Attachment G - SOW_R1.docx

Scope of Services Golden Meadow Plant Materials Center Main Building Demolition and Site Preparation, Galliano, Lafourche Parish, LA.

BACKGROUND:

On August 29, 2021, extensive damage was incurred at the Golden Meadow Plant Materials Center from hurricane Ida. The main office building requires demolition and disposal. The work consists of demolition of foundations; piles and slabs-on-grade; disconnecting and demolition of identified utilities; removing demolished materials from site; site preparation; and gravel driveway.

Part 1 GENERAL

1.1 SPECIAL PROVISIONS

A. The Contractor shall furnish the necessary personnel, material, tools, scaffolding, temporary supports equipment, services, and facilities (except as otherwise specified), to perform the Statement of Work and related Specifications referenced in Section 1.2.

B. The Contractor is notified that the PMC employees shall continue to work near the project site throughout the entire duration of the project work. The Contractor shall maintain clear access to owner parking, and to the other buildings located adjacent to the main building. The Contractor is required to put up fencing or other protection to keep unauthorized personnel from the work area.

C. All work required for this demolition shall comply with local and state building codes as well as with other regulatory agency requirements including, but not limited to, OSHA, EPA, LDEQ, and other agencies having jurisdiction.

D. Demolition of designated structures; demolition of foundations; piles and slabsongrade; disconnecting and demolition of identified utilities; removing demolished materials from the site; protection of items to remain as indicated in section 3.5 - SCHEDULES.

E. No hazardous materials have been determined to be present on the site or as part of the building demolition. However, should the Contractor encounter suspicious material, the Contractor shall stop work that disturbs such suspicious material and notify the PMC Manager and the Contracting Officer in writing and await further directions.

F. The Contractor shall initiate, maintain, and supervise all safety precautions and programs associated with this Contract. The Contractor shall take all necessary steps to prevent injury to persons or damage to the work itself or material or equipment associated with the work. The Contractor shall safeguard against damage to other properties on site adjacent to the work.

G. Contractor shall verify all existing conditions prior to beginning of work. It is the responsibility of the Contractor to field verify existing conditions prior to bid to ascertain limits of demolition and construction; include all associated costs in the bid.

H. The Contractor shall develop and maintain a stormwater pollution prevention plan, as required.

I. Existing on-site septic system sewage treatment plant will remain in place. Contractor shall take all necessary precautions to protect this system during the demolition of the main building.

J. The water service line to the main building shall remain in place.

1.2 RELATED SPECIFICATIONS

A. Construction Specification 3 Structure Removal B. Construction Specification 5 Pollution Control C. Construction Specification 7 Construction Surveys D. Construction Specification 25 Rockfill E. Construction Specification 95 Geotextile F. Material Specification 592 Geotextile

1.3 SUBMITTALS

A. Shop Drawings: Show location of salvageable items; location and construction of barricades, fences, and temporary work.

B. Project Record Documents: Accurately record actual locations of capped utilities and subsurface obstructions.

C. Project Schedules: Provide to the COR any new updated demolition, material and construction sequences and schedules.

D. Contractor Means and Methods: Provide the means of the labor, materials, temporary structures, tools, and construction equipment, and the manner and time of their use, necessary to accomplish the result intended by this Contract.

E. Throughout the course of this Contract, it is the responsibility of the Contractor to receive written approval from the Contracting Officer allowing deviations from this scope of work.

F. All submittals shall use ENG Form 4025-R.

1.4 SCHEDULING

A. The Contractor shall be responsible for proper coordination and sequencing of the work through project duration.

B. Perform work between the hours of 7:30 – 4:30, six days per week.

C. Prior to any excavation or earthwork, the Contractor shall consult "one-call" services to locate existing underground utilities.

2 MATERIALS

2.1 Fine Aggregate. Having material predominately passing the No. 4 (4.75 mm) sieve similar to a 610 gravel. Conforming to standard specification Louisiana DOTD Standard Specifications for Roads and Bridges, 2016 edition.

2.2 Geotextile Type: Woven and shall meet or exceed the properties for Class I as listed in Table 1 of Material Specification 592, Geotextile.

3 EXECUTION

3.1 PREPARATION

A. Provide, erect, and maintain temporary barriers and security devices where needed, including warning signs and lights, and similar measures, for protection of the public, Plant Material Center’ employees, Contractor's employees, and existing improvements to remain.

B. Protect existing landscaping materials, trees, and appurtenances, and structures which are not to be demolished. The Contractor shall repair to pre-existing or better condition all damage caused as the result of this work to areas not part of the demolition.

C. Prevent movement or settlement of adjacent structures. Provide temporary bracing and shoring as needed.

D. Mark location of utilities.

3.2 DEMOLITION REQUIREMENTS

A. Conduct demolition to minimize interference with adjacent structures. Always maintain protected ingress and egress routes from adjacent structures.

B. Cease operations immediately if adjacent structures appear to be in danger. Notify the Owner and the Contracting Officer Representative (COR). Do not resume operations until directed by the COR.

C. Obtain written permission from adjacent property owners when demolition equipment will traverse, infringe upon or limit access to their property.

D. Complete the scope of work according to the approved schedule.

E. Supply all labor, material, tools, scaffolding, temporary supports and equipment required to complete the demolition and proper disposal as detailed within this scope of work.

F. Enforce any precautionary measures required to ensure the work is safe and protected. Greenhouses adjacent to the project site will be in operation during the demolition. It is the responsibility of the contractor to coordinate demolition activities with the Plant Material Center (PMC) Manager.

G. Provide the proper amount of qualified personnel to manage the scope.

H. Provide all required training and personal protection equipment.

I. The Contractor is responsible for all the temporary power required to complete this work.

J. The Contractor must obtain all permits required to complete this work.

K. Reference omitted.

L. Prior to demolition of the concrete slab, the Contractor shall determine the location of any utilities in the area of work. It is the Contractor’s responsibility to locate existing utilities in or under the slab. The Contractor shall assume full responsibility for repairing, replacing, or restoring any utilities damaged during the project. Should locations of existing utilities hinder work, contact the Contracting Officer Representative prior to proceeding.

3.3 DEMOLITION

A. Identify, disconnect, remove, and cap designated utilities within demolition areas. Any utility or service encountered during construction shall be protected by the Contractor. Any repairs necessary due to damage to same by the Contractor shall be repaired at no additional cost to the owner.

B. PMC Manager shall be notified 72 hours prior to any power or water outages required by electrical or plumbing demolition. Contractor shall be responsible for disposal of all removed electrical and plumbing devices, unless otherwise directed by the Contracting Officer.

C. Sprinkle work with water to minimize dust. Provide hoses and water connections for this purpose.

D. The Contractor is responsible for removal of all waste and debris generated as the result of this demolition work. The Contractor shall coordinate the removal and proper legal disposal of all such rubbish and debris. The Contractor shall perform daily cleaning of the construction site. Do not burn or bury materials on site.

E. Demolish main building as described below.

1) Remove and properly dispose off-site all wall, roof, and floor materials.

2) Remove and properly dispose off-site all doors, windows, and frames.

3) Remove and properly dispose off-site hydraulic elevator system and support components. Dispose or recycle oils and hazardous materials in compliance with the guidelines and regulations of local, state, and federal governments

4) Remove and properly dispose off-site all electrical fixtures, outlets, panels, mechanical ductwork, plumbing fixtures, drains and piping.

F. Demolish main building substructure components as described below.

a. Cut off or chip treated wood pilings two feet below existing soil grade.

b. Remove and dispose of all concrete slabs on grade and reinforcement steel. Excavation shall include the removal and disposal of material encountered to subgrade elevations 14 inches below natural grade.

c. Remove and dispose of all stairs, landings, and bracing members.

G. Remove and dispose off-site all concrete piles (approximately 6 feet long and embedded 2 feet) under the emergency generator.

3.4 CONSTRUCTION

A. Backfill ruts and depressions caused by demolition to maintain site grades, surface drainage and contours to prevent ponding.

B. All clearing, filling, and compaction operations shall be accomplished as per Contractor’s "means and methods".

C. Due consideration should be given to the site conditions in determining when to continue work following rain events. The Contractor may submit a written request for a modification for extension of performance time due to unusually severe weather.

D. Install gravel parking lot as described below. Referenced standard specification shall be the Louisiana DOTD Standard Specifications for Roads and Bridges, 2016 edition.

1) Proof roll sub-grade and then install a lower layer of geotextile filter fabric (Mirafi 600x or approved equal).

2) Place 6 inches of structural fill compacted to 95% of its maximum dry density near optimum moisture in accordance with ASTM D 1557. Then install an upper layer of geotextile filter fabric (Mirafi 600x or approved equal).

3) Install geogrid (Tensar BX 1200 or approved equal). Then place 8 inches of compacted crushed limestone (#610 gradation) compacted to 95% per LaDOTD standard specifications over the geogrid.

4) Establish positive drainage across gravel surface. Grade gravel so surface water drains to the North towards Airport Road ditch.

5) Parking lot detail

E. Install ¾-inch hose bib on 3-foot riser located at the end of the existing watermain. Provide insulation as required for freeze protection. Any wastewater and cold-water piping exposed to outdoors shall also be insulated.

3.5 SCHEDULES

A. Remove and store on site in government-provided shipping containers:

1) 6-shelf metal bookshelves, 4 each.

2) 3-shelf metal bookshelves, 1 each.

3) 4-drawer metal filing cabinets, 2 each.

4) Locking metal laboratory (plant herbarium) cabinets, 1 each.

5) Laboratory desks, 2 each.

6) Laboratory desk chairs, 4 each.

7) Aerial map cabinet.

8) Miscellaneous laboratory desktop equipment (e.g., microscopes, small weight scale).

9) Residential washer and dryer.

10) Small ice maker.

11) Assorted laboratory chemicals.

B. Remove and store on site in Owner designated on-site storage areas:

1) One 5-ton A/C package unit. No person maintaining, servicing, repairing, or disposing of an appliance or industrial process refrigeration may knowingly vent or otherwise release into the environment any refrigerant from such appliances.

2) One emergency generator. Diesel and other generator fuels should be stored and transported in approved containers that are properly designed and marked for their contents and vented.

3) Automatic Transfer Switch.

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