Know Your Environment. Protect Your Health.

Nitrate

Saco River Apartments

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.

 

64

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
20190.814 ppm1310ND - 1.16 ppm
20200.372 ppm124ND - 1.34 ppm
20210.0833 ppm121ND - 1.000 ppm
20220.370 ppm135ND - 1.12 ppm
20230.396 ppm128ND - 1.02 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
2018-12-27301813683ND
2018-12-27301813682ND
2019-01-15301900330ND
2019-02-251902-01927-0030.540 ppm
2019-03-25SRA03252019-21.09 ppm
2019-04-04SRA040420191.15 ppm
2019-04-23SRA04232019-21.13 ppm
2019-05-02SRA05022019-11.06 ppm
2019-06-03SRA06032019-11.05 ppm
2019-07-11SRA07112019-1ND
2019-08-21SRA08212019-1ND
2019-09-12SRA09122019-21.16 ppm
2019-10-02SRA10022019-21.12 ppm
2019-11-12SRA11132019-11.12 ppm
2019-12-11SRA12112019-21.16 ppm
2020-01-06SRA01062020-21.08 ppm
2020-02-05SRA02052020-21.02 ppm
2020-03-04SRA03042020-2ND
2020-04-02SRA04022020-21.02 ppm
2020-05-13SRA05132020-2ND
2020-06-08SRA06082020-2ND
2020-07-07SRA07072020-2ND
2020-08-05SRA08052020-21.34 ppm
2020-09-02SRA09022020-2ND
2020-10-08SRA10082020-2ND
2020-11-05SRA11052020-2ND
2020-12-21SRA12212020-2ND
2021-01-07SRA01072021-2ND
2021-02-01SRA02012021-2ND
2021-03-01SRA03012021-2ND
2021-04-05SRA04052021-2ND
2021-05-04SRA05042021-21.000 ppm
2021-06-01SRA06012021-2ND
2021-07-07SRA07072021-2ND
2021-08-03SRA08032021-2ND
2021-09-08SRA09082021-2ND
2021-10-05SRA10052021-2ND
2021-11-01SRA11012021-2ND
2021-12-01SRA12012021-2ND
2022-01-03SRA01032022-21.02 ppm
2022-02-07SRA02072022-2ND
2022-03-01SRA03012022-2ND
2022-04-07SRA04072022-2ND
2022-05-02SRA05022022-2ND
2022-06-15SRA06152022-2ND
2022-07-062207-00750-0020.430 ppm
2022-07-06SRA07062022-2ND
2022-08-16SRA08162022-2ND
2022-09-07SRA09072022-2ND
2022-10-11SRA10112022-21.12 ppm
2022-11-01SRA11012022-21.12 ppm
2022-12-01SRA12012022-21.12 ppm
2023-01-10SRA01102023-21.01 ppm
2023-02-06SRA02062023-2ND
2023-03-02SRA03022023-2ND
2023-04-11SRA04112023-2ND
2023-05-022305-00365-0020.420 ppm
2023-06-01SRA06012023-21.02 ppm
2023-07-102307-01252-0020.820 ppm
2023-08-012308-00267-0020.400 ppm
2023-09-082309-01548-0020.330 ppm
2023-10-04SRA10042023-2ND
2023-11-022311-00531-0020.380 ppm
2023-12-072312-01154-0020.370 ppm