Thallium in Delaware Drinking Water
8 public water systems in Delaware have historical EPA violation records associated with thallium in the Q2 2026 snapshot.
10
Historical Records in Delaware
8
Systems With Records
About Thallium
- EPA Limit
- 2 ppb
- Category
- Inorganic
- Health Effects
- Hair loss, kidney, intestine, liver problems
- Common Treatment Approaches
- Ion exchange, activated alumina
Delaware Systems With the Most Thallium Records
MAKAH NEAH BAY
1,300 served3 historical records
D
BIA NORTH IDAHO
490 served1 historical record
C
PASCHAL SHERMAN INDIAN SCHOOL
220 served1 historical record
A
TAHOLAH
1,600 served1 historical record
A
CHEHALIS TRIBAL HOUSING
620 served1 historical record
A
KELLER
340 served1 historical record
A
QUILEUTE WATER SYSTEM
885 served1 historical record
A
HOH TRIBE
120 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.