Know Your Environment. Protect Your Health.

Nitrate and nitrite

Canada Woods Water Company

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)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.417 ppm64ND - 0.700 ppm
20190.0300 ppm102ND - 0.200 ppm
2020N/A00N/A
20210.225 ppm41ND - 0.900 ppm
20220.244 ppm92ND - 1.10 ppm
2023ND30ND

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
2018-04-06CA2702588_028_028-2018040610500.600 ppm
2018-04-06CA2702588_008_008-2018040611100.500 ppm
2018-04-06CA2702588_029_029-2018040610100.700 ppm
2018-07-10CA2702588_028_028-2018071014100.700 ppm
2018-12-20CA2702588_001_001-201812201104ND
2018-12-20CA2702588_002_002-201812201110ND
2019-02-19CA2702588_008_008-201902191138ND
2019-03-28CA2702588_027_027-2019032812160.1000 ppm
2019-07-16CA2702588_027_027-201907161033ND
2019-07-16CA2702588_008_008-201907161042ND
2019-07-16CA2702588_028_028-201907160955ND
2019-07-16CA2702588_010_010-201907161106ND
2019-07-16CA2702588_029_029-2019071612250.200 ppm
2019-08-19CA2702588_010_010-201908190845ND
2019-08-27CA2702588_001_001-201908271122ND
2019-08-27CA2702588_002_002-201908271134ND
2021-06-24CA2702588_002_002-202106240740ND
2021-06-24CA2702588_001_001-202106240735ND
2021-12-20CA2702588_028_028-2021122009000.900 ppm
2021-12-20CA2702588_029_029-202112201015ND
2022-02-03CA2702588_008_008-202202031100ND
2022-02-03CA2702588_028_028-202202030910ND
2022-07-26CA2702588_002_002-202207261000ND
2022-07-26CA2702588_001_001-202207261000ND
2022-08-25CA2702588_028_028-2022082509201.10 ppm
2022-08-25CA2702588_029_029-202208251020ND
2022-08-25CA2702588_027_027-202208250940ND
2022-08-25CA2702588_010_010-2022082510001.10 ppm
2022-08-25CA2702588_008_008-202208251045ND
2023-01-31CA2702588_012_012-202301311045ND
2023-07-20CA2702588_001_001-202307201320ND
2023-07-20CA2702588_002_002-202307201320ND