Know Your Environment. Protect Your Health.

Nitrate

City of Haslet

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

23

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.385 ppm330.381 ppm - 0.389 ppm
20190.551 ppm330.533 ppm - 0.574 ppm
20200.374 ppm220.370 ppm - 0.378 ppm
20210.219 ppm660.155 ppm - 0.314 ppm
20220.244 ppm660.114 ppm - 0.412 ppm
20230.410 ppm660.273 ppm - 0.606 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
2018-03-28Q18128450050.385 ppm
2018-03-28Q18128450060.389 ppm
2018-03-28Q18128450020.381 ppm
2019-09-25Q19687570040.574 ppm
2019-09-25Q19687570050.545 ppm
2019-09-25Q19687570060.533 ppm
2020-08-17Q20327000040.378 ppm
2020-08-17Q20327000050.370 ppm
2021-03-01Q21051350010.156 ppm
2021-04-27Q21106620010.187 ppm
2021-04-27Q21106620020.155 ppm
2021-04-27Q21106620030.193 ppm
2021-08-05Q21207140020.307 ppm
2021-12-08Q21343590010.314 ppm
2022-03-07Q22076280010.122 ppm
2022-03-07Q22076280020.114 ppm
2022-03-07Q22076280030.117 ppm
2022-06-09Q22162250010.325 ppm
2022-09-21Q22282470010.412 ppm
2022-12-13Q22373110010.376 ppm
2023-03-09Q23094050010.606 ppm
2023-03-09Q23094050020.273 ppm
2023-03-09Q23094050030.422 ppm
2023-05-17Q23186230010.302 ppm
2023-09-20Q23408600010.463 ppm
2023-12-13Q23534110010.396 ppm