Know Your Environment. Protect Your Health.

Nitrate and nitrite

Yorkville 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.

 

5

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.800 ppm110.800 ppm
20190.760 ppm110.760 ppm
20200.990 ppm110.990 ppm
20211.69 ppm111.69 ppm
20221.83 ppm111.83 ppm
20232.03 ppm112.03 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
2018-05-04A1805851610.800 ppm
2019-04-059D00983-010.760 ppm
2020-02-210B02379-010.990 ppm
2021-03-051C00909-031.69 ppm
2022-01-212A02432-011.83 ppm