Compare Regulations
Compare state baseline against local requirements in a single view
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Compare state baseline against local requirements in a single view
Rows with an amber indicator differ across selections.
| Field | State Texas TCEQ | Local Brazoria County (Unincorporated) Brazoria County Engineering Department |
|---|---|---|
| Permit | ||
| Permit / Authorization | Construction General Permit (TXR150000) | Drainage Permit / Floodplain Development Permit |
| Submit To | TCEQ | Brazoria County Engineering Department |
| Lead Time | Must file NOI and receive authorization before construction begins | Plan review typically 2–4 weeks |
| Application Method | Online via TCEQ Water Quality ePay system | Submit via Brazoria County Engineering at 111 E. Locust St., Angleton, TX 77515 or online portal; Brazoria County Drainage District permits required separately |
| Fee | $325 for projects disturbing < 5 acres; $525 for ≥ 5 acres | Contact agency for current fee schedule |
| Water Quality | ||
| Impervious Cover Limit | No statewide limit | No countywide impervious cover cap; drainage systems must accommodate design storm flows per Brazoria County Drainage Criteria; multiple drainage districts operate within the county |
| On-Site Treatment Required | Not specified at state level | No |
| Detention Required | Not specified at state level | Yes — Detention required to limit post-development peak flows to pre-development levels for 2-, 10-, 25-, and 100-year storms per Brazoria County and applicable Drainage District criteria; post-Harvey design standards updated; flat coastal plain terrain requires conservative detention sizing |
| Turbidity / Discharge Standard | Not specified in CGP; discharges must not cause or contribute to violations of water quality standards | No numeric NTU limit; discharges must comply with TCEQ TXR150000 and not degrade Brazos River, San Bernard River, Chocolate Bayou, or Galveston Bay tributaries |
| SWPPP | ||
| SWPPP / Local Plan Required | Yes | Yes — SWPPP per TCEQ TXR150000; drainage report required for county permits |
| PE Stamp Required | No | Yes |
| Inspections | ||
| Inspection Requirements | Every 14 days and within 24 hours of a rainfall event producing ≥ 0.5 inches | Brazoria County Engineering inspects county-permitted development; drainage districts inspect work adjacent to or connecting to their channels. Hurricane season requires active BMP maintenance. |
| Inspector Qualification | Stormwater Pollution Prevention Plan (SWPPP) Inspector — no state license required but must be knowledgeable | No county-specific certification required beyond TCEQ SWPPP requirements |
| Design & Zones | ||
| Local Design Manual | N/A — state level | Brazoria County Drainage Criteria |
| Special Overlay Zones | N/A — see local jurisdictions | Brazos River Floodplain, Brazoria County Drainage Districts, Galveston Bay TMDL Watershed, Coastal Zone / Gulf Coast Proximity |