Know Your Environment. Protect Your Health.

Nitrate and nitrite

Elsberry PWS

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0150 ppm110.0150 ppm
20190.0450 ppm110.0450 ppm
20200.0330 ppm110.0330 ppm
20210.0240 ppm110.0240 ppm
20220.0410 ppm110.0410 ppm
20230.0190 ppm110.0190 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
2018-12-17AD374180.0150 ppm
2019-09-05AD547690.0450 ppm
2020-04-2920046130.0330 ppm
2021-04-1821041920.0240 ppm
2022-04-2122048470.0410 ppm
2023-04-1923038940.0190 ppm