The State of California Department of Toxic Substances Control (DTSC) has issued the following work notice for site investigation activities at the Zeneca site:
WORK NOTICE FOR FORMER ZENECA/ FORMER STAUFFER CHEMICAL SITE, RICHMOND, CALIFORNIA (December 5, 2007)
Beginning Thursday December 6, 2007 through Friday December 7, 2007 the Zeneca/Former Stauffer Chemical Site Responsible Parties (Cherokee Simeon Venture I, LLC, Zeneca Inc. and Bayer CropScience Inc.) will conduct field work to collect additional information needed to evaluate potential cleanup alternatives for Lot 3. Work will take place between 7 a.m. and 5 p.m.
The following activities will be conducted as outlined in the “Field Sampling Activities, Additional Sample Locations, Lot 3, Campus Bay, Former Zeneca Facility, Richmond, California”, dated October 31, 2007.
Activities will be completed using direct push drilling technology:
- The field work will take place predominantly on the Lot 3 Temporary Cap.
- Men wearing protective gear will be operating a CPT rig (similar to a large box truck) and one or two support vehicles at the site.
- Two Cone Penetrometer Test (CPT) borings will be pushed approximately 50 feet below ground surface. A grab groundwater
- sample will be collected from each CPT boring.
- Two CPT borings will be coupled with a membrane interface probe (MIP) and pushed to approximately 50 feet below ground surface. The MIP will give qualitative information about the groundwater as it is pushed into the groundwater. A Grab groundwater sample will be collected from each CPT/MIP boring.
- One grab groundwater sample will be collected from 20 feet below ground surface.
- Two soil gas samples will be collected at a later date pending favorable weather conditions. Specifics on this portion of the field work will be explained in future Site Updates.
Additional site information can be accessed from DTSC's web page at the following address: http://www.dtsc.ca.gov/ and searching the EnviroStor Data base.
For information regarding the California Department of Toxic Substances Control (DTSC) cleanup activities at this and other South Richmond Sites, please contact the following DTSC staff:
Lynn Nakashima, Project Scientist
700 Heinz Avenue
Berkeley, CA 94710
(510) 540 3839
Lnakashi@dtsc.ca.gov
Diane Fowler, Public Participation Supervisor 8800 Cal Center Drive Sacramento, CA 95826
(916) 255-6682
dfowler@dtsc.ca.gov
Nancy Cook, Public Participation Specialist 700 Heinz Avenue Berkeley, CA 94710
(510) 540-3923
ncook@dtsc.ca.gov
Members of the media should contact:
Angela Blanchette, Public Information Officer 700 Heinz Avenue Berkeley, CA 94710
(510) 540-3732
ablanche@dtsc.ca.gov