Know Your Environment. Protect Your Health.

Nitrate and nitrite

Mechanicsburg Village Public Water System

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)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND10ND
2021ND10ND
20220.120 ppm110.120 ppm
20230.230 ppm110.230 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
2018-04-24A180592715ND
2019-02-269B02842-01ND
2019-03-269C03024-01ND
2020-01-070A00914-01ND
2021-01-061A00377-01ND
2022-07-132G01898-010.120 ppm
2023-05-023E00106-010.230 ppm