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LOGAN CO RWD #2

PWS ID: OK2004206 · CRESCENT, Oklahoma 73028

LOGAN CO RWD #2 serves 1,146 people in CRESCENT, Oklahoma using Groundwater water sources. It has 714 recorded EPA violations, including 491 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LOGAN CO RWD #2

LOGAN CO RWD #2 is a local-owned community water system that delivers drinking water to 1,146 residents in CRESCENT, Oklahoma (Logan County) through 648 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 714 total violations for this system , of which 491 (69%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 220 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 Nitrate-Nitrite, recorded in 342 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. LOGAN CO RWD #2's 714 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
1,146
Total Violations
714
Health-Based Violations
491
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
648
County
Logan
School/Daycare
No
MCL Violations
491
Monitoring Violations
220
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate-Nitrite MCL 342 2013
Nitrate MCL 149 2002
Nitrate-Nitrite MR 46 2016
Coliform (TCR) MR 15 2013
Lead and Copper Rule MR 11 2011
Nitrate MR 8 2002
1,2,4-Trichlorobenzene MR 6 2011
cis-1,2-Dichloroethylene MR 6 2011
DICHLOROMETHANE MR 6 2011
1,1-Dichloroethylene MR 6 2011
1,2-Dichloroethane MR 6 2011
1,1,1-Trichloroethane MR 6 2011
1,2-Dichloropropane MR 6 2011
1,1,2-Trichloroethane MR 6 2011
Tetrachloroethylene MR 6 2011
CHLOROBENZENE MR 6 2011
E. COLI MR 6 2025
Vinyl chloride MR 6 2011
Carbon tetrachloride MR 6 2011
o-Dichlorobenzene MR 6 2011
p-Dichlorobenzene MR 6 2011
Styrene MR 6 2011
trans-1,2-Dichloroethylene MR 6 2011
Xylenes, Total MR 6 2011
Trichloroethylene MR 6 2011
Toluene MR 6 2011
Ethylbenzene MR 6 2011
Benzene MR 6 2011
Chlorine MR 4 2017
Revised Total Coliform Rule MON 4 2017

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 LOGAN CO RWD #2.

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 OK2004206 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 E. COLI MR 6 SDWIS / OK2004206 / 3014
2017 Chlorine MR 4 SDWIS / OK2004206 / 0999
2017 Revised Total Coliform Rule MON 4 SDWIS / OK2004206 / 8000
2016 Nitrate-Nitrite MR 46 SDWIS / OK2004206 / 1038
2013 Nitrate-Nitrite MCL 342 SDWIS / OK2004206 / 1038
2013 Coliform (TCR) MR 15 SDWIS / OK2004206 / 3100
2011 Lead and Copper Rule MR 11 SDWIS / OK2004206 / 5000
2011 1,2,4-Trichlorobenzene MR 6 SDWIS / OK2004206 / 2378
2011 cis-1,2-Dichloroethylene MR 6 SDWIS / OK2004206 / 2380
2011 DICHLOROMETHANE MR 6 SDWIS / OK2004206 / 2964
2011 1,1-Dichloroethylene MR 6 SDWIS / OK2004206 / 2977
2011 1,2-Dichloroethane MR 6 SDWIS / OK2004206 / 2980
2011 1,1,1-Trichloroethane MR 6 SDWIS / OK2004206 / 2981
2011 1,2-Dichloropropane MR 6 SDWIS / OK2004206 / 2983
2011 1,1,2-Trichloroethane MR 6 SDWIS / OK2004206 / 2985

How LOGAN CO RWD #2 Compares

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

Metric LOGAN CO RWD #2 Oklahoma avg Federal benchmark
Total violations 714 266.8 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 491 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 1,146 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 LOGAN CO RWD #2 water safe to drink? ▼
LOGAN CO RWD #2 (PWS ID: OK2004206) has 714 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,146 people using Groundwater sources.
How many people does LOGAN CO RWD #2 serve? ▼
LOGAN CO RWD #2 serves 1,146 people in CRESCENT, Oklahoma. It is a Local-owned system using Groundwater water sources with 648 service connections.
What type of violations does LOGAN CO RWD #2 have? ▼
LOGAN CO RWD #2 has 714 total violations: 491 health-based violations (MCL exceedances or treatment failures), 220 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LOGAN CO RWD #2 water? ▼
No PFAS testing data is available for LOGAN CO RWD #2 under the EPA's UCMR5 monitoring program.
What water source does LOGAN CO RWD #2 use? ▼
LOGAN CO RWD #2 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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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial