Black Rock Water Supply Corporation
EPA ID: TX0610040 · 1,764 people served · 2 ZIP codes
ZipCheckup's reading of EPA SDWIS for Black Rock Water Supply Corporation (TX0610040): 5 EPA violations in the last five years. Beyond the 5 historical violations on Black Rock Water Supply Corporation's EPA record, nothing remains open - the utility is currently compliant and supplies water to 1,764 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Black Rock Water Supply Corporation Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Black Rock Water Supply Corporation serves a community with a median household income of $100,363 and an estimated 63,479 residents across its service area.
💧 Where Does Your Water Come From?
Black Rock Water Supply Corporation's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Detected Contaminants
How Black Rock Water Supply Corporation compares to EPA limits
What This Means For You
Selenium at 1 mg/L exceeds the EPA maximum of 0.05 mg/L. Hair & nail loss, nerve damage, liver & kidney damage. Consider reverse osmosis filtration.
Stage 1 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 7 detections recorded.
Selenium was detected in this water system. reverse osmosis filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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
Black Rock Water Supply Corporation (EPA ID: TX0610040) is a community water system in Texas that serves approximately 1,764 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 3 resolved, 2 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| September 1, 2023 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| January 1, 2021 | Stage 1 DBP Rule | Non-health-based | Resolved |
| January 1, 2021 | Nickel | Non-health-based | Archived |
| January 1, 2021 | Selenium | Non-health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Selenium | Inorganic | 1 | No |
| Nickel | Inorganic | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
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.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Black Rock Water Supply Corporation (TX0610040) on EPA.gov.
Frequently Asked Questions
Is Black Rock Water Supply Corporation water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Black Rock Water Supply Corporation; its 5 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Black Rock Water Supply Corporation serve?
Black Rock Water Supply Corporation serves approximately 1,764 people across 2 ZIP codes in Texas.
Where does Black Rock Water Supply Corporation get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Black Rock Water Supply Corporation (TX): 5 EPA Violations. https://zipcheckup.com/water-system/tx0610040/
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title = {{Black Rock Water Supply Corporation (TX): 5 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/tx0610040/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Black Rock Water Supply Corporation (EPA ID: TX0610040) - request the latest Consumer Confidence Report or ask about specific contaminants.