Total Trihalomethanes (TTHMs) in Arkansas Drinking Water
130 public water systems in Arkansas have historical EPA violation records associated with total trihalomethanes (tthms) in the Q2 2026 snapshot.
1,036
Historical Records in Arkansas
130
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
Arkansas Systems With the Most Total Trihalomethanes (TTHMs) Records
MOLE LAKE
1,260 served3 historical records
C
GRAND PORTAGE
820 served3 historical records
F
WETMORE
52 served1 historical record
B
MANISTIQUE
147 served1 historical record
B
RED WING
100 served1 historical record
C
LOWER SIOUX
4,000 served1 historical record
C
RIDGE ROAD
99 served1 historical record
A
VERMILION
450 served1 historical record
C
NEW ODANAH
1,839 served1 historical record
C
INDIAN POINT
61 served1 historical record
C
RED CLIFF NORTH
2,080 served1 historical record
B
These counts describe historical compliance records, not present concentrations or household test results. Confirm current conditions with the utility's latest Consumer Confidence Report.