Know Your Environment. Protect Your Health.

Nitrate

Mountain View Correctional Facility

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

22

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.397 ppm330.220 ppm - 0.620 ppm
20190.440 ppm440.1000 ppm - 0.870 ppm
20200.473 ppm330.0800 ppm - 0.920 ppm
20210.680 ppm660.410 ppm - 1.09 ppm
20220.738 ppm440.600 ppm - 0.810 ppm
20230.665 ppm440.260 ppm - 0.820 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
2018-03-141803799-010.220 ppm
2018-03-141803798-010.350 ppm
2018-10-161820858-010.620 ppm
2019-05-071907489-010.870 ppm
2019-05-071903911-010.500 ppm
2019-05-071903912-010.1000 ppm
2019-06-171910265-010.290 ppm
2020-04-082004114-010.420 ppm
2020-09-242017452-010.0800 ppm
2020-12-152017569-010.920 ppm
2021-01-132022766-010.860 ppm
2021-02-09SO0772-10.410 ppm
2021-02-222102-02384-0011.09 ppm
2021-03-162102691-010.560 ppm
2021-10-182116857-010.410 ppm
2021-12-142120562-010.750 ppm
2022-02-102122429-010.810 ppm
2022-05-172204780-010.790 ppm
2022-07-262211405-010.750 ppm
2022-10-142216868-010.600 ppm
2023-03-072221149-010.260 ppm
2023-05-102305644-010.820 ppm
2023-08-162312811-010.810 ppm
2023-11-282319120-010.770 ppm