Nighthawk Water Supply Corporation
EPA ID: TX2270190 · 396 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Nighthawk Water Supply Corporation (TX2270190): no EPA violations recorded in the last five years. Zero violations in five consecutive years of EPA monitoring - Nighthawk Water Supply Corporation has held a clean track record across every reporting cycle in that span, with no enforcement activity of any kind on file for the full service population of 396 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Nighthawk Water Supply Corporation Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Nighthawk Water Supply Corporation serves a community with a median household income of $102,819 and an estimated 10,810 residents across its service area.
🌊 Where Does Your Water Come From?
Nighthawk Water Supply Corporation's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 10 detections recorded. 3 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Comparable Water Systems
Similar-sized systems in Texas
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Nighthawk Water Supply Corporation (EPA ID: TX2270190) is a community water system in Texas that serves approximately 396 people from surface water sources.
This system serves ZIP code 78725 in Austin.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by TX or modeled from parcel and building-footprint data.
- 78725 - Austin
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Nighthawk Water Supply Corporation (TX2270190) on EPA.gov.
Frequently Asked Questions
Is Nighthawk Water Supply Corporation water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Nighthawk Water Supply Corporation in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Nighthawk Water Supply Corporation serve?
Nighthawk Water Supply Corporation serves approximately 396 people across 1 ZIP code in Texas.
Where does Nighthawk Water Supply Corporation get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Nighthawk Water Supply Corporation Water Quality Report, TX. https://zipcheckup.com/water-system/tx2270190/
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title = {{Nighthawk Water Supply Corporation Water Quality Report, TX}},
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url = {https://zipcheckup.com/water-system/tx2270190/}
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