# Cornerstone Site Services LLC: stormwater general permit coverage TXR1587ZT, Williamson County, TX

**Score:** 70/100

| Field | Value |
|---|---|
| Company / public body | Cornerstone Site Services LLC |
| Customer type | Other |
| Program | Stormwater general permit coverage |
| Authorization ID | TXR1587ZT |
| Authorization status | Active |
| Location | Williamson County, TX |
| TCEQ region | 11 |
| Registry status date | 2026-10-19 |
| Regulated entity (RN) | RN112550330 |

## Why this score
- Active authorization: ongoing compliance work.
- Construction stormwater: SWPPP and inspections needed.
- Updated in the last 30 days.

Source: Texas Commission on Environmental Quality (TCEQ) Central Registry, five regional files (data.texas.gov) (https://data.texas.gov/d/msah-s2rv). Last refreshed: 2026-11-04T06:10:48.783Z.
From the TCEQ Central Registry. The date shown is the regulated entity's registry status date, which changes when a site is created or its record is updated; an authorization status is administrative and says nothing about compliance. Individuals, sole proprietorships, occupational licenses and home septic records are excluded, and no street addresses are kept. Verify in TCEQ Central Registry.