4574_NARS_EV_Special_Provisions.pdf

COUNTY OF SACRAMENTO

COMMUNITY SERVICES

Department of Waste Management and Recycling

CONTRACT SPECIFICATIONS

FOR

NORTH AREA EV CHARGING

INFRASTRUCTURE – PHASE 1

Project Manager: Anthony Pasek Sacramento County Department of Waste Management and Recycling

(916) 875-6971 paseka@saccounty.gov

Bidding Documents, Contract Requirements, and Technical Specifications

CONTRACT NO. 4574

June 2024

NOTE: The County of Sacramento Standard Construction Specifications dated September 2001, revised March 2004, revised January 2008, revised January 1, 2016, revised January 1, 2017 and revised February 1, 2017, are hereby made a part of these Special Provisions. The Standard Construction Specifications may be downloaded at http://www.saccountyspecs.net.

KEITH GOODRICH, DIRECTOR

DEPARTMENT OF WASTE MANAGEMENT AND RECYCLING

NORTH AREA EV CHARGING INFRASTRUCTURE – PHASE 1

CONTRACT NO. 4574

TABLE OF CONTENTS FOR CONTRACT DOCUMENTS

DIVISION 1 – GENERAL REQUIREMENTS

MODIFICATIONS TO STANDARD CONSTRUCTION SPECIFICATIONS

2-1 BID PROPOSAL

2-2 PREPARATION AND SUBMISSION OF BIDS

2-8 SUBCONTRACTORS

2-8.01 ELECTRIC VEHICLE INFRASTRUCTURE TRAINING PROGRAM CERTIFICATION

2-9 ADDENDA

2-11 BID GUARANTEE

2-12 WITHDRAWAL OF BID

2-13 PUBLIC OPENING OF BIDS

3-2 CONSIDERATION OF BIDS

3-3 AWARD OF CONTRACT

3-7 EXECUTION OF CONTRACT

4-1 INTENT OF CONTRACT DOCUMENTS

4-1.01 CUTTING AND PATCHING

4-1.02 WORK AND LIMITATIONS

4-2 PLANS AND SPECIFICATIONS FURNISHED

4-6 DOCUMENT PRECEDENCE

5-1 AUTHORITY OF AGENCY

5-8.01 SUBMITTALS – GENERAL

5-9.01 AGENCY-FURNISHED SURVEYS

5-16 TESTING

6-1.02 PREVAILING WAGE

6-11 EXISTING UTILITIES

6-11.06 UTILITY SHUTDOWNS and CONNECTIONS

7-3 PRECONSTRUCTION CONFERENCE AND PROGRESS MEETINGS

7-8.01 ALLOWABLE TIMES AND HOURS OF WORK

7-9 TEMPORARY FACILITIES

7-9.01 FIELD OFFICES

7-9.02 CONSTRUCTION SITE UTILITIES

7-10 PROTECTION OF WORK, PERSONS AND PROPERTY

7-15 TIME OF COMPLETION

8-10 LIQUIDATED DAMAGES

10-4.03 AGENCY REQUIREMENTS

10-9 SANITARY REGULATIONS

11-2 PRECONSTRUCTION PHOTOGRAPHS

12-4.02 TRAFFIC CONTROL PLANS (TCP)

01025 MEASUREMENT AND PAYMENT

TECHNICAL SPECIFICATIONS

DIVISION 2 – EXISTING CONDITIONS

DIVISION 3 – CONCRETE

DIVISION 26 – ELECTRICAL

DIVISION 27 – COMMUNICATIONS

DIVISION 1 - GENERAL REQUIREMENTS

All portions of the County of Sacramento Standard Construction Specifications dated September 2001, revised March 2004, January 2008, revised January 1, 2016, revised January 1, 2017 and revised February 1, 2017, are hereby made part of these specifications. Modifications to the Standard Construction Specifications are noted below.

The Standard Construction Specifications along with these project specifications shall be considered as one body of specifications.

MODIFICATIONS TO STANDARD CONSTRUCTION SPECIFICATIONS

Section 2-1 Bid Proposal

The following is added before the last sentence of the first paragraph:

Signatures scanned or transmitted electronically shall be deemed original signatures for purposes of the Bid, with such scanned signatures having the same legal effect as original signatures.

The first sentence of the second paragraph is deleted and replaced with the following:

The Bid must be made on the bid proposal form furnished by the Agency as follows:

2-2 PREPARATION AND SUBMISSION OF BIDS

The fifth and sixth paragraphs of this section are deleted in their entirety and replaced as follows:

Bids must be submitted on the Agency's eProcurement system website as indicated in the Notice to Bidders. All Bid pricing, forms, and attachments requested in the online Bid posting must be completed and submitted by the date and time indicated in the Notice to Bidders or subsequent Addendum in order for the Bid to be considered by the Agency. Bidders will receive a confirmation email from the Agency’s eProcurement system providing the date and time that the Bid was received by the Agency’s eProcurement system. Late Bids will not be accepted by the Agency. Bids delivered by hand, fax, telephone, e-mail, or any postal carrier will not be accepted by the Agency.

2-8 SUBCONTRACTORS

The following is added after the last sentence of the fourth paragraph in this section:

Bidders must complete all requested fields for each Subcontractor listed on the designation of subcontractors form provided in the Agency's eProcurement system and upload and submit a completed form with their Bid, failure to do so may be cause to reject the Bid.

2-8.01 ELECTRIC VEHICLE INFRASTRUCTURE TRAINING PROGRAM

CERTIFICATION

At least one electrician on each crew, at any given time, must hold an Electric Vehicle Infrastructure Training Program certification (EVITP).

2-9 ADDENDA

This section is deleted in its entirety and replaced with the following:

The correction of material discrepancies in, or material additions to/omissions from, the Plans, Specifications, or other Contract document, or an interpretation thereof, during the bidding period will be made only by an Addendum issued by the Agency. Addenda will be posted on the Agency's eProcurement system website and available for review by all Bidders. Bidders must acknowledge any and all Addenda before submitting a Bid.

Addenda become part of the Contract upon issuance. Interpretations or explanations not included in an Addenda will not be considered binding.

2-11 BID GUARANTEE

The following is added as the third paragraph to this section:

Bidders must upload a copy of their Bid Guarantee and submit it with their Bid in the Agency's eProcurement system. After Bids are opened and the apparent low bidder is identified, the apparent low Bidder must deliver their original Bid Guarantee to the Agency by 4:00 PM the first Monday following Bid Opening, to: County of Sacramento, Contracts & Purchasing Division, 9660 Ecology Lane, Sacramento, CA 95827.

2-12 WITHDRAWAL OF BID

This section is deleted in its entirety and replaced with the following:

A Bid can be withdrawn prior to the time for the submission of Bids in the Notice to Bidders by canceling or deleting the submitted Bid in the Agency's eProcurement system. The withdrawal of a Bid does not prejudice the right of a Bidder to file a new or revised Bid in accordance with the Notice to Bidders. Bids can be revised in the Agency's eProcurement system prior to the Bid due date and time.

2-13 PUBLIC OPENING OF BIDS

This section is deleted in its entirety and replaced with the following:

Bids will be publicly opened by electronically unsealing the Bids on the Agency's eProcurement system website as indicated in the Notice to Bidders or a subsequent Addendum. Bidders and the public can view Bids received on the Agency's eProcurement system website after the Bid due date and time.

3-2 CONSIDERATION OF BIDS

Sentence three of paragraph two shall be deleted and replaced with the following:

If the bid is missing a lump sum price or a unit price, in either the base bid or any alternate, then the bid will be deemed incomplete and the bid will be rejected as non-responsive.

3-3 AWARD OF CONTRACT

Delete the entire section and replace with the following:

If the Contract is awarded, the award will be to the lowest responsive, responsible Bidder and as noted on the proposal bid form.

3-7 EXECUTION OF CONTRACT

Add the following paragraph to this section:

Agreement forms shall be those shown in Sample Forms of the Standard Construction Specifications.

4-1 INTENT OF CONTRACT DOCUMENTS

Add the following paragraphs to this section:

The project specifications use the Construction Specifications Institute (CSI) format.

The CSI format divisions shall not operate to make the County an arbiter to establish subcontract limits between Contractor and/or subcontractors. The General Contractor is responsible to the County for all phases of construction and a complete job.

The existing conditions depicted on the drawings and specifications are developed from record information. Exact locations, distances, dimensions, elevations, etc., shall be governed by actual field conditions and verified by the Contractor.

4-1.01 CUTTING AND PATCHING

1. The Contractor shall be responsible for all cutting, fitting, and patching required to complete the work including penetrations of surfaces for installation of ducts and conduit.

2. Cutting of structural members not specifically shown on the contract drawings, or cutting which might affect the integrity or effectiveness of weather exposed or moisture resistant elements or systems, must be approved in advance by the Engineer.

3. The Contractor is responsible for inspecting existing conditions, including elements subject to damage or movement during cutting or patching, prior to commencing any cutting operation. The Contractor shall provide temporary support adequate to insure the structural integrity of the affected portions of the work, and shall provide devices or use methods to protect other portions of the facility from damage.

4. The Contractor shall provide patching of a smooth and continuous nature, and shall refinish and paint all affected surfaces to match adjacent surfaces.

4-1.02 WORK AND LIMITATIONS

1. During the progress of work, the existing facilities shall be maintained without interruption, except by specific arrangement with the Project Inspector and then only at such times as approved in writing by the Project Inspector.

2. The Contractor shall coordinate the work of this contract through the Project Inspector assigned by the Engineer.

4-2 PLANS AND SPECIFICATIONS FURNISHED

The first paragraph shall be deleted and replaced with the following:

The Agency will provide the fully executed Contract for the Contractor’s use in prosecuting the Work. The Agency will not provide copies of Project Plans, Standard Drawings or State Plans, Project Specifications, Standard Construction Specifications or the State Specifications, and Special Provisions. Project Plans and Project Specifications can be downloaded from https://secure.procurenow.com.

4-6 DOCUMENT PRECEDENCE

3. Project Plans

a) Detail notes shall take precedence over General Notes

b) Larger scale drawings/details shall take precedence over small scale drawings

5-1 AUTHORITY OF AGENCY

5-8.01 SUBMITTALS – GENERAL

Sentence one of paragraph five shall be replaced by the following:

Copies of all submittals shall be furnished electronically, an electronic copy will be returned after review.

5-9.01 AGENCY-FURNISHED SURVEYS

The entire section shall be deleted and replaced with the following:

The contractor shall be responsible for and shall perform all surveys and measurements necessary for layout and control of work in accordance with Section 5-

9.03 of the Standard Construction Specifications.

5-16 TESTING

Testing of soils, concrete and aggregate shall be performed by the County in accordance with Section 5-16 of the Standard Construction Specifications. All other tests shall be performed and paid for by the Contractor as required in these contract documents.

6-1.02 PREVAILING WAGE

Add the following sentence to the first paragraph:

All questions regarding labor compliance regulations, including job classifications and pay scales should be directed to the Agency Labor Compliance Program, telephone

(916) 875-2700.

6-11 EXISTING UTILITIES

6-11.06 UTILITY SHUTDOWNS and CONNECTIONS

The Project Inspector shall be notified two (2) working days in advance of any contemplated shutdown of electricity or other utility. The Project Inspector’s approval shall be obtained prior to any shutdown activity.

The Contractor shall schedule and coordinate all connections and other work to be performed by public and private utility organizations necessary for the completion of the project.

7-3 PRECONSTRUCTION CONFERENCE AND PROGRESS MEETINGS

Add the following sentence:

Construction meetings will be held weekly.

7-8.01 ALLOWABLE TIMES AND HOURS OF WORK

The entire section shall be deleted and replaced with the following:

Work may be performed between the hours of 6:30 a.m. through 6 p.m., 7 days per week, excluding Legal Holidays. When the Contractor wants to work outside of these hours, a written request must be submitted to the Agency at least 2 working days in advance of the intended work. The Agency will evaluate the Contract’s request to determine if there is benefit to the Agency. The Agency can place conditions on approval of off-period work. Anytime work impacts the site travel way, work must be performed at night.

7-9 TEMPORARY FACILITIES

The Contractor shall obtain the prior approval of the Project Inspector for acceptable site access or before using any area or space for Contractor’s storage during construction operations. Materials, equipment, etc., shall not be piled or stored in any location which shall interfere with the conduct of normal functions of the building and/or facilities, and shall not constitute a hazard to persons or property. Any required safety precautions such as signs, danger signals, lanterns, barricades, etc., shall be provided by and installed by the Contractor during construction operations.

No advertising signs of any kind will be permitted except by written permission of the Engineer.

7-9.01 FIELD OFFICES

Space for a contractor’s field office shall be made available.

7-9.02 CONSTRUCTION SITE UTILITIES

1. WATER: Contractor may connect a temporary line to the existing site hose bibs or the NARS operations Sacramento Suburban Water District hydrant meter. The Contractor is to verify conditions at the site. If the contractor wants to use another water location, the Contractor shall be responsible to obtain a water meter from the Sacramento Suburban Water District to use the site’s fire hydrants. The contractor may not interfere with NARS operations when accessing water. The Contractor shall be responsible to verify all existing conditions associated with a water connection. Connections to existing water service lines shall be coordinated with and accepted by the Project Inspector. Water used in construction must comply with Section 16 of the Standard Construction Specifications.

2. ELECTRICAL POWER: Hook-up to existing service is not allowed. The Contractor shall arrange for and shall install power service from SMUD service lines, or shall provide a portable generator. Contractor shall coordinate with Site Engineer in order to hook-up to existing service.

3. TELEPHONE: Contractor shall not have access to phones on site and therefore, shall arrange for their mobile phone if needed for on-site communication.

7-10 PROTECTION OF WORK, PERSONS AND PROPERTY

Provide temporary fencing, lock boxes etc., as required to protect material storage, equipment and building under construction from theft, vandalism and unauthorized entry.

The Contractor shall be responsible for all damage in the area of Work, or any other area in the building or on the site, caused by Contractor, his employees or subcontractors.

7-15 TIME OF COMPLETION

The time for completion of this contract shall be 160 calendar days commencing as specified in these Special Provisions and Section 7-1 of the Standard Construction Specifications.

8-10 LIQUIDATED DAMAGES

Liquidated damages shall be $500.00 for each calendar day(s) delay beyond the established contract completion date that all work, is not completed.

10-4.03 AGENCY REQUIREMENTS

Add the following sentence to this section:

A Water Pollution Control Program is required.

10-9 SANITARY REGULATIONS

The Contractor shall furnish, install, and remove at completion of the job, all sanitary (portable toilet) facilities required during project construction. Facilities shall be provided in sufficient quantities to comply with CAL-OSHA regulations. All such sanitary facilities shall be made available for use by all workers, subcontractors, consultants, and County personnel associated with the project. The type and location of the facilities shall be subject to acceptance by the Project Inspector. The Contractor shall maintain sanitary facilities in a proper, safe, operating, and sanitary condition for the duration of the work. Contractor’s employees shall not use existing facilities at the site.

11-2 PRECONSTRUCTION PHOTOGRAPHS

Preconstruction photographs shall be required and shall conform to Section 11-2 of the Standard Construction Specifications.

Full compensation for preconstruction photographs is included in the prices paid for the various items of work and no separate payment will be made.

12-4.02 TRAFFIC CONTROL PLANS (TCP)

Delete all references to “public right-of-way” and replace with “public right-of-way and/or County owned facilities”.

END OF SECTION

SECTION 01025

MEASUREMENT AND PAYMENT

PART 1 GENERAL

SECTION INCLUDES

A. Measurement and payment methods for contract bid items.

MEASUREMENT OF QUANTITIES

A. Based on actual units installed or neat line dimensions of work completed.

CALCULATION OF QUANTITIES

A. Progress Payment Quantities:

1. Contractor will compute all quantities of Work performed, or of materials and equipment delivered to the site for progress payment purposes.

2. County/Engineer may at any time verify quantities calculated by Contractor.

B. Final Payment Quantities: Contractor will compute all quantities of Work performed, or of materials and equipment delivered and installed for final payment purposes. County/Engineer may perform an independent computation of all quantities of work performed, and of materials and equipment installed.

PAYMENT

A. In accordance with lump sum, unit prices, or force account rates shown on the Contractor’s final negotiated Bid Schedule.

B. Includes all costs for overhead and profit and for supplying materials, labor, equipment, tools and incidentals, necessary to complete the Work in accordance with the Specifications, Drawings, and Contract Documents.

VALUES OF UNIT PRICES

A. The number of units and quantities contained in the Bid Schedule are approximate only, and final payment will be made for the actual number of units and quantities incorporated in the Work or made necessary to complete the project.

B. In the event that work and materials or equipment are required to be furnished to a greater or lesser extent than is indicated by the Contract Documents, such work and materials or equipment shall be furnished in greater or lesser quantities.

CHANGES AND EXTRA WORK

A. Changes and extra work will be measured and paid for in accordance with the requirements of the Contract Documents.

REJECTED MATERIALS

A. Quantities of material wasted or disposed in a manner not called for in the Specifications; rejected loads of material, including material rejected after it has been placed by reasons of the failure of Contractor to conform to the provisions of the Specifications; material not unloaded from the transporting vehicle;

material placed outside the limits indicated by the Construction Drawings or established by County; or material remaining on hand after completion of the Work, will not be paid for, and such quantities will not be included in the final total quantities. No compensation will be made for loading, hauling, and disposing of rejected material.

PAY ITEMS

NORTH AREA EV CHARGING INFRASTRUCTURE – PHASE 1

1. Mobilization/Demobilization (Bid Item 1)

a. Measurement by lump sum (LS). This contract lump sum price paid for mobilization shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work involved in mobilization as specified. No separate payment will be made for demobilization.

b. Payment shall be lump sum (LS). Payment shall be in accordance with Section 8‐1.03.B of the Standard Specifications.

This item shall consist of work and operations, but is not limited to, work and operations necessary for the movement of personnel, equipment, material and supplies to and from the project site; for the establishment of all offices, buildings and other facilities necessary for work on the projects; for all other work and operations which must be performed or costs incurred prior to beginning work on the various contract items on the project; and for work on the project except as provided in the contract as separate pay items.

2. Water Pollution Control Plan and Implementation (Bid Item 2)

a. Payment shall be by lump sum. The contract lump sum for preparation and implementation of the Water Pollution Control Plan includes full compensation for furnishing all labor, materials, tools, equipment and incidentals for doing all the work involved in developing, preparing, obtaining approval of, revising and amending the Plan as specified in the Standard Construction Specifications, these Special Provisions, and as directed by the Engineer, and implementation, and no additional compensation will be allowed therefor.

3. Site Preparation and Demolition (Bid Item 3)

a. Measured by the lump sum (LS).

b. Payment shall be lump sum (LS). The cost shall include full compensation for furnishing all labor, materials, equipment, tools, and accessories to remove all of the items shown on the civil demolition sheets and included in specification sections 02225 and 02230.

Items include clear and grubbing, potholing, removing striping, curb paint, bollards, steel posts, fused switches, trees, and other demolition work not further specified but necessary to complete the work as intended in the contract documents.

Site preparation and demolition shall include full compensation for furnishing all labor, materials, equipment, and incidentals, for restoration of the asphalt surface for items demolished in existing paved areas.

The contract lump sum price paid for Site Preparation and Demolition includes the costs for disposal of the resulting material.

4. Site Electrical Work (Bid Item 4)

a. Measurement by lump sum (LS)

b. Payment shall be lump sum (LS). Payment for electrical site work shall include full compensation for furnishing all labor, materials, tools, equipment and incidentals, and for electrical trenching, completing all the electrical work necessary to complete electrical point of connection to existing electrical panels, furnish and install pull boxes, disconnect switches, pull tape, j‐boxes, electrical conduits, electrical cabling, distribution panels with support structure and foundation, and connections between electric vehicle charging stations, distribution panels, and communication boxes. Price includes installing all conduits, conduit stubups, and pulltape shown on the plans. Payment includes installing electrical equipment as shown or specified in the Contract, in these Specifications, and as directed by the Agency for which separate payment is not otherwise provided.

Also included in the price bid are backfill of electrical trenching and restoration of surfaces. Also included in the price bid are the concrete pad and support structure for the new distribution panels.

5. Site Data Work (Bid Item 5)

a. Measurement based on lump sum (LS).

b. Payment contract price for site data work includes full compensation for furnishing all labor, tools, equipment, incidentals, for data cabling (fiber optic and CAT‐6), completing fiber terminations in communications boxes and data points of connection, data conduit, placing pull strings, and data pull boxes, placing data conduit to electric vehicle charging stations and communication boxes. The contract price includes data connections to electric vehicle chargers and communication boxes. The contract price also includes full compensation for data trenching including excavation, trench bedding, backfill, surface restoration and all work needed to complete data work as shown or specified in the Contract, in these Specifications, and as directed by the Agency, and no additional payment will be allowed therefor.

6. Communications Box (Bid Item 6)

a. Measurement based on each (EA).

b. Payment contract price per each communication box includes full compensation for furnishing all labor, tools, equipment, incidentals, to furnish and install communications boxes in place, including concrete foundations and anchoring as specified in these Plans, specifications and special provisions and no additional payment will be allowed therefor.

7. Terra 54 (Or approved equal) Electric Vehicle Charging Station (Bid Item 7)

a. Measurement based on each (EA).

b. Payment, for each Terra 54 electric vehicle charging station (or approved equal) includes full compensation for furnishing all labor, tools, equipment and incidentals to furnish and install electric vehicle charging station in place, including constructing foundations, anchoring and installing, and testing and commissioning of the Terra 54 electric vehicle charging station in place as shown on the Plans, these Special Provisions, and as directed by the Engineer and no additional compensation shall be allowed therefore.

Payment for the contractor to make all necessary data and electrical wiring connections to the Terra 54 shall be included in the respective Site Data and Site Electrical bid items.

8. Terra 124 (Or approved equal) Electric Vehicle Charging Station (Bid Item 8)

a. Measurement based on each (EA).

b. Payment, for each Terra 124 electric vehicle charging station (or approved equal) includes full compensation for furnishing all labor, tools, equipment and incidentals to furnish and install electric vehicle charging station in place, including constructing foundations, anchoring and installing, and testing and commissioning of the Terra 124 electric vehicle charging station in place as shown on the Plans, these Special Provisions, and as directed by the Engineer and no additional compensation shall be allowed therefore.

Payment for the contractor to make all necessary data and electrical wiring connections to the Terra 124 shall be included in the respective Site Data and Site Electrical bid items.

9. Wheel Stops – 8’ Long (Bid Item 9)

a. Measurement by each (EA).

b. Payment shall be by each (EA). The payment shall include full compensation for furnishing all labor, materials, tools, equipment and incidentals, and for completing all the work necessary to furnish and install wheel stops, as described in these Special Provisions, as shown on the plans, and as designated by the Agency.

10. Pavement Markings (Bid Item 10)

a. Measured by lump sum (LS).

b. Payment will be by lump sum (LS). The prices paid per lump sum of pavement paint markings of the widths and patterns designated in the Contract includes full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work involved in applying paint traffic stripes and pavement markings, complete in place, including establishing alignment for the markings, and layout work, as shown or specified in the Contract, these Specifications, and directed by the Agency. Bid item includes all paint pavement markings not otherwise included in the bid table.

PART 2 PRODUCTS

Not Used.

PART 3 EXECUTION

Not Used.

DEMOLITION

02225-1

INFRASTRUCTURE - PHASE 1

SACRAMENTO COUNTY, CALIFORNIA

SECTION 02225 - DEMOLITION

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Selective demolition of built site elements.

B. Abandonment and removal of existing utilities and utility structures.

1.2 RELATED SECTIONS

A. Section 02230 - Site Clearing: Vegetation and existing debris removal.

B. Section 02310 - Grading: Fill material for filling holes, pits, and excavations generated as a result of removal operations.

C. Section 02316 - Fill and Backfill: Filling holes, pits, and excavations generated as a result of removal operations.

1.3 REFERENCES

A. 29 CFR 1926 - U.S. Occupational Safety and Health Standards; current edition.

1.4 SUBMITTALS

A. Site Plan: Showing:

1. Areas for temporary construction and field offices.

2. Areas for temporary and permanent placement of removed materials.

B. Demolition Plan: Submit demolition plan as specified by OSHA and local authorities.

1. Indicate extent of demolition, removal sequence, and location and construction of barricades and fences.

2. Include a summary of safety procedures.

1.5 PROJECT CONDITIONS

A. Minimize production of dust due to demolition operations; do not use water if that will result in ice, flooding, sedimentation of public waterways or storm sewers, or other pollution.

2.1 MATERIALS

A. Fill Material: As specified in Section 02310 – Grading.

PART 3 EXECUTION

3.1 SCOPE

02225-2

NORTH AREA EV CHARGING

A. Remove paving as required to accomplish new work.

B. Remove items as indicated on Project Drawings.

C. For demolition within existing paved areas, restore the asphalt pavement section. Place aggregate base and asphalt concrete to the thicknesses shown in the contract drawings and these Special Provisions, and compact to the required density per the contract drawings and these Special Provisions.

3.2 GENERAL PROCEDURES AND PROJECT CONDITIONS

A. Comply with applicable codes and regulations for demolition operations and safety of adjacent structures and the public.

1. Obtain required permits.

2. Use of explosives is not permitted.

3. Take precautions to prevent catastrophic or uncontrolled collapse of structures to be removed; do not allow worker or public access within range of potential collapse of unstable structures.

4. Provide, erect, and maintain temporary barriers and security devices.

5. Use physical barriers to prevent access to areas that could be hazardous to workers or the public.

6. Conduct operations to minimize effects on and interference with adjacent structures and occupants.

7. Do not close or obstruct roadways or sidewalks without permit.

8. Conduct operations to minimize obstruction of public and private entrances and exits; do not obstruct required exits at any time; protect persons using entrances and exits from removal operations.

B. Do not begin removal until receipt of notification to proceed from County of Sacramento.

C. Do not begin removal until built elements to be salvaged or relocated have been removed.

D. Protect existing structures and other elements that are not to be removed.

1. Provide bracing and shoring.

2. Prevent movement or settlement of adjacent structures.

3. Stop work immediately if adjacent structures appear to be in danger.

E. If hazardous materials are discovered during removal operations, stop work and notify County of Sacramento; hazardous materials include regulated asbestos containing materials, lead, PCB's, and mercury.

F. Perform demolition in a manner that maximizes salvage and recycling of materials.

1. Comply with County’s Waste Management requirements.

2. Set aside reusable, recyclable, and salvageable materials; store and deliver to collection point or point of reuse.

02225-3

NORTH AREA EV CHARGING

G. Partial Removal of Paving and Curbs: Neatly saw cut at right angle to surface.

3.3 EXISTING UTILITIES

A. Coordinate work with utility companies; notify before starting work and comply with their requirements; obtain required permits.

B. Protect existing utilities to remain from damage.

C. Do not disrupt public utilities without permit from authority having jurisdiction.

D. Do not close, shut off, or disrupt existing life safety systems that are in use without at least 7 days prior written notification to County of Sacramento.

E. Do not close, shut off, or disrupt existing utility branches or take-offs that are in use without at least 3 days prior written notification to County of Sacramento.

F. Locate and mark utilities to remain; mark using highly visible tags or flags, with identification of utility type; protect from damage due to subsequent construction, using substantial barricades if necessary.

G. Remove exposed piping, valves, meters, equipment, supports, and foundations of disconnected and abandoned utilities.

H. Prepare building demolition areas by disconnecting and capping utilities outside the demolition zone; identify and mark utilities to be subsequently reconnected, in same manner as other utilities to remain.

3.4 SELECTIVE DEMOLITION FOR ALTERATIONS

A. Drawings showing existing construction and utilities are based on casual field observation and existing record documents only.

1. Verify that construction and utility arrangements are as shown.

2. Report discrepancies to County of Sacramento before disturbing existing installation.

3. Beginning of demolition work constitutes acceptance of existing conditions.

B. Separate areas in which demolition is being conducted from other areas that are still occupied.

C. Remove existing work as indicated and as required to accomplish new work.

1. Remove items indicated on drawings.

D. Services (Including but not limited to HVAC, Plumbing, Fire Protection, Electrical, and Telecommunications): Remove existing systems and equipment as indicated.

1. Maintain existing active systems that are to remain in operation; maintain access to equipment and operational components.

2. Where existing active systems serve occupied facilities but are to be replaced with new services, maintain existing systems in service until new systems are complete and ready for service.

3. Verify that abandoned services serve only abandoned facilities before removal.

4. Remove abandoned pipe, ducts, conduits, and equipment, including those above accessible ceilings; remove back to source of supply where possible, otherwise cap stub and tag with identification.

E. Protect existing work to remain.

1. Prevent movement of structure; provide shoring and bracing if necessary.

02225-4

NORTH AREA EV CHARGING

2. Perform cutting to accomplish removals neatly and as specified for cutting new work.

3. Repair adjacent construction and finishes damaged during removal work.

4. Patch as specified for patching new work.

3.5 DEBRIS AND WASTE REMOVAL

A. Remove debris, junk, and trash from site.

B. Remove from site all materials not to be reused on site.

C. Leave site in clean condition, ready for subsequent work.

D. Clean up spillage and wind-blown debris from public and private lands.

END OF SECTION 02225

SACRAMENTO COUNTY, CALIFORNIA

SITE CLEARING

02230 - 1

SECTION 02230 - SITE CLEARING

A. Clearing of vegetation.

B. Removal of existing debris, pipes, and other items obstructing the work.

A. Section 02225 - Demolition: Removal of built elements and utilities.

B. Section 02310 - Grading: Fill material for filling holes, pits, and excavations generated as a result of removal operations.

C. Section 02316 - Fill and Backfill: Filling holes, pits, and excavations generated as a result of removal operations.

1.3 PROJECT CONDITIONS

A. Minimize production of dust due to clearing operations; do not use water if that will result in ice, flooding, sedimentation of public waterways or storm sewers, or other pollution. . 1

A. Fill Material: As specified in Section 02310 - Grading

PART 3 EXECUTION

3.1 EXISTING UTILITIES AND BUILT ELEMENTS

A. Protect existing utilities to remain from damage.

B. Do not disrupt public utilities without permit from authority having jurisdiction.

C. Protect existing structures and other elements that are not to be removed.

3.2 VEGETATION

A. Scope: Remove shrubs, brush, and stumps within limit of work.

B. Do not remove or damage vegetation beyond the limits indicated on drawings.

1. Exception: Specific trees and vegetation indicated on drawings to be removed.

2. Exception: Selective thinning of undergrowth specified elsewhere.

C. Install substantial, highly visible fences at least 3 feet high to prevent inadvertent damage to vegetation to remain:

1. At vegetation removal limits.

2. Around trees to remain within vegetation removal limits; locate no closer to tree than at the drip line.

3. Around other vegetation to remain within vegetation removal limits.

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SITE CLEARING

02230 - 2

D. In areas where vegetation must be removed but no construction will occur other than pervious paving, remove vegetation with minimum disturbance of the subsoil.

E. Vegetation Removed: Do not burn, bury, or leave on site, except as indicated.

1. Chip, grind, crush, or shred vegetation for mulching, composting, or other purposes; preference should be given to on-site uses.

2. Existing Stumps: Treat as specified for other vegetation removed;

remove stumps and roots to depth of 18 inches.

3. Removed vegetation can be placed in the onsite green waste pile.

F. Dead Wood: Remove all dead trees (standing or down), limbs, and dry brush on entire site; treat as specified for vegetation removed.

G. Restoration: If vegetation outside removal limits or within specified protective fences is damaged or destroyed due to subsequent construction operations, replace at no cost to County of Sacramento.

3.3 DEBRIS

A. Remove debris, junk, and trash from site.

B. Leave site in clean condition, ready for subsequent work.

C. Clean up spillage and wind-blown debris from public and private lands.

END OF SECTION 02230

SACRAMENTO COUNTY, CALIFORNIA

GRADING

02310 - 1

SECTION 02310 - GRADING

A. Grading and preparation of subgrade for paving, aggregate base surface course and for site structures.

B. Finish grading to the lines and grades for subgrade (finish grade elevations shown on the construction drawings).

A. Section 02230 - Site Clearing.

B. Section 02315 - Excavation.

C. Section 02316 - Fill and Backfill: Filling and compaction.

1.3 SUBMITTALS

A. Project Record Documents: Accurately record actual locations of utilities remaining by horizontal dimensions, elevations or inverts, and slope gradients.

1.4 QUALITY ASSURANCE

A. Perform Work in accordance with County of Sacramento, Standard Construction Specifications.

1. Maintain one copy on site.

1.5 PROJECT CONDITIONS

A. Protect above- and below-grade utilities that remain.

B. Protect benchmarks, survey control points, existing structures, fences, paving, and curbs to remain from grading equipment and vehicular traffic.

A. Onsite soil: See Section 02315.

3.1 EXAMINATION

A. Verify that survey benchmark and intended elevations for the Work are as indicated.

3.2 PREPARATION

A. Identify required lines, levels, contours, and datum.

B. Stake and flag locations of known utilities.

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GRADING

02310 - 2

C. Locate, identify, and protect utilities that remain, from damage.

3.3 GRADING AND COMPACTION

A. Grading shall be done to the lines and grades shown on the construction drawings. Construction drawings indicate finish grade elevations.

B. Moisture condition subgrade material to the optimum moisture content as obtained by

ASTM D1557.

C. Compact subgrade according to paragraph 3.05 in Section 02316 Fill and Backfill.

D. Benching Slopes: Horizontally bench existing slopes greater than 3:1 (H:V) to key fill material to slope for firm bearing.

E. Stability: Replace damaged or displaced subsoil to same requirements as for specified fill.

3.4 SOIL STOCKPILING

A. Stockpile excess soil on site at locations according to Owner's instructions.

B. Stockpile excavated subsoil on site.

C. Stockpiles: Use areas designated on site; pile depth not to exceed 10 feet; protect from erosion.

3.5 FINISH GRADING

A. Before Finish Grading:

1. Verify building and trench backfilling have been inspected.

2. Verify subgrade has been contoured and compacted.

B. Remove debris, roots, branches, stones, in excess of 1/2 inch in size. Remove soil contaminated with petroleum products.

C. In areas where vehicles or equipment have compacted soil, scarify surface to depth of 6 inches.

3.6 TOLERANCES

A. Top Surface of Subgrade: Plus or minus 1/10 foot from required elevation.

B. Top Surface of Finish Grade: Plus or minus 1/2 inch.

3.7 FIELD QUALITY CONTROL

A. See Section 02316 for compaction density testing.

3.8 CLEANING AND PROTECTION ꞏ

A. Remove stockpiled topsoil and subsoil according to Owner's instructions. Grade stockpile area to prevent standing water.

END OF SECTION 02310

SACRAMENTO COUNTY, CALIFORNIA

EXCAVATION

02315 - 1

SECTION 02315 - EXCAVATION

PART1 GENERAL

A. Excavating for building volume below grade, footings, slabs-on-grade, paving, and site structures and to grade the site according to the lines and grades shown on the construction drawings.

1.2 RELATED SECTIONS

A. Section 02310 - Grading: Grading.

B. Section 02316 - Fill and Backfill: Fill materials, filling, and compacting.

C. Section 02317 - Trenching for Site Utilities: Excavating for utility trenches to utility main connections.

1.3 PROJECT CONDITIONS

A. Verify that survey benchmark and intended elevations for the Work are as indicated.

PART 2 PRODUCTS (NOT USED)

3.1 PREPARATION

A. Identify required lines, levels, contours, and datum locations.

B. Locate, identify, and protect utilities that remain and protect from damage.

3.2 CONSTRUCTION SURVEYING

A. Perform construction surveys and calculate volumes.

1. Pre-excavation survey: prior to roadway excavation and after removal of asphalt concrete.

2. Post-excavation survey: after roadway excavation.

3.3 EXCAVATING

A. Excavate to accommodate new structures and new pavement structural section.

B. Notify Owner and County of Sacramento of unexpected subsurface conditions and discontinue affected Work in area until notified to resume work.

C. Slope banks of excavations deeper than 4 feet to angle of repose or less until shored.

D. Do not interfere with 45 degree bearing splay of foundations.

E. Correct areas that are over-excavated and load-bearing surfaces that are disturbed; see Section 02316.

F. Grade top perimeter of excavation to prevent surface water from draining into excavation.

G. Remove excavated material that is unsuitable for re-use from site.

SACRAMENTO COUNTY, CALIFORNIA

EXCAVATION

02315 - 2

H. Stockpile excavated material to be re-used in area designated on site in accordance with Section 02310.

I. Remove excess excavated material from site according to Owner's instructions.

3.4 FIELD QUALITY CONTROL

A. Provide for visual inspection of load-bearing excavated surfaces before placement of foundations.

3.5 PROTECTION

A. Prevent displacement of banks and keep loose soil from falling into excavation;

maintain soil stability.

B. Protect bottom of excavations and soil adjacent to and beneath foundation from freezing.

END OF SECTION 02315

SACRAMENTO COUNTY, CALIFORNIA

FILL AND BACKFILL

02316 - 1

SECTION 02316 - FILL AND BACKFILL

A. Filling, backfilling, and compacting footings, slabs-on-grade, site structures, and to the lines and grades indicated in the contract drawings.

B. Backfilling and compacting for utilities outside the building to utility main connections.

C. Filling holes, pits, and excavations generated as a result of removal (demolition) operations.

A. Section 02310 - Grading: Site grading.

B. Section 02315 - Excavation: Removal and handling of soil to be re-used.

C. Section 03 30 00 - Cast-in-Place Concrete.

A. ASTM C 136 - Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates; 2006.

B. ASTM D 1557 - Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN m/m3)); 2002.

C. ASTM D 2487 - Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System); 2000.

D. ASTM D 2922 - Standard Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth); 2005.

E. ASTM D 3017 - Standard Test Method for Water Content of Soil and Rock in Place by Nuclear Methods (Shallow Depth); 2005.

1.4 DEFINITIONS

A. Finish Grade Elevations: Indicated on drawings.

1.5 SUBMITTALS

A. Materials Sources: Submit name of imported materials source.

B. Fill Composition Test Reports: Results of laboratory tests on proposed and actual materials used.

C. Compaction Density Test Reports.

1.6 PROJECT CONDITIONS

A. Provide sufficient quantities of fill to meet project schedule and requirements. When necessary, store materials on site in advance of need.

SACRAMENTO COUNTY, CALIFORNIA

02316 - 2

B. When fill materials need to be stored onsite, locate stockpiles where indicated.

1. Separate differing materials with dividers or stockpile separately to prevent intermixing.

2. Prevent contamination.

3. Protect stockpiles from erosion and deterioration of materials.

C. Verify that survey bench marks and intended elevations for the Work are as indicated.

2.1 FILL MATERIALS

A. General Fill: Conforming to County of Sacramento Standard Construction Specifications.

B. Structural Fill: Subsoil excavated on-site free of lumps larger than 3 inches, rocks larger than 2 inches, and debris.

1. If import fill is needed it shall consist of soil that has a Liquid Limit of less than 40 and a Plasticity Index of less than 15 (as determined by ASTM D 4318-98), is free of organic material, and contains no rocks or clods larger than 4 inches in greatest dimension.

C. Concrete for Fill: Lean concrete.

D. Granular Fill - Gravel: Pit run washed stone; free of shale, clay, friable material and debris.

1. Graded in accordance with ASTM D 2487 Group Symbol GW.

B. See Section 02310 for additional requirements.

A. Scarify and proof roll subgrade surface to a depth of 6 inches to identify soft spots.

B. Cut out soft areas of subgrade not capable of compaction in place. Backfill with lean concrete.

C. Compact subgrade to density equal to or greater than requirements for subsequent fill material.

D. Until ready to fill, maintain excavation and prevent loose soil from falling into excavation.

3.3 FILLING

A. Fill up to subgrade elevations unless otherwise indicated.

B. Employ a placement method that does not disturb or damage other work.

C. Maintain optimum moisture content of fill materials to attain required compaction density.

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02316 - 3

D. Soil Fill: Place and compact material in equal continuous layers not exceeding 8 inches compacted depth.

E. Slope grade away from structures minimum 2 inches in 10 ft, unless noted otherwise. Make gradual grade changes. Blend slope into level areas.

F. Correct areas that are over-excavated.

1. Load-bearing foundation surfaces: Fill with concrete.

2. Other areas: Use structural fill, flush to required elevation, compacted to minimum 95 percent of maximum dry density.

G. Compaction Density Unless Otherwise Specified or Indicated:

1. Under pavement: 95 percent of maximum dry density.

2. Under slabs-on-grade and similar construction: 90 percent of maximum dry density.

H. Reshape and re-compact fills subjected to vehicular traffic.

3.4 TOLERANCES

A. Top Surface of General Filling: Plus or minus 1 inch from required elevations.

B. Top Surface of Filling Under Paved Areas: Plus or minus 0.5 inch from required elevations.

3.5 FIELD QUALITY CONTROL

A. Perform compaction density testing on compacted fill in accordance with

ASTM D2922.

B. Evaluate results in relation to compaction curve determined by testing uncompacted material in accordance with ASTM D 1557 ("modified Proctor").

C. If tests indicate work does not meet specified requirements, remove work, replace and retest.

D. Frequency of Tests: 1 test per 500 square feet of fill area.

E. Proof roll compacted fill at surfaces that will be under slabs-on-grade and paving.

3.6 CLEAN-UP

A. Remove unused stockpiled materials, leave area in a clean and neat condition.

Grade stockpile area to prevent standing surface water.

END OF SECTION 02316

SACRAMENTO COUNTY, CALIFORNIA

TRENCHING FOR SITE UTILITIES

02317 - 1

SECTION 02317 - TRENCHING FOR SITE UTILITIES

A. Backfilling and compacting for utilities.

B. Trenching

1.2 RELATED SECTIONS

A. Section 02310 - Grading

B. Section 02315 - Excavation

C. Section 02316 - Fill and Backfill

1.3 REFERENCES

A. ASTM C 136 - Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates;

current edition.

B. ASTM D 1557 - Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN m/m3)); current edition.

C. ASTM D 2922 - Standard Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth); current edition.

D. ASTM D 3017 - Standard Test Method for Water Content of Soil and Rock in Place by Nuclear Methods (Shallow Depth); current edition.

E. ASTM D 4318 - Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils; current edition.

B. Fill Composition Test Reports: Results of laboratory tests on proposed and actual materials used.

C. Compaction Density Test Reports.

1.5 PROJECT CONDITIONS

A. Provide sufficient quantities of fill to meet project schedule and requirements.

When necessary, store materials on site in advance of need.

B. When fill materials need to be stored on site, locate stockpiles where designated.

1. Separate differing materials with dividers or stockpile separately to prevent intermixing.

2. Prevent contamination.

3. Protect stockpiles from erosion and deterioration of materials.

C. Verify that survey bench marks and intended elevations for the Work are as indicated.

SACRAMENTO COUNTY, CALIFORNIA

02317 - 2

D. Protect plants and other features to remain.

E. Protect bench marks, survey control points, existing structures, fences, and paving from excavating equipment and vehicular traffic

2.1 FILL MATERIALS

A. General Fill - Fill Type General backfill: Subsoil excavated on-site.

B. Sand - Fill Type Granular Fill: Conforming to State of California Highway Department standard.

2.2 SOURCE QUALITY CONTROL

A. Where fill materials are specified by reference to a specific standard, test and analyze samples for compliance before delivery to site.

B. If tests indicate materials do not meet specified requirements, change material and retest.

C. Provide materials of each type from same source throughout the Work.

B. Locate, identify, and protect utilities that remain and protect from damage.

C. See Section 02310 for additional requirements.

3.2 TRENCHING

A. Notify County of Sacramento of unexpected subsurface conditions and discontinue affected Work in area until notified to resume work.

B. Slope banks of excavations deeper than 4 feet to angle of repose or less until shored. Do not interfere with 45 degree bearing splay of foundations.

C. Cut trenches wide enough to allow inspection of installed utilities.

D. Hand trim excavations. Remove loose matter.

E. Remove large stones and other hard matter which could damage piping or impede consistent backfilling or compaction.

F. Remove lumped subsoil, boulders, and rock up to 1/3 cu yd measured by volume.

G. Remove excavated material that is unsuitable for re-use from site.

H. Stockpile excavated material to be re-used in area designated on site in accordance with Section 02310.

I. Remove excess excavated material from site.

3.3 PREPARATION FOR UTILITY PLACEMENT

A. Cut out soft areas of subgrade not capable of compaction in place. Backfill with general fill.

B. Compact subgrade to…