12-Addendum 1.pdf

ADDENDUM 1

Pre-Proposal Meeting Date Extension /

Elimination of Bond Requirements / Updated

Specifications

RFP 26-19188-TF

Lake Alan Henry Raw Waterline Cleaning

DATE ISSUED: October 10, 2025

CLOSING DATE: October 23, 2025, at 2:00 p.m.

The following items take precedence over specifications for the above named Request for Proposals

(RFP). Where any item called for in the RFP documents is supplemented here, the original requirements, not affected by this addendum, shall remain in effect.

Pre-Proposal Meeting Date

1. The Pre-Proposal Meeting Date has been extended to Wednesday, October 15, 2025, at 10AM CST.

a. Zoom meeting details/link remain the same.

Elimination of Bond Requirements

1. Please disregard reference to a bid bond, performance bond, and payment bond.

Updated Specifications

1. Please utilize updated specifications dated 10/10/2025, attached.

All requests for additional information or clarification must be submitted in writing and directed to:

Teofilo Flores

City of Lubbock

Purchasing and Contracts Management Office

1314 Ave K, Floor 9

Lubbock, Texas 79401

Questions may be emailed to TKFlores@mylubbock.us

Questions are preferred to be posted on https://ci-lubbock-tx.bonfirehub.com/

THANK YOU,

Teofilo Flores

CITY OF LUBBOCK

Teofilo Flores

Assistant Director

City of Lubbock

Purchasing and Contracts Management Office

It is the intent and purpose of the City of Lubbock that this request permits competitive proposals. It shall be the offeror’s responsibility to advise the Director of Purchasing and Contract Management if any language, requirements, etc., or any combinations thereof, inadvertently restricts or limits the requirements stated in this RFP to a single source. Such notification must be submitted in writing and must be received by the Director of Purchasing and Contract Management no later than five (5) business days prior to the close date. A review of such notifications will be made.

https://ci-lubbock-tx.bonfirehub.com/

LAH Raw Waterline Cleaning Seal Sheet October 10, 2025

PIGGING AND CLEANING 50-MILES OF 42”AND 48” RAW

WATER PIPELINE FROM LAKE ALAN HENRY TO SOUTH

LUBBOCK WATER TREATMENT PLANT

TECHNICAL SPECIFICATIONS

OCTOBER 25

18797 Image

18797 Date

LAW Raw Waterline Cleaning 2 October 10, 2025

TABLE OF CONTENTS

CITY OF LUBBOCK

Lake Alan Henry Raw Waterline Cleaning

DIVISION 01 GENERAL REQUIREMENTS

SECTION 01 11 00 SUMMARY OF WORK

SECTION 01 22 00 MEASUREMENT AND PAYMENT

DIVISION 02 EXISTING CONDITIONS

SECTION 02 42 00 REMOVAL OF CONSTRUCTION MATERIALS

DIVISION 33 UTILITIES

SECTION 33 01 10.54 CLEANING OF WATER UTILITY PIPING

REFERENCES

City of Lubbock Engineering Minimum Design Standards and Specifications

LAH Raw Waterline Cleaning Section 01 11 00 - 3 October 10, 2025

DIVISION 01 GENERAL REQUIREMENTS

SECTION 01 11 00 SUMMARY OF WORK

1. GENERAL

1.1. SUMMARY

A. This section covers the description of the Work to be completed under these Specifications.

B. The OWNER is the City of Lubbock.

1) The Owner’s Representative:

John Turpin, P.E.

Division Director of Engineering/City Engineer City of Lubbock O: (806) 775-2342

2) The Project Manager:

Zildjian Manicavelu, EIT Civil Engineer Associate City of Lubbock O: (806) 775-3630

1.2. PROJECT DESCRIPTION

A. The purpose of this project is to clean the two segment raw waterline that runs from the Lake Alan Henry pump station to the Post booster pump station with a 42 inch diameter and 22 miles of pipe, then from the Post booster pump station to the South Water Treatment Plant with a 48 inch diameter and 29 miles of pipe. The water lines will be cleaned using a pigging procedure.

Majority of the labor will be performed by the City under direction and guidance from The Contractor.

B. Major work items are:

1) Assist City forces with cleaning 22 miles of a 42-inch diameter raw water line by pigging as many times as needed to achieve the specified C value.

2) Assist City forces with cleaning 29 miles of a 48-inch diameter raw water line by pigging as many times as needed to achieve the specified C value.

3) Provide directions to City of Lubbock forces to test the cleaned raw waterlines until the specified C value is achieved.

C. The Contractor shall provide a comprehensive pigging guide detailing the entire pigging process, testing, and material selection such as pig type/size and other appurtenances.

D. The Contractor shall provide a small crew to perform testing, provide direction, equipment, and all materials and appurtenances required to complete the work as contracted and specified herein.

LAH Raw Waterline Cleaning Section 01 11 00 - 4 October 10, 2025

E. The City of Lubbock will provide a crew to perform the labor. The crew provided by The Contractor shall give direction and guidance to the City crew throughout the work specified herein.

F. The work shall be performed between November 2025 and February 2026 coinciding with the City of Lubbock low flow seasons.

1.3. PERMITS AND LICENSES

A. Contractor shall be verifiably experienced and highly qualified to perform required work.

1.4. PROJECT SCHEDULE

A. The Work summarized above shall be substantially completed within 25 calendar days from the date of the Notice to Proceed.

B. There will be a $200.00 per day liquidated damages for each day that exceeds the 25 day limit.

2. PRODUCTS

A. Contractor shall provide the pigs required for the raw water line cleaning operations

Refer to Section 33 01 10.54 Cleaning of Water Utility Piping.

3. EXECUTION

3.1. COORDINATION REQUIREMENTS

A. Contractor shall inform the Owner when coordination of the work is required.

3.2. PRE-CONSTRUCTION MEETING

A. A pre-construction meeting will be held at Citizens Tower within ten (10) days of the date of Notice to Proceed and prior to any construction taking place.

END OF SECTION

LAH Raw Waterline Cleaning Section 02 42 00 - 5 October 10, 2025

SECTION 01 22 00 MEASUREMENT AND PAYMENT

1. GENERAL

1.1. SCOPE

A. The following sections shall be used to define measurements and payments for this project. The unit price bid on each item as stated in the bid proposal shall include furnishing all labor, superintendence, machinery, equipment, and materials except as otherwise specified, necessary or incidental to complete the various items of work in accordance with the plans and specifications. Cost of work or materials shown on the plans or called for in the specifications and on which no separate payment is made shall be included in the bid prices on the various pay items.

Payment will not be made for any item that is not complete, including all associated incidental work. Only those items indicated on bid documents and plan sheets will be included for construction and payment.

1.2. MOBILIZATION

A. The cost for mobilization shall be limited to no more than 10% of the Contract amount for construction items (materials and labor) bid for this project.

B. Mobilization shall include costs associated with move-in related equipment and labor, bid bond, performance and construction bonds and insurance related for this project. This would include the establishment and removal of offices, plants and facilities, movement of personnel, equipment, and supplies to and from the project or the vicinity of the project site to begin work or complete work on Contract Items.

This Item will be measured by the lump sum as the work progresses.

1.3. SEGMENT 1 PIGGING

A. Measurement will be paid for at the unit bid price of a lump sum for the cleaning and testing of segment 1. The unit price bid shall include furnishing and installing all materials, all incidentals and appurtenances necessary to complete the work to City of Lubbock standards and specifications. Contractor to assist and direct City crew in performing pigging procedures and flow testing for 22 miles of 42" raw water line.

1.4. SEGMENT 2 PIGGING

A. Measurement will be paid for at the unit bid price of a lump sum for the cleaning and testing of segment 2. The unit price bid shall include furnishing and installing all materials, all incidentals and appurtenances necessary to complete the work to City of Lubbock standards and specifications. Contractor to assist and direct City crew in performing pigging procedures and flow testing for 29 miles of 48" raw water line.

2. PRODUCTS

A. Refer to Section 33 01 10.54 Cleaning of Water Utility Piping

3. EXECUTION

Not used.

LAH Raw Waterline Cleaning Section 02 42 00 - 6 October 10, 2025

DIVISION 02 EXISTING CONDITIONS

SECTION 02 42 00 REMOVAL OF CONSTRUCTION

MATERIALS

1. GENERAL

1.1. SUMMARY

A. The City will be responsible for disposing the used pigs and waterline refuse.

2. PRODUCTS

Not Used.

3. EXECTION

Not Used.

Project Name Section 33 05 76.23 - 7 October 10, 2025

DIVISION 33 UTILITIES

SECTION 33 01 10.54 CLEANING OF WATER UTILITY PIPING

1. GENERAL

1.1. SUMMARY

A. The work described within this specification details the cleaning of a raw water line using a pigging procedure. The end result constitutes a clean water line free of debris and growth. A clean line ensures a smoother flow and less strain on the pumps due to the lower friction that results from the pigging procedure.

B. The City of Lubbock will provide a crew to perform the labor, and the contractor shall provide a small crew to perform testing, and give direction and guidance throughout the work specified herein.

C. The C value mentioned below in Section 33 01 10.54.3.3.3 Testing is referencing the Hazen-Williams roughness coefficient. The Hazen-Williams roughness coefficient “C” is calculated using the following formula.

� � 2,466 ∗ � ∗ Where:

C = Hazen-Williams roughness coefficient Q = Quantity of flow in a pressure conduit, MGD (m3/day) D = Nominal diameter of the pipe, in. (mm) H = Head loss, ft. (m) of water L = Length of pipe, ft. (m)

For a clean interior pipe, the roughness coefficient “C” should be 100, per AWWA M28.

1.2. REFERENCES

A. AWWA M28 – Rehabilitation of Water Mains

1.3. SUBMITTALS

A. Conform to requirements of Section 01 33 00 – Submittal Procedures.

B. All permits must be obtained by the Contractor, submitted to and approved by the owner prior to beginning any work; with any material.

C. Product Data: Technical data sheet for each product used; Material Safety Data

Sheet (MSDS)

D. Design Variations: Description of variations from application procedures, application equipment, or testing.

E. Applicator Qualifications:

Project Name Section 33 05 76.23 - 8 October 10, 2025

1) Certification that the Applicator has been trained and approved in the handling and operation of products and equipment to be used.

2) Five (5) recent references for the Applicator (projects of similar size and scope) indicating successful pigging of waterline systems.

3) Proof of federal, state or local permits or licenses necessary for the project.

4) Five (5) or more years of experience on similar projects.

F. Equipment used for the pigging process, including but not limited to: pigs, snubbers, and tracking equipment.

G. Design details for any additional ancillary systems and equipment to be used on site and surface preparation, application or testing.

1.4. QUALITY ASSURANCE

A. Applicator shall initiate and enforce quality control procedure consistent with applicable AWWA standards. All quality control testing is at the Contractor’s cost unless otherwise noted.

1.5. DELIVERY, STORAGE, AND HANDLING

A. Materials are to be kept dry, protected from weather and stored under cover.

B. All materials should be stored in accordance with manufacture’s recommendations.

2. PRODUCTS

2.1. Pipeline Pigs

A. The pigs shall have a density of 2 to 10

(pounds per cubic foot) and built out of polyurethane foam with an open cell structure. The pig shall have a bullet shaped nose with an exterior coating of closed cell urethane and shall be available for use in water systems. The peripheral surface on the pig shall be resilient and abrasive resistant, maintaining a constant sliding seal against the interior wall of the pipeline.

B. The pig shall be capable of scratching, scraping, plowing and jetting.

C. The recommended selection, type, and number of pigs to be utilized by the Contractor shall be given to the City in writing prior to pipe cleaning.

2.2. EQUIPMENT

A. The equipment recommended by the contractor shall be responsible for determining adequate size and capacity to accomplish the pigging work in a timely manner.

3. EXECUTION

3.1. COORDINATION

A. Contractor shall develop and submit a project schedule prior to starting any work.

The Contractor shall meet with the City at Citizens Tower for a pre-construction meeting to coordinate and discuss the project schedule and requirements for starting the work.

Project Name Section 33 05 76.23 - 9 October 10, 2025

B. The scheduling of flushing, cleaning and testing operations shall be coordinated with, and agreed to by the City in writing prior to pipe cleaning with at least 5 business days of notice.

3.2. GENERAL

A. Application shall be in strict accordance with the manufacturer’s instructions (Refer to manufacturer’s application instructions for additional details and recommendations not included herein).

B. Use only skilled workers who are trained and experienced in pipeline pigging for waterline rehabilitation. Contractor shall identify qualified personnel and ensure that these people are on site start to finish.

C. The existing pipeline is to be cleaned free of all debris, foreign growth, or other matter, leaving the inside of the pipe smooth and free from any irregularities. The operation shall be such that the existing pipeline may be immediately put back in service once cleaning has been completed. The City shall handle disposal of the debris that results from the pigging.

D. Prevent material from entering water lines. Contractor will be fully responsible for any damage caused due to debris entering the water line during preparation work and/or pigging activity.

E. The Contractor shall conduct operations in conjunction with the City to minimize impact to natural waterways, and shall not permit silt, clay, or mud to enter any drainage system or wetland area.

F. The Contractor shall have readily available on site manpower, equipment, and materials required to track and locate any pig in the pipeline.

G. The City shall provide a crew to perform the labor under direction and guidance from the Contractor.

3.3. TESTING

A. Prior to cleaning, each pipeline may be tested by the Contractor with the City’s assistance, to calculate a field approximated “C” value. Determined values shall be reviewed by the Contractor and the City. Computer programs for field calculations may be supplied by the Contractor.

B. Following pipeline cleaning and flushing, each pipeline shall again be tested by the Contractor to determine new “C” values.

C. Successful cleaning will be accomplished after the field calculated “C” value is equal to or greater than 100, or to a value mutually agreed to by the City and the Contractor.

Project Name Section 33 05 76.23 - 10 October 10, 2025

D. All flow testing shall be witnessed by and be acceptable to the City.

3.4. PIPELINE CLEANING

A. The Contractor shall utilize conservative methods of pipeline cleaning and be responsible for selecting sizes, quantities, and types of pigs to efficiently clean the pipeline with approval from the City.

B. The Contractor shall be prepared to provide additional water pressure and volume that may be required to launch and propel the pigs through the pipeline.

C. The Contractor will direct and assist City crew in launching the pig, monitoring its progress through the pipeline, thoroughly flush the pipeline after recovering the pig, and test in accordance with Section 33.01.10.54.3.3.3 Testing.

D. Pipeline cleaning will be repeated as necessary at no additional cost to the owner if the specified “C” value or flow rate has not been achieved. Pipeline will be considered clean after the specified “C” value or flow rate has been achieved in accordance to Section 33.01.10.54.3. 3.3 Testing.