 Mashapaug Pond has suffered from a long history of pollution.Majority of the ponds toxicity is due to high pollutant concentrations in the pond's soil and water produced by industrial activities occurring around the pond's shores.Less impactful industrial activities include deforestation and soil tilling for agriculture in the 18th century, Earl Carpenter Icehouse that harvested ice from the pond from 1814–1920, and the construction of Route 10 and the Huntington Industrial Park between 1960 and 1970.