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Community Water System · PWS OK3001669

Hwy 7 East Water Assn

Lawton, Oklahoma 73502 - drinking water served from surface water sources to 50 people, tracked in EPA SDWIS and UCMR5.

50
People served
730
EPA violations
3
Health-based
Untested
UCMR5 result

The verdict

EPA records 730 drinking-water violations at Hwy 7 East Water Assn - above the Oklahoma per-system average.

730
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
50
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Hwy 7 East Water Assn

Hwy 7 East Water Assn is a private-owned community water system that delivers drinking water to 50 residents in Lawton, Oklahoma (Comanche County) through 25 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 730 total violations for this system , of which 3 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 666 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Revised Total Coliform Rule, recorded in 273 violations (MON). 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%).

Hwy 7 East Water Assn's 730 violations sit above 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
50
Total Violations
730
Health-Based Violations
3
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
25
County
Comanche
School/Daycare
No
MCL Violations
3
Monitoring Violations
666
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 273 2025
Chlorine MR 260 2025
Coliform (TCR) MR 60 2015
Lead and Copper Rule MR 40 2025
Consumer Confidence Rule Other 20 2017
TTHM MR 15 2024
Total Haloacetic Acids (HAA5) MR 15 2024
Public Notice Other 12 2017
Coliform (TCR) MCL 3 2010
Chloramine MR 3 2025
Revised Total Coliform Rule Other 2 2016

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 Hwy 7 East Water Assn.

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 OK3001669 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
2025 Revised Total Coliform Rule MON 273 SDWIS / OK3001669 / 8000
2025 Chlorine MR 260 SDWIS / OK3001669 / 0999
2025 Lead and Copper Rule MR 40 SDWIS / OK3001669 / 5000
2025 Chloramine MR 3 SDWIS / OK3001669 / 1006
2024 TTHM MR 15 SDWIS / OK3001669 / 2950
2024 Total Haloacetic Acids (HAA5) MR 15 SDWIS / OK3001669 / 2456
2017 Consumer Confidence Rule Other 20 SDWIS / OK3001669 / 7000
2017 Public Notice Other 12 SDWIS / OK3001669 / 7500
2016 Revised Total Coliform Rule Other 2 SDWIS / OK3001669 / 8000
2015 Coliform (TCR) MR 60 SDWIS / OK3001669 / 3100
2010 Coliform (TCR) MCL 3 SDWIS / OK3001669 / 3100

How Hwy 7 East Water Assn Compares

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

Metric Hwy 7 East Water Assn Oklahoma avg Federal benchmark
Total violations 730 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 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 50 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 Hwy 7 East Water Assn water safe to drink? ▼
Hwy 7 East Water Assn (PWS ID: OK3001669) has 730 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 50 people using Surface Water sources.
How many people does Hwy 7 East Water Assn serve? ▼
Hwy 7 East Water Assn serves 50 people in Lawton, Oklahoma. It is a Private-owned system using Surface Water water sources with 25 service connections.
What type of violations does Hwy 7 East Water Assn have? ▼
Hwy 7 East Water Assn has 730 total violations: 3 health-based violations (MCL exceedances or treatment failures), 666 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Hwy 7 East Water Assn water? ▼
No PFAS testing data is available for Hwy 7 East Water Assn under the EPA's UCMR5 monitoring program.
What water source does Hwy 7 East Water Assn use? ▼
Hwy 7 East Water Assn 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.
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.