Know Your Environment. Protect Your Health.

Nitrate

Crystal Farms Water Supply Corporation

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0223 ppm110.0223 ppm
20190.0202 ppm21ND - 0.0404 ppm
20200.0390 ppm220.0267 ppm - 0.0513 ppm
20210.00915 ppm21ND - 0.0183 ppm
20220.0501 ppm220.0414 ppm - 0.0587 ppm
20230.0242 ppm220.0213 ppm - 0.0271 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
2018-06-20Q18244850070.0223 ppm
2019-07-25Q1947858002ND
2019-10-31Q19746640090.0404 ppm
2020-03-12Q20104380120.0267 ppm
2020-03-12Q20104380130.0513 ppm
2021-05-20Q21132620090.0183 ppm
2021-05-20Q2113262011ND
2022-02-22Q22062220070.0587 ppm
2022-02-22Q22062220080.0414 ppm
2023-09-07Q23385970120.0213 ppm
2023-09-07Q23385970140.0271 ppm