Attachment 1 - 02072Demolition20120510.pdf

02072 Page 1 of 3

SECTION 02072

DEMOLITION

Date May 10, 2012

1. GENERAL: Demolition and Removal of the residential house

540950B013, approximately 10 miles from Nunn, Colorado on Weld County Road 114, address 18908 WCR 114.

A. Inclusions are

1. One story ranch style house with 1020 gross square feet, a partial basement of 870 square feet, a crawl space of 150 square feet, and a wooden exterior deck.

a. House and exterior deck to be removed from site and disposed of properly by Contractor or salvaged at the Contractor’s discretion.

b. Basement exterior concrete walls.

1. Coatings of black fibrous tar which contains asbestos. Asbestos Samples were taken by Windy Ridge Enterprises and tested for asbestos, please see the attached reports. Contractor is to demolish the basement concrete walls and any concrete with the black coating needs to be wrapped to avoid any ACM becoming airborne. The Waste Management Landfill near Ault is anticipated to accept the concrete with the coating as non-friable ACM.

2. Exterior tan granular plaster with yellow paint on the West side of the basement wall contains a trace of Asbestos. Please see attached reports.

Contractor is to demolish these materials as ACM and dispose of properly.

c. Basement exterior concrete walls and slabs without the black coating can be pushed into the footprint of the house and covered with a minimum of 1 foot of soil from the surrounding site. Fill dirt is to be compacted by earth moving equipment until no wheel or track settlement is visibly noticed. Six inches of topsoil is to be placed on top of any disturbed areas or concrete for seeding by the Government.

d. Crawl space and deck foundation is to be removed to 12 inches below the adjacent grade, and then the disturbed area is to have 6 inches of fill dirt and 6 inches of topsoil placed.

e. Roof shingles and felts were sampled for asbestos snd the tests showed none, but the sealants around the skylights and roof penetrations were sampled and the tests showed some. Please see the attached reports.

ACM will need to be appropriately removed and disposed of at an approved landfill for ACMs.

f. Older electrical wiring insulation was sampled and

02072 Page 2 of 3 tested for asbestos, which showed no asbestos.

2. Pump out septic tank and abandon in place with pipes and leach field. Fill pipe openings with concrete. Fill septic tank with sand wetted in place.

3. Fill out and apply for a Colorado Demolition Permit, attached. A copy of the Asbestos Inspection done by Windy Ridge Enterprises dated February 7, 2012 is attached for your information. You will need to contact Windy Ridge Enterprises to attain their signature on the Demolition Permit. No friable asbestos materials was noted.

B. Exclusions are

1. Existing garage to remain undisturbed.

2. Existing electrical service to the house has been disconnected by the utility company, High West, but the well and electrical shed will remain connected.

3. Existing fences and gates are to remain undisturbed.

C. Technical References are the attached electronic files:

1. 01330v20150510v3.pdf

2. 12004384 Amended Report 20120501.pdf

3. AtticSpace20111219.JPG

4. Basement16 20111219.JPG

5. Demolition Permit Application20111223.doc

6. House 18908 floor sketch 2010.pdf

7. NE Elevation 20111219.jpg

8. NunnAsbestos supplemental 20120501.pdf

9. NunnMap supplemental inspection 20120501.png

10. SE Elevation 7-6-10 021.jpg

11. Second Samples 12004384 COC 20120501.pdf

12. SouthElev20111219.JPG

13. SSE Elevation 20111219.jpg

14. WestElevNorth20111219.JPG

15. WestElevSouth20111205.JPG

2. MATERIALS:

A. Fill dirt supplier is to be provided with sieve analysis of material.

B. Topsoil supplier is to be provided with sieve analysis of material.

3. EXECUTION:

A. General:

1. Beginning of work or installation of components means acceptance of existing conditions by the Contractor.

2. The Contractor shall coordinate with the Location

Monitor or Contracting Officer's Technical Representative (COTR) for the location of the construction boundaries, dump truck paths, bin

02072 Page 3 of 3 locations, and any questions that they may have.

B. Manifest of the disposal of the ACM types will be submitted by the Contractor before the final inspection.

B. Manifest of the disposal of the ACM types will be submitted by the Contractor before the final inspection.