Know Your Environment. Protect Your Health.

Nitrate

Harbour Point S/d

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.

 

54

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.102 ppm101ND - 1.02 ppm
20190.296 ppm102ND - 1.72 ppm
20200.146 ppm91ND - 1.31 ppm
20210.138 ppm91ND - 1.24 ppm
20220.137 ppm91ND - 1.23 ppm
20230.617 ppm74ND - 1.90 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
2018-05-227126-052218-V10NND
2018-05-227126-052218-V03NND
2018-10-097126-100918-V01NND
2018-10-097126-100918-V02NND
2018-10-097126-100918-V04NND
2018-10-097126-100918-V05N1.02 ppm
2018-10-097126-100918-V06NND
2018-10-097126-100918-V07NND
2018-10-097126-100918-V08NND
2018-10-097126-100918-V09NND
2019-04-167126-041619-V03NND
2019-04-167126-041619-V10NND
2019-10-087126-100819-V01NND
2019-10-087126-100819-V09NND
2019-10-087126-100819-V08NND
2019-10-087126-100819-V07NND
2019-10-087126-100819-V06NND
2019-10-087126-100819-V05N1.24 ppm
2019-10-087126-100819-V04NND
2019-10-087126-100819-V02N1.72 ppm
2020-04-157126-041520-V03NND
2020-04-157126-041520-V10NND
2020-10-277126-102720-V09NND
2020-10-277126-102720-V08NND
2020-10-277126-102720-V07NND
2020-10-277126-102720-V05N1.31 ppm
2020-10-277126-102720-V04NND
2020-10-277126-102720-V01NND
2020-10-277126-102720-V06NND
2021-04-287126-042821-V03NND
2021-04-287126-042821-V10NND
2021-10-137126-101321-V04NND
2021-10-137126-101321-V05N1.24 ppm
2021-10-137126-101321-V06NND
2021-10-137126-101321-V07NND
2021-10-137126-101321-V08NND
2021-10-137126-101321-V09NND
2021-10-267126-102621-V01NND
2022-06-287126-062822-V10NND
2022-06-287126-062822-V03NND
2022-10-127126-101222-V01NND
2022-10-127126-101222-V04NND
2022-10-127126-101222-V05N1.23 ppm
2022-10-127126-101222-V06NND
2022-10-127126-101222-V07NND
2022-10-127126-101222-V08NND
2022-10-127126-101222-V09NND
2023-05-09752-6726-1ND
2023-05-10752-6771-11.90 ppm
2023-10-25752-13009-10.910 ppm
2023-10-25752-13009-2ND
2023-10-25752-13009-3ND
2023-10-25752-13009-40.690 ppm
2023-11-14752-13687-10.820 ppm