HYDRO PWA

Q: Is HYDRO PWA water safe to drink?

HYDRO PWA (PWS ID: OK2000812) has 200 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 1,060 people using Groundwater sources.

Q: How many people does HYDRO PWA serve?

HYDRO PWA serves 1,060 people in HYDRO, Oklahoma. It is a Local-owned system using Groundwater water sources with 455 service connections.

Q: What type of violations does HYDRO PWA have?

HYDRO PWA has 200 total violations: 34 health-based violations (MCL exceedances or treatment failures), 137 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Q: Has PFAS been detected in HYDRO PWA water?

Yes. UCMR5 testing detected 1 PFAS compound in HYDRO PWA's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.

Q: What water source does HYDRO PWA use?

HYDRO PWA uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Q: 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.

Reviewed byPlainWater Editorial, Drinking Water Quality Editorial Team · June 4, 2026

PWS ID: OK2000812 · HYDRO, Oklahoma 73048

HYDRO PWA serves 1,060 people in HYDRO, Oklahoma using Groundwater water sources. It has 200 recorded EPA violations, including 34 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: HYDRO PWA

HYDRO PWA is a local-owned community water system that delivers drinking water to 1,060 residents in HYDRO, Oklahoma (Caddo County) through 455 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 200 total violations for this system , of which 34 (17%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 137 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 Chlorine, recorded in 34 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 18.6 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. HYDRO PWA's 200 violations sit below 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.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served

1,060

Total Violations

200

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Local
Connections: 455
County: Caddo
School/Daycare: No
MCL Violations: 33
Monitoring Violations: 137
Treatment Tech Violations: 1

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Chlorine	MR	34	2025
E. COLI	MR	26	2024
Nitrate-Nitrite	MCL	22	2016
Revised Total Coliform Rule	MON	11	2024
Consumer Confidence Rule	Other	10	2024
Nitrate	MCL	8	2002
Nitrate-Nitrite	MR	8	2021
2,4-D	MR	8	2021
Lead and Copper Rule	MR	6	2016
Coliform (TCR)	MR	4	2010
Coliform (TCR)	MCL	3	2010
cis-1,2-Dichloroethylene	MR	2	2001
DICHLOROMETHANE	MR	2	2001
p-Dichlorobenzene	MR	2	2001
1,1-Dichloroethylene	MR	2	2001
trans-1,2-Dichloroethylene	MR	2	2001
1,1,1-Trichloroethane	MR	2	2001
Carbon tetrachloride	MR	2	2001
1,2-Dichloropropane	MR	2	2001
1,1,2-Trichloroethane	MR	2	2001
Benzene	MR	2	2001
Toluene	MR	2	2001
Styrene	MR	2	2001
o-Dichlorobenzene	MR	2	2001
Vinyl chloride	MR	2	2001
Trichloroethylene	MR	2	2001
Xylenes, Total	MR	2	2001
CHLOROBENZENE	MR	2	2001
1,2,4-Trichlorobenzene	MR	2	2001
Ethylbenzene	MR	2	2001

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant	Date	Result	MRL	Status
ADONA	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
HFPO-DA	4/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFBA	4/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
6:2 FTS	4/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
8:2 FTS	4/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
lithium	4/11/2023	18.1000 µg/L	9 µg/L	Detected
PFDA	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFMPA	4/11/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFPeA	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFEESA	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeS	4/11/2023	<0.004 µg/L	0.004 µg/L	Not Detected
4:2 FTS	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
9Cl-PF3ONS	4/11/2023	<0.002 µg/L	0.002 µg/L	Not Detected
11Cl-PF3OUdS	4/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFUnA	4/11/2023	<0.002 µg/L	0.002 µg/L	Not Detected
PFDoA	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	4/11/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFOS	4/11/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFNA	4/11/2023	<0.004 µg/L	0.004 µg/L	Not Detected
NFDHA	4/11/2023	<0.02 µg/L	0.02 µg/L	Not Detected
PFHxS	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHpS	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHpA	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFBS	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHxA	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFTrDA	4/11/2023	<0.007 µg/L	0.007 µg/L	Not Detected
NEtFOSAA	4/11/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFTA	4/11/2023	<0.008 µg/L	0.008 µg/L	Not Detected
PFMBA	4/11/2023	<0.003 µg/L	0.003 µg/L	Not Detected
NMeFOSAA	4/11/2023	<0.006 µg/L	0.006 µg/L	Not Detected
PFMBA	10/4/2023	<0.003 µg/L	0.003 µg/L	Not Detected
NFDHA	10/4/2023	<0.02 µg/L	0.02 µg/L	Not Detected
PFPeS	10/4/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpS	10/4/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFNA	10/4/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFEESA	10/4/2023	<0.003 µg/L	0.003 µg/L	Not Detected
ADONA	10/4/2023	<0.003 µg/L	0.003 µg/L	Not Detected
lithium	10/4/2023	18.6000 µg/L	9 µg/L	Detected
8:2 FTS	10/4/2023	<0.005 µg/L	0.005 µg/L	Not Detected
4:2 FTS	10/4/2023	<0.003 µg/L	0.003 µg/L	Not Detected
6:2 FTS	10/4/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFBA	10/4/2023	<0.005 µg/L	0.005 µg/L	Not Detected
HFPO-DA	10/4/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFTA	10/4/2023	<0.008 µg/L	0.008 µg/L	Not Detected
9Cl-PF3ONS	10/4/2023	<0.002 µg/L	0.002 µg/L	Not Detected
PFHxS	10/4/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeA	10/4/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHpA	10/4/2023	<0.003 µg/L	0.003 µg/L	Not Detected
NMeFOSAA	10/4/2023	<0.006 µg/L	0.006 µg/L	Not Detected
PFTrDA	10/4/2023	<0.007 µg/L	0.007 µg/L	Not Detected

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 HYDRO PWA.

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 OK2000812 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	Chlorine	MR	34	SDWIS / OK2000812 / 0999
2024	E. COLI	MR	26	SDWIS / OK2000812 / 3014
2024	Revised Total Coliform Rule	MON	11	SDWIS / OK2000812 / 8000
2024	Consumer Confidence Rule	Other	10	SDWIS / OK2000812 / 7000
2024	LEAD AND COPPER RULE REVISIONS	TT	1	SDWIS / OK2000812 / 5200
2024	LEAD AND COPPER RULE REVISIONS	RPT	1	SDWIS / OK2000812 / 5200
2021	Nitrate-Nitrite	MR	8	SDWIS / OK2000812 / 1038
2021	2,4-D	MR	8	SDWIS / OK2000812 / 2105
2016	Nitrate-Nitrite	MCL	22	SDWIS / OK2000812 / 1038
2016	Lead and Copper Rule	MR	6	SDWIS / OK2000812 / 5000
2010	Coliform (TCR)	MR	4	SDWIS / OK2000812 / 3100
2010	Coliform (TCR)	MCL	3	SDWIS / OK2000812 / 3100
2002	Nitrate	MCL	8	SDWIS / OK2000812 / 1040
2001	cis-1,2-Dichloroethylene	MR	2	SDWIS / OK2000812 / 2380
2001	DICHLOROMETHANE	MR	2	SDWIS / OK2000812 / 2964

How HYDRO PWA Compares

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

Metric	HYDRO PWA	Oklahoma avg	Federal benchmark
Total violations	200	266.8	SDWA compliance — any non-zero count is a recorded breach
Health-based violations	34	90.2	Indicates a contaminant exceeded a federal MCL
PFAS detection	1 compound	60.8%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	1,060	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 HYDRO PWA water safe to drink? ▼

HYDRO PWA (PWS ID: OK2000812) has 200 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 1,060 people using Groundwater sources.

How many people does HYDRO PWA serve? ▼

HYDRO PWA serves 1,060 people in HYDRO, Oklahoma. It is a Local-owned system using Groundwater water sources with 455 service connections.

What type of violations does HYDRO PWA have? ▼

HYDRO PWA has 200 total violations: 34 health-based violations (MCL exceedances or treatment failures), 137 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in HYDRO PWA water? ▼

Yes. UCMR5 testing detected 1 PFAS compound in HYDRO PWA's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.

What water source does HYDRO PWA use? ▼

HYDRO PWA 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.

Explore PlainWater

Water in Oklahoma

All systems in state

All States

Water quality by state

Contaminants

PFAS & other pollutants

Guides

Understanding water quality

Related Data for Oklahoma

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

Browse all → | Rankings →

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial