Know Your Environment. Protect Your Health.

Nitrite

Cherry Creek Valley

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND10ND
2021N/A00N/A
2022ND100ND
2023ND140ND

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
2018-01-16S782237ND
2019-10-28S925209ND
2019-11-01S920622ND
2020-02-03S932582ND
2022-06-2716971990ND
2022-06-27S1209223ND
2022-06-291692984ND
2022-08-09S1209450ND
2022-09-22S1231449ND
2022-09-27S1231580ND
2022-10-06S1231775ND
2022-11-17S1232565ND
2022-11-21S1232558ND
2022-12-08S1256162ND
2023-01-18S1150805ND
2023-02-02S1262814ND
2023-03-02S1217587ND
2023-03-22S1277108ND
2023-04-10S1271228ND
2023-04-12S1271237ND
2023-05-19S1277816ND
2023-06-26S1277551ND
2023-07-20S1298437ND
2023-08-09S1298716ND
2023-09-21S1304804ND
2023-10-05S1312804ND
2023-11-29S1314362ND
2023-12-19S1314187ND