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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.657 ppm	3	2	ND - 1.07 ppm
2015	ND	2	0	ND
2016	0.562 ppm	2	2	0.264 ppm - 0.860 ppm
2017	0.608 ppm	3	2	ND - 0.976 ppm
2018	0.593 ppm	3	2	ND - 0.937 ppm
2019	0.647 ppm	3	2	ND - 0.984 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.

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
2014-05-15	NO3 2014 WELL #1	1.07 ppm
2014-05-15	NO3 2014 WELL #4	0.900 ppm
2014-05-15	NO3 WELL #5 2014	ND
2015-07-30	2015NO3 CASSADAG	ND
2015-07-30	2015NO3 CASSADAG	ND
2016-06-22	NO3 WELL #1 2016	0.860 ppm
2016-06-22	NO3 WELL #4 2016	0.264 ppm
2017-02-08	NO3 WELL #5 2017	ND
2017-02-08	NO3 WELL #1 2017	0.848 ppm
2017-02-08	NO3 WELL #4 2017	0.976 ppm
2018-03-21	NO3 WELL 5 2018	ND
2018-03-21	NO3 WELL 1 2018	0.842 ppm
2018-03-21	NO3 WELL 4 2018	0.937 ppm
2019-03-20	NO3 19 WL1 CASSA	0.958 ppm
2019-03-20	NO3 19 WL5 CASSA	ND
2019-03-20	NO3 19 WL4 CASSA	0.984 ppm