Know Your Environment. Protect Your Health.

Nitrate

Hillsdale Housing Cooperative Inc.

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

 

12

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.215 ppm21ND - 0.430 ppm
20190.138 ppm220.0650 ppm - 0.210 ppm
20200.202 ppm21ND - 0.403 ppm
20210.0830 ppm21ND - 0.166 ppm
20220.392 ppm220.0265 ppm - 0.758 ppm
20230.0401 ppm21ND - 0.0802 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

The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppm = parts per million

All test results

Date Lab ID Result
2018-02-211802-03789-001IND
2018-02-211802-03789-002I0.430 ppm
2019-03-291903-05609-001N0.0650 ppm
2019-03-291903-05609-002N0.210 ppm
2020-03-1920C0657-01ND
2020-03-1920C0657-020.403 ppm
2021-03-1621C0582-01ND
2021-03-1621C0582-020.166 ppm
2022-02-1522B0498-010.0265 ppm
2022-02-1522B0498-020.758 ppm
2023-02-2223B0773-01ND
2023-02-2223B0773-020.0802 ppm