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Community Water System · PWS MO6031327

Quail Run MHP

Des Peres, Missouri 63131-0000 - drinking water served from groundwater sources to 897 people, tracked in EPA SDWIS and UCMR5.

897
People served
56
EPA violations
13
Health-based
Untested
UCMR5 result

The verdict

EPA records 56 drinking-water violations at Quail Run MHP, 23% of them health-based - below the Missouri per-system average.

56
Total EPA violations on record
23%
Health-based (MCL / treatment failure)
897
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Quail Run MHP

Quail Run MHP is a private-owned community water system that delivers drinking water to 897 residents in Des Peres, Missouri (Lincoln County) through 149 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 56 total violations for this system , of which 13 (23%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 31 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 Lead and Copper Rule, recorded in 14 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 Missouri, EPA tracks 2,823 public water systems serving 5,855,885 people, with 201,695 cumulative violations and 54,821 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 71.4 violations. Statewide, 162 of 230 UCMR5-tested systems have reported PFAS detections (70.4%).

Quail Run MHP's 56 violations sit below the Missouri 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
897
Total Violations
56
Health-Based Violations
13
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
149
County
Lincoln
School/Daycare
No
MCL Violations
0
Monitoring Violations
31
Treatment Tech Violations
13

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 14 2015
Groundwater Rule TT 13 2023
Coliform (TCR) MR 4 2010
TTHM MR 4 2016
Total Haloacetic Acids (HAA5) MR 4 2016
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 4 2016
Consumer Confidence Rule Other 3 2022
Public Notice Other 2 2023
Nitrate-Nitrite MR 1 2007
LEAD AND COPPER RULE REVISIONS RPT 1 2024

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 Quail Run 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 MO6031327 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Missouri Drinking Water Authority

Missouri DNR, Public Drinking Water Branch is the primacy agency that licenses and inspects Quail Run MHP under EPA-delegated authority.

Open MO regulator portal

Source: Missouri DNR, Public Drinking Water Branch

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 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / MO6031327 / 5200
2023 Groundwater Rule TT 13 SDWIS / MO6031327 / 0700
2023 Public Notice Other 2 SDWIS / MO6031327 / 7500
2022 Consumer Confidence Rule Other 3 SDWIS / MO6031327 / 7000
2016 TTHM MR 4 SDWIS / MO6031327 / 2950
2016 Total Haloacetic Acids (HAA5) MR 4 SDWIS / MO6031327 / 2456
2016 Stage 2 Disinfectants and Disinfection Byproducts Rule MR 4 SDWIS / MO6031327 / 0600
2015 Lead and Copper Rule MR 14 SDWIS / MO6031327 / 5000
2010 Coliform (TCR) MR 4 SDWIS / MO6031327 / 3100
2007 Nitrate-Nitrite MR 1 SDWIS / MO6031327 / 1038

How Quail Run MHP Compares

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

Metric Quail Run MHP Missouri avg Federal benchmark
Total violations 56 71.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 13 19.4 Indicates a contaminant exceeded a federal MCL
PFAS detection None 70.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 897 2,074 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,823 regulated public water systems in Missouri.

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 Quail Run MHP water safe to drink? ▼
Quail Run MHP (PWS ID: MO6031327) has 56 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 897 people using Groundwater sources.
How many people does Quail Run MHP serve? ▼
Quail Run MHP serves 897 people in Des Peres, Missouri. It is a Private-owned system using Groundwater water sources with 149 service connections.
What type of violations does Quail Run MHP have? ▼
Quail Run MHP has 56 total violations: 13 health-based violations (MCL exceedances or treatment failures), 31 monitoring/reporting violations, and 13 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Quail Run MHP water? ▼
No PFAS testing data is available for Quail Run MHP under the EPA's UCMR5 monitoring program.
What water source does Quail Run MHP use? ▼
Quail Run 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.
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.