signage. Access to the site would be accommodated by two driveways connecting with Magnolia Avenue. The existing vacant structures and improvements on the site would be demolished to redevelop the property as proposed.
After reviewing the project, DTSC recommends and requests consideration of the following comments:
1. The proposed development is located on a DTSC Hazardous site, Clow Valve Company. The Site is located at 1375 Magnolia Avenue Corona, CA 92879.
Potential Contaminants of Concern at the site include lead, polychlorinated biphenyls (PCBS) and diesel in shallow soil. Please continue to work with DTSC’s project manager(s) for this site and adhere to all conditions outlined in the Health & Safety Plan for the site.
2. If buildings or other structures are to be demolished on any project sites included in the proposed project, surveys should be conducted for the presence of leadbased paints or products, mercury, asbestos containing materials, and polychlorinated biphenyl caulk. Removal, demolition, and disposal of any of the abovementioned chemicals should be conducted in compliance with California environmental regulations and policies. In addition, sampling near current and/or former buildings should be conducted in accordance with DTSC’s 2006 Interim Guidance Evaluation of School Sites with Potential Contamination from Lead Based Paint, Termiticides, and Electrical Transformers
3. DTSC recommends that all imported soil and fill material should be tested to ensure any contaminants of concern are within approved screening levels for the intended land use. To minimize the possibility of introducing contaminated soil and fill material there should be documentation of the origins of the soil or fill material and, if applicable, sampling be conducted to ensure that the imported soil and fill material meets screening levels for the intended land use. The soil sampling should include analysis based on the source of the fill and knowledge of the prior land use.
Rocio Lopez
January 3, 2024
DTSC appreciates the opportunity to comment on the MND for the Magnolia Avenue Business Center. Thank you for your assistance in protecting California’s people and environment from the harmful effects of toxic substances. If you have any questions or would like any clarification on DTSC’s comments, please respond to this letter or via email for additional guidance.
Sincerely,
Dave Kereazis
Associate Environmental Planner
HWMPPermitting Division – CEQA Unit
Department of Toxic Substances Control
[email protected]
Rocio Lopez
January 3, 2024
cc: (via email)
Governor’s Office of Planning and
Research State Clearinghouse
[email protected]
Tamara Purvis
Associate Environmental Planner
HWMP Permitting Division – CEQA Unit
Department of Toxic Substances Control
[email protected]
Scott Wiley
Associate Governmental Program Analyst
HWMP Permitting Division – CEQA Unit
Department of Toxic Substances Control
[email protected]
Irena Edwards
Environmental Scientist
SMRP Cleanup
Department of Toxic Substances Control
[email protected]
JN 896-008
MEMORANDUM
TO: Rocio Lopez, Consulting Planner
FROM: Tracy Zinn, Principal
DATE: January 30, 2024
RE: Magnolia Avenue Business Center – Responses to DTSC Comment Letter (SCH No. 2023120166)
As the preparer of the Magnolia Business Center Initial Study/Mitigated Negative Declaration (IS/MND), T&B Planning, Inc. provides responses to a comment letter submitted by DTSC.
Please refer to the comment letter attached to this Memorandum. Comments have been numbered and the corresponding responses are provided below.
Comment Response
1 The City of Corona acknowledges and appreciates the comments provided by the Department of Toxic Substances Control (DTSC). This comment provides a general description of the Project that is consistent with the Project described by the Project’s IS/MND. Please refer also to the responses to Comments 2 through 4, below.
2 DTSC notes the Potential Contaminants of Concern associated with the Project site and recommends the Project Applicant continue to work with DTSC’s project manager(s) for this site and to adhere to all conditions outlined in the Health & Safety Plan for the site. The Commenter is referred to Section 9 of the Project’s IS/MND, which includes a detailed analysis of the Project site’s existing conditions with respect to contamination. As noted therein, a Land Use Covenant (LUC) has been prepared and recorded with the County Recorder that limits the Project site to commercial and industrial use (no residential, hospitals, day care, or schools are allowed) and also imposes other requirements of the site-specific Soil Management Plan (SMP), which was included as Technical Appendix F6 to the Project’s IS/MND. The LUC has been reviewed and approved by DTSC and the Environmental Protection Agency (EPA). The plan for implementation includes the existing property owner removing the areas of elevated concentrations of PCBs and then the Project Applicant grading the Project site under the SMP. The grading would be coordinated so that the soil in the area of the required cap remains in place and is not moved to outside of the Toxic Substances Control Act (TSCA) Cap. Annual inspections are required with a report submitted to DTSC confirming compliance with the terms of the LUC. The LUC will be revised and re-recorded upon January 30, 2024
completion of the pending field work. Accordingly, because the IS/MND properly accounts for the site’s existing contaminated conditions, no revision to the IS/MND is warranted pursuant to this Comment.
3 The Commenter recommends compliance with DTSC’s 2006 Interim Guidance Evaluation of School Sites with Potential Contamination from Lead Based Paint, Termiticides, and Electrical Transformers, during demolition activities associated with the Project. Since preparation of the Project’s IS/MND, the structures on the property all have been demolished and disposed of in accordance with an approved demolition permit, and all demolition activities occurred in full conformance with SCAQMD Rule 1403. Accordingly, no revision to the IS/MND is warranted pursuant to this Comment.
4 The Commenter recommends that all imported soil and fill material should be tested to ensure any contaminants of concern are within approved screening levels for the intended land use in order to minimize the possibility of introducing contaminated soil and fill material. This comment is noted. Testing of imported soils would occur by the Applicant’s contractor prior to importing earth materials to the Project site.
5 The City acknowledges and appreciates the comments provided by this Comment letter, and the City will direct any questions to DTSC at the contact information provided.
Green Jobs & Clean Communities
P.O. Box 79222
Corona, CA 92877
January 23, 2024
Rocio Lopez
Consulting Planner
City of Corona
[email protected]
Re: Magnolia Avenue Business Center Project, SCH Number 2023120166 Dear Ms. Lopez:
On behalfofthe Golden State Environmental Justice Alliance ("GSEJA"), I am writing to you regarding the Magnolia Avenue Business Center Project, SCH Number 2023120166 ("Project").
GSEJA is withdrawing its comment letter and opposition to the Project. The Project's developer has addressed GSEJA's concerns about environmental mitigation. geoi
D' �ector