Know Your Environment. Protect Your Health.

Nitrate and nitrite

Chapel Point Wds/ Jude House/ Community Center

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND30ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-04-0336222_000001ND
2019-03-063020513001ND
2019-04-033026080001ND
2019-06-20E19004410002ND
2020-03-0920030906_001ND
2020-04-1320041307_001ND
2021-03-0921030909_001ND
2021-04-0621040624_001ND
2022-03-2822032809_001ND
2022-04-0422040409_002ND
2023-03-0723030719-001ND
2023-04-0423040410-001ND