Speciation and fate of arsenic in three lakes of the Aberjona watershed
A.C. Aurillo, R.P. Mason, H.F. Hemond 1994 Environmental Science and Technology v. 28, n. 4, p. 577–585
This article from Environmental Science and Technology shows the manner in which sediment cores taken from the bottom of the Mystic Lakes were analyzed and used to interpret historic periods (1890s to present) of arsenic transport in the Aberjona River watershed. The inference is made that arsenic and other heavy metals have been deposited in the wetland adjacent to wells G and H in Woburn, Massachusetts.