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City of Laredo(3 more)
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| Field | Local City of Laredo City of Laredo Public Works / Engineering Department |
|---|---|
| Permit | |
| Permit / Authorization | Grading / Drainage Permit |
| Submit To | City of Laredo Public Works / Engineering Department |
| Lead Time | Plan review typically 2–4 weeks |
| Application Method | Submit via City of Laredo Development Services at 1110 Houston St., Laredo, TX 78040 or online portal |
| Fee | Contact agency for current fee schedule |
| Water Quality | |
| Impervious Cover Limit | No citywide impervious cover cap; drainage systems must accommodate design storm flows; Rio Grande and Zacate Creek floodplains impose fill and elevation restrictions |
| 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 Laredo Drainage Design Criteria; arid climate with intense summer thunderstorms requires conservative storm routing |
| Turbidity / Discharge Standard | No numeric NTU limit; discharges must comply with TCEQ TXR150000 and not degrade Rio Grande water quality; Rio Grande is a critical water supply and international waterway |
| 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 Laredo Engineering Department inspects grading permits at rough grading and final stabilization. Summer monsoon season (July–September) can produce intense thunderstorms requiring active BMP maintenance. |
| Inspector Qualification | No city-specific certification required beyond TCEQ SWPPP requirements |
| Design & Zones | |
| Local Design Manual | City of Laredo Drainage Design Criteria |
| Special Overlay Zones | Rio Grande Floodplain (FEMA AE/AO Zones), Zacate Creek Floodplain, International Boundary Zone (IBWC Jurisdiction), Port of Laredo / International Trade Zone |