Know Your Environment. Protect Your Health.

Nitrate

Heritage Ranch Community Services District

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND30ND
2021ND30ND
2022ND40ND
2023ND40ND

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
2018-05-10CA4010012_001_001-201805101300ND
2018-05-10CA4010012_002_002-201805101306ND
2018-11-01CA4010012_001_001-201811011307ND
2018-11-01CA4010012_002_002-201811011318ND
2019-05-09CA4010012_001_001-201905091217ND
2019-05-09CA4010012_002_002-201905091240ND
2019-11-04CA4010012_002_002-201911041315ND
2019-11-04CA4010012_001_001-201911041310ND
2020-05-07CA4010012_001_001-202005071035ND
2020-05-07CA4010012_002_002-202005071053ND
2020-11-19CA4010012_001_001-202011191330ND
2021-06-10CA4010012_001_001-202106101322ND
2021-11-18CA4010012_001_001-202111181020ND
2021-11-18CA4010012_002_002-202111181030ND
2022-05-12CA4010012_002_002-202205120953ND
2022-05-12CA4010012_001_001-202205120944ND
2022-11-03CA4010012_001_001-202211031053ND
2022-11-03CA4010012_002_002-202211031059ND
2023-05-18CA4010012_002_002-202305180948ND
2023-05-18CA4010012_001_001-202305180931ND
2023-11-09CA4010012_001_001-202311091019ND
2023-11-09CA4010012_002_002-202311091028ND