Know Your Environment. Protect Your Health.

Nitrate and nitrite

Waterworks 1 of Morehouse Inc.

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

 

23

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.750 ppm440.1000 ppm - 1.40 ppm
20190.559 ppm12120.0850 ppm - 1.40 ppm
20200.120 ppm110.120 ppm
20210.250 ppm220.1000 ppm - 0.400 ppm
20220.150 ppm220.1000 ppm - 0.200 ppm
20230.650 ppm220.200 ppm - 1.10 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

ppm = parts per million

All test results

Date Lab ID Result
2018-11-13354316330020.1000 ppm
2018-11-13354316330011.40 ppm
2018-11-13354316330011.40 ppm
2018-11-13354316330020.1000 ppm
2019-02-26354542520010.120 ppm
2019-02-26354542520021.40 ppm
2019-02-26354542520021.40 ppm
2019-02-26354542520010.120 ppm
2019-03-19354562400010.130 ppm
2019-03-19354562400010.130 ppm
2019-04-30354654610010.0850 ppm
2019-04-30354654610020.320 ppm
2019-04-30354654610010.0850 ppm
2019-04-30354654610020.320 ppm
2019-05-07354672140011.30 ppm
2019-05-07354672140011.30 ppm
2020-10-12355881040010.120 ppm
2021-12-14B2106660-0010.1000 ppm
2021-12-14B2106660-0020.400 ppm
2022-04-27B2202003-0050.1000 ppm
2022-04-27B2202003-0060.200 ppm
2023-03-16B2301467-0010.200 ppm
2023-03-16B2301467-0021.10 ppm