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HCWSD-PIEDMONT PWS

PWS ID: OH3401212 · CADIA, Ohio 43907

HCWSD-PIEDMONT PWS serves 178 people in CADIA, Ohio using Groundwater water sources. It has 269 recorded EPA violations, including 8 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: HCWSD-PIEDMONT PWS

HCWSD-PIEDMONT PWS is a private-owned community water system that delivers drinking water to 178 residents in CADIA, Ohio (Harrison County) through 73 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 269 total violations for this system , of which 8 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 233 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is BHC-GAMMA, recorded in 12 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Ohio, EPA tracks 4,181 public water systems serving 11,085,226 people, with 288,388 cumulative violations and 52,412 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. HCWSD-PIEDMONT PWS's 269 violations sit above the Ohio average. Statewide, 204 of 346 UCMR5-tested systems have reported PFAS detections (59%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
178
Total Violations
269
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
73
County
Harrison
School/Daycare
No
MCL Violations
8
Monitoring Violations
233
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
BHC-GAMMA MR 12 1994
Methoxychlor MR 12 1994
Toxaphene MR 12 1994
2,4,5-TP MR 12 1994
2,4-D MR 12 1994
Endrin MR 12 1994
Coliform (TCR) MR 11 2003
Coliform (TCR) MCL 8 2007
Total Haloacetic Acids (HAA5) MR 8 2015
TTHM MR 8 2015
Lead and Copper Rule MR 6 2016
Dalapon MR 4 1994
Diquat MR 4 1994
Endothall MR 4 1994
Simazine MR 4 1994
Di(2-ethylhexyl) phthalate MR 4 1994
Dinoseb MR 4 1994
Aldicarb sulfoxide MR 4 1994
Carbofuran MR 4 1994
Aldicarb MR 4 1994
LASSO MR 4 1994
HEXACHLOROBENZENE MR 4 1994
Total Polychlorinated Biphenyls (PCB) MR 4 1994
Consumer Confidence Rule Other 4 2020
Cadmium MR 4 1986
Chromium MR 4 1986
Fluoride MR 4 1986
Nitrate MR 4 1986
Selenium MR 4 1986
Mercury MR 4 1986

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for HCWSD-PIEDMONT PWS.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID OH3401212 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Ohio Drinking Water Authority

Ohio EPA — Division of Drinking and Ground Waters is the primacy agency that licenses and inspects HCWSD-PIEDMONT PWS under EPA-delegated authority.

Open OH regulator portal

Source: Ohio EPA — Division of Drinking and Ground Waters

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2020 Consumer Confidence Rule Other 4 SDWIS / OH3401212 / 7000
2016 Lead and Copper Rule MR 6 SDWIS / OH3401212 / 5000
2015 Total Haloacetic Acids (HAA5) MR 8 SDWIS / OH3401212 / 2456
2015 TTHM MR 8 SDWIS / OH3401212 / 2950
2007 Coliform (TCR) MCL 8 SDWIS / OH3401212 / 3100
2003 Coliform (TCR) MR 11 SDWIS / OH3401212 / 3100
1994 BHC-GAMMA MR 12 SDWIS / OH3401212 / 2010
1994 Methoxychlor MR 12 SDWIS / OH3401212 / 2015
1994 Toxaphene MR 12 SDWIS / OH3401212 / 2020
1994 2,4,5-TP MR 12 SDWIS / OH3401212 / 2110
1994 2,4-D MR 12 SDWIS / OH3401212 / 2105
1994 Endrin MR 12 SDWIS / OH3401212 / 2005
1994 Dalapon MR 4 SDWIS / OH3401212 / 2031
1994 Diquat MR 4 SDWIS / OH3401212 / 2032
1994 Endothall MR 4 SDWIS / OH3401212 / 2033

How HCWSD-PIEDMONT PWS Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric HCWSD-PIEDMONT PWS Ohio avg Federal benchmark
Total violations 269 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 8 12.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 59% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 178 2,651 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,181 regulated public water systems in Ohio.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is HCWSD-PIEDMONT PWS water safe to drink? ▼
HCWSD-PIEDMONT PWS (PWS ID: OH3401212) has 269 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 178 people using Groundwater sources.
How many people does HCWSD-PIEDMONT PWS serve? ▼
HCWSD-PIEDMONT PWS serves 178 people in CADIA, Ohio. It is a Private-owned system using Groundwater water sources with 73 service connections.
What type of violations does HCWSD-PIEDMONT PWS have? ▼
HCWSD-PIEDMONT PWS has 269 total violations: 8 health-based violations (MCL exceedances or treatment failures), 233 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in HCWSD-PIEDMONT PWS water? ▼
No PFAS testing data is available for HCWSD-PIEDMONT PWS under the EPA's UCMR5 monitoring program.
What water source does HCWSD-PIEDMONT PWS use? ▼
HCWSD-PIEDMONT PWS uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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