Know Your Environment. Protect Your Health.

DCPA di-acid degradate

Quincy Water Department City Of

DCPA di-acid degradate is a residue of the herbicide dacthal, or DCPA, which is used for urban, household and agricultural applications. Dacthal is a possible human carcinogen whose use was limited by the EPA in 2005 due to concerns about water contamination.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201827.9 ppb4414.2 ppb - 44.3 ppb
201922.6 ppb555.55 ppb - 38.2 ppb
2020N/A00N/A
202123.8 ppb448.94 ppb - 45.7 ppb
202222.5 ppb447.71 ppb - 32.8 ppb
202317.2 ppb444.66 ppb - 26.8 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2018-05-0944.3 ppb
2018-05-0925.5 ppb
2018-05-2114.2 ppb
2018-05-2127.6 ppb
2019-05-2123.0 ppb
2019-05-2112.0 ppb
2019-05-2138.2 ppb
2019-05-215.55 ppb
2019-06-1734.3 ppb
2021-03-0440893318.94 ppb
2021-07-09414464445.7 ppb
2021-07-09414464118.4 ppb
2021-07-09414464522.1 ppb
2022-08-16433818432.8 ppb
2022-08-16433818632.0 ppb
2022-08-2443449177.71 ppb
2022-08-24434492017.3 ppb
2023-03-09442468726.8 ppb
2023-03-09442468511.6 ppb
2023-03-0944246864.66 ppb
2023-03-09450978525.9 ppb