PlainWater
States → Missouri

Community Water System · PWS MO1024241

Harrison County PWSD 1

Eagleville, Missouri 64442-0000 - drinking water served from groundwater sources to 823 people, tracked in EPA SDWIS and UCMR5.

823
People served
166
EPA violations
123
Health-based
Untested
UCMR5 result

The verdict

EPA records 166 drinking-water violations at Harrison County PWSD 1, 74% of them health-based - above the Missouri per-system average.

166
Total EPA violations on record
74%
Health-based (MCL / treatment failure)
823
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Harrison County PWSD 1

Harrison County PWSD 1 is a local-owned community water system that delivers drinking water to 823 residents in Eagleville, Missouri (Harrison County) through 349 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 166 total violations for this system , of which 123 (74%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 42 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is TTHM, recorded in 35 violations (MCL, health-based). 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%).

Harrison County PWSD 1's 166 violations sit above 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
823
Total Violations
166
Health-Based Violations
123
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
349
County
Harrison
School/Daycare
No
MCL Violations
81
Monitoring Violations
42
Treatment Tech Violations
42

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 35 2016
Total Haloacetic Acids (HAA5) MCL 30 2005
CARBON, TOTAL TT 24 2005
Interim Enhanced Surface Water Treatment Rule TT 18 2007
Coliform (TCR) MCL 16 2004
Revised Total Coliform Rule MON 16 2023
Coliform (TCR) MR 11 2005
Interim Enhanced Surface Water Treatment Rule MR 6 2007
Total Haloacetic Acids (HAA5) MR 3 2008
TTHM MR 3 2008
CARBON, TOTAL MR 3 2008
Consumer Confidence Rule Other 1 2014

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 Harrison County PWSD 1.

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 MO1024241 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 Harrison County PWSD 1 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
2023 Revised Total Coliform Rule MON 16 SDWIS / MO1024241 / 8000
2016 TTHM MCL 35 SDWIS / MO1024241 / 2950
2014 Consumer Confidence Rule Other 1 SDWIS / MO1024241 / 7000
2008 Total Haloacetic Acids (HAA5) MR 3 SDWIS / MO1024241 / 2456
2008 TTHM MR 3 SDWIS / MO1024241 / 2950
2008 CARBON, TOTAL MR 3 SDWIS / MO1024241 / 2920
2007 Interim Enhanced Surface Water Treatment Rule TT 18 SDWIS / MO1024241 / 0300
2007 Interim Enhanced Surface Water Treatment Rule MR 6 SDWIS / MO1024241 / 0300
2005 Total Haloacetic Acids (HAA5) MCL 30 SDWIS / MO1024241 / 2456
2005 CARBON, TOTAL TT 24 SDWIS / MO1024241 / 2920
2005 Coliform (TCR) MR 11 SDWIS / MO1024241 / 3100
2004 Coliform (TCR) MCL 16 SDWIS / MO1024241 / 3100

How Harrison County PWSD 1 Compares

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

Metric Harrison County PWSD 1 Missouri avg Federal benchmark
Total violations 166 71.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 123 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 823 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 Harrison County PWSD 1 water safe to drink? ▼
Harrison County PWSD 1 (PWS ID: MO1024241) has 166 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 823 people using Groundwater sources.
How many people does Harrison County PWSD 1 serve? ▼
Harrison County PWSD 1 serves 823 people in Eagleville, Missouri. It is a Local-owned system using Groundwater water sources with 349 service connections.
What type of violations does Harrison County PWSD 1 have? ▼
Harrison County PWSD 1 has 166 total violations: 123 health-based violations (MCL exceedances or treatment failures), 42 monitoring/reporting violations, and 42 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Harrison County PWSD 1 water? ▼
No PFAS testing data is available for Harrison County PWSD 1 under the EPA's UCMR5 monitoring program.
What water source does Harrison County PWSD 1 use? ▼
Harrison County PWSD 1 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.