Lift_Station_Point_Repairs_and_Improvements.pdf

v. 7.2024 Procurement Division PO Box 4748 33758-4748 Clearwater FL 727-562-4630

INVITATION TO BID

25-0006-UT

LIFT STATION POINT REPAIRS AND IMPROVEMENTS

INSTRUCTIONS TO BIDDERS

1. COPIES OF BIDDING DOCUMENTS

1.1. Bid Documents, any attachments and addenda are available for download at: https://procurement.opengov.com/portal/myclearwater/projects/181310.Bidding Documents may include, but are not limited to, plans, specifications, bond forms, contract form, affidavits, bid/proposal form, and addendums.

1.2. Complete sets of Bidding Documents must be used in preparing bids. Neither the City nor the

Engineer shall be liable for errors or misinterpretations resulting from the use of incomplete sets of

Bidding Documents, by Bidders, sub-bidders, or others.

2. QUALIFICATION OF BIDDERS

2. 1 Each prospective Bidder must pre-qualify to demonstrate, to the complete satisfaction of the City of Clearwater, that the Bidder has the necessary facilities, equipment, ability, financial resources and experience to perform the work in a satisfactory manner. An application package for pre-qualification may be obtained by contacting the City of Clearwater, Engineering Division by phone at (727) 562-

4750. Pre-qualification requirement information is also available on the City of Clearwater Website at address:

www.myclearwater.com/government/city-departments/engineering/construction-management.

Contractors wanting to pre-qualify to bid on a project as a General Contractor must do so two weeks (ten workdays) prior to the bid opening date. Bidders currently pre-qualified by the City do not have to make reapplication. It is the Contractor’s responsibility to confirm pre-qualification status before a Bid Opening.

The Contractor shall include copies of their current license/registration with the State of

Florida and Pinellas County (if applicable) with their bid response.

3. EXAMINATION OF CONTRACT DOCUMENTS AND SITE

3.1.It is the responsibility of each Bidder, before submitting a Bid, to (a) examine the Contract

Documents thoroughly; (b) visit the site to become familiar with local conditions that may in any manner affect cost, progress, performance or furnishing of the work; (c) consider and abide by all applicable https://procurement.opengov.com/portal/myclearwater/projects/181310 http://www.myclearwater.com/government/city-departments/engineering/construction-management http://www.myclearwater.com/government/city-departments/engineering/construction-management

v. 7.2024 2 federal, state and local laws, ordinances, rules and regulations; and (d) study and carefully correlate

Bidder's observations with the Contract Documents, and notify Engineer in writing of all conflicts, errors or discrepancies in the Contract Documents.

3.2.For the purposes of bidding or construction, bidder may rely upon the accuracy of the technical data contained in reports of explorations and tests of subsurface conditions at the site which have been utilized by the Engineer in the preparation of the Contract Documents, but not upon non-technical data, interpretations or opinions contained therein or for the completeness thereof. Drawings relating to physical conditions of existing surface and subsurface conditions (except Underground Facilities) which are at or contiguous to the site and which have been utilized by the Engineer in preparation of the Contract Documents, may be relied upon by Bidder for accuracy of the technical data contained in such drawings but not upon the completeness thereof for the purposes of bidding or construction.

3.3.Information and data reflected in the Contract Documents with respect to Underground Facilities at or contiguous to the site are based upon information and data furnished to the City and Engineer by owners of such Underground Facilities or others, and the City does not assume responsibility for the accuracy or completeness thereof unless expressly provided in the Contract Documents.

3.4.Provisions concerning responsibilities for the adequacy of data furnished to prospective Bidders on subsurface conditions, Underground Facilities, other physical conditions, possible conditions, and possible changes in the Contract Documents due to differing conditions appear in the General

Conditions.

3.5. Before submitting a Bid, each Bidder shall, at Bidder's own expense, make or obtain any additional examinations, investigations, explorations, tests and studies and obtain any additional information and data which pertain to the physical conditions (surface, subsurface and Underground Facilities) at or contiguous to the site or otherwise which may affect cost, progress, performance or furnishing the work in accordance with the time, price and other terms and conditions of the Contract Documents.

3.6. On request in advance, City will provide each Bidder access to the site to conduct such explorations and tests at Bidder's own expense as each Bidder deems necessary for submission of a

Bid. Bidder shall fill all holes and clean up and restore the site to its former condition upon completion of such explorations and tests.

3.7. The lands upon which the Work is to be performed, rights-of-way and easements for access thereto and other lands designated for use by the Contractor in performing the Work are identified in the Contract Documents. All additional lands and access thereto required for temporary construction facilities or storage of materials and equipment are to be provided by the Contractor. Easements for permanent structures or permanent changes in existing structures are to be obtained and paid for by the City unless otherwise provided in the Contract Documents.

3.8. The submission of a Bid will constitute an unequivocal representation by the Bidder that the Bidder has complied with every requirement of these Instructions to Bidders and that, without exception, the

Bid is premised upon performing and furnishing the Work required by the Contract Documents by such means, methods, techniques, sequences or procedures of construction as may be indicated in or required by the Contract Documents, and that the Contract Documents are sufficient in scope and detail to indicate and convey understanding of all terms and conditions of performance and furnishing of the work.

4. INTERPRETATIONS AND ADDENDA

4.1. All questions as to the meaning or intent of the Contract Documents are to be directed in writing to the Engineer. Interpretations or clarifications considered necessary by the Engineer in response to such

v. 7.2024 3 questions will be issued by Addenda, via OpenGov. Questions received after the time frame specified on the pre-bid meeting agenda, prior to the date for opening of Bids, may not be answered. Only information provided by formal written Addenda will be binding. Oral and other interpretations of clarifications will be without legal effect.

4.2. Addenda may also be issued to modify the Bidding Documents as deemed advisable by the City or

Engineer.

5. BID SECURITY OR BID BOND

5.1. Each Bid must be accompanied by Bid Security made payable to the City of Clearwater in an amount equal to ten percent (10%) of the Bidder’s maximum Bid price and in the form of a certified or cashier’s check or a Proposal/Bid Bond (on form provided in Section V) issued by a surety meeting the requirements of the General Conditions.

5.2. The Bid Security of the Successful Bidder will be retained until such Bidder has executed the

Agreement and furnished the required Payment and Performance bonds, whereupon the Bid Security will be returned. If the Successful Bidder fails to execute, deliver the Agreement and furnish the required Bonds within ten (10) days after the award of contract by the City Council, the City may annul the bid and the Bid Security of the Bidder will be forfeited. The Bid Security of any Bidder whom the

City believes to have a reasonable chance of receiving the award may be retained by the City until the successful execution of the agreement with the successful Bidder or for a period up to ninety (90) days following bid opening. Security of other Bidders will be returned approximately fourteen (14) days after the Bid Opening.

5.3. The Bid Bond shall be issued in the favor of the City of Clearwater by a surety company qualified to do business in, and having a registered agent in, the State of Florida.

6. CONTRACT TIME

6.1. The number of consecutive calendar days within which the work is to be completed is set forth in the Technical Specifications.

7. LIQUIDATED DAMAGES

7.1. Provisions for liquidated damages are set forth in the Contract Agreement, Section V.

8. SUBSTITUTE MATERIAL AND EQUIPMENT

8.1. The contract, if awarded, will be on the basis of material and equipment described in the Drawings or specified in the Specifications without consideration of possible substitute or "or equal" items.

Whenever it is indicated in the Drawings or specified in the Specifications that a substitute or "or equal" item may be furnished or used, application for its acceptance will not be considered by the Engineer until after the effective date of the Contract Agreement. The procedure for submittal of any such application is described in the General Conditions and as supplemented in the Technical

Specifications.

9. SUBCONTRACTORS

9.1. If requested by the City or Engineer, the Successful Bidder, and any other Bidder so requested, shall, within seven (7) days after the date of the request, submit to the Engineer an experience statement with pertinent information as to similar projects and other evidence of qualification for each

Subcontractor, supplier, person and organization to be used by the Contractor in the completion of the

Work. The amount of subcontract work shall not exceed fifty percent (50%) of the Work except as may

v. 7.2024 4 be specifically approved by the Engineer. If the Engineer, after due investigation, has reasonable objection to any proposed Subcontractor, supplier, other person or organization, he may, before recommending award of the Contract to the City Council, request the Successful Bidder to submit an acceptable substitute without an increase in Contract Price or Contract Time. If the Successful Bidder declines to make any such substitution, the City may award the contract to the next lowest and most responsive Bidder that proposes to use acceptable Subcontractors, Suppliers, and other persons and organizations. Declining to make requested substitutions will not constitute grounds for sacrificing the

Bid Security to the City of any Bidder. Any Subcontractor, supplier, other person or organization listed by the Contractor and to whom the Engineer does not make written objection prior to the recommendation of award to the City Council will be deemed acceptable to the City subject to revocation of such acceptance after the Effective Date of the Contract Agreement as provided in the

General Conditions.

9.2. No Contractor shall be required to employ any Subcontractor, supplier, person, or organization against whom he has reasonable objection.

10. BID/PROPOSAL FORM

10.1. The Bid/Proposal Form is included with the Contract Documents and shall be printed in ink or typewritten. All blanks on the Bid/Proposal Forms must be completed. Unit Prices shall be to no more than two decimal points in dollars and cents. The Bidder must state in the Bid/Proposal Form in words and numerals without delineation’s, alterations or erasures, the price for which they will perform the work as required by the Contract Documents. Bidders are required to bid on all items in the

Bid/Proposal form. The lump sum for each section or item shall be for furnishing all equipment, materials, and labor for completing the section or item as per the plans and contract specifications.

Should it be found that quantities or amounts shown on the plans or in the proposal, for any part of the work, are exceeded or should they be found to be less after the actual construction of the work, the amount bid for each section or item will be increased or decreased in direct proportion to the unit prices bid for the listed individual items.

10.2. Bids by corporations shall be executed in the corporate name by the president or a vice-president

(or other corporate officer accompanied by evidence of authority to sign) and the corporate seal shall be affixed. The corporate address and state of incorporation shall be shown below the Signature. If requested, the person signing a Bid for a corporation or partnership shall produce evidence satisfactory to the City of the person's authority to bind the corporation or partnership.

10.3. Bids by partnerships shall be executed in the partnership name and signed by a general partner, whose title shall appear under the signature and the official address of the partnership shall be shown below the signature.

10.4. All names shall be typed or printed below the signature.

11. SUBMISSION OF BIDS

11.1. It is recommended that bids are submitted electronically through the City's e-Procurement Portal located at https://procurement.opengov.com/portal/myclearwater. By way of the e-Procurement Portal, responses will be locked and digitally encrypted until the submission deadline passes.

Sealed Bids not submitted electronically shall be submitted at or before the time and at the place indicated in the Advertisement for Bids and shall be submitted in a sealed envelope with the project name and number on the bottom left-hand corner. If forwarded by mail, the Bid shall be enclosed in another envelope with the notation "Bid Enclosed" on the face thereof and addressed to the City of Clearwater, https://procurement.opengov.com/portal/myclearwater

v. 7.2024 5 attention Purchasing Manager. Bids will be received at the office indicated in the Advertisement until the time and date specified. Bids in any other form will not be accepted.

E-mail or fax submissions will not be accepted.

No responsibility will attach to the City of Clearwater, its employees or agents for premature opening of a bid that is not properly addressed and identified.

11.2. If submitting a hard copy, the sealed bid envelope shall contain, but not be limited to, the

Proposal/Bid Bond and corresponding Power of Attorney, Affidavit, Non-Collusion Affidavit, Proposal

(pages one and two), Addendum Sheet, Bidder’s Proposal, Scrutinized Companies and Business

Operations with Cuba and Syria Certification Form, and E-Verify form.

12. MODIFICATION AND WITHDRAWAL OF BIDS

12.1. For bids submitted electronically, vendors may use the "Unsubmit Response" button located on the

Response Details page of their submission. Responses may be resubmitted once they have been edited or modified as needed.

For mailed in or hand delivered bids, written requests to modify or withdraw the bid received by the City prior to the scheduled opening time will be accepted and will be corrected after opening. Written requests must be addressed and labeled in the same manner as the bid and marked as a MODIFICATION or

WITHDRAWAL of the bid.

No oral requests will be allowed.

Requests for withdrawal after the bid opening will only be granted upon proof of undue hardship and may result in the forfeiture of any bid security. Any withdrawal after the bid opening shall be allowed solely at the City’s discretion.

13. REJECTION OF BIDS

13.1. To the extent permitted by applicable State and Federal laws and regulations, the City reserves the right to reject any, and all Bids, and to waive any, and all informalities. Grounds for the rejection of a bid include but are not limited to a material omission, unauthorized alteration of form, unauthorized alternate bids, incomplete or unbalanced unit prices, or irregularities of any kind. Also, the City reserves the right to reject any Bid if the City believes that it would not be in the best interest of the public to make an award to that Bidder, whether because the Bid is not responsive or the Bidder is unqualified or of doubtful financial ability or fails to meet any other pertinent standard or criteria established by the City. The City reserves the right to decide which bid is deemed to be the lowest and best in the interest of the public.

14. DISQUALIFICATION OF BIDDER

14.1. Any or all bids will be rejected if there is any reason for believing that collusion exists among the bidders, the participants in such collusion will not be considered in future proposals for the same work.

Each bidder shall execute the Non-Collusion Affidavit contained in the Contract Documents.

15. OPENING OF BIDS

15.1. Bids will be opened and read publicly at the location and time stated in the Advertisement for

Bids. Bidders are invited to be present at the opening of bids.

16. LICENSES, PERMITS, ROYALTY FEES AND TAXES

v. 7.2024 6

16.1. The Contractor shall secure all licenses and permits (and shall pay all permit fees) except as specifically stated otherwise in the Technical Specifications. The Contractor shall comply with all

Federal and State Laws, County and Municipal Ordinances and regulations, which in any manner effect the prosecution of the work. City of Clearwater building permit fees and impact fees will be waived except as specifically stated otherwise in the Technical Specifications.

16.2. The Contractor shall assume all liability for the payment of royalty fees due to the use of any construction or operation process, which is protected by patent rights except as specifically stated otherwise in the Technical Specifications. The amount of royalty fee, if any, shall be stated by the

Contractor.

16.3. The Contractor shall pay all applicable sales, consumer, use, and other taxes required by law.

The Contractor is responsible for reviewing the pertinent State Statutes involving the sales tax and sales tax exemptions and complying with all requirements.

16.4. The City of Clearwater is exempt from state sales tax on materials purchased by the City and incorporated into the WORK. The City of Clearwater reserves the right to implement the Owner Direct

Purchase (ODP) Option, as may be indicated in the Scope of Work Description in Section IV –

Technical Specifications and as defined in Section III – General Conditions.

17. IDENTICAL TIE BIDS/VENDOR DRUG FREE WORKPLACE

17.1. In accordance with the requirements of Section 287.087 Florida Statutes regarding a Vendor

Drug Free Workplace, in the event of identical tie bids, preference shall be given to bidders with drug-free workplace programs. Whenever two or more bids which are equal with respect to price, quality, and service are received by the City for the procurement of commodities or contractual services, a bid received from a business that certifies that it has implemented a drug-free workplace program shall be given preference in the award process. Established procedures for processing tie bids will be followed if none or all of the tied bidders have a drug-free workplace program. In order to have a drug-free workplace program, a contractor shall supply the City with a certificate containing the following six statements and the accompanying certification statement:

(1)Publish a statement notifying employees that the unlawful manufacture, distribution, dispensing, possession, or use of a controlled substance is prohibited in the workplace and specifying the actions that will be taken against employees for violations of such prohibition.

(2) Inform employees as to the dangers of drug abuse in the workplace, the business's policy of maintaining a drug-free workplace, any available drug counseling, rehabilitation, and employee assistance programs, and the penalties that may be imposed upon employees for drug abuse violations.

(3) Give each employee engaged in providing the commodities or contractual services that are under bid a copy of the statement specified in subsection (1).

(4) In the statement specified in subsection (1), notify the employees that, as a condition of working on the commodities or contractual services that are under bid, the employee will abide by the terms of the statement and will notify the employer of any conviction of, or plea of guilty or nolo contendere to, any violation of chapter 893, or of any controlled substance law, of the United States, or of any state, for a violation occurring in the workplace no later than five (5) days after such conviction.

(5) Impose a sanction on or require the satisfactory participation in a drug abuse assistance or rehabilitation program if such is available in the employee's community, by any employee who is so convicted.

v. 7.2024 7

(6) Make a good faith effort to continue to maintain a drug-free workplace through implementation of this section.

I certify that this firm does/does not (select only one) fully comply with the above requirements.

18. AWARD OF CONTRACT

18.1. Discrepancies between words and figures will be resolved in favor of words. Discrepancies in the multiplication of units of work and unit prices will be resolved in favor of the unit prices.

Discrepancies between the indicated sum of any column of figures and the correct sum thereof will be resolved in favor of the correct sum.

18.2. In evaluating the Bids, the City will consider the qualifications of the Bidders, whether the Bids comply or not with the prescribed requirements, unit prices, and other data as may be requested in the Bid/Proposal form. The City may consider the qualifications and experience of Subcontractors, suppliers and other persons and organizations proposed by the Contractor for the Work. The City may conduct such investigations as the City deems necessary to assist in the evaluation of any Bid and to establish the responsibility, qualifications and financial ability of Bidders, proposed Subcontractors, Suppliers and other persons, and organizations to perform and furnish the Work in accordance with the Contract Documents to the City's satisfaction within the prescribed time.

18.3. If the Contract is to be awarded, it will be awarded to the lowest responsible, responsive Bidder whose evaluation by the City indicates to the City that the award will be in the best interest of the City.

18.4. Award of contract will be made for that combination of base bid and alternate bid items in the best interest of the City, however, unless otherwise specified all work awarded will be awarded to only one Contractor.

18.5. The successful bidder/contractor will be required to comply with Section 119.0701, Florida

Statutes, specifically to:

A. Keep and maintain public records that ordinarily and necessarily would be required by the City of Clearwater in order to perform the service;

B. Provide the public with access to public records on the same terms and conditions that the City of Clearwater would provide the records and at a cost that does not exceed the cost provided in this chapter or as otherwise provided by law;

C. Ensure that public records that are exempt or confidential and exempt from public records disclosure requirements are not disclosed except as authorized by law; and

D. Meet all requirements for retaining public records and transfer, at no cost, to the City of Clearwater all public records in possession of the contractor upon termination of the contract and destroy any duplicate public records that are exempt or confidential and exempt from public records disclosure requirements. All records stored electronically must be provided to the public agency in a format that is compatible with the information technology systems of the City of

Clearwater.

19. BID PROTEST

19.1. RIGHT TO PROTEST:

Pursuant to Section 2.562(3), Clearwater Code of Ordinances, a bidder who submitted a response to a competitive solicitation and was not selected may appeal the decision through

v. 7.2024 8 the bid protest procedures, a copy of which shall be available in the Procurement Division. A protesting bidder must include a fee of one percent of the amount of the bid or proposed contract to offset the City’s additional expenses related to the protest. This fee shall not exceed

$5,000.00 nor be less than $50.00. Full refund will be provided should the protest be upheld. No partial refunds will be made.

20. TRENCH SAFETY ACT

20.1. The Bidder shall comply with the provisions of the City of Clearwater’s Ordinance related to trench digging (Ordinance No. 7918-08) along with the Florida Trench Safety Act (Sections 553.60-

553.64, Florida Statutes) and the provisions of the Occupational Safety and Health Administration's

(OSHA) excavation safety standards, 29 C.F.R.s 1926.650 Subparagraph P, or current revisions of these laws.

21. CONSTRUCTION SITE EROSION AND SEDIMENT CONTROL MANAGEMENT

MEASURES

21.1. The Bidder shall comply with the provisions of the Environmental Protection Agency (EPA)

National Pollution Discharge Elimination System (NPDES) stormwater permit and implement stormwater pollution prevention plans (SWPPP’s) or stormwater management programs (both using best management practices (BMPs) that effectively reduce or prevent the discharge of pollutants into receiving waters.

A. The control of construction-related sediment loadings is critical to maintaining water quality.

The implementation of proper erosion and sediment control practices during the construction stage can significantly reduce sediment loadings to surface waters.

B. Prior to land disturbance, prepare and implement an approved erosion and sediment control plan or similar administrative document that contains erosion and sediment control provisions.

NPDES Management Measures available at City of Clearwater Engineering Environmental

Division and EPA websites to help address construction-related Best Management Practices.

GENERAL CONDITIONS

Section III - General Conditions can be found on the City's website at:

https://www.myclearwater.com/Business-Development/Doing-Business-with-the-City/Engineering-

Construction-Bid-Information/Contract-Specifications

TECHNICAL SPECIFICATIONS

The estimated project duration is 365 consecutive calendar days from the date of the Notice to Proceed, with three (3) optional one-year renewals. Renewal decisions are at the sole discretion of the City.

3.1 SCOPE OF WORK

Project Name: Lift Station Point Repairs and Improvements

Project Number: 25-0006-UT

Scope of Work:

On-call contract for repairs and rehabs of lift station and adjacent force main and gravity sewers.

https://www.myclearwater.com/Business-Development/Doing-Business-with-the-City/Engineering-Construction-Bid-Information/Contract-Specifications https://www.myclearwater.com/Business-Development/Doing-Business-with-the-City/Engineering-Construction-Bid-Information/Contract-Specifications

v. 7.2024 9

3.2 Section IV - Technical Specifications

Section IV - Technical Specifications can be found on the City's website at:

https://www.myclearwater.com/Business-Development/Doing-Business-with-the-City/Engineering-

Construction-Bid-Information/Contract-Specifications

3.3 Section V - Contract Documents

Section V - Contract Documents can be found on the City's website at: https://www.myclearwater.com/Business-Development/Doing-Business-with-the-City/Engineering-

Construction-Bid-Information/Contract-Specifications

SUPPLEMENTAL TECHNICAL SPECIFICATIONS - Section IVA

SPECIFICATIONS FOR WASTEWATER LIFT STATIONS

4.1 407-1. SCOPE AND INTENT

This section shall apply to all wastewater lift stations that are or will discharge to the City of

Clearwater sewage collection system. This includes manholes, gravity mains and force mains. The intent of this section is to ensure that the wastewater lift stations discharging to the

City’s collection system meet minimum standards necessary to avoid Sanitary Sewer Overflows

(SSO’s) while contributing to a maintainable resilient infrastructure. This section is applicable to new construction and the rehabilitation of existing lift stations. All stations shall be submersible type and the basis of design shall be reviewed and approved by the City of Clearwater Public

Utilities Department.

4.2 407-2. PLANS PREPARATION

407-1.1. All sanitary wastewater lift stations and associated force mains and appurtenances shall be designed in accordance with Florida Department of Environmental Protection or assigns, and applicable

City of Clearwater specifications and standards established herein.

407-1.2. Wastewater lift stations that will be owned and operated by the City of Clearwater Public

Utilities Department shall be constructed adjacent to a public right-of-way on property dedicated for such purpose. Site size and conditions shall be as provided within this section. For stations to be owned and operated by the City of Clearwater, the site ownership shall be transferred to the City.

407-1.3. Wastewater lift station plans will be reviewed and approved by the City of Clearwater Public

Utilities Department prior to construction.

4.3 407-3. REFERENCE DOCUMENTS

Specifications included in the 400 SERIES of Section IV of the CITY OF CLEARWATER CONTRACT DOCUMENTS & SPECIFICATIONS apply as applicable for the construction and rehabilitation of wastewater lift stations. These may be accessed at the following link:

https://www.myclearwater.com/government/city-departments/engineering/documents-publications/contract-specifications.

4.4 407-4. DESIGN BASIS

See sections below.

4.5 407-4.1. AVERAGE DAILY FLOW (ADF):

https://www.myclearwater.com/Business-Development/Doing-Business-with-the-City/Engineering-Construction-Bid-Information/Contract-Specifications https://www.myclearwater.com/Business-Development/Doing-Business-with-the-City/Engineering-Construction-Bid-Information/Contract-Specifications https://www.myclearwater.com/Business-Development/Doing-Business-with-the-City/Engineering-Construction-Bid-Information/Contract-Specifications https://www.myclearwater.com/Business-Development/Doing-Business-with-the-City/Engineering-Construction-Bid-Information/Contract-Specifications https://www.myclearwater.com/government/city-departments/engineering/documents-publications/contract-specifications https://www.myclearwater.com/government/city-departments/engineering/documents-publications/contract-specifications

v. 7.2024 10

The wastewater lift station shall be designed based on the ultimate developed or projected flow. Average daily wastewater flow shall be calculated by the Equivalent Residential Unit (ERU) as outlined in Table I

(Appendix A) of Chapter 64E-6 F.A.C. in effect at time of document issuance below. If using fixture units as provided in the currently adopted version of the Florida Building Code the Total ERU= Number of

Fixture Units X 1 ERU/12 Fixture Units. Alternate design criteria may be considered on a case by case basis by the City of Clearwater Public Utilities Department.

4.6 407-4.2. PEAK DESIGN FLOW

v. 7.2024 11

Wastewater lift stations shall be designed for the ADF times the Wastewater Flow Peaking factor (PF) from the graph below.

v. 7.2024 12

Peak Design Flow=ADF X PF

4.7 407-4.3. DESIGN CALCULATIONS

407-4.3.1. Request in writing from the City the pressure information at the tie-in location. The request shall include the location of proposed connection point with a sketch showing an address or parcel ID.

407-4.3.2. Signed and Sealed design calculations shall be included for all wastewater lift stations.

Calculations shall be included in the lift station design drawings and shall include system curves, pump curves, pump make and model, level transducer/float settings and wet well buoyancy calculations. Buoyancy calculations shall assume no friction between the soil and wet well and include only the weight of the wet well and saturated soil above the wet well base flange. Assume the ground water elevation is equal to the surface elevation.

407-4.3.3. All new wastewater lift stations shall be submersible type stations.

407-4.3.4. The lift station shall be capable of pumping the peak design flow with the largest pump out of service.

407-4.3.5. Pumps shall be capable of operating over the entire pump curve without overloading the motor.

407-4.3.6. Each lift station shall have a minimum of two pumps for peak flows of 1,000 gpm or less. Package grinder lift stations serving a single-family residence may have one installed pump, if approved by the City. Flows exceeding 1,000 gpm shall require three (3) or more pumps. All pumps shall be submersible and shall be removable without entering the wet well. One pump shall operate as an installed “spare” and shall alternate into service to maintain even wear on each pump.

407-4.3.7. Design calculations shall include high head and low head condition system curves taking into account force main pressures, friction losses, and wet well sizing.

4.8 407-4.4. ELEVATIONS

WASTEWATER LIFT STATIONS, INCLUDING ELECTRICAL AND MECHANICAL

EQUIPMENT SHALL BE PROTECTED FROM PHYSICAL DAMAGE IN THE EVENT OF A

100-YEAR FLOOD. WASTEWATER LIFT STATIONS SHALL REMAIN FULLY OPERATIONAL

AND ACCESSIBLE DURING A 25-YEAR FLOOD. WET WELL TOP ELEVATIONS AND

CONTROL PANELS SHALL BE SET WITH A MINIMUM OF TWO (2) FEET ABOVE THE 100-

YEAR FLOOD ELEVATION.

v. 7.2024 13

4.9 407-4.5. SITE SIZING AND LAYOUT

407-4.5.1. Stations with a capacity of 1,000 gpm or more shall be sited as follows on the site:

407-4.5.1.1. The concrete pad for the station shall be a minimum of 20 feet to the side and back lot lines and 50 feet away from any residential structures or commercial building envelopes.

407-4.5.1.2. The front edge of the lift station shall be a minimum of 30 feet from the edge of pavement of the roadway.

407-1.5.1.3. The site shall be suitably sized to house an on-site emergency generator.

407-4.5.2. Stations with a capacity of less than 1,000 gpm shall be sited as follows on the site:

407-4.5.2.1. The concrete pad shall be a minimum of 20 feet to the side and back lot lines and a minimum of 30 feet to any residential structures or commercial building envelopes. Accessory structures, including swimming pools, shall be outside of this

30-foot distance.

407-4.5.2.2. Grinder and post-development stations shall be sited on an inside lot within the subdivision.

407-4.5.3. A to-scale site plan shall be provided in the design drawings, which shall include all lot grading details and elevations.

407-4.5.4. All driveway and site drainage shall be directed away from the lift station.

407-4.5.5. Landscaping shall be indicated on the plans. A Homeowner Association acceptance of responsibility for maintenance shall be provided prior to lift station start-up.

4.10 407-4.6. WET WELLS

407-4.6.1. Wet Well Volume. The volume of the wet well between start and stop elevations shall be determined based upon the design pump flow rate as follows:

V = Ɵq / 4

Where:

V = Required capacity in gallons (From Low Water Level to High-Water Level)

Ɵ = Minimum time of one pumping cycle between successive starts, or speed increases of a pump operating over the control range in minutes q = Pump capacity in gallons per minute, for one pump, or the incremental pumping capacity for an additional pump, or pump speed.

v. 7.2024 14

407-4.6.1.1. For large pumps and motors (15 HP and larger), Ɵ shall be not less than 20 minutes. For smaller pumps, Ɵ shall be 15 minutes.

407-4.6.1.2. The cycle of operation for each pump shall be not less than five minutes. The maximum retention time in the wet well shall not average more than 30 minutes.

407-4.6.1.3. For very large pumps and motors with variable drives (larger than 88 HP), the system shall operate continuously with pumps alternating in order to maintain equal wear on the pumping units. The wet well volume will be considered on a case by case basis by the City of Clearwater Public Utilities Department.

407-4.6.2. Wet Well Diameter. The diameter of the wet well shall be between 6-feet diameter and 12-feet in diameter, as required to house the pumps and provide adequate circulation without causing vortexing (air binding) or cavitation while pumps are operating. Grinder stations shall be no more than 6-feet in diameter.

407-4.6.3. Wet Well Depth. The maximum depth of the wet well will be less than 20-feet from ground surface to the inside bottom of the wet well. If additional volume is required, the wet well diameter shall be increased or a second wet well will be considered.

4.11 407-4.6.4. GENERAL REQUIREMENTS

407-4.6.4.1. Control Elevations. Control elevations shall be set as follows: Low Water Level (all pumps off) will be at least three-inches above the top of the pump motors. The high-water alarm will not be above the invert elevation of the influent pipe. For drop inverts the high-water alarm level will not exceed the upper invert elevation.

407-4.6.4.2. Fillet: The wet well floor shall have a grout fillet with a minimum slope of one to one providing a hopper bottom no larger than necessary for proper operation of the pump suction.

407-4.6.5. Wall penetrations. Wet well wall penetrations for pump discharge piping shall be core drilled or have cast in sleeves to provide a smooth sealing surface. Penetrations shall be sealed by installing a Link-Seal modular elastomeric seal as manufactured by

GPT. Openings shall be sized to accommodate the outside diameter of the pipe flange installed on the pump discharge piping.

4.12 407-4.7. VALVE AND METER VAULTS

407-4.7.1. Valve vaults shall provide adequate access for maintenance entry and removal of all installed piping and appurtenances.

407-4.7.2. Wall penetrations shall be as required for the wet wells.

407-4.7.3. The floor if included shall slope to the drain which empties into the wet well.

4.13 407-4.8. WET WELL AND VALVE VAULT BEDDING

v. 7.2024 15

407-4.8.1. Wet wells and valve vaults shall be set on a bed of leveled and compacted #57 stone.

4.14 407-4.9. STAINLESS STEEL PIPING AND APPURTENANCES

407-4.9.1. All wet piping and appurtenances with the exception of the of the pump base elbows and any reducers installed on the base elbows shall be manufactured of 316L stainless steel. The stainless steel piping shall extend out of the wet well to the first flanged connection in the valve vault.

4.15 407-4.10. ALUMINUM ACCESS HATCHES

v. 7.2024 16

407-4.10.1. Water Resistant Access Hatches: The hatches shall have a 1/4" (7mm) thick one-piece, mill finish, extruded aluminum channel frame, incorporating a continuous concrete anchor. A 1 1/2" (38mm) drainage coupling shall be located in the front left corner of the channel frame. Door panel shall be 1/4" (7mm) aluminum diamond plate, reinforced to withstand a live load of 300 lbs. psf (1464 kg. psm). Uniform live load.

Door shall open to 90 degrees and automatically lock with a T-316 stainless steel hold open arm with an aluminum release handle. Door shall close flush with the frame.

Hinges and all fastening hardware shall be T-316 stainless steel. Unit shall lock with a non-corrosive locking bar and have a non-corrosive handle. Unit shall carry a lifetime guarantee against defects in material and/or workmanship.

407-4.10.2. H20 Load Rated Water Resistant Hatches: Hatches shall have a 1/4 inch (7mm) thick, one-piece, mill finish, extruded aluminum channel frame, incorporating a continuous concrete anchor. A 1-1/2 inch (38mm) drainage coupling shall be located in the front left corner of the channel frame. The inside of the frame shall have a door-support ledge on two (2) sides. Both frame and ledge must be supported by a full bed of Class

A concrete. The door panels shall be 1/4" (7mm) aluminum diamond plate, reinforced to withstand a live load of the H-20, Uniform live load. Doors shall open to 90 degrees and automatically lock with a T-316 stainless steel hold open arm with aluminum release handle. For ease of operation, doors shall incorporate enclosed stainless steel compression spring assists. Doors shall close flush with the frame. Hinges and all fastening hardware shall be T-316 stainless steel. Unit shall lock with a T-

316stainless steel slam lock with removable key and have a non-corrosive handle.

Unit shall carry a lifetime guarantee against defects in material and/or workmanship.

407-4.10.3. All hatches installed in wet wells shall include a manufacturer installed safety grate. Construction shall be 1 inch (25 kg.) aluminum “I” bar grating with Safety

Orange powder-coated finish. Grating shall be hinged with tamper proof stainless steel bolts, and shall be supplied with a positive latch to maintain unit in an upright position. Grating shall have a 6-in. (152mm) viewing area on each lateral unhinged side for visual observation and limited maintenance. Grating support ledges on 300 lbs. psf (1464 kg. per sq. meter) loaded access covers shall incorporate nut rail with a minimum of four (4) stainless steel spring nuts. A padlock hasp for owner-supplied padlock shall be provided.

407-4.10.4. Retrofit Safety Grates shall be installed in existing wet well hatches that do not currently contain them. Safety grating shall incorporate the following features. Aluminum “I” bar construction, T-316 stainless steel hardware, spring loaded lifting handle, lockable with owner-supplied padlock, 300 lbs. per sq. ft. load rating (1468 kg. per sq. meter load rating), hinged with automatic hold open arm to maintain upright position, viewing areas for observation and limited maintenance, include T-316 stainless steel mounting hardware, safety orange powder-coating finish, 10 year guarantee.

407-4.10.5. Valve and meter vaults over 4 feet deep shall have an integral ladder or steps installed.

4.16 407-4.11. PRE-PACKAGED GRINDER LIFT STATIONS

v. 7.2024 17

407-4.11.1. Shall be owned and maintained by the proper owner or management group responsible for maintenance and payment of power bills.

407-4.11.2. Single pump restrictions: Single pump prepackaged systems shall only be used on single family residences. Multi-family residences and commercial properties shall be serviced by dual pump systems

407-4.11.3. Responsibility for power and payment of utility bills: Electric service for multi-family residences and commercial properties shall be set up such that service shut down to any given residence or commercial space does not prevent lift station operation for the remaining tenants.

4.17 407-4.12. SUBMERSIBLE WASTEWATER PUMPS

v. 7.2024 18

407-4.12.1. Submittals: Shop drawings and product data including pump curves, materials and operating points shall be submitted for submersible sewage pumps. Deviations from specified requirements shall be stated on the submittal cover sheet.

407-4.12.2. Each pump shall be equipped with a submersible electric motor connected for operation as indicated on contract drawings, submersible cable (SUBCAB) suitable for submersible pump applications.

407-4.12.3. The pumps shall be supplied with a mating cast iron discharge connection. The pumps shall be automatically and firmly connected to the discharge connection, guided by no less than two guide bars extending from the top of the station to the discharge connection. There shall be no need for personnel to enter the wet-well. Sealing of the pumping unit to the discharge connection shall be accomplished by a machined metal to metal watertight contact. Sealing of the discharge interface with a diaphragm, O-ring or profile gasket will not be acceptable. No portion of the pump shall bear directly on the sump floor. Each pump shall be fitted with 316SS lifting chain or stainless steel cable. The working load of the lifting system shall be

50% greater than the pump unit weight.

407-4.12.4. Major pump components shall be of grey cast iron, ASTM A-48, Class 35B, with smooth surfaces devoid of blow holes or other irregularities. The lifting handle shall be of stainless steel. All exposed nuts or bolts shall be AISI type 316 stainless steel construction. All metal surfaces coming into contact with the pumpage, other than stainless steel or brass, shall be protected by a factory applied spray coating of acrylic dispersion zinc phosphate primer with a polyester resin paint finish on the exterior of the pump.

407-4.12.5. Sealing design shall incorporate metal-to-metal contact between machined surfaces.

Critical mating surfaces where watertight sealing is required shall be machined and fitted with Nitrile or optional Viton rubber O-rings. Fittings will be the result of controlled compression of rubber O-rings in two planes and O-ring contact of four sides without the requirement of a specific torque limit. Rectangular cross sectioned gaskets requiring specific torque limits to achieve compression shall not be considered as adequate or equal. No secondary sealing compounds, elliptical O-rings, grease or other devices shall be used.

407-4.12.6. The cable entry seal design shall preclude specific torque requirements to insure a watertight and submersible seal. The cable entry shall consist of a single cylindrical elastomer grommet, flanked by washers, all having a close tolerance fit against the cable outside diameter and the entry inside diameter and compressed by the body containing a strain relief function, separate from the function of sealing the cable. The assembly shall provide ease of changing the cable when necessary using the same entry seal. The cable entry junction chamber and motor shall be separated by a stator lead sealing gland or terminal board, which shall isolate the interior from foreign material gaining access through the pump top. Epoxies, silicones, or other secondary sealing systems shall not be considered acceptable.

v. 7.2024 19

407-4.12.7. The pump motor shall be a NEMA B design, induction type with a squirrel cage rotor, shell type design, housed in an air filled, watertight chamber. The stator windings shall be insulated with moisture resistant Class H insulation rated for 180°C (356°F). The stator shall be insulated by the trickle impregnation method using Class H monomer-free polyester resin resulting in a winding fill factor of at least 95%. The motor shall be inverter duty rated in accordance with NEMA MG1, Part 31. The stator shall be heat-shrink fitted into the cast iron stator housing. The use of multiple step dip and bake-type stator insulation process is not acceptable. The use of bolts, pins or other fastening devices requiring penetration of the stator housing is not acceptable. The motor shall be designed for continuous duty handling pumped media of 40°C (104°F) and capable of no less than 30 evenly spaced starts per hour. The rotor bars and short circuit rings shall be made of cast aluminum. Thermal switches set to open at

125°C (260°F) shall be embedded in the stator end coils to monitor the temperature of each phase winding. These thermal switches shall be used in conjunction with and supplemental to external motor overload protection and shall be connected to the control panel. The junction chamber containing the terminal board, shall be hermetically sealed from the motor by an elastomer compression seal. Connection between the cable conductors and stator leads shall be made with threaded compression type binding posts permanently affixed to a terminal board. The motor and the pump shall be produced by the same manufacturer.

407-4.12.8. The combined service factor (combined effect of voltage, frequency and specific gravity) shall be a minimum of 1.15. The motor shall have a voltage tolerance of plus or minus 10%. The motor shall be designed for operation up to 40°C (104°F) ambient and with a temperature rise not to exceed 80°C. A performance chart shall be provided upon request showing curves for torque, current, power factor, input/output kW and efficiency. This chart shall also include data on starting and no-load characteristics. The motor horsepower shall be adequate so that the pump is non-overloading throughout the entire pump performance curve from shut-off through run-out.

407-4.12.9. The motor shall be capable of continuous submergence underwater without loss of watertight integrity to a depth of 65 feet or greater.

407-4.12.10. The power cable shall be sized according to the NEC and ICEA standards and shall be of sufficient length to reach the junction box without the need of any splices. The outer jacket of the cable shall be oil resistant chlorinated polyethylene rubber. The cable shall be capable of continuous submergence underwater without loss of watertight integrity to a depth of 65 feet or greater.

407-4.12.11. The pump shaft shall rotate on two bearings. Motor bearings shall be permanently grease lubricated. The upper bearing shall be a single deep groove ball bearing. The lower bearing shall be a two row angular contact bearing to compensate for axial thrust and radial forces. Single row lower bearings are not acceptable. The minimum

L10 bearing life shall be 50,000 hours at any usable portion of the pump curve.

v. 7.2024 20

407-4.12.12. Each pump shall be provided with a tandem mechanical shaft seal system consisting of two totally independent seal assemblies. The seals shall operate in a lubricant reservoir that hydro-dynamically lubricates the lapped seal faces at a constant rate.

The lower, primary seal unit, located between the pump and the lubricant chamber, shall contain one stationary and one positively driven rotating, corrosion and abrasion resistant tungsten-carbide ring. The upper, secondary seal unit, located between the lubricant chamber and the motor housing, shall contain one stationary and one positively driven rotating, corrosion and abrasion resistant tungsten-carbide seal ring.

407-4.12.13. Each seal interface shall be held in contact by its own spring system. The seals shall require neither maintenance nor adjustment nor depend on direction of rotation for sealing. The position of both mechanical seals shall depend on the shaft. Mounting of the lower mechanical seal on the impeller hub will not be acceptable. For special applications, other seal face materials shall be available.

407-4.12.14. The following seal types shall not be considered acceptable or equal to the dual independent seal specified: shaft seals without positively driven rotating members, or conventional double mechanical seals containing either a common single or double spring acting between the upper and lower seal faces. No system requiring a pressure differential to offset pressure and to effect sealing shall be used.

407-4.12.15. Each pump shall be provided with a lubricant chamber for the shaft…