A-6.1 Specifications.pdf

USDA FOREST SERVICE PROJECT SPECIFICATIONS

Rev. Date 7/12 Plaskett Meadows Water System Repair 01 80 00 - 1/1 Project Clean Up

SECTION 01 80 00

PROJECT CLEAN UP

1. PART 1 - GENERAL

1.01 SUMMARY

A. This section covers the disposal of excess material and waste from water system repairs at Plaskett Meadows.

2. PART 2 - PRODUCTS (NOT USED)

3. PART 3 - EXECUTION

3.01 WORKMANSHIP

A. The contractor shall provide refuse containers and proper disposal at weekly intervals for solid wastes generated by Contractor’s employees.

B. All debris, excess soil and unused material shall be removed from the site.

All debris shall be disposed of off national Forest land in accordance with Local, State and Federal regulations. Site shall be restored to as near its original condition as possible.

C. Burning of material is not allowed.

D. At substantial completion, the road and parking area shall be cleaned of all dust and debris.

4. PART 4 - MEASUREMENT AND PAYMENT (NOT USED)

END OF SECTION

USDA FOREST SERVICE PROJECT SPECIFICATIONS

Rev. Date 7/12 Plaskett Meadows Water System Repair 01 90 00 - 1/1 Mobilization Payment Procedures

SECTION 01 90 00

MOBILIZATION PAYMENT PROCEDURES

1. PART 1 - GENERAL

1.01 SUMMARY

A. 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.

2. PART 2 - PRODUCTS (NOT USED)

3. PART 3 - EXECUTION (NOT USED)

4. PART 4 - MEASUREMENT AND PAYMENT

4.01 PROGRESS PAYMENTS WILL BE MADE AS FOLLOWS:

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

B. 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.

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

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

4.02 BASIS OF PAYMENT

A. Payment will be made under:

PAY ITEM DESCRIPTION PAY UNIT

01 90 00 Mobilization Lump Sum

USDA Forest Service PROJECT SPECIFICATIONS

Plaskett Meadows Water System Repair 33 11 13 – 1/7 Water Line and Appurtenances

SECTION 33 11 13

WATER LINES AND APPURTENANCES

1. PART 1 - GENERAL

1.01 SUMMARY

A. This section specifies pipe installation, drop inlet lid fabrication, horizontal well lid fabrication, excavation, bedding and backfill, tree removal, ditch improvement and fence repair.

1.02 PROJECT CONDITIONS

A. Sanitation facilities are available at the campground.

B. Equipment and material storage areas must be approved, in writing, by the Contracting Officer’s Representative prior to project commencement.

C. Contractor shall submit final horizontal well lid and drop inlet lid design to the COR for approval prior to fabrication.

1.03 CODES AND STANDARDS

A. In addition to laws, ordinances, codes and regulations of the United States Government the work performed under this section shall meet the requirements of the following:

1. California Plumbing Code 2016 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.

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.

Plaskett Meadows Water System Repair 33 11 13 – 2/7

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

4. Pipe Fittings: All change-in-direction fittings for PVC and galvanized pipe 3 inches and smaller shall be of the same size and material as the pipe it serves.

B. 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 VALVES

A. Valves shall be new, of size, material and type shown on the drawings or specified herein. All valves shall meet NSF requirements for drinking water systems. 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. Ball Valve: Two (2”), shall be lead free bronze body inline valves.

Unions shall be installed on the upstream and downstream side of each valve.

2.03 BEDDING AND BACKFILL MATERIALS

A. BEDDING MATERIAL: Select backfill for bedding shall consist of fine soil or sand.

B. SELECT BACKFILL: Select backfill for backfilling shall consist of fine soil or sand, without stones or dirt clods larger than 3/8 inch.

C. COMMON BACKFILL: Common backfill shall consist of inorganic material containing no rocks larger than 4 inches.

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2.04 LIDS

A. Steel: Lids shall be made from a gauge of sheet metal thick enough to withstand a 3’-5’ snow load without deflection or deformation and remain relatively lightweight; smooth rounded edges and as shown on drawings unless otherwise approved.

B. Finish: Powder coat; color, dark green.

C. Hinges: Type that allows for either side of lid to open 180 degrees; powder coated to match lid.

D. Handles: Metal, powder coated to match lid, smooth, rounded edges, 2” minimum clear space between lid and underside of handle, minimum 6” length.

E. Hasp: Metal, powder coated to match lid.

2.05 FENCE

A. Studded T-Post: 6 ½’, high strength, hot rolled steel.

B. Barbed Wire: 15.5 gauge, steel, 4 point, class 3 coating.

PART 3 - EXECUTION

3.01 EXCAVATION

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

OSHA.

B. All trenches shall be excavated in the same location as existing water lines and in reasonably close conformity with the lines shown on the Drawings. Any shifting or change from the alignment show on the Drawings must receive prior approval by the COR in writing. .

C. Trim roots flush with trench wall.

D. 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. 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 the trench to prevent material from falling into trench.

Plaskett Meadows Water System Repair 33 11 13 – 4/7

3.02 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. Lay pipe in continuous open trench. 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.

Plaskett Meadows Water System Repair 33 11 13 – 5/7

3.03 BACKFILLING

A. Pipes/pipe zone shall be backfilled with bedding material. Pipe zone shall be considered as 3 inches in any direction of the pipe. 6 inches of select backfill shall be placed over bedding material and be compacted in 6 inch maximum lifts.

B. Common backfill shall be placed and compacted in 12 inch maximum lifts.

Total backfill over pipe shall be 18” and top of trench left rounded 3 inches above ground grade, unless pipe is passed under pavement.

3.04 VALVE INSTALLATION

A. Valves shall be installed plumb, and well-spaced from other valves, inside of enclosures, and in such positions that they are readily accessible and can be easily and fully operated and maintained without binding on any part of the plumbing, other valves, other appliances, the enclosure or structure walls. Unless otherwise indicated on the drawings or in vertical lines, valve handles or levers shall be on top.

B. All valves shall be supported and braced as necessary to provide full support and prevent movement during normal operation. It shall be the responsibility of the Contractor to design, fabricate and install the necessary supports and bracing. Existing concrete slab inside valve box shall remain intact.

C. Each valve, its fittings and appurtenances, shall be kept free of dirt or other foreign materials. Each valve shall be tested for leakage and operation during the system tests.

D. Valve enclosures shall remain in place and undisturbed.

3.05 LEAK TESTING

A. General: All water lines, their fittings, valves and connections, and all appurtenances and devices constructed and installed under this contract shall be tested. After connection to existing systems, sufficient system testing shall be performed to assure the interconnection is acceptable. All tests shall be made in the presence of the Contracting Officer.

B. Preparation for Testing: Before the start of testing, the Contractor shall clean, inspect and remove all dirt or other foreign materials from all piping, valves, fittings and other appurtenance. All equipment shall be set up and approved by the Contracting Officer before testing begins.

Plaskett Meadows Water System Repair 33 11 13 – 6/7

C. If it is believed that foreign material may be in the line, all valves on the line shall be thoroughly flushed, and carefully inspected after flushing, to see that the entire operating mechanism of each valve is in good condition.

D. Preliminary tests: Preliminary testing of parts of piping and appurtenance shall be done as soon as possible after construction or installation, and in all cases before joints are concealed or otherwise enclosed within other work constructed under this contract.

E. Testing: All water pipelines, valves, appurtenances, tanks and the like shall be tested for water tightness, to no discernable leakage for 1 hour. Water and other pressure lines, at a minimum pressure of 125 psi or the operating pressure plus 20 pounds, whichever is greater. Failures shall be repaired or replaced, and testing done until acceptance is reached.

3.06 TREE REMOVAL

A. All saplings within 5 feet either side of the water line trench and within a 25 foot radius of the water tank shall be removed.

B. Saplings and small diameter trees shall be cut flush with the existing surface.

C. Debris shall be scattered across slope as shown on the drawings and as designated by the Engineer in the field.

3.07 FENCE

A. T-Posts shall be pounded to a 2 feet 3 inch depth below the surface.

B. Stretch 3 strands of barbed wire between T-posts. Wire strands shall be spaced 16” apart. Tighten wire stands until wire is taut with no visible sagging or deflection.

3.08 LID FABRICATION

A. Submit final lid design to COR for approval prior to fabrication.

B. Fabricate items with joints tightly fitted and secured. Make exposed joints butt tight, flush and hairline.

C. Grind exposed welds flush and smooth with adjacent finished surface.

Ease expose edges to small uniform radius.

D. Provide components for anchorage of metal fabrications. Fabricate anchorage and related components of same material and finish as metal fabrication.

Plaskett Meadows Water System Repair 33 11 13 – 7/7

E. Set work accurately in location, alignment, and elevation, plumb, level, true, and measured from established lines and levels.

F. Weld metal shall be thoroughly fused with the base metal along surfaces and edges of the union. Penetration shall be 1/8” thick minimum and shall be into the root of the joint.

G. Welds shall present a uniform surface, free of imperfections, without undercutting or overlapping and free from excessive oxides, gas pockets, and nonmetallice inclusions. Welds shall be made with the proper number of beads and passes to secure sount, thouroughly fused joints.

H. Welds showing cracks, slag inclusion, lack of fusion, bad undercut or other defects ascertained by visual or other means of inspection, shall be chipped out and properly replaced.

I. Thoroughly clean mill scale, rust, dirt, grease and other foreign matter from metal prior to powder coating.

3.08 DITCH RECONSTRUCTION

A. Re-construct ditch so that ditch is 18” wide by 10” deep with each side of the ditch sloping to the bottom of the center of the ditch, B. Spread excavated soil evenly across hillside and outside of fenced area.

Location will be identified by the Engineer in the field.

PART 4 - MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT

A. Measurement will be lump sum.

4.2 BASIS OF PAYMENT

A. Payment will be made under:

PAY ITEM DESCRIPTION PAY UNIT

33 11 13 Waterline and Appurtenances Lump Sum

33 11 13-1 Waterline and Appurtenances Linear Foot