AmendmentNo.1Revised_Specs.docx

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Prospect Ranger Station Water and Wastewater System Replacement
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AG-04N7-S-15-0016
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Amendment No. 1 - Revised Specifications

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SECTION 00301 DEFINITION OF BID ITEMS

PART 1 - GENERAL

1.1 DESCRIPTION

A. The intent of this section is to explain, in general; what is and what is not included in a bid item; the limits or cut-off points where one bid item ends and another begins; and method of measurements and basis of payment for work items listed in the Schedule of Items

B. 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 the bid item descriptions or not.

C. Work:

1. Furnishing all labor, supervision, materials, equipment, and other incidentals necessary to successfully complete the project or any portion of it, and carrying out all duties and obligations imposed by the contract on the Contractor.

D. Payment:

1. For each individual item listed here and in the Schedule of Items, payment shall be full compensation for all work related to the particular item in accordance with these Specifications, as shown on the Drawings, and as staked in the field.

2. Measurement and payment for contract work shall be made only for and under those pay items included in the Schedule of Items. All other work and materials shall be considered incidental or as included in the payment for items shown.

E. Determination of Quantities:

1. The contractor shall perform, or cause to be performed, all measurement of quantities of materials incorporated into the work processes that are to be measured under the provisions of the contract.

2. Quantity Measurements:

a. The Contractor shall make all measurements for computation of quantities for all work items except those specified for payment by Designed Quantity (DQ) or Lump Sum Quantity (LSQ).

b. The Contractor shall compute the quantities for periodic progress payments; the Contracting Officer shall compute the quantities for the final payment based on measurements taken by the Contractor.

c. All Contractor measurements are subject to verification.

d. The Contractor shall submit all field notes, calculation sheets, and other data used to determine quantities.

e. The Contractor shall certify in writing as to the accuracy of the measurements and computations submitted.

3. The following measurements and calculations are used to determine contract quantities:

a. For individual construction items, longitudinal and lateral measurements for area computations shall be made horizontally or corrected to horizontal measurement unless otherwise specified. Measurements for geotextiles, netting and erosion control blankets shall be along slope lines.

b. The average end area method shall be used to compute volumes of excavation or embankment. However, if in the judgment of the Contracting Officer (CO), the average end area method is impractical, measurement shall be made by volume in hauling vehicles or by other three dimensional methods.

c. Structures shall be measured according to neat lines shown on the drawings or as altered by the CO, in writing, to fit field conditions.

d. For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, and under drains, measurements shall be made parallel to the base or foundation upon which the structures are placed. Pipes shall be measured along center of invert.

e. For aggregates weighed for payment, the tonnage shall not be adjusted for moisture content, unless otherwise provided for.

f. For standard manufactured items--such as fence, wire, plates, rolled shapes, pipe conduits--identified by gauge, weight, section dimensions, and so forth, such identifications shall be considered the nominal weights or dimensions. Unless controlled by tolerances in cited specifications, manufacturer's tolerances shall be accepted.

F. Unit of Measurement:

1. Payment shall be by units defined and determined according the U.S. Standard measure and by the following:

2. Cubic Yard (CY) - A measurement computed by one of the following methods:

a. Excavation, Embankment, or Borrow. The measurement computed by the average end area method from measurements made longitudinally along a centerline or reference line.

b. Material in Place or Stockpile. The measurement computed using the dimensions of the in-place material.

c. Material in the Delivery Vehicle. The measurement computed using measurements of material in the hauling vehicles at the point of delivery. Vehicles shall be loaded to at least their water level capacity. Leveling of the loads may be required when vehicles arrive at the delivery point.

3. Each (EA): One complete unit, which may consist of one or more parts.

4. Linear Foot (LF): Measurement of work along its length from point-to-point; parallel to the item being measured. Do not measure overlaps.

5. Lump Sum (LS): One complete unit, not directly measured. The bid amount is complete payment for all work described in the contract and necessary to complete the work for the item.

6. Pound (LB): For sacked or packaged material, measurement shall be the net weight as packed by the manufacturer.

7. Square Foot (SF): Measured on a plane parallel to the surface being measured.

8. Square Yard (SY): Measured on a plane parallel to the surface being measured.

G. Method of Measurement: One of the following methods of measurement for determining final payment is designated on the Schedule of Items.

1. Designed Quantities (DQ):

These quantities denote the final number or units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data includes the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units shown in the Schedule of Items may be authorized under any of the following conditions:

a. As a result of changes in the work authorized by the CO

b. As a result of the CO determining that errors exist in the original design that causes a pay item quantity to change by 15 percent or more.

c. As a result of the Contractor submitting to the CO a written request showing evidence of errors in the original design that cause a pay item quantity to change by 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is believed to be in error.

2. Actual Quantities (AQ):

These estimated quantities which are determined from actual measurements of completed work.

3. Lump Sum Quantities (LSQ)

These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They shall not be measured.

H. Capping and abandoning of existing water lines not specifically called out in a pay item but shown on the Drawings is incidental to the work and no separate pay item will be included for this work.

I. Providing valve keys shall be incidental to the work. Provide, at a minimum, two valve keys for each type/size of valve nut.

1.2 BID ITEM 1 & OPTIONAL ITEM 36 - MOBILIZATION

Measurement for payment for mobilization shall be on a lump sum all required basis. 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.

Measurement and payment: Payment shall be made on a lump sum basis as follows: 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 contact amount, whichever is less shall be paid. When 10 percent or more of the original contact 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, shall be paid. Upon completion of all on the project, any unpaid amount for mobilization shall be paid.

Payment shall be made at the lump sum price stated in the Schedule of Items.

1.3 BID ITEM 2 & OPTIONAL ITEM 37 – PROJECT CLOSEOUT/O&M MANUALS/ RECORD DRAWINGS

Measurement and payment for the Project Closeout, Operations and Maintenance Manuals, and Record Drawings shall be made on a lump sum basis shall include all project closeout items including the punchlist, all operations and maintenance manuals for the pump, control panels, motors, motor regulator, and other O&M manuals as required. Record drawings shall include all submittals and re-submittals of hard-copy drawings. Payment shall be made at the lump sum price stated in the Schedule of Items for “Project Closeout/O&M Manuals/ Record Drawings".

1.4 BID ITEM 3 – SITE DEMOLITION

Measurement and payment for Site Demolition shall be made on a lump sum basis as called for on the Drawings and shall include the demolition and removal of the existing water tank building, the pressure tank, electrical equipment, fire hydrants and housing, and all related items to those structures. Measurement and payment shall include disposal, haul, site work necessary to bring the water tank building site to grade, removal of concrete if necessary, and all fees related to disposal. Payment shall be made at the lump sum price stated in the Schedule of Items for “Site Demolition".

1.5 BID ITEM 4 – SITE PREPARATION

Measurement and payment for the Site Preparation shall be made on a lump sum basis as called for on the Drawings and shall include excavation, site grading, base rock, compaction, preparation for the pump house building, etc. Payment shall be made at the lump sum price stated in the Schedule of Items for “Site Preparation".

1.6 BID ITEM 5 & OPTIONAL ITEM 39 – ROCK EXCAVATION

Measurement for payment shall be made on a cubic yard basis for rock excavation. Area in cubic yards shall be computed as the actual depth of rock from the top of the rock encountered to the depth of the bottom of the pipe to the width as measured the inside pipe diameter plus 18 inches. Over excavation or excavating wider trenches shall not be paid for as additional excavation. When rock is encountered the contractor shall notify the CO immediately. The CO will note the depth of rock, the beginning and ending station that rock is encountered, and the size of the pipe. The measurement by the CO will be the pay amount. Payment shall be made at the unit price stated in the Schedule of Items for “Rock Excavation”.

1.7 BID ITEM 6 & OPTIONAL ITEM 38 – EROSION CONTROL

Measurement for payment for erosion control shall be measured on a lump sum basis and shall include all excavation, backfill, erosion control measures, monitoring of erosion control, replacement of the erosion control measures as necessary, removal of the erosion control measures at the completion of the project, restoration of the area, and other items. Payment shall be made at the unit price stated in the Schedule of Items for "Erosion Control".

1.8 BID ITEM 7 – GRAVEL SURFACE RESTORATION

Measurement for payment shall be made on a square yard basis for this bid items. Area in square yards shall be computed as the length along centerline of pipe times the allowable pay width of surface restoration. Areas which may overlap, either lengthwise or widthwise, will be included only once. Double payment for overlap areas will not be made. The pay width of each type of restoration will be limited to the actual width restored or the pay limit listed in the following table, whichever is less, unless otherwise specifically shown on the Drawings or approved in writing by the CO.

Pay Width Each Side Trench Depth* Feet of Centerline (feet)

0-4
2
4-6
3 1/2
6-8
5 1/2
8-10
7 1/2
10-12
9 1/2

* Trench depth is the depth from the ground surface to the invert of the pipe.

Any gravel restoration necessary due to the Contractor's operation, but outside the specified pay widths, shall be done at the Contractor's own expense and at no cost to the Government. The pay widths listed above shall in no way limit the width of the trench as required for safety. The above widths only define pay limits.

Payment will be made at the unit bid prices as stated in the Schedule of Items, for "Gravel Surface Restoration.” There will be no separate payment for topsoil replacement, seeding, mulching, etc. These items shall be considered incidental to the work.

1.9 BID ITEMS 8, 9, 10, 11, 12, 13, 14, 15 - ___ -INCH WATER LINE

Measurement for payment for water line shall be measured on a linear foot basis. Lengths of pipe shall be determined by measuring along the centerline of the pipe as installed from one end to the other. This item shall include all excavation, bedding, backfill, thrust blocks, pipe penetrations, fittings, unions, couplings, abandoning existing water lines, disposal and haul of excess excavated material, flexible couplings and other items, except valves, meters, pressure gauges, and sample taps, installed in the line as detailed on the Drawings. There is no specified pay depth for water lines. The depth shall be as shown on the Drawings and as required in the field for proper installation. No field measurements will be made for depth. Payment shall be made at the unit price stated in the Schedule of Items for " -inch Water Line" for the various sizes and types as listed.

Temporary removal and re-installation or relocation of signs, posts, etc., shall be considered incidental to the work.

There are two types of water line on this project; there are separate bid items for Schedule 40 and Schedule 80 pipe. The different pipe types are noted in the title.

1.10 BID ITEM 16 – PUMPHOUSE INTERIOR

Measurement for payment for the pumphouse interior shall be made on a lump sum basis as called for in these specifications and on the Drawings. Pumphouse interior shall include all items to make the Pumphouse interior complete except those items called for under individual bid items. Pumphouse interior components include the unit heater, exhaust fan, plug fittings, unions, wall brackets and mounting hardware, hose, hose rack, ball valves, hose bibs (including hose bibs on the building exterior and for RV sites), floor stands not associated with flow meters, pressure gauges on the piping system (not the pressure gauge in the pressure gauge assembly), tees, 1-1/2” schedule 80 PVC pipe on the building interior, reducers, flow switch, fittings, bushings, water level gauge at wells, and all other items necessary to make the Pumphouse interior complete.

Payment shall be made at the lump sum bid price stated in the Schedule of Items for "Pumphouse Interior."

1.11 BID ITEM 17 – WATER SYSTEM GATE VALVE

Measurement for payment for water system gate valves within the distribution system shall be made on a per each basis regardless of size for each valve installed and shall include the valve as specified herein, including excavation, bedding, backfill, connections, etc. Payment shall be made at the unit price stated in the Schedule of Items for "Water System Gate Valve."

1.12 BID ITEM 18 – PRESSURE GAUGE ASSEMBLY

Measurement for payment for pressure gauge assembly shall be made on a per each basis for each assembly installed. Payment shall be made at the unit price stated in the Schedule of Items for "Pressure Gauge Assembly."

1.13 BID ITEM 19 – SAMPLE TAP

Measurement for payment for the sample tap shall be made on a per each basis for each sample tap installed. Payment shall be made at the unit price stated in the Schedule of Items for "Sample Tap."

1.14 BID ITEM 20 – PRESSURE RELIEF VALVE

Measurement for payment for pressure relief valves shall be made on a per each basis for each valve installed. Payment shall be made at the unit price stated in the Schedule of Items for "Pressure Relief Valve."

1.15 BID ITEM 21 – 1-1/2- INCH SILENT CHECK VALVE

Measurement for payment for silent check valves shall be made on a per each basis for each valve installed. Payment shall be made at the unit price stated in the Schedule of Items for "1 1/2-inch Silent Check Valve."

1.16 BID ITEM 22, 23 – RESIDENTIAL WATER METER & FLOW METER

Measurement for payment for water meters, and flow meters shall be made on a per each basis regardless of size for each meter installed as shown on the Drawings. Residential water meters include meter, curb stop valve, angle valve, DCVA, vault and all other items needed to make the meters complete. Flow Meter (FM) includes the meter, meter support, connections, and all other items to make the meter complete.

Payment shall be made at the unit price stated in the Schedule of Items for "Residential Water Meter", and “Flow Meter.”

1.17 BID ITEM 24 – REDUCED PRESSURE BACKFLOW ASSEMBLY

Measurement for payment for Reduced Pressure Backflow Assembly (RPBA) shall be made on a per each basis for each RPBA installed. This item includes the RPBA unit, excavation, box, connections, FRP enclosure and all other items to make the RPBA complete.

Payment shall be made at the unit price stated in the Schedule of Items for "Reduced Pressure Backflow Assembly."

1.18 BID ITEM 25 – BLOWOFF/ FLUSHING HYDRANT

Measurement for payment for Blowoffs/ Flushing Hydrant shall be made on a per each basis for each blowoff or flushing hydrant installed. This item includes the pipe, concrete, excavation, box, valves, and all other items to make the blowoff or flushing hydrant complete. Payment shall be made at the unit price stated in the Schedule of Items for "Blowoff/ Flushing Hydrant."

1.19 BID ITEM 26 – BOLLARD

Measurement for payment for Bollards shall be made on a per each basis for each bollard installed. This item includes the pipe, concrete, painting, excavation, potholing, and all other items to make the bollard complete. Payment shall be made at the unit price stated in the Schedule of Items for "Bollard."

1.20 BID ITEM 27 – PRESSURE TANKS

Measurement and payment for the Pressure Tanks shall be made on a lump sum basis as called for on the Drawings and shall include the pressure tanks, installation, connections, couplings, gauges, drains, stands, valves, unions, pressure switch, and all other items to make the pressure tanks complete. Drain hoses and hose hangers shall be incidental. Payment shall be made at the lump sum price stated in the Schedule of Items for “Pressure Tanks".

1.21 BID ITEM 28 – CONCRETE PAD

Measurement for payment for the concrete pad in front of the pumphouse, shall be made on a square foot basis for each pad installed and shall include concrete reinforcement, forms, sealant, base rock, grading, and all other items necessary to make the concrete pad complete. Payment shall be made at the unit price stated in the Schedule of Items for "Concrete Pad."

1.22 BID ITEM 29 – POWER CONNECTION

Measurement and payment for the power connection shall be made on a lump sum basis as called for on the Drawings and shall include the connection into the power panel, conduit and wiring inside the building, manual transfer switch, building penetration and wiring to 5' from the face of the building, connectors, supports, and all other items to make the power connection complete. Payment shall be made at the lump sum price stated in the Schedule of Items for "Power Connection".

1.23 BID ITEM 30 – ELECTRICAL POWER AND LIGHTS FOR BUILDING

Measurement and payment for the power and lighting for the new pumphouse building shall be made on a lump sum basis as called for on the Drawings and shall include the power panel, internal conduit, wiring, receptacles, switches, cut-off switch, penetration sealants, lights, supports, alarms, and all other items to make the power and lights complete. Payment shall be made at the lump sum price stated in the Bid Schedule of Items for "Electrical Power and Lights for Bldg".

1.24 BID ITEM 31 – PUMP CONTROL PANEL

Measurement for payment for the well pump control panel shall be made on a lump sum basis for panel installed and shall include the enclosure, power connection to the panel, programming, shop drawings, gaskets, grommets, and all other items to make the panel complete. Payment shall be made at the unit price stated in the Schedule of Items for "Pump Control Panel".

1.25 BID ITEM 32 – MOTOR STARTER

Measurement for payment for the motor controller (also called motor regulator) shall be made on a lump sum basis as called for on the Drawings including and shall include the controller, enclosure, power connection, shop drawings, gaskets, grommets and all other items to make the controller complete. Payment shall be made at the lump sum price stated in the Schedule of Items for "Motor Starter".

1.26 BID ITEM 33 – FIBERGLASS RPBA ENCLOSURE

Measurement for payment for the RPBA enclosure shall be made on a per each basis for each enclosure installed and shall include the enclosure, shop drawings, gaskets, tie- down anchorage and all other items to make the cover complete. Payment shall be made at the unit price stated in the Schedule of Items for "Fiberglass RPBA Enclosure".

1.27 BID ITEM 34 – CONDUIT

Measurement for payment for conduit shall be measured on a linear foot basis. Lengths of conduit shall be determined by measuring along the centerline of the conduit as installed from one end to the other. This item shall include all excavation, bedding, backfill, fittings, wiring, conduit, conduit markers, location wire, disposal and haul of excess excavated material, couplings and other items, except handhole pull boxes, installed in the line as detailed on the Drawings. There is no specified pay depth for conduits. The depth shall be as shown on the Drawings and as required in the field for proper installation. No field measurements will be made for depth. Payment shall be made at the unit price stated in the Schedule of Items for "Conduit". Temporary removal and re-installation or relocation of signs, posts, etc., shall be considered incidental to the work.

1.28 BID ITEM 35 – HANDHOLE PULL BOXES

Measurement and payment for handhole pull boxes shall be made on a per each basis as called for on the Drawings and shall include the water tight pull box and lid, excavation, backfill, disposal of any excess excavation, etc. Payment shall be made at the unit price stated in the Schedule of Items for "Handhole Pull Box".

1.29 OPTIONAL BID ITEM 40, 4-INCH SANITARY SEWER

Measurement for payment for 4-inch sanitary sewer shall be measured on a linear foot basis. Lengths of pipe shall be determined by measuring along the centerline of the pipe as installed from one end to the other. This item shall include all excavation, bedding, backfill, pipe couplings, abandoning existing sanitary sewer lines, disposal and haul of excess excavated material, and testing. There is no specified pay depth for sanitary sewer lines. The depth shall be as shown on the Drawings and as required in the field for proper installation. No field measurements will be made for depth. Payment shall be made at the unit price stated in the Schedule of Items for "4-inch Sanitary Sewer". Temporary removal and re-installation or relocation of signs, posts, etc., shall be considered incidental to the work.

1.30 OPTIONAL BID ITEM 41 – SEWER MANHOLE

Measurement for payment for manholes shall be made on a per each basis for each manhole installed and shall include the fittings, pipe, frame and cover, concrete pad, excavation, bedding, and disposal of all excess excavation material.

Payment shall be made at the unit price stated in the Schedule of Items for "Sewer Manhole."

1.31 OPTIONAL BID ITEM 42 – SANITARY SEWER CLEANOUTS

Measurement for payment for sanitary sewer cleanouts shall be made on a per each basis for each cleanout installed and shall include the fittings, pipe, cleanout frame and cover, concrete pad, excavation, bedding, and disposal of all excess excavation material.

Payment shall be made at the unit price stated in the Schedule of Items for "Sanitary Sewer Cleanouts."

1.32 OPTIONAL BID ITEM 43 – 2-INCH FORCEMAIN

Measurement for payment for forcemain shall be measured on a linear foot basis. Lengths of pipe shall be determined by measuring along the centerline of the pipe as installed from one end to the other. This item shall include all excavation, bedding, backfill, pipe couplings, abandoning existing sanitary sewer lines, disposal and haul of excess excavated material, and testing. There is no specified pay depth for forcemains. The depth shall be as shown on the Drawings and as required in the field for proper installation. No field measurements will be made for depth. Payment shall be made at the unit price stated in the Schedule of Items for "2-inch Forcemain". Temporary removal and re-installation or relocation of signs, posts, etc., shall be considered incidental to the work.

1.33 OPTIONAL BID ITEM 44 – SEPTIC TANK

Measurement for payment for 1000 gal. septic tank shall be made on a per each basis for each tank installed and shall include the connections, fittings, pipe, tank frame and cover, excavation, bedding, disposal of all excess excavation material, and all other items to make the tank complete. Payment shall be made at the unit price stated in the Schedule of Items for "Septic Tank (1000 Gal.)"

1.34 OPTIONAL BID ITEM 45 – DUAL CHAMBER SEPTIC TANKS

Measurement for payment for 1500 gal. dual chamber septic tanks shall be made on a per each basis for each tank installed and shall include the connections, fittings, pipe, tank frame and cover, excavation, bedding, disposal of all excess excavation material, and all other items to make the tank complete. Payment shall be made at the unit price stated in the Schedule of Items for "Dual Chamber Septic Tanks (1500 Gal.)"

1.35 OPTIONAL BID ITEM 46 – EFFLUENT TREATMENT SYSTEM

Measurement and payment for the Effluent Treatment System shall be made on a lump sum basis as called for on the Drawings and shall include the excavation, installation, testing and startup, all materials necessary, connections, power connection conduit, connection to the existing power panel in building 2007, pumps as required for mixing and dosing, tanks (including dosing tank), and all other items to make the effluent treatment system complete. Payment for this item begins at the coupling of the sanitary sewer to the treatment system and ends at the coupling to the force main at the outlet of the dosing system. Payment shall be made at the lump sum price stated in the Schedule of Items for “Effluent Treatment System"

1.36 OPTIONAL BID ITEM 47 – SEPTIC TANK DEMOLITION

Measurement and payment for the Septic Tank Demolition shall be made on a per each basis as called for on the Drawings and shall include the pumping, excavation, fill, disposal, haul, disposal fees, surface restoration, and all other items necessary to demolish the existing septic tanks. Payment shall be made at the unit price stated in the Schedule of Items for “Septic Tank Demolition".

1.37 OPTIONAL BID ITEM 48 – DISTRIBUTION BOX

Measurement for payment for the distribution box shall be made on a per each basis for each box installed and shall include the connections, fittings, pipe, frame and cover, inspection ports, excavation, bedding, disposal of all excess excavation material, and all other items to make the distribution box complete. Payment shall be made at the unit price stated in the Schedule of Items for "Distribution Box."

1.38 OPTIONAL BID ITEM 49 – 4-INCH DRAINFIELD PIPE

Measurement for payment for 4-inch drainfield pipe shall be measured on a linear foot basis. Lengths of pipe shall be determined by measuring along the centerline of the pipe as installed from one end to the other. This item shall include all excavation, bedding, backfill, pipe couplings, disposal and haul of excess excavated material, and testing.

There is no specified pay depth for drainfield pipe. The depth shall be as shown on the Drawings and as required in the field for proper installation. No field measurements will be made for depth. Payment shall be made at the unit price stated in the Schedule of Items for "4- inch Drainfield Pipe".

1.39 OPTIONAL BID ITEM 50 – SANITARY SEWER LIFT STATION

Measurement and payment shall be on a per each basis as called for on the drawings. Measurement shall include couplings, control panels, pumps, electrical power, conduit, connection to an existing power panel within a residential building, calculations, valves, floats, and all other items necessary to make the pump station complete. Payment shall be made at the unit price stated on the Schedule of Items for "Sanitary Sewer Lift Station (bld. #1054 & #1055)".

1.40 OPTIONAL BID ITEM 51 – ASPHALT SURFACE RESTORATION

Measurement for payment shall be made on a square yard basis for this bid items. Area in square yards shall be computed as the length along centerline of pipe times the allowable pay width of surface restoration. Areas which may overlap, either lengthwise or widthwise, will be included only once. Double payment for overlap areas will not be made. The pay width of each type of restoration will be limited to the actual width restored or the pay limit listed in the following table, whichever is less, unless otherwise specifically shown on the Drawings or approved in writing by the CO.

Pay Width Each Side Trench Depth* Feet of Centerline (feet)

0-4
2
4-6
3 1/2
6-8
5 1/2
8-10
7 1/2
10-12
9 1/2

* Trench depth is the depth from the ground surface to the invert of the pipe.

Any asphalt restoration necessary due to the Contractor's operation, but outside the specified pay widths, shall be done at the Contractor's own expense and at no cost to the Government. The pay widths listed above shall in no way limit the width of the trench as required for safety. The above widths only define pay limits.

Payment will be made at the unit bid prices as stated in the Schedule of Items, for "Asphalt Surface Restoration." There will be no separate payment for asphalt concrete joint sealing, topsoil replacement, seeding, mulching, etc. These items shall be considered incidental to the work

PART 2 - PRODUCTS (NOT USED) PART 3 - EXECUTION (NOT USED)

END OF SECTION

Amendment No. 1
AG-04N7-S-15-0016

00301 - 2/13

DEFINITION OF BID ITEMS

Water and Wastewater Systems Prospect Ranger Station

SECTION 01010 SUMMARY OF WORK

PART 1 GENERAL

1.1 SUMMARY

A. BASE WORK for this project consists of:

1. Installation of new waterline and related valves, fittings and connection to existing service connections;

2. Site preparation for a (Government Furnished) precast concrete building “pump house”, piping connection to two existing wells, nine pressure tanks, pipe, fittings, interior electrical systems for the building including control panels, power, transfer switch, and lighting;

3. Installation of water level gauges at both wells, installation of fiberglass enclosure for new reduced pressure backflow assembly.

4. Demolition of structures.

B. SEWAGE SYSTEM OPTION ITEM: Installation of new septic tanks, an effluent filter treatment system, a new dosing tank and pumping system, sanitary sewer, electrical connections, conduit, and a new drainfield; demolition of existing septic tanks;

1. Erosion control and site restoration;

2. Other related items to complete the above work.

C. ASPHALT RESTORATION OPTION ITEM:

1. Restoring existing asphalt surfaces from project excavation.

D. Government Furnished Items: precast concrete building (pump house).

E. Listed below are the responsibilities for each entity involved with the building placement and preparation:

1. The Government’s responsibilities:

a. Purchase of building and installation services through supplier.

b. Coordination with supplier for all building dimensions and penetrations for water lines, electrical and exhaust fan.

c. Coordination with supplier and the Contractor for delivery date.

d. Inspection of work performed by supplier to verify building fabrication and installation.

2. Building supplier’s responsibilities:

a. Complete fabrication and delivery of the building.

b. Placement of building penetrations shown on drawings.

c. Placement of the building, including all crane work.

d. Installation of doors and door hardware.

e. Caulking, painting, etc. of building.

3. The Contractor’s responsibilities:

a. Initial site preparation.

b. Construction of aggregate building pad.

c. All survey work as required to establish horizontal and vertical building location in accordance the Drawings.

d. Provide onsite representative and surveyor (as needed) to work with the building supplier throughout the installation process to insure correct placement location.

e. All other site work adjoining the buildings including grading and aggregate surfacing as shown on the Drawings.

f. Placement of other building penetrations as required for the installation of conduit and other equipment.

g. Installation of all mechanical, electrical, and other equipment as shown on the Drawings.

h. Final building touch-up as needed after installation of all equipment.

1.2 LOCATION

A. This project is located at the Prospect Ranger Station. The Ranger Station is located on U.S. Highway 62 approximately 41 miles northeast of the City of Medford in Jackson County, Oregon.

1.3 GENERAL SITE CONDITIONS AND WEATHER

A. The elevation of the project is approximately 2,650 feet above mean sea level. The construction site can experience snowfall and cold temperatures, with snow possible on the ground typically from November through March.

B. In-depth soil surveys have not been performed; however, materials in the project are excavatable, bearing primary alluvial materials and rock outcroppings. Subsurface materials could include sands, gravels, silts/clays, boulders, rock, etc. Well logs are available.

C. In-depth water table surveys have not been performed; however, if water is encountered during excavation, the Contractor shall perform adequate dewatering to keep the excavation free from water and dispose of the water without damage to property. During fire season, additional restrictions may apply to the work. Additional information regarding these restrictions can be found in Section J of this Contract.

1.4 USE OF PREMISES

A. General: Contractor shall have limited use of premises for construction operations, including use of project site, during construction period. Contractor's use of premises is limited by the Government's right to perform work or to retain other contractors on portions of project and by the use of the residents and workers at the site.

B. Contractor shall at all times conduct his operations to ensure the least inconvenience to the public and employees. Road closures will not be permitted.

C. Confine storage of materials to areas as approved by the Contracting Officer (CO).

D. 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 areas.

E. Preservation of Natural Features: Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, 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 the CO and remove agreed-on roots and branches that interfere with construction.

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

4. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

F. Existing Utilities: Notify the CO and utility companies of proposed locations and times for excavation.

1. Contractor shall be responsible for locating and preventing damage to known utilities. See Section 02318- Excavation and Backfill for Utilities

2. Interruption of Existing Utility Service: Notify the CO, 72 hours in advance of any interruption of existing utilities. Utility shut off shall be limited to 6 hours per occurrence, or as approved by CO.

1.5 FIELD VERIFICATION

A. Field verify all new and existing dimensions and new and existing utility locations/elevations affecting the work of this contract before ordering products.

PART 2 PRODUCTS NOT USED PART 3 EXECUTION NOT USED

END OF SECTION

01010 - 3/3

SUMMARY OF WORK

Water and Wastewater Systems Prospect Ranger Station

SECTION 02531

SANITARY SEWER MANHOLES, FRAMES AND COVERS

PART 1 GENERAL

1.1 DESCRIPTION

A. The work of this section specifies construction of sanitary sewer manholes, frames, and clean outs.

1.2 SUMBITTALS

A. Submit product information as specified in Section 01330

PART 2 PRODUCTS

2.1 MANHOLES

A. Provide manhole risers and sections minimally sized in accordance with proposed septic system.

1. ASTM C478.

B. Manhole Frames and Covers.

1. Conform to ASTM A48 and the following:

a. Frame and Cover Design -Designed to support street traffic.

b. Marking - "S" or "Sewer" on top, Vented with maximum of 2 holes

c. Frame Size - Sized to fit a nominal 24 inch manhole opening.

d. Manhole Couplings.

1) Rubber ring, Fernco or approved equal; Lawson Davis or approved equal.

C. Precast Concrete Sections and Base.

1. Keylock joint system ASTM C478 or approved equal.

D. Joint Seal Material.

1. Flexible plastic joint sealing compound, 1/4 inch thick and a minimum of 3 inch wide, such as RAM-NEK or approved equal, ASTM C443.

2.2 CLEANOUTS

A. 4 Inch Cleanout.

1. Cover and Cover Ring Cast Iron.

Water and Wastewater Systems Prospect Ranger Station 02531-3/3

SANITARY SEWER MANHOLES, FRAMES AND COVERS

2. Pour a 24-inch square, 6-inch deep concrete pad around all cleanouts.

a. Oldcastle Precast, Inc., Utility Vault Division; Olympic Foundry, Inc., or approved equal (roadway valve box).

PART 3 EXECUTION

3.1 PREPARATION

A. Compaction of Earth Under Manholes.

1. Prior to construction of the manhole, compact the ground underlying the manhole base, using a mechanical tamper, with 3 passes minimum over the entire surface.

B. Placement of Bedding Material.

1. Compact bedding material with a minimum of 3 passes over the entire surface with a mechanical tamper.

3.2 CONSTRUCTION

A. Forming of Gravity Manhole Base and Invert.

1. Form the invert to a half circle before initial set of the concrete with a smooth transition from inlet to outlet.

2. Apply final grout coat to the manhole base with a sack finish.

3. Apply Portland Cement grout to the joint between the sewer pipe and the manhole wall inside and out to insure a watertight seal.

3.3 MANHOLE INSTALLATION

A. Place the first manhole riser section before the concrete base has taken its initial set. Bed the ring into the concrete. Apply Portland Cement grout inside and out to insure a watertight seal.

B. Place the manhole riser and cone sections together using full bed of Portland Joint compound or rubber gasket to insure a watertight joint.

C. When using rubber gasket material, prime both ends of manhole cone and risers. Apply primer to clean and dry concrete. Install rubber gasket in accordance with manufacturer's recommendations.

D. Use flat slab top for manholes 5 feet or less in height, and eccentric cone section for manholes over 5 feet in height. Height, measured from centerline invert to rim elevation, will be used to determine manhole top configuration.

3.4 CLEANOUT INSTALLATION

A. Install cleanouts at every bend and every 100' of pipe.

B. Install cleanout and pad flush with surrounding ground.

3.5 INSPECTION AND APPROVAL

A. Do not begin backfill until pipeline installation is accepted in writing by the COR.

END OF SECTION

SECTION 02540

SANITARY SEWAGE TREATMENT SYSTEM

1.1 DESCRIPTION

A. Scope. This specification covers the furnishing and installation of a complete sanitary sewage system to service the ranger station (building 2007) and two residences (1054 and 1055).

B. The septic tank/sanitary sewer system includes multiple septic tanks, multiple pump stations, electrical conduit and power, sanitary sewer gravity pipe, sanitary sewer force main, a package treatment system, a distribution box, and a drainfield.

C. Installation of the septic/sanitary system includes verifying flows, checking ground elevations, optimizing the system to minimize costs and maintenance, protection of existing trees, and verifying pipe sizes. The system described in these specifications and shown on the accompanying drawings is based upon the best available information.

D. This work includes, unless otherwise specified, furnishing all labor, materials, tools, equipment, and incidentals required to construct a complete septic tank system line ready for service as outlined on the drawings and in the specifications.

E. The Contractor shall be responsible for damage to any existing drainfield as noted in Section 01010. Locate all drainfield prior to work.

F. Contractor is responsible for obtaining all required electrical permits/inspections; DEQ system layout approval, inspections and certificate of satisfactory completion, and all other required permits. DEQ site evaluation has been completed, see Section J.

1.2 RELATED SECTIONS

A. 02318 Excavation and Backfill for Utilities 02530 Sanitary Sewer 02531 Sanitary Sewer Manholes, Frames and Covers 02543 Septic Tanks 02544 Septic Tank Demolition 02547 Subsurface Disposal Systems 11311 Pump Lift Station

1.3 SUBMITTALS

A. As specified in Section 01330 and as detailed below and in PART 2 PRODUCTS.

B. Provide catalog information on all equipment and materials to be installed prior to purchase and installation of the items. All equipment and materials shall be approved by the CO prior to ordering.

C. Provide manufacturer Operations and Maintenance manuals for all pump stations, treatment systems, septic tanks, control panels, distribution boxes, drain lines, and individual components. O&M manuals shall contain specific information for the particular item installed, specific maintenance intervals, and explicit instruction for maintenance. General maintenance requirements will not be allowed. Include maintenance check lists and recording chart.

D. Provide record drawings as directed below.

E. Provide copies of all permits, inspection reports and certificate of satisfactory completion.

1.4 RESTORATION, FINISHING, AND CLEANUP

A. As per Sections 02318 – Excavation and Backfill for Utilities; and 02500 - Surface Restoration for specific requirements.

B. The Contractor shall restore or replace all paved surfaces, graveled surfaces, sidewalks, trees, shrubbery, lawns, fences, and other existing facilities equal to their original condition. All surplus material and temporary structures as well as excess excavation shall be removed and the entire site of Contractor operations shall be left in a neat and clean condition as outlined in Division 1 - General Conditions.

C. The Contractor shall submit all copies of Operations and Maintenance Manuals and as-built record drawings as required by these specifications. Record drawings shall document the location of all facilities and pipes. Locations shall be noted by two or more dimensions from permanent structures. Additional dimensioning is required from nearby structures or edge of roads.

D. The Contractor shall provide on-site training of the operation of each system. The operations and maintenance manuals shall be used for the training session. The Contractor shall correct all deficiencies in the operation and maintenance manuals that are noted during the training session.

Water and Wastewater Systems

PART 2 PRODUCTS

2.1 GENERAL

A. The Contractor shall furnish and install sanitary sewer pipe, force mains, manholes, septic tanks, pumps and pump stations, effluent treatment system, distribution box, and drain pipe as specified.

B. All materials shall conform to the guidelines set forth by the State of Oregon and the Oregon Department of Environmental Quality (ODEQ).

C. All tanks (septic, mixing, etc.) and package treatment systems shall be on ODEQ's list of approved manufacturers.

2.2 PIPE

A. Gravity sewer mains shall be per Section 02530. All pipes 4" and larger shall be bell and spigot push-on type pipe, glued joints are not acceptable.

B. Sanitary Sewer force mains shall be schedule 80 PVC pipe with solvent welded joints.

C. Drainfield pipe shall be straight, perforated PVC pipe or other acceptable alternative pipe or structure pre-approved by ODEQ and Jackson County and approved by the COR.

D. Facility piping shall be per manufacturer’s direction or galvanized steel pipe.

E. All non-metallic pipes shall be installed with detectable marking tape and tracer wire as described in Section 02530. The Contractor shall verify the integrity of the tracer wire prior to final acceptance of the installation.

2.3 VALVES

A. All valves shall be brass ball valves unless an alternative is authorized in writing by the COR.

2.4 DISTRIBUTION BOX

A. The distribution box shall be made of concrete. The access to the box shall have concrete ring risers as appropriate for access to the distribution box at ground level. Access shall be through a standard size manhole lid or other approved method.

2.5 SEPTIC TANKS

A. The septic tanks shall be constructed per Section 02543 and be of the size and configuration indicated on the drawings.

2.6 PUMPS AND PACKAGED PUMP STATIONS

A. The Contractor shall optimize the pumps based on existing site conditions. Additional information in Section 11311.

2.7 PRE-PACKAGED SECONDARY EFFLUENT TREATMENT SYSTEM

A. A pre-packaged effluent treatment system is required for the new sanitary sewer treatment system. Acceptable secondary treatment systems: Advantex AX20 or approved equal.

B. Acceptable manufacturers are Orenco Systems Incorporated, Sutherlin, Oregon or approved equal. Acceptable manufacturers shall be listed as approved by ODEQ. Tanks, vessels, and access hatches shall be approved by manufacturer.

C. The Contractor shall provide shop drawings and manuals to show this system meets ODEQ standards.

D. The Contractor shall provide buoyancy and frost heave calculations for the system selected.

E. Electrical requirements include wiring, panel, conduit, 30-amp circuit, trenching, wall penetrations, and repair.

2.8 MANHOLES

A. Manholes shall be constructed per Sections 02531. All pipes entering the manholes shall be a maximum of 12" above the bottom of the manhole.

PART 3 EXECUTION

3.1 GENERAL

A. Septic system must be installed by a DEQ licensed installer.

B. Prior to construction the Contractor shall meet with the CO at the site to review the locations of sanitary sewer facilities. The Contractor shall perform site inspections and a verification of site grades to confirm the layout of the sanitary facilities and pipes as shown on the drawings. The sanitary sewer facilities described here and shown on the drawings are based on the best information available at the time of design. Adjustments to alignment, grade, and facilities may be required to optimize the system to actual site conditions. Contractor shall submit for approval the system layout to ODEQ after the contractor has verified alignment and grades.

C. Removal of structures, vegetation, or trees necessary for system installation shall be reviewed with the CO prior to final system layout. Final system layout shall minimize disturbance to existing site features. The Contractor shall use excavation equipment that minimizes site disturbance.

D. Trench Excavation and Backfill. Trench excavation and backfill shall be performed as specified in Section 02318 – Excavation and Backfill for Utilities.

3.2 INSTALLATION OF PIPE

A. Sewer pipe, force mains, and drainfield pipe shall be installed in accordance with best current practices as required by the manufacturer and as specified herein.

All sewer pipes shall be installed below water lines to the maximum extent possible. Where sewer lines are installed above water lines the sewer line shall be encased in a controlled low strength material (also called low density concrete mix) as defined in ODOT Standard Specifications for Construction 2008 Section00442 for 10' on either side of the crossing. Gravity sewer lines shall be laid at a minimum slope of 1%. The Contractor shall provide and bury a concrete pier block (12"x8"x12") every 50' and at all bends above the pipe such that the pier block extends out of the ground 2" for all gravity and pressure pipes. The pier blocks shall be painted green.

Pipes for the drainfield laterals shall be perforated pipe or approved equal. Pipe from the distribution box to the laterals shall be solid walled pipe.

Force mains shall be installed to minimize the amount of pipe that will drain back to the pump station when the pump shuts off or is removed for maintenance. All pipe seals shall be water tight.

No pipe shall be installed in water or when conditions exist that, in the opinion of the CO, are unsuitable for the laying of the pipe. At times when pipe laying is not in progress, the open ends of pipe shall be closed by a watertight plug or other approved means. This provision applies during the noon hour as well as overnight. If there is water in the trench, the seal should remain in place until the trench is dewatered sufficiently to prevent groundwater from entering the pipe. Adequate provisions shall be made by the Contractor for final disposal of the groundwater pumped from trenches.

3.3 STRUCTURE INSTALLATION

A. Excavation for septic tanks, pump stations, distribution boxes, and secondary treatment systems shall not be larger than 12" on any side of the structure installed. A 12" layer of compacted ¾"-0 crushed rock shall be placed beneath each structure unless a manufacturer’s recommendations require a deeper layer. The structures shall be backfilled with ¾"-0 crushed rock.

3.4 ELECTRICAL INSTALLATION

A. Provide and install conduits, breakers, wiring, control panels, alarms, and other related items as necessary to make each item complete.

B. All electrical items shall be installed by a certified electrician and shall conform to the laws and regulations of the State of Oregon.

3.5 TESTING

A. Testing for all sanitary sewer pipes shall conform to ODOT Standard Specifications for Construction 2008, Section 00445.72. Either hydrostatic or air testing is acceptable.

B. Testing for manholes, septic tanks, and pump stations shall conform to ODOT…

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