SAWS: Stormwater Construction FAQs
Aquifer Beaker

Edwards Aquifer

Aquifer Level 678.8'
7/17/19 - Official

The Edwards aquifer and its catchment area in the San Antonio region is about 8,000 square miles and includes all or part of 13 counties in south-central Texas.

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Year-Round Watering Hours

Watering with an irrigation system or sprinkler is allowed any day of the week before 11 a.m. or after 7 p.m.

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Aquifer Level 678.8 | Year-Round Watering Hours

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Water Resource Protection & Compliance

Stormwater Construction FAQs

Construction sites or construction activities that discharge storm water are regulated by Texas Commission on Environmental Quality under the Construction General Permit TXR150000 (PDF).

Storm Water Construction Answers

  • What is the Texas Pollutant Discharge Elimination System (TPDES) Permit?
    For information on Construction Storm Water Permits go to the Texas Commission on Environmental Quality (TCEQ) Web Site.

  • What is the Construction Stormwater Ordinance 2014-06-19-0472?

    The Construction Stormwater Ordinance provides SAWS with local authority to enforce stormwater regulations on local construction projects. SAWS stormwater inspectors help to protect water quality by serving as co-permittee with the City of San Antonio and Texas Department of Transportation (TXDOT).

    This ordinance complies with the City of San Antonio's Texas Pollutant Discharge Elimination System (TPDES) permit to reduce pollutants in the Municipal Separate Storm Sewer System (MS4) as required by the Texas Commission on Environmental Quality (TCEQ) Construction General Permit TXR150000 (PDF).

    The ordinance directs the use of Best Management Practices (BMPs) on construction sites within the City's jurisdiction; requires applicable certified Storm Water Pollution Prevention Plans (SWPPP); onsite posted TPDES permits, and certified stormwater inspectors and reports. The ordinance declares the provisions created herein to be in furtherance of regulating the drainage utility; declaring public nuisance; providing penalties, and directing publication.

    Please send copies of Notices of Intent or Construction Site Notices (NOI/CSN) to 48 hours prior to the commencement of construction related activities.

    The ordinance was approved by San Antonio City Council on June 19, 2014.

    Download the full, 11-page document in Adobe PDF format.

    Who are the SAWS Construction Compliance contacts?
    Contact Name Phone
    Erik Hobson, Supervisor 233-3565
    Amber Lovell, Environmental Protection Specialist II 233-3836
    Albert Vargas, Environmental Protection Specialist II 233-3566
    Johnny Avina, Environmental Protection Specialist II 233-3562
    Matthew Apaez, Environmental Protection Specialist II 233-2419