Know Your Environment. Protect Your Health.

Nitrate

Myoma Dunes 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.

 

42

Samples

0

Samples exceeding legal limit (MCL)

40

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.603 ppm330.530 ppm - 0.740 ppm
20190.695 ppm87ND - 1.000 ppm
20200.594 ppm54ND - 1.000 ppm
20210.684 ppm550.530 ppm - 0.880 ppm
20220.779 ppm16160.560 ppm - 1.000 ppm
20230.782 ppm550.570 ppm - 1.10 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
2018-11-19CA3310051_008_008-2018111910330.540 ppm
2018-11-19CA3310051_007_007-2018111910110.740 ppm
2018-12-17CA3310051_011_011-2018121709350.530 ppm
2019-04-01CA3310051_010_010-2019040107300.860 ppm
2019-11-18CA3310051_011_011-201911180823ND
2019-11-18CA3310051_007_007-2019111808500.560 ppm
2019-11-18CA3310051_008_008-2019111807510.650 ppm
2019-11-18CA3310051_011_011-2019111809510.690 ppm
2019-11-22CA3310051_010_010-2019112209391.000 ppm
2019-11-22CA3310051_010_010-2019112209121.000 ppm
2019-11-22CA3310051_009_009-2019112208390.800 ppm
2020-08-24CA3310051_011_011-2020082412350.760 ppm
2020-08-24CA3310051_008_008-2020082411450.610 ppm
2020-08-24CA3310051_007_007-202008241135ND
2020-08-24CA3310051_010_010-2020082413201.000 ppm
2020-08-24CA3310051_009_009-2020082411000.600 ppm
2021-08-23CA3310051_009_009-2021082307220.650 ppm
2021-08-23CA3310051_007_007-2021082308550.650 ppm
2021-08-23CA3310051_008_008-2021082308300.530 ppm
2021-08-23CA3310051_010_010-2021082306300.880 ppm
2021-08-23CA3310051_011_011-2021082307130.710 ppm
2022-08-16CA3310051_009_009-2022081607560.700 ppm
2022-08-16CA3310051_011_011-2022081606540.850 ppm
2022-08-16CA3310051_008_008-2022081608270.560 ppm
2022-08-16CA3310051_007_007-2022081608550.690 ppm
2022-08-16CA3310051_010_010-2022081607211.000 ppm
2022-08-19CA3310051_008_008-2022081909350.610 ppm
2022-08-19CA3310051_010_010-2022081907491.000 ppm
2022-08-19CA3310051_011_011-2022081907520.850 ppm
2022-08-19CA3310051_010_010-2022081907151.000 ppm
2022-08-19CA3310051_009_009-2022081909190.720 ppm
2022-08-19CA3310051_007_007-2022081909030.750 ppm
2022-08-23CA3310051_008_008-2022082307500.620 ppm
2022-08-23CA3310051_007_007-2022082308240.760 ppm
2022-08-23CA3310051_011_011-2022082307050.770 ppm
2022-08-23CA3310051_010_010-2022082308421.000 ppm
2022-08-23CA3310051_009_009-2022082308050.590 ppm
2023-08-22CA3310051_009_009-2023082208000.570 ppm
2023-08-22CA3310051_011_011-2023082210120.880 ppm
2023-08-22CA3310051_007_007-2023082207410.750 ppm
2023-08-22CA3310051_008_008-2023082207270.610 ppm
2023-08-22CA3310051_010_010-2023082208561.10 ppm