Know Your Environment. Protect Your Health.

Nitrate

Sunchase Meadows

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.130 ppm220.0234 ppm - 0.236 ppm
20190.0318 ppm330.0283 ppm - 0.0342 ppm
20200.0594 ppm330.0423 ppm - 0.0799 ppm
20210.115 ppm32ND - 0.306 ppm
20220.158 ppm21ND - 0.316 ppm
20230.0406 ppm220.0314 ppm - 0.0497 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
2018-10-02Q18394020040.0234 ppm
2018-10-02Q18394020070.236 ppm
2019-04-02Q19132170070.0329 ppm
2019-04-02Q19132170120.0342 ppm
2019-04-02Q19132170230.0283 ppm
2020-01-28Q20031940080.0423 ppm
2020-03-30Q20129210020.0799 ppm
2020-03-30Q20129210040.0560 ppm
2021-08-19Q21225730080.306 ppm
2021-08-19Q21225730090.0381 ppm
2021-08-19Q2122573010ND
2022-02-17Q22059340120.316 ppm
2022-02-17Q2205934017ND
2023-10-24Q23457890080.0497 ppm
2023-10-24Q23457890090.0314 ppm