Know Your Environment. Protect Your Health.

Nitrate and nitrite

City of Baker 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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0250 ppm82ND - 0.1000 ppm
20190.0250 ppm82ND - 0.1000 ppm
20200.1000 ppm43ND - 0.200 ppm
20210.1000 ppm42ND - 0.200 ppm
2022ND40ND
2023ND40ND

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
2018-03-02AE20795ND
2018-03-02AE20794ND
2018-03-02AE207930.1000 ppm
2018-03-02AE20792ND
2018-03-02AE207930.1000 ppm
2018-03-02AE20794ND
2018-03-02AE20795ND
2018-03-02AE20792ND
2019-02-12B1900637-0010.1000 ppm
2019-02-12B1900637-003ND
2019-02-12B1900637-002ND
2019-02-12B1900637-0010.1000 ppm
2019-02-12B1900637-003ND
2019-02-12B1900637-002ND
2019-04-30B1901710-001ND
2019-04-30B1901710-001ND
2020-03-20B2001371-0010.200 ppm
2020-03-20B2001371-0040.1000 ppm
2020-03-20B2001371-0030.1000 ppm
2020-03-20B2001371-002ND
2021-02-19B2100628-001ND
2021-02-19B2100628-0020.200 ppm
2021-02-19B2100628-0030.200 ppm
2021-02-19B2100628-004ND
2022-01-25B2200320-004ND
2022-01-25B2200320-005ND
2022-01-25B2200320-006ND
2022-05-03B2202143-002ND
2023-11-28B2305035-001ND
2023-11-28B2305035-002ND
2023-11-28B2305035-003ND
2023-11-28B2305035-004ND