Know Your Environment. Protect Your Health.

Nitrate

Pine Valley Mutual Water Company

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.

 

77

Samples

14

Samples exceeding legal limit (MCL)

44

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.70 ppm85ND - 19.0 ppm
20195.00 ppm86ND - 27.0 ppm
20203.90 ppm1413ND - 21.0 ppm
20215.14 ppm1815ND - 23.2 ppm
20225.61 ppm148ND - 21.4 ppm
20237.97 ppm1510ND - 24.0 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
2018-07-02CA3710039_005_005-20180702085019.0 ppm
2018-10-15CA3710039_007_007-201810151015ND
2018-10-15CA3710039_009_009-2018101510250.310 ppm
2018-10-15CA3710039_010_010-2018101509252.10 ppm
2018-10-15CA3710039_001_001-2018101509406.30 ppm
2018-10-15CA3710039_004_004-2018101509451.90 ppm
2018-10-15CA3710039_006_006-201810150930ND
2018-10-15CA3710039_003_003-201810151055ND
2019-10-14CA3710039_004_004-2019101408453.82 ppm
2019-10-14CA3710039_001_001-2019101409455.90 ppm
2019-10-14CA3710039_005_005-20191014091527.0 ppm
2019-10-14CA3710039_006_006-2019101408300.810 ppm
2019-10-14CA3710039_010_010-2019101409302.42 ppm
2019-10-14CA3710039_009_009-201910140940ND
2019-10-14CA3710039_003_003-201910140910ND
2019-10-14CA3710039_007_007-2019101409000.0700 ppm
2020-02-13CA3710039_005_005-20200213100019.4 ppm
2020-06-08CA3710039_007_007-202006080930ND
2020-06-08CA3710039_001_001-2020060809004.38 ppm
2020-06-08CA3710039_010_010-2020060810452.28 ppm
2020-06-08CA3710039_004_004-2020060809156.82 ppm
2020-06-08CA3710039_009_009-2020060809500.0600 ppm
2020-07-06CA3710039_007_007-2020070610550.0200 ppm
2020-08-03CA3710039_007_007-2020080310500.0200 ppm
2020-09-08CA3710039_007_007-2020090811300.0300 ppm
2020-10-05CA3710039_003_003-2020100511500.0200 ppm
2020-10-05CA3710039_006_006-2020100511050.500 ppm
2020-10-08CA3710039_007_007-2020100809000.0400 ppm
2020-11-16CA3710039_005_005-20201116100521.0 ppm
2020-12-14CA3710039_009_009-2020121409200.0700 ppm
2021-02-11CA3710039_007_007-2021021111000.01000 ppm
2021-02-11CA3710039_005_005-20210211111019.9 ppm
2021-04-05CA3710039_004_004-2021040512156.71 ppm
2021-06-07CA3710039_007_007-2021060710350.0300 ppm
2021-06-07CA3710039_010_010-2021060710102.36 ppm
2021-06-07CA3710039_004_004-2021060710254.87 ppm
2021-06-07CA3710039_001_001-2021060710003.32 ppm
2021-06-07CA3710039_005_005-20210607105023.2 ppm
2021-07-19CA3710039_007_007-2021071908500.220 ppm
2021-08-09CA3710039_007_007-2021080911050.0700 ppm
2021-08-09CA3710039_004_004-2021080911153.73 ppm
2021-10-11CA3710039_003_003-202110111240ND
2021-10-11CA3710039_006_006-2021101113150.370 ppm
2021-10-12CA3710039_005_005-20211012100522.4 ppm
2021-11-23CA3710039_003_003-202111230610ND
2021-11-23CA3710039_009_009-2021112306300.0900 ppm
2021-11-23CA3710039_006_006-202111230625ND
2021-11-23CA3710039_004_004-2021112306205.29 ppm
2022-01-04CA3710039_005_005-20220104092020.0 ppm
2022-03-13CA3710039_016_016-2022031317000.130 ppm
2022-03-13CA3710039_004_004-2022031316404.90 ppm
2022-03-13CA3710039_005_005-20220313165016.1 ppm
2022-06-06CA3710039_010_010-2022060609002.74 ppm
2022-06-06CA3710039_007_007-202206060850ND
2022-06-06CA3710039_005_005-20220606083021.4 ppm
2022-06-06CA3710039_004_004-2022060608205.49 ppm
2022-07-05CA3710039_007_007-202207051325ND
2022-10-27CA3710039_001_001-2022102708007.80 ppm
2022-11-07CA3710039_007_007-202211071530ND
2022-11-07CA3710039_003_003-202211071500ND
2022-11-07CA3710039_006_006-202211071520ND
2022-11-07CA3710039_009_009-202211071540ND
2023-02-27CA3710039_005_005-20230227083022.0 ppm
2023-02-27CA3710039_004_004-2023022708209.00 ppm
2023-05-08CA3710039_005_005-20230508083018.0 ppm
2023-06-19CA3710039_010_010-2023061908304.60 ppm
2023-06-19CA3710039_004_004-2023061908008.30 ppm
2023-08-09CA3710039_005_005-20230809083020.0 ppm
2023-08-09CA3710039_007_007-202308090850ND
2023-09-06CA3710039_007_007-202309060840ND
2023-10-02CA3710039_007_007-202310020850ND
2023-10-02CA3710039_001_001-2023100208057.00 ppm
2023-10-02CA3710039_004_004-2023100208306.10 ppm
2023-11-01CA3710039_005_005-20231101084024.0 ppm
2023-11-01CA3710039_009_009-2023110109000.490 ppm
2023-11-02CA3710039_003_003-202311021010ND
2023-11-02CA3710039_006_006-202311020920ND