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Community Water System · PWS OK2002806

Thirsty Water Corp

Hollis, Oklahoma 73550 - drinking water served from groundwater sources to 81 people, tracked in EPA SDWIS and UCMR5.

81
People served
376
EPA violations
211
Health-based
Untested
UCMR5 result

The verdict

EPA records 376 drinking-water violations at Thirsty Water Corp, 56% of them health-based - above the Oklahoma per-system average.

376
Total EPA violations on record
56%
Health-based (MCL / treatment failure)
81
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Thirsty Water Corp

Thirsty Water Corp is a local-owned community water system that delivers drinking water to 81 residents in Hollis, Oklahoma (Greer County) through 176 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 376 total violations for this system , of which 211 (56%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 148 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 211 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%).

Thirsty Water Corp's 376 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
81
Total Violations
376
Health-Based Violations
211
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
176
County
Greer
School/Daycare
No
MCL Violations
211
Monitoring Violations
148
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate-Nitrite MCL 211 2025
Nitrate-Nitrite MR 40 2024
Coliform (TCR) MR 22 2011
Glyphosate MR 16 2024
2,4-D MR 16 2024
Revised Total Coliform Rule MON 12 2022
Chlorine MR 12 2022
Lead and Copper Rule MR 8 2016
Consumer Confidence Rule Other 7 2013
Gross Beta Particle Activity MR 6 2016
Gross Alpha, Excl. Radon and U MR 6 2016
Combined Radium (-226 and -228) MR 6 2016
Combined Uranium MR 4 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 Thirsty Water Corp.

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 OK2002806 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 Nitrate-Nitrite MCL 211 SDWIS / OK2002806 / 1038
2024 Nitrate-Nitrite MR 40 SDWIS / OK2002806 / 1038
2024 Glyphosate MR 16 SDWIS / OK2002806 / 2034
2024 2,4-D MR 16 SDWIS / OK2002806 / 2105
2022 Revised Total Coliform Rule MON 12 SDWIS / OK2002806 / 8000
2022 Chlorine MR 12 SDWIS / OK2002806 / 0999
2016 Lead and Copper Rule MR 8 SDWIS / OK2002806 / 5000
2016 Gross Beta Particle Activity MR 6 SDWIS / OK2002806 / 4100
2016 Gross Alpha, Excl. Radon and U MR 6 SDWIS / OK2002806 / 4000
2016 Combined Radium (-226 and -228) MR 6 SDWIS / OK2002806 / 4010
2016 Combined Uranium MR 4 SDWIS / OK2002806 / 4006
2013 Consumer Confidence Rule Other 7 SDWIS / OK2002806 / 7000
2011 Coliform (TCR) MR 22 SDWIS / OK2002806 / 3100

How Thirsty Water Corp Compares

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

Metric Thirsty Water Corp Oklahoma avg Federal benchmark
Total violations 376 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 211 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 81 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 Thirsty Water Corp water safe to drink? ▼
Thirsty Water Corp (PWS ID: OK2002806) has 376 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 81 people using Groundwater sources.
How many people does Thirsty Water Corp serve? ▼
Thirsty Water Corp serves 81 people in Hollis, Oklahoma. It is a Local-owned system using Groundwater water sources with 176 service connections.
What type of violations does Thirsty Water Corp have? ▼
Thirsty Water Corp has 376 total violations: 211 health-based violations (MCL exceedances or treatment failures), 148 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Thirsty Water Corp water? ▼
No PFAS testing data is available for Thirsty Water Corp under the EPA's UCMR5 monitoring program.
What water source does Thirsty Water Corp use? ▼
Thirsty Water Corp 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.