SeparateDocuments.pdf

USDA FOREST SERVICE PROJECT SPECIFICATIONS

SECTION 01100

SUMMARY OF WORK

PART 1 - GENERAL

1.01 SUMMARY

The Tiller Ranger District Office (Building No. 2008) recently experienced a flood resulting from failure of the existing galvanized water supply pipe embedded in concrete under the office. The pipeline failure and resulting intermediate repair (capping off the line and restoring water in part of the office) resulted in damage to walls, carpet stains, vinyl floor removal and cabinet removal. Work for this project will fully restore the water supply in the office and repair the damage caused by the floor and intermediate repairs as summarized below:

• Removal of existing valve, tee, and fittings shown in the tee rehabilitation (demo) detail of the Drawings.

• Supply and installation of new valve, tees, and fittings shown in the tee rehabilitation (proposed) detail of the Drawings.

• Exterior capping of existing waterline entering the Tiller Ranger District Office to bypass all of the existing galvanized lines.

• Exterior tie-in to water supply line located on the west side of the Tiller Ranger District Office. Route tie-in to enter the Tiller Ranger District Office

• Interior plumbing from new water line to tie-in to plumbing fixtures

• Supply and installation of individual on-demand water heaters at sinks

• Repair wall damaged by flood.

• Supply and install new interior vinyl flooring and rubber wall base where vinyl tiles were removed in the breakroom

• Install GOVERNMENT FURNISHED cabinetry in the breakroom.

See drawings, pictures, and descriptions for more information. Field verification of all work is required prior to bid.

The Contract will require the Contractor to do the following tasks in each Specification Section:

BASE ITEMS:

1. Specification 02081 Valves and Valve Boxes

a. Remove existing valve, tee, and fittings shown in the tee rehabilitation (demo) detail of the Drawings.

b. Supply and install new valves and valve boxes for the tee rehabilitation site and the new office water supply tie-in.

c. See Drawings, pictures, and descriptions for more information. Verify the extent of the work in the field prior to bid.

TILLER RANGER STATION REPAIRS 01100 - 1/7

2. Specification 02318 Potholing, Excavation and Backfill for Utilities

a. Locate all utilities for excavation and potholing activities

b. Ensure Forest Service has received cultural clearance prior to starting any potholing, excavation, and backfill activities. Contact COR to verify.

c. Complete potholing, excavation, and backfill activities to cap existing waterline entering the Tiller Ranger District Office to bypass all of the existing galvanized lines.

d. Complete potholing, excavation, and backfill activities to locate and tie-in to water pipe on the west side of the Tiller Ranger District Office and route tie-in to enter the Tiller Ranger District Office.

e. See Drawings, pictures, and descriptions. Verify the extent of the work in the field prior to bid.

3. Specification 01245 Core Drilling, Cutting & Patching; Specification 15050 Mechanical Basic Materials & Methods; and Specification 15400 Plumbing

a. Supply and install all plumbing and appurtenances to deliver water from the main tie-in to all interior fixtures.

b. Supply and install point-of-use water heaters at the locations shown in the

Drawings.

4. Specification Section 06010 Basic Electrial Wiring and Specification Section

16050 Basic Electric Materials

a. Supply and install point-of-use water heaters at the locations shown in the

Drawings.

OPTION ITEMS:

1. Specification 09250 Gypsum Wallboard and Paint

a. Supply and install new gypsum board in areas that were removed to repair flood damage. Prepare and paint gypsum board to match existing.

b. See pictures and descriptions. Verify the extent of the work in the field prior to bid.

2. Specification 09650 Vinyl Sheet Flooring

a. Supply and install vinyl sheet flooring in the Tiller Ranger District Office breakroom.

b. See pictures and descriptions. Verify the extent of the work in the field prior to bid.

3. Specification 12356 Casework

a. Supply installation materials to install GOVERNMENT FURNISHED cabinets, countertop, and backsplash in the breakroom as shown in the Drawings.

b. See attached Kitchen Classic Cabinet document for measurements of cabinets.

1.02 LOCATION

The Tiller Ranger District is located at 27812 Tiller Trail Hwy in Tiller, OR.

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1.03 GENERAL SITE CONDITIONS AND WEATHER

B. The elevation of the site is approximately 1,043 feet above mean sea level. Spring and Falls are generally mild but the construction site can experience heavy rain in the Summer and freezing temperatures with ice and snow storms in the Winter.

1.04 USE OF PREMISES

A. General: Contractor shall have full access to Builidng No. 2008 for construction operations as indicated by the Contract limits.

B. Check in: The General Contractor, Sub-Contractors and Suppliers must check in at the front desk of the main office.

C. Use of Site: Limit use of premises to work in areas indicated. Do not disturb portions of Project site beyond areas in which the Work is indicated.

1. Limits: Confine constructions operations to immediate area of work.

2. Government Occupancy: Allow for Government occupancy of Project site and building.

3. Driveways and Entrances: Keep driveways, parking areas, loading areas and entrances serving premises clear and available to Government, Government’s employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials.

D. Use of Existing Building: Maintain existing building in a weather tight condition throughout construction period. Repair damage caused by construction operations.

Protect building and its components during the construction period.

1.05 GOVERNMENT’S OCCUPANCY REQUIREMENTS

A. Full Government Occupancy: Government will occupy the site during entire construction period. Cooperate with Government during construction operations to minimize conflicts and facilitate Government usage. Perform the Work so as not to interfere with Government’s day-to-day operations.

1. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities. Provide an alternate route for obstructed walkways.

1.06 WORK RESTRICTIONS

A. Nonsmoking Building: Smoking is not permitted within any of the buildings and is only allowed in designated areas.

B. Work Hours: Contractor shall schedule work to be Monday through Friday between the hours of 8:00 AM and 5:00 PM. Any request for work outside of these hours must be approved by the Contract Officer (CO) 48 hours prior.

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1.07 CONTRACTOR’S RESPONSIBILITIES

A. Confine storage of materials to areas as approved by the COR.

B. Contractor shall provide adequate signing and barricades and take necessary safety measures to protect the public during all construction operations. Contractor shall minimize disturbance of all undisturbed areas.

C. Preservation of Natural Features and Existing Structures: Confines all operations to work limits of the project. Prevent damage to natural surroundings and structures.

Restore damaged areas, by repairing or replacing damaged trees and plants, structures or infrastructure at no additional expense to the Government.

1. Provide temporary barriers to protect existing trees and plants and root zones.

2. Do not remove, injure, or destroy trees or other plants without prior approval.

Consult with COR and remove agreed-on roots and branches that interfere with construction.

3. Do not fasten ropes, cables, or guys to existing trees.

4. Provide temporary protection to existing structures, finishes and surfaces during construction.

D. Existing Utilities: Notify COR and utility companies of proposed locations and times for excavation.

1. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

2. Interruption of Existing Utility Service: Notify COR, 48 hours in advance of any interruption of existing utilities.

1.08 CAMPING

A. Camping will not be permitted at the project site.

1.09 FIELD VERIFICATION

A. Field verify all new and existing conditions affecting the work of this contract before ordering products.

1.10 QUALITY CONTROL

A. Quality control for this project shall be the responsibility of the Contractor. The Contractor shall provide testing, inspections, etc. as necessary to ensure the construction meets the requirements of these Specifications, Drawings, and applicable construction codes and standards. In the event of any discrepancies between the Specifications, Drawings, and applicable codes and standards, the Contractor shall immediately notify the Contracting Officer (CO) of the discrepancy and work with the CO to yield a finished product that meets the applicable codes and standards while still

TILLER RANGER STATION REPAIRS 01100 - 4/7

meeting the original intent of the Specifications and Drawings. The Contractor shall provide test reports, inspection reports, certifications, photos, and all other documentation needed to demonstrate compliance with the Project Specifications and Drawings.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.01 SUBMITTAL PROCEDURES

A. This Section includes administrative and procedural requirements for submitting Shop Drawings, Product Data, Samples, and other miscellaneous information. The following requirements and procedures are required in addition to and as an explanation of FAR Clause 52.236-21 and AGAR Clause 452.236-76.

B. Transmit submittals in electronic (PDF) format by e-mail. E-mail submittals to kabarber@fs.fed.us and jcbeagle@fs.fed.us. Notify Contracting Officer (CO) if this procedure cannot be utilized.

C. The electronic submittal process is not intended for color samples, color-charts or physical material samples. Mail samples and color selection data to the following location:

Attn: Kayli Barber USDA Forest Service 2900 NW Stewart Parkway Roseburg, OR 97471

D. All submittals shall be accompanied by a submittal transmittal form.

E. Before submitting submittals to the CO, provide electronic approval stamp or Contractor signature block certifying the submittal complies with the requirements of the Contract Documents including verification of manufacturer/product, dimensions, and coordination of information with other parts of the work.

F. Submittals shall include items such as: Contractor’s, manufacturer’s, or fabricator’s Drawings; descriptive literature including but not limited to catalog cuts, diagrams, test reports; samples; certifications and other such required submittals.

G. Obtain written approval from the CO for the above submittals prior to ordering, construction, assembly, and delivery.

TILLER RANGER STATION REPAIRS 01100 - 5/7

H. Where manufacturer’s catalog sheets are used, indicate the specific items to be supplied either by arrow, encircled on sheet, or the inapplicable portion blocked out.

Identify where equipment is to be used, if not obvious.

I. Material submittals shall be sufficient to demonstrate compliance with the Specifications and Drawings. Include the following information, as applicable:

1. Manufacturer’s written recommendations.

2. Manufacturer’s product specifications.

3. Manufacturer’s installation instructions.

4. Manufacturer’s catalog cuts.

5. Wiring diagrams showing factory-installed wiring.

6. Compliance with recognized trade association standards.

7. Compliance with recognized testing agency standards.

J. Dimensions provided in the Drawings and Specifications are for informational purposes only. Jobsite dimensions, such as the dimensions between two surfaces on the jobsite, need to be verified by the Contractor. A dimension may be shown on the construction Drawings, but the actual dimension may vary, from very small to large increments, depending on jobsite conditions. It is extremely important that the fabricated item arrive on the jobsite ready to be installed without field modification.

Special care must be taken by the Contractor to measure and verify dimensions before preparing shop drawings and ordering materials.

K. Provide Shop Drawings with complete material and hardware lists. List material descriptions and quantities.

1. Provide Shop Drawings that are custom to the innate designs described in the

Specifications and Drawings.

2. Boiler plate Shop Drawings will not be accepted.

3. Show all fabrication, installation, and material details.

4. Address the appearance, performance, and prescriptive descriptions in the specifications and construction drawings.

5. Attach manufacturer’s catalog cut sheets and other manufacturer’s information that is needed to convey conformance to the Specifications and Drawings.

6. Include all FIELD VERIFIED dimensions, manufacturing conventions, and special fabrication instructions on the shop drawing. It should be clear to fabrication personnel what will be manufactured from the shop drawings alone.

3.02 DELIVERABLES

A. The work items for this Contract are listed in the Schedule of Items.

3.03 CONTRACT TIME

A. The Contract duration of this project is 120 days from Notice to Proceed (NTP).

TILLER RANGER STATION REPAIRS 01100 - 6/7

PART 4 – MEASUREMENT AND PAYMENT

4.01 METHOD OF MEASUREMENT

A. The basis for measurement and payment for all work performed under this contract shall be as listed in the Schedule of Items. Unless the work to be performed is specifically called out to be measured and paid for in the Schedule of Items, payment for such work shall be included in other applicable items of the Schedule of Items.

There shall be no separate measurement and payment for any such work not specifically listed in the Schedule of Items.

B. Items listed in the Schedule of Items as lump sum shall be on a lump sum all required basis. No direct measurement will be made for lump sum bid items.

C. The summation of all bid items under the Schedule of Items shall equal all work required by the Drawings and Specifications regardless of whether individual items of work are described under bid item descriptions or not. Payment shall be made at the contract unit bid or lump sum prices listed in the Bid. The prices listed therein shall be payment in full for all labor, tools, equipment, materials, etc., which are required to construct respective bid items according to the Contract Documents, including all work and materials incidental thereto.

D. Payment for unit bid items and lump sum bid items only partially completed at the end of monthly pay periods shall be based on a percentage of work completed as determined by the Government. An example is the construction of pipelines where the unit bid price includes the excavation and backfill of the trenches, installation of pipe, trench compaction, flushing and testing, although the Contractor may have installed certain footage of pipeline, yet has not completed the testing and/or restoration work.

The actual payment for that bid item will be reduced to reflect the actual amount of work completed.

END OF SECTION 01100

TILLER RANGER STATION REPAIRS 01100 - 7/7

SECTION 01200

MOBILIZATION

PART 1 - GENERAL

1.01 SUMMARY

A. The work consists of the mobilization and demobilization of the contractor's forces and equipment necessary for performing the work required under the Contract. This work shall consist of preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to the project site, and for all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project site.

B. This item also includes the cost of transportation of Contractor’s personnel, materials, and equipment to and from the job site during accomplishment of the project.

C. Mobilization will not be considered as work in fulfilling the contract requirements for commencement of work.

D. The cost of any required bonds may also be included in mobilization.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.01 GENERAL

A. The Contractor shall do the necessary preparatory work and operations, including but not limited to, those required for the movement of personnel, equipment, supplies, and incidentals to the project site to assure completion of the project within the required time frames.

3.02 BASIC MOBILIZATION

A. Mobilization for contact work at or near major administrative sites as identified in the contract documents.

PART 4 - MEASUREMENT AND PAYMENT

4.01 PROGRESS PAYMENTS WILL BE MADE AS FOLLOWS:

A. When 5 percent or more of the original bid amount is earned from other pay items, 25 percent of the amount for mobilization will be paid.

B. When 10 percent or more of the original bid amount is earned from other pay items, 50 percent of the amount for mobilization will be paid.

C. When 50 percent or more of the total amount bid is earned, 100 percent of the amount bid for mobilization will be paid.

D. The total of all payments shall not exceed the original contract amount for this

TILLER RANGER STATION REPAIRS 01200 - 1/2

item.

4.02 BASIS OF PAYMENT

A. Payment will be made based on the Contract Schedule of Items.

END OF SECTION

TILLER RANGER STATION REPAIRS 01200 - 2/2

SECTION 01245

CORE DRILLING, CUTTING & PATCHING

PART 1 – GENERAL

A. Work of this Section includes requirements for asphalt cutting, core drilling, cutting and patching of office facilities necessary to route the waterline to the building and to route the pipe to existing fixtures inside the building.

1.02 RELATED SPECIFICATIONS

A. 09250 Gypsum Wallboard B. 09901 Painting

1.03 SUBMITTALS

A. Provide a cutting plan showing proposed location and limits for cutting asphalt, core drilling the wall, and cutting interior wall needed to route the waterline as shown in the Drawings.

B. Plan shall include:

1. Project identification.

2. Location and Description of affected work.

3. Effect on structural or weatherproof integrity on completed or existing work.

4. Description of proposed work including:

a. Extent of cutting, patching, alteration, or excavation.

b. Trades who will execute cutting and patching work

c. Products proposed for use.

d. Extent of required refinishing.

e. Alternative to cutting and patching.

f. Waterproof value or integrity of any weather-exposed or moisture resistant work.

g. Efficiency, operational life, maintenance, or safety of any completed or existing work.

h. Visual qualities of any sight-exposed work.

i. Structural value or integrity of any completed or existing work.

C. Notify COR in writing at least 48 hours in advance of any work under this section.

D. Submit written notice to COR designating date and time of work will be performed.

PART 2 – PRODUCTS

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CORE DRILLING, CUTTING,

AND PATCHING

2.01 PIPE SLEEVES AND MODULAR SEALS

A. Manufacturer or Equal

1. Link Seal Sleeve WS-3-21

2. Link Seals LS200

PART 3 – EXECUTION

3.01 EXTENT OF WORK

A. Perform all cutting, fitting, and patching, including attendant excavation and backfill, required to complete work or to:

1. Make work fit properly together.

2. Uncover work for installation of ill-timed work.

3. Remove and replace defective work and work not conforming to

Contract Documents.

4. Remove samples of installed work for testing.

5. Provide penetrations through non-structural surfaces for mechanical and electrical work.

3.02 EXISTING CONDITIONS

A. Inspect existing conditions and identify work subject to damage or movement caused by proposed cutting and patching.

B. After uncovering work, inspect conditions affecting products installation or performance.

C. Report unsatisfactory and questionable conditions to the COR in writing; do not proceed with work until COR provides further instructions.

D. Beginning of cutting and patching implies acceptance of existing conditions.

3.2 PREPARATION

A. Maintain adequate temporary support necessary to assure structural integrity of affected work; provide devices and methods to protect other portions of project from damage.

B. Protect work exposed by cutting against damage and discoloration.

C. Provide protection from elements for areas, which may be exposed by uncovering, work; maintain excavations free of water.

3.3 PERFORMANCE

A. Provide proper surfaces for repairs.

B. Employ qualified installer or fabricator to perform cutting and patching of:

1. Weather-exposed or moisture-resistant surfaces.

2. Sight-exposed finished surfaces.

C. Restore cut or removed work with new products to provide work complete in accordance with Contract Documents. At penetrations of fire-rated wall, ceiling, or floor construction, completely seal voids with fire-rated material, full thickness of the construction element. Provide required fire resistant rating.

TILLER RANGER STATION REPAIRS 01245 2/3

D. Fit work air-tight to pipes, sleeves, ducts, conduits, and other surface penetrations.

E. Where patching occurs, refinish entire surface to provide even finish to match adjacent work as follows:

1. Continuous surfaces: refinish to nearest intersection.

2. Assemblies: refinish entire unit.

3.4 CUTTING STRUCTURAL FRAMING

A. Exposed members, including any columns, concrete and posts:

1. Not permitted, unless shown on Drawings or otherwise approved.

3.5 CLEANING AND REPAIRING

A. Including work of other Sections, clean, repair, and touchup, or replace when directed, products which have been soiled, discolored, or damaged by work of this Section.

B. Remove debris from Project Site upon work completion or sooner, if required by Owner.

4.1 METHOD OF MEASUREMENT

A. Core drilling, cutting and patching is incidental to waterline installation.

4.2 BASIS OF PAYMENT

A. No separate payment will be made for Core drilling, cutting and patching.

TILLER RANGER STATION REPAIRS 01245 3/3

SECTION 15050

MECHANICAL BASIC MATERIALS & METHODS

A. This section specifies includes basic requirements for materials and methods for repair, maintenance, replacement of and installation of plumbing equipment and systems. Additional materials and installation requirements for these items are covered in other sections of the specifications.

1. 02 RELATED SECTIONS

A. 15400 – Plumbing

1. 03 DEFINITIONS

A. Pipe Sizes.

1. All references to pipe sizes refer to the nominal diameter.

1. 04 SUBMITTALS

A. Prior to installation of new piping, fixtures and equipment, submit technical product data installation instructions, and recommendations from manufacturer, including data that materials comply with requirements for new mechanical equipment materials. Include pertinent dimensional and rating data relating to all mechanical equipment. Include all manufacturer’s testing and adjustment procedures.

B. Submit proposed layout of interior pipe routing. Include connections to existing fixtures and new fixtures.

C. Certificate: Furnish signed certificates stating that:

1. Systems have been thoroughly cleaned.

2. Tests of piping have been made and satisfactorily concluded.

D. Maintenance Data & Operating Instructions: Prior to final acceptance of installation of new equipment and fixtures, provide two (2) copies of manufacturer’s literature for approval. Cover each item of equipment and provide complete sets of manufacturer's instructions for operations and maintenance, including replacement parts lists, wiring diagrams, belt type and size if belt driven, type of bearing on unit and motor and control diagrams, bound in 3-ring notebooks. Include plumbing fixtures and trim showing catalog number, model, type, size, capacity and characteristics.

1. 05 QUALITY ASSURANCE

A. Plumbing work shall be completed by a plumber licensed in the State of Oregon.

B. All piping and components used in contact with drinking water shall comply

TILLER RANGER STATION REPAIRS SECTION 15050 - 1/3

BASIC MECHANICAL MATERIALS

AND METHODS

with ANSI/NSF 61, Drinking Water System Components - Health Effects.

All plastic pipe and components shall also comply with ANSI/NSF 14, Plastic Pipe Components and Related Materials.

C. Plastic pipe and components shall be marked with NSF certification for potable water use.

D. Electrical connections of all mechanical equipment shall be installed in compliance with Electrical Code and the equipment’s UL listing. Provide all necessary field wiring and devices from point of connection to building electrical wiring system.

E. Workmanship - Set equipment plumb and true with easy access for maintenance. Off-set piping as required to provide for proper and necessary clearances. Provide adequate clearances for repair and service of mechanical equipment.

F. Codes and Standards – comply with the provisions of the following codes, standards and specifications, except where more stringent requirements are shown specified:

1. State of Oregon Structural Specialty Code

2. State of Oregon Mechanical Specialty Code

3. State of Oregon Plumbing Code

4. State of Oregon Uniform Fire Code

5. NFPA and other standards referenced in the above codes

6. State of Oregon Energy Code.

1. 06 REFERENCES

A. American Society for Testing Materials (ASTM) B. International Conference of Building Officials (ICBO) C. Underwriters' Laboratories, Incorporated (UL)

1. 07 UTILITY COORDINATION

A. Coordinate all aspects of the incoming utilities for the building (water, gas, electrical, and sewer utility service) with the Forest Service.

1. 08 DELIVERY, STORAGE, AND HANDLING

A. Deliver to the project site materials with manufacturer’s labels intact and legible.

B. Store materials inside and protect from the weather, dirt and construction dust. When necessary to store outside, elevate well above grade and enclose with durable, waterproof wrapping.

PART 2 – PRODUCTS

2.1 MANUFACTURER

A. All pipe of a given type, material, and size shall be the product of a single manufacturer.

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3. 01 INSTALLATION - GENERAL

A. All materials shall be installed per manufacturer’s recommendation and instructions.

B. Follow all applicable codes, regulations and industry practice in locating and installing mechanical equipment and material so that completed installation presents the least possible hazard.

C. Maintain adequate clearances for repair and service to all equipment.

3. 02 EQUIPMENT ADJUSTMENTS - GENERAL

A. Adjust and calibrate all automatic mechanical equipment, mixing valves, flush values, float devices, etc. Adjust flow rates at each piece of equipment or fixture.

B. Lubricate equipment properly per manufacturer's recommendations prior to operating and placing in service.

3. 03 PROTECTION AND CLEANUP

A. Protect all work and materials against loss or damage. Close pipe openings with caps or plugs. At final completion, thoroughly clean and deliver all work and new equipment in new condition.

B. Do all necessary cutting, patching of existing building, and yard surfaces required for completion of mechanical work. Patch to match finish and color of existing adjacent surfaces.

C. Under no circumstances are beams, girders, footings, or columns to be cut for mechanical work items unless written approval is obtained from the

COR.

D. Cutting, patching and repairing for the proper installation and completion of mechanical work (including plaster, gypsum board, masonry, carpentry work, and painting) shall be performed by workers skilled in their trades.

E. Protect floors, walls, framing and sheeting where pipe cutting is conducted.

Clean- up metal cuttings, oil, etc. daily or as necessary to prevent debris from being tracked beyond the work area.

PART 4 - MEASUREMENT AND PAYMENT (NOT USED)

END OF

SECTION

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SECTION 15400

PLUMBING

A. Supply and install all plumbing and appurtenances to deliver water from the main tie-in to all interior fixtures.

B. Supply and install point-of-use water heaters at the locations shown in the Drawings.

1. 02 RELATED SECTIONS

A. 15050 - Mechanical Basic Materials & Methods

1. 03 DEFINITIONS

A. Pipe Sizes – All references to pipe sizes refer to the nominal diameter.

1. 04 SUBMITTALS

A. System purging and disinfecting activities report.

B. Product Data: For all pipe, transition fittings, dielectric fittings and equipment showing conformance to the specifications.

1. 05 QUALITY ASSURANCE

A. Work must be completed by a Plumber licensed in the State of Oregon.

1. 06 REFERENCES

A. ASTM F 876: Standard Specification for Cross-Linked Polyethylene (PEX) Tubing

B. ASTM F 877: Standard Specification for Cross-Linked Polyethylene (PEX) Plastic Hot-and Cold-Water Distribution Systems

C. ASTM F 2023: “Standard Test Method for Evaluating the Oxidative Resistance of Cross-linked Polyethylene (PEX) Tubing and Systems to Hot Chlorinated Water.”

D. ASTM F 1807: Standard Specification for Metal Insert Fittings Utilizing a Copper Crimp Ring for SDR9 Cross-Linked Polyethylene (PEX) Tubing

E. ASTM F 1960: Standard Specification for Cold Expansion Fittings with PEX Reinforcing Rings for Use with Cross-Linked Polyethylene (PEX) Tubing

F. ASTM F 2080: Standard Specification for Cold Expansion Fittings with Metal Compression Sleeves for use with PEX Pipe

G. ASTM F 2098: Standard Specification for Stainless Steel Clamps for Securing SDR9 Cross- Linked Polyethylene (PEX) Tubing to Metal Insert Fittings

H. ASTM F 2159: Standard Specification for Plastic Insert Fittings Utilizing a Copper Crimp Ring for SDR9 Cross-Linked Polyethylene (PEX) Tubing

1. 07 UTILITY COORDINATION

TILLER RANGER STATION REPAIRS 15400- 1/6

A. Coordinate all aspects of the incoming utilities for the building (water, electrical, and sewer utility service) with the serving utility, and the Forest Service.

1. 08 DELIVERY, STORAGE, AND HANDLING

A. Deliver to the project site materials with manufacturer’s labels intact and legible.

B. Store materials inside and protect from the weather, dirt and construction dust. When necessary to store outside, elevate well above grade and enclose with durable, waterproof wrapping.

PART 2 - PRODUCTS

2.01 MANUFACTURER

A. All pipe of a given type, material, and size shall be the product of a single manufacturer.

2.02 PIPE AND FITTINGS

B. PEX Pipe and Fittings (Water).

1. Pressure water pipe and fittings shall conform to the following unless otherwise noted on the Drawings:

a. Water Service Pipe: Water service pipe shall conform to NSF61 and shall conform to

ASTM F 876

b. Water Distribution Pipe: Water distribution pipe shall conform to NSF 61 and shall conform to ASTM F 877 or ASTM F 876

c. Fittings: Pipe fittings shall be approved for installation with the piping material installed and shall conform to ASTM F 1807, ASTM F 1960, and ASTM F 2080.

1) PEX reinforcing ring - ASTM F 1960

2) Cold expansion fittings that use a metal compression sleeve - ASTM F 2080

3) plastic fittings ASTM F 2159

4) metal insert fittings with o-rings ASTM 2434

2. Push type fittings are not acceptable

3. Below grade fittings shall be plastic or bronze suitable for the application and adaptable to

PEX

4. Support

a. Provide plastic bend supports for tight corners 5.

2.2 VALVES:

A. Minimum working pressure rating 150 psig W.O.G.

B. Manufacturer: Nibco, Hammond, Jenkins, Milwaukee, Stockham or approved equal.

C. General Valve Requirements: Grinnell valve numbers given to establish quality.

1. Gate Valve:

a. Two inch (2”) and Smaller: Bronze body, inside screw, rising stem, solid disk wedge, screwed bonnet, No. 3010.

b. Two and half inch (2½”) and Larger: Iron body, bronze trim, rising stem, flanged, No. 6020A.

2.3 Point-of-Use Hot Water Heater

TILLER RANGER STATION REPAIRS 15400- 2/6

A. Electric B. Manufacturer:

1. Eemax Model SP2412 as shown on the Drawings or approved equal.

2. Eemax Model EMT6 as shown on the Drawings or approved equal

3. Eemax Model Ex65 as shown on the Drawings or approved equal

C. Heater must have own independent circuit using a correctly rated breaker and wires suitable for at least 75 ºC operation.

D. Install according to Manufacturer’s instructions.

2.4 PIPING INSULATION

A. Pipe Temperatures minus 30 Degrees to 180 Degrees F – For piping exposed to outdoor temperatures, provide flexible, preformed, pre-split, self-sealing electrometric pipe insulation up to 2-1/8” ID, thermal conductivity of 0.27 BTU/hr. Apply in thickness to prevent condensation on the surface at 85 degree F and 70% RH. Provide aluminum shield on exterior installations.

2.5 BACKFILL MATERIAL

A. Subbase materials – a graded mixture of gravel, sand, crushed stone B. Finely-Graded Subbase Material – well graded sand, gravel, crushed stone, with 100% passing a 3/8’ sieve.

3.1 INSTALLATION - GENERAL

A. All materials shall be installed per manufacturer’s recommendation and instructions.

B. Follow all applicable codes, regulations and industry practice in locating and installing mechanical equipment and material.

C. Maintain adequate clearances for repair and service to all equipment.

3.2 PIPING

A. If not otherwise indicated, run piping in the shortest route, which does not obstruct usable space or block access for serving the building equipment, and avoid diagonal runs.

B. Install PEX piping with loop at each change of direction of more than 90 degrees.

C. Use a go/no go gauge on all PEX crimp connections.

D. Solder Cooper joints and fittings in accordance with recognized industry practice. Cut tube ends squarely.

E. Provide air vents at high points and where piping turns down in direction of flow.

F. Close openings in pipes with appropriate caps, plugs, or covers during storage and progress of work to preclude introduction of contaminants.

G. Provide valves and unions adjacent to tanks, batteries of plumbing fixtures and equipment, for disconnect purposes. Install valves with stems vertical wherever possible and in no case with stems below horizontal.

H. Provide gate valve and check valve on cold water supply to domestic water make- up connections.

TILLER RANGER STATION REPAIRS 15400- 3/6

I. Ream ends of pipe to full diameter.

J. Reduce pipe sizes using reducing tees or reducing fittings. Bushings not permitted except on tanks and similar equipment.

K. Provide escutcheons on pipes passing through walls, floors, and ceilings in finished areas and where piping is in counters, closets, or cabinets, and subject to view when doors are open.

Cover pipe sleeve and secure plate in position.

L. PEX Pipe Supports

1. Locate hangers, supports, and accessories to support pipelines, valves, and additional concentrated loads.

2. Always strap pipe down before bending. Straps and hangers hold pipe in position and prevent strain on fittings when the pipe is bent.

3. Straps can be as far as 6 feet apart if the pipe is continuously supported.

4. PEX should be supported or strapped every 32” when hung from floor joists or running across rafters. When supporting tube bundles, use a strap to support the entire bundle.

5. Vertical runs need support at every floor level.

6. Horizontal runs should be supported every 32 inches.

7. Since PEX tubing expands and contracts roughly one inch for every 100 feet of pipe

(can vary by brand) for every 10 degrees of temperature change, you must allow for expansion and contraction in long runs with a 12-inch horizontal offset.

8. Always cut the pipe longer than necessary to allow some slack for any contraction in the pipe. 1/8” per foot of length is usually enough. Strapping support should be firm but loose enough to allow the pipe to move back and forth as it expands and contracts.

9. Independently support piping at equipment so that no weight is supported by equipment.

10. Do not spring or bend pipe to fit conditions or to make up joints. Support piping in manner to prevent binding, undue swing, and transmission of vibration to structure.

11. Install minimum of one hanger or brace within two (2) feet from each change of direction in piping.

M. Piping Insulation

1. Insulate Cooper piping with glass fiber covering, 1” thick for cold water piping and 1” thick for smaller hot water piping; 1-1/2” for 1-1/4” and larger hot water piping.

2. Provide continuous insulation through hangers and supports with unbroken vapor seal on cold services. Seal to hanger inserts and to wall, ceiling or floor inserts.

3. Do not insulate underground piping.

3.3 FIXTURE INSTALLATION

A. Install fixtures in accord with manufacturer’s instructions.

B. All exposed fixture connections and piping shall be plated with polished chrome.

C. All fixtures in contact with finished walls shall be caulked with waterproof, white, non-hardening sealant which will not crack, shrink or change color.

D. Clean and flush traps. Thoroughly clean fixture surfaces with a non-abrasive cleanser.

3.4 EXCAVATING

TILLER RANGER STATION REPAIRS 15400- 4/6

A. Do not excavate for mechanical work until the work is ready to proceed without delay, to minimize the total time lapse from excavation to completion of backfill.

B. Excavate for piping 6” to 8” clearance on both side of pipe, except where otherwise shown on the drawings or required for proper installation of pipe joints, fittings, valves and other work.

C. Depth for Exterior Piping – excavate for exterior water bearing piping (water, sewer, drainage) so that the top of the piping will not be less than 3 feet vertical distance below finished grade.

D. Depth for Piping Under Concrete Slabs:

1. For piping 5” or less, do not excavate beyond depth indicate in drawings; piping to be supported on undisturbed soil, and hand excavate the bottom cut to accurate elevations.

E. Store excavated material (temporarily) near excavation, in a manner, which will not interfere with or damage the excavation work. Do not store under trees. Retain excavated material that complies with the requirements for backfill material. Dispose of excavated material that is in excess of quantity either needed for backfilling or does not comply with requirements for backfill material.

F. Maintain dry excavation for mechanical work, be removing water. Protect excavations from inflow of surface water.

G. Where subbase material is required below piping and mechanical work, compact by tamping to form a firm base for the work. Provide finely graded subbase material for pipe, valves and tanks.

H. Do not backfill until installed mechanical work has been tested and accepted, wherever testing is required. Backfill with finely graded subbase material to 6 inch above pipe and tanks. Do not backfill with frozen material.

3.5 TESTING

A. Water Piping B. Test all piping to a pressure equal to 100 psig. Hold test pressure for minimum of 4 hours without leakage. Arrange for the COR to witness the tests. Provide written report.

C. Leave piping exposed (unconcealed) for observation during testing. Expose any work that was covered or concealed before testing for the duration of the testing period.

D. Repair leaks & defects discovered during testing with new material and re-test until satisfactory results are obtained.

E. Testing of portions of the entire system is permitted provided clear documentation is included with the test reports showing the extent of the piping under test.

3.6 EQUIPMENT ADJUSTMENTS

A. As per Section 15050

3.7 PROTECTION AND CLEANUP

A. As per Section 15050 B. Potable Water Lines – Flush with clean water to eliminate grease, cuttings and foreign matter; run water until clear and free of all oil. Disinfect potable water as per State requirements.

3.8 NEW EQUIPMENT STARTUP

A. As per Section 15050

TILLER RANGER STATION REPAIRS 15400- 5/6

4.1 MEASUREMENT

A. Measurement will be lump sum.

4.2 PAYMENT

A. Payment will be made in accordance with the schedule of items.

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SECTION 02081

VALVES AND VALVE BOXES

1. PART 1 - GENERAL

1.01 SUMMARY

A. This Specification outlines guidance for review and evaluation of certain performance requirements. It does not include all materials and instructions that may be needed for the full installation of the work. It is the responsibility of the Contractor to examine field conditions, review the statement of work, refer to manufacturer’s installation instructions, review code requirements, and determine components needed to achieve a finished work item.

B. Remove existing valve, tee, and fittings shown in the tee rehabilitation (demo) detail of the Drawings.

C. Supply and install new valves and valve boxes for the tee rehabilitation site and the new office water supply tie-in.

1.02 RELATED SECTIONS

A. 15400– Plumbing

1.03 REFERENCE

A. International Plumbing Code B. Oregon Plumbing Code

1.04 QUAILITY CONTROL

A. Work under this section is to be performed by a professional plumber licensed in the state of Oregon.

1.05 DEFINITIONS

A. Abbreviations.

1. RS - Rising Stem.

2. NRS - Non-rising Stem.

3. WOG - Water, Oil and Gas.

1.06 PERFORMANCE REQUIREMENTS

A. Working Pressure.

1. 125 psi minimum for all valves unless otherwise shown.

1.07 SUBMITTALS

A. Submit sufficient descriptive literature to demonstrate compliance with these specifications for each type and brand of valve being furnished.

2. PART 2 - PRODUCTS

2.01 MATERIALS

A. Gate Valves: Under three inches.

TILLER RANGER STATION REPAIRS 02081 - 1/2

Valves and Valve Boxes

1. ASTM B62, Bronze.

2. Threaded connection.

a. RS, 125 pound, wedge disk; Crane 428, Jenkins 47 or approved equal.

b. NRS, 125 pound, wedge disk; Crane 438, or approved equal.

3. Flanged connection.

a. RS, 150 pound, wedge disk; Crane 429, Lunkenheimer 2157 or approved equal.

b. NRS, 150 pound, wedge disk; Crane 437, Jenkins 670 or approved equal.

A. Plastic Valve Box.

1. Armor Access Boxes, manufactured by US Filter, or approved equal.

2. Enclosure.

a. Adjustable, plastic, minimum of 5 inch diameter.

3. Cover.

a. Plastic, metal impregnated.

b. Plastic.

B. Precast Concrete Valve or Valve-Meter Box.

1. Oldcastle Precast, Inc., Utility Vault Division, (Valve or Meter Boxes) or approved equal.

3. PART 3 - EXECUTION

3.01 INSTALLATION

A. Gate Valves.

1. Install valves according to manufacturer's installation recommendations.

2. Install valves on horizontal pipelines with stems vertical and pointing upward.

3. Install valves on vertical pipelines with stem pointing toward the direction of access.

B. Valve Boxes

1. Install according to manufacturer's installation recommendations.

2. Make sure valve boxes are flush with finished grade.

3. Use extension ring for valve boxes over l5 inches diameter.

3.02 ACCESSORIES REQUIRED

A. Supply one galvanized cover wrench for every 4 or less locking valve boxes.

4. PART 4 - MEASUREMENT AND PAYMENT

4.01 BASIS OF MEASUREMENT AND PAYMENT

A. Measurement and payment will be made based on the Contract Schedule of Items.

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Valves and Valve Boxes

SECTION 02318

POTHOLING, EXCAVATION AND BACKFILL FOR UTILITIES

1. PART 1 - GENERAL

1.01 SUMMARY

A. This section specifies potholing, excavation and backfill for utilities, including excavation; furnishing, hauling and placing of backfill material

B. Excess or unsuitable excavated material shall be retained and stockpiled in a location designated by the COR.

C. Class of Material.

1. Material to be excavated for installation of utilities is unclassified.

D. The Contractor is responsible for any imported material. Any excess imported material used for backfill shall be removed from Forest Service Lands.

E. The following work is required under this section:

1. Locate all utilities for excavation and potholing activities

2. Ensure Forest Service has received cultural clearance prior to starting any potholing, excavation, and backfill activities. Notify the COR 7 days in advance of any digging potholing, excavation, and backfill activities. This activity may need to be monitored by a Government Employee or Tribal Official.

3. Complete potholing, excavation, and backfill activities to cap existing waterline entering the Tiller Ranger District Office to bypass all of the existing galvanized lines.

4. Complete potholing, excavation, and backfill activities to locate and tie-in to water pipe on the west side of the Tiller Ranger District Office and route tie-in to enter the Tiller Ranger District Office.

5. See Drawings, pictures, and descriptions. Verify the extent of the work in the field prior to bid.

1.02 SUBMITTALS

A. Provide an excavation plan for review and approval. Include the following items:

1. Protection of the site prior to excavation operations

2. Protection of the site during freezing or wet conditions

3. Procedure for repairing damage done during excavation

4. Emergency response plan for pipe failure

5. Equipment list for excavation and backfilling

6. Notification procedures:

a. Describe notification procedures before, during and after excavation of the following interest areas

1) Utilities

a) Power

TILLER RANGER STATION REPAIRS 02318 - 1/5

Excavation & Backfill for Utilities

b) Water and Waste Water Operations (FS Contractor)

c) COR

7. Approval is required from the COR before excavation begins, after excavation is completed, and before installation of piping and appurtenances.

B. Imported Material: Provide certification, test results, source and samples for all imported material.

1.03 PROJECT CONDITIONS

A. Contractor shall be responsible for locating all waterlines by potholing. The contractor shall be required to pothole all utilities by hand digging or core drilling and vacuum methods.

B. Any existing utility cut or damaged during the trenching operation shall be called to the attention of the COR. Remedial measures required because of Contractor’s negligence shall be at the Contractor’s expense. All exposed utility mains and lateral lines shall be backfilled in accordance with these specifications.

2. PART 2 - PRODUCTS

2.01 MATERIALS

A. Backfill Materials.

1. Backfill material shall contain no frozen or organic material.

a. Asphalt Surfaces.

1) Oregon Department of Transportation (ODOT), Hot Asphaltic

Concrete Class "C"; or Washington Department of Transportation (WSDOT), Class "B" or "F.”

2. Bedding Material.

a. Fine soil or sand, 100 percent passing the #4 sieve; or crushed rock less than 1/2 inch.

3. Select Material.

a. Fine soil or sand, 100 percent passing the #4 sieve.

4. Select Excavated Material.

a. Excavated material containing no rocks larger than 6 inches in largest dimension.

5. Topsoil.

a. Soil or loam containing no rock larger than 2 inches.

b. Loose, nonplastic soil free of roots, weeds, subsoil admixture, excessive organic matter, clods, stones, gravel or other material detrimental to plant growth. Maximum particle size 1/2 inch.

3. PART 3 - EXECUTION

3.01 CONSTRUCTION

A. Excavation.

1. Operations shall be in compliance with the requirements and restrictions of

OSHA, and the Oregon or Washington Occupational Safety and Health Code.

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2. Potholing shall not exceed 3.5 feet deep and 5 feet wide. Notify COR if potholing occurs out of this scope.

B. Overexcavation.

1. Restore to grade any overexcavation by backfilling with select material.

C. Salvage of Topsoil.

1. Suitable topsoil not containing well-bound pieces of sod may be conserved for use as topsoil backfill material.

D. Wet Excavation.

1. If water is encountered during trench excavation, provide adequate pumping equipment and piping to keep trench free from water and dispose of the water without damage to adjacent property. Separate payment will not be made for pumping of water from trenches or for excavation of material rendered unsuitable as a result of water encountered.

E. Unsuitable Material.

1. Where unsuitable material is encountered in the trench bottom, as determined by the COR, excavate the trench below grade to the depth specified by the

COR.

F. Backsloping, Sheeting and Shoring.

1. Backsloping of trench walls will be allowed only upon prior written approval of the COR.

2. Remove all shoring and sheeting when construction is completed. Withdraw to prevent trench wall caving while backfilling.

G. Excavated Material.

1. Pile excavated material at the side of the trench where it will give the best protection for the work. Leave adequate space between the toe of the spoil pile and edge of trench to prevent material from falling into the trench.

H. Backfill.

1. Do not place backfill until installation of meter has been approved by the COR.

2. Before compacting backfill other than sand, prepare material to a water content that will permit proper compaction by either aerating the material if it is too wet, or spraying the material with water if it is too dry. Thoroughly mix each lift before compaction to assure uniform distribution of water content. Do not compact material above pipe until there are 6 inches of cover over the pipe or cable.

3. Compact each lift (with the required number of passes of a mechanical vibrating tamper over the entire layer) (to the required density).

a. Select Material.

1) Place in lifts 6 inch or less and compact to a density of not less than 95 percent of the maximum density determined by

AASHTO T99.

b. Select Material.

1) Place in 6 inches lifts or less and compact with a minimum of 3 passes over the entire lift surface.

TILLER RANGER STATION REPAIRS 02318 - 3/5

c. Bedding Material.

1) Place in lifts 4 inches or less in thickness and compact with a minimum of 3 passes over the entire lift surface. Compact around pipe barrel and bells by hand tamping.

d. The number of tamper passes required may be reduced upon acceptance by the COR, if approved test method results demonstrate that the backfill compaction meets or exceeds the density of the natural ground adjacent to the trench. Any such testing shall be performed at the Contractor's expense.

4. Water compaction shall not be used.

3.02 REPAIR/RESTORATION

A. It is the responsibility of the Contractor to locate ALL utilities prior to excavation activities. Notify COR if a utility cannot be located by conventional means and/or by coordination with local utility providers.

B. Damage to existing underground utilities.

1. Stop all work associated with damage to existing utilities, and notify the COR.

Repair utility as directed by the COR.

C. Surface Restoration.

1. Restore all surfaces in kind.

2. Final Finish.

a. After the utility installation and backfill has been completed, finish all disturbed areas, except trench area required to be mounded, to a smooth, uniform grade and texture, well blended to the original contours, showing minimum evidence of construction activity.

D. Seeding.

1. Seed and fertilize all excavated and disturbed areas after restoration and scarifying.

2. Disturbed areas may be seeded or sodded at…