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Record of Decision System (RODS)

SOUTH WEYMOUTH NAVAL AIR STATION

Abstract

Site Name:  SOUTH WEYMOUTH NAVAL AIR STATION
Address:   
City & State:  WEYMOUTH  MA  02190
County:  NORFOLK
 
EPA ID:  MA2170022022
EPA Region:  01
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/541/R-02/018
ROD Date:  03/08/2002
Operable Unit(s):  03
 
Abstract:  This decision document presents the No Action with Groundwater Monitoring decision for OU 3, the Small Landfill at NAS South Weymouth, in Weymouth, Massachusetts. NAS South Weymouth was placed on the National Priorities List (NPL) in May 1994 by EPA pursuant to CERCLA. NAS South Weymouth property is owned by the U.S. Government, and was operated by the Navy. It is located primarily in the town of Weymouth, Massachusetts. NAS South Weymouth was developed during the 1940's for dirigible aircraft used to patrol during WWII. The facility was closed at the end of the war and was reopened in 1953 as a Naval Air Station for aviation training. NAS South Weymouth was in continuous use since that time until it was operationally closed on September 30, 1996. The U.S. Department of the Navy is the lead agency, and EPA is the support agency, for CERCLA activities at NAS South Weymouth. This ROD relates to the Small Landfill OU3, MA2170022022.
 
Remedy:  There are no principal or low-level threats at the Small Landfill and no action is necessary at the Small Landfill to protect human health and the environment. However, low levels of thallium were reported near the analytical detection limit in a single groundwater sample. Therefore, one year of groundwater monitoring will be performed to evaluate the potential existence and seasonal variability of thallium in groundwater. The one year of groundwater monitoring will include four consecutive quarterly rounds of sampling of the six existing monitoring wells for chemical analysis.
 
Text:  View full-text ROD [ 1.44M ]
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