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City of Brownsville(3 more)
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| Field | Local City of Brownsville City of Brownsville Public Works / Engineering |
|---|---|
| Permit | |
| Permit / Authorization | Grading / Drainage Permit |
| Submit To | City of Brownsville Public Works / Engineering |
| Lead Time | Plan review typically 2–4 weeks |
| Application Method | Submit via City of Brownsville Engineering at 1034 E. Levee St., Brownsville, TX 78520 or online portal at brownsvilletx.gov |
| Fee | Contact agency for current fee schedule |
| Water Quality | |
| Impervious Cover Limit | No citywide impervious cover cap; drainage systems must accommodate design storm flows; resaca drainage system and Rio Grande proximity create unique constraints |
| On-Site Treatment Required | No |
| Detention Required | Yes — Detention required to limit post-development peak flows to pre-development levels for 2-, 10-, 25-, and 100-year storms per City of Brownsville Drainage Design Standards; flat Gulf Coastal Plain terrain requires pump-assisted drainage in some low areas |
| Turbidity / Discharge Standard | No numeric NTU limit; discharges must comply with TCEQ TXR150000 and not degrade Rio Grande, Brownsville Ship Channel, or Laguna Madre water quality; Rio Grande has international treaty water quality obligations |
| SWPPP | |
| SWPPP / Local Plan Required | Yes — SWPPP per TCEQ TXR150000; drainage report required for local permit |
| PE Stamp Required | Yes |
| Inspections | |
| Inspection Requirements | City of Brownsville Public Works inspects grading permits at rough grading and final stabilization. Hurricane season preparedness required June–November. |
| Inspector Qualification | No city-specific certification required beyond TCEQ SWPPP requirements |
| Design & Zones | |
| Local Design Manual | City of Brownsville Drainage Design Standards |
| Special Overlay Zones | Rio Grande / IBWC Jurisdiction, Resaca System, Laguna Madre / Coastal Zone, FEMA Special Flood Hazard Area |