Forest_Service_Site_Scope_of_Work_08072015.pdf

Forest Service Site Scope of Work 08072015.doc

U.S. Department of Agriculture United States Forest Service

Region 5 Regional Office, Mare Island CA

Scope of Work (SOW) for On-Site Solar Photovoltaic (PV)

Carport(s) and Roof Mounted System(s)

1. About the USFS Mare Island Facility

Facility Address: Mare Island, 1323 Club Drive, Vallejo, California 94592 Name of Township: Vallejo, CA Original Purpose of Building: Naval Communications Center Utility: Island Energy (subsidiary of Pittsburg [California] Power Company) Area available for PV Installation:

Main Building Parking Lot

Annex Building Parking Lot

Main Building Roof

Annex Building Roof

Overflow Parking Area (near Annex Building)

2. Project Overview

2.1 Project Background: At the request of the Forest Service Regional Office

Engineering department, a conceptual design/study for a Photovoltaic System and Resurfacing of the Parking Lot was procured in 2013. The design incorporated several key issues such as consideration for water quality, storm water management, minimizing asphalted areas and increasing biodiversity of the surrounding areas with an overall effect to improve the Lot’s environment and safety (such as creating better traffic flow). The Regional Office may request additional funds for improving the Parking Lot from the Washington Office. And, any information from this 2013 Study relevant to this requirement should be in the Forest Service’s 100% Schematic Design, prepared by a local Architecture firm, Siegel and Strain. Please refer to Site Plan in schematic design documents either enclosed here or provided separately in the Forest Service CloudVault.

2.2 The United States Forest Service (USFS or FS) desires a photovoltaic system(s) with potential roof and/or carport solar arrays under a Power Purchase Agreement at the Pacific Southwest Region Office Site located on Mare Island, in Vallejo, California. The site is presently served by two existing electric meters on two separate utility accounts. Solar arrays shall be installed to offset one-hundred percent (100%) of the projected electrical use of both existing accounts. One existing meter serves the Main Building and the second existing meter serves a metal storage building commonly referred to as the “Annex.”

2.3 Main Office Building and Main Parking Area: The solar array shall be designed to produce one-hundred percent (100%) of projected kilowatt-hours (kWh) consumption for this site, as detailed below in Section 5.

2.4 Storage Building (Annex) Roof and Adjacent Parking Area: The Offeror may propose a rooftop system to go on to the standing seam metal roof and/or a covered parking structure located in the small parking lot of this building. If a parking structure PV system is proposed, it shall have clearance for larger fire trucks. (See Section 3.1.8, below). USFS shall approve any proposed clearance heights. The 2013 annual usage (kWh) of approximately 38,000 kWh per year will be used as a baseline. The Forest Service desires to have this utility integrated into the Main Building’s feed and have the bill and meter for this site removed as an option. Please refer to Section 6.7, below.

2.5 The schematic design and specifications provided by the Forest Service’s contracted Architecture firm (Siegel and Strain) are meant as a proof of concept to showcase the ideal solution to the Forest Service, only. (Please refer to the Forest Service CloudVault for these documents). Contractor’s engineers are to generate a complete set of stamped drawings based on the schematic set provided by the contractor. If the Architecture firm’s proof of concept design is not followed, then to the extent the contractor installs parking lot Photovoltaic (PV) canopies, the placement and design of such canopies shall be consistent with future parking lot traffic and striping plan, parking lot maintenance requirements and minimum canopy heights. The portions of the Architecture firm’s concept design that are outside the scope of this project include but are not limited to: additional paving, bio-retention, permeable paving demonstration area, additional landscaping design, recreational additions, solar system products and efficiencies and system locations.

3. Project Requirements

3.1 General Requirements

3.1.1 Arrays shall be Net Metered.

3.1.1.1 Net metering shall be integrated into the Forest Service’s existing advanced metering system to allow independent monitoring.

3.1.2 Contractor shall supply all services including design, construction management, installation, labor and commissioning, and all hardware, supplies, materials and appurtenances to make the solar energy system complete and operational.

3.1.3 Design shall be stamped and approved by an appropriate professional.

3.1.4 PV arrays shall incorporate structural requirements specific to the site wind loading and seismic zone.

3.1.5 Contractor shall be responsible for improving any infrastructure necessary to install the PV system.

3.1.6 The contractor is responsible for the repair of any damage caused to the rooftop(s) as a result of their construction and PV system installation activities. This includes any damage which may occur during routine system maintenance activities. Any damage shall be promptly reported to the Forest Service on-site Contracting Officer’s Representative (COR) and the Contracting Officer. All necessary roof top repair work shall be subject to FS review and approval.

3.1.6.1 All rooftop repair work shall be performed in accordance with the manufacture specifications and shall conform to industry standards, including, but not limited to:

• The NRCA Spray Polyurethane Foam-based Roofing Manual, National Roofing Contractors Association

• Manual for Inspection and Maintenance of Spray Polyurethane Foam-based Roof Systems: A Guide For Building Owners, National Roofing Contractors Association

• Standard Guide for the Repair and Recoat of Sprayed Polyurethane Foam Roofing Systems, ASTM D6705/D6705M.

3.1.7 The contractor shall manage compliance processes and associated permits.

3.1.8 Parking lot PV structures installed in parking areas shall maintain minimum height clearances shown in the Architecture firm’s schematic design (i.e. 10’ standard parking, 14’ oversize parking). The existing parking lots will require resurfacing in the near future. It is important that any proposed parking lot PV system have adequate clearance to allow for future resurfacing and maintenance efforts.

3.1.9 Any rooftop PV system shall accommodate existing facility access.

3.2 Minimum and Maximum Annual kWh Production

3.2.1 Based on the 2013 kWh usage, one-hundred percent (100%) of the 2013 kWh usage numbers shall be generated by the PV system (approximately

1.2 MWh, see below). Tolerance for power generation is +5% and -10%.

3.3 Electric Vehicle Ready Stalls: A total of fourteen (14) “Electric Vehicle Ready” parking stalls will be installed under this contract. Four (4) parking stalls in the front row of the parking lot and ten (10) stalls in the rear of the parking lot shall be made “Electric Vehicle Ready” and shall have the following features:

3.3.1 Spare conduit shall be placed in existing trench sized according to code to support 208 Volts at 40 Amps for each parking stall. Spare conduit to terminate in main electrical room into central pull box.

3.3.2 Spare conduit shall be “stubbed out” into NEMA 3R rated pull box mounted to carport posts. Pull box to be located above the level of ground to prevent damage from vehicles. Each pull box to serve two (2) to four (4) car chargers, depending on the configuration of parking stalls.

Two (2) chargers for single row of stalls and Four (4) chargers for double rows shall be included.

3.3.3 Pull strings shall be run in each conduit in order to facilitate installation of conductors.

3.3.4 Separate communications conduit shall be provided and follow same trenching route. Communications conduit to be stubbed into nearest router closet designated by the FS Contracting Officer’s Representative.

3.4 Any area of the existing parking lot used to install PV supporting structures shall be sealed to the current expanse of asphalt (see section 8.2). The parking lot shall be striped by the contractor using the parking stall and drive lane dimensions shown in the Architecture firm’s schematic design. Final parking lot layout shall be approved by USFS.

3.5 All structural components, including array structures, shall be designed in a manner commensurate with applicable standards and codes. Particular attention shall be given to the prevention of galvanic corrosion at the connections between dissimilar metals, pile corrosion, and to the prevention of system deterioration due to atmospheric corrosion resulting from site specific atmospheric conditions (i.e. close proximity to saltwater).

3.6 Existing parking lot lighting poles and fixtures to be removed shall be replaced by high efficiency solid state LED lighting (ENERGY STAR® or FEMP Designated) mounted to carport structure provided by contractor. The new parking lot lighting system shall maintain a minimum horizontal illuminance of 0.2 footcandles (fc) at any given point (not the average) in accordance with Illuminating Engineering Society (IES) Standards. The system shall be controlled with sensors to eliminate daytime operation, as well as sensors to activate part or all of the lot when occupants or vehicles approach or enter the area, dimming for after expected use hours, and time switching for defined hours of facility use with known shift hours.

3.7 Recreation and beautification portions depicted in the Architecture Firm’s schematic design, in whole or in part, including but not limited to: trail restoration and extension, new or renovated accessible picnic areas, additional landscaping, and additional gates and/or fencing beyond what is required; are outside the scope of this project.

3.8 Fencing: Contractor shall replace any fence that is removed to install PV support structures. Fence shall be replaced at current location or along parking lot perimeter per USFS stipulations.

3.9 Security: Contractor shall maintain security measures at site during construction portion of this contract.

3.10 Memorial Tree: The Memorial Tree shall not be demolished. It may be relocated to a location specified by the Forest Service. See enclosed Site Plan, “Forest Service Site Markup.”

4. Interconnection Process Details for Island Energy

4.1 Contractor shall be responsible for coordinating with the Forest Service’s Utility Service provider, Island Energy or “IE” in meeting all requirements in order that an interconnection agreement can be established for the solar arrays. (Island Energy is a subsidiary of the Pittsburg [California] Power Company).

4.2 It is anticipated that the Island Energy Interconnection Agreement will be between Island Energy and the Forest Service.

Interconnection Agreement – Island Energy Required Notes

Application Yes http://www.islandenergy.com/blog1/residential/

(Please refer to the TAB entitled “SOLAR & REBATE PROGRAMS.”

System Impact Study

No System size of 1 MW or less - not required to undertake system impact study.

5. Site Energy Usage, Rates and Incentives

5.1 The Chart displays site monthly usage for

Main Building account only.

5.2 Both utility accounts, Main Building and

Annex, have flat, non-time of use (TOU) rates with no interval data available.

5.3 Mail Building Rate is Island Energy (IE) Large

Commercial Account at $.1586/kWh.

5.4 Annex Building Rate is IE Small Commercial

Account at $.1787/kWh.

5.5 A small rebate, capped at $25,000, may be

available.

5.6 Full Utility Information is available in the

Forest Service CloudVault files.

Date kWh

01/11/2013 100,000

02/11/2013 88,000

03/11/2013 77,000

04/11/2013 87,500

05/11/2013 87,500

06/11/2013 101,000

07/11/2013 110,000

08/11/2013 112,000

09/11/2013 107,500

10/11/2013 124,000

11/11/2013 109,060

12/11/2013 112,640

2013 Totals 1,216,200

Car Chargers 380,000

Gross Total 1,596,200

USFS Mare Island 2013 Usage (kWh) http://www.islandenergy.com/blog1/residential/

6. Options

6.1 Entrance Paving Expansion: Paving required to alleviate the traffic problem at the entrance to the parking lot (“S” curve) independent of the additional parking shall be included as a separate option to ensure maximum PV coverage while allowing for future paving to completely follow the parking layout of the enclosed schematic design. Crushed aggregate shall be default. See attached site plan, “Forest Service Site Markup.”

6.2 Main Parking Expansion: Paving required to extend the existing lot approximately 15’ to the southwest to accommodate the standard parking layout shall be included as a separate option. Crushed aggregate shall be default. See attached site plan, “Forest Service Site Markup.”

6.3 Overflow Paving: Paving the existing northwest overflow parking area shall be included as a separate option. Crushed aggregate shall be the default. See attached site plan, “Forest Service Site Markup.”

6.4 Additional Fencing: The existing fence along the outside of the parking lot may be improved to deter theft and can be included as an option to this contract.

6.5 Tower Removal: Towers on main roof may be removed to eliminate shading at contractor’s option. Any Tower removal shall address, but is not limited to, the following:

6.5.1.1 Aviation warning lights shall meet Federal Aviation Administration (FAA) standards at all times during demolition and upon completion of construction.

6.5.1.2 The existing commercial communication antenna on the Main Building roof shall be moved to a location suitable to the cellular provider and

USFS.

6.5.1.3 All crane work for removal of towers shall occur on weekends to minimize disruption to Forest Service work and minimize health and safety risk to Forest Service employees.

6.5.1.4 Tower demolition work plan shall include:

6.5.1.4..1 Tower demolition and removal procedures.

6.5.1.4..2 Equipment to be utilized.

6.5.1.4..3 Demolition scheduling and sequencing.

6.5.1.4..4 Contractor and Forest Service employee safety plan.

6.5.1.4..5 Material/Waste recycling per Section 7.2, below. Salvage value shall be reflected in the cost for this option.

6.6 Security Cameras: Contractor to provide option to include security cameras that monitor area beneath PV supporting structures in the parking lots. Contractor to provide communications conduit needed in project trenching in order to connect cameras to main building.

6.7 Storage Building (Annex) Roof and Adjacent Parking Area: Contractor can provide the option for Annex Building and Main Building Utility feeds to be consolidate into one feed with one meter serving Island Energy.

7. Additional Deliverables

7.1 Construction Work Plan, shall include, but not be limited to:

7.1.1 Work Schedule and sequencing

7.1.2 Communications

7.1.3 Identification of key personnel

7.1.4 Approval process for field changes and deviations from the 100% design

7.1.5 Identification of construction equipment to be utilized

7.1.6 Identification of Subcontractors

7.2 Construction and Demolition Waste Management Plan, shall include, but not be limited to:

7.2.1 Landfill waste diversion

7.2.2 Waste and material recycling

7.3 Traffic/Parking Control and Management shall address, but not be limited to:

7.3.1 Identification of equipment and material staging areas.

7.3.2 Figures showing parking sequencing.

7.3.3 Contractor shall leave a minimum of forty percent (40%) of parking areas open for use during construction.

7.3.4 Open parking areas can temporarily be dirt or gravel, but shall be treated for dust control.

7.4 Storm Water Pollution Prevention Plan, shall be submitted, as required, if the planned construction and ground disturbances will be greater than one (1) acre in size.

7.5 Contractor Emergency Response/Contingency Plan for Spills/Releases shall be submitted.

7.6 Construction Health and Safety Plan, shall include:

7.6.1 Rooftop Fall Protection Planning

7.7 Dust Control/Mitigation Plan shall be:

7.7.1 In accordance with California State drought guidelines

8. Specifications Incorporated by Reference

8.1 Electric

8.1.1 6. 150217 – USDA Forest Service Regional Vallejo Office PV – Electrical Design Build Criteria.docx or SECTION 260000, entitled “Electrical,” (located in Forest Service CloudVault).

8.1.2 Shall exclude Section 1.1 PROJECT DESCRIPTION. Information in this section is updated in this Scope of Work.

8.2 Parking and drive way surfaces

8.2.1 Parking and drive surfaces in the project shall meet the specifications of Standard Specifications for the Construction of Roads and Bridges on Federal Highway Projects (FP-03). The Payment specifications in FP-03 shall be removed and replaced with Power Purchase Agreement payment terms. The FP-03 can be found at the following link:

http://flh.fhwa.dot.gov/business/resources/specs/fp-03.htm

8.2.1.1 Compacted aggregate specifications

8.2.1.1..1 Use Minor Aggregate Specification in FP-03 Section 308 or use Class 2 Aggregate Base Per California Department of Transportation specification

8.2.1.2 Asphalt Seal Specification

8.2.1.2..1 Use Slurry Seal per Section 410.

8.2.1.3 New asphalt specifications

8.2.1.3..1 Use Minor Hot Asphalt Concrete per Section 404.

8.2.1.4 Parking striping specifications

8.2.1.4..1 Waterborne Traffic Paint – Daylight reluctance. Delete existing subsection and substitute the following for FP03 section 718.14(g):

http://flh.fhwa.dot.gov/business/resources/specs/fp-03.htm

(1) White, ASTM E 1374 84% relative to magnesium standard

(2) Yellow, ASTM E 1347 55% relative to magnesium standard

8.2.1.4..2 Epoxy Marking – Drying time. Delete existing subsection and substitute the following for FP03 section 718.15(g)

(1) Laboratory at 72F, ASTM D 11 30 minutes maximum to no-pick-up condition

(2) Field at 77F, viewed from 50 feet 10 minutes maximum to no-pick-up condition

8.2.1.4..3 Epoxy Markings Pigments. Delete existing subsection and substitute the following for FP03 section 718.15(a)

(2) Yellow.

(a) Chrome yellow (PbCrO4) 23%

ASTM D 126, type III.

(b) Epoxy resin 70% to 77%