Know Your Environment. Protect Your Health.

Nitrate

Travis Air Force Base Water Treatment Plant - Vallejo

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

 

44

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND70ND
2020ND100ND
2021ND80ND
20220.178 ppm82ND - 0.800 ppm
20230.0800 ppm61ND - 0.480 ppm

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

The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppm = parts per million

All test results

Date Lab ID Result
2018-01-09CA4810015_003_003-201801090758ND
2018-01-09CA4810015_003_003-201801090802ND
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
2019-04-15CA4810015_001_001-201904151145ND
2019-07-01CA4810015_003_003-201907010817ND
2019-07-22CA4810015_001_001-201907221218ND
2019-09-23CA4810015_001_001-201909231205ND
2019-10-21CA4810015_001_001-201910211154ND
2020-01-07CA4810015_003_003-202001070855ND
2020-01-13CA4810015_002_002-202001130843ND
2020-01-13CA4810015_001_001-202001131126ND
2020-04-01CA4810015_003_003-202004010825ND
2020-04-20CA4810015_001_001-202004201100ND
2020-07-13CA4810015_001_001-202007131124ND
2020-09-14CA4810015_001_001-202009141102ND
2020-10-05CA4810015_003_003-202010050842ND
2020-10-13CA4810015_005_005-202010130840ND
2020-10-13CA4810015_001_001-202010131110ND
2021-01-11CA4810015_001_001-202101111203ND
2021-01-11CA4810015_003_003-202101110850ND
2021-04-01CA4810015_003_003-202104010821ND
2021-04-12CA4810015_001_001-202104121057ND
2021-07-07CA4810015_003_003-202107070820ND
2021-07-12CA4810015_001_001-202107121054ND
2021-09-13CA4810015_001_001-202109131133ND
2021-10-19CA4810015_001_001-202110191025ND
2022-01-05CA4810015_003_003-2022010509060.620 ppm
2022-01-10CA4810015_001_001-2022011011250.800 ppm
2022-04-11CA4810015_001_001-202204111110ND
2022-07-06CA4810015_003_003-202207060830ND
2022-07-11CA4810015_001_001-202207111109ND
2022-09-12CA4810015_001_001-202209121111ND
2022-10-17CA4810015_001_001-202210171120ND
2022-11-21CA4810015_003_003-202211211130ND
2023-01-09CA4810015_001_001-202301091157ND
2023-01-10CA4810015_003_003-202301100815ND
2023-04-10CA4810015_001_001-2023041010390.480 ppm
2023-07-10CA4810015_001_001-202307101150ND
2023-09-11CA4810015_001_001-202309111259ND
2023-10-16CA4810015_001_001-202310161157ND