Wvaw – Walnut Grove Utilities water quality
Charles Town, WV · serves 7,250 people (3,081 connections) · Groundwater under influence of surface water · Private · EPA ID WV3301942
Data: U.S. EPA · How we read the data · How we check it
Summary
PFAS above the 2024 federal limits. Systems have until 2029 to meet the PFAS limits.
Is it an emergency? No: PFAS limits are about years of exposure, not a glass of water, and nothing in EPA's data calls for you to stop drinking the water today. If your utility ever issues a boil-water or do-not-drink notice, follow it.
- PFAS
- Above limitPFOS above the federal limit in EPA's 2023–2025 testing (PFOS 14.9 ppt vs a limit of 4 ppt, where ppt = parts per trillion).
- Lithium
- Above screening levelHighest result 26.9 ppb. EPA uses 10 ppb to decide what to study further. It is not a health limit, and there is no federal limit for lithium. About 1 in 4 systems tested were above it.
- Lead
- Below action level3 ppb (parts per billion) at the 90th percentile: 9 in 10 homes sampled were at or below it. Action level 15 ppb, falling to 10 ppb in Nov 2027. Monitoring period ending Dec 2025. Your home's pipes can make yours higher.
- Violations
- Resolved3 health-based violations since 2016, most recently Apr 2018.
- Pregnant, or mixing baby formula with tap water? Babies drink more water for their size, so PFAS exposure matters more for them. Consider bottled water or a filter certified for PFAS for formula, and ask your doctor. Health effects.
- To lower your PFAS exposure now, a home filter certified for PFAS reduction works (reverse osmosis, or activated carbon certified to NSF/ANSI 53 or 58). Filters for these results.
- Built before 1986, or not sure what your service line is made of? Check your service line and test your tap. Utility data can't show your pipes.
- Tested your own tap? Compare your result with these numbers. Moving? Compare this system with another.
- Read Wvaw – Walnut Grove Utilities's annual water quality report (Consumer Confidence Report). It lists every regulated contaminant tested and is usually on the utility's website or mailed with your bill, and you can also request it at (304) 347-1510. EPA: how to find it.
PFAS (“forever chemicals”)
EPA UCMR 5: 8 entry points tested Jan 2025 to Oct 2025. "Average" is the highest entry-point average (non-detects counted as zero), the way EPA compares UCMR 5 results to the limits. ppt = parts per trillion. These results do not determine compliance.
| Contaminant | Highest average |
|---|---|
| PFOA One sample above limit Limit 4 ppt | 2.1 ppt 52% of the limit |
| PFOS Above limit Limit 4 ppt | 14.9 ppt 3.74× the limit |
| PFHxS Detected, below limit Limit 10 ppt | 6.35 ppt 64% of the limit |
| PFNA Detected, below limit Limit 10 ppt | 4.35 ppt 43% of the limit |
| HFPO-DA (GenX) Not detected Limit 10 ppt | – |
| Hazard Index (a combined score for PFHxS, PFNA, GenX and PFBS, where above 1 is over the limit) Detected, below limit Limit 1 | 0.64 |
| PFBS Detected, below limit Guideline 2,000 ppt | 8.75 ppt |
| PFBA Not detected Guideline 6,000 ppt | – |
| PFHxA Detected, below limit Guideline 3,000 ppt | 4.8 ppt |
| PFPeA Detected, no limit | 5.4 ppt |
For context: the PFOS average is higher than at 98% of the West Virginia systems EPA tested.
29 PFAS tested, 7 detected at least once. "Not detected" means below EPA's reporting limit (about 2 to 20 ppt depending on the chemical), not proven zero. PFAS not listed were not detected. The limits for PFHxS, PFNA, GenX and the Hazard Index were proposed for rescission in May 2026. That proposal is not final. Systems have until 2029 to meet the limits.
Lithium
Detected in 5 of 18 samples. Highest result 26.9 ppb. EPA's non-enforceable screening level is 10 ppb. Above screening level The screening level is how EPA decides what to study further, not a health limit. There is no federal limit for lithium and no filter is certified to remove it. About lithium.
Lead and copper
Latest 90th percentile: 3 ppb lead (Jan 2025 – Dec 2025). Below action level
Highest since 2016: 4.3 ppb (Jun 2023).
| Monitoring period | Lead (90th pct.) |
|---|---|
| Jan 2025 – Dec 2025 | 3 ppb |
| Jan 2024 – Dec 2024 | 4 ppb |
| Jul 2023 – Dec 2023 | 0 ppb |
Earlier results (9)
| Jan 2023 – Jun 2023 | 4.3 ppb |
| Jul 2022 – Dec 2022 | 0 ppb |
| Jan 2022 – Jun 2022 | 0 ppb |
| Jul 2021 – Dec 2021 | 2.7 ppb |
| Jan 2020 – Dec 2020 | 2 ppb |
| Jan 2017 – Dec 2019 | 0.71 ppb |
| Jan 2014 – Dec 2016 | 1.6 ppb |
| Jan 2011 – Dec 2013 | 0 ppb |
| Jan 2008 – Dec 2010 | 2.3 ppb |
Lead comes from pipes and fixtures, not the source water, so it varies home to home. The 90th percentile means 9 in 10 sampled homes were at or below it. More on lead.
Violations
| When | What happened |
|---|---|
| Apr 2018 | An inspection found a significant problem (such as a damaged well or storage tank) that was not fixed on time. EPA record: Long Term 2 Enhanced Surface Water Treatment Rule · Failure To Address Deficiency (limit ) Resolved |
| Jun 2017 | The system did not filter its surface water as required, a protection against germs like Giardia and Cryptosporidium. EPA record: Surface Water Treatment Rule · Failure to Filter (SWTR) (limit ) Resolved |
| Jun 2017 | A required step to remove or kill germs (filtration, disinfection or fixing a contaminated well) was not done properly. EPA record: Groundwater Rule · Treatment Technique (SWTR and GWR) (limit ) Resolved |
2 unresolved monitoring or reporting violations: Public Notice, Consumer Confidence Rule.
Health-based violations mean a contaminant exceeded a limit or a required treatment step was missed. Monitoring and reporting violations mean required tests or reports were late or missing, so the water's quality during that time is unknown. The total includes every violation in EPA's records, most of them paperwork.
Where it serves
Charles Town
ZIP codes the system reported serving: 25414, 25425, 25430, 25432, 25438, 25442
Nearby utilities
- Berkeley County Public Service Water District – Potomac River Martinsburg · 14 mi
- Morgantown Utility Board Morgantown · 113 mi
- New Martinsville Water System New Martinsville · 161 mi · PFAS above limit
- Weirton Area Water Board Weirton · 164 mi · PFAS above limit
- Pennsboro Water System Pennsboro · 165 mi · PFAS above limit
- Pleasants County Public Service District St. Marys · 178 mi · PFAS above limit
Questions
Is Wvaw – Walnut Grove Utilities water safe to drink?
Wvaw – Walnut Grove Utilities had 3 health-based violations since 2016, all since resolved. EPA testing found PFAS above the 2024 federal limits, which systems must meet by 2029. Federal data can't tell you about your own pipes: lead comes from service lines and plumbing, so test your tap if your home was built before 1986. For the official word, read the utility's annual Consumer Confidence Report.
Does Wvaw – Walnut Grove Utilities water have PFAS?
Yes. EPA's 2023–2025 testing of Wvaw – Walnut Grove Utilities found 7 PFAS at least once. The highest entry-point averages were above the federal limit for PFOS: PFOS 14.9 ppt (limit 4 ppt for PFOA and PFOS, 10 ppt for the others).
What is the lead level in Wvaw – Walnut Grove Utilities water?
The most recent 90th-percentile lead result for Wvaw – Walnut Grove Utilities is 3 ppb, for the period ending Dec 2025. The federal action level is 15 ppb, falling to 10 ppb in November 2027. The 90th percentile means 9 in 10 homes sampled were at or below this number. Individual homes can be higher.
Check these numbers yourself
Every figure on this page comes from public EPA records. You don't have to take our word for it:
- EPA's own report for WV3301942: violations, enforcement and inspections, straight from EPA.
- EPA UCMR 5 data: the PFAS and lithium results (search the file for PWSID WV3301942).
- EPA SDWIS download: the lead results, population and violation records we use.
- The utility's annual water quality report (Consumer Confidence Report): ask Wvaw – Walnut Grove Utilities at (304) 347-1510, or see EPA's guide to finding it.
Found something that doesn't match? Tell us and we'll check it against EPA's records. How we check our data.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.