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Agra, OK Tap Water Quality 2026

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

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

Main Utility: Lincoln Co Rw & Sewer Dist 4 PWSID: OK2004105 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.10 ppb, 14% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Agra earns a B for water quality

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

Lead: 2.10 ppb — 14% of the federal action level
PFAS never sampled at this system
16 violations since 2015, 0 health-based
No violations currently open
Agra's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.10 ppb — 14% of the federal action level
✓ Lower lead than 47% of Oklahoma utilities
Population Served
311
~1052 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
16 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
14% of EPA action level
2.10 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.10 ppb, 14% 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
Consumer Confidence Rule OTHER — — 2025 Resolved
Consumer Confidence Rule OTHER — — 2023 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2023 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2023 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2023 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2023 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2023–2025 Archived
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2023–2025 Archived
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2023–2025 Archived
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2023–2025 Archived
Nitrite MONITORING AND REPORTING — 1 mg/L 2023–2025 Archived
E. COLI MONITORING AND REPORTING — 0 2021 Resolved
E. COLI MONITORING AND REPORTING — 0 2021 Resolved
Nitrite MONITORING AND REPORTING — 1 mg/L 2020–2022 Archived
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2017 Resolved
E. COLI MONITORING AND REPORTING — 0 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

16 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Lincoln Co Rw & Sewer Dist 4
PWSID OK2004105
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 311
Service connections 1,052
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Agra tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.10 ppb, 14% of the action level.
Does Agra 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 Agra? ▼
Lincoln Co Rw & Sewer Dist 4 (PWSID OK2004105). Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2026-01-16. Inspectors recorded 1 significant deficiency.

What Should Agra 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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