Know Your Environment. Protect Your Health.

Nitrate

City of Bells

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)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0380 ppm220.0101 ppm - 0.0658 ppm
20190.0493 ppm220.0482 ppm - 0.0503 ppm
20200.0644 ppm220.0467 ppm - 0.0820 ppm
20210.0624 ppm220.0522 ppm - 0.0725 ppm
20220.0715 ppm220.0459 ppm - 0.0971 ppm
20230.0451 ppm220.0420 ppm - 0.0481 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
2018-03-15Q18107710070.0101 ppm
2018-03-15Q18107710080.0658 ppm
2019-04-30Q19171450020.0503 ppm
2019-04-30Q19171450080.0482 ppm
2020-07-15Q20277420030.0467 ppm
2020-07-15Q20277420040.0820 ppm
2021-10-19Q21293170110.0522 ppm
2021-10-19Q21293170120.0725 ppm
2022-06-13Q22163690030.0459 ppm
2022-06-13Q22163690040.0971 ppm
2023-06-05Q23208140070.0481 ppm
2023-06-05Q23208140080.0420 ppm