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MCCLAIN CO RWD # 8

PWS ID: OK2004711 · WAYNE, Oklahoma 73095

MCCLAIN CO RWD # 8 serves 1,897 people in WAYNE, Oklahoma using Groundwater water sources. It has 407 recorded EPA violations, including 31 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: MCCLAIN CO RWD # 8

MCCLAIN CO RWD # 8 is a local-owned community water system that delivers drinking water to 1,897 residents in WAYNE, Oklahoma (McClain County) through 815 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 407 total violations for this system , of which 31 (8%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 354 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 Bromate, recorded in 96 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 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. MCCLAIN CO RWD # 8's 407 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.

Population Served
1,897
Total Violations
407
Health-Based Violations
31
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
815
County
McClain
School/Daycare
No
MCL Violations
31
Monitoring Violations
354
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Bromate MR 96 2023
Coliform (TCR) MR 22 2011
Lead and Copper Rule MR 20 2024
Coliform (TCR) MCL 19 2010
Chlorine MR 16 2023
Bromate MCL 12 2006
Revised Total Coliform Rule MON 12 2023
E. COLI MR 5 2021
Consumer Confidence Rule Other 4 2015
Endrin MR 4 2019
BHC-GAMMA MR 4 2019
Toxaphene MR 4 2019
Diquat MR 4 2019
OXAMYL MR 4 2019
Di(2-ethylhexyl) phthalate MR 4 2019
Carbofuran MR 4 2019
Atrazine MR 4 2019
LASSO MR 4 2019
Heptachlor MR 4 2019
2,4,5-TP MR 4 2019
Benzo(a)pyrene MR 4 2019
Pentachlorophenol MR 4 2019
Total Polychlorinated Biphenyls (PCB) MR 4 2019
1,2-DIBROMO-3-CHLOROPROPANE MR 4 2019
ETHYLENE DIBROMIDE MR 4 2019
Total Haloacetic Acids (HAA5) MR 4 2020
Simazine MR 4 2019
Picloram MR 4 2019
TTHM MR 4 2020
Di(2-ethylhexyl) adipate MR 4 2019

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 MCCLAIN CO RWD # 8.

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 OK2004711 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 Lead and Copper Rule MR 20 SDWIS / OK2004711 / 5000
2023 Bromate MR 96 SDWIS / OK2004711 / 1011
2023 Chlorine MR 16 SDWIS / OK2004711 / 0999
2023 Revised Total Coliform Rule MON 12 SDWIS / OK2004711 / 8000
2021 E. COLI MR 5 SDWIS / OK2004711 / 3014
2020 Total Haloacetic Acids (HAA5) MR 4 SDWIS / OK2004711 / 2456
2020 TTHM MR 4 SDWIS / OK2004711 / 2950
2019 Endrin MR 4 SDWIS / OK2004711 / 2005
2019 BHC-GAMMA MR 4 SDWIS / OK2004711 / 2010
2019 Toxaphene MR 4 SDWIS / OK2004711 / 2020
2019 Diquat MR 4 SDWIS / OK2004711 / 2032
2019 OXAMYL MR 4 SDWIS / OK2004711 / 2036
2019 Di(2-ethylhexyl) phthalate MR 4 SDWIS / OK2004711 / 2039
2019 Carbofuran MR 4 SDWIS / OK2004711 / 2046
2019 Atrazine MR 4 SDWIS / OK2004711 / 2050

How MCCLAIN CO RWD # 8 Compares

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

Metric MCCLAIN CO RWD # 8 Oklahoma avg Federal benchmark
Total violations 407 266.8 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 31 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 1,897 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 MCCLAIN CO RWD # 8 water safe to drink? ▼
MCCLAIN CO RWD # 8 (PWS ID: OK2004711) has 407 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,897 people using Groundwater sources.
How many people does MCCLAIN CO RWD # 8 serve? ▼
MCCLAIN CO RWD # 8 serves 1,897 people in WAYNE, Oklahoma. It is a Local-owned system using Groundwater water sources with 815 service connections.
What type of violations does MCCLAIN CO RWD # 8 have? ▼
MCCLAIN CO RWD # 8 has 407 total violations: 31 health-based violations (MCL exceedances or treatment failures), 354 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MCCLAIN CO RWD # 8 water? ▼
No PFAS testing data is available for MCCLAIN CO RWD # 8 under the EPA's UCMR5 monitoring program.
What water source does MCCLAIN CO RWD # 8 use? ▼
MCCLAIN CO RWD # 8 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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