Know Your Environment. Protect Your Health.

Nitrate

City of Cushing

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)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0313 ppm220.0283 ppm - 0.0342 ppm
20190.0378 ppm220.0330 ppm - 0.0426 ppm
20200.0401 ppm220.0296 ppm - 0.0506 ppm
20210.0766 ppm220.0432 ppm - 0.110 ppm
20220.0456 ppm220.0380 ppm - 0.0531 ppm
20230.0247 ppm220.0139 ppm - 0.0354 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
2018-04-17Q18156310070.0283 ppm
2018-04-17Q18156310080.0342 ppm
2019-01-17Q19026790030.0426 ppm
2019-04-24Q19165030030.0330 ppm
2020-02-05Q20049570050.0296 ppm
2020-02-05Q20049570060.0506 ppm
2021-10-12Q21282760070.110 ppm
2021-10-12Q21282760080.0432 ppm
2022-01-06Q22004090030.0531 ppm
2022-01-06Q22004090040.0380 ppm
2023-07-12Q23273620090.0139 ppm
2023-07-12Q23273620100.0354 ppm