Addendum 1 - Twelve Mile Creek WRF 9.0 MGD Expansion.pdf

Invitation for Bid No. 2024-030

Twelve Mile Creek WRF 9.0 mgd Expansion

ADDENDUM No. 1

ISSUE DATE: July 25, 2024

Responding Offerors on this project are hereby notified that this Addendum shall be made a part of the above named IFB document.

The following items add to, modify, and/or clarify the IFB documents and shall have the full force and effect of the original Documents. This Addendum shall be acknowledged by the Offeror in the IFB document.

ADDENDUM NO. 1 TO CONTRACT DOCUMENTS

Date: July 25, 2024

Project: Twelve Mile Creek WRF 9.0 mgd Expansion

Owner: Union County Water

Engineer: Hazen and Sawyer

To All Bidders:

Contractors submitting Proposals for the above-named Project shall take note of the following changes, additions, deletions, clarifications, etc., in the Contract Documents, which shall become part of and have precedence over anything contrarily shown or described in the Contract Documents, and all such shall be taken into consideration and be included in the Contractor’s Bid Proposal.

All other general items, conditions, drawings, and specifications shall remain the same.

Please acknowledge the receipt of Addendum No. 1.

Refer to the Attached Sheets.

Michael D. Parker, P.E.

HAZEN AND SAWYER

Twelve Mile Creek WRF 9.0 mgd Expansion

Addendum No. 1

SCOPE:

This addendum covers changes to the Contract Documents as described below.

QUESTIONS & ANSWERS

QUESTION ANSWER

Provide additional information [about requirements for the temporary valves at the MLSS Distribution Box].

Plug valves or gate valves are acceptable.

[Noting that Drawings M310 and M403 indicate different sizes for the temporary ATE piping, 30” and 24” piping respectively, please clarify if 30” x 24” reducers are required.]

Provide 30” x 24” reducers. Location of the reducers is at the discretion of the Contractor.

[Clarify material for the temporary ATE piping.]

The permanent pipe connections at the Aeration Effluent Channels and at the MLSS Distribution Box shall be DIP and the temporary piping shall be HDPE with welded fittings and joints as appropriate.

[Clarify extents of temporary piping shown on M403. There appears to be different line weights shown for portions of the 24” header.]

The dashed line indicated on M403 is correct, please ignore apparent differences in line weights.

[Provide clarification regarding the sole sourcing of the odor control fan.]

Duall is sole-sourced specifically for the large fan at the existing Odor Control – Solids facility to provide an exact match to the existing fan. The fan manufacturer is open for the new odor control system.

For the 3 cast iron sluice gates [in IPS 1], will stainless steel be accepted in lieu of cast iron?

Stainless steel will be acceptable.

Provide the manufacturer of the existing sluice gates [in IPS 1].

The manufacturer of these gates is unknown.

Provide the manufacturer and model number of the three existing electric actuators that are to be reused [in the Screening Structure].

The actuators are Limitorque MX-10 Series A.

Provide the manufacturer of the three slide gates that are being replaced [in the Screening Structure].

The manufacturer of these gates is Hydro Gate, LLC.

[Re: the EFW Pump Station surge tank:

Confirm the required distance between the tank flange and pad so we can determine if leg extensions are required or if standard legs are long enough to provide sufficient clearance.]

The distance between the tank flange and the equipment pad shall be a minimum of 12-inches to allow space for hand tools and equipment maintenance.

SPECIFICATIONS:

SECTION 00 01 10 – TABLE OF CONTENTS

Under Division 03, add row for “03 40 10 – Polymer Precast Concrete Manholes”.

Under Division 40, add row for “40 05 59.33 – Cast Iron Slide Gates”.

SECTION C-410 – BID FORM

Replace section in its entirety with the attached section.

SECTION 01 52 00 – CONSTRUCTION FACILITIES

Replace section in its entirety with the attached section.

SECTION 03 40 10 – POLYMER PRECAST CONCRETE MANHOLES

Add the attached section.

SECTION 40 05 59.33 – CAST IRON SLIDE GATES

Add the attached section.

SECTION 40 05 62 – PLUG VALVES

Paragraph 2.01. Delete the text “(100%)”.

SECTION 40 05 67.50 – BLADDER-TYPE SURGE TANK

Subsection 2.03. A. Change “Maximum design pressure” to 350 psi.

Paragraph 2.04. C.1. Delete the text “90-degree”.

Paragraph 2.04. C.2. Replace the text “ 4” ” with “ 2” ”.

Paragraph 2.04. E.1. Delete the text “Provide permanently installed davit to remove access cover.”

Paragraph 2.04. F.1. Delete the text “10% above”.

SECTION 40 05 68.23 – MISCELLANEOUS VALVES

Paragraph 2.04. A. Add “Vent-tech” to list of named manufacturers.

SECTION 46 41 27.11 – VERTICAL TURBINE MIXERS

Subsection 2.01 A.-B. Delete all text and replace with the following.

Paragraph A. The Lump Sum base bid shall include vertical turbine mixers by SPX FLOW, Inc. (Philadelphia Mixing Solutions, LLC Model No.

3853M Raven).

Paragraph A.1. The Bid Form includes an alternate bid for vertical turbine mixers by

NOV Inc. (Chemineer, Inc.).

Paragraph B. Not used.

SECTION 46 43 21.13 – CIRCULAR SECONDARY CLARIFIER EQUIPMENT

Subsection 1.02 C. Change “Minimum Ball Race Diameter, inches” value to 40.

Subsection 2.02 G. (Row for “Walkway, Handrail…”) Change “Stainless Steel” to “304 SS”.

Subsection 2.09 Replace subsection title with the following text:

“2.09 SCUM REMOVAL EQUIPMENT – FULL-LENGTH SCUM TROUGH TYPE (ALTERNATE

BID)”

Subsection 2.09* Insert new subsection “ 2.09* ” with the following text:

“2.09* SCUM REMOVAL EQUIPMENT – EXTENDED SCUM TROUGH TYPE (BASE BID)

A. The scum removal equipment shall consist of one (1) anti-rotational scum baffle, two (2) rotating skimmer arm(s) and an extended length scum trough with a flushing device. The equipment manufacturer shall be responsible for the design of all components, and shall provide evidence of having previously furnished similar scum removal systems. The skimmer arm(s) shall rotate with the clarifier mechanism and shall push scum into the extended length scum trough. The scum and flush water shall flow to the scum collection well. The scum removal equipment shall operate effectively throughout the full range of specified clarifier effluent flows.

B. The stationary anti-rotational scum baffle shall be designed to trap scum as the rotating skimmer blade approaches and direct the trapped scum outward toward the scum trough. The anti-rotational scum baffle shall consist of a structural steel support angle hung from a 316 SS truss spanning from the center of the clarifier to the outer wall, 3/16” thick Duro 60 2-ply reinforced neoprene “hay bailer” belting and 1/4" thick steel backing bar. The belting shall extend a minimum of 3-inches below the bottom of the V-notch elevation and shall run from the influent well to the entry point of the submerged scum box. The submerged portion of the scum baffle shall be doubled over to form a teardrop shape to enhance scum capture.

C. The skimmer arm shall consist of a skimming assembly attached to a skimmer blade. The skimmer blade support shall be a min. 8” channel. The entire assembly shall be supported from the rake arm and rotating center feedwell, with a maximum support spacing of 25 feet.

D. The skimmer assembly shall be equipped with a hinged 1/2-inch 60 durometer neoprene wiper blade extending the full width of the scum collection trough. The neoprene blade shall be fastened to the arm with 316 stainless steel fasteners and 316 stainless steel back-up bars.

The submerged portion of one neoprene blade shall be formed into a C-shape to enhance scum capture and cleaning of the trough approach ramp as the blade travels up the ramp.

E. The extended scum trough shall be fabricated from minimum 1/4-inch 316 stainless steel plate, shall be 20 feet in length towards the center of the clarifier, and shall be supported from the tank wall. The trough and support structure should be designed for all dead loads plus a 200-pound point load at the feedwell end of the trough with no more than ½-inch deflection.

The approach ramp of the trough shall be a minimum of 12 inches wide. The inner end of the trough shall be 6 inches deep and the bottom shall slope to 20 inches deep at the tank wall.

The crest of the trough shall be above the high-water surface elevation shown on the Drawings. Fabrication of the trough shall be true and free of warpage. A 6-inch coupling shall be provided as shown on the Drawings for connecting to the 6-inch SS scum line.

F. The clarifier equipment manufacturer shall furnish a flush valve assembly for automatic flushing of the scum box and scum pipe. The flush valve assembly shall allow approximately 5 to 20 gallons of clarified effluent to enter the box as the skimmer assembly passes over the scum trough. It shall consist of an actuator bar and a pivoting assembly that will lift a ball to open the valve. A counterweight shall return the ball to its closed position after the flush cycle.

Flushing port shall be a minimum of 2” diameter and shall be PVC, stainless steel, or neoprene.”

Subsection 2.13 A. Change “Manufacturer shall…” to “Contractor shall…”.

DRAWINGS:

DRAWING C51

Add annotation pointing to the Influent Junction Structure with the text, “See Note 3 for coating of Influent Junction Structure”.

Add the following note:

“3. During the course of work, Owner will decide whether or not to include replacement of concrete coating for the Influent Junction Structure. If the work is determined to be included, change order pricing shall be developed by the Contractor. Payment for any such work will be paid out of the lump sum contingency allowance, therefore the pricing shall not be included in the Lump Sum Bid Price.

The following work sequence shall be followed: Clean interior of the Influent Junction Structure. Remove existing coating and recoat interior of influent junction structure during bypass operations. Coating shall cover the underside of the top slab and interior of all walls. After removal of old coating and prior to application of new coating, Contractor shall provide access to the Engineer. The Contractor, in conjunction with the Engineer, shall determine the extent of deteriorated concrete to be rehabilitated. Coating shall be in accordance with Specification 09 96 59.”

DRAWINGS M110 – M114

Replace drawings with the attached drawings.

[Noted content:

• Approximately 40 linear feet of existing odor ductwork and supports shown to be demolished.

• Existing grating shown to be demolished.

• New grating shown to be installed.

• Gate stem support beams shown to be replaced.

• Note 3 added on M111.]

DRAWINGS M442 - M443

Drawings to be revised with the following.

[Noted content:

• Full length scum trough shown to modified with a reduced length of 20-ft.]

CLARIFICATIONS, ETC:

1. The attendance record from the pre-bid conference is attached. See Attachment #6.

2. The Engineer’s Estimate for the project is $45,000,000.

3. Section 06 51 00: Named manufacturers for some products will also be considered for other products as long as materials meet the technical specifications. EDGENG is an acceptable “or equal” manufacturer, but no products have been pre-approved.

4. All maintenance holes are designed as uncoated, reinforced concrete structures.

Polymer concrete maintenance holes will be considered for approval if submitted (at no additional cost to Owner).

5. Perry Fiberglass’s request has been declined to be added as a named manufacturer for the following Specifications: Section 40 05 36.13, Section 43 41 45, and Section 44 31

31.

ATTACHMENTS:

• Attachment #1: C-410 – Bid Form

• Attachment #2: 01 52 00 – Construction Facilities

• Attachment #3: 03 40 10 – Polymer Precast Manholes

• Attachment #4: 40 05 59.33 – Cast Iron Slide Gates

• Attachment #5: Drawings M110 – M114

• Attachment #6: Attendance Record for Pre-Bid Conference

• Attachment #7: Sole Source Equipment Proposals

ATTACHMENT #1

EJCDC® C-410, Bid Form for Construction Contracts.

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page i

BID FORM

UNION COUNTY WATER

UNION COUNTY, NORTH CAROLINA

TWELVE MILE CREEK WRF 9.0 MGD EXPANSION PROJECT

UCW PROJECT NO. 7364-1

IFB # 2024-030

TABLE OF CONTENTS

Page

ARTICLE 1 – Bid Recipient

ARTICLE 2 – Bidder’s Acknowledgements

ARTICLE 3 – Bidder’s Representations

ARTICLE 4 – Bidder’s Certification

ARTICLE 5 – Basis of Bid

ARTICLE 6 – Time of Completion

ARTICLE 7 – Attachments to this Bid

ARTICLE 8 – Defined Terms

ARTICLE 9 – Bid Submittal

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 1

ARTICLE 1 – BID RECIPIENT

1.01 This Bid is submitted to:

Union County Government Center Attn: Vicky Watts 500 N. Main Street, Suite 709 Monroe, NC 28112

1.02 The undersigned Bidder proposes and agrees, if this Bid is accepted, to enter into an Agreement with Owner in the form included in the Bidding Documents to perform all Work as specified or indicated in the Bidding Documents for the prices and within the times indicated in this Bid and in accordance with the other terms and conditions of the Bidding Documents.

ARTICLE 2 – BIDDER’S ACKNOWLEDGEMENTS

2.01 Bidder accepts all of the terms and conditions of the Instructions to Bidders, including without limitation those dealing with the disposition of Bid security. This Bid will remain subject to acceptance for 60 days after the Bid opening, or for such longer period of time that Bidder may agree to in writing upon request of Owner.

ARTICLE 3 – BIDDER’S REPRESENTATIONS

3.01 In submitting this Bid, Bidder represents that:

A. Bidder has examined and carefully studied the Bidding Documents, and any data and reference items identified in the Bidding Documents, and hereby acknowledges receipt of the following Addenda:

Addendum No. Addendum, Date

B. Bidder has visited the Site, conducted a thorough, alert visual examination of the Site and adjacent areas, and become familiar with and satisfied itself as to the general, local, and Site conditions that may affect cost, progress, and performance of the Work.

C. Bidder is familiar with and has satisfied itself as to all Laws and Regulations that may affect cost, progress, and performance of the Work.

D. Bidder has carefully studied all: (1) reports of explorations and tests of subsurface conditions at or adjacent to the Site and all drawings of physical conditions relating to existing surface or subsurface structures at the Site that have been identified in the Supplementary Conditions, especially with respect to Technical Data in such reports and drawings, and (2) reports and drawings relating to Hazardous Environmental Conditions, if any, at or adjacent to the Site that have been identified in the Supplementary Conditions, especially with respect to Technical Data in such reports and drawings.

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E. Bidder has considered the information known to Bidder itself; information commonly known to contractors doing business in the locality of the Site; information and observations obtained from visits to the Site; the Bidding Documents; and any Site-related reports and drawings identified in the Bidding Documents, with respect to the effect of such information, observations, and documents on (1) the cost, progress, and performance of the Work; (2) the means, methods, techniques, sequences, and procedures of construction to be employed by Bidder; and (3) Bidder’s safety precautions and programs.

F. Bidder agrees, based on the information and observations referred to in the preceding paragraph, that no further examinations, investigations, explorations, tests, studies, or data are necessary for the determination of this Bid for performance of the Work at the price bid and within the times required, and in accordance with the other terms and conditions of the Bidding Documents.

G. Bidder is aware of the general nature of work to be performed by Owner and others at the Site that relates to the Work as indicated in the Bidding Documents.

H. Bidder has given Engineer written notice of all conflicts, errors, ambiguities, or discrepancies that Bidder has discovered in the Bidding Documents, and confirms that the written resolution thereof by Engineer is acceptable to Bidder.

I. The Bidding Documents are generally sufficient to indicate and convey understanding of all terms and conditions for the performance and furnishing of the Work.

J. The submission of this Bid constitutes an incontrovertible representation by Bidder that Bidder has complied with every requirement of this Article, and that without exception the Bid and all prices in the Bid are premised upon performing and furnishing the Work required by the Bidding Documents.

ARTICLE 4 – BIDDER’S CERTIFICATION

4.01 Bidder certifies that:

A. This Bid is genuine and not made in the interest of or on behalf of any undisclosed individual or entity and is not submitted in conformity with any collusive agreement or rules of any group, association, organization, or corporation;

B. Bidder has not directly or indirectly induced or solicited any other Bidder to submit a false or sham Bid;

C. Bidder has not solicited or induced any individual or entity to refrain from bidding; and

D. Bidder has not engaged in corrupt, fraudulent, collusive, or coercive practices in competing for the Contract. For the purposes of this Paragraph 4.01.D:

1. “corrupt practice” means the offering, giving, receiving, or soliciting of any thing of value likely to influence the action of a public official in the bidding process;

2. “fraudulent practice” means an intentional misrepresentation of facts made (a) to influence the bidding process to the detriment of Owner, (b) to establish bid prices at artificial non-competitive levels, or (c) to deprive Owner of the benefits of free and open competition;

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3. “collusive practice” means a scheme or arrangement between two or more Bidders, with or without the knowledge of Owner, a purpose of which is to establish bid prices at artificial, non-competitive levels; and

4. “coercive practice” means harming or threatening to harm, directly or indirectly, persons or their property to influence their participation in the bidding process or affect the e execution of the Contract.

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 4

ARTICLE 5 – BASIS OF BID

5.01 Bidder will complete the Work in accordance with the Contract Documents for the following price(s):

Lump Sum Bid Price $ and

Unit Price Items

Disposal of Residuals to Subtitle D Landfill 200 CY $_____ / CY $ ______________

Overexcavation and Compacted ABC Fill 500 CY $_____ / CY $ ______________ and

Lump Sum Pre-Negotiated Equipment Prices

Odor Control Centrifugal Fan (43 11 19) $214,150.00

Submersible Solids-Handling Pumps (43 25 13) $961,565.00 and

Allowance Items

Lump Sum Contingency Allowance $ 2,000,000.00

Union County Building Code Enforcement Permit Fee Allowance $ 15,000.00

Union Power Cooperative Power Line Relocation Allowance $ 15,000.00

Total of All Line Items = Total Bid Price $

5.02 Alternate Bid 1: Bidder will identify in the following table the Lump Sum ADD or (DEDUCT) to supply a single stage centrifugal blower as specified in Section 43 11 12 by the named “Alternate Bid Manufacturer” by circling one item and identifying the value:

Alternate Bid 1: ADD $

Alternate Bid 1: (DEDUCT) ($ )

5.03 Alternate Bid 2: Bidder will identify in the following table the Lump Sum ADD or (DEDUCT) to supply FRP flat covers as specified in Section 13 33 12 by the named “Alternate Bid Manufacturer” by circling one item and identifying the value:

Alternate Bid 2: ADD $

Alternate Bid 2: (DEDUCT) ($ )

5.04 Alternate Bid 3: Bidder will identify in the following table the Lump Sum ADD or (DEDUCT) to supply a full-length scum trough, if available by manufacturer, as specified in Section 46 43

21.13 by circling one item and identifying the value:

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 5

Alternate Bid 3: ADD $

Alternate Bid 3: (DEDUCT) ($ )

5.05 Alternate Bid 4: Bidder will identify in the following table the Lump Sum ADD or (DEDUCT) to supply vertical turbine mixers as specified in Section 46 41 27.11 by the named “Alternate Bid Manufacturer” by circling one item and identifying the value:

Alternate Bid 4: ADD $

Alternate Bid 4: (DEDUCT) ($ )

ARTICLE 6 – TIME OF COMPLETION

6.01 Bidder agrees that the Work will be substantially complete within 810 calendar days after the date when the Contract Times commence to run as provided in Paragraph 2.03 of the General Conditions, and will be completed and ready for final payment in accordance with Paragraph

14.07 of the General Conditions within 900 calendar days after the date when the Contract Times commence to run.

6.02 Bidder accepts the provisions of the Agreement as to liquidated damages.

ARTICLE 7 – ATTACHMENTS TO THIS BID

7.01 The following documents are submitted with and made a condition of this Bid:

A. Required Bid security;

B. List of Proposed Subcontractors;

C. List of Proposed Suppliers;

D. List of Project References;

E. Evidence of authority to do business in the state of the Project; or a written covenant to obtain such license within the time for acceptance of Bids;

F. Contractor’s License No.: __________;

G. Required Bidder Qualification Statement with supporting data;

H. Minority Participation Forms;

1. Identification of HUB Certified/Minority Participation Form

2. Affidavit A or Affidavit B, as applicable

3. NC Division of Water Infrastructure MBE/WBE (DBE) Compliance Supplement

I. Appendix A, 31 C.F.R. Part 21 – Certification Regarding Lobbying

CERTIFIED LIST OF PROPOSED MANUFACTURERS/ SUBCONTRACTORS

As part of the procedure for submission of Bids on this project, Bidder submits the following lists of Subcontractors and Suppliers to be used in the performance of work to be done on said Project. The lists furnished shall be based on requirements of the Contract Documents. Changes to this list after the Bid opening shall only be as approved by the Owner upon request by the Contractor or as required by the Owner based upon review of Contractor's submittals.

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 6

CATEGORY SUBCONTRACTOR

Electrical

HVAC / Mechanical

Plumbing

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SCHEDULE OF SUPPLIERS

The following Major Equipment & Supplier Table designates items which shall be identified by the Bidder upon submittal of Bid.

1. The Bidder must circle one (1) named supplier for each item listed in the table. The named supplier circled for each equipment item will identify whose equipment is included in the Bidder’s Lump Sum Bid Price and whose equipment will be supplied by the Bidder during construction. If no supplier is circled for any equipment item, the Owner will choose the named manufacturer whose equipment will be supplied by the Bidder at no adjustment of the Bidder’s Lump Sum Bid Price.

2. Owner acceptance of equipment supplied by a named manufacturer or supplier does not constitute a waiver of the Specifications.

3. Equipment by a manufacturer or supplier not named in the referenced equipment specification will be considered for equivalence to the Acceptable Manufacturer(s) listed in the referenced equipment specification during the bid period only in accordance with Article 11 of the Instructions to Bidders. A non-named manufacturer shall demonstrate full compliance with the specifications in all aspects including form, features, construction materials, O&M cost, mechanical and control functionality, performance reliability, quality, and general configuration.

To be considered, non-named manufacturers shall submit the following information to the Engineer and Owner within the time allowed in accordance with Article 11 of the Instructions to Bidders:

a. Dimensional and weight information on components and assemblies.

b. A list of any requested exceptions to the Contract Documents.

c. Catalog information and cuts.

d. Manufacturer's specifications, including materials description.

e. Performance data as applicable.

f. Field interface requirements for each component, such as, but not limited to water and drain connections, electricity (field wiring requirements), air supply connections, ventilation, etc.

g. Horsepower of all motors supplied.

h. Functional descriptions of any packaged instrumentation and control systems.

i. List of parameters monitored, controlled, or alarmed.

j. Addresses and phone numbers of nearest service center and a listing of the manufacturer’s or supplier’s services available at this location.

k. Addresses and phone numbers for the nearest parts warehouse capable of providing full parts replacement and/or repair service.

l. A list of the manufacturer’s five (5) most recent domestic (USA) installations with similar size equipment in service. Include contact name, telephone number, mailing address, and names of Engineer, Owner, and installing Contractor.

m. Description of structural, electrical, mechanical, and all other changes or modifications necessary to adapt the equipment or system to the arrangement shown and/or functions described in the Specifications and/or Drawings.

n. Any additional specific requirements listed in the referenced equipment specification.

4. Failure to include all listed information with the submittal shall result in a determination that the non-named equipment manufacturer is not considered “or equal" and, therefore, not acceptable.

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5. The Engineer and Owner will determine if the non-named manufacturer’s equipment will be added as a named manufacturer (“or equal”) in the referenced equipment specification. Final determination is at the sole discretion of the Engineer and Owner, and will occur prior to the Bid opening. There will be no process to appeal this determination.

6. If the Engineer and Owner determine that any non-named manufacturer is considered equivalent (“or-equal”) to the named manufacturer(s), the referenced equipment specification will be revised by Addendum to include additional named manufacturers. However, addition of a manufacturer by addendum shall not relieve the Bidder of full responsibility for any facility redesign or other costs required to install the equipment. The manufacturer/ supplier and Bidder shall comply with the following during construction:

a. Manufacturer/Supplier shall include in his quote to potential Bidders all additional construction costs (mechanical, architectural, structural, electrical, and engineering redesign costs) associated with the proposed equipment. The Bid shall also include all paid licenses necessary for the use of the proposed equipment, if required by the manufacturer.

b. Any redesign associated with the proposed equipment shall be prepared by the Engineer. Reimbursement for engineering redesign shall be based on the Engineer's raw salary costs times a multiplier of 3.15 plus any direct, non-labor expenses such as travel, per diem, or reproduction services. The Owner will bill the Contractor monthly based on the Engineer's invoice to the Owner. The Contractor shall reimburse the Owner, who will in turn reimburse the Engineer, within 30 days of receipt of the Owner's billing.

Non-payment within 30 days shall constitute grounds for the Owner to withhold partial payment to Contractor.

c. Bidder agrees that delays caused by redesign necessary for the proposed equipment shall not constitute grounds for a contract modification, change order, claim, or contract time extension.

7. The Major Equipment Table is provided with blank spaces for an “or equal” equipment item approved by the Engineer and named via addendum during the Bid period, in accordance with Article 11 of the Instructions to Bidders.

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Major Equipment Table

(Circle Only One Supplier / Manufacturer Named in the Reference Specification Section)

Specification Equipment Manufacturer to be Provided

26 29 23 Electrical Equipment (Including Low Voltage Variable Frequency Motor Controllers)

• Schneider Electric (Square-D)

• Rockwell (Allen-Bradley)

• Toshiba

26 32 13 Diesel Engine Generator Set

• CAT

• Cummins

• MTU Onsite Energy

40 61 13 I&C System Subcontractor

• CITI

• MR Systems

• Revere

• RoviSys

43 11 19 Odor-Control Centrifugal Fan

• Duall

43 23 57 Progressive Cavity Pump

• Robbins and Myers

• Netzsch

• Seepex

43 25 13 Submersible Solids-Handling Pumps

• Flygt

43 41 45 FRP Chemical Storage Tanks

• Justin Tanks

• Plas-Tanks Industries

• Belco Manufacturing

• An-Cor Plastics

44 31 31 Bio-Trickling Filter Odor Control System

• BioRem

• Evoqua

46 33 45 Peristaltic Hose Metering Pumps

• Blue White

• Verderflex

• Watson Marlow

46 43 21.13 Circular Secondary Clarifier Equipment

• Ovivo USA

• Walker Process

Copyright © 2013 National Society of Professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. Page 10

ARTICLE 8 – DEFINED TERMS

8.01 The terms used in this Bid with initial capital letters have the meanings stated in the Instructions to Bidders, the General Conditions, and the Supplementary Conditions.

ARTICLE 9 – BID SUBMITTAL

BIDDER: [Indicate correct name of bidding entity]

By:

[Signature]

[Printed name]

(If Bidder is a corporation, a limited liability company, a partnership, or a joint venture, attach evidence of authority to sign.)

Attest:

[Signature]

[Printed name]

Title:

Submittal Date:

Address for giving notices:

Telephone Number:

Fax Number:

Contact Name and e-mail address:

Bidder’s License No.:

(where applicable)

NOTE TO USER: Use in those states or other jurisdictions where applicable or required.

ATTACHMENT #2

30831-061 01 52 00-1 TWELVE MILE CREEK WRF

9.0 MGD EXPANSION PROJECT

SECTION 01 52 00

CONSTRUCTION FACILITIES

PART 1 – GENERAL

1.01 SUMMARY

A. Contractor shall provide construction facilities for performance of the Work, including the following:

1. Contractor’s field office, sheds, and storage containers that shall be erected within

30 days of Notice to Proceed on the Project.

2. Engineer’s field office provided with specified temporary utility services that shall be erected within 30 days of Notice to Proceed on the Project.

3. Project sign and panel that shall be erected within 21 days of Notice to Proceed on the Project.

1.02 FACILITY DESCRIPTION

A. Contractor’s Field Office, Sheds, and Storage:

1. Contractor shall provide and maintain a field office at the Site, including temporary utility services specified.

2. Size and Furnishings: As required by Contractor.

3. Features: Exterior Contractor identification sign, night lighting for security, and temporary utilities specified in Section 01 51 00 − Temporary Utilities.

4. Location: As shown on the Contract Documents.

5. Contractor shall provide and maintain one set of Contract Documents, latest approved Shop Drawings, Field Orders, request for interpretations, clarification notices, Work Change Directives, proposal requests, Change Proposals, Change

Orders, and other pertinent Project related correspondence.

B. Engineer’s Field Office:

1. Contractor shall provide Engineer’s field office for Resident Project Representative

(RPR).

2. Requirements:

a. Separate structure with a minimum of 720 sq ft of floor area.

30831-061 01 52 00-2 TWELVE MILE CREEK WRF

b. Separate covered porch with a minimum of 72 sq ft of floor area at main entrance to structure. Cover shall have separate roof and rainproof seal to main structure.

c. Doors and windows provided with locking devices and hardware to prevent unauthorized entry. Door keys shall be provided to Engineer for the duration of the Project. Door keys will be returned to Contractor following completion of Project.

d. Functional, totally enclosed restroom and mirror shall be provided.

e. Minimum temporary utilities requirements:

1) Heating: Maintain 68°F in winter.

2) Cooling: Maintain 70°F in summer.

3) Interior electrical outlets: Minimum one outlet per wall of structure

4) Electrical service: Adequate temporary electrical service for fully functional field office

5) Individual, direct high-speed internet service (DSL or cable), at minimum 50 Mbps up and down Internet speed, with hardwired networking up to four persons and Wi-Fi for exclusive use by the

Engineer.

6) Potable water service to water closet and lavatory (including hot water hookup).

7) Interior and exterior lighting: Conforms to Section 01 51 00 −

Temporary Utilities and as specified in this Section.

3. Furnishing:

2 Flat top desk, 2-1/2 x 5 feet, with drawers at each end

1 Plywood drawing table, 3 x 6 feet tilt top with drafting stool

12 Straight chairs

Four-drawer, legal size steel filing cabinets with lock and key (HON

210P Series full-suspension files)

1 23-gallon metal or heavy-duty plastic waste baskets with lids

3 28-quart metal or heavy-duty plastic waste baskets

1 Hanging drawing racks with appurtenances

30831-061 01 52 00-3 TWELVE MILE CREEK WRF

2 Wall-mounted fire extinguishers

1 Bookcase with 4 shelves, 3 feet wide

3 Metal/plastic office folding tables, 30 x 60 inches (minimum)

1 Metal/plastic office folding table, 30 x 96 inches (minimum)

Steel storage cabinets (72” H x 36” W x 24” D) with four adjustable shelves and locks

First aid cabinet (conforms with OSHA requirements for construction site of up to five people)

2 Tilt/swivel type desk chairs

1 21 cu. ft. capacity refrigerator

1 1.4 cu. ft. countertop microwave with double-oven cart

1 Coffee pot capable of operating with K-Cups or coffee grounds.

1 Hewlett Packard Office Jet T45 Color All-in-One Machine, or equal

Office hard drive (1 TB minimum) and router networked for up to 4 personnel with high speed internet and 4-in-1 printer

4. Exterior Engineer identification sign: 24” x 36” plywood sign painted white with blue, centered 3-inch high lettering with the following inscription:

Field Office

Hazen and Sawyer

Office Location

5. Location: As shown on the Contract Documents.

6. Consumables: Contractor shall provide consumables and supplies for the

Engineer’s Field Office including, but not limited to, waste basket heavy-duty liners, floor entry mats, mud-cleaning brushes, paper towels, toilet paper, printer ink, copying machine paper (all sizes), etc., for the duration of the Contract.

7. Cleaning services: Contractor shall provide qualified, professional cleaning services to clean Engineer’s field office a minimum of two times per week for the duration of the Project.

8. Contractor shall respond and address maintenance issues that occur at the

Engineer’s field office with 24 hours notification.

C. Project Identification Sign:

30831-061 01 52 00-4 TWELVE MILE CREEK WRF

1. Contractor shall provide in accordance to this Section and project sign template included at end of this Section.

2. Contractor shall maintain project identification sign for the duration of the Contract.

3. Contractor shall remove and dispose of project identification sign at the completion of the Project when notified by the Engineer.

4. Contractor shall not receive additional payment for deterioration or replacement of names and other pertinent sign information throughout the duration of the Project.

1.03 SUBMITTALS

A. Action/Informational Submittals: Project identification sign layout, details, and materials of construction.

PART 2 – PRODUCTS

2.01 COMPONENTS

A. Project Identification Sign

1. Sign Panel: 3/4-inch thickness (minimum) marine plywood rabbeted in a 2” x 4” wood frame. Panel shall be fastened to sign supports with six 3/8” dia galvanized bolts, nuts and washers (minimum).

2. Sign Supports: Two, 4” x 4” treated wood posts.

3. Fasteners and Hardware: Galvanized

4. Painting: Supports, trim and back of sign panel shall be painted with two coats

(minimum) of same paint for sign face. Paint shall be exterior grade paint, suitable for wood application and in accordance with Section 09 90 00 − Painting.

PART 3 – EXECUTION (NOT USED)

END OF SECTION

30831-061 01 52 00-5 TWELVE MILE CREEK WRF

30831-061 01 52 00-6 TWELVE MILE CREEK WRF

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ATTACHMENT #3

30831-061 03 40 10-1 12 MILE CREEK

SECTION 03 40 10

POLYMER PRECAST CONCRETE MANHOLES

PART 1 – GENERAL

1.01 REQUIREMENTS

A. The Contractor shall construct all polymer precast concrete manholes and vaults as required in the Contract Documents, including all appurtenances necessary to make a complete installation.

1.02 RELATED WORK SPECIFIED ELSEWHERE

A. Section 33 05 61 − Utility Structures

B. Section 05 10 00 − Metal Materials

1.03 REFERENCE SPECIFICATIONS, CODES AND STANDARDS

A. Without limiting the generality of other requirements of these Specifications, all work specified herein shall conform to the applicable requirements of the following documents. All referenced specifications, codes, and standards refer to the most current issue.

1. ASTM D 6783 – Standard Specification for Polymer Concrete Pipe

2. ASTM D 2584 – Test Method for Ignition Loss of Cured Reinforced Resins.

3. ASTM C 33 – Standard Specification for Concrete Aggregates

4. ASTM C 478 – Standard Specification for Precast Reinforced Concrete Manhole

Sections

5. ASTM C 443 – Standard Specification for Joints for Concrete Pipe and Manholes using Rubber Gaskets

6. ASTM C 580 – Standard Test Method for Flexural Strength and Modulus of

Elasticity of Chemical-Resistant Mortars, Grouts, Monolithic Surfacing, and

Polymer Concretes

7. ASTM C 923 – Standard Specification for Resilient Connectors between

Reinforced Concrete Manhole Structures, Pipes, and Laterals

8. ASTM C 497 – Standard Test Methods for Concrete Pipe, Manhole Sections, or

Tile

TWELVE MILE CREEK WRF

30831-061 03 40 10-2 12 MILE CREEK

1.04 SUBMITTALS

A. The Contractor shall submit the following for review in accordance with Section 01 33 00

− Submittal Procedures. Submittal shall be made at least 45 days prior to constructing manhole.

1. A list of the design criteria used by the manufacturer for all manufactured, precast items.

2. Structural design calculations, showing the design loads and stresses on the manhole, shall be submitted. Calculations shall be signed and sealed by a

Professional Engineer registered in the in the state or commonwealth in which the project is located. Design calculations for precast manholes and vaults shall include confirmation structures adequately resist flotation when totally empty and subjected to groundwater full height of structure.

3. Certified reports for all lifting inserts, indicating allowable design loads.

4. Information on lifting and erection procedures.

5. Shop drawings for all precast concrete items showing all dimensions, locations, and type of lifting inserts, and details of reinforcement and joints. Drawings shall include manhole number, location, rim and invert elevations, dimensions, reinforcing details, joint details, and component parts.

6. References of five (5) previous polymer concrete manhole projects including scope performed within the last three (3) years, with both owner and contractor for reference.

1.05 QUALITY ASSURANCE

A. All manufactured precast polymer concrete units shall be produced by an experienced manufacturer regularly engaged in the production of such items. All manufactured precast polymer concrete and site-cast units shall be free of defects, spalls, and cracks.

Care shall be taken in the mixing of materials, casting, curing, and shipping to avoid any damage. The Engineer may elect to examine the units at the casting yard or upon arrival at the site. The Engineer shall have the option of rejecting any of the precast work that does not meet the requirements specified herein or on the Drawings. All rejected work shall be replaced at no additional cost to the Owner.

A. Departure from and return to true vertical from the established manhole / wetwell alignment shall not exceed ½ inch per 10 feet, up to 2 inches for the total manhole depth.

B. Manufacturing tolerances shall be per ASTM C 478.

30831-061 03 40 10-3 12 MILE CREEK

PART 2 – PRODUCTS

2.01 MANUFACTURERS

A. Polymer concrete manholes shall be manufactured by Armorock, LLC, U.S. Composite

Pipe, Inc. (Division of Thompson Pipe Group), RockHardscp by SolidCast Polymer

Technology, or equal.

2.02 POLYMER CONCRETE MANHOLES

A. Polymer Concrete Manhole risers, cones, flat lids, grade rings and manhole base sections shall be designed by manufacturer to meet the requirements of ASTM C 478 with allowable compositional and sizing differences as designed by the polymer concrete manufacturer.

B. Manholes shall have engineered and rated lifting devices that shall not penetrate through the wall.

C. Materials shall conform to the following:

1. Resin: The manufacturer shall use only polyester or vinyl ester resin systems designed for use with this application. Resin content shall be a minimum of 7% by weight as determined by test method ASTM D 2584. The resin shall have a minimum deflection temperature of 158° F when tested at 264 psi (1.820 mPa) following test method ASTM D 648.

2. Filler: All aggregate, sand and quartz powder shall meet the requirements of

ASTM C 33, where applicable.

3. Additives: Resin additives, such as curing agents, pigments, dyes, fillers, and thixotropic agents, when used, shall not be detrimental to the integrity of the manhole.

4. Elastomeric Gaskets: Gaskets shall be suitable for the service intended. All gaskets shall meet the requirement of ASTM C 443.

D. Provide base riser section with monolithic floors, unless shown otherwise.

E. Section Joints: Round manhole components shall be sealed with an elastomeric sealing gasket as the sole means to maintain joint watertightness. Both the gasket material and the manhole joint shall meet the requirements of ASTM C443. Round manholes shall utilize spigot and bell type joints incorporating either a confined O-ring or single step profile joint. Square and rectangular structures shall utilize a ship-lap joint and be sealed with a butyl rope sealant per ASTM C990.

F. Construct riser sections for polymer concrete manholes from standard polymer concrete manhole sections of the diameter indicated on drawings. Use various lengths of polymer

30831-061 03 40 10-4 12 MILE CREEK

concrete manhole sections in combination to provide correct height with the fewest joints.

G. Design wall sections for depth and loading conditions with wall thickness as designed by polymer concrete manufacturer.

H. Provide top of structures to support AASHTO HS-20 loading or loads as required.

Provide adequate thickness and means for embedding cast iron frame covers or hatches, as indicated on drawings.

I. Pipe to Manhole Connections: Pipes shall be directly connected to all structures using resilient flexible pipe to manhole connector per ASTM C923. All connectors shall be watertight. Cold joint pipe stub grouting shall not be allowed unless shown on plans as such. In cases where cold joint pipe stubs are shown, they shall be grouted using a corrosion resistant grout and rubber water stop grout ring.

2.03 DESIGN

A. Manholes shall be designed to withstand all loads as determined by precast manhole manufacturer and stipulated herein. Dead loads shall include overburden load, soil side pressure and hydrostatic loading conditions. Manhole submittals shall be sealed by a

Professional Engineer currently licensed in the state or commonwealth where the project is located.

B. Manhole wall thickness shall be designed to resist hydrostatic pressures with a minimum safety factor of 2.0 for full depth conditions from grade to invert. In no case shall the wall thickness be less than 4 inches.

C. Minimum clearance between wall penetrations and joints shall be per manufacturer’s requirements.

D. Reinforcement may be either steel or FRP Bar:

1. Acid resistant reinforcement (FRP Bar) shall be in accordance with ACI 440.1R as applicable for polymer concrete design. If FRP reinforcement is used, design of reinforcement shall follow section 14.4 of ASTM C478.

2. Steel reinforcement shall be per ASTM C 478.

3. Hoop reinforcement, steel or FRP, shall only be allowed in riser diameters of 48” which have no openings in them per section 14.5 of ASTM C478. Larger diameter manholes shall not use hoop reinforcement.

E. Manholes with FRP reinforcement shall have a maximum depth of 35 feet.

30831-061 03 40 10-5 12 MILE CREEK

F. Manholes shall be designed with sufficient bottom anchorage and side friction to resist buoyancy. Field cast floatation collars are acceptable if included in the design by the

Professional Engineer including the means of attaching the collar to the manhole .

G. The manhole shall be manufactured in one class of load rating. This class shall be

AASHTO HS-20 wheel load (minimum 16,000 pounds dynamic wheel load).

H. Each polymer concrete manhole component shall be free of all defects, including indentations, cracks, foreign inclusions, and resin starved areas that detrimentally affect the strength and serviceability of the component part. Cosmetic defect shall not be cause for rejection. The nominal internal diameter of manhole components shall not vary more than 2%.

I. Marking and Identification: Each manhole shall be marked with the following information:

1. Manufacturer’s name or trademark

2. Manufacturer’s location

3. Production Date

J. Manhole top slabs shall accommodate fall protection anchor points as indicated in

Contract Drawings.

2.04 GROUT

A. All materials needed for grouting and patching will be a polyester mortar compound provided by the manufacturer or an approved equal by the manufacturer.

PART 3 – EXECUTION

3.01 HANDLING, TRANSPORTING AND STORING

A. Precast members shall not be transported from the casting yard until ready, unless otherwise permitted by the Engineer.

B. No precast member shall be transported from the plant to the job site prior to approval of that member by the plant inspector. This approval will be stamped on the member by the plant inspector.

C. During handling, transporting, and storing, precast polymer concrete members shall be lifted and supported only at the lifting or supporting points as indicated on the shop drawings. Properly rated slings and spreader bar shall be used for lifting. The type of rigging used shall be per the manufacturer’s recommendation.

D. All precast members shall be stored on solid, unyielding, storage blocks in a manner to prevent torsion, objectionable bending, and contact with the ground.

30831-061 03 40 10-6 12 MILE CREEK

E. Precast members shall not be used as storage areas for other materials or equipment.

F. Precast members damaged while being handled or transported will be rejected or shall be repaired in a manner approved by the Engineer.

3.02 INSTALLATION

A. Erection shall be carried out by the manufacturer or under his supervision using labor, equipment, tools, and materials required for proper execution of the work.

B. Contractor shall prepare all bearing surfaces to a true and level line prior to erection. All supports of the precast members shall be accurately located and of required size and bearing materials.

C. Installation of the precast members shall be made by leveling the top surface of the assembled units keeping the units tight and at right angles to the bearing surface.

D. In no case shall concentrated construction loads, or construction loads exceeding the design loads, be placed on the precast members. In no case shall loads be placed on the precast members prior to operations associated with erection.

E. No Contractor, Subcontractor or any of his employees shall arbitrarily cut, drill, punch or otherwise tamper with the precast members.

F. Precast members damaged while being erected will be rejected or shall be repaired in a manner approved by the Engineer.

G. Jointing:

1. Sealing surfaces and joint components shall be inspected for damage and cleaned of all debris.

2. Apply joint lubricant to elastomeric seals. Use only lubricants approved by the manufacturer.

H. Placement and compaction of surrounding backfill material shall be applied to provide sufficient and equal side pressure on the manhole. Backfill and compaction shall be accordance with Section 31 00 01 – Earthwork.

3.03 FIELD TESTING

A. Structure shall be tested in accordance with Section 01 88 16 – Watertightness Testing of Concrete Structures.

END OF SECTION

ATTACHMENT #4

30831-061 40 05 59.33-1 TWELVE MILE CREEK WRF

SECTION 40 05 59.33

CAST-IRON SLIDE GATES

PART 1 – GENERAL

1.01 THE REQUIREMENT

A. The Contractor shall furnish and install all cast-iron slide gates complete with all accessories, special tools, spare parts, mountings, anchor bolts and other appurtenances as specified herein, as shown on the Drawings, and as required for a complete and operating installation. The gates and appurtenances shall be supplied in accordance with the latest edition of ANSI/AWWA C560 Cast-Iron Slide Gates, except as modified herein.

B. Equipment shall be provided in accordance with the requirements of Section 46 00 00 −

Equipment General Provisions and Section 40 05 00 − Basic Mechanical Requirements.

C. Refer to Section 40 06 20 − Process Pipe, Valve, and Gate Schedules for further detail on gate location, dimensions, design criteria, number required, etc.

D. Manual and electric gate actuators (operators) shall be as specified in Section 40 05 58

− Gate Operators and Electric Gate Actuators.

E. The Contractor shall…