Kanawha County, West Virginia: drinking water report. Kanawha County in central West Virginia has about 178,000 residents, with Charleston as both the
Kanawha County in central West Virginia has about 178,000 residents, with Charleston as both the county and state capital. West Virginia American Water draws from the Elk River and the Kanawha River. The county's history as the center of West Virginia's chemical industry – Dow, Union Carbide, and dozens of other firms operated along the Kanawha River valley – defined both its economy and its water quality.
The 2014 Freedom Industries chemical spill dumped crude MCHM (4-methylcyclohexane methanol) into the Elk River upstream of the Charleston water intake, leaving 300,000 residents without usable tap water for days. According to West Virginia DEP's 2024 source water assessment, the Elk River watershed still contains multiple chemical storage and production facilities that handle hazardous materials within the drinking water supply zone.
The Kanawha River, known as "Chemical Valley" for its concentration of industrial facilities, carries decades of legacy contamination. A 2024 WV DEP report found PFAS at 11 ppt in the Kanawha River at Charleston – consistent with industrial sources along the valley. Yeager Airport has also documented AFFF use, adding a military PFAS source.
The 2014 spill demonstrated that Chemical Valley's proximity to the water supply creates real risk. While regulations have improved since then, the fundamental geography has not changed – your drinking water intake sits within a corridor of active chemical facilities.
Check your water for current monitoring data. For the range of industrial and military contaminants present in the Kanawha Valley, reverse osmosis at the kitchen tap provides the broadest household protection. Our water filter guide covers systems rated for industrial-corridor water. Pull your detailed report for historical data, and visit our West Virginia page for statewide context.
Drinking water is one exposure route. These federal datasets also cover Kanawha County, WV.
The EPA places Kanawha County, WV in Zone 3 - the EPA's lowest-risk category, with a predicted average indoor radon level below 2 pCi/L. Zone maps predict an area's radon potential from geology and existing indoor readings; they say nothing about a specific house. Testing is the only way to know your own level.
72% of homes in Kanawha County, WV were built before 1980, and 25% before 1950. Residential lead paint was banned in 1978, so housing age is the strongest available proxy for lead-paint exposure. This describes the county's housing stock, not any one home.
Modelled annual fine-particle pollution (PM2.5) in Kanawha County, WV averages 7.5 µg/m³, within the EPA's annual standard of 9 µg/m³. These are CDC modelled county estimates rather than readings from a specific monitor.
How radon zones work · Air quality by county · Lead exposure guide