waterbycounty
EPA SDWIS

Logan County Water Quality

Logan County, Kansas

Water Grade

F

Water Score

3.6

Violations

24

State Rank

#95

of 105 (1 = best)

EPA SDWIS Compliance

Drinking Water Quality

Water Quality Grade

F

Based on EPA compliance history and violation data

Water Score

3.6/100

Higher = better quality

Health Violations

24

Health-based violations

Violation Rate

1086.0%

Systems with violations

Water Advisory: Logan County

Water Verdict

Logan County receives a poor water quality assessment with a grade of F and a score of 3.6 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

Logan County has recorded 24 health-based violations, indicating multiple instances where federal contaminant limits or treatment requirements were not met. At 1086.0 violations per 1,000 residents, this rate is high and signals significant water quality management issues.

Consumer Guidance

Residents of Logan County are advised to use filtered or bottled water for drinking and cooking until water quality improves. A reverse-osmosis or activated-carbon filter certified to remove the contaminants listed in the utility's Consumer Confidence Report is recommended. With 24 recorded health violations, staying informed about utility communications and boil-water notices is especially important. 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

Logan County has poorer water quality than the average county in Kansas. Its water score is 39 points lower than the state average, suggesting more challenges with contamination control or infrastructure than neighboring counties.

Live USGS Streamgage

River & Stream Conditions

Current Discharge

0.00cfs

May 14, 6:30 PM UTC

vs Long-Term Average

0%

Well below typical

Primary Streamgage

SMOKY HILL R AT ELKADER, KS

USGS site
06860000
Drainage area
3,555 sq mi
Long-term mean
17.9 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 Logan County, Kansas?
Logan County, Kansas has a drinking-water quality grade of F with a score of 3.6/100, based on EPA SDWIS compliance data. The county has 24 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 Logan County?
Logan County has 24 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.
What's happening with rivers in Logan County right now?
Logan County's primary USGS streamgage on the SMOKY HILL R is currently reading 0 cubic feet per second — 0% of the long-term mean of 17.87 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 Logan County water compare to the Kansas average?
Logan County's SDWIS water quality score of 3.6/100 is lower 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 Logan County?
Based on EPA SDWIS data, Logan County has a water quality grade of F (3.6/100). 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).
Why does Logan County have so many water violations?
Logan County has 24 health-based drinking water violations on record from the EPA SDWIS database. A higher violation count can result from aging infrastructure, underfunded water utilities, agricultural runoff contamination, or industrial pollution. Counties with more water systems may also see more violations simply due to scale. Residents concerned about water quality should consider independent water testing and home filtration systems.
How does Logan County rank for water quality in Kansas?
Logan County ranks #95 out of 105 counties in Kansas by SDWIS water quality score (1 = best). With a score of 3.6/100, it falls in the bottom 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

Republic County

Kansas

F

3.6

Water score

Gray County

Kansas

F

3.8

Water score

Rush County

Kansas

F

4.1

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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