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HomeMy WebLinkAboutDEPARTMENT OF TOXIC SUBSTANCES CONTROL RESPONSE TO COMMENTS0 Jared Blumenfeld Secretary for Environmental Protection Department of Toxic Substances Control February 14, 2019 Meredith Williams, Ph.D. Acting Director 5796 Corporate Avenge Cypress, California 90830 Mr. Jaime Murillo Senior Planner City of Newport Beach Community Development Department 100 Civic Center Drive Newport Beach, California 92660 Gavin Newsom Governor Governor's 0lficeof ll sting &Research FEB 14 2019 STATEQ tth H©USE RESPONSE TO COMMENTS FOR NEWPORT CROSSING MIXED USE PROJECT (PA 2017-107), NEWPORT BEACH; CALIFORNIA STATE CLEARINGHOUSE #2017101067 Dear Mr. Murillo: The Department of Toxic Substances Control (DISC) appreciates your Response to Comments, dated February 11, 2019, for the Newport Crossing Mixed Use Project (Project), located in Newport Beach, California. Based on the review of the Response to Comments, DTSC is uncertain what the proposed remedial goals are for the Project and whether a land use covenant (LUC) would be a selected remedy if the site is not cleaned to meet remedial goals for residential land use (unrestricted land use). DTSC recommends that Mitigation Measures MM HAZ-2 be revised as follows: (Changes made to the MM HAZ-2 are identified in strikethrough to indicate deletions and bold underlined text to signify additions.) "Prior to issuance of the first building permit, soil and soil vapor samples shall be collected from beneath the former Enjay Cleaners and soil samples shall be collected from beneath the proposed 0.5-acre public park site and tested forPCE Volatile Organic Compounds (VOCs) and OCPs, respectively. The results shall be submitted to the Orange County Health Care Agency and City Building Official. In the event that soil concentrations exceed site specific cleanup goals, affected soils shall be removed and properly treated/disposed of. Should soil vapor concentrations exceed site specific Printed en Recycled Paper Mr. Jaime Murillo February 14, 2019 Page 2 cleanup goals, short-term soil vapor extraction and treatment shall be performed to reduce soil vapor concentrations. Institutional controls will be required if the soil and soil gas cannot achieve the cleanup goals for residential land use, and/or vapor mitigation measures (e.q., passive ventilation system) are implemented to protect the future building receptors." If final determination of the site does not allow unrestricted land use or requires mitigation or Tong -term monitoring, a land use covenant is required. In this case, DTSC recommends a land use agreement to be executed between DTSC and the Project site owner(s). For further assistance with the Project site, please contact Maryam Tasnif- Abbas', DTSC's Voluntary Cleanup Coordinator, at (714) 484-5489 or submit a Voluntary Oversight Agreement (https://www.dtsc.ca.govlSiteCleanup/Brownfields/voluntary-agreements-quide.cfm). DTSC requests a copy of the document(s) determining that the project site has been remediated to meet its cleanup goals. DTSC appreciates your Response to Comments and looks forward to providing any assistance to ensure the Project site protects human health and the environment. Should you have any questions regarding this letter, please contact me at (714) 484-5392 or via email at ChiaRin.Yenadtsc.ca.gov. Sincerely, Chia Rin Yen Environmental Scientist Brownfields Restoration and School Evaluation Branch Site Mitigation and Restoration Program ar/cylyg cc: See Next Page Mr. Jaime Murillo February 14, 2019 Page 3 cc: Governor's Office of Planning and Research (via e-mail) State Clearinghouse P.O. Box 3044 Sacramento, California 95812-3044 State.clearingho use(aio or.ca. gov Mr. Dave Kereazis (via e-mail) Office of Planning & Environmental Analysis Department of Toxic Substances Control Dave. KereazisC7a dtsc.ca.gov Ms. Yolanda M. Garza (via e-mail) Brownfields Restoration and School Evaluation Branch Site Mitigation and Restoration Program Yolanda.Garza(c dtsc ca,gov