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NOWATA MUNICIPAL AUTHORITY

PWS ID: OK1021503 · NOWATA, Oklahoma 74048

NOWATA MUNICIPAL AUTHORITY serves 3,971 people in NOWATA, Oklahoma using Surface Water water sources. It has 358 recorded EPA violations, including 221 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (4 compounds found).

Water Quality Snapshot: NOWATA MUNICIPAL AUTHORITY

NOWATA MUNICIPAL AUTHORITY is a local-owned community water system that delivers drinking water to 3,971 residents in NOWATA, Oklahoma (Nowata County) through 2,072 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 358 total violations for this system , of which 221 (62%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 93 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is TTHM, recorded in 122 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 4 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 0.0094 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Oklahoma, EPA tracks 1,262 public water systems serving 3,699,452 people, with 336,706 cumulative violations and 113,804 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 266.8 violations. NOWATA MUNICIPAL AUTHORITY's 358 violations sit above the Oklahoma average. Statewide, 101 of 166 UCMR5-tested systems have reported PFAS detections (60.8%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
3,971
Total Violations
358
Health-Based Violations
221
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,072
County
Nowata
School/Daycare
No
MCL Violations
135
Monitoring Violations
93
Treatment Tech Violations
86

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 122 2024
Long Term 2 Enhanced Surface Water Treatment Rule TT 78 2017
Long Term 2 Enhanced Surface Water Treatment Rule MR 72 2017
Public Notice Other 20 2015
TTHM MR 10 2021
Coliform (TCR) MR 8 2011
Total Haloacetic Acids (HAA5) MCL 7 2006
Surface Water Treatment Rule TT 6 2002
Coliform (TCR) MCL 6 2015
Consumer Confidence Rule Other 4 2015
CARBON, TOTAL MR 3 2016
LEAD AND COPPER RULE REVISIONS TT 2 2024
LEAD AND COPPER RULE REVISIONS RPT 2 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 5 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 9/26/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 9/26/2023 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTrDA 9/26/2023 <0.007 µg/L 0.007 µg/L Not Detected
9Cl-PF3ONS 9/26/2023 <0.002 µg/L 0.002 µg/L Not Detected
NFDHA 9/26/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/26/2023 <9 µg/L 9 µg/L Not Detected
PFOS 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/26/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFEESA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/26/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 9/26/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 9/26/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/19/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/19/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/19/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/19/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 9/19/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/19/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 9/19/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/19/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/19/2023 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 9/19/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/19/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFPeA 9/19/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/19/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/19/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/19/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/19/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/19/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 9/19/2023 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 9/19/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/19/2023 <0.002 µg/L 0.002 µg/L Not Detected

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 NOWATA MUNICIPAL AUTHORITY.

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 OK1021503 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oklahoma Drinking Water Authority

Oklahoma'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 OK 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
2024 TTHM MCL 122 SDWIS / OK1021503 / 2950
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / OK1021503 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / OK1021503 / 5200
2021 TTHM MR 10 SDWIS / OK1021503 / 2950
2017 Long Term 2 Enhanced Surface Water Treatment Rule TT 78 SDWIS / OK1021503 / 0800
2017 Long Term 2 Enhanced Surface Water Treatment Rule MR 72 SDWIS / OK1021503 / 0800
2016 CARBON, TOTAL MR 3 SDWIS / OK1021503 / 2920
2015 Public Notice Other 20 SDWIS / OK1021503 / 7500
2015 Coliform (TCR) MCL 6 SDWIS / OK1021503 / 3100
2015 Consumer Confidence Rule Other 4 SDWIS / OK1021503 / 7000
2011 Coliform (TCR) MR 8 SDWIS / OK1021503 / 3100
2006 Total Haloacetic Acids (HAA5) MCL 7 SDWIS / OK1021503 / 2456
2002 Surface Water Treatment Rule TT 6 SDWIS / OK1021503 / 0200

How NOWATA MUNICIPAL AUTHORITY Compares

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

Metric NOWATA MUNICIPAL AUTHORITY Oklahoma avg Federal benchmark
Total violations 358 266.8 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 221 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection 4 compounds 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,971 2,931 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,262 regulated public water systems in Oklahoma.

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 NOWATA MUNICIPAL AUTHORITY water safe to drink? ▼
NOWATA MUNICIPAL AUTHORITY (PWS ID: OK1021503) has 358 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 4 PFAS compounds found. This system serves 3,971 people using Surface Water sources.
How many people does NOWATA MUNICIPAL AUTHORITY serve? ▼
NOWATA MUNICIPAL AUTHORITY serves 3,971 people in NOWATA, Oklahoma. It is a Local-owned system using Surface Water water sources with 2,072 service connections.
What type of violations does NOWATA MUNICIPAL AUTHORITY have? ▼
NOWATA MUNICIPAL AUTHORITY has 358 total violations: 221 health-based violations (MCL exceedances or treatment failures), 93 monitoring/reporting violations, and 86 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in NOWATA MUNICIPAL AUTHORITY water? ▼
Yes. UCMR5 testing detected 4 PFAS compounds in NOWATA MUNICIPAL AUTHORITY's water supply: PFOS, PFHxA, PFHxS, PFPeA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does NOWATA MUNICIPAL AUTHORITY use? ▼
NOWATA MUNICIPAL AUTHORITY uses Surface Water 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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