San Bernard Watershed Protection Plan<br />August 3, 2011<br />
San Bernard Watershed Location<br /><ul><li>The watershed is approximately 900 square miles
The San Bernard River flows approximately 125 miles from the headwaters near New Ulm to the Gulf of Mexico
Majority of the land cover is rural uses only about 5% of the watershed is developed land</li></li></ul><li>San Bernard Watershed Protection Plan<br />The WPP is a voluntary process unlike the TMDL<br />The concern in the San Bernard Watershed is bacteria from non-point source pollution<br />Funded by ARRA as opposed to a 319(h) grant from the state<br />No match required, but does require more reporting to TCEQ<br />Will be approved by the EPA<br />
WPP Process<br />Began in September 2009, through October 2011<br />Meeting every other month with stakeholders<br />Funding from TSSWCB for additional monitoring from September 2011 to August 2013<br />Receiving TCEQ funding for stakeholder coordination over the next year while applying for implementation funding after the plan is complete<br />Applied for funding for litter and illegal dumping clean-up and education campaign<br />
Project Purpose<br /><ul><li>Portions of the San Bernard River have been designated as unsuitable for recreational activities due to high bacteria levels.
There are also areas of excessive nutrients and low dissolved oxygen, which may negatively affect fish and other aquatic life.
H-GAC is working with community organizations, citizens, government agencies, and local industries to develop a plan for the San Bernard watershed to restore and protect water quality. </li></li></ul><li>Project Purpose<br />The WPP process is designed to give water quality managers the tools needed to help make decisions to maintain or improve water quality in the region by:<br />Providing a basis for a mostly rural watershed to prepare for anticipated growth and continue to protect water quality<br />Help local governments incorporate BMPs into their jurisdictions that will work for their specific area<br />Analyze run-off pollution problems with geographic information systems (GIS) to strengthen watershed modeling efforts <br />
SELECT modeling<br />SELECT (Spatially Explicit Load Enrichment Calculation Tool) is an analytical approach for developing an inventory of potential bacteria loads based on land use and geographical location.<br />It evaluates each pollutant source and identifies subwatersheds with the greatest contamination potential.<br />The model overestimates potential sources because it does not account for mitigation processes within the watershed.<br />This process included a review of the land cover datasets that we had for the area.<br />
SELECT modeling <br />The inclusion of a buffer zone around the streams showed reduction on rural loadings between 40 to 60%. <br />The use of number or rural households instead of OSSFs lead to increments on loadings from this source, but with no drastic changes in the relative contribution.<br />The model does not account for mitigation processes such as settling, vegetative filtering , temperature, solar inactivation, or other biological factors that bacteria might undergo before reaching the stream. For this reason, SELECT should be coupled with a watershed model to simulate transport processes.<br />
What the models will tell us<br />The modeling results will determine load reductions necessary to meet standards<br />Where load reduction need to be met<br />Which Best Management Practices will help accomplish this<br />These results will be included in the plan which can now be found on our website<br />
Other Projects<br />H-GAC has been working on an OSSF inventory for the region. This information will be posted to our website once complete<br />Watershed signage projects are underway<br />RUAA completed by EIH and TCEQ, study will be published soon<br />
Upcoming Events<br />Stream Team Training August 12 in Sealy and September 9 in Sugar Land<br />www.h-gac.com/texasstreamteam<br />Texas Watershed Stewards August 30 in Baytown<br />http://tws.tamu.edu <br />Next San Bernard Stakeholder meeting August 18 in West Columbia <br />