Know Your Environment. Protect Your Health.

Nitrate and nitrite

Cameron Parish Water and Water Works District 1

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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0500 ppm82ND - 0.200 ppm
2019ND80ND
2020ND40ND
20210.0250 ppm41ND - 0.1000 ppm
2022ND40ND
2023ND40ND

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
2018-06-05B1802353-003ND
2018-06-05B1802353-002ND
2018-06-05B1802353-001ND
2018-06-05B1802353-002ND
2018-06-05B1802353-003ND
2018-06-05B1802353-001ND
2018-08-28B1803920-0010.200 ppm
2018-08-28B1803920-0010.200 ppm
2019-05-14B1902026-002ND
2019-05-14B1902026-001ND
2019-05-14B1902026-004ND
2019-05-14B1902026-003ND
2019-05-14B1902026-002ND
2019-05-14B1902026-001ND
2019-05-14B1902026-004ND
2019-05-14B1902026-003ND
2020-03-09B2001278-005ND
2020-03-09B2001278-008ND
2020-03-09B2001278-007ND
2020-03-09B2001278-006ND
2021-04-26B2101831-001ND
2021-04-26B2101831-002ND
2021-04-26B2101831-003ND
2021-10-25B2105907-0010.1000 ppm
2022-01-24B2200476-001ND
2022-01-24B2200476-002ND
2022-01-24B2200476-003ND
2022-01-24B2200476-004ND
2023-02-27B2300793-005ND
2023-02-27B2300793-006ND
2023-02-27B2300793-007ND
2023-02-27B2300793-008ND