Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Martinsburg, WV 25404
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Berkeley County.
Historical measurement record needs context
- Largest possible serving system
- Berkeley County Pswd-Potomac River
- Source water
- Surface water + Groundwater influenced by surface water + Groundwater
- County
- Berkeley County
- Profile updated
Your tap water
What does the utility report?
Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.
Utility hardness unavailable in this index
Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.
Find an official utility report →At a glance
What the current records say
EPA quarter 2026Q2
All possible systems
No active flag
0 active health-based records
Measurements by utility
Each result belongs to a specific system.
Utility match
7 systems
Serves 69,372 people system-wide
Match the name on your water bill
Your utility’s measurements and compliance records
These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.
EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.
Berkeley County Pswd-Potomac River
WV3300218 · Surface water · 69,372 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (2)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Copper (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 1.62 mg/L
- Action level
- 1.3 mg/L
125% of the listed benchmark
Monitoring period: Jul 1, 1995 to Dec 31, 1995
Violation history (6)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Oct 1, 2025 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2023 to Mar 7, 2024 |
| Public Notice | Unaddressed | Feb 12, 2022 |
| Lead and Copper Rule | Unaddressed | Oct 1, 2019 |
| Consumer Confidence Rule | Unaddressed | Oct 1, 2003 |
Martinsburg City Of
WV3300212 · Groundwater influenced by surface water · 16,250 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.0026 mg/L
- Action level
- 0.015 mg/L
17% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (38)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Oct 1, 2025 |
| Lead and Copper Rule | Unaddressed | Oct 1, 2025 |
| Interim Enhanced Surface Water Treatment Rule | Archived | Sep 1, 2025 to Sep 30, 2025 |
| Consumer Confidence Rule | Resolved | Oct 1, 2024 to Jan 16, 2025 |
| Chromium | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Chromium | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| CYANIDE | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Mercury | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Thallium, Total | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Selenium | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,2,4-Trichlorobenzene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| DICHLOROMETHANE | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| p-Dichlorobenzene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| trans-1,2-Dichloroethylene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,2-Dichloroethane | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Carbon tetrachloride | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,2-Dichloropropane | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Trichloroethylene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,1,2-Trichloroethane | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Tetrachloroethylene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| CHLOROBENZENE | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Toluene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Styrene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Antimony, Total | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Xylenes, Total | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| o-Dichlorobenzene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Nickel | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Fluoride | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Barium | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| cis-1,2-Dichloroethylene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Beryllium, Total | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Ethylbenzene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,1-Dichloroethylene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Benzene | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| 1,1,1-Trichloroethane | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Cadmium | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Vinyl chloride | Resolved | Jan 1, 2021 to Dec 31, 2021 |
| Consumer Confidence Rule | Unaddressed | Oct 1, 2020 |
Va Medical Center
WV3300227 · Groundwater influenced by surface water · 2,175 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (8)
| Rule | Status | Period |
|---|---|---|
| Surface Water Treatment Rule | Archived | Jun 1, 2025 to Jun 30, 2025 |
| Chlorine | Archived | Jun 1, 2025 to Jun 30, 2025 |
| Arsenic | Resolved | Jan 1, 2023 to Dec 31, 2023 |
| TTHM | Resolved | Oct 1, 2022 to Dec 31, 2022 |
| Total Haloacetic Acids (HAA5) | Resolved | Oct 1, 2022 to Dec 31, 2022 |
| Total Haloacetic Acids (HAA5) | Resolved | Jun 1, 2022 to Aug 31, 2022 |
| TTHM | Resolved | Jun 1, 2022 to Aug 31, 2022 |
| Nitrite | Resolved | Jan 1, 2021 to Mar 31, 2021 |
Rocky Glen Manufactured Housing Communit
WV3300231 · Groundwater · 861 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (11)
| Rule | Status | Period |
|---|---|---|
| Public Notice | Unaddressed | Nov 15, 2025 |
| Public Notice | Unaddressed | Nov 14, 2025 |
| Total Haloacetic Acids (HAA5) | Archived | Jan 1, 2025 to Dec 31, 2025 |
| TTHM | Archived | Jan 1, 2025 to Dec 31, 2025 |
| Lead and Copper Rule | Unaddressed | Oct 1, 2024 |
| Consumer Confidence Rule | Unaddressed | Oct 1, 2024 |
| Nitrate | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| Nitrate | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Nitrate | Resolved | Apr 1, 2023 to Jun 30, 2023 |
| Nitrate | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| Nitrate | Resolved | Oct 1, 2022 to Dec 31, 2022 |
Wvaw - Valley Water And Sewer-Deerwood
WV3300230 · Groundwater · 219 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.003 mg/L
- Action level
- 0.015 mg/L
20% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (7)
| Rule | Status | Period |
|---|---|---|
| Groundwater Rule | Archived | May 1, 2023 to May 31, 2023 |
| Public Notice | Resolved | Feb 15, 2023 to Jun 16, 2023 |
| Public Notice | Resolved | Nov 16, 2022 to Sep 18, 2023 |
| Total Polychlorinated Biphenyls (PCB) | Archived | Oct 1, 2021 to Dec 31, 2021 |
| Picloram | Archived | Jul 1, 2021 to Sep 30, 2021 |
| Consumer Confidence Rule | Unaddressed | Oct 1, 2020 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2019 |
Chestnut Ridge Water System
WV3300236 · Groundwater · 104 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.0073 mg/L
- Action level
- 0.015 mg/L
49% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (11)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
| Chlorine | Archived | Apr 1, 2025 to Apr 30, 2025 |
| Public Notice | Resolved | Feb 16, 2024 to Jun 20, 2025 |
| Public Notice | Resolved | Feb 16, 2024 to Jun 20, 2025 |
| Public Notice | Resolved | Feb 16, 2024 to Jun 20, 2025 |
| Public Notice | Resolved | Jul 15, 2023 to Feb 21, 2024 |
| Groundwater Rule | Resolved | Apr 1, 2023 to Apr 30, 2023 |
| Nitrate | Resolved | Oct 1, 2022 to Dec 31, 2022 |
| Groundwater Rule | Resolved | May 1, 2022 to May 31, 2022 |
| Nitrate | Resolved | Jan 1, 2022 to Mar 31, 2022 |
| Lead and Copper Rule | Unaddressed | Jan 1, 2020 |
Berkeley Estates
WV3300238 · Groundwater · 94 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 8.0e-4 mg/L
- Action level
- 0.015 mg/L
5% of the listed benchmark
Monitoring period: Jul 1, 2025 to Dec 31, 2025
Violation history (10)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Unaddressed | Sep 29, 2025 |
| Public Notice | Resolved | Feb 15, 2025 to Feb 6, 2026 |
| Lead and Copper Rule | Unaddressed | Jan 1, 2025 |
| Lead and Copper Rule | Unaddressed | Sep 29, 2024 |
| Lead and Copper Rule | Unaddressed | Jan 1, 2024 |
| Public Notice | Resolved | Nov 24, 2021 to Jan 30, 2024 |
| Lead and Copper Rule | Resolved | Jul 1, 2021 to Sep 22, 2021 |
| Lead and Copper Rule | Unaddressed | Oct 1, 2020 |
| Lead and Copper Rule | Unaddressed | Oct 1, 2019 |
| Consumer Confidence Rule | Unaddressed | Oct 1, 2018 |
Hardness meter
What does nearby environmental evidence show?
238
PPM as CaCO₃
Very Hard
PPM
238
GPG
13.9
Regional environmental evidence
USGS hardness classification scale
238 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
238
mg/L as CaCO₃ equivalent
Grains per gallon
13.9
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
11
Nearest site
5.1 mi
Observation range
Sep 27, 2017–Aug 24, 2022
Regional evidence confidence
Moderate
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: OPEQUON CREEK NEAR MARTINSBURG, WV (Stream).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
Is 25404 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Martinsburg median
244 PPM
6 PPM lower4 indexed ZIP readings · Range 238–250 PPM
West Virginia median
141 PPM
97 PPM higher169 indexed ZIP readings · Range 17.8–414 PPM
Evidence-first next steps
Confirm the problem before choosing treatment
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
Confirm the serving system
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
Read the current utility report
A reported action-level record needs context. Check its monitoring period and the utility's current report.
Find an official utility report →Test for the decision you face
Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Nearby indexed reports
More local profiles in Martinsburg
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Martinsburg
Is tap water safe in Martinsburg?+
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?+
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Do I need a water softener?+
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.