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Piedmont, OK Tap Water Quality 2026

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

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

Main Utility: Piedmont Municipal Authority PWSID: OK2000909 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. No PFAS was detected.

C

Piedmont earns a C for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: not detected
PFAS tested, none detected
53 violations since 2015, 12 health-based
No violations currently open
Piedmont'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
6896
~2951 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
53 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
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
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 REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 18 PCI/L 15 pCi/L 2024 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2024 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2024 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2024 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2024 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2024 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 16 PCI/L 15 pCi/L 2023 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 21 PCI/L 15 pCi/L 2023 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023–2024 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2023–2024 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2022 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2022 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2022 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
E. COLI MONITORING AND REPORTING — 0 2020 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2020–2022 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2019 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2019 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2019 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2019 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2019 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2019 Resolved
Combined Uranium MCL EXCEEDANCE 96 UG/L 30 ug/L 2016 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 28 PCI/L 15 pCi/L 2016 Resolved
Combined Uranium MCL EXCEEDANCE 96 UG/L 30 ug/L 2016 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 28 PCI/L 15 pCi/L 2016 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2015 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2015 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2015 Resolved
Gross Beta Particle Activity MONITORING AND REPORTING — 4 mrem/yr 2015 Resolved
Combined Uranium MCL EXCEEDANCE 96 UG/L 30 ug/L 2015 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 57 PCI/L 15 pCi/L 2015 Resolved
Combined Uranium MCL EXCEEDANCE 96 UG/L 30 ug/L 2015 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 57 PCI/L 15 pCi/L 2015 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

53 violations are on record since 2015, of which 12 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Piedmont Municipal Authority
PWSID OK2000909
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 6,896
Service connections 2,951
Systems serving this area 3
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Piedmont tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Piedmont water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Piedmont? ▼
Piedmont Municipal Authority (PWSID OK2000909), one of 3 systems serving this area. Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2026-01-27. Inspectors recorded 2 significant deficiencies.

What Should Piedmont 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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