Know Your Environment. Protect Your Health.

Nitrate and nitrite

Ak Addiction Rehabilitation Svcs Inc.

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

 

12

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.21 ppm330.374 ppm - 5.53 ppm
20191.50 ppm330.470 ppm - 3.13 ppm
20200.306 ppm220.259 ppm - 0.353 ppm
20210.341 ppm220.300 ppm - 0.381 ppm
20220.309 ppm110.309 ppm
20230.316 ppm110.316 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

ppm = parts per million

All test results

Date Lab ID Result
2018-05-09IN*M1803365.53 ppm
2018-08-09IN*M1805730.720 ppm
2018-11-27M1808700.374 ppm
2019-05-13M1903973.13 ppm
2019-08-12M1906920.911 ppm
2019-10-28M1910820.470 ppm
2020-02-2812008140010.353 ppm
2020-03-13M2001820.259 ppm
2021-02-2312108340010.300 ppm
2021-08-24M2108830.381 ppm
2022-04-0712216920040.309 ppm
2023-04-06M2302890.316 ppm