Quality Assurance Project Plan Including Sampling And Analysis Plan (Page 16 of 67) in pdf

Quality Assurance Project Plan Including Sampling And Analysis Plan Page 16

Hunters Point Shipyard Parcel F ESTCP Demonstration Plan

Appendix A: Quality Assurance Project Plan

A.2.3 Site Description

HPS is situated on a peninsula in the southeast corner of San Francisco, CA. The peninsula is bounded on

the north, east, and south by San Francisco Bay and on the west by the Bayview Hunters Point district.

HPS comprises about 928 acres, with approximately 400 acres of offshore sediments. From 1945 to 1974,

the Navy used HPS predominantly for ship repair and maintenance. HPS was deactivated in 1974 and

remained relatively unused until 1976, when it was leased to Triple A Machine Shop, a private ship repair

company. In 1986, the Navy resumed occupancy of HPS, but closed the Base in 1991.

Historical site activities at HPS resulted in the release of chemicals to the environment, including offshore

sediments. Environmental restoration activities are conducted in accordance with the Comprehensive

Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) as amended by the Super-

fund Amendments and Reauthorization Act of 1986 (SARA). The facility was closed under the Defense

Base Realignment and Closure Act of 1990 (BRAC) and is in the process of conversion to nonmilitary use.

Five plots, as shown in Figure A-2, having areas of 370 ft

will be used as the test plots for the ESTCP

DP. The plots will be located within the tidal flat region of Hunters Point South Basin, in the southeast

portion of the cove; this location is accessible from the shore and away from possible impacts of any

potential on-going PCB releases on the north side of the cove (Battelle, 2003) as shown in Figure A-2.

A.2.4 Project/Task Description

The scope of the ESTCP DP is to compare the effectiveness of two available large-scale mixing

technologies, demonstrate that AC treatment reduces the aqueous PCB availability and PCB

bioaccumulation results in field tests, and evaluate sediment resuspension and PCB release.

There are primary quantitative performance criteria that have been identified to measure the success of

the AC treatment technology demonstration:

1) PCB bioaccumulation in test organisms (clams),

2) PCB bioaccumulation in indigenous organisms (amphipods),

3) Homogeneity of AC application, and

4) PCB Resuspension.

The procedures developed to implement the scope of the ESTCP DP are described below in Sections

A.2.4.1 through A.2.4.3. The schedule of sampling and analysis related to these procedures is summarized

in Table A-1.

Page A-

of A-67

Quality Assurance Project Plan Including Sampling And Analysis Plan Page 16