Know Your Environment. Protect Your Health.

Nitrate and nitrite

Travis Air Force Base Water Treatment Plant - Vallejo

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND30ND
2020ND30ND
2021ND30ND
20220.620 ppm110.620 ppm
2023ND10ND

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
2018-01-09CA4810015_003_003-201801090802ND
2018-01-09CA4810015_003_003-201801090758ND
2018-04-11CA4810015_003_003-201804110740ND
2018-07-09CA4810015_003_003-201807090840ND
2018-09-27CA4810015_001_001-201809271105ND
2019-01-07CA4810015_003_003-201901070825ND
2019-04-02CA4810015_003_003-201904020750ND
2019-07-01CA4810015_003_003-201907010817ND
2020-01-07CA4810015_003_003-202001070855ND
2020-04-01CA4810015_003_003-202004010825ND
2020-10-05CA4810015_003_003-202010050842ND
2021-01-11CA4810015_003_003-202101110850ND
2021-04-01CA4810015_003_003-202104010821ND
2021-07-07CA4810015_003_003-202107070820ND
2022-01-05CA4810015_003_003-2022010509060.620 ppm
2023-01-10CA4810015_003_003-202301100815ND