Know Your Environment. Protect Your Health.

Nitrate

City of Pilot Point

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.

 

41

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0854 ppm660.0176 ppm - 0.299 ppm
20190.0488 ppm770.0307 ppm - 0.0615 ppm
20200.0464 ppm770.0337 ppm - 0.0555 ppm
20210.0542 ppm770.0321 ppm - 0.0802 ppm
20220.0597 ppm770.0337 ppm - 0.126 ppm
20230.0461 ppm770.0244 ppm - 0.0648 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
2018-03-15Q18108380190.0580 ppm
2018-03-15Q18108380200.0527 ppm
2018-03-15Q18108380210.0525 ppm
2018-03-15Q18108380220.0325 ppm
2018-03-15Q18108380230.299 ppm
2018-03-15Q18108380180.0176 ppm
2019-04-02Q19131620040.0307 ppm
2019-04-02Q19131620050.0344 ppm
2019-04-02Q19131620120.0615 ppm
2019-04-02Q19131620190.0588 ppm
2019-04-02Q19131620230.0546 ppm
2019-05-30Q19302360140.0498 ppm
2019-05-30Q19302360050.0521 ppm
2020-01-16Q20017320240.0337 ppm
2020-01-16Q20017320250.0449 ppm
2020-01-16Q20017320260.0508 ppm
2020-01-16Q20017320440.0433 ppm
2020-01-16Q20017320450.0421 ppm
2020-05-11Q20182130070.0555 ppm
2020-05-11Q20182130120.0545 ppm
2021-11-09Q21313430080.0427 ppm
2021-11-09Q21313430140.0557 ppm
2021-11-09Q21313430130.0802 ppm
2021-11-09Q21313430120.0466 ppm
2021-11-09Q21313430100.0321 ppm
2021-11-09Q21313430090.0535 ppm
2021-11-09Q21313430110.0687 ppm
2022-06-21Q22171640020.126 ppm
2022-06-21Q22171640130.0624 ppm
2022-10-13Q22310680200.0493 ppm
2022-10-13Q22310680210.0662 ppm
2022-10-13Q22310680190.0337 ppm
2022-10-13Q22310680180.0341 ppm
2022-10-13Q22310680010.0462 ppm
2023-08-16Q23343210030.0436 ppm
2023-08-16Q23343210130.0648 ppm
2023-08-16Q23343210220.0303 ppm
2023-11-06Q23474780150.0244 ppm
2023-11-06Q23474780160.0626 ppm
2023-11-06Q23474780260.0465 ppm
2023-11-06Q23478030020.0505 ppm