Williamstown Water Department
EPA ID: WV3305412 · 3,469 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Williamstown Water Department (WV3305412): 2 unresolved EPA violations on record. Per EPA records, Williamstown Water Department: 2 unresolved violations, 3,469 people in service area.
Data: EPA SDWIS
Service Area Map
Coverage area for Williamstown Water Department Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Williamstown Water Department serves a community with a median household income of $80,714 and an estimated 6,100 residents across its service area. Approximately 62% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 54% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Williamstown Water Department'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.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How Williamstown Water Department compares to EPA limits
What This Means For You
Contaminant 2015 at 1 mg/L exceeds the EPA maximum of 0.0005 mg/L. Probable carcinogen; liver & thyroid damage, immune suppression. Consider granular activated carbon (GAC) filtration.
Mercury at 1 mg/L exceeds the EPA maximum of 0.002 mg/L. Kidney damage, neurological impairment. Consider activated carbon (GAC) filtration.
Atrazine at 1 mg/L exceeds the EPA maximum of 0.003 mg/L. Endocrine disruption, cardiovascular & reproductive effects. Consider granular activated carbon (GAC) filtration.
Cadmium at 1 mg/L exceeds the EPA maximum of 0.005 mg/L. Kidney damage accumulating over lifetime; probable carcinogen. Consider reverse osmosis filtration.
Benzene at 1 mg/L exceeds the EPA maximum of 0.005 mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 7 detections recorded. 2 exceed federal EPA limits (4 ppt for PFOA/PFOS). 1 exceeds state limits.
Contaminant 2015 was detected in this water system. granular activated carbon (GAC) 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
Williamstown Water Department (EPA ID: WV3305412) is a community water system in West Virginia that serves approximately 3,469 people from groundwater sources.
This system serves ZIP code 26187 in Williamstown.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 29 archived, 0 addressed, and 2 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 |
|---|---|---|---|
| October 1, 2025 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| October 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| October 1, 2024 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| January 1, 2023 | Contaminant 2010 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2015 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2035 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2036 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2037 | Non-health-based | Archived |
| January 1, 2023 | Atrazine | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2040 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2042 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2046 | Non-health-based | Archived |
| January 1, 2023 | Benzene | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2051 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2065 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2067 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2105 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2306 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2383 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 2959 | Non-health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Failure | 2 | No |
| Barium | Inorganic | 1 | No |
| Cadmium | Inorganic | 1 | No |
| Chromium | Inorganic | 1 | No |
| Fluoride | Inorganic | 1 | No |
| Selenium | Inorganic | 1 | No |
| Nickel | Inorganic | 1 | No |
| Nitrite | Inorganic | 1 | No |
| Contaminant 1036 | Other Violation | 1 | No |
| Contaminant 1045 | Other Violation | 1 | No |
| Mercury | Inorganic | 1 | No |
| Contaminant 1075 | Other Violation | 1 | No |
| Contaminant 1085 | Other Violation | 1 | No |
| Contaminant 2010 | Other Violation | 1 | No |
| Contaminant 2015 | Other Violation | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0034 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 WV or modeled from parcel and building-footprint data.
- 26187 - Williamstown
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Williamstown Water Department (WV3305412) on EPA.gov.
Frequently Asked Questions
Is Williamstown Water Department water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 2 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Williamstown Water Department serve?
Williamstown Water Department serves approximately 3,469 people across 1 ZIP code in West Virginia.
Where does Williamstown Water Department get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Above Current MCL
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). One or more PFAS compounds were measured above the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Williamstown Water Department (WV): 32 EPA Violations. https://zipcheckup.com/water-system/wv3305412/
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author = {{ZipCheckup}},
title = {{Williamstown Water Department (WV): 32 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wv3305412/}
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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
Williamstown Water Department (EPA ID: WV3305412) - request the latest Consumer Confidence Report or ask about specific contaminants.