Week 2 Jan 20 - 24 2014

Page 1

Remediation Weekly Activity Summary Report

General Field Activities Completed: Week Ending January 24

General Field Activities Planned: Week Ending January 31

Air Monitoring Summary Week Ending January 24

Weekly Project Meeting Summary:

The project team met with Joe Hamilton and Doug Keene of Kaskaskia Engineering on Jan 22 to discuss the

finalization of the sewer replacement design and the schedule to submit plans to the City of Columbia. The site team

called-in with John Dometrorch of C.L.Richardson also present to discuss the sewer work; C.L.Richardson is likely to

be the sewer contractor. KEG is concerned that the double length culvert section necessary to eliminate the junction

structure as requested by the City will be very heavy. The junction structure is also important to CLRichardson's plans

to construct. KEG will finalize their reports and plans and submit to the City in the next week. KEG will also

communicate with the City about continuing to use the junction structure instead of the double length culvert section. C

L Richardson described their approach to construction which was consistent with our expactations. C L Richradson

provided the following estimates for project task completions: drawings 1 week; steel fabrication 2 weeks; culvert

section fabrication 2.5 weeks; installation 2 weeks. The team agreed that C L Richardson should start their efforts

ASAP after completing contract discussions with EOI; it is hoped that the sewer reconstruction can be completed

during March. It is expected that Phase I work will be completed by mid-February; the extent of Phase II excavations

will be tailored to fit the schedule of the sewer installation work and the current culvert removal. KEG agreed to

communicate with the City about our revisions and complete their package for the City in the next week. The City can

take two weeks to review, but their responses to date have been more rapid.

Ameren Columbia MGP - Remedial Action

Project Week No.:

Period:

Completed By: Dave Pluhar

1/20 - 1/24/2014

Two

January 22, 2014

PSC Project Number: 624-1302-0002

Excavation in the east end of the Phase I area continued. EOI used three haul trucks on Monday to transport soil to

the landfill. Based on the Monday experience and a commitment from Allied to keep the landfill available until 5PM,

EOI used 10 trucks on Tuesday Wednesday and Thursday to transport soil and managed four loads with most trucks

each day. EOI worked a shorter day on Friday but still moved soil from the excavation to the Jefferson City landfill.

Ameren, EOI, and PSC met with KEG on January 22 to review the design plans for the sewer replacement. EOI's

subcontractor for the sewer work, C.L.Richardson also participated in this meeting by conference call from the Site.

Chris Cady visited the Site on Janaury 22. Crockett Engineering collected samples of the stone aggregate backfill from

Boone Co. quarry that EOI will use during the project; samples were tested to determine maximum densities according

to both Standard and Modified Proctor.

Soil excavation will continue. Backfill with aggregate may begin.

Remediation phase real-time ambient air monitoring activities continued through Week 2 by Burns & McDonnell

Engineering Company (Burns & McDonnell) hourly with a PID, GC, and dust Monitor. No exceedances of the real-time

action levels were recorded. Real-time dust concentrations for Week 2 were below action levels at the perimeter of the

property. Average real-time concentration graphs are attached. Odors were present intermittently at the perimeter of

the site during Week 2.

In total, 5 time-averaged, 72-hour air sample events were collected, including baseline, as of January 24th from five

perimeter air stations. Time-averaged samples were shipped to Con-Test Analytical Laboratory for analysis.

PM10 time-averaged analytical data has been received for sampling events up to January 6, 2014. PAH time-

averaged analytical data has been received for sampling events up to January 6, 2014. VOC time-averaged analytical

data has been received for sampling events up to January 2, 2014. Time-averaged PM10, naphthalene and benzene

concentrations are below the acceptable concentrations of 150 µg/m3, 4.1 µg/m3 and 41.5 µg/m3, respectively.

Page 2


Actual Quantities Project Estimates

175.37 3432.01 3607.38 30000.00 - - -

37.38 0.00 37.38 2500.00 - - -

0.00 0.00 0.00 1000.00 - - -

212.75 3432.01 3644.76 33500.00 0.00

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

0.00 0.00 0.00 - - - - - -

Monday Tuesday Wednesday Thursday Friday

3 10 10 10 8

0 0 0 0 0



Period: 1/20 - 1/24/2014 PSC Project Number: 624-1302-0002

Type 5 Aggregate (tons)

TwoProject Week No.:

Soil Waste to Allied Waste, Jefferson City, MO (tons)

C & D Waste to Allied Waste, Jefferson City, MO (tons)

MGP Remediation Waste to PDC (tons)

Total All Disposal (tons)

Material Log

Solid Waste Material:

Clean Material:

Prior Total: This Period:Total To

Date:Original: Revised:

Material Type:

Soil Backfill (tons)

1/4-inch Stone (tons)

Sand (tons)

Rip-rap (tons)

Type 1 Aggregate (tons)

Treated Wastewater:

Trucks Transporting:

Disposed (other)

Disposal

Backfill

Discharged to Columbia Regional WWTP

Page 3

Actual Quantities Project Estimates

Prior

Total:

This

Period:

Total To

Date:Original: Revised:

0 17 17 180 - - -

0 17 17 180 - - -

0 17 17 180 - - -

0 17 17 180 - - -

0 17 17 180 - - -

0 17 17 180 - - -

0 17 17 180 - - -

0 17 17 180 - - -

0 0 0 10 - - -

0 0 0 10 - - -

0 0 0 10 - - -

0 0 0 10 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

0 0 0 25 - - -

624-1302-0002

Metals (arsenic, lead, selenium)(6010)

Project Week No.: Two

Period: 1/20 - 1/24/2014 PSC Project Number:


VOCs (5035/8260)

SVOCs (8270)

Sample Collection Summary:

Soil Samples:

Total barium (EPA 200.8)

Cyanide, total/amenable (9012)

Per-cent moisture (D-2974)

pH (9045)

TPH GRO (8260)

TPH DRO (8270)

Reactice Cyanide

Reactive Sulfide

TCLP Benzene

TCLP RCRA Metals

Ammonia as Nitrogen (EPA 350.1)

Total arsenic (EPA 200.8)

Wastewater Samples:

BOD5 (5210)

Total boron (EPA 200.7)

Total cadmium (EPA 200.8)

Total hexavalent chromium (EPA 218.6)

Total chromium (EPA 200.8)

Total zinc (EPA 200.8)



Oil & Grease (1664)

pH (4500-HB)

Phenols (420.2)

Total silver (EPA 200.8)

Total Suspended Solids ((2540-D)

Total toxic organics (EPA 624 & 625)

Cyanide (SM4500 CN-1)

Total copper (EPA 200.8)

Total iron (EPA 200.9)

Total lead (EPA 200.8)

Total mercury (EPA 200.8)

Total nickel (EPA 200.8)

Benzene (EPA 624)

Start Complete Start Complete

12/9/2013 1/10/2014 1/7/2014 1/13/2014

12/9/2013 12/13/2013 12/12/2013 12/13/2013

12/19/2013 12/20/2013 12/19/2013 12/20/2013

12/30/2013 1/4/2014 12/30/2013 1/4/2014

1/8/2014 1/10/2014

1/13/2014 1/17/2014 1/15 2014 1/17/2014

1/6/2014 1/6/2014 1/7/2014 1/7/2014

Ameren Office Building Demolition

11/12/2013 11/15/2013 11/12/2013 11/15/2013

12/17/2013 12/17/2013 12/17/2013 12/17/2013

1/8/2014 1/10/2014 1/13/2014 1/15/2014

1/9/2014 1/10/2014 1/15/2014 1/16/2014

1/17/2014 2/24/2014 1/17/2014

1/27/2014 2/24/2014 1/30/2014

2/25/2014 3/10/2014

3/11/2014 3/18/2014

3/19/2014 3/24/2014

3/11/2014 3/24/2014

3/25/2014 4/14/2014

2/25/2014 3/24/2014

3/25/2014 4/14/2014

3/3/2014 4/14/2014

Temporary Structure Assembled - 10 days 4/15/2014 4/24/2014

4/21/2014 4/25/2014

4/28/2014 4/28/2014

4/30/2014 6/13/2014

5/12/2014 7/3/2014

7/7/2014 7/17/2014

7/7/2014 7/19/2014

7/14/2014 7/19/2014

7/21/2014 7/23/2014

7/21/2014 7/31/2014

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General Site Set-up

Asbestos Abatement - 3 days




Actual DatesProjected Dates

Field Offices Established - 15 days

Perimeter Fence & Gates Revised - 3 days

Air Monitoring Stations Established - 2 days

Baseline Air Sampling Completed - 6 days

Storm Water Controls Installed - 3 days

WWPT System Assembled - 5 days

Traffic Control Plan Signs Installed - 1 day

Phase One Excavation

Sewer Replacement

Phase Two Excavation

Phase Three Excavation

Culvert Demolition

Excavations

Pre-cast Culvert Assembly

Cast-Inplace Structures Construction

Sewer Completion

Divert Flow & Remove Existing Culvert

Contents Disposal - 1 day

Structure Demolition - 3 days

Debris Disposal - 2 days

Phase One Excavation -

Phase One Backfilling

Phase One Excavation

Phase Two Backfilling

Ventilation System Assembled - 5 days

Temporary Structure Permit Received - 1 day

Phase Three Excavation -

Phase Three Backfilling

Structure Disaasembled - 10 days

Site Restoration

Pavement Repairs Completed

Top Soil & Seeding

Site Fence Revisions Completed

Site Surface Restorations Completed

Projected Dates Actual Dates






Start Complete Start Complete

7/7/2014 7/8/2014

7/7/2014 7/8/2014

7/18/2014 7/22/2014

7/21/2014 7/22/2014

7/25/2014 7/25/2014

7/28/2014 7/28/2014

7/28/2014 7/28/2014

7/23/2014 7/24/2014

5/5/2014 5/5/2014

7/24/2014 7/25/2014

Page 5


Ameren Decatur MGP - Remedial Action

Project Week No.: One


Actual DatesProjected Dates

Temporary Structure Shipped - 3 days

Ventilation Components Shipped - 2 days

Pac-Van Office Demobilized - 1 day

Traffic Control Signage Removed - 1 day

Sidewalk Reopened - 1 day

Utilities Disconnected - 2 days

WWPT System Removed - 2 days

Site Demobilization


Excavation Equipment Demobilized - 2 days

LP Tank Removed - 1 day

Facilities Removed - 2 days


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AS OF JANUARY 24, 2014 WEEK 2


Page 7





Subcontractor begins the removal of the former Ameren communication tower by removing the antennae

The pole was then cut in sections and lowered to the ground using a second crane


Page 8





The bottom two-thirds of the communication pole is lowered to the ground

Final cut at the base of the former radio communication pole


Page 9





Phase I excavation progress on January 22

Mid-week progress along the stormwater culvert, the first of two surface inlets has been removed


Page 10





Excavation progress as of Janury 24

Soil conditions below the culvert are shown well in the photo with the coal layer at the base of the excavation

Documents

Week 2 Jan 20 - 24 2014