Know Your Environment. Protect Your Health.

Nitrate and nitrite

Ridgewood Mobile Home Park

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0750 ppm21ND - 0.150 ppm
2019N/A00N/A
20202.67 ppm21ND - 5.33 ppm
20211.87 ppm221.23 ppm - 2.51 ppm
20220.975 ppm41ND - 3.90 ppm
20230.450 ppm41ND - 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
2018-12-272626-18ND
2018-12-272627-180.150 ppm
2020-12-173472-20ND
2020-12-223485-205.33 ppm
2021-12-285212-212.51 ppm
2021-12-295211-211.23 ppm
2022-03-21795-22ND
2022-06-301666-22ND
2022-12-204604-223.90 ppm
2022-12-204608-22ND
2023-03-29892-231.80 ppm
2023-06-301984-23ND
2023-12-194711-23ND
2023-12-194716-23ND