Know Your Environment. Protect Your Health.

Nitrite

Kennett Square Municipal Water Works

NOTE: Kennett Square Municipal Water Works purchases water from Chester Water Authority which is required to test for nitrite. Sample information shown below was taken by Chester Water Authority.

Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND80ND
2020ND100ND
2021ND80ND
2022ND60ND
2023ND40ND

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 1 ppm

The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.

ppm = parts per million

All test results

NOTE: Kennett Square Municipal Water Works purchases water from Chester Water Authority which is required to test for nitrite. Sample information shown below was taken by Chester Water Authority.

Date Lab ID Result
2018-01-102287659001ND
2018-04-112308408001ND
2018-07-112325703001ND
2018-10-112343961001ND
2019-01-093009893001ND
2019-04-013025251001ND
2019-07-103044791001ND
2019-10-023061362001ND
2020-02-0321499846.00ND
2020-05-0122019638.00ND
2020-07-0122603934.00ND
2020-10-0923179161.00ND
2021-02-1023885366.00ND
2021-04-2124244668.00ND
2021-07-2824825595.00ND
2021-10-1325401540.00ND
2022-02-0926114629.00ND
2022-04-2926461034.00ND
2022-08-1027230378.00ND
2022-11-1227819496.00ND
2023-02-0228346352.00ND
2023-05-1028896911.00ND
2023-05-1028896744.00ND
2023-07-1929299064.00ND
2023-07-2629299063.00ND
2023-11-0830068142.00ND