CITY OF PENDLETON

Request for Proposals / Quotes

Well 11 & Well 11B Pumping Systems

August 2024 Public Works Department

500 SW Dorion Avenue Pendleton, OR 97801 www.pendletonor.gov

Office: (541) 966-0202 Fax: (541) 966-0251 http://www.pendletonor.gov/

TABLE OF CONTENTS

Table of Contents – Well 11 & Well 11B Pumping Systems Page 1 of 1

1. Title Page

2. Table of Contents

3. Request for Proposals / Quotes

4. Information for Proposers

5. Special Specifications

6. Additional Information:

• Sheet M-101: Well 11B Perspective

• Sheet M-102: Well 11B Floor Plan

• Sheet M-106: Well 11B Pump Pedestal Details

• Sheet M-201: Well 11 Perspective

• Sheet M-202: Well 11 Floor Plan

• Sheet M-205: Well 11 Pump Pedestal Details

• Technical Specification 43 05 15: Owner Furnished Equipment

• Well 11: Pumping System Hydraulic Analysis

• Well 11: Well Log

• Well 11: Caliper Log

• Well 11B: Pumping System Hydraulic Analysis

• Well 11B: Well Log

REQUEST FOR PROPOSALS / QUOTES

The City of Pendleton is requesting Proposals for two (2) new complete well pumping systems for Well 11 and Well 118. The work to be performed, in coordination with Owner and Building Contractor, includes providing:

• Motor

• Discharge head & sole plate

• Two access tubes each

• Column

• Shaft, spiders, and bushings

• Pump with pump curve(s) information included

• Installation / start-up

Signed Proposals shall be submitted to City of Pendleton c/o Jeff Brown, Public Works Director, 500 SW Dorion Avenue, Pendleton, OR 97801 by 2:00 pm local time Thursday, September 5, 2024, plainly marked "Well 11 & 118 Pumping Systems". Proposals may also be submitted via email to Scott Roe, Water Superintendent, at scott.roe@pendletonor.gov.

A copy of the Proposal Documents may be obtained from the Public Works Director's office located at the same address as above or by calling (541) 966-0202. The documents are also available online at:

• https://pendletonor.gov /rfps

• https://oregonbuys.gov/bso/

Proposals must be submitted on Proposer's quote form with a price breakdown for each well pumping system based on the bulleted items above. A bid bond will not be required and the successful Proposer will not be required to furnish a bond for faithful performance on the quote in the full amount of the quote.

As this is part of a larger public works project, Proposer must comply with ORS 2 79.3 50 and pay prevailing wage rates as set forth by State of Oregon. The Contractor, its subcontractors, if any, and all employers working under this Contract are subject employers under the Oregon Workers' Compensation law and shall comply with ORS

656.017 which requires the employer to provide workers' compensation coverage for all their subject workers.

City reserves the right to accept that proposal which is in the best interest of the City of Pendleton, Oregon, to reject any and/ or all proposals not in compliance with all prescribed public bidding procedures and requirements, to waive any and/or all informalities upon a finding of the City it is in the public interest to do so and to postpone award of the Contract for a period not to exceed thirty (30) days.

For additional information, contact Scott Roe, Project Manager, scott.roe@pendletonor.gov or 541 969- 3148 or Jeff Brown, Public Works Director, jeff.brown@pendletonor.gov or 541 969-3083.

Dated this 29th day of August 2024.

Request for Proposals / Quotes - Well 11 & Well 1 lB Pumping Systems Page 1 ofl

INFORMATION FOR PROPOSERS

Information for Proposers – Well 11 & Well 11B Pumping Systems Page 1 of 2

The City of Pendleton, herein referred to as City, has two wells, Well 11 and Well 11B, that are approximately 50’ apart located near the Wastewater Treatment Resource Recovery Facility, 4300 SW Houtama Road, Pendleton, Oregon. The wellhouses will be addressed to 4315 SW Houtama Road. Well 11 has a 10-inch casing for 20-feet and an open bore measured with a diameter of 9-plus-inches+ to a depth of 350-feet. Well 11B has a 20-inch diameter casing to 257-feet, then a 19-inch open bore to 400-feet. Static levels are the same on both wells, but the specific capacity is different at both locations.

From ground surface elevation of 1005-feet MSL Static water level @ + 218-feet Well 11 pump set at 320-feet Well 11 specific capacity: + 50 gpm / foot drawdown Well 11B pump set at 340-feet Well 11B specific capacity: +/- 10 gpm / foot drawdown System discharge pressure at 138 psi (319.5’).

The pumping equipment installation is to be coordinated wellhouses construction for both cased wells that includes the necessary piping / fittings to put them into service to a new 16-inch domestic water line. The wellhouses work will include, but is not limited to, erosion control, site work, rock excavation, rough grading, fine grading, gravel surfacing, building construction, piping, thrust restraint, valves, flow meters, vaults, disinfection systems, fire extinguishers, auxiliary sensors and probes, louvers, exhausts, heating, AC units, some demolition, electrical, and service equipment. This work has been bid and awarded.

City is purchasing the pumping systems consisting of two each 150 HP motors, discharge heads, column piping, pumping bowls, and access tubes. Sheet M-101, M-103, M-106, M-201, M-202, and M-205; Well 11 well log, Well 11 caliper log, and Well 11B well log; and Technical Specification 43 05 15 – Owner Furnished Equipment are included in the Request for Proposals packet for pumping systems quotes. City will provide discharge head submittal for Wellhouses Contractor review and possible field adjustment(s) to pump pedestal(s) prior to pumping systems installation. Contractor will need to account for access installation of the pumping systems after the pump pedestals (M-106 / M-205) have been completed, with minimum 7-days concrete cure, and before CMU wall construction commences.

City of Pendleton is also purchasing Allen Bradley variable frequency drives (VFDs) for delivery to the project site and installation by Wellhouses Contractor. City will provide the VFD submittal information to contractor and oversee the testing of the VFDs for start-up of the facilities.

Project is funded from Business Oregon Special Public Works Fund. After presentation of the application for payment to Owner with Engineer’s recommendation, the amount recommended will become due upon Owner’s deposit receipt of Special Public Works Funds, typically fourteen

(14) but up to twenty-eight (28) calendar days, or thirty-five (35) calendar days, whichever comes first.

INFORMATION FOR PROPOSERS

Information for Proposers – Well 11 & Well 11B Pumping Systems Page 2 of 2

PROPOSALS ARE TO BE PRESENTED AS A LUMP SUM TOTAL WITH THE FOLLOWING ITEMIZED

COST BREAKDOWN:

Motor Discharge head & sole plate Two access tubes each Column Shaft, spiders, and bushings Pump with pump curve(s) information included Installation / start-up

For more information, contact Jeff Brown at 541 966-0241 or 541.969.3083.

Proposer may provide optional Proposals / Quotes, based on Proposers recommended pump bowl(s) and/or motor(s) as alternatives for Owner approval. Intent of Proposer must be clear and easy to determine by Owner. Owner reserves the right to select the best Proposal / Quote solely at the Owner’s discretion.

SPECIAL SPECIFICATIONS

Special Specifications – Well 11 & Well 11B Pumping Systems Page 1 of 4

Contractor agrees to indemnify and save harmless the City of Pendleton, herein referred to as City, from any-and-all defects appearing or developing in the materials furnished under this Proposal for a period of one (1) year from the date of each startup and Final Acceptance by the City.

Staff will present the responsive Proposal consideration for City Manager or City Council award consideration and recommend City Manager or City Council grant approval to issue a Purchase Order for completion of the work.

The City has two wells, Well 11 and Well 11B, that are approximately 50-feet apart. The wellhouses will be addressed to 4315 SW Houtama Road, Pendleton, Oregon 97801. Well 11 has a 10-inch casing for 20-feet and an open bore measured with a diameter of 9-plus-inches to a depth of 350-feet. Well 11B has a 20-inch diameter casing to 257-feet then is 19-inch open bore to 400-feet. Static levels are the same for each well, but the specific capacity is different at each location. City staff support and understand the risk involved to install 8-inch bowl assembly at Well 11. City is also purchasing and installing a 250 HP variable frequency drive for Well 11B and is upsizing the Well 11B pumping system accordingly.

From ground surface elevation of 1005-feet MSL:

Static water level @ + 218-feet Well 11 top of pump bowl assembly to be set at 300-feet Well 11 specific capacity: + 50 gpm / foot drawdown Well 11B top of pump bowl assembly to be set at 340-feet Well 11B specific capacity: +/- 10 gpm / foot drawdown System discharge pressure at 138 psi (319.5’).

The schedule of work will include, but not be limited to, the following improvements:

1. WELL 11:

a) Provide new steel discharge head. Discharge head must have 12-inches minimum clearance for access to packing. With OHSA approved shaft guard, discharge head must also make allowances for two access ports through the pump base. 1-inch NPT for pre-lube connection to be provided.

Discharge head must accommodate weight of assembly and wellhead opening. Discharge piping is 8-inch. Coating inside and out to be applied to manufactures recommendations to meet NSF 61 standards. See Sheet M-205 – Well 11 Pump Pedestal Details for more information.

b) Provide sole plate for discharge head flange. See Sheet M-205 for details.

c) Weld casing extensions on if needed for correct finish elevation.

d) Install two stainless steel access tubes from top of bowls through new discharge head each access tube shall be no less than ¾-inch diameter and be attached to column pipe on maximum 20-foot centering with stainless steel banding. Last 20-feet plus feet to extend through discharge head shall be ½-inch Sch 80 PVC extended no less than 1-foot through discharge head to assure regulatory compliance. Provide rubber slip-on boot for 1-inch diameter sufficient to cover 1 1/2-inch diameter access tube openings.

e) The well column pipe shall be 6-inch and furnished in sections not exceeding a nominal length of

10-feet and shall be connected by threaded-sleeve couplings.

Special Specifications – Well 11 & Well 11B Pumping Systems Page 2 of 4

f) The line shaft shall be 416SS steel ground and polished. They shall be furnished in inter-changeable sections not over 10-feet in length and shall be coupled with 304 stainless steel threaded couplings designed with a safety factor of one and a half times the shaft safety factor.

g) Pump assembly shall provide 600 gpm at 595-feet of total dynamic head. The top of pump assembly shall be set at 300-feet. Impeller shall be the enclosed type. They shall be free from defects and must be accurately cast, machined, and filed for optimum performance and minimum vibration. Impellers shall be statically and dynamically balanced at the factory to grade G6.3 of ISO 1940 as minimum. They shall be securely fastened to the bowl shaft with taper locks 416 or 316 SS (or key and split thrust ring of SS). They shall be adjustable vertically by means of a nut in the driver.

h) 150 HP motor shall be a heavy-duty Premium Efficient, Inverter Duty, 1800 RPM vertical hollow shaft motor, with a non-reverse ratchet to prevent reverse rotation of the rotating elements. The brake horsepower required by the pump curve shall not exceed the rated nameplate horsepower of the motor. A thrust bearing of ample capacity to carry the weight of all rotating parts plus the maximum hydraulic thrust load under all conditions of operation calculated L10 life shall be no less than 8800 hours. Provision shall be made for momentary up thrust equal to 30 percent of the rated down thrust. 1.15 service factor, and suitable for use on 480-Volt, 3-phase, 60-Hertz electric service. A solid coupling shall be provided at the discharge head for setting the impeller to bowl running clearance.

i) The suction bowl or suction bell shall be provided with non-soluble grease packed bronze bearing.

Bowl Bearings will be constructed of steel back rubber. A bronze 416 SS sand collar shall be provided to protect this bearing from abrasives in the pumping fluids. The bearing housing shall have sufficient opening at the bottom for easy removal of the bearing. A galvanized strainer will be provided. It shall have a net inlet area equal to at least three times the impeller inlet area. The maximum opening shall not be more than 75 percent of the maximum opening of the water passage through the bowl or impeller.

2. WELL 11B:

a) Provide new steel discharge head. Discharge head to accommodate 8-inch column in lieu of 12-inch column specified and shown in the drawings. With OHSA approved shaft guard, discharge head must also make allowances for two access ports through the pump base. 1-inch NPT for pre-lube connection to be provided. Discharge head must accommodate weight of assembly and wellhead opening. Discharge piping is 12-inch. Coating inside and out to be applied to manufactures recommendations to meet NSF 61 standards. See Sheet M-106 – Well 11B Pump Pedestal Details for more information.

b) Provide sole plate for discharge head flange. See Sheet M-106 for details.

c) Weld casing extensions on if needed for correct finish elevation.

d) Install two stainless steel access tubes from top of bowls through new discharge head: each access tube shall be no less than 1-inch diameter and be attached to column pipe on maximum 20-foot centering with stainless steel banding. Last 20-feet plus feet to extend through discharge head shall be Sch 80 PVC extended no less than 1-foot through discharge head. Provide rubber slip-on boot for 1-inch diameter sufficient to cover 1 1/2-diameter access tube openings.

Special Specifications – Well 11 & Well 11B Pumping Systems Page 3 of 4

e) The well column pipe shall be 8-inch and furnished in sections not exceeding a nominal length of 10-feet and shall be connected by threaded-sleeve couplings.

f) The line shaft shall be 416SS steel ground and polished with surface finish not to exceed 40 RMS.

They shall be furnished in interchangeable sections not over 10-feet in length and shall be coupled with 304 stainless steel threaded couplings designed with a safety factor of one and a half times the shaft safety factor.

g) Pump assembly shall provide 900 gpm at 650-feet of total dynamic head with top of pump bowl assembly set at 340-feet. Impellers shall be the enclosed type. They shall be free from defects and must be accurately cast, machined, and filed for optimum performance and minimum vibration.

Impellers shall be statically and dynamically balanced at the factory to grade G6.3 of ISO 1940 as minimum. They shall be securely fastened to the bowl shaft with taper locks 416 or 316 SS (or key and split thrust ring of SS). They shall be adjustable vertically by means of a nut in the driver.

h) 250 HP motor shall be a heavy-duty Premium Efficient, Inverter Duty, 1800 RPM vertical hollow shaft motor, with a non-reverse ratchet to prevent reverse rotation of the rotating elements. The brake horsepower required by the pump curve shall not exceed the rated nameplate horsepower of the motor. A thrust bearing of ample capacity to carry the weight of all rotating parts plus the maximum hydraulic thrust load under all conditions of operation calculated L10 life shall be no less than 8800 hours. Provision shall be made for momentary up thrust equal to 30 percent of the rated down thrust. 1.15 service factor, and suitable for use on 480-Volt, 3-phase, 60-Hertz electric service. A solid coupling shall be provided at the discharge head for setting the impeller to bowl running clearance.

i) The suction bowl or suction bell shall be provided with non-soluble grease packed bronze bearing.

Bowl Bearings will be constructed of steel back rubber. A bronze 416 SS sand collar shall be provided to protect this bearing from abrasives in the pumping fluids. The bearing housing shall have sufficient opening at the bottom for easy removal of the bearing. A galvanized strainer will be provided. It shall have a net inlet area equal to at least three times the impeller inlet area. The maximum opening shall not be more than 75 percent of the maximum opening of the water passage through the bowl or impeller.

3. INSTALLATION, START-UP, AND FINAL ACCEPTANCE:

a) Proposer must install pumping systems in coordination with Wellhouses Contractor when the pump pedestals construction has cured for 7-days.

b) Proposer must be on-site for initial start-up by Owner and Wellhouses Contractor.

c) Final acceptance will not occur until after start-up of the new pump systems are completed to the satisfaction of the Owner. This will be the basis for Final Payment.

4. BASIS FOR MEASUREMENT AND PAYMENT:

a) The basis for measurement and payment for all work performed under this Quote shall be lump sum under City of Pendleton issued Purchase Order. Payment to Proposer shall be made as follows:

1. Receipt of invoices for approved materials on hand plus 15% mark-up for OHP; and

2. 75% of lump sum remainder after field installation is completed; and

Special Specifications – Well 11 & Well 11B Pumping Systems Page 4 of 4

3. Final lump sum remainder when all the work has been completed and tested to the satisfaction of the Owner. This includes any change order considerations and submittal of certified payroll reports for all on-site related work.

b) Change order consideration may require additional Purchase Order to be issued based on agreed cost estimate. Payment to Contractor shall be made as follows: receipt of invoices for approved materials and actual labor summary, plus 15% mark-up for OHP.

SECTION 43 0515 - INSTALLATION OF OWNER-FURNISHED PRODUCTS

PART 1 GENERAL

1.1 SCOPE

A. Work necessary to coordinate delivery, inspection, assembly, installation, and connection to, and testing of Owner-furnished equipment (OFE) and appurtenances.

B. Contractor to coordinate this work with Owner-furnished equipment manufacturer, including scheduling work and the installation and location of anchor bolts.

C. Equipment Specifications and Drawings are attached to this specification. Owner and

Owner's Representative, along with Manufacturer, will provide all available information defining equipment to be installed.

1.2 DEFINITIONS

A. Manufacturer: Where "manufacturer" is referred to in this section, it refers to the party under separate Contract with the Owner for furnishing the material or equipment products purchased by the Owner. Such a party may be referred to as

"Contractor for Owner-furnished products", or "Owner-furnished equipment

Contractor" in other sections.

B. Transfer: "Transfer" of Owner-furnished products to the Contractor refers to the time when manufacturer's instructions for unloading, handling, storage, and protection have been received; products have been delivered to the job site, inspected, assembled, and installed, and Owner has accepted such products as ready for connection by the Contractor.

1.3 CONTRACTOR'S RESPONSIBILITY FOR COMPLETE SYSTEM

A. Contractor shall have complete responsibility for connecting to, protecting and maintaining of Owner-furnished products. The Contractor shall assist the

Manufacturer with the pre-startup lubricating, testing, and operational startup of

Owner-Furnished products.

B. Provide and coordinate the construction of interconnecting structures, equipment, piping, electrical and instrumentation work, and appurtenances to achieve installation and operation of the Owner-Furnished products as shown and specified and as required to provide a complete and functional system.

C. Contractor shall notify Owner immediately of any damage, misalignment, or interconnection problems associated with Owner-furnished equipment.

21-3133

Well 11-11B

Installation of Owner-Furnished Equipment

43 05 15-1

PART 2 PRODUCTS

2.1 GENERAL

A. Provide products required to complete the work under this section. Such products include, but are not limited to, foundations, anchor bolts, connecting piping and valves, hangers and supports, motor starters and wiring, and controls, unless specifically specified as "Owner-Furnished" or shown in Supplier shop drawings and identified as "Owner-Furnished".

2.2 MISCELLANEOUS PRODUCTS

A. General: Furnish incidental products, such as gaskets, supports, bolts, and miscellaneous lubricants, as shown and as required for proper operation of equipment installed under this section. Products shall conform to applicable sections of these Specifications for the intended service.

B. Equipment Pads: Provide equipment pads/pedestals for Owner-furnished equipment as shown on the Drawings. Contractor shall verify exact dimensions and configuration of all pads, including required penetrations, with the Manufacturer's shop drawings.

C. Anchor Bolts: Anchor bolts, fasteners, washers, etc., needed for installation of Owner furnished equipment will be specified by the Manufacturer.

PART3

1. Locate anchor bolts in accordance with Manufacturer's shop drawings and installation instructions. Templates or detailed drawings will be furnished by the

Manufacturer.

EXECUTION

3.1 GENERAL

A. Connection work shall conform with Manufacturer's recommended procedures, instructions, and shop drawings, as reviewed by the Owner's Representative.

B. Coordinate with each Manufacturer the equipment delivery schedule.

C. Protect Owner-furnished products.

D. Maintain complete inventory on all Owner-furnished products.

E. Install piping, valves, and miscellaneous fittings, in accordance with Manufacturer's instructions.

21-3133

Well 11-11B

Installation of Owner-Furnished Equipment

43 05 15-3

Hydraulics Analysis - Well 11

Knowns/Assumptions:

1 South Hill Reservoir 1320 ' MSL 2 Approximate Floor Elevation 1005 ' MSL 3 Static Water Level 787 ' MSL 4 Drawdown Estimate: 600 gpm

+/- 50 gpm / foot drawdown 775 ' MSL Feet below floor elevaton 230 feet

5 Head Loss Distribution System 25 feet 6 Head Loss Column Pipe 15 feet

6" Column Length 300 lineal feet 7 Future native ground water decline 10 feet

TDH Requirements (1 - 4 + 5 + 6 + 7):

Best fit for 150 HP motor for normal production:

+/- 550 gpm 594 feet +/- 600 gpm 595 +/- 650 gpm 596

Formula:

HP = TDH + GPM

3960 x 0.6

0.6 = pump eff x motor eff

Use level & pressure control for pump to waste SCADA programming

1005' MSL - Floor Elevation

775' MSL - PWL @ 600 gpm

Overflow Elevation - 1326

Low Operating Elevation - 1314

South Hill Reservoirs

705' MSL - Top of Pump Bowls

Well 11

787' MSL - SWL

300 Lineal Feet Column Pipe & Access Tubes

- 655' MSL - Bottom of Hole

Depth

1ft:200ft

Caliper

8 14in

20.00

40.00

60.00

80.00

100.00

120.00

140.00

160.00

180.00

200.00

220.00

240.00

260.00

280.00

300.00

320.00

Hydraulics Analysis - Well 11B

Knowns/Assumptions:

1 South Hill Reservoir 1320 ' MSL 2 Approximate Floor Elevation 1005 ' MSL 3 Static Water Level 787 ' MSL 4 Drawdown Estimate: 550 gpm

+/- 10 gpm / foot drawdown 732 ' MSL Feet below floor elevaton 268 feet

5 Head Loss Distribution System 20 feet 6 Head Loss Column Pipe 5 feet

12" Column Length 340 lineal feet 7 Future native ground water decline 10 feet

TDH Requirements (1 - 4 + 5 + 6 + 7):

Best fit for 150 HP motor for normal production:

+/- 510 gpm 625 feet +/- 565 gpm 625 +/- 610 gpm 635

Formula:

HP = TDH + GPM

3960 x 0.6

0.6 = pump eff x motor eff

Use level & pressure control for pump to waste SCADA programming

NOTE: FUTURE

Specific capacity expected to improve with time to match Well 11. 250 HP VFD being installed inititially.

1005' MSL - Floor Elevation

732' MSL - PWL @ 560 gpm

Overflow Elevation - 1326" MSL

Low Operating Elevation - 1314' MSL

Reservoirs

665' MSL - Top of Pump Bowls

Well 11B

787' MSL - SWL

340 Lineal Feet Column Pipe & Access Tubes

- 605' MSL - Bottom of Hole

Amended 5/17/2023

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