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Lassen County Water Quality

Lassen County, California

Water Grade

C

Water Score

54.6

Violations

2

State Rank

#19

of 58 (1 = best)

Water Quality Details

Water Quality Grade

C

Based on EPA compliance history and violation data

Water Score

54.6/100

Higher = better quality

Health Violations

2

Health-based violations

Violation Rate

10.7%

Systems with violations

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Frequently Asked Questions

What is the water quality in Lassen County, California?
Lassen County, California has a water quality grade of C with a score of 54.6/100, based on EPA Safe Drinking Water Information System data. The county has 2 health-based drinking water violations on record.
Are there any water violations in Lassen County?
Lassen County has 2 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.
How does Lassen County water compare to the California average?
Lassen County's water quality score of 54.6/100 is higher 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.
Is tap water safe to drink in Lassen County?
Based on EPA data, Lassen County has a water quality grade of C (54.6/100). This indicates moderate water quality. Some violations have been recorded but overall compliance is maintained. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).
Does Lassen County have clean drinking water?
Lassen County has 2 health-based drinking water violations according to EPA records. With a water quality score of 54.6/100 and grade C, 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.
How does Lassen County rank for water quality in California?
Lassen County ranks #19 out of 58 counties in California by water quality score (1 = best). With a score of 54.6/100, it falls in the top third of counties statewide. Rankings are based on EPA Safe Drinking Water Information System (SDWIS) data including health-based violations and compliance records.

Counties with Similar Water Quality

San Diego County

California

C

54.6

Water score

Humboldt County

California

C

54.8

Water score

Fresno County

California

C

52.5

Water score

Data Source

Water quality data sourced 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.

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