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Community Water System · PWS MO6031193

Tara Valley Homeowners Assn

Troy, Missouri 63379-0000 - drinking water served from groundwater sources to 60 people, tracked in EPA SDWIS and UCMR5.

60
People served
254
EPA violations
164
Health-based
Untested
UCMR5 result

The verdict

EPA records 254 drinking-water violations at Tara Valley Homeowners Assn, 65% of them health-based - above the Missouri per-system average.

254
Total EPA violations on record
65%
Health-based (MCL / treatment failure)
60
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Tara Valley Homeowners Assn

Tara Valley Homeowners Assn is a private-owned community water system that delivers drinking water to 60 residents in Troy, Missouri (Lincoln County) through 30 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 254 total violations for this system , of which 164 (65%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 81 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 Combined Radium (-226 and -228), recorded in 95 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%).

Tara Valley Homeowners Assn's 254 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
60
Total Violations
254
Health-Based Violations
164
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
30
County
Lincoln
School/Daycare
No
MCL Violations
164
Monitoring Violations
81
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 95 2024
Gross Alpha, Excl. Radon and U MCL 69 2014
Coliform (TCR) MR 53 2001
Radium-226 MR 10 2018
Radium-228 MR 10 2018
Revised Total Coliform Rule MON 8 2019
Consumer Confidence Rule Other 5 2019
Public Notice Other 2 2025

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 Tara Valley Homeowners Assn.

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 MO6031193 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 Tara Valley Homeowners Assn 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
2025 Public Notice Other 2 SDWIS / MO6031193 / 7500
2024 Combined Radium (-226 and -228) MCL 95 SDWIS / MO6031193 / 4010
2019 Revised Total Coliform Rule MON 8 SDWIS / MO6031193 / 8000
2019 Consumer Confidence Rule Other 5 SDWIS / MO6031193 / 7000
2018 Radium-226 MR 10 SDWIS / MO6031193 / 4020
2018 Radium-228 MR 10 SDWIS / MO6031193 / 4030
2014 Gross Alpha, Excl. Radon and U MCL 69 SDWIS / MO6031193 / 4000
2001 Coliform (TCR) MR 53 SDWIS / MO6031193 / 3100

How Tara Valley Homeowners Assn Compares

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

Metric Tara Valley Homeowners Assn Missouri avg Federal benchmark
Total violations 254 71.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 164 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 60 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 Tara Valley Homeowners Assn water safe to drink? ▼
Tara Valley Homeowners Assn (PWS ID: MO6031193) has 254 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 60 people using Groundwater sources.
How many people does Tara Valley Homeowners Assn serve? ▼
Tara Valley Homeowners Assn serves 60 people in Troy, Missouri. It is a Private-owned system using Groundwater water sources with 30 service connections.
What type of violations does Tara Valley Homeowners Assn have? ▼
Tara Valley Homeowners Assn has 254 total violations: 164 health-based violations (MCL exceedances or treatment failures), 81 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Tara Valley Homeowners Assn water? ▼
No PFAS testing data is available for Tara Valley Homeowners Assn under the EPA's UCMR5 monitoring program.
What water source does Tara Valley Homeowners Assn use? ▼
Tara Valley Homeowners Assn 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.