Know Your Environment. Protect Your Health.

Nitrate

Cassadaga Village

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.593 ppm32ND - 0.937 ppm
20190.647 ppm32ND - 0.984 ppm
20200.800 ppm32ND - 1.30 ppm
20210.867 ppm32ND - 1.40 ppm
2022ND30ND
2023N/A00N/A

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
2018-03-21NO3 WELL 5 2018ND
2018-03-21NO3 WELL 1 20180.842 ppm
2018-03-21NO3 WELL 4 20180.937 ppm
2019-03-20NO3 19 WL1 CASSADAGA0.958 ppm
2019-03-20NO3 19 WL5 CASSADAGAND
2019-03-20NO3 19 WL4 CASSADAGA0.984 ppm
2020-08-19NO3 20 WL1 CASSADAGA1.10 ppm
2020-08-19NO3 20 WL4 CASSADAGA1.30 ppm
2020-08-19NO3 20 WL5 CASSADAGAND
2021-03-31NO3 21 WL1 CASSADAGA1.20 ppm
2021-03-31NO3 21 WL4 CASSADAGA1.40 ppm
2021-03-31NO3 21 WL5 CASSADAGAND
2022-03-16NO3 22 WL5 CASSADAGAND
2022-03-16NO3 22 WL1 CASSADAGAND
2022-03-16NO3 22 WL4 CASSADAGAND