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   Salt River Valley (SRV) Regional Model

Salt River Valley Model History and Timeline

SRV MODFLOW model development began in the late 1980's. Previous to the late 1980's, two groundwater models within the Salt River Valley had been developed. Thomas Anderson (1968) developed an electric analog model simulating the groundwater depletion of Central Arizona between 1923 and 1964. In 1982 Long et al. developed a USGS Trescott Model which simulated 1964 - 1977.

Since the first SRV MODFLOW release in 1994 the model has undergone several updates with the most recent update completed in 2009 (transient calibration period 1983-2006).  The SRV model geology was updated in 2010 and expanded the model grid to include the Hassayampa sub-basin.  The next SRV model update is currently in the initial phase of development and plans to include a simulation of steady state (circa 1900) and transient (1901-2011) conditions.     

Salt River Valley Model Location

SRV Model in Arizona
          SRV Model Map

The Salt River Valley model grid approximately 6,937 square miles and includes the greater Phoenix metro area. [14MB pdf] Adobe File

Salt River Valley Model Datasets

  • 1983 to 2002 ADWR Calibrated SRV Model MODFLOW Datasets [2.5MB zip] ZIP Icon
  • 1983 to 2006 ADWR Calibrated SRV Model MODFLOW Datasets [3.1 MB zip] ZIP Icon

             - Version 3 (04/16/2014)

  • 1983 to 2006 ADWR Calibrated Spatial Datasets (ESRI GDB) [32.6 MB zip] ZIP Icon

             - Version 3 (04/16/2014), Layer Specifics Included in Metadata

Salt River Valley Model Presentations

                                             

  • SRV Model Update Presentation (August 26, 2008) [31MB  ppt]

Salt River Valley Model Reports and Documents

 

  • The Salt River Valley Cooperative Study Modeling Effort, Long, et al. (June 1982) [28MB pdf] Adobe File
 
  • Groundwater Flow and Contaminant Transport Model, Central Phoenix, Maricopa County, Arizona. Steve Corell. Modeling Report No. 03 (February, 1992). [70.5MB pdf] Adobe File
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  • Phoenix-Goodyear Airport Groundwater Flow and Contaminant Transport Model. Greg Bushner. Modeling Report No. 05 (September, 1992) [19.3MB pdf] Adobe File
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  • A Regional Groundwater Flow Model of the Salt River Valley - Phase I. Hydrogeologic Framework and Basic Data Report. Corkhill, et al. Modeling Report No. 6 (April, 1993) [51MB pdf]Adobe File
 
  • A Regional Groundwater Flow Model of the Salt River Valley - Phase II.    Numerical Model, Calibration, and Recommendations. Corell and Corkhill . Modeling Report No. 8 (March, 1994) [153MB pdf] Adobe File
 
  • An Application of the Regional Groundwater Flow Model of the Salt River Valley, Arizona. Analysis of Future Water Use and Supply Conditions: Current Trends Alternative 1989 - 2005. Hipke, et al. Modeling Report No. 11 (October 1996) [100MB pdf] Adobe File
 
  • SRV Model Calibration Update 1983-2002. Technical Memo. Bota, et al. (December 2004) [1.7MB pdf] Adobe File
  • Revised Groundwater Modeling Results for the East Valley Water Forum Regional Water Planning Study. Corkhill, et al. (December 2004) [2MB pdf] Adobe File
  • Salt River Valley Model Geology Update (Provisional Report). Corkhill et al. Modeling Report No. 16. (October 2006) [65MB pdf] Adobe File

Metadata: Report No. 16 documents ADWR's 2006 update of the geologic framework of its Salt River Valley (SRV) groundwater flow model. The purpose of the geology update was to incorporate new geologic information from active growth areas within the model area, and to better define geologic interpretations throughout the model area.

  • East Valley Water Forum Scenarios for the East Salt River Valley Sub-basin. An Application of the Regional Groundwater Flow Model of the Salt River Valley, Arizona. Hipke, W. Modeling Report No. 17. (April 2007) [7.7MB pdf] Adobe File

Metadata:  Report No. 17 used the Salt River Valley 1983-2002 groundwater flow model to run predictive scenarios developed by the East Valley Water Forum for the East Salt River Valley sub-basin portion of the Phoenix AMA. The scenarios were designed to provide information for the development of a water management plan by the East Valley Water Forum. The three scenarios include a “business as usual” scenario, a balance between pumping and recharge scenario, and the last scenario looked at possible solutions to reducing the major cones of depression predicted by the first two scenarios.

  • Regional Groundwater Flow Model of the Salt River Valley, Phoenix Active Management Area, Model Update and Calibration. Freihoefer et al. Modeling Report No. 19. (April 2009) [9.3MB pdf] Adobe File

Report (Text) Only [300KB pdf] Adobe File    Figures Only [8.2MB pdf]  Adobe File     Appendices Only [6.4MB zip] ZIP Icon   

 

Metadata:  Report No. 19 documents ADWR's 2008/2009 update of the SRV Regional groundwater flow model (1983-2006). The model was developed and calibrated during the transient period and does not include any future projections. The 2009 SRV model update includes the following improvements: simulates conditions between 1983 and 2006, decreases the model cell size to 0.5 mile by 0.5 mile, updates geologic interpretation, adds the Lake Pleasant region, revises pumpage and recharge datasets, and uses an updated MODFLOW code. In addition to the model updates, the model was re-calibrated using well specific heads and the annual water budget for the transient period of 1983 to 2006.

 
  • A Salt River Valley Groundwater Flow Model Application.  100-Year Predictive Scenarios Used for the Determination of Physical Availability in the Phoenix Active Management Area. Hipke. Modeling Report No. 22 (July 2010) [6.4 MB pdf] Acrobat Icon PDFs  Data Files [14.9 MB zip] ZIP Icon

Metadata: Report No. 22 documents the details of various 100-year predictive scenarios that were developed as part of the Assured Water Supply re-designation process. This document discusses assumptions common to all scenarios, assumptions specific to each scenario, the variations in pumping and recharge volumes used in the scenarios, and the results of the scenarios.

  • Geological Update for the Combined SRV and Lower Hassayampa Regional Groundwater Flow Model Areas in the Phoenix AMA. Dubas. Modeling Report No. 23 (December 2010) [4.4 MB pdf] Acrobat Icon PDFs  
 

Access Database [0.56 MB zip] ZIP Icon

Metadata: Report No. 23 documents ADWR's 2009/2010 merging of the Lower Hassayampa sub-basin geology with the geology used in the 2009 SRV regional groundwater flow model from 1983-2006 (Report No. 19), as well as the revisions north of Paradise Valley, adjacent to the Hieroglyphic Mountains, and in the Buckeye and Surprise areas.  The geology data presented in this report will be used in the "Phoenix model" which is currently in production at ADWR.  The Phoenix model combines the SRV and Lower Hassayampa sub-basin model domains into one model domain.


Questions?

                                                              

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