Know Your Environment. Protect Your Health.

Nitrite

Collegeville Trappe Joint Public Works Department

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.

 

81

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND120ND
2019ND130ND
2020ND150ND
2021ND130ND
2022ND130ND
2023ND150ND

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
2018-02-0520180478ND
2018-04-1820181568ND
2018-04-1820181573ND
2018-04-1820181569ND
2018-04-1820181572ND
2018-04-1820181570ND
2018-04-1820181574ND
2018-04-1820181571ND
2018-08-1320183124ND
2018-08-1320183123ND
2018-10-1520183944ND
2018-10-1520183945ND
2019-02-0420190429ND
2019-02-0420190430ND
2019-04-1520191435ND
2019-04-1520191432ND
2019-04-1520191436ND
2019-04-1520191434ND
2019-04-1520191433ND
2019-04-1520191437ND
2019-05-149053535-01ND
2019-08-1920193301ND
2019-08-1920193300ND
2019-11-0420194272ND
2019-11-0420194271ND
2020-02-0321501269.00ND
2020-02-0321501267.00ND
2020-04-2022020724.00ND
2020-04-2022020722.00ND
2020-04-2022020720.00ND
2020-04-2022020718.00ND
2020-04-2022020716.00ND
2020-04-2022020714.00ND
2020-04-2022020712.00ND
2020-06-1522414068.00ND
2020-06-1522414070.00ND
2020-06-1522414072.00ND
2020-07-2022605403.00ND
2020-07-2022605401.00ND
2020-10-1923180743.00ND
2021-02-0323711196.00ND
2021-04-1924245984.00ND
2021-04-1924245996.00ND
2021-04-1924245993.00ND
2021-04-1924245999.00ND
2021-04-1924245990.00ND
2021-04-1924245987.00ND
2021-05-1724436773.00ND
2021-05-1724436776.00ND
2021-05-1724436767.00ND
2021-05-1724436770.00ND
2021-07-1924826937.00ND
2021-10-1825402752.00ND
2022-02-2226116094.00ND
2022-04-1826462283.00ND
2022-04-1826462289.00ND
2022-04-1826462291.00ND
2022-04-1826462285.00ND
2022-04-1826462281.00ND
2022-04-1826462287.00ND
2022-05-1626646991.00ND
2022-05-1626646987.00ND
2022-05-1626646989.00ND
2022-05-1626646993.00ND
2022-07-1827035469.00ND
2022-10-1727639829.00ND
2023-02-0628171409.00ND
2023-04-1728700380.00ND
2023-04-1728700384.00ND
2023-04-1728700386.00ND
2023-04-1728700382.00ND
2023-04-1728700390.00ND
2023-04-1728700388.00ND
2023-05-0128700525.00ND
2023-05-0128700523.00ND
2023-05-0128700527.00ND
2023-05-0128700521.00ND
2023-07-2429300388.00ND
2023-07-2429300386.00ND
2023-10-1629885084.00ND
2023-10-1629885082.00ND