Morse Park

3 Documents in Project

Summary

SCH Number
2011072062
Lead Agency
Department of Toxic Substances Control
Document Title
Morse Park
Document Type
NEG - Negative Declaration
Received
Present Land Use
Industrial

Document Description
DTSC is proposing to approve a Removal Action Workplan (RAW) pursuant to authority granted under Chapter 6.8, Division 20, CA Health and Safety Code (H&SC). The objective of the RAW is protect human health and the environment by removing contaminated soils on the Morse Park Site. DTSC is overseeing cleanup at the Site under a Voluntary Cleanup Agreement (Docket No. HAS-VCA 11/12-001) with the City of Sunnyvale. From the mid-to-late-1970s until 2008, various businesses, including machine shops and metal fabrication facilities, operated in five multi-tenant buildings on the Site. Prior to the 1970s, the Site was an agricultural orchard that used various pesticides. Investigations have found DDD, DDE, DDT, and lead and arsenic in the soil. The upper end of the range of naturally-occurring background levels is established by the RAW as the cleanup goal for arsenic, and was calculated to be 17 milligrams per kilogram. None of the other chemicals found during the investigation (DDD, DDE, DDT, and lead) had soil concentrations that were above the CA Human Health Screening Levels for residential (unrestricted) land use, so they do not pose a significant risk, arsenic is the only chemical that needs to be remediated. The proposed clean-up project will excavate soil approximately 16,700 tons of arsenic-contaminated soil and transport it to a disposal facility that accepts non-hazardous waste (Class II). Control measures to minimize dust, noise, and traffic impacts are included in the RAW. Excavation is expected to take up to 10 weeks and remove 2 feet of soil. The City of Sunnyvale will backfill the Site after DTSC certifies the completion of the clean up.

Contact Information
Alex Lee
Department of Toxic Substances Control
Lead/Public Agency
700 Heinz
Berkeley, CA 94710

Phone : (510) 540-3844

Location

Coordinates
37°23'55.374"N 122°0'57.891"W
Cities
Sunnyvale
Counties
Santa Clara
Cross Streets
Morse Avenue and East Weddell Drive
Zip
95492
Total Acres
5.2
Parcel #
110-14-202
State Highways
I-101
Railways
CalTrain
Airports
Moffett Federal Airfield
Schools
Bishop ES, San Miguel ES, Mission College
Waterways
Moffett Channel / Guadalupe Slough
Township
8N
Range
8W
Section
19
Base
MDB&M

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (None)
Local Action
Removal Action Workplan
Reviewing Agencies
California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW) California Department of Parks and Recreation California Department of Transportation, District 4 (DOT) California Highway Patrol California Native American Heritage Commission (NAHC) California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB) Department of Water Resources Office of Historic Preservation Resources Agency

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

Download CSV New Search Print