Jackson County, North Carolina: drinking water report. Jackson County – Sylva – serves about 45,000 residents (including Western Carolina University…
Jackson County – Sylva – serves about 45,000 residents (including Western Carolina University students) in the Great Smoky Mountains. Water comes from mountain streams in the Tuckasegee River watershed, providing naturally pristine source water.
Jackson County's high mountain watersheds produce some of the cleanest source water in North Carolina. UCMR5 data shows no significant PFAS detections. According to NC DEQ's 2024 data, systems met all standards. The 2024 Hurricane Helene flooding affected infrastructure in the county.
Jackson County's mountain water is clean. Infrastructure resilience after the 2024 flooding is the main ongoing concern.
Check your water for data. 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 Jackson County, NC.
The EPA places Jackson County, NC in Zone 2 - a moderate-risk category, with a predicted average indoor radon level between 2 and 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.
33% of homes in Jackson County, NC were built before 1980, and 8% 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 Jackson County, NC averages 6.1 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
Across 42 public water systems serving Jackson County, NC with EPA lead testing on record, 4 (9.5%) reported a 90th-percentile lead result above the EPA's 15 ppb action level, and the median is 3.3 ppb. 20 water systems serving Jackson County, NC carry a health-based EPA Safe Drinking Water Act violation.
| Most-cited violation type | Systems affected |
|---|---|
| Lead and Copper Rule | 14 |
| Lead and Copper Rule Revisions | 7 |
| Surface Water Treatment Rule | 1 |
| Interim Enhanced Surface Water Treatment Rule | 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.