Total Trihalomethanes (TTHMs) in Alabama Drinking Water
161 public water systems in Alabama have historical EPA violation records associated with total trihalomethanes (tthms) in the Q2 2026 snapshot.
480
Historical Records in Alabama
161
Systems With Records
About Total Trihalomethanes (TTHMs)
- EPA Limit
- 80 ppb
- Category
- Disinfection Byproducts
- Health Effects
- Liver, kidney, nervous system problems; increased cancer risk
- Common Treatment Approaches
- Activated carbon filters
Alabama Systems With the Most Total Trihalomethanes (TTHMs) Records
Mashantucket Pequot Water System
22,171 served4 historical records
B
Mohegan Tribal Utility Authority
31,961 served1 historical record
A
These counts describe historical compliance records, not present concentrations or household test results. Confirm current conditions with the utility's latest Consumer Confidence Report.