Know Your Environment. Protect Your Health.

Nitrate and nitrite

Mystic Village Apartments

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.990 ppm110.990 ppm
20190.795 ppm220.740 ppm - 0.850 ppm
20200.660 ppm110.660 ppm
20210.450 ppm110.450 ppm
20220.465 ppm220.440 ppm - 0.490 ppm
20230.810 ppm110.810 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
2018-05-08CA42679NOX0.990 ppm
2019-02-05CC410280.740 ppm
2019-05-14CD125260.850 ppm
2020-04-08CF703680.660 ppm
2021-04-13CH980160.450 ppm
2022-02-08CK319330.490 ppm
2022-05-10CL268030.440 ppm
2023-02-14CN422100.810 ppm