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1EOSCIENCE Support Services, Inc ., Ground Water Resources Development
P.O . Box 220, Claremont, CA 91711 1 P: 909.451.6650 I F: 909.451.6638 1 www.gssiwater.com
GEOSCIENCE
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Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
PREDICTIVE MODEL RUNS OF THE
RIALTO-COLTON BASIN GROUNDWATER MODEL
CONTENTS
1.0 INTRODUCT10N ..................................................................... ,. .................................................. 1
1.1 Purpose ...................................................................................................................................... 1
1.2 Project Location ......................................................................................................................... 1
1.3 Background ................................................................................................................................ 1
1.4 Multi-Agency Cooperative Technical Effort ............................................................................... 3
2.0 PREDICTIVE MODEL DEVELOPMENT ........................................................................................ 5
2.1 Predictive Scenarios Based on 1961 Decree Pumping and 1978-2013 Hydrologic
Conditions .................................................................................................................................. 5
2.2 Predictive Scenarios with Artificial Recharge at Cactus Basins .................................................. 6
2.3 Initial Conditions for the Predictive Runs ................................................................................... 7
2.4 Additional Perchlorate Mass Loading ........................................................................................ 7
3.0 RESULTS OF PREDICT1VE MODEL RUNS FOR THE FOUR SCENARIOS ........................................... 9
3.1 Water level Changes from the Predictive Model Runs ............................................................. 9
3.2 Changes in Perchlorate Concentrations from the Predictive Model Runs .............................. 10
3.3 Plume Changes Over Time from Flow and Dilution from Artificial Re charge .......................... 11
3.4 Particle Tracking Analysis ......................................................................................................... 12
4.0 FINDINGS ................................................................................................................................ 13
5.0 ASSUMPTIONS AND LIMITATIONS .......................................................................................... 15
6.0 REFERENCES ......................................••.................................................................................. 16
FI GURES, TABLES, APPEN DICES
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FIGURES
Description
General location
Cumulative Departure from Mean Annual Precipitation -San Bernardino County
Hospital Station {1890-2013)
Water level Elevations of Rialto Basin Index Wells for 1978-2013 and 2015-2050
Predictive Period
Pumping Restrictions from the 1961 Decree Based on Water levels at Index Wells
Ria lto Basin Extraction Rights Per 1961 Decree
Exceedance Probability Curve of Table A Allocation
Annual Artificial Recharge at Cactus Basins to Apply to Predictive Model
Water levels and Mass loading at 160-Acre Source Area
Water levels and Mass loading at Western Plume Source Area
Average of Measured and Model-calculated Spring-High Water level Elevations of Rialto
Basin Index Wells with Two Predictive Scenarios
Average of Measured and Model-Calculated Spring-High Water level Elevations of Rialto
Basin Index wells with Four Predictive Scenarios
Average Annual Groundwater Budgets-Model Years 1-36
Model layer 1 Selected Hydrographs Showing Historic and Predictive Water levels
Model Layer 2 Selected Hydrographs Showing Historic and Predictive Water levels
Model layer 3 Selected Hydrographs Showing Historic and Predictive Water levels
Model Layer 5 Selected Hydrographs Showing Historic and Predictive Water levels
Model Layer 6 Selected Hydrographs Showing Historic and Predictive Water levels
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Predi ctive M o<lol Runs orthe Ria lto<olton Baoln Groundwater Model l ·Dec-15
FIG UR E:S (Continued)
No . Description
18 Predicted Perchl orat e Concentrations for Well EMW.038 -2000-2050
19 Predicted Perchlorate Concentrations for Wells 1S/5W-3AS a nd 1S/5W-3A6-2000·2050
2 0 Pred icted Pe rchlorate Conce ntrations for Well Rialto-6-2000-2050
21 Pre d icted Perchl orate Con centrat ions fo r We ll CPW-16A t h rough 160-2000-2050
22 Predicted Perchlo rate Concentrations fo r Well PW-148 and PW -14C-2000·2050
23 Predicted Perchlorat e Concentrations for Well CPW·17C a nd CPW-170 -200[).2050
24 Pre d ict ed Pe rchlorate Concentration s fo r W ell Co lton-15 -2 00[).2050
25 Predicted Perchlo ra te Concentrations fo r Well Rialto-3 -2015-2050
26 Predicted Perchlo rate Concentrations for Well Miro-2-2015 ·20 50
27 Predicted Perchlorat e Concentrations for Well Miro-3 -20 15 ·2050
28 Pred icted Pe rchlo ra t e Concentration s for Well F-49A-2015·2 050
29 Predicted Perchlo ra te Concentrations for Well F-13A-2015 ·20 50
30 Pre dicted Perchlo"te Concentratio ns for Well F-138-2015·205 0
31 Pre d icted Perch lora t e Con cent ra t ions for Well EW-1 -2015-2050
32 Predicted Perchlorate Concentrations for Well M-15-2015 ·20 50
33 Pre dicted Perchlorate Concentrations for Well M-10-2015 ·2050
34 Pre dicted Pe rchlo rat e Co ncentrat ions for Well M-2 Zone l -20 15-2050
35 Pred icted Perchlo ra t e Concentration s for Well M·2 Zone 2 -2015·2050
36 Predicted Perchlo ra te Concentrations for Well M·2 Zone 3 through 7-2015-2050
37 Predicted Perchlora te Concentratio ns for Well M-4S-2 0 15·2050
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FIGURES (Continued}
Description
Predicted Perchlorate Concentrations for Well M-40 -2015-2050
Predicted Perchlorate Concentrations for Well M-5 Zone 1-2015-2050
Predicted Perchlorate Concentrations for Well M-5 Zone 2 -2015-2050
Predicted Perchlorate Concentrations for Well M-5 Zone 3 through 7-2015-2050
Predicted Perchlorate Concentrations for Well M-6 Zone 1-2015-2050
Predicted Perchlorate Concentrations for Well M-6 Zone 2 through 3-2015-2050
Predicted Perchlorate Concentrations for Well M-6 Zone 4 through 7-2015-2050
Predicted Perchlorate Concentrations for Well N-135-2015-2050
Predicted Perchlorate Concentrations for Well N-130-2015-2050
Predicted Perchlorate Concentrations for Well N-188-2015-2050
Predicted Perchlorate Concentrations for Well N-18C-1-2015-2050
Predicted Perchlorate Concentrations for Well N-18C-2-2015-2050
Predicted Perchlorate Concentrations for Well N-20 Zone 1 through 2-2015-2050
Predicted Perchlorate Concentrations for Well N-20 Zone 3-2015-2050
Predicted Perchlorate Concentrations for Well N-20 Zone 4 through 6-2015-2050
Predicted Perchlorate Concentrations for Well F-32-2015-2050
Model-Predicted Perchlorate Plume in Selected Periods for Model layer 3 -Scenario 2
with Mass loading
Model-Predicted Perchlorate Plume in Selected Periods for Model layer 3 -Scenario 4
with Mass loading
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FIGURES (Continued)
Description
Model-Predicted Perchlorate Plume in Selected Periods for Model Layer 5-Scenario 2
with Mass Loading
Model-Predicted Perchlorate Plume in Selected Periods for Model Layer 5 -Scenario 4
with Mass Loading
Model-Predicted Perchlorate Plume in Selected Periods for Model Layer 6-Scenario 2
with Mass Loading
Model-Predicted Perchlorate Plume in Selected Periods for Model Layer 6-Scenario 4
with Mass Loading
Backward Particle Tracks -Scenario 1
Backward Particle Tracks-Scenario 2
Backward Particle Tracks-Scenario 3
Backward Particle Tracks-Scenario 4
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TABLES
Description
Assumptions for Predictive Model Scenarios
Average Annual Groundwater Pumping -City of Colton Wells for Scenario 1 and 3 -
Year 2015-2050
Average Annual Groundwater Pumping -City of Colton Wells for Scenario 2 and 4 -
Year 2015-2050
Average Annual Groundwater Pumping -City of Rialto Wells for Scenario 1 and 3 -
Year 2015-2050
Average Annual Groundwater Pumping -City of Rialto Wells for Scenario 2 and 4 -
Year 2015-2050
Average Annual Groundwater Pumping -West Valley Water District Wells for Scenar io
1 and 3-Year 2015-2050
Average Annual Groundwater Pumping -West Valley Water District Wells for Scenario
2 and 4-Year 2015-2050
Average Annual Groundwater Pumping -Fontana Water Company Wells for Scenario 1
and 3-Year 2015-2050
Average Annual Groundwater Pumping -Fontana Water Company Wells for Scenario 2
and 4-Year 2015-2050
Average Annual Groundwater Pumping -Outside of 1961 Decree Area for Scenario 1
and 3-Year 2015-2050
Average Annual Groundwater Pumping -Outside of 1961 Decree Area for Scenario 2
and 4-Year 2015-2050
Annual Groundwater Pumping for Scenario 1 -2015-2050
Annual Groundwater Pumping for Scenario 2-2015-2050
Annual Project Recharge in cactus Basins-2015-2050
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TABLES (Continued)
No. Description
15 Annual Groundwater Pumping for Scenario 3-2015-2050
16 Annual Groundwater Pumping for Scenario 4-2015-2050
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Ltr.
A1
A2
A3
B1
B2
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B4
Cl
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APPENDICES
Description
GEOSCIENCE's Responses to UTC's 21-Sep-15 Comments on the Draft Predictive Model
RunsTM
GEOSCIENCE's Responses to City of Colton's 22-Sep-15 Comments on the Draft
Predictive Model Runs TM
GEOSCIENCE's Responses to County/Geo-Logic Associates' 9-0ct-15 Comments on the
Draft Predictive Model Runs TM
Chemographs of Perchlorate Concentrations for Selected Wells in the Rialto-Colton
Basin for Scenarios 1 and 3 without Mass loading
Chemographs of Perchlorate Concentrations for Selected Wells in the Rialto-Colton
Basin for Scenarios 1 and 3 with Mass Load ing
Chemographs of Perchlorate Concentrations for Selected Wells in the Rialto-Colton
Basin for Scenarios 2 and 4 without Mass loading
Chemographs of Perchlorate Concentrations for Selected Wells in the Rialto-Colton
Basin for Scenarios 2 and 4 with Mass Loading
Model-Predicted Perchlorate Plumes in Selected Periods for Model Layers 3, 5 and 6 -
Scenarios 1 and 3 without Mass Loading
Model-Predicted Perchlorate Plumes in Selected Periods for Model Layers 3, 5 and 6 -
Scenarios 1 and 3 with Mass loading
Model-Predicted Perchlorate Plumes in Selected Periods for Model Layers 3, 5 and 6 -
Scenarios 2 and 4 without Mass Loading
Model-Predicted Perchlorate Plumes in Selected Periods for Model Layers 3, 5 and 6 -
Scenarios 2 and 4 with Mass Loading
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1.0 INTRODUCTION
1.1 Purpose
PREDICTIVE MODEL RUNS OF THE
RIALTO-COLTON BASIN GROUNDWATER MODEL
As part of the process to refine the Rialto-Colton Groundwater Model, GEOSCIENCE Support Servlces,
Inc. (GEOSCIENCE) was tasked with conducting four predictive model runs for the Rialto-Colton
Groundwater Basin. This technical memorandum evaluates Mure water level effects of extending
status quo pumping for 36 years into the future as compared to water level conditions resulting from all
entities in the Basin adhering to the pumping restrictions of the 1961 Decree for that 36-year period.
Predictive runs will also be used to evaluate the water level and perchlorate concentrations as a result of
adding artificial recharge at the Cactus Basin pond~ and simultaneously extracting that volume through
existing wells throughout the Rialto-Colton Basin.
1.2 Project Location
The Rialto-Colton Groundwater Basin (Rialto-Colton Basin or Basin) is in western San Bernardino County,
California, approximately 60 miles east of Los Angeles (see Figure 1}. The Rialto-Colton Basin is the
subject of significant groundwater management issues . Such issues include perchlorate and TCE
contamination that has impacted and continues to impact the Rialto-Colton Basin, requiring extensive
groundwater investigation and remediation efforts. The water purveyors that manage the Rialto-Colton
Basin also believe that due to significant drawdown in the Rialto-Colton Basin water levels, efforts will
be required to recharge the Rialto-Colton Basin using other water sources. Such serious issues require a
groundwater model that all stakeholders in the Basin can rely upon.
1.3 Background
The first numerical groundwater model of the Rialto-Colton Basin was developed in 2001 by
Woolfenden and Koczot of the United States Geological Survey {USGS) to simulate the aquifer response
to artificial recharge. Geo-Logic Associates, Inc. (GLA), on behalf of the County of San Bernardino,
developed a groundwater flow and solute transport model of the upper Rialto-Colton Basin to evaluate
the groundwater impacts originating from the County Remedy Area in 2007. The most recent
County/GLA model update was conducted in 2010. CH2M Hill, on behalf of the United States
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Pred ictive Model Runs of the Rialto-Colton Basin Groundwater Model l·Dec-15
Environmental Protection Agency (USEPA), adapted the County/GLA model in 2010 during preparation
of the Remedial Investigation/Feasibility Study (RI/FS) and Record of Decision (ROD). In 2012, CH2M Hill
extended the model domain throughout the Rialto-colton Basin. ERM-West, Inc. (ERM), on behalf of
the Emhart Industries, Inc. (Emhart), updated the USEPA/CH2M Hill 2012 model by incorporating data
from relevant stakeholders. The ERM/Emhart draft modeling report was submitted to the USEPA in
April 2013. There are some agreements and disagreements among these existing models.
GEOSCIENCE was tasked with developing a Joint Groundwater Model (JGWM) that is spatially and
temporally refined from that of the various existing models of the Rialto-Colton Basin. Specifically, the
tasks included:
• Task 1: Prepare for and Attend Kickoff Meeting (Including Preparation of Modeling Work Plan)
• Task 2: Review the Existing Rialto-Colton Groundwater Models
• Task 3: Develop a 3-D lithological Model and Refine Model Layers
• Task 4: Conduct Water Balance Analysis
• Task 5: Recalibrate Model with Refined Model layers, Cell Size, Stress Period and Recharge and
Discharge Terms, and Perform Sensitivity Analysis
• Task 6: Develop and Calibrate Solute Transport Model for Perchlorate
• Task 7: Develop and Run Predictive Model Scenarios
• Task 8: Prepare Summary Report
• Task 9: Prepare for and Attend Bi-Weekly Progress Conference Calls
The JGWM contains a flow model component as well as a solute transport model component to
evaluate potential impacts of various groundwater management and water quality remediation program
scenarios on existing perchlorate plumes.
The calibration of the JGWM represented a combined effort which incorporated input and comments
from the Rialto-Colton Technical Advisory Committee (TAC). During the process of the solute transport
model calibration, the TAC decided to extend the solute transport model calibration from 2000 through
2011 to 2000 through 2014. The purpose of the model extension was to include the dry hydrology that
occurred during the past three years such that the effects on groundwater level elevations, flow
directions, and seepage velocity would be included in the model. In addition, the model was calibrated
to recent perchlorate data collected from wells PW-13, PW-14, CPW-16 and CPW-17, which show the
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Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
recent extent of the perchlorate plumes. The flow model calibration period was also updated from 1945
through 2011 to 1945 through 2014 in order to generate input data for the solute transport model.
The JGWM flow model was successfully calibrated through a steady state calibration for 1945 and a
transient calibration from 1945 through 2014. The transient calibration used annual stress periods from
1945 through 1969 and monthly stress periods from 1970 through 2014. The JGWM steady state flow
model calibration has a global budget error of 0 .0096 while the transient flow model calibration has a
global budget error of 0.02%; a global budget error of less than 1% is considered acceptable. The
acceptable model calibration Is also reflected by a relative error of 4 .3% for the steady state calibration
and 6.2% for the transient calibration. Common modeling practice is to consider a good fit between
measured and model-calculated water levels if the relative error is below 10% (Spitz and Moreno, 1996).
The JGWM solute transport model was successfully calibrated from 2000 through 2014 using a monthly
stress period. The solute transport model calibration has relative error of 2.7% which is well below the
recommended modeling error of 10%. This technical memorandum covers Task 7 of this study-to
develop and run predictive model scenarios prior to the final report on all aspects of developing and
running the Rialto-Colton JGWM.
1.4 Multi-Agency Cooperative Technical Effort
The predictive model runs process of the JGWM for the Rialto-Colton Groundwater Basin was a
cooperative technical effort involving:
• Representatives of participating parties, including San Bernardino Valley Municipal Water
District (Valley District), West Valley Water District (West Valley or WVWD), Goodrich
Corporation (Goodrich), City of Rialto, and City of Colton;
• Representatives of the County of San Bernardino's consultant GLA;
• Representatives of participating parties ' consultant Balleau Groundwater, Inc. (BGW); and
• Technical advisors representing the USEPA, USEPA's consultant CH2M Hill, and the USGS.
Collaboration by these representatives to develop the predictive model runs of the Rialto-Colton
Groundwater Basin was achieved through participation at project conference calls, model workshops,
and reviewing and commenting on a draft technical memorandum (TM). A total of five conference calls
and two model workshops were held during the model calibration periods.
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Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
GEOSCIENCE presented preliminary results of the predictive model runs to the TAC at the 23-Jul-15
model workshop. The comments received from the TAC on preliminary results were incorporated in the
draft Predictive Model Runs TM issued on 11-Sep-15 (GEOSCIENCE, 2015).
From 11-Sep-15 through 25-Sep-15, comments on the draft Predictive Model Runs TM were received
including:
• September 21, 2015 from United Technologies Corporation (UTC; see Appendix Al for
comments and GEOSCIENCE's responses),
• September 22 , 2015 from the City of Colton (see Appendix A2 for comments and GEOSCIENCE's
responses},
• October 9, 2015 from the County of San Bernardino/GLA (see Appendix A3 for comments and
GEOSCIENCE's responses).
These comments are incorporated in this final Predictive Model Runs TM.
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2.0 PREDICTIVE MODEL DEVELOPMENT
Based on the analysis of historical precipitation, the 36-year period from January 1978 through
December 2013 was selected for the hydrologic base period for the predictive model scenarios. This
base period covers both wet and dry hydrologic cycles and the average precipitation is approximately
the same as the long-term average (see Figure 2). By applying the 1978-2013 hydrologic conditions
(natural recharge, groundwater inflow and outflow, plus pumpage) to the model for the next 36 years
(2015-2050), the model should duplicate water levels from 1978-2013 (Figure 3). Having real hydrologic
data that is representative of the changing wet and dry conditions for a specific area and being able to
use those conditions in a predictive model allows the model to incorporate local and temporal
variations; using just average conditions often misses these area-specific variations. To run the future
predictive model runs, the pumpage for the predictive period from 2015-2050 was replaced with two
different pumping rates from the existing wells within the model area. These yearly pumping volumes
were further adjusted based upon the predicted water levels for each year, as specified by the water
level triggers outlined in the 1961 Decree (see Figure 4). Table 11ists the assumptions for the predictive
model scenarios . Tables 2 through 9 show the total pumping for the four major pumpers inside the
1961 Decree area for the predictive runs. Tables 10 and 11 list the total pumpage for those within and
outside the 1961 Decree area for the predictive model runs.
2.1 Predictive Scenarios Based on 1961 Decree Pumping and 1978-2013 Hydrologic Conditions
In Scenario 1, the pumping rates for all the wells within the area were subjected to the conditions of the
1961 Decree (see Figure 5 and Tables 2-11) for all wells except for the Fontana Water Company (Fontana
or FWC) wells. For the Fontana wells, the actual average pumping rates from 2010-2014 were applied
to each of the predictive years In the future. Table 12 shows the annual groundwater pumping for each
individual well under Scenario 1 conditions.
in Scenario 2, the pumping rates for all the wells within the area were subjected to the conditions of the
1961 Decree (see Figure 5 and Tables 2-11) and applied to each of the predictive years in the future .
Table 13 shows the annual groundwater pumping for each individual wells under Scenario 2 conditions.
In this study, it is assumed that deductions in pumping rates were applied to all the extr<!ction rights per
the 1961 Decree (i.e., 3,900 acre-ft/yr for Colton, 4,366 acre-ft/yr for Rialto, 6,104 acre-ft/yr for WVWD,
and 920 acre-ft/yr for Fontana). This assumption is slightly different than the actual statement (i .e.,
paragraph 7) in the 1961 Decree where it stated there were certain amounts-890 acre-ft/yr for Colton,
1,520 acre-ft/yr for Rialto, 510 acre-ft/yr for WVWD and 370 acre-ft/yr for Fontana-not subject to the
pumping rate deductions. GEOSCIENCE roughly estimated the difference in pumping caused by this
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discrepancy in the assumption and it was only 690 acre-ft/yr for Scenario 1 and 140 acre-ft/yr for
Scenario 2 . Total pumping within the Basin was 28,400 acre-ft/yr for Scenario 1 and 22,448 for
Scenario 2 . The anticipated impacts due to this discrepancy will be very small.
2.2 Predictive Scenarios with Artificial Recharge at Cactus Basins
Two additional scenarios (Scenarios 3 and 4) were developed to evaluate the basin-wide effects of
artificial recharge at the Cactus Basins. The location where this recharge was applied between April and
October (Cactus Basins 3 and 3A) is shown in Figure 1. The annual quantity of water input to the
artificial recharge basin was determ ined by the availability of State Water Project (SWP) water for each
year corresponding to the historic conditions in the predictive year.
The hydrology was subdivided into five categories based on the availability of SWP water (Figures 5 and
6) including wet, above normal, normal, below normal, and dry. These five categories are delineated
based on the exceedance probability of annual Table A allocation for SWP water. For example, annual
Table A allocation for SWP water with an exceedance probability between 0% and 20% was classified as
a wet year. If the annual Table A allocation for SWP water exceedance probability was between 20%
and 40%, it was considered an above normal rainfall year. An exceedance probability of 40% to 60% was
a normal year. A year with between 60% and 80% of exceedance probability is considered a below
normal year. Finally, an annual Table A allocation of SWP water with an exceedance probability
between 80% and 100% was considered a dry year. The following table summarizes the initial annual
amount of artificial recharge under various local hydrologic conditions for Scenarios 3 and 4.
Assumptions for Artificial Recharge Quantity under Local Hydrologic Conditions
. I I Annual Artificial Recharge iit C.ami5 Basin:;, acm-ft/yr 1
I
. . . .. . > > -• • >
S-U!nario Hydrologv : -------~~'b"c;~~-----~-Bt!i~ -----
· -. • Wt!t 1 . .. . . I :.Normal I . Dry
1
1
NC?f"'":';al , Nonn:nl
l-------~---1 _:~~8-~~~---7,o.oo ___ .L __ ~~~oo ----·~--~~~----t--~-----~---E. ____ J
I 4 I 1978-2013 I 7,000 i 5,000 I 3,000 j' 0 _j_ 0 I L ____ __._ ____ J _______ _,_ _____ , ___ ...L__. __ .. -------·--'
Based on the criteria shown in the table above, the annual recharge volumes (shown on Figure 7 and
Table 14) were developed for Scenarios 3 and 4 . As shown, the average annual recharge was 2,670
acre-ft/yr during the 36-year simulation period. For the purpose of this study, it was assumed that the
recharge volume rate was not affected by evapotranspiration, since evapotranspiration is expected to
be very small.
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Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
Once the amount of recharge was applied for each year, a percentage of that total volume recharged
was apportioned as potential additional pumpage to each of the wells belonging to the City of Colton,
the City of Rialto or WVWD within the 1961 Decree boundary. The distribution of this pumpage was
based upon the percentage of water rights specified in the 1961 Decree .
In Scenario 3, annual artificial recharge was applied to Cactus Basins 3 and 3A based on the recharge
table above. Total pumping from each well was the total from Scenario 1. For all City of Colton, City of
Rialto and WVWD wells, a percentage of the annual Cactus Basins recharge was added to each well as
additional pumpage-regardless of predicted water levels and decreed pumping restrictions (see Table
15).
In Scenario 4, the annual artificial recharge was applied to Cactus Basins 3 and 3A based on the recharge
table above. Total pumping from each well was the total from Scenario 2. For all City of Colton, City of
Rialto and WVWD wells, a percentage of the annual Cactus Basins recharge was added to each well as
additional pumpage-regardless of predicted water levels and decreed pumping restrictions (see Table
16).
2.3 Initial Conditions for the Predictive Runs
Initial water levels for all of the predictive runs were taken to be Basin water levels for the year 2014 (at
the end of the flow model calibration runs). The initial perchlorate concentrations for all of the
predictive scenario runs were the perchlorate concentrations throughout the Basin at the end of 2014-
as determined from the solute transport calibration runs.
2.4 Additional Perchlorate Mass Loading
In areas where significant contamination exists, the effect of significant water level rises into -a zone
where the contaminant may have been previously bound-up by a less permeable material. In addition, a
significant downward percolation of rainfall infiltration can cause contaminants to be transported out of
the less permeable material and down to the water table. To account for these conditions, mass
balance evaluations can be made such that the increase in contaminant concentrations can be matched
with the transport model.
As part of the Rialto-Colton solute transport modeling effort, a mass loading analysis was conducted at
wells where there have been documented increases in concentration resulting from water level
changes. Figures 8 and 9 illustrate how the mass loading analysis was developed by first establishing a
relationship between the observed water levels and mass loading for the for the 2000-2014 period . The
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Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
model results were then evaluated to see where other mass loading relationships may be located . The
relationships from the evaluations found in the 2000-2014 time period was then applied back to the
1978-1999 period to establish the mass loading for the hydrology from 1978-2013 that could be applied
to future scenarios using the hydrology for the 2015-2050 predictive runs. This approach is consistent
with comments originating in TAC workshops and is considered a conservative approach. As discussed
by Mr. Ron Falta (City of Colton), the mass loading from same level storm events would tend to decrease
over time. This decrease happens because when the water level goes up and reaches a new high
elevation, the perchlorate mass stored in the vadose zone is washed out, resulting in a corresponding
increase in concentration. After this initial water level rise, there will be less perchlorate mass left in the
vadose zone. Therefore, if water levels rise up to or below the height of the previous water level rise,
the perchlorate concentration will still increase -but at a Jesser rate than that observed previously.
However, in order to evaluate the worst case for perchlorate contamination, future mass loading
amounts are assumed to be the same as the historical ones without any reductions.
For each predictive scenario, two solute transport model runs were made : one without mass loading
and one with the mass loading developed from the calibration run. These two bookend solute transport
model runs were used to evaluate the i mpacts from recharge in the Cactus Basins. It is Important to
note that the solute transport scenario without mass loading was not intended to neglect that mass
loading occurs, but rather to identify and understand the difference that mass loading makes.
GEOSCIENCE
""V7"" 8
Valley District/West Valley/Goodrich/
City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
3.0 RESULTS OF PREDICTIVE MODEL RUNS FOR THE FOUR SCENARIOS
Based upon the specified pumping quantities for each scenario and the artificial recharge volumes
added to Scenarios 3 and 4, predictive model runs were made and water levels and perchlorate
concentrations were recorded for many of the wells within the Basin.
3.1 Water Level Changes from the Predictive Model Runs
Figure 10 shows the predicted water level at the index wells based upon the Baseline Scenarios
(Scenarios 1 and 2). The hydrograph for Scenario 1 (based upon the assumption that all parties except
Fontana are held to the 1961 Decree pumping restrictions) rose about 30 ft in the early years and
declined about 35 ft below the 2015 level by 2050. The hydrograph for Scenario 2 (based upon the
assumption that all water producers, including Fontana, are restricted to the 1961 Decree pumping
restrictions} shows a greater rise in the early years and a 2050 water level closer to the initial 2015
water level. Annual pumping during this time period was closer to the safe yield of the Basin. The
difference in water levels between the two scenarios ranges from 20 to 35ft, with higher water levels
for the predictive runs where all parties adhere to the 1961 Decree.
Figure 11 shows the predictive water levels for all four predictive scenarios. The dashed green and
orange lines show the effects of Baseline Scenarios 1 and 2 from Figure 10 and the solid lines represent
the water levels from Scenarios 3 and 4. The later two have recharge at the Cactus Basins added into
the model and simultaneously extracted from the Basin through extra pumping allowances at Project
wells belonging to the companies who paid for the recharged water. The overall effect of the recharge
in the index wells is less than a 3-ft rise in water levels at the end of the 36-year period (2050).
Figure 12 shows the inflow and outflow terms for the average annual groundwater budgets for the Basin
under each predictive model run . The only real differences in the budget boxes for the four scenarios
are changes in groundwater pumping and artificial recharge of imported water. This change results in
corresponding changes in the underflow to North Riverside Basin and changes to groundwater storage .
Representative hydrographs for wells in model layers 1, 2, 3, 5 and 6 are shown in Figures 13 through
17. These hydrographs show similar rises in water levels for both scenarios where wells within the 1961
Decree area are subjected to the 1961 Decree restrictions (Scenarios 2 and 4) as well as for those where
all pumpers except Fontana were held to the 1961 Decree restrictions (Scenarios 1 and 3). For layers 1
and 2 (Figures 13 and 14) there is essentially no change in water level between the four scenarios (only
one line is visible as the orange and green lines are on top of each other). In model layer 3 (Figure 15),
there is a very minor difference in water levels between Scenarios 3 and 4 . In layers 5 and 6 (Figures 16
GEOSCIENCE
"""""'V7* 9
Valley District/West Valley/Goodrich/
City of Rialto/City o f Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
and 17), the water levels for Scenarios 3 and 4 have differences of as much as 10ft. The only difference
between the two scenarios is that the Fontana wells were not kept to the pumping stipulated by the
1961 Decree . These differences in water levels were more obvious upgradient of the Cactus Basins than
below the ponds.
3.2 Changes in Perchlorate Concentrations from the Predictive Model Runs
Examining perchlorate concentrations in wells from the predictive model runs gives a good idea of the
effects of recharging water at the Cactus Basins. Figure 18 shows the predicted perchlorate
concentrations of Well EMW-03B located northwest of the spreading grounds. The concentration In the
well is predicted to rise to about 65 micrograms per liter {~L) in 2016-2017 and then decline rapidly to
about 5 11g/L in 2020 and trace amounts in 2035. The difference in concentrations with or without
recharge is negligible as both Scenarios 2 and 4 plot on top of each other.
Figure 19 for Well 1S/SW-3AS and 1S/5W-3A6, which is located near the spreading grounds, shows a
very pronounced difference between the Baseline Scenario 2 and Project Scenario 4 with recharge at
the Cactus Basins. The significant dilution of the perchlorate is evident from the much faster decline in
the perchlorate concentration around 2016-2017 from 130 to almost 0 IJ.g/L as a result of the recharge.
In the Baseline Scenario (Scenario 2), the concentration stays up at 175 IJ.g/L until about 2020 and then
declines to trace amounts around 2022.
Figure 20 shows predicted perchlorate concentrations in the Rialto 6 well located near the spreading
grounds. The orange line on this figure shows that as the concentrations decline, the concentration for
perchlorate in Scenario 4 {or Project scenario) is less than that for Scenario 2 (Baseline scenario} due to
the dilution effect of the additional water recharged at the ponds.
The perchlorate concentrations at Wells CPW 16A through 160 and PW-148 and PW-14C (Figures 21
and 22) show the effect of the recharge diluting the perchlorate and also moving the plume farther
southeast. The two concentration mounds and troughs in the vicinity of both of these wells is a result of
plume movement in the area plus the dilution effect from artificial recharge.
The perchlorate concentrations in Wells CPW-17C and 170 (Figure 23} further illustrate the dilution
effect on groundwater downgradient from the recharge ponds; concentrations in Scenario 4 are much
lower than concentrations in Scenario 2. After 2040, the perchlorate concentrations under Scenario 4
drop to two-thirds of the value under Scenario 2, but are still well above the drinking water standard.
GEOSCIENCE
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Valley District/West Valley/Goodrich/
City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
Figure 24 shows the perchlorate in Well Colton-15, located just east of the Unnamed fault that crosses
the Basin perpendicularly to the groundwater flow direction. The character of the plume shows that the
dilution has not had as much effect here as it did farther upgradient and to the northwest. At this point,
the concentration of perchlorate reaches approximately 40 ~g/l and the dilution effect is not nearly as
significant as that in wells to the northwest.
Figures 25 through 31 show perchlorate concentrations through time for Scenario 2 and Scenario 4 in
pumping wells Rialto-3 , Miro-2, Miro-3, F-49A, F-13A, F-138, and EW-1 . Figures 32 through 53 show
perchlorate concentrations through time for Scenario 2 and Scenario 4 in monitoring wells M-1, M-2,
M-4, M-5, M-6, N-13, N-18, N-20, and F-32 . In general, the anticipated impact on the Western Plume
from Project recharge will not be significant. Dilution effect from the Project recharge is observed in
wells EW-1 and M-4. Perchlorate concentrations will slightly increase under the Project recharge
conditions in wells M-5, M-6, and N-18-located northwest of the Cactus Basins. These slight increases
are most likely the result of recharge downstream slowing down the plume movement upstream of the
recharge ponds.
Attached Appendices B1 through B4 show the chemographs of perchlorate concentrations for additional
target wells within the Basin. Appendices Bl and B2 compare concentrations at the wells based on
Scenarios 1 and 3 while Appendices B3 and B4 compare concentration at the wells based on Scenarios 2
and 4.
3.3 Plume Changes Over Time from Flow and Dilution from Artificial Recharge
Figures 54 through 59 illustrate the movement of the major plumes throughout the area for model
layers 3, 5, and 6 over various time frames (Initial, Model Year 13, Model Year 21, and Model Year 36 or
the end of model run).
Examination of the plumes for the area based upon Scenario 2 and Scenario 4 for the specified years
show how the concentrations move through the Basin from northwest to southeast. The decreases in
the size of the plumes and decreased concentration in each layer between the snapshots for Scenario 2
and Scenario 4 best illustrate the minor dilution effects of the artificial recharge.
Appendices C1 through C4 show additional plume shapes over time for different layers with and without
additional mass loading. Appendix C1 shows the plume shapes for Scenarios 1 and 3 without mass
loading for model layers 3, 5 and 6. Appendix C2 shows the plume shapes for Scenarios 2 and 4 with
mass loading for layers 3, 5, and 6. Appendix C3 shows the plume shapes for Scenarios 2 and 3 for layers
GEOSCIENCE
""V7" 11
Valley District/West Valley/Goodrich/
City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
3, 5, and 6 with no mass loading; and Appendix C4 shows the plume shapes for Scenarios 2 and 4 for
layers 3, 5, and 6 with mass loading.
3.4 Particle Tracking Analysis
In this study, MODPATH was used to calculate the particle tracking zones for each of the pumping wells
during the predictive modeling period. MODPATH is a post-processing package developed to compute
three-dimensional flow paths (i.e., particle tracking) using output from the groundwater flow model.
MODPATH does not take into account dispersion, retardation, or half-life decay. The results of
MODPATH simply provide an Indication of the direction and rate of groundwater flow.
Figures 60 through 63 show the results of particle tracking analysis for Scenarios 1 through 4,
respectively. In general, the sizes of capture zones are very similar under no Project recharge conditions
and Project recharge conditions. For the remediation wells (i.e., Wells EW-1, Rialto-3, F-49A, Miro-2,
Mlro-3, and Rialto-G), the change in the widths of capture zones caused by Project recharge are not
significant. This observation indicates that the Project recharge at Cactus Basins will barely have any
impacts on the plume remediation.
GEOSCIENCE
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Valley District/West Valley/Goodrich/
City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
4.0 FINDINGS
Analysis of the predictive model runs for the four scenarios Illustrate that recharging approximately
2,700 acre-ft/yr of water at Cactus Basins 3 and 3A while simultaneously extracting that same volume
through wells throughout the Basin has a very minimal effect on water levels or perchlorate
concentrations throughout the Basin. Results of the analysis Include the following.
• The baseline predictive model runs (Scenarios 1 and 2) show water level differences of 20-35 ft
between the runs when all parties adhere to the 1961 Decree and when all parties except
Fontana adhere to the 1961 pumping restrictions. The higher water levels represent the lower
pumping conditions of Scenario 2 when all parties adhered to the 1961 Decree.
• Water levels increased up to 2-ft in the vicinity of the recharge ponds as a result of recharge
versus no recharge. Water level increases due to recharge were Imperceptible elsewhere in the
Basin.
• Slight increases (2-5 ~L) in perchlorate concentrations were seen in wells upgradient and
northwest of the recharge ponds (where existing concentrations are already 70-200 ~L) as a
result of recharge versus no recharge. These slight increases are most likely the result of the
recharge downstream slowing down the plume movement upstream of the recharge ponds.
• Much earlier declines of perchlorate concentration from 175 to 0 ~g/L were seen immediately
downgradient of the ponds as a result of dilution of the groundwater from artificial recharge at
the ponds.
• Some downgradient wells show slight increases in perchlorate for the runs with the additional
recharge earlier than they do without the recharge. However, the magnitude of perchlorate
concentration is still generally the same as without the recharge -only the timing of the peak is
different.
• Perchlorate concentrations downgradient of the recharge ponds decrease with recharge versus
no recharge as a result of dilution from recharged water.
• There is no significant change in the size of the geographic footprint of the perchlorate plumes
with or without recharge at the Cactus Basins, but concentrations are decreased from dilution.
• The calibrated model overestimates or underestimates the perchlorate concentrations in some
wells near the boundary of the Eastern Plume (e .g., N-2S, EMW-5A, EMW-38, and PW-11). This
GEOSCIENCE
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Valley District/West Valley/Goodrich/
City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
result is caused by minor differences in flow direction between those simulated in the flow
model and actual conditions.
• Even if the perchlorate concentration at one of the calibration wells is slightly above or below
the historic conditions, because the model used the same initial conditions for both the base
scenario and Project scenario, any resulting change in concentrations between the two runs is
reflect ive of only the differences in the No Project and the Project scenario runs.
• The model predictive results show no anticipated significant groundwater contamination
impacts from the proposed Project, suggesting that no additional mitigation measures are
needed beyond those that have been previously planned and are in place .
GEOSCIENCE
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Valley District/West Valley/Goodrich/
City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
5.0 ASSUMPTIONS AND LIMITATIONS
While groundwater models are useful tools for evaluating water levels, basin management strategies
and remediation strategies, all models are a simplified approximation of a complex hydrogeologic
system. As such, there are certain built-in assumptions. The accuracy of the predictions made by the
model is therefore dependent on the simplifying assumptions used. Assumptions for the JGWM include
the following:
• Groundwater flow is assumed to be horizontal within each model layer and vertical between
layers,
• The layers are horizontally isotropic,
• Changes In the groundwater storage in the model layers occur Instantaneously with changes in
hydraulic head, and
• Recharge, like that from return flow, reaches the water table immediately (i.e., no time delay for
travel time through unsaturated materials).
GEOSCIENCE --=:::y;:-15
Valley District/West Valley/Goodrich/
City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model 1-Dec-15
6.0 REFERENCES
CH2M Hill, 2012 . Numerical Groundwater Flow Model Report, Rialto-Colton Basin .1 June.
County of San Bernardino Superior Court, 1961. Decree no . 81264 in the matter of The Lytle Creek Water
and Improvement Company v. Fontana Ranchos Water Company et al. December 22, 1961.
Geo-Logic Associates, Inc. (GLA), 2010 . Updated Hydrogeologic Model of Perchlorate Transport
Conditions in the Northern RCB, San Bernardino County, California. February.
GLA, 2007. Hydrogeologic Model of Perchlorate Transport Conditions In the Northern RCB, San
Bernardino County, California. March.
GEOSCIENCE Support Services, Inc. (GEOSCIENCE), 2015. Draft Technical Memorandum, Predictive
Model Runs of the Rialto-Colton Groundwater Basin Model. September 11, 2015.
GEOSCIENCE, 1994. Opinions as to Conditions in the Rialto-Colton Groundwater Basin.
Hardt, W.F~, and Hutchinson, C.B ., 1980. Development and Use of a Mathematical Model of the San
Bernardino Valley Ground-Water Basin, California: U.S. Geological Survey Open-File Report 80-
516,80 p.
Paulinski, S., 2012. Structural, Hydrogeologic Framework, and Textural Model of the Rialto-Coloton
Basin and the Chino and North Riverside Area . M .S. Thesis, California State University,
Sacramento.
Spitz, K. and Moreno, J., 1996. A Practical Guide to Groundwater and Solute Transport Modeling.
Oxford University Press, Inc.
U.S . Geological Survey (USGS), 2005. Numerical Simulation of Ground-Water Flow and Assessment of
the Effects of Artificial Recharge in the Rialto-Colton Basin, San Bernardino County, California.
L.R. Woolfenden and K.M. Koczot.
USGS, 2001. Numerical Simulation of Ground -Water Flow and Assessment of the Effects of Artificial
Recharge in the Rialto-Colton Basin, San Bernardino County, California. L.R. Woolfenden and
K.M. Koczot.
Woolfenden, L.R ., and Kadhim, D., 1997. Geohydrology and Water Chemistry In the Rialto-Colton Basin,
San Bernardino County, California: Water-Resources Investigations Report 97-4012, 101 p.
GEOSCIENCE
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Valley District/West Valley/Goodrich/
City of Rialto/City of Colton
Predlc!lve Model Runs of the Rialto-Colton Bosin Grovnctwot u Model 1-0et-15
Woolfenden, LR., and Koczo t, K.M., 200 1 . N umerical Si mulat ion o f Gro u nd-Water Fl ow and Assessm ent
of the Effects of Artificial Recna r re in the Ri alto-Co lton Bas i n, San Bernardino County, California.
USGS Report.
GEOSCIENCE
"""V"" 17
Vallev OISirlct/Wut Vallev{Goodrich/
City of Rlolto/City of Colton
FIGURES
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V•lley District/West VaUey/Goodrich/Oty of Rlallo/aty of Colton
Predldlw Model Runs of the Rlalbl.colto11 Basin Gnlundwater Model
Average of Measured and Model-calculated Spring-High Water Level Elevations
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1-Dto-15 GEOSCIENCE SUpport Senrlms, Inc.
Veley District/West Vdey/Goodrtch/City of RlatiD/City of Colton
l'redlctlw Madel Runs of the RJalto.<:olton a.Jn Groundwater Model
Average of Measured and Model-Calculated Spring-High Water Level Elevations
of Rialto Basin Index Wells with Four Predictive Scenarios
1,0~ ~------------------------------------------------------r=====================~ • Measured --calibration
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22,450
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2005 2010 2015 2020 2025 2030 2035
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800
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300
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800
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Pr~ Modellb.lns of the llalto-Colton S.1ln Groundwater MoRI
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Valley District/West V....,/Goodlidt/aty tii!WtD/aty of Colton
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Vlilley District/West V..,/Goodrfdt/0/ly of Rialto/City of Colton
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Valey Disbict/West Valley/Goodttch/City ol.u.!to/Oty of Colton
Preclc:IM Model Runs ol ~on Basin 6irculdwater Model
Predicted Perchlorate CoiKlentrations for Well Miro-Z
2015-zoso
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1-o-15 GEOSCIENCE Support S.rvlcM, IIIC.
Vdey Dlstric:t/West V .. ley/Goodrkh/City of Rialto/City of Colton
Pncllctive Model Runs of Rlll~ton 8asln Groundwllter Model
100
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Valley Discrict/West V.Uey/Goodridi/City ~Rillito/City of Colton
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90
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V8leJ District/West Valley/Goodrich/City of RWlo/City of Coltoa
Precldlft Model RIIM of~ Basin Graunclwlrter Model
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2015-2050
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V•hy DistrlctJWest "*'t/Goo41kh/Oty of RiMto/Oty of Colton
Predictive Model Runs of Rlafto.Colton Basin Grounclw•ter Model
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200
100
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l·Dec-15 GEOSCIENCE Support Senllces, Inc.
Vllley District/West V...,/Goo4kidi/City af IIWto/City af Colton
Pnclcllwe Model Runs of Jllalto.Colton Basin Q -oclwlter Model
Pred icted Perchlorate Concentrations for Well M·lS
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2030 2035 2040 2045 2050
1-DIIo-15 GEOSCIENCE Support S.rvlcer, Inc.
Valey Dlltrtc:t/West Vf/16t/Go«Jndt/f1f<y of Rialto/f1f<y of Colton
Pl'ecllctlve Model Runs of Rbllto-Calton Basin Groundwatef Model
1,000
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2015-2050
900
800
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200
100
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GEOSCIENCE SUpport Services, Inc.
Valley Dlsltkt/West Valley/Goodrkh/City of !liMo/City of Coltoll
Pr-*dwe Model Runs ot Rbolto-Colton Basin 6foundweter Model
Predicted Perchlorate Concentrations for Well M-2 Zone 1
2015-ZOSO
1
•
000
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100 ---·---·····-.. -·········-··-··-----·-~7~ -------·------------
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2015 2020 2025 2030 2035 2040 2045 2050
1..U..15 GEOSCIENQ SUpport Services. II!£.
Valey Discrlct/West V*'t/Goo6ttdi/City of Rialto/City of Cokon
Pn!dlctlw Modelllun5 ol R~on Basin 6nlundonter Model
1,000
900
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2015-2050
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.·!7n
800
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1~15 G!OSCIENCE SUpport Sen11ces, Inc.
Valey District/West V811ey/Gooclrich/City d IIWID/City of Cokcn
Prellktlwo! Model Runs of Ill~ lasla finMidw.C.r Model
Predicted Perchlorate Concentrations for Well M-Z Zone 3 throuah 7
zo1s-zaso
~OOO rr====~==M==ri=o=2={M=a=s=sAd==d=e=d)=1------------------------------------,-/~.~,---rSJ~·~,~.'~~-~,~.~-~-.--~
900 ~nario 4 (Mass Added) , -, · · '· ~
.,...J -,,
-
800 +-------------·-------------------0
700 t-··-----·-----------------·---------------r============~·---
Model Layer 6
f--------------·--------------------------------------·--·---------------------
500 -----------------·--------------·----------------------------
400 -.. ------···-----------
300 f--·------------·----·---------------------------·---------------------
200
100 -------·----------·-------· -------------------------
o t=====~~~~====~~~~==~========~======a.T--------~~-----··--
2015 2020 2025 2030 2035 2040 2045 2050
GEOSQENCIE Support Servlms,.lnc.
V...., Distrid/West V..,/Goodridt/Cill.y of Rialto/City of Colton
Predictive Model Runs of RJalto.OIIIDn Basin Groundwater Model
100
90
-Scenario 2 (Mass Added)
Scenario 4 (Mass Added)
Predicted Perchlorate Concentrations for Well M-4$
2015-2050
C1 ~"" o~ "' .·
..
80 ~
70 ...
! c 60 0
I Model Layer 5 I
'!
1:
:!: c 50
8 ..
!
.!! 40
~ :.
30
20
10
r:-:·-~
\ \\
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0
·--.---·---~ .. , -·-r -
2015 2020 2025 2030 2035 2040 2045 2050
1-Dec>lS
V .. ey l*tric:t/West V*'t/GooOtldo/Oty of RaltD/Oty of Colton
Precllctlw Model Runs of Rillito-Colton llasih Groundwlltet Model
Predicted Perchlorate Concentrations for Well M-40
2015-2050
loo rr==============~----------------------------~--~~"~---r ---~[?~, 90
--Scenario 2 (Mass Added)
Scenario 4 (Mass Add~)
80 +-------------·--------····---··-------·---·--· --~
70 +---·-------
Model L..yer &
60 ---·-·-·---· .. -----------··---·-···--··--··--·------------------·--
so ---·-------------·---·--···---···--····---···-----·-·-·--------·-·--·--·----·-
: ~·-··_-_-_-_-____ "\-_ __:-_.--~~---------_·-_--_-_· __ ·-~----_··_--_--_-_-_ -_-_ -_ -_-_-_· _-_-·_·-~~-·-__ ._-_-·_-_·_· ·_-_-·_-_--_-_·--·--·--!
\
10 -·····-------------·------···---------···----------------------
0 +--------~--------r--~~---,---------~--------~·
2015 2020 2025 2030 2035 2040 2045 2050
'TI
ii c
iii
~
GEOSCENCE Support SeNices, Inc.
v.-.y District/West V...,/Goodrich/Oty of Rillito/City of ca1ton
Pmllctlve Model Runt of Rialto-Colton Blosln GroundwMer Model
Predicted Perchlorate Concentrations for Well M·S Zone 1
2015-2050
-! c
0
'!
!
8 ~
!I
I!
.i ~
t! t.
100
-Scenario 2 (Mass Added)
90
80
70
60
Scenario 4 (Mass Added) ~,
' \. I
I
I
so ;---\
40 ---~ 30
20
10
f-0
2015
/
' 2020
I
I ~
D , ~
2025 2030
. ~p~,
--~.~ ·~
I Model Layer 3 I
.. , -' , -
2035 2040 2045 2050
GEOSCIENC! Support S.Mcu, In'-
v • .., District/West V•..,/&oodtidt/Oty d IIIMta/City d Coltan
Pr..tlctlwe Madellt\lns d .wto-coltan lasltiGftxlndwllter Model
Predicted Perchlorate Concentrations for Well M-5 Zone Z
2015-ZOSO
100 ~================~------------------------------~--~~~------. _____ -IT,~
80 f--·-------------·---~ ',
--Scenario 2 (Mass Added)
90 Scenario 4 (Mass Added)
l 70
--. -·· .. -T·--· -~odel -~yer ~ ··---
j 60 +----------------------------------------------------------~================::~ I ~ ~ ~---------------·-----------------------------------------------------------------1
B
I 40 -----------------·-·-·--·---··-··-··-------··-----·----··--·------·-----·
.1:
1:! :.
\
'
30 -----·-----------------·-------------------·-----------------------t
~ +--.,~----------------------------------------·--------1
10 ---------·-----------·---· ____ _,_ --------------·---------·-·---------
0 +------~~---......... -
2015 2020 2025 2030 2035 2040 2045 2050
1..0.0.15 GEOSOENCE SUpport Sei'VIc:s, lnr..
V...., Distritt/Wert V.hy/6ooclrich/City of Rialto/City of Colton
PrHktlwe Model Runs of ~on Basin 6rowldwllter Model
Predicted Pe~hlorate Concentrations for Well M-5 Zone 3 t hrou1h 7
2015 -2050
100
90
. ~~ -Scenario 2 (Mass Added) .· cr~' .
Scenario 4 (Mass Added) r '-.
80
. "' . ~· 0
"""' 70 ...
l I Model Layer 6 I
r! 60 .2
1!
~ Pl so c
8 ..
! 40 0
:2
1:!
.f
30
20
10 f--\.
' ~.
0 . ' . ' 2015 2020 2025 2030 2035 2040 2045 2050
1-Deo-15
Valley District/West v.a.,/Goodrictt/aty ~ llalto/City of Colton
Precllc:tlwe Mocld Rains ~ IIWtD-Colton Buln &ro.lclwatet Model
Predicted Perchlorate Concentrations for Well M-6 Zone 1
2015-2050
1,000 ~r========:;-----------------:r----;:::::::;-,--:----, --·tf ·· -Scenario 2 (Mass Added)
-~
900 ... ··-·-----~--------------~
Scenario 4 (Mass Added)
800 -i-------------···-···-----
700 -------------------------.=======::::;---1
Model Layer 3
{ ~ ----·-----. ---·--
)
i
i
500 -·---·-----··-··------·--------· -· -·------···-·--·-------------·--·--·--····-------·-
400 -······ .. ---· ...... -...
300 ·-----------·----------·--------·----·---·------· ---------
200 +------------------------------------------~
100 .. --
0
2015
.-
2020
r-
2025 2030 2035 2040 2045 2050
.,
a· c ;
t;
GEOSCIENCE SupPOrt Services, Inc.
V811ey Dlstrlct/Wnt Vfl}ey/Goodrtdl/Qy of 11181to/City of Colton
Predictive Model Runs of Rialto-Colton lasln Groundwater Model
Predicted Perchlorate Concentrations for Well M-6 Zone 2 through 3
2015-2050
1,000
900
800
--Scenario 2 (Mass Added) IT·~~ -Scenario 4 (Mass Added) ..------------------'" ~"" .J
' 0 ' ,.
' " ' 700
..... l ,; 600 t i s 500
I Model Layer 5 I
~ ..2 400
~
i
300
200
100
0
/~'\. /~ -------· --' ' 2015 2020 2025 2030 2035 2040 2045 2050
1-D~15 GEOSCIENCE Support Services, Int.
VdiiY Dlltrlct/West V•ley/Goodrich/City of Rialto/City of Colton
PI'Rktlw Mode l Runs flllllalto-Colton Basin Groundwllter MocW
l
Predicted Perchlo...te Concentrations for Well M-6 Zone 4 throulh 7
ZOlS -2050
100 r,:= _=_==Sc=en==ar=io=2=(=M=a=ss=Ad=d=ed=)~-------------------' ' ~ '· '~
90 Scenario 4 (Mass Added) __ . -l r . '· "' " ~ " ,.
80 +----------------------""'\ Q
~
70 ··-··---·-···-----·--·
Model Layer 6 J
f 60
8 50 ~---------------------------------------------------------------~ a
i
0 40 1------· --------------·--~~-----------t :
30 ---·----------·------·---·------------------------------------·------~
: ~~----------7-~-----~~~---'--~
0 ~-------.-==~~~--~-~---------~-------~-~-~--~----~
2015 2020 2025 2030 2035 2040 2045 2050
i c
i
t
GEOSCIENCE Support Servl-,lnc.
V..., Plstrict,/West V....,/Goolttldt/Oty of Rillito/City of Collon
Predictive Model RIIM of RJalto.Colton Basin Groundwater Mod.~
1,000
--scenario 2 (Mass Added)
Predicted Perchlorate Concentrations for Well N-135
2015 -2050
900
800
r ~~ Scenario 4 (Mass Added)
~
700
l g 600
~ .. c •
I Model Layer 3 I
... c
8
500
I
.2 400
'5 ... • Go
300
200
100
0
/"'....
I -,,_
_...--.. -----I -.
2015 2020 2025 2030 2035 2040 2045 2050
1-o.-15 GEOSCENC£ Support Senlk:es, Inc.
Vai'-Y District/West vaney/Goodrich/City of Rlalto/aty of Colton
Pnddlw Model Runs of Rlalto-Coltolt llasin Groundwater Model
Predicted Perchlorate Concentrations for Well N-13D
2015-ZOSO
~000 ~============~~----------------------------~--~~~----~ L-~~-=-~_a_r:_:_::_:~_s_:_:_:_d_~_, --···--······ ·····-------------_ cY ':~" 900
800 ~-----------~--------------------~ 0
' ',
" 700 ~--------·---------------------·-----·----;::=========;-1
Model Layer 6
-~~~~-----
500 ---------·· ··-·--· -··-·----·----------·-----·----
400 ~------------·-·-·----·---------~ ~--~------
300 +--------------------------·--·-· --·--------··-------·--------
200 --------------------------·-----_____ ,_ ------·----·---------
100 ·-------· ---·------------·--------·----------------· ___ , __________ ·--------
0
2015
...
2020
...
2025 2030 2035 2040 2045 2050
GEOSCIOia Suppart Services, Inc.
Valey District/West V*'I/Goo6tktl/ctty of Rialto/City of Colton
~Model Runs of Rialto-Coltott 8asln Gl~ Model
100
Predicted Perchlorate Concentrations for Well N-188
2015-2050
n
90
--Scenario 2 (Mass Added) ~ Scenario 4 (Mass Added) , u~ .,
"" 80 '"-. 0 ~
70
l r= 60 0
-----
I I Model Layer 3
i
~ c • .. c 50
0 u
!
.2 40
~ • 0..
30
20
10 L'. \
0 I r ' I I
2015 2020 2025 2030 2035 2040 2045 2050
1-Deo-15 GEOSCIENCE Support 5eMces, Inc.
Valey Dl5trlct/West V*r/Goo6tkto/CJty oflliMo/City of Colton
l'ncllctlft Model Runs oflillllo-CDiton Basin CinNndw1ter Model
Predicted Perchlorate Concentrations for Well N-18C-1
2015-2050
100 ~==============~~------------------------------~--~~~------.
.' . ~~ '"-------S<:enario 2 (Mass Added)
___ , LJ ,, ··"""
BO ,--------------------------------· --------~
90 Scenario 4 (Mass Added)
"-~ 70 -------M-od~l-~y~r~-r··-
5 60 +-------------------------------------~==============~~ i ~ +-----------------------------------------------------------------~
I 40 ----· ---------·-· ·-------------· -----... ··----------....... -----------
~ +----------------
20 ----~-----------------------------·------------------------------------------i
10 r--__,_~---------------------------------------------------------------!
0 +------r----=~----
2015 2020 2025 2030 2035 2040 2045 2050
GEOSCIENCE Suppart S..W.. Inc.
v ... , District/Wat Vaky/Gooflrtdi/CJty of Rialto/City of Colton
Predictive Modellluns of lllalto-co!ton Basin Groundwllter Model
100
90
--Scenario 2 (Mass Added)
Scenario 4 (Mass Added)
Predicted Perchlorate Concentrations for Well N-18C·2
2015·2050
'" cf~ ""'. . . " .
80 ~0
~
70
~
I c 60 .2
! 1: r: 50 c:
0 u
I Model Layer 6 I
~ ..
i II a.
40
30
20
10
-\
~.
--.... _
0 -I I . , I
2015 2020 2025 2030 2035 2040 2045 2050
1-Deo-15 GEOSOENCE SUpport Services, Int.
Valley Dlslrict/West V.U.V/&oodrich/City d R;.lto/Cily d Colt011
~ Model Runs d IIIMto<olton Basin &rounchftter Model
l
f <:
Predicted Pe rchlorate Concentrations for Well N-ZO Zone 1 throu1h 2
2015-2050
lOO tr================;---------------------------------~--~~~~----~ tl . """-.:.... ---cr-, , ~
~··· ' ""-
--Scenario 2 (Mass Addedl
90 Scenario 4 (Mass Addedl
80 ;------·-----------------------------
70 -t-----------------------·---
Model Layer 3
60 r-------------~-------
:: 50 +------8 -------·----·-·--·----·-·--------·-----·----·-·--··--------i
I
.5!
~ • A.
40 ···------· -··--. ····------------·······-~
30 --·--··
20 i---------------------------------------------------------------------------~
10 -··-·--
0
2015 2020 2025 2030 2035 2040 2045 2050
i c
i
Ul
0
GEOSCIENCE Support S.rviEM,IM.
Veley District/West Veley/Goo6rk'lt/Oty of Rl81to/City of Colton
Predktlve Model Rurw al RWio-Colton lasln Groundwater Model
Predicted Perchlorate Con centrations for Well N-20 Zone 3
2015 -2050
...
l
t!
.2
i 8 c
8 ..
! 0
l! ~
l
100
90
80
70
60
so
40
30
20
10
0
2015
1-Dec-15
-Scenario 2 (Mass Added)
Scenario 4 (Mass Added) r--·---··
~, -. -•
2020 2025 2030
IT'~, _, ___
~ ()
' "' """,
I Model Layer 5 I
·-----
-' -. -.--'I
2035 2040 20 45 2050
GEOSCI ENCE SUpport Services, Inc.
Vdey District/West Vdlly/&oodrlch/City Dll!lalto/City of Colton
Precllctlve Model Runs Dllll8ltD-Colton Basin ~er Model
Predicted Perchlorate Concentrations for Well N-ZO Zone 4 throu1h 6
Z015· ZOSO
100 ~================.-------------------------------~--~~"----~ ~--~ c-1 ~ --Scenario 2 (Mass Added)
90 Scenario 4 (Mass Added)
80 r------------------------~~
70 --------------------------------------r=========;;-1
Model Layer 6
1---------··---· ----------··· --···----··--··--· -------····-·--·---------·------·---------------
50 r----------------------------------------------------------
------------------
30 ---------·-----------------------------·-·-----------· ------------------·-
20 +------------------------------------------------------------;
10 ----·--·------------·---------------------------·-----------------
0 -
2015 2020 2025
.--
2030 2035 2040 2045 2050
GEOSCIENCE Suppllft Senlbl, Inc.
Vllley Dlstrkt/West V*'t/Goodridt/City of Rialto/City ol Colton
Precllcthe Model Runs olllalto-Cofton a.ln ~Model
100
--Scenario 2 (Mass Added)
90 Scenario 4 (Mass Added)
80
70 ...
l c
0 '!
60
c .. .. c:
8
50
i
.!! 40
J:. ~ ..
A.
30
20
10
0 -., -
2015 2020
1-0ec-15
Predicted Perchlorate Concentrations for Well F-32
2015-2050
-. -~ ,--' -'
2025 2030 2035 2040
D'J··,~
~ ' ,
I Model Layer 3 I
-I -'
2045 2050
GEOSCIENCE SUpport Senlkes, Inc.
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FO~ MODEl lAYER 5
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wmt MASS LO.\DIN6
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(2015 to 1050)
OtD5 ,.-.
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1Dto lSyan
15to10ywrs
20toU,_D
2$to30y.ID
10tol6,ats
TABLES
GEOSCIENCE
~
Valley District/WISt Valley/Goodrich/City of Rialto/City of Colton
Predlctllll! Model Runs of the Rialto-Colton Basin Groundwmr Model
Assumptions for Predictive Model Scenarios
Model Scenario Hydrologic Period Cactus Basins Spreading Groundwater Pumping
Scenario 1
• Anticipated future production subject to the 1961
(Baseline Run 1) 1978-2013 No Decree (FWC not included)
• Lease Agreements
Scenario 2
• Anticipated f uture production subject to t he 1961
(Baseline Run 2)
1978-2013 No Decree (FWC included)
• Lease Agreements
• Varies each year depending
• Anticipated f utu re production su bject to t he 1961
Scenario 3 Decree (FWC not included)
(Project Run 1) 1978-2013 on SWP Availability • Lea se Agree me nts
• 2,670 AFY (Basin s 3 and 3a) • Extraction of stored SWP water
• Varies each year depending
• Anticipated future production subject to the 1961
Scenario 4 1978-2013 on SWP Availability Decree (FWC i ncluded)
(Project Run 2) • 2,670 AFY (Basins 3 and 3a)
• Lease Agreements
• Extraction of stored SWP water
1 -Dec-15 GEOSCI£NC£ Support Servk:es, lnt-
Valley District/West Valley/Gocl*ich/City of Rialto/City of Colton
Predlctlw Model Runs of the Rialto-Colton Basin Groundwater Model
Owner Well Name
City of Colton EW-1
City of Colton Rlalto-3
City of Colton Colton-15
City of Colton Colton-17
City of Colton Subtotal
Avera1e Annual Groundwater Pumpifll
City of Colton Wells for Scenario 1 and 3
Year 2015-2050
Scenario 1 Scenario 1
Model Initial Adjusted Based on
Input Model-Calculated
Water Level
[acre·ft/yr)
2,742 2,565
200 200
251 56
707 159
3 ,900 2,980
Scenario 3
Model Input Note
3,072 Emhart Lease
237 County Lease
103
290
3,701
GEOSCIENCE Support s.m-, Inc.
Valley District/West Valley/Goodrich/City of Rialto/City of Colton
Predlctlw Model Runs of the Rillito-Colton Basin Grounclwllter Model
Owner Well Name
City of Colton EW-1
City of Colton Rialto-3
City of Colton Colton-15
City of Colton Colton-17
City of Colton Subtotal
1-Dec>lS
Average Annual Groundwater Pumping
City of Colton Wells for Scenario 2 and 4
Year 2015-2050
Scenario 2 ScenarioZ
Model Initial Adjusted Based on
Model-Calculated Input Water Level
[acre-ft/yr]
2,742 2,742
200 200
251 202
707 570
3,900 3,71S
Scenario 4
Model Input Note
3,251 Emhart Le ase
237 Cou nty Lease
249
701
4,439
GEOSOENa SUpport 5eMces. Inc.
Valley District/West Valley/Goodrich/City of Rlalto/aty of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model
Owner Well Name
City of Rialto F-49A
Clty of Rialto Miro-2
City of Rialto Miro-3
City of Rialto Rialto-3
City of Rialto Rialto-5
City of Rialto Rialto-6
City of Rialto Subtotal
1-Dec.-15
Average Annual Groundwater Pumping
City of Ria Ito Wells for Scenario 1 and 3
Year 2015-2050
Scenario 1 Scenario 1
Model Initial Adjusted Based on
Model-Calculated Input Water Level
[acre-ft/yr]
1,600 1,600
0 0
112 39
1,897 1,588
757 108
0 0
4,366 3,335
Scenario 3
Model Input Note
1,897 County Lease
0 County Lease
59 County Lease
1,940 County Lease
248
0
4,145
GEOSCIENCE Support .S.rvl111s, Inc.
Valley District/West V•lley/Gooclrich/C"Ity of Rialto/City of Colton
P~lcthm Model Runs of the Rialto-Colton Basin Groundwater Model
OWner Well Name
City of Rialto F-49A
City of Ria Ito Miro-2
City of Ria Ito Miro-3
City of Rialto Rialto-3
City of Rialto Rialto-5
City of Rialto Rialto-6
City of Rialto Subtotal
1-Dec-lS
Average Annual Groundwater Pumping
City of Rialto Wells for Scenario 2 and 4
Year 2015-2050
Scenario 2 Scenario 2
Model Initial Adjusted Based on
Model-Calculated Input Water level
[acre-ft/yr]
1,600 1,600
0 0
112 96
1,897 1,888
757 575
0 0
4,366 4,159
Scenario4
Model Input
Note
1,897 County Lease
0 County Lease
116 County Lease
2,240 County Lease
715
0
4,969
GEOSCIENCE Support Services, Inc.
Valley District/West V811ey/Goodrich/City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin 6roundwater Model
Averace Annual Groundwater Pumping
West Valley Water Dlstrla Wells for Scenario 1 and 3
Year 2015-2050
Scenario 1 Scenario 1 Scenario3
Model Initial Adjusted Based on
Owner Well Name Model-calculated Model Input Input Water Level
[acre-ft/yrJ
WVWD Rialto-6 3,065 3,065 3,634
WVWD WVWD-10 0 0 0
WVWD WVWD-11 0 0 0
WVWD WVWD-16 627 222 338
WVWD WVWD-17 0 0 0
WVWD WVWD-24 351 124 189
WVWD WVWD-33 1,062 375 572
WVWD WVWD-54 1,000 1,000 1,186
West Valley Water District Subtotal 6,104 4,786 5,918
l·Dec:-15
Note
UTC lease
GEOSCENCE Support SIII'VIces, Inc.
Valey Di$trict/West Valley/Goodrich/City of Rialto/City of Colton
Predictive Model Runs of the R181to-Colton Basin Grot~ndwater Model
Average Annual Groundwater Pumping
West Valley Water District Wells for Scenario 2 and 4
Year 2015·2050
Scenario 2 Scenario Z Scenario 4
Adjusted Based on
Owner Well Name Modellnitiallnput Model-Calculated Model Input
Water Level
[acre-ft/yr]
WVWD Ri.alto-6 3,065 3,065 3,634
WVWD WVWD-10 0 0 0
WVWD WVWD-11 0 0 0
WVWD WVWD-16 627 538 654
wvwo WVWD-17 0 0 0
wvwo WVWD-24 351 301 366
wvwo WVWD-33 1,062 911 1,108
WVWD WVWD-54 1,000 1,000 1,186
West Valley Water District Subtotal 6,104 5,814 6,947
1-Dec-15
Note
UTCLease
GEOSCIENCE SUpport Services, Inc.
Vall~y District/West Va lle y/Goodrich/City of Rialto/City of Colton
Predld lw Model Runs of t he Rillito-Colton Basin Groundwat~r Model
Averap Annual Groundwater Pumping
Fontana Water Company Wells for Scenario 1 and 3
Year 2015·2050
Scenario 1 Scenario 1 Scenario3
Adjusted Based on
Owner Well Name Modellnltlallnput Model-calculated Model Input
Water level
[acre-ft/yr]
FWC F13A 1,542 1,542 1,542
FWC F13B 1,718 1,718 1,718
FWC F15A 1,089 1,089 1,089
FWC F49A 1 ,086 1,086 1,086
FWC F10B 1 ,971 1,971 1,971
FWC FlOC 1,795 1,795 1,795
FWC F10D 216 216 216
Fontana Water Company Subtotal 9,417 9,417 9,417
Note
GEOSCIENCE Support s.rvlats, Inc.
Valley District/West Velley/Gooclrkii/City of ~Ito/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Grounctw.ter Model
Average Annual Groundwater Pumping
Fontana Water Company Wells for Scenario 2 and 4
Year 2015-2050
Scenario 2 Scenario l Scenario 4
Adjusted Based on
Owner Well Name Modellnitiallnput Model-Calculated Model Input
Water Level
[acre-ft/yr]
FWC F13A 151 144 144
FWC F13B 168 160 160
FWC F15A 106 101 101
FWC F49A 106 101 101
FWC F10B 193 183 183
FWC FlOC 175 167 167
FWC FlOD 21 20 20
Fontana Water Company Subtotal 920 876 876
1-Dec-15
Note
GEOSOENC£ Support SeMces, Inc.
Valley District/West Valley/Goodrich/City of Rialto/aty of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwaur Model
Average Annual Groundwater Pumpins
Outside of 1961 Decree Area for Scenario 1 and 3
Year 2015-2050
Scenario 1 Scenario 1 Scenarlo3
Adjusted Based on
Owner Well Name Model Initial Input Model-Calculated Model Input
Water Level
[acre-ft/yr]
Subtotal Regulated by 1961 Decree 23,787 20,517 23,182
City of Colton Colton-22 2,500 2,500 2,500
City of Colton Colton-23 2,500 2,500 2,500
Meeks & Daley Sperry 81 81 81 Water Company
Montetito
Memorial Park and Barton Rd 103 103 103
Mortuary
City of Riverside Johnson 4 2,700 2,700 2,700
Subtotal (Not Regulated by 1961 Decree) 7,884 7,884 7,884
Rialto-Colton Basin Total 31,671 Z8,400 31,065
Note
GEOSCENCE Support Servlca, Inc.
Valley Dlstrkt/Wut Valley/Goodrich/City of Rialto/City of Colton
Predictiw Model Runs of the Rialto-Colton Basin Groundwater Model
Average Annual Groundwater Pumping
Outside of 1961 Decree Area for Scenario 2 and 4
Year 2015·2050
ScenarloZ s~enario 2 Scenarlo4
Adjusted Based on
Owner Well Name Modellnitiallnput Model-cal~lated Model Input
Water level
[acre-ft/yr]
Subtotal Regulated by 1961 Decree 15,290 14,565 17,231
City of Colton Colton-22 2,500 2,500 2,500
City of Colton Colton-23 2,500 2,500 2,500
Meeks & Daley Sperry Water Company 81 81 81
Montecito
Memorial Park and Barton Rd 103 103 103
Mortuary
Clty of Riverside Johnson 4 2,700 2,700 2,700
Subtotal (Not Regulated by 1961 Decree) 7,884 7,884 7,884
Rialto-Colton Basin Total 23,174 22,448 25,115
1-Dec-15
Note
GEOSCIENCE Support Senrices, Inc.
V.llty Dllttkt/w.rtV.IIyf-....cW./Cftf .t Rlall.fdly _,c:.lbNI
flrellkllnModel._oP ..... III-CotlenlulnGI'MI ....... Mod•l
I WoiiNomo
Pllmpin& I~~:.::. t:::
I I
Subjo<tm ,..,.:~ Borton Rei
1961 Docree CltyofR"""'Id• John"'"• _,
~ltonllolnTotol
Annuol Groundwot" Pumplnl for 5a!narlo 1
2015·2050
Tabta12
m• we 2ou 20b 1 zou ZD>a :mJ. 10Z2 20zs ~ ~ ~ --"'!!_ _..,._ ~ zaaa :1031 ..... ...u
~ ~ C74: C74: '.74: !.74:
2,US U7ll 2,017 2,!115 I,DD5 ...... 1-"''"" 1,900 o.aez 1,701 0.577 5,470 5,314 Ut1 01110 0,115 5.1112 5152
--·2D••I•~•2Dm--~ml~m;~~~~~~~~~~1·~~~n-Bwi~M
:1.500
__M
wtmt~=1~=-,~~=w•~'~'m==tm=tm
2.700 :1.700 ~700 ~700 :.700 ,700 ~700 2.700 1.700 ~700 2.700 1,700 ~100 ,700 ,700 .700 :.700 2.700 ~700
~~~~-~~·~-~~~-~PI•~~~~~-~~~
POII,Jelof2
v.e~ey~v.•r~ot.a."-/Dtr .tc.tt. ..
,.,..._ .. _. ... _,._ ... ~ ...... 5 .. uM..n.r Mell ..
.:::. .,..,.. ---
' IAose
I ''A CouhtYLCI ..
I
I
I
"""l'lnl
W.)Ktl<l
1ti1Dec:ree:
_WO/WP
_IWC_ ........
1"'.:;~~ I .. ~.:.:::'!: .. -Rd
l!IJ1DtcrM <llyoiRIWr>lde Jolwuon4
·-~~-·
:W4 :lOSS -
20C 20C 20!1
3,0t1 1.041 ),031
ii.4U ._ &,AQO
..... 4,751 4.751
..... . .... • .. ~:!._
:zo,ao 20020 ......
11
103 103 103
,700 ~700 ~700
7,184 ·~· .....
Allllllll ,,_.ltor """"*"fo< -1
2015 -2050
.... --:1040 2041 20a
20
2 ,901 2,1SI ..... ..,.. 2.n1 .....
~'· QQ 00
..... .. ... .... .. S,lZI ..-:&.f75
..... ~ ........ <USS 4,158
..... . .... . .... ·~· f.417 .....
atMU 20,tte -11,705 10-a;zoo
., 11 .,
103 103 103 101 ""' 103
~700 :&.700 !,700 ,700 ,700 ,700
• ••• 7.114 7114 7,111! 7-.....
Table12
041 -li045 ..... 2041 ..... -:11150 AI&
""' 20C 200 200
1,103 2.U7 2.475 1,1!1 1,l01 ..... ..... .. ... ....,
!)() 00
Zt17 ..... 2.775 :&.AI 1,!51 z.zoa 1,W un a, an
4002 ,055 ~ .. .... . 4,015 ..... ..... ..... 4,780
. .... '.Al'~~ ..... '""' I,W t.417 f.411 ·~· 1&17 ...... -it 1*-Ml 17,Mt 17,asl 17,615 17,61!5 20,517
_11_ II 11
103 103 103 103 103 101 10> 10> 103
,700 1,700 2,700 ~700 !,700 :&.700 !,700 ,700 ,700
7114 7,114 , ... 4 ·-7.114 7,114 7,114 7,114 7,114
GEOSCIENCI SUp,.r11erve.. line.
v.u..~~~~.,•~flleldtt•~
JllrNid:~tM.;el._llf .... IID.C:..._._..,,......,M ... .I
:::.·. ow-: WoUNo .. -
~
1-& ....
El ffii-'""'Prnr
""'Joctto ~ suso.cn.
~
fWC-
....... ,, .... ,_by111L-.o)
tB: ~Rd SubjecttD .:=~:. 1Ml0et ... CltYof...,slde Jo""""'' .........
Annual Grau•dwllt.r PUmplnrfGr s..onorla z
wu-21150
Z1115 ZD10 ZD17 aMI 2011 mzo 2D21 211U 21121
3,17.1 !,051 1,071 1,111 1.241 ..... ,_ ,_ 1,100
U21 1,411 ...... 11,1117 -~· 4,07.1 ..__ ...... ... ...
..... ..,.. ..... .,_ _s,m 11\706 '--·-l,llN
702 7ZG n1 ""' 77Z ... -IZII IZD
'11-...... .... .. U,MZ I >2,7o• ...... 1...-u.uo .....
103 103 10> ,.,. 103 103 10!1 103 "" 1.700 2,700 C700 """ 2,700 2,700 2.700 ,700 """ . .... ..... . .... ·-..... ..... . ... . .... ··-
Poplofl
ZIIU ZDJ5 . _ll>al 21127 21121 ~ .. aGIO ZOll ,.,_ :IOU
.... ..--..-oo 1.100 .... ,_ I.IOG -1.100
~ ~ ... .. .. ~ ~ ..... .... .. .... ....,
~ ~ ...... .. .... ~ ~ ...... 4,104 1.104 U04
1211 ... ~ ... IZO --. .., IZD 1211 no
, ....... 15.110 , .... ~ UoltO ......., lu.aa li.zoo 1J,DQ ~~ . 15,210
"" 103 1<ll 103 103 """ 103 103 """ )Oil
_2.1ll<l_ 2.700 ,,.,. __l.""'. __l.""'. __l.""'. 1.700 2,700 2.700 ~700 ..... 7,114 ..... ·-..... ·-•••• >.-·-.....
___ .....,_ .. ._,..,... ......
,.. ..... Mffitl ...... ~ .... ,,_.....,~
.:::: """"' WoiiNomo Note
I
I
Dtyo
=~
QtyofRooMoSUMohl
I -... ) ......
1111 Decree
WVWD
fWCIII-1
5ub!D!oll_l_l ~--•
City of( I
I ... ) ...... .. ~onno~~:,, Banon Rd
ttfl DKN• -· .......... lbyUilD.,..I
Annual Gto~~~~dwalllr P11111plnc for SC.nerlo 2
ZOl5 ·Z050
20M -.... '"''" -•• ..... """' 20U
...... ~--..... ....,., ..... ..... ..... 1,900 uoo
...... oi,H& ... '""' ..... 4.11"" .... , ... u 1.JOI
6,10< ...... 1.-100 ""' "'"" . .-··-...... .....
1:10 120 ... no ezD !nO_ ... no 120
15,290 15,210 15.210 . 1$.210 15,:!!"_ 15,110 1l2SO ....... ~·
10J 103 ,. 1Dl 1011 ,. 103 1011 103
>,.700 2,700 2,700_ 1,70() >.700 2,700 c700 Z.700 2,700
7,104 7.-
,_
, .... , .... ,_
, .... , .... 7 ....
Pop 2 of2
Tldlle13
D4S ..... 2D4S -1007 -Jbet 2llSO Aw&
..... ... .. ,.... J,755 .... 1 ~-S.21Z J.u• 1,715
.... ... .. 4,M7 4.»A ..... . ... , ..... 1.511 ......
..... &,100 f,07S 5.111 $.MJ ..... ... ... _ -~· ......
I2D . .., 11.4 ... ... ... ,.. , .. .,.
15,110 u.:oo 15210 ... .,.. 1!1,114 ...... .... " 12,J71 1(.1115
,. 10> ,. 103 103 '"' ,. 103 103
2,700 ~700 2.700 2,700 C700 ,100 1,700 .. ,0 ,700 , .... , .... , ... , .... , .... , .... , .... , .... 1.-
8 105011'«:1 lupport ~Mc .
Valley District/West Valley/Goodrlch/aty of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model
Annual Proj ect Recharge in Cactus Basins
2015-2050
Table 14
Calendar Year Hydrologic Year Artificial Recharge
[acre-ft]
2015 1978 5,000
2016 1979 3,000
2017 1980 5,000
2018 1981 0
2019 1982 5,000
2020 1983 7,000
2021 1984 5,000
2022 1985 3,000
2023 1986 3,000
2024 1987 0
2025 1988 0
2026 1989 3,000
2027 1990 0
2028 1991 0
2029 1992 0
2030 1993 3,000
2031 1994 0
2032 1995 3,000
2033 1996 3,000
2034 1997 5,000
2035 1998 5,000
2036 1999 3,000
2037 2000 3,000
2038 2001 0
2039 2002 3,000
2040 2003 3,000
2041 2004 0
2042 2005 5,000
2043 2006 7,000
2044 2007 5,000
2045 2008 3,000
2046 2009 3,000
2047 2010 0
2048 2011 0
2049 2012 3,000
2050 2013 0
Average 2,667
1-Dec-15 GEOSCIENCE Support Services, Inc.
¥111tor0Wrkt/W•.Cv.ity~-~.,c..M!M
.,..,... .. Moii ...... ., .. ~....,. .......... -Meftl
WoiiNomo
CltyofColton
"'
otyof._ ... _
I
I
I otyof _____ _
-~lw1111Do
atyofl
,~ ... .,.,..,
Annuli Groundwater Puropl,. ftJr S..norlo 3
2015 ·10!0
21)15 .... 2017 .... 2018 -211t1 2DU 21120 ..... ..... 1,51!
Table 15
U21 4,240 4,1117 1,215 U05 5,7t5 5 -o71 !,US 5,Z77 4,3!0 4,1AO 0,120 S Ul 5,m U19 HQ 1,575 4,415 4,A42
1,041 1, 09 c 348 D9 l,OOO l.OOO 00 ,200 1; 09
1,7c;. S,lll7 11.n1 4,5C 871! 1,111 7,KI 7J.S7 7,s7a ...... 5,1M ._.,. 5-5,l&& 5,051 ~7 4,1197 1,255 11.201
1,017 1,017 O,A17 I,A17 t,A17 9,A17 9,017 I,A17 1,4&7 9-417 O,A17 91A17 I 417 I,A17 O,o17 9,011 l,o17 l,o17 S,o17
~1M~1~~~~1~WJ~1~~1~1~1M~1~~1M
,100 1,100 '1,100 1,100 ~100 '1,100 2,700 ,100 ,700 2,100 1,700 2,700 Z.700 .700 2,700 2,700 Z,100 ,,.. Z,700
v.a., Dktltc:tiW•atv.llq,._.JM/!Otf.tRirtfto.aat""C.....
Prtlkt~tM .... IIIII• ..... ~ ............. tMaiW
::.::. awn.r Wei--
Annual Graun-Pulllpi"Cfor Sc.lariDI
J015-2050
-zoos "'"" lllln zoas -......, "'" ""'
Tllble16
.... 2044 -..... 2017 ---"""
..,. Ito o
OlYoiiOII00-1 I,IQ 4.t21 4,111 Ul7 I,US .... ~· f,044 4,414 5,041 4,N1 .... 1,515 2,150 ~I ._ t.PI 4_S45 ~m•• ~~~~~~~~II~~~~~~~~~~~~~~~~~~~~~~~~:!~~~~~~~~~~~~ ... ,. ....
1t61Dooroo
WVW1l-._,.. .,.., un .,_ ....,. >.n• ..... 4.2U ua 7pos 1.110 ·~ ....., 4.1115 4,105 ...,. ... 5,11a
1,411 .,.., .,..7 ••u M17 t.417 11,411 .,..7 .,.., 1,417 1,417 .,.., o.u1 .,.., 1,417 1,417 o,.u1 0,411
~-u•••-~•••-~m~-~B~~~n-~~··~a~~m
~~·
~~1oJ~1001~~•••-w•~~1~,~~Witmtm
:voo 2,700 2.700 2,700 1,700 2.700 >.700 2,700 2,1'00 2,700 2,700 2,700 2,700 2.700 2.700 2,700_ ~700 2,700
~~~·~~·~~~·-~~M~~~~~7M•~~
Pop2of2
v.a.r~v...y~}ttlr-IIWki/DtJflilc:.e..
,.......,.~---~ ... ..........._~
:.:.'! WoiiNoftiO
Qlyol'
~ .. ~i-1
Pwnpln&
Subject to
11110tc:r44 WI/
FWC.SU-1
-I (Jtopatod I ,,..., .,.._, =-Slt~t· M:::=.,. ··-·d au..._
City of~ -· -I ,.,a.,.-..)
Rlo_O .... Totol
Annualliroundw.ter Punoplna for Sr:enariD 4
2015 -2050
:1015 2011 211117 1011 21119 211ZO :m1 :IOU .... 21124
ua .... _. S,tU "'" 5,507 ..... 4.714 4,714 ......
...... .. ... 4"1 U07 5115 ..... UIS -s.rn 5,177 ._ ...
'"i 1,050 4,141 ..... 7,111 ...... ..... 7,rll 1,m ..,_ ..
10:1 7211 717 711 1n ... 1211 I :Ill "" 1211
16,045 14.tla 17-015 1Z,2112 17,701 2UI1 -· ...... ...... 15-l90
103 103 ••• "" ... '"' ... 101 ... 103
2,100 ,100 """ ,100 ,100 2,700 Z,100 ,100 ,700 ,700 ..... 7.114 ..... _7._-, .... 7.114 ·~ ~ 7,114 .....
TMN111
.... 2021 21027 ...... 21129 211130 :11111 """' 211Si
._ ... 4.714 J,JDO ...... ..... 4,714 ...... 4_.710 4710
u " s.m .... _ "'"'" "'"" s,m .... s,m 5Z77
4,UM 7,1l11 IJ-100 1,100 . .-7,171 .,~ .. 7,171 7,171
... '"' ... tzll ... ... ... flO no
'5,2!10_ ...... lS.UO ...... 15,200 11,210 IS,ZfO 10,2!10 .. _....,_
LlOO
105 103 10i 101 "" 101 , .. ••• 103
~100 2.'100 ~100 2,100 Z,100 2.100 2,700 2,100 2.XJO
7,114 ..... _7_ 1-414 ..... ..... ~4 7,114 ~
Vei...,Oiittrkt,fW..tV.~_, .. ._IIIII/OIJ.,~
""kWIMW ... _ _, .. ~ • ....._.,_,_.Mocftl
= --!W.l. ,.,...,, ....
~
~
I
I'Um~
Subject to
1JI1Doc,_
PW<;-
·-(loaPI-.1 ... Uf1Docne) -Sub;.ctto .. ::.:~"!: .. .. .......
1J51DK,_ John..,• , ...... )
lllofto.ClollonloolnTOIII
-s.&96
.....
.. _
....
.... -
,.,.
_>.:roo ·-
..,.. .... ... .... 1010 -.....
. .... _ ..... ... .... ....,. <lo7k 4.714
...... 5,277 1,2)7 4,110 ~m 5,177
165
.. ... 7,171 7,/RI ....... ..... .171
... ... .. "" •• ... -U,ttO Sl,aiD ~ -U2t0
.,
103 101 -'"' 10> ""' 2.71>0 2,700 2.700 2.700 voo "00 ..... . .... ..... ..... ··-.....
Pace 2 of2
3041 -ou ZD44 ............. ---Ava
,74: ., ,078 3,696 1,015 ,742 3,2SJ
...... ..... 5,100 ..... ~ 4,170 UIU .... ,. " ... 1,155 .....
., ... ...... . ..... ..... r.ut S,1ZS ... 1,127 "sao ..-.....
55
..... ·-1,071 ..... -·-7155 ua ..... Llt7 .... 5,147
t:IO ... ... .... !M ... ... .... .,. -m
n . .aa -ZJ.DD -u,aJ4 177111 11.-~~,~. u,au 1Z,I7l n .zn
103 103 103 103 ,.. 103 '"' "" 103 103 103
""" ~-"00 !,71>0 2,JOO 2.7()0_ ,700 .700 ,700 ~-~700 ·-..... . .... . .•. ·-7,114 ··-..... ..... ·-7,114
APPENDICES
GEOSCIENCE
-~~--~
'v
APPENDIXA1
GEOSCIENCE's Responses to UTC's 21-Sep-15 Comments
on the Draft Predictive Model Runs TM
GEOSCIENCE
~
Valley District/West Valley/Goodrich/City of Rialto/City of Colton
Predictive Model Runs ofthe Rialto-Colton Basin Groundwater Model Appendix A1
1.
2.
3.
4.
5.
1-Dec-15
GEOSCIENCE'S RESPONSES TO UTC'S 21-SEP-15 COMMENTS
ON THE DRAFT PREDICTIVE MODEL RUNS TM
UTC's Comments GEOSCIENCE's Responses
For each i ndividual Scenario, wer e singl e
pumping rates used for each w ell for the 2015 Variable pumping rates were used during the
-2050 period or did the pumping rates 2015-2050 period. Tables 12, 13, 15 and 16 were
change from year to year based on projected added in the Final TM showing annual pumping
water levels? Additionally, If annual pumping amounts for each individual well under each
rates were varied, can tables be included in Scenario .
the report showing the pumping rates.
Is the annual artificial recharge data shown in The annual recharge shown on Figure 7 is
Figure 7 actually historic data or is it data that assumed based the hydrology of the p redictive
wa s calculated; and was the volume of period. The recharge r ates in Scenarios 3 and 4
artificial recharge used in Scenarios 3 and 4 were varied from year to year during the 2015-
varied from year to year. If recharge was 2050 period due to the variation of hydrology.
varied, can tables be included In the report Table 14 was added in the Final TM showing
showing recharge for each year. annual project recharge amounts.
Please further explain the underlying concepts · In the calibration model, there is an add itional
behind the "Wet Years Recharge at cactus recharge of 57,000 ac re-ft at cactus Basin du ring
Basin .. that's shown on Figure 12. It appears the period of Oct 1982 through Mar 1987 to
that the volume of assumed recharge is based account for the additional recharge in very wet
on data contained in Figure 6, but this source years. This component was included in the areal
of recharge is not clearly explained and recharge in the Final Calibration TM. However, It
doesn't appear to have been considered in the was separated in the Draft Predictive Model Runs
Initial model calibration (see Figure 73 in the TM. In order to keep the terms consistent, Figure
Flow and Solute Transport Model calibration 12 was revised in the Fi nal Predictive Model Runs
Technical Memorandum). TM .
The text states that a percentage of the total In Scenarios 3 and 4, 100% of the recharged
volume recharged was apportioned as water was pumped o ut at certain wells regardless
potential pumpage at certain wells. Was this of predicted water levels and comparison to the
done regardless of predicted water levels and 1961 Decree. This point was further clarified in
comparison to the 1961 decree? Section 2.2.
How does the additional perchlorate mass
loading approach used in the model account The same amount of perchlorate mass loading
for the anticipated reduction i n vadose zone was assumed for each event to evaluate the
perchlorate mass over t i me? In other words, worst case of the contamination. This point was
is the amount of mass loading assumed to be further clarified in Section 2.4.
the same for each mas s loading event?
Al-1
GEOSCIENCE
~
Valley District/West Valley/Goodrich/City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model Appendix A1
6.
7.
8 .
9 .
1-Dec-15
GEOSCIENCE'S RESPONSES TO UTC'S 21-SEP-15 COMMENTS
ON THE DRAFT PREDICTIVE MODEL RUNS TM
UTC's Comments GEOSCIENCE's Responses
As assumed, the pumpage for Well EW-1 would
Why is a reduction in pumping shown for Well not be reduced until the pumpages for Wells
EW-1 rather than Colton 15 or Colton 17 Colton 15 and Colton 17 are reduced to zero.
under Scenario 1 (Adjusted Based on Model-Table 2 only shows the average annual pumping
Calculated Water level)? Is this consistent for the entire predictive period. Table 12 was
with water rights agreements between Emhart added showing the pumpage for each indivi dual
and the City of Colton? year and the pumpages for each well are
consistent with the assumptions.
Due to uncertainty of the future pumping, on the
23-Jul-15 model workshop, the group decided to
The pumping rate shown for EW-1 under pump out all the project recharge at Cactus
Scenario 4 (3,251 acre-ft/year) exceeds what Basins in the project scenarios using Colton,
Rialto, and WVWD wells within the 1961 Decree we understand to be the water rights boundary. This additional amount of pumping conveyed from the City of Colton to Emhart.
The pumping rate should be capped at an will be distributed proportionally to Individual
amount equal to the conveyed water rights. wells based on the Pumping Assumption Table
for Scenario 1 co lumn 2 regardless whether it is a
remediation well or not (see 23 -Jul-15 Model
Workshop Minutes Section 4 last bullet).
The pumping rate shown for Rialto-6 under
Scenarios 3 and 4 (3,634 acre-ft/year) exceeds
the currently available groundwater treatment See the response to comment No. 7. capacity at this location. The pumping r ate
should be capped at a maximum of 3,065 acre-
ft/year under all scenarios.
We would suggest using consistent
nomenclature for the different Scenarios
throughout the text, tables and figures . For This comment was incorporated In the Final TM . example, only use Scenarios 1, 2, 3, and 4
rather than also using Project 1 and 2 and
Baseline 1 and 2.
Al-2
GEOSCIENCE
""'7"""
Valley District/West Valley/Goodrich/City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model Appendix A1
GEOSCIENCE'S RESPONSES TO UTC'S 21-SEP-15 COMMENTS
ON THE DRAFT PREDICTIVE MODEL RUNS TM
UTC's Comments GEOSCIENCE's Responses
10. We would recommend inclusion of additional Per this comment, GEOSCIENCE conducted
1-Dec-15
figures showing particle tracking zones to each particle tracking model ru ns for each Scena r io.
pumping well for each of the four Scenarios Results were summarized the results in t he Final
ove r the projection period . TM Section 3.4.
Al-3
GEOSCIENCE
~
APPENDIXA2
GEOSCIENCE's Responses to City of Colton's 22-Sep-15 Comments
on the Draft Predictive Model Runs TM
GEOSCIENCE
~
Valley District/West Valley/Goodrich/Oty of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model AppendixA2
1.
2.
3.
1-Dec-15
GEOSCIENCE'S RESPONSES TO CITY OF COLTON'S 22-SEP-15 COMMENTS
ON THE DRAFT PREDICTIVE MODEL RUNS TM
City of Colton's Comments GEOSCIENCE's Responses
Figures 8 and 9 show the mass loading
approach for correlating perchlorate Input to
water levels. I understand Figure 8, where GEOSCIENCE revised mass loadi ng assumptions
t he high rate of assumed mass loading and re-ran the models. The changes in mass
cor responds to a high synthesized water level. loading assumptions did not have significant
However, I do not understand why the impacts on the model results.
assumed mass loading is assigned to a period
of low synthesized water level in Figure 9.
On the bottom of page 4, the perchlorate
concentration graph for CPW-17A and B is
discussed. It is mentioned here that the
concentrations from the project 2 prediction
run are much lower than the concentrations in
the baseline 2 run. I see almost no difference Th is comment was incorporated in the Final TM
in the two curves from 2015 to 2040. After Section 3.2.
2040, the project 2 concentration curve drops
to 2/3 the value of the base line 2 curve, but it
is still well above the drinking water standard,
and at least a f actor of ten higher than it is
today.
At the bottom of page 10, and the top of page
11 the text mentions non-synthetic
perchlorate in wells Colton 15 and Colton 17.
These non-synthetic perchlorate levels are This comment was inco rporated in t he Final TM
low, in the few ug/l range. It is relevant that Section 4.0.
the predicted future higher levels In Colton
Well 15 are due to synthetic perchlorate from
the upgradient perchlorate plume .
A2 -1
GEOSCIENCE -:::v-
APPENDIXA3
GEOSCIENcE•s Responses to County/Geo-Logic Associates' 9-0ct-15 Comments
on the Draft Predictive Model Runs TM
GEOSCIENCE
~
Valley District/West Valley/Goodrich/City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model AppendlxA3
1 .
2.
3.
4.
5.
GEOSCIENCE'S RESPONSES TO COUNTY/GEO-LOGIC ASSOCIATES' 9~CT-15 COMMENTS
ON THE DRAFT PREDICTIVE MODEL RUNS TM
County/GlA's Comments on Model Inputs GEOSCIENCE's Responses
Did Valley Distri ct verify that the bas ins are The proposed Project recharge occurs during the
capabl e of holding both imported water and high dry season from April to October. This will avoi d
storm water runoff during the same "wet'' year? impacts on Flood Control's operations.
The maximum percolation rate used for Project
What assumptions are made about surface water
recharge was 1.8 ft/day. This is well below the
percolation rat e of 5.6 ft/day f rom the results of
percolation rates?
t he infiltration test conducted for t he cactus Bas i ns
1 and 2 (West Valley Water District, 2012).
Will the recharge program potentially affect Flood
See response for Comment No. 1.
Control's retention requirements?
Is it reasonable to assume that purveyors will
The primary purpose of the Project recharge is to
simultaneously increase groundwater pumping
increase the basin yield In response to declini ng
water levels in recent years . It is our opinion that i t
rates during especially wet periods when
would be reasonable to assume tha t water
consumer demands will be reduced? What is the
purveyors need to increase the yield from the ba sin
effect if there is a delay between recharge and
wit hdr awal?
to meet water demands, regardless of wet or dry
years .
At times when groundwater levels are reduced
This is a basin management i ssue . Guidelines for
below the two trigger levels identified in the
how this operates will be discussed among the
Court's 1961 Stipulated Judgment, will the
purveyors and established. For the purposes of this
purveyors be able to simultaneously Increase
study, "put and take" operation is assumed, I.e.,
pumping during that same year? Won't they need
Project recharge is recognized as a "banking
to wait for groundwater levels to r ise? Or will
practice" that allows purveyors to pump out the
recharge be recognized as a "banking practice"
recharged water shortly after basin recharge,
that will allow purveyors to pump shortly after
independen t of the 1961 Decree.
basin recharge efforts are initiated?
1-Dec-15 GEOSCIENCE
~ A3·1
Valley District/West Va lley/Goodrich/City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton Basirr Groundwater Model AppendixA3
6.
7.
1.
GEOSCIENCE'S RESPONSES TO COUNTY/GEO-LOGIC ASSOCIATES' 9-0CT-15 COMMENTS
ON THE DRAFT PREDICTIVE MODEL RUNS TM
County/GLA's Comments on Model Inputs GEOSCIENCE's Responses
Has sensitivity analysis been performed to
evaluate plume migration if some purveyors do
See response for Comment No. 5. In add it io n, per
not partidpate i n the banking program? Simi larly,
t he discussion at a previous conference call , given
have analysis been completed to evaluate plume
the unknowns of future pumping and pending
behavior if, in response to the banking program,
development of the operating rules, it was
conservatively assumed that certain recharge will
purveyor pumping deviates from historical average
occur based on the availability of SWP water.
pumping practices.
The Draft Predictive Model Runs Technical
Memorandum (TM) only lists the average annual
pumping for each individual well. In the Final TM,
Assumptions regarding the City of Rialto's pumping annual pumping for each well was shown (see Final
schedule, particularly for Rialto Well #5 are not TM Tables 12, 13, 15 and 16). In the years when
clear . Typically, Rialto Well #5 is not expected to water levels are below the second trigger level in the
pump when groundwater levels are below the 1961 Decree, Rialto 5 and Rialto 6 would be first two
second trigger in the Court's 1961 Stipulated wells to be reduced .
Judgment. Rialto pumping is also more likely to
occur at CR-3 or the Miro wells if needed for the The pumping for Rialto -3 (CR-3) is 2,297 acre-ft/yr
perchlorate remediation. and the pumping for M i ro-3 is 112 acre-ft/yr under
no restriction conditions. Pumping for M iro-2 is
assumed to be zero based on the records from 2010
t o 2014.
County/GLA's Comments on Model Outputs GEOSCIENCE's Responses
Model output should be provided that identifies
changes in perchlorate concentrations at following
The model-calculated perchlorate concentrations
wells: Production Wells:
a. Rialto 3, Miro-2, Miro-3, F-49A, F-13A, F-13B
through time for these wells were plotted and
and EW-1.
shown in the Final TM Section 3.2 . Discussions of
b. Monitoring Wells: M-1, M -2, M-4, M-5, M-6,
t he r es ults wer e added as wel l.
N-13, N-18, N-20 and F-32 .
1-Dec-15 GEOSCIENCE
-=:::y:;"'" A3-2
APPENDIXBl
Chemographs of Perchlorate Concentrations for Selected Wells
in the .Rialto-Colton Basin for Scenarios 1 and 3 without Mass Loading
GEOSCIENCE
~
Valley District/West V..,/Goodtido/City of Rialto/City d Colton
Predlclllol! Model Runs d the Rlalto-Colttln linin Groundwater Model
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v•~ev District/West Valley/Goodrldi/City of RN!Ito/aty of Colton
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EMW-OSC
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1-Dec-15 81 -18 GIOSO ENCE SUpport s.Mcles, Inc.
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Predictive Model Runs ofthe Rialto-Colton lla*l Groundwloter Model
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Pndittlve Model Runs of the RWto-Colton Basin Groundwater Model
1,000
PW·SA and PW-SB
900 -Scl!nilllo l Scenario 3
800
700
_.
!
c.' 600 .2
i ., ... 500 ~
8 ..
~
I • D.
400
3.00
200 • • •
100
0
2000 2010 2015 2020 2025
81-22
Model layer S
,.
2030 2035 2040 2045
GEOSOENCE Support Senrkes,lnc.
Valley District/West Vll!.y/Goocltlch/City of llilb/Clty of Colton
Predktlw Model Runs ofthe R~tto<olton a.sln Ground _ _. Model
PW-SC, PW-SD and PW-SE
.....
l
& ...
I!! .. c: s c:
8
j
.&. .. ... :.
1,000
900
800
700
600
500
400
300
200
100
0
2000
• Ct.l«-tvr-d
--S.Cenor10 1
•
2005 2010
--ull bt·;Uia~
2015 2020 2025
81·2.3
r
2030
Mod!!l l &yel 6
2035 2040 2045
:
1 ~· c.
;i;"
2050 ~
Valey District/West Valley/Goodrich/City of Rialto/City crf Colton
Predicti~~e Model Runs crf the Rlelto-Colton Basin Gtoundwatar Model
EMW-OlA
1,000 ~~ • Omor ~!!d --C~I Ibt i!Uon u~ ...
!>cen a rl ~> 1 St~Hitlo i " : .. 900 ~' 800 ~: ...
700
.-1 Mod~l l..iiyer '5 )
fi 600
~
i .. ~ 500
~
!
i 400
I
300
200
100 > "C
"C ..
./ = Q.
/ ;c 0 -··--.-·r-
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 Ill ....
1-Deo-15 81-24 GEOSCIENCE SUpport Servlc:es, Inc.
Valley District/West V....,/Goodrkh/C:It'{ of Rialto/City of Ct>ltan
Precictlve Model Runs of the Rialto-Colton Blosioo Groundwater Model
1,000
900
800
700 ...
l c
.2 ..
:! ~
600
fl 500 0:::
" I
Jl .c ~
400
a.
300
200
100
0 j
2000
• 0~~1/l!cl
Sceno1lo l
~005 2010
--Ca l•brnl I o n
5C'enar!_nJ
2015 2020
EMW-018
2025 2030 2035 2040
B1·25
2045
... .. \
~
1
ii
ji(
2050 ~
GEOSOENCE Support Servl-. Inc.
V*'t DIS1rlct/West va~/Gooafdt/Oty cl Rialto/City cl Colton
Pn!cllctlve Model Runs cltha R'-lto-Colton Basin Groundwater Model
1S/SW-3AS and 15/5W-3A6
1,000 r.=======================;----------r.GJ~::::::--"""""":::--1
• ObSttV!ld --CeTtb r<1 t 10n u~ .1
• _
900 --Stc-•wlo 1
800
700 ...
l Model Layer 5
j 600
e w c
fj 500 c a
!! ~
.R. -s
i
400
300
200 •
100
0 . L ~ --.--·-
2000 2005 2010 2015 2020 2025 2030 2035 2050
~
'X
~ a. ;c ·
CD -
81-26 GEOSCIENCE !MippGrt SeMces, Inc.
VIIUey District/West Valey/6oodrlch/City of Ri81to/City of Colton
PrM!ictive Model Runs of tile R~lto-Colton Basin Groundwater Model
...
l c
.S! .. I!
1!! u ..
0:::
0 u
!I I!
.S!
~ ~
Q,
1,000
900
800
700
600
500
400
300
200
100
0
2000
• Ob$etveG
--Sc.enurlo 1
2005 2010 2015
1S/SW-3A7
,.
'
Mo del Layer &
~·
,.
"&:1
1
-------------------------------------J :::J
D. ;c·
2020 2025 2030 2035 2040 2045 2050 !!
91-27 GEOSOENCE Supp011 S.rvlcat,lnc.
Valley District/West V .. ey/Gooclrldi/City of !Uito/City of Colton
Preclldiw Model Runs of tM RJMto.Colton Basin GI'Oia'ldwater Model
Rialto-6
1,000 rr===========.------------;f;:::::;;-""':;:------.::.........._:::::-~·.
• Observed --Calibration . [" . -.. -........_
--Scenario 1 Scenario 3 "-'" '', '· ,-·: ... " 900
800
700
i
c 600
j
§ 500
8 a I!
t 400 -
300
200
•
' . ' . ', ,,
', 0 . ' ~-~~···~--'\ ~ --...., •..
Model Layers 5, 6 and 7
0 ~~~----~--~----~--~~--~~~;=~~====~==~
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
loOec-15 81-28 GEOSCIENCE $utiPart SeMces, Inc:.
Valley Distri~West V*'t/Goodtrich/City of Rialto/City of Colton
Preddlw Model Ruru of tile Rialto-Colton Basin Groundwtter MocW
PW-9A, PW-9B and PW-9C
1,000 -r.========================:;-----------r.=-"""'~:-----,~::--1
--C.1llbrallm1 ----!?= I ~. ·• SCt!tr'dTio 3 J
.... ·' \
'-
Model lay er S
•
•
~ •
2010 201 5 2020 2025 2030 2035 2040 2045 2050
> -a
'tl
(I)
::J
CL );"
m
~
6.1 ·29 GEOSCIENCE Support SeNicer.lnc.
v.-.y District/West Valley/Goodrldi/Ctty a1 Rialto/City of Cotton
Pmidive Model Runs of the Rialto-colton Basin Grounclwa1er Model
PW-90, PW-9E and PW-9G
• Observed --Ca li bration
900 --scenario 1 Scenario 3
800
700 ...
l
r! GOO !
I! ~
§ 500
8
fl I!
J! 400
.1:
l •
300
200 ..
100
/ •
0
2000 2005 2010 2015 2020 2025 2030
l·Deo-15 81-30
Model layer 6
2035 2040 2045 2050
GEOSCIENCE Support Services, Inc.
V811ey District/West V•hy/Goodl1ch/City of RWiio/City of Cotton
Predctlve Model Runs of the Rialto-colton B1sin Groundwater Model
PW-10A and PW-108
l,OOO ir===.=o:b:s01:'1'fd======::_::_::_=u=llbR=t:IO:n==:::;-------------,~~. -.:::::;:------..;;::::::----,
Scen atiO 1 Sce naflo3 '--'~.: :·
900
800
700 ...
l
r!
.5I
i
600
8 c 500
8
J 400
I! :.
•
•
300
200
100
0
2000 2005 2010
~ -
2015 2020 2025 2030 2035
B1-31
~··
~ "Z--.:\
Model Lay e r S
2040 2045
l
1
i
iC
2050 ~
GEOSOENCE Support Services, Inc.
Vallrf District/West V*'t/Goodtkti/City of ... o/City of Colton
Predictive Model Runs of the Rialto-colton Basin Ground-Model
PW-lZA and PW-lZB
1,~ r;::=:=:::=:=:=:::::=:=:=:_=_=_=~:;e:l::::~::=;====~----------------------,,-~-·-~~~~,·-:·'~'·~.---.-~~=---~··~.1.
.......... ·,,
'......._ ., ' " ' ~~-~~co·:
....................... · .............. :
-...---
' \
Model LayerS
2015 2020 2025 2030 2035 2040 2045 2050
1-Dec-15 81-32 GEOSCIENCE SUpport Services, Inc.
Valey District/West Vlley/Goodrich/Clty af Ri.no/City af Colton
Predictive Model Runs afthe RWto-Colton Balli Graundwaw Model
100
10
••
EPA-MP8A through BC
0 +--------r-------,----~·~ ---.-
2000 2005 2010 2015 2020 2025 2030
B1-33
-.-
2035
-.------..---
2040 2045 2050
Vllley Dlstr1ct/West V .. '-v/Goodr1di/City of Rillito/City of Colton
Predictive Model Runs of the Rillito-Colton a.sin ~Model
EPA-MPSD and SE
~
l
i ~ I!
'E • ~
3
.!
II 15
-'= ~ :.
100
90
80
70
60
so
40
30
20
10
0
• Observed
S~n~rfO ]
••••
--C~I•b raoo11
Sc.enarlo l
~-----.-----...-----.----.-
2000 2005 2010 2015 2020
1~15 B1 -34
Model Layer 6
-.--r--.-------r-
2030 2035 2040 2045 2050
GEOSCIENCE SUpport Senllces, Inc.
Valier District/West Valley/Goodrich/City of RlaltG/City of Colton
Predlctiw Model Runs of the RlaltD-CD!ton Basin Groundwa~ Model
PW-llA and PW-118
1,000
900
800
700 ...
l c 0 600
~ 1:
8 c 500
8
I
~
I! l
400
300
200
100
0
2000
• Ob$!!1\ied
SC!!n ~rfo 1
2005 2010
-t ~!jbration
k e,.ario 3
2015 2020 2025 2030
81-35
··· ... \
Modt:1 l.aye.r S
2035 2040 2045 2050
GEOSOENCE Support Services, Inc.
Valley Dlstri~ Valley/Goodrldi/City of Rialto/City of CO/tOll
Pl'ecliclhe Model Runs of the R181to<olton Basin Graulldwllter Model
PW-llC, PW-110 and PW-llE
1,000
~"
800
700 ...
l c ~
I!! 1!!
600
§ 500
B
! I!
i ~ :.
400
300
200
100
0
2000
1-Dec-15
• Observed
--Scenario 1
2005 2010
--calibration
Scenario 3
2015 2020
I
2025 2030
81-36
2035
,. -,
·. ~ ~, ,, ..... ·""' ' .. . '"'-·. . .
·~. -.. , ... .-e .. -~.
~ "' ' \ "'--"'-. ·.: \
Model Layer 6
...
2040 204 5 2050
GEOSCIENCE SUpport Senllces, Inc.
Valley District/West Velley/Goodrich/City af Rialto/City af Colton
Preclctive Model RUIIS of the Rl81to-Colton Basin 6roundw8tet Model
EPA·MP7A through 7C
1 -Deo-15
--calibration
Scenario 3
••••
~
2010 2015 2020 2025 2030
81-37
Model Layer 5
2035 2040 2045 2050
GEOSOENCE SUpport Services, Inc.
V .. ley District/West Valey/Goodrich/City of RWto/City ol Colton
Predictive Model Runs of the llilllto<attcn Basin Groundwllter Model
EPA·MP70 and 7E
100
90
1
1
80
70
~
l c .g 60
e! ~
8 c:
8
so
i ~
I;!
l.
40
30
20
10
0
2000
1-Dec-15
• Observed
--Scenario 1
...
--calibration
Scenario 3
2005 2010 2015 2020
I
2025
81-38
Model Layer 6
2030 2035 2040 2045 2050
GEOSCIENa 5upp«t Services, Inc.
Valley District/West Valfly/Gcodlidi/City of lhllo/City of Colton
PredlclhleMoclel Runs oftbe Rialto-Colton Basin 6roundwllter Model
CPW-16A through 160
1,000 ·-~~ . . '
I • Observed --calibration I ~ -Scenariol Scenario 3
900 .
. . "" . '
800 ~ :··c, \
~··· •.•
700
_,
l Model Layer 5
& 600 ..
e! .. c
8 c 8
500
j
~ II A.
400
300
200
100 ~·-• .,
'i ~ ::II -a.
0 ;c·
2000 2005 2010 2015 2020 2025 2030 2 035 2040 2045 205 0 ID ....
1-oec-15 8 1-39 GEOSCENCE Support Servlca,lnc.
Valley Dlstr1ct/West Var..t/6oofJttldt/Oty of Rialto/City of Colton
Predictive Model Runs oftfle Rlelto-Colton Buin Groundlnter Model
CPW-16E through 16G
1,000
I • Observed --Calibration I --Scenarlol Scenario 3
900
800
700
...
l
r! 600 .g
e! ~
§
8
500
• ! 0 400 J! ~ :.
300
200
100
2005 2010 2015 2020 2025 2030
1·Dec:-U 81-40
Model Layer 6
2035 2040 2045 2050
GEOSCIENCE Support Servlc.,, Inc.
va~ DistriCt/West V*'t/Goo«ldi/CJty of m.lto/City of Coltan
Predictive Model Rims oftt. Rialto<olton Basin Groundwater Madel
100
PW-13A and PW-13B
2030 2035
Modet l..iiyerS
2040 2045
> 'a
1
::II
A. ;c
2050 ~
GEOSCIENCE Support Servi-, Inc.
Valley District/West Valley/Goodrich/City of Rlalto/Oty of Calion
Predicthle M odel RuN of the Rillito-Colton a.sin Groundwater Model
PW-148 and PW-14C
100Tr=============================~------------------------------~
• Observed -Calibration
--Scenario 1 Scenario 3
90
IZ1 -..... ........
r. -.r;: ............... "-.
80 ·"' LJ -: 'c · • '-,., "-.. ' .. ( \• . ' '-....~ '. . . "-
' 70 ~ ·~"~:-··--.'\.
.J r · l '-...... "'~; '
c 60 -!
I! Model Layer 5 ! ~ 50
8
!
:1 4 0
I! • l •
30
20
10
0 +------,----~--------~-----,~-----r------~------~-----r------.-------~
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
1-Dec-15 81 -42
Valley District/West Vdey/Goodrich/Clty of Rialto/City of Colton
Predlc:tiloe Model Runs of tile Rilllto<oltorl Basin 6roundwlter Model
CPW-17A and CPW-178
90
80
70
....
l
i :;::;
!l
60
c: ! so c
8
i 40 .c I:! u
Do.
30
20
10
0
2000
• ObseNed
--Scenario 1
• •••••
--Calibration
Scenario 3
2005 2010 2015 2020 2025 203 0
81-43
2035
Model Layer 3
2040 2045
,..
'U
)
Q.
5C
2050 ~
GEOSOENCE Support SeNt~ Inc.
VII ley Dlslrlct/West V.lley/Goodrtch/City of Rillito/City of Colton
PtedlctiYe Model Runs of the Rt.fto.Colton Basin Grounctw.ter Model
CPW -17Cand CPW-170
--Calibration ;-............._ ........._ ,
100 ~============================~-------------------f2f~"~.--~,~--~., ..
Scenario 3 "-' l : · . · . ''.., -...........,
~-'• .. · ·,,,
' c """ ... "<;_--• •' _,_ •
' " ' " ~ '~··P. \
Model Layer 5
,
2015 20 20 2025 2030 2035 2040 2045 2050
,.. , ,
~
::J
D. ;:c
IJI .....
1-Dec-15 81-44 GEOSCIENCE Support Setvlces, Inc.
Valley Distrkt/West Valley/Goodrich/City ofi!Wto/City of Colton
Predktlve Model Runs of the Rielto-Colton Basin Groundwater Madel
Colton-17
100r.=========================~--------------~-r.~~--~--~ / ;-··-m. ~--"' ~
l·Dec-15
--Calibration
Scenario 3
r~fllli
• • ...!!-\" ... I .--
2010 2015 2020 2025
81 -45
~···>, ~~·a:\
Model Layers 3, 5 and 6
~-~ :~11
I I I liiC ' "-------' -
2030 m ... 2040 2045 2050 203S
GEOSCENCE Support services, Inc.
Vdey Distrkt/West Valley/GooclrldVOty of lli8lta/Oty of Colton
PrHictive Model Runs of the Rialto-colton Basin Groundwater Model
Colton-15
lOO T.===========================~--------------~--(1~~~~---. --Calib ration ··. r··k} ~ ~-
1 -'t :. CJ '
. · Scenario 3 '' ...) ·· · ' ...... . . ' ' ""' ' ' "· ', ,, ...
~~-.. ~ · .... <\-
~ ''·,_ .•. ¢" \
Model Layers 3 and 5
~--
2015 2020 2025 2030 2035 2040 2045 2050
l ·Dec-15 81-46 GEOSCIENCE Support Services, Inc.
Vdey District/West Ve/kr/Goo«lch/CKy of Rialto/City of Coltllft
PredictNe Model Runs of the IIWto-Colton Basin Groundwater Model
...
l
r!
0 ~
1: 8 c 8
I
~
l
N-5
~ooor.====================;======~--------------~~~~~~--~ • Observed --Calibration · -Iii ""'-. '-..,__ .
900
800
700
600
•
500
400
300
200
100
0
2000
I <;) ' ' ' """ '-..,__ --Scenario 1 Scenario 3 ~--' ::. _ '\.
-~ .. '
• ·n. • •
2005 2010 2015 2020 2025 2030 2035
~ -~.·.-: .. \\ ~ ~-·;·
Model Layer 3
2040 2045 2050
~
l ;c
ID ....
1-Deo-15 81-47 GEOSCENCE Support Services, Inc.
v•~ev Dlsttlct/West V*'f/Goocttich/Oty of Rlalto/Oty o1 Colton
Predictive Model Runs ol the Rillito-Colton lllo5in Groundwater Model
900
800
700 ...
l c
.5! ..
I! 1!!
600
21 c 500
8
I
~ ~ :.
400
300
200
100
0 ~.
2000 2005 2010 2015
1-Dec-15
F-6
,-
2020 2025 2030 2035
81-48
Model layer 3
2040 2045
I •
> "C
1 a. :;c·
2050 ~
Valley Distltct/West V*'t/Goodridi/Clty of Rialto/City of Colton
Predidiw Model Runs of tllo!! Rialto-Colton Basil! Groundwater Model
F-6AS
1,000 -rr======================::;---------~~-.:::::::::--o::::::::::-1
calibration . --~ • -Observed
Scenario 3 ~~· _. •• -."'
.· ·.. "
'
~~~··.:
•
--Scenario 1
900
800
700 ...
l Model Layer 3
c 0 60 0
I 1:
8 c 500
8
i .c:
I! :_
400
300
• • ' • 200 •
••• 1l• • .. .. ,
100 ... . ~ ..... •
0 ..
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
f • ii
5C
m ...
1 -Dec-15 81-49 GEOSOENCI Support Servlcm, Inc.
Vdey Dlstrld/West V*'t/Goodrich/Oty of Rillito/City of Coftan
Predictive Model Runs of the Rlllto-Colton Basin Grounctw.ter Model
N-35
2,000 ~===================:::::::;-------:-. --~·1,.:--::: ......... :-: .. --~~____,. ''CJ;·
• Observed --Calibration r -1 . ........___ ~
-Scenario 1 · Scenario 3 '' L...-. • • '·,'\. ' '·""" ·. ~ "-, ~ ~ · .... · '\-
.....___ -~ · ... " \
'-.... ""' ..
1,800
1,600
1,400
l Model Layer 3
~ 1,200
I c 1,000 ·•· 8 i .. •
600 ..
400
•
200
0 .p::~~~~*-----·-.. I
, .. --.
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
1-Deo-15 81-50 GEOSCIENCE Suppon SeMces, Inc.
2035 2040 2045 205 0
t
D. ;c
m -
GEOSCIENCE Support Servt-, Inc.
v.-.y District/West Vlley/GoodrldtiCity of RJ.Ito/City of Colton
Predictive Model Runs of the Ri-'to-Colton Basin Groundwater Model
N-85
900
800
1,000 rr===========================~---------='.,.-~;_,~c--..::::::::::-.......,....1 • Observed --Calibration . ---kJ
--Scenario 1 Scenario 3 '·~-~ : •. . . '_'-·' " .. " ""' ~ .
. ~·. -""' . .-··: ·~\·-~ ' ... ' ..... , ......... eo;•
700
~
l Model Layer 3
c 600 -8
i
8 500 c
8
~
:1 ~ :.
400
300
200
100
0 -•--. --.
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
f
:I
Q, ;c·
ID ..
1-Dec-15 61-52 GEOSCIENCE Support Senlices, Inc.
2035
r:-.~~ ~~-·-. ~ .... l..J~ .· ~--.:\
Mot;lel l.<lyer S
f
i
)i"
2040 2045 2050 !!
Valley~ Valey/Goodrich/City of Rialto/City of Colton
Predictive Model Runs of the Rlalto<olton Basin 6rounctw.1er Model
N-12
1,000
• O~ErYed -C..-,IIbrailon r 1f:.
-St:mario 1 kenarto3 ~J.e :· ... 900 "' ' ..
800 ~~··.~ \
700 ...
l Model Layer 3
t 600 = :! ~
! 500 a
! ..
.i
-5
i
400
300 • • • 7 •• 200 J •
•• > 100 ~ ,;,
"' i ~ .. ~
Q.
0 , .. ;c
2000 2005 2010 2015 2020 ~07.S 2030 2035 2040 2045 2050 OJ ...
1~-lS 81-54 GEOSCIENCE Support SeNICB, InC:.
V., Dlsttict/W~ V.,/Goodr"tdl/oty of lhlto/City of ColtGn
Preclctift Model Runs of the Rialto-Colton llll5in Groundwater Model
M-3-Zone 1 through Zone 4
2030 2035
(i) •• . .•
Model Layer 5
2040 2045
. ..
~·
2050
GEOSCIENCE Support Servt-, Int.
V .. ey DlstrlcVWest Valley/Gooclrldi/City of Rialto/City of COlton
Predictive Model Runs of the Ri81to-Colton Basin Groundwater Model
M-3-Zone 5 through ZOne 7
1,000 r;::::::===:=::====:=::=========;------------;?i" •. """'"-:::---............. ;;;:::::-_,..,...., .. ,-f: -., .............
20 35
1-0ec-15 8 1-56
l /"r. ' ' '. . . . " ~G) .. ·• • "'
' ' , . '-·-~ ·"-;:,: • 7-···· . .'\
~ '··, .. ~.
........... ' ..
Model layer 6
2040
-.--
2045
-r-
20 50
f ~ s:c·
m ....
GEOSCIENCE SUpport services, Inc.
V .. .y District/West V .. .y/6oodrich/City of Ri*:o/City of Colton
Predktive Model Runs of the Rillito-Colton ll8$ln Groundwater MocW
Rialto-3
1DO r,=============================~------------------f.l7'~--"~~ • Observed
--Scenario 1
90
80
70
~
l c 60 !
I!
! ; 50
" i
J2 40
"§
t.
•
• •
30
20 •
10
•
0
2000 2005 2010
1-Dec-15
--Calibration
Scenario 3
2015 202 0 2025 20 30
81-57
----2035 2040 2045 2050
GEOSCIENCE Support Services, Inc.
APPENDIX 82
Chemographs of Perchlorate Concentrations for Selected Wells
in the Rialto-Colton Basin for Scenarios 1 and 3 with Mass Loading
GEOSCIENCE
~
Vdey District/West V*'t/Go4drich/City of Rialto/City of Colton
Precldlve Model Runs of the Rialto-Colton llasln Groundwllter Model
CMW-2A
5,000 rr================;----------------, I • Observed --Calibration I
4,500
--Scenario 1 (Mass Added) Scenario 3 (Mass Added)
.. ··
4,000
3,500
i
.{ 3,000
i Model layer 3
• ~ 2,500
8
i ~ 2,000
a;
D.
1,500
1,000
500
o -+""---'"'t"''--~.;....;: ..... _,_L ~ -,----.
2000 2005 2010 2015 2020 2025
1.0.c>l5 82-1
2030 2035 2040
'
2045
-.,
2050
GEOSCIENCE Support 5erviCIII, Inc.
v...., District/West V .. ey/6oodr1ch/City of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton llllsln Groundwater Model
CMW-lA
5,000 rr===========================~-----------------,
• Observed --Calibration
4,500
4,000 ..
3,500
l
t! 3,000 ~
!
8 c 2,500
8
~ i 2,000
1,500
1,000
500
--scenario 1 (Mass Added) Scenario 3 (Mass Added)
I Model Layer 3
.....
•
A ----r 0 +-~--~~~~~_.~ ....... ---.,
2000 2005 2010 2015 2020 2025
l..Oec-15 82-2
)oo
"CC
1 a.
(' --r· :;<•
2030 2035 2040 2045 20 50 IJI
N
GEOSCIENCE Support Services, Inc.
v.-., District/West ValleJ/Gooclrtch/Citv of Riallu/City of Colton
Predictive Model RLmS of the Rialto-Colton I8Sill Groundwater Model
PW-2
20,000 rr=========================~---------~~~; .~ ..... ~::----.:;;~=-~· • Observed --Calibration JJ, 1 j~·~ --
--Scenario 1 (Mass Added) Scenario 3 (Mass Added) ~ • • '\.
18,000
16,000
14.000
l g 12,000
~
110,000
8
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I
6,000
4,000
2,000
•
•
••
0 +----... ---~~-.... • • • •.
2000 2005 2010 2015
1-o-15
~~~\
Model Layer 3
(\
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2020 2025 2030 2035 2040 2045 2050
82-3 GEOSCIENa Support SeNices, Inc.
Valley District/West Vall«y/Goodridi/Oty cf Rialto/City cf Colton
Predictive Model Runs of the R181to<olton a.sin Gtounclwlter Model
1,000
+ Observed -calibration
PW-3
900 --Scenario 1 (Mass Added) Scenario 3 (Mass Added)
BOO
700 ...
l c 0 ~ ~
600
.. 8 500 "' 13
! I!
i ~ :.
400
300
200
100
0
2000
1-Deo-15
2005
~ . •• r-.;::
2010 2015 2020 2025 2030
82-4
20 35
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2040 2045
\
82-5
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Model Layer 3
2040 2045 2050
GEOSCIENCE Support Servl-., Inc.
VII ley District/West vdev/6oodtldt/City of Rlllta/City ol Colton
Predictive Model Runs of the Rlllto-Colton BIISin Groundwater Model
EMW-OSA
1,000 r.::==========================~--------r.=;l"""'~-:----~::::--1
• O~TYed --C:al1bntJOtt r;l · "-~·. ·, ' ...... Scl!llilrio l lM.:~~i M!fed I Scan;; no 3 [M;m Adde dl ~--' • ; • , '\. """ •.. " ~~ .. :
900
800
700
...
l Model Layer 3
.i 600
~
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!l
i 400
l
300
200
100 '\ •
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
~
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1-Dec-15 82-6 GEOSCIENCE Support Servlc:es, Inc.
Valley Olsdict/West Valley/Goodrich/City of Idaho/City of Colton
Predictive Model Runs of the Rialto -Colton Basin Groundwater Model
EMW-05B
:,040
+ ohserued Ld_it;rdlann
— Scenario 1 I Mass Aod� S�cen trla 3 (Mass AddvEQ
900 gt
800
700
cf 600
500
s
r
400
1'
d
a
300
200
100
0 !
2000 2005 2010 2015
2020 2025 2030 2035
Model Uver 5
2040
D
b
G
;v
ri
x
2045 2050
i or. d 5 92-7 GEOSCIENCE Support Servlcmr, Inc.
Valley Dlslrlc:t/West Vale'f/Goo«ldt/City of .U.Ito/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Modal
-l e .g .. :: c
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~~r.===========================~---------------r.~~--~~-. • Obs~m~e.d -C.IIbrntion ci .
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.. 900
800
700
600
500
400
300
200
100
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2000 2005 2010 2015 2020 2030
82-8
""' . ~ ~-·_
~ "' ...
Model Layer 6
2040 2045 2050
GEOSCIENCE Support Servllllls, Inc.
Velley District/West Va lley/Goodrich/City of Ri*'o/City of cakon
Predic:tive Model Runs of tile RW to-Colton Basin Groundwllter Model
EMW-04A
1,1)00 r.===========================::::;--------
• Obs~~~~~ C<~IIIJ(atiQn
900
--s~en:a<I O 1 [1\'l(I;S~ Add ~~ S!:sn.arla 3 lMa~$ ADitftlJ
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l c
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600
21 r:: 500
~
I
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400
300
200
100
0 '----
2000 2005 2010 20 15 2020 2025 2030 2035
!VIodel li!yer 1
GEOSCENCE Support Services, Inc.
Valley District/West Va k!f/Goo6ridi/Cty of Rialto/City of Colton
Pred"octlve Model Runs of tM Rillito-Colton Basi~ Grounclwlter Model
EMW-048
1,000 r;:=:=;::::::~====================::;------------r.=~l'"-:::::--~:-1
• O~rved --C~li b rniOII I ..... ·S . ' --Sc~narlo 1 1 Mass Added I S(.~na n o 3-(Mass Mded) ".. I. J \ • · "
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800
700
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300
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> 'tl
'2
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Q.,
5C
01
""
1-Deo-15 8 2-10 GEOSCIENCE Support Senrices, Inc.
V*'f District/West Valey/Goodtidt/Cfty of Riallo/Cfty of Colton
Predictive Model Runs ofthe Rialto<olton Basin Graunclwater Model
EMW-o4C
1,000 r.========================:;---------?--.;;;:::::-~;;:;::;:--,
•· O bsE'J'Ied --C<!ltbr<ll l!ln f.
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~ ~.-.. : ... 800
700
600
500
400
300
200
100
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2000 2005 2010 2015 2020 2025 2030 2035
B2·l 1
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r-
2040 2045 2050
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VII ley Dlstrld/West v .. ey/Goodrtch/City of Ri llto/City cf COlton
Predictive Model Runs of the R .. lto-Colton Basin Groundwater Model
700
-' l c 600 0 ~
1: 8 500 ~ 0
1..1
!I I!
.S!
£ .. .. a.
400
300
200
100
0 +-------r-----~~----~----~
2000 2005 2010 2015 2020
1-De~lS
PW-8A
Model Layer 3
.-
2025 203 0 2035 2040 2045 2050
82-1 2 GEOSCIENCE SUP$10<t Services, Inc.
Valley Olstrkt/West V*'t/G4odlidl/ctty of lli-'to/City ol Colton
Predcdve Model Runs of the Rl•lto<olton Basin Groundwater Model
PW-88
1,000
• Observed --Calibration
900
-Scenario 1 (Mass Added) Scenario 3 (Mass Added)
800
700
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l Model Layer 5
I! 600 J2 .. I!
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8 500 c
~
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J2
.1: ~ :.
400
300
200
•
100 . ~ •
0 '• . ..._
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
82-13 GEOSCIENCE Support 5ervi ca, Inc.
V .. ley DisMct/West Vaky/Goodtlich/Clty of Rillito/City of Colton
Predidive Model Runs of th~ Rilllto<olton BIKin Groundwatl!r Mod~l
PW-BC, PW-80 and PW-BE
1,000
• Observed --Calibration
900
-Scenario 1 (Mass Added) Scenario 3 (Mass Added)
800
700 -...
l Model Layer 6
c 600 .g
I! ~ ~ soo c:
8 a I!
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400
300
200
100
+
0 a I I . I ~ ...__· ... -..... I I I ----.--..,.---.-
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
l·Dec-15 82-14 GEOSCIENCE Support Services, Inc.
v.aey District/West Valllly/Gooclrlch/Clty of Rillito/City of Colton
Predic:tive Model Runs of the Rialto-Colton Basin Grounctw.W Model
WVWD-22 (Intermediate Aquifer)
• Observed -Calibration
900
-Scenario 1 (Mass Added) Scenario 3 (Mass Added)
800
700 ...
l c
.2 ~ 1:
600
8 !C 500
8
I ..c
1:! :.
400 •
300
200
100
0
2000 2005 2010 2015 2020 2025 2030
B2·15
..
...
Model Layer 3
,.
\ "a
"a
' II
I :=I
I ~
2035 2040 2045 2050 Ill
N
GEOSOENCE Support Services, Inc.
Valley District/West Vakfv/Goodndi/City of <o/C1ty of Colton
Predictlw Model Runs of the RWW.Colton Basin GI'OUIIChmer Model
WVWD-22 (Upper Re1ional Aquifer)
1,000 r.==================::::::;----------;3~:------:::::::::::-1
• Observed --calibration lf!.~'·:----...._ '~
900 --Scenario 1 (Mass Added) Scenario 3 (Mass Added) "'-. -: '• ; • • . . ""
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800
700 ...
l c 0 -;::; s
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8
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1:! :.
400
300
200
100
0 +----~----~----~--'~-~--
2000 2005 2010 2015 2020 2025
1-Deo-15 62-16
2030 2035
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Model LayerS
~
i
:I a. -. . ---=--. i --. >C.
2040 2045 2050 ~
GEOSCIENCE Support SerYices, Inc.
Valley Distrkt/West V*'t/Goodlid1/0ty of Rialto/City of Colton
Preclldlw Model Runs of the Rt.lto-Colton ...., 6roundwllter Model
.... l
i
! .. c • .. c
0 u
!I
I!
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EMW-G3A
lOOr,=============================~------------------~~~~~--~ • Observed --Calibration • (· >
90
80
70
60
50
40
30
20
10
0
2000
' ~·. ·,
-Scenario 1 {Mass Added) Scenario 3 {Mass Added) '"-1---' • • c.:5 · '\.
«~.:\
\
2005 2010 2015 2020 2025
82-17
2030 2035
Model Layer 3
2040 2045
~
1
~
2050 ~
GEOSCIENCE Support Sel'lllces, Inc.
Vlllley District/West V•ktf/Gt>odridi/Clty of Ri*/City ol Colton
Predlctlw Model-ofthe RWto-Colton a.sin Groundwater Model
EMW-038
100 ~==========================~----------------~~~--~--~ lr ... f l ~ • Observed
90
--scenario 1 (Mass Added)
80
70
_,
l c 60 0 ~
i
8 50 c
8 a
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l Q,
40
30
20
10
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-Scenario 3 (Mass Added) l.f.•. ' ... ·.tS '· '"' . '. ·. ·-, "' . . .. "
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f
0 ~-------.~~---r----~~-----,~-----r--~~~-~--~-~-~-=-~~~~~~----
ii -~ ;c
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 ~
1-Dec-15 82-18 GEOSCI ENCE SUpport 5etvk:es, Inc.
V*'t District/West V*'!/Goodilcki/City of Rialto/City of Colt011
Predictive Model Runs of the Rillito-Colton Basin Grounctw.ter Model
EMW-03C
100 ~============================~---------------;--~~~--~--~ II .. · r." . ............ .
/: -~: -~ ~>:\ ........ ""'-•.•
90
80
• Obsi!IVed --Cal ibration
Scenario 1 [Mass Added) Scenario 3 (Mass Added)
70
Model Layer 6
~-------~---~==~~=-~~------~-------r------~~-----. r • 2030 2035 2040 2045 2050
1-Deo-15 82-19 GEOSQENCE Support Services. Inc.
Valey DlstJttt/West Valley/Goodrlch/Oty of Rilllto/Oty of Colton
Predlctlw Modelllllns of the RWto-Colton Basin Grounc:tw.ter Model
EPA-MW9A
1,000 r;::=:;:::==;==========;========::;---------r.=~·-.....'=---:;~::::---,
~)-_, :. • Oh>erv.e-d --Qllb r~tlan cf :\
-Sc enatio 1 (111'..1:!.~ A!ld!!df ~;;oo] (Massl\ddt!d) ~ ~ ®·.
900
800
700
l
8'
'lW
600
rr
i 500 s
f • l .r;
~
l
400
300
200
100
0
2000
1-Dec-15
2005 2010
• •
"----~·:·: . \
~ "'-..•'.:
Model Layer 5
2015 2020 2025 2030 2035 2040 2045 2050
82-20 GEOSCIENCE SUpport Services, Inc.
Valley Dlstrid/West V...,/Gooditidi/City of Rialto/City of Colton
Predictlw Model Runs of the~ ll8sin fiiroundwater Model
EPA-MW9B
1,000 r.::==============::::;-----------;::;-,---:::,-~
• Observed -Calibration ~:l ··,j~ .-.~· ·· ~ .
-Scenario 1 (Mass Added) Scenario 3 (Mass Added) ~ 0 · .
' . . "' ~~:·::\
900
800
700 ...
l Model Layer 6
{ 600
e ,:; .. .. c 500 a .a e
..2 .1:!
1:!
400 ..
Q.
300
200
100
0 ~--~----~~--~~~=;~==~====~===T====~--=~=-=--r---~
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
82-21 GEOSOENCE Support Services, Inc.
Vd~ District/West V*'f/Goodt'ldt/City of Rillito/City vi Colton
Predictive Model Runs vi the RU!Ito<olton a.sin Gtoui1Ciwat. Model
PW-SA and PW-58
1,000 r.========================~---------"'F.'l"""""'~-0:::::::~~ ,~ cf :·~0· .\.,
• Observed --calibration
900
--Scenario 1 (Mass Added) Scenario 3 (Mass Added)
800
700
....
l c
.5! ..
:! ~
600
fl IC 500
8
II !
.5! .c ~ :.
400
300
200
100 ....
0 ~-~~---------.------~-----.r--
2000 2005 2010 2015 2020 2025
1-Dec-15 82-22
2030 2035
' . . ' ~. · .. ··,., " ,, ~."··:·.->,_-
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Model LayerS
f'
;-
2040 2045 2050
~ "CC
"CC
CD ::s
Q. ;c
IJI
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GfOSCIENCE SUpport Services, Inc.
Valley District/West Vektt/Geodikh/C'rty of Rialto/City of Colton
Pn!didift Model Runs of the llalta-Colton Besiol Groundw•ter Model
PW-SC, PW-SD and PW-SE
l,OOO r.:=.=o=bs=e=rv=e=d=======c=a=ll=br=at=lo=n====~------------:-.-:lf:;'• .c-• .~':::::, -~ .. ---.::::::::::---l
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800
700 • _,
l c .g 600
• i
8 c 500
8
I
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400
300
200
100
0 ./
2000 2005 2010
l·Deo-15
•
201 5 2020 2025 2030
82-23
20 35
"'~ ·· ... >. ~ · ... ""' •.•
Model Layer 6
2040 2045
GEOSCIENCE SUpport Servlclls, Inc.
v.uey District/West V.AJ.y/Goodik:h/City of Rialto/Oty of Colton
Prwcfic:tive Model Runs of the Riillto<olton Basin Grou...,_ter Model
1
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.5I
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~
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EMW-OlA
1,000 r;:::==========================;---------"'F.l r.l """'--.;;;;:::::--l
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900
800
700
600
500
400
300
200
~--S:ccnano l (M!lfiS A1l'!J~clt Scen ano ~ j Mas~AdcfNl) 'Zt: : · . . "
·C9 . ' ~~·::
r
2025
B2-24
--.-·--
2030
...
2035
Model Laye r 5
---T-
2.()~(1 ln45 2.CJSQ
GEOSCIENCE Support Services, Inc.
Valley District/WISt Vdllly/Goodtt'kti/City of Rialto/City of Colton
Predlctift Model Runs of the Rialto-Colton linin Groundwater Madel
1S/SW-3AS and 15/SW-3A6
1,000 r.=======================::;----------1;":·--.:;:::::--"":-1
• Observed -Calibration · : ~t . · -~
--Sc•mario 1 (Mass Added) Scenario 3 (Mass Added) ' L ! .. . " ~-, ·•· ··o ', "' . ., ~:··~ '
900
800 ' ..... '"'-:-
700 ...
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& 600 ...
I!! .. c .. u c 500
8
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.1: 400
~ .. D.
300
200 •
100 ,~
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
82-25 GEOSCIENa SUpport Services, Inc.
Valley District/West Valey/Goodrldy'City of Rialto/City til Colton
Predictive Model Runs of the Rlelto-Colton Basin Groundwllter Model
EMW-018
1,000 r.=========================::;----------_h)r.r,---.........._'=---,
i 1 • Ol:kl1!~d --Calliir.~tton I [jl~.· ·.-~. "'-...-..........
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700
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c 600 • '.i!
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500
B ~
.5I 400 •
~
300
200
100
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2000 2005 2010 2015 20 30 2035 2040 2045
82-26 GEOSCIENCE SUpport Services, Inc.
Valley District/West Valley/Goodtrich/City of Rialto/City of Colton
Predidiwe Model Runs of the Rialto-colton lasln Groundwater Model
1S/SW-3A7
~OOOT,===;=======================~------------~~-r.?'~--"~~ II • Observed --Calibration I / · r.: ~ ~
900
II Scenario 1 (Mass Added) Scenario 3 (Mass Added) "'<... Lf-: ~ •. . . "'-· ·-......
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700 ...
l Model Layer 6
c 600
1
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8
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:.
300
200
100
0 ~
~
l
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 ~
1-1Jeo.15 82-27 GEOSCIENCE Suppoft ServiCIK, Inc.
V1lley District/West Vl lley/Goodlich/Clty of Rialto/City of COlton
Pl"edlct1ve Model Runs of the Rillto-Colton Bllsin GroundWiter Model
Rialto-&
1,000 r.================;----------[f.~r.l:::;;--,,::::-,---.;;:........._::---....,.
• Observed --Calibration ....._ .........._ . ·-" ............
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"-.., ''. · .. '·
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900
800
700
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c 600 1 f! 500 c
8
~
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~ :
300
200
100
0
~
l a.
5C"
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 ~
1--o-15 82-28 GEOSOENCE SUpport 5efvlces, Inc.
Valley District/West Valley/Goodrldl/Cily of lli*o/City of Colton
Pretlctive Model Runs of the RQ!Ito-Colton Basin Groundwatar Model
PW-9A, PW-98 and PW-9C
1,ooo r;::::=:=:=:=:=:=:=:=:=:=:=:=:=::::;--------...... ,,....~,,--.~;;:::::--...,. ·· 1
• Observed --calibration ,_ ;
1
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900
800
700
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r! 600 .!!
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I 400 :2!
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300
200
100
0 ---)o
"D
1
~
2000 2005 2010 2015 2020 2025 203 0 2035 2040 2045 2050 ~
1-Deo-15 82-29 GEOSOE'NCE Support Servl-, Inc.
Valley District/West Valley/Goodrich/City of RJ.Ito/City of Colton
Predictive Model Runs ofthe Rlllto<olton Basin Groundwater Model
...
l c
1 8 c
8
!
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PW·9D, PW-9E and PW·9G
1,000 r.=====================~-----f'"---::~~-• Observed -Calibration -~
f_ ·.• . ,, --Scenari o 1 (Mass Addedl Scenario 3 (Mass Addedl "-:., ,
900
800
700
600
soo
400
•
300
200
100
• •
0
2000 200S 2010 2015 2020 2025
82-30
..... . . . '
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2030 2035
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2040
~
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2045 2050 ~
GEOSCENCE Support Services, InC.
Valley District/West Vllley/Goodrlch/City Qf RWto/Oty of Colton
Predidlw! Model Runs Qf the RiWto-C.olton Basin Groundwater Model
PW-lOA and PW-108
~ooor.=============================~----------------~~~~--~~~ • Observed --Calibration r •· .1 !. .
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-SCenario 1 (Mass Added I Scenario 3 (Mass Added) ~-.J ' • • ' · ~: ··~ ··"'-~~· .. :\ 900
800
700 ...
l Model Layer 5
j 600
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i • Jl 400 .1::
t! • • D.
300
'
200 I 100
0
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 20 50
82-31 GEOSCIENCE Support Servle~~~,lnc.
V .. ey Dlstrtc:t/West V.lley/Goodl1ch/C1ty of Rholto/Clty of Colton
Predictive Model Runs of the RIMto-Colton Basin Graundwner Model
PW-lZA and PW-128
~~ r;==.==o=~=e=N=e=d===========-~=-=c=a=ll=br=a=tio=n========~----------------------.--~~:~.:1.'~~"~.-~--~~~----~
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900
800
700
600
500
400
300
200
100
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2000
1-Dec-15
2005 2010 2015 2020
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-~ ~ ~ 1 ~--~
2025 2030 2035 2040 2045 2050 ~
82-32 GEOSCIENCE SllppCirt SeMces, Inc.
Valley District/West V•lflv/Goodttidi/Crty oflli*D/City of Cotta.
Predctlw Model RUI\$ of the RJ.ItD<ofton a.sin Grounctw.ter Model
EPA-MP8A through SC
100rr===========================~------------~-r.~~--"~~
• Observed -Calibration · .. £. ~
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80
70
60
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40
30
20
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2000
1-Dec-15
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scenario 1 (Mass Added) Scenario 3 (Mass Added) l_l · .• ·,.,
.. 2005 2010 2015 2020 2025 2030 2035
~
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0 ... ..
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\
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,·
2040
··.-·
2045
~
2050
GEOSCIENCE Support S•NJ-, Inc.
Val ley District/West V'I!Mey/Goodil1ch/Clty of RW.O/City of Colton
Precllc:tive Model Runs of the Rllllto<olton I8Sin Groundwatll' Model
... l
~
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EPA-MPSD and BE
lOO r.=============================~----------------~~--~~--~ • Observed --Calib ration ·-fl ·,--...._ '--..,_
Scenario 1 (Mass Added) Scenario 3 (Mass Added) ,~· ~ : • .·.: · ~""' ,,
·~""" Jo ''
90
80
70
60
50
40 ..
30
20
10
•••• o +----.----...,...----,
2000 20 05 2010 2015
-.----
2020 2025
62-34
''-..' ~ 0 •• _ ., ""' ""'· ... ""' ,_
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-,---.---·----...--
2030 2035 20 40 2045 205 0
GEOSCI ENCE Support Servk:u, InC.
V1lley District/West Va lley/Goodrich/City of Ri-'to/City of Colton
Preclictl.,. Model Runs of the Rialto-Colton Basill Groundwllter Model
PW-11A and PW-118
~OOO T.=============================~------------~~~"~~~--~ I • Observed --Calibration I ./ ·· ~;; -'-.~ '-.....
Scenario 1 (Mass Added) Scenario 3 (Mass Added) . t. J· . .. . · . " ~ ...........
900 • . ·., .,
'
800
700 ...
l Model Layer 5
c 600 .2
i
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8
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·400
300
200
100
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2040 2045 205 0
~
1
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82-35 G£0SOENCE Support Services, Inc.
Valley Dlstrttt/West Vahy/Goodridi/City of Rialto/City of Colton
Predlttlve Model Runs of the Rialto-Colton Basin Groundwater Model
...
l
f
i! ~
8
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PW-llC, PW-llD and PW-llE
1,000 r;,=========================l:;-------Lf?.l""'.'--:::-.. -_-.::::: ..... :::,-_~-. • Observed --Calibration _--.,_ ~ . . '-......
Scenario 1 (M ass Added ) Scenario 3 (M ass Added) · ~ ·" . . "-. 900 .. (. '
800
700
600
500
400
300
200
100
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0 !----~--~~~======~====~~==------====~-~~~:::::::;::::==~~~==~=-========-;d-
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
1-Dee-15 B2-36 GEOSCIENCE SUpport Services, Inc.
Valier Discrict/West V*'t/Gt>odtich/C:fty of Rillito/City of Coltoa
Precllcthe Model Ru M of the Rlalto-ColtDI'I llllsin Groundwllter Model
EPA-MP7A through 7 C
WO Tr=============================~----------------~~~--"~~ II • Observed -Calibration I ·. f.]. , ~. '~ II -Scenario 1 (Mass Added) Scenario 3 (Mass Added) ""'-I~·-' • ;· .. · """ ~
90 ~"· ' .,
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70
.....
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c 60 0 ~
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30
20
10
••• •
• 0 ------··· ...
2000 2005 2010 2015 202 0 2025 2030 2035 2040 2045 2050
,.
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'D .. :s ca. x·
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N
82-37 GEOSCIENCE Support Setvlc:.,lnc.
Valley Distrkt/West Vdey/Goodtich/City of Rialto/City of Colton
Predictive Model Runs of the Rillito-Colton Basin Groundwater Model
EPA-MP7D and 7E
lOO r,=============================~----------------r-1"~~~--~
I • Observed --Calibrati on I r ·~. :'~, ---~
--Scenario 1 (Mass Added) · Scenario 3 (Mass Added) "'-~. U : • "
90 "·· ••• " '""' .• ~ "-, '·~ ,"··~ · ... · .... -
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80 ·
70
l Model Layer 6
c 0 60
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20
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
f
ii
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1-0ec-15 82-38 GEOSCIENCE SUpport Services, Inc.
Valley District/West V•llly/Goodrlch/City of .u.IID/Crty of Colton
Predictive Model Runs of the Rialto-Colton llasln Graunctw.ter Model
CPW-16A through 160
1,000
i l • Observed --Calibration I
Scenario 1 (Mass Added) Scenario 3 (Mass Added)
900
800
700 ...
l Model Layer 5
c
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600
~ 500
8
ll I!
..5l ..c: t
400
a.
300
200
100 -· /' .---0
2000 2005 2010 2015 2020 2025 2030 2035
1-Dec:-15 82-39 GEOSCIENCE Support SI!'VIC.. Inc.
Valley District/West Vdey/Gooclrtch/City of Ri*o/City af Colton
Predidive Model Runs af the Rialto-cotton Basin Groundwater Model
...
l c
-! I!
~
§
8
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CPW-16E throueh 16G
1,000 r;::=========================~---------~'1:''-::----:::......_:::::---:.,...,
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900 ' • • • ., "-, . ', · .• " "' --~-,:, .. ~ ~-:\.
~ ""'·· .. ~ \
800 .
700
Model Layer 6
600
500
400
300
200
100
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CD
-:I
0 1------~---A·~~~~==~======~~==::~~====~==~==~=====::;:::::::;::::::=:J ~
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 ~
1-Dee-15 82-40 GEOSCIENCE Support Services, Inc.
Valley District/West V*r/Goodrich/Clty of Rlalto/Clty of Colt011
Predictive Model Runs of tile Rialto<dton Basin GroundWIIter Model
• Obsetved --Calibration
PW-13A and PW-138
-Scenario 1 (Mass Added) Scenario 3 (Mass Added)
90
80
Modell..ilyer5
I~ (
(\,..
~----~---=-~--~----~----~--~----~--~----~--~~ 1
20 20 2025 203 0 2035 2040 2045 2050 ~
1-l)ec-15 B2-41 GEOSCENQ: Support Services, lllc.
Valley District/West v.-.y/Goodrtch/City of ~/City of Colton
Predictive Model Runs of the Rialto-Colton ltsin GroundMtar Model
PW-148 and PW-14C
lOO T.=============================~----------------------------------------------------------~ • Obse rve d --Ca libration
Scenari o 1 (Mass Added) Scenario 3 (Mass Added) 90 1~----------------~----------------~.
• .!a~, • ~ [_r.;·,~~
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70
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20
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0 ~----~----~-r------~----~r------r------,-----~r-----~------~------~ ~
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 ~
1-Dec-15 82-42 GEOSCIENCE SUpport Services, Inc.
V..., District/West V...,/GIJodtrid>/City of ~/City of Colton
Predictiw Model Runs of the Rialto-Colton llain Groundwater Model
8 0
70
_,
l c
.2
i
60
§ 50
8
I
~
I:! ~
40
30
20
10
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2000 2005 2010 2015
CPW-17A and CPW-178
2020 2025 2030 2035 2040
B2-43
2045
···O ..
)o ,
1
:::J
D.
)("
2050 ~
GEOSOENCE Support SeNicer,.Jnc.
Valley District/West Valley/Goodrich/City of Rielto/City of CoiiDn
Predidive Model Runs of the Rlaho-Colton Basin Groundwater Model
CPW-17C and CPW-170
100 r,=============================~--------------~~~~~--~ r···~ >:--.._ ~
., LY·::-., .·· . '" "
~ '·· . "' ~~.~\
90
80
• Observed --Calibration
Scenario 1 (Mass Addedl · · Scenario 3 (Mass Addedl
70 ...
l Model Layer 5
c 0
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60
1:
8
1: 50
~ a I! ~
1:! :.
40
30
20
10
0 4----~---·~~--~~~---~------r----~r-----~-----r----~-----~
2000 2005 2010 201 5 2020 2025 2030 2035 2040 2045 2050
1-~15 82-44 GEOSCIENCE SUpport~. Inc.
V•I'-Y District/West V•ley/Goodrid!/City of Rlalto/Oty of Colton
Precldlve Model Runs of the Rialto<olton Basin Groundwater Model
Colton-17
lOO r,===========================~----------------IG~~~~--~ • Observed --Calibration : -I i ~ "-...__
90
SCenario 1 (Mass Added) SCenario 3 (Mass Added) J • . · """ ~
.· ·. '" '
80 ~-\
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l Model Layers 3, 5 and 6
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0 --• I • . .. ...:.c;.--.
I
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 ~
l·Dec-15 B2~ GEOSOENCE Support Services, Inc.
Valley District/West Valley/Gooclrldt/City of Rillto/Crty ol Colton
Predictive Model Runs of the Rlllto-Colton Basin GI"'OM''dwatet' Moftl
COiton-15
100 r.=============================~------------~~~~~~~--~
• Observed -Cali bration 1-·f .. '·.'-.... '-~ ...
....
l c .2 .. e
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8
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90
80
70
GO
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40
30
20
10 -
0 2000
1-Deo-15
--scenario 1 (Mass Added) Scenario 3 (Mass Added) ~ l... • • · "\. ''·, .. "' ' .. ~
• •
....... ' ~,~~~:.~··'\
Model Layers 3 and 5
~I
. . . .... ~--·-· ·-----~--~-~------~r-----~r-------r-------r------r-------r-------~
2005 2010 201S 2020 202S 2030 203S 2040 2045 2050
82-46 GEOSCIENCE Support Services, InC.
Valley District/West Valley/Goodrich/City of I!Wto/City of Calton
Preclcllve Model Runs of the Rlaho-Cofton Basin Groundwater Model
N-5
1,000 r.==========================::;---------r.:i"",,~--::::::::--1
• Observed --Calibration · : -~ •· ~ ~
900
Scenario 1 (Mass Added) Scenario 3 (Mass Added) "-' l_§S: . ." '\.
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~ .,.l. 800
700
....
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i 600
:0: ~ • c: 8 500 c:
8
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:.
300
200
100
0 ~--4111r-J~~....;t,:.......J---· ·-· --' '"'\ ~
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
1-Dec-15 82-47 GEOSOENCE Support SetviCM, Inc.
Valley Olstrkt/West Valley/Gooclrlch/Oty of Rialto/City of Colton
Predictiw Model Runs of the Rlalto<olton ll8sin Groundwater Model
F-6
1,000 r;::•::O:b:s:e:N:e:d::::::::::::_:_:~C:a:llb:r:at:lo:n::::::::::~---------------------.-___ lf_~f.-... <~~~~-_--,-._~.~---~--l
Scenario 1 (Mass Added) Scenario 3 (Mass Added) '"' l.,.9t.: --
900
BOO
700 ...
l
~ .. 600
f .. c .. .. 500 c
8 s e
:f
t! :
400
300
200
100
0
2000 2005 2010 2015
1-~15
2020 202S 2030 2035
B2-48
', • rl • .., """ -. " '" -~~· .. -_ ·:'·\·
'· ., . '-.... ..
Model Layer 3
2040 2045 2050
GEOSCIENCE 5uj)pOrt Senllces, Inc.
Vai'-J District/West V*'t/Goodtrich/Crty of Rialto/City of Colton
Predictive Model Runs of the Rialto-Colton BIISin Groundwater Model
700
....
l c
t 1:
600
I!! c 500
8
I
~
I! :.
400
300
• • ~ • 200 •
••• 11• • .. .. ~
100 . . .. ..... •
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2000 2005 2010 2015
1-~15
F-6AS
~
2020 2025 2030
82-49
2035
Model Layer 3
2040
~
1
:II
ICL ;c
2045 2050 ~
GEOSCIENCE Support Sflrvtces, Inc.
V .. ley Disttid/West Vllley/Gooclridi/City of Rialto/City of Colton
Predidlve Model Runs of the Rlelto<olton Basin Groundwater Model
N-35
2,000 r;::==========================~-------r.;--;;;;;~----,~::---, • Ob-serv ed --Cal ll»'iillon ~
-_ -S CA!rl~r'o 1 (M~~~ Added) Scenarfo 3 (M~s~ Ac:ldeaj ~: : •
1,800 ~ ••• ' . ~ ~:·.-: .\ 1,600
~ ... ,, .. :
1,400
l Model Layer 3
f 1,200
11,000
8 •
i t 800 •
600 •
400 •
•
200
0 .p=~!......:~~~·--~--· . I
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
1-oec·lS Bl-50 GEOSCENCE 5uppol't Setvices, Inc.
V•IIIIY Dlst11ct/West Vdev/Goodrich/City of Rialto/City of COlton
Pre dictive Model Runs of the Rialto-Colton lllsin Groundwater Model
N-3D
2,000 r;:::::======================;--------:-: .. :--. (r:=;o, -::::,:;----..::,:;::----,
• Observed -Callbrc~tlon · ;··· .g_' . '-....., .............
1,800
1,600
1,400
l g 1,200
i
§ 1,000
8
f I aoo
:.
600
400
200
0
2000
1·Deo-15
scenario 1 (Mass Added) scenilriO 3 (Miss Added) ' I ~-. .~. . ~ . ....._ « .. ~\
·~--~------~------~---,--
2005 2010 2015 2020 2025 2030
82-51
2035
Model lAyer 5
-,-
2040
--.-
2045
-r-
2050
GEOSCENCE Support Servl121, Inc.
Valley District/West Valley/~ich/Crty of Rialto/City~ Colton
Preclictive Model Runs of the RU!lto-Colton Basin 6roundwtter MCidel
N-85
1,000 r.::============================:;---------lr''~-~::--1
• Observed --Calibrati on • ·-· · -~ ""' l ··, . ' '~ --Scenario 1 (Mass Added) Scenario 3 (Mass Added) "V • ·· ', ..
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~ • • ~· D ••• • .,. ' """ ~. ' ""' . ... \ ""' ., ~·
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800 -
700 ...
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c ! I!
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600
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8
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~
1:! .f
••
300
200
100
0 +------~-----~~~ ·~ / ....
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
1-Dec-15 B2-52 GEOSCIENCE SUpport Services, Inc.
Valley District/West V....,/Goodtlch/Crty of RWto/City of Colton
Preclidtwe Model Runs of the Rialto-Colton B8sin Groundwater Model
N-80
~~ ~==.==o=~=e=N=ed:=:=:=:=:=:=_:~=ca=r=~br.rt:=lo=n========~----------------~ ... ---... ~.~~~~~~-~--~~~----~
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~··.:\ 900
800
700 ...
l Model Layer 5
l 600
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8
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.5I .tt. 400
~ • A.
300
200
100
0 -~-----,...-----.,r------.. -I ·er==
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045
82-53 GEOSCENCE Support Services, Inc.
VII ley DlstJtct/West V.Uey/Goodrich/City of Rialto/City of Colton
Predictive Model Runs of the Rlaho-Colton a.sin Groundwater Model
N·12
• Observed --Ca li bration --' "--..
1,000 ~o:=::=:=::=::=::=:==============:::;---------f"l"~-"'~1
--Scenar io 1 (Mass Added) -· Scenario 3 (Mass Added) 'v, l. i: •.. · "-, -....:.,
"'( ·.. "··
......... ~'e ••· ., .............. . ' . \
.............. ..... . . . \ ""'.... ' ..
900
800
700
....
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rt 0 'ii
600
:a c u .. c 500
8
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!:! .. G.
300 • • • ,. v 2.00 -· -·
0 +-----,,--------.--""""-'~ .............
2.000 2005 2010 2015 2020 2025 2030 2.035 2040 2045 2050
1-Dec:·15 62·54 GEDSCENCE Support Services, Inc.
Valley Dlstric:V'Nest Valley/Goodrich/City of Rialto/City of Colton
Predictive Model Ru ns of tile Rialto-Colton Basin Groundwater Model
M-3-Zone 1 through Zone 4
1,000
• Observed Calibration
900
--Scenario 1 (Mass Added) Sce nario 3 {Ma ss Added)
BOO
700
.....
l c 600 0 ... • i
8 500 c:
" I
i :
400
300
200
100 -\.. , ... 1\
0 '----. ·-'
2000 2005 2010 2015 2020 2025 2030
82-55
~
2035
Modellolyer5
2040 2045
~
1
!Ct.
5C
2050 e
GEOSQENCE Support Services, Inc.
V811ey District/West V..,/Goodtridt/Oty of Rialto/City ol Colton
Predictive Model Runs of the Rialto-Colton linin Groundwater Model
l c: ! . ..
§
d
f
Jl
ii
t ....
M-3-Zone 5 through Zone 7
1,000 ~r===========================::::;--------r.l""'-..........~-,~:::--1
• Ob}CJVeO -Callllfatioo 0~.~ ',· --..., ~
900
800
700
600
500
400
300
200
100
--SC:M~IIO l tM;mAtfded} SCena riu3 (M~s Mdcd l ~ ctl ., "\
~:,\
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Model Layer 6
-· .... /
0 +----~~~,.~•·,·•·t~·------~~~----~;r--~--~~------r-------r-~----r-----,-
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
1~15 B2.SG GEOSOENCE Support Servlcu, Inc:.
Valley District/West Valey/Goodrtch/Cty of Rialto/City of Colt011
Preclicliwe Model Runs of the Ri811o<olton Basin Groundwater Model
Rialto-3
100 Tr===;=======================~------------~-r.~~--"~-r • Observed --Calibration ···
Scenario 1 (Mass Added) Scenario 3 (Mass Added)
; '· fi t J • ·~ -.. " . . ~0 ·. ~ ~· .... '
~ ""''
90
80
70 ...
l Model Layers 5 and 6
f 60
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21 •
~
.52 .I! 40
~ ..
D. • •
30
20 •
10 •
•
0
2000 2005 2010
1..Qeo.15 82-57 GEOSCENCE Support ServiCI!s, Inc.
APPENDIX 83
Chemographs of Perchlorate Concentrations for Selected Wells
in the Rialto-Colton Basin for Scenarios 2 and 4 without Mass Loading
GEOSCIENCE --...-.. ·--·-"-/..--
Valley District/West V•lley/Gooclr"od1/City olllialto/City of Cotta.
Precllctive Model Runs ofthe Rblfto..Colton Basin Groundw•ter Model
5,000
4,500 'j
·• Obs erv-ed l;~hll n.l iQ!I
-scenano2 SCtmarlo '1
4,000
3,500 ..
l
; 3,000 .. ..
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8
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~ :.
1,500
1,000
500
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2000 2005 20W 2015 2020
1.0«·15
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2025 2030 2035 2040 2045 2050 m w
83-1 GEOSCIENCE SUpport Servlc.s, Inc.
Velley Dlstrlc:t/West Velley/Goodrlch/City of Rialto/City of COlton
Predic:tiw Model Runs of the ~on 1esin Grounclwat.-Modal
CMW-lA
5,000
I • Obs erval --calllml tton
5C1!11~Jio 2 S1:00a rl o A
4,500
4,000 ~ \ ...
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0 -. ... --. " 2000 2005 2010 2015 2020 2025 2030 2035 2C)4(J 200 2050 ~
1-Dec-15 83-2 GEOSCIENCE SUpport Services, Inc.
Valley District/West Vdey/Goodrich/City of Rillito/City of Colton
Preclcllve Model Runs of the Rlalm-colton llaY1 6rou~ter Model
PW-Z
~0~00 r;==============================~--------------------~~~--~=---~ ~~. "--""
18,000
16,000
14,000
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l i 12,000
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8 I 8,000
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4,000
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2000 2005 2010 2015 2020
1-Doc-l.S
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2025 2030 2035 2040 2045 2050
GEOSCIENCE Support Servt-, Inc.
Model LiiYe,. 3
2040 205 0
GEOSCIENCE Support Setvlces, Inc.
r i:.~ .. . . . . .
•
2030 2035 2040 2045 2050
GEOSOENCE Support Servlc:~~~, Inc.
V811ey Dlstrkt/West v.rley/Goodrkh/City of RJ.Ito/City tA Colton
Predlc1ive Model Runs of the Rllllto<olton hSin Groundwater Model
EMW-OSA
1,000 rr===========================:::;-----------:-~:--",~:-----.:::::::--1
• Observed --cali brat ion . r·· . -~, . . " --Scenario 2 Scenario 4 ~. -·-• • -\,
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
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21
1-oec-lS 83-6 GEOSCIENCE Support Services, Inc.
V•lley District/West Valley/Goodrich/City of Rialto/City of Colton
Predlcti,. Model Runs of the Rialto<olton Basin GroundWllter MocW
~
l g ·;
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900
800
700
600
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300
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--C'.lloblilliOn
-ScEn.oo4
0 +-------~------~-------~
2000 2005 2010 2015 2020
EMW-058
r
2025 2030 2035
63-7
Model layer· 5.
2040 2045
...
•:•
2050
GEOSCIENa Support Services, Inc.
Valley District/West Va11ey/Goodridl/C1ty of Rlillto/City of Colton
I'Qdlttl,.. Model Runs of the Rialto-Colton llllsin Groundw•'-Mode l
EMW-OSC
1,000
• O~M\4:1 --Cillibratlcn ~:\. Sc:an.u iO l Scenana 4
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 aJ w
·1·D<!c>U B3-8 GEOSCIENCE Support Services, Inc.
Valier District/West V..,/Goodlich/CJtv of RWto/City of Colton
Predldive Model Runs of tile Rialto-Colton a.s1n 6round-te r Model
EMW-04A
1,000 _, ~
. I • Ob$eNed --Ca~l»i!tTo n r-~~(!).· ~
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400
300
200
100
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2030 2035
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2040 2045
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:I
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2050 ~
GEOSOENC£ Support Services, Int.
Vellev District/West Vdey/Goodrtch/City of llilolto/C"rty of Colton
Predictive Model Runs of the R;.lto-tolton llesin Groundwater MOIW
EMW-04C
1,000 r;::=======================::;-------------:-:--[r-;:=-',-"'"""o::::::::---, ~· Oine"rved --CahllrllliOn •
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900
800
700 ...
l
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400
300
200
100
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2000 2005 2010 201 5
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2020 2025 2030 2035
~··. ·.
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2040 2045 2050
GEOSCIENCE Support Services, Inc.
Model Layer 3
2040 2045
~
1
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5C
2050 ~
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2035 2040 2050
Valley District/West Vdey/Goodrlch/City of Rialto/City of Colton
Predictive Model Runs of the Rlalto<olton h$i1t Groundw.ter Model
PW-BC, PW-80 and PW-BE
l-Dec-15
--Calibration
Scenario 4
-2015 2020
-.--.,..---
2025 2030 2035
83-14
Model Layer 6
2040 2045
~
'i
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2050 e
GEOSCIENCE Support SeMen, IIIC.
Valley District/West V*t/Goo6ricti/City of Rialto/City of eotta.
Preclctiw! Model Runs of the R~o-Colton lllllin Grounctw.ter Model
WVWD-22 (lntermed late Aquifer)
900
800
700
..Jj
l c
.2
i
600
s c: 500
8
I ..c:
t! :.
400
300 I
200
100 '
0
2000 2005 2010 2015 2020 2025 2030
93-15
2035 2040 2045 2050
GEOSCENCE Support Servtcas, Inc.
V .. ley District/West Vaky/Goodtf'odt/ctty Df Rl .. to/City rtl Colton
Predlcltve Model Runs vittle Rlalto<olton Bnin Groundwater Model
...
l c
0 ~
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8
~
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900
• 800 •• •
700
600
500
400
300
200
100
0
2000 2005 2010 2015 2020 2025
83-16
2030 2035
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.. , ~·
~
1
:I a.
~·
2040 2045 2050 ~
GEOSCIENCE Support Servlcles, Inc.
Vlllley District/West V*Y/Goodttich/Oty of Rillito/City of Calto-
Ptedictiwe Model Runs of die Rialto-colton _., Ciroumtw.ter Model
70
l c 60 t
i
<> 50 8
I ::c 40
I!
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30
20
10
0
2000
1-Deo-15
2005 2010 2015
EMW-03A
Model Lllyer 3
2020 2025 2030 2035 2040 2045 2050
83-17 CiEOSCIENCE Support Services, Inc.
V-'ley District/West Vdey/Gooclltch/Oty of Ri81to/C"rty of Colton
Predic:tive Model Runs of the Rialto-Colton Basin Grounclw.ter Model
EMW-038
100
• OIJi~f\I Cd --CahoollOn
--Scl!narl o 2 StClnijtiC ~
80
70 • ... MotteJuve~ s l
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30
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0 • -;c I I I I ·-· 2000 2005 2010 2015 2020 "2 Cfl5 20 30 2035 204 0 2045 1.050 Gl w
1-0eo-15 8 3-18 GEOSOENC£ SUpport s.rvi<es, Inc.
Valley Dislrict/West Va lley/Gooclrk h/City af Rlaii>D/Clty af Colton
Preclttlve Model Run5 of the Rialto-Colton linin Groundwate Model
EMW-03C
100
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--ScE1'1ariCJ2 SWII~I'\0 -1 ~~:(ef :,
90 . . .
80 ~ \
70
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30
20
10 :
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 OJ w
l ·l)cc.U 83-19 GEOSCIENCE Support Services, Inc.
v.aey District/West Valley/G<XMirim/City of Rialto/City of Colton
Predictive Model Runs of the lllelto-Colton 8nin Groundwater Model
EPA-MW9A
1,000 r.:===============;----------.}r..J.~:"-'.-:-........ -. --.::::::::-~~
• Ob:seTVed --Ca li bration -
I '• . ·,
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800
700
l c 600 0 ~ l! .. c ~ 500 c
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300
200
100
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1-Dec-15
2005 2010
• •
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83-20
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~ ~···.;
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2040 2045
'\"
' ' '\
20 50
GEOSCIENCE Support Services, Inc.
Valley District/West Vlky/Goodtldt/ctty of Rialto/City of Colton
Predidiw Model Runs of tile Rialto-Colton Basii!Groundwlt.r Model
EPA-MW98
1,000
• Ob~efved --Ci!Ubn!li041 r ~"J .. '"-~ --51: nari'O ~ SteRllrl.u 4
L .. ·• ' 900 • i¥·
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400
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300
200
100
,. ,
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0 • iC
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 m w
l·J)K,.U B3-21 GEOSCENCE Support Ser.rl-, Inc.
Valey District/West Valey/Goodrlch/City ol R",..to/Oty ol Colton
Predidive Model Runs of the RJ.fto.Colton Basin Groundwlltar Model
PW-SA and PW-SB
1,000
900
800
700
_.
l
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i
600
~ 500
8
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400
a..
300
200
100
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2000
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2005 2010
--Cil ll br;t!i1:Ji'l
St~narlo..ot
2015 2020 20Z5
83-22
MocM!I Lryl!t 5
2030 2035 204 0 2045
GEOSCJENC£ SUpport Services, Int.
V.rley Dlstrkt/West V•lley/6oodrich/Cty of .u.IIG/City of Coltc.
Predidive Mod4ll Runs of the Rialto<olton IIMin Grounctw.t.r MocW
PW·SC, PW-50 and PW-SE
1,000
• •
• •
2010
l<Oi!c·l:S
-Ca lrnrutlon
S~riariiHI
2015 2020 2025 2030
63-23
flotod ell..lyu6
2035 2040 2045
,.
"D
1 :::s
Q,
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Valley District/West Vdey/Gooclrh:h/Oty ol Rialto/City ol Colton
PNclic:tlve Moclellluns of the Rialto-Colton Basin Grounc!Mter Model
900
800
700
_.
l .,
!-600
• ::
§
c 500
8 .. ..
5
l: ::: :.
400
300
200
100 ~ 0 · . -,
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83-24
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2040 2045
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"CC
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:I
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205 0 fl
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Valley District/West Valley/Goodrich/City of lllalla/City of Colt011
Preclictive Model Runs of tile Rlalm-Ctllton lain 6roundwatet...,..
EMW-018
1,000
• O~"'"'ed --Cal lbriltl(ln
--5(.()f\ill l0 1 S,C~IUrlQ ~
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"800
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200
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2000 2005 2010 2015 2020 2025 20 30 2035 2040 2050 ~
H l !!!:-1!. Bl-25 GEOSCIENCE Support Servlc:Bo Inc.
!i1 [ \· .. . . -·· •• +
b
... · ' ...
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.-··
2040 2050
1-Dec-15 83-26 GEOSCENCE Support Servlcti, Inc.
Valley District/West Vdey/Goodrlch/City of RWto/Crty of Colton
Predictive Model Runs of tile Rilllto<olton Basin Grounctw.ter Model
1,000
900
800
700 ...
l
i .. s
600
1: • .. 500 1: 0 u
I
.R ..c: .. 400
;;;
II.
300
200
100
0
2000
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~anol
.. ere;::;:
--Ca libr.rtl!l'll
SC~norio II
1S/SW-3A7
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2005 2010 20 15 2020 2025
B:J.-27
2030 2035
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2040 2045
,..
"g
1 t
205 0 ~
GEOSOENCI Support Servlcm, Inc.
Valley Dlstritt/West Vllley/Goodl1ch/City of RWto/City of Colton
Predictive Model Runs of the Rlaho-Colton Basin Groundwloter Model
Rialto-6
1,000 rr================;------------fri....--:,:--"""""::--"""1
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900
800
700 ...
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400
300
200
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100
•
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
1-Dec-15 83-28 GEOSCIENCE SUpport Services, Inc.
Valley District/West v.a.y/6oodrld!/City of lliafto/City of Colton
Predicdw! Model Runs of the Rialto-Colton a-In Grounctw.ter Model
....
l c
!
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c3
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1:! .. Q,
PW-9A, PW-98 and PW-9C
900
1,000 rr:====================:::;----------r.=--~:----:~::---,
• O bs~ryed C~hbr 1 1 to" 1.:
"""'"• ' '"~'"" '-I 3'-.. ·.. .
800
700
600
•
500
400
•
300
I . '
200
100
I :~
0
2000 2005 2010 2015 2020 2025
83·29
2030 2035
o . . \ ... ..
2040 2045 2050
Ci[QSCJE NC£ S~~pport $ervi<B I, lllc;.
Vdey District/West Vallrt/Goodlldt/CiAy of Rialto/Cily of Colton
Predictive Model Runs of~ Rialto-Colton Basin Groundwater Model
PW-90, PW-9E and PW-96
1,000 rr=========================~-----------;::;;-:;;; .... ;:--,--,
--C•IIbratlan ~ ............_ ~ Sce n~rfo •\ I..Y: ·~ ""'
... ..... ..
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• ---
2015 2020 2025 2030 2035 2040 2045 2050
l..()ec;-15 83-30 GEOSCIENCE Support Services, Inc.
Vder District/West Vaktr/Goodtrith/City of ll"'*o/Oty of Colton
Predidive Model Runs of the RIAitO<Colton Basin Groundwfter Model
PW-lOA and PW-108
1,000
900
800
700
..J
l c t 600
8 c: 500
8
j
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400
300
200
100
0
2000
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--5ts;nar lo l
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•
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So!;en~r1o.;
2015 2020 2025 2030 2035
83-31
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Valley District/WISt V811ey/Goodrlch/City of Ri .. to/City of Colton
Predictive Model Runs ofthe Rlalto<olton Basin Groundw8t.r Model
PW-12A and PW-128
1,000 ~r================::;----------fr.f-.;';::-:-. --.:-.....:;:::-:::--:-. 1·
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--scenario 2 -Scenario 4 ... · ""'
900
800
700 ...
l
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.. .. c: 500
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l! I! .e .c ~ :.
400
300
200
100 --
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l-Deo-15
2025 2030
83-32
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~--·--·
20 35 2040 2045
'
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2050
GEOSCIENCE Support Services, Int.
V•lley District/West Vfllley/Giooclrich/City af Rallo/Clty af Colton
Preddive MocW Runs of the IWto-colton Basin Ground-ter Model
EPA-MPBA through SC
...
l
i
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~
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..5I
fi
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100
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-SCB n;~rl a:l
90
80
70
60
so
40
30
20
10
0 +-------,-------,_--.. ~·~
2000 2005 2010 2015
SCI!,.Qrll!<lil
~
2020
I
2025 203 0
. --
2035
Modtl uyer 5
2040 2045
~
1
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205 0 ~
GEOSCIENCE Support Servlc:m, lnc.
V-'ley DistfiCt/West V*'t/Goo6tid'I/City of Rialto/City of Colton
Precl1ctlve Model Runs of the Rielto-colton linin Groundwater Model
EPA-MP8D and IE
100
90
80
70
~
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50
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40
30
20
10
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2000
1-Deo-15
• 0bsl!fVI!d
--Sconlltl(J2_
••••
--Cali tR it&n
Sol:enil rfllil
2005 2010 2015 2020 2025
83-34
Model Layer 6
-.---..-----.·->
2030 2035 2040 2045 2050
GEOSCIENCE Support SerYicles, Inc.
Valley District/West Valley/Goodrlch/Crty of llielto/City of Colton
Predictive Model Runs of the Rialto-Colton Basin Groundwater Model
PW-11A and PW-llB
~~r.=========================~------------~--?.1~--~~~ •· QU~e~rved --GIJlliratJon ...-·· ,--f.l ~··. ~ '~··. . ~ --~oen~no z SC!1<1ilono-!\ .__.. ._. . . ...
~ ·~ ...
900
~ 800 CJ ... •
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700 ...
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c 600 .2
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8
500
~
.I .II:
400 •
~ :.
300
200
100
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0 / -~
~ ---=-----
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
GEOSCIENCE Support Servl-. Inc.
Vel ley District/West Valley/Goodrich/City of Rialto/City of Colton
Predictive MocMI Runs of the Rilli to-Colton Basin Groundwwter Model
PW-11C, PW-110 and PW-UE
1,000
9001
800
700 ...
l .: 600 !
§
500 .... ~
I
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400
300
200
100
0
2000
1-Dec:-15
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2005 2010
--Cal ibration
· -· Scenario 4
--
I
2015 2020 2025
83-36
2030
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~ .........:.. · ... \ ' " ..
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2035 2040 2045 2050
GEOSCIENCE Support Servk:es, lftc.
Valley District/West Valey/Goodridi/City of Rillito/City of COlton
Preclcllve Model Runs of the Rialto-COlton IIBsin Groundwater Model
EPA-MP7A through 7C
100
9JI • Observed --calibration
I -Scenario2 Scenario 4
80
70
.....
l
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60
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1'1 50 &::
8
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40
i
30
20
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I•Dec-15 83-37
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,.
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2035 2040 2045 2050 m w
GEOSaENCE Support ServlCIII, Inc.
Valley Dlstrlct/WIItt Valley/Goodridi/City of Rialto/City of Colton
Predictiwe Model Runs of the Rialto-Colton Basin Groundw.ter Model
EPA·MP7D and 7E
100
90
80
70 ...
l
t! 60 !
I 50
8
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40
30
20
10
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2000
l·Dec-15
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Scenario4
2005 2010 2015 2020 2025
83-38
Model Layer 6
2030 2035 2040 2045
GEOSCIENCE SUpport Servic:es, lllc.
Valley District/West V*r/Goodtktt/City of Rialto/City of Colt•
Ptedictive Model Runs afthe Rillto<olton a.ln Groundwater Model
...
l c
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8
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1,000 r;:::::==========================::;---------r:=l"::-------:;;;::::--, --CIIIbr~\IOn fl ""---~
900
800
700
600
500
400
300
200
100
0
2000
• O~rvt>d
-SC'@Iiai'ICI 2
2005 2010 2015
., .. " ~' ~enarJo4 • • '.
2020 2025 2030 2035
Model t..ver S
2040 2045
"
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~
1
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2050 ~
GEOSCENCE Support Servlcm, Inc.
Vllley Dlstr1ct/West vaa.,/GooOrldi/Clty of Rialto/City of Colton
Ptecl1ctlve Model Runs of the Rlalto<oftan Basirl Grounclwa1er Model
CPW-16E through 16G
1,000
900
I_ I
800
700
~
l c
I 600
21 c 500
8
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400
300
200
100
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2000
1-Dec-15
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2005 2010
--Calibration
-Scenario 4
2015 2020
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-------------2025 2030 2035 2040 2045 2050
83-40 GEOSCIENCE SUpport Services, Inc.
Valley Distrkt/West Valley/G4odlich/Crty of lli*o/City of Colton
Preclldlve Model Rum of the Rialto-Colton IIMin Groundwater Madel
..... l
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8
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PW-13A and PW-138
1001.===========================~------------------~~~~~--~ --C~II braiK!n / I [:. -~ ~
90
80
70
60
so
40
30
20
10 ·~
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2000
• OIJ.s.erv ed
SreoarlD 3.
2005 2010 2015
5eN 'IIriO<'l ~ •:.. "'
~~~.:
2020 2025 2030 2035 2040 2045
~
'0
1
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2050 ~
GEOSOINCE Support ServlCK, Inc.
Valley District/West Valley/Goodrtch/City of Rialto/Oty cl Colton
Predictive Model RIM'IS cl the Riaho-Colton Basin Gtoundwllt.r Model
PW-148 and PW-14C
lOO r.===========================~----------------------------~
...
l c 0
;:I
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8
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90
80
70
60
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40
30
20
10
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Scenario 4
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
f
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1-Deo-15 83-42 GEOSOENCE SUpport Services, Inc.
Valley District/West Valley/Goodrich/City ofRialto/Crty of Colton
Predictive Model Runs of the Rialto-Cotton llesin Groundwater MocJ.I
CPW-17A and CPW-178
2030 2035
.. \ . .
··o .:.
Mod~l Laye t !
2040 2045
,..
'a
1
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2050 ~
GEOSOENCE Support Servlc:ll!s, Inc.
Valley Distrkt/West Valley/Goodridt/City of Rialto/City of Colton
Predldlve Model Runs of the Rllllto<olton Basin Groundwater Model
CPW-17C and CPW-170
100 ~,===========================~------------------~"~~~--~
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90
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r: 0 60
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0 u
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I! ~ 40 ·-·
~ .. Q,
30
20
10
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2000 2005 2010 2015 2020 2025 2030 20 35 2040 2045 2050
1-Dec-15 GEOSCIENCE Support Senrices, Inc.
V..., Dlstrtct/West V...,/6oodrid'o/Cit.y of I!Wto/Oty of ColtGII
Predidift Model Runs of the Ria lto<olton ._.,Groundwater McNW
Colton-17
100
• Observed --calibration / ·, __ _1;;~ ~
: .,_.,..,
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90 '~. ·. ,,"
80 ~~ ... \ ........... C>
70
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40
30
20
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0 -~. ·--· .. ~-I 5( I .,
2000 200S 2010 20 15 2020 2025 2030 2035 2040 2045 2050 01 w
l ·Dec>-15 GEOSCIENCE Support ServiCIIS, Inc.
v•ley District/West v .. ey/Goodrtch/Cicy of .u.lto/City of Colton
Predictive Model Runs of the IIW1D-Colton BasinG~ Model
Colton-IS
100 ~============================~--------------~--~~~~~--~
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~-
2015 2020 2025 2030 2035 2040 2045 2050
f
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1-Dee-15 63-46 GfOSCIENCE SUpport Services, Inc.
Valley District/West V*'t/Goodridt/CJty of Rialto/City of Cotton
Predictive Model Runs of the Ri81to-Colton Basle Ground-Model
1,000
• Ob~erv~ --Call br a £Jan
900
S«ln~rui l se;~no!ltta.q
800
700
....
l
I 600
s • 1: • .. 500 1: 0
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I
.Iii 400 .I: u
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300
200
100
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2000 2005 2010 2015 202 0
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V .. ley District/West V .. ey/Goodrtch/Oty of Rialto/City of Colton
Predictive Model Runs of the Rillito-Colton Basin Gnlunchmer Model
N-35
2,000 r;::===============:::;----------:--c=r-;;;;:::--"::---,
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1-Dec-15 83-50 GEOSCIENCE SUpport 5ent1ces, Inc.
Valley District/West Valley/Goodrich/City of Rialto/City of Colton
Predktive Model Runs of the Rlalto-Colton Basin Groundwater Model
N-3D
2,000
1,800
1,600
1,400
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1,200
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t-Grc-15 E3-51 GEOSCIENCE Support Sennoes, Inc.
Vlllley Distr"oct/West Valley/Gooclridi/City of Rialto/City of Colton
PnoclictWe Model Runs of the R181to-Coltcro Basin Groundwltar Model
N-85
1,000
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1-Dec-15 83-52 GEOSCIENCE Support Services. Inc.
Valley District/West Vd.y/Goodridl/aty of Rialto/C"rty of Cotten
Precldive Model Runs of the Rillito-Colton Basin Grou ndwllter Model
N-80
l,JJilO
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Pnldlctlve Model Runs of the Rlalto-<oiton Basin GR11u1dw.ter Model
N-l Z
1,000 ··--8 ~ • Observed --Calibration l Jj". "' ............. --Scenario 2. Scenario 4 ~ t?>··-. ' '• 900 . . . ' . '
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Valley Distritt/West Vdey/Goodrich/Crty of Rialto/City of Colton
Preclctlw! Model Runs of the Rialto-Colton Bniol Groundw•tet Model
M-3-Zone 1 through Zone 4
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2010 2015 2020 2025 2030 20 35 2040 2045 2050
1-DK-B 8 3-55 GEOSCIENCE Support Servl-. Inc.
Valley District/West V.Uey/Gooclrk:h/Oty of Rialto/City ol Colton
Predic;tlve Model Runs ol the Rialto-Colton Basin Grounclw.1er Model
M-3-ZOne 5 through Zone 7
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Valley District/West Vdftv/Goodrido/oty of Rlallo/City of Colton
Predittlve Model RuM of tile Rialto-Colton ._., &roundwater Model
Rialto-3
100
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APPENDIX 84
Chemographs of Perchlorate Concentrations for Selected Wells
in the Rialto-Colton Basin for Scenarios 2 and 4 with Mass Loading
GEOSCIENCE
~
Valley District/West Vatll!v/Goodrldi/Oty of RR!to/City of Colton
Predlcllve Model Runs of the Rillito-Colton llaYI Groundwater Model
CMW-ZA
S,OOOr,===========================~~--------------------------~
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4,500
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4,000
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2030 2035 2040 2045
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2050
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V .. ley Dis1rlct/West V .. ley/Goodrlch/City of RWto/City of Calion
Predlct1ve Model Runs of the Rillito-Colton IMito Groundwaw Model
CMW-lA
5,000 rr===========================:;--------------,
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Vlllil!y Distric:t/West V...,/Goodtidi/City of Rialto/City of Colton
PredctJve Modet Runs of tile Rlalto-Qolton linin Groundwater Model
PW-Z
20,000 r.================::::::;----------:"-~~:--,:--1
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I'Nclicthe Model Runs of tiM Rialto-Colton Basin Grounctw.tar Model
1,000
• Obt@'l"~i!d --C~Ii brJtlio n
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700
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V..., District/West Y...,/Goodrfch/City olllillltD/Clty of Coltooo
PreclidMI Model Runs of tile Rillito-Colton _., ~roundwater Model
N-25
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Valley Dlttrkt/West Va lley/Goodt'lcti/Cit'f af Rialto/City ol Colton
Precroctlve Model Runs aft he Rillito-Colton Basin GtCIUI!dwat« Model
EMW-OSA
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1-Dec-15 84-6 GEOSCIE NCE SUpport Services, Inc.
Valley District/West Valley/Go4dlidt/City of Rlallo/Clty of Coltaot
Predlc:tlve Model Runs of the Rlalto<oltc:on lain &roundwater Model
• Observed -Calibration
EMW-058
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900
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2040 2045
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2050 I!
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Valley OlsCrlct/West Vlley/6ooclrlch/City of flY Ito/City of Colton
Predictive Model Runs of the Rillito-Colton lasln Groundwater Mod•l
EMW-OSC
1,000 r;::=====================:=:;---------r.l':::---c:::::::-1
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2000 2005 2010 2015 2020 ~25 2030 2035
84-8 GEOSOINCE Support s.nrices, Inc.
Valley District/West Vallliy/Goodiidi/City of Rialto/City of Colton
Predidlve Model Runs of the Rialto-Colton Basill6found-ter Model
EMW-04A
~OOOr.===========================~--------------• ObseNed -Calibration
900
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800
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2040
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V .. ey Dlstltct/West Valley/Goodrich/City of Rillito/City f1l Colton
Predictive Model Runs of the Rilllto-(olton Basin Grounclwatet' Model
EMW-048
1,000 .. Observed --C;,Il br;otion
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700
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Vllley Distrkf/West V~/Goodtldt/Oty of I!Wto/C!ty of Colton
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700 ...
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v•~ey Dislrta/West V•lley/Goocttdi/City af Rlalto/Oty o1 Colton
Predlctlw! Model Runs of tfle R._lto-Colton Basin Groundwater Model
PW-BA
1,000 r;:::::=:=:=======================::;---------"TI,::--~:-1
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900
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800
700 ...
l
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400
300
200
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2000 2005 2010 2015 2020 2025
84-12
2030 2035
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2040 2045
f ~ a. s:c·
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GEOSOENCE Support Senti-, Inc.
Valley District/West Valll!y/Goodtidt/Clty of lllalto/Clty of Colt011
Predictive Model Rvns of the Rialto-colton Basin 6rouncl-ter Model
PW-8B
1'000 r;::=.=o:bs:e:rv:e:d=======c:a:ll:br:at:lo=n====::;------------~---~-E'l~cf""'"":"-.__~· --....::;::::-:----,
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Vlllley Distrld/West Valey/Gooclrfch/Clty of Rialto/City of Colton
Predictive Model Runs of the RW1a-cotton Bnin Grounctw.ter Model
PW-8C, PW-80 and PW-8E
1,000 r.===================~---------r.=r,~-,:--l
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1-Dec-15 84-14 GEOSCIENCE Support 5efvlces, Inc.
Valley DistriWWest V....,/Goodikh/City of Rialto/City of Cohan
Preclttlve Model Runs of tM Rialto-Colton lla5in 6rounctw.~ Model
WVW[)-22 (Intermediate Aquifer)
1,000 r.::===============::::;--------~-"F.""':--o:::::::::---,
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800
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2030 2035 2040 2045 2050 i'
GEOSOENCE Support Servlml. Inc.
V.U., Dlstt1ct/West V..J.y/Goodt'idi/Cty of Rlalto/Cty of Colton
Predictive Model RuM of the Rbllto-Colton Basin Groundwater Model
WVWD-22 (Upper Regional Aquifer)
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Valley Dis1rict/West Valley/Goodrich/City of Rialto/City of Colton
Precldlve Model Runs of lhe Rlllto-Calton Basin Groundwatel Model
EMW-03A
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1-Deo-15 84-17 GEOSCIENCE Support Servlc., Inc.
Valley Dlstrk1/West Valley/Gooclrich/aty of Rialto/City of~
Predictive Model Runs of the RJelto-Colton Basin Groundwater Model
EMW-038
100 ~============================~------------------~"~--"~-, lr .r;::!
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v.-ey Dls1rlct/West V....,/Goodrlch/Crty of lli*o/City af Colta.
Preclictiwe Model Runs of the Rialto-CDiton lla5in Groundwater Model
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84-19 GEOSCIENCE Support Servlcm, Inc.
V .. ley District/West Vdey/Goodr1d!/City of Rialto{Oty of Colton
Ptedlctlve Model Runs of the Ralto-Colton Basltl Grounctw.ter Model
EPA-MW9A
1,000 r;::================:;-----------Fi"""'.:--"""'=--,
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700
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Valley District/West V•lley/Goodrlch/City afm.lto/City of Colta.
l'rl!Cic:thoe Model Runs of the R;.lto<oltcn Basift 6roundw•wr Model
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1-Dec-15 84-21 GEOSQENC£ SUpport Services, Inc.
Vdey District/West Vaky/Goodtrldl/aty of ~Ito/City of Colton
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2005 2010 2015 2020 2025 2030
84-23
2035
Model Layer 6
2040 2045
.,
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•.•
~
-~I
2050 ~
GEOSCIENCE Support Servlc:B, Inc.
Vllley District/West V.ley/Goodridy'City of Rialto/City of Colton
Pndittive Model Runs of the Rillito-Colton BIISin Groundwam Model
...
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900
700
600
500
400
300
200
100
0
2000 2005 2010 2015 2020 2025 2030
'~ o. ·. ·""',
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1-0eo-15 84-24 GEOSCIENCE SUpport Setvlces, Inc.
V .. ley Dis1rlct/West Valley/Goodrich/City of .U.to/City of Colton
Predictille Model Runs of tile RWto-Colton Basin Gtounctwaw MocMI
...
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600
500
400
300
200
100
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2000 2005 2010 2015 2020 20 25 2030 2035 2040 2045
1-Del>15 GEOSCIENtE Support Services, Inc.
v.lley District/West v.,~r/Goodridt/CIIty of Rialto/oty of Colton
Predictive Model Runs of the RJ.Ito.Colton a.sin GroundM1er Model
1S/SW-3AS and 15/5W-3A6
1,000 rr:::=::;::===========::::::=======::;----------r.=r--..::.::::--~-:--1
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400
300
200 •
100
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2000 2005 2010 2015 2020 2CI1S 2030 2035 2040 2045 2050
1-Dec-1 5 84-26 GEOSCIENCE Su pport Senft eM, Inc.
Valley District/West Valley/Goodrich/City of Rlalla/City of Colton
Predlclhe Model Runs of the R181to-<olton Ban Groundwlter Model
1S/SW-3A7
1,000 r.================:;----------:--""P.f~::---.;;:::::::---,
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 ~
1-Deo-15 84-27 GEOSOENCE Support ServlCI!s, Inc.
v.-.., Disttlct/West val!.y/GooclrirJo/Oty of Rillito/City o1 Colton
Precfoctiw Model Runs of the RWto<olton Bltsin Groundwater Model
Rlalto-6
l,~ Tr=.==o==~=e=N=ed===========_=_=_==c a=ll=b=ra=ti=on=========o-----------------------.-----~~.:~.~,,_~~----~~~-----_9
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900
800
700
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200
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1-Deo-15
2005 2010 2015 2020 2025 2030 2035
84-28
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204 0 2045 2050 i!
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Valley District/West V•lley/Goo<*ich/City ollllalto/City d Colt011
Predlcltve Model R11ns olthe Rlalto-<oiton 8asill Grounctw.let Model
PW-9A, PW-98 and PW-9C
LOOO r.===========================~---------------r.~~--~--~ ; .. .E; "---. "'-...... • Observed -Calibration
900
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800
700 ...
l
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300
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2030 2035
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V1lley District/West Vllley/Goodl'ich/City of Rlalto/Oty of Colton
Predidive Modellluns of the RWto<olton Blsln Ground-ter Model
PW-90, PW-9E and PW-9G
1,000 r;:::============================:;---------c=;-~-----:::;::::--....,...,
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900
800
700
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300
200
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1-l)ec;-15
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2015 2020 2025 2030 2035
84-30
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2040 2045
GEOSCII'NCE Support SeMces, Ill(;.
Valey District/West V*'t/Goodtich/City of Rlalto/aty of Cotton
Preclcllve Model Runs of the RlaltcH:dton lasln Eifounclwat.r Model
700
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l
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600
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300
200
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2000 2005 2010 2015
1-tleo-15
PW-lOA and PW-108
2020 2025 203 0 20 35
64-31
Model Layer 5
2040 2045
~
1
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2050 i!
GEOSCIENCE Support Servlcl!s, Inc.
v.lley Distrfct/West V*'t/Goodttldi/Oty of Rialto/City of Colton
Ptedlctlve Model Runs of the Rlalto<olton Basin Grounctw.ter Model
PW-12A and PW-128
1,000 r.::::=======:=================;------------r--r,;= __ J1Jf""~-...,......_,,--:"l
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400
300
200
100
0 -~----:---__ ···-2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
1-0ee-15 84-32 GEOSOENCE Support Sarvlcws, Inc.
Valley District/West Valley/Goodrtch/Oty of llilllto/City of Cotton
Predictive Model Runs of the Rialto-Colton Basin Gtoundwlter Model
EPA-MPSA through BC
100~.=============================~------------~~~~~~~--~ • Observed Calibration / ' f.: ~ .
90
80
70
30
20
10
1-Geo-15
0
2000
l ··-· ~ Scenario 2 (Mass Added) Scenario 4 (Mass Added) ':, ,..,J · • . '\
.......... 2005 2010 2015 2020 2025 2030
84-33
. ·. " . ' . ·.
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2035 2040 2045 2050
GEOSOENCE Support Senllcll, Inc.
Valley District/West Valley/Goodrlch/Oty of Rlalto/Oty of Colton
Predictive Model Runs of the R'-'to-Colton Basin 6nlUIICiw8ter Model
EPA-MPBD and BE
100 r.=============================~------------------~"--~~--~
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GEOSCIENCE SUpport SeMc:es, Inc.
Valley Distrkt/West Valley/Gclodrkh/City of RiiiiiD/Clty af Colton
Predldive Modelllllns of die Rlalto<Diton Basin Qoundwllter Model
PW-11A and PW-118
1,000 r.===============~--------,....-~"~----::::::::::-1
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2005 2010 2015 2020 2025 2030 203 5 2040 2045 2050
GEOSOENCE Support Servl-,lne.
V .. ley DlstrlctJWest V.ley/Goodrlch/City of Rielto/City al Colton
Predictive Model Runs a/the Rialto-Colton Basin G~er Model
...
l
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600
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1-Dec-15 B4-36 GEOSCIENCE SUpport SeMces, Inc.
Valey Dlstrict/We$t Valey/Goodrlth/City of Rialto/City ol Colton
Predidiw Model Runs olIN Rialto-Colton a.sioo GroundWIIter Model
~
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80
70
60
50
40
30
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1-Dee-15 84-37 GEOSCIENCE Support s ,rvl-,lnc.
V...., District/West Va~/Goodtfdt/Oity of Rialto/City of Colton
Predictive Model Runs of the Rillito-Colton Basin Gtounclw8tet" Model
EPA-MP7D and 7E
WOr,=============================~------------~~~~~~~--~
I • Observed --Calibration I . ,·-··~.:·-~ ~
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30
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 20 50 I!
1-o-15 G!OSOENCE SUppor1 Senllc:es, Inc.
V~ District/West V,.,/GDodlkh/City of Rlallo/Clty of Colton
Precllctlw M*l Runs of the Rialto-Colton IIMin Grounctw.ter Model
CPW-16A through 160
1,000 r.===============::::::;---------c;:--:--~;:::---::::::::::---,
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800
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300
200
100
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 20 50
84-39 GEOSCIENCE Support Servl~ 111'-
V .. ley District/West V*'t/Goodridi/City of Rillto/City of Collen
PredlctiWI Model Runs of the RJMto.Colton llasln Grounctw.t.r Model
CPW-16E through 16G
1,ooo r.:==========================:;--------rJ:·r:::~. ~··,~,-.. __,,::::::::-"-.....-~.
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200
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
1-Dec-15 GEOSCIENCE $upp«t Services, In(.
Valley District/West V*'t/Goodtrich/Oty af ~/City of Colt 011
Precldlve Model Runs of tt. Rialto-Colton ll8sin Groundwater Model
PW-13A and PW-138
WOr.=============================~----------------f.1~~~~--~ • Observed --Calibration ' · r ',..._"" ~ S<~•rio 2 {M~• Ad"') "'"'rio' {M~ Addod{ ~ ', • • "'·-_'
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VII ley District/West V .. ey/Gooclrich/City of Rialto/City of COlton
Predictive Model Runs oftfle Rlllto-Colton a.sin Gtoundweter Model
PW-148 and PW-14C
100 r.=============================~------------------------------~
90
80
70
30
20 --
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Model Layer 5
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045
1-Dec-15 84-42 GEOSCIENCE SuppGtt SeMc:es, Inc.
V•lley District/West Vtlky/Goodrlda/Oty of lli-'to/City of ColtCII'I
Ptedictive Model Runs of the .U.Ito<olton 88sin Groundw•ter Model
~
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70
60
50
40
30
20
10
0 • •••••
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 ~
84-43 GEOSCIENCE Support SeNtmr,lnc.
VIII ley District/West V .. ey/Goodrldi/Oty of Rl81to/City of Colton
Predictlw Model Runs af the Rllolto-Colton Basin Gfounclw8ter Model
CPW-17Cand CPW-170
lOO t===========================~~----------~--~~~~~--~ • Observed --Calibration · ,__f.i "-...... ~
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045
6EOSOENC1: Support Servlc.s, Inc.
Valey District/West Valtt!y/Goodt"ldi/Oty of Rialto/City of Colton
Pn!dctlve Model Runs of the lllalto<olton linin Groundwater Model
.....
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60
50
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 ~
84-45 GEOSCENCE Support Services, Inc.
Valley Dlstrict/WestVIIIey/Goodric:h/C"rty ol RilltD/City of Colton
Predictive Model Runs of the Rbllto-Colton Basin Groundwatar Model
Colton-15
100 r.===========================~------------~-r.~~--~--~ • Observed --Calibration .· rJ-• ' ·.'-...,_ ~ . :·. '--..;.,. -Scenario 2 (Mass Added) · Scenario 4 (Mass Added) " , • ; • , · . . '\.
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1-Dec-15 GEOSCIENCE Support Services, Inc.
Valley District/West Valley/Goodrich/City of Rlallo/City of Colton
Preclcllve MoM! Runs of the Rialto-Colton Basin Groundwater Model
...
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500
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2000 2005 2010 2015 2020 2025 2030 203 5 2040
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1-Dec-15 84-47 GEOSQlNCE Support Services, Inc.
Valley District/West V•lley/Gooclrlch/City of Rillito/City of Colton
l'redlctlw Model Runs of the Rillito-Colton Basin Grounctw.• Model
F-6
1,ooo ~r=========================:;-------~--j-·i;'i!r_ .'':--_ -_ """'=-~ • Observed --Calibration . ,----..., _
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400
300
200
100
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045
1-Dee-15 84-48 GEOSCIENCE Support Servlc:es, Inc.
V*'t District/West V .. ey/Goodrich/City of Rlab/Oty of Colton
Predlcllve Model RUM of the R181to<olton e.sln 6rounclwaur Model
1,000
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F-6AS
900
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800
700
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" "" '
. ·'· ... ..
2040 2045 2050
GEOSCENCE SUpport Servl-, Inc.
Vdey District/West Valley/Goodrich/City of Rialto/City of Colton
Predlctlw Model Runs of tM Rialto-Colton Basin Gnlundwner Model
1,400
.....
l g 1,200 s
J: .. ~ 1,000
0 u s
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84-50 GEOSCIE NC E Support Services, Inc.
Valley DistricVWest V•lley/Goodrich/Oty of Rialto/City of Colton
Preclctiwe Model Runt of the Rialto-Colton Ba*!Grounctw.ur Model
N-3D
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 !f
GEOSOENCE Support Servl-.,lnc.
Valley Dlstrkt/West Vdey/Goodrlch/ctty of Ri.,to/City af Colton
Predictive Model Runs aftfle RWto-Colton linin Groundwater Model
N-BS
1,000
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900
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 all ..
1~15 84-52 GEOSCIENCE SUpport Servic::es, Inc.
Valley District/West V .. ey/Goodrich/City of Rialto/City af Colto-
Pr.dictlve Model Runs of the Rialto-cotton .._, 6roundwllter Model
...
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800
700
600
500
400
300
200
100
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2000 2005 2010 2015 2020 2025
84-53
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2030 2035
. .. . '
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2040 2045
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GEOSCENCE SUpport Servloes, Inc.
V .. '-Y District/West v•'-v/Goodridt/atv « Rlalto/Oty «Colton
Predictive Model Runs of the R181to-Colton Basin Groundwlter Model
N-12
1,000
• Observed --calibration
900
-SCenario 2 (Mass Added) SCenario 4 (Mass Added)
800
700
....
l Model Layer 3
c 600 .S! ..
:!
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8 500 c
8
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1::: :.
400
300 • • • ,. v 200 .J' 100 \
0 /' ,. ,. ~
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2000 2005 2010 2015 2020 2025 2030 2035 2040 2045
1-Dec-15 84-54 GEOSCIENCE SUpport seMces, Inc.
Valley Dlstric:t/INest Valley/Gco6fkh/Oty of Rialto/City of Colton
Preclktlve Model Runs of the RIMto-Colton Basin Groundwater Model
M·3·Zone 1 through zone 4
1,000 rr==========================:::;--------~r:i~::--o:::.::::~-----,
• Observed --Calibration
900
--Scenario 2 {Mass Added) Scenario 4 {Mass Added)
800
700 ...
l g
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I! .. 600
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0:: 0 u
500
i
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400 ..
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300
200
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1-Dec-15 84-55
2035
Model Layer 5
2040 2045
~ ...
~·
\
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2050 CD •
GEOSCIENa Suppor1 Services, lne.
Vdey Dislrlct/West V•lley/Goodrlch/City of Rillito/City of Colton
Precl1dlw Model Runs of the lib! Ito-Colton Basin Groundwner Model
M-3-Zone 5 through Zone 7
1,ooo r.::::====================;---------""fl'-.......c-,::::---1
• Observed --Calibration r~P . ."'---.,
.,j
l c
1 8
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8
i
~ :
900
800
700
600
500
400
300
200
100
0
2000
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-Scenario 2 (Mass Added) Scenario 4 (Mass Added) ~ -~1 · · • • · '-
'-. 0 •• . ',
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2005 2010 2015
--,~--=;;;;.......=.,._ __ _
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2035
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--~~-~--\
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.--
2040
~
i a
~----sr
2045 2050 ~
GEOSCIENCE Support Servlcles, Inc:.
Va lley District/West V*f/GotxkicNCJty of 11181to/Clty of Colton
Predlcllve Model Runs of tile Rialto-Colton 8Bin Grou ndwlot er Model
Rialto-3
WO r,===========================~------------~-r,~~--"~~ + Observed --Calibration
90
--Scenario 2 (Mass Added) Scenario 4 (Mass Added)
80
70 ...
l Model Layers Sand 6
l 60 ..
t! .. I: .. .. 50 I:
8
I
.R 40 .t. ~
•
• Q, • •
30
20 •
10
•
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1
:II ICL
•
0 5C
2000 2005 2010 2015 2020 2025 2030 2035 204 0 2045 2050 m •
1-Dec-15 84-57 GEOSOENCE Support Services, Int.
APPENDIXCl
Model-Predicted Perchlorate Plumes In
Selected Periods for Model Layers 3, 5 and 6
Scenarios 1 and 3 without Mass Loading
GEOSCIENCE
~
' ' ' ' '
· .. <>
' ' ' ' ' ' ' ' ' . ' ' ' ' ', ' • ' ' ' .... ... .... .... .. ~\'''
,~·:.-"J ,' ', ',
' ~ ' '
", t \. ', "'' ' ' I ' ' -~ ' . ' ' ' ' ' ' <::-""
..
,''', , .... •> , ' \ '-~
'• ' ' ... ',
' . ' ' \ ' ' ' ' ' OJ<• ' ..,... ' '
' '
•
' ' ,.
MODEL-PREDICTED
I'IIIDILOIUmi PWME
IN IILECI'ID PE~IODS
fOR M0o£L LAYERJ
SCENARIO 1
wmtOUTMASS I.OADtNG -Modti-IWdi~ PM'tll1Dr11~
Con~M/1.) ..... ...... ......
Yt.lDO
-••zco --• City a( Cohan
0 Oly-'RI•Ilu
0 Otr-'O.VSWt
v ,..._,Water~ ...
"' -~-v.er co.,..,
... WlltYIIP(W.ttrDII1rlft
o --
[
.............
~U•yllnl\lryLirtdfll/
roor...aunlltrSIM
AJUI'I! C1·1
' .,
' '
' '
' ',
~'..., ' . ' .. , " '
•
' -:) J ' ' ,,.,:~ -. I ' \
' M ft \ \
',r ',',
"'1, ' '
I ' \ ' ',, ~ .... -~"
' ' ' ', ··' \
' ' ' ' ' ' ' ' ' ' .. ,.,.'~,.
, .. ,
" ' I \ \ , ' \
('I';-. ' '
., '
•
.. ,, ',', ..,, ' ' .
I ' ' \ ... .,..,.:', .-
' \ J ' \
MOOa.·PIImiCTED
PERCHIOitATE PWME
IN SELECTm PERIODS
FOR MOOEL LAYER 3
5aNARIOS
WITHOUT MASS LOADING -Modlll~lcledr.chlomt
c:etw:tMntJON(\11/lJ
'"'"'
"''""" -.... .., ., .. ... --•
0
"' ..;.
•
0
D
D
D
Otyofto1tan
Otyr:AII•IID
Ckycrlllw!r*le __ ._
-·----VQ,IVII,.,.W.~Distrtct
SJ1n1• .. ln1Gr'CUI'Idlor8asln
__ ...
Rcurect-1
MDDB..PI.EDICJtP
PEM:IIIDMIE PWME
IN SBICIID PIIUOP$
FOR-LIAYERS
SCENARIO 1
WII'HOUI' NA$5 LOADING -Madti•PfelltM4 .wthlam.
Coflmnntlamtll/l) .....
• CllyGICahan
0 Cll.yGIRIIIID
• otyoiRM!rside
·~-hllbltllwq,C:O.,.II'If
+ -.. -. --• w.tv.l.,v-.11H Dllwtl:t
....,_G~aundf;or .. sln
ol~Para:J
D SIDMhurst51t.
.. _'lor lon~Wy L>ndftl/
r.r..rlunlllrStM
Flcure C1·3
' ' 'r-.. "') ' ' ' ', -¢-,,
'< , ' ~~ '"" ,
' ' ' ' .. .... -~ , ... , " \ ',, o .:> ,' ', ',
...... , ·,~ ' '
' I ' ' 'r, ','
I '' \ \
..
. ~ ~ ·' -'· ·',··
' ' ', ' ' \ .. ' ,,,
" ' ' ....... c:,.., ' \ ' t ' \
', I ... , ' ' ' ' ' ' \ '
M ~', _;r \ . '
I ' ' ' ., '
•
' ',, . ·. \
)
·.~
i
MOOEI.-PIWIICTEO
HIIOilOMI'E PWMI
lfll SELlCTED PERIODS
FOR MODEL LAYEII 5
SCENARIO!
wrTHDUT MASS LOADING
~
ModeHI'redlatcf P mhi~UI
c:oncerrtr..uon~CuJ/ll
•
0
0
·:> ..
0
0
0
0
.....
,., .... ...... .......
l DOtaliDO
>>00
QtyDfCalton
C~l1f.._.to
Clryofiii:M:nlde
FvM...aWMttC~ -· ..... --W.t \Yeywalef'OfDitt
Sprtadlq~OIWft
Mlct-VIIIey $1 nb ryl.lndfll /
f~~m~•rlu.-.SIIlt
AllUre Cl-4
' ' ' ' ...
...
' ' ... ' ,,, ,, '
', ~ .. # / ', ',
.......... ~.... ' \
.... . ' ' --,, ', '\
I '' \ \ ', ~' ',
... ... ... '' ', «
...
... ~
' ' ... ' ' -~ .. , .....
'( ' ... ' ... ' ' \ ... ,~
...... ...
'
........ ,,.,
.... ,, '
' ' ' ( ·; I I \' \\
', ... . ' ' ..... J ' \
--u ""'
"'t, ' ' ,, ',',]
-~·' . ... '
' ' ' \ "'
..
MOOB.-PlEDICT£D
I'IIIIHOMTf PWMI
IN SElECTED PERIODS
FOR MODa.IAYER I
SCSIL\IIIOl
WrTIIOIJTMASS IDADING
~
Model·,......fl«<<llora•
CofletMIIII'ON CIII/ll .....
,. .... . ...
... 100
10D1Dl00 -• otyofCo!lon
1) Oly-Ra.ito
0 OlyefRMntic
... ....auw.rec.p.,.,.
v Maii:ADifey --'-' WISYIItf WIWDIItrtcl
~nc &oundli «&as! ..
D liDoAcft.Patcllil
D ........ ......
[ ~--S.nltaryLAirdl:l/
,_ ...... 5 ..
RaureCl-5
l·Dtt-15
' ' ' ' ', ' . . ..... ' ,,, ,, '
',,o:-J '~ ,' ', ',
... -· ' ' ....... ' ', ',
........ ' '
I '' ' \, ', ·~,--', .
' .. ' .......... ' \
•
..
MOOB.~
PliiCiti.OIIATE ~
IN SELECTED PERIODS
FOR MODEL lAYER 6
SCENARIO!
wmtDUT MASS lOADING -Mc*"""-'lwdl"trctdom.e
OlnctftlntiO!'IS (111/ll
•tozo
,. .. .. -.... ..
I;)
0
0
.y. ...
0
0
0
0
.......
1G011D200 ....
CltyafCohoo
CttyafRab
C~ofRMBW.
foftbi•W.t.tc:»n!J,
...... ~ley --Wai .... WIW Dldrkt
Spr•• .... Gtoutdotlasllll
Stotlttnlnt SIM
M~ley~IWylJindftl /
former BuR.rSIM
APPENDIXC2
Model-Predicted Perchlorate Plumes in
Selected Periods for Model Layers 3, 5 and 6
Scenarios 1 and 3 with Mass Loading
GEOSCIENCE
~
l-Dtt-15
~;~'f{;~"":if~ .. ', ' '
,: . ' .... r:~>, ' "' '. ' , ' .... '
', C• ,' ', ', ', ' , 8, ... '
'-¢-,' ~---~ ....... '-' .... , r· , , ,<, [ ', ', ,.( "", ~ ", "
', \ ~.('! ' ' '~ .;.~·-. c~ .-, '' ',' ' ..-(") (~ ' ~-
' ' _, ........ _, ........ ,,,
.... ,, ' """,, & I \ '
' I ' \
... t; t.f ';' ' ' '.... . ' '
"'1, '' ''
...
r ', ' '
.... ~, ' ,. ' .,.,,. '' .
'... '
..
1
MOOQ-PREDICTED
PliiCHIOMrE PWME
IN SEL£CTED PliiiODS
fOR MOOII.IAYI:R J
SCENA&IOl
Wl1tl MASS LOADING -Nodef•PrectidM l"trchloratt
e.onc.ntmtom (ulfl) ..... ...... ...... .......
100 .. 200 ->ZOO
,_, Qty!Jfcaltan
0 OtyofRIMiu
0 ClryofRtw.m;lde
.~ .. --..... • Mlelii&O*'f -eo..o-r
.:> Wftt V.lt., W.ter Dlstrtd
Spre•dlrcGwoundsorBisll'l
D 110-AEK hrcd
D .............
D MJIW)IItY SPibry laltcHIN I
fom~•rBu,..tstt.
~ ·--· ... --I".O. ... __ CA I I11t
-ll"'ltfi1_,_..,.411·ICII _,_. ... _
Flsurea-1
'
' '
' '
' '
' ' '" ', ' ' ' ' ' • ,,, " \ ........ """.) ,' \' ',
' .... ' \ ' ... ' ' ' ..... '' ''
I ', ' ' ', .. f"G', '\
' '
·. ~:·
' ' ..
' ' ' ' ' ' ' ' ,; ', '--,
' ' ' ', ' ' ' ' '....... ~\"'', .... ... , \ '
'' ~,~ I ' \
' . -.. ',I "'\.
'1, '
I ' ' ' '
__ ..
""'
MDDB.-I'IIfDICTD
I'I!IIDILCIUI"E 'WMI
IN IB.IC1ID 'EIIOP$
FOR MODEL lAYER J
SCENARIOJ
wmt MASS lOADING -Mod~·PfeclctM hrdllam.
C:.ct!llnll-k/L) ..... ..... ......
f)
Q
-?·
-?
.)
D
D
[
atr.tcorton
CllyflfNallo
OlrafiiMn~e --c......., -·--c.._. ----
S'padlniGta&.n.,,ar .. •ln
SCCIIneh11niSit.
....,.l.yS.ntc•rv'-'ndfiUI
,._rluftiii,Sh:ll
Flpre C2·2
MODEL·PREDICTED
P!III:KI.OIIATE PWME
IN SELECTED PERI ODS
POR MODEL LAYER I
saNARIOl
WITH MAS5 LDADI!IIG -Modt l·,.,_dlmd IWchlcrN
Cot~mMniUons (....,Lj
<to lO
ZDto-40 ......
IOio liJO
-tcOtlllOO
->200
• crtyDf('.olton
0 Olyofllalto
0 atyoflll~dll!:
<· FMliiNWaeetConlf,
• .......... _.,..,.,....
0 West V.ltlyw.ter Dlltrkt
D 160oAcft.hru:l
D
_ ...
M~Sihbtya..MII/
foml•r &unltet StM
' •. ,,,
" ' , \ \
I \ \ ' \ ' ' ' . ' ' ' " &<> ' . ' ' ' ' ' \ ,,
' '
'
' ' "" ' ' ' .. ' ,,,
" ' .._' : .• .) I \ \
.... , ' \
............ ,... ', '~
..... \' ''
I ' \ ' -~' ' \ ' ' ' n.' \.
M)DB..PIIEDICTED
PEIIICIII.OIIAT! PWME
IN liiLEClll) PERIODS
FOil -L lAYER 5
SCDIMI03
WITH MASS lOADING
~
MDde~Pir<lltcnte
C.ftcsl'ftliaiiJl'&l/lJ ..... ..... ...... ....... -........ ---•
0
e
~-
+
I)
D
D
D
QtyGIColton
OlyaffUIIt:o
OlyfiiRMn!de
f"etGN 'W3Iltt Co111'151i"' -. . .,..., --.. W!IIVIIII"fW.WDI1111ct
lpNclrc Grownds 01 aas;,
......,.~:llntwyl.lftdla!/
ftl,_-aunlriii"Sita
RgureCZ-4
' ' ' ' ' ' .!1
...... ~ -...... ' ,,,
" ' I ' '
•
..... r!l , ' \ ',r;:-f-', ',
.... , '' ''
J '' ' ~ ", :r .:,
' ' ' ... ..... ~.' '
... '-.. ,._~.
.... ,
~ ,
. '' -¢-, #
'<
;(. ', , ' ' ' ' ' ·,
•
-.....mecTEI)
P!IICMIDMIE ~
IN SELECTED P£111005
1011 MOOE1 LAYER I
SCEI'IAJII01
WITH MASS WADING
~
Modti·P'"'dmd ~hlar.ta
ConwntNftaiN (v&I'L} ... ,., ,. .. ..,
--!,.•,\ atyaftolton
0 OlyoiNalto
~ otyofllllvi:nldt:
~· FofWM~a WMt:r Conlf.
+ ....... .,.,., _,_
0 West v.feyWRt:rDI*kt
Sprud.,. Grounck,...,.
0 MOoAc~ P.a~al
0 $\:ttnllhu lltSile
0 Mlcf.J/11.., S.n itlry U NI1111/
fo""*t lunlcefSM
FlgureCZ-5
. : ... ~~' ,,,
" ' '' -•, I' \\ '\ '... ...,.\ \ '
'' I \ \
'1, \' '' ' ' ' ' ' ' ' -""'\ '' ' \ ' .... ... r;;,' \
MDIJB..ftEDICm)
PIIICMIDIUIIE PWME
IN SEUCRD PEIIIDDS
FDa MDOEI. LAYER 6
SCENARID3
WITH MA55lOAI)jNG -Modt~P•trhlat"'lt. __ Ioiii,
..... ...... -.....
Q
c
.. ~ .. ..
I)
D
D
D
OlyoiColton
QlyflliUallo
c:llyfll!Uwwslcle
r.taM w.brCQmpany -&-------
Sprud"111Gtaulldlor~"
11M¥111.y S.nbrr t.tn_.ll/
ron.rlull•r.ste
Flpre C2·6
APPENDIXC3
Model-Predicted Perchlorate Plumes in
Selected Periods for Model Layers 3, 5 and 6
Scenarios 2 and 4 without Mass Loading
GEOSCIENCE
~
MODB..f'REDICTED
PEIICHIOMT'E PWME
IN IEuam PERIODS
fOR IIIDDEI. LAYER 3
SCEIIARIOJ
wmtOUJMASSIDADIIHI
iiEilll!!!!!1!!
Mod•I~Ptn:hlm~
........,_IUI/ll
... :oo
""'"'" ...... .... ..., -""' .. "" ......
•
q
0
~·
•v
(I
D
c:.yrlfeatton
~rlfllaltD
CI:Jcf.w:JUe
,.,._.,.lief~
Mmlll&o.lay
.... cewn.-nr
WlltYIIIeyiNIMDIIhtd
~l"r&aunds or &asln
-...
M~ct-Y.nar s.nn.v t.l'llftUI/
Fo~MtrluW lilte
FIIJUR! C3-1
' ' , ' ... (')), \
,", ', ' ,,......... c· , ... ' ... "'" , ' .... ... ' , 0' ... ' ·.. .1. ~ • ... .... _, ',(' ; f L. ', ... ,
·', .'"" . '-'' '' ,' ... , -~ ~ ', ',
... ' &" ' ... ... ~ ·-~ ~~ (; ' ... , ... '•
' 't c--~ ' .... , ' .... ~"
~ ,,,
....... (':·:· ,'', ',
', ., I \ \
' ... -.... ~-~. ', ', ..,, '' ''
' ' ,..,...,,' ..
' ' ' \ •
..
MOOO..PRIDICTED
Pf.RCHLOIIATE PWME
IN SELECTED PERIODS
FOR MODEL LAYER I
SCfNAIU04
WITHOUT MASS LOADING -ModeH"t«fkwd Paochtom.
CMc.lltndON(Uf/ll
11020 ,. .... ......
6Dto100
-tOOfDlOD
>000
• Cttyd('.olton
0 Cllyotllalm
0 OtyDfMienl!de
..:· --c.,.. • -·--""""""" () West:YalllyW.terOIItrtd
~iJidlnlfin:lllnll•otllllr.
D 160-AmPiorc::et
.............
D Mtd-WI., S.hilary Lattdfllll /
fOtmetlu~Sttt
~ ~ ....... -. ...
IIA I .. -~Ut1J1o
....., .. ,_ Nllllllll ......... -·--
Flcure CS·:l
NDDB.-PREDICT£0
PEIICIIIDMI'E PWME
IN S!laTIP PERIOD5
FOR MOOEI. LAYER 5
SCBIARIOZ
WITHDUrMASS LOADING -Modd·,.._...,.rd!tolft! en...,.... .. ...,.., ..... .... .., -......
60tol00 -1GDN2C0 -.....
at,aiCD.kan
<) ~oiRialla
~ Dly"' llversld•
~~· r.an.w.wrtotnt:~J"'
+ Mlilb&Da~ --i ) WIII:Vd!yw.ter DIIVItt
~Gtauad$f11 .. "
D t&O..tcrehrcel
[' 5mnm.ln:l!iltl
M¥-UIIIIIY S.nttary Llndftll/
ro.,..rlul&lalt.SIM
FlpreC3·3
. .. " , .. ,
" ' ' ' ' I \ \
' ' ' ' ' ' ' ' ' ' :r,·,.
..
'
..
MODEL-PREDICTIIl
PIIICIILOIIATt PWME
IN SELECTtP PERIODS
FOR MOOB. LAYER 5
SCINA11104
WITHOUT MA5S IOo\DING -Modt~klld Ptt'thlotatt:
CDnr:•ntrltlon•(uc/l}
•
0
0
-< .. •
0
0
0
0
6to20
City of Cotton
CllyofiU•ItD
QryoiN\Imtdt --Canol -~ ...... --Wftt'h.ltY'IfthlrDlllt1d
st:n•• Gtounck ot .. Sin
_,..
MI..V.Iky Sinlbry l.aft4lll I
Fonner lunl. Slle
'
·:t:U II
' ' ' '•
' ' ' ' ' ' .-. ' ' ' ' ',, ', .. ' .. ... ... , ... ,
.......... oo ,'', ',
'' I \ \ ........... 'f"' \' '\.
........ , ', ',
t ' ' ' ~.,, ',
\ ' ' \ s
MODB.fREDictm
I'IIICMIOIIAT! PWME
IN SELB:TED PEIUOD5
FOil MODEL LAVER I
5allo\11102
WITHOur MASS LOADING
OPtMIAT)QN
~-Piellded PercNorate
Coftc:. ..... C14AJ .....
• atyo!Co ...
(' """'-e Otyolll .... dli ,. rcrana~w c:o.np...y
• ....... g • --I";< ........ W.t.Dfettld
5p6dln&Gtotlncb or lft!11
D ::a.Acr.:: Pllrcef
0 SIGNh lt~Sitt-
[ Mld-Ney Slftltlty Llnllflllf
,....•rlu,...ln.
Flcure a -s
' ,
', ¢-,~
'(
, ,
, ' , . ', ·~
' \ Y/ ... ,~ cu-~
' ' '
' ' ' '
' '
'' f ... ~ , ... , •
... ~'\ '
............. oo "-,' ', ',
... . ' '
'' I ', '' '1, \ '
I ' ' ' ... :-''' ',,,_ '" .. '' ... ' \ \ ....... ··' \
MOCifi.~JCJED
PEIICHtOMTE PWME
IN SELKTED PERIODS
FOil MOOEL IAYU 6
SCENARI04
WRHOUT MASS LOADING -t.todtt•"ttdC'IeCIPtrchlo~
Concent..naon~ k/1.)
! ... ,., .... ..,
.., .... .... ""
11X11D:ZOO -.....
<:J Cllyottalta'l
0 OtyDfMIIto
0 aty o41tM!Rilll•
..;-klntan• Wllt.r Co~ • hktks&D*y --0 "Wnt Vlla¥VIatet Dilbtct
Spudhtt Gfoundl « IMI"
0 110-Acn: Pwretl
D Stonth.ll1tSttt
D Mld-YalleySa nlt:aryi..Jindflll /
Fonnerllun._.Sih
~I! C&QtOI_,.....,._ ....
HI ..... G~I:i!JIIIT\1
flll-11111111•11-~--~-----
FJ&ureC3-6
APPENDIXC4
Model-Predicted Perchlorate Plumes in
Selected Periods for Model Layers 3, 5 and 6
Scenarios 2 and 4 with Mass Loading
GEOSCIENCE
~
' .. ' .. ', 'v.<"
' . ......... i .,.
,~. ,, ' , ' '
I ' ' ....... ~ ', ',
.... ..,, '' ''
I ' ' " ',·, . .,., ',
' A. \
..
' 1 ' ' ... ·0 '
MODEL-I'RIDICTED
PI IICHLDIUITE PlUME
IN SELECTED PERIODS
FOR MODEL LAY'ER J
SCENMIOZ
Wl11f MASs LOADING -Modt~cvl•kd 0aw1Ji1: &'I
,.l'lhl ~~nt. Conctmmlons (uiiiJ
6to20 ....... -......
60 .. 100 -JOOtDlOD ,.,.
• OlyofColton
0 "''"'-0 Oty ar Mftnkle
"'!. Folont 'WIItllf '-'.
+ -·-
D
D
D
W.tr CGnlpUr
................
Mi6-Wiey SanlbryUIIdlll/
former BunlltrSIW
--u -
..
MDDEJ..PAEDICTED
PEIICHLOIIA'II PWME
IN SIU!tTED PEIUOP5
lOR MDIIEI. LAYER !I
SCENARI04
WITH MAS$ I.OAPING -MoHiofrr'tdelalrwt:hlam.
Cofl~n....._r-N .....
• OlyaiCD!ton
f) CllyafRI•tiG
0 atr"' ltwJ'Mdl!
..:-fenb!M W.tH Cotnlla"Y
·J. -·-_.,........
0 WIII*'-YW.tugtrtrkt
Spudlrl1 G ........ Of laJf•
D :1&0-Ac~PJrtel
J StDMhun.tstt.
[ Mid-Wiry S.nbty LlnctNI/
,.,..,.., .... ,Sit •
FlgureC4-2
' "" ' ' ' ' >. ,.. ',
"(. ... : ',' .
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PO. Box 220. CIaremonl CA 91311
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