Know Your Environment. Protect Your Health.

Nitrate and nitrite

Cws - Upper Bodfish Water System

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020N/A00N/A
2021N/A00N/A
2022ND30ND
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
2019-02-25CA1510026_004_004-201902251200ND
2019-02-25CA1510026_005_005-201902251210ND
2019-10-15CA1510026_007_007-201910151215ND
2022-02-17CA1510026_004_004-202202170920ND
2022-02-24CA1510026_005_005-202202241144ND
2022-10-06CA1510026_007_007-202210061047ND