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Community Water System · PWS OH1200412

Chateau Estates MHP PWS

Cincinnati, Ohio 45241 - drinking water served from groundwater sources to 430 people, tracked in EPA SDWIS and UCMR5.

430
People served
110
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 110 drinking-water violations at Chateau Estates MHP PWS, 2% of them health-based - above the Ohio per-system average.

110
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
430
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Chateau Estates MHP PWS

Chateau Estates MHP PWS is a private-owned community water system that delivers drinking water to 430 residents in Cincinnati, Ohio (Clark County) through 278 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 110 total violations for this system , of which 2 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 103 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 13 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. Statewide, 204 of 346 UCMR5-tested systems have reported PFAS detections (59%).

Chateau Estates MHP PWS's 110 violations sit above the Ohio average.

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
430
Total Violations
110
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
278
County
Clark
School/Daycare
No
MCL Violations
0
Monitoring Violations
103
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 13 1995
Nitrate MR 9 2004
Nitrite MR 8 2004
Coliform (TCR) MR 7 2016
Antimony, Total MR 5 1993
Barium MR 5 1993
Cadmium MR 5 1993
Selenium MR 5 1993
Thallium, Total MR 5 1993
Arsenic MR 5 1993
Asbestos MR 5 1993
Chromium MR 5 1993
CYANIDE MR 5 1993
Beryllium, Total MR 5 1993
Nickel MR 5 1993
Fluoride MR 5 1993
Mercury MR 5 1993
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 2025
Gross Alpha, Excl. Radon and U MR 1 1988

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 Chateau Estates MHP 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 OH1200412 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 Chateau Estates MHP 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
2025 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 SDWIS / OH1200412 / 0400
2016 Coliform (TCR) MR 7 SDWIS / OH1200412 / 3100
2004 Nitrate MR 9 SDWIS / OH1200412 / 1040
2004 Nitrite MR 8 SDWIS / OH1200412 / 1041
1995 Lead and Copper Rule MR 13 SDWIS / OH1200412 / 5000
1993 Antimony, Total MR 5 SDWIS / OH1200412 / 1074
1993 Barium MR 5 SDWIS / OH1200412 / 1010
1993 Cadmium MR 5 SDWIS / OH1200412 / 1015
1993 Selenium MR 5 SDWIS / OH1200412 / 1045
1993 Thallium, Total MR 5 SDWIS / OH1200412 / 1085
1993 Arsenic MR 5 SDWIS / OH1200412 / 1005
1993 Asbestos MR 5 SDWIS / OH1200412 / 1094
1993 Chromium MR 5 SDWIS / OH1200412 / 1020
1993 CYANIDE MR 5 SDWIS / OH1200412 / 1024
1993 Beryllium, Total MR 5 SDWIS / OH1200412 / 1075

How Chateau Estates MHP PWS Compares

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

Metric Chateau Estates MHP PWS Ohio avg Federal benchmark
Total violations 110 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 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 430 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Chateau Estates MHP PWS water safe to drink? ▼
Chateau Estates MHP PWS (PWS ID: OH1200412) has 110 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 430 people using Groundwater sources.
How many people does Chateau Estates MHP PWS serve? ▼
Chateau Estates MHP PWS serves 430 people in Cincinnati, Ohio. It is a Private-owned system using Groundwater water sources with 278 service connections.
What type of violations does Chateau Estates MHP PWS have? ▼
Chateau Estates MHP PWS has 110 total violations: 2 health-based violations (MCL exceedances or treatment failures), 103 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Chateau Estates MHP PWS water? ▼
No PFAS testing data is available for Chateau Estates MHP PWS under the EPA's UCMR5 monitoring program.
What water source does Chateau Estates MHP PWS use? ▼
Chateau Estates MHP 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.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.