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City of Round Rock(3 more)
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| Field | Local City of Round Rock City of Round Rock Development Services Department |
|---|---|
| Permit | |
| Permit / Authorization | Drainage / Grading Permit |
| Submit To | City of Round Rock Development Services Department |
| Lead Time | Typically 3–6 weeks for standard commercial and residential projects; pre-application conference with Development Services encouraged |
| Application Method | Applications submitted through Round Rock Development Services at City Hall. Online permit portal available at roundrocktexas.gov. Contact Development Services at (512) 218-5428. |
| Fee | Contact agency for current fee schedule |
| Water Quality | |
| Impervious Cover Limit | Round Rock does not impose a blanket citywide impervious cover cap; zoning district regulations and overlay districts may limit impervious cover. Edwards Aquifer Contributing Zone portions are subject to TCEQ Chapter 213 requirements. |
| On-Site Treatment Required | Yes |
| Detention Required | Yes — Detention required per Round Rock Drainage Criteria Manual. Post-development peak discharge must not exceed pre-development peak discharge for the 2-, 10-, and 100-year storm events. Water quality volume (WQV) must be captured and treated on site, designed to treat the 1.5-inch water quality storm. Acceptable BMPs include wet ponds, bioretention cells, vegetated swales, and sand filters. |
| Turbidity / Discharge Standard | Comply with TPDES Construction General Permit (TXR150000). Discharge from the construction site must not cause or contribute to violations of Texas Surface Water Quality Standards in the San Gabriel River, Brushy Creek, or other receiving water bodies. |
| SWPPP | |
| SWPPP / Local Plan Required | Yes — Stormwater Pollution Prevention Plan (SWPPP) per TPDES TXR150000 |
| PE Stamp Required | No |
| Inspections | |
| Inspection Requirements | Round Rock Development Services and Public Works conduct drainage and erosion control inspections. Inspections required at: pre-construction/erosion control installation, rough grading, drainage infrastructure installation, and final grading/stabilization. Projects must achieve 70% vegetative cover or approved equivalent before final acceptance. |
| Inspector Qualification | No city-specific erosion control certification required beyond TPDES standards. TPDES CGP requires qualified site inspectors to conduct inspections at least every 14 calendar days and within 24 hours of any storm event producing ≥0.5 inches of rainfall. |
| Design & Zones | |
| Local Design Manual | Round Rock Drainage Criteria Manual |
| Special Overlay Zones | Edwards Aquifer Contributing Zone, Brushy Creek Watershed / FEMA SFHA, Creek Buffer / Riparian Setback |