Know Your Environment. Protect Your Health.

Nitrate

Northcrest Addition

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0597 ppm220.0534 ppm - 0.0660 ppm
20190.0630 ppm220.0531 ppm - 0.0728 ppm
20200.0676 ppm220.0636 ppm - 0.0715 ppm
20210.0574 ppm220.0558 ppm - 0.0590 ppm
20220.103 ppm220.0615 ppm - 0.144 ppm
20230.0600 ppm220.0501 ppm - 0.0698 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
2018-09-11Q18361650060.0534 ppm
2018-09-11Q18361650110.0660 ppm
2019-10-21Q19730800080.0728 ppm
2019-10-21Q19730800090.0531 ppm
2020-10-13Q20403530070.0636 ppm
2020-10-13Q20403530080.0715 ppm
2021-10-07Q21278730100.0590 ppm
2021-10-07Q21278730150.0558 ppm
2022-10-17Q22315060010.144 ppm
2022-10-17Q22315060050.0615 ppm
2023-05-22Q23190660070.0501 ppm
2023-05-22Q23190660080.0698 ppm