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County water report

Harmon County Water Report

Drinking-water compliance, watershed health, monitoring records, and river conditions for Harmon County, Oklahoma.

Water grade

F

Water score

32.5

State rank

#11

of 77

Health violations

2

EPA SDWIS, 5-year lookback

Watershed impaired

Not reported

EPA ATTAINS coverage varies by state

Monitoring sites

N/A

EPA Water Quality Portal

Live streamflow

No gauge

Elm Fork of North Fork Red River nr Carl, OK

Water at a glance

Key Water Indicators for Harmon County

EPA SDWIS

Safety Grade

F

Score: 32.5 / 100

EPA SDWIS

Active Violations

2

5-year health-based lookback

EPA ATTAINS

Watershed Health

Not reported

Coverage varies by state

USGS NWIS

Streamflow Snapshot

No gauge

Elm Fork of North Fork Red River nr Carl, OK

EPA WQP

Monitoring Sites

N/A

Rolling 5-year window

Source: EPA SDWIS · Safe Drinking Water Information System

Drinking Water Compliance

Compliance grade

F

Based on EPA SDWIS compliance history.

Water score

Higher scores indicate cleaner recent compliance records.

32.5/100

Health violations

2

Health-based violations

Violations per 100K served

55.5

Population-normalized SDWIS rate

Editorial analysis

Understanding Harmon County’s Water

Drinking Water Quality Overview

EPA SDWIS

Harmon County's water systems carry a failing grade, scoring 32.5 out of 100. Over the past five years, EPA SDWIS records 2 health-based violations — a small cluster that warrants attention.

Editorial advisory

What the data suggests for Harmon County

Water Verdict

Harmon County receives a poor water quality assessment with a grade of F and a score of 32.5 out of 100. The water supply has documented quality issues. Residents are strongly encouraged to use filtered or bottled water for drinking and to stay informed about utility improvement plans.

Violation Context

Harmon County has recorded 2 health-based violations, indicating multiple instances where federal contaminant limits or treatment requirements were not met. At 55.5 violations per 100,000 people served, this rate is high and signals significant water quality management issues.

Consumer Guidance

Drinking-water compliance in Harmon County is rated Grade F, reflecting significant health-based violations in the recent reporting period. Harmon County's drinking-water compliance score is 32.5 out of 100. The violation rate for Harmon County is 55.5 per 100,000 people served. An NSF 53 or NSF 58-certified filter is recommended for drinking and cooking water. Check the Consumer Confidence Report from your utility to identify the specific contaminants and required corrective actions — utilities are legally required to notify customers of violations. A pipeline streamflow snapshot from the Elm Fork of North Fork Red River gauge is also available on this page.

Regional Context

Harmon County has better water quality than the average county in Oklahoma. Its water score is 16.7 points higher than the state average, indicating stronger water system performance relative to neighboring counties.

Advisory text summarizes county-level public records and is not a replacement for your utility's current Consumer Confidence Report or direct local notices.

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Safety Grade for Harmon County:FFailing

High violation count or severe watershed conditions.

Estimates use the national average residential water rate ($0.0068/gal, EPA/AWWA 2023) and EPA WaterSense per-person consumption baseline (75 gal/person/day). Actual bills vary by utility, usage tier, and local infrastructure fees. For informational purposes only.

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Frequently Asked Questions

What is the water quality in Harmon County, Oklahoma?
Harmon County, Oklahoma has a drinking-water quality grade of F with a score of 32.5/100, based on EPA SDWIS compliance data. The county has 2 health-based drinking water violations over the past 5 years. Watershed health, monitoring records, and streamflow snapshots are reported separately on this page.
Are there any water violations in Harmon County?
Harmon County has 2 health-based drinking water violations recorded by the EPA over the past 5 years. Health-based violations indicate instances where contaminant levels exceeded EPA Maximum Contaminant Levels (MCLs). Violations may have been resolved — check with your local water utility for current status.
How does Harmon County water compare to the Oklahoma average?
Harmon County's SDWIS water quality score of 32.5/100 is higher than the Oklahoma state average of 15.8. The average water quality grade across Oklahoma is F, based on data from 77 counties with available SDWIS data.
Is tap water safe to drink in Harmon County?
Based on EPA SDWIS data, Harmon County has a water quality grade of F (32.5/100). This indicates below-average compliance with significant violations. Residents may want to consider home water filtration or independent testing. The grade speaks to the public water system, not the watershed — for watershed-level concerns, see the Watershed Health zone. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).
Does Harmon County have clean drinking water?
Harmon County has 2 health-based drinking water violations according to EPA records. With a water quality score of 32.5/100 and grade F, the county's drinking water has had some compliance issues but continues to be monitored. Note: drinking-water compliance speaks to the public water system, not necessarily to the watershed itself — check the Watershed Health zone for ATTAINS §303(d) data.
How does Harmon County rank for water quality in Oklahoma?
Harmon County ranks #11 out of 77 counties in Oklahoma by SDWIS water quality score (1 = best). With a score of 32.5/100, it falls in the top third of counties statewide. The ranking reflects EPA SDWIS compliance only — not watershed impairment, monitoring density, or streamflow, which are tracked separately on this page.

Data Sources

Drinking-water compliance data from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.

Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor