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SCIO PWS

PWS ID: OH3401312 · SCIO, Ohio 43988

SCIO PWS serves 763 people in SCIO, Ohio using Groundwater water sources. It has 448 recorded EPA violations, including 13 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: SCIO PWS

SCIO PWS is a local-owned community water system that delivers drinking water to 763 residents in SCIO, Ohio (Harrison County) through 342 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 448 total violations for this system , of which 13 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 422 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 28 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. SCIO PWS's 448 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
763
Total Violations
448
Health-Based Violations
13
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
342
County
Harrison
School/Daycare
No
MCL Violations
11
Monitoring Violations
422
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 28 2014
2,4,5-TP MR 14 1994
BHC-GAMMA MR 14 1994
Toxaphene MR 14 1994
2,4-D MR 14 1994
Methoxychlor MR 14 1994
Endrin MR 14 1994
Simazine MR 11 1996
LASSO MR 11 1996
Atrazine MR 11 1996
Coliform (TCR) MCL 11 2013
Consumer Confidence Rule Other 10 2024
Lead and Copper Rule MR 8 2012
Dalapon MR 8 1994
Glyphosate MR 8 1994
Di(2-ethylhexyl) phthalate MR 8 1994
Picloram MR 8 1994
Hexachlorocyclopentadiene MR 8 1994
Aldicarb sulfoxide MR 8 1994
Aldicarb MR 8 1994
Heptachlor MR 8 1994
HEXACHLOROBENZENE MR 8 1994
Benzo(a)pyrene MR 8 1994
1,2-DIBROMO-3-CHLOROPROPANE MR 8 1994
ETHYLENE DIBROMIDE MR 8 1994
Chlordane MR 8 1994
Diquat MR 8 1994
Endothall MR 8 1994
Di(2-ethylhexyl) adipate MR 8 1994
OXAMYL MR 8 1994

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 SCIO 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 OH3401312 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 SCIO 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
2024 Consumer Confidence Rule Other 10 SDWIS / OH3401312 / 7000
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / OH3401312 / 5200
2016 E. COLI MR 6 SDWIS / OH3401312 / 3014
2014 Coliform (TCR) MR 28 SDWIS / OH3401312 / 3100
2013 Coliform (TCR) MCL 11 SDWIS / OH3401312 / 3100
2012 Lead and Copper Rule MR 8 SDWIS / OH3401312 / 5000
1996 Simazine MR 11 SDWIS / OH3401312 / 2037
1996 LASSO MR 11 SDWIS / OH3401312 / 2051
1996 Atrazine MR 11 SDWIS / OH3401312 / 2050
1994 2,4,5-TP MR 14 SDWIS / OH3401312 / 2110
1994 BHC-GAMMA MR 14 SDWIS / OH3401312 / 2010
1994 Toxaphene MR 14 SDWIS / OH3401312 / 2020
1994 2,4-D MR 14 SDWIS / OH3401312 / 2105
1994 Methoxychlor MR 14 SDWIS / OH3401312 / 2015
1994 Endrin MR 14 SDWIS / OH3401312 / 2005

How SCIO PWS Compares

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

Metric SCIO PWS Ohio avg Federal benchmark
Total violations 448 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 13 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 763 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 SCIO PWS water safe to drink? ▼
SCIO PWS (PWS ID: OH3401312) has 448 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 763 people using Groundwater sources.
How many people does SCIO PWS serve? ▼
SCIO PWS serves 763 people in SCIO, Ohio. It is a Local-owned system using Groundwater water sources with 342 service connections.
What type of violations does SCIO PWS have? ▼
SCIO PWS has 448 total violations: 13 health-based violations (MCL exceedances or treatment failures), 422 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in SCIO PWS water? ▼
No PFAS testing data is available for SCIO PWS under the EPA's UCMR5 monitoring program.
What water source does SCIO PWS use? ▼
SCIO 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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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial