Arsenic in Connecticut Drinking Water
176 public water systems in Connecticut have historical EPA violation records associated with arsenic in the Q2 2026 snapshot.
1,226
Historical Records in Connecticut
176
Systems With Records
About Arsenic
- EPA Limit
- 10 ppb
- Category
- Inorganic
- Health Effects
- Skin damage, circulatory problems, increased cancer risk
- Common Treatment Approaches
- Reverse osmosis, distillation
Connecticut Systems With the Most Arsenic Records
Polacca
3,890 served92 historical records
F
Mishongnovi (Upper Sipaulovi/Upper Mishongnovi)
490 served77 historical records
D
Sipaulovi (Lower Sipaulovi/Lower Mishongnovi)
609 served75 historical records
F
Shungopavi
1,430 served71 historical records
F
Utu Utu Gwaitu Paiute Tribe
222 served48 historical records
F
Battle Mountain
195 served43 historical records
D
DD Mobile Home Park
275 served42 historical records
D
Torres-Martinez Clinic
379 served41 historical records
B
Hopi High School - BIA
1,005 served38 historical records
F
Yerington (Campbell Ranch)
512 served38 historical records
F
SCUA Upper Seven Mile
8,478 served37 historical records
F
Sutcliffe
250 served36 historical records
F
Oasis Mobile Home Park
826 served33 historical records
D
BIA Keams Canyon
925 served32 historical records
C
Yavapai Apache - Middle Verde
2,200 served25 historical records
C
BIA Truxton Agency
16 served25 historical records
C
Second Mesa Day School - BIA
255 served25 historical records
D
South Fork (Te-Moak)
40 served23 historical records
D
Havasupai Village
885 served23 historical records
D
Tule River Reservation Main
2,560 served16 historical records
F
These counts describe historical compliance records, not present concentrations or household test results. Confirm current conditions with the utility's latest Consumer Confidence Report.