B&V WASTE SCIENCE AND TECHNOLOGY CORP. ji OtPiSr ...1-CS125-005 from the western most rafter located...

B&V WASTE SCIENCE AND TECHNOLOGY CORP.

MEMORANDUM

U.S. EPA REGION VII TES IX - Des Moines TCE Site Phase II Supplemental RI Oversight

ji OtPiSr: _„ j

BVWST Project 45526.300 BVWST File D.4

September 16, 1991

To: Craig Willis (PM)/File

From: Sarah Roberts

Re: Oversight of the Eckenfelder Inc. Phase II Supplemental RI field sampling for the South Area Source Control Operable Unit on the DiCO Inc. portion of the Des Moines TCE site.

This memorandum summarizes the observations of TES IX Field Team representative Sarah Roberts during oversight efforts on August 27 to August 29, 1991, and September 3 and 4, 1991. Summary tables presenting the sampling efforts of Eckenfelder, Inc., a photocopy of the field notes, and oversight photographs are attached for reference.

August 27. 1991

• Mr. Ben Perkins, Eckenfelder, was in the process of collecting samples from SB-52 when Ms. Roberts arrived onsite.

• Eckenfelder collected SB-53, SB-54, and SB-55 samples.

• Eckenfelder thought the USEPA would be analyzing their two split samples, to be obtained from the Aldrin tank area, for pesticides only. After some discussion between the Mr. Glenn Curtis, EPA Work Assignment Manager, Eckenfelder, and Ms. Roberts, it was understood by Eckenfelder, that the USEPA would be conduct volatile organic analysis (VOA), semi-VOAs, pesticides/PCBs analysis, and Target Analyte List (TAL) analysis for inorganic parameters.

• A USEPA split sample was collected from sample SB-50 and designated CS125-001. Eckenfelder will analyze its sample for pesticides only. The USEPA will analyze its split for VOAs, semi-VOAs, pesticides/PCBs, and TAL parameters. The split sample for pesticides/PCBs was obtained from a depth of 0.9 feet (ft) to 1.3 ft. The split sample for the VOAs, semi-VOAs, and TAL parameters was obtained from a depth of 1.3 ft. to 1.8 ft.

• A USEPA split sample was collected from sample SB-47 and designated CS125-002. Eckenfelder will analyze its sample for pesticides only. The USEPA will analyze its split for

30221173

Superfund


MEMORANDUM Page 2

EPA REGION VII BVWST Project 45526.300 TES IX - Des Moines TCE Site September 16, 1991 Phase II Supplemental RI Oversight

VOAs, semi-VOAs, pesticide/PCBs, and TAL parameters. The split sample for pesticides/PCBs was obtained from a depth of 0.9 ft. to 1.2 ft. The split sample for VOAs, semi-VOAs, and TAL parameters was obtained from a depth of 1.3 ft. to 1.7 ft.

• Observed drilling and sampling of shallow auger boring SB-67.

Auaust 28. 1991

• Eckenfelder collected SB-60 and SB-66 samples.

• A USEPA split sample was collected from sample SB-65 and designated CS125-003. Eckenfelder will analyze its sample for VOAs only. The USEPA will analyze the sample for VOAs, semi-VOAs, pesticides/PCBs, and TAL parameters. The split sample for pesticides was obtained from a depth of 0.9 ft. to 1.6 ft. The split sample for the VOAs, semi-VOAs, pesticides/PCBs, and TAL parameters was obtained from a depth of 1.9 ft. to 2.4 ft.

Eckenfelder collected SB-56, SB-57, SB-58, SB-59, SB-62, SB-63, SB-64, and SB-70 samples.

August 29. 1991

The thickness of floating product was measured in the abandoned water well. The well contained 0.14 feet of floating product (LNAPL) and no sinking product (DNAPL).

• Layne Western Company set up the drilling rig to proceed with RI-4.

• Eckenfelder performed continuous soil sampling during drilling activities.

• Because of field conditions encountered during drilling operations, Eckenfelder chose to install a 15 foot screen instead of the 20 foot screen called for in the work plan.

• Eckenfelder calculated screen to 12.1 ft. and sand pack to 9.5 ft below land surface (bis).


MEMORANDUM Page 3


• Installed bentonite pellets to 7.4 ft bis.

• The equipment to install the cement-bentonite slurry had not arrived. Eckenfelder said the slurry would be installed and all work completed on RI-4 the next day, August 30, 1991.

September 3. 1991

• Eckenfelder collected wipe sample number WPAl from a steel column located in the west half of the Aldrin tank room. WPAl was collected approximately five feet from the floor and WPAla, a duplicate sample, was collected from the area located directly beneath WPAl.

• Eckenfelder collected wipe sample number WPA2D from a crossbeam located on the south side of the Aldrin tank room and adjacent to the Aldrin tank. WPA2D was collected approximately seven feet from the floor as indicated on Attachment 1.

• Eckenfelder collected wipe sample number WPA3 from a crossbeam located on the east side of the Aldrin tank room and adjacent to the Aldrin tank. WPA3 was collected approximately seven feet from the floor. Eckenfelder then collected overlay wipe sample number WPA3-0L from the same location as WPA3.

• Eckenfelder collected wipe sample number WPA4 from a crossbeam located on the west side of the Aldrin tank room. WPA4 was collected approximately seven feet from the floor as indicated on Attachment 1.

• Eckenfelder attempted to obtain a dust sample from the top of a group of lockers located in the southeast portion of the room located to the north and adjacent to the Aldrin tank room. A dust sample was not collected because there was insufficient accumulation. Eckenfelder proceeded to collect wipe sample number WPA5 from the top of the lockers.

• Eckenfelder collected wipe sample number WPA6 from the storage rack located along the north wall in the room located to the north of and adjacent to the Aldrin tank room.


MEMORANDUM Page 4


• Eckenfelder collected wipe sample number WPA7 from the top of storage shelves located along the north wall in the northern most room of the maintenance building.

• Eckenfelder collected equipment blank wipe sample number WPAll.

• Eckenfelder collected wipe sample number WPBl from the side of an iron crate located in the former DiChem building. The iron crate is in the northeastern portion of this building and the sample location is depicted by fluorescent green spray paint.

• Eckenfelder collected wipe sample number WPB2 from a support beam located on the north wall in the "mixer area" approximately five feet from the floor in the former Dichem building. Eckenfelder then collected duplicate sample number WPB2a from the area located directly beneath WPB2.

• Eckenfelder collected dust sample number WPCID from the window sill located in northwest corner of the warehouse mixer area.

• Eckenfelder collected wipe sample number WPC2 from the surface of the base of the western most support beam located along the north wall of the warehouse building.

• Eckenfelder collected dust sample number WPC3D from the corner where the concrete floor abuts the concrete base of the western most support beam located along the north wall of the warehouse building.

• Eckenfelder collected wipe sample number WPC4 from the east side of the north dock door's frame located in the warehouse building.

• Eckenfelder collected equipment blank wipe sample number WPCll.


MEMORANDUM Page 5


September 4. 1991

• Eckenfelder collected dust sample number WPA8D from the rafter second from the door located in the northern most room of the maintenance building. The sample location of the rafter is the area directly north of a ceiling-mounted blower.

• Eckenfelder collected dust sample number WPA9D approximately midway on the eastern most rafter in the room located to the north adjacent to the Aldrin tank room.

• Eckenfeld.er collected dust sample number WPAIOD from the south end on the western most rafter in the room located to the north adjacent to the Aldrin tank room.

• Eckenfelder collected dust sample number WPB3D in the former DiChem building from the northern rafter in an area where the support beam abuts this rafter. Suspect accumulations approximately 1/8 inch to 1/4 inch thick were observed in this area.

• Eckenfelder collected wipe sample number WPB4 from the top surface of the hood located directly above the mixer area in the former DiChem building.

• Eckenfelder collected dust sample number WPB5D from the rafter located adjacent to the hood above the mixer area in the former DiChem building.

• Eckenfelder collected dust sample number WPB6D from the second rafter from the north wall in an area approximately 25 feet from the west end of this rafter located in the former DiChem building. Suspect accumulations approximately 1/8 inch to 1/4 inch thick were also observed in this area.

• Eckenfelder collected wipe sample number WPB7 from the second rafter from the north wall in an area approximately 25 feet from the east end of this rafter located in the former DiChem building.

• Eckenfelder collected wipe sample number WPB8 from the fourth rafter from the north wall in an area approximately 25 feet

B&V WASTE SCIENCE AND TECHNOLOGY CORP,

MEMORANDUM

EPA REGION VII TES IX - Des Moines TCE Site Phase II Supplemental RI Oversight

Page 6

BVWST Project 45526.300 September 16, 1991

from the east end of this rafter located in the former DiChem building.

Eckenfelder collected wipe sample number WPB9 from the sixth rafter from the north wall in an area approximately 25 feet from the east end of this rafter located in the former DiChem building.

Eckenfelder collected USEPA split wipe sample number 1-CS125-005 from the western most rafter located above the mixer area in the warehouse building as indicated on Attachment 2. Eckenfelder then collected wipe sample number WPC5 from a sample location adjacent to 1-CS125-005. The USEPA sample and Eckenfelder's sample will be analyzed for pesticides only.

Eckenfelder collected wipe sample number WPC7 from the ceiling crossbeam located on the north side of the south room in the warehouse building.

Eckenfelder collected wipe sample number WPC8 from the ceiling mounted blower located in the south room in the warehouse building. Eckenfelder then collected overlay wipe sample number WPC8-0L from the same location as WPC8.

Eckenfelder collected wipe sample number WPC9 from the north end of the rafter located in the west room of the warehouse building as indicated on Attachment 3.

Eckenfelder collected wipe sample number WPCIO from the north end of the rafter located in the west room of the warehouse building.

Eckenfelder collected wipe sample number WPBIO from a support beam located west of the make-shift office in the former DiChem building.

CAW29C MC19.wp5

Attachments Field Notes (logbook pages Attachments 1, 2, and 3 Site Photographs (14)

28 - 48 and P5 - P7)

DES MOINES TCE SITE SAMPLING OVERSIGHT

SUMMER 1991

BORING NO.

•SHALLOW BORING SAMPLES SB-49 SB-50 SB-52 SB-53 SB-54 S B - 5 5 SB-56 SB-57 SB-58 SB-59 SB-60 SB-62 SB-63 SB-64 S B - 6 5 SB-66 SB-70

MONITORING WELL R l - 4

DATE SAMPLED BY ECKENFELDER. INC

8 - 2 7 - 9 1 8 - 2 7 - 9 1 8 - 2 7 - 9 1 8 - 2 7 - 9 1 8 - 2 7 - 9 1 8 - 2 7 - 9 1 8 - 2 7 - 9 1 8 - 2 8 - 9 1 8 - 2 8 - 9 1 8 - 2 8 - 9 1 8 - 2 8 - 9 1 8 - 2 8 - 9 1 8 - 2 8 - 9 1 8 - 2 8 - 9 1 8 - 2 8 - 9 1 8 - 2 8 - 9 1 8 - 2 8 - 9 1

8 - 2 9 - 9 1

EPA SPLIT SAMPLE COLLECTED

NOTE 1 NOTE 1

— — — — — — — — — — — —

NOTE 1 — —

——

REMARKS

— — — — — - -— — — — — — — — — — —

GW a t 18 f

'The sample interval depth for all shallow boring samples is 0.7 feet - Z4 feet •'Continuous soil sampling occurred at 5 foot intervals. No samples were submitted for

analyses. NOTE 1: VGA, semi-VOA, Pesticide/PCB, and TAL parameters.

Page 1 of 3

DES MOINES TCE SITE SAMPLING OVERSIGHT

SUMMER 1991

INTERIOR WIPE/ DUST SAMPLES

MAINTENANCE

WPAl

WPAla

WPA2D

WPA3

WPA3-0L

WPA4

WPA5

WPA6

WPA7

WPA8D

WPA9D

WPAIOD

WPAll

BUILDING

FORMER DICHEM BUILDING

WPBl

WPB2

WPB2a

WPB3D

WPB4

DATE SAMPLED BY ECKENFELDER, INC

9-3-91

9-3-91

9-3-91

9-3-91

9-3-91

9-3-91

9-3-91

9-3-91

9-3-91

9-4-91

9-4-91

9-4-91

9-3-91

9-3-91

9-3-91

9-3-91

9-4-91

9-4-91

EPA SPLIT SAMPLE COLLECTED REMARKS

No

No

No

No

No

No

No

No

No

No

No

No

No

No

No

No

No

No

Duplicate

Dust Sample

Overlay

Dust Sample

Dust Sample

Dust Sample

Equipment Blank

Duplicate

Dust Sample

Page 2 of 3

leBti DES M O I N E ^ t E SITE SAMPLING OVERSIGHT

SUMMER 1991

INTERIOR WIPE/ DUST SAMPLES

FORMER DICHEM

WPB5D

WPB6D

WPB7

WPB8

WPB9

WPBIO

WAREHOUSE

WPCID

WPC2

WPC3D

WPC4

WPC5

WPC6

WPC7

WPC8

WPC8-0L

WPC9

WPCIO

WPCll

BUILDING

BUILDING

DATE SAMPLED BY ECKENFELDER, INC

(Continued^ 9 - 4 - 9 1

9 - 4 - 9 1

9 - 4 - 9 1

9 - 4 - 9 1

9 - 4 - 9 1

9 - 4 - 9 1

9 - 3 - 9 1

9 - 3 - 9 1

9 - 3 - 9 1

9 - 3 - 9 1

9 - 4 - 9 1

9 - 4 - 9 1

9 - 4 - 9 1

9 - 4 - 9 1

9 - 4 - 9 1

9 - 4 - 9 1

9 - 4 - 9 1

9 - 3 - 9 1

EPA SPLIT SAMPLE COLLECTED

No

No

NO

No

No

No

No

No

No

No

Yes

No

No

No

No

No

No

No

REMARKS

Dust Sample Dust Sample

Dust Scimple

Dust Sample

USEPA Sample 1-CS125-005

NOTE 2

Over lay-

Equipment Blank

NOTE 2: Pesticides analyses.

Page 3 of 3

Attachment 1

Photograph Copy of Wipe Sample Number WPA4 and Dust Sample Number WPA2D Location

APPROXIMATE LOCATION OF DUST SAMPLE NUMBER WPA2D

H SIEE^ ALDRIN TANK ROO.!

APPROXIMATE LOCATION OF WIPE-SAMPLE NUMBER WPA4

WEST SIEC, ALDRIN I'AhfK ROOM

PHOTO TAKEN BY C A . WILLIS, B&V WASTE SCIENCE AND TECHNOLOGY CORP. ON AUGUST 14, 1991

Attachment 2

Photograph Copy of USEPA Split Sample Number 1--CS125-005 Location

APPROXIMATE LOCATION OF USEPA SPLIT WIPE SAMPLE 1-CS125-005 FROM RAFTER ABOVE MIXER AREA

PHOTO TAKEN BY CA . WILLIS, B&V WASTE SCIENCE AND TECHNOLOGY CORP. ON AUGUST 14, 1991

Attachment 3

Photograph Copy of Wipe Sample Number WPC9 Location

APPROXIMATE LOCATION OF WIPE SAMPLE NLTMBER WPC9

WEST ROOM, WAREHOUSE BUILHNG

PHOTO TAKEN BY CA . WILLIS, B&V WASTE SCIENCE AND TECHNOLOGY CORP. ON AUGUST 14, 1991

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B&V WASTE SCIENCE AND TECHNOLOGY CORP. ji OtPiSr ...1-CS125-005 from the western most rafter located...

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Transcript of B&V WASTE SCIENCE AND TECHNOLOGY CORP. ji OtPiSr ...1-CS125-005 from the western most rafter located...