JMS Technical Submittal.pdf

jmsequipment.com

APPROVAL SUBMITTAL

EQUIPMENT: MEGA-VAC, SETTLER

SPECIFICATION: 12VAC5-590-872

CUSTOMER: CITY OF HARRISONBRUG PUBLIC

UTILITIES

PLANT NAME: HARRISONBURG WTP

LOCATION: HARRISONBURG, VA

ENGINEER: WILEY & WILSON

26S11 HARRISONBURG, VA

07/28/2026

REVISION A

JMS Project Number: 26S11 LocaƟon: Harrisonburg, VA

SUBMITTAL REVISION LOG

Revision Revision Date Comments A 07/28/2026 Original Issue

JMS Project Number: 26S11 Location: Harrisonburg, VA

TABLE OF CONTENTS

SECTION 1 – SCOPE SUMMARY

SECTION 2 – CLARIFICATIONS

SECTION 3 – CALCULATIONS

SECTION 4 – EQUIPMENT DRAWINGS

Introduction

Our mission at Jim Myers & Sons, Inc. is to be the preferred supplier of water and wastewater treatment equipment by providing superior product quality in design and manufacture, sales support, field service and customer-focused business practices.

Feedback Welcome and Appreciated

JMS is constantly researching and enhancing the quality of all product lines. JMS’s goal is to provide superior equipment as well as assist the consumer in becoming more informed and knowledgeable about the water and wastewater industry.

We welcome your comments and suggestions. Please call or write to JMS at the address listed below.

Jim Myers & Sons, Inc.

P.O. Box 38778

Charlotte, NC 28278

Phone: 704-554-8397

Fax: 704-554-9113

SECTION 1 – SCOPE SUMMARY

JMS Project Number: 26S11 LocaƟon: Harrisonburg, VA

Our proposal includes complete Mega-VAC (Hoseless Sludge Removal System) designed for four (4) sedimentaƟon basins each 27’5”(W) x 110’(L). One (1) Mega-VAC will be located in each basin, and one (1) master control panel will operate the four (4) Mega-VAC units.

AddiƟonally, our proposal includes complete stainless steel plate seƩler system designed for four (4) sedimentaƟon basins each measuring 27’-5”(W) x 110’(L) with 13’ (SWD) at maximum design flow of 15.3 MGD with plate seƩler applicaƟon rate of 0.30-gpm/sf and an 80% efficiency factor.

The following Spare Parts are included:

• No spare parts are included.

Special Tools:

No special tools.

Exclusions:

Site offloading, installaƟon, measurements, storage, field assembly and/or paint touch up.

Any calculaƟons on anything not in JMS’s scope of supply.

Control panels, juncƟon boxes, conduit, or any electrical devices not specifically detailed above.

Any items required for system compleƟon not listed on the Scope of Supply are considered exclusions.

All taxes including sales, use, gross receipts, or similar taxes imposed by federal, state, or local authoriƟes.

Policies

Returns

All returns must be authorized by Jim Myers & Sons, Inc., and no credit will be allowed for returned items that are damaged in transit, incomplete or received in an unsatisfactory condition. All items that are not eligible for credit will be returned to the customer via freight collect or discarded upon customer's instructions.

Delivery

Delivery dates represent only our best estimate of the time required to complete the work and ship the material from our plant. All orders are accepted with the understanding that shipping dates are approximate and subject to change because of factory conditions, fires, strikes, material shortages, civil or military authority, acts of God or other causes beyond our knowledge or control.

Back charges against JMS for alterations, shortages, damage repair and or discrepancies will be accepted only with written prior approval from a duly authorized representative of Jim Myers & Sons, Inc.

Anti-Seize Information

All JMS bolts and anchors are stainless steel material unless otherwise specified. Without an anti-seize application, bolting materials may become seized together. Therefore, JMS strongly recommends the use of anti-seize spray on all stainless-steel bolts and anchors.

Hoseless Sludge Removal System

1. GENERAL

1.1. WORK OF THIS SECTION

A. SCOPE: This section covers furnishing of a complete hoseless sludge removal system as specified herein. The hoseless sludge removal equipment shall be designed for installation in basins having the dimensions indicated herein and on the drawings.

B. CONTRACTOR: Shall furnish all labor, materials, equipment, and incidentals as shown, specified and required to provide a complete hoseless sludge removal system as specified herein.

C. GENERAL: Equipment finished under this section shall be fabricated and assembled in full conformity with drawings, specifications, engineering data, instructions, and recommendations by the named equipment manufacturer.

D. MANUFACTURER of the hoseless sludge removal equipment shall be vested with unit responsibility for the proper function of the complete hoseless sludge removal as specified.

The equipment covered by this specification is intended to be standard equipment of proven ability as manufactured by reputable concerns having extensive experience in the production of such equipment.

1.2. REFERENCES

A. The following is a list of standards which may be referenced in this section:

1. American Society for Testing and Materials (ASTM)

2. ASTM A240 – Type 316 Stainless Steel

3. American National Standards Institute (ANSI)

4. American Welding Society (AWS)

5. Water Quality Association (WQA)

1.3. SUBMITTALS

A. Submit for approval the following

1. Provide (4) complete approval submittal manuals. Manuals shall be in a white 3-ring binder, and include tabbed sections defining scope, process calculations, mechanical and structural calculations, catalog cuts, and drawings.

2. All structural design calculations shall be prepared by the manufacturer and sealed by a registered professional engineer.

3. Manufacturer’s literature, illustrations, specifications, and engineering data including total weight of each unit, structural loads at supports, connection details, and performance data.

4. Drawings shall show dimensions, overall arrangement of equipment and materials of construction.

5. Literature and certified shop drawings describing the equipment and showing all important details of construction and dimensions. Dimensions shall show overall size and space requirements including that for installation, leveling, dismantling and maintenance.

6. Cross sections and details, as to show that all components are in conformance with the intent of the specification and are satisfactory from the standpoint of design and physical arrangement.

7. All information required for the detailed design and location of all connecting or adjacent structural, mechanical, items, such as foundations, anchor bolts, steel supports, piping, conduit, etc. Any recommended or required deviations from the dimensions and locations of connecting or adjacent items as shown in the Drawings shall be described completely in the submittal.

8. Weight of the equipment and its distribution on the supports.

B. Operations and Maintenance Manuals

1. Submit (4) complete operation and maintenance manuals. Manuals shall be in a white 3-ring binder with tabbed sections to include reinforced 8.5” x 11” paper, 11” x 17” B-size drawings when practical, and individually sleeved D-size drawings.

2. The manual shall include: Equipment Introduction and Operation, Warranty, Troubleshooting, Maintenance, and Drawings.

3. Field start-up reports as described in paragraph 3.3 (Manufacture’s Services) shall be submitted after start-up for owner’s insertion into approved O&M manual.

C. NSF-61 Compliance

1. To ensure public safety, the plate hoseless sludge removal system shall be certified by

WQA or NSF to ANSI Standard 61. Systems that do not have NSF-61 certification on the entire hoseless sludge removal system as specified in the manufacturer's name will not be accepted.

1.4. QUALITY ASSURANCE

A. Basis of Design: The structural, mechanical and process design for the hoseless sludge removal system are based on information provided by the first-listed hoseless sludge removal system manufacturer. The cost of any changes and modifications resulting from the use of other approved hoseless sludge removal system equipment shall be borne solely by the CONTRACTOR. Fundamental changes in the configuration of the hoseless sludge removal system will not be allowed. The CONTRACTOR shall submit drawings and supporting documents, identifying all proposed changes, to the ENGINEER for approval.

Supporting documents shall delineate all proposed changes including complete structural calculations stamped and signed by a Registered Professional Engineer.

B. Structural Design

1. The structural design of the hoseless sludge removal system shall be in accordance with the requirements of the International Building Code 2018 (IBC).

2. The hoseless sludge removal system arrangement shown on the Contract Drawings is based on design information provided by the first-listed hoseless sludge removal system manufacturer. The actual installation requirements, including the location of structural supports, shall be based upon shop drawings submitted by the CONTRACTOR and approved by the ENGINEER based upon the requirements specified herein.

C. Responsibilities

1. The hoseless sludge removal system manufacturer is responsible for delivery of equipment and supplies required under these specifications. The CONTRACTOR is responsible for proper coordination and integration of all equipment required for installation in the basins to include all associated work shown on the drawings and specified in the Contract Documents. The CONTRACTOR is responsible for ensuring that the hoseless sludge removal system shall be properly coordinated and will function as a unit in accordance with these specifications. The CONTRACTOR shall bear ultimate responsibility for equipment coordination, installation, operation, and guarantees.

D. Workmanship

1. Workmanship in the fabrication of the hoseless sludge removal system shall be first-class, including the following requirements. The assembled hoseless sludge removal system shall have members that are straight and true. Structural distortions, warps, and other defects shall not be present in the hoseless sludge removal system before or after installation in the sedimentation basins.

1.5. PRODUCT DELIVERY, STORAGE, AND HANDLING

A. Sludge collectors shall be shipped in parts to be field-assembled and installed. Equipment shall be shipped with suitable transit protection. Special handling instructions shall be included.

B. Equipment shall be shipped on flatbed trucks to allow access by crane or other lifting mechanism provided by CONTRACTOR.

C. Equipment shall be stored and protected in accordance with the manufacturer's recommendations.

2. PRODUCTS

2.1. ACCEPTABLE MANUFACTURERS

A. The equipment shall be manufactured by:

1. Basis of Design and Base Bid Manufacturer is Jim Myers & Sons, Inc. (JMS), of Charlotte, NC

2. ENGINEER approved equal

B. The naming of a manufacturer does not exclude the full compliance with all aspect of this specification and no deviations shall be allowed.

C. The equipment described by this specification defines minimum equipment requirements as supplied by the first listed manufacturer. All unforeseen costs associated with any deviation from this specification shall be the sole responsibility of the Contractor.

D. The equipment shall be the product of a manufacturer engaged in the design and manufacture of similar equipment in successful operation in similar applications. The manufacturer shall have a minimum of 10 years of United States municipal water experience with 10 installations of the same type of equipment as specified herein with documented successful operation.

E. Pre-qualification requires manufacturers to submit the following 30 days prior to bid:

1. A list of at least 10 previous installations, including contact information, of similar size, design, and complying with the requirements as set forth within this specification.

2. Preliminary drawings and process calculations specific to this project.

3. A letter stating that their proposed design complies with all requirements as specified herein. If there are deviations from the specification a letter must address each deviation in detail.

4. Equipment shall be manufactured in the United States by US citizens fully certified by the American Welding Society for the tungsten inert gas (TIG) welding process to standard AWS D1.6. Letters of current certification shall be provided prior to bid and within the submittals.

F. The manufacturer shall be solely and fully responsible for the warranty and mechanical design adequacy of all the provided components under this Section.

G. The naming of a manufacturer in this specification is not an indication that the manufacturer’s standard equipment is acceptable in lieu of the specified component features. Naming is only an indication that the manufacturer may have the capability of engineering and supplying a system as specified. Manufacturers shall not quote, submit, or supply any material not in full compliance with this specification.

H. This specification has been prepared based on the specific requirements for this application.

These specifications may require modification of manufacturer’s standard equipment design and it will be mandatory that all manufacturers meet all requirement of this specification.

Equipment manufacturers shall modify their standard designs and recommended operational parameters to meet all requirements of this specification and as shown on the drawings.

2.2. PROCESS DESIGN AND CONDITIONS:

A. Design the sludge collection equipment for the following conditions:

1. Number of basins: 4

2. Basin width, each: 27.5-feet

3. Basin length, each: 110-feet

4. Side water depth: 13 feet

5. Number of units per basin: 1

6. Maximum design flow per basin: 3.82 MGD

7. Average sludge flow: 150 to 250 GPM

8. Discharge solids concentration: 0.3 to 2.0%

9. Input power: 120 Volts AC, single-phase

2.2. MATERIALS OF CONSTRUCTION

A. The components of the hoseless sludge collection system shall be made from the following minimum material requirements:

1. Sludge removal header: Type 304LSS (Minimum 3” 14 gauge thick tubing)

2. Sludge removal collection chamber: Type 304LSS (Minimum 6” 14 gauge thick tubing)

3. Sludge removal discharge pipe: Type 304LSS (Minimum 4” 14 gauge thick tubing)

4. Cable: Type 304SS (Minimum 1/4-inch thick)

5. Material compliance: Any materials submitted that do not meet these minimum standards will not be allowed. All material Type & thickness will be confirmed during the submittal process and prior to installation.

6. Material testing: After installation material will be tested to ensure all material at and within 4-inches of the air-water interface is Type 316SS and has been passivated to A380 standards.

7. Material passivation at and within 4-inches of the air-water interface: All stainless-steel components at and within 4 inches of the air-water interface shall be fully passivated to meet ASTM A-380 by means of fully submerged dipping process.

B. HARDWARE

1. All field assembly bolts, nuts, washers, and anchors shall conform to the following material standards:

Component Specification Description

Bolts ASTM F593 Group 2 T-316 Stainless Steel

Nuts ASTM F594 Group 2 T-316 Stainless Steel

Washers T-316 Stainless Steel Flat washers unless otherwise noted

Anchors ASTM F593 Group 2 T-316 Stainless Steel, wedge/adhesive

2. All submerged connections shall utilize T-649 stainless steel nylon insert locknuts.

3. Anti-seize: Apply NSF-61 approved food-grade anti-seize compound to all stainless steel threaded connections during factory and field assembly.

4. Hardware shall be compatible with the base materials to prevent galvanic corrosion.

Coated, plated, or carbon steel hardware is not acceptable.

5. Heavy hex bolts, mixed stainless grades, and non-standard sizes are not acceptable without written approval from the ENGINEER and MANUFACTURER.

C. REEL DRIVE ASSEMBLY:

1. Each drive assembly shall consist of a 3 Phase 230 Vac 1/4HP motor which shall be coupled to rotating drum(s) for manipulation of the cable that is attached to the collector assembly. Control panel will accept single phase 120V power and transform to

3 phase to power the motor.

2. The cable shall be firmly attached to the rotating drum(s) to prevent slippage.

3. The complete drive mechanism shall be packaged on a single base and provided with a painted aluminum enclosure.

4. The drive cable shall be Type 304 Stainless Steel with a minimum diameter of ¼”.

5. The drive assembly shall be capable of ceasing operation on an excessive load without physical damage to the drive unit. During an overload, protection built into the VFD will cease operation and activate an alarm. Operation will continue after alarm is reset. Back up protection in the form of a shear pin is required.

6. The drive assembly shall have integral position sensors which determine when the collector is at the end of the basin, the beginning of the basin and points in-between.

No external or under-water position sensors shall be required or allowed.

7. The drive shall have an emergency disconnect button pre-wired to the assembly which shall be a large, red palm operated single button.

D. HOSELESS COLLECTOR ASSEMBLY:

1. The hoseless sludge collector assembly shall be manufactured entirely of Type 304L

Stainless Steel, with the exception of non-metallic parts such as casters, bushings, orifices, etc. which will be manufactured of plastic, non-metallic materials.

2. The hoseless collector assembly shall be guided by means of horizontal casters on the ends of the header pipes. Guide rails are not allowed.

3. Flow through the hoseless sludge collector shall be controlled by a sludge valve as directed by the collector control panel. The control system shall prevent the two sludge collectors from discharging sludge simultaneously.

4. Each hoseless collector assembly shall be complete with polyurethane rolling casters and side wall casters located near the end of each of the four sludge collector headers.

Include all necessary mounting hardware.

5. Include stainless steel end stops to be anchored to the basin floor at the header assembly’s end of travel.

6. All underwater bearings shall be specifically designed for underwater use.

E. FLOW BALANCING

1. In order to assure that suction through each orifice hole is equally distributed, a flow balancing diagonal member shall be provided between each 3” header pipe and the 6" collection chamber.

2. Spacers or rings that restrict flow are not acceptable.

3. If flow balancing diagonals are not used, the maximum acceptable sludge removal unit width is 10’.

F. CONTROL SYSTEM:

1. There shall be two collector control panels to operate two (2) Hoseless Sludge

Collectors.

2. The sludge collection control panel shall be provided with sufficient spare I/O for the integration of the controls of the sludge valves. Panel shall be provided with adequate room to install the components required to control of opening and closing the sludge valve and providing position indication. The supply, installation, and integration of the

Sludge valve shall be the responsibility of the Contractor. Refer to Section 15102 for the sludge valve specifications.

G. Collector Control Panel:

1. The collector control panel shall include an Allen Bradley MicroLogix PLC based electronic control panel which shall automatically control all of the functions and operations of the sludge collector system.

2. The control panel shall arrive to the jobsite internally pre-wired ready to connect to each drive unit.

3. The control panel shall operate by use of a 120 VAC circuit furnished to the panel location.

4. The main control panel shall consist of the following:

a. Real time clock for programmable run initiation.

b. Programmable Logic Controller.

c. VFD with manual operation keys and speed control.

d. Power supply with 24 VDC control voltage.

e. Properly sized protective circuit breakers and terminal blocks.

5. HMI (touch screen) shall contain the following controls and indication:

a. System mode – Hand /Off / Auto.

b. Manual start.

c. Drive mode – Reverse / Off / Forward.

d. Valve position.

e. Real time clock settings.

f. Collector speed control.

g. Alarm reset.

h. Drive direction.

i. Home and End position indication.

6. Externally mounted air conditioner shall be mounted to the main control panel enclosure.

7. The control panel components shall be installed inside a NEMA 4X stainless steel control panel housing. The panel shall include a sun shield to maintain enclosure temperature.

It shall be the responsibility of the sludge collector manufacturer to provide all of the necessary control hardware, software and components as required for a complete installation

H. FABRICATION

1. All welded joints that will be fully or partially submerged shall be sealed watertight with continuous welds. All welding shall be performed in accordance with AWS standards.

2. All parts and components shall be factory-assembled in sections convenient for field handling and installation but requiring the minimum amount of work for field assembly.

Any field assembly work shall be bolted. No cutting or welding should be required on either field assembly or erection.

3. Gears and gear drives as part of an equipment assembly shall be shipped fully assembled for field installation.

4. All assembled parts and components ready for shipment shall be securely bundled, coiled, or crated and adequately protected from damage and corrosion during shipment and storage.

3. EXECUTION

3.1. INSTALLATION

A. The Contractor shall install the hoseless sludge removal system in strict accordance with the manufacturer's recommendations.

B. Install and align the hoseless sludge removal system in accordance with the manufacturer's recommendations and the Drawings.

C. LUBRICANTS AND LUBRICATING EQUIPMENT

1. Provide and install necessary food grade quality oils, greases and anti-seize compounds for initial operation of all equipment provided that requires oil, grease or anti-seize.

2. Food grade anti-seize shall be applied to the threads of all stainless steel bolts before assembly at the factory and field assembly.

3.2. WARRANTY

A. The supplier shall guarantee in writing that the equipment furnished is appropriate for the intended service and shall be free of manufacturing and fabrication defects in material and workmanship for a period of 1 year after the equipment is satisfactorily placed in service. If the equipment is not placed in service within 6 months of delivery, the 1 year guarantee period shall commence 6 months after delivery.

3.3. MANUFACTURER'S SERVICES

A. Manufacturer’s Field Services: The CONTRACTOR shall provide the following services in addition to any other services specified herein, and required by these Specifications.

1. Onsite field service: A factory trained manufacturer’s representative shall be provided for (2) trips each with (2) eight hour days onsite to provide installation review, instruction, and supervision. The installation services shall be coordinated between the CONTRACTOR and the manufacturer.

2. Start-up & O&M Training: A factory trained manufacturer’s representative shall be provided for (1) trip each with (2) eight hour days onsite to provide start-up and O&M training services. The start-up and O&M services shall be coordinated between the CONTRACTOR and the manufacturer.

3. After installation supervision and field testing services by the manufacturer, the

CONTRACTOR shall submit to the ENGINEER, a certification letter on the manufacturer’s letterhead and signed by the manufacturer certifying that the equipment was installed per the manufacturer’s recommendations.

4. The manufacturer shall provide start-up reports covering installation inspection and start-up activities.

5. The manufacturer shall provide operator training to all required plant personnel.

B. All costs, including travel, lodging, meals and incidentals for manufacturer service shall be included in the CONTRACTOR’S bid.

END OF SECTION

STAINLESS STEEL PLATE SETTLER SYSTEM

1. GENERAL

1.1. WORK OF THIS SECTION

A. SCOPE: This section covers furnishing of a complete plate settler system as specified herein.

The plate settler equipment shall be designed for installation in basins having the dimensions indicated herein and on the drawings. Sludge collecting equipment that will be installed within the basins below the plate settlers is covered in other sections.

B. CONTRACTOR: Shall furnish all labor, materials, equipment, and incidentals as shown, specified and required to provide a complete plate settler system as specified herein.

C. GENERAL: Equipment finished under this section shall be fabricated and assembled in full conformity with drawings, specifications, engineering data, instructions, and recommendations by the named equipment manufacturer.

D. MANUFACTURER of the plate settler equipment shall be vested with unit responsibility for the proper function of the complete plate settler system as specified. The equipment covered by this specification is intended to be standard equipment of proven ability as manufactured by reputable concerns having extensive experience in the production of such equipment.

1.2. REFERENCES

A. The following is a list of standards which may be referenced in this section:

1. American Society for Testing and Materials (ASTM)

2. ASTM A240– Type 304 & 316 Stainless Steel

3. American National Standards Institute (ANSI)

4. American Welding Society (AWS)

5. Water Quality Association (WQA)

1.3. SUBMITTALS

A. Submit for approval the following:

1. Provide (1) complete electronic approval submittal manuals in PDF format. Manuals shall include tabbed sections defining scope, process calculations, mechanical and structural calculations, catalog cuts, and drawings.

2. All structural design calculations shall be prepared by the manufacturer and sealed by a registered professional engineer.

3. Manufacturer’s literature, illustrations, specifications, and engineering data including the total weight of each unit, structural loads at supports, connection details, and performance data.

4. Drawings shall show dimensions, the overall arrangement of equipment and materials of construction.

5. Literature and certified shop drawings describing the equipment and showing all important details of construction and dimensions. Dimensions shall show overall size and space requirements including that for installation, leveling, dismantling and maintenance.

6. Cross sections and details, as to show that all components are in conformance with the intent of the specification and are satisfactory from the standpoint of design and physical arrangement.

7. All information required for the detailed design and location of all connecting or adjacent structural, mechanical, items, such as foundations, anchor bolts, steel supports, piping, conduit, etc. Any recommended or required deviations from the dimensions and locations of connecting or adjacent items as shown in the Drawings shall be described completely in the submittal.

8. Weight of the equipment and its distribution on the supports.

B. Operations and Maintenance Manuals

1. Submit (1) complete electronic operation and maintenance manual in PDF format.

Manuals shall be include tabbed sections.

2. The manual shall include Equipment Introduction and Operation, Warranty, Troubleshooting, Maintenance, and Drawings.

3. Field start-up reports as described in paragraph 3.3 (Manufacture’s Services) shall be submitted after start-up for owner’s insertion into approved O&M manual.

C. NSF-61 Compliance

1. To ensure public safety, the plate settler system shall be certified by NSF or WQA to

ANSI Standard 61. Systems that do not have NSF-61 certification on the entire plate settlers system as specified in the manufacturer's name will not be accepted.

1.4. QUALITY ASSURANCE

A. Basis of Design: The structural, mechanical and process design for the inclined plate settlers are based on information provided by the first-listed Inclined Plate Settler Manufacturer.

The cost of any changes and modifications resulting from the use of other approved inclined plate settler equipment shall be borne solely by the CONTRACTOR. Fundamental changes in the configuration of the plate settler system will not be allowed. The CONTRACTOR shall submit drawings and supporting documents, identifying all proposed changes, to the

ENGINEER for approval. Supporting documents shall delineate all proposed changes including complete structural calculations stamped and signed by a Registered Professional

Engineer.

B. The manufacturer shall be solely and fully responsible for the warranty and mechanical design adequacy of all the provided components under this Section.

C. The second naming of a manufacturer in this specification is not an indication that the manufacturer’s standard equipment is acceptable instead of the specified component features. Naming is only an indication that the manufacturer may have the capability of engineering and supplying a system as specified. Manufacturers shall not quote, submit, or supply any material, not in full compliance with this specification.

D. This specification has been prepared on the basis of the specific requirements for this application. These specifications may require modification of the manufacturer’s standard equipment design and it will be mandatory that all manufacturers meet all requirement of this specification. Equipment manufacturers shall modify their standard designs and recommended operational parameters to meet all requirements of this specification and as shown on the drawings.

E. Structural Design

1. The structural design of the plate settler system shall be in accordance with the requirements of the International Building Code 2024 (IBC).

2. Inclined Plate Settler support frames shall be designed for the worst-case load conditions of an empty basin and full effluent troughs.

3. The inclined plate settler arrangement shown on the Contract Drawings is based on design information provided by the first-listed Inclined Plate Settler Manufacturer. The actual installation requirements including the location of structural supports shall be based upon shop drawings submitted by the CONTRACTOR and approved by the

ENGINEER based upon the requirements specified herein.

F. Responsibilities

1. The Plate Settler Manufacturer is responsible for delivery of equipment and supplies required under these specifications. The CONTRACTOR is responsible for proper coordination and integration of all equipment required for installation in the basins, plate pack assemblies, support beams and columns, piping, and all other associated work shown on the drawings and specified in the Contract Documents. The

CONTRACTOR is responsible for ensuring that the plate settler system shall be properly coordinated and will function as a unit in accordance with these specifications. The

CONTRACTOR shall bear ultimate responsibility for equipment coordination, installation, operation, and guarantees.

G. Workmanship

1. Workmanship in the fabrication of the inclined plate settlers shall be first-class, including the following requirements. The assembled plate packs shall have members that are straight and true. Structural distortions, warps, and other defects shall not be present in the plate pack assemblies before or after installation in the sedimentation basins. All exterior surfaces and edges of the plate packs shall be smooth. Sharp corners shall be ground round and smooth.

1.5. PRODUCT DELIVERY, STORAGE, AND HANDLING

A. Plates shall be factory installed in the frame, and shall be shipped as one plate pack assembly. All equipment shall be shipped with suitable in transit protection. Special handling instructions shall be included.

B. Stainless steel lifting jigs shall be provided to ensure proper lifting locations a followed.

C. Plate packs shall be shipped on flatbed trucks to allow access by crane provided by the contractor.

D. Equipment shall be stored and protected in accordance with the manufacturer's recommendations.

1.6. SYSTEM DESCRIPTION

A. The plate settlers shall be designed for operation in the sedimentation basin as indicated on the Contract Drawings. The equipment shall be designed for the following conditions as listed in the Process Table B below.

B. PROCESS TABLE

Number of Basins 4

Inside Basin Width (ft) 27.5

Inside Basin Length (ft) 110

Side Water Depth (ft) 13

Design Flow (MGD) per Basin 3.82

Minimum Effective Projected Horizontal Surface

Area (ft2) per Basin 8,843-sf

Design Loading Rate (gpm/ft2) 0.30 gpm/ft^2

Plate Efficiency (Ten State Standard) 80%

Nominal parallel distance between plates (in.) 2.00

Plate Inclination Measured form the Horizontal 55 degrees

Minimum Plate Width (ft) 4

Maximum Plate Length (ft) 10

Minimum number of plate rows per basin 4

Minimum number of plates per basin 532

Number of effluent troughs per basin 5 (3 inside & 2 outside)

Raw Water Characteristics Prior To Flocculation

Temperature, Fahrenheit 33-90

Turbidity, NTU 2-100 pH 5.5 – 8.0

2. PRODUCTS

2.1. ACCEPTABLE MANUFACTURERS

A. The equipment shall be manufactured by:

1. Basis of Design and Base Bid Manufacturer is Jim Myers & Sons, Inc. (JMS), of Charlotte, NC

B. The equipment described by this specification defines minimum equipment requirements as supplied by the first listed manufacturer. All unforeseen costs associated alternate equipment from this specification shall be the sole responsibility of the Contractor.

C. The naming of a manufacturer does not exclude the full compliance with all aspect of this specification and no deviations shall be allowed.

D. The equipment shall be the product of a manufacturer engaged in the design and manufacture of similar equipment in successful operation in similar applications. The manufacturer shall have a minimum of 10 years of United States municipal water experience with 10 installations of the same type of equipment as specified herein with documented successful operation.

E. Pre-qualification requires manufacturers to submit the following 30 days prior to bid:

1. A list of at least 10 previous installations, including contact information, of similar size, design, and complying with the requirements as set forth within this specification.

2. Preliminary drawings and process calculations specific to this project.

3. A letter stating that their proposed design complies with all requirements as specified herein. If there are deviations from the specification a letter must address each deviation in detail.

4. Equipment shall be manufactured in the United States by US citizens fully certified by the American Welding Society for the tungsten inert gas (TIG) welding process to standard AWS D1.6. Letters of current certification shall be provided prior to bid and within the submittals.

2.2. MATERIALS OF CONSTRUCTION

A. The components of the Inclined Plate Settlers shall be made from the following minimum material requirements:

1. Plate Settler Frames: Type 304 SS

2. Plates: Type 304 SS

a. Type 316 SS (If any portion of the plate is at or within 4 inches of the air-water interface)

3. Top Flow Control Device (Angle or Tube): Type 304 SS (Minimum 14 gauge thick)

4. Effluent Toughs: Type 316 SS (Minimum 14 gauge thick)

5. Adjustable V-notch Weirs: Type 316 SS (Minimum 14 gauge thick)

a. Weirs must bolt to the effluent troughs with 3/8” Type 316 SS through bolt connection a minimum of every 12 inches.

6. Support Beams: Type 304 SS (Minimum 3/8-inch thick)

7. Hardware: Nuts, bolts, fasteners Type 316 SS

8. Material compliance: Any materials submitted that do not meet these minimum standards will not be allowed. All material Type & thickness will be confirmed during the submittal process and prior to installation.

9. Material thickness confirmation: No material thinner than 14 gauge will be allowed except for the plates.

10. Material passivation at and within 4-inches of the air-water interface: All stainless-steel components at and within 4 inches of the air-water interface shall be fully passivated to meet ASTM A-380 process.

B. HARDWARE

1. All field assembly bolts, nuts, washers, and anchors shall conform to the following material standards:

Component Specification Description

Bolts ASTM F593 Alloy Group 2 T-316 Stainless Steel

Nuts ASTM F594 Alloy Group 2 T-316 Stainless Steel

Washers T-316 Stainless Steel Flat washers unless otherwise noted

Anchors ASTM F593 Alloy Group 2 T-316 Stainless Steel

2. All submerged connections shall utilize T-316 stainless steel nylon insert locknuts.

3. Anti-seize: Apply NSF-61 approved food-grade anti-seize compound to all stainless steel threaded connections during factory and field assembly.

4. Hardware shall be compatible with the base materials to prevent galvanic corrosion.

Coated, plated, or carbon steel hardware is not acceptable.

5. Heavy hex bolts, mixed stainless grades, and non-standard sizes are not acceptable without written approval from the ENGINEER and MANUFACTURER.

2.3. PLATE SETTLER SYSTEM

A. The plate settler system shall be fabricated in accordance with the details indicated on the drawings and the requirements specified herein.

B. All components of the Inclined Plate Settlers that are not completely submerged under normal operation or at or within 4 inches of the air-water interface shall be constructed out of Type 316 stainless steel.

C. All stainless steel components at or within 4 inches of the air-water interface shall be Type

316 with a minimum thickness of 0.0747 inches (14 gauge). This includes the effluent troughs, adjustable v-notch weirs, baffles, top flow control device, plates, frame, etc.

D. The plate length and spacing shall be as specified in Process Table 1.6.B above. The entire system shall be designed to evenly distribute the flow to every plate and to remove the effluent evenly from the top of the plate pack.

E. The influent water shall primarily enter the inclined plate settlers through feed orifices in the side of the plates to minimize sludge re-entrainment. Feed openings shall be sized and located to maintain laminar flow and not to disturb settling solids.

F. The plate settler assemblies shall be self-supporting and shall not exceed a maximum allowable deflection L/360 based on all dead loads created by plates, troughs and frame assembly, a solids loading of 30 lbs per plate along with a concentrated live load of 250 lb at a single point placed at the midpoint of the top flow control device.

2.4. PLATE SETTLER FRAME

A. The plate settler frame shall be fabricated from stainless steel, as indicated above, rectangular tubing of adequate size to achieve the deflection criteria set forth on 2.3.F.

2.5. BAFFLES

A. The baffles being located at the air-water interface shall be constructed of Type 316 stainless steel with a minimum thickness of 0.0747 in. (14 gauge).

2.6. PLATES

A. The individual plates shall be constructed of a flat Type 304 or 316 stainless steel components designed to handle 30-lbs of solids loading.

B. The plates shall not be exposed to the air-water interface. Plate settler systems that utilize a design with any portion of the plate exposed and unprotected shall be manufactured of T-

316 stainless steel with a minimum thickness of 0.0747 in. (14 gauge).

C. The plates shall be proven to support a 30 lb. solids loading in accordance with ASTM E330 testing.

1. The plate shall be designed to handle a 30 lb. solids loading evenly distributed over the plate without failing, buckling, yielding, or creating a permanent deformation.

The plate shall not exceed a maximum deflection of L/140 anywhere along the plate width and shall have center stiffeners as needed to prevent deflection of plates.

2. The manufacturer shall provide a stamped report from a third-party testing laboratory in compliance with ASTM E330 and proving that the L/140 testing criteria is met.

2.7. TOP FLOW CONTROL DEVICE

A. Each plate shall be equipped with an integral Type 304 stainless steel (minimum 14-gauge thick) top flow control device to ensure that there is an even flow distribution across the entire surface area of the plate.

B. Plate settler systems that utilize a top flow tube at or within 4 inches of the air-water interface shall be Type 316 stainless steel with a minimum thickness of 0.0747 in. (14 gauge).

C. The top flow control device shall provide a suitable walking surface for routine cleaning and maintenance. Plate settlers that utilize material at this location less than 0.0747 in. (14 gauge) shall not be allowed.

D. The top flow control angle shall protect all surfaces of the plate. No exposed unprotected portions of the plate shall extend past the top flow control angle. Plate settler systems that utilize a design with any portion of the plate exposed and unprotected shall not be allowed.

A thin sheet metal cover which slides over the plates will not be acceptable.

E. Rivets on the top flow control device are not acceptable. Top flow control device must allow personnel to walk on the plates without the use of a temporary walking surface, such as plywood. Plates shall support a concentrated live load of 250 lb at a single point placed at the mid span of the top flow control device.

F. The manufacturer shall provide a P.E. stamped report from a third-party testing laboratory in compliance with ASTM E529-94 which proves that a single top flow control device does not experience deflection greater than 3/16” at the midspan with a 300 lb. point load applied. The top flow control device shall not experience any buckling, permanent deformation, or yielding.

2.8. TROUGHS & V-NOTCH WEIRS

A. The effluent troughs and adjustable v-notch weirs shall be constructed of Type 316 stainless steel with a minimum thickness of 0.0747 in. (14 gauge). The v-notch weirs shall be securely bolted to the effluent troughs with 3/8” Type 316 SS through bolt connection a minimum of every 12 inches.

B. Each trough shall be equipped with an adjustable bolt on v-notch weirs for leveling during initial installation and to provide an even flow distribution during operation. The weirs shall be manufactured from 0.0747 in. (14 gauge) minimum Type 316 stainless steel.

C. The v-notch weir shall be designed so each plate has two individual v-notches for even flow distribution. Plate settler systems that do not have v-notch weirs for adjustability and flow control shall not be allowed.

D. V-notch weirs shall operate at a minimum water elevation of 4 inches above the top flow control angle at design flow.

E. After exiting the plates, water shall travel no more than ½ of a plate width to reach an effluent trough. Effluent troughs shall be of the dual side loaded design and be located on both sides of the plate settler frame assembly.

F. Troughs located above the plate settlers obstructing access to the tops of the plates shall not be accepted.

G. Trough effluent openings shall be provided in the concrete walls at one end of the sedimentation basins for installation of the effluent troughs. Troughs shall be grouted in place after installation — coordinate opening size and location with the plate manufacturer.

2.9. SUPPORTS

A. The plate packs shall be supported by Type 304 stainless steel structural members with a minimum material thickness of 5/16-inch.

B. Support frames and beams shall be adequately sized to carry the load of the plate settling system under both wet and dry conditions without exceeding a maximum deflection of

L/360 of the span.

2.10. FABRICATION

A. All welded joints that will be fully or partially submerged shall be sealed watertight with continuous welds. All welding shall be performed in accordance with AWS standards.

B. All TIG welds shall be passivated to A380 standards.

3. EXECUTION

3.1. INSTALLATION

A. The Contractor shall install the inclined plate settler equipment in strict accordance with the manufacturer's recommendations.

B. Install and level the plate pack units and troughs in accordance with the manufacturer's recommendations and the Drawings. All plate settler support’s anchor locations shall be leveled to within +/- 1/8 of an inch. Exercise care in erecting and leveling the plate settlers, troughs, and weir plates so that the units are at the elevations shown on the Drawings or specified herein and have deflections within the manufacturer's specified limits.

C. After installation, all v-notch weirs must be leveled to within 1/16 of an inch of target elevation as shown on the manufacturer’s drawings.

D. Anti-seize thread lubricant shall be applied to the male threads of all stainless steel bolts at the time of the assembly.

E. After installation each plate settler unit shall be field tested by the Contractor by placing a 300 lb concentrated live load at the mid span of a single top flow control device at a single point and leaving it in place for 1 minute without buckling, permanent deformation, or yielding. The concentrated live load test shall be conducted by placing the 300 lb weight on the edge of a wedge at the midpoint of a single top flow control device. The test shall be repeated for a single top flow control device for each plate settler pack in each basin as selected by the Owner and Engineer. Use of plywood, flat sheet metal, or any other device meant to spread the point load over multiple flow control devices shall not be allowed. Contractor shall document the field test results with a table identifying each test location (basin number, plate pack number, and plate number) and the test results as well as documenting the results with photographs labled for the basin number and location within the basin (plate pack number and plate number). If a field test fails the entire plate pack shall be replaced at no cost to the Owner.

3.2. WARRANTY

A. The supplier shall guarantee in writing that the equipment furnished is appropriate for the intended service and shall be free of manufacturing and fabrication defects in material and workmanship for a period of 1 year after the equipment is satisfactorily placed in service. If the equipment is not placed in service within 6 months of delivery, the 1 year guarantee period shall commence 6 months after delivery.

3.3. MANUFACTURER'S SERVICES

A. Manufacturer’s Field Services: The CONTRACTOR shall provide the following services in addition to any other services specified herein, and required by these Specifications.

1. Onsite field service: A factory-trained manufacturer’s representative shall be provided for (2) trips each with (2) eight hour days onsite to provide installation review, instruction, and supervision. The installation services shall be coordinated between the CONTRACTOR and the manufacturer.

2. Start-up & O&M Training: A factory-trained manufacturer’s representative shall be provided for (1) trip with (2) eight hour days onsite to provide start-up and

O&M training services. The start-up and O&M services shall be coordinated between the CONTRACTOR and the manufacturer.

3. After installation supervision and field testing services by the manufacturer, the

CONTRACTOR shall submit to the ENGINEER, a certification letter on the manufacturer’s letterhead and signed by the manufacturer certifying that the equipment was installed per the manufacturer’s recommendations.

4. The manufacturer shall provide start-up reports covering installation inspection and start-up activities.

5. The manufacturer shall provide operator training to all required plant personnel.

B. All costs, including travel, lodging, meals and incidentals for manufacturer service shall be included in the CONTRACTOR’S bid

END OF SECTION

SECTION 2 – CLARIFICATIONS

Clarifications Jim Myers & Sons, Inc. is a supplier of Mega-VAC, SETTLER and other equipment as detailed in the Scope of Supply. The equipment is designed based on our years of experience and our standard means of manufacture and supply. The equipment meets or exceeds the requirements of the specifications in terms of performance, quality workmanship and materials. Listed below are specific features of the proposed equipment that differ from the specifications or where a clarification is made regarding the specifications.

• Structural foundation drawings illustrate a floor sloped in three (3) different directions. Please note this type of slope is not compatible with the Mega-VAC system as it will bind the equipment during operation. A flat basin floor is preferable, however, slope in one direction is acceptable as well.

SECTION 3 – CALCULATIONS

26S11 Mega-VAC – Structural Report

26S11 Harrisonburg, VA Mega-VAC Structural Report

By: Tyler Darwin-Strait

Project Engineer I, JMS, Inc.

Date: 07/15/2026

07/20/2026

1.0 REVISIONS

REV DATE DESCRIPTION BY CHECK

0 07/15/2026 ORIGINAL RELEASE TDS -

07/20/2026

2.0 SUMMARY

A total of four (4) JMS Mega-VACS will be installed in Harrisonburg, VA. One (1) vac is to be installed per basin, with four (4) basins in total to be constructed. The reaction loads at the drive stand, drive end pulley, non-drive end pulley, and mechanical stops were calculated to ensure adequate concrete anchor sizing and embedment depth. RISA-3D 23.0 was used in conjunction with Hilti PROFIS and hand calculations for the analysis.

Figures shown below are the rendered models within SolidWorks.

Figure 1: Rendered Model

Figure 2: Drive Stand Figure 3: Drive End Pulley

Figure 4: Non-Drive End Pulley Figure 5: Mechaical Stop

3.0 DESIGN

3.1 Codes

• International Code Council (ICC), 2021 International Building Code (IBC)

• American Society of Civil Engineers (ASCE 7-16), Minimum Design Loads for Buildings and Other Structures

• American Concrete Institute (ACI 318-19), Building Code Requirements for Structural Concrete and Commentary

• American Institute of Steel Construction (AISC 360-16), Specification for Structural Steel Buildings

3.2 Materials

• Drive Stand: 304 Stainless Steel Plate and Formed Shapes

• Hardware: ASTM F593 316 Stainless Steel

• Hardware, Anchors: ASTM F593 316 Stainless Steel

3.3 Loads

The following loads were used in assessing the structures for the support frames:

Dead Loads (DL)

• Total Weight of Drive Material 365 lbs

Live Loads (LL)

• Max Cable Tension 1,000 lbf

Factored Loads for Anchors

• Max Cable Tension LRFD Factor 1.6 x LL 1,600 lbf

Seismic Loading (EL)

The ASCE Hazard Tool was used to determine the Seismic Design Category with use of the following assumption: ASCE/SEI 7-16 Standard, III Risk

Category, and Default Soil Class. Per these criteria, the tool determined that this location falls under Seismic Design Category B.

Acco…