Know Your Environment. Protect Your Health.

Perchlorate

Canada Woods Water Company

Perchlorate, a component of rocket fuel, occurs both naturally and as a synthetic chemical. Ingested perchlorate interferes with thyroid function. Exposure to perchlorate during pregnancy and childhood can impair cognitive development. Read More.

According to the EPA, perchlorate likely contaminates the water of more than 16 million Americans. Perchlorate interferes with iodine uptake in the thyroid, which can result in reduced thyroid hormones and an impact on metabolism, physical development and cognitive development. Children and developing fetuses are the most at risk from perchlorate contamination.

Perchlorate is the only unregulated contaminant for which the EPA has attempted to set a federal drinking water standard since 1996. However, the agency has yet to propose a draft limit for this contaminant. Perchlorate in drinking water is regulated in Arizona, California, Massachusetts, New Jersey, New York and Texas. California set a public health goal of 1 part per billion for perchlorate in 2015.

Click here to read more about perchlorate.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND50ND
2020ND60ND
2021ND20ND
2022ND30ND
2023ND70ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppb

The EWG Health Guideline of 1 ppb for perchlorate was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2018-12-06CA2702588_002_002-201812061314ND
2018-12-06CA2702588_001_001-201812061303ND
2019-10-24CA2702588_001_001-201910241206ND
2019-10-24CA2702588_002_002-201910241215ND
2019-12-12CA2702588_010_010-201912120751ND
2019-12-19CA2702588_002_002-201912190908ND
2019-12-19CA2702588_001_001-201912190912ND
2020-07-23CA2702588_002_002-202007230904ND
2020-07-23CA2702588_001_001-202007230855ND
2020-10-20CA2702588_028_028-202010201007ND
2020-10-20CA2702588_027_027-202010200940ND
2020-10-20CA2702588_008_008-202010200954ND
2020-10-20CA2702588_029_029-202010200849ND
2021-06-24CA2702588_001_001-202106240735ND
2021-06-24CA2702588_002_002-202106240740ND
2022-07-26CA2702588_001_001-202207261000ND
2022-07-26CA2702588_002_002-202207261000ND
2022-12-13CA2702588_010_010-202212131230ND
2023-07-20CA2702588_001_001-202307201320ND
2023-07-20CA2702588_002_002-202307201320ND
2023-10-19CA2702588_029_029-202310191410ND
2023-10-19CA2702588_008_008-202310191315ND
2023-10-19CA2702588_012_012-202310191215ND
2023-10-19CA2702588_027_027-202310191240ND
2023-10-19CA2702588_028_028-202310191300ND