RevSECTION_02050.pdf

Mt Hebron Barracks Complex 45

CLEARING/GRUBBING/DEMOLITION/DEBRIS REMOVAL 02050 (Amendment 1)

SECTION 02050

CLEARING/GRUBBING/DEMOLITION/DEBRIS REMOVAL

PART 1 - GENERAL

1.01 DESCRIPTION

A. Clearing, grubbing, demolition, backfill, hazardous material disposal and debris removal is required in the new building area. Remove vegetation, stumps, septic tanks, building foundations, buildings, walkways, fencing, power poles, utility boxes, fuel tanks,

1.02 QUALITY ASSURANCE AND CERTIFICATION

A. In addition to complying with all pertinent codes and regulations, comply with the requirements of those insurance carriers providing coverage for this work.

Hazardous material components of building to be demolished have been surveyed and identified in two reports from Asbestos Science Technologies, INC. The reports are included in Part 5 of this specification. Demolition and disposal of building components must be performed by a contractor certified in hazardous substance removal.

1.03 JOB CONDITIONS

A. Disposition of material:

1. Title to materials:

a. Title to all materials to be removed, except as specified otherwise, is vested in the Contractor upon receipt of notice to proceed. The Owner will not be responsible for the condition or loss of, or damage to, such property after notice to proceed.

2. Reuse of materials and equipment:

a. Carefully remove and store materials and equipment indicated to be reused or relocated to prevent damage, and reinstall as the work progresses.

B. Cleanup:

1. Debris and rubbish:

a. Contain, remove and transport debris and rubbish in a manner that will prevent spillage to adjacent areas.

2. General:

b. Use all means necessary to protect existing structures designated to remain and, in the event of damage, immediately make all repairs and replacements necessary to the approval of the Engineer at no additional cost to the Owner.

C. UTILITY SERVICES

1. The Contractor shall arrange with the utility provider to shut off utilities when necessary.

Mt Hebron Barracks Complex 46

2. Cut off pipe or conduit for utilities to be abandoned or discontinued a minimum of 24-inches below grade, unless otherwise noted on the plans. Cap, valve, or plug and seal the remaining portion of pipe or conduit.

3. At no times shall the Contractor interrupt existing utilities that serve occupied or active facilities, except when authorized in writing to do so by the Owner’s

Representative.

4. The Contractor shall provide all shoring, sheeting and bracing required to retain excavations and to prevent slides and cave-ins. Refer to General Conditions for related paragraphs concerning safety precautions and operations for construction.

5. Perform all operations to avoid breakage, marring, bending or other damage to existing structures or utilities, which are to remain. Brace sides of excavation and shore structures when needed for stability.

6. Explosives: The use of explosives will not be permitted.

7. If damage is done to any adjacent facilities caused by demolition operations, the

Contractor shall promptly repair the damage. All costs for repair of damaged facilities shall be at the Contractor’s expense.

PART 2 – PRODUCTS - Not Applicable

PART 3 - EXECUTION

3.01 SITE INSPECTION

A. Prior to any clearing, grubbing and debris removal work, carefully inspect the site and determine the extent of work involved.

B. Report any discrepancy to the Engineer immediately, including any obstructions which are not noted or shown on the plans or described herein. Protect such facilities until further direction is received from the Owner’s Representative.

Additional work required due to unforeseen conditions shall be performed as directed by the Owner’s Representative and will be paid for as extra work in accordance with the General Conditions.

3.02 COORDINATION AND SCHEDULING

A. Coordinate work with the Contracting Officer.

3.03 SAFETY

A. All work shall conform to pertinent OSHA regulations and to other State and local codes and ordinances as applicable.

3.04 REMOVAL OF DEBRIS

A. Remove all debris from the site and leave the site in a neat and orderly condition and legally dispose of off the project site at an approved disposal site

Mt Hebron Barracks Complex 46a

B. Septic tanks shall be pumped and thoroughly rinsed prior to demolition and removal of concrete debris. Septage and rinse water shall be properly disposed of at an approved septage receiving station.

3.05 SITE RESTORATION

A. Completely fill and compact below grade areas and voids resulting from structure demolition operations with onsite soil materials.

B. Uniformly rough grade areas of demolished construction to a smooth surface, free from irregular surface changes. Provide a smooth transition between adjacent grades and new grades.

PART 4 – MEASUREMENT AND PAYMENT

4.01 Payment shall include all labor, materials, and supervision for the clearing, grubbing, and demolition required onsite as described in the Schedule of Items and as specified and shown on the Plans and shall be made as a percentage of completion at the time of progress payment application.

PART 5 – HAZARDOUS MATERIALS REPORT

Asbestos Science Technologies, Inc.

P.O. Box 505

Bangor, CA 95914

530-518-0934 email - astinc17@yahoo.com

LEAD INSPECTION

A visual inspection was conducted of the Mt. Hebron buildings site by Laurie L. Warren -

Certified Lead Project Monitor # 24602 Exp. 6/27/2014. The lead sample results are as follows:

Note: The items listed below are subject to being stabilized by a lead abatement worker/supervisor.

(1) All exterior green paint on all buildings which is peeling shall be scraped prior to demolition activities. This does not include the white painted flaking areas. The lead samples taken were sent to Schneider Laboratories at 2512 W. Cary Street in Richmond

Virginia for analysis using Atomic Absorption Spectroscopy. The analysis was in accordance with EPA 7000 B Methodology using SLI P26 A14. Only two of the samples exceeded the established Housing and Urban Development and (U.S. EPA) criteria of 1.0 milligrams per centimeter squared, 5000 parts per million or 0.5% lead by weight for the definition of Lead Based Paint.

This lead sample report prepared by Laurie L. Warren - Certified Lead Project Monitor # 24602 -

Exp. 06/27/2014

ASBESTOS INSPECTION

An inspection was conducted at the Mt. Hebron Sites in Mt. Hebron, Ca. in Nov. 7, 2012 by

Laurie Warrens - Certified Site Surveillance Technician (C.S.S.T. 12-4934) The inspection of the mailto:astinc17@yahoo.com

Mt Hebron Barracks Complex 46b facilities were conducted in accordance with EPA AHERA standards. All suspect material was touched and sampled to determine asbestos content as well as friability. All homogeneous areas of friable and non-friable ACM were identified. This inspection was conducted in accordance with

EPA, CAL/OSHA and local regulatory guidelines. Sample results are attached.

Samples were sent to Schneider laboratories in Richmond, Virginia for analysis. Asbestos content shall be determined using the method specified in Appendix A, Subpart F, 40 CFR Part 763, Section 1, Polarized Light Microscopy. If the asbestos content is less than 10%, verification shall be made using the point counting method specified in Appendix A, Subpart F, 40 CFR Part 763, Section 1,7,2,4 Polarized Light Microscopy, Quantification of Asbestos Content.

There were several positives samples found which are listed here. See map for numbering of buildings.

Residence 2 positive results

(1) All drywall/joint compound is considered friable asbestos containing building material.

(2) All baseboard mastic is considered non-friable asbestos containing building material.

(3) All exterior siding is asbestos containing non-friable building material and is homogeneous to the other samples taken on the other buildings.

Residence 3 positive results

(1) All exterior siding is considered to be non-friable asbestos containing building material.

Residence 4 positive results

(1) All drywall/joint compound is considered friable asbestos containing building material.

Residence 4 is a wood structure.

Residence 5 positive results

(1) All drywall/joint compound is considered friable asbestos containing building material.

(2) All exterior siding is considered non-friable asbestos containing building material.

Shed and garage

(3) All exterior siding on the shed is considered non-friable asbestos containing building material.

Note: In order to determine if drywall/joint compound can be non-friable, the laboratory will need to point count the samples to see if they can be below 1% asbestos by weight as a composite.

All listed materials shall be abated by a Certified Asbestos Abatement contractor with a current

DOSH registration through the Department of Occupational Safety and Health.

All other materials were negative.

Asbestos samples were taken by Laurie Warren – Certified Site Surveillance Technician C.S.S.T.

# 12-4934. This report was taken from the field notes provided by Laurie Warren OSHA # 12-

**END OF SECTION 02050**