Know Your Environment. Protect Your Health.

Nitrate and nitrite

Bayou La Batre Utilities

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20190.0800 ppm21ND - 0.160 ppm
2020ND10ND
2021N/A00N/A
20220.0225 ppm21ND - 0.0450 ppm
2023N/A00N/A

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
2018-06-13180614041-1IND
2019-01-3019010725-0010.160 ppm
2019-11-2120131445001_IIOCND
2020-03-1620146809001_IIOCND
2022-05-2520244811002_IIOC0.0450 ppm
2022-05-2520244818001_IIOCND