Know Your Environment. Protect Your Health.

Nitrate and nitrite

Pahrump Utility Company Inc.

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.217 ppm110.217 ppm
20190.377 ppm330.251 ppm - 0.502 ppm
20200.256 ppm110.256 ppm
20210.323 ppm110.323 ppm
20220.338 ppm330.323 ppm - 0.360 ppm
20230.207 ppm110.207 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
2018-08-2918081451-010.217 ppm
2019-06-1119060609-010.251 ppm
2019-06-1919061103-010.502 ppm
2019-06-1919061106-010.377 ppm
2020-06-1020060620-010.256 ppm
2021-04-0821040438-020.323 ppm
2022-09-2122090942-010.360 ppm
2022-09-2122090944-010.330 ppm
2022-09-2122090953-010.323 ppm
2023-06-2123061018-010.207 ppm