Attachment C6a-HappyCampSpecs.pdf

04-1748-03011

SPECIFICATIONS

HAPPY CAMP HELIBASE

OPERATIONS & FACILITIES

IMPROVEMENT PROJECT

May 2005

Prepared for:

U.S.D.A. Forest Service Klamath National Forest

1312 Fairlane Road Yreka, CA 96097

Prepared by:

Winzler & Kelly Consulting Engineers 633 Third Street

Eureka, CA 95501 Tel: 707.443.8326 / Fax: 707.444.8330

Happy Camp Helibase Operations Facilities Improvements

00010-1 Table of Contents

TABLE OF CONTENTS

DIVISION 1 – GENERAL REQUIREMENTS

01010 – SUMMARY OF WORK

01040 – PROJECT COORDINATION

01060 – REGULATORY REQUIREMENTS

01300 – SHOP DRAWINGS AND SUBMITTALS

01700 – PROJECT CLEAN UP

DIVISION 2 – SITE CONSTRUCTION

02010 – SITE CONDITIONS

02016 – EXISTING UNDERGROUND STRUCTURES

02050 – CLEARING/GRUBBING/DEMOLITION/DEBRIS REMOVAL

02225 – SHORING AND TRENCH SAFETY

02300 – EARTHWORK

02660 – WATER DISTRIBUTION SYSTEM

02705 – PAVING AND RESURFACING

02731 –GRAVITY SEWER LINES

DIVISION 3 – CONCRETE

03100 – CONCRETE FORMWORK

03200 – CONCRETE REINFORCEMENT

03300 – CAST-IN-PLACE CONCRETE

DIVISION 4 – MASONRY

NOT USED

DIVISION 5 – METALS

DIVISION 6 – WOOD AND PLASTICS

06100 – ROUGH CARPENTRY

DIVISION 7 – THERMAL AND MOISTURE PROTECTION

Table of Contents 00010-2

DIVISION 8 – DOORS AND WINDOWS

08111 – STANDARD STEEL DOORS AND FRAMES

08211 – FLUSH WOOD DOORS

08561 – VINYL WINDOWS

08710 – DOOR HARDWARE

08800 – GLASS AND GLAZING

DIVISION 9 – FINISHES

09650 – RESILIENT FLOORING

09680 – CARPET

DIVISION 10 – SPECIALTIES

10155 – TOILET COMPARTMENTS

DIVISION 11 – EQUIPMENT

NOT USED

DIVISION 12 – FURNISHINGS

12356 – CASEWORK

DIVISION 13 – SPECIAL CONSTRUCITON

13121 – PRE-ENGINEERED METAL BUILDINGS

13122 – MODULAR BUILDING

DIVISION 14 – CONVEYING SYSTEMS

NOT USED

DIVISION 15 – MECHANICAL

15010 – GENERAL MECHANICAL REQUIREMENTS

15400 – BUILDING PLUMBING

15487 – LIQUIFIED PETROLEUM GAS SYSTEM

15500 – HVAC

15950 – TESTING, ADJUSTING AND BALANCING

DIVISION 16 – ELECTRICAL

16010 –GENERAL PROVISION ELECTRICAL

16050 – BASIC MATERIALS AND METHODS

**END OF TABLE OF CONTENTS**

01010-1 Summary of Work

SECTION 01010

SUMMARY OF WORK

PART 1 - GENERAL

1.01 PROJECT DESCRIPTION

A. This project consists of earthwork, site utilities, and installation of a new modular office building, pre-engineered metal building and paving for the for the U.S. Forest Service, Klamath National Forest, Happy Camp Helibase, as shown on the contract documents prepared by Winzler & Kelly Consulting Engineers. The work is covered under a base bid item and two options as follows:

Base Bid - All work shown in the contract documents, excluding options 1 and 2 described below.

Option 1 - Pre-engineered 32’ x 42’ metal building, including demolition of old foundation, installation of new foundation, concrete slab overlay, asphalt apron, coiling overhead doors, electrical panel B and associated wiring and fixtures and the LPG unit heater.

Underground LPG piping and all service conduits to within 5 feet of this building shall be included in the Base Bid. The potable water booster pump system and associated piping and electrical service as shown on drawings C4.0 and E1.0 shall also be included in the Base Bid.

Option 2 - Asphalt paving and curb, 3’ V-ditch, concrete gutter, underlying aggregate base and striping for the parking area shown on drawing C3.0. Excavation down to finished grade of asphalt shall be included in the Base Bid.

Additional excavation for the aggregate base and asphalt pavement shall be included in this option.

Patching of asphalt around new Operations Building and over trenches shall be included in the Base Bid. Striping and signing of the accessible parking space shall be included in the Base Bid.

B. The Contractor should carefully review all sections of the Specifications in order to completely understand the work and all constraints including schedule and material requirements.

C. Contractor is encouraged to proceed in an orderly and expeditious manner based on the schedule constraints shown on the plans or described in the Specifications. All work is to be constructed in strict accordance with the plans and specifications and subject to the terms and conditions of the contract.

Summary of Work 01010-2

D. The work shall conform to the specifications and the Contract Drawings. At the contractors option, conventional construction may be used in lieu of the specified modular construction for the Operations Building. If this choice is selected, complete structural slab, framing and sheathing shop drawings, stamped by a professional engineer registered in California, shall be required. Roof pitch may be increased up to 4/12 if necessary. Design loads and seismic requirements are included in the contract documents.

E. Location of Work:

The work is located at the Happy Camp Airport near the town of Happy Camp on Highway 96.

F. Contractor’s Duties:

1. Except as specifically noted, provide and pay for:

a. Labor, materials and equipment.

b. Tools, construction equipment and machinery.

c. Water, heat, and utilities required for construction.

d. All other facilities and services necessary for proper execution and completion of work.

2. Pay legally required sales, consumer and use taxes.

3. Conform to the requirements of all permits.

4. Secure and pay for, as necessary for proper execution and completion of the work, applicable permits and licenses.

5. Give required notices.

6. Comply with codes, ordinances, rules, regulations, orders and other legal requirements of public authorities which bear on performance of the work.

7. Promptly submit written notice to Engineer of observed variance of contract documents from legal requirements.

8. The Contractor shall obtain his own disposal site for replaced materials and other debris. Prior to the use of disposal sites the Contractor must submit a signed statement from the property owner granting permission to spoil materials and holding The U.S. Forest Service harmless from any and all damages that may result from the spoiling of materials. Note: Disposal sites within the Coastal Zone require a permit from the California Coastal Commission.

9. It is the Contractor's responsibility to obtain all necessary permits and comply with same.

01010-3 Summary of Work

1.02 CONTRACT SCHEDULE

A. On-site work may not commence until October 1, 2005 and must be completed 210 calendar days thereafter. Submittals and off-site fabrication can commence following receipt of the Notice To Proceed. Contractor shall submit for approval a bar chart construction schedule not later than 15 days after receipt of the Notice To Proceed.

1.03 UTILITIES

Contractor shall pay for and have provided all temporary power as required for construction of this work. Restrooms are available.

1.04 CONTRACTOR USE OF PREMISES

A. Construction corporation yards and/or storage areas are the responsibility of the

Contractor.

B. Confine operations at site to areas agreed by the Contracting Officer.

C. Do not encumber site with materials or equipment.

D. Do not load structure or roadway with weight that will endanger or render unusable any structures or roadways.

E. Assume full responsibility for protection and safekeeping of products stored on premises.

F. Move any stored products which interfere with operations of Owner or other Contractor.

G. Obtain and pay for use of additional storage of work area for operations.

H. Return all surface areas to their original condition upon completion of the work.

PART 2 - PRODUCTS

Not Used.

PART 3 – EXECUTION

Not Used.

PART 4 – MEASUREMENT AND PAYMENT

4.01 MEASUREMENT

Contractor shall be required to submit for approval a balanced schedule of values of sufficient

Summary of Work 01010-4 detail on which to base monthly progress payments.

4.02 PAYMENT

Progress payments will be made as follows:

A. Bonds and insurance may be invoiced 100%, upon proof of payment.

B. When 5 percent or more of the original contract amount is earned from other pay items, 50 percent of the amount for mobilization and General Requirements, or 5 percent of the original contract amount, whichever is less, will be paid.

C. When 10 percent or more of the original contract amount is earned from other pay items, 100 percent of the amount for mobilization, or 10 percent of the original contract amount, whichever is less, will be paid.

D. Upon completion of all work on the project, any unpaid amount for mobilization will be paid.

The total of all payments, including bonding, shall not exceed the original contact amount.

**END OF SECTION 01010**

01040-1 Project Coordination

SECTION 01040

PROJECT COORDINATION

1.01 SCOPE

A. This Section specifies administrative and supervisory requirements necessary for Project coordination including, but not necessarily limited to:

1. Coordination.

2. Contractor's personnel.

3. General installation provisions.

4. Cleaning and protection.

1.02 COORDINATION

A. Coordination: Coordinate construction activities included under various Sections of these

Specifications to assure efficient and orderly installation of each part of the Work.

Coordinate construction operations included under different Sections of the Specifications that are dependent upon each other for proper installation, connection, and operation.

1. Where installation of one part of the Work is dependent on installation of other components, either before or after its own installation, schedule construction activities in the sequence required to obtain the best results.

2. Where availability of space is limited, coordinate installation of different components to assure maximum accessibility for required maintenance, service and repair.

3. Make adequate provisions to accommodate items scheduled for later installation.

B. Conservation: Coordinate construction activities to ensure that operations are carried out with consideration given to conservation of energy, water, and materials.

1.03 SUBMITTALS

A. Coordination Drawings: Prepare and submit coordination Drawings where close and careful coordination is required for installation of products and materials fabricated offsite by separate entities, and where limited space availability necessitates maximum utilization of space for efficient installation of different components.

1. Indicate required installation sequences.

2. Comply with requirements contained in Section "Submittals."

Project Coordination 01040-2

Not Applicable

PART 3 - EXECUTION

3.01 GENERAL INSTALLATION PROVISIONS

A. Inspection of Conditions: Require the Installer of each major component to inspect both the substrate and conditions under which Work is to be performed. Do not proceed until unsatisfactory conditions have been corrected in an acceptable manner.

B. Manufacturer's Instructions: Comply with manufacturer's installation instructions and recommendations, to the extent that those instructions and recommendations are more explicit or stringent than requirements contained in Contract Documents.

C. Inspect materials or equipment immediately upon delivery and again prior to installation.

Reject damaged and defective items.

D. Provide attachment and connection devices and methods necessary for securing Work.

Secure Work true to line and level. Allow for expansion and building movement.

E. Visual Effects: Provide uniform joint widths in exposed Work. Arrange joints in exposed

Work to obtain the best visual effect. Refer questionable choices to the Contracting Officer for final decision.

F. Recheck measurements and dimensions, before starting each installation.

G. Install each component during weather conditions and Project status that will ensure the best possible results. Isolate each part of the completed construction from incompatible material as necessary to prevent deterioration.

H. Coordinate temporary enclosures with required inspections and tests, to minimize the necessity of uncovering completed construction for that purpose.

I. Mounting Heights: Where mounting heights are not indicated, install individual components at standard mounting heights recognized within the industry for the particular application indicated. Refer questionable mounting height decisions to the Contracting Officer for final decision.

01040-3 Project Coordination

3.02 CLEANING AND PROTECTION

A. During handling and installation, clean and protect construction in progress and adjoining materials in place. Apply protective covering where required to ensure protection from damage or deterioration at Substantial Completion.

B. Clean and maintain completed construction as frequently as necessary through the remainder of the construction period. Adjust and lubricate operable components to ensure operability without damaging effects.

**END OF SECTION 01040**

01060-1 Regulatory Requirements

SECTION 01060

REGULATORY REQUIREMENTS

1.01 SCOPE

A. This section describes the codes and standards which apply to the work in this contract. Additional codes and standard may be cited in sections to which they apply.

1.02 CODES AND STANDARDS

A. The following codes and standards shall apply to the work in this contract:

1. Uniform Building Code (UBC),1997 Edition with latest California Amendments

2. Uniform Plumbing Code (UPC), 200 Edition with latest California Amend.

3. Uniform Mechanical Code (UMC), 1997 Edition with latest California Amend.

4. National Electrical Code (NEC), 2001 Edition

5. Uniform Federal Accessibility Standards (UFAS).

6. American Institute of Steel Construction (AISC) 9th Edition.

7. American Iron and Steel Institute (AISI) 1986 Edition.

8. American Society for Testing and Materials (ASTM) latest edition.

9. Metal Buildings Manufacturers Association (MBMA).

10. Underwriter's Laboratories, (UL)

11. Architectural Aluminum Manufacturers Association (AMMA)

12. Steel Door Institute, Standard 100

13. American Water Works Association (AWWA)

14. National Fire Protection Association (NFPA)

15. Uniform Fire Code (UFC) 1997 Edition

16. American Gas Association (AGA)

B. Unless otherwise specified in this contract, reference to a specific standard or specification shall mean the latest edition or amendment in effect on the date of the invitation to bid.

1.03 DEFINITIONS

A. Administrative Authority as used in the Uniform Mechanical Code, the Uniform

Plumbing Code and the National Electrical Code will be the Contracting Officer.

B. Building Official as used in the Uniform Fire Code, Uniform Building Code and the Uniform Building Code Standards will be the Contracting Officer.

**END OF SECTION 01060**

01300-1 Shop Drawings and Submittals

SECTION 01300

SHOP DRAWINGS AND SUBMITTALS

1.01 SCOPE:

A. Perform all work necessary and required for the construction of the project as indicated.

Such work includes but is not limited to the following:

1. Shop Drawings

2. Samples

3. Catalog Data

1.02 SUBMITTALS

A. Submittals shall include all pertinent data required to understand the quality of components, dimensional relationships, integration with other materials, assembly techniques, structural aspects, color, finish, texture, and other such characteristics as may be necessary to fully describe the item and its intended use.

3.01 SUBMITTALS

A. Submittals and shop drawings shall be submitted in a timely fashion to allow 21 days for review by the Government. "No work shall begin until shops drawings and submittals are approved".

3.02 SHOP DRAWINGS

A. Original Submittal: Four copies of all shop drawings shall be submitted for approval as required under 3.01, above, prior to fabrication, installation or order placement to allow for checking and coordination.

Shop Drawings and Submittals 01300-2

B. Resubmittal: When a resubmittal is required, one print so indicating will be returned to the Contractor. After revision of the original, a new reproducible and four copies shall be submitted for approval.

C. Approval: Once approved, documents shall be returned to the Contractor and shall be complied with as noted. Variation from the approved documents shall be likewise submitted and approved before being carried out.

3.03 SAMPLES

A. Original Submittal: Two samples of each item for which samples are required, unless otherwise specified, shall be furnished for approval. Approval shall be obtained prior to delivery of the material to the project site. These samples shall be representative of the actual material proposed for use in the project and of sufficient size to demonstrate design, color, texture and finish as they will appear in the completed installation.

B. Resubmittals: All rejected samples will be returned upon request and any or all resubmittals required shall consist of two new samples.

C. Approval: Upon approval, one sample so noted will be returned and the remainder will be retained by the Contracting Officer until completion of the work. When requested, all approved samples will be returned for installation providing identity is maintained in an approved manner until final acceptance of the project.

3.04 CATALOG DATA

A. Submittals: Four copies of catalog data are required for the original submittal and each resubmittal. Catalog data shall be submitted along with shop drawings. One copy will be returned unless additional copies are requested.

B. Data: Each submittal shall have all pertinent data contained therein that is applicable to the item submitted for approval.

3.05 IDENTIFICATION

A. Catalog Data: Each separate catalog brochure or page submitted shall have the identification shown. Catalog of brochures submitted containing multiple items for approval need have only cover identification. In such cases the identification shall include page and catalog item numbers.

B. In the event one or more of the multiple items are not approved in any submittal, the additional copies required will not be requested until all items are approved.

**END OF SECTION 01300**

01700-1 Project Clean Up

SECTION 01700

PROJECT CLEAN UP

1.01 DESCRIPTION

A. This section covers the disposal of excess material from clearing and grubbing, excavation, building construction, cleaning or any other operation in which waste is generated.

1.02 MEASUREMENT AND PAYMENT

A. No separate payment shall be made for work specified in this section. Compensation for this work will be considered included in the payment for the completed project.

3.01 WORKMANSHIP

A. All debris and unused material shall be removed from the site. All debris shall be disposed of off National Forest land in accordance with local regulations. Site shall be restored to as near its original condition as possible.

B. Concrete trucks shall not be washed out in the project area. Burning of material is not allowed.

C. Building shall be swept clean of all debris and dust. Windows and roof shall be cleaned of all dust and marks.

**END OF SECTION 01700**

02010-1 Site Conditions

SECTION 02010

SITE CONDITIONS

1.01 RELATED INFORMATION

See related sections:

Clearing/Grubbing/Demolition/Debris Removal - Section 02050

1.02 INFORMATION ON SITE CONDITIONS

A. Information obtained by the Designer regarding site conditions, subsurface information, and existing facilities, and similar data are shown on the Plans.

1.03 CONTRACTOR'S RESPONSIBILITIES

A. The Contractor shall satisfy himself as to the nature and location of the work, the general and local conditions, particularly those bearing upon availability of transportation, disposal, handling and storage of materials, availability of labor, water, electric power, roads, work in sensitive environment and uncertainties of weather, tidal variations, or similar physical conditions at the site, the conformation and conditions of the ground, the character of equipment facilities needed preliminary to and during the prosecution of the work and all other matters which can in any way affect the work or the cost thereof under this contract.

B. The Contractor further shall satisfy himself as to the character, quality, and quantity of surface and subsurface materials to be encountered from inspecting the site, any exploratory work done by the Owner, as well as from information presented by the Plans and Specifications made a part of this contract. Any failure by the Contractor to acquaint himself with all the available information will not relieve him from responsibility for properly estimating the difficulty or cost of successfully performing the work.

1.04 ADDITIONAL INFORMATION

Prior to bidding, bidders may make their own subsurface investigations subject to time schedules and arrangements approved in advance by the Owner. Before any subsurface test holes are excavated, obtain permission from the Owner to perform such work.

**END OF SECTION 02010**

02016-1 Existing Underground Structures

SECTION 02016

EXISTING UNDERGROUND STRUCTURES

A. Related requirements specified elsewhere:

See also Section 02010 regarding site conditions.

See also Plans for location of utilities and underground structures as they are believed to exist.

1.02 CALIFORNIA ADMINISTRATIVE CODE

A. Section 1540(a)1 of Construction Safety Orders (Title 8) California Administrative Code, Section 1540 states:

(1) "Prior to opening an excavation, effort shall be made to determine whether underground installations; i.e., sewer, water, fuel, electric lines, etc., will be encountered and, if so, where such underground installations are located. When the excavation approaches the approximate location of such an installation, the exact location shall be determined by careful probing or hand digging; and, when it is uncovered, adequate protection shall be provided for the existing installation. All known owners of underground facilities in the area concerned shall be advised of proposed work at least 48 hours prior to the start of actual excavation."

B. The Engineer has determined the location of existing underground structures, as well as existing mapping permits. However, in line with California's Administrative Code, Section 1540, Contractor shall make the effort to determine the exact location of underground installations.

PART 2 - PRODUCTION - OWNERS

2.01 UTILITIES AFFECTED

A. General

The Underground Service Alert (USA), (800) 642-2444, shall be contacted at least

72 hours before any work commences.

Existing Underground Structures 02016-2

B. Gas and Electric

Pacific Power provides electric service. Gas service is through on site propane. It should be noted that where overhead service to a structure known requiring it, does not exist, then underground power service shall be assumed to exist.

C. Water and Sewer Service

Water and sewer service is supplied from the Happy Camp Community Services District.

The contractor may use on site water. The contractor shall provide temporary sanitary facilities for workers throughout the project.

D. Telephone

The on site telephone service is the responsibility of the Owner.

2.02 TEMPORARY FACILITIES

Contractor shall provide temporary facilities as needed to perform the work included in the contract documents.

3.01 LOCATION OF UTILITIES

A. The Owner has attempted to identify all existing locations that he has knowledge of and has shown these on the Plans.

3.02 CONTRACTOR RESPONSIBILITY

It may be expected that there will be some variation in location of existing utilities from that as shown on the Plans. Actual location can best be determined in the field after pre-marking by the various utilities affected. Contractor is required to contact Underground Services Alert (USA) before beginning any excavations.

The Contractor shall be responsible for determining the location of existing service laterals or appurtenances whenever the presence of such utilities on the site of the construction can be inferred from the presence of other visible facilities, such as building, meter and junction boxes, located on or adjacent to the site.

The Contractor shall promptly notify the Owner in writing in the event that the Contractor discovers utility facilities not identified by the Owner in the Contract Plans or Specifications.

02016-3 Existing Underground Structures

It should be understood that the various utilities are indicated on the Plans to show only the approximate location and must be verified in the field by the Contractor. It may be expected that there will be variation in location from that as shown on the Plans to the actual location. Actual location can best be determined in the field after premarking by the various utilities affected. The various utilities will cooperate with the Contractor to endeavor to familiarize the Contractor with all known underground utilities obstructions, but this will not relieve the Contractor from assuming full responsibility in anticipating and locating their actual location with respect to utilities which the Contractor must locate and identify under the provisions hereof.

**END OF SECTION 2016**

02050-1 Clearing/Grubbing/Demolition/ Debris Removal

SECTION 02050

CLEARING/GRUBBING/DEMOLITION/DEBRIS REMOVAL

Clearing, grubbing, demolition, and debris removal is required in the new building area.

1.02 QUALITY ASSURANCE

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

1.03 JOB CONDITIONS

A. Disposition of material:

1. Title to materials:

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:

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:

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

2. General:

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.

Clearing/Grubbing/Demolition/ 02050-2 Debris Removal

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.

3.02 COORDINATION AND SCHEDULING

Coordinate work with the Contracting Officer.

3.03 SAFETY

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

3.04 REMOVAL OF DEBRIS

Remove all debris from the site and leave the site in a neat and orderly condition.

PART 4 – MEASUREMENT AND PAYMENT

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

**END OF SECTION 02050**

02225-1 Shoring and Trench Safety

SECTION 02225

SHORING AND TRENCH SAFETY

A. Work included:

Shoring required for general safety, worker protection and protection of adjacent property from the hazards of caving ground. Includes:

1. Trench excavations

2. Structural excavations

B. Related requirements and work described elsewhere includes:

1. General and Supplemental General Conditions.

2. Division 1 requirements for temporary facilities, controls, public safety and convenience.

3. Division 2 sections pertaining to site conditions, earthwork, trench excavation and backfill.

1.02 CONTRACTOR'S RESPONSIBILITIES FOR SAFETY

A. The Contractor shall be solely and completely responsible for conditions of the job site, including safety of all persons (including employees) and property during performance of the work. This requirement shall apply continuously and not be limited to normal working hours.

B. Safety provisions shall conform to U.S. Department of Labor (OSHA), the California

Occupational Safety and Health Act, and all other applicable Federal, State, county, and local laws, ordinances, codes, the requirements set forth below, and any regulations that may be detailed in other parts of these Specifications.

C. Where any of these are in conflict, the more stringent requirement shall be followed.

1.03 PERMIT

For trenches or excavations of depth five feet or deeper, the Contractor shall obtain from the State Division of Industrial Safety a permit for such excavation; submit a copy of the permit to the Engineer, prior to initiating any work requiring said permit.

Shoring and Trench Safety 02225-2

1.04 SAFETY ORDERS

A. The Contractor shall have at the worksite, copies or suitable extracts of the Construction

Safety Orders of Cal-OSHA.

B. All work shall comply with the provisions of these and all other applicable laws, ordinances and regulations.

1.05 TRENCH SAFETY PLAN

A. For trenches and excavations 5 feet or more in depth, the Contractor shall submit to the engineer a detailed plan design of shoring, bracing, sloping, or other provisions to be made for worker protection from the hazards of caving ground.

B. Such plan shall be submitted at least 10 days before the Contractor intends to begin trenching or excavation work.

C. If such plan varies from the shoring system standards established by the Construction

Safety Orders, the plan shall be prepared, sealed and signed by a civil or structural engineer registered in California. Signed and sealed copies of calculations necessary to quality the system shall be submitted also.

D. Nothing herein shall be deemed to allow the use of shoring, sloping, or protective system less effective than that required by the Construction Safety Orders of the Division of Industrial Safety.

1.06 ENGINEER'S REVIEW

A. The duty of the Engineer to conduct construction review of the Contractor's performance is not intended to include a review or approval of the adequacy of the Contractor's safety supervisor, the safety program, or any safety measures taken in, on, or near the construction site.

B. The Engineer will review the submittal of the Contractor's proposed shoring system to verify the general scope of the work, to determine that qualified professional engineering services are used and to determine that appropriate construction techniques are proposed for use. This review shall not in any way be construed to relieve the Contractor from sole responsibility for the design and safety of such shoring.

1.07 CONTRACTOR'S SUPERVISOR

A. The Contractor shall appoint a qualified supervisory employee who shall be responsible to determine the shoring system which shall be used depending on local soil type, water table, etc.

02225-3 Shoring and Trench Safety

B. This supervisor shall have a minimum of five years experience in the directing of such excavation and shoring work.

1.08 PAYMENT

A. Payment for all work called for in this section will be considered as included with other bid prices. No separate compensation will be allowed.

**END OF SECTION 02225**

02300 - 1 Earthwork

SECTION 02300

EARTHWORK

PART 1 - GENERAL

1.01 SUMMARY

A. This Section includes the following:

1. Preparing subgrades.

2. Excavating and backfilling.

3. Drainage course for slabs-on-grade.

4. Subbase course for concrete walks and pavements.

5. Base course for asphalt paving.

1.02 DEFINITIONS

A. Backfill: Soil materials used to fill an excavation.

B. Base Course: Layer placed between the sub base course and asphalt paving.

C. Bedding Course: Layer placed over the excavated subgrade in a trench before laying pipe.

D. Borrow: Satisfactory soil imported from off-site for use as fill or backfill.

E. Drainage Course or Capillary Water Barrier: Layer supporting slab-on-grade used to minimize capillary flow of pore water.

F. Excavation: Removal of material encountered above subgrade elevations.

1. Additional Excavation: Excavation below subgrade elevations as directed by Contracting Officer. Additional excavation and replacement material will be paid for according to Contract provisions for changes in the Work.

2. Unauthorized Excavation: Excavation below subgrade elevations or beyond indicated dimensions without direction by Contracting Officer. Unauthorized excavation, as well as remedial work directed by Contracting Officer, shall be without additional compensation.

G. Fill: Soil materials used to raise existing grades.

H. Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, curbs, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface.

Earthwork 02300-2

I. Subbase Course: Layer placed between the subgrade and base course for asphalt paving, or layer placed between the subgrade and a concrete pavement or walk.

J. Subgrade: Surface or elevation remaining after completing excavation, or top surface of a fill or backfill immediately below subbase, drainage fill, or topsoil materials.

K. Utilities include on-site underground pipes, conduits, ducts, and cables, as well as underground services within buildings.

1.03 PROJECT CONDITIONS

A. Existing Utilities: Do not interrupt utilities serving facilities occupied by Owner or others unless permitted in writing by Contracting Officer and then only after arranging to provide temporary utility services according to requirements indicated.

PART 2 - PRODUCTS

2.01 SOIL MATERIALS

A. General: Provide borrow soil materials when sufficient satisfactory soil materials are not available from excavations.

B. Satisfactory Soils: ASTM D 2487 Soil Classification Groups GW, GP, GM, SW, SP, and SM, or a combination of these group symbols; free of rock or gravel larger than 3 inches in any dimension, debris, waste, frozen materials, vegetation, and other deleterious matter.

C. Unsatisfactory Soils: ASTM D 2487 Soil Classification Groups GC, SC, ML, MH, CL, CH, OL, OH, and PT, or a combination of these group symbols.

D. Backfill and Fill: Satisfactory soil materials.

E. Subbase: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; with at least 90 percent passing a 1- 1/2- inch sieve and not more than 12 percent passing a No. 200 sieve.

F. Base: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; with at least 95 percent passing a 1-1/2-inch sieve and not more than 8 percent passing a No. 200sieve.

G. Bedding: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; except with 100 percent passing a 1-inch sieve and not more than 8 percent passing a No. 200 sieve.

H. Drainage Fill: Washed, narrowly graded mixture of crushed stone, or crushed or uncrushed gravel; ASTM D 448; coarse-aggregate grading Size 57; with 100 percent passing a 1-1/2- inch sieve and 0 to 5 percent passing a No. 8 sieve.

02300 - 3 Earthwork

I. Detectable Warning Tape: Polyethylene film warning tape encasing a metallic core, minimum 6 inches wide and 4 mils thick, continuously inscribed with a description of the utility.

PART 3 - EXECUTION

3.01 PREPARATION

A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, freezing temperatures or frost, and other hazards created by earthwork operations. Provide protective insulating materials as necessary.

B. Provide erosion-control measures to prevent erosion or displacement of soils and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways.

C. Prevent surface water and ground water from entering excavations, from ponding on prepared subgrades, and from flooding Project site and surrounding area.

D. Protect subgrades from softening, undermining, washout, and damage by rain or water accumulation.

3.02 EXCAVATION

A. Excavate to subgrade elevations regardless of the character of surface and subsurface conditions encountered, including rock, soil materials, and obstructions.

1. If excavated materials intended for fill and backfill include unsatisfactory soil materials and rock, replace with satisfactory soil materials.

B. Excavate for structures, pavements, and walks to indicated elevations and dimensions.

Extend excavations for placing and removing concrete formwork, for installing services and other construction, and for inspections. Trim bottoms to required lines and grades to leave solid base to receive other work.

C. Excavate utility trenches to indicated gradients, lines, depths, and invert elevations of uniform widths to provide a working clearance on each side of pipe or conduit. Excavate trench walls vertically from trench bottom to 12 inches higher than top of pipe or conduit.

1. Excavate trenches deeper than bottom of pipe elevation, 6 inches deeper in rock, 4 inches deeper elsewhere, to allow for bedding course. Hand excavate for bell of pipe.

D. Proof roll subgrades, before filling or placing aggregate courses, with heavy pneumatic-tired equipment to identify soft pockets and areas of excess yielding. Do not proof roll wet or saturated subgrades.

Earthwork 02300-4

E. Reconstruct subgrades damaged by freezing temperatures, frost, rain, accumulated water, or construction activities.

F. Fill unauthorized excavation under foundations or wall footings by extending bottom elevation of concrete foundation or footing to excavation bottom, without altering top elevation. Lean concrete fill may be used when approved by Contracting Officer.

1. Fill unauthorized excavations under other construction or utility pipe as directed by Contracting Officer.

G. Stockpile borrow materials and satisfactory soil materials, without intermixing, in shaped, graded, drained, and covered stockpiles. Stockpile soil materials away from edge of excavations and outside drip line of remaining trees.

3.03 BACKFILLS AND FILLS

A. Utility Trench Backfill: Place, compact, and shape bedding course to provide continuous support for pipes and conduits over rock and other unyielding bearing surfaces and to fill unauthorized excavations.

1. Place and compact initial backfill of satisfactory soil material or subbase material, free of particles larger than 1 inch to a height of 12 inches over the utility pipe or conduit. Place and compact final backfill of satisfactory soil material to final subgrade.

2. Install warning tape directly above utilities, 12 inches below finished grade, except 6 inches below subgrade under pavements and slabs.

B. Fill: Place and compact fill material in layers to required elevations.

C. Uniformly moisten or aerate subgrade and each subsequent fill or backfill layer before compaction to within 2 percent of optimum moisture content.

1. Remove and replace, or scarify and air dry, otherwise satisfactory soil material that exceeds optimum moisture content by 2 percent and is too wet to compact to specified dry unit weight.

D. Compaction: Place backfill and fill materials in layers not more than 8 inches in loose depth for material compacted by heavy compaction equipment, and not more than 4 inches in loose depth for material compacted by hand-operated tampers.

E. Compact soil to not less than the following percentages of maximum dry density according to ASTM D 1557:

1. Under structures, building slabs, steps, and pavements, scarify and recompact top 12 inches of existing subgrade and each layer of backfill or fill material at 95 percent max density.

2. Under walkways, scarify and recompact top 6 inches below subgrade and compact each layer of backfill or fill material at 90 percent max density.

02300 - 5 Earthwork

3. Under lawn, unpaved areas, or spoils areas, scarify and recompact top 6 inches below subgrade and compact each layer of backfill or fill material at 85 percent max density.

F. Grading: Uniformly grade areas to a smooth surface, free from irregular surface changes.

Comply with compaction requirements and grade to cross sections, lines, and elevations indicated. Grade lawns, walks, and unpaved subgrades to tolerances of plus or minus 1 inch and pavements and areas within building lines to plus or minus 1/2 inch.

G. Subbase and Base Courses: Under pavements and walks, place subbase course on prepared subgrade. Place base course material over subbase. Compact to required grades, lines, cross sections, and thickness to not less than 95 percent of maximum dry unit weight according to ASTM D 1557.

H. Under slabs-on-grade, place sand course and vapor barrier on prepared subgrade.

Compact subbase and base course to not less than 95 percent of max density.

3.04 FIELD QUALITY CONTROL

A. Testing Agency: Contractor will engage a qualified independent testing and inspecting agency to perform field tests and inspections and to prepare test reports.

B. Allow testing agency to test and inspect subgrades and each fill or backfill layer. Proceed with subsequent earthwork only after test results for previously completed work comply with requirements.

C. When testing agency reports that subgrades, fills, or backfills have not achieved degree of compaction specified, scarify and moisten or aerate, or remove and replace soil to depth required; recompact and retest until specified compaction is obtained.

3.05 PROTECTION AND DISPOSAL

A. Protect newly graded areas from traffic, freezing, and erosion. Keep free of trash and debris.

B. Repair and reestablish grades to specified tolerances where completed or partially completed surfaces become eroded, rutted, settled, or where they lose compaction.

C. Where settling occurs before Project correction period elapses, remove finished surfacing, backfill with additional soil material, compact, and reconstruct surfacing.

D. Disposal: Remove surplus satisfactory soil and waste material, including unsatisfactory soil, trash, and debris, and legally dispose of it off Owner's property.

Earthwork 02300-6

PART 4 – MEASUREMENT AND PAYMENT

Payment shall include all labor, materials, and supervision for the earthwork required onsite as specified and shown on the Plans and shall be made as a percentage of completion at the time of progress payment application.

**END OF SECTION 02300**

02660-1 Water Distribution System

SECTION 02660

WATER DISTRIBUTION SYSTEM

PART 1 GENERAL

1.01 SCOPE

A. This work consists of furnishing and installing new potable water lines and booster pump as shown on the drawings and specified in this contract.

1.02 CODES AND STANDARDS:

A. In addition to the Codes and Standards listed under Section 01060, Regulatory

Requirements, work performed under this section shall meet the requirements of the following:

1. Uniform Plumbing Code 1998 Edition.

2. National Sanitation Foundation (NSF)

3. American society for Testing and Materials (ASTM)

4. International Association of Plumbing and Mechanical Officials (IAPMO)

5. American Water Works Association (AWWA)

a. AWWA Manual M20, "Water Chlorination, Principles and Practices."

b. AWWA Standard C-601-68.

1.03 LICENSED CONTRACTOR

A. All work under this section shall be performed by a licensed general contractor for the installation of underground utilities.

PART 2 - PRODUCTS

2.01 PIPE AND FITTINGS:

A. All materials shall be new, of size, material, and type called for in these specifications and shown on the drawings.

1. Galvanized Steel Pipe: Galvanized steel pipe and fittings shall be standard weight Schedule 40, with 150 pound class fittings, approved for use with potable water.

2. Polyvinyl Chloride (PVC) Solvent weld Pressure Pipe: PVC pipe with a nominal pipe size of 3 inches and smaller shall be solvent weld pressure pipe, Schedule 40.

Pipe shall be NSF approved and meet the requirements of ASTM D-1784 and D- 1785.

3. PVC Solvent Cements and Primer: Solvent cements and primer for use with PVC pipe shall comply with the Uniform Plumbing Code Installation Standard

Water Distribution System 02660-2

4. Polyvinyl Chloride (PVC) Pressure Pipe: PVC pipe with a nominal pipe size of 4 inches and larger shall meet the requirements of AWWA C900. All pipe shall be class 100 rated for 125 psi. Pipe shall be bell end containing a lock-in ring and spigot joint.

5. Pipe Fittings: All change-in-direction fittings for PVC pipe 3 inches and smaller shall be of the same size and material as the pipe it serves. All pipe 4 inches and larger shall make changes in direction with PVC bell end fittings containing a lock-in rings. Fittings shall be of the same size and class as to the pipe it serves.

F. Pipe Thread Sealing Paste: Pipe sealant compound shall be a non-hardening, non-seizing, and non-toxic sealing paste containing TFE-Fluoricarbon approved for use with potable water.

2.02 MARKING TAPE

A. Marking tape shall be 2 inches wide with imprint "Caution - Buried Waterline Below";

color shall be blue. Tape shall be as manufactured by Calpico Inc., or an approved equal.

B. Where more than one utility is located in a common trench marking type shall be 6 inches wide with imprint "Caution - Buried Utility Lines Below"; color shall be red.

2.03 VALVES

A. Valves and valve boxes shall be new, of size, material and type shown on the drawings or specified herein. All valves shall be equipped with handwheel or other operating devices.

Exensions shall be supplied for valves whose standard handle would exceed 12 inches below the top of valve enclosure.

1. SHUT-OFF VALVES: All waterlines 3 inches in diameter and smaller shall use Ball Valves. Ball Valve shall be bronze, bottom loaded, with pressure retaining stem, threaded ends, full opening and with teflon packing and seals. Valve shall conform to Federal Specification WW-V 35, Type II, Class A. For waterlines larger than 3 inches, the valve shall be iron body - bronze mounted, flanged ends, double disc parallel seat with four point wedging mechanism with handwheel, rated for minimum operating pressure of 150 psi.

2. PRESSURE REDUCING VALVES WITH WYE STRAINER: Water Pressure reducing valves shall be bronze body with an itrigual barrel type strainer. It shall have a pressure setting range of 10 to 35 PSIG. Valve shall have all the charactoristics of a ‘Watts” U5B.

2.04 VALVE BOXES

A. Boxes shall be precast concrete. Boxes shall be traffic rated with H20 cast iron frame and cover. Covers shall be marked "Water". Extensions shall be of the same material and manufacturer as the box unless otherwise specified herein. Size of box shall allow for a minimum of 6 inches clearance on all sides of valve and pipes.

02660-3 Water Distribution System

2.05 BEDDING AND BACKFILL MATERIALS

A. DRAIN ROCK: Drain rock material shall be uniformly graded, hard, durable, screened material varying in size from 3/4 to 1/2 inch. It shall contain no lumps of soil or clay and free of organic material.

B. Bedding and backfill shall be in accordance with Section 02300, Earthwork.

2.06 DISINFECTING AGENT

A. Disinfecting agent shall be calcium hypochlorite, sodium hypochlorite or elemental gaseous chlorine to produce a stock solution of known strength.

2.07 BOOSTER PUMP

A. MANUFACTURERS: Booster pump system shall be manufactured by PACO model

814A, Goulds, Berkeley, Deming, or approved equal.

B. TYPE: Booster pump system shall be an in-line, close-coupled centrifugal type for insertion in 2 inch diameter pipe.

C. CASING: Cast iron or bronze casting with stainless steel housing and intake, suction mounted check valve and mechanical seal to prevent leakage.

D. IMPELLER: Bronze impeller.

E. SHAFT: Stainless steel or bronze motor shaft and shaft sleeve.

F. MOTOR: Standard NEMA B open dripproof motor.

1. Characteristics: Minimum 1/2 horsepower, 230 volt, single phase, 60 Hertz.

G. PUMP: Close-coupled centrifugal type for compactness.

1. Operating Performance: 30 gpm flow capacity, 69 feet of total dynamic head (30 psi) [1-1/2 hp motor]

H. SCREENS: Stainless steel type.

I. PRESSURE TANK: 8.5 Gallon baffle type pressure tank with orifice/check valve

J. CONTROLS: NEMA 1 pannel enclosure, motor contactor, pressure switches.

Water Distribution System 02660-4

3.01 LAYING PIPELINE

A. Protection of pipe: All pipe and fittings shall be protected during storage and installation to prevent contamination. Care shall be taken during laying and joining to prevent dirt and other objectionable material from entering pipe. Cap or plug lines when work is not in progress.

B. No pipe shall be placed in the trench until the trench subgrade and bedding have been inspected and approved by the Contracting Officer.

C. Pipe installation shall conform with the manufacturer's installation requirements.

PVC pipe shall be cut square to insure proper assembly. PVC gasketed pipe shall be beveled with a plastic pipe pilot beveling tool, hand beveling will not be allowed. Pipe shall be assembled out of the trench and laid in the trench. Dropping pipe into trench after assembly will not be allowed. PVC spigot end pipe shall be assembled with its spigot ends pointing in the direction of flow. Solvent welded pipe shall be snaked in the trench.

Galvanized steel pipe and low alloy steel pipe, two inches and larger in diameter, shall be aligned in the trench prior to making joints. No pipe shall be bent to make deflections in the line. Only standard elbows, fittings, swing joints, or other suitable means of pipe deflection approved by the Contracting Officer will be allowed. When pipes are installed in a structure, they shall be adequately supported.

Pipe sleeves shall be provided for pipes passing through concrete.

D. Valves and other control devices shall be installed in the line where called for on the drawings. All devices shall be installed with unions to allow for ease of removal.

E. Changes in grade and alignment shall be made with appropriate fittings. The pipe may be bent to the minimum curve radii recommended by the manufacturer. Mechanically joined pipe shall not exceed 5 degrees deflection at the joint. Changes in alignment which cannot be made with standard fittings may be accomplished with swing joints installed so the lines drain. All pipe shall be laid with no sags or crests in gradient.

F. Thrust blocks for pipe sizes 4 inches and larger shall be cast in place concrete and installed at all changes in direction of 45 degrees or more, at stops or dead ends, and at valves. Thrust blocks shall be sized in accordance with the pipe munufacturers recommendations and soil conditions.

G. Pipes shall be backfilled in accordance with Section 02200, Earthwork. Pipe zone shall be considered as 3 inches in any direction of the pipe. Backfill for pipe zone shall be sand.