Know Your Environment. Protect Your Health.

Nitrate and nitrite

Stringer Water Works

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
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
2018-02-21180222-040NIND
2018-02-21180222-047NIND
2018-02-21180222-060NIND
2018-02-21180222-025NIND
2019-10-28191029-027NIND
2019-10-28191029-031NIND
2019-10-28191029-032NIND
2019-10-28191029-038NIND
2020-02-25200226-044NIND
2020-02-25200226-045NIND
2020-02-25200226-046NIND
2020-02-25200226-050NIND
2021-03-10NI-210311-031ND
2021-03-10NI-210311-034ND
2021-03-10NI-210311-033ND
2021-03-10NI-210311-032ND
2022-02-08NI-220209-010ND
2022-02-08NI-220209-011ND
2022-02-08NI-220209-012ND
2022-02-08NI-220209-013ND
2023-02-21NI-230222-085ND
2023-02-21NI-230222-086ND
2023-02-21NI-230222-087ND
2023-02-21NI-230222-088ND