Know Your Environment. Protect Your Health.

Nitrate

Sunrise Water Authority

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.541 ppm63ND - 1.61 ppm
20190.653 ppm65ND - 2.04 ppm
20200.812 ppm550.0400 ppm - 2.08 ppm
20210.933 ppm440.0800 ppm - 1.95 ppm
20221.05 ppm440.0900 ppm - 2.10 ppm
20230.995 ppm440.143 ppm - 1.95 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
2018-09-17826105102-I1.61 ppm
2018-09-17826105103-I1.06 ppm
2018-09-17826105101-I0.577 ppm
2018-09-25826901202-IND
2018-09-25826901201-IND
2018-09-25826901203-IND
2019-04-221928400-IND
2019-10-091975601-I0.0900 ppm
2019-10-091975606-I0.0800 ppm
2019-10-091975615-I0.530 ppm
2019-10-091975616-I2.04 ppm
2019-10-091975619-I1.18 ppm
2020-08-2420554750.670 ppm
2020-08-2420554771.20 ppm
2020-08-2420554802.08 ppm
2020-08-2520560180.0700 ppm
2020-08-2520560150.0400 ppm
2021-10-262178882-I1.13 ppm
2021-10-262178883-I1.95 ppm
2021-10-262178884-I0.0800 ppm
2021-10-262178881-I0.570 ppm
2022-11-0322-71486-I0.0900 ppm
2022-11-0322-71485-I1.20 ppm
2022-11-0322-71483-I0.790 ppm
2022-11-0322-71484-I2.10 ppm
2023-07-313212011-01-I1.95 ppm
2023-07-313212011-02-I1.12 ppm
2023-08-023214027-01-I0.143 ppm
2023-08-023214027-02-I0.765 ppm