waterbycounty
EPA SDWIS

McPherson County Water Quality

McPherson County, Kansas

Water Grade

A

Water Score

86.0

Violations

0

State Rank

#17

of 105 (1 = best)

EPA SDWIS Compliance

Drinking Water Quality

Water Quality Grade

A

Based on EPA compliance history and violation data

Water Score

86/100

Higher = better quality

Health Violations

0

Health-based violations

Violation Rate

0.0%

Systems with violations

Water Advisory: McPherson County

Water Verdict

McPherson County receives an excellent water quality assessment with a grade of A and a score of 86.0 out of 100. The water supply meets or exceeds federal safety standards, and residents can generally drink tap water with confidence.

Violation Context

McPherson County has recorded zero health-based violations, indicating that the water system has met all federal safety standards during the reporting period. The violation rate is zero per 1,000 residents, which is the best possible outcome.

Consumer Guidance

Tap water in McPherson County is generally safe to drink based on available data. Residents should still review their utility's annual Consumer Confidence Report for transparency on detected contaminants. For long-term peace of mind, request your utility's latest Consumer Confidence Report and consider independent water testing if you have specific health concerns.

Regional Context

McPherson County has better water quality than the average county in Kansas. Its water score is 43.4 points higher than the state average, indicating stronger water system performance relative to neighboring counties.

Live USGS Streamgage

River & Stream Conditions

Current Discharge

23.7cfs

May 14, 6:30 PM UTC

vs Long-Term Average

7%

Well below typical

Primary Streamgage

SMOKY HILL R AT LINDSBORG, KS

USGS site
06866000
Drainage area
8,110 sq mi
Long-term mean
341 cfs

One representative streamgage (the one with the largest drainage area in the county). Many counties have multiple gauges — this view summarizes the primary one. The long-term mean is the full-record annual average; "% of typical" compares the latest reading against that average.

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Frequently Asked Questions

What is the water quality in McPherson County, Kansas?
McPherson County, Kansas has a drinking-water quality grade of A with a score of 86.0/100, based on EPA SDWIS compliance data. The county has 0 health-based drinking water violations over the past 5 years. Watershed health, monitoring records, and live streamflow are reported separately on this page.
Are there any water violations in McPherson County?
McPherson County has 0 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). Zero violations is an excellent record indicating consistent compliance with federal drinking water standards.
What's happening with rivers in McPherson County right now?
McPherson County's primary USGS streamgage on the SMOKY HILL R is currently reading 23.7 cubic feet per second — 7% of the long-term mean of 341.32 cfs. This is well below typical — often a signal of drought stress on source water. For genuine real-time data, visit waterdata.usgs.gov.
How does McPherson County water compare to the Kansas average?
McPherson County's SDWIS water quality score of 86.0/100 is higher than the Kansas state average of 42.6. The average water quality grade across Kansas is D, based on data from 105 counties with available SDWIS data.
Is tap water safe to drink in McPherson County?
Based on EPA SDWIS data, McPherson County has a water quality grade of A (86.0/100). This indicates good to excellent water quality with strong SDWIS compliance. 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 McPherson County have clean drinking water?
McPherson County has 0 health-based drinking water violations according to EPA records. With a water quality score of 86.0/100 and grade A, the county's drinking water meets EPA standards with no recorded health violations. 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 McPherson County rank for water quality in Kansas?
McPherson County ranks #17 out of 105 counties in Kansas by SDWIS water quality score (1 = best). With a score of 86.0/100, 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.

Counties with Similar Water Quality

Anderson County

Kansas

A

86.0

Water score

Atchison County

Kansas

A

86.0

Water score

Cheyenne County

Kansas

A

86.0

Water score

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.

Live streamflow from the USGS National Water Information System (NWIS) — continuous discharge measurements from the largest-drainage gauge in each county, compared against the full-record long-term annual mean.

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 Logan Johnson, Founder & Data EditorUpdated Reviewed by Logan Johnson, Founder & Data Editor

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