Benzene in Colorado Drinking Water
143 public water systems in Colorado have historical EPA violation records associated with benzene in the Q2 2026 snapshot.
227
Historical Records in Colorado
143
Systems With Records
About Benzene
- EPA Limit
- 5 ppb
- Category
- Organic
- Health Effects
- Anemia, decrease in blood platelets, increased cancer risk
- Common Treatment Approaches
- Granular activated carbon
Colorado Systems With the Most Benzene Records
WHITE MESA WATER SYSTEM
300 served4 historical records
C
ARAPAHOE COMM WATER SYSTEM
4,100 served4 historical records
B
DAKOTA MAGIC CASINO
2,360 served2 historical records
D
MNIHNAPA WATER SYSTEM
220 served2 historical records
A
WHITEROCKS WATER SYSTEM
812 served2 historical records
B
FORT THOMPSON WATER SYSTEM
1,357 served1 historical record
B
ROSEBUD RURAL WATER SYSTEM
5,500 served1 historical record
B
HOT SPRINGS COURT
55 served1 historical record
D
BELCOURT-TURTLE MTN RURAL WATER SYSTEM
13,500 served1 historical record
D
PRYOR WATER SYSTEM
406 served1 historical record
C
AMERICAN HORSE SCHOOL
400 served1 historical record
B
WOUNDED KNEE DISTRICT SCHOOL
280 served1 historical record
D
ROCKY BOY'S RURAL WATER
2,000 served1 historical record
C
ETHETE WATER SYSTEM
1,950 served1 historical record
C
URIAH HEEPS SPRING WATER SYSTEM
3,750 served1 historical record
D
HEART BUTTE SCHOOL
250 served1 historical record
C
FORT WASHAKIE
2,620 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.