Know Your Environment. Protect Your Health.

Nitrate and nitrite

Lone Grove

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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND60ND
2020ND60ND
2021ND60ND
2022ND60ND
2023ND60ND

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
2018-02-121802349ND
2018-02-121802350ND
2018-02-121802351ND
2018-02-121802352ND
2018-02-121802353ND
2018-12-161812432ND
2019-02-271902678ND
2019-02-271902679ND
2019-02-271902677ND
2019-02-271902676ND
2019-02-271902675ND
2019-11-031911028ND
2020-12-17104167-01ND
2020-12-17104167-02ND
2020-12-17104167-03ND
2020-12-17104167-04ND
2020-12-17104167-05ND
2020-12-17104167-06ND
2021-02-02104677-01ND
2021-02-02104677-06ND
2021-02-02104677-05ND
2021-02-02104677-04ND
2021-02-02104677-03ND
2021-02-02104677-02ND
2022-02-08110195-01ND
2022-02-08110195-02ND
2022-02-08110195-03ND
2022-02-08110195-04ND
2022-02-08110195-05ND
2022-02-08110195-06ND
2023-02-12115488-01ND
2023-02-12115488-02ND
2023-02-12115488-03ND
2023-02-12115488-04ND
2023-02-12115488-05ND
2023-02-12115488-06ND