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Community Water System · PWS OK2003604

Newkirk

Newkirk, Oklahoma 74647-0469 - drinking water served from groundwater sources to 2,243 people, tracked in EPA SDWIS and UCMR5.

2,243
People served
190
EPA violations
51
Health-based
Untested
UCMR5 result

The verdict

EPA records 190 drinking-water violations at Newkirk, 27% of them health-based - below the Oklahoma per-system average.

190
Total EPA violations on record
27%
Health-based (MCL / treatment failure)
2,243
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Newkirk

Newkirk is a local-owned community water system that delivers drinking water to 2,243 residents in Newkirk, Oklahoma (Kay County) through 1,150 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 190 total violations for this system , of which 51 (27%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 110 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is TTHM, recorded in 37 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 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. Statewide, 101 of 166 UCMR5-tested systems have reported PFAS detections (60.8%).

Newkirk's 190 violations sit below the Oklahoma 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
2,243
Total Violations
190
Health-Based Violations
51
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,150
County
Kay
School/Daycare
No
MCL Violations
49
Monitoring Violations
110
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 37 2010
Coliform (TCR) MR 29 2009
Lead and Copper Rule MR 24 2023
Chlorine MR 15 2023
E. COLI MR 14 2022
Coliform (TCR) MCL 12 2014
TTHM MR 9 2022
Total Haloacetic Acids (HAA5) MR 9 2022
Revised Total Coliform Rule MON 8 2022
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 2010
Lead and Copper Rule TT 2 2011

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 Newkirk.

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 OK2003604 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
2023 Lead and Copper Rule MR 24 SDWIS / OK2003604 / 5000
2023 Chlorine MR 15 SDWIS / OK2003604 / 0999
2022 E. COLI MR 14 SDWIS / OK2003604 / 3014
2022 TTHM MR 9 SDWIS / OK2003604 / 2950
2022 Total Haloacetic Acids (HAA5) MR 9 SDWIS / OK2003604 / 2456
2022 Revised Total Coliform Rule MON 8 SDWIS / OK2003604 / 8000
2014 Coliform (TCR) MCL 12 SDWIS / OK2003604 / 3100
2011 Lead and Copper Rule TT 2 SDWIS / OK2003604 / 5000
2010 TTHM MCL 37 SDWIS / OK2003604 / 2950
2010 Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 SDWIS / OK2003604 / 0600
2009 Coliform (TCR) MR 29 SDWIS / OK2003604 / 3100

How Newkirk Compares

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

Metric Newkirk Oklahoma avg Federal benchmark
Total violations 190 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 51 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,243 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 (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 Newkirk water safe to drink? ▼
Newkirk (PWS ID: OK2003604) has 190 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,243 people using Groundwater sources.
How many people does Newkirk serve? ▼
Newkirk serves 2,243 people in Newkirk, Oklahoma. It is a Local-owned system using Groundwater water sources with 1,150 service connections.
What type of violations does Newkirk have? ▼
Newkirk has 190 total violations: 51 health-based violations (MCL exceedances or treatment failures), 110 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Newkirk water? ▼
No PFAS testing data is available for Newkirk under the EPA's UCMR5 monitoring program.
What water source does Newkirk use? ▼
Newkirk 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.