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Community Water System · PWS OK2007104

Davidson

Davidson, Oklahoma 73530-0308 - drinking water served from surface water sources to 375 people, tracked in EPA SDWIS and UCMR5.

375
People served
556
EPA violations
284
Health-based
Untested
UCMR5 result

The verdict

EPA records 556 drinking-water violations at Davidson, 51% of them health-based - above the Oklahoma per-system average.

556
Total EPA violations on record
51%
Health-based (MCL / treatment failure)
375
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Davidson

Davidson is a local-owned community water system that delivers drinking water to 375 residents in Davidson, Oklahoma (Tillman County) through 254 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 556 total violations for this system , of which 284 (51%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 251 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 TTHM, recorded in 212 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%).

Davidson's 556 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
375
Total Violations
556
Health-Based Violations
284
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
254
County
Tillman
School/Daycare
No
MCL Violations
282
Monitoring Violations
251
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 212 2023
TTHM MR 38 2020
Coliform (TCR) MR 36 2014
Total Haloacetic Acids (HAA5) MR 35 2020
Nitrate-Nitrite MCL 35 2022
Chlorine MR 25 2023
Revised Total Coliform Rule MON 23 2023
Coliform (TCR) MCL 21 2013
Nitrate-Nitrite MR 20 2022
E. COLI MR 18 2020
Nitrate MCL 14 1982
Lead and Copper Rule MR 11 2024
Consumer Confidence Rule Other 8 2016
Gross Alpha, Excl. Radon and U MR 7 2017
Gross Beta Particle Activity MR 7 2017
Combined Radium (-226 and -228) MR 7 2017
Nitrite MR 6 2014
CYANIDE MR 4 2017
Combined Uranium MR 4 2017
Picloram MR 4 2022
Arsenic MR 4 2017
Nitrate MR 2 2001
LEAD AND COPPER RULE REVISIONS RPT 2 2024
LEAD AND COPPER RULE REVISIONS TT 2 2024

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 Davidson.

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 OK2007104 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 11 SDWIS / OK2007104 / 5000
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / OK2007104 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / OK2007104 / 5200
2023 TTHM MCL 212 SDWIS / OK2007104 / 2950
2023 Chlorine MR 25 SDWIS / OK2007104 / 0999
2023 Revised Total Coliform Rule MON 23 SDWIS / OK2007104 / 8000
2022 Nitrate-Nitrite MCL 35 SDWIS / OK2007104 / 1038
2022 Nitrate-Nitrite MR 20 SDWIS / OK2007104 / 1038
2022 Picloram MR 4 SDWIS / OK2007104 / 2040
2020 TTHM MR 38 SDWIS / OK2007104 / 2950
2020 Total Haloacetic Acids (HAA5) MR 35 SDWIS / OK2007104 / 2456
2020 E. COLI MR 18 SDWIS / OK2007104 / 3014
2017 Gross Alpha, Excl. Radon and U MR 7 SDWIS / OK2007104 / 4000
2017 Gross Beta Particle Activity MR 7 SDWIS / OK2007104 / 4100
2017 Combined Radium (-226 and -228) MR 7 SDWIS / OK2007104 / 4010

How Davidson Compares

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

Metric Davidson Oklahoma avg Federal benchmark
Total violations 556 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 284 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 375 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 Davidson water safe to drink? ▼
Davidson (PWS ID: OK2007104) has 556 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 375 people using Surface Water sources.
How many people does Davidson serve? ▼
Davidson serves 375 people in Davidson, Oklahoma. It is a Local-owned system using Surface Water water sources with 254 service connections.
What type of violations does Davidson have? ▼
Davidson has 556 total violations: 284 health-based violations (MCL exceedances or treatment failures), 251 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Davidson water? ▼
No PFAS testing data is available for Davidson under the EPA's UCMR5 monitoring program.
What water source does Davidson use? ▼
Davidson 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.