Hugo, OK Tap Water Quality 2026

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

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

Main Utility: Hugo Municipal Authority PWSID: OK1010314 Updated: 2026 Q2

✅

No federal limits exceeded on record

Lead is 1.93 ppb, 13% of the action level and no violations are open. No PFAS was detected.

Hugo earns a B for water quality

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

Lead: 1.93 ppb — 13% of the federal action level

PFAS tested, none detected

117 violations since 2015, 92 health-based

No violations currently open

Hugo's lead level vs. all Oklahoma community water systems

0 ppb5 ppb10 ppb15 ppb

Lead level: 1.93 ppb — 13% of the federal action level

✓ Lower lead than 52% of Oklahoma utilities

Population Served

5094

~2507 connections

Water Source

Surface water

Drawn from surface water — SDWIS source code SW

Active Violations

117 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

13% of EPA action level

1.93 ppb

Action level: 15 ppb

The 90th-percentile lead result is 1.93 ppb, 13% 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)

Contaminant	Type	Measured	Limit	Period	Status
CARBON, TOTAL	TREATMENT TECHNIQUE	0.69 RATIO	TT	2025	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.062 MG/L	0.060 mg/L	2025	Archived
TTHM	MCL EXCEEDANCE	0.092 MG/L	0.080 mg/L	2025	Archived
TTHM	MCL EXCEEDANCE	0.085 MG/L	0.080 mg/L	2025	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.062 MG/L	0.060 mg/L	2025	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.063 MG/L	0.060 mg/L	2025	Archived
TTHM	MCL EXCEEDANCE	0.088 MG/L	0.080 mg/L	2025	Archived
CARBON, TOTAL	TREATMENT TECHNIQUE	0.67 RATIO	TT	2025	Archived
TTHM	MCL EXCEEDANCE	0.094 MG/L	0.080 mg/L	2025	Archived
TTHM	MCL EXCEEDANCE	0.105 MG/L	0.080 mg/L	2025	Archived
CARBON, TOTAL	TREATMENT TECHNIQUE	0.93 RATIO	TT	2025	Archived
CARBON, TOTAL	TREATMENT TECHNIQUE	0.92 RATIO	TT	2025	Archived
TTHM	MCL EXCEEDANCE	0.108 MG/L	0.080 mg/L	2025	Archived
TTHM	MCL EXCEEDANCE	0.099 MG/L	0.080 mg/L	2025	Archived
LEAD AND COPPER RULE REVISIONS	TREATMENT TECHNIQUE	—	—	2024	Resolved
LEAD AND COPPER RULE REVISIONS	REPORTING FAILURE	—	—	2024	Resolved
TTHM	MCL EXCEEDANCE	0.104 MG/L	0.080 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.097 MG/L	0.080 mg/L	2024	Archived
CARBON, TOTAL	TREATMENT TECHNIQUE	0.94 RATIO	TT	2024	Archived
Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2024	Resolved
Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2024	Resolved
TTHM	MCL EXCEEDANCE	0.103 MG/L	0.080 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.1 MG/L	0.080 mg/L	2024	Archived
CARBON, TOTAL	TREATMENT TECHNIQUE	0.97 RATIO	TT	2024	Archived
TTHM	MCL EXCEEDANCE	0.095 MG/L	0.080 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.095 MG/L	0.080 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.095 MG/L	0.080 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.097 MG/L	0.080 mg/L	2024	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.063 MG/L	0.060 mg/L	2023	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.062 MG/L	0.060 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.101 MG/L	0.080 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.102 MG/L	0.080 mg/L	2023	Archived
CARBON, TOTAL	TREATMENT TECHNIQUE	0.64 RATIO	TT	2023	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.068 MG/L	0.060 mg/L	2023	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.067 MG/L	0.060 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.107 MG/L	0.080 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.106 MG/L	0.080 mg/L	2023	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.066 MG/L	0.060 mg/L	2023	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.064 MG/L	0.060 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.098 MG/L	0.080 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.093 MG/L	0.080 mg/L	2023	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.063 MG/L	0.060 mg/L	2023	Archived
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.061 MG/L	0.060 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.099 MG/L	0.080 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.091 MG/L	0.080 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.086 MG/L	0.080 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.094 MG/L	0.080 mg/L	2022	Archived
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2022	Resolved
TTHM	MCL EXCEEDANCE	0.083 MG/L	0.080 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.084 MG/L	0.080 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.081 MG/L	0.080 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.082 MG/L	0.080 mg/L	2020	Resolved
TTHM	MCL EXCEEDANCE	0.084 MG/L	0.080 mg/L	2019	Resolved
TTHM	MCL EXCEEDANCE	0.084 MG/L	0.080 mg/L	2019	Resolved
TTHM	MCL EXCEEDANCE	0.09 MG/L	0.080 mg/L	2019	Resolved
TTHM	MCL EXCEEDANCE	0.081 MG/L	0.080 mg/L	2018	Resolved
TTHM	MCL EXCEEDANCE	0.083 MG/L	0.080 mg/L	2018	Resolved
TTHM	MCL EXCEEDANCE	0.083 MG/L	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	0.083 MG/L	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	0.106 MG/L	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	0.14 MG/L	0.080 mg/L	2017	Resolved
CARBON, TOTAL	TREATMENT TECHNIQUE	0.92 RATIO	TT	2017	Resolved
TTHM	MCL EXCEEDANCE	0.137 MG/L	0.080 mg/L	2016	Resolved
TTHM	MCL EXCEEDANCE	0.123 MG/L	0.080 mg/L	2016	Resolved
CARBON, TOTAL	TREATMENT TECHNIQUE	0.95 RATIO	TT	2016	Resolved
Consumer Confidence Rule	OTHER	—	—	2016	Resolved
Total Haloacetic Acids (HAA5)	MCL EXCEEDANCE	0.068 MG/L	0.060 mg/L	2016	Resolved
TTHM	MCL EXCEEDANCE	0.112 MG/L	0.080 mg/L	2016	Resolved
CARBON, TOTAL	TREATMENT TECHNIQUE	0.86 RATIO	TT	2016	Resolved
CARBON, TOTAL	MONITORING AND REPORTING	—	TT	2016	Resolved
TTHM	MCL EXCEEDANCE	0.104 MG/L	0.080 mg/L	2016	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Archived
Interim Enhanced Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
TTHM	MCL EXCEEDANCE	0.091 MG/L	0.080 mg/L	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Archived
Interim Enhanced Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Archived
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Archived
CARBON, TOTAL	MONITORING AND REPORTING	—	TT	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
TTHM	MCL EXCEEDANCE	0.084 MG/L	0.080 mg/L	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Chlorine dioxide	DISINFECTANT LEVEL	—	0.8 mg/L	2015	Resolved
Chlorite	MONITORING AND REPORTING	—	1.0 mg/L	2015	Resolved
Chlorine dioxide	MONITORING AND REPORTING	—	0.8 mg/L	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2015	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
Chlorine dioxide	DISINFECTANT LEVEL	—	0.8 mg/L	2015	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2015	Resolved
TTHM	MCL EXCEEDANCE	0.086 MG/L	0.080 mg/L	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	OTHER	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	OTHER	—	—	2015	Resolved
TTHM	MCL EXCEEDANCE	0.081 MG/L	0.080 mg/L	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	MONITORING AND REPORTING	—	—	2015	Resolved
Interim Enhanced Surface Water Treatment Rule	OTHER	—	—	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

117 violations are on record since 2015, of which 92 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Hugo Municipal Authority

PWSID OK1010314

Water source Surface water — Drawn from surface water — SDWIS source code SW

Population served 5,094

Service connections 2,507

Systems serving this area 3

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Hugo tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open. Lead is 1.93 ppb, 13% of the action level.

Does Hugo water have PFAS? ▼

It was tested for the six regulated PFAS compounds and none were detected.

Who supplies water to Hugo? ▼

Hugo Municipal Authority (PWSID OK1010314), one of 3 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW

When was this system last inspected? ▼

It was last inspected on 2025-07-24. No significant deficiencies were recorded.

What Should Hugo Residents Do?

Read your annual water report

Your supplier publishes a Consumer Confidence Report each July covering the prior year.

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.

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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