EIE326-02_61_13_AM_5.pdf

Dormitory (168 Rm) EIE326

Section 02 61 13 Page 1

SECTION 02 61 13

EXCAVATION AND HANDLING OF CONTAMINATED MATERIAL

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM D 5434 (2003) Field Logging of Subsurface

Explorations of Soil and Rock

AM#5...

ASTM D 1556(2000) Density and Unit Weight of Soil in Place by the Sand-Cone Method

ASTM D 1557(2002e1) Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3) (2700 kN-m/m3)

ASTM D 2167(1994; R 2001) Density and Unit Weight of Soil in Place by the Rubber Balloon Method

ASTM D 2487(2006) Soils for Engineering Purposes (Unified Soil Classification System)

ASTM D 422(1963; R 2002e1) Particle-Size Analysis of Soils

ASTM D 6938(2007a) Standard Test Method for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)

ASTM D 698(2007e1) Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/cu. ft. (600 kN-m/cu. m.))

...AM#5

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2008; Errata 1-2010; Changes 1-3 2010;

Changes 4-6 2011; Change 7 2012) Safety and Health Requirements Manual

DOD QSM (2010) Department of Defense Quality Systems

Manual for Environmental Laboratories

STATE OF ALASKA ADMINISTRATIVE CODE (AAC)

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18 AAC 75 (2008) Oil and Other Hazardous Substances

Pollution Control

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1926 Safety and Health Regulations for

Construction

40 CFR 302 Designation, Reportable Quantities, and

Notification

1.2 MEASUREMENT AND PAYMENT

1.2.1 Measurement

Measurement for contaminated soil requiring excavation, transportation and storage as defined by paragraph DESCRIPTION OF WORK is based on the assumption that POL contaminated soil may be encountered during excavation activities. Measurement shall be based on the number of cubic yards excavated.

1.2.2 Payment

1.2.2.1 Excavation, Transportation, and Stockpiling

Compensation for construction of temporary stockpiles, post excavation sampling, and characterization sampling of those stockpiles shall be included in the cost. The contractor shall assume the total quantity identified in the bid schedule of contaminated soil may be present on site.

The costs for any special safety precautions that may be required in order to perform sampling, excavation, storage, and transport of potentially hazardous material should also be included.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-03 Product Data

Work Plan; G

Work Plan shall be submitted to the AM#5... Government at least 30 calendar days ...AM#5 prior to start of excavation. No work at the site, with the exception of site inspections and surveys, shall be performed until the Work Plan is approved. The Contractor shall allow 14 calendar day in the schedule for the Government's review.

No adjustment for time or money will be made if resubmittals of the Work Plan are required due to deficiencies in the plan. The contractor shall contact the USACE Materials Section (753-2691) for assignment of a Project Number and include that number in the Work Plan. In addition, the Work Plan shall include:

Section 02 61 13 Page 3

a. Schedule of activities.

b. Method of excavation and equipment to be used.

c. Brief summary of sample collection method.

d. Proposed laboratory, with ADEC and USACE validations

e. Shoring or side-wall slopes proposed, if necessary.

f. Dewatering plan, if necessary.

g. Storage methods and locations for liquid and solid contaminated material.

h. Decontamination procedures.

i. Spill contingency plan.

This work plan may be included with or amended to the Sampling and Analysis Plan required in Section 31 09 20.00 29 FIELD SCREEN TESTING OF SOILS FOR

POL CONTAMINATION.

SD-06 Test Reports

Closure Report; G

7 copies of the Closure Report within 30 calendar days of work completion at the site. Report shall include all test results.

1.4 REGULATORY REQUIREMENTS

1.4.1 Permits and Licenses

The Contractor shall obtain required federal, state, and local permits for excavation and storage of contaminated material. Permits shall be obtained at no additional cost to the Government.

1.4.2 Air Emissions

Air emissions shall be monitored and controlled in accordance with Section

01 57 20.00 10 ENVIRONMENTAL PROTECTION.

1.5 DESCRIPTION OF WORK

The work shall consist of excavation and temporary storage of contaminated soil as specified in the Contaminated Soil CLIN, including the collection of stockpile characterization and post excavation samples (per 18 AAC 75 requirements). The Chemical Data Report does not indicate that significant contamination is present on site. However, isolated pockets of contaminated soil may be encountered. Section 31 09 20.00 29 FIELD SCREEN TESTING OF SOILS FOR POL CONTAMINATION details the field screening procedures and frequency. This Specification takes effect once the field screening criterion is exceeded, or other evidence suggests the presence of additional contaminants (such as the Chemical Data Report).

Section 02 61 13 Page 4

Subsurface conditions are shown in the Geotechnical Findings Report. The Contractor shall submit a Work Plan as specified in the Submittals paragraph. The Contracting Officer shall be notified within 24 hours, and before excavation, if contaminated material is discovered that has not been previously identified or if other discrepancies between data provided and actual field conditions are discovered.

1.6 CHEMICAL TESTING

Required sampling and chemical analysis shall be conducted in accordance with DOD QSM and 18 AAC 75.

1.7 SCHEDULING

The Contractor shall notify the Contracting Officer 24 hours prior to the start of excavation of contaminated material. The installation shall be responsible for contacting regulatory agencies in accordance with the applicable reporting requirements.

PART 2 PRODUCTS

2.1 BACKFILL

The Contractor shall obtain approval for backfilling from the Contracting Officer in writing prior to placement of any backfill. Backfill shall be placed in accordance with other sections of these specifications, as appropriate. Excavated materials conforming to specification requirements for materials to be used for fills, backfilling, grading or topsoiling, may be utilized provided there are no indications of contamination as defined herein.

2.2 SPILL RESPONSE MATERIALS

The Contractor shall provide appropriate spill response materials including, but not limited to the following: containers, adsorbents, shovels, and personal protective equipment. Spill response materials shall be available at all times when contaminated materials/wastes are being handled or transported. Spill response materials shall be compatible with the type of materials and contaminants being handled.

PART 3 EXECUTION

3.1 EXISTING STRUCTURES AND UTILITIES

No excavation shall be performed until site utilities have been field located. The Contractor shall take the necessary precautions to ensure no damage occurs to existing structures and utilities. Damage to existing structures and utilities resulting from the Contractor's operations shall be repaired at no additional cost to the Government. Utilities encountered that were not previously shown or otherwise located shall not be disturbed without approval from the Contracting Officer.

3.2 CONTAMINATED MATERIAL REMOVAL

3.2.1 Excavation

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Areas of contamination as indicated by field screening results shall be excavated to the depth and extent shown on the drawings and not more than 1 foot beyond the depth and extent shown on the drawings unless directed by the Contracting Officer. Excavation shall be performed in a manner that will limit spills and the potential for contaminated material to be mixed with uncontaminated material. An excavation log describing visible signs of contamination encountered shall be maintained for each area of excavation.

Excavation logs shall be prepared in accordance with ASTM D 5434.

3.2.2 Shoring

If workers must enter the excavation, it shall be evaluated, shored, sloped or braced as required by EM 385-1-1 and 29 CFR 1926 section 650.

3.2.3 Dewatering

Surface water shall be diverted to prevent entry into the excavation. No dewatering shall be performed without prior approval of the Contracting Officer.

3.3 CONTAMINATED MATERIAL STORAGE

Contaminated soil that exceeds the screening limits shall be segregated in accordance with Eielson Air Force Base policies. Soil exhibiting field screening readings from 20ppm to 99ppm shall be placed in an ADEC compliant temporary stockpile and may be re-used on site upon receipt of analytical results showing it not to be contaminated above the applicable ADEC limit.

Soil exhibiting field screening readings of greater than 100ppm shall be stored in an ADEC compliant temporary stockpile until final disposition (which is the responsibility of the project).

3.3.1 Stockpiles

Stockpiles shall be constructed to isolate stored contaminated material from the environment. The maximum stockpile size shall be 100 cubic yards. For soils exhibiting field screening readings from 20ppm to 99ppm, the stockpile locations may be placed on the project site where convenient for the Contractor given the following conditions: that the location is consistent with the requirements in 18 AAC 75.370 and that the stockpiles are not located in any type of drainage swale. Soils exhibiting field screening readings greater than 100ppm shall be removed from the site and stockpiled at the Contaminated Soil Stockpile Location, see Location and Vicinity Map, sheet LV1.01. The stockpiles at the Contaminated Soil location shall be segregated and identified by project number. Stockpiles shall be constructed to include:

a. A chemically resistant geomembrane liner free of holes and other damage. Non-reinforced geomembrane liners shall have a minimum thickness of 10 mils and be in accordance with 18 AAC 75.

b. Geomembrane cover free of holes or other damage to prevent precipitation from entering the stockpile. Non-reinforced geomembrane covers shall have a minimum thickness of 6 mils. Scrim reinforced geomembrane covers shall have a minimum weight of 26 lbs. per 1000 square feet. The cover material shall be extended over the berms and anchored or ballasted to prevent it from being removed or damaged by wind.

Section 02 61 13 Page 6

c. Berms surrounding the stockpile, a minimum of 12 inches in height. Vehicle access points shall also be bermed.

d. The liner system shall be sloped to allow collection of leachate. Storage and removal of liquid which collects in the stockpile, in accordance with paragraph Liquid Storage.

3.4 SAMPLING

3.4.1 Post Excavation Sampling

The Contracting Officer shall be present to inspect the removal of contaminated material from each site. After material suspected of being contaminated has been removed or the project limits have been met, the excavation shall be examined for evidence of contamination via field screening and/or analytical techniques. Excavation of additional material shall be as directed by the Contracting Officer. Samples shall be collected and analyzed for the relevant compounds of concern at a frequency of one per 250 square feet from the bottom of the excavation and one per 100 linear feet of the side walls or as directed by the Contracting Officer. A minimum of one sample shall be collected from the bottom of the excavation. Based on test results, the Contractor shall propose any additional excavation which may be required to remove material which is contaminated above action levels specified in 18 AAC 75. Additional excavation shall be subject to approval by the Contracting Officer. Locations of samples shall be marked in the field and documented on the as-built drawings.

3.4.2 Sampling of Stored Material

Samples of stockpiled contaminated material shall be collected at a frequency of two per the first 50 cubic yards and one per every 50 cubic yards yards thereafter. Samples shall be tested for the appropriate compounds of concern. Samples shall be collected in accordance with 18 AAC 75 and analyzed in accordance with DOD QSM.

Stored material with contaminant levels that exceed the action levels specified in 18 AAC 75 shall be left on site, in approved stockpile locations. The installation shall be responsible for treatment and disposal.

3.5 SPILLS

In the event of a spill or release of a hazardous substance (as designated in 40 CFR 302), pollutant, contaminant, or oil (as governed by the Oil Pollution Act (OPA), 33 U.S.C. 2701 et seq.), the Contractor shall notify the Contracting Officer immediately. If the spill exceeds the reporting threshold, the Contractor shall follow the pre-established procedures as described in the SSSHP for immediate reporting and containment. Immediate containment actions shall be taken to minimize the effect of any spill or leak. Cleanup shall be in accordance with applicable federal, state, and local regulations. As directed by the Contracting Officer, additional sampling and testing shall be performed to verify spills have been cleaned

up. Spill cleanup and testing shall be done at no additional cost to the Government.

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3.6 CLOSURE REPORT

7 copies of a Closure Report shall be prepared and submitted within 14 calendar days of completing work at the site. The report shall be labeled with the contract number, project name, location, date, name of general Contractor, and the Corps of Engineers District contracting for the work.

The Closure Report shall include the following information as a minimum:

a. A cover letter signed by a responsible company official certifying that all services involved have been performed in accordance with the terms and conditions of the contract documents and regulatory requirements.

b. A narrative report including, but not limited to, the following:

(1) site conditions, ground water elevation, and cleanup criteria;

(2) excavation logs;

(3) field screening readings;

(4) quantity of materials removed from each area of contamination;

(5) quantity of water/product removed during dewatering;

(6) sampling locations and sampling methods;

(7) sample collection data such as time of collection and method of preservation;

(8) sample chain-of-custody forms; and

(9) source of backfill.

c. Copies of all chemical and physical test results.

d. Copies of all manifests and land disposal restriction notifications.

e. Copies of all certifications of final disposal signed by the responsible disposal facility official.

f. Waste profile sheets.

g. Scale drawings showing limits of each excavation, limits of contamination, known underground utilities within 50 feet of excavation, sample locations, and sample identification numbers.

On-site stockpile, storage, treatment, loading, and disposal areas shall also be shown on the drawings.

h. Progress Photographs. Color photographs shall be used to document progress of the work. A minimum of four views of the site showing the location of the area of contamination, entrance/exit road, and any other notable site conditions shall be taken before

Section 02 61 13 Page 8 work begins. After work has been started, activities at each work location shall be photographically recorded weekly. Photographs shall be a minimum of 3 x 5 inches and shall include:

(1) Soil removal and sampling.

(2) Dewatering operations.

(3) Unanticipated events such as spills and the discovery of additional contaminated material.

(4) Contaminated material/water storage, handling, treatment, and transport.

(5) Site or task-specific employee respiratory and personal protection.

(6) Fill placement and grading.

(7) Post-construction photographs. After completion of work at each site, the Contractor shall take a minimum of four views of each excavation site.

A digital version of all photos shown in the report shall be included with the Closure Report. Photographs shall be a minimum of 3 inches by 5 inches and shall be mounted back-to-back in double face plastic sleeves punched to fit standard three ring binders. Each print shall have an information box attached. The box shall be typewritten and arranged as follows:

Project Name: Direction of View:

Location: Date/Time:

Photograph No.: Description of View:

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