Know Your Environment. Protect Your Health.

Nitrate and nitrite

Columbiana County-county Home Rd. 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.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.897 ppm12120.200 ppm - 2.01 ppm
20190.637 ppm129ND - 1.33 ppm
20200.523 ppm129ND - 1.25 ppm
20210.532 ppm12120.180 ppm - 1.000 ppm
20220.538 ppm128ND - 1.40 ppm
20230.649 ppm87ND - 1.35 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