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Local water dashboard

Official source aggregation

Water quality in Mason, WV 25260

A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Mason County.

No active health-based violation reported
Primary matched system
Mason Water Dept
Source water
Groundwater
County
Mason County
Profile updated

At a glance

What the current records say

Hardness

Moderately Hard

110 PPM · 6.4 GPG

Compliance screen

No active flag

0 active health-based records

Lead 90th percentile

0.0053 mg/L

35% of action level

Utility match

1 system

Serves 1,679 people system-wide

Hardness meter

How hard is the water?

Moderately Hard

Estimated local hardness

USGS hardness classification scale

110 PPM

Soft
0–59
Moderate
60–120
Hard
121–180
Very hard
181+

Parts per million

110

mg/L as CaCO₃ equivalent

Grains per gallon

6.4

1 GPG ≈ 17.1 PPM

What this means at home

At 110 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.

USGS sites used

50

Nearest site

12.6 mi

Observation range

Jun 1, 2016–Aug 17, 2023

Estimate confidence

Moderate

Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: OH5300612 Meigs 01010 Production Well 0004 (Well).USGS source documentation ↗

Regional context

Is 25260 typical?

These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.

Mason median

110 PPM

About the same

1 indexed ZIP readings · Range 110–110 PPM

West Virginia median

141 PPM

31 PPM lower

219 indexed ZIP readings · Range 85.5–265 PPM

EPA benchmark screen

Contaminant snapshot

Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.

1 pass

Lead (PB90)

0.0053 mg/L

Reported Dec 31, 2025

Copper (CU90)

Not available

No numerical 90th-percentile result

Numerical coverage

1 comparable result

Missing values remain blank; absence is not treated as a pass.

Lead (90th percentile)

Measured in mg/L

Pass

Local 0.0053

EPA limit 0.015

Local level is 35% of the listed EPA limit.

Share of EPA benchmark

100% line = listed limit

EPA SDWIS compliance

Reported violation history

Open EPA source documentation ↗
2026Q2
All records
29
Health-based
0
Active health-based
0
Contaminant or ruleSystemStatusPeriod
Public NoticeWV3302708UnaddressedNov 15, 2025
Groundwater RuleWV3302708ArchivedOct 1, 2025through Oct 31, 2025
Lead and Copper RuleWV3302708UnaddressedOct 1, 2025
Public NoticeWV3302708UnaddressedAug 14, 2025
Consumer Confidence RuleWV3302708ResolvedJul 1, 2025through Jul 24, 2025
Public NoticeWV3302708UnaddressedJun 15, 2025
ChlorineWV3302708ResolvedApr 1, 2025through Apr 30, 2025
NitrateWV3302708ArchivedApr 1, 2025through Jun 30, 2025
ChlorineWV3302708ResolvedMar 1, 2025through Mar 31, 2025
Consumer Confidence RuleWV3302708UnaddressedJul 1, 2024
NitrateWV3302708ResolvedJul 1, 2024through Sep 30, 2024
ChlorineWV3302708ResolvedApr 1, 2024through Apr 30, 2024
NitrateWV3302708ResolvedApr 1, 2024through Jun 30, 2024
Public NoticeWV3302708ResolvedAug 13, 2023through Dec 6, 2023
NitrateWV3302708ResolvedApr 1, 2023through Jun 30, 2023
Public NoticeWV3302708ResolvedMar 16, 2023through Dec 6, 2023
Lead and Copper RuleWV3302708UnaddressedJan 1, 2023
Lead and Copper RuleWV3302708UnaddressedSep 29, 2022
Public NoticeWV3302708ResolvedMay 15, 2022through Mar 21, 2022
NitrateWV3302708ResolvedApr 1, 2022through Jun 30, 2022

No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.

Solutions matcher

Your personalized water action plan

Matched to Mason ZIP 25260 using 110 PPM nearby hardness and 1 reported measurement benchmarks.

0 matches

No urgent match

Start with an independent water test

This profile does not trigger a treatment recommendation. Test at the tap before investing in equipment.

Affiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.

Frequently asked

Water questions for Mason

Is tap water safe in Mason?+

EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.

How hard is the water?+

Nearby USGS observations produce an estimate of 110 PPM, or 6.4 grains per gallon, classified as moderately hard. This is not a household tap measurement.

Do I need a water softener?+

There is no high-hardness trigger in this profile. Confirm with a tap test before buying equipment.