Nitrate in Delaware Drinking Water
73 public water systems in Delaware have historical EPA violation records associated with nitrate in the Q2 2026 snapshot.
171
Historical Records in Delaware
73
Systems With Records
About Nitrate
- EPA Limit
- 10000 ppb
- Category
- Inorganic
- Health Effects
- Blue baby syndrome in infants under six months
- Common Treatment Approaches
- Reverse osmosis, ion exchange
Delaware Systems With the Most Nitrate Records
METLAKATLA
1,575 served9 historical records
F
HOH TRIBE
120 served6 historical records
B
WELLPINIT
525 served5 historical records
A
MARTHA BOARDMAN
295 served5 historical records
A
FORD-NEWHOUSE LANE
160 served5 historical records
A
OMAK HUD
380 served5 historical records
A
PASCHAL SHERMAN INDIAN SCHOOL
220 served4 historical records
A
NISQUALLY-LESCHI & WEST NISQUALLY
3,200 served4 historical records
A
MCCOY LAKE
325 served4 historical records
A
RESERVATION ROAD
110 served4 historical records
A
MALOTT
95 served4 historical records
A
KELLER
340 served4 historical records
A
INDIANOLA
78 served4 historical records
A
SKOKOMISH
1,150 served3 historical records
A
BIA NORTH IDAHO
490 served3 historical records
C
PORT SUSAN CAMP CLUB #2
1,000 served3 historical records
A
PORT SUSAN CAMP CLUB #1
1,500 served3 historical records
A
PORT SUSAN CAMP CLUB #3
1,000 served3 historical records
A
QUEETS
200 served3 historical records
A
CUYAMACA
375 served3 historical records
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.