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2007
Revisions submitted to the City of Huntington Beach draft Five-Year Implementation Plan for the Southeast Coastal Project Area
Soils Remedial Investigation conducted in mineral lease areas of Site.
Draft RAP submitted to DTSC.
Revised Feasibility Study submitted to DTSC and approved by DTSC.
Revised Groundwater Remedial Investigation Report submitted to DTSC and approved by DTSC.
Interim Groundwater Monitoring Program Workplan submitted to DTSC and approved by DTSC.
Conducted groundwater sampling event.
Supplemental Soils Remedial Investigation Workplan submitted to DTSC.
2006 Third and Fourth Quarter
Additional Groundwater Monitoring.
Groundwater Remedial Investigation Report under review by DTSC.
Revised (Second) Feasibility Study under review by DTSC.
Emergency Action Completion Report and Addendum accepted by DTSC.
Emergency Action Completion Report Addendum submitted to DTSC.
2006 Second Quarter
Additional groundwater data are collected
in the second quarter of 2006 to assist in finalizing the
Groundwater Remedial Investigation.
March 2006
Emergency Action Completion Report submitted to DTSC.
January 2006
Completed Emergency Action at Ascon Landfill Site.
November 2005
Revised (Second) Feasibility Study submitted to DTSC.
October 2005
Held Open House at Edison Community Center to brief the community
on the Emergency Action at Ascon.
July 2005 - January 2006
Emergency Action fieldwork conducted at Site.
July 2005
Community meeting held at Huntington Beach City Hall.
Final Emergency Action Workplan submitted to DTSC.
Received DTSC and City Approval of Final Emergency Action
Workplan.
Received required permits for Emergency Action.
Began Emergency Action Fieldwork.
June 2005
Emergency Action Workplan submitted to DTSC.
May 2005
Received Imminent or Substantial Endangerment Determination
Letter from DTSC.
April - May 2005
Prepared and submitted stability evaluation of earthen berm
along Hamilton Avenue to DTSC.
March 2005
Groundwater Remedial Investigation Report submitted to DTSC.
February - April 2005
Collected, treated and discharged approximately 3.8 million
gallons of rainwater to Orange County Sanitation District
under permit due to heaviest rainfall ever received at the
Ascon Landfill Site.
Continued inspections of Ascon Landfill Site throughout rains.
December 2004
Fourth quarterly groundwater sampling conducted per the DTSC
approved Groundwater Remedial Investigation / Feasibility
Study Workplan.
September 2004
Third quarterly groundwater sampling conducted per the DTSC
approved Groundwater Remedial Investigation/Feasibility Study
Workplan.
August 2004 - November 2005
Ascon Landfill Site Responsible Parties analyzed and evaluated
data obtained during the additional field testing performed
from March through December 2004 in support of the Revised
Feasibility Study.
June 2004
Second quarterly groundwater sampling conducted per the DTSC
approved Groundwater Remedial Investigation/Feasibility Study
Workplan.
May - July 2004
Onsite testing was conducted and field measurements collected
per the Pilot Study No. 3 Workplan and Addenda.
April 2004
First quarterly groundwater sampling conducted per the DTSC
approved Groundwater Remedial Investigation/Feasibility Study
Workplan.
March 2004
Ascon Landfill Site Responsible Parties started performing
additional field testing in support of the Revised Feasibility
Study per the DTSC approved Workplan and Addenda.
Fieldwork delayed due to oil release at Krik #80 oil production well.
February 2004
Report of findings from the perimeter air monitoring submitted
to the DTSC. The results showed that the Ascon Landfill Site
is not significantly impacting air quality.
DTSC conditionally approved the Groundwater Remedial Investigation/Feasibility
Study Workplan.
New groundwater wells were installed per the Groundwater Remedial
Investigation/Feasibility Study Workplan.
January 2004
DTSC gives Ascon Landfill Site Responsible Parties the option
to perform additional testing at the site in order to obtain
more data needed to complete the EIR, and to evaluate additional
remedial alternatives and approaches to implementing the remedy.
Submitted the Pilot Study No. 3 Workplan to the DTSC.
December 2003
Final round of perimeter air samples were collected per the DTSC approved Perimeter Air Sampling Workplan.
June 2003
A tidal study was performed to determine potential
groundwater influence due to the change in tides.
April 2003
The RPs entered into contract with PCR Services to perform
the Environmental Impact Assessment (EIA). DTSC approved Perimeter
Air Sampling Report Workplan. First round of sampling was
conducted in May 2003.
January 2003
The RPs entered into a Consent Order with DTSC to prepare
a Remedial Investigation/Feasibility Study for groundwater,
complete the Remedial Action Plan (RAP) for soil/waste and
a RAP for groundwater, prepare California Environmental Quality
Act (CEQA) documents (e.g., Environmental Impact Report ["EIR"])
and perform remedial design and implementation of the remedial
actions approved in each RAP. |
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