Know Your Environment. Protect Your Health.

Nitrite

Horsham Water&sewer 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.

 

62

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND130ND
2020ND160ND
2021ND100ND
2022ND90ND
2023ND60ND

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

Date Lab ID Result
2018-02-28AF77336ND
2018-02-28AF77331ND
2018-02-28AF77334ND
2018-02-28AF77333ND
2018-02-28AF77335ND
2018-06-22AF86999ND
2018-08-30AF94269ND
2018-12-27AG04620ND
2019-02-11AG07771ND
2019-02-11AG07772ND
2019-02-11AG07773ND
2019-02-11AG07775ND
2019-03-06AG10054ND
2019-03-06AG10054ND
2019-05-09AG16016ND
2019-05-09AG16019ND
2019-05-23AG16891ND
2019-06-13AG19933ND
2019-08-21AG28299ND
2019-09-18AG31925ND
2019-09-18AG31924ND
2020-02-2621666504.00ND
2020-02-2621666502.00ND
2020-02-2621666500.00ND
2020-02-2621666498.00ND
2020-02-2621666496.00ND
2020-02-2621666494.00ND
2020-02-2621666492.00ND
2020-02-2621666490.00ND
2020-03-1121846198.00ND
2020-03-2021846300.00ND
2020-03-2321846302.00ND
2020-03-2421846304.00ND
2020-03-2521846306.00ND
2020-03-2621846309.00ND
2020-05-2022214472.00ND
2020-05-2022214474.00ND
2021-06-0924638162.00ND
2021-06-0924638160.00ND
2021-06-2424638226.00ND
2021-06-2424638224.00ND
2021-07-2924828807.00ND
2021-08-0525023235.00ND
2021-09-0225220374.00ND
2021-09-1625220376.00ND
2021-09-2925220372.00ND
2021-09-2925220370.00ND
2022-02-1026117138.00ND
2022-02-2426117111.00ND
2022-02-2426117115.00ND
2022-02-2426117113.00ND
2022-03-1726287440.00ND
2022-03-1726287438.00ND
2022-03-1726287442.00ND
2022-03-2426287436.00ND
2022-04-2026463495.00ND
2023-04-1328702262.00ND
2023-04-2628702268.00ND
2023-04-2628702266.00ND
2023-04-2628702264.00ND
2023-04-2628702260.00ND
2023-05-1028900358.00ND