Know Your Environment. Protect Your Health.

Nitrate and nitrite

Town of Snow Hill

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020N/A00N/A
2021ND30ND
2022ND10ND
2023N/A00N/A

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.14 ppm

The EWG health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL): 10 ppm

ppm = parts per million

All test results

Date Lab ID Result
2018-06-200230007_062018_TP01ND
2018-06-200230007_062018_TP03ND
2018-06-220230007_062218_TP02ND
2019-06-06E19004201001ND
2021-02-10TSH_1ND
2021-02-10TSH_2ND
2021-02-10TSH_3ND
2022-03-29E2201003601ND