Elgin, OK Tap Water Quality 2026

Water quality report for Elgin, OK — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Elgin's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Elgin Pwa PWSID: OK2001610 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS has never been sampled at this system.

B

Elgin earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: not detected
PFAS never sampled at this system
89 violations since 2015, 1 health-based
No violations currently open
Elgin's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Oklahoma utilities
Population Served
1979
~1246 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
89 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2026 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2026 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2026 Unaddressed
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2025 Archived
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2025 Archived
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2025 Archived
Gross Beta Particle Activity MONITORING AND REPORTING — 4 mrem/yr 2025 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Unaddressed
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2024 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2024 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2024 Archived
Endrin MONITORING AND REPORTING — 0.002 mg/L 2024 Archived
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2024 Archived
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2024 Archived
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2024 Archived
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2024 Archived
Diquat MONITORING AND REPORTING — 0.02 mg/L 2024 Archived
Endothall MONITORING AND REPORTING — 0.1 mg/L 2024 Archived
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2024 Archived
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2024 Archived
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2024 Archived
Simazine MONITORING AND REPORTING — 0.004 mg/L 2024 Archived
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2024 Archived
Picloram MONITORING AND REPORTING — 0.5 mg/L 2024 Archived
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2024 Archived
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2024 Archived
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2024 Archived
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2024 Archived
LASSO MONITORING AND REPORTING — — 2024 Archived
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2024 Archived
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2024 Archived
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2024 Archived
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2024 Archived
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2024 Archived
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2024 Archived
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2024 Archived
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2024 Archived
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2024 Archived
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2024 Archived
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2024 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2023 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2023 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2023 Archived
Diquat MONITORING AND REPORTING — 0.02 mg/L 2023 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2023–2025 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2023–2025 Archived
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2023–2025 Archived
Chromium MONITORING AND REPORTING — 0.1 mg/L 2023–2025 Archived
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2023–2025 Archived
Mercury MONITORING AND REPORTING — 0.002 mg/L 2023–2025 Archived
Nickel MONITORING AND REPORTING — — 2023–2025 Archived
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2023–2025 Archived
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2023–2025 Archived
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2023–2025 Archived
Selenium MONITORING AND REPORTING — 0.05 mg/L 2023–2025 Archived
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2022 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2022 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2022 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2022 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2022 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2022 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2022 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2022 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2022 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2022 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2022 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2022 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2022 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2022 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2022 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2022 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2022 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2022 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2021 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2021 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020–2021 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2020–2021 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2020–2025 Archived
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2020–2025 Archived
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2020–2025 Archived
Gross Beta Particle Activity MONITORING AND REPORTING — 4 mrem/yr 2020–2025 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2018–2019 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2018–2019 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

89 violations are on record since 2015, of which 1 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Elgin Pwa
PWSID OK2001610
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 1,979
Service connections 1,246
Systems serving this area 3
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Elgin tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Elgin water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Elgin? ▼
Elgin Pwa (PWSID OK2001610), one of 3 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-08-21. Inspectors recorded 1 significant deficiency.

What Should Elgin Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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