Know Your Environment. Protect Your Health.

Nitrate

Necedah Waterworks

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)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.713 ppm220.708 ppm - 0.718 ppm
20190.697 ppm220.597 ppm - 0.796 ppm
2020N/A00N/A
20210.699 ppm440.639 ppm - 0.759 ppm
20220.665 ppm220.650 ppm - 0.680 ppm
20230.675 ppm220.670 ppm - 0.680 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
2018-08-1518H0610-010.708 ppm
2018-08-1918H0610-020.718 ppm
2019-04-3019E0023-010.597 ppm
2019-04-3019E0023-020.796 ppm
2021-03-1021C0395-010.639 ppm
2021-03-1021C0395-020.759 ppm
2021-03-1021C0395-010.639 ppm
2021-03-1021C0395-020.759 ppm
2022-09-1322I0403-010.650 ppm
2022-09-1322I0403-020.680 ppm
2023-03-0823C0292-020.670 ppm
2023-03-0823C0292-010.680 ppm