Buncombe County, North Carolina: drinking water report. Buncombe County – Asheville – serves about 270,000 residents in the heart of the Blue Ridge…
Buncombe County – Asheville – serves about 270,000 residents in the heart of the Blue Ridge Mountains. Asheville draws from the North Fork Reservoir and Burnett Reservoir, fed by streams in protected mountain watersheds. The city's water system serves as the regional provider for much of western North Carolina.
Asheville's mountain reservoir supply produces exceptionally clean source water. UCMR5 data shows minimal PFAS detections. The county does not host major military installations or heavy industrial PFAS sources. According to NC DEQ's 2024 data, the Asheville system met all federal standards.
The system's biggest recent crisis was infrastructure failure – a severe September 2024 flood event (from the remnants of Hurricane Helene) damaged water mains and treatment infrastructure across western North Carolina, leaving Asheville without reliable water service for weeks. The recovery highlighted the vulnerability of mountain infrastructure to extreme weather.
Buncombe County's source water is clean. Infrastructure resilience and flood preparedness are the primary concerns after the 2024 events.
Check your water for current data. A basic carbon filter improves taste. Our water filter guide covers options. Pull your detailed report, and visit our North Carolina page for statewide data.
Drinking water is one exposure route. These federal datasets also cover Buncombe County, NC.
The EPA places Buncombe County, NC in Zone 1 - the EPA's highest-risk category, where the predicted average indoor radon level is above 4 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.
40% of homes in Buncombe County, NC were built before 1980, and 15% 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 Buncombe County, NC averages 6.4 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
24 public water systems serving Buncombe County, NC have EPA lead testing on record. The reported lead sample skews toward systems that already flagged a problem, so its exceedance rate is not directly comparable with other areas. 13 water systems serving Buncombe County, NC carry a health-based EPA Safe Drinking Water Act violation.
| Most-cited violation type | Systems affected |
|---|---|
| Lead and Copper Rule Revisions | 11 |
| Lead and Copper Rule | 4 |
| Turbidity | 1 |
| Long Term 2 Enhanced Surface Water Treatment Rule | 1 |
| Haloacetic Acids (HAA5) | 1 |
Source: EPA Lead and Copper Rule 90th-percentile tap sampling and EPA SDWIS Safe Drinking Water Act enforcement records, aggregated from the public water systems serving this county. Figures are counts of water systems, not a test of any individual home or tap.