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COLONIAL HILLS MHP

PWS ID: OH7000312 · MANSFIELD, Ohio 44906

COLONIAL HILLS MHP serves 185 people in MANSFIELD, Ohio using Groundwater water sources. It has 321 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: COLONIAL HILLS MHP

COLONIAL HILLS MHP is a private-owned community water system that delivers drinking water to 185 residents in MANSFIELD, Ohio (Richland County) through 77 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 321 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 313 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 Coliform (TCR), recorded in 19 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. COLONIAL HILLS MHP's 321 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
185
Total Violations
321
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
77
County
Richland
School/Daycare
No
MCL Violations
0
Monitoring Violations
313
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 19 2006
Xylenes, Total MR 11 2001
Benzene MR 11 2001
1,2,4-Trichlorobenzene MR 11 2001
DICHLOROMETHANE MR 11 2001
1,2-Dichloroethane MR 11 2001
Ethylbenzene MR 11 2001
1,1-Dichloroethylene MR 11 2001
Carbon tetrachloride MR 11 2001
Trichloroethylene MR 11 2001
Toluene MR 11 2001
Styrene MR 11 2001
trans-1,2-Dichloroethylene MR 11 2001
o-Dichlorobenzene MR 11 2001
p-Dichlorobenzene MR 11 2001
cis-1,2-Dichloroethylene MR 11 2001
1,1,1-Trichloroethane MR 11 2001
CHLOROBENZENE MR 11 2001
Vinyl chloride MR 11 2001
Tetrachloroethylene MR 11 2001
1,1,2-Trichloroethane MR 11 2001
1,2-Dichloropropane MR 11 2001
Nitrate MR 8 2000
Arsenic MR 4 1998
Fluoride MR 4 1998
Antimony, Total MR 3 1998
Beryllium, Total MR 3 1998
Nickel MR 3 1998
Thallium, Total MR 3 1998
Consumer Confidence Rule Other 3 2020

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 COLONIAL HILLS MHP.

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 OH7000312 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 COLONIAL HILLS MHP 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 3 SDWIS / OH7000312 / 7000
2006 Coliform (TCR) MR 19 SDWIS / OH7000312 / 3100
2001 Xylenes, Total MR 11 SDWIS / OH7000312 / 2955
2001 Benzene MR 11 SDWIS / OH7000312 / 2990
2001 1,2,4-Trichlorobenzene MR 11 SDWIS / OH7000312 / 2378
2001 DICHLOROMETHANE MR 11 SDWIS / OH7000312 / 2964
2001 1,2-Dichloroethane MR 11 SDWIS / OH7000312 / 2980
2001 Ethylbenzene MR 11 SDWIS / OH7000312 / 2992
2001 1,1-Dichloroethylene MR 11 SDWIS / OH7000312 / 2977
2001 Carbon tetrachloride MR 11 SDWIS / OH7000312 / 2982
2001 Trichloroethylene MR 11 SDWIS / OH7000312 / 2984
2001 Toluene MR 11 SDWIS / OH7000312 / 2991
2001 Styrene MR 11 SDWIS / OH7000312 / 2996
2001 trans-1,2-Dichloroethylene MR 11 SDWIS / OH7000312 / 2979
2001 o-Dichlorobenzene MR 11 SDWIS / OH7000312 / 2968

How COLONIAL HILLS MHP Compares

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

Metric COLONIAL HILLS MHP Ohio avg Federal benchmark
Total violations 321 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 185 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 COLONIAL HILLS MHP water safe to drink? ▼
COLONIAL HILLS MHP (PWS ID: OH7000312) has 321 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 185 people using Groundwater sources.
How many people does COLONIAL HILLS MHP serve? ▼
COLONIAL HILLS MHP serves 185 people in MANSFIELD, Ohio. It is a Private-owned system using Groundwater water sources with 77 service connections.
What type of violations does COLONIAL HILLS MHP have? ▼
COLONIAL HILLS MHP has 321 total violations: 0 health-based violations (MCL exceedances or treatment failures), 313 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in COLONIAL HILLS MHP water? ▼
No PFAS testing data is available for COLONIAL HILLS MHP under the EPA's UCMR5 monitoring program.
What water source does COLONIAL HILLS MHP use? ▼
COLONIAL HILLS MHP 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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