(Boston, Mass.??? Sept. 19. 2011) ??? Cleanup of household appliances, contaminated soil, drums filled with toxic waste and other hazardous materials was completed recently by the US Environmental Protection Agency at an abandoned one-acre residential parcel in Hillsborough, N.H. The cleanup of the Davison Property site at 471 Second NH Turnpike (Route 31) began in January and cost about $763,000.