Know Your Environment. Protect Your Health.

Nitrate and nitrite

City of Vidalia 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
20190.0667 ppm62ND - 0.200 ppm
2020ND10ND
2021ND10ND
2022ND10ND
20230.200 ppm110.200 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
2018-10-1835425431001ND
2018-10-1835425431001ND
2019-10-08B1904559-001ND
2019-10-08B1904559-002ND
2019-10-08B1904559-0030.200 ppm
2019-10-08B1904559-001ND
2019-10-08B1904559-002ND
2019-10-08B1904559-0030.200 ppm
2020-02-1235530813001ND
2021-03-11B2101153-001ND
2022-09-12B2204413-004ND
2023-02-22B2300768-0010.200 ppm