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Drake Chemical

EPA Weekly Situation Reports for May 1999

U. S. ARMY CORPS OF ENGINEERS
DRAKE CHEMICAL SUPERFUND SITE

182 MYRTLE STREET
LOCK HAVEN, PA 17745
PHONE 717-748-4505
FAX 717-748-7549

Friday, May 28, 1999

FOR DATES: From 7:00 a.m. Friday, May 21 1999 to 7:00 a.m. Friday, May 28, 1999.

The prime contractor, OHM, continued to demobilize the thermal destruction facility (TDF) and supporting structures and equipment. The subcontractor responsible for the crane and rigging of the large equipment on the TDF continued working 12 hrs per day. The subcontractor responsible for the removal of the refractory material in the rotary kiln mobilized to site on Tuesday, May 25, 1999 and began work the same day. Due to the excessive noise the removal equipment will generate, the work will be performed during daylight hours only. OHM is currently working 12 hours per day, 5 days a week demobilizing the TDF and support equipment.

Site activities during the time frame of this report included the dismantle of the TDF (88% complete) and feed preparations building, removal of the kiln refractory (5% complete), equipment decontamination, the treatment of decontamination water in the waste water treatment plant, dust control, and the shipment of scrap metal, debris, and contractor property offsite. The subcontractor responsible for the crane and rigging of the larger pieces of equipment continued work this week. The major equipment removed from the TDF this week was the fiberglass stack and support structure, the (6) bag house modules, the cyclone and the second third of the feed preparation sprung structure.

Related site activities included a weekly progress meeting held on Tuesday, May 25, 1999, with representatives from the USEPA, PADEP, USACE, OHM, and the City of Lock Haven in attendance.

Major activities for the next week include the removal of the kiln refractory, structural steel and landing adjacent to the secondary combustion chamber and complete removal of the feed preparation sprung structure.

PREPARED BY: John Ricard for Michael Ogden USACE


Friday, May 21, 1999

FOR DATES: From 7:00 a.m. Friday,May 14, 1999 to 7:00 a.m. Friday, May 21, 1999.

The prime contractor, OHM, continued to demobilize the thermal destruction facility (TDF) and supporting structures and equipment. The subcontractor responsible for the removal of residual materials inside of the TDF equipment completed work and de-mobilized from the site. The subcontractor responsible for the crane and rigging of the large equipment on the TDF continued working 12 hours perday. OHM is currently working 24 hours a day, 5 days a week demobilizing the TDF and all support equipment. Night shift work was completed Thursday May 20th. All remaining work onsite will be performed on the day shift only.

Site activities during the time frame of this report included wastewater management, equipment decontamination, dust control, excavation surveys, and the shipment of scrap metal, debris and contractor property off site. The sub-contractor responsible for cleaning equipment and duct work on the TDF with a vacuum truck completed its work on Thursday, May 20th. The vacuum truck and hoses were decontaminated prior to leaving the site. The materials removed were placed in a storage bin and sampled in the same manner as production ash. The subcontractor responsible for the dismantle of the larger structures on the TDF continued work this week. The major equipment removed from site included the two large city water storage tanks, the acid gas scrubbing tanks, the induced draft fan and duct work, and all of the ladders and platforms on the stack and SCC towers. The dismantle of the feed preparations sprung building continued this week. Approximately 50% of the building has been taken down to date.

Related site activities included a weekly progress meeting held on Tuesday, May 18, 1999, with representatives from the USEPA, PADEP, USACE, OHM, and the City of Lock Haven in attendance.

Major activities for the next week include the removal of the stack, bag house modules, and SCC and quench tower components. The sub contractor responsible for the removal of the refractory in the rotary kiln will mobilize to the site on Monday, May 24th and begin work the same day. OHM will continue to operate the WWTP treating any water generated during decon operations. OHM will also continue to ship equipment, debris and scrap metal off-site to various facilities.

PREPARED BY: Chad Thompson for Michael Ogden (USACE)


Friday, May 14, 1999

FOR DATES: From 7:00 a.m. Friday,May 7, 1999 to 7:00 a.m. Friday, May 14, 1999.

The prime contractor, OHM, continued to demobilize the thermal destruction facility (TDF) and supporting structures and equipment. A subcontractor responsible for the removal of any residual materials inside of the TDF equipment mobilized to site with a vacuum truck. The subcontractor responsible for the crane and rigging of the large equipment on the TDF mobilized to the site. The contractor is currently working 24 hours a day, 5 days a week demobilizing the TDF and all support equipment.

Site activities during the time frame of this report included wastewater management, equipment decontamination, ash backfilling, dust control, excavation surveys, and the shipment of scrap metal, debris and contractor property off site A sub-contractor continued cleaning equipment and duct work with a vacuum truck. The materials being removed are being placed in a storage bin and sampled in the same manner as production ash. A subcontractor responsible for the dismantle of the larger structures on the TDF started on Monday, May 10. The removal of all of the components and support structures for the ash drag conveyor systems was completed. All of the burner control system skids were removed from the TDF. The weigh belt conveyor, feed screws and supporting steel structures were removed. The removal of the baghouse internal components was completed. The dismantle of the feed preparations sprung building was started.

Related site activities included a weekly progress meeting held on Tuesday, May 11, 1999, with representatives from the USEPA, PADEP, USACE, OHM, and the City of Lock Haven in attendance.

Major activities for the next week include the internal clean out of duct work and equipment using a vacuum truck, the crane and rigging of the stack, the acid gas scrubbing tanks, and the bag house units, the collection and sampling of any materials generated during clean out of the TDF, the treatment of any water generated during decon operations and the shipment of equipment, debris and scrap metal off-site to various facilities.

PREPARED BY: Chad Thompson for Michael Ogden (USACE)


Friday, May 7, 1999

FOR DATES: From 7:00 a.m. Friday, April 30, 1999 to 7:00 a.m. Friday, May 7, 1999.

The prime contractor, OHM, continued to demobilize the thermal destruction facility (TDF) and supporting structures and equipment. The final analytical reports for fly ash produced during the operation of the TDF were received. The last drum encountered during excavation activities was shipped off site for treatment and disposal. A subcontractor responsible for the removal of any residual materials inside of the TDF equipment mobilized to site with a vacuum truck. The contractor is currently working 24 hours a day, 5 days a week demobilizing the TDF and all support equipment.

The final fly ash analytical reports for the thermally treated material processed from February 17 to the 23rd and April 20th to the 22nd for the contents of bins B and D were received. The fly ash generated in February was stabilized using portland cement, due to the concentration of chromium being greater than 25 times the drinking water standard (DWS). After stabilization the ash was re-sampled and re-analyzed and found to be greater than the DWS but less than 25 times it. Therefore the analytical test results for both bins indicated that the thermally treated material met the project's criteria for backfill above elevation 553.

Site activities during the time frame of this report included wastewater management, equipment decontamination, ash backfilling, dust control, excavation surveys, and the shipment of scrap metal, debris and contractor property off site. Spent carbon from the WWTP onsite was shipped off site for regeneration. The bin walls in the bottom ash building were decontaminated and the majority of them were removed to produce to decon areas for large TDF equipment. A sub-contractor mobilized to the site with a vacuum truck for the removal of any residual materials inside of the TDF equipment. The materials being removed are being placed in a storage bin and sampled in the same manner as production ash. The contractor completed the removal of all electrical conduit, wire, and piping on the TDF pad. The dismantle and decon of the TDF feed system, including the weigh belt conveyor was begun. The contractor completed the removal of the acid gas scrubbing system internal components. All of the HDPE liner outside of the feed prep building was removed and placed into a roll off for off site disposal.

Related site activities included a weekly progress meeting held on Tuesday, May 4, 1999, with representatives from the USEPA, PADEP, USACE, OHM, and the City of Lock Haven in attendance.

Major activities for the next week include the mobilization of the subcontractor responsible for the crane and rigging of the large components of the TDF, the internal clean out of duct work and equipment using a vacuum truck, the removal of internal components of the bag house unit, the collection and sampling of any materials generated during clean out of the TDF, the treatment of any water generated during decon operations and the shipment of equipment, debris and scrap metal off-site to various facilities.

PREPARED BY: Chad Thompson for Michael Ogden (USACE)

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