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Edwards Aquifer Authority (Regional)(3 more)
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| Field | Local Edwards Aquifer Authority (Regional) Edwards Aquifer Authority (EAA), San Antonio |
|---|---|
| Permit | |
| Permit / Authorization | Edwards Aquifer Protection Program (EAPP) Authorization |
| Submit To | Edwards Aquifer Authority (EAA), San Antonio |
| Lead Time | 30–60 days for Recharge Zone projects; Contributing Zone review may be faster; EAA recommends pre-application meeting |
| Application Method | Paper application to EAA offices (900 E. Quincy St., San Antonio); pre-application consultation strongly encouraged |
| Fee | EAPP application fee: $500 base + acreage-based fee (ranges from ~$500 for small sites to $5,000+ for large developments); annual compliance inspection fee may apply |
| Water Quality | |
| Impervious Cover Limit | Recharge Zone: 15% max impervious cover (hard cap under EAA Rules); Contributing Zone: varies by subwatershed (typically 30–60%); Transition Zone: no EAA limit but local jurisdiction rules apply |
| On-Site Treatment Required | Yes |
| Detention Required | Yes — Recharge Zone: 100% of the 100-year, 24-hour storm must be retained on-site with no surface discharge to the aquifer recharge features (caves, sinkholes, losing streams); Contributing Zone: water quality volume must be captured and treated before discharge |
| Turbidity / Discharge Standard | EAA prohibits discharges that could contaminate the aquifer; no numeric NTU limit but turbid discharges reaching recharge features are a violation; zero-discharge standard applies in Recharge Zone |
| SWPPP | |
| SWPPP / Local Plan Required | Yes — EAA Best Management Practices (BMP) Plan — required as part of EAPP authorization |
| PE Stamp Required | Yes |
| Inspections | |
| Inspection Requirements | EAA conducts site inspections during construction and post-construction in the Recharge Zone. Annual compliance reports required. TCEQ and EAA may conduct joint inspections for large projects. |
| Inspector Qualification | PE-of-record responsible for BMP Plan compliance; no additional EAA-specific certification required, but familiarity with karst geology is strongly recommended |
| Design & Zones | |
| Local Design Manual | EAA Edwards Aquifer Protection Program Rules and Technical Guidance |
| Special Overlay Zones | Edwards Aquifer Recharge Zone, Edwards Aquifer Contributing Zone, Recharge Features (caves, sinkholes, losing streams) |