SR0084588_SSCRPT - Laserfiche WebLink

Home Browse Search

Map Key Number of Direction Distance Elev/Diff Site DS Records (mi/ft) (ft) On 26JUN07, Shea Homes and DTSC executed an amendment to the existing VCA to address expansion of the site area to include a specified portion of the adjacent property identified by APN 209-450-02 as the future (at the time) Great Valley Parkway. On 9JUL07, Condor produced a Removal Action Workplan (RAW) which identified the selected method for remediation of the surface soil containing residual Dieldrin concentrations from historic practices at the site. The selected remedy was surface soil excavation of approximately 40.6 acres to a depth of 0.5ft bgs using paddle -wheel type scrapers. The total in-place volume of soil proposed for removal was approximately 33,000 in-place cubic yards (cys). Excavated soil would be encapsulated beneath the Great Valley Parkway in areas without planned subsurface utilities. After excavation, confirmation and waste characterization samples would be collected. On 10JUL07, DTSC's Cleanup Operations Division requested that the Human and Ecological Risk Division (HERD), Industrial Hygiene and Safety Branch (IHSB) review the soil/site management plan for the RAW for the site. Specifically, HERD/IHSB reviewed sections 6.3 (SJVAPCD requirements) and 7.4 (Air and Meteorological Monitoring Plan). On 11 JUL07, HERD/IHSB issued a memorandum with its conclusions and recommendations. On 18JUL07, DTSC approved the Phase II Environmental Assessment Report for the Southern portion of Neighborhood C (APNs 209-450-03 and portion of 209-450-02). In accordance with the VCA (Docket No. HAS -VCA 06/07-147), DTSC accepted submittal of the Phase II Report as equivalent documentation to a Preliminary Endangerment Assessment (PEA). On 23AUG07, Shea Homes requested implementation of the Removal Action Work Plan be postponed indefinitely due to the economic slowdown in the residential real estate market. The Site property was fenced and did not pose a threat to public health or the environment. DTSC approved the postponement on the condition that a public notice was filed in the local area newspaper, that Shea Homes mail out a copy of the public notice to all parties on the DTSC approved site mailing list, and that a written notice be provided to DTSC (at least 30 days) and to all parties on the DTSC approved site mailing list (at least 5 days) prior to the commencement of the RAW implementation action. On 24SEP07, DTSC signed a California Environmental Quality Act (CEQA) Notice of Exemption (NOE) which was filed with the Office of Planning and Research (OPR), State Clearinghouse on 27SEP07. The CEQA NOE underwent a 30 -day public comment period from 23JUL07 to 22AUG07 which allowed the general public an opportunity to review the RAW and NOE, and to contact DTSC if they had questions or comments regarding the proposed project. One public inquiry was received, the result of which, did not require that any changes be made to the RAW. The RAW and NOE were then considered final and approved. On 11 OCT07, DTSC approved the RAW (conditionally) pending submittal of two copies of the final RAW to DTSC and one copy to the information repository. On 13SEP13, the Proponent notified DTSC that they wanted to reactivate the project and enter into a VCA Amendment with DTSC to allow for completion of the Site cleanup. DTSC produced an amendment to the VCA and mailed out the official amendment for the Proponent's signature. The proponent signed and returned the document for DTSC's counter signature and execution. On 11 OCT13, DTSC mailed out a fully executed copy of the amended VCA to the Proponent. DTSC's letter noted the commencement date for the fieldwork to be 140CT13. By 23DEC13, the Dieldrin contaminated soil was encapsulated and the Proponent was preparing for the installation of the road at the site. On 8AUG16, a Removal Action Completion Report (RACR) was produced for the site by Condor. The RACR concluded that the removal action at the site was conducted in the fall of 2013 and was conducted in general accordance with the RAW dated 9JUL07. The RACR also noted that the final installation of the roadway was completed in August 2016 which completed the encasement area cover for the project. Based on the analysis of samples collected for the confirmation and waste characterization, Condor recommended that the residential portion of the site be approved for occupancy and that a Land Use Covenant be executed for the waste soil encapsulation area. On 8MAR17, DTSC approved an Operations and Maintenance Plan (OMP) produced by Condor (March 2017) for the site. The OMP outlined the procedure for the long term maintenance of the site and included the Soil Management Plan (SMP) therein. On 28JULl7, an Irrevocable Letter of Credit was produced by US Bank and provided to DTSC for the amount of the FA as estimated by DTSC's Engineering and Special Projects Office (ESPO) for the Operations and Maintenance activities necessary to maintain the remedy selected for the site. On 23AUG17, DTSC mailed out a signed copy of the Land Use Covenant (LUC) for the site outlining the land use restrictions for the site. The LUC was recorded by the County of San Joaquin on 1 SEPI 7 at 13:59:32 hours. On 31AUG17, DTSC mailed out a fully executed Operations and Maintenance Agreement (OMA) for the site to the Proponent. The OMA was signed and considered fully executed on 29AUG17. In this mailing, DTSC also took the opportunity to note the Financial Assurance (FA) (OMA: Section 9) for the site as, "verified and fully in effect" at this time. On 13SEP17, DTSC produced a Certification of Remedial Action for the site and mailed out a certification letter to the Proponent which certifies that the remediation action at the site is complete. In late September 2017, the site was transferred over to a local government agency - the Mountain House Community Services District (MHCSD). The proponent asked that a new OMA/OMP needed to be produced for MHCSD and that they would be taking over as Proponent for the site. A new OMA/OMP was produced with the assistance of DTSC's Office of Legal Counsel (OLC) and sent to MHCSD for signature. There was no further action on this change until February 2018. On 22AUG18. DTSC supplied MHCSD with the final revised OMA. On 6SEP18, DTSC received the final signed OMA from MHCSD and countersigned the OMA and supplied a copy to MHCSD. erisinfo.com I Environmental Risk Information Services Order No: 21080200152