Amendment 002_0002.pdf

(x)

140R6020R0025 x x

1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

Billings MT 59107

R60

PO Box 36900 Regional Office Great Plains Region Bureau of Reclamation

03/19/20210002

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

02/11/2021

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

Membrane Filtration Unit

See Attached for changes:

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Stormy Gallagher

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

Solicitation# 140R6020R0025

Amendment No. 0002

Description of Changes:

1. In Part I – Section B – Price Schedule delete in its entirety and replace with Section B – Price

Schedule.

2. In Part I – Section C – Specifications delete Section 46 61 33 – Membrane Filtration System in its entirety and replace with revised Section 46 61 33 – Membrane Filtration System.

3. In Part I – Section F - Deliveries or Performance delete in its entirety and replace with revised

Section F - Deliveries or Performance.

4. In Part IV -- Section M – Evaluation Factors for Award delete in its entirety and replace with revised Section M – Evaluation Factors for Award.

Acknowledgement: See Block 11 above regarding how to acknowledge this amendment. The

Government must receive the acknowledgement at the place designated for receipt of bids (See Block

10 of the Standard Form 1442).

Third Party: If you have given a copy of the solicitation to someone else, please forward this amendment accordingly.

Leadville Mine Treatment Plant and Facilities Supply of Membrane Filtration System Amendment No. 002 Leadville Mine Drainage Tunnel Project, Colorado Solicitation Number: 140R6020R0025

Price Schedules Revised B - 1

CONTINUATION OF

SECTION B – SUPPLIES OR SERVICES AND COSTS

LEADVILLE MINE TREATMENT PLANT AND FACILITIES

SUPPLY OF MEMBRANE FILTRATION SYSTEM

LEADVILLE MINE DRAINAGE TUNNEL PROJECT, COLORADO

B.1 PRICE SCHEDULES

(a) Offers will be considered for award on the following Price Schedules, but no offer will be considered for award on only part of the Price Schedules.

(1) Offerors shall complete Price Schedules 1 through 4. Offers for less than the total of Schedules 1 through 4 will be considered nonresponsive and will not be evaluated for award.

(2) Offers will be evaluated based on the total of Price Schedule 1 and based on pricing offered in Optional Price Schedules 2, 3, and 4.

(3) Government will award Price Schedule 1. Optional Price Schedules 2, 3, and 4 may be awarded if required. If required, Optional Price Schedule 4 shall be in accordance with FAR 52.217-7, Option for Increased Quantity-Separately Priced Line Item, with an option exercise period of within 588 days after Notice to Proceed.

(b) Offers are subject to terms and conditions of this solicitation.

(c) Quantities in the Price Schedule are estimated quantities for comparison of offers only.

Except as provided in contract clause at FAR 52.211-18, Variation in Estimated Quantity, no claim shall be made against Government for overruns or underruns.

(d) Definitions:

(1) CLIN – Contract Line Item Number.

PRICE SCHEDULE 1

CLIN Section Supplies or Services Quantity and Unit

Unit Price

Amount

1 46 61 33 Membrane Filtration System – Fabrication

For the lump-sum of $

2 46 61 33 Membrane Filtration System – Delivery

For the lump-sum of $

Leadville Mine Drainage Tunnel Project, Colorado Solicitation Number: 140R6020R0025

Price Schedules Revised B - 2

PRICE SCHEDULE 1

CLIN Section Supplies or Services Quantity and Unit

Unit Price

Amount

3 46 61 33 Membrane Filtration System – Spare Parts

For the lump-sum of $

4 46 61 33 Membrane Filtration System – Base Warranty

For the lump-sum of $

TOTAL FOR PRICE SCHEDULE 1 $_________________

OPTIONAL PRICE SCHEDULE 2

CLIN Section Supplies or Services Quantity and Unit

Unit Price

Amount

5 46 61 33 Membrane Filtration System – Warranty Extension 1

For the lump-sum of $

TOTAL FOR OPTIONAL PRICE SCHEDULE 2 $_________________

OPTIONAL PRICE SCHEDULE 3

CLIN Section Supplies or Services Quantity and Unit

Unit Price

Amount

6 46 61 33 Membrane Filtration System – Warranty Extension 2

For the lump-sum of $

TOTAL FOR OPTIONAL PRICE SCHEDULE 3 $_________________

OPTIONAL PRICE SCHEDULE 4

CLIN Section Supplies or Services Quantity and Unit

Unit Price

Amount

7 46 61 33 Membrane Filtration System – Storage

3 months $ $

TOTAL FOR OPTIONAL PRICE SCHEDULE 4 $_________________

Leadville Mine Drainage Tunnel Project, Colorado Solicitation Number: 140R6020R0025

Price Schedules Revised B - 3

GRAND TOTAL:

SCHEDULE 1 + SCHEDULE 2 + SCHEDULE 3 + SCHEDULE 4: $___________________

END OF SUPPLIES OR SERVICES AND COSTS

Leadville Mine Drainage Tunnel Project, Colorado Solicitation Number: 140R6020R0025

Price Schedules Revised B - 4

This page intentionally left blank.

Leadville Mine Drainage Tunnel Project, Colorado Solicitation No. 140R6020R0025

Membrane Filtration System Revised 46 61 33 - 1

SECTION 46 61 33

MEMBRANE FILTRATION SYSTEM

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Membrane Filtration System – Fabrication:

1. Payment: Lump-sum price offered in the Price Schedule:

a. Includes:

1) Submittal approval drawings and data.

2) Fabrication.

3) Electrical and control panels.

4) Instrumentation.

5) Programming.

6) Startup and testing.

7) Training: Two multi-session training courses to accommodate Government employees working alternate shifts.

8) Operation and maintenance manuals.

B. Membrane Filtration System – Delivery:

1. Payment: Lump-sum price offered in the Price Schedule.

a. Includes delivery to project site.

b. Does not include unloading at the project site. Unloading at the project site shall be by others as part of the Water Treatment Plant Replacement project.

C. Membrane Filtration System – Spare Parts:

1. Payment: Lump-sum price offered in the Price Schedule. Includes extra materials as specified herein.

D. Membrane Filtration System – Base Warranty:

1. Payment: Lump-sum price offered in the Price Schedule. Includes Base Warranty as specified herein.

E. Membrane Filtration System – Warranty Extension 1:

1. Payment: Lump-sum price offered in the Optional Price Schedule 2. Includes Warranty Extension 1 as specified herein.

Leadville Mine Drainage Tunnel Project, Colorado Solicitation No. 140R6020R0025

Membrane Filtration System

Revised 46 61 33 - 2

F. Membrane Filtration System – Warranty Extension 2:

1. Payment: Lump-sum price offered in the Optional Price Schedule 3. Includes Warranty Extension 2 as specified herein.

G. Membrane Filtration System – Storage:

1. Payment: Unit price offered in the Optional Price Schedule 4.

1.02 DEFINITIONS

A. Backwash: Frequent periods of reversed flow direction across membrane, with or without added chemicals, from permeate to feed to remove accumulated solids from membrane surface.

B. Clean-in-Place (CIP): Any instance in which a membrane train is taken offline and subjected to cleaning chemicals to mitigate scaling or fouling constituents and decreases in membrane flux and/or increases in Transmembrane Pressure (TMP).

C. Feed: Influent water to Membrane Filtration System.

D. Flux: Permeate flow rate divided by membrane filtration surface area per measure of time.

E. Functional Testing: Tests necessary to demonstrate installed Membrane Filtration System functions as specified and operates in manner intended. Functional testing is prerequisite to performance testing for Membrane Filtration System specified to have a performance test.

F. Installing Contractor: Entity, under separate contract with Government, whose responsibilities include installation of Membrane Filtration System provided under this contract.

G. Manufacturer: Party responsible for design, fabrication, delivery, startup and commissioning, training, and warranty of Membrane Filtration System.

H. Module: Single membrane element containing group/bundle of membrane fibers.

I. Performance Testing: Tests necessary to demonstrate, after successful functional testing, Membrane Filtration System meets specified performance requirements.

J. Permeate: Low total suspended solids/turbidity water produced by Membrane Filtration System. Net permeate flow is total permeate flow minus flow diverted to backwashing and CIP events, and is calculated by multiplying recovery by feed flow.

K. Process Water: Water supply to be treated by Membrane Filtration System.

L. Recovery: Permeate volume divided by feed volume over 24-hour period, subtracting all volume lost to backwash including CIP and backwash.

M. Service Water: Backflow-prevented water supply for WTP support applications.

Revised 46 61 33 - 3

N. Train: Group of membrane modules on skid with common feed, permeate, and waste lines capable of operating independently from other membranes/membrane skids in Membrane Filtration System. Independent operation shall include permeate production, backwashing, CIP, and integrity testing.

O. Transmembrane pressure (TMP): Pressure drop across membranes, from feed to permeate.

1.03 REFERENCE STANDARDS

A. American Institute of Steel Construction (AISC)

1. AISC 360-2016 Specification for Structural Steel Buildings, 15P th P Edition

B. American Society of Civil Engineers (ASCE)

1. ASCE 7-2016 Minimum Design Loads and Associated Criteria for Buildings and Other Structures

C. American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)

1. ASHRAE-2017 ASHRAE Handbook - Fundamentals

D. American Society of Mechanical Engineers (ASME)

1. ASME A13.1-2015 Scheme for the Identification of Piping Systems

2. ASME BPVC IX-2019 Boiler and Pressure Vessel Code - Section IX - Welding and Brazing Qualifications

3. ASME B1.20.1-2013(R2018) Pipe Threads, General Purpose

4. ASME B16.5-2017 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard

5. ASME B16.9-2008 Factory Made Wrought Buttwelding Fittings

6. ASME B16.21-2016 Nonmetallic Gaskets for Pipe Flanges

7. ASME B16.34-2017 Valves- Flanged, Threaded and Welding End

8. ASME B31.3-2018 Process Piping

9. ASME B36.10M-2018 Welded and Seamless Wrought Steel Pipe

10. ASME B36.19M-2018 Stainless Steel Pipe

11. ASME B40.100-2013 Pressure Gauges and Gauge Attachments

12. ASME B40.200-2008 Thermometer, Direct Reading and Remote Reading

Revised 46 61 33 - 4

13. ASME PCC-1-2019 Guidelines for Pressure Boundary Bolted Flange Joint Assembly

E. ASTM International (ASTM)

1. ASTM A53/A53M-18 Pipe, Steel, Black, and Hot-Dipped, Zinc- Coated, Welded and Seamless

2. ASTM A105/A105M-18 Carbon Steel Forgings for Pipe Applications

3. ASTM A153/A153M-8 Zinc Coating (Hot-Dip) on Iron and Steel Hardware

4. ASTM A193/A193M-19 Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High-Pressure Service and Other Special Purpose Applications

5. ASTM A194/A194M-18 Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both

6. ASTM A216/A216M-18 Standard Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service

7. ASTM A234/A234M-18a Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service ASTM A307

8. ASTM A312/A312M-15a Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

9. ASTM A380/A380M-17 Cleaning, Descaling and passivation of Stainless Steel Parts, Equipment and Systems

10. ASTM A395/A395M-99(R2018) Ferritic Ductile Iron Pressure-Retaining Castings for use at Elevated Temperatures

11. ASTM A403/A403M-19 Wrought Austenitic Stainless Steel Piping Fittings

12. ASTM D1784-11 Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds

13. ASTM D1785-15e1 Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120

14. ASTM D2241-15 Poly (Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series)

Revised 46 61 33 - 5

15. ASTM D2464-15 Threaded Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80

16. ASTM D2467-15 Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80

17. ASTM D2564-12 Solvent Cements for Poly (Vinyl Chloride) (PVC) Plastic Piping Systems

18. ASTM D3350-14 Polyethylene Plastics Pipe and Fittings Materials

19. ASMT D4894-19 Polytetrafluoroethylene (FTPE) Granular Molding and Ram Extrusion Materials

20. ASTM F714-13 Standard Specifications for Polyethylene (PE) Plastic Pipe (SDR-PR) Based on Outside Diameter

21. ASTM F1545a-15 Plastic-Lined Ferrous Metal Pipe, Fittings and Flanges

22. ASTM F1970-19 Standard Specification for Special Engineered Fittings, Appurtenances or Valves for use in Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl Chloride) (CPVC) Systems

F. American Water Works Association (AWWA)

1. AWWA C504-10 Rubber-Seated Butterfly Valves 3 in.

(75 mm) through 72 in. (1,800 mm) in diameter

2. AWWA C512-07 Air-Release, Air/Vacuum, and Combination Air Valves for Waterworks Service

3. AWWA C901-17 Polyethylene (PE) Pressure Pipe and Tubing, 3/4 In. (19 mm) Through 3 In.

(76 mm), for Water Service

4. AWWA C906-15 Polyethylene (PE) Pressure Pipe and Fittings, 4 in. (100mm) Through 63 in.

(1,575 mm), for Water Transmission and Distribution

G. American Welding Society (AWS)

1. AWS D1.1/D1.1M-2020 Structural Welding Code – Steel

2. AWS D1.6/D1.6M-2017 Structural Welding Code – Stainless Steel

H. Commercial Item Description (CID)

Revised 46 61 33 - 6

1. CID A-A-1923A-1995 Shield Expansion (Lag, Machine and Externally Threaded Wedge Bolt Anchors

I. International Code Council (ICC)

1. IBC-2018 International Building Code

2. IFC-2018 International Fire Code

J. International Organization for Standardization (ISO)

1. ISO 5211:2017 Industrial Valves — Part-Turn Actuator Attachments

K. Manufacturers Standardization Society of the Valve and Fittings Industry (MSS)

1. MSS-SP-58-2018 Pipe Hangers and Supports

2. MSS-SP-67-2017 Butterfly Valves

3. MSS-SP-71-2018 Gray Iron Swing Check Valves, Flanged and Threaded Ends

4. MSS-SP-72-2010 Ball Valves with Flanged or Butt-Welded ends for General Service

5. MSS-SP-99A-2016 Instrument Valves

6. MSS-SP-105A-2016 Instrument Valves for Code Applications

7. MSS-SP-110-2010 Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends

8. MSS-SP-122-2017 Plastic Industrial Ball Valves

L. National Electrical Manufacturer’s Association (NEMA)

1. NEMA 250-2018 Enclosures for Electrical Equipment (1,000-Volts Maximum)

2. NEMA MG 1-2016 Motors and Generators

M. National Fire Protection Association, Inc. (NFPA)

1. NFPA 70-2020 National Electrical Code (NEC)

N. United States Environmental Protection Agency (EPA)

1. EPA SmartWay Available at:

https://www.epa.gov/smartway

2. EPA Substitutes in Coatings Available at:

https://www.epa.gov/snap/substitutes-coatings

Revised 46 61 33 - 7

1.04 SUBMITTALS

A. Submit in accordance with Sections 01 33 00 – Submittals and 01 33 26 – Electrical and Control Drawings and Data.

B. RSN 46 61 33-1, Approval Drawings and Data:

1. Manufacturer’s data including:

a. Model number.

b. Materials of construction.

c. Equipment configuration.

d. Installation details.

e. Equipment weight, including empty weight and maximum operating weight of each major item of equipment.

f. Elastomer chemical compatibility.

g. Coatings for each component, including instrumentation.

h. Membrane pre-screen filter information, including clean and dirty head loss, connection sizes, drain size, controls, and manufacturer’s cutsheets.

i. Loose supplied instrumentation.

j. Product data for all system components including but not limited to piping, tubing, valves, pumps, tanks, mixers, controls, instrumentation, and appurtenances, including all components to be used in Clean-in-Place System.

k. Manufacturer recommended spare parts list.

l. Membrane fiber repair kit schematic, instructions, and parts list.

2. Manufacturer’s process system design information including, but not limited to, the following:

a. Design calculations confirming compliance with the design requirements in Table 46 61 33C – Design Requirements.

b. Minimum and maximum flow rates in gallons per minute (gpm).

c. Chemical supply requirements, including pressure, flow, and piping connection types, sizes, and locations.

d. Service water requirements, including pressure, flow, and piping connection types, sizes, and locations.

e. Compressed air supply requirements, including pressure, flow, air quality, and piping connection types, sizes, and locations.

f. Instrument air supply requirements, including pressure, flow, air quality, and piping connection types, sizes, and locations.

Revised 46 61 33 - 8

g. Calculations for feed pump sizing for expected flow rate range.

h. Calculations for CIP pump sizing.

i. Calculations for backwash pump sizing.

3. Drawings:

a. Assembly, installation, layout, and dimensional drawings including general arrangement, equipment connections, and internal components.

Clearance around each air stripper unit required for installation, operation, and maintenance.

b. Drawings showing anchor bolts with dimensions, embedment depths, and sizes.

c. Wiring and schematic diagrams.

d. Drawings for CIP system layout.

e. Drawings for backwash pump system layout.

f. Valve list, instrument list, bill of materials, P&IDs, and material schedule.

Include bill of materials for motors, valves (including actuators and limit switches), instrumentation, and tanks.

g. Engraving schedule and physical dimensions for nameplates.

4. List of all instrumentation to be provided, with descriptive information for each component.

5. Structural Design Data:

a. Reactions at attachment points for dead, live, and seismic loading.

b. Dimensioned drawings (plan and elevations) showing attachment points, train weight (empty and maximum operating weight), and center of mass of membrane filtration skid.

c. Structural calculations for reactions at attachments signed and stamped by a licensed Professional Engineer.

6. Factory acceptance testing procedures.

7. Manufacturer’s instructions for handling, storage, and installation including maintenance schedule. Installation instructions shall include installation details, detail dimensions, locations of connections, interconnecting piping, instrument locations, and tank orientations.

8. Field test procedures.

9. Warranty information.

10. Tanks:

a. Dimensional tank drawings to include the minimum following requirements:

Revised 46 61 33 - 9

1) Overall tank dimension.

2) Slope angle on tank bottom.

3) Nozzle locations on plan and elevation views and size.

4) Fabricator’s detailed requirements for tank foundations and anchors including foundation pad block-out requirements.

b. Materials of construction.

c. Recommended bolt torques for bolted connections.

d. Shipping, storage and protection, and handling instructions.

e. Fabricator’s written/printed installation and tank support instructions.

11. Pumps:

a. Pump and system curve graphs at minimum, average and maximum flow conditions including flow rate, total dynamic head, efficiency, net positive suction head required, and power.

1) Indicate operating point(s) of each pump on curves.

2) Curves for all impeller sizes for a given casing.

b. Manufacturer data sheets.

c. Materials of construction.

d. Installation instructions.

e. Dimensional pump drawings.

12. Motors:

a. Dimensional drawings.

b. Data sheets including the following minimum requirements:

c. Horsepower and RPM at rated load.

d. Temperature rise and insulation class.

e. Voltage/phase/frequency.

f. Load rated amperage and locked rotor amperage.

g. Maximum noise levels.

h. Motor efficiency.

i. Service factor.

j. Nameplate information.

13. Electrical and Controls:

a. Electrical load list including voltage and full load current of all electrical loads.

Revised 46 61 33 - 10

b. Vendor control panel materials of construction.

c. Manufacturers, types, and models of electrical and control devices.

d. Operational control descriptions and control logic.

1) Include I/O list and data point list for programmable controller;

include address locations for data points and other information to support programming of communication links to customer supplied systems.

2) Drawings of OIT graphic displays.

e. Manufacturer’s Installation Instructions: Provide connection requirements, installation procedures, and start-up instructions.

f. Schematic and wiring drawings for all contractor supplied systems and components.

1) Includes the following:

a) Conductor and raceways sizes for Contractor supplied components as well as customer interface to Contractor components.

b) Connections between customer supplied components, even if located on different skids, or wired by the Government.

c) Identification of all external connections, or other Government supplied or installed connections.

g. Control panel and box layout drawings:

1) Include panel layout showing devices and components with component identification.

2) Layout drawing shall identify conduit entry locations as well as box and panel dimensions.

C. RSN 46 61 33-2, Qualifications:

1. Manufacturer qualifications.

2. Welding qualifications.

D. RSN 46 61 33-3, Material Certification:

1. Certificates and Affidavits: Factory test certificates, including Contractor source quality testing specified herein. Furnish prior to shipment of materials.

2. Instrument calibration certificates.

E. RNS 46 61 33-4, Test Plan:

1. Detailed procedures Contractor Source Quality Tests Plans:

Revised 46 61 33 - 11

a. Include step by step instructions, time estimates, and list of required equipment.

F. RSN 46 61 33-5, Final Drawings and Data:

1. Typed and bound operations and maintenance manuals including previously approved information submitted and the following information:

a. Applicable test records or reports.

b. Final drawings.

c. All previously approved submittal data.

G. RSN 46 61 33-6, Storage Plan (if more than 3 months of storage is required):

1. Manufacturer’s instructions for handling and storage.

2. Storage location and environmental conditions.

3. Storage inspection frequency.

H. RSN 46 61 33-7, End of Warranty Inspection Letter:

1. Refer to Article 3.05.

1.05 QUALIFICATIONS

A. Manufacturer:

1. Minimum of three (3) documented full-scale microfiltration or ultrafiltration membrane systems currently operating and manufacturer designed, including startup, commissioning, and training by the manufacturer, at least one (1) of which being three (3) million gallons per day (MGD) or larger.

2. Minimum 5-years’ experience regularly engaged in the business specified herein.

B. Equipment and ancillary components: Designed, supplied, and warranted as unit item by single manufacturer or vendor.

C. Manufacturer’s Installation Representative(s): Minimum 5-years’ experience installing related equipment.

D. Qualifications for Welding Inspectors, Welding Procedures, Welders, and Welding Operators:

1. For pipe and pressure containing components, shall be qualified in accordance with ASME B31.3 and ASME BPVC IX.

2. For carbon steel welds, shall be qualified in accordance with AWS D1.1.

3. For stainless steel welds, shall be qualified in accordance with AWS D1.6.

Pickling and passivation procedure of ASTM A380.

Revised 46 61 33 - 12

1.06 DELIVERY, STORAGE, AND HANDLING

A. In accordance with Section 01 60 00 – Product Requirements and in accordance with the EPA's SmartWay program.

B. Membrane modules and elements shall be stored separately from Membrane Filtration System. Schedule fabrication and delivery of modules and elements based on WTP startup date. Delivery to project site of modules and elements shall be delayed to no earlier than 30-days before startup. Modules or elements will be installed by others.

1.07 SITE CONDITIONS

A. General:

1. Equipment will be installed indoors at water treatment facility located approximately 1-mile north of Leadville, Colorado.

2. Electrical equipment, pumps, motors, and materials shall be sized and derated for the following conditions:

a. Approximate site elevation is 10,000-feet above mean sea level.

b. Equipment furnished under this Section shall be suitable for specified installation location and shall be suitable for continuous (24-hours per day) service.

B. Ambient Conditions:

1. Water temperature is expected to range from 35 to 45 degrees F.

2. Outdoor Air Temperature:

a. Winter: ASHRAE 99.6 percent Value: Minus 8.6 degrees F.

b. Summer: ASHRAE 0.4 percent Value: 74 degrees F.

3. Outdoor Air Relative Humidity:

a. Winter: 3.1 percent.

b. Summer: 74 percent.

4. Indoor Air Temperature: 60 to 95 degrees F.

C. Seismic Loading Criteria:

1. Seismic Design Category B.

2. Site Class D.

3. Risk Category III.

4. Importance Factor, IReR: 1.25.

5. Mechanical Equipment Importance Factor, IRpR: 1.0.

6. Design Spectral Response Acceleration at Short Periods (0.2 seconds), SRsR: 0.307.

Revised 46 61 33 - 13

7. Design Spectral Response Acceleration at 1-second Period, SR1R: 0.076.

8. Approximate height in structure of point of attachment: 0-feet.

9. Approximate average roof height of structure: 55-feet.

D. Area Classification:

1. Work shall conform to requirements described below as well as referenced code requirements:

2. Corrosive Process Areas (NEMA 4X):

a. Areas requiring corrosion resistant, NEMA 4X, construction are indoor corrosive process areas.

b. Typically contain wastewater, chemicals, or sludge pumping or piping systems and are subject to spills and washdown.

c. Include areas containing chemicals.

1.08 WARRANTY

A. Base Warranty: In accordance with contract clause at FAR 52.246-18, Warranty of Supplies of a Complex Nature, provide warranty extending manufacturer’s standard warranty to 608 days after delivery.

B. Warranty Extension 1: Extend the Base Warranty for an additional 365 days.

C. Warranty Extension 2: Extend the Base Warranty plus Warranty Extension 1 period for an additional 365 days.

1.09 EXTRA MATERIALS

A. Spare Parts:

1. Provide new spare parts, refurbished not allowed.

2. Properly packaged for long-term storage.

3. Furnish spare parts interchangeable with and of same materials and workmanship as corresponding original equipment parts.

4. Consistently and clearly mark or tag each part to identify size and type of component for which it is intended.

5. Furnish manufacturer’s recommended spare parts as recommended in manufacturer's instruction manuals for each component of equipment, including the following at minimum:

a. Membrane fiber repair kit and consumables.

6. Submit spare parts data for each supplied component.

Revised 46 61 33 - 14

B. Special Tools: One set of special tools required for assembly and disassembly of equipment required to make equipment complete and ready for operation:

1. Tools of high-grade, forged alloy, tool steel.

2. Industrial grade container for storage of special tools and spare parts. Include in container list of furnished wrenches, tools, and accessories.

1.10 PRETREATMENT PROCESSES

A. The following pretreatment processes will occur upstream of Membrane Filtration System, this is for information only. Pretreatment process is provided by others.

B. Refer to Figure 46 61 33-1 – General Process Diagram at end of this section.

C. Air stripping (for carbonate removal) followed by solids contact clarification for metals removal with addition of sodium hydroxide, sodium permanganate, anionic polymer, and sulfuric acid:

1. Solids contact clarification consists of rapid mixing, flocculation/reaction time, clarification, sludge recycle, and sludge wasting.

2. Primary purpose of sodium hydroxide is to raise pH to approximately 10 to form metal precipitates.

3. Primary purpose of sodium permanganate is oxidation and precipitation of manganese.

4. Primary purpose of anionic polymer is to aid in floc formation and settling. The anionic polymer will be removed by solids contact clarification.

5. Primary purpose of sulfuric acid is to lower pH to approximately 8 prior to membrane filtration to limit scaling.

6. Solids contact clarification processes upstream of Membrane Filtration System will be dosed with the following chemicals:

a. Sodium hydroxide (NaOH): 20 to 80 mg/L as NaOH, dosed up stream of solids contact clarifier rapid mix.

b. Sodium permanganate (NaMnOR4R): 0 to 12 mg/L as NaMnOR4R, dosed in solids contact clarifier contactor reactor.

c. Anionic polymer: 0 to 0.3 mg/L as solution, dosed in solids contact clarifier contact reactor.

d. Sulfuric acid (HR2RSOR4R): 0 to 40 mg/L as HR2RSOR4R, dosed in piping down stream of effluent of solids contact clarifier.

Revised 46 61 33 - 15

PART 2 PRODUCTS

2.01 SYSTEM DESCRIPTION

A. General

1. Refer to Figure 46 61 33-1 – General Process Diagram for location of Membrane Filtration System within WTP.

2. Design, manufacture, and furnish complete Membrane Filtration System with functionality and features as described in this section.

3. Provide skid mounted Membrane Filtration System, minimum three (3) trains, including, but not limited to:

a. Membranes.

b. Membrane skids.

c. Membrane feed pumps.

d. Automated backwash system including pumps.

e. CIP system.

f. Interconnecting piping and valves between trains to be installed by others.

g. Auxiliary equipment for plumbing and power.

h. Instrumentation, controls and interfaces between auxiliary equipment and filters.

4. Membrane Filtration System shall primarily remove total suspended solids and turbidity from water following solids contact clarification treatment.

5. Customer power supply voltages are 480-volt AC, 3-phase, 60 hertz; 208-volt AC, 3-phase, 60 hertz; 120-volt AC, 1-phase, 60 hertz; and 125-volt DC.

a. Contractor to provide equipment or components required to transform or adjust customer power supply voltages to desired equipment voltage. This includes all transformers, power supplies, electrical protection devices, and other components required.

2.02 PERFORMANCE REQUIREMENTS

A. Membrane Filtration System shall meet the following performance requirements:

1. Treated water quality in Table 46 61 33B – Membrane Filtration System Treated Water Quality

2. Design requirements in Table 46 61 33C – Design Requirements.

3. Backwash and CIP capabilities to maintain flux and TMP design requirements in Table 46 61 33C – Design Requirements.

Revised 46 61 33 - 16

4. Backwash and CIP for flux and TMP recovery shall be completed with access to only the following onsite treatment chemicals (storage and feed systems by others):

a. Sulfuric acid: 8 to 15 percent solution.

b. Sodium hydroxide: 6.5 to 10 percent solution.

B. Membrane filtration system components under pressure during normal operations shall be capable of operation at pressures as high as 100 pounds per square inch (psi) except for membrane element.

C. Water Quality:

1. Membrane Filtration System feed water quality range is shown in Table 46 61 33A – Membrane Filtration System Feed Water Quality Range and required treated water quality is shown in Table 46 61 33B – Membrane Filtration System Treated Water Quality.

Table 46 61 33A – Membrane Filtration System Feed Water Quality Range

Parameter Units Value Alkalinity mg/L as calcium carbonate (CaCOR3R)

20 – 50

Total Aluminum mg/L 0.01 – 0.1 Total Calcium mg/L 50 – 90 Total Iron mg/L 0.01 – 0.1 Total Manganese mg/L 0.01 – 0.3 pH su 8.0 – 11.0 Sulfate mg/L 200 – 300 Temperature degrees F 35 – 45 Turbidity NTU 0.1 – 20

Table 46 61 33B – Membrane Filtration System Treated Water Quality

Parameter Units Value Turbidity (95 percent of time) NTU ≤ 0.1 Maximum Turbidity NTU 0.3

2. Membrane Filtration System shall meet design requirements shown in Table 46 61 33C – Membrane Filtration System Design Requirements and as specified herein:

Revised 46 61 33 - 17

Table 46 61 33C – Membrane Filtration System Design Requirements Parameter Value Units

Net Maximum Permeate Production Capacity 2,250 gpm Net Average Permeate Production Capacity 1,750 gpm Net Minimum Permeate Production Capacity 300 gpm Maximum Instantaneous Permeate Flux (under any flow scenario)

45 gallons/square foot/day (gfd)

Permeate Design Flux 30 gfd Minimum Recovery 94 percent Operational TMP (95 percent of the time) < 10 psi Maximum TMP 30 psi Maximum Backwash Frequency 48 BW/module/day Maximum CIP Frequency 2 CIP/train/month Number of Trains

Total ≥3 At Maximum Permeate Production Capacity all duty At Average Permeate Production Capacity all duty

With 1 standby

D. Design Requirements:

1. General:

a. Membrane trains shall be able to operate independently of each other unless generating permeate for backwashing another train.

b. Each membrane train shall have an automatic air pressure test system (compressed air supply system by others) to directly measure integrity of the system membranes, O-rings, and seals through a pressure decay process. Operator shall be able to select frequency of automatic testing and manually initiate a test at any time during operation.

2. Loading Criteria:

a. Design each membrane filtration skid to accommodate all dead, live, and seismic loads as defined by ASCE 7. Assume trains are full of water when determining design loads. Include loading from equipment vibration as well.

b. Membrane filtration system shall be designed to resist forces produced by load combinations as specified in the IBC.

c. Maximum allowable stress in a structural steel member shall not exceed those permitted by AISC 360.

d. All welding shall conform to latest standards of American Welding Society (AWS) and performed by certified welders.

Revised 46 61 33 - 18

3. Rotating Equipment:

a. Rotating and vibrating equipment shall be provided with flexible hose connectors or rubber expansion joints when connecting to fixed piping systems.

b. Vibration dampening or isolation devices shall be installed on all rotating equipment.

4. Piping:

a. Follow industry standards and ASME B31.3 for design, fabrication, installation, inspection and testing of piping systems.

b. Design pressure shall be based on maximum expected operating pressure plus design margin:

1) Design pressure shall be most severe condition of coincidental pressure and temperature expected during service life (including transients, surge, and upset conditions) resulting in greatest required pipe thickness and flange rating.

2) Each component (pumps, valves, pressure vessels, instruments, and other connected equipment) in piping system must have minimum pressure rating greater than design pressure.

c. Perform piping stress/flexibility analysis as required by AISC in accordance with ASME B31.3.

d. Chemical Pipe: Any pipe containing materials classified as corrosive, toxic, water reactive, unstable, flammable, explosive, or combustible per the IFC. Shall meet the following:

1) Chemical piping shall be designed in accordance with IFC.

2) Incompatible chemicals that could cause a hazardous reaction if mixing or cross contamination occurred shall be routed in separate containment carriers.

3) Provide adequate chemical reaction time prior to each treatment process.

4) Threaded connections are not permitted for chemical lines.

5. Valves:

a. Provide isolations valves at equipment to allow removing equipment for service and avoid draining of pipeline.

b. Provide manufactured industry standard valves that allow for lockout/tagout procedures:

1) Where applicable provide lockable device in closed or open position.

c. Provide isolation valves for service and replacements.

Revised 46 61 33 - 19

d. Pressure relief valves shall be provided to prevent over pressurization of piping systems, as required, (except on chemical lines that require containment of hazardous chemicals).

e. Installation of air relief valves or manual air bleed valves, as required, to remove pockets of air from systems, (except on chemical lines that require containment of hazardous chemicals)

f. Locate valves to minimize stagnant fluid.

g. Provide valve list with the minimum following requirements:

1) Working pressures.

2) Pressure classes.

3) Pressure-temperature ratings.

6. Drains and Vents:

a. Provide vent and drain lines as required to drain stagnant fluid from piping systems.

b. Provide drains and blow off valves at low points to flush sediment or drain entire line.

7. Instrumentation:

a. Provide instrumentation for the following functions:

1) Detect abnormal operating conditions in Membrane Filtration System.

2) Protect equipment and facility from damage.

3) Support maintenance activities.

4) Provide sufficient feedback for automated operation of Membrane Filtration System.

b. Locate instrumentation so WTP operation is not impacted by isolating redundant process trains or redundant equipment.

8. Valves, instrumentation and apparatuses to be installed in accessible locations.

9. Appurtenances for complete system in design and installation of piping systems.

Including but not limited to:

a. Markers.

b. Pipe service and flow direction labeling.

c. Pipe supports.

d. Couplings.

e. Injection assemblies.

10. Control System

a. Utilizes local PLC based control panels, with a central panel acting as the primary local operator interface point for the Membrane Filtration System.

Revised 46 61 33 - 20

b. Controls shall include, at a minimum:

1) Controls specified in Section 26 24 20 – Electrical and Control Panels.

2) Controls necessary to implement functions and operation described in these Specifications.

3) Selectable remote and local operation, to change between receiving control signals and setpoint adjustments from the local OIT or from the WTP Control System.

4) Safety and operational interlocks.

5) Control of Contractor supplied components.

6) Start-up and Shut-down control.

a) Includes automated start-up and shut-down sequences for the filtration system.

7) Lead and lag configuration of filter skids that’s operator selectable.

8) VFD control and setpoint adjustment.

9) Feed pump control and set-point adjustment.

10) Manual and automatic operation of systems and components.

11) Operator initiated and automatic operation of the CIP systems.

a) Programming to include specialty CIP cleaning chemicals that can be operator initiated additions and operated automatically after being dosed to the CIP tank.

12) Operator initiated and automatic operation of the backwash systems.

13) Operator initiated and automatic operation of each self-cleaning screen.

14) Operator initiated and automatic air pressure integrity test system, for each membrane train.

15) Automatic shutdown and isolation of a membrane train that has failed and transfer flow to an alternate membrane train upon that failure.

16) Monitor availability for each membrane train and provide the operators with the ability to lock out the entire membrane system, and individual membrane train from the OIT.

17) Monitor backwash status and availability for each membrane train.

18) Monitor runtime for the following minimum components, include manually initiated runtime reset:

a) Each membrane train.

Revised 46 61 33 - 21

b) Each motor.

19) Continuous monitoring system instrumentation and analyzers.

20) CIP system to be programmed to discharge spent CIP solution to two different facility locations for disposal: an adjacent drainage trench and the air stripper treatment process.

a) The air stripper discharge locations includes four options:

Air Strippers Combined Influent, Air Stripper 1 Influent, Air Stripper 2 Influent, and Air Stripper 3 Influent.

i. CIP system to be programmed to track locations and sequentially discharge to Air Stripper 1 Influent, Air Stripper 2 Influent, and Air Stripper 3 Influent to maintain parity of receiving spent CIP solution between locations.

b) CIP pump to have operator input flow rates for discharge of spent CIP solution to different plant locations.

c) Programming to include logic to completely rinse spent CIP from Membrane Filtration System including all piping, tanks, and membrane elements.

d) Programming shall provide for CIP solution to partially permeate membrane elements.

c. Interface to PLC based WTP Control System.

1) Provide in accordance with the requirements in Section 26 24 20 – Electrical and Control Panels.

2) Supports remote operation and critical setpoint adjustment of the Membrane Filtration System controls from the WTP Control System.

3) Interface shall support remote control operation and setpoint changes as well as supporting coordination with connected facility systems to facilitate automated and centralized operation of the facility.

d. Programming required for a fully functional system, including communication with components provided by others in accordance with Section 26 24 20 – Electrical and Control Panels. Necessary programming of components provided by others includes the membrane feed tank level indicator and the valves for the spent CIP locations.

2.03 MEMBRANE FILTRATION SYSTEM COMPONENTS

A. Membrane Trains:

1. Each membrane train shall be skid-mounted and include membrane modules, pumps, manifold piping, valves, flow meters, instruments, gauges, transmitters, Revised 46 61 33 - 22 wiring, conduit, lay-in hinged-cover wireways, and controls for completely automatic system operation.

2. Components of Membrane Filtration System trains shall be constructed of non-corrosive materials or coated with protective coating such as fusion epoxy or equal.

3. Each membrane train shall have extra space available on skid to add membrane modules in future to increase membrane filtration area by at least 10 percent.

4. Dissimilar metals on each membrane skid shall be dielectrically isolated to suppress possible galvanic couples.

5. Membrane Element integrity testing system.

6. Compressed air will be provided by others, maximum of 120 psi and 18 scfm.

7. Membranes:

a. Membrane material shall be polyethersulfone (PES).

b. Membrane flow path shall be inside-to-outside during permeate production and outside-to-inside during backwashing.

c. Membrane nominal average pore size shall be less than 0.1 micrometer.

8. Pre-treatment Screen Filter:

a. Each membrane train shall have self-cleaning screen filter downstream of membrane feed pump before distribution to membrane modules.

b. Nominal mesh size opening shall be less than or equal to 300 micrometers.

c. Headloss across screen filter shall not exceed 1.0 psi when clean, 3.0 psi when fouled.

d. Each screen filter shall be sized for maximum instantaneous flux of membrane train, shown in Table 46 61 33C – Design Requirements, or backwash flow requirements, whichever governs.

e. Each screen filter shall have automatic cleaning systems and controls.

9. Feed Pumps:

a. Provide each membrane train with dedicated, variable frequency drive (VFD) controlled, skid-mounted centrifugal pump to convey feed flow.

b. Feed pumps will be supplied by Membrane Filtration System feed tank (by others), which will have minimum water surface elevation of 2-feet above membrane skid mounting elevation.

c. If applicable, one pump may serve as both feed and backwash pump.

B. Backwash System:

1. Backwash system shall periodically remove filtered solids from membrane surfaces.

Revised 46 61 33 - 23

2. Backwash water may be provided either directly from duty train(s) permeate without an intermediary tank or from WTP clearwell.

3. Backwash system shall include valves, flow meters, instruments, gauges, transmitters, controls, and appurtenances for completely automated system operation.

4. Backwash Pumps:

a. Provide two (2) VFD-controlled, skid-mounted centrifugal pumps, one (1) duty, one (1) standby, to convey backwash flow.

b. Backwash pumps will be supplied from the WTP clearwell, which will be below membrane mounting skid elevation:

1) Backwash pump skids will be installed in a pump pit adjacent to the WTP clearwell. Clearwell minimum water surface elevation will be 18-inches above backwash pump skid mounting elevation.

2) Backwash pump skid(s) will be mounted on equipment pads on same finished floor as adjacent clearwell, which will be 14-feet below process area finished floor on which membrane skids will be mounted on equipment pads.

3) Pumps shall provide adequate discharge head for static water height of 14-feet and pipe length of 50-feet in addition to satisfying backwash requirements.

c. If applicable, feed pump may serve as backwash pump.

C. CIP System:

1. CIP system shall be an integral, automatic system fabricated to maintain design and performance requirements described in Table 46 61 33C – Design Requirements through periodic CIP events, including neutralization and partial neutralization of CIP waste streams.

2. CIP system shall be skid-mounted and include pumps, tanks, valves, tank- or pipe-mounted immersion heaters, flow meters, instruments, gauges, transmitters, controls, and appurtenances for completely automated system operation.

a. CIP tank shall be mounted vertically above the CIP pumps, valves, and associated components to minimize footprint. Access to each CIP tank top shall be by others, currently planned as a grated elevated walkway

22.5 feet above concrete finished floor.

3. Spent CIP solution is configurable to be completely neutralized, partially neutralized, or not neutralized prior to discharge.

4. Spent CIP solution to be completely rinsed from Membrane Filtration System including all piping, tanks, and membrane elements.

5. Spent CIP solution to either be gravity drained or pumped using the CIP pump to different plant locations.

Revised 46 61 33 - 24

6. CIP recirculation pipe and fittings downstream of CIP feed pump discharge to CIP feed tank connection shall be compatible with stock chemicals of 8 to 15 percent sulfuric acid and 6.5 to 10 percent sodium hydroxide solutions provided from plant chemical feed systems (by others).

7. Valves and interlocking logic shall ensure that membrane train during CIP events will be isolated from other membrane trains which shall retain water production and backwash functionality with the concurrent CIP event.

8. CIP system shall incorporate automatic safety features to ensure CIP solutions are adequately rinsed from Membrane Filtration System and will not contact treated water upon resuming normal operation.

9. The following equipment shall be provided as required for CIP system:

a. CIP Tanks:

1) Provide one Batching Tank:

a) The purpose of the Batching Tank is for operators to mix specialty CIP cleaning chemicals independent of regular CIP events.

b) Batching Tank maximum height to be 34-inches to allow for operations staff to dispense alternative chemical cleaning solutions standing on process finished floor.

c) Batching Tank volume not to exceed 55-gallons.

d) Batching Tank shall be configured to induce turbulence via a top mount mixer that imparts sufficient energy to completely mix powdered cleaning chemicals.

e) Batching Tank top mount mixer to be provided with VFD and controls to operate the mixer for an operator-adjustable period of time.

f) Batching Tank shall be configured to fully drain.

g) Batching Tank shall have hinged covered clear PVC access on top to dispense alternative chemical cleaning solutions.

h) Batching tank material shall be cross-linked high density polyethylene or fiberglass reinforced plastic.

i) Batching Tank shall have PVC spray nozzle that uses WTP service water (by others) providing complete tank rinse and dilution water for batching.

j) Batching Tank shall have manual valves for discharging contents to either CIP tank.

k) Batching Tank drain to be directly connected to eductor capable of discharging Batching Tank contents to CIP tank:

i. Eductor to be supplied service water by others.

Revised 46 61 33 - 25

2) Provide two CIP feed tanks for heating, mixing, recirculating, and neutralizing CIP feed solution:

a) One duty tank, one standby tank.

b) Redundant CIP feed pumps shall be provided.

c) Both CIP tanks to include actuated valves to automatically cycle CIP to either tank using either CIP feed pump.

d) Each CIP tank shall be configured with the capability to neutralize or partially neutralize…