Know Your Environment. Protect Your Health.

Nitrate

Baldwin, Village of

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.383 ppm63ND - 1.20 ppm
20190.125 ppm41ND - 0.500 ppm
20200.270 ppm43ND - 0.771 ppm
20210.332 ppm42ND - 0.669 ppm
20220.293 ppm42ND - 0.665 ppm
20230.137 ppm41ND - 0.547 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
2018-03-11LLH71487ND
2018-03-19LLH714880.500 ppm
2018-04-25LLH773841.20 ppm
2018-04-25LLH77381ND
2018-04-25LLH77383ND
2018-04-25LLH773820.600 ppm
2019-09-10LLI62946ND
2019-09-10LLI629480.500 ppm
2019-09-10LLI62945ND
2019-09-10LLI62947ND
2020-09-170.165 ppm
2020-09-170.143 ppm
2020-09-17ND
2020-09-170.771 ppm
2021-03-11ND
2021-03-11ND
2021-03-110.669 ppm
2021-03-110.659 ppm
2022-05-180.665 ppm
2022-05-180.506 ppm
2022-05-18ND
2022-05-18ND
2023-08-16ND
2023-08-160.547 ppm
2023-09-12ND
2023-09-12ND