Know Your Environment. Protect Your Health.

Nitrate and nitrite

Bedford Consolidated Water District

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.157 ppm220.148 ppm - 0.166 ppm
20191.05 ppm220.164 ppm - 1.94 ppm
2020ND20ND
20210.167 ppm330.150 ppm - 0.200 ppm
20221.000 ppm21ND - 2.00 ppm
20231.06 ppm660.140 ppm - 3.82 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
2018-02-05AU02458NIT0.166 ppm
2018-03-01AU04289NIT0.148 ppm
2019-03-14AV05216NIT1.94 ppm
2019-03-14AV05217NIT0.164 ppm
2020-02-13AW03098NITND
2020-02-25CF37945NITND
2021-02-04AX02343-NIT0.200 ppm
2021-02-10CH60664-NIT0.150 ppm
2021-02-10CH60665-NIT0.150 ppm
2022-02-04CK30270-NITND
2022-02-04CK30269-NIT2.00 ppm
2023-01-11AZ00705-NIT3.82 ppm
2023-02-08CN38788-NIT0.160 ppm
2023-02-08CN38787-NIT0.140 ppm
2023-08-29AZ15966-NIT0.274 ppm
2023-08-29AZ15964-NIT1.71 ppm
2023-08-29AZ15968-NIT0.229 ppm