Tap water in Signal Mountain, TN — ZIP 37343
4 public water systems serving about 128,852 people. PFAS "forever chemicals" have been detected here.
D
Poor
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5
testing. Levels and the 2024 federal limits are shown per system below.
Water systems serving 37343
Hixson Utility District
PWSID TN0000303 · serves 68,306 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 10 ppt
Savannah Valley U.d.
PWSID TN0000613 · serves 30,571 ·
surface water
0 health-based / 2 total violations (5 yrs)
· PFAS up to 49 ppt — above federal limit
Northwest Utility District
PWSID TN0000169 · serves 20,710 ·
surface water
0 health-based / 1 total violations (5 yrs)
Walden's Ridge U.d.
PWSID TN0000635 · serves 9,265 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 5.1 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology