States ›Oklahoma ›Choctaw County ›Boswell

Boswell, OK Tap Water Quality 2026

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

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

Main Utility: Boswell Public Works Authority PWSID: OK2001205 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.21 ppb, 8% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Boswell earns a B for water quality

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

Lead: 1.21 ppb — 8% of the federal action level
PFAS never sampled at this system
107 violations since 2015, 93 health-based
No violations currently open
Boswell's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.21 ppb — 8% of the federal action level
✓ Lower lead than 73% of Oklahoma utilities
Population Served
281
~252 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
107 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
8% of EPA action level
1.21 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.21 ppb, 8% 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
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2026 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2026 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.093 MG/L 0.060 mg/L 2026 Archived
TTHM MCL EXCEEDANCE 0.17 MG/L 0.080 mg/L 2026 Archived
TTHM MCL EXCEEDANCE 0.146 MG/L 0.080 mg/L 2026 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.102 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.148 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.154 MG/L 0.080 mg/L 2025 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.104 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.117 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.153 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 0.105 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.192 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.133 MG/L 0.080 mg/L 2025 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.088 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.17 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.22 MG/L 0.080 mg/L 2025 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.061 MG/L 0.060 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.224 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.179 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.199 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.223 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.179 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.195 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.148 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.162 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.168 MG/L 0.080 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.149 MG/L 0.080 mg/L 2023 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.072 MG/L 0.060 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.163 MG/L 0.080 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.136 MG/L 0.080 mg/L 2023 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.091 MG/L 0.060 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.144 MG/L 0.080 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.17 MG/L 0.080 mg/L 2023 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.078 MG/L 0.060 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.151 MG/L 0.080 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.173 MG/L 0.080 mg/L 2023 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.078 MG/L 0.060 mg/L 2022 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.061 MG/L 0.060 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.154 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.165 MG/L 0.080 mg/L 2022 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.068 MG/L 0.060 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.156 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.158 MG/L 0.080 mg/L 2022 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.163 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.16 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.153 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.167 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.146 MG/L 0.080 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.152 MG/L 0.080 mg/L 2021 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2021 Resolved
TTHM MCL EXCEEDANCE 0.153 MG/L 0.080 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.16 MG/L 0.080 mg/L 2021 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.062 MG/L 0.060 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.146 MG/L 0.080 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.156 MG/L 0.080 mg/L 2021 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.066 MG/L 0.060 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.145 MG/L 0.080 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.149 MG/L 0.080 mg/L 2021 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.067 MG/L 0.060 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.175 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.157 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.185 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.162 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.16 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.186 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.171 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.154 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.143 MG/L 0.080 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.126 MG/L 0.080 mg/L 2019 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.063 MG/L 0.060 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.134 MG/L 0.080 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.118 MG/L 0.080 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.136 MG/L 0.080 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.107 MG/L 0.080 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.143 MG/L 0.080 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.136 MG/L 0.080 mg/L 2019 Archived
TTHM MCL EXCEEDANCE 0.144 MG/L 0.080 mg/L 2018 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.062 MG/L 0.060 mg/L 2018 Archived
TTHM MCL EXCEEDANCE 0.147 MG/L 0.080 mg/L 2018 Archived
TTHM MCL EXCEEDANCE 0.135 MG/L 0.080 mg/L 2018 Archived
TTHM MCL EXCEEDANCE 0.136 MG/L 0.080 mg/L 2018 Archived
TTHM MCL EXCEEDANCE 0.183 MG/L 0.080 mg/L 2017 Archived
TTHM MCL EXCEEDANCE 0.196 MG/L 0.080 mg/L 2017 Archived
TTHM MCL EXCEEDANCE 0.251 MG/L 0.080 mg/L 2017 Archived
TTHM MCL EXCEEDANCE 0.342 MG/L 0.080 mg/L 2017 Archived
TTHM MCL EXCEEDANCE 0.365 MG/L 0.080 mg/L 2016 Archived
TTHM MCL EXCEEDANCE 0.311 MG/L 0.080 mg/L 2016 Archived
Consumer Confidence Rule OTHER — — 2016 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.271 MG/L 0.080 mg/L 2016 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.213 MG/L 0.080 mg/L 2016 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.091 MG/L 0.060 mg/L 2015 Archived
TTHM MCL EXCEEDANCE 0.188 MG/L 0.080 mg/L 2015 Archived
Consumer Confidence Rule OTHER — — 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.101 MG/L 0.060 mg/L 2015 Archived
TTHM MCL EXCEEDANCE 0.143 MG/L 0.080 mg/L 2015 Archived
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2015 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.123 MG/L 0.060 mg/L 2015 Archived
TTHM MCL EXCEEDANCE 0.114 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

107 violations are on record since 2015, of which 93 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Boswell Public Works Authority
PWSID OK2001205
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 281
Service connections 252
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Boswell tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.21 ppb, 8% of the action level.
Does Boswell 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 Boswell? ▼
Boswell Public Works Authority (PWSID OK2001205), one of 2 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 2025-07-30. No significant deficiencies were recorded.

What Should Boswell 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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