The Surface Water Program maintains master copies of the Simplified Water Allocation Models. Use this page to download SWAM models for the Edisto, Broad, Pee Dee, Salkehatchie, Saluda, and Savannah River basins.

Public Release

The South Carolina Department of Environmental Services (SCDES) is pleased to announce the public release of the Simplified Water Allocation Models (SWAM) for the Broad, Edisto, Pee Dee, Salkehatchie, Saluda, and Savannah river basins. These models are being made available via this FTP Site. At the site a folder is listed for each basin, and each folder includes the following files:

1. Excel file, with extension .xlsm, containing the most recently updated SWAM Baseline Model.
2. Initial South Carolina Surface Water Quantity Model Report for the basin.
3. Supplemental Technical Memorandums, if any, regarding any updates or changes to the model since the initial model report was released.
4. Excel file, with extension .xlsm, containing a historical log of model revisions.

Users should carefully review the modeling report and any technical memorandums included in each basin folder prior to using the model. Users are also strongly encouraged to review the SWAM User’s Manual (v5.0) that is available on the FTP site under the User’s Manual folder.

Background

SCDES awarded a contract to CDM Smith, Inc. in August 2014 for the purpose of developing surface water quantity models using the SWAM modeling tool. The SWAM models are intended to support the development of regional water plans for each of the eight major river basins in the State. Information on the State’s water planning efforts can be found on the SCDES website and at scwatermodels.com.

System Requirements

Minimum system requirements for using the SWAM models include Microsoft Excel 2013 and a computer with 8 GB of RAM.

Model Updates

SCDES has made tremendous efforts to ensure the accuracy of data included in the model but cannot guarantee that data inputs are error free. Models will be updated as necessary and a log describing any changes or updates to the model will be included in each basin’s subfolder. To ensure access to the most recent model, users are encouraged to access the model directly from this public site.

Distribution

Each individual user should download his or her model(s) of interest directly through this public access site. The distribution of the models to other potential users is strongly discouraged.

Notice and Disclaimer

The South Carolina Department of Environmental Services is providing free public access to the SWAM models and associated data. The SWAM models were developed for the purpose of providing general water availability information and are intended to support the development of regional water plans in each of the eight major river basins in the State. The model is not designed or intended to function as a site specific engineering or hydraulic model. The models are based on the available data at the time of development. Although the models and data have been subjected to rigorous review and are substantially complete, SCDES reserves the right to revise the models and data pursuant to further analysis and review. Updated models may subsequently be released and made available to the public.

Though the models are being made available for personal use to interested stakeholders, the SCDES is not obligated to review or comment on individual applications of the model. The agency is also not responsible for the misuse or misapplication of the model, and any person or entity that relies on the SWAM model does so at his or her own risk.

The SCDES, including any board member, officer, or employee, does not warrant the function of the SWAM models and shall not be liable for any losses caused by such reliance on the operation of the SWAM models, including, but not limited to, incidental and consequential damages. The access to and distribution of the SWAM models is provided 'as is' without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability, fitness for a particular purpose or non-infringement. The SCDES maintains all immunities and defenses provided in the South Carolina Tort Claims Act and otherwise provided by law.

Download Models

Direct download access to the Simplified Water Allocation Models is temporarily unavailable. Please contact Scott Harder (scott.harder@des.sc.gov) for access.

Contact Information

For any issues regarding the use of the models or to report potential data input errors, please contact Scott Harder (scott.harder@des.sc.gov) or Leigh Ann Monroe (leigh.monroe@des.sc.gov) with SCDES.