Construction over the Edwards Aquifer recharge zone in western Williamson County requires a TCEQ-approved water pollution abatement plan under 30 TAC Chapter 213. Any site disturbing one acre or more also needs coverage under the TPDES Construction General Permit TXR150000.
The recharge and contributing zones of the Edwards Aquifer run through western Williamson County, including areas around Georgetown, Cedar Park, and Leander. Regulated construction on the recharge zone must have a water pollution abatement plan approved by TCEQ before any land disturbance begins. Sites disturbing one acre or more must file a Notice of Intent for the TXR150000 Construction General Permit and keep a stormwater pollution prevention plan on site. Permanent water-quality controls must capture the increase in pollutant load from new impervious cover.
Clearing or excavating recharge-zone land without an approved water pollution abatement plan triggers TCEQ enforcement, administrative penalties, and stop-work orders. Discharging construction stormwater without Construction General Permit authorization violates the Texas Water Code.
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Round Rock, TX
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