Active hazard footprint
0 active alerts
No NWS-driven alerts active in the cached water-summary feed. Drought + precipitation context land once those snapshots are committed.
No sewer overflow rows in the 30-day window.
County workspace
San Patricio County
san-patricio-county
San Patricio County water profile
County-level water context pulled from the Atlas Texas summary service. Use this as operating context, not a regulatory determination.
0
Active alerts
0
Stream gauges
0
Sewer overflows (30d)
15
General permits
Investigation context
Weather + hydrology context for San Patricio County
Composite operating context — active hazards, hydrologic features, surface-water condition, and infrastructure footprint — pulled from cached snapshots only.
Hydrology features
8 TWDB features
GULF_COAST · CARRIZO · Nueces · Nueces-Rio Grande
2 Major Aquifers · 4 Major River Basins · 3 HUC 8 Hydrologic Units
Surface water condition
5 impaired / 8 segments
63% of cached TCEQ surface segments in this county carry at least one impairment flag.
Basin: Bays and Estuaries, Nueces River Basin+
Drinking-water exposure
15 SDWIS violations
7 public water systems with cached health-based violations since 2023-04-01. 30,924 people served by those systems.
Top PWS: CITY OF MATHIS (9 viol.) · Top contaminant code: 2950
Stream gauge coverage
0 active gauges
No active stream gauges in the cached water-summary feed. Hydrologic stress signal lands once gauges fold in.
USGS streamflow anomaly + drought class join in next-up.
Boil-water proxy · microbial rule
No microbial violations cached
No SDWIS rule-group 100 microbial violations cached for this county. Tier-1 boil-water-equivalent events activate this lane when they post.
Treatment stress · E2 disinfectant
8 disinfectant violations
1 PWS carry SDWIS rule-group 200 (Disinfectants and Disinfection Byproducts Rule) violations — the same rule family that drives E2 disinfectant residual reporting.
Top PWS: CITY OF MATHIS (8 viol.) · Top contaminant code: 2950 · Latest: 2025-07-01
Impaired surface segments in this county
- Corpus Christi Bay (Oyster Waters)Bays and Estuaries · oyster waters
- Conn Brown HarborBays and Estuaries · contact recreation
- Nueces Bay (Oyster Waters)Bays and Estuaries · oyster waters
- Aransas River Above TidalSan Antonio-Nueces Coastal Basin · contact recreation
- Nueces River Below Lake Corpus ChristiNueces River Basin · general use
Impairment is a legal-use-support classification, not a direct harm claim.
Mismatch signals
Score: 55
- • surface-water impairment is present with no active hazard alerts in the cached feed
- • 5 impaired segments without any cached USGS stream gauges — under-monitored surface water
- • 15 active permits without any USGS stream gauges — unmonitored discharge buildup
Active alerts
No active alerts.
Stream gauges
No gauges loaded.
Notes
- • Nearby surface-water impairment context is additive only; it is not a standalone verdict on county-wide harm.
- • NFHL political jurisdictions mapped: 17
- • Surface-water segments: 8 (5 impaired)