Know Your Environment. Protect Your Health.

Nitrate and nitrite

Luthersville

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.550 ppm21ND - 1.10 ppm
20192.40 ppm222.40 ppm
20201.000 ppm221.000 ppm
20211.80 ppm221.80 ppm
20220.945 ppm220.930 ppm - 0.960 ppm
20230.915 ppm220.910 ppm - 0.920 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
2018-09-04AJ998111.10 ppm
2018-09-04AJ99812ND
2019-07-23AK232272.40 ppm
2019-07-23AK232302.40 ppm
2020-08-10AK546931.000 ppm
2020-08-10AK546941.000 ppm
2021-06-28AK784491.80 ppm
2021-06-28AK784511.80 ppm
2022-12-11AL223180.930 ppm
2022-12-11AL223210.960 ppm
2023-09-12AL436430.910 ppm
2023-09-12AL436440.920 ppm