2025_HorizontalDirectionalDrill_TechSpec_final.docx

ATTACHMENT 3

TECHNICAL SPECIFICATIONS / STATEMENT OF WORK SECTION 01100 – SUMMARY OF WORK

GENERAL

SCOPE OF WORK

A. The work specified under this contract includes the installation of piping for GRU using the approved construction methods, procedures, and materials for horizontal directional drilling (HDD). The piping installed will be for the following GRU departments:

GRU Water/Wastewater Systems

a. Water Distribution

b. Wastewater Collection

c. Reclaimed Water Distribution GRUCom Fiber Optic Communications GRU Gas Transmission & Distribution GRU Electric Transmission & Distribution (on temporary basis in situations where work exceeds capacity of their primary contractor) B. Under this contract, the Contractor will be required to furnish all labor, equipment, and incidentals required to install the piping by HDD as part of a GRU utility project. The pipe materials may either be furnished by the Contractor, or furnished by GRU, and will be priced accordingly as specified herein.

GENERAL REQUIREMENTS

A. The Contractor’s work shall meet the requirements of this specification, the most current version of GRU’s Design and Construction Standards

CONTRACTOR’S DUTIES

A. Contractor shall provide all labor, materials, tools, construction equipment, and machinery necessary to perform the Work.

Contractor is responsible for contacting Sunshine One (811) and securing locates on all jobs. All utility locates and conflicts must be cleared prior to the Contractors work.

Contractor is responsible for ensuring that all State, County, and/or City permits have been secured before initiating work.

Contractor is responsible for recording bore logs of each directional bore and fuse logs for each fused HDPE weld.

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2020-036 | Technical Specifications Page | 2

Contractor is responsible for providing MOT for the work zone.

Contractor is responsible for ensuring that all work is performed in accordance with the Specifications.

Contractor is responsible for obtaining, transporting, and sorting any fluids, including water, to and from the work site.

SCHEDULE OF WORK

A. GRU will request the Contractor to perform work on an as needed, when requested basis.

B. For routine work, GRU will submit a work listwork order to the Contractor with the location, size, and type of each HDD pipe installation requested. This list will be submitted to the Contractor on a weekly basis, or more frequently as needed. The Contractor shall refer to Exhibit 1 for an example of typical routine HDD pipe installation workload.

The Contractor shall complete all HDD pipe installations on each work listwork order within 10 business days of receiving the list.

If the Contractor is unable to complete the work within 10 business days, they shall immediately notify GRU and provide a schedule for completion.

C. For emergency work such as when water service is out or other work so deemed an emergency by GRU, work shall be performed the same day that the Contractor is contacted. For emergency work performed by the Contractor during the hours of 7 AM to 5 PM on the date of notification, the Contractor shall be entitled to an emergency charge of $(Pricing Form F3). Emergency work performed outside the hours of 7:30 AM to 5:30 PM on the date of notification, shall be considered premium work hours with a (Pricing Form F1) % multiplierrate.

D. For non-routine, non-emergency work, GRU will schedule a site visit with the Contractor and coordinate the size, type, and schedule of the HDD pipe installation on a project specific basis.

PRODUCTS (NOT USED)

EXECUTION

OWNER RESPONSIBILITIES

A. GRU shall be responsible for obtaining and the cost associated with all required permits for each project.

B. GRU shall be responsible for providing Drawings on each project, or coordinating with the Contract on site and providing clear direction on the HDD installation location, size, length, and depth.

WORK RESTRICTIONS

A. Contractor assumes full responsibility for protections and safekeeping of products stored on premises. Contactor is also responsible for securing storage locations for Contractor furnished materials. Under no circumstances will any work be done in a State, County, or City rights of way (ROW) without a permit.

B. The Contractors standard allowable work hours are weekdays (Monday through Friday) 7:30am to 5:30pm. The Contractor shall not be allowed to work on GRU projects on any day GRU offices are closed, unless required due to an emergency installation or project specific work requirements.

C. GRU’s normal work schedule shall be considered 8am – 5pm, Monday through Friday. Unless approved otherwise by GRU, work items requiring oversight such as, leakage and pressure testing, density testing, and final inspections shall be scheduled during GRU’s normal work schedule.

PROJECT COORDINATION

A. Permits Permits for all work within the FDOT, City of Gainesville, Alachua County, Florida Department of Environmental Protection (FDEP), and Submerged Land of the State of Florida right of way shall be obtained and paid for by GRU. Contractor shall verify the existence of all permits before commencing any work on the project.

B. Notifications and Preconstruction Meetings Prior to starting any construction work, Contractor must obtain a copy of all the Approved ROW Use Permits from GRU Staff. The HDD Contractor must at all times retain a copy of the Approved Permit at the project site.

The Contractor shall provide GRU staff a firm start date and time for their work, a minimum of 48-hours in advance of the work so the ROW Use Permit may be activated with the ROW Agency.

In addition to notification, the Contractor shall be responsible for scheduling a Pre- Bore meeting with the ROW Agency’s inspector listed on the permit. The Pre-Bore meeting shall occur 24-hours (minimum) prior to beginning the HDD work. The meeting should include all applicable ROW Agency representatives.

RECORD DOCUMENTS

A. Bore logs (provide detail on format in contract after review of submitted sample) B. As-built field sketches, if requested C. Details on who to email documents to, etc. Schedule for receiving information.

[This section to be completed after award to include names and email etc.] For Water Distribution (update contact info after award)

a. Bore Logs: name (email) within 7 calendar days of work completed

b. Invoices: GRU Accounts Payable (accountspayable@gru.com) and name (email) within 10 calendar days of work completed For Wastewater Collections

a. Bore Logs: name (email) within 7 calendar days of work completed

b. Invoices: GRU Accounts Payable (accountspayable@gru.com) and name (email) within 10 calendar days of work completed For GRUCom For GRU Gas T&D For GRU Electric T&D (if applicable)

END OF SECTION

SECTION 01200 – MEASUREMENT AND PAYMENT

GENERAL

SCOPE OF WORK

A. This section covers methods of measurement and payment for items of work under this Contract.

B. All cost in connection with the proper and successful completion of the work, including furnishing all materials, equipment, and tools and performing all necessary labor and supervision to fully complete the work, shall be included in the unit price and lump-sum bid prices listed in the Pricing Response Form. All work not specifically set forth as a pay item in the Pricing Response Form shall be considered a subsidiary/ancillary obligation of the Contractor, and all costs in connection with these subsidiary/ancillary obligations shall be included in the bid.

UNIT PRICE

A. For unit price items, payment shall be made based on the actual amount of work completed by the Contractor and accepted by the GRU.

B. After the work is completed and before final payment is made, GRU will make final measurements, with all required assistance from the Contractor, to determine the quantities of various items of work accepted as the basis for the final unit price payment.

C. There shall be no charges or fees associated with this work.

DELETED ITEMS

A. Should any items contained in the Bid Schedule(s) be found unnecessary for the proper completion of the work contracted, GRU may eliminate such items from the Contract. This action shall in no way invalidate the Contract and no financial allowance or compensating payment for anticipated profit, overhead, etc., will be made for items so eliminated in making final payment to the Contractor.

PARTIAL PAYMENTS

A. Partial payments shall be made monthly as the work progresses.

PAYMENT FOR STORED MATERIAL DELIVERED TO THE PROJECT

A. When requested by the Contractor and at the discretion of GRU, payment may be made for all or part of the value of acceptable materials and equipment to be incorporated into bid items, which have not been used, and which have been delivered to the construction site or placed in storage places acceptable to GRU. The Contractor shall provide receipts for all stored material items requested for reimbursement which clearly identify the stored material item, where it is to be constructed, the unit cost of the item, as well as the total cost of the delivered item(s), the quantity of the item, the brand name of the item, and the supplier. Note that there are additional documentation requirements and storage requirements within the Contract Documents that must also be met before the Contractor can be reimbursed for these stored materials.

B. No payment shall be made for fuels, supplies, installation or connection hardware, lumber, false work, or other similar materials or on temporary structures or other work (items) of any kind which are not a permanent part of the Contract. Items having a value of less than $2,500 shall not be compensated for as a stored material item.

MISCELLANEOUS CONSTRUCTION ITEMS

A. The Contractor shall take all precautions necessary to protect existing utilities, roads, and miscellaneous items from damage during construction.

B. The Contractor shall repair, relocate, or replace existing utilities, roadways, and miscellaneous items to pre-construction conditions unless otherwise noted in the Drawings. (Contractor is only responsible for roadway or sidewalk (asphalt / concrete) repairs related to their work to locate existing utilities. Contractor is not responsible for roadway or sidewalk (asphalt / concrete) related to water or wastewater or reclaim repair.)

C. All repairs, relocations, and replacements necessary are considered incidental to the work and will be at the Contractor’s cost, with no cost to GRU.

D. The unit-price bid items for all pipe items shall constitute full compensation for furnishing, laying, jointing, and testing of pipe; dewatering; excavation and backfill; and cleanup.

PAY ITEM DESCRIPTIONS

A. The descriptions provided in the following paragraphs are to be used by the Contractor in preparing the bid. They generally indicate how the work items and their respective costs are to be separated into the line items listed in the Pricing Response Form. These descriptions are neither fully representative nor all-inclusive of the work required to complete the work in accordance with the Specifications. It is the Contractor’s responsibility to include all required costs within the most appropriate line item(s).

WATER DISTRIBUTION AND RECLAIMED WATER, CARRIER PIPES:

Item A.1 Install 2” PE Tubing, DR 9 Water or Reclaimed Main Pipe: The Contractor shall furnish all labor, equipment, and services for installation of a 2” PE Tubing water or reclaimed main by HDD in accordance with the Contract Documents, including but not limited to mobilization and demobilization, Sunshine 811 Utility Locates, verifying utility depths and locations, joining of pipe segments by heated butt-fused welds, drilling of pilot hole, back reaming, pipe pull-back installation, providing mud slurry, recycling mud slurry mixtures, disposal of all cuttings and debris, excavation if needed of entry or exit pits, minor dewatering, installation of tracing wire along entire bore-path, providing GRU records including boring logs and as-built sketches, backfilling, and site restoration. The Contractor shall be paid separate unit pricing for either GRU furnished pipe material or Contractor furnished pipe material. The Contractor shall be paid for each linear feet of pipe installed complete.

Item A.1, Install 2” PE Tubing, DR 9 Water Main Pipe: The Contractor shall furnish all labor, equipment, and services for installation of a 2” PE Tubing water or reclaimed main by HDD in accordance with the Contract Documents, including but not limited to mobilization and demobilization, Sunshine 811 Utility Locates, verifying utility depths and locations, joining of pipe segments by heated butt- fused welds, drilling of pilot hole, back reaming, pipe pull-back installation, providing mud slurry, recycling mud slurry mixtures, disposal of all cuttings and debris, excavation if needed of entry or exit pits, minor dewatering, installation of tracing wire along entire bore-path, providing GRU records including boring logs and as-built sketches, backfilling, and site restoration. The Contractor shall be paid separate unit pricing for either GRU furnished pipe material or

Contractor furnished pipe material. The Contractor shall be paid for each linear feet of pipe installed complete.

Items A.2 to A.76, Install 4”-126” DI Water or Reclaimed Main Pipe: The Contractor shall furnish all labor, equipment, and services for installation of a 4” – 162” Ductile Iron water or reclaimed main by HDD in accordance with the Contract Documents, including but not limited to mobilization and demobilization, Sunshine 811 Utility Locates, verifying utility depths and locations, assembly and joining of pipe segments, providing pipe rollers if needed, providing all equipment as needed by pipe size for pipe assembly, drilling of pilot hole, back reaming, pipe pull-back installation, providing mud slurry, recycling mud slurry mixtures, disposal of all cuttings and debris, excavation if needed of entry or exit pits, minor dewatering, installation of tracing wire along entire bore-path, providing GRU records including boring logs and as-built sketches, backfilling, and site restoration. The Contractor shall be paid separate unit pricing for either GRU furnished pipe material or Contractor furnished pipe material. The Contractor shall be paid for each linear feet of pipe installed complete.

Items A.87 to A.12, Install 4”-162” HDPE, DR 11 Water or Reclaimed Main Pipe: The Contractor shall furnish all labor, equipment, and services for installation of a 4” – 126” HDPE water or reclaimed main by HDD in accordance with the Contract Documents, including but not limited to mobilization and demobilization, Sunshine 811 Utility Locates, verifying utility depths and locations, joining of pipe segments by heated butt-fused welds, providing pipe rollers if needed, providing all equipment as needed by pipe size for pipe assembly, drilling of pilot hole, back reaming, pipe pull-back installation, providing mud slurry, recycling mud slurry mixtures, disposal of all cuttings and debris, excavation if needed of entry or exit pits, minor dewatering, installation of tracing wire along entire bore-path, providing GRU records including boring logs and as-built sketches, backfilling, and site restoration. The Contractor shall be paid separate unit pricing for either GRU furnished pipe material or Contractor furnished pipe material. The Contractor shall be paid for each linear feet of pipe installed complete.

WATER DISTRIBUTION AND RECLAIMED WATER, CASING PIPES:

Items A.132, Install 2” PE Tubing Casing Pipe, DR 13.51: The Contractor shall furnish all labor, equipment, materials, and services for installation of a 2” PE Tubing Casing for a 1” water or reclaimed service by HDD, in accordance with the Contract Documents, including but not limited to mobilization and demobilization, Sunshine 811 Utility Locates, verifying utility depths and locations, joining of pipe segments by heated butt-fused welds, providing pipe rollers if needed, providing all equipment as needed by pipe size for pipe assembly, drilling of pilot hole, back reaming, pipe pull-back installation, providing mud slurry, recycling mud slurry mixtures, disposal of all cuttings and debris, excavation if needed of entry or exit pits, minor dewatering, providing GRU records including boring logs and as-built sketches, backfilling, and site restoration. The Contractor shall be paid for each linear feet of casing pipe installed complete.

Items A.143, Install 4” PE Tubing Casing Pipe, DR 13.51: The Contractor shall furnish all labor, equipment, materials, and services for installation of a 4” PE Tubing Casing for a 2” HDPE water main by HDD, in accordance with the Contract Documents, including but not limited to mobilization and demobilization, Sunshine 811 Utility Locates, verifying utility depths and locations, joining of pipe segments by heated butt-fused welds, providing pipe rollers if needed, providing all equipment as needed by pipe size for pipe assembly, drilling of pilot hole, back reaming, pipe pull-back installation, providing mud slurry, recycling mud slurry mixtures, disposal of all cuttings and debris, excavation if needed of entry or exit pits, excavation and backfill at casing pipe ends, loading of casing with 2” HDPE water main, sealing ends of casing with non-shrink grout, minor dewatering, providing GRU records including boring logs and as-built sketches, backfilling, and site restoration. The Contractor shall be paid for each linear feet of casing pipe installed complete.

Items A.15, Install 6” PE Tubing Casing Pipe, DR 13.5: The Contractor shall furnish all labor, equipment, materials, and services for installation of a 6” PE Tubing Casing for a 4” HDPE water main by HDD, in accordance with the Contract Documents, including but not limited to mobilization and demobilization, Sunshine 811 Utility Locates, verifying utility depths and locations, joining of pipe segments by heated butt-fused welds, providing pipe rollers if needed, providing all equipment as needed by pipe size for pipe assembly, drilling of pilot hole, back reaming, pipe pull-back installation, providing mud slurry, recycling mud slurry mixtures, disposal of all cuttings and debris, excavation if needed of entry or exit pits, excavation and backfill at casing pipe ends, loading of casing with 4” HDPE water main, sealing ends of casing with non-shrink grout, minor dewatering, providing GRU records including boring logs and as-built sketches, backfilling, and site restoration. The Contractor shall be paid for each linear feet of casing pipe installed complete.

WASTEWATER COLLECTION – FORCE MAINS:

Items B.1 to B.65, Install 24”-126” HDPE, DR 11 Force Main Pipe: The Contractor shall furnish all labor, equipment, and services for installation of a 24” – 162” HDPE force main by HDD in accordance with the Contract Documents, including but not limited to mobilization and demobilization, Sunshine 811 Utility Locates, verifying utility depths and locations, joining of pipe segments by heated butt- fused welds, providing pipe rollers if needed, providing all equipment as needed by pipe size for pipe assembly, drilling of pilot hole, back reaming, pipe pull-back installation, providing mud slurry, recycling mud slurry mixtures, disposal of all cuttings and debris, excavation if needed of entry or exit pits, minor dewatering, installation of tracing wire along entire bore-path, providing GRU records including boring logs and as-built sketches, backfilling, and site restoration. The Contractor shall be paid separate unit pricing for either GRU furnished pipe material or Contractor furnished pipe material. The Contractor shall be paid for each linear feet of pipe installed complete.

WASTEWATER COLLECTION – GRAVITY SEWER LATERALS:

Items C.1 to C.2, Install 4”-6” HDPE, DR 11 Gravity Sewer Lateral Pipe: The Contractor shall furnish all labor, equipment, material and services for installation of a 4” – 6” HDPE gravity sewer lateral by HDD in accordance with the Contract Documents, including but not limited to mobilization and demobilization, Sunshine 811 Utility Locates, verifying utility depths and locations, joining of pipe segments by heated butt-fused welds, providing pipe rollers if needed, providing all equipment as needed by pipe size for pipe assembly, drilling of pilot hole, back reaming, pipe pull-back installation, providing mud slurry, recycling mud slurry mixtures, disposal of all cuttings and debris, excavation if needed of entry pits, minor dewatering, installation of tracing wire along entire bore-path, providing GRU records including boring logs and as-built sketches, backfilling, and site restoration. The Contractor shall be paid for each linear feet of pipe installed complete. Bid Items C.3 and C.4 apply for termination of sewer laterals into manholes.

Items C.3 to C.4, HDD Lateral Installations into Manholes: This item shall include additional labor, materials, and equipment necessary for the termination of a 4” or 6” HDPE wastewater lateral into or adjacent to a sewer manhole. Items C.1 and C.2 shall include the costs per foot for the HDD of the sewer lateral pipe.

The Contractor shall be paid on a per-item basis for each lateral installation installed into a manhole.

GAS MAINS:

Items D.1 to D.6: (no further detail required – if needed at a later date, will be provided with Purchase Order).

GRUCom:

Items E.1 to E.34: (no further detail required – if needed at a later date, will be provided with Purchase Order).

GRU Electric:

Items F.1 – F.10, Electric Conduits: The contractor shall install HDPE conduit utilizing the directional bore method of placement and pull mule tape though conduit. The HDPE sizes include; 1 ½” , 2”, 2 ½”, 3” , 4”, and 6”. Material to be supplied by GRU. Parallel conduits may be installed within one (1) bore, which has been oversized to accommodate the second conduit. Such installations shall be used under streets, driveways, sidewalks and other obstructions. The contractor shall dig pits, remove all drilling fluids, and post bore site cleanup and restoration of site back to original condition. The contractor is responsible to provide bore logs and as-built sketches.

ADDITIONAL PRICING:

Item G.1, Premium Work Hours: Premium Work Hours refers to any labor hours performed outside of standard 7:30 AM to 5:30 AM work hours (e.g., nights, weekends, or holidays). Measured as the actual number of hours worked by personnel performing eligible premium-time activities. Hours shall be logged daily on approved timesheets, certified by the contractor’s representative. This rate shall be set at (Pricing Form G.1), and shall only be paid when work outside of the required hours is requested and approved by GRU. Each invoice must include: dates and times of premium hours worked, classification of work (e.g., holiday, weekend, night shift), straight-time rate and applied flat premium, and total premium hours and extended amount. Supporting documentation (e.g., timesheets, logs) must accompany each invoice. (G.1 – G.3 amount inserted after award) Item G.2, Mobilization – HDD (<$1,000 Work Order): Mobilization includes all preparatory work necessary to initiate Horizontal Directional Drilling (HDD) operations at a location where the total Work Order value for HDD is less than $1,000. This encompasses equipment transport, crew mobilization and demobilization, safety setup, temporary field facilities, permits, insurance, bonding, and administrative startup required to commence and complete the drilling work. This item does not include: HDD footage drilling, materials, testing, emergency charges, or any other separate pay items. The mobilization charge shall be set at $ (Pricing Form G.2) Item G.3, Emergency Mobilization: This item shall be applied for emergency work performed by the Contractor during the hours of 7:30 AM and 5:30 PM, Monday through Friday, on the date of notification. Emergency Mobilization covers the unscheduled, rapid deployment of HDD rig, crew, and support equipment in response to urgent, unforeseen conditions (such as an unplanned utility strike, leak, permit delay, or environmental incident). This item includes the mobilization, site setup, and demobilization that arise specifically from an emergency situation and are beyond normal project scheduling The Contractor shall be paid an emergency charge of $ (Pricing Form G.3) for that date.

Items G.4 – G.9, HDPE Adapters: The Contractor shall furnish all labor, equipment, and services for the installation of 4”-16” HDPE to MJ adapters to the plain end of an HDPE pipe installed by HDD. The installation shall include all pipe surface preparation and heated butt-fusion of the joint in accordance with the Contract Documents. The Contractor shall be paid on a per-item basis for each HDPE MJ Adapter installed complete.

Items G.10 – G.15, Fusing of Pipe for Customers per each: The Contractor shall furnish all labor, equipment, and services for the fusing of pipe in accordance with the Contract Documents, including but not limited to mobilization and demobilization, joining of pipe segments by heated butt-fused welds, providing pipe rollers if needed, providing all equipment as needed by pipe size for pipe assembly, disposal of all cuttings and debris, and providing GRU records or documentation. The Contractor shall be paid on a per-item basis for each pipe fusing successfully completed.

Items G.16 – G.19, Hydrostatic and Leakage Testing: The Contractor shall furnish all labor, equipment, and services for the hydrostatic and leakage testing on HDPE or DI pipe joints after installation by HDD, when required by the Contract Documents. The Contractor shall provide all temporary water, equipment, connectors, etc. necessary for successful testing. The Contractor shall be required to obtain a GRU Hydrant Meter for temporary water, as needed. The Contractor will only be paid once successfully passing the hydrostatic and leakage testing, and shall not be paid for any failed testing. All labor, equipment, time, and materials necessary for the Contractor to repair defects found during a failed test shall be provided at no expense to GRU. The Contractor shall be paid for each test successfully passed.

Items G.20 – G.23, Rock Removal: The Contractor furnishing all labor, equipment, and services for the removal of high compressive strength rock from a bore path, or the reinstallation of a bore along a new route in accordance with the requirements in the Contract Documents. The payment for this item shall be on a per-foot basis for all rock encountered and removed along the proposed bore- path.

Items G.24 – G.26, Traffic Control: This item shall include the Contractor furnishing all labor, equipment, and services necessary to providing temporary traffic control around the work zone. The flagman shall be paid per person per hour, and single or multilane closures shall be per setup. All work shall be in accordance with the Contract Documents and applicable FDOT Indexes.

Item F.1, Premium Work Hours: This item shall be a multiplier for premium work, defined as work beyond the specified work hours of 7 AM to 5 PM. This multiplier shall be applied to work outside of these work hours, including but not limited to night-work, weekends, or holidays. This multiplier shall be set at

Item F.3, Emergency Charge: This item shall be applied for emergency work performed by the Contractor during the hours of 7 AM and 5 PM, Monday through Friday, on the date of notification. The Contractor shall be paid an emergency charge of $ for that date.

Items F.4 – F.8, HDPE Adapters: The Contractor shall furnish all labor, equipment, and services for the installation of 4”-12” HDPE to MJ adapters to the plain end of an HDPE pipe installed by HDD. The installation shall include all pipe surface preparation and heated butt-fusion of the joint in accordance with the Contract Documents. The Contractor shall be paid on a per-item basis for each HDPE MJ Adapter installed complete.

Items F.9 – F.11, Hydrostatic and Leakage Testing: The Contractor shall furnish all labor, equipment, and services for the hydrostatic and leakage testing on HDPE or DI pipe joints after installation by HDD, when required by the Contract Documents.

The Contractor shall provide all temporary water, equipment, connectors, etc. necessary for successful testing. The Contractor shall be required to obtain a GRU Hydrant Meter for temporary water, as needed. The Contractor will only be paid once successfully passing the hydrostatic and leakage testing, and shall not be paid for any failed testing. All labor, equipment, time, and materials necessary for the Contractor to repair defects found during a failed test shall be provided at no expense to GRU. The Contractor shall be paid for each test successfully passed.

Items F.12 – F.14, Rock Removal: The Contractor furnishing all labor, equipment, and services for the removal of high compressive strength rock from a bore path, or the reinstallation of a bore along a new route in accordance with the requirements in the Contract Documents. The payment for this item shall be on a per-foot basis for all rock encountered and removed along the proposed bore- path.

Items F.15 – F.17, Traffic Control: This item shall include the Contractor furnishing all labor, equipment, and services necessary to providing temporary traffic control around the work zone. The flagman shall be paid per person per hour, and single or multilane closures shall be per setup. All work shall be in accordance with the Contract Documents and applicable FDOT Indexes.

END OF SECTION

SECTION 01570 – TEMPORARY TRAFFIC CONTROL

GENERAL

SCOPE OF WORK

A. The work to be performed in this section shall include furnishing all equipment, materials, and labor necessary for the safe movement of vehicular and pedestrian traffic around the work zone.

TEMPORARY TRAFFIC CONTROL

A. The temporary traffic control (TTC) provided by the Contractor shall be in strict accordance with the latest edition of the Florida Department of Transportation (FDOT) Design Standards, Index Series 600, in addition to all other City or County codes or ordinances.

B. All road closures or detours, or lane closures on major roadways shall be pre-approved through GRU by the governing authority of the right-of-way owner. The Contractor shall coordinate all work on major roadways with GRU a minimum of 48 hours in advance.

C. The Contractor is responsible for providing and setting up all necessary barricades, channelizing devices, cones, signs, flagmen, lights, and other traffic control devices. All TTC devices used by the Contractor shall be on the FDOT Approved Products List (APL).

D. The Contractor shall ensure that each person responsible for setting up the TTC devices for their work zones shall have an active FDOT Advanced MOT or TTC Certification.

ACCESS

A. Access to commercial property shall not be blocked by the Contractor during the time that a property is open for business, unless it is essential for completing the work and pre-arranged with the property owner by GRU.

B. Access to residential property shall not be blocked unless it is essential to complete the work, and pre-arranged with the property owner by GRU.

END OF SECTION

SECTION 02445 – HORIZONTAL DIRECTIONAL DRILLING

GENERAL

SCOPE OF WORK

A. The work specified in this Section consists of installation of underground piping using the horizontal directional drilling (HDD) method of installation, also commonly referred to as directional boring or guided horizontal boring. This work shall include all services, equipment, materials, and labor to complete a proper installation, testing, and restoration as specified herein.

B. This Specification and Contract shall be applicable for HDD installations involving boring segments less than 600-feet in length, at depths up to 15-feet, and pipes sized 12-inches in diameter and smaller. This generally shall be classified as “Mini-HDD”, which involves thrust or pullback capabilities up to 20,000-lbs and torque less than 950-ft-lbs.

C. All HDD pipe installations will be assigned to the Contractor by GRU on an as needed, when required basis.

RELATED SECTIONS

A. Section 01200, Measurement and Payment B. Section 01570, Temporary Traffic Control C. Section 2500, Water, Wastewater, and Reclaimed Water Piping and Fittings

SUBMITTALS

The following items may be required to be submitted by the Contractor when requested by GRU. If required, the information shall include sufficient detail to show full compliance with this specification:

A. Qualifications: Submit statement of qualifications and records of previous similar jobs.

B. Work Plan: Prior to beginning work, the Contactor shall submit to the GRU a general work plan outlining the procedure and schedule to be used to execute the project. The plan should document the thoughtful planning required to successfully complete the project.

C. Equipment: The Contractor must submit specifications on directional drilling equipment to be used to ensure that the equipment will be adequate to complete the project. This information should include the method of controlling the boring head, head type, pulling force of the equipment, age, reamer types, manufacturer, and drilling rod size and type.

D. Product Pipe: Pipe product submittals shall be covered in Section 2500, but shall be coordinated closely with the HDD installation submittals required in this Section.

E. Drilling Fluids: Submit a complete list of all drilling fluids, additives, and mixtures to be used along with Material Safety Data Sheets.

F. Contingency Plan: Submit a hydraulic fracture (frac-out) contingency plan.

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G. Certificates: Submit statement that Contractor has inspected the drill equipment including the drill rod and determined that they are in satisfactory condition for its intended use.

H. Drilling Logs: Maintain and submit upon completion of work complete drilling logs of guided directional drill operations.

QUALITY ASSURANCE / WARRANTY

A. The Contractor shall be solely responsible for the successful installation of each product pipe. The Contractor shall analyze each installation and make modifications necessary to successfully install each product pipe.

B. The Contractor shall warranty successful installation and craftsmanship for a period of one (1) year from the date of installation.

DELIVERY, STORAGE, AND HANDLING

A. Inspect materials delivered to the site for damage. All materials found during inspection or during the progress of work to have cracks, flaws, surface abrasions, or other defects shall be rejected and removed from the job site.

QUALIFICATIONS

A. All personnel shall be fully trained in their respective duties as part of the directional drilling crew and in safety. (Each person must have been fully trained for over 1,000 hours on all facets of directional drilling, including, but not limited to machine operations, mud mixing, locating, and material fusion.) A responsible representative who is thoroughly familiar with the equipment and type of work to be performed, must be in direct charge and control of the operation at all times. In all cases the supervisor must be continually present at the job site during the actual directional drilling operation. Contractor shall have a sufficient number of competent workers on the job at all times to insure the directional drill is made in a timely and satisfactory manner.

B. The work specified in this Section requires significant previous experience and expertise in similar work to avoid negative impacts to public safety and the environment. Therefore, Contractor performing the work shall be qualified pursuant to GRU’s approval to complete the horizontal directional drilling work specified herein. In order to qualify to perform work specified in this Section, Contractor must provide evidence satisfactory to GRU, including the following:

C. Contractor shall have self-performed work comparable in nature to the scope of work required by this project for a minimum of two years.

D. Contractor shall provide evidence, satisfactory to GRU, of the qualifications of Contractor’s personnel qualifications for the following positions:

E. Contractor’s project manager, superintendent, drill operator, and guidance system operator assigned to horizontal directional drilling shall be experienced in work of this nature and shall have successfully completed projects in the Gainesville area for a minimum of two years.

PRODUCTS

EQUIPMENT

A. The equipment shall consist of a directional drilling rig of sufficient capacity to perform the bore and pullback the pipe, a drilling fluid mixing, delivery, and recovery system of sufficient capacity to successfully complete the drill, a drilling fluid recycling system to remove solids from the drilling fluid so that the fluid can be re-used, a guidance system to accurately guide boring operations, a vacuum truck of sufficient capacity to handle the drilling fluid volume, trained and competent personnel to operate the system. All equipment shall be in good, and safe, operating condition with sufficient supplies, materials and spare parts on hand to maintain the system in good working order for the duration of the project.

B. The directional drilling machine shall consist of a power system to rotate, push and pull hollow drill pipe into the ground at a variable angle while delivering a pressurized fluid mixture to a guidable drill (bore) head. The power system shall be self-contained with sufficient pressure and volume to power drilling operations. The drilling equipment hydraulic system shall be free of leaks. Rig shall have a system to monitor and record maximum pull-back pressure during pull-back operations. The rig shall be grounded during drilling and pull-back operations. There shall be a system to detect electrical current from the drilling string and an audible alarm which automatically sounds when an electrical current is detected.

C. Drill Head: The drill head shall provide the necessary cutting surfaces and fluid jets.

D. Drill Pipe: Shall be constructed of high quality 4130 seamless tubing, grade D or better.

E. Magnetic Guidance System (MGS) or proven gyroscopic system shall be used to provide a continuous and accurate determination of the location of the drill head during the drilling operation. The guidance shall be capable of tracking at all depths up to eighty feet and in any soil condition, including hard rock. It shall enable the driller to guide the drill head by providing immediate information on the tool face, azimuth (horizontal direction), and inclination (vertical direction). The guidance system shall be accurate to +/-2% of the vertical depth of the borehole at sensing position at depths up to one hundred feet and accurate within 1.5 meters horizontally.

F. The Guidance System shall be of a proven type and shall be operated by personnel trained and experienced with this system. Contractor shall be aware of any magnetic anomalies on the surface of the drill path and shall consider such influences in the operation of the guidance system if using a magnetic system. Contractor shall provide and maintain instrumentation necessary to accurately locate the pilot hole (both horizontal and vertical displacements), measure pilot string torsional and axial pressure and measure drilling fluid discharge rate and pressure. GRU Engineering shall have access to instrumentation and readings at all times during operation.

G. Bore Tracking and Monitoring:

At all times during the pilot bore, Contractor shall provide and maintain a bore tracking system that is capable of accurately locating the position of the drill head in the x, y, and z axes. Contractor shall record these data at least once per drill pipe length or every twenty-five (25) feet, whichever is more frequent.

H. Downhole and Surface Grid Tracking System:

Contractor shall monitor and record x, y, and z, and coordinate relative to an established surface survey bench mark. The data shall be continuously monitored and recorded at least once per drill pipe-length or at twenty-five (25) feet, whichever is more frequent.

I. Drilling Fluid Pressures and Flow Rates:

Drilling fluid pressures and flow rates shall be continuously monitored and recorded by Contractor. The pressures shall be monitored at the pump. These measurements shall be made during pilot bore drilling, reaming, and pullback operations.

DRILLING FLUIDS

A. Disposal of fluids is the responsibility of Contractor. Disposal of fluids shall be done in a manner that is in compliance with all permits and applicable federal, state, or local environmental regulations. The bentonite drilling slurry may be recycled for reuse in the hole opening operation, or shall be hauled by Contractor to an approved location or landfill for proper disposal. Contractor shall thoroughly clean entire area of any fluid residue upon completion of pipe installation, and replace any and all existing landscaping plants and sod damaged, discolored or stained by drilling fluids.

B. Mixing System:

A self-contained, closed drilling fluid mixing system shall be of sufficient size to mix and deliver drilling fluid. Mixing system shall continually agitate the drilling fluid during operations.

C. Drilling Fluids:

Drilling fluids shall be composed of clean water, appropriate additives and clay. Water shall be from an authorized source with a minimum pH of 6.0. Water of a lower pH or with excessive calcium shall be treated with the appropriate amount of sodium carbonate or equal. The water and additives shall be mixed thoroughly and be absent of any clumps or clods. No potentially hazardous material may be used in drilling fluid.

D. Delivery System:

The delivery system shall have filters in-line to prevent solids from being pumped into the drill pipe. Connections between the pump and drill pipe shall be relatively leak free. Used drilling fluid and drilling fluid spilled during drilling operations shall be contained and conveyed to the drilling fluid recycling system. A berm, minimum of 12” high, shall be maintained around drill rigs, drilling fluid mixing system, entry and exit pits and drilling fluid cycling system to prevent spills into the surrounding environment. Pumps and/or vacuum truck(s) of sufficient size shall be in place to convey excess drilling fluid from containment areas to storage and recycling facilities.

E. Drilling Fluid Recycling System:

The drilling fluid recycling system shall separate sand, dirt and other solids from the drilling fluid to render the drilling fluid reusable. Spoils separated from the drilling fluid will be stockpiled for later use or disposal.

F. Control of Drilling Fluids:

Contractor shall follow all requirements of the Frac-Out and Surface Spill Contingency Plan as submitted and approved and shall control operational pressures, drilling mud weights, drilling speeds, and any other operational factors required to avoid hydro fracture fluid losses to formations, and control drilling fluid spillage. This includes any spillages or returns at entry and exit locations or at any intermediate point. All inadvertent returns or spills shall be promptly contained and cleaned up. Contractor shall maintain on-site mobile spill removal equipment during all drilling, pre-reaming, reaming and pullback operations and shall be capable of quickly removing spills. Contractor shall immediately notify GRU of any inadvertent returns or spills and immediately contain and clean up the return or spill.

The type of proposed drilling fluid with a complete listing of all additives along with Material Safety Data Sheets shall be submitted for approval before work begins.

Potable water will be made available to the Contractor. This water will be metered and invoiced to the Contractor at GRU’s standard utility rates. The Contractor shall contact GRU New Services at 352-393-1413 to request a temporary hydrant meter.

OTHER EQUIPMENT

A. Pipe rollers, if utilized, shall be of sufficient size to fully support the weight of the pipe while being hydro-tested and during pull-back operations. A sufficient number of rollers shall be used to prevent excess sagging of pipe.

B. Hydraulic or pneumatic pipe rammers may only be used if necessary and with the approval of GRU’s Authorized Project Representative.

C. Other devices or utility placement systems for providing horizontal thrust other than those defined above in the preceding sections shall not be used unless approved by GRU’s Authorized Project Representative prior to commencement of the work. Consideration for approval will be made on an individual basis for each specified location. The proposed device or system will be evaluated prior to approval or rejection on its potential ability to complete the utility placement satisfactorily without undue stoppage and to maintain line and grade within the tolerances prescribed by the particular conditions of the projects.

PRODUCT PIPE

A. The nominal diameter and material type of each product pipe shall be as shown on the Drawings or as assigned by GRU.

B. The piping and fitting requirements are specified in Section 2500.

EXECUTION

GENERAL

A. No work or drilling shall commence until the Contractor has submitted the required information and received approval from GRU regarding the drill path and related procedures.

B. The Contractor shall utilize the Sunshine 811 utility locate system to locate all utilities, structures, etc. within the construction area before any work begins and before equipment is mobilized. The Contractor shall be solely responsible for damage to utilities and shall repair damaged utilities at no cost to GRU.

C. All utilities along the bore path shall be verified and located by the Contractor before beginning the drilling operation. Verifying the utilities shall generally include, but not be limited to, hand digging, soft digging, vacuum excavation, or other non-destructive means of verifying a utilities depth and location.

D. Before drilling operations begin, all erosion control devices and dewatering shall be in- place and functional, if needed based on site conditions.

E. The boring rig shall be sufficiently and adequately anchored for the task.

F. Directional drilling equipment machine safety requirements shall include common grounding system to prevent electrical shock in the event of underground electrical cable strike. The grounding system shall connect all pieces of interconnecting machinery; the drill, mud mixing system, drill power unit, drill rod trailer, operator’s booth, worker grounding mats, and any other interconnected equipment to a common ground. The drill shall be equipped with an "electrical strike" audible and visual warning system that will notify the system operators of an electrical strike.

G. The Contractor shall be responsible for transporting, containing, and storing any water required for the drilling operations, cleanup, and other needs.

H. All drilling fluid excess shall be contained in entry and/or exit pits and pumped/treated/stored as needed to preclude spills and escape to the surrounding environment. Ensure that entry and exit pits are of sufficient size and volume to contain the expected return of drilling fluids and cuttings.

I. Drilling fluid returns can be collected in the entrance pit, exit pit, or spoils recovery pit. The Contractor shall immediately clean up any drilling fluid spills or overflows from these pits.

J. Disposal of the drilling fluids shall be the responsibility of the Contractor and shall be conducted in compliance with all relative environmental regulations, right-of-way and work space agreements, and permit requirements.

K. The product pipe shall be installed within the limits indicated on the Drawings.

DRILL SET-UP AND PITS

A. The Contractor may use the set-up areas identified on the Drawings or agreed upon with a GRU Representative. If additional areas are required, the Contractor shall be responsible for coordinating the additional areas at no additional cost to GRU.

B. Drill entrance and exit pits are required. The Contractor shall be responsible for design and construction of the drill entrance and exit pits.

C. The drill entrance and exit pits shall be maintained at minimum size to allow only the minimum amount of drilling fluid storage prior to transfer to mud recycling or processing system or removal from the site.

D. Drilling mud shall not be allowed to flow freely on the site or around the entrance or exit pits. Erosion and sediment control devices shall be set up around each pit. Mud spilled shall be removed as soon as possible and the ground restored to original condition. Pits shall be shored to OSHA standards.

DRILL ENTRANCE AND EXIT ANGLE

A. The entrance and exit angles shall such that the elevation profile maintains adequate cover to reduce risk of frac-out and that ground exit occurs as specified herein. Contractor shall be responsible for ensuring that entrance and exit angles ensure pullback forces do not over stress the pipe.

B. In no case shall the entry or exit angles of the installed pipeline shall be less than 8 degrees from the horizontal and or more than 18 degrees from the horizontal.

PILOT HOLE

A. A pilot hole shall be drilled for all product pipe installations.

B. The type and size of the pilot string cutting head and the diameter of the drill rod shall be selected by the Contractor for each specific application.

C. The cutting head shall be assisted by and cooled by drilling fluid of low pressure and volume.

D. The pilot hole shall be drilled along the approved path. Pilot-hole tolerances are as follows:

Vertical tolerance: +/- 1-foot from the…