Compare Regulations
Compare state baseline against local requirements in a single view
Loading...
Compare state baseline against local requirements in a single view
Rows with an amber indicator differ across selections.
| Field | State Texas TCEQ | Local Collin County Collin County Engineering Department |
|---|---|---|
| Permit | ||
| Permit / Authorization | Construction General Permit (TXR150000) | Drainage / Land Disturbance Permit |
| Submit To | TCEQ | Collin County Engineering Department |
| Lead Time | Must file NOI and receive authorization before construction begins | 10–15 business days typical |
| Application Method | Online via TCEQ Water Quality ePay system | Submit application, drainage study, and grading plan to Collin County Engineering Department at 2300 Bloomdale Rd., Suite 3100, McKinney, TX 75071 |
| 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 county-wide impervious cover cap for unincorporated areas; post-construction controls required per TCEQ CGP for sites ≥1 acre |
| On-Site Treatment Required | Not specified at state level | Yes |
| Detention Required | Not specified at state level | Yes — Post-development peak discharge must not exceed pre-development rates for 2-, 10-, and 100-year storm events per Collin County Criteria Manual for the Design of Flood Control and Drainage Facilities; detention facility must be maintained under a recorded maintenance agreement |
| Turbidity / Discharge Standard | Not specified in CGP; discharges must not cause or contribute to violations of water quality standards | Comply with TCEQ TXR150000 construction effluent limits; no separate county numeric turbidity standard beyond TCEQ requirements |
| SWPPP | ||
| SWPPP / Local Plan Required | Yes | No local plan |
| PE Stamp Required | No | No |
| Inspections | ||
| Inspection Requirements | Every 14 days and within 24 hours of a rainfall event producing ≥ 0.5 inches | Collin County Engineering Department may conduct inspections to verify compliance with approved drainage plans and stormwater controls. Final inspection required prior to permit closeout and acceptance of public drainage infrastructure. |
| Inspector Qualification | Stormwater Pollution Prevention Plan (SWPPP) Inspector — no state license required but must be knowledgeable | TCEQ-qualified inspector required per CGP; county does not impose additional local inspector certification requirements |
| Design & Zones | ||
| Local Design Manual | N/A — state level | Collin County Criteria Manual for the Design of Flood Control and Drainage Facilities |
| Special Overlay Zones | N/A — see local jurisdictions | FEMA Special Flood Hazard Area (SFHA), Lake Lavon Watershed, East Fork Trinity River Corridor |