Publication Citation

USGS Series Water Supply Paper
Report Number 2463
Title Geochemical and hydrologic controls on phosphorus transport in a sewage-contaminated sand and gravel aquifer near Ashumet Pond, Cape Cod, Massachusetts
Edition -
Language ENGLISH
Author(s) Walter, Donald A.; Rea, Brigid A.; Stollenwerk, Kenneth G.; Savoie, Jennifer
Year 1996
Originating office
USGS Library Call Number (200) G no.2463
Physical description vi, 89 p. :ill., maps (some col.) ;28 cm.
ISBN

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Abstract

Currently (1993), about 170 kg/yr of phosphorus discharges into Ashumet Pond on Cape Cod from a plume of sewage-contaminated ground water. Phosphorus in the plume is mobile in two distinct geochemical environments--an anoxic zone containing dissolved iron and a suboxic zone containing dissolved oxygen. Phosphorus mobility in the suboxic zone is due to saturation of available sorption sites. Phosphorus loading to Ashumet Pond may increase significantly after sewage disposal is stopped due to phosphorus desorption from sediment surfaces.