Know Your Environment. Protect Your Health.

Nitrate and nitrite

Sugar Mountain Utility

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
20230.732 ppm1914ND - 1.80 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
2023-08-30752-11119-10.770 ppm
2023-10-17752-12696-11.30 ppm
2023-10-17752-12696-91.80 ppm
2023-10-17752-12696-80.980 ppm
2023-10-17752-12696-70.920 ppm
2023-10-17752-12696-61.10 ppm
2023-10-17752-12696-50.680 ppm
2023-10-17752-12696-4ND
2023-10-17752-12696-3ND
2023-10-17752-12696-21.000 ppm
2023-10-17752-12696-18ND
2023-10-17752-12696-171.40 ppm
2023-10-17752-12696-160.940 ppm
2023-10-17752-12696-15ND
2023-10-17752-12696-130.510 ppm
2023-10-17752-12696-120.940 ppm
2023-10-17752-12696-11ND
2023-10-17752-12696-100.780 ppm
2023-12-13752-14695-10.780 ppm