Know Your Environment. Protect Your Health.

Nitrate

Linkwood Estates Subdivision

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)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0253 ppm220.0248 ppm - 0.0258 ppm
20190.0264 ppm220.0193 ppm - 0.0335 ppm
20200.0119 ppm21ND - 0.0237 ppm
20210.252 ppm21ND - 0.503 ppm
20220.0500 ppm21ND - 0.1000 ppm
20230.0613 ppm220.0534 ppm - 0.0692 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
2018-02-13Q18058880090.0248 ppm
2018-02-13Q18058880100.0258 ppm
2019-03-05Q19091650050.0193 ppm
2019-03-05Q19091650060.0335 ppm
2020-02-12Q2005782007ND
2020-02-12Q20057820080.0237 ppm
2021-03-16Q21068200050.503 ppm
2021-06-16Q2115848009ND
2022-03-22Q2209181001ND
2022-03-22Q22091810040.1000 ppm
2023-02-21Q23070210010.0534 ppm
2023-12-04Q23512820020.0692 ppm