Know Your Environment. Protect Your Health.

Nitrate

Childersburg Water & Sewer Board

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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

26

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.528 ppm54ND - 0.970 ppm
20190.658 ppm54ND - 1.22 ppm
20201.40 ppm550.400 ppm - 2.65 ppm
20210.770 ppm550.1000 ppm - 1.35 ppm
20220.732 ppm65ND - 1.12 ppm
20230.766 ppm550.140 ppm - 1.24 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
2018-02-271802-00459-20.970 ppm
2018-02-271802-00459-4ND
2018-02-271802-00459-50.740 ppm
2018-02-271802-00459-60.480 ppm
2018-02-271802-00459-10.450 ppm
2019-03-191903-00325-0070.500 ppm
2019-03-191903-00325-0061.22 ppm
2019-03-191903-00325-004ND
2019-03-191903-00325-0021.04 ppm
2019-03-191903-00325-0010.530 ppm
2020-03-172003-00303-0011.17 ppm
2020-03-172003-00303-0022.14 ppm
2020-03-172003-00303-0040.400 ppm
2020-03-172003-00303-0062.65 ppm
2020-03-172003-00303-0070.660 ppm
2021-02-232102-00375-0010.530 ppm
2021-02-232102-00375-0080.710 ppm
2021-02-232102-00375-0061.16 ppm
2021-02-232102-00375-0050.1000 ppm
2021-02-232102-00375-0031.35 ppm
2022-03-012203-00025-0010.520 ppm
2022-03-012203-00025-0021.12 ppm
2022-03-012203-00025-002A1.12 ppm
2022-03-012203-00025-004ND
2022-03-012203-00025-0051.000 ppm
2022-03-012203-00025-0060.630 ppm
2023-01-242301-00427-0010.580 ppm
2023-01-242301-00427-0021.19 ppm
2023-01-242301-00427-0030.140 ppm
2023-01-242301-00427-0041.24 ppm
2023-01-242301-00427-0050.680 ppm