0429 2022 COC NF Pinegrove CG Water Well Rehab Specs rev.pdf

TABLE OF CONTENTS - 1

Coconino National Forest

Flagstaff Ranger District

Pinegrove Campground – Water Well Rehabilitation

April 2022

Table of Contents 01100 – Summary

01102 – Schedule of Items

01103 – Measurement and Payment

01300 – Submittals

01730 – Warranties

01900 – Mobilization

02071 – Removal of Structures and Obstructions

02610 – Pipe, Fittings, and Specialties

02641 – Valves

02645 – Water Meters

02665 – Waterlines and Appurtenances

11215 – Submersible Pump with Motor

11220 – Pump Controls

15400 – Well Piping

16100 – Power Distribution

01100 – SUMMARY 2

DIVISION 01 – GENERAL

SUMMARY - 01100

PART 1 – GENERAL

2.01 INTRODUCTION

The objective of this project is to replace the submersible well pump, drop piping with casing spacers, check valves, level sounding piping, well pump electric cable and any necessary fittings and appurtenance. A new water meter shall be set in the existing pump house. Also included in this base bid is assessment/adjustment of existing pump controls

(for new submersible pump and existing booster pumps), including a new control sequencer for booster pump.

All work shall be completed in accordance with the project specifications. The project includes all labor, materials, and equipment necessary to perform all the operations for the work specified.

2.02 PROJECT LOCATION

The project is located at the Pinegrove Campground, on the Flagstaff Ranger District. The campground is approximately 25 miles southeast of Flagstaff, Arizona. Driving time from

Flagstaff is approximately 35 minutes. The coordinates of the location is latitude

35.026188 and longitude -111.460126.

2.03 EXISTING CONDITIONS

The campground operates under a seasonal period. The operations start late April each year and shuts down in November.

A. General Information – Access and Location Information:

1. Access – The roads are paved within the campground, but the road to the well area is a less maintained service dirt road.

2. Weather – During the winter, the road to the well area may not be accessible and will be closed if not passable.

3. Secured – The perimeter of the well is fenced and locked with other buildings and structures including an aboveground steel storage tank and pumphouse equipped with the pump controls and other pressure pump equipment. The main campground entrance is locked at entrance gate during the off season.

B. Existing Well Information:

1. Existing Pump – The original pump was a Trico #620SB40-60

- Rated at 20HP, 2-inch discharge.

- Existing flow rate @ 3 – 5 gpm

01100 – SUMMARY 3

2. Motor – Franklin Electric

3. Depth – 1,700 feet (Below Ground Surface)

4. Flow Rate Desired – 13 - 15 gpm minimum at 1700 feet total dynamic head.

C. Existing Utilities

There are existing utilities which may need to be disconnected prior to the removal and disposal of building components. The contractor is responsible for ensuring utilities are properly disconnected before work is initiated.

All temporary utility disruptions shall be communicated in advance, a minimum of 36 hours, to COR. All utilities shall be returned to “ON” at end of each day.

Contractor shall allow the concessionaires to maintain the service and operability of the water storage tank, during operating campground season, to the maximum extent practicable.

2.04 FIELD VERIFICATION

A. Bidders are encouraged to visit the site, compare the specifications with any work in place, and inform themselves of all conditions, including other work, if any, being performed. Failure to visit sites will in no way relieve the successful bidder from the necessity of furnishing any materials or performing any work that may be required to complete work in accordance with specifications, without additional cost to the

Government.

B. Information regarding the sites of the work provided in specifications is believed to be reasonably correct, but the Government does not warrant either the completeness or accuracy of such information, and it is the responsibility of the contractor to verify all information independently and to make other examinations of the conditions to be encountered during construction.

C. The contractor acknowledges that he/she has investigated and satisfied himself/herself as to the conditions affecting the work, including, but not restricted to, those bearing upon transportation, disposal, handling and storage of materials, availability of labor, water, electric power, roads, and conditions of the ground, the character of equipment and facilities needed prior to and during prosecution of the work. The contractor further acknowledges that he/she is satisfied as to the character, quality, and quantity of surface and subsurface materials or obstacles to be encountered insofar as this information is reasonably ascertainable from as inspection of the sites. Any failure by the contractor to acquaint himself/herself with the available information will not relieve him/her from the responsibility for estimating properly the difficulty or cost of successfully performing the work.

2.05 CONTRACT TIME

All work under this contract shall be completed within 30 calendar days after the date of receipt of the Notice to Proceed.

01100 – SUMMARY 4

2.06 PRECAUTIONARY MEASURES

The American National Standards Institute (ANSI)/NSF International (NSF)

1. ANSI/NSF Standard 60: Drinking Water Chemicals – Health Effects

2. ANSI/NSF Standard 61: Drinking Water System Components – Health Effects

3. ANSI/NSF Standard 14: Plastics Piping System Components and Related Materials

American Water Works Association (AWWA)

U.S. Occupational Safety & Health Administration (OSHA)

Environmental Protection Agency (EPA)

Arizona Department of Environmental Quality (ADEQ)

2.07 GENERAL SITE CONDITIONS, FACILITIES AND TEMPORARY CONTROLS

A. Contracting Officer’s Representative (COR) – The COR is a Forest Service official designated by the Contracting Officer to perform day-to-day contract administration, including site inspections for quality assurance.

B. A site can be made available to the Contractor for temporary staging and storage during the duration of the project and will be located by the COR at the beginning of work.

Any damage resulting from the Contractor’s use of this site will be repaired or replaced at the Contractor’s expense at the direction of the COR.

C. This site has little to no cell phone coverage and will not have immediate access to restroom facilities. Contractor is responsible for providing sanitation facilities or porta-potties for their employees. All temporary services and use areas shall be completely removed and be restored upon completion of use.

D. Transportation to and from the work site for the Contractor's personnel and materials will be provided at the Contractor's expense.

E. The Contractor shall take reasonable measures to secure equipment and contract work against theft and vandalism. The Forest Service is not responsible for the theft and/or vandalism of any materials or equipment left at the project site.

F. 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.

G. No Government furnished supplies will be provided.

H. There will be no water available. Contractor is responsible for providing potable water necessary to complete all work and for their employees.

I. There is electricity available. Contractor is responsible to verify existing electrical receptacles and/or outlets are available and rated for appropriate equipment. Contractor shall provide equipment necessary to complete work.

J. Contractor shall be aware the work may be scheduled during operational season of the campground. The waterline to the tank shall be isolated with existing shut off valves prior to start of work.

01100 – SUMMARY 5

K. Contractor shall protect the inlet/outlet openings to the one (1) storage tank and to the well with a temporary plug during all activities until the connections are ready to be re-connected and work is completed.

L. Contractor shall coordinate with the COR to schedule the work to minimize delay and long interruptions as best as manageable.

2.08 USE OF PREMISES

A. Driveways, Walkways, and Entrances: Keep driveways, walkways and entrances serving premises clear and available to emergency vehicles and pedestrians. Do not use these areas for parking or storage of materials, unless approved by the COR.

B. During construction, any locked areas to the public shall remain locked or closed. All gates shall be locked at end of each day.

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

D. Only potable water shall be used for all work throughout this contract.

2.09 CONSTRUCTION SCHEDULE

A. Contractor is responsible for providing a construction schedule. Work shall take place between the hours of 06:00 and 19:00, Monday through Friday, unless otherwise indicated.

1. Weekend Hours: When approved by COR.

B. Contractor shall notify the Engineer before any interruptions to the existing water service.

2.10 PROVISIONS FOR SAFETY AND APPLICABLE REGULATIONS

A. Contractor shall operate in compliance with AWWA C654-13 Standard for

Disinfection of Wells.

B. Contractor shall abide by OSHA standards safety regulations for water storage tanks.

C. Contractor shall follow instructions in ADEQ Engineering Bulletin #8 (Section V.C., pg 21), “Disinfection of Water Systems”.

2.11 PROVISIONS FOR PROTECTION OF NATURAL RESOURCE

A. 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.

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

C. 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.

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

2.12 SITE VISIT

A. There will be a site visit to be determined in the future.

01100 – SUMMARY 6

B. Questions can be directed to Tina Williams at (928) 326-1496.

2.13 COMPETENT PERSON

A competent person must be on site at all times as defined by 29 CFR 1926.62(b).

2.14 CLEAN UP AND DISPOSAL – NON-HAZARDOUS WASTE

Waste accumulation in approved containers and material staging is allowed at the site. Disposal of waste material will be off National Forest Land and in compliance with local, state, and federal laws regarding disposal of construction waste. Before final acceptance of the project by the Government, the Contractor shall remove from Government land all waste materials and rubbish resulting from this work.

END SECTION 01100

01102 – SCHEDULE OF ITEMS 7

DIVISION 1 GENERAL

SCHEDULE OF ITEMS – 01102

BASE BID ITEMS

Item No. Item Description Est.

Qty

Method of

Measurement Unit Unit Cost Total Cost

Base Bid Items:

01900 (01) Mobilization 1 LSQ LS

02071 (01)

Demolition - Water Well Pump

& Motor, Electrical Cable, Well

Piping (Air Line, Drop Pipe, and all appurtenances) & Water

Meter

1 LSQ LS

02645 (01) 3” Water Meter – Pump House, Fittings and Re-Plumbing

11215 (01)

New Submersible Pump &

Motor, incl Static Water Level

Measurement and Drawdown

Test

11220 (01) Well Pump Controls –

Assessment

11220 (02) Booster Pump Controls –

Assessment

15400 (01) 3” Drop Pipe 1,700 AQ LF

15400 (02) 3” Drop Pipe Check Valve 6 AQ EA

15400 (03) 3/4” Sounding Tube 1,700 AQ LF

16100 (01) Electrical Cable 1,700 AQ LF

Total Base Bid

* LS = Lump Sum, LSQ = Lump Sum Quantity, DQ = Designed Quantity Total Base Bid:

END SECTION 01102

01103 – MEASUREMENT AND PAYMENT 8

DIVISION 1 - GENERAL

MEASUREMENT AND PAYMENT - 01103

PART 1 - GENERAL

1.1 – Requirements:

Measurement and payment for contract work will be made only for and under those pay items included in the SCHEDULE OF ITEMS. All other work and materials will be considered incidental to and included in the payment of the pay items in the

SCHEDULE OF ITEMS.

1.2 – Units of Measurement:

The following method of measurement for determining final payment is

DESIGNATED on the SCHEDULE OF ITEMS for each pay item.

(a) Lump Sum Measurement (LS). This denotes one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job.

(b) Each (Ea): Denotes one complete unit, which may be consist of one or more parts

(c) Linear Foot (LF): Denotes measurement of work along from point-to-point;

parallel to the base or foundation. Do not measure overlaps.

1.3 – Method of Measurments

One of the following methods of measurement for determining final payment is designated on the Schedule of Items for each pay item:

1. ACTUAL QUANTITIES (AQ) - These quantities are determined from actual measurements of completed work.

2. 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.

3. 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 include 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:

01103 – MEASUREMENT AND PAYMENT 9

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 cause 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.

END OF SPECIFICATION 01103

01300 – SUBMITTALS 10

SUBMITTALS - 01300

1.1 Requirements

It will be the Contractor's responsibility to submit all items with such promptness as to cause no delay in the work. Approvals must be obtained before starting work which involves the item. Contractor shall allow ten (10) days for processing of submittals by the Government.

Submittals may also be referred to as SHOP DRAWINGS.

1.2 - Manufacturer's Literature and Shop Drawings

A. Submit one copy to the Contracting Officer’s Representative for approval on the items required herein.

B. Submittal specifications are to be submitted in the following format:

1. The specifications and salient qualities of the item specified in the contract.

2. The specifications and salient qualities of the submittal item.

3. A listing of the differences and a comparison between the two, including but not limited to the structural qualities, operational qualities, any modifications necessary to accomplish installation of unit, and guarantee and warranty.

4. A cost comparison between the specified and submitted item(s) with the cost reduction benefit to the government or adequate justification for a cost increase to the government.

5. Shop drawings of submitted item(s) including wiring or layout diagrams.

C. If there are any modifications necessary to facilitate installation, a set of drawings showing installation of specified item and a set showing how the submittal item will be installed shall be submitted to the C.O.R.

D. Submittals will be waived if Contractor furnishes exact item used for design when manufacturer's model, size, etc. are shown in the contract.

E. Submittals are required per the following sections:

1. 01730 – Warranties

a. All components including but not limited to submersible pump, pitless adapter, casing spacers, frost free hydrant, water meter, etc.

01300 – SUBMITTALS 11

2. 02610 – Pipe, Fittings, and Specialties

Product Data

3. 02641 – Valves

Product Data

4. 02642 – Utility Enclosures

Product Data

5. 02645 – Water Meters

Product Data – Water Meter

6. 02665 – Waterlines and Appurtenances

Product Data

7. 11215 - Submersible Pump with Motor

Product Data

O&M Data

8. 11220 – Pump Controls

Product Data

O&M Data

10. 15400 – Well Piping

Product Data

11. 15410 - Water Well Fittings

Product Data

END OF SPECIFICATION 01300

01730 – WARRANTIES 12

WARRANTIES - 01730

1.1– Requirements

The Contractor will warranty all parts and labor associated with the project per FAR

52.246-21.

1.2 – Related Work

01300 - Submittals

1.3– Manufacturer’s and Contractor’s Warranty Literature

The Contractor will provide literature that will list the proper warranty procedures to follow in the event of equipment failure. The literature will list instances which might affect the validity of the warranties.

END OF SPECIFICATION 01730

01900 – MOBILIZATION 13

DIVISION 1 - GENERAL

MOBILIZATION - 01900

1.1 SUMMARY

A. The work specified herein includes all 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.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION (NOT USED)

PART 4 – MEASUREMENTS AND PAYMENT

4.1 Progress payments will be made as follows:

A. The Contractor can request payment for performance and payment bonds. The amount of the premium, including coinsurance and reinsurance agreements, will be paid upon receipt of evidence of full payment to the surety. When separate payment for bonding cost is made, the bonding cost will be subtracted from the total contract amount for this pay item and the balance paid in accordance with the progress payment schedule outlined below.

1. 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.

2. 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.

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

B. Any bonding costs in excess of the total contract amount of this pay item will be paid under one or more other pay items under this contract as determined by the

Contracting Officer. In no circumstance will the total amount of this contract be increased as a result of bonding costs exceeding the total contract amount of this pay item.

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

01900 – MOBILIZATION 14

4.2 Payment

A. Payment will be made under:

PAY ITEM DESCRIPTION PAY UNIT

01900(01) Mobilization LS

END OF SECTION 01900

02071 – REMOVAL OF STRUCTURES AND OBSTRUCTIONS 15

DIVISION 2 - SITE WORK

REMOVAL OF STRUCTURES AND OBSTRUCTIONS - 02071

1.1 - Description

This section specifies work requiring the removal and disposal of all structures and obstructions within the project limits which have been SHOWN OR SPECIFIED ON

THE DRAWINGS.

Existing structures and improvements which are to become an integral part of the planned improvements shall remain even though not specifically noted.

1.2 - Material Classification

Material to be excavated is unclassified. The Contractor is advised to classify the material to their satisfaction.

PART 2 - PRODUCTS

None.

PART 3 - EXECUTION

3.1 – Removal of Obstructions

Remove all obstructions SHOWN OR SPECIFIED ON THE DRAWINGS.

Removal shall include all associated footings or foundations to a depth of no less than

2.0 feet unless otherwise SHOWN OR SPECIFIED ON THE DRAWINGS or in the specifications.

3.2 – Removal of Utility Lines

Existing water utility lines shall be removed for disposal AS SHOWN ON THE

DRAWINGS.

Existing water lines designated to be abandoned in place, AS SHOWN ON THE

DRAWINGS, must be demolished so that only the portions of the water line deeper than 1” below ground surface remain. All other portions must be removed for disposal.

3.3 – Backfill and Disposal

All voids left after removal, not being incorporated into the work, shall be backfilled and compacted in accordance with Section 02223.

02071 – REMOVAL OF STRUCTURES AND OBSTRUCTIONS 16

All materials removed and designated for disposal AS SHOWN ON THE

DRAWINGS OR SPECIFICATIONS shall be removed from National Forest Lands and disposed of in accordance with local, state and federal regulations regarding disposal of construction waste unless otherwise SHOWN ON THE DRAWINGS.

PART 4 - MEASUREMENT AND PAYMENT

4.1 - Measurement

The work specified herein will be measured as described above as one lump sum payment.

4.2 - Payment

The accepted quantities will be paid for at the Lump Sum unit price for each item listed in the SCHEDULE OF ITEMS.

All work required for the complete removal and disposal of items SHOWN ON THE

DRAWINGS or listed in the Specifications is included. Separate payment will not be made under other items.

Payment will be made under:

Pay Item Description Pay Unit

02071(01) Demolition-Water Well Pump & Motor. . . . . LS

Electrical Cable, Well Piping, And all appurtenances & water meter

END OF SPECIFICATION 02071

02610 – PIPE, FITTINGS, AND SPECIALTIES 17

PIPE, FITTINGS, AND SPECIALTIES - 02610

1.1-Description

This section specifies the furnishing of pipe, fittings, and specialties. Installation of these items is covered in other sections of the specifications.

All references to pipe sizes refer to the nominal diameter.

1.2-Related Work Specified Elsewhere

02645 – Hydrants/Water Fixtures

02665 – Waterlines and Appurtenances

1.3- Quality Assurance

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

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

1.4- Submittals

Submit sufficient descriptive literature to demonstate compliance with these specifications for the following:

Pressure Pipe and fittings

Specialties

1.5- Single manufacturer

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

1.6- Applicable Codes

AWWA, ASTM, Uniform Plumbing Code, ADEQ

02610 – PIPE, FITTINGS, AND SPECIALTIES 18

2.1 – Bushings

When reducing fittings are AS SHOWN ON THE DRAWINGS, bushings of the same material as the fitting may be approved by the Engineer, if space is available.

2.2- Joints between Dissimilar Materials

Use flanges, couplings, unions, or other trasition fittings manufactured specifically for the types of pipe being joined and having a minimum pressure rating, or pressure class (as applicable) equal to or greater than the lower pressure rating or class of the pipes being joined. Plastic threaded pipe/fittings shall not be joined with metal threaded pipe/fittings

2.3- Pressure Pipe and Fittings

Pressure water lines and fittings shall conform to the following unless otherwise

SHOWN ON DRAWINGS.

Pipe and Fittings, 3/4” – 4” diameter:

Polyvinyl Chloride: Pipe couplings and fittings shall be schedule 40, manufactured of material conforming to ASTM D 1784, Class 12454B, designated as PVC 1120 in ASTM D 1785. Threaded joints and fittings shall meet Schedule 80 requirements of ASTMD 1785. Install PVC, AWWA pipe according to ASTM

F645 and AWWA M23.

Polyethylene (PE): Install PE pipe according to ASTM D2774 and ASTM F645.

Pipe shall comply with requirements of ANSI/AWWA C901-88. Joining methods and fittings shall be per approved submittal. Flare, insert, compression and fusion type fittings can be employed. If compression fittings are used, they shall be a type with a split clamp.

Galvanized steel: Pipe shall comply with ASTM A 120, schedule 40, threaded and coupled. Threaded fittings shall comply with ANSI B 16.3.

Pipe and Fittings, 4” and greater diamter:

Polyvinyl chloride: Pipe and fittings shall be elastometic joint or flanged and shall comply with requirements of ANSI/AWWA C900-89. Where SHOWN ON THE

DRAWINGS, restrained joints of the MegaLug type or approved equal will be used. Fittings shall comply with the requirements of ANSI/AWWA C110/A21.10-

87.

Ductile Iron: Pipe shall comply with the requirments of ANSI AWWA

C151/A21.5. Pipe shall be cement-mortar lined, rubber gasketed slip joint.

Where SHOWN ON THE DRAWINGS, restrained joints of the MegaLug type

02610 – PIPE, FITTINGS, AND SPECIALTIES 19

or approved equal will be used. Fittings shall comply with the requirements of

ANSI/AWWA C110/A21.10-87.

2.5 – Specialties

Saddles – Cast Iron, Steel and Asbestos Cement Pipe: Double strap service saddle with brass or forged steel galvanized straps.

Saddles – Plastic Pipe, 1” through 4”: Two piece polypropylene body which surrounds pipe, with two stainless steel straps and stainless steel reinforcing cap.

Flexible Couplings Steel or Cast Iron: Rockwell, Dresser, or approved equal.

Pipe Supports: Cast iron saddle, locknut nipple and reducer to provide vertical adjustment.

Thread Compound and Tape: A lead-free, seize-sealing compound or tape approved for use in joints and threaded parts of potable water systems.

Building Connectors: High molecular weight elastomeric plastic compression sealing ring or sleeve coupling with stainless steel clamps and bolts. Fernco, or approved equal.

3.1 – General

Execution of this specification is included in other sections of this contract.

PART 4 – MEASUREMENT AND PAYMENT

4.1 – Measurement

The work specified herein will not be measured for payment. See Specification

02665 – Waterlines and Appurtenances for payment.

4.2 – Payment

This work is incidental to other items in this contract and direct separate item payment will not be made.

END OF SECTION 02610

02641 – VALVES 20

VALVES - 02641

This section specifies the furnishing and installation of valves.

02665 – Waterlines and Appurtenances

1.3- Working Pressure

150 psi minimum for all valves unless otherwise shown AS ON THE

General Application: Use mechanical-joint end valves for NPS 3” and larger underground installation. Use threaded or flanged-end valves for installation in vaults. Use UL/FMG, nonrising stem gate vavles for installation with indicator posts. Use corporation valves and curb valves with ends compatible with piping, for NPS 2” and smaller installation.

1.4- Submittals

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

1.5- Abbreviations

RS – Rising Stem

NRS – Non-rising Stem

WOG – Water, Oil and Gas

2.1- Valve Rods

Materials – Galvanized iron or steel.

2.2 – Check Valves

Check Valves shall conform to the following:

Bronze or stainless steel body and disc, 200 psi WOG rating with threaded or flanged end connections. Federal Specification WW-V-51 (Type IV, Class A).

02641 – VALVES 21

2.3 – Service Valves

Valves shall conform to the following unless otherwise SHOWN ON THE

DRAWINGS:

Three inches and over: Resilient seated gate valve, AWWA C 509, ductile iron body, NRS, 200 – pound wedge, operating nut. AVK or approved equal.

Under three inches: Two piece, forged brass ball valve, 150 psi, WOG rating, reinforced teflon seats, chromeplated ball with separate packing nut capable of in-line maintenance or replacement.

2.4 – Drain Valves

Drain valves shall conform to requirements of part 2.2 above.

3.1 – Installation

Install valves according to manufacturer’s installation recommendations and the following:

Service Valves: Install valves horizontal pipelines with stems vertical and pointing upward. Install valves on vertical pipline with stem pointing toward the direction of access.

Valve Rods: Supply two (2) valve rods of sufficient length for each different valve operating nut.

Drain Valve: Install valves on horizontal pipelines with stems vertical and pointing upward. At end of drainline place 1 cubic foot gravel pack beneath the outlet as

SHOWN ON THE DRAWINGS.

Measurement will not be made for items in this section.

Payment for these items will not be made separately. Cost associated with items in this section is considered incidental and should be included with other associated pay items.

02641 – VALVES 22

END OF SECTION 02641

02645 – WATER METERS 23

DIVISION 2 – SITE WORK

WATER METERS - SECTION 02645

PART 1 – GENERAL

1.01 SUMMARY

A. This section specifies furnishing and installing of water meters.

1.02 RELATED SECTIONS

A. 02641 – Valves

B. 02610 – Pipes, Fittings, and Specialties

C. 02665 – Water Lines and Appurtenances

1.03 SUBMITTALS

A. Submit sufficient descriptive literature to demonstrate compliance with these specifications. Include manufacturer's installation, operation, and maintenance instructions.

PART 2 – PRODUCTS

2.01 MATERIALS

A. Water Meter.

1) Disc Type.

a) Bronze body, frost-proof, meeting AWWA C700, ANSI/NSF Standard 61 certified.

2) Meters 2 inch and larger.

a) Flanged ends, companion flanges, gaskets, bolts, and nuts.

b) Register.

3) US gallons, straight reading, with test sweep hand.

B. Corporation Stop.

1. AWWA C800, red brass.

PART 3 – EXECUTION

3.01 INSTALLATION

A. Install at locations shown on Drawings and with the register readable.

B. Contractor shall install meter according to manufacturer’s instructions

C. Meter shall be installed in a horizontal position, as recommended by manufacture.

02645 – WATER METERS 24

PART 4 - MEASUREMENT AND PAYMENT

4.01 METHOD OF MEASUREMENT

A. Measurement will be lump sum quantity for pay item. All work associated with providing new plumbing, including new fittings, such as, but not limited to, check valves, ball valves, pressure switches, unions, nipples, reducers and/or adapters, shall be included to provide proper flow and operation.

4.02 BASIS OF PAYMENT

A. Payment will be at the Contract lump sum price for items contained in this section.

All related plumbing improvements required to install meter shall be considered in this line item.

B. Payment will be made under:

PAY ITEM DESCRIPTION PAY UNIT

02645 (01) 3” Water Meter – Pump House, LS

Fittings and Re-Plumbing

END OF SECTION 02645

02665 – WATERLINES AND APPURTENANCES 25

WATERLINES AND APPURTENANCES - 02665

This section specifies waterline appurtenances and installation, installation of waterlines, installation of drainlines and water system disinfection and pressure testing.

02610 – Pipe, Fittings, and Specialties

02641 – Valves

1.3-Applicable Code or Regulations

a. AWWA C654-13 Standard for Disinfeciton of Wells

b. Contractor shall follow instructions in ADEQ Engineering Bulletin #8 (Section

V.C., pg. 21), “Disinfection of Water Systems”.

2.1 – Pipe and Valves

Specification 02610 – Pipe, Fittings, and Specialties

Specification 02641 – Valves.

3.1 – Pipe Installation

Handle and install pipe in accordance with manufacturer’s Installation Guide and the following:

Placement of Pipe: Place so its full length (except for couplings) bears uniformly on the bedding material. Do not lay pipeline in water.

Pipe Protection: Keep interior of pipeline and joining surfaces clean. Plug exposed ends of pipe at end of work shifts.

Cutting Pipe: Make all cuts square and ream. Do not use damaged pipe.

Lubricated Joints: Use only non-toxic and water soluble lubricant.

02665 – WATERLINES AND APPURTENANCES 26

Pipe Alignment and Grade: Where necessary to avoid existing obstacles, pipelines may be realigned slightly. Slope all lines to drain or AS SHOWN ON

Do not exceed the manufacturer’s recommended maximum deflection. Deflections in excess of these limitations require special bends or a sufficient number of shorter pipe lengths.

3.3 – Valves

See section 02641 - Valves

3.5 – Anchor Blocks

Place anchor blocks upon undisturbed soil. Place anchor rods to bear firmly and evenly around pipe or fixture being secured.

3.6 – Hydrostatic Testing

Perform hydrostatic test of all waterlines. Furnish all equipment necessary for tests.

Test as follows:

Preparation: Do not backfill couplings and fittings prior to test. Brace couplings and fittings to prevent movement during testing. Backfill other portions of waterline prior to test so no movement can occur when the line is under pressure.

Allow all thrust blocks in test section to cure for 48 hours, minimum, prior to testing.

Flush all pipelines.

Furnish and install all temporary supports, blocking and plugs, necessary to run the test. Remove after testing.

All air should be expelled from the pipeline during filling and again before making the pressure test.

Testing: Perform test in the presence of the COR as follows:

Test each section at a minimum of 150 psi at the point of lowest elevation in the section, for a period of 4 hours.

Maximum allowable overall leakage for a test section is:

L = NDP, where

L = Allowable leakage, gph

02665 – WATERLINES AND APPURTENANCES 27

N = Number of joints in test section

D = Nominal diameter of pipe, inches

P = Square root of the average test pressure, psig

Repair any visible leakage at joints and repeat the test. If overall leakage is above maximum allowable, repair the pipeline and repeat the test. Continue this procedure until leakage is within the allowable specified.

3.7 – Disinfection of New Waterline, and new pumphouse plumbing, and Well

Disinfect all newly laid plumbing and waterlines after hydrostatic testing is completed following instructions in ADEQ Engineering Bulletin #8, “Disinfection of

Water Systems”.

Disinfecting Agent Chlorine as a liquid or powder/tablets, Sodium hypochlorite or

Calcium hyprochlorite, solution of known strength.

Disinfecting Solution Strength and Measurement Mix the chemical with the water entering the pipeline to obtain a minimum of 50 mg/l chlorine concentration. The following table can be used to calculate required chlorine based on strength product used:

To achieve 50 mg/l (ppm) per 1000 gallons volume to be disinfected use

5% chlorine bleach – 1 gallon

25% powder - 1 lb. – 11 oz.

70% powder - 9.6 oz.

Open valves as necessary to allow solution to fill and circulate throughout the entire system. Test all outlets and ends of pipeworks to ensure that the chlorine solution has reached the entire system.

Disinfection Period Retain chlorine solution in the system for a minimum of 24 hours.

Test for chlorine residual at a representative number of outlets. If free chlorine residual is below 10 mg/l, repeat disinfection cycle. During the disinfection period, operate all valves and hydrantrs in the treated segment of pipeline to disinfect the appurtenances.

Final Flushing and Test Following disinfection, flush pipelines with potable water until the chlorine residual is no higher than the existing water supply system or one mg/l. The Government will collect bacteriological samples. One at the well and one at the EPDS. An independent laboratory will conduct bacteriological tests on all samples.

If the intial disinfection fails to achieve potable bacteriological quality, repeat the disinfection procedure until satisfactory results are obtained.

02665 – WATERLINES AND APPURTENANCES 28

Measurement will not be made for items contained in this section

Payment for work items continued in this section will not me made separately.

Items contained in this section are considered incidental to other work.

END OF SECTION 02665

11215 – SUBMERSIBLE PUMP AND MOTOR 29

DIVISION 11 EQUIPMENT

SUBMERSIBLE PUMP WITH MOTOR - 11215

1.1 - Scope

The Contractor shall perform all work required to accomplish the task per the specifications and the manufacturer’s installation instructions. All work shall be done by a state licensed approved electrician. Contractor shall provide information on static water level and perform a drawdown test.

The existing electrical equipment including the exterior transient voltage surge suppressor shall be re-connected, if necessary. An electrical schematic should be submitted to COR to show the re-installation of the existing electrical components for review and approval prior to re-installation. Installation shall follow all current code regulations.

15400 – Well Piping

1.3 - Codes and Standards

(a) All equipment and materials shall be new (unless indicated or specified otherwise).

(b) Work performed under this section shall meet the requirements of the following:

1. Uniform Plumbing Code (UPC), Latest Edition.

2. National Electrical Code, (NEC) Latest Edition.

3. National Electrical Safety Code.

4. Arizona Administrative Rules and Regulations.

1.4 – Existing Conditions

The existing water system currently has a 3-phase, 20-hp submersible pump and motor set in the well at 1,700 ft below ground surface on the end of a 3” drop pipe

The pump is controlled using siemens brand 3-phase contactor and overload protector. A

SYSCOM Motor Saver Plus is also installed on the control circuit.

An exterior transient voltage surge suppressor is installed on the existing concrete well pad.

1.5 – Submittals

11215 – SUBMERSIBLE PUMP AND MOTOR 30

Contractor shall provide Engineer with specifications and technical data pertaining to pump capacity, efficiency, and power requirements. The new pump shall be sized to match existing pump or after completing drawdown tests to recommend best pump size to meet the actual well conditions.

2.1 – General

The materials referred to by trade name, make, or catalog number shall be regarded as establishing a standard of quality; substitutions of equal quality can be made by submitting a data sheet of the proposed substituted item to the Engineer, for approval.

2.2 – Submersible Pump with Motor

Contractor shall provide a new submersible pump and motor assembly.

New Pump desired shall provide:

13 - 15 gpm @ 1,700 feet TDH

Pump shall have a 3” outlet.

3.1 – Installation

The submersible pump and motor will be attached to the drop piping assemblies and the electric cable as described in divisions 15400 and 16100 respectively. The pump / motor and stages will be set at a depth to be determined based on draw down testing. Electrical connections to the pump motor will meet industry standards for underwater service.

3.2 – Testing

Contractor is responsible for testing the operation of all pump and motor equipment in the presence of the Engineer. System shall be shown to operate within the manufacturer’s guidelines as well as the pumping requirements of this specification.

One of the drawdown tests shall be selected and executed after well has been closed and ready for testing. The Contractor shall notify the COR 48 hours in advance of the date when he/she proposes to start the test. Prior to beginning the pumping, the Contractor shall discuss the details of the proposed pumping with the Government. The COR shall agree to the pump depth, pumping rates, and the general method in which the pumping will be conducted

A) Drawdown Tests – Step Down Test

11215 – SUBMERSIBLE PUMP AND MOTOR 31

a. The Contractor shall install the 20 hp submersible pump, pump cable, and all appurtenances necessary to permit the well to be pumped at the rate and depth specified and as agreed to by the COR.

b. The static water level shall be measured and recorded prior to the start of the pumping

c. The Contractor shall also furnish a totalizing flow-meter or orifice weir and a gate valve for regulation and measurement of the discharge during the pumping tests.

d. The Contractor shall also furnish a calibrated water level indicator or sounder, as approved by the COR, for measurement of the static and pumping water levels.

e. Beginning at the agreed upon initial pump rate, begin pumping. Well pumping shall proceed continuously for a minimum of two (2) hours, or longer if necessary. Measure and record the drawdown at intervals not to exceed 10 minute periods or 5-foot drawdowns during the first hour of pumping.

f. After the first hour, the drawdown shall be measured and recorded at intervals not to exceed one hour or a 1-foot drawdown. If the drawdown has stabilized, increase the pump rate as agreed previously by the COR. Any changes in pump rate shall be measured and recorded. As time allows, continue to adjust the pump rate as necessary until the yield of the well is closely determined.

The maximum rate of pumping allowed shall be determined by manufacturer’s recommendation.

B) Drawdown Tests – Constant Rate Pumping Test

a. A drawdown test shall consist of pumping the well at a stable flow rate. The depth of the water surface depth in the well shall be measured every 3 minutes. The drawdown test will be complete when the water surface depth measured in the well stabilizes and remains unchanged after 3 consecutive depth measurements.

C) Recovery

a. At the end of the pumping period, measurements of the well recovery shall be taken at five (5) minute intervals during the first 30 minutes and at ten (10) minute intervals during the remainder of the first hour. Hourly measurements shall be made thereafter until the static water level is essentially re-established.

The Contractor shall submit pump test data sheets showing the results of the test pumping data.

A. Static Water Level – This is the distance from the measuring point, and referenced to the ground surface, to the water level in the well before the pumping is started.

11215 – SUBMERSIBLE PUMP AND MOTOR 32

B. Pumping Rate – The pumping rate shall be determined by the use of a totalizing flow-meter or orifice weir to be furnished by the Contractor. In addition, the pumping rate shall be checked by recording the time required to fill a container of known capacity or by recording the head of a 90 degree, V-notched weir. The capacity of the measuring container shall not exceed the capacity of a 55 gallon barrel. Any changes in the pumping rate during the test shall be measured and recorded.

C. Drawdown – This is the distance below the static water level to the water level in the well while pumping is in progress. This distance shall be measured and recorded according to the requirements of the previous paragraph.

D. Residual Drawdown – This is the distance below the static water level to the recovering water level in the well after pumping has stopped. This distance shall be measured and recorded according to the requirements of the previous paragraph.

E. Inlet Depth – The Contractor’s recommendation of the pump inlet elevation, based on the results of the pumping and the Contractor’s experience, for 20 HP submersible pump installation.

F. Well Production – The Contractor’s estimate of the probable well production based on the results of the pumping and the Contractor’s experience.

3.3 – Existing Pump Controls

Contractor shall assess condition and proper operation of existing pump control circuits, including tank level sensor.

Contractor shall certify that existing pump controls operate as designed.

3.4 – Disinfection

Upon completion of the well and test pumping, the well shall be disinfected as per

Arizona Department of Environmental Quality, Engineering Bulletin #8, “Disinfection of

Water Systems.” Or AWWA C654-13 Standard for Disinfection of Wells.

3.5 – Water Testing

The Government will be responsible for obtaining and testing all necessary water samples after the disinfection has been completed.

PART 4 – MEASUREMENTS AND PAYMENT

4.1 Measurement

The work specified herein will be measured as described above as one lump sum payment. The drawdown test and static water level measurment will be considered incidental to this line item.

All pump test data shall be furnished to the COR.

11215 – SUBMERSIBLE PUMP AND MOTOR 33

4.2 Payment

Payment will be made at the contract lump sum unit price as listed in the “Contract Schedule of

Items” for quantities measured and accepted as follows:

11215(01) New Submersible Pump and Motor LS

Including SWL Measurement and Drawdown Test

END OF SECTION 11215

11220 – PUMP CONTROLS 34

DIVISION 11 EQUIPMENT

PUMP CONTROLS - 11220

This section contains requirements for the control systems for new submersible well pump and existing dual booster pump.

All work shall comply with governing codes

11215 – Submersible Pump with Motor

16100 – Electric Power and Distribution

2. National Electrical Code, (NEC) Latest Edition.

3. National Electrical Safety Code.

4. Arizona Administrative Rules and Regulations.

Submersible Well Pump – The existing control system uses Siemens brand three-phase contactor and overload. The system also runs a “Motor Saver Plus”. When the pump control system is set to “AUTO”, the pump starter is controlled by a water level transducer located in the existing 10k gal. storage tank.

Booster Pump – The existing control system uses a single pressure switch to control a single booster pump.

11220 – PUMP CONTROLS 35

Contractor shall use products that are compatible with existing components.

Documentation shall be provided to demonstrate cross compatibility with products of different manufactures. Engineer approval is required when replacing control components made by a different manufacture.

2.2 – Booster Pump Sequencer

An “off-the-shelf” pump sequencer shall be provided for the booster pump system. The sequencer must have capability to configure a duplex pump system with an alternating lead/lag configuration, controlled by a single pressure switch. The sequencer shall be rated to meet/exceed existing booster pump voltage/power.

3.1 – Assessment

Contractor shall assess current control systems for adherence to governing codes and industry standards. All control components shall be verified to be in working order

(including transducers and switches) and properly configured to automatically maintain desired water level and pressure as designated by the Engineer

Contractor shall make a recommendation for necessary improvements in order to achieve desired pump control.

3.2 – Certification

The Contractor shall certify that the pump control systems are in complete working order and that the control system meets all governing codes. The Contractor shall demonstrate correct functionality in the presence of the Engineer. Both Automatic and Manual functionality shall be positively certified.

3.3 – Replacement

Any components found to be faulty or incompatible with the desired configuration shall be replaced with compatible components of like kind.

3.4 – Submersible Well Pump

The Contractor shall configure the Submersible Well Pump to operate automatically using the existing tank level sensor as a switch. The on/off water level in the tank shall be set in the field according to the Engineers direction. The system shall also have the ability to be controlled manually.

3.5 – Booster Pump

11220 – PUMP CONTROLS 36

The booster pumps shall be controlled in an alternating lead/lag configuration. After every pump cycle the two booster pumps shall switch the lead/lag designation. The existing system shall be configured to be controlled automatically based on system pressure, an existing pressure switch is installed on the system. The system shall also have the ability to be controlled manually. Attached drawings show proposed layout with installation of proposed fittings to allow the proper operation of lead/lag operation.

PART 4 – MEASUREMENTS AND PAYMENT

4.1 Measurement

a) The Assesment work specified will be measured as described above as a lump sum quantity.

4.2 Payment

a) Payment will be made at the contract lump sum unit price as listed in the “Contract

Schedule of Items” for quantities measured and accepted as follows:

Pay Item Description Pay Unit

11220(01) Well Pump Controls – Assessment LS

11220(02) Booster Pump Controls – Assesment LS

b) Payment will be made at the contract unit price for each replacement work item.

END OF SECTION 11220

15400 – WELL PIPING 37

DIVISION 15 – MECHANICAL

WELL PIPING - 15400

This work consists of furnishing and installing all well piping and incidentals as needed for a complete and operational installation including installation of 3” drop pipe, ¾” sounding pipe, vertical lift check valves, and casing spacers

1.2 - Related Work Specified Elsewhere

11215 – Submersible Pump with Motor

2. American National Standards Institute (ANSI).

3. Arizona Administrative Rules and Regulations.

4. American Society for Testing and Materials (ASTM)

PART 2 - Products

2.1 - General

Piping, valves, casing spacers, and related work shall be as specified herein and in the related sections with their references, or as approved by submittal.

2.2- Piping Materials, Casing Spacers, and Check Valves

Materials to be used are specified below. Fittings shall be of same material as piping or as designated.

(a) New 3 inch galvanized schedule 80 steel pipe will be used on the entire length of the drop pipe.

(b) 3 inch galvanized schedule 80 heavy duty couplings which are rated for deep set well service, with the proper tapered thread lead in to facilitate installation and tolerance at each connection for the total pipe column weight.

15400 – WELL PIPING 38

(c) ¾ inch PVC schedule 40 pipe and schedule 40 couplings as needed, to be installed as the sounding pipe: ASTM D 1785.

(d) Simmons Model 80, 3 inch ductile iron, vertical lift, screwed, inline check valves specifically rated for deep set well service, or approved equal.

(e) Kwik-ZIP, casing spacers or an approved equal, for installation on 3 inch galvanized drop pipe in 8” casing.

PART 3 - Execution

3.1 - Installation

(a) General: Handle and install pipe, fittings, check valves and casing spacers in accordance with manufacturer's installation instructions and the following:

1. Install piping as specified. Notify the Engineer of any changes required due to field conditions before incorporating into the work.

2. Casing spacers shall be installed on the drop pipe at intervals of 40 feet measured along the drop pipe or as specified by manufacturer’s recommendations.

3. PVC sounding pipe sections and electric cable will be installed at the same time the drop piping sections and spacers are assembled and installed. The PVC sounding pipe sections and electric cable shall be fastened to the casing spacers or drop piping using water proof tape or cable ties at the Contractor’s discretion. The method of fastening must not damage the sounding pipe or electric cable during the fastening process or lowering process into the well casing. Holes may be drilled in the casing spacer “runners” to fasten cable ties to if necessary.