Know Your Environment. Protect Your Health.

Nitrate and nitrite

Meadows Ranch

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
20200.843 ppm330.789 ppm - 0.886 ppm
2021N/A00N/A
20220.856 ppm330.623 ppm - 1.25 ppm
20230.193 ppm32ND - 0.290 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 Result
2020-04-080.886 ppm
2020-04-080.853 ppm
2020-04-080.789 ppm
2022-04-180.695 ppm
2022-04-191.25 ppm
2022-04-190.623 ppm
2023-08-040.290 ppm
2023-08-040.290 ppm
2023-12-08ND