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ADAIR MUNICIPAL WATER SUPPLY

PWS ID: IA0105002 · ADAIR, Iowa 50002

ADAIR MUNICIPAL WATER SUPPLY serves 809 people in ADAIR, Iowa using Groundwater water sources. It has 148 recorded EPA violations, including 35 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ADAIR MUNICIPAL WATER SUPPLY

ADAIR MUNICIPAL WATER SUPPLY is a local-owned community water system that delivers drinking water to 809 residents in ADAIR, Iowa (Adair County) through 466 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 148 total violations for this system , of which 35 (24%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 79 monitoring and reporting violations are on file. The most recent violation on record dates to 2009.

The most frequently cited contaminant at this system is Gross Alpha, Excl. Radon and U, recorded in 16 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 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. ADAIR MUNICIPAL WATER SUPPLY's 148 violations sit above 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
809
Total Violations
148
Health-Based Violations
35
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
466
County
Adair
School/Daycare
No
MCL Violations
35
Monitoring Violations
79
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Gross Alpha, Excl. Radon and U MCL 16 1985
Gross Alpha, Excl. Radon and U MR 15 1991
Combined Radium (-226 and -228) MCL 14 1985
Coliform (TCR) MR 12 2009
Radium-226 MR 10 1991
Radium-228 MR 9 1991
Combined Radium (-226 and -228) MR 8 1991
Fluoride MCL 5 1984
Lead and Copper Rule MR 5 2004
Total Haloacetic Acids (HAA5) MR 5 2005
Cadmium MR 3 1985
Arsenic MR 2 1985
Mercury MR 2 1985
Chromium MR 2 1985
Fluoride MR 2 1987
Barium MR 2 1985
Selenium MR 2 1985

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 ADAIR MUNICIPAL WATER SUPPLY.

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 IA0105002 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
2009 Coliform (TCR) MR 12 SDWIS / IA0105002 / 3100
2005 Total Haloacetic Acids (HAA5) MR 5 SDWIS / IA0105002 / 2456
2004 Lead and Copper Rule MR 5 SDWIS / IA0105002 / 5000
1991 Gross Alpha, Excl. Radon and U MR 15 SDWIS / IA0105002 / 4000
1991 Radium-226 MR 10 SDWIS / IA0105002 / 4020
1991 Radium-228 MR 9 SDWIS / IA0105002 / 4030
1991 Combined Radium (-226 and -228) MR 8 SDWIS / IA0105002 / 4010
1987 Fluoride MR 2 SDWIS / IA0105002 / 1025
1985 Gross Alpha, Excl. Radon and U MCL 16 SDWIS / IA0105002 / 4000
1985 Combined Radium (-226 and -228) MCL 14 SDWIS / IA0105002 / 4010
1985 Cadmium MR 3 SDWIS / IA0105002 / 1015
1985 Arsenic MR 2 SDWIS / IA0105002 / 1005
1985 Mercury MR 2 SDWIS / IA0105002 / 1035
1985 Chromium MR 2 SDWIS / IA0105002 / 1020
1985 Barium MR 2 SDWIS / IA0105002 / 1010

How ADAIR MUNICIPAL WATER SUPPLY Compares

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

Metric ADAIR MUNICIPAL WATER SUPPLY Iowa avg Federal benchmark
Total violations 148 77 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 35 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 809 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 ADAIR MUNICIPAL WATER SUPPLY water safe to drink? ▼
ADAIR MUNICIPAL WATER SUPPLY (PWS ID: IA0105002) has 148 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 809 people using Groundwater sources.
How many people does ADAIR MUNICIPAL WATER SUPPLY serve? ▼
ADAIR MUNICIPAL WATER SUPPLY serves 809 people in ADAIR, Iowa. It is a Local-owned system using Groundwater water sources with 466 service connections.
What type of violations does ADAIR MUNICIPAL WATER SUPPLY have? ▼
ADAIR MUNICIPAL WATER SUPPLY has 148 total violations: 35 health-based violations (MCL exceedances or treatment failures), 79 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ADAIR MUNICIPAL WATER SUPPLY water? ▼
No PFAS testing data is available for ADAIR MUNICIPAL WATER SUPPLY under the EPA's UCMR5 monitoring program.
What water source does ADAIR MUNICIPAL WATER SUPPLY use? ▼
ADAIR MUNICIPAL WATER SUPPLY 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.

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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.

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