Know Your Environment. Protect Your Health.

Nitrate and nitrite

Bethany Special Utility District

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)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
20190.0469 ppm110.0469 ppm
20200.123 ppm110.123 ppm
20210.0823 ppm440.0549 ppm - 0.137 ppm
2022N/A00N/A
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
2020-05-20Q20201000030.123 ppm
2021-06-24Q21165910080.0562 ppm
2021-06-24Q21165910090.0811 ppm
2021-06-24Q21165910100.0549 ppm
2021-06-24Q21165910110.137 ppm