Know Your Environment. Protect Your Health.

Nitrite

City Of Modesto - Del Rio

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND70ND
2019N/A00N/A
2020ND40ND
2021ND10ND
2022ND20ND
2023ND10ND

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
2018-01-10CA5010029_004_004-201801100950ND
2018-01-10CA5010029_002_002-201801100850ND
2018-04-04CA5010029_002_002-201804040840ND
2018-05-14CA5010029_010_010-201805140830ND
2018-06-06CA5010029_001_001-201806060833ND
2018-07-06CA5010029_002_002-201807060823ND
2018-10-03CA5010029_002_002-201810030730ND
2020-05-06CA5010029_002_002-202005061055ND
2020-05-06CA5010029_001_001-202005061158ND
2020-05-06CA5010029_004_004-202005061213ND
2020-05-13CA5010029_010_010-202005131047ND
2021-05-04CA5010029_010_010-202105040905ND
2022-09-29CA5010029_002_002-202209290900ND
2022-09-29CA5010029_004_004-202209290910ND
2023-05-03CA5010029_001_001-202305030820ND