NASH HILL WATER STORAGE FACILITY, OCTOBER 2005
MASSACHUSETTS WATER RESOURCE AUTHORITY
Semper Diving & Marine performed tank inspections of two 12.5 million gallon water storage tanks containing the local cities and towns' drinking water supply. The inspections included sediment accumulation and analysis of the floor, walls, inlet and outlet pipes, columns, manways, overflows, and aesthetic water quality per contract specifications. The inspection performed by Semper's dive crew was recorded in its entirety and sent all water and sediment samples of multiple loctions within the tanks to a state certified lab for ICP scanning and analysis. Reports were submitted detailing the complete inspection of the interior and exterior of the tanks. As of January 2010, Semper is currently under contract to perform interior cleaning of both storage tanks.