W9123824Q0064 A0002.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purpose of this amendment is to:

1. Add additional clauses

2. Replace the Statement of Work in its entirety

3. Extend the quote due date

4. Add source selection factors

5. Add questions and answ ers

No other changes made or implied.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 36

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

16C. DATE SIGNED

BY 20-Nov-2024

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

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

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W9123824Q0064

X 9B. DATED (SEE ITEM 11)

28-Aug-2024

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.

Offer 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 Items 8 and 15, and returning 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 telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT 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 telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

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

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

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

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

27-Nov-2024

CODE

US ARMY CORPS OF ENGINEERS, SACRAMENTO

CONTRACTING DIVISION

1325 J STREET

SACRAMENTO CA 95814-2922

W91238 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W9123824Q0064

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 1449 - CONTINUATION SHEET

SOLICITATION/CONTRACT FORM

The standard size code has changed from 200 to 550.

The required response date/time has changed from 10-Oct-2024 11:00 AM to 12-Dec-2024 11:00 AM.

SUPPLIES OR SERVICES AND PRICES

CLIN 0001

The NAICS code 339999 has been added.

The following have been added by reference:

52.225-1 Buy American--Supplies OCT 2022 52.225-2 Buy American Certificate OCT 2022 252.225-7021 Trade Agreements--Basic FEB 2024

The following have been added by full text:

Q&A

4. The statement of work, general section, on page 55 of the document references an Appendix G where a typical system technical specification and project manual is located. Please provide the referenced attachment. This document typically comes from the consulting firm, which we believe was GEI in this case. The section is typically called SECTION 11300. Without this section there is not enough information to quote the IX System and IX Resin.

A.4 Appendix G reference was removed from the solicitation per Amendment 0001. The contractors are to quote with their IX system and IX Resin to meet the requirements of the solicitation.

5. Many of the questions below can be answered by adding the technical specification for the IX Resin system and resin. However, in case the additional documents received are missing potentially important information, we have laid out each question below. The recommendations tailored to the questions are what can be seen as standard for the industry for drinking water.

A. Design flow rate of the system B. pressure rating, the standard is 125 psi C. Empty bed contact time per vessel or resin volume per vessel D. Is the design supposed to be an external ring header mechanical design E. Confirm the lining should be either Plasite 4110 or Sherplate PW.

F. What lining should be used for manifold piping? Should it be carbon steel with FBE lining?

G. Are there any external coating requirements to follow?

H. Should all internals be 316 SS?

I. Should all wetted parts be NSF-61 certified or constructed of NSF-61 approved materials for drinking water?

J. Are there any flowmeters or different pressure transmitters required. If so, please provide make and models.

K. Please confirm whether two manways are required. A top manway 14x18” and a 24” side manway.

L. Please confirm there should be an air relief line, washdown line, and slurry lines on the vessel.

M. Please provide the seismic information for the design, as well as the class and importance factor. Typical in California they are Class D and importance factor 1.5

A.5 A. Design flow rate of the system of at least one million gallons per day design flow each. See section 1.04 A.1.

B. Working pressure of not less than 125 psi. See section 1.05 K.

C. Empty bed contact time (EBCT) of 2.4 minutes and minimum flow rate of 1100 gpm. See section 1.02B.

D. External header. See section 2.03 F.

E. Yes either, see section 2.04 A.

F. Interior lining shall be certified to NSF/ANSI Standard 61 for direct potable water contact. See section 2.04 A.

G. Yes. See section 2.09 Painting and Coating H. All underdrain material internal to the adsorber vessel or in contact with media (including septa) shall be 316L stainless steel. See section 2.03 F.2.f.

I. Yes. See section 1.06 A.3.

J. Yes see Part 2 Materials.

K. Yes. See section 2.03 C.

L. Yes. See section 2.08.

M. Seismic. See section 1.05.

6. Are drawings and P&IDs available of the proposed treatment system? Please attach to this RFP. Without these documents a vendor once again cannot quote what is needed for the project.

A6. See section 3.10 OWNER CONNECTION PIPING TO VESSELS

7. Independent magnetic flow meters for each vessel are required per the statement of work (General section under Equipment descriptions). Please confirm what specifications are required for these flow meters.

A.7 See SOW dated for all requirements.

8. Box 10 of the SF 1449 identifies a size standard of 200, but does not provide a NAICS code. Please confirm that bids will be deemed eligible for award based on a size standard of 200 employees without consideration of NAICS code or advise on the appropriate NAICS code.

A.8 The NAICS code has been added as 339999, and the size standard has been corrected to 550 employees. See Classification Details in solicitation post on SAM.gov, which shows the new NAICS and other information. Quotes will be deemed eligible for award under this 100% Small Business Set-aside based on a small business size standard 550 employees.

9. Are there any purchasing requirements such as AIS, BABA, Buy American, etc?

A.9 Buy American does apply. See the Clauses 52.225-1 and 52.225-2 as well as DFARS Clause 252-225-7021 were not included in this solicitation. They have been added via Amendment 0002.

10. Please provide a schedule for the project and the expected delivery of equipment.

A.10 Equipment needs to be delivered within 200 days from the day of the award. See the original Solicitation “Delivery Information” where it states Delivery Date “200 dys. ADC”.

11. Please provide the site address for consideration.

A.11 No specific address is available yet. The system will be installed in city of Orangevale, water well number three (3).

12. What IX Media is to be provided or what the IX Media is targeting for removal. Do you have a specification for the IX Media?

A.12 See section 2.10 Ion Exchange Resins.

SOW

STAMENT OF WORK (SOW)

ION EXCHANGE RESIN (IX) VESSEL SYSTEMS

NOVEMBER 20, 2024

PART 1 GENERAL

1.01 DESCRIPTION

A. This SOW describes materials, fabrication, coating, initial load of virgin media, testing, delivery of complete pre-engineered ion exchange resin adsorption vessel systems (IX systems) described herein for the removal of Perchlorate from groundwater.

B. This SOW describes the supply and manufacturer of the treatment system. The term “Supplier” or “manufacturer” is used interchangeably and shall mean the same person (s).

C. The Government represented by the US Army Corps of Engineers (USACE) Sacramento District (SPK) is the contractual authority for the supply buy, USACE will designate a Contracting Officer’s Representative (COR) who will be the primary point of contact for this contract.

D. Ownership of the vessel system shall transfer from USACE SPK to the OVWC upon satisfactory delivery of the IX System to OVWC well site #3 and its acceptance by

USACE.

1.02 WORK TO BE INCLUDED

A. The IX system supplier shall be responsible for design, fabrication, assembly, and delivery of the complete IX systems including all mechanical components, vessels, inter-vessel manifold piping, and instrumentation described in this SOW.

B. Supplier shall provide the initial load of 420 cubic feet (minimum vessel volume, Note:

value based on empty bed contact time (EBCT) of 2.4 minutes and minimum flow rate of 1100 gpm) of virgin ion exchange resin (media) including installation into the resin vessels.

C. The IX system shall comprise the following basic components:

1. Two downflow adsorber vessels interconnected with manifold piping that allows for either series or parallel flow operation of the vessels.

2. Interior lining and exterior prime and finish coating of the vessels.

3. Process and utility piping, valves, and accessories integral to operation of the two-vessel system.

4. Independent Media fill and discharge piping with flush nozzles.

5. Vent and pressure relief piping.

6. Pneumatic connections for media transfers.

7. Nozzles required for chemical disinfection of the media.

8. Pressure gauges.

9. Sample ports.

10. Spray nozzle for media vessel washdown.

11. Seismic design of the vessel and manifold supports including definition of vessel anchorage requirements.

12. Technical submittals and operation and maintenance manuals as described herein.

13. Third Party coating and lining inspection & certification at the supplier’s expense.

D. The following work will shall be performed by the Supplier as part of this contract.

1. Fabrication and delivery of the treatment system.

2. Supply and delivery of the ion exchange resin.

3. The supplier shall deliver the completed system within the contractual period of performance (POP).

4. Delivery of Operation and Maintenance Manuals.

1.03 SUBMITTALS

A. Provide vessel specifications including design pressure, dimensions, capacity, underdrain, and upper distributor configuration.

B. Provide IX Supplier’s qualifications per paragraph 1.04 below.

C. Provide IX system process flow diagrams showing all valves, components, and instrumentation.

D. Provide IX system general arrangement drawing showing dimensions, weights, and elevations and all nozzle locations. Label all valves, sample taps, and lines.

E. Provide pressure drop information between influent and effluent manifold nozzles

(without media) as designed for this project.

F. Exterior finish coating color charts.

G. Shop Drawings

1. Catalog cuts for purchased components and details for manufactured components. Identify materials, surface preparation, and finishes. Include calculations of wall thickness for adsorber vessel.

2. Structural and seismic calculations for adsorber vessels, piping, manifold supports, and appurtenances. Include calculations for reactions at anchor bolts and selection of the size and number of bolts required. Calculations shall be prepared by a Civil or Structural Engineer licensed in the state of California.

3. Shop inspection procedure and schedule.

4. Plan and elevation AutoCAD .DWG or .DXF files.

5. Minimum foot print of the concrete foundation will be provided for the supplier, including locations of pipe and/or conduit penetrations in the foundation. The foot print shall include a 3 feet clearance from any foundation, piping or vessel.

H. Test Reports - The following test reports shall be provided:

1. Pressure test reports and certificates of inspection for each vessel in accordance with procedures for ASME pressure rating and ASME Boiler and Pressure Vessel Code. Reports shall be furnished not later than the time of delivery of the vessels.

2. Third Party and factory test and inspection reports regarding all factory-applied linings and coatings for adsorber vessels and piping. Reports shall indicate that the linings and coatings have been applied in accordance with these specifications on surfaces receiving the specified preparation.

Records of film thickness and holiday testing shall be included. Reports shall be furnished no later than the time of delivery of the vessels.

I. Supplier's Installation Instructions - Prior to shipment of systems, Supplier shall submit:

1. Photos of the systems fully assembled in the shop before disassembly for shipment.

2. Instructions for the field personnel on handling and installation of the systems.

J. Ion Exchange Resin Media

1. The supplier shall submit the following to the USACE COR for Acceptance within 30 calendar days of notice-of-award:

a. Resin modeling of bed volumes treated before breakthrough. The existing water quality sampling test reports are presented at the end of this SOW.

b. IX resin literature including product specifications, recommended applications, material from which resin is derived, manufacturing process, temperature-specific downflow head loss charts covering the specified operating conditions, and installation requirements.

c. Resin analysis certification:

1) IX resin:

a) Include the following information: type of resin, effective size, density, and resin manufacturing location.

d. Recommended health and safety plan for personnel involved in handling resin.

e. A copy of the IX resin ANSI/NSF/CAN 61 certification.

f. Proof of IX resin pre-conditioning prior to delivery to the site. Pre-conditioning shall meet each resin’s ANSI/NSF/CAN 61 certification requirements, as specified by the certification laboratory.

g. Manufacture date of IX resin.

h. Delivery date of IX resin.

2. Supplier shall submit a detailed acceptance testing and installation plan.

The detailed plan shall at a minimum meet all intents and purposes of the acceptance testing, coordinate delivery with the COR’s acceptance of bacteriological acceptance of the pressure vessels, meet IX resin manufacturer/supplier installation requirements, and satisfy distribution system integration requirements. The plan must be accepted by COR prior to resin shipment to project site. The detailed plan shall include a detailed description of:

a. Testing conditions.

b. Methods to achieve testing conditions.

c. Methods to analyze and measure required parameters.

d. Required equipment and material.

e. Required controls.

f. Test sequence, including all steps required for a successful test to proceed from initiation to completion.

g. Data recording and reporting procedures.

h. Test duration and schedule.

i. Volume of wastewater that will be generated.

j. Wastewater disposal plan.

k. Installation procedures.

l. Responsibilities of supplier and IX resin manufacturer/supplier.

3. IX resin manufacturer/supplier shall submit a list of the facilities and references meeting the requirements as specified in this SOW, including the following minimum information:

a. Utility and facility name and location.

b. Year of start-up.

c. Installation type (e.g., municipal drinking water, industrial).

d. Design flow.

e. Quantity of IX resin installed.

f. System operator name and contact information.

4. Operation and maintenance manual:

a. Provide four (4) original O&M manuals of the pump station, associated piping and treatment system as one (1) electronic copy (in pdf) to the COR prior to substantial completion of the project.

All O&M manuals shall be provided in a three-ring binder, with tabs and an index describing the contents of the binder. One binder containing the O&M manual for each piece of equipment shall be furnished and be included in a separate binder. All O&M manual copies whose original pages are color shall be provided in color.

The binder cover sheet shall include at a minimum: (1) the name of the project; (2) the contents of the binder; (3) the District’s name;

(4) the date; and (5) the volume number (i.e. Vol 1 of 2 etc.). One hardcopy of the O&M manual shall be provided to the COR and District for review prior to reproducing all four sets. Once the sample copy has been approved, the Supplier may proceed with preparing the four original sets.

b. Operation and maintenance instructions shall include, at a minimum, the below listed data for each item of mechanical, electrical, and instrumentation equipment. All equipment manufacturers shall be made aware of these requirements and all associated costs shall be included in the costs for furnishing the equipment or system.

c. All information provided as part of the Shop Drawings.

d. All information required as part of equipment Specification SOW.

e. Manufacturer’s O&M manual customized for equipment provided.

Cross out equipment not provided.

f. Bill of material listing every component of equipment listed by make and part number. An insufficient bill of materials shall result in O&M manual submittal rejection.

g. An itemized list of all data provided.

h. Name and location of the manufacturer, the manufacturer's local representative, the nearest supplier, and spare parts warehouse.

i. Equipment function, normal operating characteristics, and limiting conditions.

j. Recommended maintenance procedures during storage of equipment prior to installation and after installation but prior to start-up.

k. Recommended installation, adjustment, start-up, calibration, and troubleshooting procedures.

l. Recommended lubrication, lubrication intervals, and an estimate of yearly quantity needed.

m. Recommended step-by-step procedures for all modes of operation.

Operating instructions for startup, routine and normal operation, regulation and control, shutdown, and emergency conditions.

Instructions shall include keystrokes and procedures required for adjusting control setpoints for equipment operation.

n. Complete internal and connection wiring diagrams of actual installation.

o. Equipment maintenance.

p. Test data and performance curves, where applicable.

q. Recommended preventive maintenance procedures and schedule.

r. Complete parts lists (bill of materials), by generic title and identification number (part number), with exploded views of each assembly.

s. Every component shall be listed on the bill of material with its corresponding part number.

t. A recommended spare parts list shall include generic title and identification numbers (part numbers).

u. Recommended spare parts and any special tools required.

v. Disassembly, overhaul, and reassembly instructions.

w. Factory and field test results (if applicable).

x. Manufacturer’s contact information and local certified service representative’s contact information.

y. Following completion of an item, instructions and procedures shall be modified to reflect field changes. In addition, the O&M manuals shall contain reproducible prints of the Contract record wiring diagrams, schematics, and installation drawings required.

Information not applicable to equipment installed in the Work shall be excluded.

z. Individual O&M manuals shall be broken into sections and indexed. Under each section there shall be a description of the operation and maintenance, and installation instructions of each item. Sections shall be labeled and each item shall be sub-labeled.

No acceptance of equipment will be made until the individual O&M manual has been approved. Copies of each individual O&M manual shall be available at the site of the Work for use by field personnel and the COR during start-up and testing of the equipment.

1.04 REQUIRED QUALIFICATIONS FOR MEDIA SUPPLIER

A. IX Resin Manufacturer/Supplier's Qualifications:

1. IX resin manufacturer/supplier must demonstrate experience supplying IX resin for a minimum of three potable groundwater treatment facilities, targeting perchlorate compounds, of at least one million gallons per day design flow each.

1.05 DESIGN CRITERIA

A. Seismic – The IX resin systems shall be designed to meet current California Building

Code seismic requirements.

B. Anchorage: Design the IX resin systems and the associated supports and anchor bolts to support the equipment per CBC, Section 1613 and ASCE 7-16, Chapters 13 and 15 C. Seismic design criteria for Project Site: Seismic design criteria shall conform to CBC

2022 and ASCE 7-16. (Note: Values below are particular to a specific facility and site location and shall be changed as necessary; ensure seismic information is included in the specification/project documents)

1. Occupancy Category: II.

2. Importance Factor: 1.5.

3. Seismic Design Category D.

4. Ss: 0.425

5. S1: 0.216

6. SDS: 0.414

7. SD1: 0.312

8. SMS: 0.621

9. SM1: 0.468

10. Fa: 1.46

11. Fv: 2.168

D. Wind Design shall conform to the CBC 2022 and ASCE 7-16: (Note: Values below are particular to a specific facility and site location and shall be changed as necessary)

1. Risk Category: II

2. Wind Velocity: 95 mph

3. I: 1.0

4. Kd: 0.95

5. Exposure Category: C

6. Kzt: 1.0

7. G: 0.85

8. Kz: 0.85

9. Kh: 0.85

10. qz: 16.7 psf

E. Hydraulic Capacity - The IX resin system shall be designed for a nominal flow rate of 1,100 gpm per vessel.

F. IX Resin Capacity - Each adsorber vessel shall be designed to hold and operate with 420 cubic feet of IX Resin. Where this specification makes reference to a full load of IX resin it shall be understood to mean a minimum of 420 cubic feet. The Supplier shall confirm the vessel capacity based on the recent water quality test results provided by the COR.

G. Each adsorber vessel shall allow for 25 percent minimum expansion.

H. Pressure Drop – Total pressure drop across the two vessels in series shall be limited to 5 psig (without resin) at a flow rate of 1,100 gpm.

I. System Size - Adsorber vessel outside diameter shall be 12’ nominal. The overall height shall not exceed 15 feet from the bottom of the support structure to the uppermost portion of the vessel and piping.

J. Adsorber Vessel Support – Each adsorber vessel shall include four support legs coped to the bottom head. The manifold piping valve tree shall include an independent support stand

K. System Design and Operating Pressure - Adsorber vessels, piping, valves, and appurtenances subject to internal pressure during normal operation, or IX resin filling or removal shall be designed, rated, and constructed for a working pressure of not less than 125 psig at 65 degrees Celsius (150 degrees Fahrenheit). Normal operating pressure on the inlet connection to the system is expected to be between 70 and 90 psig.

L. System Design Orientation - The pair of adsorber vessels shall be aligned along a common centerline. The orientation of vessel appurtenances shall be as shown on the drawings. The maximum overall length from the outside of the first vessel to the outside of the last vessel shall be as shown in the drawings. The IX system influent, effluent and backwash out valve tree nozzles shall be oriented as required to accommodate the site yard piping at each of the well sites.

M. Existing Water quality –The test results are presented at the end of this SOW.

1.06 REGULATORY REQUIREMENTS

A. The Supplier shall comply with all applicable regulatory requirements including, but not limited to, the following:

1. Occupational safety and health requirements of OSHA and Cal-OSHA.

2. U.S. Department of Transportation requirements for transportation of the

Resin systems.

3. ANSI/NSF-61 certification of all components and coatings in contact with the potable water.

4. California lead-free requirements (AB 1953)

B. The Supplier shall obtain all necessary permits related to the manufacture, coating and delivery of the system at their own expense.

1.07 MODES OF OPERATION

A. IX Resin Adsorption: The media systems shall be designed to allow operation in parallel or series and for the lead/lag order of the vessels to be reversed.

B. IX Resin Removal and Replacement: The IX resin system shall be designed and constructed to allow each adsorber vessel to be isolated from the other vessel for removal of spent media while one vessel remains in operation. Removal shall be accomplished by pressurizing the vessel with compressed air to displace the spent media into an empty shipping container or trailer. The bottom of the adsorber vessel and media slurry piping shall be designed to allow complete removal of spent media from the adsorber vessel and piping.

PART 2 MATERIALS

2.01 SUPPLIERS

A. The systems shall be supplied as a complete and integrated package.

2.02 SYSTEM COMPONENTS

A. The systems shall be shipped to the job site in the least number of pieces permissible for transportation. All utility piping must be shipped assembled to vessel. Consideration must be given to road transport conditions when securing load.

B. All systems must be preassembled in the manufacturing facility. Documentation such as photo evidence must supplied before shipment, as well as built drawings for the on-site assembly.

2.03 ADSORBER VESSELS

A. Adsorber vessels shall be vertical, cylindrical pressure vessels and 2:1 elliptical top and bottom heads. Straight side lengths shall be sufficient to allow for expansion of the media during backwash for future use. Vessel bottoms and appurtenances shall be designed for complete removal of spent media and even distribution of treated water. Vessels shall be designed, constructed, tested, certified, and stamped in accordance with the most recent revision of the ASME Boiler and Pressure Vessel Code, Section VIII. The vessel shell shall be constructed of SA-516 Grade 70 pressure vessel quality carbon steel plate.

Vessels shall be provided with all necessary supports, baffles, and accessories required to support and contain the media.

B. The vessels, system piping, and all other shop assembled appurtenances of the system shall be reinforced and supported with structural members as required such that the assembled components can be transported and off-loaded without distortion. The components shall be provided with lifting lugs to enable setting the equipment on a concrete foundation with a suitable capacity crane. System supports shall be designed and drilled for installation and anchoring to a concrete slab. Structural components shall conform to ASTM A 36 specifications.

C. Vessel Access: A minimum of two accessways shall be provided on each vessel. One accessway on the top head shall be 14-inch by 18-inch minimum elliptical, equipped with a stainless-steel chain to prevent the cover from falling. The second manway shall be located on the side shell near the bottom but above the underdrain system. The manway shall be a minimum of 24 inches in diameter, circular. The manways shall be sized to accommodate the repair and/or removal of the largest single internal component.

Removable davits or hinge system shall be provided to support the 24-inch manway cover when opened or removed from the vessel.

D. Vessel Nozzles: Each vessel shall be provided with a minimum of the following nozzles:

1. Minimum 10-inch-diameter raw water inlet.

2. Minimum 10-inch-diameter treated water outlet.

3. Minimum 4-inch-diameter inlet for loading IX Resin.

4. Minimum 4-inch-diameter outlet for removing spent IX Resin.

5. A 2-inch-diameter potable water connection above the media bed with spray nozzle for media wash-down during exchange. A device to prevent backflow shall be provided.

6. Three 2-inch-diameter sample taps through the vessel shell for intermediate bed sampling.

7. A combination air and vacuum release valve installed at the high point of the vessel.

8. A pressure-relief valve to prevent the vessel from exceeding maximum operational pressure.

9. Pneumatic connections for media loading and unloading.

10. Nozzles in the underdrain and media fill line suitable for use during caustic/acid disinfection of loaded media for future use.

E. Sample Taps: Three intermediate bed sample taps shall be provided along the vertical shell of each adsorber vessel. Taps shall consist of 2-inch flanged nozzles with 3/4-inch diameter Type 316L stainless-steel probes extending 1 foot inside the vessels. At the end of the probes shall be 4 inches of Type 316L stainless steel wound 0.01-inch opening well screens or slots designed to allow withdrawal of water and retainage of media. The probes shall be removable from outside the vessel. In each vessel there shall be three taps located at 25, 50, and 75 percent of the resin bed depth. Sample outlets, without probes, shall be located in the inlet and outlet piping of each vessel.

F. Underdrain System

1. The underdrain shall be of the external header / septa type or Header-

Lateral. Internal cone underdrains will not be accepted.

2. The underdrain system shall provide the following performance, design, and materials criteria:

a. A design flow rate of 1,100 gpm per vessel in normal operating mode.

b. The minimum screened area of the underdrain shall be 7.85 ft2.

c. All stainless-steel threaded connections shall be made with teflon tape to facilitate future removal.

d. Design shall facilitate media change-out.

e. Underdrain designs utilizing plastic or FRP pipe, plastic distributors, sand, gravel, and concrete will not be accepted.

f. All underdrain material internal to the adsorber vessel or in contact with media (including septa) shall be 316L stainless steel.

g. Underdrains shall be designed to withstand the weight of the media bed in a flooded state.

h. External header shall be 8-inch carbon steel Sch 40 pipe and fittings.

i. Eight externally removable vertical septa’s shall be equally spaced in the bottom head of the IX resin vessel.

3. Upper Distributor: The upper distributor shall meet the following criteria:

a. The upper distributor shall be a 4-point for IX resin to prevent bed movement.

b. All upper distributor material internal to the adsorber vessel shall be 316L stainless steel.

c. The distribution point(s) shall be located near, but not closer than 3 inches to the upper head.

d. All support structures shall be fabricated of 316L stainless steel, use bolting rather than "band-it" banding, and shall support the weight of any additional attached internal fixture such as the spray nozzle.

2.04 LINING

A. The interior of the vessel and all interior carbon steel internals shall be properly coated with: Plasite 4110 to a minimum/maximum dry film thickness of 35/45 mils respectively and per Plasite Bulletins PA-3 and PA-4,000 and instructions; or Enviroline 230 NSF to a minimum/maximum dry film thickness of 35/45 mils respectively and per Industrial Environmental Coatings Corporation guidelines and instructions; or an approved equal.

Interior lining shall be certified to NSF/ANSI Standard 61 for direct potable water contact.

B. The surface preparation (after grinding all welds and sharp edges smooth/radiused), and lining application including testing shall be certified by an independent third-party Inspector selected and paid for by the Supplier.

C. Surface Preparation:

1. Degrease surfaces prior to sandblasting to completely remove dirt, grease, oil, etc.

2. Sandblast to SSPC-SP5 White Metal using a venturi blast nozzle at 100 psi minimum.

3. The degree of blast profile shall be a minimum of 4 mils.

4. Remove all traces of grit and dust and imbedded abrasives with a vacuum cleaner.

5. Third Party Testing shall be performed to confirm the blast profile and paid by the Supplier.

D. Lining inspection shall include:

1. General Appearance: film shall be free of defects such as, but not limited to, runs, sags, orange peel, pin holing, fish-eyes, over-spray, trash in the film and voids.

2. Film thickness shall be determined using a Micro test thickness gauge as manufactured by KTA-Tater, Inc. or functionally equivalent non-destructive day film thickness gauge for use on protective coatings with an accuracy of ±5%, and which has been properly calibrated. This must be done as Third Part Testing.

3. Discontinuity void testing shall be performed using a voltage detector

Midel AP-W as manufactured by Tinker and Rasor (San Gabriel, CA).

Void testing shall only be performed after all interior manifold piping and other internal equipment has been completely installed by Third Party Testing.

4. The Supplier shall pay for all of the above coating testing and any required re-testing of the lining prior to shipment.

5. Detailed requirements for lining inspection shall be as further described in Carboline Bulletin PA-3.

E. Additional void testing may be conducted at the project site after delivery. Any voids or cracks found will be repaired and retested by the Supplier, at their expense.

2.05 PROCESS AND UTILITY PIPING

A. General

1. All pipe which will operate under pressure shall be properly tied or blocked, restrained, and supported at all fittings where the pipe changes direction, changes size, or ends, using suitable anchors. Exposed pipe shall be installed in straight runs parallel to the axis of the structures or equipment. Pipe runs shall be horizontal and vertical except that gravity drain lines shall be pitched down in the direction of flow not less than 1/8 inch per foot.

2. Piping shall be made up with a sufficient number of unions, flanged joints, grooved end joints, or flexible couplings to permit ready breaking of lines as necessary for inspection and maintenance and to allow for expansion and contraction and general flexibility.

3. Pipe and fittings shall be assembled so there will be no distortion or springing of the pipelines. Flanges, unions, flexible couplings, and other connections shall come together at the proper orientation. The fit shall not be made by springing any piping nor shall orientation or alignment be corrected by taking up on any flange bolts. Flange bolts, union halves, flexible connectors, etc., shall slip freely into place. If the proper fit is not obtained, the piping shall be altered to fit.

4. Piping shall be designed for a maximum liquid velocity of 6.5 fps unless otherwise noted. Supplier shall submit calculations to verify that requirements for maximum head loss and velocity are met with the proposed piping design. Noise generation shall be a consideration in the selection of size for pipe and valves.

a. Exceptions to the maximum velocity requirement may be permitted on relatively short piping runs where the treated water line can serve as the backwash inlet and where the raw water line serves as the backwash outlet.

5. Pipe shall be fusion-bonded epoxy lined or liquid epoxy lined as described below unless otherwise indicated in this specification. The coating material shall be compliant with ANSI/NSF-61.

a. For fusion epoxy-lined steel pipe, the coating material shall be a

100 percent powder epoxy applied in accordance with ANSI/AWWA C213. The coating shall be applied using the fluidized bed or electrostatic spray process. Coating DFT = 16 mils, Scotchkote 134 (electrostatic) or 206N (fluidized bed), or equal, applied in one coat.

b. For liquid epoxy-lined steel pipe, the coating material shall be liquid epoxy applied in accordance with ANSI/AWWA C210. The coating system shall consist of one coat of a two-part chemically cured inhibitive epoxy primer, and one or more coats of a two-part chemically cured epoxy finish coat for a total DFT = 16 mil.

TNEMEC Epoxoline Series 141, Carboline Carboguard 891, or equal.

6. Apply topcoat to exterior of fusion epoxy-lined steel pipe to match color of vessel. Coating shall be in accordance with same requirements for the vessel.

B. Piping 4 Inches and Smaller

1. Unless otherwise specified, piping shall be Schedule 40 black carbon steel conforming to ASTM A 53, Grade B, Type E or S, or ASTM A 135.

2. Fittings shall be flanged, screwed, or grooved end.

C. Piping Larger Than 4 Inches

1. Unless otherwise specified, piping shall be Schedule 40 black carbon steel conforming to ASTM A 53, Grade B, Type E or S.

2. Fittings shall be flanged or grooved end.

D. Air Piping 2 Inches and Smaller

1. Unless otherwise specified, piping shall be hot dip galvanized.

2. Fittings shall be screwed.

E. IX Resin Exchange piping shall be 4 inches in diameter and constructed of one of the following:

1. Piping shall be Schedule 10 316L stainless-steel pipe conforming to ASTM A 312 with 316 fittings.

2. Fusion bonded epoxy lined and coated schedule 40 carbon steel conforming to ASTM A 53, Grade B, Type E or S.

F. Vessel influent and media fill piping shall be side or top entry provided that the overall vessel height requirement is met.

G. Sample Port Piping

1. 316 stainless steel, ¼” minimum diameter

2. Fittings shall be flanged, screwed, or grooved end.

2.06 FITTINGS

A. Flanges and flanged fittings shall conform to ANSI B16.5.

1. All fasteners shall include washers under both bolt head and nut.

2. Bolts, nuts and washers for joining hardware and flanges constructed of materials other than stainless steel shall be carbon steel conforming to ASTM A307, Grade B with ASTM A563A nuts and ASTM F436 washers.

Hardware shall be hot dip galvanized in accordance with ASTM F2329.

3. Fasteners for joining stainless steel hardware and flanges shall be Type 304 or 316 stainless steel per ASTM A320 or ASTM A193; nuts shall be 304 or 316 stainless steel per ASTM A194 and washers shall be ASTM F436 Type 3.

4. Gaskets shall be full face or ring-type, 1/16- to 1/8-inch thick for piping shall be non asbestos materials, suitable for a pressure of 200 psi, conforming to NSF 61.

a. Cloth-inserted rubber. Products: Manville 109, John Crane Co.

Style 777, or equal. Gaskets shall be suitable for a pressure of 350 psi at a temperature of 82°C (180°F).

b. Acrylic or aramid fiber bound with nitrile. Products: Garlock "Bluegard," Klinger "Klingersil C4400," or equal. Gaskets shall be suitable for a water pressure of 500 psi at a temperature of 204°C (400°F).

c. EPDM/EPT elastomer gasket material in accordance with ASTM D 2000, SAE J-200, BA-CA-DA. Gaskets shall be suitable for a pressure of 350 psi at a temperature of 82°C (180°F).

5. Flanges at site piping interface connection points shall be AWWA C207, Class D, flat face flanges or ASME B16.5 Class 150 flanges instead of AWWA C207, Class D flanges

B. Threaded fittings shall be Class 300, malleable iron conforming to ANSI B16.3 or forged steel fittings conforming to ANSI 16.11.

C. Grooved-end couplings shall be flexible type, square cut groove, per AWWA C606.

Couplings shall be Victaulic Style 77, Gustin-Bacon Figure 100 or equal. Grooved end coupling shall not be used within the adsorber vessels. Bolts and nuts shall be Type 316 stainless steel.

D. Butt-welded steel fittings shall be carbon steel pipe of the same wall thickness as adjoining pipes conforming to ASTM 234 WPB and ANSI B16.9. Welds shall be in conformance with AWWA C206.

2.07 PROCESS VALVES

A. General

1. The Supplier shall furnish all valves as called for in these specifications, or as required for proper operation of the equipment in general.

2. Wherever stainless steel is specified in this SOW, it shall be Type 316 or Type 304 unless otherwise specified. Where dissimilar metals are being bolted, stainless-steel bolts shall be used.

3. The Supplier shall furnish all incidental materials necessary for installation of the valves such as flange gaskets, flange bolts, nuts and washers, and all other materials required for the complete installation.

B. Butterfly Valves

1. Butterfly valves shall be one-piece wafer type or short body, flanged type, conforming to AWWA C504, Class 150B. Minimum working differential pressure across the valve disc shall be 150 psi. Flanged ends shall be Class 125, ANSI B16.1. Valve shafts shall be Type 304 or 316 stainless steel journals and static seals. Valve shafts shall be stub shaft or one-piece units extending completely through the valve disc. Materials of construction shall be as follows:

Component Material Specification Component Material Specification

Body Cast iron or ductile iron

ASTM A 48, Class 40;

ASTM A 126, Class B; or ASTM A 536, Grade 65-45-

Exposed body cap screws and bolts and nuts

Stainless steel ASTM A 276, Type 304 or

Discs Cast iron or ductile iron or Ni-Resist

ASTM A 48, Class 40;

ASTM A 536, Grade 65-45- 12; ASTM A 436, Type 1; or ASTM A 126, Class B

Disc fasteners, seat retention and segments, and seat fastening devices

Stainless steel ASTM A 276, Type 304 or

Seat material Buna-N --

2. Where the rubber seat is applied to the disc, it shall be vulcanized to a stainless-steel seat retaining ring which is clamped to the disc by Type 304 or 316 stainless-steel screw fasteners. The valve seat shall be secured to or retained in the valve body.

3. Valves shall be Pratt, DeZurik, Bray, or equal.

C. Ball Valves

1. Valves in media exchange piping and sample probe lines shall be full-bore stainless steel. Bodies, balls, and stems shall be Type 304 or 316 stainless steel. Seats shall be R-PTFE, and stem seals shall be R-PTFE or Viton.

2. Valves for carbon steel piping, including flush connections, pressure gauges, and compressed air connections shall meet the following requirements unless otherwise noted in this SOW. Valves shall be stainless steel, bronze, forged brass, or bar stock brass body rated for 500 psi at 38°C (100°F). Seats and seals shall be Teflon.

D. Check Valves: Check valves 2.5 inches and smaller shall be Class 200, wye pattern, bronze body, swing check valves with screw ends. Valves shall be Crane, Kennedy, Milwaukee, or equal.

E. Combination Air Valves: Valves shall have an operating pressure of 200 psi, with 2-inch screwed fittings. Valves shall be APCO, Val-Matic, or equal.

F. Adsorber Pressure Relief: Adsorber vessel pressure relief shall be designed to protect against overtemperature expansion while isolated from the system and from extreme system pressure excursions. The pressure relief system shall consist of one or more pressure-relief valves sized to maintain a pressure less than the maximum allowable working pressure at a flow rate of 1,000 gpm. Valve shall be Class 125, cast iron body, and bronze main valve trim. Valve shall be Cla-Val Clayton 50 01 BKH, or equal. Burst discs will not be accepted.

G. Valve Tags – All valves shall include a corrosion and UV resistant tag securely wired to the operating handle. The tag shall include a unique valve tag number corresponding to the Supplier’s process flow diagram.

2.08 MISCELLANEOUS

A. Spray Nozzle: Spray water piping for washdown of the vessel during and after spent IX resin transfer shall extend to a spray wash nozzle in the top dish of each vessel. This line shall be provided with a 2-inch ball valve and 2-inch cam-lock adapter located at an operable elevation. A full cone spray nozzle will be installed in the top dish. The spray water piping shall include a tee and a second ball valve located downstream of the check valve to facilitate manual air release from the vessel.

B. Flush Connections: Stainless steel flush connections shall be provided on each spent and fresh resin line downstream of the ball valve and at the spray nozzle supply line. Flush connections shall consist of a short section of 3/4-inch pipe, and a 3/4-inch full port ball valve and 3/4-inch quick disconnect adapter (Chicago Fitting) to match water hose fittings.

C. Pressure Gauges: The vessel manifold piping shall be equipped with pressure gauges to indicate the pressure of water entering and exiting each vessel. Connection size shall be ½ inch. Range shall be 0-100 psi with an accuracy of 1 percent of full range. Gauges shall not be less than 4-1/2 inches in diameter. Pressure gauge assemblies shall be isolated from process piping with a 1/2-inch bronze ball valve. Gauges shall have stainless steel or bronze bourdon tube and be fitted with shatterproof glass. Gauges shall be Ashcroft, Crosby, Marshalltown, Marsh, or equal.

D. Transfer Hose Connectors: The IX resin slurry piping shall be fitted with hose connectors, such that carbon transfer to and from the adsorber vessels can be facilitated with transfer hoses. These connectors shall be 4-inch quick disconnect (cam-lock) adapters constructed of 304 stainless or aluminum as manufactured by OPW Division of Dover Corporation as Kamlok Part No. 633-F or equal equipped with dust caps.

E. Sample Piping

1. The following sample taps shall be provided as a minimum:

a. Influent water to each adsorber vessel.

b. Treated Water from each adsorber vessel.

c. IX Resin intermediate taps at the 25, 50, and 75 percent bed depth point on each vessel.

2. The sample piping shall be 1/2-inch-diameter stainless steel tubing with

1/2-inch diameter stainless steel ball valves.

F. Influent, Effluent and Drain Pipes: The suppliers pipelines the equipment will connect are:

1. Influent and effluent, 10” Ductile iron pipe, flanged fitting.

2. Drain , 8 “ ductile iron pipe, flanged fitting.

Electrical and Instrumentation: The 30 Amp single phase power and communication from the pumps station power distribution panel to pull boxes adjacent to the treatment system will be provided for the Suppliers use.

2.09 PAINTING AND COATING

A. The exterior of the vessel, supports, piping (including air vent piping) and appurtenances shall be coated with a 2-part catalyzed epoxy primer followed by a urethane topcoat.

B. All surfaces shall be prepared for coating in accordance with SSPC SP-6 C. Prime Coat: Apply 4 – 6 mils dry film thickness of a rust inhibitive 2-component epoxy coating with a minimum solids content of 66 percent by volume. Products shall be Ameron 385, Carboline 893, Tnemec 69, or equal.

D. Finish Coat: Apply 2 – 3 mils dry film thickness of a two-component aliphatic acrylic polyurethane coating with a minimum solids content of 58 percent. Products shall be Ameron Amerishield, Carboline 134 HS, Tnemec 74, or equal.

E. Surfaces Not to be Coated: Aluminum, brass, bronze, copper, plastic, rubber, or stainless steel, nameplates, or serial numbers.

F. The color shall be selected by the COR. No supplier logo shall appear on the vessels without approval of the COR.

2.10 ION EXCHANGE RESINS

A. General: Quantity of installed resin: minimum of 420 ft3 per vessel under clean bed operational conditions.

1. IX Resins:

a. One IX resin shall be selected from the following list.

1) Purofine

a) Manufacturer: Purolite.

b) Or Approved Equal

b. IX resin shall be virgin.

c. IX Resin shall be manufactured and buffered at a ANSI/NSF/CAN Standard 61 certified facility.

d. Each buffered resin shall be ANSI/NSF/CAN Standard 61 certified.

2. The IX resin shall conform to the following specifications:

a. Type: Strong base anion.

b. Particle Size:

1) Particle diameter:

a) Purofine PFA532E: 650 + 50 µm.

2) Uniformity Coefficient:

a) Purofine PFA532E: <1.3.

3) Water retention capacity:

a) Purofine PFA532E: 25 to 45 percent.

4) Specific gravity:

a) Purofine PFA694EBF: 1.04 g/mL.

3. IX resin analysis: Each delivered resin shall be accompanied by an analysis sheet certifying compliance with this SOW.

4. IX resin shall be pre-conditioning according to the conditions below or those conditions identified by the laboratory providing ANSI/NSF/CAN-61 certification for each buffered resin.

a. Purofine PFA532E:

1) Rinse with 20 Bed Volumes (BV) of deionized water at 4 bed volumes per hour.

B. SITE SPECIFIC REQUIREMENTS

1. The system shall produce effluent with less than 2 ppb of Perchlorate at the lead and lag vessels after resin installation before water is sent to the distribution system. Nitrosamine testing to confirm that resins are adequately rinsed shall be performed to confirm NMDA is not leaching from the resin at concentrations above the notification level.

PART 3 EXECUTION

3.01 OVERSIGHT

A. The USACE reserves the right to visit all fabrication facilities and perform independent inspections of materials and coatings at any time during the fabrication period. Such visits and inspections shall be at the USACE’s expense but will not result in any additional compensation to the Supplier.

3.02 3.2 DELIVERY

A. All vessel openings, including manways and nozzles, shall be securely covered in the factory prior to shipment to prevent the entrance of debris and animals.

3.03 INSPECTION

A. The supplier shall provide all materials, labor and equipment necessary and bear all costs associated with repair of the linings and coatings if holidays or other defects are identified during the inspection.

3.04 Reserved

3.05 Reserved

3.06 Reserved

3.07 Reserved

3.08 Reserved

3.09 Water Quality Test Results

3.10 CONNECTION PIPING TO VESSELS

A. The Suppliers Vessel system shall connect to these pipes. The supplier may modify the vertical height of the connection point; however, the horizontal location of the pipes shall not change. The Supplier shall furnish all fittings and hardware to complete the connection.

PAYMENT AND INVOICES

Advance Payments Milestone Schedule:

1. 15% upon Award

2. 15% upon submission of submittals

3. 20% upon Approval/Acceptance of Submittals

4. 35% upon receipt of materials at…