Know Your Environment. Protect Your Health.

Nitrate

Lakehaven Utility District

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.

 

94

Samples

0

Samples exceeding legal limit (MCL)

51

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.440 ppm2210ND - 2.20 ppm
20190.571 ppm2211ND - 2.47 ppm
2020N/A00N/A
20210.522 ppm1910ND - 2.43 ppm
20220.767 ppm1510ND - 2.51 ppm
20230.678 ppm1610ND - 2.69 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
2018-01-110.520 ppm
2018-01-170.850 ppm
2018-02-270.630 ppm
2018-05-08ND
2018-05-08ND
2018-05-081.40 ppm
2018-05-082.20 ppm
2018-05-150.550 ppm
2018-06-12ND
2018-06-12ND
2018-06-19ND
2018-06-19ND
2018-07-100.580 ppm
2018-07-100.580 ppm
2018-07-17ND
2018-07-17ND
2018-07-17ND
2018-08-080.280 ppm
2018-08-29ND
2018-08-31ND
2018-08-31ND
2018-10-022.09 ppm
2019-01-020.630 ppm
2019-02-071.59 ppm
2019-02-070.930 ppm
2019-02-072.20 ppm
2019-02-072.47 ppm
2019-05-28ND
2019-06-05ND
2019-06-05ND
2019-06-110.830 ppm
2019-06-11ND
2019-06-110.830 ppm
2019-06-12ND
2019-07-09ND
2019-07-09ND
2019-07-09ND
2019-07-23ND
2019-07-311.20 ppm
2019-09-030.950 ppm
2019-09-030.250 ppm
2019-09-04ND
2019-10-29ND
2019-10-300.680 ppm
2021-02-1640746391.04 ppm
2021-02-2340801420.620 ppm
2021-03-1640873650.780 ppm
2021-05-044109164ND
2021-05-254122636ND
2021-05-254122636ND
2021-05-254122636ND
2021-06-224131856ND
2021-07-1341496450.220 ppm
2021-07-1341496450.220 ppm
2021-07-1341459070.880 ppm
2021-07-1341459070.880 ppm
2021-08-034147955ND
2021-08-034147954ND
2021-09-1441807820.950 ppm
2021-09-1541768242.43 ppm
2021-09-294191657ND
2021-09-294191657ND
2021-12-1342152611.90 ppm
2022-01-0442259991.74 ppm
2022-01-2542480970.430 ppm
2022-01-2542339031.26 ppm
2022-05-174291255ND
2022-05-1742912561.32 ppm
2022-06-2444985662.51 ppm
2022-07-124333089ND
2022-07-124333089ND
2022-07-124333089ND
2022-07-1243330550.890 ppm
2022-07-1243330550.890 ppm
2022-08-0343385630.220 ppm
2022-08-0343385630.220 ppm
2022-08-0343315302.03 ppm
2022-08-304357020ND
2023-01-1744023400.690 ppm
2023-02-1544140871.22 ppm
2023-06-2744781590.260 ppm
2023-06-274478157ND
2023-06-274478158ND
2023-06-274478158ND
2023-06-2744781590.260 ppm
2023-06-274478158ND
2023-07-1144913431.02 ppm
2023-07-1144913431.02 ppm
2023-07-2544977370.960 ppm
2023-07-2544973330.770 ppm
2023-08-3145139782.69 ppm
2023-09-124524105ND
2023-09-194529308ND
2023-10-1045380911.95 ppm