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Community Water System · PWS MO6036135

Hillshine Acres Subd

Aurora, Missouri 65605-0000 - drinking water served from groundwater sources to 80 people, tracked in EPA SDWIS and UCMR5.

80
People served
208
EPA violations
13
Health-based
Untested
UCMR5 result

The verdict

EPA records 208 drinking-water violations at Hillshine Acres Subd, 6% of them health-based - above the Missouri per-system average.

208
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
80
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Hillshine Acres Subd

Hillshine Acres Subd is a private-owned community water system that delivers drinking water to 80 residents in Aurora, Missouri (Franklin County) through 33 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 208 total violations for this system , of which 13 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 168 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 Coliform (TCR), recorded in 87 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%).

Hillshine Acres Subd's 208 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
80
Total Violations
208
Health-Based Violations
13
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
33
County
Franklin
School/Daycare
No
MCL Violations
13
Monitoring Violations
168
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 87 2000
Coliform (TCR) MCL 13 2000
Arsenic MR 9 1984
Barium MR 9 1984
Cadmium MR 9 1984
Chromium MR 9 1984
Fluoride MR 9 1984
Mercury MR 9 1984
Nitrate MR 8 1983
Selenium MR 8 1983
Nitrate-Nitrite MR 5 1999
Revised Total Coliform Rule MON 4 2025
Consumer Confidence Rule Other 3 1999
Lead and Copper Rule MR 2 1996

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 Hillshine Acres Subd.

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 MO6036135 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 Hillshine Acres Subd 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 Revised Total Coliform Rule MON 4 SDWIS / MO6036135 / 8000
2000 Coliform (TCR) MR 87 SDWIS / MO6036135 / 3100
2000 Coliform (TCR) MCL 13 SDWIS / MO6036135 / 3100
1999 Nitrate-Nitrite MR 5 SDWIS / MO6036135 / 1038
1999 Consumer Confidence Rule Other 3 SDWIS / MO6036135 / 7000
1996 Lead and Copper Rule MR 2 SDWIS / MO6036135 / 5000
1984 Arsenic MR 9 SDWIS / MO6036135 / 1005
1984 Barium MR 9 SDWIS / MO6036135 / 1010
1984 Cadmium MR 9 SDWIS / MO6036135 / 1015
1984 Chromium MR 9 SDWIS / MO6036135 / 1020
1984 Fluoride MR 9 SDWIS / MO6036135 / 1025
1984 Mercury MR 9 SDWIS / MO6036135 / 1035
1983 Nitrate MR 8 SDWIS / MO6036135 / 1040
1983 Selenium MR 8 SDWIS / MO6036135 / 1045

How Hillshine Acres Subd Compares

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

Metric Hillshine Acres Subd Missouri avg Federal benchmark
Total violations 208 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 80 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 Hillshine Acres Subd water safe to drink? ▼
Hillshine Acres Subd (PWS ID: MO6036135) has 208 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 80 people using Groundwater sources.
How many people does Hillshine Acres Subd serve? ▼
Hillshine Acres Subd serves 80 people in Aurora, Missouri. It is a Private-owned system using Groundwater water sources with 33 service connections.
What type of violations does Hillshine Acres Subd have? ▼
Hillshine Acres Subd has 208 total violations: 13 health-based violations (MCL exceedances or treatment failures), 168 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Hillshine Acres Subd water? ▼
No PFAS testing data is available for Hillshine Acres Subd under the EPA's UCMR5 monitoring program.
What water source does Hillshine Acres Subd use? ▼
Hillshine Acres Subd 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.