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WaterVerge

Water quality report · updated Jul 2026

Is Slab Fork, WV Tap Water Safe to Drink?

Graded B-, with 6 unresolved violations on record. See what was cited — and what it means for your tap. What to do ↓

0 contaminants over a legal limit
2.4 ppb lead, 90th percentile · low
6 unresolved violations
550 people served by 1 water system

PWSID WV3304120 · moderate data confidence · local government utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
B 73.4 / 100

#85 of 245West Virginia cities
How we grade →

01The verdict: is Slab Fork water safe?

Slab Fork's drinking water has significant quality concerns based on EPA testing data. With a grade of B- (73.4/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 550 residents using surface water (rivers, lakes, or reservoirs).

The concern

6 unresolved violations on record

EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 2.4 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

8 violations in the last five years

Recent compliance history is the best predictor of future problems — the year-by-year record is below.

See the record ↓

Slab Fork's drinking water received a grade of B- (73.4 out of 100), indicating fair water quality. The city's 1 water system serves approximately 550 residents using purchased surface water.

Lead levels were measured at 2.4 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program. The system has 49 violations on record, including 7 health-based violations. 6 remain unresolved.

Slab Fork ranks #85 out of 245 cities in West Virginia for water quality, placing it mid-range in the state. The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection. As a small community water system, Slab Fork may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities. The system has seen 8 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

How the 73.4/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
24.4 / 45D
Lead & CopperLead at 2.4 ppb (90th percentile).
20 / 20A
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
8 / 10B
Source RiskWater source: Purchased surface water.
4 / 5B

02What's in Slab Fork's water

Every contaminant flagged in Slab Fork, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

1 detection · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
1 contaminant tested under EPA SDWIS, LCR and UCMR programs · 1 detected · not yet tested for PFAS under UCMR 5

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 2.4 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Slab Fork's ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 49 violations on record, including 7 health-based violations. 6 remain unresolved.

8 of the last ten years were clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.

6 health-based in 10 yrs 2 monitoring & paperwork 2 still unresolved
UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Slab Fork's water quality assessment. Grade: B- (73.4/100).
Violation1 drinking water violation recorded1 health-based. Contaminants: Total Haloacetic Acids (HAA5).Resolved
Violation1 drinking water violation recorded1 health-based. Contaminants: Total Haloacetic Acids (HAA5).Resolved
Violation1 drinking water violation recorded1 health-based. Contaminants: Total Haloacetic Acids (HAA5).Resolved
DisasterHURRICANE SANDYFederal disaster declaration (FEMA DR-4093). Hurricane event — may have impacted local water infrastructure.
DisasterHURRICANE SANDYFederal disaster declaration (FEMA DR-3358). Hurricane event — may have impacted local water infrastructure.
Lead, 90th percentileppb · lower is better
0200400600800EPA action level · 15 ppb1999 — 5 ppb2001 — 5 ppb2002 — 5 ppb2004 — 2 ppb2007 — 5.8 ppb2010 — 682 ppb2011 — 2.7 ppb2013 — 2.7 ppb2014 — 3.3 ppb2016 — 3.3 ppb2017 — 0.27 ppb2020 — 0.32 ppb2023 — 2.4 ppb52.419992004201120162023

Down 2.6 ppb since 1999. Latest reading: 2.4 ppb (2023) — 16% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Slab Fork's water comes from

Slab Fork's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Source

Purchased Surface Water

Rivers, lakes, or reservoirs — more exposed to runoff, agriculture, and seasonal swings than groundwater.

Treatment

Wholesale supplier

Multi-barrier treatment: coagulation, sedimentation, filtration, and disinfection to meet EPA standards.

Distribution

1 system

1 water system, operated under local government ownership.

Delivery

550 people

Residents served across Slab Fork's service area.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards. These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge. The system is operated by local government ownership and serves approximately 550 people through 1 water system.

System namePWSIDPopulationSource
RALEIGH COUNTY PSD SLAB FORK WV3304120 550 Purchased Surface Water

Water bodies near Slab Fork

Piney Creek · river

As a surface-water system, these water bodies may directly influence Slab Fork's drinking water supply.

05Pressure on Slab Fork's watershed

Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.

Flood & storm history

Recurring — declared disasters

10 federal disaster declarations on record for Raleigh County. Flooding and severe storms can overwhelm treatment plants, cause sewage overflows, and push runoff into supplies.

HURRICANE SANDY Nov 2012 · DR-4093
HURRICANE SANDY Oct 2012 · DR-3358
HURRICANE KATRINA EVACUATION Sep 2005 · DR-3221

Drought

D2 — severe drought

Raleigh County is in D2 (severe drought) per the U.S. Drought Monitor (week of Jul 2026). Drought can raise disinfection-byproduct levels and taste/odor issues as utilities draw from lower reservoirs.

Current streak at D2+ severity12 wks
Weeks at D2+ in the last 5 years12 wks
Months in D2+ over the last 30 years7.4%

06How Slab Fork compares

Scores for nearby West Virginia cities on one line, with the average marked.

Charleston
90.1 · A
Beckley
90 · A-
Huntington
89.7 · A-
Slab Fork (this city)
73.4 · B-
Martinsburg
40.2 · F
Morgantown
39.4 · F

dashed line = West Virginia average (68/100)

Slab Fork scores 73.4/100above the West Virginia average of 68/100. It outscores 5 of 10 nearby cities. Full West Virginia rankings →

Raleigh water quality rankings
Compare all cities in the county — grades, violations, and contaminant data side by side.

07What to do at home

Steps matched to what testing actually found in Slab Fork's water — not generic advice.

Extra protection

A basic carbon filter still helps

Slab Fork's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.

Compare tested filters →
Know your report

Read your utility's annual report

Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.

How to read a CCR →
Stay informed

Watch for Slab Fork alerts

This area has a history of flood declarations — after severe weather, watch for boil-water advisories from the utility, and check the live alerts on this page.

All water alerts →

Frequently asked questions

Is Slab Fork, WV tap water safe to drink?

Slab Fork's water quality earned a grade of B- (73.4/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #85 out of 245 cities tested in West Virginia.

What contaminants are in Slab Fork's water?

Lead was measured at 2.4 ppb (90th percentile). 49 violations are on record.

How is Slab Fork's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Slab Fork?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Slab Fork's water come from?

Slab Fork's water is sourced from Purchased surface water. The city has 1 water system serving approximately 550 residents.

What health violations has Slab Fork's water system had?

Slab Fork has 7 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 6 violations remain unresolved.

How does Slab Fork's water compare to other cities?

Slab Fork ranks #85 out of 245 cities in West Virginia (better than 65% of state cities) and #9960 out of 15382 cities nationally (35th percentile). The grade of B- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Slab Fork's small water system affect quality?

Slab Fork's system serves approximately 550 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 49 violations on record.

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About Slab Fork, WV: Sophia is a town in Raleigh County, West Virginia, United States. It was incorporated in 1912. The population was 1,124 at the 2020 census. Wikipedia → Service area: 1 ZIP code across Raleigh.
Show ZIP codes 25920
Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.