D32/100
Martinsburg Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 92,199 residents · West Virginia
What's In Martinsburg's Tap Water?
70
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.62 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
2
Unresolved
0
Health-Related
TIER 3Unresolved
Surface water treatment technique failure
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – March 7, 2024Enforcement: Resolving — corrective action underway
TIER 3Unresolved
Disinfection byproduct treatment technique failure
When: February 12, 2022Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
BERKELEY CO P S W D-BUNKER HILL
Population Served
34,586
Water Source
Groundwater Under Influence of Surface Water
System ID
WV3300202
BERKELEY CO PSWD-GLENWOOD FOREST
Population Served
1,102
Water Source
Groundwater
System ID
WV3300209
MARTINSBURG CITY OF
Population Served
16,250
Water Source
Groundwater Under Influence of Surface Water
System ID
WV3300212
BERKELEY COUNTY PSWD-POTOMAC RIVER
Population Served
34,786
Water Source
Surface Water
System ID
WV3300218
VA MEDICAL CENTER
Population Served
2,175
Water Source
Groundwater Under Influence of Surface Water
System ID
WV3300227
WOODS HOME OWNERS ASSOCIATION 2
Population Served
3,300
Water Source
Groundwater
System ID
WV3300237
Frequently Asked Questions About Martinsburg Water
Is Martinsburg tap water safe to drink?
Martinsburg, West Virginia tap water receives a grade of D (32/100), which is considered poor. 1 contaminant(s) exceed EPA maximum contaminant levels and 307 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Martinsburg's water?
Of the 70 contaminants tested in Martinsburg's water supply, the most notable include Copper (90th percentile), Lead (90th percentile), chlorate. 1 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Martinsburg have any water quality violations?
Yes, Martinsburg has 307 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, TT. 20 of these are health-based violations, which are the most serious category.
Do I need a water filter in Martinsburg?
Based on EPA data, using a water filter in Martinsburg is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Martinsburg's tap water come from?
Martinsburg's drinking water is sourced from groundwater under influence of surface water and supplied by BERKELEY CO P S W D-BUNKER HILL and 5 other water system(s). The system serves approximately 92,199 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Martinsburg's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Martinsburg's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Martinsburg's water compare to other cities in West Virginia?
Martinsburg's water quality score of 32/100 earns a grade of D, which is considered poor. This is a concerning score that suggests significant water quality issues. Visit our West Virginia state page to see how all cities in the state compare.
What should I do if I'm concerned about Martinsburg's water quality?
If you have concerns about Martinsburg's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (BERKELEY CO P S W D-BUNKER HILL) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.