States ›Oklahoma ›Pottawatomie County ›Asher

Asher, OK Tap Water Quality 2026

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

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

Main Utility: Asher Util Dev Auth PWSID: OK3006311 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 0.61 ppb, 4% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Asher earns a B for water quality

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

Lead: 0.61 ppb — 4% of the federal action level
PFAS never sampled at this system
116 violations since 2015, 81 health-based
No violations currently open
Asher's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 0.61 ppb — 4% of the federal action level
✓ Lower lead than 94% of Oklahoma utilities
Population Served
370
~170 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
116 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
4% of EPA action level
0.61 ppb
Action level: 15 ppb
The 90th-percentile lead result is 0.61 ppb, 4% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.173 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.179 MG/L 0.080 mg/L 2025 Archived
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2025 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2025 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2025 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.184 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.183 MG/L 0.080 mg/L 2025 Archived
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2025 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2025 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.194 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.23 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.25 MG/L 0.080 mg/L 2025 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.188 MG/L 0.060 mg/L 2025 Archived
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.168 MG/L 0.060 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.255 MG/L 0.080 mg/L 2024 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.149 MG/L 0.060 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.25 MG/L 0.080 mg/L 2024 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.126 MG/L 0.060 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.232 MG/L 0.080 mg/L 2024 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.126 MG/L 0.060 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.201 MG/L 0.080 mg/L 2024 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.126 MG/L 0.060 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.186 MG/L 0.080 mg/L 2023 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.135 MG/L 0.060 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.154 MG/L 0.080 mg/L 2023 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.146 MG/L 0.060 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.148 MG/L 0.080 mg/L 2023 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.153 MG/L 0.060 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.163 MG/L 0.080 mg/L 2023 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.158 MG/L 0.060 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.163 MG/L 0.080 mg/L 2022 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.161 MG/L 0.060 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.201 MG/L 0.080 mg/L 2022 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.13 MG/L 0.060 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.175 MG/L 0.080 mg/L 2022 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.092 MG/L 0.060 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.164 MG/L 0.080 mg/L 2022 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.096 MG/L 0.060 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.182 MG/L 0.080 mg/L 2021 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.085 MG/L 0.060 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.198 MG/L 0.080 mg/L 2021 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2021 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.091 MG/L 0.060 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.214 MG/L 0.080 mg/L 2021 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.116 MG/L 0.060 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.259 MG/L 0.080 mg/L 2021 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.142 MG/L 0.060 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.281 MG/L 0.080 mg/L 2020 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.155 MG/L 0.060 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.266 MG/L 0.080 mg/L 2020 Archived
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.286 MG/L 0.080 mg/L 2020 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.198 MG/L 0.060 mg/L 2020 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2020 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.22 MG/L 0.060 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.278 MG/L 0.080 mg/L 2020 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.215 MG/L 0.060 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.297 MG/L 0.080 mg/L 2019 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.249 MG/L 0.060 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.293 MG/L 0.080 mg/L 2019 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.195 MG/L 0.060 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.236 MG/L 0.080 mg/L 2019 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.157 MG/L 0.060 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.219 MG/L 0.080 mg/L 2019 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.116 MG/L 0.060 mg/L 2018 Archived
TTHM MCL EXCEEDANCE 0.168 MG/L 0.080 mg/L 2018 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.068 MG/L 0.060 mg/L 2018 Archived
TTHM MCL EXCEEDANCE 0.176 MG/L 0.080 mg/L 2018 Archived
TTHM MCL EXCEEDANCE 0.235 MG/L 0.080 mg/L 2018 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.095 MG/L 0.060 mg/L 2018 Archived
TTHM MCL EXCEEDANCE 0.217 MG/L 0.080 mg/L 2018 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.08 MG/L 0.060 mg/L 2018 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2017 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.234 MG/L 0.080 mg/L 2017 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.087 MG/L 0.060 mg/L 2017 Archived
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2017 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.09 MG/L 0.060 mg/L 2017 Archived
TTHM MCL EXCEEDANCE 0.255 MG/L 0.080 mg/L 2017 Archived
Consumer Confidence Rule OTHER — — 2017 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.074 MG/L 0.060 mg/L 2017 Archived
TTHM MCL EXCEEDANCE 0.273 MG/L 0.080 mg/L 2017 Archived
TTHM MCL EXCEEDANCE 0.321 MG/L 0.080 mg/L 2017 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.063 MG/L 0.060 mg/L 2017 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.293 MG/L 0.080 mg/L 2016 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
Consumer Confidence Rule OTHER — — 2016 Resolved
TTHM MCL EXCEEDANCE 0.247 MG/L 0.080 mg/L 2016 Archived
TTHM MCL EXCEEDANCE 0.203 MG/L 0.080 mg/L 2016 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.185 MG/L 0.080 mg/L 2016 Archived
TTHM MCL EXCEEDANCE 0.206 MG/L 0.080 mg/L 2015 Archived
TTHM MCL EXCEEDANCE 0.224 MG/L 0.080 mg/L 2015 Archived
TTHM MCL EXCEEDANCE 0.263 MG/L 0.080 mg/L 2015 Archived
TTHM MCL EXCEEDANCE 0.245 MG/L 0.080 mg/L 2015 Archived
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

116 violations are on record since 2015, of which 81 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Asher Util Dev Auth
PWSID OK3006311
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 370
Service connections 170
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Asher tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 0.61 ppb, 4% of the action level.
Does Asher 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 Asher? ▼
Asher Util Dev Auth (PWSID OK3006311). Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2025-08-21. No significant deficiencies were recorded.

What Should Asher 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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