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Zapata County
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Zapata 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)
0
General permits
Investigation context

Weather + hydrology context for Zapata County

Composite operating context — active hazards, hydrologic features, surface-water condition, and infrastructure footprint — pulled from cached snapshots only.

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.

Hydrology features
2 TWDB features

Rio Grande · International Falcon Reservoir

1 Major River Basins · 1 HUC 8 Hydrologic Units

Surface water condition
No segments cached

No TCEQ-classified surface segments in this county for the cached assessment year.

Drinking-water exposure
12 SDWIS violations

3 public water systems with cached health-based violations since 2023-04-01. 13,410 people served by those systems.

Top PWS: ZAPATA COUNTY SAN YGNACIO AND RAMIRENO (7 viol.) · Top contaminant code: 8000

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
7 microbial violations

2 PWSes carry SDWIS rule-group 100 (microbial) violations — the same rule that triggers Texas boil-water advisories. 7 of those are Tier 1 (24-hour public notice).

Top PWS: ZAPATA COUNTY WATERWORKS SWTP (4 viol.) · Latest: 2023-07-01

Treatment stress · E2 disinfectant
3 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: ZAPATA COUNTY SAN YGNACIO AND RAMIRENO (3 viol.) · Top contaminant code: 2950 · Latest: 2023-07-01

Active alerts

No active alerts.

Stream gauges

No gauges loaded.

Notes