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8181 - Scope of Work Page 1 of 19 SCOPE OF WORK RFP #8181 Transmission Mains Condition Assessment Description: Procure a Professional Services Agreement from a qualified firm to assess the condition of large-diameter high-priority water transmission pipes greater than or equal to 14 inches in diameter and sewer force mains on an as-needed basis, within the City of Denton to provide repair, rehabilitation, and/or replacement recommendations. This agreement will be for five years: a three-year period followed by two one-year options to renew. Background: Denton Texas has a population size of 139,892, owns, and operates many pipelines that convey raw water-to-water treatment facilities, and treated water to the City’s water distribution system. There are 642 miles of water main, 25.85 miles of sewer force mains, and 35,601 feet of high-priority large-diameter water transmission pipes. The City would like to enter into a long-term agreement for a condition assessment of the large- diameter high-priority water transmission pipes greater than or equal to 14 inches in diameter and sewer force on an as-needed basis. It is anticipated that bar-wrapped pipelines up to 60” will be evaluated under this agreement. The 54” finish water at Ray Roberts Water Treatment Plant that is going to town and the 60” raw water line to the plant need an inspection. The 27” and the 30” raw water lines at Lake Lewisville Treatment Plant have already been inspected. GENERAL REQUIREMENTS: • The Contractor shall produce a project schedule to be approved by the City at the beginning of the project. The Consultant shall update the schedule monthly with the project’s progress. If delayed, the Consultant shall document reasons for any project delays and indicate how the project may be brought back on schedule or shall get written approval from the City to revise the schedule. • Develop a work plan, and project task schedule, and provide monthly progress/status reports of sufficient detail to support monthly billings. The monthly status report shall be consistent with the billing period. • Sub-contracts for any work shall have the following clauses in their contract:” Sub- consultants shall submit a CD containing all findings, drawings files, etc., for each section with submittal for review, and sub-consultant firms shall be available to meet with the City and primary consultant within a reasonable time.” • Identify, coordinate, and conform this project to meet legal and regulatory parameters/constraints, codes, and requirements set forth by Federal, State, and local agencies, including but not limited to the following identified agencies: Americans with Disabilities Act (ADA), USEPA, National Fire Protection Association (NFPA), Occupational Safety and Health Act (OSHA), TCEQ, Uniform Fire Code (UFC), International Building Code (IBC), National Electric Code (NEC), and Standard Corrosion Guidelines. The design will conform to the most recent edition of codes as of the date of this contract. Should other agencies or requirements not existing or applicable at the time of the execution of this Agreement be identified during the design, notify the City of the requirements and request authorization to conform to the design. Page 2 of 19 • Promptly advise the Utility’s Project Manager of comments/requests that are out of scope or will affect the cost. Written approval is required before proceeding with work by the consultant team on any out-of-scope items. Work performed without prior written approval from the Project Manager will be deemed to be within the scope of work and will not be subject to additional compensation. Note that the Utility’s Project Manager does not have the authority to authorize work over the contract amount awarded by Council. The Consultant team shall not perform any additional work over that amount without written approval from the Utility Director or receipt of a Supplemental Agreement that has been approved by the Denton City Council. • Use existing information, reports, surveys, and available data, as applicable. • Provide internal quality control for deliverables before submission to the Utility. • Evaluate Utility’s comments and coordinate responses between Utility’s Project Manager and Consulting Project Manager. Incorporate responses, as appropriate into reports. Inform the Utility’s Project Manager, in writing, of the project budget impact of comments. • The Consultant shall document the tasks performed, evaluation results, and recommendations developed as part of the report. The condition assessment report shall present a proposed implementation plan for recommended repairs, including a future timeline. The final report format as directed by the City shall include but not be limited to the following: A brief, clear and precise executive summary; Binding or as directed by Denton Water Utilities with Plastic Laminated Cover, and an Electronic version. • Format for reports files shall be in PDF format. SCOPE OF WORK REQUIREMENTS: City of Denton’s Responsibilities: 1. Drain pipelines when necessary for inspection. 2. Provide an insertion point to accommodate the technology that is being utilized. 3. Provide access to each insertion point. 4. Provide at least one attendant during an inspection. 5. Provide traffic control where required. 6. Identify pipelines to be inspected. 7. COD will export GIS data for the contractor to incorporate into their data so that they have COD facility ids. The project scope requires that: The contractor will be required to conduct: • A review of existing information, a site reconnaissance, meetings with City of Denton operations and engineering, and development of a detailed project-planning document addressing all phases of the project. • A workshop with the City of Denton to review the project planning document and ensure that all parties involved clearly understand their roles and responsibilities. • Contractor will provide crew and equipment for inspection and examination of the exposed pipe. This determines the accuracy of the equipment used to inspect the pipeline. This information will be helpful to the City and the contractor for any future inspections. Page 3 of 19 • Supply staff with all safety equipment necessary for the inspection such as calibrated gas detectors, lifting harnesses, communication devices, safety ropes, and other pertinent personal protective equipment. • Supply vehicles/equipment enabling the delivery of staff and testing equipment to project locations as necessary. • Collect the appropriate data to detect localized wall loss on the steel cylinder in Bar Wrapped Pipe (BWP) and broken wraps in BWP. • Detect a minimum of five (5) consecutive broken wire wraps on PCCP and BWP. Detect a defect of at least 3-inch diameter 30% defect in the cylinder of steel or BWP. • Ensure representatives performing the inspection are confined space trained and meet OSHA standards for confined space. • Quantify the extent of damage found and provide any defect’s axial and clock location. • Provide examples of calibration curves generated from BWP pipe. The vendor must be able to provide detailed data regarding how these curves are used to estimate the pipe damage. • Provide a draft inspection report within two (2) weeks of the inspection • Mark on the ground all leaks detected SCOPE OF WORK FOR PRESSURIZED MAINS GROUP 1 - REQUIREMENTS FOR INTERNAL TETHERED LEAK AND GAS POCKET INSPECTION WITH VIDEO This specification covers the requirements for conducting leak assessments within the City of Denton pipelines. The leak assessment shall be performed internally while the pipeline remains in service or using a pull tape with no flow. A sensor head (tethered device) is inserted into a live pipeline carried by the flow of water or pulled by tape with no flow. The sensor will travel through the pipeline pinpointing the exact location of the leak(s). Leaks are identified by the distinctive acoustic signals generated at the pipe wall. Requirements: A. Perform the inspection in a non-destructive manner, while the pipeline is in service or under pressure of at least 15 psi, using real-time data. B. Be capable of inspecting multiple pipeline material types including Pre-stressed Concrete Cylinder Pipe (PCCP), Reinforced Concrete Cylinder Pipe (RCCP), Asbestos Cement (AC) Pipe, Polyvinyl Chloride (PVC), High-Density Polyethylene (HDPE), Glass Reinforced Polymer (GRP), Steel, Cast Iron, and Ductile Iron Pipe. C. Be capable of inspecting diameters 6-inch and larger. D. Be able to insert system into the pipeline without de-pressurizing up to 250 psi (non-pull tape method). E. Be capable of advancing, halting, and retrieving the device during the time of assessment. Page 4 of 19 F. Be capable of interchanging technologies, on job site, to perform Closed-Circuit Television (CCTV) video inspection and leak detection (non-pull tape method). G. Be able to detect multiple leaks in one section of pipe during the time of assessment. H. Be able to track the device from the surface in real-time during the inspection, providing at least 3 ft. accurate surface locations both along the length of the pipeline as well as laterally for cases where the exact pipe alignment is not known and provide Global Positioning System (GPS) data. I. Be able to deploy and operate the device within the pipeline at a minimum flow rate of 1 ft per second (non-pull tape method). J. Enter the pipeline through a minimum 2-inch I.D. opening with 2-inch full port valve. K. Be able to disinfect the device prior to deployment within the potable pipeline. Devices previously deployed within wastewater piping systems are not to be utilized within potable water pipelines. L. Detect leaks as small as 0.05 gallons per minute at 15 PSI. M. Be capable of locating leaks within 12 inches of the exact location. N. Be capable of providing preliminary results on-site during the inspection. O. Be able to mobilize staff and equipment to begin analysis of the pipeline within 48 hours (or less) of notification from the City of Denton (non-pull tape method only). P. Provide mapping grade GPS surface markings depicting the location of the pipeline every 300 feet and at each bend as requested, to allow accurate updating of Geographic Information System (GIS) databases. Q. Provide a detailed report of pipeline segment(s) assessed within GIS format using mapping-grade GPS data. GIS data must be compatible with the City of Denton GIS system. The report must include the location and rating/size of each leak detected during the assessment. R. Reports and deliverables shall be submitted in hard copies (three copies) and electronic format with database, information viewable in ArcMap with all pertinent information. Report should include at minimum; an executive summary, a location map of the project, indicating the start and end of the project, the date started, and date completed, tables with pertinent information, pictures, videos of CCTV (non- pull tape method), and any other information necessary for the project. The conclusion shall be clear and concise depicting the condition of the pipe at the time of inspection. Database tables will be named clearly identifying the information. The database will be the property of the City of Denton and information will not be shared without prior written approval from the City of Denton staff responsible for the project/inspection. Page 5 of 19 S. Provide a minimum of five (5) comparable references, within the past 24 months, where pipelines have been surveyed in a single deployment for distances of 3,500 feet or more. T. Provide evidence with bid packet that the technology has been successfully proven and utilized on a minimum of 1500 miles of pipeline with more than 1500 leaks found. GROUP 2 - REQUIREMENTS FOR NON-FLOW INTERNAL TETHERED LEAK AND GAS POCKET INSPECTION WITH VIDEO (Not very common to use this method historically however DWU uses it for brand new large diameter pipelines that the construction contractor is required to use before it is put into service) This specification covers the requirements for conducting leak assessments within the City of Denton pipelines. The leak assessment shall be performed internally while the pipeline remains in service or using a pull tape with no flow. A sensor head (tethered device) is inserted into a live pipeline carried by the flow of water or pulled by tape with no flow. The sensor will travel through the pipeline pinpointing the exact location of leak(s). Leaks are identified by the distinctive acoustic signals generated at the pipe wall. Requirements: A. Perform the inspection in a non-destructive manner, while the pipeline is in service or under pressure of at least 15 psi, using real-time data to be able to inspect pipelines without flow. B. Be capable of inspecting multiple pipeline material types including Pre-stressed Concrete Cylinder Pipe (PCCP), Reinforced Concrete Cylinder Pipe (RCCP), Asbestos Cement (AC) Pipe, Polyvinyl Chloride (PVC), High-Density Polyethylene (HDPE), Glass Reinforced Polymer (GRP), Steel, Cast Iron, and Ductile Iron Pipe. C. Be capable of inspecting diameters 10-inch and larger. D. Be able to insert system into pipeline without de-pressurizing up to 200 psi (non- pull tape method). E. Be capable of advancing, halting, and retrieving device during time of assessment. F. Be capable of interchanging technologies, on jobsite, to perform Closed-Circuit Television (CCTV) video inspection and leak detection. G. Be able to detect multiple leaks in one section of pipe during time of assessment. H. Be able to track the device from the surface in real-time during the inspection, providing at least 3 ft. accurate surface locations both along the length of the pipeline as well as laterally for cases where the exact pipe alignment is not known and provide Global Positioning System (GPS) data. I. Enter the pipeline through a minimum 2-inch I.D. opening. Page 6 of 19 J. Be able to disinfect the device prior to deployment within potable pipeline. Devices previously deployed within wastewater piping systems are not to be utilized within potable water pipelines. K. Detect leaks as small as 0.01 gallons per minute at 90 psi of pressure and 0.1 gallons per minute at 25 psi. L. Be capable of locating leaks within 12 inches of the exact location. M. Be capable of providing preliminary results to City of Denton staff on-site during the inspection. N. Be able to mobilize staff and equipment to begin analysis of pipeline within 48 hours (or less) of notification from the City of Denton (non-pull tape method only). O. Provide mapping grade GPS surface markings depicting the location of the pipeline every 300 feet and at each bend as requested, to allow accurate updating of Geographic Information System (GIS) databases. P. Provide a detailed report of pipeline segment(s) assessed within GIS format using mapping-grade GPS data. GIS data must be compatible with the City of Denton GIS system. The report must include the location and rating/size of each leak detected during assessment. Q. Reports and deliverables shall be submitted in hard copies (three copies) and electronic format with database, information viewable in ArcMap with all pertinent information. The report should include at minimum; an executive summary, a location map of the project, indicating the start and end of the project, the date started, and date completed, tables with pertinent information, pictures, videos of CCTV (non-pull tape method), and any other information necessary for the project. The conclusion shall be clear and concise depicting the condition of the pipe at the time of inspection. Database tables will be named clearly identifying the information. The database will be the property of the City of Denton and information will not be shared without prior written approval from the City of Denton staff responsible for the project/inspection. GROUP 3 - REQUIREMENTS FOR INTERNAL NON-TETHERED FREE-SWIMMING LEAK AND GAS POCKET INSPECTION (Smart Ball technology) This specification covers the requirements for conducting non-tethered free-swimming leak assessments. The leak assessment shall be performed internally while the pipeline remains in service. A free-swimming acoustic leak detection system is inserted into a live water main carried by the flow of water. The device will travel through the pipeline detecting leak(s) and gas pockets. Requirements: A. The method/device must be capable of entering and exiting a fully operating and flowing pipeline, while the pipeline remains in service and flowing at one (1) foot per second or greater and the method/device must be able to detect and locate multiple leaks and/or gas pockets over the entire length of a pipeline inspected Page 7 of 19 under a single deployment. B. The method/device must have the ability to map the alignment of the pipeline being inspected to identify the location and degree of all bends. The pipeline alignment and suspected level of accuracy must be provided in a geodatabase and the method/device must be capable of identifying pipeline alignment discrepancies between the recorded data and as-built pipeline drawings or existing GIS. C. The survey shall be performed in a non-destructive manner and the method/device must have the ability to survey pipelines with an inside diameter of six (6) inches or larger and D. The method/device must be capable of operating inside a pipeline with a minimum flow velocity of one (1) foot per second and the method must be able to actively track and determine the location of the device within the pipeline during the inspection in real-time. E. The device must be able to be located inside the pipeline from known tracking locations at a minimum distance of 3000 feet between the device and the known location the method shall be capable of calculating the instantaneous velocity of the device to predict the arrival time of the device at downstream pipeline features and identify changes in the velocity of the device between tracking sensors. F. The method/device must be capable of inspecting pipelines with partially open offtake valves, allowing offtake service to continue throughout the inspection and the method/device must be capable of confirming the device is approaching and leaving pipeline offtakes, allowing for off take valves to be left open and in-service for a maximum amount of time. G. The method/device must be capable of entering and exiting the pipeline through a minimum access of four (4) inches equipped with a corresponding full port valve and the method/device must be capable of utilizing hydrants to enter and exit pipelines. H. The method/device must be capable of recording data for up to 24 hours and the device must be capable of entering or exiting a pipeline while operating at pressures up to 500 psi. I. The device must be capable of recording the pipeline operating pressure throughout the inspection. The device must be capable of recording temperature throughout the inspection and the device must be capable of operating in temperature conditions up to 150 degrees Fahrenheit. J. The post-survey report shall include an executive summary, a location map of the project that indicates the start and end point, survey date(s), tables with pertinent information, photographs, any other information necessary for the project, and the location of leaks and gas pockets. K. The method/device must have the ability to categorize detected leaks as originating from the pipe barrel, pipe joint, or a pipe feature and the method/device must be capable of inspecting multiple pipeline material types, including steel, cast Page 8 of 19 iron, ductile iron, pre-stressed concrete cylinder pipe, concrete pressure pipe, reinforced concrete pipe, asbestos cement, polyvinyl chloride, high-density polyethylene, and glass reinforced plastic. L. The Vendor must ensure representatives performing the testing are confined space trained and meet local and or national standards for confined space entry and the Vendor’s representatives must be equipped with calibrated gas monitors, lifting harnesses, safety lines, and all other required safety equipment to ensure their welfare while entering confined spaces. M. The Vendor must provide a minimum of five (5) references, within past 24 months, where pipelines have been surveyed and the results verified. The contractor must provide contact information for each reference and the Vendor must provide documentation showing the technology has been successfully utilized on a minimum of 7000 miles of pipeline and reported over 3000 leaks. N. The Vendor must provide resumes of the key people who will execute the field work, and who have at least three (3) years of experience and the Vendor’s Project Manager must have at least five (5) years of experience leading inline inspections on pressurized in-service pipelines and be available to consult with the pipeline owner to plan the inspection and oversee the field work during the inspection. O. The vendor must demonstrate they have sufficient personnel and equipment available to perform the site visit and inspection according to the schedule of the pipeline owner. (POTABLE WATER ONLY) The vendor must certify the device and accompanying inspection equipment has only been used in potable drinking water P. The Vendor must be able to identify and investigate leaks larger than two (2) gallons per minute within 24 hours of the inspection. GROUP 4 - REQUIREMENTS FOR MANNED ELECTROMAGNETIC NONDESTRUCTIVE INSPECTION This specification covers the requirements for detecting and quantifying the number of broken wires within all types of Pre-stressed Concrete Cylinder Pipe (PCCP). The PCCP assessment involves an exciter coil that is used to induce a small electrical current in the steel wires and steel cylinder. The current in the steel wires then induces a small current in a second coil called the detector. The amplitude and phase of the signal received at the detector will change depending on if the steel wire is broken or not. The change in the detector signal is then analyzed and an estimate of the number of broken wires is given. Requirements: A. Perform the test in a non-destructive manner. B. Submit results in a GIS format using mapping-grade GPS data and that is compatible with the City of Denton GIS system. C. Have the capability of mobilizing and beginning an inspection within 48 hours (or less) of notification by City of Denton Page 9 of 19 D. Have a range of mechanical and manpowered systems to accommodate pipe diameters from 36 inches to 210 inches. E. Have a detailed library of EM signals based on different features, pipe diameters and pipe types which will allow it to make informed judgments on the condition of pipelines. F. Have a range of mechanical and manpowered systems to accommodate various degrees of bends and angles that are enveloped with water (tributary crossings) and earth. G. Be capable of performing an assessment of pipeline externally using electromagnetics (V-Tool). H. Be able to track all versions of testing equipment from above ground during assessment. I. Be capable of comparing results to previous Pure EM inspection results, using the same calibration curve for both data sets. J. Provide City of Denton with preventative maintenance records pertaining to device being utilized for each location. Records should indicate the type of maintenance required for device, recommended intervals and history of maintenance performed within previous eighteen (18) months of request. K. Reports and deliverables shall be submitted in hard copies (three copies) and electronic format with database, information viewable in ArcMap with all pertinent information. Report should include at minimum; executive summary, location map of the project, indicating start and end of project, start and completion dates, tables with pertinent information, pictures, videos if it helps understand the condition, and any other information necessary for the project. Conclusion shall be clear and concise depicting the condition of pipe at the time of inspection. Database tables will be named clearly identifying the information. Database will be the property of the City of Denton and information will not be shared without prior written approval from the City of Denton staff responsible for the project/inspection. L. Provide examples of calibration curves generated from various pipe types including LCP, ECP, and ECP with shorting straps. The vendor must be able to provide detailed data regarding how these curves are used to estimate the pipe damage with the bid packet. GROUP 5 - REQUIREMENTS FOR INTERNAL ROBOTIC ELECTROMAGNETIC NONDESTRUCTIVE INSPECTION This specification covers the requirements for detecting and quantifying the number of broken wires within all types of Pre-stressed Concrete Cylinder Pipe (PCCP) and Bar- Wrapped pipelines (BWP), and locating areas of concern in Metallic pipelines using a tethered robot fitted with multiple sensors and placed into a depressurized pipeline. As the inspection vehicle travels down the pipeline data from multiple sensors are collected. When the inspection is completed, the vehicle is pulled back via its tether or drives back by itself Page 10 of 19 to the entry point. Data can include ovality/deflection, shape, diameter, corrosion/pipe wall loss, sediment volume, and slope, bend radius, condition of joints, and cracks. The currently approved brand is PureRobotics™ or approved equal. Requirements: A. Perform the test in a non-destructive manner. B. Be capable of advancing and retrieving device during time of assessment. C. The equipment shall be capable of being inserted and extracted through an 18- inch diameter access into a depressurized pipeline. D. Perform an internal assessment within a depressurized pipeline with portions of pipeline filled with water where 100 psi or less is applied to the robot. E. Have a range of mechanical and manpowered systems to accommodate pipe diameters from 16-inches to 120-inches. F. Collect digital video for visual assessment, laser profiling and sonar data, and support high accuracy mapping with inertial measurement unit (IMU) capabilities. G. Collect the appropriate data to detect localized wall loss on the cylinder in BWP, DIP, Steel, and broken wraps in BWP and PCCP. H. Detect a minimum of five (5) consecutive broken wire wraps on PCCP and BWP. Detect a defect of at least 3-inch diameter 30% defect in the cylinder of steel, ductile iron, or BWP. I. Pass valves and other configurations common to transmission mains during the inspection. J. Track all testing equipment from above ground during the inspection. K. Ensure representatives performing the inspection are confined space trained and meet OSHA standards for confined space. L. Supply staff with all safety equipment necessary for the inspection such as calibrated gas detectors, lifting harnesses, communication devices, safety ropes and other pertinent personal protective equipment. M. Supply vehicles/equipment enabling the delivery of staff and testing equipment to project locations as necessary. N. Classify anomalies found based on a detailed signal library as features, damage or other as applicable. O. Quantify the extent of damage found and provide the location of the defect. Page 11 of 19 P. Provide examples of calibration curves generated from various pipe types including BWP, DIP, Steel, and PCCP. The vendor must be able to provide detailed data regarding how these curves are used to estimate the pipe damage. Q. Report should include at minimum; executive summary, location map of the project, indicating start and end of project, start and completion dates, tables with pertinent information, pictures, videos if it helps understand the condition, and any other information necessary for the project. Conclusion shall be clear and concise depicting the condition of pipe at the time of inspection. Database tables will be named clearly identifying the information. R. Provide evidence with bid packet that the technology has been utilized on a minimum of 200 miles of pipeline. GROUP 6 - REQUIREMENTS FOR INTERNAL FREE SWIMMING ELECTROMAGNETIC NONDESTRUCTIVE INSPECTION CAPABLE OF PASSING BUTTERFLY VALVES This specification covers the requirements for detecting and quantifying the number of broken wires within all types of Pre-stressed Concrete Cylinder Pipe (PCCP) and Bar- Wrapped pipelines (BWP); and locating areas of concern in Metallic pipelines in a free- swimming nondestructive manner. The assessment involves an exciter coil that is used to induce a small electrical current in the steel wires. The current in the steel wires then induces a small current in a second coil called the detector. The amplitude and phase of the signal received at the detector will change depending on if the steel wire is broken or not. The change in the detector signal is then analyzed and an estimate of the number of broken wires is given. Inspections provide a medium resolution assessment of metallic pipelines by detecting significant defect and wall loss. The current approved brand is PipeDiver® or approved equal. Requirements: A. Perform the non-destructive inspection while the pipe remains in service. B. Collect the appropriate data to detect localized wall loss on the cylinder in BWP, DIP, Steel and broken wraps in BWP and PCCP. Collect video data for visual assessment (for water mains only). C. Detect a minimum of five (5) consecutive broken wire wraps on PCCP and BWP. Detect a defect at least 3-inch diameter 30% defect in the cylinder of steel, ductile iron or BWP. D. Inspect pipelines that are 18-inch and larger in diameter. E. Pass butterfly valves, gate valves and other configurations common to transmission mains during the inspection. F. Track all testing equipment from above ground during the inspection. Supply and install any equipment necessary for tracking (access by others). Page 12 of 19 G. Ensure representatives performing the inspection are confined space trained and meet OSHA standards for confined space. Certifications must be presented to City of Denton upon request. H. Supply staff with all safety equipment necessary for the inspection such as calibrated gas detectors, lifting harnesses, communication devices, safety ropes and other pertinent personal protective equipment. I. Supply vehicles/equipment enabling the delivery of staff and testing equipment to project locations as necessary. J. Classify anomalies found based on a detailed signal library as features, damage or other as applicable. K. Quantify the extent of damage found and provide the location of the defect. L. Compare results to previous inspections, where applicable, using the same calibration curve for both data sets. M. Provide examples of calibration curves generated from various pipe types including BWP, DIP, Steel, and PCCP. The vendor must be able to provide detailed data regarding how these curves are used to estimate the pipe damage. N. Submit results in a GIS format using mapping-grade GPS data and that is compatible with the City of Denton GIS system. O. Reports and deliverables shall be submitted in electronic version and with geo-database. P. Report should include at minimum; executive summary, location map of the project, indicating start and end of project, start and completion dates, tables with pertinent information, pictures, videos if it helps understand the condition, and any other information necessary for the project. Conclusion shall be clear and concise depicting the condition of pipe at the time of inspection. Database tables will be named clearly identifying the information. Database will be the property of the City of Denton and information will not be shared without prior written approval from the City of Denton staff responsible for the project/inspection. Q. Provide five (5) examples of electromagnetic/wall thickness free swimming inspections projects where the tool is capable of passing butterfly vales. The vendor must provide where data quality and accuracy has been verified. R. Provide evidence with bid packet that the technology has been utilized on a minimum of 200 miles of pipeline. Page 13 of 19 GROUP 7 - REQUIREMENTS FOR FREE-SWIMMING ULTRASONIC INSPECTION TECHNOLOGY This specification covers the requirements for using ultrasonic technology to assess the structural integrity of metallic pipe (ductile iron pipe (DIP), cast iron pipe (CIP) or steel pipe). Further, this specification covers the requirements for detecting and quantifying cylinder corrosion in metallic pipe (ductile iron pipe (DIP), cast iron pipe (CIP) or steel pipe). The current approved delivery platform is PipeDiver® Ultra Requirements: A. Perform the ultrasonic wall thickness measurements with a free-swimming inspection tool in a non-destructive manner. B. The free-swimming ultrasonic inspection tool shall be capable of passing butterfly valves. C. The technology shall be able to differentiate between exterior and interior wall defects. D. The technology shall be able to detect outlets or other appurtenances. E. The technology shall be able to provide ovality data and identify liner defects. F. Submit results in a pipe-by-pipe geospatial GIS deliverable (geodatabase) that is compatible with the City of Denton’s GIS system. G. The Company shall track the progress of the tool as it traverses the pipeline. CLIENT will make provisions for the Company to install external sensors for tracking the free-swimming inspection device. Company may be requested to install potholes via vacuum extraction to assist in tracking the device. H. The Company shall provide evidence that all Company personnel have been trained in accordance with OSHA safety and confined space requirements and shall provide such certification upon request. I. The Company’s personnel must be equipped with calibrated gas monitors, lifting harnesses, safety ropes, and all other miscellaneous safety apparel to ensure the welfare of their personnel. J. The Company shall furnish its personnel with appropriate off-road vehicle/equipment enabling the delivery of staff and testing equipment to rural project locations. K. The Company will advise CLIENT as to logistical support requirements including required rate of flow and operating pressure. L. The Company will advise CLIENT with respect to insertion and extraction requirements. M. The Company shall maintain a comprehensive database of ultrasonic signals based on different features, pipe diameters and pipe types which will allow it to make informed judgments on the condition of pipelines. N. CLIENT will accommodate insertion and retrieval of the free-swimming tool under de-pressurized conditions. O. CLIENT will furnish 12-inch diameter access for insertion and retrieval of the free-swimming tool. Company may be requested to furnish and install access for deployment of the tool. P. The ultrasonic inspection will serve as a high-resolution technology capable of identifying wall loss due to corrosion on the steel cylinder. On metallic pipe 52in and smaller in diameter, the ultrasonic inspection shall be capable of identifying and locating areas of corrosion 2 inches by 2 inches with 20% wall loss or greater. Page 14 of 19 Q. Reports and deliverables shall be submitted in hard copies (two copies) and electronic format with database. Report should include at minimum; executive summary, location map of the project, indicating start and end of project, date started, and date completed tables with pertinent information, photographs and any other information necessary for the project. Conclusion shall be clear and concise depicting the condition of pipe. Database tables will be named clearly identifying the information. Data will be the property of CLIENT and information will not be shared without prior written approval from CLIENT. R. As part of the proposal, the Company shall submit a minimum of five (5) comparable project references, within the past twelve (12) months, where pipelines have been surveyed and the results reported. The Company must provide the contact information of the clients and name of respective agency with the bid packet. S. If requested, the PipeDiver can be equipped with fixed CCTV cameras on the rear petals of the device, able to capture and record video from each of the three (3) cameras. Real time viewing is not available. A copy of the video recording will be submitted as part of the final report. T. The Company shall provide evidence with the proposal packet that the tool has been successfully proven and platform utilized on a minimum of 1,000 miles of pipeline. U. The Company shall develop a Pipe Performance Risk Curve based on 3D finite element analysis for each pipe design, or as may be required. GROUP 8 - REQUIREMENTS FOR REMOTE TRANSIENT PRESSURE MONITORING This specification covers the requirements for monitoring and recording of pressures acting on a pipeline. The process involves the attachment of sensor to pipeline, transferring activities to data acquisition unit. The pressure is recorded at set intervals during steady state conditions and increases when a transient pressure is detected. The current approved brand is Telog or approved equal. Requirements: A. Perform the analysis in a nondestructive manner. B. Have the capability of mobilizing and begin monitoring within 48 hours (or less) of notification by City of Denton. C. Be capable of increasing the sample rate up to 32 times per second when transient pressure occurs within pipeline. High-rate sampling trigger should be individually programmable based on a user defined change in pressure within a user defined period of time. D. Provide a portable system that can be remotely powered. Support mechanisms must be easily securable with weather resistant cables. E. Use sensors that cover all pressure ranges from -14.7 psi to 300 psi. F. Be capable of installing system while pipeline remains in service. Page 15 of 19 G. Have adequate staff onsite during services. This shall include staff and availability for periodic retrieval and download of recorded pressure and transient data as required by monitoring interval and recorder settings. H. Be capable of remotely downloading data using wireless data transmission. I. Be able to perform required services on all pipe materials and sizes. J. When applicable, reports and deliverables shall be submitted in hard copies (three copies) and electronic format with database, information viewable in ArcMap with all pertinent information. Report should include at minimum; executive summary, location map of the project, start and completion dates, tables with pertinent information, pictures, and any other information necessary for the project. Conclusion shall be clear and concise depicting findings. Database tables will be named clearly identifying the information. Database will be the property of the City of Denton and information will not be shared without prior written approval from the City of Denton staff responsible for the project/inspection. K. Wireless transient pressure monitoring units may be allowed where installation site and application permit. Wireless transient pressure monitoring units shall be supplied as complete units, including integrated communications for use on existing wireless networks, with all wireless communication requirements (SIM card, data plan, data hosting, web portal) included in comprehensive package. Wireless units shall be supplied by a manufacturer who has been in business with a history of providing remote sensor units for a minimum of five (5) years. L. All installations shall include a shut-off valve, and analog pressure gauge for verification of recorded pressures. M. Provide five (5) examples of monitoring projects. The vendor must provide where accuracy has been verified. The vendor must provide the contact information of the clients with the bid packet. GROUP 9 - REQUIREMENTS FOR ACOUSTIC FIBER OPTIC (AFO) MONITORING OF PCCP This specification covers requirements for the installation and operation of an Acoustic Fiber Optic (AFO) pipeline monitoring system in pre-stressed concrete cylinder pipelines (PCCP). An AFO System is installed while the pipeline is dewatered and will continuously monitor the pipeline while in service. The AFO System is designed to detect energy signals that are generated by wire breaks as they occur. The system should identify and report these events to the City of Denton in near real-time. Requirements: A. Such system must provide continuous, twenty-four (24) hour monitoring of acoustic events of the City of Denton’ pipeline at the specified site. B. Such system must be operational for a period of not less than 95% aggregate time on an annual basis, excluding power outages or other events outside the control Page 16 of 19 of the vendor. System uptime is to be calculated as the successful percentage of the simulated verifications captured that are played by the system once per hour each day. C. Such system must allow remote operation of the AFO System to enable continuous recording of acoustic events. D. Operation of the AFO System must include hourly simulated verifications, daily remote site checks, and an annual site visit. E. Vendor must provide continuous downloading of data to a Vendor-based central server. F. Vendor must provide continuous event processing by the Vendor’s data processing department as long as internet connection to the system is available. G. Vendor shall include three (3) years of monitoring and warranty with each system installed H. Vendor must be able to detect and locate wire breaks that emit a signal greater than 10 kHz, to a degree of accuracy within plus or minus three (3) feet. I. The City of Denton must be notified of wire breaks by email within one (1) business day of the event occurring. J. Notification of the location and extent of any abnormal activity detected within the monitoring system must be provided to the City of Denton within one (1) business day of the occurrence. K. Vendor must provide remote support to COD Utilities for onsite activities during the identification and repair of one (1) contiguous pipe section per year, including the necessary remapping of the AFO cable. L. Vendor must be responsible for the provision and installation of software upgrades useable with the installed AFO System as they become available. M. Provide five (5) examples of projects where these systems have successfully identified wire breaks. The vendor must provide where data quality and accuracy have been verified. The vendor must provide the contact information of the clients with the bid packet. ADDITIONAL LABOR CHARGE: Crew (including crew lead or other misc. crew personnel) performing additional needed work to complete the task that is outside normal anticipated contract requirements. The crew’s supervisor that may or may not be present during field operations; all other labor is covered by the required work within the scope of the contract requirements such as technical, engineering, etc. STAND-BY-RATE: The charge for Stand-By-Rate will be allowed if the City calls for a cease from work for a job being performed in the field at that time. The contractor’s crew shall remain in a state of readiness while the City performs a needed task(s). Once the task(s) is completed by the City the contractor shall resume their assigned work. Page 17 of 19 WARRANTY OF SERVICE: All services rendered under this contract shall be warranted to be free from defects in workmanship, planning and materials which affect the integrity of the service. The warranty shall be for the customary warranty period or a period of one (1) year, whichever is greater. If service fails and is believed to be the awarded Contractor’s responsibility, the City of Denton shall give written notice for additional service and repair. The Contractor shall make corrections at the Contractor’s expense in a manner agreed upon by the City. The warranty shall begin upon the City’s start-up of the product, installation, or service. Any service shall be rendered again within (30) working days after the detection by the City at no additional cost to the City. The awarded vendor will be held responsible for all work including those of his subcontractor(s). WARRANTY OF EQUIPMENT: All purchased equipment shall be new and warranted to be free from defects in workmanship, design and materials. Warranty shall be for the manufacturer’s customary warranty period or a period of one (1) year whichever is greater. The warranty will begin upon the City’s acceptance of the parts installation, or service. Defective parts shall be replaced when it has been determined that the failure(s) is product related. The vendor will be responsible for any shipping charges for returns during the warranty period. If the part(s) causes failure and is believed to be defective, the City shall give notice and the vendor shall proceed in correcting the problem at no additional cost to the City. The warranty period will start anew upon the City’s final acceptance of the replaced/repaired product. The warranty will begin upon the City’s start-up of the product, installation, or service. Warranties and guarantees by suppliers of various components in lieu of a single source is the responsibility of the contractor. The contractor shall be solely responsible for the guarantee of all services performed. ERROR AND OMISSION: Proposers are expected to examine all documents that make up the Proposal Solicitation. Proposers shall promptly notify the City of any omission, ambiguity, inconsistency or error that they may discover upon examination of the solicitation documents. Proposers must use the complete proposal solicitation to prepare proposal submittals. The City assumes no responsibility for any errors or misrepresentations that result from the use of incomplete proposal solicitations. The vendor is required to notify the City of Denton Purchasing Department of any noted error, omission or ambiguity. A vendor shall not be allowed to take advantage of any error or omission in these specifications. The vendor is required to review these specifications carefully and notify the City of Denton Purchasing Department of any noted error or omission. Page 18 of 19 Evaluation Criteria Weight Delivery/Project Schedule 10 Compliance with Specifications, quality, reliability, characteristics to meet stated or implied needs 30 Probable Performance 30 Price 30 Total 100 Scoring Criteria: • Identification and understanding of the City's requirements for this project. The respondent understands and delivers the requested services of the primary areas’ objectives and scope using a clear and concise, written expression. The respondent will provide all the appropriately requested criteria. This is considered a critical component of the evaluation. Proposals: Vendor proposals shall include the following Organization and Key Personnel Provide the following information relative to the assignments and qualifications of the Consultant’s team. • Company background, office locations, and number of employees Specific Related Project Experience The consultant shall describe an experience that is directly relevant to the Project. Provide descriptions of similar projects and benefits gained from implementing the project. • References from at least 5 recent projects where large diameter pipe has been inspected with an emphasis on the State of Texas • Past Performance and experience on projects of this magnitude and complexity (FACTOR: 30%) The respondent's successful experience in projects within the primary areas similar to the scope of work requested in this RFQ will be a major consideration. Based on the past performance of both the individual project personnel and the respondent, The City of Denton will determine if the respondent has the record of accomplishment to provide the required services in successfully administering similar projects. Page 19 of 19 Project Approach • Describe what the team would do to perform the project including the identification of the industry framework or standards applied. • Describe technologies used to perform the pipeline condition assessments including accuracy and resolution levels as well as pipe type and class that can be evaluated and any limitations of the technology • Identify the technical risks – list and prioritize risks that the project team controls, and does not control, along with risk mitigation. Describe how to accomplish project goals. Management of Schedule, Budget, and Change Management • Describe proven approaches, methods, and philosophy that will allow the Consultant to meet the proposed project’s five-year schedule. • Provide the relevant parties with sufficient knowledge and skills to manage the program. • Consultant shall describe their approach for establishing and maintaining budget control measures while highlighting lessons learned along with challenges met in previous projects. • Consultant shall describe approaches to change management within the wastewater and water department to support project goals. • Consultant will present a schedule for this service and define the scope of work. This is a proposed schedule for the competition of the scope of work.