Know Your Environment. Protect Your Health.

Nitrate

Jblm Mcchord Field

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.

 

45

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0754 ppm81ND - 0.603 ppm
20190.0288 ppm51ND - 0.144 ppm
2020N/A00N/A
20210.0844 ppm204ND - 1.04 ppm
20220.110 ppm61ND - 0.660 ppm
20230.148 ppm62ND - 0.690 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
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-140.603 ppm
2019-07-31ND
2019-07-31ND
2019-07-31ND
2019-07-31ND
2019-07-310.144 ppm
2021-03-254213518ND
2021-03-254213519ND
2021-03-2542135170.160 ppm
2021-03-254213520ND
2021-04-074213521ND
2021-06-1642135031.04 ppm
2021-06-164213501ND
2021-06-164213504ND
2021-06-1642135020.128 ppm
2021-07-294213511ND
2021-07-294213512ND
2021-07-294213514ND
2021-07-294213513ND
2021-11-174207251ND
2021-11-174206435ND
2021-11-174206433ND
2021-11-184206430ND
2021-11-194207255ND
2021-11-1942072520.360 ppm
2021-11-194207246ND
2022-09-074336805ND
2022-09-084336810ND
2022-09-084336811ND
2022-09-084336809ND
2022-09-084336807ND
2022-09-2843699080.660 ppm
2023-06-1444700870.200 ppm
2023-09-064521506ND
2023-09-0645215080.690 ppm
2023-09-064521507ND
2023-10-124538108ND
2023-11-134553493ND