Know Your Environment. Protect Your Health.

N-Nitrosopyrrolidine

Tesoro Viejo Master Mwc, Inc.

N-nitrosopyrrolidine is one of the DNA-damaging, cancer-causing contaminants called N-nitrosamines that can form during water treatment with the use of certain disinfectants, such as chloramine. Read More.

Pollution of water sources with effluent from municipal wastewater treatment plants and runoff from animal feeding operations contributes to nitrosamine formation. Fifteen different nitrosamines are listed as carcinogens in the U.S. Department of Health and Human Services National Toxicology Program Report on Carcinogens. The federal government has not set a legal limit for nitrosamines in drinking water and water utilities typically do not test for these contaminants. California has set a public health goal for one of the most common nitrosamines, N-nitrosodimethylamine or NDMA, at 0.003 parts per billion in drinking water, a concentration that corresponds to an estimated one-in-one-million cancer risk.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND110ND
2020ND20ND
2021ND20ND
2022ND10ND
2023N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2018-08-31CA2010017_002_002-201808310845ND
2018-10-16CA2010017_DST_900-201810160900ND
2018-11-07CA2010017_DST_900-201811070915ND
2019-04-03CA2010017_DST_900-201904031010ND
2019-07-10CA2010017_DST_900-201907100930ND
2019-09-04CA2010017_002_002-201909041040ND
2019-09-04CA2010017_003_003-201909041055ND
2019-09-04CA2010017_DST_900-201909040950ND
2019-09-11CA2010017_DST_900-201909110715ND
2019-09-18CA2010017_DST_900-201909180905ND
2019-09-18CA2010017_003_003-201909181040ND
2019-09-18CA2010017_002_002-201909181020ND
2019-09-25CA2010017_DST_900-201909250925ND
2019-10-02CA2010017_DST_900-201910020835ND
2020-01-22CA2010017_DST_900-202001220855ND
2020-10-14CA2010017_DST_900-202010140835ND
2021-04-14CA2010017_DST_900-202104140825ND
2021-10-13CA2010017_DST_900-202110130935ND
2022-01-12CA2010017_DST_900-202201120850ND