Modoc County Water Quality

Modoc County, California has a water quality grade of F with a score of 31.1/100, based on EPA Safe Drinking Water Information System data. The county has 3 health-based drinking water violations on record.

Modoc County has 3 health-based drinking water violations recorded by the EPA. 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.

Modoc County's water quality score of 31.1/100 is lower than the California state average of 44.6. The average water quality grade across California is D, based on data from 58 counties with available water quality data.

Based on EPA data, Modoc County has a water quality grade of F (31.1/100). This indicates below-average water quality with significant compliance issues. Residents may want to consider home water filtration. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).

Modoc County has 3 health-based drinking water violations according to EPA records. With a water quality score of 31.1/100 and grade F, the county's drinking water has had some compliance issues but continues to be monitored. For the most current safety information, check with your local water utility.

Modoc County ranks #42 out of 58 counties in California by water quality score (1 = best). With a score of 31.1/100, it falls in the bottom third of counties statewide. Rankings are based on EPA Safe Drinking Water Information System (SDWIS) data including health-based violations and compliance records.