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CHEROKEE RWS- MILL CREEK SUBSYSTEM

PWS ID: IA1800900 · CHEROKEE, Iowa 51012

CHEROKEE RWS- MILL CREEK SUBSYSTEM serves 1,451 people in CHEROKEE, Iowa using Groundwater water sources. It has 12 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CHEROKEE RWS- MILL CREEK SUBSYSTEM

CHEROKEE RWS- MILL CREEK SUBSYSTEM is a private-owned community water system that delivers drinking water to 1,451 residents in CHEROKEE, Iowa (Cherokee County) through 603 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 12 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 12 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 4 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 Iowa, EPA tracks 1,795 public water systems serving 3,114,444 people, with 138,271 cumulative violations and 27,946 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 77 violations. CHEROKEE RWS- MILL CREEK SUBSYSTEM's 12 violations sit below the Iowa average. Statewide, 127 of 152 UCMR5-tested systems have reported PFAS detections (83.6%). 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
1,451
Total Violations
12
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
603
County
Cherokee
School/Daycare
No
MCL Violations
0
Monitoring Violations
12
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 4 2015
Nitrate MR 1 1980
Chromium MR 1 1980
Arsenic MR 1 1980
Fluoride MR 1 1980
Barium MR 1 1980
Cadmium MR 1 1980
Selenium MR 1 1980
Mercury MR 1 1980

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 CHEROKEE RWS- MILL CREEK SUBSYSTEM.

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 IA1800900 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Iowa Drinking Water Authority

Iowa's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find IA regulator via EPA SDWIS

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
2015 Coliform (TCR) MR 4 SDWIS / IA1800900 / 3100
1980 Nitrate MR 1 SDWIS / IA1800900 / 1040
1980 Chromium MR 1 SDWIS / IA1800900 / 1020
1980 Arsenic MR 1 SDWIS / IA1800900 / 1005
1980 Fluoride MR 1 SDWIS / IA1800900 / 1025
1980 Barium MR 1 SDWIS / IA1800900 / 1010
1980 Cadmium MR 1 SDWIS / IA1800900 / 1015
1980 Selenium MR 1 SDWIS / IA1800900 / 1045
1980 Mercury MR 1 SDWIS / IA1800900 / 1035

How CHEROKEE RWS- MILL CREEK SUBSYSTEM Compares

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

Metric CHEROKEE RWS- MILL CREEK SUBSYSTEM Iowa avg Federal benchmark
Total violations 12 77 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 15.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 83.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,451 1,735 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,795 regulated public water systems in Iowa.

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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is CHEROKEE RWS- MILL CREEK SUBSYSTEM water safe to drink?
CHEROKEE RWS- MILL CREEK SUBSYSTEM (PWS ID: IA1800900) has 12 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,451 people using Groundwater sources.
How many people does CHEROKEE RWS- MILL CREEK SUBSYSTEM serve?
CHEROKEE RWS- MILL CREEK SUBSYSTEM serves 1,451 people in CHEROKEE, Iowa. It is a Private-owned system using Groundwater water sources with 603 service connections.
What type of violations does CHEROKEE RWS- MILL CREEK SUBSYSTEM have?
CHEROKEE RWS- MILL CREEK SUBSYSTEM has 12 total violations: 0 health-based violations (MCL exceedances or treatment failures), 12 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CHEROKEE RWS- MILL CREEK SUBSYSTEM water?
No PFAS testing data is available for CHEROKEE RWS- MILL CREEK SUBSYSTEM under the EPA's UCMR5 monitoring program.
What water source does CHEROKEE RWS- MILL CREEK SUBSYSTEM use?
CHEROKEE RWS- MILL CREEK SUBSYSTEM 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.

Explore PlainWater

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial