Ketchikan Gateway Borough Water Quality

Ketchikan Gateway Borough, Alaska has a water quality grade of F with a score of 5.1/100, based on EPA Safe Drinking Water Information System data. The county has 77 health-based drinking water violations on record.

Ketchikan Gateway Borough has 77 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.

Ketchikan Gateway Borough's water quality score of 5.1/100 is lower than the Alaska state average of 19.8. The average water quality grade across Alaska is F, based on data from 22 counties with available water quality data.

Based on EPA data, Ketchikan Gateway Borough has a water quality grade of F (5.1/100). 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).

Ketchikan Gateway Borough has 77 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.

Ketchikan Gateway Borough ranks #15 out of 22 counties in Alaska by water quality score (1 = best). With a score of 5.1/100, it falls in the middle third of counties statewide. Rankings are based on EPA Safe Drinking Water Information System (SDWIS) data including health-based violations and compliance records.