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Community Water System · PWS OK2002402

Kremlin-Hillsdale Rural Water District 1

Kremlin, Oklahoma 73753-0024 - drinking water served from groundwater sources to 320 people, tracked in EPA SDWIS and UCMR5.

320
People served
166
EPA violations
75
Health-based
Untested
UCMR5 result

The verdict

EPA records 166 drinking-water violations at Kremlin-Hillsdale Rural Water District 1, 45% of them health-based - below the Oklahoma per-system average.

166
Total EPA violations on record
45%
Health-based (MCL / treatment failure)
320
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Kremlin-Hillsdale Rural Water District 1

Kremlin-Hillsdale Rural Water District 1 is a local-owned community water system that delivers drinking water to 320 residents in Kremlin, Oklahoma (Garfield County) through 128 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 166 total violations for this system , of which 75 (45%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 66 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 Nitrate-Nitrite, recorded in 50 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%).

Kremlin-Hillsdale Rural Water District 1's 166 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
320
Total Violations
166
Health-Based Violations
75
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
128
County
Garfield
School/Daycare
No
MCL Violations
75
Monitoring Violations
66
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate-Nitrite MCL 50 2024
Lead and Copper Rule MR 21 2024
Nitrate MCL 17 2001
Nitrate-Nitrite MR 17 2023
Chlorine MR 8 2023
Coliform (TCR) MCL 8 1992
Coliform (TCR) MR 6 2008
Consumer Confidence Rule Other 4 2017
Revised Total Coliform Rule MON 4 2023
TTHM MR 4 2020
Total Haloacetic Acids (HAA5) MR 4 2020
E. COLI MR 2 2012

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 Kremlin-Hillsdale Rural Water District 1.

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 OK2002402 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 Nitrate-Nitrite MCL 50 SDWIS / OK2002402 / 1038
2024 Lead and Copper Rule MR 21 SDWIS / OK2002402 / 5000
2023 Nitrate-Nitrite MR 17 SDWIS / OK2002402 / 1038
2023 Chlorine MR 8 SDWIS / OK2002402 / 0999
2023 Revised Total Coliform Rule MON 4 SDWIS / OK2002402 / 8000
2020 TTHM MR 4 SDWIS / OK2002402 / 2950
2020 Total Haloacetic Acids (HAA5) MR 4 SDWIS / OK2002402 / 2456
2017 Consumer Confidence Rule Other 4 SDWIS / OK2002402 / 7000
2012 E. COLI MR 2 SDWIS / OK2002402 / 3014
2008 Coliform (TCR) MR 6 SDWIS / OK2002402 / 3100
2001 Nitrate MCL 17 SDWIS / OK2002402 / 1040
1992 Coliform (TCR) MCL 8 SDWIS / OK2002402 / 3100

How Kremlin-Hillsdale Rural Water District 1 Compares

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

Metric Kremlin-Hillsdale Rural Water District 1 Oklahoma avg Federal benchmark
Total violations 166 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 75 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 320 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 Kremlin-Hillsdale Rural Water District 1 water safe to drink? ▼
Kremlin-Hillsdale Rural Water District 1 (PWS ID: OK2002402) has 166 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 320 people using Groundwater sources.
How many people does Kremlin-Hillsdale Rural Water District 1 serve? ▼
Kremlin-Hillsdale Rural Water District 1 serves 320 people in Kremlin, Oklahoma. It is a Local-owned system using Groundwater water sources with 128 service connections.
What type of violations does Kremlin-Hillsdale Rural Water District 1 have? ▼
Kremlin-Hillsdale Rural Water District 1 has 166 total violations: 75 health-based violations (MCL exceedances or treatment failures), 66 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Kremlin-Hillsdale Rural Water District 1 water? ▼
No PFAS testing data is available for Kremlin-Hillsdale Rural Water District 1 under the EPA's UCMR5 monitoring program.
What water source does Kremlin-Hillsdale Rural Water District 1 use? ▼
Kremlin-Hillsdale Rural Water District 1 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.