Know Your Environment. Protect Your Health.

Nitrate and nitrite

Crestwood Mobile Home Park

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.410 ppm110.410 ppm
20190.210 ppm110.210 ppm
20200.360 ppm110.360 ppm
20210.545 ppm220.540 ppm - 0.550 ppm
20220.450 ppm110.450 ppm
20230.490 ppm110.490 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
2018-05-14Y1813700040.410 ppm
2019-05-13Y1913600050.210 ppm
2020-04-13Y2010800150.360 ppm
2021-04-06Y2109800470.540 ppm
2021-08-10Y2122400680.550 ppm
2022-05-16Y2213900120.450 ppm
2023-04-11Y2310300340.490 ppm