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1.04 DESCRIPTION OF WORK
A. The work includes partial demolition, cutting, and modifying of existing facilities, utilities, and/or structures.
B. These facilities may be occupied and/or operational. Satisfactory completion of the work will require that the Contractor plan activities carefully to work around unavoidable obstacles and to maintain overall stability of structures and structural elements. It will further require restoration of existing facilities, utilities, and structures that are to remain in place and that are damaged by demolition or removal operations.
1.05 SUBMITTALS
A. General:
1. Submit specified in Section 01330 - Submittal Procedures.
B. Shop drawings: Include:
1. The location of all embedded items shall be documented using diagrams and/or other media that clearly show dimensions and locations of existing structural elements, existing embedded items and any new embedded items and their relationship to each other.
C. Submittals for information only:
1. Permits and notices authorizing demolition.
2. Certificates of severance of utility services.
3. Permit for transport and disposal of debris.
4. Selective Demolition Plan.
5. Pipe Abandonment Plan.
D. Quality assurance submittals:
1. Qualifications of non-destructive testing agency/agencies.
E. Project record documents.
F. Drawings and/or other media documenting locations of service lines and capped utilities.
1.06 QUALITY ASSURANCE
A. Qualifications:
1. Assign relocation, removal, cutting, coring and patching to trades and workers qualified to perform the Work in manner that causes the least damage and that provides means of returning surfaces to an appearance at least equal to that of the surrounding areas unaffected by the Work.
2. Non-destructive testing agencies: Minimum of 5 years' experience performing non-destructive testing for location of steel reinforcement in existing concrete under conditions similar to that required for this Work.
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1.07 SEQUENCING
A. Perform Work in sequences and within times specified in Section 01140 - Work Restrictions.
B. If the facility or utility to be modified cannot be removed from service, perform the Work while the facility is in operation using procedures and equipment that do not jeopardize operation or materially reduce the efficiency of that facility.
C. Coordinate the Work with operation of the facility:
1. Do not begin alterations of designated portions of the Work until specific permission for activities in each area has been granted by Owner in writing.
2. Engineer will coordinate the planned procedure with facility manager.
3. Complete Work as quickly and with as little delay as possible.
D. Operational functions of the facility that are required to be performed to facilitate the Work will be performed by facility personnel only.
E. Owner will cooperate to assist in expediting the Work.
F. When necessary for the proper operation or maintenance of portions of the facility, reschedule operations so the Work will not conflict with required operations or maintenance.
1.08 REGULATORY REQUIREMENTS
A. Dispose of debris in accordance with governing regulatory agencies.
B. Comply with applicable air pollution control regulations.
C. Obtain permits for building demolition, transportation of debris to disposal site and dust control.
1.09 PROJECT CONDITIONS
A. Do not interfere with use of adjacent structures and elements of the facility not subject to the Work described in this Section. Maintain free and safe passage to and from such facilities.
B. Provide, erect, and maintain barricades, lighting, guardrails, and protective devices as required to protect building occupants, general public, workers, and adjoining property:
1. Do not close or obstruct roadways without permits.
2. Conduct operations with minimum interference to public or private roadways.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01738 (CONFORMED) C. Prevent movement, settlement, or collapse of structures adjacent services, sidewalks, driveways and trees:
1. Provide and place bracing or shoring.
2. Cease operations and notify Engineer immediately when safety of structures appears to be endangered. Take precautions to properly support structure. Do not resume operations until safety is restored.
3. Assume liability for movement, settlement, or collapse. Promptly repair damage.
D. Arrange and pay for capping and plugging utility services. Disconnect and stub off.
1. Notify affected utility company in advance and obtain approval before starting demolition.
2. Place markers to indicate location of disconnected services.
E. Unknown conditions:
1. The drawings may not represent all conditions at the site and adjoining areas.
Compare actual conditions with drawings before commencement of Work.
2. Existing utilities and drainage systems below grade are located from existing documents and from surface facilities such as manholes, valve boxes, area drains, and other surface fixtures.
3. If existing active services encountered are not indicated or otherwise made known to the Contractor and interfere with the permanent facilities under construction, notify the Engineer in writing, requesting instructions on their disposition. Take immediate steps to ensure that the service provided is not interrupted, and do not proceed with the Work until written instructions are received from the Engineer.
PART 2 PRODUCTS
2.01 SALVAGE MATERIALS
A. Materials designated for temporary salvage:
1. One of the existing blowers, until the new blowers are installed and commissioned.
B. Handling and storage:
1. Prevent damage to salvaged materials during removal, handling, and transportation.
2. Store salvaged materials in the following locations:
a. Contractor provided, secure, protected storage.
C. Pay costs associated with salvaging materials, including handling, transporting, and storage.
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3.01 EXAMINATION
A. Prior to beginning selective demolition operations, perform a thorough inspection of the facility and site.
1. Report to the Engineer defects, structural damage, and deterioration of existing construction to remain in place.
B. Examine areas affected by the Work and verify the following conditions prior to commencing demolition:
1. Disconnection of utilities as required.
2. Verify that utilities serving occupied or active portions of surrounding facilities will not be disturbed, except as otherwise indicated.
C. If unsatisfactory conditions exist, notify the Engineer, and do not begin demolition operations until such conditions have been corrected.
3.02 PREPARATION
A. Plan and organize Work to minimize inconvenience to adjacent buildings and to plant operations.
B. Selective Demolition Plan:
1. Prepare and submit a comprehensive selective demolition plan for the Work including the following elements, at a minimum:
a. Proposed sequence, methods, temporary support, and equipment for demolition, removal, and disposal of portions of structure(s). b. Provisions and procedures for salvage and delivery to Owner of salvaged items, if required.
2. Submit plan a minimum 4 weeks before demolition is scheduled to begin.
C. Pipe Abandonment Plan:
1. Prepare and submit a comprehensive Pipe Abandonment Plan for the Work. a. Include provisions to demonstrate and verify with camera inspection that all solids have been removed and that pipe is free of residuals.
2. At a minimum, define the following elements:
a. Proposed sequence, methods, cleaning procedures, or demolition, removal, and disposal of contents of the piping.
b. Method of verification of final pipe condition.
c. Detailed drawings showing treatment of pipe ends.
3. Submit plan a minimum 4 weeks before abandonment is scheduled to begin.
D. Protection:
1. Erect weatherproof closures to protect the interior of facilities and elements or equipment that are not designed for exposure to the weather.
2. Provide temporary heat, cooling, and humidity control as necessary to prevent damage to existing and new equipment and construction.
3. Maintain existing exiting paths and/or provide new paths in compliance with Building Code requirements.
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4. Erect and maintain dustproof partitions as required to prevent spread of dust, to other parts of building. Maintain negative pressure in the area where the Work is being performed to prevent the accidental spread of dust and to minimize the spread of fumes related to the Work.
5. Upon completion of Work, remove weatherproof closures and dustproof partitions.
6. Repair damaged surfaces to match adjacent surfaces.
7. Provide and maintain protective devices to prevent injury from falling objects.
8. Locate guardrails in stairwells and around open shafts to protect workers. Post clearly visible warning signs.
9. Protect the following from damage or displacement during Work. a. Benchmarks and survey points.
b. Existing construction that will remain in place.
c. Trees and landscaping designated to remain in place.
10. Carefully remove designated materials and equipment to be salvaged by Owner or reinstalled.
11. Store and protect materials and equipment to be reinstalled.
E. Layout:
1. The limits of selective demolition are indicated on the Drawings. Confine demolition operations within the limits indicated on the Drawings.
2. Lay out demolition and removal work at the site and coordinate with related Work for which demolition and removal is required.
3. Clearly mark the extent of structural elements to be removed on the actual surfaces that will be removed.
4. Arrange for Engineer's inspection of the lay out extents.
5. Do not begin demolition/removal operations until the lay out markings have been reviewed by the Engineer.
3.03 DEMOLITION
A. General:
1. Perform demolition work in accordance with ANSI A10.6.
2. Demolish designated portions of structures and appurtenances in orderly and careful manner in accordance with the Selective Demolition Plan.
3. Conduct demolition and removal work in a manner that will minimize dust and flying particles.
a. Use water or dust palliative when necessary to prevent airborne dust. b. Provide and maintain hoses and connections to water main or hydrant.
4. Remove materials carefully, to the extent indicated and as required. a. Provide neat and orderly junctions between existing and new materials. b. Use methods that terminate surfaces in straight lines at natural points of division.
5. Do not remove anything beyond the limits of Work indicated without prior written authorization from the Engineer.
a. If in doubt about whether to remove an item, obtain written authorization from the Engineer prior to proceeding.
6. Perform work so as to provide the least interference and most protection to existing facilities to remain.
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7. Demolished materials:
a. Assume possession of materials unless otherwise indicated on the Drawings or specified.
b. Owner claims the following materials:
1) Valves.
2) Circuit breakers.
3) Programmable logic controllers.
4) Fuses.
5) Wire.
c. Remove demolished materials from site at least weekly and dispose of them in accordance with Laws and Regulations.
d. Do not burn or bury materials on site.
B. Demolition of concrete and masonry:
1. Demolish concrete and masonry in small sections.
a. Perform demolition with small tools as much as possible. b. Blasting with explosive charges is not permitted.
2. Sawcut concrete to establish the edges of demolition, wherever possible. a. Do not use a concrete breaker within 6 inches of reinforcing or structural metals that are designated to remain in place.
b. At edges that are not sawcut, remove the final 6 inches of material with a chipping hammer as defined herein. At surfaces where material is removed with a chipping hammer, follow with a heavy abrasive blast to remove all loose material and microcracking.
c. Alternate techniques to remove concrete may be used if acceptable to the Engineer; however, techniques other than those deemed by ICRI Guideline No. 310.2R to provide a low risk of introducing microcracking will require a subsequent procedure to remove loose material and microcracked.
3. At locations indicated on the Drawings where the existing reinforcing is to be preserved, remove concrete using methods that do not damage the reinforcing. Use one of the following techniques:
a. Hydrodemolition techniques as outlined in ICRI Guideline No. 310.3R. b. Chipping hammer, as defined herein, followed by heavy abrasive blast to remove all loose material and microcracking at remaining surfaces impacted by the chipping hammer.
c. Alternate methods may be used, only when accepted in advance by the Engineer.
d. For all methods, provide a small completed area for Engineer's review and acceptance. If the proposed method, in the opinion of the Engineer, damages the reinforcing, revise the removal method to remove the concrete with a less aggressive technique to protect the reinforcing.
C. Sizing of openings in existing concrete or masonry:
1. Make openings large enough to permit final alignment of pipe and fittings without deflections, but without oversizing.
2. Allow adequate space for packing around pipes and conduit to ensure watertightness.
3. If the Engineer deems the opening to be insufficient in size to accomplish this criteria, remove additional material using the procedures outlined in this Section.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01738 (CONFORMED) D. Cutting openings in existing concrete or masonry:
1. Do not allow saw cuts to extend beyond limits of openings.
2. Create openings by the following method or other means acceptable to the Engineer that prevents over-cutting of member at corners:
a. Core-drill through slab or wall at corners, being careful not to damage materials beyond the area to be removed.
b. Saw cut completely through the member, between the core holes at the corners.
c. As an alternate to sawcutting through the member, score the edges of the opening with a saw to a 1-inch depth.
1) Provide score on both surfaces (when accessible).
2) Remove concrete or masonry to within 6 inches of material to remain with a concrete breaker.
3) Remove the remaining material with a chipping hammer. d. Remove the remaining material at the corners left by the core-drilling with a chipping hammer.
2. Prevent debris from falling into adjacent tanks or channels in service or from damaging existing equipment and other facilities.
E. In-place Abandonment of Pipe:
1. Abandoned pipe in-place as indicated on the Drawings.
2. Clean buried or exposed solids service piping to a condition free of residual. a. Solids service piping includes: raw wastewater (RAW WW), primary sludge or scum (PS), mixed liquor (ML), return activated sludge (RAS), waste active sludge (WAS), surface waste activated sludge (SWAS), thickened waste activated sludge (TWAS), digested sludge (DS), centrate, or other similar solids service subject to biological degradation, etc.
3. Provide closure of abandoned pipe cut ends as indicated on the Drawings using one of the following methods:
a. Leave one end open.
b. Install cap.
c. Install plug.
d. Install drain valves, pressure relief valves, vents, etc. e. Fill abandoned pipe as specified in Section 02312 - Controlled Low Strength Material (CLSM).
F. Buried structures:
a. Pump out buried tanks.
G. Immediately upon discovery, remove and dispose of contaminated, vermin-infested, or dangerous materials using safe means that will not endanger health of workers and public.
H. Remove trees and shrubs within marked areas, and clear undergrowth and dead plant material as specified in Section 02300 - Earthwork.
I. Backfill open pits and holes caused by demolition as specified in Section 02300 - Earthwork.
Selective Alterations and Demolition
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01738 (CONFORMED) J. Rough grade areas affected by demolition.
K. Remove demolished materials, tools, and equipment upon completion of demolition.
3.04 RESTORATION
A. General:
1. Repair damage caused by demolition to conditions equal to those that existed prior to beginning of demolition.
a. Patch and replace portions of existing finished surfaces that are damaged, lifted, and discolored. Refinish patched portion surfaces in a manner which produces uniform color and texture to entire surface, and that matches color and texture of adjacent surfaces.
b. When existing finish cannot be matched, refinish entire surface to nearest change of plane where angle of change exceeds 45 degrees.
2. The cost of repairs shall be at the Contractor’s expense at no increase in the Contract Price.
3. When new construction abuts or finishes flush with existing construction, make smooth transitions. Match finish of existing construction.
4. Where partitions are removed, patch floors, walls, and ceilings with finish materials that match existing materials.
5. Where removal of partitions results in adjacent spaces becoming one, rework floors, walls, and ceilings to provide smooth planes without breaks, steps, or bulkheads.
a. Where change of plane between adjacent surfaces exceeds 2 inches, request and obtain instructions for making transition from Engineer. 1) Refinish door surfaces and edges as necessary.
6. Trim existing doors as necessary to clear new floors.
7. Match patched construction with adjacent construction in texture and appearance so that patch or transition is invisible at 5-foot distance.
8. When finished surfaces are cut so that smooth transition is impossible, terminate existing surface in neat manner along straight line at natural line of division and provide appropriate trim.
B. Restore existing concrete reinforcement as follows:
1. Where existing reinforcement is to be incorporated into the new Work, protect, clean, and extend into new concrete.
2. Where existing reinforcement is not to be retained, cut off as follows:
a. Where new concrete joins existing concrete at the removal line, cut reinforcement flush with concrete surface at the removal line. b. Where concrete surface at the removal line will become the finished surface, cut reinforcement 2 inches below the surface, paint ends with epoxy, and patch holes with dry pack mortar.
C. Restore areas affected by removal of existing equipment, equipment pads and bases, piping, supports, electrical panels, electric devices, conduits, and fasteners so little or no evidence of the previous installation remains:
1. After removal of piping, conduit, fasteners, and other construction, fill areas in existing concrete and masonry floors, walls, and ceilings with non-shrink grout and finish smooth.
Selective Alterations and Demolition
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2. Remove concrete bases for equipment and supports by:
a. Saw cutting clean, straight lines with a depth equal to the concrete cover over reinforcement minus 1/2 inch below finished surface. 1) Do not cut existing reinforcement in slab.
b. Chip concrete within scored lines.
c. Cut exposed reinforcing steel and anchor bolts that will project above the repaired surface.
d. Patch with non-shrink grout to match adjacent grade and finish.
3. Terminate abandoned piping and conduits with blind flanges, caps, or plugs.
4. Where existing fasteners are not to be retained, cut off as follows:
a. Where new concrete joins existing concrete at the removal line, cut fasteners flush with concrete surface at the removal line. b. Where concrete surface at the removal line will become the finished surface, cut fasteners 1 inch below the surface, paint ends with epoxy, and patch holes with epoxy grout.
3.05 FIELD QUALITY CONTROL
A. Do not proceed with demolition without Engineer's inspection of lay out.
B. Do not deviate from the submitted demolition plan without notifying the Engineer prior to Work.
END OF SECTION
Commissioning
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COMMISSIONING
TABLE OF CONTENTS
PART 1 GENERAL.................................................................................................................2
1.01 SUMMARY ...................................................................................................................2
1.02 DEFINITIONS...............................................................................................................2
1.03 SUBMITTALS...............................................................................................................4
1.04 COMMISSIONING COORDINATOR (CC)...................................................................5
1.05 MANUFACTURER’S REPRESENTATIVES ................................................................6
1.06 PLANNING PHASE......................................................................................................6
1.07 TESTING AND TRAINING PHASE..............................................................................8
1.08 START-UP PHASE ....................................................................................................16 PART 2 PRODUCTS (NOT USED) ......................................................................................17 PART 3 EXECUTION (NOT USED) .....................................................................................17
ATTACHMENT A - COMMISSIONING FLOWCHARTS
ATTACHMENT B - MANUFACTURER’S CERTIFICATE OF SOURCE TESTING ATTACHMENT C - MANUFACTURER’S CERTIFICATE OF INSTALLATION VERIFICATION ATTACHMENT D - MANUFACTURER’S CERTIFICATE OF FUNCTIONAL COMPLIANCE
ATTACHMENT E - TRAINING EVALUATION FORM
ATTACHMENT F - COMMISSIONING ROLES AND RESPONSIBILITIES MATRIX
ATTACHMENT G - FUNCTIONAL TESTING REQUIREMENTS
Commissioning
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Commissioning.
1.02 DEFINITIONS
A. Commissioning: The process of planning for, testing of, and start-up of systems, subsystems, equipment, components, and devices of the Work to demonstrate, through documented verification, that the Work has successfully met the Contract Documents. It includes training the Owner's staff on operation and maintenance of the installed Work.
B. Commissioning Phases: The activities of commissioning are grouped into the phases defined in the following table.
1. Table 1 - Commissioning Phases.
TABLE 1 - COMMISSIONING PHASES
Planning Phase Testing and Training Phase Start-Up Phase Draft Test Plans Source Testing
• Documentation
Start-Up
• Documentation
• Owner Training
Installation Verification
• Documentation
• Owner Training
Functional Testing
• Documentation
• Owner Training
Subsystem Testing Plan Installation Testing PCIS Optimization and Fine-Tuning
2. Attachment A provides Commissioning Flowcharts.
C. Component: A part of a system that does not have an electrical connection or internal electronics. Examples: Piping and pressure gauges.
D. Device: A part of a system that has electrical connections or internal electronics.
Examples: level transmitter or pressure transmitter.
E. Electrical Energization Plan: A plan to manage how and when power is applied to electrical equipment.
F. Equipment: A factory or field assembled apparatus that performs an identifiable function. Examples: pumps, motors, VFDs, MCCs.
Commissioning
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) G. Functional Testing: Testing performed on a completed subsystem or system to demonstrate that the system meets the specified requirements. Example systems:
backwash system, dewatering system.
H. Installation Verification: Testing to demonstrate that equipment or system and associated components or devices have been properly installed. Example equipment: pumps, meters, and blowers with associated piping.
I. Manufacturer’s Certificate of Functional Compliance: The form completed by the manufacturer to confirm that testing of the installed equipment or system has been performed and the results conform to the specified performance. The form is provided in Attachment D provided at the end of this Section.
J. Manufacturer’s Certificate of Installation Verification: The form completed by the manufacturer to confirm that the equipment or system is installed in conformance with the Contract. The form is provided in Attachment C at the end of this Section.
K. Manufacturer’s Certificate of Source Testing: The form completed by the manufacturer to confirm that the specified source tests have been performed and the results conform to the specified requirements. The form is provided in Attachment B at the end of this Section.
L. Owner Training: The Owner’s staff is trained by the Contractor, with assistance from manufacturer, to operate and maintain the completed Work. This is sometimes referred to as Vendor Specific Training.
M. Process Stream: A series of liquid or solids flow processes that are designed to improve the water quality to meet regulatory permit requirements.
N. Source Testing: Test equipment or products for performance at point of manufacture or assembly for the requirements specified in the Contract Documents.
Also referred to as factory testing and factory acceptance testing (FAT).
O. Start-Up Phase: The phase when Start-Up occurs.
P. Start-Up: Operating the Work with process water to verify the Work meets the Contract Documents.
Q. Subsystem: A grouping of equipment, components, and devices that is a part of a larger system and that perform a single definable function. Examples: sand filters, filter backwash.
R. System: A grouping of equipment, components, and devices that perform a single definable function. If a system is a part of a larger system, it is referred to as a subsystem Examples: Flocculation and sedimentation, filtration.
S. System Testing: Testing of a completed system for an extended time period.
Examples: Headworks, filtration.
T. Water Management Plan: A plan to manage the test water used for commissioning from source to disposal. The test water may be clean water, potable water,
Commissioning
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) non-potable water, or process water (e.g., raw water, plant water, sludge). The plan demonstrates how water will be produced, conveyed, treated, disposed of as directed by the plant manager, and/or recycled.
1.03 SUBMITTALS
A. Project commissioning:
1. Commissioning Coordinator’s qualifications.
a. Submit to Engineer no later than 30 days after Notice to Proceed. b. Describe previous similar experience on similar projects with a list of references including phone numbers.
c. Provide names and qualifications of commissioning assistants, if applicable.
2. Schedules:
a. Commissioning Schedule containing all commissioning activities. b. Owner Training Schedule.
3. Test Plans:
a. Submit draft Test Plan outlined in the Planning Phase, unless specified otherwise.
1) Engineer approval of draft Test Plans required for successful completion of Planning Phase.
b. Submit final Test Plan a minimum of 120 calendar days prior to testing. c. Engineer approval of final Test Plan required prior to start of testing.
4. Test Reports:
a. Submit draft Test Reports outline in the Planning Phase, unless specified otherwise.
1) Engineer approval of draft Test Reports outline required for successful completion of Planning Phase.
b. Submit final Test Report a minimum of 30 calendar days after testing.
B. Technical Sections commissioning:
1. Manufacturer’s representative’s qualifications.
a. Submit to Engineer no later than 30 days in advance of required services. b. Representative's name, phone, and e-mail address:
1) May use 2 representatives: 1 for field testing and 1 for Owner Training.
2) Provide resume stating instructor’s technical expertise and instructional technology skills and experience.
2. Test Plans:
a. Submit draft Test Plan outlined in the Planning Phase, unless specified otherwise.
1) Engineer approval of draft Test Plans required for successful completion of Planning Phase.
b. Submit final Test Plan a minimum of 120 calendar days prior to testing. c. Engineer approval of final Test Plan required prior to start of testing.
3. Test Reports:
a. Submit draft Test Reports outline in the Planning Phase, unless specified otherwise.
1) Engineer approval of draft Test Reports outline required for successful completion of Planning Phase.
b. Submit final Test Report a minimum of 30 calendar days after testing.
Commissioning
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4. Manufacturer's representatives field notes and data.
5. Owner Training:
a. Prior to the training session:
1) Training instructor qualifications.
2) Training course materials: Due 30 calendar days prior to initial training session.
a) If Owner requires, Continuing Education Units (CEUs), submit training materials to state regulatory agency in sufficient time to obtain approval for training prior to the training.
b) Drafts of training agenda, lesson plan, presentation, handouts, and list of audio-visual aids.
c) Format: 1 electronic copy in format specified by Owner and 3 hard copies organized in notebooks.
b. Post training session:
1) Training course materials: Due 14 calendar days after class completion.
a) Recordings.
b) Class attendance sheet.
c) Final version of training agenda, final lesson plan, presentation, handouts, and audio-visual aids.
d) Format: 1 electronic copy in format specified by Owner and 3 hard copies organized in notebooks.
2) Provide materials for all sessions of the class in a single transmittal. 3) If the Owner requires training CEUs, issue training CEU certificates approved by the state regulatory agency to Owner’s staff who successfully completed the training.
1.04 COMMISSIONING COORDINATOR (CC)
A. Responsibilities include the following:
1. Part-time person.
2. Become thoroughly familiar with Contract commissioning requirements.
3. Provide the primary interface with Engineer and Owner for Commissioning efforts.
4. Lead Commissioning efforts - all phases and tasks.
5. Coordinate training efforts.
6. Meetings:
a. CC is responsible for setting commissioning coordination meeting dates and times, as well as preparing the agendas and meeting minutes. b. CC shall conduct commissioning progress meetings throughout construction, to plan, scope, coordinate, and schedule future activities, resolve problems, etc.
c. Frequency: Monthly minimum. Increase frequency as needed based on complexity and quantity of commissioning activities.
B. Designate and provide CC assistants, as needed.
Commissioning
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1.05 MANUFACTURER’S REPRESENTATIVES
A. Qualifications: as specified below and in the Technical Sections:
1. For Installation and Functional Testing:
a. Factory trained and experienced in the technical applications, installation, operation, and maintenance of respective equipment/system with full authority by the equipment/system manufacturer to issue the certifications required of the manufacturer.
2. Training instructor qualifications:
a. Provide resume stating instructor’s technical preparation and instructional technology skills and experience.
b. If CEUs are required, the operator training instructors must comply with state regulatory.
c. Knowledgeable in the equipment/system for which they are training. d. Experienced in conducting classes.
e. Sales representatives are not qualified instructors unless they possess the detailed operating and maintenance knowledge required for proper class instruction.
3. Representatives to be approved by Owner and Engineer.
4. No substitute representatives without written approval by Owner and Engineer.
B. Duties:
1. Determine if additional time and/or trips (beyond those specified in the Technical Sections) is required to perform the specified services.
2. Coordinate services in accordance with the Contractor’s project schedule up to and including making multiple trips to project site when there are separate milestones associated with installation of each occurrence of manufacturer’s equipment.
3. Perform on-site services as specified in the Technical Sections:
4. Provide daily copies of manufacturer's representatives field notes and data to Contractor.
1.06 PLANNING PHASE
A. Overview of Planning Phase:
1. Define approach and timing for commissioning.
2. Obtain Engineer approval of draft Test Plans.
B. Test Plans.
1. Define approach and timing for:
a. Testing and Training Phases.
1) Major systems, with separate plans for each system.
b. Start-Up Phase.
2. Centralized commissioning database:
a. Provide system to manage information.
1) Detailed steps.
2) Dependencies and other relationships of steps.
b. Update the database within 24 hours of task completion.
3. Source Test (Factory Acceptance Test) and Functional Test Plans:
a. As specified in this Section and other Technical Sections. b. Based on approved shop drawings.
Commissioning
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) c. Prepared by Contractor.
d. Include the following items for each test:
1) Purpose of the test.
2) Identification of each item of equipment/system to be tested, including system designation, location, tag number, control loop identifier, etc.
3) Description of the pass/fail criteria that will be used. 4) Listing of pertinent reference documents (Contract and industry standards or sections applicable to the testing).
a) Credentials of test personnel.
5) Test equipment:
a) Include Product Data for the test equipment.
b) Appropriate calibration records.
(1) Drawings or photographs of test stands and/or test
apparatus.
6) Duration: Determine test durations with Owner’s input. 7) Detailed step-by-step test procedures.
a) The level of detail shall be sufficient for the witness to follow the steps.
e. Define for Functional Testing:
1) Required temporary systems (pumps, piping, etc.).
2) Shutdown requirements for existing systems.
f. Furnish labor, power, tools, equipment, instruments, and services required for and incidental to testing activities.
4. Test forms minimum requirements:
a. Name of product to be tested.
b. Test date.
c. Names of persons conducting the test.
d. Names of persons witnessing the test, where applicable. e. Test data.
f. Applicable project requirements as specified in the Technical Sections. g. Check offs for each completed test or test step.
h. Place for signature of person conducting tests and for the witnessing person, as applicable.
5. Owner responsibilities:
a. Schedule Owner’s staff within the constraints of their workloads. 1) Those who will participate in this test have existing full-time work assignments, and testing is an additional assigned work task, therefore, scheduling is imperative.
2) Owner staff work schedules regularly shift, as treatment facilities are typically operated on an around-the-clock basis.
3) Maximum hours per week: 4.
4) Days available: Monday to Thursday.
5) Scheduling coordination:
6) CC is responsible for the following:
a) Coordinate schedule with the Owner’s personnel and
manufacturer's representatives (instructors).
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01756-8 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) C. Test Reports:
1. Minimum requirements:
a. Title.
b. Abstract.
c. Equipment.
d. Procedures.
e. Results.
1) Complete disclosure of the calculation methodologies. f. Conclusions.
g. Signature by an authorized party.
h. Appendices.
1) Completed test forms signed by witnesses.
2. Water Management Plan:
a. Requirements:
1) Demonstrate how water will be produced, conveyed, treated, recycled, and or disposed until testing verifies specified requirements.
3. Commissioning Schedule:
a. Content:
1) Comply with Attachment G - Functional Testing Requirements and provide activities organized by system and subsystem.
2) Include:
a) Source testing when required.
b) Functional testing.
c) Owner Training.
3) Comply with Attachment F - Commissioning Roles and
Responsibilities Matrix.
b. Procedures:
1) Submit commissioning schedule as specified in Section 01321 - Schedules and Reports.
1.07 TESTING AND TRAINING PHASE
A. Overview of Testing and Training Phase:
1. General:
a. Contractor tests the Work to verify it meets the Contract requirements. b. Contractor trains the Owner to operate and maintain the Work.
2. Contractor responsibilities:
a. Furnish labor, power, chemicals, tools, equipment, instruments, and services required for and incidental to completing commissioning activities in accordance with the approved Commissioning Plans.
3. Owner responsibilities:
a. Furnish labor, power, chemicals, and services required for and incidental to completing commissioning activities in accordance with the approved Commissioning Plans.
b. Owner provided services, equipment, and/or materials to be as specified in Section 01110 - Summary of Work.
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01756-9 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) B. Source Testing:
1. As specified in the Technical Section.
2. Source Test Plan:
a. Engineer approval of Source Test Plan required prior to testing.
3. Witnessed in person:
a. As specified in the Technical Section.
b. Contractor is responsible for trip costs associated with Owner's and Engineer’s representatives.
1) Transportation:
a) Commercial airline costs to and from
Charles M. Schulz-Sonoma County Airport (STS) including related fees.
b) Rental car to and from arrival airport, hotel, and test site including related fees.
2) Hotel/Meals:
a) Hotel with an American Automobile Association 3 Diamond rating or higher equivalent for single occupancy room per person per day.
b) Meal allowance based on state government per diem guidelines per test site location.
4. Virtual witness testing:
a. As specified in the Technical Sections.
b. Contractor is responsible for costs associated with virtual witness. c. Provide the following:
1) An agenda detailing start time of each major phase in the procedure defined in the approved Test Plan.
2) A dedicated operator (separate from the test technician) to operate the camera, provide commentary throughout test, and inspect devices at the request of the attendees.
d. Online meeting platform: Microsoft Teams.
e. Share video through a high-definition camera.
f. Establish methods to communicate, convey, and record information clearly even in environments with loud background noise. 1) Electronic feed for screen sharing of the control panel, HMI, or other screens used throughout testing.
2) Provide recording of virtual sharing within 1 day after testing. g. Test run of virtual sharing a minimum of 1 week prior to the test:
1) Use current record documents in PDF format.
2) Provide recording of virtual sharing within 1 day after the test run. 3) Engineer approval of test run virtual sharing is required before source testing.
5. If the Source Test is not ready on the scheduled date or if the Source Test fails:
a. Contractor is responsible for associated costs:
1) First test costs that are non-refundable, if applicable. 2) Repeat test costs:
a) Trip costs, if applicable.
3) Virtual witness costs, if applicable.
a) Witness labor costs:
(1) Travel time and witness time are included, if applicable. (2) The greater of $200 per hour or $1,600 per day.
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6. Source testing is complete after successful testing, submittal of test report, and Manufacturer’s Certificate of Source Testing.
7. Engineer approval of Source Testing Report is required.
C. Installation Verification:
1. Overview:
a. Verifying the installation of equipment to be in accordance with Manufacturer’s Instructions.
2. Prerequisite:
a. Engineer approval of Source Testing Report.
3. Perform checks:
a. Structural anchorage check.
b. Electrical energization check.
1) As specified in the flowchart shown in Attachment A. c. Health and safety check.
4. Submit Manufacturer’s Certificate of Installation Verification.
5. Engineer approval of Manufacturer’s Certificate of Installation Verification is required.
D. Functional Testing:
1. Overview:
a. Testing the function of a system or subsystem.
2. Prerequisites:
a. Engineer approval of Manufacturer’s Certificate of Installation Verification . b. Engineer approval of Functional Test Plan required prior to testing. c. Draft Operations and Maintenance Manual as specified in Section 01782 - Operations and Maintenance Manual.
d. Completed pipe, valve, and gate labeling of system or subsystem. 1) As specified in Section 15076 - Pipe Identification prior to the start of Functional Testing.
3. Witnessed.
4. Discipline checks:
a. Verify support systems function properly, such as seal water, pipes, valves, etc.
b. As specified in the individual Technical Sections.
5. Consecutive Day Test:
a. Operate the Work as specified in Attachment G - Functional Testing Requirements and as specified in the individual Technical Sections. 1) Successful completion of subsystem testing required prior to system testing.
b. Failure response time:
1) Be equipped and ready to provide emergency repairs, adjustments, and corrections to comply with the "Significant Interruption Duration” requirements as specified in Attachment G - Functional Testing Requirements.
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01756-11 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) c. Duration:
1) As specified in Attachment G - Functional Testing Requirements. 2) Restart the consecutive day test when the system performance failures exceed the "Significant Interruption Duration" time period specified in Attachment G - Functional Testing Requirements. a) Individual equipment/system failures that are corrected within the "Significant Interruption Duration" time specified in Attachment G - Functional Testing Requirements shall not require the consecutive day test to be restarted unless the failure recurs.
b) Engineer has the authority to reject the consecutive day test if individual equipment/system failures are repetitive.
6. Instrumentation and controls tests.
a. Loop Validation Tests.
b. Complete End-to-End Testing (CEET):
1) Signal are tested from the field device through the PLC program, the network, and all the way to the operator’s HMI graphic screens.
7. Restore to condition prior to testing:
a. Dewater and clean sumps.
b. Dewater process units, where required by test plan.
8. Submit Manufacturer’s Certificate of Functional Compliance.
9. Engineer approval of Manufacturer’s Certificate of Functional Compliance is required.
E. Documentation:
1. Provide records generated during Commissioning Phase of Project including but not limited to:
a. Training documentation.
b. Manufacturer’s Certificate of Source Testing.
c. Manufacturer’s Certificate of Installation Verification. d. Manufacturer’s Certificate of Functionality Compliance. e. Daily logs of equipment/system testing identifying tests conducted and outcome.
f. Test forms and documentation.
g. Functional Testing results.
h. Logs of time spent by manufacturer's representatives performing services on the job site.
i. Equipment lubrication records.
j. Electrical phase, voltage, and amperage measurements. k. Insulation resistance measurements.
l. Bearing temperature measurements.
m. Data sheets of control loop testing including testing and calibration of instrumentation devices and setpoints.
n. Provide: 1 electronic copy in format specified by Owner and 3 hard copies organized in notebooks.
o. Store the data within 24 hours of the test or document creation in the project file system.
p. Due date: Within 14 calendar days of Substantial Completion.
2. Engineer approval of documentation is required.
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01756-12 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) F. Owner Training:
1. Train Owner’s staff on the operation and maintenance of the equipment/system.
a. Provide Owner staff with state regulatory agency approved training CEUs.
2. Train on each topic of the approved Operation and Maintenance Manual. a. Include classroom instruction and field demonstration with all necessary tools and test equipment.
3. Training tailored to the skills and job classifications of the staff attending the classes (e.g., plant superintendent, treatment plant operator, maintenance technician, electrician, etc.).
4. Training outcomes:
a. Owner’s staff can safely operate, maintain, and repair the equipment/systems provided as recommended by the manufacturer.
5. Training plan:
a. CC shall meet with Engineer and Owner’s designated training coordinator to develop list of personnel to be trained and to establish expected training outcomes and objectives at least 60 calendar days prior to commissioning of equipment/system.
b. Coordinate and arrange for manufacturer’s representatives to provide both classroom-based learning and field (hands-on) training, based on training module content and stated learning objectives. c. Conduct classroom training at location designated by Owner. d. Scope and sequence:
1) Plan and schedule training in the correct sequence to provide prerequisite knowledge and skills to trainees.
a) Describe recommended procedures to check/test
equipment/system following a corrective maintenance repair. 2) If multiple classes are needed to meet the training objectives, they shall be included in the training plan.
6. Owner Training Schedule:
a. Schedule Owner’s staff training within the constraints of their workloads. 1) Those who will participate in this training have existing full-time work assignments, and training is an additional assigned work task, therefore, scheduling is imperative.
2) Owner staff work schedules regularly shift, as treatment facilities are typically operated on an around-the-clock basis.
3) Maximum training hours per week: 16.
4) Days available for training:
a) Monday to Thursday.
b. Training scheduling coordination:
1) CC is responsible for the following:
a) Coordinate schedule for training periods with the Owner’s personnel and manufacturer's representatives (instructors). 2) Complete Owner Training no sooner than 15 calendar days prior to Functional Testing of each system.
c. Class logistics:
1) Delivery time minimum: 2 hours.
2) Delivery time maximum: 4 hours.
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01756-13 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) 3) Class agenda:
a) Refreshment break: One 10-minute break.
b) Meal break: One 45-minute break, unless otherwise specified. c) Schedule refreshment breaks and meal breaks to meet the class needs and Owner work rules.
4) Schedule specific sessions:
a) Minimum of 30 days in advance to allow Owner staffing arrangements to take place.
b) At the times requested by the Owner, within the period 7 a.m. to 7 p.m. Monday through Friday.
(1) Times scheduled will be at Owner’s discretion.
c) Owner approval and confirmation required for session schedules.
d) Provide minimum of 2 sessions for each class unless otherwise noted.
(1) The purpose of having multiple sessions on each class is to accommodate the attendance of as many Owner personnel
working different shifts as possible.
e) A maximum of 1 session per day for each class.
d. Number of students:
1) Estimated class size maximum: 5 staff.
2) Engineer will confirm the headcount 1 week prior to the class, so that the instructor can provide the correct number of training aids for students.
7. Submittals:
a. Submit Training Plan Schedule 30 calendar days before the first scheduled training session, including but not limited to lesson plans, participant materials, instructor’s resumes, and training delivery schedules.
b. Submit training documentation including the following:
1) Training plan:
a) Training modules.
b) Scope and sequence statement.
c) Contact information for manufacturer’s instructors including name, phone, and e-mail address.
d) Instructor qualifications.
2) Training program schedule:
a) Format: Bar chart:
(1) Include in the Project Progress Schedule.
b) Contents:
(1) Training modules and classes.
8. Lesson plans:
a. Divide training into discrete modules appropriate for the equipment and trades.
b. State performance-based learning objectives in terms of what the trainees will be able to do at the end of the lesson.
c. Define student conditions of performance and criteria for evaluating instructional success.
d. Minimum requirements:
1) Hands-on demonstrations planned for the instructions. 2) Cross-reference training aids.
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01756-14 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) 3) Planned training strategies such as whiteboard work, instructor questions, and discussion points or other planned classroom or field strategies.
4) Attach handouts cross-referenced by section or topic in the lesson plan.
5) Indicate duration of outlined training segments.
e. Provide instruction lesson plans for each trade:
1) Detailed component description:
a) Identify each component function and describe in detail. b) Identify equipment’s mechanical, electrical, and electronic components and features.
c) Where applicable, group relative components into subsystems. d) Identify and describe in detail equipment safety features, permissive and controls interlocks.
2) Equipment operation:
a) Describe equipment’s operating (process) function and system theory.
b) Describe equipment’s fundamental operating principles and dynamics.
c) Identify support equipment associated with the operation of subject equipment.
d) Detail the relationship of each piece of equipment or component to the subsystems, systems, and process.
e) Cite hazards associated with the operations, exposure to chemicals associated with the component, or the waste stream handled by the component.
f) Specify appropriate safety precautions, equipment, and procedures to eliminate, reduce, or overcome hazards.
3) Define Preventative Maintenance (PM) inspection procedures required on equipment in operation, spot potential trouble symptoms (anticipate breakdowns), and forecast maintenance requirements (predictive maintenance).
a) Review preventive maintenance frequency and task analysis table.
4) Define equipment Corrective Maintenance (CM) troubleshooting:
a) Describe recommended equipment preparation requirements as they relate to specific craft problems.
b) Identify and describe the use of any special tools required for maintenance of the equipment as they relate to specific craft problems.
c) Provide component specific troubleshooting checklists as they relate to specific craft problems.
d) Describe component removal/installation and
disassembly/assembly procedures for specific craft repairs. e) Perform at least 2 hands-on demonstrations of common corrective maintenance repairs.
5) Describe recommended measuring instruments and procedures, and provide instruction on interpreting alignment measurements, as appropriate.
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9. Training instruction format:
a. The training for operations and maintenance personnel shall be provided as 1 entity.
b. Instructors shall apply adult education best practices, emphasizing learner participation and activity.
c. Lecturing should be less than 30 percent of class time. d. Training delivery may include problem solving, question/answer, hands-on instruction, practice, evaluation/feedback tools, and lecture to support training objectives.
e. Conduct hands-on instruction according to the following descriptions:
1) Present hands-on demonstrations of at least the following tasks:
a) Proper start-up, shutdown, and normal and alternative operating strategies.
b) Common corrective maintenance repairs for each group. c) Recommended procedures to check/test equipment/system following a corrective maintenance repair.
d) Preventative maintenance points.
e) Calibration, if applicable.
2) Use tools and equipment provided by manufacturer to conduct the demonstrations.
a) Submit requests for supplemental assistance and facilities with the Contractor’s proposed lesson plans.
3) Contractor remains responsible for equipment disassembly or assembly during hands-on training situations involving equipment disassembly or assembly by Owner’s personnel.
f. Training aids:
1) Instructors shall provide needed audio-visual devices such equipment (televisions, video recorder/player, computer, projectors, screens, easels, etc.), models, charts, etc. for each class. 2) Instructor to confirm with Engineer in advance of each class that the classroom will be appropriate for the types of audiovisual equipment to be employed.
10. Training sessions:
a. Provide training sessions for equipment/system as specified in the individual equipment/system section.
b. Include the following information in the agenda:
1) Instructor name.
2) Listing of subjects to be discussed.
3) Time estimated for each subject.
4) Allocation of time for Owner staff to ask questions and discuss the subject matter.
5) List of documentation to be used or provided to support training. c. Owner may request that particular subjects be emphasized, and the agenda be adjusted to accommodate these requests.
d. Digitally record audio and video of each training session. 1) Include classroom and field instruction with question and answering periods.
2) Engineer approval required for producer of video materials from one of the following options:
a) Qualified, professional video production company or individual.
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01756-16 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) 3) Record in digital format and recording shall become property of the Owner with exclusive rights.
a) No video recording agreements will be entered into by the Owner.
4) Media:
a) Video quality shall be 720p HD or greater in MPG, AVCHD, AVI, or MP4 format.
b) Digital color video format.
c) Provide audio portion of the composite CD sufficiently free from electrical interference and background noise to provide complete intelligibility of oral report.
d) Identification: On each copy provide a label with the following information:
(1) Name of training.
(2) Date video was recorded.
e) Display continuous running time.
f) At start of each video recording, record training class name, date, instructor’s name.
g) Provide audio quality that is not degraded during the recording of the field sessions due to background noise, space, distance or other factors.
5) The Contractor shall provide a written release from all claims to the recorded training material produced, if required.
e. Distribute copies of the agenda to each student at the beginning of each training class.
f. Trainees will keep training materials and documentation after the session. g. Distribute Training Evaluation Form following each training session. 1) Training Evaluation Form is included in this Section. 2) Return completed Training Evaluation Forms to Owner’s designated training coordinator immediately after session is completed. 3) Revise training sessions judged "Unsatisfactory" by a majority of attendees.
a) Conduct training sessions again until a satisfactory rating is achieved.
11. Engineer approval of Owner Training is required.
1.08 START-UP PHASE
A. Overview of Start-Up Phase:
1. General:
a. Confirm reliability requirements.
b. Confirm regulatory compliance.
B. Start-Up Period:
1. Contractor responsibilities:
a. Support Owner to operate the Work.
2. Owner responsibilities:
a. Owner to operate the Work.
Commissioning
01756-17 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) b. Owner-provided services, equipment, and/or materials to be as specified in Section 01110 - Summary of Work.
c. Furnish labor, power, chemicals, tools, equipment, instruments, and services required for and incidental to completing commissioning activities in accordance with the approved Commissioning Plans.
3. Prerequisites:
a. Engineer approval of Testing and Training Phase.
4. Witnessed.
5. Duration: 30 days.
6. Engineer approval of Start-Up Period is required to achieve substantial completion.
PART 2 PRODUCTS (NOT USED)
PART 3 EXECUTION (NOT USED)
END OF SECTION
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01756-Attachment A 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED)
ATTACHMENT A - COMMISSIONING FLOWCHARTS
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01756-Attachment A-1 8660F10 July 12, 2023- CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756(CONFORMED)
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01756-Attachment A-2 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756(CONFORMED)
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01756-AttachmentA-3 8660F10 July 12, 2023- CONFORMED
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01756-AttachmentA-4 8660F10 July 12, 2023- CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756(CONFORMED)
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01756-AttachmentA-5 8660F10 July 12, 2023- CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756(CONFORMED)
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01756-Attachment A-6 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756(CONFORMED)
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01756-AttachmentA-7 8660F10 July 12, 2023- CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756(CONFORMED)
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01756-AttachmentA-8 8660F10 July 12, 2023- CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756(CONFORMED)
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01756-Attachment B 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) ATTACHMENT B - MANUFACTURER’S CERTIFICATE OF SOURCE TESTING
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01756-Attachment B-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) MANUFACTURER’S CERTIFICATE OF SOURCE TESTING
OWNER EQPT/SYSTEM
PROJECT NAME EQPT TAG NO.
PROJECT NO. EQPT SERIAL NO.
SPECIFICATION NO.
SPECIFICATION TITLE
Comments:
I hereby certify Source Testing has been performed on the above-referenced equipment/system as defined in the Contract, and results conform to the Contract Document requirements. Testing data is attached.
Date of Execution: , 20
Manufacturer:
Manufacturer’s Authorized Representative Name (print):
(Authorized Signature)
If applicable, Witness Name (print):
(Witness Signature)
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01756-Attachment C 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) ATTACHMENT C - MANUFACTURER’S CERTIFICATE OF INSTALLATION VERIFICATION
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01756-Attachment C-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) MANUFACTURER’S CERTIFICATE OF INSTALLATION VERIFICATION
OWNER EQPT/SYSTEM
PROJECT NAME EQPT TAG NO.
PROJECT NO. EQPT SERIAL NO.
SPECIFICATION NO.
SPECIFICATION TITLE
I hereby certify the installation of the above-referenced equipment/system as defined in the Contract Documents.
NOTES:
Attach written certification report prepared by and signed by the electrical and/or instrumentation subcontractor.
Comments:
I, the undersigned manufacturer’s representative, hereby certify that I am (i) a duly authorized representative of the manufacturer, (ii) empowered by the manufacturer to inspect, approve, and operate this equipment/system, and (iii) authorized to make recommendations required to ensure that the equipment/system furnished by the manufacturer is complete and operational, except as may be otherwise indicated herein. I further certify that all information contained herein is true and accurate.
Date:
Manufacturer:
Manufacturer’s Authorized Representative Name (print):
By Manufacturer’s Authorized Representative:
(Authorized Signature)
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01756-Attachment D 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) ATTACHMENT D - MANUFACTURER’S CERTIFICATE OF FUNCTIONAL COMPLIANCE
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01756-Attachment D-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) MANUFACTURER’S CERTIFICATE OF FUNCTIONAL COMPLIANCE
OWNER EQPT/SYSTEM
PROJECT NAME EQPT TAG NO.
PROJECT NO. EQPT SERIAL NO.
SPECIFICATION NO.
SPECIFICATION TITLE
I hereby certify the Functional Testing of the above-referenced equipment/system as defined in the Contract Documents.
NOTES:
Attach test results with collected data and test report.
Attach written certification report prepared by and signed by the electrical and/or instrumentation subcontractor.
Comments:
I, the undersigned manufacturer’s representative, hereby certify that I am (i) a duly authorized representative of the manufacturer, (ii) empowered by the manufacturer to inspect, approve, and operate this equipment/system, and (iii) authorized to make recommendations required to ensure that the equipment/system furnished by the manufacturer is complete and operational, except as may be otherwise indicated herein. I further certify that all information contained herein is true and accurate.
Date:
Manufacturer:
Manufacturer’s Authorized Representative Name (print):
By Manufacturer’s Authorized Representative:
(Authorized Signature)
WITNESSES
By Owner’s Authorized Representative:
(Authorized Signature)
By Engineer’s Authorized Representative:
(Authorized Signature)
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01756-Attachment E 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED)
ATTACHMENT E - TRAINING EVALUATION FORM
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TRAINING EVALUATION FORM
EQUIPMENT/SYSTEM ITEM:
VENDOR/MANUFACTURER:
DATE: NAME OF REPRESENTATIVE:
1. Was representative prepared? Acceptable Unacceptable or N/A
2. Was an overview description presented? Acceptable Unacceptable or N/A
3. Were specific details presented for system Acceptable Unacceptable or N/A components?
4. Were alarm and shutdown conditions Acceptable Unacceptable or N/A clearly presented?
5. Were step-by-step procedures for starting, Acceptable Unacceptable or N/A stopping, and troubleshooting presented?
6. Were routine/preventative maintenance Acceptable Unacceptable or N/A items clearly identified?
7. Was the lubrication schedule (if any) Acceptable Unacceptable or N/A discussed?
8. Was the representative able to answer all Acceptable Unacceptable or N/A questions?
9. Did the representative agree to research Acceptable Unacceptable or N/A and answer unanswered questions?
10. Comments:
11. Overall Rating: Satisfactory Unsatisfactory
Note:
Sessions judged "Unsatisfactory" by a majority of attendees shall be revised and conducted again until a satisfactory rating is achieved.
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01756-Attachment F 8660F10 July 12, 2023 - CONFORMED
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ATTACHMENT F - COMMISSIONING ROLES AND RESPONSIBILITIES MATRIX
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COMMISSIONING ROLES AND RESPONSIBILITIES MATRIX
NO. TASK OWNER CONTRACTOR ENGINEER
Testing and Training Phase
Source Testing
Source Testing Witness Lead Witness
Review
Manufacturer’s Certificate of Source Testing No Action Lead Review Installation Verification
Structural Anchorage Check Witness Lead Review
Health and Safety Check Witness Lead Review
Manufacturer Requirements Verification No Action Lead Review Contract Documents Verification No Action Lead Review
Manufacturer’s Certificate of Installation Verification No Action Lead Review Functional Testing
Checks Witness Lead Witness,
Review
Tests Witness Lead Witness,
Review
Manufacturer’s Certificate of Functional Compliance No Action Lead Witness, Review
System Testing
System Testing Witness Lead Witness,
Review
Start-Up Phase
Start-Up Lead Support Witness,
Review
Legend:
Lead: Primarily responsible for organization, coordination, and execution of task work product or result.
Support: Assist the lead with organization, coordination, and execution of task work product or result.
Witness: Observe and document completion of task work product or result.
No Action: Limited or no involvement.
Review: Approve for compliance with Contract Documents or reject.
Commissioning
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ATTACHMENT G - FUNCTIONAL TESTING REQUIREMENTS
Commissioning
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED)
FUNCTIONAL TESTING REQUIREMENTS
System Subsystem
Consecutive
Day Test
Duration (Days)
Significant
Interruption
Duration (Hours) Test Liquid
System Operated
By
Dechlorination Structure 1 2 Test Water Contractor
Control Valves
Sample Pumps
Chlorine Sampler
3-way Valve
Advanced Water
Treatment (AWT)
Clarifier/Filter System1
5 8 Test Water Manufacturer
Blowers
Coagulant Feed
Pumps
Rapid Mix Pump
Waste Gate Actuator
Backwash Pump Station 3 4 Test Water Contractor
Sample Pump
Chlorine Sampler
Flow Control Valves
Carousel Pump Station 3 4 Test Water Contractor
Pumps
Production Augmentation
Unit (PAU)
7 8 Test Water Owner
PAU
PAU Pump Station
Commissioning
01756-Attachment G-2 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01756 (CONFORMED) System Subsystem
Consecutive
Day Test
Duration (Days)
Significant
Interruption
Duration (Hours) Test Liquid
System Operated
By
Recycled Water
Distribution System
7 8 Test Water
Recycled Water
Pumps
Recycled Water
Storage Tank
Recycled Water
Pipeline
Tank Fill Valve
Tank Level
Notes:
1. Additional testing requirements specified in Section 11802 - Packaged Water Treatment System Rehabilitation.
A. Schedule delays:
1. Changes in the dates for source testing less than 30 days of the date provided in the latest approved Commissioning Schedule are considered delays.
2. Contractor is responsible for associated costs resulting from delays:
a. In person and/or virtual witnessing.
b. Travel costs and witness labor costs.
1) Witness labor costs at $250 per hour.
B. Repeat test costs:
1. Contractor is responsible for associated costs for repeat testing:
a. In person and/or virtual witnessing.
b. Travel costs and witness labor costs.
1) Witness labor costs at $250 per hour.
Water Leakage Test for Concrete Structures
01759-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01759 (CONFORMED) SECTION 01759
WATER LEAKAGE TEST FOR CONCRETE STRUCTURES
PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Hydrostatic leakage test for concrete water-holding structures.
1.02 REFERENCES
A. Abbreviations and acronyms.
B. Definitions.
1. Containment Structure Lined: Liquid-containing structure with barrier coating or membrane applied to the inside surfaces to prevent leaking of contents to the outside.
2. Containment Structure, unlined: Liquid containing structure where only the concrete structure itself is used to prevent leaking of contents to the outside.
3. Damp spots: Surfaces where visible moisture can be picked up by a dry hand.
C. Reference standards.
1.03 ADMINISTRATIVE REQUIREMENTS
A. Coordination.
B. Pre-installation meetings.
C. Sequencing.
D. Scheduling.
1.04 SUBMITTALS
A. Product data.
B. Shop drawings:
1. Description and details of each evaporation/precipitation-measuring device anticipated for use during the test.
C. Samples.
D. Certificates.
E. Delegated design submittals.
Water Leakage Test for Concrete Structures
01759-2 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01759 (CONFORMED) F. Tests and evaluation reports:
1. Results of water leakage test for each structure and for each portion of a structure designated for testing.
G. Manufacturer instructions.
H. Source quality control submittals.
I. Field/site quality control submittals.
J. Manufacturer reports.
K. Sustainable design submittals.
L. Special procedure submittals:
1. Testing plan for each structure, or portion thereof, required to be tested. a. Describe methods of obtaining water for testing and of releasing water for disposal, including provisions for dechlorination if required. b. Include plans showing locations where measurements will be made and locations of evaporation/precipitation-measuring device. c. Indicate plans for filling and draining structure(s). d. Include schedule showing duration of test for each structure or cell to be tested, date and time for start of each test, dates and times of observations and measurements during the test, dates and times for closeout of testing procedures, and date for submittal of final results.
2. Proposed procedures and products for repair of leaks.
M. Qualifications statements.
PART 2 PRODUCTS (NOT USED)
PART 3 EXECUTION
3.01 GENERAL
A. Test structures and portions of structures listed in the following paragraphs for water leakage.
1. Unless otherwise specified, the Contractor shall:
a. Obtain all required permits for discharging testing water. b. Provide dechlorination of such water if required by the permits. c. Prepare and fill the structures.
d. Provide access and equipment required for testing and for recording test results.
e. Take measurements and make observations required for testing.
2. At all times during testing, the Engineer shall have access to observe measurements by others or to make independent measurements.
B. Test the following concrete structures for water leakage:
1. Recycled Water Storage Tank.
Water Leakage Test for Concrete Structures
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01759 (CONFORMED) C. Required preparation for testing is designated in this Section. Waiver of, or failure to complete preparations shall not change the testing criteria or approval criteria for the areas tested.
D. Retest structures and portions of structures until the evaluation criteria are satisfied.
3.02 TEST WATER SOURCE AND DISPOSAL
A. Water used for the first filling of the tank will be furnished by Owner.
B. In the event that retesting is required, Contractor shall bear the cost of refilling the tank for subsequent tests.
3.03 PREPARATION
A. For each structure to be tested, prepare and submit a plan showing schedule and sequence of activities, method of filling, and methods of disposing of test water.
B. Sequencing requirements:
1. Complete construction of concrete structure and cure concrete to obtain minimum specified 28-day compressive strength as specified in Section 03300 - Cast-in-Place Concrete.
a. Do not begin tests until all portions of structure are complete and have reached their minimum specified 28-day compressive strength. b. Do not begin tests until at least 14 days have passed since completion of the last concrete placement.
2. Complete tests before:
a. Covering any surface of the structure with materials that might mask the location of leaks or obscure damp concrete surfaces. Such coverings include, but are not limited to basin bottom grout, masonry veneer, stucco, plaster, and other coatings.
b. Installation of equipment, unless otherwise approved by the Engineer. c. Backfilling structures to elevations above the limits indicated in the following paragraphs.
3. Liners and coatings:
a. Install liners that are mechanically locked to the concrete surface during placement of plastic concrete and before leakage testing. 1) Examine liners for pinholes, tears, and partially fused splices, complete all required liner integrity testing, and make required repairs before commencing leakage testing.
b. Unless otherwise specified, do not install surface-applied protective or decorative coatings and linings until leakage tests have been completed.
C. Weather requirements:
1. Tests on structures with tops open to the atmosphere shall not be scheduled for periods when the 10-day weather forecast indicates a substantial change in weather patterns.
2. Measurements of water surface levels in the structure shall not be scheduled for periods when the weather forecast indicates a difference of more than
Water Leakage Test for Concrete Structures
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01759 (CONFORMED) 35 degrees Fahrenheit between the ambient temperature readings at the times of initial and final measurements.
3. Tests shall not be scheduled for periods when the 10-day weather forecast indicates that the water surface may freeze before the test is complete.
D. Groundwater requirements:
1. Bring groundwater to a level below the top of the floor slab and maintain at that level for the duration of the test.
E. Clean interior of structure:
1. Remove dirt, contaminants, and construction debris.
2. Flush floors and sumps to provide clean surfaces.
3. Remove standing water that would interfere with examination of surfaces, cracks, or joints.
F. Observe the structure, or portions of the structure being tested, for potential leak locations:
1. Give particular attention to cracks, open joints, voids, and honeycombed and repaired surfaces.
2. Visually observe openings, fitting, and pipe penetrations in the structure at both faces, if possible.
3. Repair potential leak locations in accordance with these Specifications and as approved by the Engineer.
4. Backfill excavations to the top of the structure foundation. Do not place backfill against water-bearing walls or over footings unless approved in advance by the Engineer.
a. If requesting backfilling of walls before testing, include a description of methods that will be used to detect leakage in the backfilled areas. b. Engineer’s approval of backfilling before testing shall not relieve Contractor of the responsibility to conduct leakage tests, to satisfy the leakage acceptance criteria for the structure, or to repair leaking portions of the structure, including those portions below or behind the backfill.
5. See Drawings and Section 02300 - Earthwork for requirements to provide wall stability before backfilling.
G. Inlets to/outlets from the structure:
1. Make inlets to and outlets from the structure watertight. a. Include valves; stop, sluice, and slide gates; and temporary bulkheads as required.
b. Inlets and outlets not required to be operable may be temporarily sealed before testing of the compartments to which they open.
c. Secure inlets used to fill the structure for testing to ensure that no water is entering or leaving the structure once it has been filled to the test level.
2. Adjustments to measured leakage at inlets and outlets based on manufacturer’s or Contractor’s estimates will not be allowed. a. Adjustments to measured leakage may be permitted by the Engineer, and, at his/her discretion, only when the Contractor makes specific measurements of leakage at each individual inlet and outlet using methods approved by the Engineer.
Water Leakage Test for Concrete Structures
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3.04 HYDROSTATIC LEAKAGE TEST FOR OPEN OR COVERED CONTAINMENT STRUCTURES (“HST-100”)
A. Isolate sections of water-holding structures that can be isolated in actual operation.
Fill and test sections for leakage separately.
1. Fill structures and sections of structures scheduled for testing to 3 inches below the overflow level of open structures.
B. Initial rate for filling of structures shall not exceed 8 feet in 8 hours.
C. HST-100 testing includes 2 parts, “Qualitative Testing,” and “Quantitative Testing,” as described in the following paragraphs:
1. HST-100, Part 1 - Qualitative Testing:
a. During the first 24 hours after structures are filled, examine exposed concrete surfaces for damp spots or flowing water.
1) Make observations in early morning, at midday, and in late afternoon. 2) Continue observations through the duration of the Quantitative Testing period.
3) Pay particular attention to conditions at joints, honeycombed areas, cracks, and repaired portions of the structure.
b. Evaluation criteria:
1) The structure shall be considered to have failed these Qualitative Testing requirements if any of the following conditions are observed. a) Water droplets or moist areas on an outside surface that could only have originated inside the structure.
b) Water is flowing or seeping from joints, cracks, or surfaces. (1) Exception: Dampness or wetness on top of a footing, in the absence of flowing water, shall not be considered as failure to meet this criterion.
c) Moisture can be transferred to a dry hand from the outside surfaces of the filled area.
c. Repairs and retesting:
1) Where damp spots or flowing water as described in the preceding paragraphs are observed, mark locations, provide repairs, and retest the structure as specified in subsequent paragraphs.
2. HST-100 - Part 2: Quantitative Testing:
a. If approved by the Engineer, Quantitative Testing may begin before repairs are made to areas failing Part 1 of this test; however:
1) Adjustments to volume loss calculations of Quantitative Testing based on observed leakage will not be permitted.
2) All defects identified for repair during Qualitative Testing shall be repaired to the satisfaction of the Engineer before approval of the structure.
b. Report the results of quantitative testing.
1) Submit completed Attachment A - Leakage Test Report or at a minimum, include the information specified in Attachment A - Leakage Test Report.
Water Leakage Test for Concrete Structures
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01759 (CONFORMED) c. Unlined concrete structures:
1) Fill to the designated water surface elevation. Maintain that level for at least 72 hours before recording initial water levels for leakage test. 2) Duration of test:
a) Recycled Water Tank Structure: 24 hours.
d. Lined concrete structures and secondary containment areas:
1) Fill to the designated water surface elevation. Recording of water levels for leakage tests may begin as soon as the designated water surface level is reached and the water surface is calm. 2) Duration of test: 72 hours (3 days).
e. Measurements: Water level:
1) Record water levels at 24-hour intervals for the full duration of the test period.
2) Measure water levels at not less than 2 locations on opposite ends of the structure, and preferably at 4 locations spaced equally around the structure. Mark locations on the structure and take measurements at the same locations throughout the duration of the test. 3) Measure, to an accuracy of 1/16 inch, the vertical distance to the water surface from a fixed point on the structure above. f. Measurements: Temperatures:
1) As part of the first and last sets of level measurements, record water temperature at a depth of 18 inches below the water surface.
Measure temperature at the same locations where level
measurements are taken.
2) Record ambient temperature at the time of each water level measurement.
g. Measurements: Evaporation and precipitation:
1) Measure evaporation and precipitation by floating pans inside the structures during testing.
a) For uncovered structures, measure both evaporation and precipitation.
b) For covered structures that are well ventilated, measure evaporation.
2) Measure using specially constructed clear containers:
a) Provide clear plastic, calibrated, open-top containers not less than 18 inches in diameter and 18-inches deep.
b) Partially fill containers with water and float inside the structure.
Make provisions to hold containers in place at each
measurement location, but away from structure walls and items passing overhead, such as beams or pipes.
c) Measure initial depth of water in each device. Measure changes in water level in each device at the same time measurements of the water level inside the structure are taken.
h. Restart of test:
1) The Engineer may order a restart of the test when, in the Engineer’s opinion, measurements have become unreliable due to unusual precipitation or other factors.
2) If measurements or observed leakage during the testing period indicate that the allowable leakage requirements will be exceeded, the test may be terminated before completion of the full test period.
Water Leakage Test for Concrete Structures
01759-7 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01759 (CONFORMED) Take appropriate actions to correct problems before restarting the test.
i. Calculations of leakage test results:
1) For each section of the structure tested, use water surface level records to calculate average loss of volume per 24-hour interval. a) For each 24-hour interval during the test, calculate the average of all measured drops in water level around the structure. b) Use the average drop thus determined to calculate an average loss of volume for each 24-hour interval.
2) Adjustments to leakage calculations:
a) For uncovered basins, calculations shall be corrected for precipitation added to the structure.
b) Calculations may be corrected for evaporation and water temperature.
j. Evaluation criteria:
1) Unless otherwise specified, the average loss of volume during any 24-hour interval shall not exceed the limits shown in Table A.
Table - Loss of Volume Criteria for Leakage Tests
Structure Type Maximum Loss of Water Volume
• Structure fully lined prior to leakage test.
• Secondary containment areas.
No measurable loss over 72-hour test period.
• Structure with monolithically placed
membrane floor slab.
0.0125 percent of volume per 24-hour period.
• Concrete paved canals, drying beds,
lagoons, and similar structures.
0.100 percent of volume per 24-hour period.
• Other containment structures. 0.050 percent of volume per 24-hour period. k. Repairs and retesting:
1) Structures and portions of structures that have satisfied the qualitative requirements of HST-100, but have failed to satisfy the quantitative requirements of HST-100 may be immediately retested for volume loss.
a) If the structure fails the second test for volume loss, the structure shall be drained, and the Contractor shall observe the interior for probable areas of leakage.
b) The structure shall not be retested until repairs to the probable areas of leakage are complete.
3.05 REPAIRS FOR RETESTING
A. Locations showing damp spots or flowing water:
1. Mark locations of visible leaks and damp spots.
2. Drain structures for repair.
3. Repair defects causing damp spots and flowing water using methods specified in Section 03300 - Cast-in-Place Concrete and approved by the Engineer. a. Repair both interior and exterior surfaces and make structures watertight.
Water Leakage Test for Concrete Structures
01759-8 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01759 (CONFORMED) b. Submit proposed repair products and procedures for Engineer’s review. c. Refill structures for retesting.
4. Repeat filling, observations, and repairs until no leaks or damp spots appear.
B. Structures for which water volume loss exceeds the limits specified after adjustments for evaporation, and precipitation:
1. Determine cause of volume loss.
2. Drain structures of water.
3. Repair defects causing loss of water volume using methods specified in Section 03300 - Cast-in-Place Concrete and approved by the Engineer. a. Submit proposed repair products and procedures for Engineer’s review.
4. Refill water-holding structures.
5. Repeat testing and repairs until volume loss does not exceed specified limits.
END OF SECTION
Water Leakage Test for Concrete Structures
01759-Attachment A 8660F10 July 12, 2023 - CONFORMED
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ATTACHMENT A - LEAKAGE TEST REPORT
Water Leakage Test for Concrete Structures
01759-Attachment A-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01759 (CONFORMED)
LEAKAGE TEST REPORT
PROJECT: SUBMITTED BY:
STRUCTURE: WITNESSED BY:
AREA: TEST DATES:
TEST DURATION: TEST DURATION:
Surface area of structure tested: (square feet)
Volume of structure tested: (cubic feet)
Volume of structure tested: (gallons)
Measured loss through gates, etc.: (gallons / day)
Allowable loss of water volume: (per day)
Allowable loss of water volume: (% in 24 hours)
Allowable measured loss over test duration (inches):
Measured loss of water: (gallons / day - From E below)
Measured loss of water volume (%): (in 24 hours - From E below) Water Temperature: Start of test: °F End of test: °F
Water Surface Elevation (top of structure to top of water) Location #1 Location #2 Location #3 Location #4 Initials** Day Date Time (inches) (inches) (inches) (inches)
1 2
3 4
5 Changes in Level:
A. Average change in level (feet): (Average of total charges for all locations) B. Correction for precipitation: (Measured from pan)
C. Correction for evaporation: (Measured from pan)
D. Corrected change in level (CL):
E. Total days tested:
F. Average measured % water loss in 24
hours: =
(CL) x (surface area) x 100
(initial water volume) x (number of test
days)
Notes and field observations∗∗
∗∗ Place date and initials at the beginning of each entry
Closeout Procedures
01770-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01770 (CONFORMED) SECTION 01770
CLOSEOUT PROCEDURES
PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Contract closeout requirements.
1.02 REFERENCES
A. American Water Works Association (AWWA).
1.03 FINAL CLEANING
A. Perform final cleaning prior to inspections for Substantial Completion.
B. Employ skilled workers who are experienced in cleaning operations.
C. Use cleaning materials which are recommended by manufacturers of surfaces to be cleaned.
D. Prevent scratching, discoloring, and otherwise damaging surfaces being cleaned.
E. Clean roofs, gutters, downspouts, and drainage systems.
F. Broom clean exterior paved surfaces and rake clean other surfaces of site work:
1. Police yards and grounds to keep clean.
G. Remove dust, cobwebs, and traces of insects and dirt.
H. Clean grease, mastic, adhesives, dust, dirt, stains, fingerprints, paint, blemishes, sealants, plaster, concrete, and other foreign materials from sight-exposed surfaces, and fixtures and equipment.
I. Remove non-permanent protection and labels.
J. Polish waxed woodwork and finish hardware.
K. Wash tile.
L. Wax and buff hard floors, as applicable.
M. Wash and polish glass, inside and outside.
N. Wash and shine mirrors.
O. Polish glossy surfaces to clear shine.
Closeout Procedures
01770-2 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01770 (CONFORMED) P. Vacuum carpeted and soft surfaces.
Q. Clean permanent filters and replace disposable filters when heating, ventilation, and air conditioning units were operated during construction.
R. Clean ducts, blowers, and coils when units were operated without filters during construction.
S. Clean light fixtures and replace burned-out or dim lamps.
T. Probes, elements, sample lines, transmitters, tubing, and enclosures have been cleaned and are in like-new condition.
1.04 WASTE DISPOSAL
A. Arrange for and dispose of surplus materials, waste products, and debris off-site:
1. Prior to making disposal on private property, obtain written permission from Owner of such property.
B. Do not fill ditches, washes, or drainage ways which may create drainage problems.
C. Do not create unsightly or unsanitary nuisances during disposal operations.
D. Maintain disposal site in safe condition and good appearance.
E. Complete leveling and cleanup prior to Final Completion of the Work.
1.05 TOUCH-UP AND REPAIR
A. Touch-up or repair finished surfaces on structures, equipment, fixtures, and installations that have been damaged prior to inspection for Substantial Completion.
B. Refinish or replace entire surfaces which cannot be touched-up or repaired satisfactorily.
1.06 FINAL CLEANING AND DISINFECTION OF SYSTEMS OF PLANT FACILITIES A. Clean channels, pipe, basins, reservoirs, and tanks before running of 7-day test, or before facility goes on stream when 7-day test is not required. Membranes are to be installed after the sub-system function testing and before the membrane system functional testing.
B. Wash, wherever practicable, or broom sweep channels, pipe, basins, reservoirs, and tanks.
C. Disinfect filter basins, reservoirs, clear wells, tanks, channels, and piping intended to carry potable water as follows or in accordance with AWWA Standards.
D. Provide ample sampling outlets in pipe for testing.
E. Fill pipe and other plant facilities with chlorine solution of sufficient strength to retain residual of not less than 10 parts per million at end of 24 hours.
Closeout Procedures
01770-3 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01770 (CONFORMED) F. When reservoirs and basins are too large to be economically disinfected by filling with chlorine solution, spray reservoirs and basins with solution containing 100 parts per million of chlorine.
G. After disinfection, rinse entire potable water system with potable water sufficient to reduce chlorine residual to not more than 0.6 parts per million throughout system before system is put into service.
1.07 FINAL CLEANING AND DISINFECTION OF SYSTEMS OF POTABLE WATER MAINS A. Clean interior of pipe and fittings.
B. When pipe contains dirt that cannot be removed by flushing, swab pipe interiors with solution containing not less than 500 parts per million of chlorine until clean.
C. Flush 12-inch in diameter and smaller pipe as thoroughly as available water sources will permit.
D. Fill pipe with chlorine solution of sufficient strength to provide 10 parts per million chlorine residual at end of 24 hours.
E. Flush pipes with potable water until chlorine residual is less than 0.6 parts per million before pipe are put into service.
1.08 CLOSEOUT DOCUMENTS
A. Submit the following Closeout Submittals before Substantial Completion:
1. Punch list of items to be completed or corrected with the request for issuance of Substantial Completion.
2. Evidence of Compliance with Requirements of Governing Authorities.
3. Project Record Documents.
4. Approved Operation and Maintenance Manuals.
5. Approved Warranties and Bonds.
6. Keys and Keying Schedule.
7. Completed contract requirements for commissioning and process start-up.
B. Submit the following Closeout Submittals before final completion of the Work and at least 7 days prior to submitting Application for Final Payment:
1. Punch list of items have been completed and Engineer and Owner are satisfied that all deficiencies are corrected.
2. Evidence of Payment and Release of Liens or Stop Payment Notices as outlined in Conditions of the Contract.
3. Release of claims as outlined in Conditions of the Contract.
4. Submit certification of insurance for products and completed operations, as specified in the General Conditions.
5. Final statement of accounting.
6. Submit Final (As-Built) Schedule as specified in Section 01321 - Schedules and Reports.
Closeout Procedures
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1.09 EVIDENCE OF COMPLIANCE WITH REQUIREMENTS OF GOVERNING
AUTHORITIES
A. Submit the following:
1. Certificate of Occupancy.
2. Certificates of Inspection.
1.10 PROJECT RECORD DOCUMENTS
A. Maintain at Project site, available to Owner and Engineer, 1 copy of the Contract Documents, shop drawings, and other submittals in good order:
1. Mark and record field changes and detailed information contained in submittals and change orders.
2. Record actual depths, horizontal and vertical location of underground pipes, duct banks, and other buried utilities. Reference dimensions to permanent surface features.
3. Identify specific details of pipe connections, location of existing buried features located during excavation, and the final locations of piping, equipment, electrical conduits, manholes, and pull boxes.
4. Identify location of spare conduits including beginning, ending, and routing through pull boxes and manholes. Record spare conductors, including number and size, within spare conduits and filled conduits.
5. Provide schedules, lists, layout drawings, and wiring diagrams.
6. Make annotations in electronic format or hard copy format with erasable colored pencil conforming to the following color code:
Additions: Red
Deletions: Green
Comments Blue
Dimensions: Graphite
B. Maintain documents separate from those used for construction:
1. Label documents "RECORD DOCUMENTS."
C. Keep documents current:
1. Record required information at the time the material and equipment is installed and before permanently concealing.
2. Engineer will review Record Documents weekly to ascertain that changes have been recorded.
D. Affix civil engineer's or professional land surveyor's signature and registration number to Record Drawings to certify accuracy of information shown.
E. Deliver Record Documents with transmittal letter containing date, Project title, Contractor's name and address, list of documents, and signature of Contractor.
F. Record Documents will be reviewed monthly to determine the percent complete for the monthly pay application.
Closeout Procedures
01770-5 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01770 (CONFORMED) G. Updated Record Documents are a condition for Engineer’s recommendation for progress payment.
H. Final Schedule Submittal as specified in Section 01321 - Schedules and Reports.
1.11 MAINTENANCE SERVICE
A. Maintenance service as specified in technical specifications.
1.12 SUBSTANTIAL COMPLETION
A. Obtain Certificate of Substantial Completion.
1.13 FINAL COMPLETION
A. When Contractor considers the Work is complete, submit written certification that:
1. Work has been completed in accordance with the Contract Documents:
2. Punch list items have been completed or corrected.
3. Work is ready for final inspection.
B. Engineer will make an inspection to verify the status of completion with reasonable promptness.
C. Should the Engineer consider that the Work is incomplete or defective:
1. Engineer will promptly notify the Contractor in writing, listing the incomplete or defective work.
2. Contractor shall take immediate steps to remedy the stated deficiencies and send a second written certification to the Engineer that the Work is complete.
3. Engineer shall re-inspect the Work.
1.14 FINAL ADJUSTMENT OF ACCOUNTS
A. Submit a final statement of accounting to the Engineer at least 7 days prior to final Application for Payment.
B. Statement shall reflect all adjustments to the Contract amount.
1. The original Contract amount.
2. Additions and deductions resulting from:
a. Change Orders.
b. Units installed and unit prices.
c. Set-offs for uncorrected or incomplete Work.
d. Set-offs for liquidated damages.
e. Set-offs for reinspection payments.
f. Extended engineering and/or inspection services and inspection overtime. g. Excessive shop drawings review cost by the Engineer. h. Other adjustments.
3. Total Contract amount, as adjusted.
4. Previous payments.
5. Remaining payment due.
C. Engineer will prepare a final Change Order reflecting approved adjustments to the Contract amount which were not previously made by Change Orders.
Closeout Procedures
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1.15 FINAL APPLICATION FOR PAYMENT
A. Contractor shall submit the final Application for Payment reflecting the agreed upon information provided in the final statement of accounting.
PART 2 PRODUCTS
2.01 SPARE PARTS
A. Owner may request advanced delivery of spare parts, maintenance products, and special tools.
1. Deduct the delivered items from the inventory list and provide transmittal documentation.
B. Prior to Substantial Completion, arrange to deliver spare parts, maintenance products, and special tools to Owner at a location on site chosen by the Owner.
1. Provide itemized list of spare parts and special tools that matches the identification tag attached to each item.
2. Owner and Engineer will review the inventory and the itemized list to confirm it is complete and in good condition prior to signing for acceptance.
PART 3 EXECUTION (NOT USED)
END OF SECTION
Operation and Maintenance Manuals
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OPERATION AND MAINTENANCE MANUALS
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Preparation and submittal of manual with requirements to operate and maintain the equipment.
1.02 PREPARATION
A. General requirements:
1. Provide dimensions in English units.
2. Assemble material, where possible, in the same order within each volume.
3. Reduce drawings and diagrams to 8 1/2 by 11-inch size, if possible unless otherwise specified.
4. Complete forms on computer, handwriting not acceptable.
5. Delete items or options not provided in the supplied equipment or system.
6. Provide package control system annotated ladder logic for PLC, if applicable.
B. Hard copy requirements:
1. Binders: 3-ring with rigid covers.
a. Break into separate binders as needed to accommodate large size.
2. Utilize numbered tab sheets to organize information.
3. Provide original and clear text on reproducible non-colored paper, 8 1/2 by 11-inch size, 24 pound paper.
4. Drawings larger than 8 1/2 by 11 inch:
a. Fold drawings separately and place in envelope bound into the manual. b. Label each drawing envelope on the outside regarding contents.
C. Electronic requirements:
1. File format:
a. Entire manual in PDF format.
1) Include text and drawing information.
2) Provide a single PDF file even if the hard copy version is broken into separate binders due to being large.
3) Create PDF from the native format of the document (Microsoft Word, graphics programs, drawing programs, etc.).
a) If material is not available in native format and only available in paper format, remove smudges, fingerprints, and other
extraneous marks before scanning to PDF format.
b) Hard copy record drawing requirements:
(1) Provide a single multipage PDF file of each set of the scanned drawings.
(2) Page 1 shall be the cover of the drawing set.
Operation and Maintenance Manuals
01782-2 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01782 (CONFORMED) c) At file opening, display the entire cover.
(1) Scan drawings at 200 to 300 dots per inch (DPI), black and white, Group IV Compression, unless otherwise specified. (2) Scan drawings with photos in the background at 400 dots per inch (DPI), black and white, Group IV Compression.
4) Pagination and appearance to match hard copy.
5) Searchable.
6) Scanned images are not acceptable.
7) Bookmarks:
a) Bookmarks shall match the table of contents.
b) Bookmark each section (tab) and heading.
c) Drawings: Bookmark at a minimum, each discipline, area designation, or appropriate division.
d) At file opening, display all levels of bookmarks as expanded. 8) Thumbnails optimized for fast web viewing.
b. Drawing requirements:
1) Provide additional copy of drawings in most current version of AutoCAD format.
2) Drawings shall have a white background.
3) Drawing shapes shall not degrade when closely zoomed. 4) Screening effects intended to de-emphasize detail in a drawing must be preserved.
5) Delete items or options not provided in the supplied equipment or system.
2. Media:
a. USB flash drive.
b. Secure File Transfer Protocol (SFTP).
3. Label media with the following information:
a. Operation and Maintenance Manual.
b. Equipment name.
c. Specification Section Number
d. Equipment tag number.
e. Owner's name.
f. Project number and name.
g. Date.
4. If multiple submittals are made together, each submittal must have its own subdirectory that is named and numbered based on the submittal number.
1.03 CONTENTS
A. Table of Contents: General description of information provided within each tab section.
B. Complete Attachment A - Equipment Summary Form.
C. Description of system and components.
D. Description of equipment function, normal operating characteristics, and limiting conditions.
Operation and Maintenance Manuals
01782-3 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01782 (CONFORMED) E. On-line resources.
F. Telephone resources.
G. Approved submittals.
1. Markup with any field changes.
2. Final programming.
H. Start-up procedures: Recommendations for installation, adjustment, calibration, and troubleshooting.
I. Operating procedures:
1. Step-by-step instructions including but not limited to the following:
a. Safety precautions and applicable Safety Data Sheets. b. Guidelines.
c. Other information as needed for safe system operation and maintenance.
J. Preventative maintenance procedures:
1. Recommended steps and schedules for maintaining equipment.
2. Troubleshooting.
K. Lubrication information: Required lubricants and lubrication schedules.
L. Overhaul instructions: Directions for disassembly, inspection, repair and reassembly of the equipment; safety precautions; and recommended tolerances, critical bolt torques, and special tools that are required.
M. Manufacturer's technical reference manuals.
PART 2 PRODUCTS (NOT USED)
PART 3 EXECUTION (NOT USED)
END OF SECTION
Operation and Maintenance Manuals
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ATTACHMENT A - EQUIPMENT SUMMARY FORM
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EQUIPMENT SUMMARY FORM
1. EQUIPMENT ITEM
2. MANUFACTURER
3. EQUIPMENT TAG NUMBER(S)
4. LOCATION OF EQUIPMENT
5. WEIGHT OF INDIVIDUAL COMPONENTS (OVER 100 POUNDS)
6. NAMEPLATE DATA -
Horsepower
Amperage
Voltage
Service Factor (S.F.)
Speed
ENC Type
Capacity
Other
7. MANUFACTURER'S LOCAL REPRESENTATIVE
Name
Address
Telephone Number
8. MAINTENANCE REQUIREMENTS:
Maintenance
Operation Frequency
Lubricant (if
applicable) Comments
(List each operation
required. Refer to
specific information in
Manufacturer’s
Manual, if applicable)
(List required
frequency of each
maintenance
operation)
(Refer by symbol to
lubricant list as
required)
Operation and Maintenance Manuals
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9. LUBRICANT LIST:
Reference
Symbol Conoco Phillips Exxon/Mobil BP/Amoco Other (List) (Symbols used in
Item 7 above)
(List equivalent lubricants, as distributed by each manufacturer for the specific use recommended)
10. SPARE PARTS (recommendations)
11. COMMENTS
12. GENERAL INFORMATION:
Date Accepted*:
Expected Life*:
Project Name &
Number:
Design Engineer:
13. WARRANTY:
Start Date:
Expiration Date:
Prorated:
Warranties and Bonds
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WARRANTIES AND BONDS
PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Warranty and bonds requirements.
1.02 SUBMITTALS
A. For each item of material or equipment furnished under the Contract:
1. Submit manufacturer's warranty prior to fabrication and shipment of the item from the manufacturer's facility.
2. Submit manufacturer's special warranty when specified.
B. Provide consolidated warranties and bonds within 15 calendar days of Substantial Completion.
1. Contents:
a. Organize warranty and bond documents:
1) Include Table of Contents organized by specification section number and the name of the product or work item.
b. Include each required warranty and bond in proper form, with full information, certified by manufacturer as required, and properly executed by Contractor, or subcontractor, supplier, or manufacturer. c. Provide name, address, phone number, and point of contact of manufacturer, supplier, and installer, as applicable.
2. Hardcopy format:
a. Submit 2 copies.
b. Assemble in 3 D-side ring binders with durable cover. c. Identify each binder on the front and spine with typed or printed title "Warranties and Bonds"; Project Name or Title, and the Name Address and Telephone Number of the Contractor.
3. Electronic copy in PDF format:
a. Submit 1 copy.
1.03 OWNER'S RIGHTS
A. Owner reserves the right to reject warranties.
B. Owner reserves the right to refuse to accept Work for the project if the required warranties have not been provided.
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1.04 RELATIONSHIP TO GENERAL WARRANTY AND CORRECTION PERIOD A. Warranties specified for materials and equipment shall be in addition to, and run concurrent with, both Contractor's general warranty and the correction period requirements.
B. Disclaimers and limitations in specific materials and equipment warranties do not limit Contractor's general warranty, nor does such affect or limit Contractor's performance obligations under the correction period.
1.05 MANUFACTURER'S 1 YEAR WARRANTY MINIMUM REQUIREMENTS A. Written warranty issued by item's manufacturer.
B. Project-specific information, properly executed by product manufacturer, and expressly states that its provisions are for the benefit of the Contactor.
C. Covers all costs associated with the correction of the defect, including but not limited to removal of defective parts, new parts, labor, and shipping.
D. Provides a timely response to correct the defect.
1. Manufacturer shall provide, in a timely fashion, temporary equipment as necessary to replace warranted items requiring repair or replacement, when warranted items are in use and are critical to the treatment process, as defined by Owner.
E. Warranty commence running on the date of substantial completion.
1. For items of Work for which acceptance is delayed beyond Date of Substantial Completion, submit warranty within 10 calendar days after acceptance, listing date of acceptance as beginning of warranty period.
F. Duration of Warranty: 1 year.
1.06 MANUFACTURER'S SPECIAL WARRANTY
A. Manufacturer's special warranty is a written warranty published by the manufacturer which includes the requirements as specified in the Technical Section.
1. Project-specific information and requirements.
2. Properly executed by product manufacturer.
3. Expressly states that its provisions are for the benefit of the Contractor or Owner.
4. Manufacturer's special warranties commence on the date that the associated item is certified by Engineer as substantially complete.
1.07 WARRANTY WORK
A. Contractor's responsibilities:
1. Manufacturer's disclaimers and limitations on product warranties do not relieve the Contractor of the warranty on the work that incorporates the product, nor does it relieve suppliers, manufacturers, and subcontractors required to countersign special warranties with Contractor.
Warranties and Bonds
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01783 (CONFORMED) B. Replacement cost:
1. Upon determination that work covered by warranty has failed, replace or rebuild the work to an acceptable condition complying with requirement of the Contract Documents.
a. Contractor is responsible for the cost of replacing or rebuilding defective work regardless of whether Owner has benefited from the use of the work through a portion of its anticipated useful service life.
C. Related damages and losses:
1. When correcting warranted work that has failed, remove and replace other work that has been damaged as a result of such failure or that must be removed and replaced to provide access for correction of warranted work.
D. Owner's recourse:
1. Written warranties are in addition to implied warranties, and shall not limit the duties, obligations, rights, and remedies otherwise available under the law, nor shall warranty periods be interpreted as limitation on time in which Owner can enforce such other duties, obligations, rights, or remedies.
E. Reinstatement of warranty:
1. When work covered by a warranty has failed and has been corrected by replacement or rebuilding, reinstate the warranty by written endorsement. a. The reinstated warranty shall be equal to the original warranty with an equitable adjustment for depreciation.
1.08 IMPLIED WARRANTIES
A. Warranty of title and intellectual rights:
1. Except as may be otherwise indicated in the Contract Documents, implied warranty of title required by Laws and Regulations is applicable to the Work and to materials and equipment incorporated therein.
2. Provisions on intellectual rights, including patent fees and royalties, are in the General Conditions, as may be modified by the Supplementary Conditions.
B. Implied warranties: Duration in accordance with Laws and Regulations.
1.09 BONDS
A. Equipment bond and other bond requirements as specified in the Technical Sections.
B. Bonds commence running on the date of substantial completion.
1. For items of Work for which acceptance is delayed beyond Date of Substantial Completion, submit warranty within 10 calendar days after acceptance, listing date of acceptance as beginning of bond period.
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PART 3 EXECUTION (NOT USED)
END OF SECTION
Design Criteria
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DESIGN CRITERIA
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Design criteria for use in the selection of equipment and appurtenances specified in Technical Sections of these Specifications and indicated on the Drawings.
2. Criteria for design of systems, components and equipment fabricated off site and shipped to the Work for installation.
3. Criteria for design of anchors to connect equipment and appurtenances to supports and structures.
B. The criteria in this Section apply throughout the Work, unless additional criteria, or more restrictive criteria, are indicated.
1. Additional criteria and requirements relevant to specific locations, specific materials, and specific equipment are indicated on the Drawings, and in the Technical Sections.
1.02 REFERENCES
A. American Society of Civil Engineers (ASCE):
1. 7-16 - Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE 7).
B. American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE):
1. ASHRAE Fundamentals Handbook.
C. International Code Council (ICC):
1. International Energy Conservation Code (IECC).
2. International Plumbing Code (IPC).
D. Sheet Metal and Air Conditioning Contractor’s National Association (SMACNA):
1. Seismic Restraint Manual: Guidelines for Mechanical Systems, 3rd edition - 2008.
PART 2 PRODUCTS
2.01 DESIGN CRITERIA - SITE INFORMATION
A. The Work located at and adjacent to the Ukiah Wastewater Treatment Plant, Ukiah, California, and in surrounding areas in the City of Ukiah and Mendocino County, California.
1. Street Address: As specified in Section 01110 - Summary of Work.
Design Criteria
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2. Site elevation (approximate):
a. 600 feet above mean sea level.
3. Groundwater elevation:
a. See project geotechnical reports, included as Appendices to the Specifications, for information.
b. For design of buried and partially buried construction.
2.02 DESIGN CRITERIA - REGULATORY REQUIREMENTS
A. Requirements of authorities having jurisdiction over the project are included in Section 01410 - Regulatory Requirements.
2.03 DESIGN CRITERIA - OPERATING ENVIRONMENT
A. The Drawings and Technical Sections include additional criteria and requirements relevant to specific locations, materials, and equipment.
B. Outdoor conditions:
1. International Energy Conservation Code (IECC): Climate Zone 3C.
2. Site climatic data location: Sacramento Executive Airport (approximately 154 miles from site), WMO 72483.
3. Temperature criteria: As specified in the following Table: Design Temperatures - Outdoor Criteria in Accordance with ASHRAE Fundamentals Handbook.
Table: Design Temperatures - Outdoor Criteria in Accordance with ASHRAE Fundamentals Handbook
Reference Location: Ukiah Municipal Airport, CA
Condition Criteria
Daily mean range: 60.2 degrees Fahrenheit.
Winter: At or above this temperature 99.6 percent of the time:
29.6 degrees Fahrenheit dry-bulb.
Summer: At or above this temperature 0.4 percent of the time:
99.9 degrees Fahrenheit dry-bulb.
4. Rainfall intensity:
a. Reference: International Plumbing Code (IPC):
1) 1.5 inches per hour (City of Ukiah Building Design Value).
C. Indoor Conditions:
1. HVAC schedules as indicated on the Drawings.
2. Humidity:
a. Moisture/humidity conditions: As specified, and as defined in individual equipment sections.
2.04 DESIGN CRITERIA - STRUCTURAL
A. General:
1. Criteria for structural design of:
a. Equipment at locations subject to seismic events.
Design Criteria
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01850 (CONFORMED) b. Equipment exposed to outdoor environments.
c. Equipment supports and bracing, and anchorage of such items to building and non-building structures.
d. Structures provided for the Work through Delegated Design. e. Manufactured and prefabricated structures, and anchorage of such structures to foundations or other supporting elements.
2. Structural design criteria used by the engineer of record and required by the building code to be indicated on the Drawings, are included in "Design Criteria" notes on the Drawings for each structure.
B. Delegated Design:
1. As specified in Section 01357 - Delegated Design Procedures.
2. Structural engineering design shall be performed by a Civil or Structural Engineer licensed in the State of California.
C. Structure risk category:
1. Develop design loads and provide detailing in accordance with the provisions of ASCE 7 and the building code specified in Section 01410 - Regulatory Requirements, based on the Structure Risk Category indicated in Table:
Project Structures - Risk Category and Seismic Design Information.
D. Seismic loads:
1. Seismic design parameters: Design spectral response acceleration:
a. Site Specific Response Spectra (per Geotechnical Report) obtain maximum spectral acceleration, for any period within the range from 0.2 to 5 seconds, Sa.
b. Short period spectral response parameter, SDS: Design using the greater of the following:
1) 90 percent of the maximum spectral acceleration, Sa, determined as described in the preceding paragraph.
2) 80 percent of the value of SDS determined in accordance with Chapter 11 of ASCE 7.
3) 1.004 g.
c. One-second spectral response parameter, SD1: Design using the greater of the following:
1) The maximum value of the product of the structure period, T and Sa, determined as described in the preceding paragraph.
2) 80 percent of the value of SD1 determined in accordance with Chapter 11 of ASCE 7.
3) 0.959 g.
Design Criteria
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2. Structures - General:
a. Seismic Design Category (SDC): As indicated in the following Table:
Project Structures - Risk Category and Seismic Design Information.
Table: Project Structures - Risk Category and Seismic Design Information Description: Water Treatment Facility
Area Description Risk
Category
Site
Class
SDS SD1 Seismic Design
Category(1)
All structures unless noted
otherwise
III D 1.004 0.959 D
Pedestrian Bridge IV F 1.48 1.58 F
Notes:
(1) Seismic Design Category for Delegated Design, and for seismic certification of electrical and mechanical equipment as required by ASCE 7.
b. Structure response modification coefficient, R:
1) In accordance with ASCE 7, and the requirements of the Technical Sections.
3. Structures - Tanks and vessels.
a. Includes: Tank structures, tank supports, and anchorage to structures or foundations:
b. Liquid storage structures (e.g.: basins and tanks).
1) Include impulsive and convective (“sloshing”) effects. 2) Component response modification factor - impulsive effects, Ri: In accordance with ASCE 7, Table 15.4-2.
3) Component response modification factor - convective effects, Rc = 1.0.
c. Dry material storage structures (e.g.: silos, hoppers):
1) Include effects of stored materials.
2) Component response modification factor - impulsive effects, Ri: In accordance with ASCE 7, Table 15.4-2.
4. Non-structural components - General:
a. Includes:
1) Mechanical and electrical equipment; anchorage of equipment to structures or supports; design of supports; and anchorage of supports to structures or foundations.
2) Distribution systems associated with mechanical and electrical equipment such as piping, ductwork, conduits, cable trays, raceways, bus ducts, and similar items; anchorage of such systems to supports and structures; and bracing or such systems.
b. Seismic design requirements for non-structural components are based on the Seismic Design Category (SDC) of the structure or facility where the equipment is installed.
c. Design components, component anchorage, and component connections to piping and utilities in accordance with the requirements of ASCE 7, Table 13.2-1
Design Criteria
01850-5 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01850 (CONFORMED) d. Component amplification factor (ap), response factor (Rp), and overstrength factor for anchorage to concrete (Ωo):
1) Mechanical and electrical components and systems: In accordance with ASCE 7, Table 13.6-1, unless otherwise indicated in the Technical Sections for these items.
2) Architectural components and systems: In accordance with ASCE 7, Table 13.6-1, unless otherwise indicated in the Technical Sections for these items.
e. Component importance factor, Ip:
1) In accordance with the following Table: Component Importance Factor for seismic design, Ip.
2) For items not listed in Table: Component Importance Factor for seismic design, Ip, designate importance factor in accordance with the provisions of ASCE 7, Chapter 13 and submit to Engineer for review prior to developing calculations and details related to that component.
Table: Component Importance Factor for seismic design, Ip Structure Seismic
Design Category Components Ip
All Electrical: Items and distribution system components specified in Division 16 - Electrical. 1.5
All
Process Control and Instrumentation Systems: Components and distribution systems specified in Division 17 -
Instrumentation and Controls.
1.5 All Equipment and components specified in Divisions 11 through 15, except HVAC and plumbing components listed below. 1.5 All Plumbing equipment specified in the following Sections:
15400 - Plumbing Systems 1.0
All HVAC equipment specified in the following Sections:
15732 - Air Conditioning Units 1.0
All Other equipment not listed above. 1.0
5. Non-structural components: HVAC ductwork.
a. Component importance factor, Ip: Determine in accordance with ASCE 7, Section 15.4.1.1.
b. Seismic design category:
1) See Table: Component Importance Factor for seismic design, Ip (preceding).
c. SMACNA seismic hazard level.
1) Seismic hazard level for design of heating, ventilating, and air conditioning ductwork, supports and equipment in accordance with SMACNA Seismic Restraint Manual:
a) SMACNA Seismic hazard level = A.
Design Criteria
01850-6 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/01850 (CONFORMED) E. Wind loads:
1. Design structures and non-structural components that are exposed to wind to withstand design wind loads.
a. Reduction of wind loads based on shielding effects of surrounding structures or components is not allowed.
b. Design for wind loading is not required for non-structural components and for non-building structures located inside enclosed buildings.
2. Design parameters:
a. Basic wind speed:
1) 110 miles per hour (33 feet, 3 second gust).
b. Exposure category: D.
c. Topographic factor, Kzt: 1.0.
d. Wind pressure for design of "components and cladding". 1) "Components and cladding" includes doors, windows, siding panels, skylights, parapets and similar architectural elements. 2) Minimum wind pressure for components and cladding, strength level:
a) Wall elements: Minimum 50.8 pounds per square foot, pressure or vacuum.
b) Roof elements: Minimum 48.8 pounds per square foot, pressure or vacuum.
c) For "allowable stress level" pressures, multiply strength level pressures by 0.625.
F. Rainfall loads:
1. Determine rainfall loads using rainfall intensity specified herein, and including effects of exposed surface slope, height above surface to discharge elevation, and deflection of ponded surfaces.
G. Operational loads:
1. Loads may include equipment vibration, torque, thermal effects, effects of internal contents (weight and sloshing), surge or "water hammer," and other load conditions.
2. Design for loads indicated by equipment manufacturer.
3. Design for loads indicated in the Technical Sections for equipment and appurtenances.
H. Serviceability considerations: ASCE 7-16
1. Deflection, unless otherwise indicated on the Drawings, or specified:
a. Beam deflection as fraction of span:
1) Walkways and platforms: total load = L/240; live load = L/360. 2) Equipment supports: L/450.
PART 3 EXECUTION
3.01 GENERAL
A. Design approach and criteria in accordance with:
1. Regulatory requirements, including but not limited to the building code specified in Section 01410 - Regulatory Requirements.
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2. Reference standards and project-specific design criteria listed in this Section.
3. Specific requirements for individual elements and components of the Work as specified in subsequent Technical Sections.
B. In the event of conflicts between design criteria, contact Engineer for interpretation.
C. Where Owner-Delegated Design is required by the Specifications, prepare and submit designs as specified in Section 01357 - Delegated Design Procedures.
3.02 DELEGATED DESIGN:
A. Where Delegated Design is required by the Technical Sections, prepare and submit designs as specified in Section 01357 - Delegated Design Procedures.
B. Calculations:
1. Where submittal of calculations is required:
a. Provide complete calculations, including sketches to illustrate the design concepts being evaluated, and details to fully describe proposed construction.
2. Requirements for seismic design calculations will be waived for the following:
a. Furniture and storage racks 6 feet in height or less. b. Moveable equipment.
c. Mechanical and electrical equipment and components located in structures designated as Seismic Design Category A or B. d. Mechanical and electrical equipment and components located in structures designated as Seismic Design Category C and where the component importance factor, Ip, is equal to 1.0.
3. Requirements for wind design calculations will be waived for the following:
a. Equipment and components located inside structures, and away from the effects of wind loads.
C. Shop drawings:
1. Shop drawings describing components and manufacturer's requirements for connections.
a. Include details for connections of components to structures and supports. b. Include details for anchoring bracing to structures where required.
3.03 DESIGN - ANCHORS FOR EQUIPMENT, COMPONENTS, AND BRACING A. General:
1. Engineer's approval of anchor designs is required before placement of construction that supports or provides bracing for anchored equipment and components.
a. Prepare anchor designs after Engineer's approval of the products and layout, and before placement of concrete or masonry that supports them.
2. Adjust equipment pad sizes and add additional anchor confinement reinforcing to provide required strength at anchorage points between equipment and pad, and between pad and structure.
Design Criteria
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3. Supports and bracing:
a. Design and install braces and anchors to transfer forces from equipment and components to the lateral force resisting system of the surrounding structure.
b. Anchor and brace piping, ductwork, and electrical distribution components so that lateral or vertical displacement does not result in damage to or failure of essential architectural, mechanical, or electrical equipment. 1) Provide supplementary framing where required to transfer forces. 2) Detail and locate braces and anchors to minimize differential movements between components and structure.
B. Preparation:
1. Obtain manufacturer's information:
a. Weight and dimensions of components.
b. Layout and location of anchors that connect to equipment base plates, sole plates, skids, or pads.
c. Sizes of holes for anchors that will be provided in equipment bases or support frames.
C. Analysis and design:
1. Perform and submit calculations to determine anchor designs at locations where equipment and equipment supports are connected to the supporting structure.
a. Indicate number, size, type, and material for anchors.
2. In determining forces at locations where equipment is anchored to structures, include effects of:
a. Equipment self-weight and operating weight.
b. Location of equipment center of mass.
c. Forces from equipment operation including, but not limited to:
1) Effects of internal contents including weight and sloshing. 2) Effects of thrust, surge, and water hammer where specified. 3) Equipment reactions and operating torque.
4) Equipment vibration.
5) Thermal effects from equipment and from distribution systems connected to the equipment (piping, ducts, and electrical). 6) Other load or displacement inducing conditions.
d. Forces on equipment from loads specified in this Section. 1) Include effects of wind, snow, and icing loads where applicable. 2) Design for load combinations indicated in ASCE 7, unless otherwise specified or indicated on the Drawings.
3) Seismic and wind loads: For equipment and tanks with weight that varies based on the volume of contained material, determine anchor forces to accommodate the full range of filled, partially filled, and empty conditions.
3. Determine forces and overturning moments at equipment supports and at locations where supports are anchored to structures.
a. Indicate shear force and associated axial force at each anchor.
4. Do not use friction to resist sliding resulting from seismic or wind forces. a. Resist sliding only by direct application of sliding loads to fasteners as bearing, shear, tension, or compression forces.
Design Criteria
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5. Using combined shears and axial forces at each anchor, design anchors and anchor groups for ductile failure.
a. Ductile failure: Anchor yield before failure of base material, typically concrete or masonry, at the anchor.
6. Anchor selection:
a. Provide anchors type indicated on the Drawings.
b. Where anchors are not specifically indicated on the Drawings, select in accordance with the following:
1) Anchors that resist seismic and wind forces:
a) Cast-in-place forged hex-head anchor bolt.
2) Anchors loaded in sustained tension:
a) Cast-in-place forged hex-head anchor bolt.
3) Anchors for reciprocating, vibrating, and rotating equipment:
a) Cast-in-place forged hex-head anchor bolt.
c. Do not use post-installed anchors, mechanical or adhesive, unless:
1) Post-installed anchors are indicated on the Drawings; or 2) Post-installed are approved by Engineer prior to placement of the surrounding concrete or masonry.
d. Anchor diameter:
1) Select diameter so that hole in base plate is not greater than 125 percent of the nominal diameter of the anchor, nor greater than the diameter of the anchor plus 1/4 inch.
7. Determine number, size, layout, and minimum effective embedment for anchors.
a. Layout includes anchor spacing and required distance(s) from anchor to edge(s) of supporting concrete or masonry.
b. Anchors in concrete: Design based on minimum specified 28-day compressive strength, f'c, as follows, unless otherwise indicated on the Drawings for the Work area:
1) Concrete placed for this Work: f'c = 4000 pounds per square inch. c. Anchors in masonry: Design based on minimum specified compressive strength, f'm, as follows, unless otherwise indicated on the Drawings for the Work area:
1) Concrete masonry placed for this Work: f'm = 1500 pounds per square inch.
8. Prepare drawings showing construction details of anchor designs.
9. Submit design calculations and drawings prior to placement of anchors, and of the structural elements to which they will connect.
END OF SECTION
Common Work Results for General Piping - Linear Infrastructure 02001-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02001 (CONFORMED) SECTION 02001
COMMON WORK RESULTS FOR GENERAL PIPING - LINEAR INFRASTRUCTURE PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Basic materials and methods for metallic and plastic piping systems.
1.02 REFERENCES
A. American Society of Mechanical Engineers (ASME):
1. B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 Through 24.
2. B16.47 - Large Diameter Steel Flanges: NPS 26 Through NPS 60 Metric/Inch Standard.
B. American Water Work Association (AWWA):
1. C11 - Rubber-Gasket Joints for Ductile-Iron Pressure Pipe.
2. C105 - Polyethylene Encasement for Ductile-Iron Pipe Systems.
3. C151 - Ductile-Iron Pipe, Centrifugally Cast.
4. C207 - Standard for Steel Pipe Flanges for Waterworks Services-Size 4 In.
Through 144 In.
5. C230 – Stainless-Steel Full-Encirclement Repair and Service Connection Clamps for 2 IN. Through 12 IN. Pipe.
C. ASTM International (ASTM):
1. A74 - Standard Specification for Cast Iron Soil Pipe and Fittings.
2. A193 - Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications.
3. A194 - Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both.
4. A307 - Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60,000 PSI Tensile Strength.
5. A536 - Standard Specification for Ductile Iron Castings.
6. A563 - Standard Specification for Carbon and Alloy Steel Nuts.
7. B88 - Standard Specification for Seamless Copper Water Tube.
8. D2000 - Standard Classification System for Rubber Products in Automotive Applications.
9. D2513 - Standard Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing and Fittings.
10. F37 - Standard Test Methods for Sealability of Gasket Materials.
11. F593 - Standard Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs.
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12. F594 – Standard Specification for Stainless Steel Nuts.
13. F2329 - Standard Specification for Zinc Coating, Hot-Dip, Requirements of Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners.
D. NSF International (NSF):
1. 61 – Drinking Water System Components – Health. Effects.
1.03 DEFINITIONS
A. Buried Pipes: Pipes that are buried in the soil with or without a concrete pipe encasement.
B. Exposed Pipe: Pipes that are located above ground, or located inside a structure, supported by a structure, or cast into a concrete structure.
C. Pipes Adjacent to a Wet Wall: Pipe centerline within 10 inches of the wet wall.
D. Underground PIPES: Buried pipes - see A. above.
E. Underwater Pipes: Pipes below the top of walls in basins or tanks containing water.
F. Wet Wall: A wall with water on at least 1 side.
PART 2 PRODUCTS
2.01 GENERAL
A. Materials as specified in Section 01601 - Product Requirements including special requirements for materials in contact with drinking water.
2.02 LINK TYPE SEALS
A. Characteristics:
1. Modular mechanical type, consisting of interlocking neoprene or synthetic rubber links shaped to continuously fill the annular space between the pipe and wall opening.
2. Links to form a continuous rubber belt around the pipe.
3. Provide a nylon polymer pressure plate with Type 316 stainless steel hardware. Isolate pressure plate from contact with wall sleeve.
4. Hardware to be Type 316 stainless steel.
a. Provide anti-galling lubricant for threads.
B. One of the following or equal:
1. Link-Seal.
2. Pipe Linx.
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2.03 FLANGE BOLTS AND NUTS
A. General:
1. Washer:
a. Provide a washer for each nut.
b. Washer shall be of the same material as the nut.
2. Nuts: Heavy hex-head.
3. Cut and finish flange bolts to project a maximum of 1/4-inch beyond outside face of nut after assembly.
4. Tap holes for cap screws or stud bolts when used.
5. Lubricant for stainless steel bolts and nuts:
a. Chloride-free.
b. Manufacturers: One of the following or equal:
1) Huskey FG-1800 Anti-Seize.
2) Weicon Anti-Seize High-Tech.
B. For ductile iron pipe:
1. On exposed pipes with pressures equal to or less than 150 pounds per square inch gauge (psig):
a. Bolts: ASTM A307, Grade B.
b. Nuts: ASTM A563, Grade A.
c. Bolts and Nuts: Hot-dip galvanized in accordance with ASTM F2329.
2. On exposed pipes with pressures greater than 150 psig:
a. Bolts: ASTM A193, Grade B.
b. Nuts: ASTM A194, Grade 2H.
c. Bolts and nuts: Hot-dip galvanized in accordance with ASTM F2329.
3. On underwater pipes and pipes adjacent to wet walls:
a. Bolts: ASTM A193, Grade B8M.
b. Nuts: ASTM A194, Grade 8M.
4. On buried pipes:
a. Bolts: ASTM A193, Grade B8M.
b. Nuts: ASTM A194, Grade 8M for nuts.
2.04 MECHANICAL JOINTS BOLTS AND NUTS
A. Bolts including T-Bolts:
1. High strength low alloy steel in accordance with AWWA C111. a. Fluoropolymer coated.
2. Type 304 stainless steel in accordance with ASTM F593.
3. Type 316 stainless steel in accordance with ASTM F593.
B. Heavy Hex Nuts:
1. High strength low alloy steel in accordance with AWWA C111. a. Fluoropolymer coated.
2. Type 304 stainless steel in accordance with ASTM F594.
3. Type 316 stainless steel in accordance with ASTM F594.
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2.05 GASKETS
A. General.
1. Gaskets shall be suitable for the specific fluids, pressure, and temperature conditions.
2. Capable of being applied on surface of piping with cavities to provide for an improved seal with the internal piping pressure.
B. Gaskets for flanged joints in ductile iron and steel piping for sewage service:
1. Suitable for pressures equal and less than 150 pounds per square inch gauge, temperatures equal and less than 160 degrees Fahrenheit, and raw sewage service.
2. Gasket material:
a. SBR or neoprene elastomer with minimum Shore A hardness value of 70. b. Reinforcement: Cloth or synthetic fiber.
c. Thickness: Minimum 3/32-inch thick for less than 10-inch pipe; minimum 1/8 inch thick for 10-inch and larger pipe.
3. Manufacturers: One of the following or equal:
a. Pipe less than 48 inches in diameter:
1) Garlock, Style 7797.
2) John Crane, similar product.
b. Pipe 48 inches in diameter and larger:
1) Garlock, Style 3760.
2) John Crane, similar product.
C. Gaskets for flanged joints in ductile iron or steel water piping:
1. Suitable for hot or cold water, pressures equal to and less than 150 pounds per square inch gauge, and temperatures equal to and less than 160 degrees Fahrenheit.
2. Material:
a. SBR or neoprene elastomer, compressed, with non-asbestos fiber reinforcement.
3. Manufacturers: One of the following or equal:
a. Garlock, Bluegard 3300.
b. John Crane, similar product.
D. Gaskets for mechanical joints in ductile iron:
1. Certified to NSF-61 when used for potable water service.
2. SBR or NBR.
E. Gaskets for push-on rubber gasket joints in ductile iron:
1. Certified to NSF-61 when used for potable water service.
2. SBR or NBR.
2.06 REPAIR BANDS
A. Design requirements:
1. In accordance with AWWA C230.
Common Work Results for General Piping - Linear Infrastructure 02001-5 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02001 (CONFORMED) B. Materials:
1. Shells: Type 304 stainless steel.
2. Lugs: Removable epoxy coated ductile iron in accordance with ASTM A536.
3. Bolts and nuts: 304 Stainless Steel with fluorpolymer coated nuts.
4. Gaskets: Compounded for water and sewer service.
C. Manufacturers: One of the following or equal:
1. Romac Industries, Inc.
2. Smith-Blair Inc.
PART 3 EXECUTION
3.01 INSTALLATION
A. General:
1. Piping drawings:
a. Except in details, piping is indicated diagrammatically. Not every offset and fitting, or structural difficulty that may be encountered has been indicated on the Drawings. Sizes and locations are indicated on the Drawings.
b. Perform minor modifications to piping alignment where necessary to avoid structural, mechanical, or other type of obstructions that cannot be removed or changed.
1) Modifications are intended to be of minor scope, not involving a change to the design concept or a change to the Contract Price or Contract Times.
2. Piping alternatives:
a. Provide piping as specified in this Section, unless indicated on the Drawings or specified otherwise.
b. Alternative pipe ratings:
1) Piping with greater pressure rating than specified may be substituted in lieu of specified piping without changes to the Contract Price. 2) Piping of different material may not be substituted in lieu of specified piping.
c. Valves in piping sections: Capable of withstanding specified test pressures for piping sections and fabricated with ends to fit piping. d. Flanged joints: where 1 of the joining flanges is raised face type, provide a matching raised face type flange for the other joining flange.
3. Unless otherwise indicated on the Drawings, piping at pipe joints, fittings, couplings, and equipment shall be installed without rotation, angular deflection, vertical offset, or horizontal offset.
B. Wall and slab penetrations:
1. Provide sleeves for piping penetrations through aboveground masonry and concrete walls, floors, ceilings, roofs, unless specified or otherwise indicated on the Drawings.
2. For piping 1 inch in nominal diameter and larger, provide sleeves with minimum inside diameters of 1 inch plus outside diameter of piping. For piping
Common Work Results for General Piping - Linear Infrastructure 02001-6 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02001 (CONFORMED) smaller than 1 inch in nominal diameter, provide sleeve of minimum twice the outside diameter of piping.
a. Arrange sleeves and adjacent joints so piping can be pulled out of sleeves and replaced without disturbing the structure.
b. Cut ends of sleeves flush with surfaces of concrete, masonry, or plaster. c. Conceal ends of sleeves with escutcheons where piping runs through floors, walls, or ceilings of finished spaces within buildings. d. Seal spaces between pipes and sleeves with link-type seals when not otherwise specified or indicated on the Drawings.
3. Provide flexibility in piping connecting to structures to accommodate movement due to soil settlement and earthquakes. Provide flexibility using details indicated on the Drawings.
4. Core drilled openings:
a. Do not damage or cut existing reinforcing bars, electrical conduits, or other items embedded in the existing concrete without acceptance by Engineer.
b. Determine location of reinforcing bars or other obstructions with a non-destructive indicator device.
c. Remove dust and debris from hole using compressed air.
C. Exposed piping:
1. Install exposed piping in straight runs parallel to the axes of structures, unless otherwise indicated on the Drawings:
a. Install piping runs plumb and level, unless otherwise indicated on the Drawings.
1) Slope plumbing drain piping with a minimum of 1/4-inch per foot downward in the direction of flow.
2. Install exposed piping after installing equipment and after piping and fitting locations have been determined.
3. Support piping: As specified in Sections 15061 - Pipe Supports, 15062 - Preformed Channel Pipe Support System, and 15063 - Non-Metallic Pipe Support System:
a. Do not transfer pipe loads and strain to equipment.
4. In addition to the joints indicated on the Drawings, provide unions, flexible couplings, flanged joints, flanged coupling adapters, and other types of joints or means which are compatible with and suitable for the piping system, and necessary to allow ready assembly and disassembly of the piping.
5. Assemble piping without distortion or stresses caused by misalignment:
a. Match and properly orient flanges, unions, flexible couplings, and other connections.
b. Do not subject piping to bending or other undue stresses when fitting piping.
c. Do not correct defective orientation or alignment by distorting flanged joints or subjecting flange bolts to bending or other undue stresses. d. Flange bolts, union halves, flexible connectors, and other connection elements shall slip freely into place.
e. Alter piping assembly to fit, when proper fit is not obtained. f. Install eccentric reducers or increasers with the top horizontal for pump suction piping.
Common Work Results for General Piping - Linear Infrastructure 02001-7 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02001 (CONFORMED) D. Buried piping:
1. Bury piping with minimum 3-foot cover without air traps, unless otherwise indicated on the Drawings.
2. Where 2 similar services run parallel to each other, piping for such services may be laid in the same trench.
a. Lay piping with sufficient room for assembly and disassembly of joints, for thrust blocks, for other structures, and to meet separation requirements of public health authorities having jurisdiction.
3. Laying piping:
a. Lay piping in finished trenches free from water or debris. Begin at the lowest point with bell ends up slope.
b. Place piping with top or bottom markings with markings in proper position. c. Lay piping on an unyielding foundation with uniform bearing under the full length of barrels.
d. Where joints require external grouting, banding, or pointing, provide space under and immediately in front of the bell end of each section laid with sufficient shape and size for grouting, banding, or pointing of joints. e. At the end of each day's construction, plug open ends of piping temporarily to prevent entrance of debris or animals.
E. Venting piping under pressure:
1. Lay piping under pressure flat or at a continuous slope without air traps, unless otherwise indicated on the Drawings.
2. Install plug valves as air bleeder cocks at high points in piping. a. Provide 1-inch plug valves for water lines, and 2-inch plug valves for sewage and sludge lines, unless otherwise indicated on the Drawings.
3. Provide additional pipe taps with plug cocks and riser pipes along piping as required for venting during initial filling, disinfecting, and sampling.
4. Before piping is placed into service, close plug valves and install plugs. Protect plugs and plug valves from corrosion in as specified in Section 09960 - High-Performance Coatings.
F. Restraining buried piping:
1. Restrain piping at valves and at fittings where piping changes direction, changes sizes, and at ends:
a. When piping is underground, use concrete thrust blocks, mechanical restraints, or push-on restraints.
b. Determine thrust forces by multiplying the nominal cross-sectional area of the piping by design test pressure of the piping.
2. Provide restraints with ample size to withstand thrust forces resulting from test pressures:
a. During testing, provide suitable temporary restraints where piping does not require permanent restraints.
3. Place concrete thrust blocks against undisturbed soil.
4. Place concrete so piping joints, fittings, and other appurtenances are accessible for assembly and disassembly.
5. Provide underground mechanical restraints where specified in the Piping Schedule.
Common Work Results for General Piping - Linear Infrastructure 02001-8 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02001 (CONFORMED) G. Restraining above ground piping:
1. Restrain piping at valves and at fittings where piping changes direction, changes sizes, and at ends:
a. When piping is aboveground or underwater, use mechanical or structural restraints.
b. Determine thrust forces by multiplying the nominal cross-sectional area of the piping by design test pressure of the piping.
2. Provide restraints with ample size to withstand thrust forces resulting from test pressures:
a. During testing, provide suitable temporary restraints where piping does not require permanent restraints.
H. Connections to existing piping:
1. Expose existing piping to which connections are to be made with sufficient time to permit, where necessary, field adjustments in line, grade, or fittings:
a. Protect domestic water/potable water supplies from contamination:
1) Make connections between domestic water supply and other water systems in accordance with requirements of public health authorities. 2) Provide devices approved by Owner of domestic water supply system to prevent flow from other sources into the domestic supply system.
2. Make connections to existing piping and valves after sections of new piping to be connected have been tested and found satisfactory.
3. Provide sleeves, flanges, nipples, couplings, adapters, and other fittings needed to install or attach new fittings to existing piping and to make connections to existing piping.
4. For flanged connections, provide stainless steel bolts with isolation bushings and washers, and full-face flange gaskets.
I. Connections between ferrous and nonferrous metals:
1. Connect ferrous and nonferrous metal piping, tubing, and fittings with dielectric couplings especially designed for the prevention of chemical reactions between dissimilar metals.
2. Nonferrous metals include aluminum, copper, and copper alloys.
J. Flanged connections between dissimilar metals such as ductile iron pipe and steel pipe:
1. Provide stainless steel bolts with isolation bushings and washers, and full-face flange gaskets.
3.02 CLEANING
A. Piping cleaning:
1. Upon completion of installation, clean piping interior of foreign matter and debris.
2. Perform special cleaning when required by the Contract Documents.
B. Conduct pressure and leak test, as specified.
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3.03 PIPE SCHEDULE
A. As specified in Attachment A - Pipe Schedule.
END OF SECTION
Common Work Results for General Piping - Linear Infrastructure 02001-Attachment A 8660F10 July 12, 2023 - CONFORMED
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ATTACHMENT A - PIPE SCHEDULE
ATTACHMENT A. PIPE SCHEDULE
PIPING SCHEDULE
PROCESS
ABBREV.
SERVICE EXPOSED, BURIED,
ETC
NOMINAL
DIAMETER
(INCHES)
MATERIAL WORKING
PRESSURE
PIPE SPEC. SECTION JOINTS/
FITTINGS(3)
TEST PRESSURE/
METHOD
(SEE NOTES FOR
SPECIAL CONDITIONS)
LINING COATING SERVICE
CONDITIONS
COMMENTS
RW Recycled Water Burried 16-18 PVC C900 DR-18 02706 Push on / Mech Rest. 225 psi / HH None None Tranmission Main, Purple FinishRW Recycled Water Burried 16-18 FPVC C900 DR-18 02706 Fusion Welded 225 psi / HH None None Tranmission Main, Purple Finish RW Recycled Water Burried 4-12 PVC C905 DR-18 02706 Push on / Mech Rest. 225 psi / HH None None Tranmission Main, Purple Finish RW Recycled Water Burried 4-12 FPVC C905 DR-18 02706 Fusion Welded 225 psi / HH None None Tranmission Main, Purple FinishRW Recycled Water Burried 2-8 PVC SCH 80 02710 SW 225 psi / HH None None Property
Connection Purple
Finish
RW Recycled Water Burried 4-12 DIP Class 350 02693 Restrained 225 psi / HH CM PEE Tranmission Main, Purple Finish RW Recycled Water Burried 16-18 DIP Class 250 02693 Restrained 225 psi / HH CM PEE Tranmission Main, Purple Finish RW Recycled Water Exposed 16-18 DIP Class 250 02693 FL 225 psi / HH CM EPP Pump Station, Purple Finish RW Sanitary Sewer Burried 21 PVC C900 DR 21 02705 Push on GR / 15 feet None None Sanitary Sewer, Green Finish
GR GRAVITY METHOD HH HIGH HEAD METHODLH LOW HEAD METHODSC SPECIAL CASE
2. ABBREVIATIONS TO DESIGNATE PIPING INCLUDE THE FOLLOWING:
SCRD SCREWED-ONSST STAINLESS STEELSW SOLVENT WELDEDPO PUSH-ON JOINTRPO RESTRAINED PUSH-ONPTW POLYETHYLENE TAPE WRAPPVC POLYVINYL CHLORIDESCH SCHEDULE, FOLLOWED BY THE DESIGNATIONNPS NOMINAL PIPE SIZE, FOLLOWED BY THE NUMBER IN INCHESPSI POUNDS PER SQUARE INCH PSIG POUNDS PER SQUARE INCH GAUGEPE POLYETHYLENEPEE POLYETHYLENE ENCASEMENTMJ MECHANICAL JOINTB&SP BELL AND SPIGOT CCP BAR-WRAPPED AWWA 303 CONCRETE CYLINDER PIPECI CAST IRONCISP CAST IRON SOIL PIPECL CLASS, FOLLOWED BY THE DESIGNATIONCM CEMENT MORTARCTP COAL TAR PITCHDIP DUCTILE IRON PIPINGEPP EPOXY POLYURETHANE COATING AND/OR LININGFL FLANGEGA GAUGE, PRECEDED BY THE DESIGNATIONGE GROOVED END JOINTGSP GALVANIZED STEEL PIPE 8660F10
July 12, 2023 - CONFORMED
Common Work Results for General PipingAttachment A-1pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02001 Attachment (CONFORMED)
ATTACHMENT A. PIPE SCHEDULE
PIPING SCHEDULE
PROCESS
ABBREV.
SERVICE EXPOSED, BURIED,
ETC
NOMINAL
DIAMETER
(INCHES)
MATERIAL WORKING
PRESSURE
PIPE SPEC. SECTION JOINTS/
FITTINGS(3)
TEST PRESSURE/
METHOD
(SEE NOTES FOR
SPECIAL CONDITIONS)
LINING COATING SERVICE
CONDITIONS
COMMENTS
NOTE 1. RESTRAINED LENGTHS FOR RESPECTIVE PIPE MATERIALS AND PRESSURES ARE TO BE DESIGNED BY THE PIPING MANUFACTURER PER THE SPECIFICATIONS.NOTE 2. ALL PIPING WITHIN ZONE 3 SHALL BE OF THE SAME PIPE MATERIAL, EXCEPT AT ISOLATION VALVES.NOTE 3. RESTRAINED JOINTS PER PIPELINE SPECIFICATIONS.NOTE 4. WORKING PRESSURE AND TEST PRESSURE SHALL BE THE SAME AS ADJACENT RAW WATER PIPELINE.
WLD WELD
Common Work Results 8660F10 for General PipingAttachment A-2pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02001 Attachment (CONFORMED) July 12, 2023 - CONFORMED
Pipe Identification - Linear Infrastructure
02003-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02003 (CONFORMED) SECTION 02003
PIPE IDENTIFICATION - LINEAR INFRASTRUCTURE
PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Pipe identification including the following:
1. Pipe identification markers, flow direction arrows, tags, and bands.
2. Underground warning tape.
3. Tracer wire.
4. Witness markers.
1.02 REFERENCES
A. American Society of Mechanical Engineers (ASME):
1. A13.1 - Scheme for the Identification of Piping Systems.
1.03 SUBMITTALS
A. Submit as specified in Section 01330 - Submittal Procedures.
B. Submit following:
1. Product data.
2. Samples.
3. Manufacturer's installation instructions.
4. Submit following as specified in Section 01770 - Closeout Procedures:
a. Operation and Maintenance Data.
b. Warranty.
PART 2 PRODUCTS
2.01 EXPOSED AND IN-CHASE PIPE IDENTIFICATION
A. For piping with outer diameter greater than or equal to 3/4-inch, provide lettered pipe markers and flow direction arrows:
1. General requirements:
a. Pipe markers shall include the following, minimum:
1) Printed text identifying the pipe fluid.
a) The text shall be all capital letters matching the text listed in the "Service" column of the Piping Schedule for the corresponding piping system.
2) An arrow identifying the direction of fluid flow.
a) The arrow can either be integral to the text marker or provided separately. If provided separately, the arrow must be placed immediately adjacent to each text marker, with the arrow aligned
Pipe Identification - Linear Infrastructure
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02003 (CONFORMED) with the text such that the text and arrow are both visible from the same viewpoint.
b) The arrow color shall match the text color, and the arrow background color shall match the text background color. b. Suitable for outdoor application from -40 degrees to 180 degrees Fahrenheit; in accordance with ASME A13.1 requirements. c. Lettering:
Outside Pipe Diameter Including Covering Lettering Height Less than 0.75 inches N/A
0.75 to 1.5 inches 1/2-inch
1.5 inches to 2 inches 3/4-inch
2.5 inches to 6 inches 1-1/4 inches
8 inches to 10 inches 2-1/2 inches
Over 10 inches 3-1/2 inches
d. Marker colors:
Marker Color
System ID(1)
Fluid service Text/arrow
color
Background
color
1 Flammable and oxidizing fluids Black Yellow
2 Potable, cooling, boiler feed, and
other waters
White Green
3 Compressed air White Blue
4 Fire quenching fluids White Red
5 Toxic and corrosive fluids Black Orange
6 Combustible fluids White Brown
7 Defined by User White Purple
8 Defined by User Black White
9 Defined by User White Gray
10 Defined by User White Black
Notes: (1) See Piping Schedule.
2. Self-adhesive type markers:
a. Manufacturers: One of the following or equal:
1) Seton, (of Brady Corporation), Opti Code Pipe Markers. 2) Marking Services, Inc.
b. Materials:
1) Self-adhesive vinyl.
3. Snap-on markers:
a. Manufacturers: One of following or equal:
1) Brady Snap-On.
2) Seton (of Brady Corporation) Setmark.
Pipe Identification - Linear Infrastructure
02003-3 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02003 (CONFORMED) B. For piping with outer diameter less than 3/4-inch, provide identification tags and flow direction arrows:
1. Manufacturer: One of the following or equal:
a. Seton (of Brady Corporation).
2. Tag and chain materials:
a. Copper piping: Brass.
b. Ferrous piping: Type 316 stainless steel.
c. Plastic piping: PVC.
3. Flow direction arrow colors shall adhere to the same requirements as for piping with outer diameter greater than or equal to 3/4 -inch, as specified in this Section.
C. Pipe bands:
1. When bands are required by the Piping Schedule for a specific piping system, provide solid-colored 4-inch wide bands.
a. Color as specified in the Piping Schedule.
2. Self-adhesive type.
3. Suitable for outdoor application from -40 degrees to 180 degrees Fahrenheit.
2.02 BURIED PIPELINE IDENTIFICATION
A. Underground warning tape:
1. Manufacturer: One of the following or equal:
a. Seton (of Brady Corporation).
b. T. Christy Enterprises, Inc.
2. Material:
a. Polyethylene tape for prolonged underground use.
b. Minimum tape thickness: 4 mils.
c. Overall tape width: 4 inches.
d. Message: “CAUTION” with the name of the service followed by “LINE BURIED BELOW.” in black lettering on colored background in accordance with approved APWA colors.
Service Color
Potable water Blue
Reclaimed water, irrigation, and slurry lines Purple
Sewers and drain lines Green
Gas, oil, steam, petroleum, chemicals, or other
service
Yellow
e. Aluminum backing or solid aluminum core.
B. Tracer wire:
1. Manufacturers: One of the following or equal:
a. Kris-Tech Wire.
b. Aegion Corrpro.
2. Materials: One of the following or equal:
a. Solid copper conductor
b. Thickness minimum: 10 gauge.
Pipe Identification - Linear Infrastructure
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02003 (CONFORMED) c. Insulation:
1) Match insulation color to the color of the pipe being installed. 2) UF type, direct bury.
3) 30 mil HMWPE.
3. Splicing kit:
a. Manufacturers: One of the following or equal:
1) 3M, Model 82 A1N.
4. Station box:
a. Lid and collar materials: Cast iron.
b. Lid type: Locking.
c. Able to withstand heavy traffic loading.
d. Manufacturers: One of the following or equal:
1) CP Test & Valve Products, Inc., Glenn Test Station.
2) Farwest Corrosion Control.
C. Witness markers:
1. Manufacturers: One of the following or equal:
a. Carsonite Composites, Utility Marker.
2. Materials:
a. Glass fiber and resin reinforced thermosetting composite material. b. UV resistant.
3. Constructed as a single piece.
4. Pointed at the bottom end.
5. Information to be included on the marker:
a. “Caution” (type of service) “Pipeline”.
b. Phone number for Underground Service Alert.
c. Phone number for Owner in case of emergency.
d. Station number.
e. Offset:
1) Only provide offset if marker is not directly over the pipe. f. Name of appurtenance or fitting (e.g. 45, BO, ARV, etc.) PART 3 EXECUTION
3.01 EXAMINATION
A. Verify satisfactory conditions of substrate for applying identification.
B. Verify that conditions are satisfactory for installation and application of products as specified in Section - Product Requirements.
3.02 PREPARATION
A. Prepare and coat piping with the coating systems defined in the Piping Schedule.
B. Prepare surface in accordance with identification product manufacturer's instructions.
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3.03 EXPOSED AND IN-CHASE PIPING IDENTIFICATION
A. Identify exposed and in-chase piping with flow direction arrows and lettering (for piping with outer diameter greater than or equal to 3/4-inch) or tags (for piping with outer diameter less than 3/4-inch).
B. Provide lettering (or tags for pipes with outer diameter less than 3/4-inch) and flow direction arrows near equipment served, adjacent to valves, both sides of walls and floors where pipe passes through, at each branch or tee, and at intervals of not more than 50 feet in straight runs of pipe.
1. Label all chemical tank fill pipelines at locations that are visible from chemical fill stations.
2. Place markers on piping so they are visible from operator's position in walkway or working platform near piping. Locate markers along horizontal centerline of pipe, unless better visibility is achieved elsewhere.
3. Do not apply markers, arrows, or tags to piping that is regularly submerged.
C. Where scheduled in the Piping Schedule, space solid-color bands along piping at 10-foot intervals.
1. Do not apply bands to piping that is regularly submerged.
3.04 BURIED PIPING IDENTIFICATION
A. Underground warning tape:
1. Non-detectable warning tape:
a. Place continuous run of warning tape in pipe trench, 12 inches above the pipe.
2. Detectable warning tape:
a. Place continuous run of warning tape in pipe trench, 12 inches above the pipe or a greater height if necessary to limit the tape bury depth to 36 inches. Do not bury detectable warning tape deeper than 36 inches.
B. Tracer wire:
1. Install on all non-metallic pipe.
2. Install an electrically continuous run of tracer wire along the entire length of the pipe with wire terminations in valve boxes, vaults, or structures.
3. Install tracer wire on top of the pipe and secure to pipe with tape a minimum of every 10 feet.
4. Unless approved by the Engineer, splicing sections of wire together is not permitted.
C. Witness markers:
1. Install over pipe in unpaved open-space areas at intervals not greater than 200 feet.
2. Place markers at appurtenances located in unpaved areas.
3. Embed markers at least 18 inches into the soil.
END OF SECTION
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02005 (CONFORMED) SECTION 02005
PIPING SPECIALTIES - LINEAR INFRASTRUCTURE
PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Piping specialties including:
1. Transition fittings.
2. Pipe saddles.
3. Tapping sleeves.
1.02 REFERENCES
A. American Society of Mechanical Engineers (ASME):
1. B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24.
B. American Water Works Association (AWWA):
1. C110 - Standard for Ductile-Iron and Gray-Iron Fittings.
2. C151 - Standard for Ductile-Iron Pipe, Centrifugally Cast.
C. ASTM International (ASTM):
1. A148 - Standard Specification for Steel Castings, High-Strength, for Structural Purposes.
2. A193 - Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications.
3. A194 – Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both.
4. A536 - Standard Specification for Ductile Iron Castings.
D. NSF International (NSF):
1. 61 - Drinking Water System Components - Health Effects, Includes Errata.
2. 372 - Drinking Water System Components - Lead Content.
1.03 SUBMITTALS
A. Submit as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. For each piping product in this Section as applicable:
a. Design features.
b. Load capacities.
c. Material designations by UNS alloy number or ASTM Specification and Grade.
d. Data needed to verify compliance with the Specifications.
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f. Clearly mark submittal information to show specific items, materials, and accessories or options being furnished.
C. Calculations:
1. Provide calculations in accordance with NSF 372 for materials in contact with drinking water.
D. Manufacturer’s Certificate of Installation and Functionality Compliance as specified in Section 01756 - Commissioning:
1. Provide as specified in this Section.
1.04 WARRANTY
A. Provide warranty as specified in Section 01783 - Warranties and Bonds.
PART 2 PRODUCTS
2.01 GENERAL
A. As specified in Section 01601 - Product Requirements.
B. Materials in contact with drinking waters: In accordance with NSF 61 and NSF 372.
2.02 TRANSITION FITTINGS
A. Manufacturers: One of the following or equal:
1. Spears.
B. Materials:
1. Slip socket: Schedule 80 PVC.
2. Collar: Type 316 stainless steel.
3. Threaded insert: Type 316 stainless steel.
2.03 PIPE SADDLES
A. For ductile iron pipe:
1. Double strap brass type.
2. Manufacturers: One of the following or equal:
a. A.Y. McDonald, Style 3825.
b. The Ford Meter Box Company, Style 202B.
c. Mueller Company, Style BR2B.
3. Materials:
a. Pipe saddle body, straps, and nuts: Brass or silicon bronze. b. Gaskets: Rubber.
B. For PVC C900 or C905 pipe:
1. Manufacturers: One of the following or equal:
a. Smith-Blair, Inc., Style 317.
b. Romac Industries, Inc., Style 202S.
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2. Materials:
a. Pipe saddles: Ductile iron with fusion bonded epoxy finish. b. Straps, bolts, and nuts: Type 304 stainless steel with Teflon™ coating on nuts.
c. Gaskets: Rubber.
2.04 TAPPING SLEEVES
A. Manufacturers: One of the following or equal:
1. Smith-Blair, Inc., Style 622.
2. Romac Industries, Inc., Style FTS 420.
B. Materials:
1. Tapping sleeves: Steel construction.
2. Bolts and nuts: Type 304 stainless steel.
3. Nuts: Teflon™ coated.
4. Gaskets: Rubber.
5. Size of tapped boss: As indicated on the Drawings.
2.05 SHIPPING
A. As specified in Section 01601 - Product Requirements.
PART 3 EXECUTION
3.01 GENERAL
A. As specified in Section 01601 - Product Requirements.
B. Drawings supersede conflicts with this Section.
C. Bellows type expansion joints and vibration control joints:
1. Protect joints against damage during pressure test.
3.02 INSTALLATION
A. Transition couplings:
1. Application:
a. Use transition couplings with function and design similar to flexible couplings and flanged coupling adapters for connecting piping having different outside diameters.
2. Install transition-coupling products specifically designed and manufactured for that application.
B. Pipe saddles:
1. Coat threads on bolts with anti-gall coating prior to installation.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02005 (CONFORMED) C. Tapping sleeves:
1. Verify existing pipe material and outer diameter prior to ordering materials.
2. Coat threads on bolts with anti-gall coating prior to installation.
D. Surge cushions:
1. Provide surge cushions to dampen shock pressure surges due to power loss, fast closing valves, or other events that produce water hammer.
2. Install gate valve between surge cushion and piping.
E. Spray nozzles:
1. Install spray nozzles so that elevation of the nozzles is 18 inches above the water surface.
3.03 COMMISSIONING
A. As specified in Section 01756 - Commissioning and this Section.
B. Manufacturer services:
1. Required only for:
a. Transition couplings.
b. Tapping sleeves for large diameter pipe.
2. Provide Manufacturer’s Certificate of Installation and Functionality Compliance.
3. Provide Manufacturer’s Representative Onsite:
a. Installation: 2 trip/1 day each:
1) Installation consultation and advice.
2) Installation inspection.
C. Field testing:
1. As specified in Section 02001 - Common Work Results for General Piping.
END OF SECTION
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02007 (CONFORMED) SECTION 02007
PIPE COUPLINGS - LINEAR INFRASTRUCTURE
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Pipe couplings for ductile iron piping.
2. Pipe couplings for carbon steel piping.
3. Pipe couplings for stainless steel piping.
1.02 REFERENCES
A. American National Standards Institute (ANSI).
B. American Society of Mechanical Engineers (ASME):
1. B31.1 - Power Piping.
2. B31.9 - Building Services Piping.
C. American Water Works Association (AWWA):
1. C111 - Standard for Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings.
2. C207 - Standard for Steel Pipe Flanges for Waterworks Service - Sizes 4 In.
Through 144 In.
3. C213 - Standard for Fusion-Bonded Epoxy Coatings and Linings for Steel Water Pipe and Fittings.
4. C606 - Standard for Grooved and Shouldered Joints.
D. ASTM International (ASTM):
1. A36 - Standard Specification for Carbon Structural Steel.
2. A53 - Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless.
3. A193 - Standard Specification for Alloy Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special Purpose Applications.
4. A351 - Standard Specification for Castings, Austenitic, for Pressure-Containing Parts.
5. A449 - Standard Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/9 ksi Minimum Tensile Strength, General Use.
6. A536 - Standard Specification for Ductile Iron Castings.
7. A563 - Standard Specification for Carbon and Alloy Steel Nuts.
8. A576 - Standard Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality.
9. C425 - Standard Specification for Compression Joints for Vitrified Clay Pipe and Fittings.
10. C443 - Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets.
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11. C564 - Standard Specification for Rubber Gasket for Cast Iron Pipe and Fittings.
12. C1173 - Standard Specification for Flexible Transition Couplings for Underground Piping Systems.
13. D1869 - Standard Specification for Rubber Rings for Asbestos-Cement Pipe.
14. D2000 - Standard Classification System for Rubber Products in Automotive Applications.
15. D5926 - Standard Specification for Poly (Vinyl Chloride) (PVC) Gaskets for Drain, Waste, and Vent (DWV), Sewer, Sanitary, and Storm Plumbing Systems.
16. F593 - Standard Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs.
17. F594 - Standard Specification for Stainless Steel Nuts.
E. NSF International (NSF):
1. 61 - Drinking Water System Components - Health Effects.
2. 372 - Drinking Water System Components - Lead Content.
1.03 SUBMITTALS
A. Submit as specified in Section 01330 - Submittal Procedures.
B. Product data:
1. For each product in this Section as applicable:
a. Design features.
b. Load capacities.
c. Material designations by UNS alloy number or ASTM Specification and Grade.
d. Data needed to verify compliance with the Specifications. e. Catalog data.
f. Clearly mark submittal information to show specific items, materials, and accessories or options being furnished.
C. Calculations:
1. Provide calculations in accordance with NSF 372 for materials in contact with drinking water.
1.04 WARRANTY
A. Provide warranty as specified in Section 01783 - Warranties and Bonds.
PART 2 PRODUCTS
2.01 GENERAL
A. As specified in Section 01601 - Product Requirements:
1. Materials in contact with drinking waters: In accordance with NSF 61 and NSF 372.
B. Known acceptable manufacturers are listed by specific products.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02007 (CONFORMED) C. Provide references as specified in this Section by specific product.
D. Manufacturer’s representatives requirements as specified in Section 01756 - Commissioning and this Section by specific product.
E. Gaskets for flexible couplings and flanged coupling adapters:
1. Provide gasket materials for piping applications as follows:
a. Low-pressure and high-pressure air, steam, hot water: EPDM. b. All other piping applications: Neoprene rubber or Buna-N.
F. Exterior coatings for underground and submerged applications:
1. Manufacturers: One of the following or equal:
a. Tapecoat Co., Inc., T.C. Mastic.
b. Kop-Coat Co., Inc., Bitumastic Number 50.
2. Thickness: Minimum 0.040 inch.
2.02 PIPE COUPLINGS FOR DUCTILE IRON PIPING
A. Dismantling joints:
1. Manufacturers: One of the following or equal:
a. Romac Ind., Inc., Style DJ400.
b. Smith-Blair, Inc., Series 975.
2. Materials:
a. Flanged spool: AWWA C207 steel pipe:
1) ASTM A53 for sizes 3 inches to 12 inches.
2) ASTM A36 for sizes 14 inches to 72 inches.
b. End ring and body:
1) For sizes 3 inches to 12 inches, ductile iron in accordance with ASTM A536.
2) For sizes 14 inches to 72 inches, steel in accordance with ASTM A36 or A53.
c. Follower ring: Ductile iron in accordance with ASTM A536. d. Bolts and hex nuts:
1) Aboveground: High strength, low alloy steel in accordance with AWWA C111.
2) Buried and underwater: Type 316 stainless steel bolts in accordance with ASTM F593.
e. Tie rods: High tensile steel in accordance with ASTM A193 Grade B7.
3. Flange design: Class D steel ring flange in accordance with AWWA C207, compatible with ANSI Class 125 and 150 bolt circles.
4. Coating and lining: Manufacturer’s standard fusion bonded epoxy, NSF 61 certified.
B. Flanged coupling adapters: 12-inch size and smaller:
1. Manufacturers: One of the following or equal:
a. Dresser, Inc., Style 227.
b. Romac Ind., Inc., Style FCA501.
c. Smith-Blair, Inc., Series 912.
2. Materials:
a. Flanged body: Ductile iron in accordance with ASTM A536. b. Follower ring: Ductile iron in accordance with ASTM A536.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02007 (CONFORMED) c. Bolts and hex nuts:
1) Aboveground: High strength, low alloy steel in accordance with AWWA C111.
2) Buried and underwater: Type 316 stainless steel bolts in accordance with ASTM F593.
3. Flange design: Class D steel ring flange in accordance with AWWA C207 compatible with ANSI Class 125 and 150 bolt circles.
4. Coating and lining: Manufacturer’s standard fusion bonded epoxy, NSF 61 certified.
C. Flanged coupling adapters: Greater than 12-inch size:
1. Manufacturers: One of the following or equal:
a. Dresser, Inc., Style 128-W.
b. Romac Ind., Inc., Style FC400.
c. Smith-Blair, Inc., Series 913.
2. Materials:
a. Flange and flanged body: Ductile iron or low carbon steel having a minimum yield strength of 30,000 pounds per square inch. b. Follower ring: Low carbon steel having a minimum yield strength of 30,000 pounds per square inch.
c. Bolts and hex nuts:
1) Aboveground: High strength, low alloy steel in accordance with AWWA C111.
2) Buried and underwater: Type 316 stainless steel bolts in accordance with ASTM F593.
3. Flange design: Class D steel ring flange in accordance with AWWA C207 compatible with ANSI Class 125 and 150 bolt circles.
4. Coating and lining: Manufacturer’s standard fusion bonded epoxy, NSF 61 certified.
D. Flexible couplings:
1. Manufacturers: One of the following or equal:
a. Dresser, Inc., Style 253.
b. Romac Ind., Inc., Style 501.
c. Smith-Blair, Inc., Series 441.
2. Materials:
a. Center rings: Ductile iron in accordance with ASTM A536. b. Follower rings: Ductile iron in accordance with ASTM A536. c. Bolts and hex nuts:
1) Aboveground: High strength, low alloy steel in accordance with AWWA C111.
2) Buried and underwater: Type 316 stainless steel in accordance with ASTM F593.
3. Coating and lining: Manufacturer’s standard fusion bonded epoxy, NSF 61 certified.
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4. Center sleeve dimensions: Provide center sleeves with lengths in accordance with following table:
Nominal Pipe Size Sleeve Length
3 inch and smaller Manufacturer’s standard
4 inch through 8 inch 7 inches
10 inch through 14 inch 12 inches
Greater than 16 inch Use steel flexible coupling per Pipe Couplings for Steel Piping E. Flexible couplings (Gravity Flow):
1. Manufacturers: One of the following or equal:
a. Fernco Flexible Coupling.
2. Materials:
a. In accordance with ASTM D5926, C1173 and applicable portions of ASTM C443, C425, C564, and D1869.
3. Requirements:
a. In underground and underwater installations, couplings shall be corrosion resistant or coated with a fusion applied epoxy coating in accordance with AWWA C213.
b. Bolts and hardware shall be stainless steel 18-8 type 316 epoxy coated alloy hardware.
F. Restrained flange coupling adapter:
1. Manufacturers: One of the following or equal:
a. Romac Ind., Inc., Style RFCA.
b. Star Pipe Products, 3200 StarFlange™.
2. Materials:
a. Flange and flanged body: Ductile iron in accordance with ASTM A536. b. Follower ring: Lug type restraint system.
1) Follower ring: Ductile iron in accordance with ASTM A536. 2) Restraining lugs: Ductile iron in accordance with ASTM A536. a) Designed to contact the pipe and apply forces evenly. 3) Restraining bolts:
a) Ductile iron in accordance with ASTM A536.
b) Bolt heads shall be designed to twist off when the proper torque has been applied.
c. Bolts and hex nuts:
1) Aboveground: High strength, low alloy steel in accordance with AWWA C111.
2) Buried and underwater: Type 316 stainless steel bolts in accordance with ASTM F593.
3. Flange design: Class D steel ring flange in accordance with AWWA C207 compatible with ANSI Class 125 and 150 bolt circles.
4. Coating and lining: Manufacturer’s standard fusion bonded epoxy, NSF 61 certified.
5. Angular deflection: Restrained flange coupling adapter must allow angular deflection after assembly.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02007 (CONFORMED) G. Grooved joint couplings:
1. Manufacturers: The following or equal:
a. Victaulic Co., Series 31 or equal.
2. Materials:
a. Housings: Ductile iron in accordance with ASTM A536. b. Gasket:
1) FlushSeal® type, or equal. Elastomer in accordance with ASTM D2000.
2) Neoprene or BUNA-N.
c. Bolts and nuts: Electroplated steel in accordance with ASTM A449. d. Coating: As specified in Section 09960 - High-Performance Coatings.
3. For use with rigid or flexible radius grooved components in accordance with AWWA C606.
4. For connection to IPS steel pipe sizes, Victaulic Style 307.
2.03 PIPE COUPLINGS FOR CARBON STEEL PIPING
A. Dismantling joints:
1. Manufacturers: One of the following or equal:
a. Romac Ind., Inc., Style DJ400.
b. Smith-Blair, Inc., Series 975.
2. Materials:
a. Flanged spool:
1) C207 Schedule 40 pipe in accordance with ASTM A53 for sizes 3 inches to 12 inches.
2) Steel for pipe in accordance with ASTM A36 or A53 for sizes 14 inches to 72 inches.
b. End ring and body:
1) For sizes 3 inches to 12 inches, ductile iron in accordance with ASTM A536.
2) For sizes 14 inches to 72 inches, steel in accordance with ASTM A36.
c. Follower ring: Ductile iron in accordance with ASTM A536 or steel in accordance with ASTM A36 or A576.
d. Bolts and hex nuts:
1) Aboveground: High strength, low alloy steel in accordance with AWWA C111.
2) Buried and underwater: Type 316 stainless steel bolts in accordance with ASTM F593.
e. Tie rods: High tensile steel in accordance with ASTM A193 grade B7.
3. Flange design: Class D steel ring flange in accordance with AWWA C207 compatible with ANSI Class 125 and 150 bolt circles.
4. Coating and lining: Fusion bonded epoxy certified in accordance with NSF 61.
B. Flanged coupling adapters:
1. Manufacturers: One of the following or equal:
a. Dresser, Inc., Style 128-W.
b. Romac Ind., Inc., Style FCA501 (10 inch and smaller) or Style FC400 (12 inch and larger).
c. Smith-Blair, Inc., Series 913.
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2. Materials:
a. Flange and flanged body: Ductile iron or low carbon steel having a minimum yield strength of 30,000 pounds per square inch. b. Follower ring: Low carbon steel having a minimum yield strength of 30,000 pounds per square inch.
c. Bolts and hex nuts:
1) Aboveground: High-strength, low-alloy steel in accordance with AWWA C111.
2) Buried and underwater: Type 316 stainless steel bolts in accordance with ASTM F593.
3. Flange design: Class D steel ring flange in accordance with AWWA C207 compatible with ANSI Class 125 and 150 bolt circles.
4. Coating and lining: Manufacturer’s standard fusion bonded epoxy, NSF 61 certified.
C. Flexible couplings:
1. Manufacturers: One of the following or equal:
a. Dresser, Inc., Style 38.
b. Smith-Blair, Inc., Series 411.
c. Romac Ind., Inc., Style 511 or Style 400.
2. Materials:
a. Center sleeve and follower flanges: Ductile iron or low carbon steel having a minimum yield strength of 30,000 pounds per square inch. b. Bolts and hex nuts:
1) Aboveground: High strength, low alloy steel in accordance with AWWA C111.
2) Buried and underwater: Type 316 stainless steel bolts in accordance with ASTM F593.
3. Coating and lining: Manufacturer’s standard fusion bonded epoxy, NSF 61 certified.
4. Center sleeve dimensions: Provide center sleeves with lengths in accordance with following table:
Nominal Pipe Diameter Sleeve Length
2-1/2 inch and smaller Manufacturer’s standard
3 inch through 6 inch 7 inch
8 inch through 14 inch 7 inch
Greater than 14 inches 10 inch
D. Restrained flange coupling adapters:
1. Manufacturers: One of the following or equal:
a. Romac Ind., Inc., Style RFCA.
b. Star Pipe Products, 3200 StarFlange™.
2. Materials:
a. Flange and flanged body: Ductile iron in accordance with ASTM A536. b. Follower ring: Lug type restraint system.
1) Follower ring: Ductile iron in accordance with ASTM A536.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02007 (CONFORMED) 2) Restraining lugs: Ductile iron in accordance with ASTM A536. a) Designed to contact the pipe an apply forces evenly. 3) Restraining bolts: Ductile iron in accordance with ASTM A536. Bolt heads shall be designed to twist off when the proper torque has been applied.
c. Bolts and hex nuts:
1) Aboveground: High-strength, low-alloy steel in accordance with AWWA C111.
2) Buried and underwater: Type 316 stainless steel bolts in accordance with ASTM F593.
3. Flange design: Class D steel ring flange in accordance with AWWA C207 compatible with ANSI Class 125 and 150 bolt circles.
4. Coating and lining: Manufacturer’s standard fusion bonded epoxy certified in accordance with NSF 61.
E. Grooved joint couplings:
1. Model numbers from one manufacturer are shown to indicate type only.
Equivalent products of other manufacturers may be submitted for approval.
2. Coating: As specified in Section 09960 - High-Performance Coatings.
3. Sizes through 12 inch:
a. Rigid type:
1) Housings shall be cast with offsetting angle-pattern bolt pads to provide rigidity and system support and hanging in accordance with ASME B31.1 and B31.9.
2) 2 inch through 6 inch: Installation-ready, for direct stab installation without field disassembly, with grade EHP gasket rated to plus 250 degrees Fahrenheit.
3) Manufacturers: One of the following or equal:
a) Victaulic Style 107.
b) Victaulic Zero-Flex Style 07.
b. Flexible type:
1) For use in locations where vibration attenuation and stress relief are required.
2) Three flexible couplings may be used in lieu of a flexible connector. 3) The couplings shall be placed in close proximity to the source of the vibration.
4) Manufacturers: The following or equal:
a) Victaulic Style 77.
c. Flange adapter:
1) Flat face, ductile iron housings with elastomer pressure responsive gasket, for direct connection to ANSI Class 125 or 150 flanged components.
2) Manufacturers: The following or equal:
a) Victaulic Style 741.
4. Sizes 14 inch through 24 inch:
a. Victaulic AGS series with lead-in chamfer on housing key and wide width FlushSeal® gasket.
b. Rigid type:
1) Housing key shall fill the wedge shaped AGS groove and provide rigidity and system support and hanging in accordance with ASME B31.1 and B31.9.
Pipe Couplings - Linear Infrastructure
02007-9 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02007 (CONFORMED) 2) Manufacturers: The following or equal:
a) Victaulic Style W07.
c. Flexible type:
1) Housing key shall fit into the wedge shaped AGS groove and allow for linear and angular pipe movement.
2) Manufacturers: The following or equal:
a) Victaulic Style W77.
d. Flange adapter:
1) Flat face, ductile iron housings with elastomer pressure responsive gasket, for direct connection to ANSI Class 125 or 150 flanged components.
2) Manufacturers: The following or equal:
a) Victaulic Style W741.
5. For sizes 30 inch and larger:
a. Manufacturers: The following or equal:
1) Victaulic Style AGS multiple-segment housing may be used.
PART 3 EXECUTION
3.01 INSTALLATION
A. In underground and underwater installations, coat the exterior of coupling with a protective coating in accordance with manufacturer's instructions.
B. Joints and flexible connections shall be installed centered with no angular deflection unless otherwise indicated on the Drawings.
C. Flexible couplings and flange coupling adapters: Install with gap between pipe ends in accordance with the following table unless a greater gap is indicated on the Drawings. Maximum gap tolerance shall be within 1/8 inch.
1. Install flexible coupling with pipe gap located in middle of center sleeve.
2. Install flanged coupling adapter with end of plain end pipe in middle of flanged coupling body.
Center Ring Length Gap Dimension and Tolerance
4 inch through 6 inch 3/8 inch
7 inch 5/8 inch
10 inch and greater 7/8 inch
D. Provide harnesses (tie-downs) for flexible couplings unless otherwise indicated on the Drawings with a written note.
1. Design harnesses (tie-downs) for the test pressures as specified in the Piping Schedule in Section 02001 - Common Work Results for General Piping.
E. Grooved joint couplings:
1. Grooved ends: Clean and free from indentations, projections, and roll marks in the area from pipe end to groove.
2. Gaskets: Elastomer grade suitable for the intended service, and molded and produced by the coupling manufacturer.
Pipe Couplings - Linear Infrastructure
02007-10 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02007 (CONFORMED) F. Bolted, split-sleeve couplings:
1. Inspect each coupling to insure that there are no damaged portions of the coupling.
a. Pay particular attention to the sealing pad/sealing plate area. b. Before installation, thoroughly clean each coupling of any foreign substance which may have collected thereon and shall be kept clean at all time.
2. Wrenches:
a. Conform to manufacturer instructions.
b. Bolts and studs shall be tightened so as to secure a uniform gasket compression between the coupling and the body of the pipe with all bolts or studs tightened approximately the same amount.
c. Final tightening shall be done by hand (no air impact wrenches) and is complete when the coupling is in uniform contact with the outside surface of the pipe all around the circumference of the pipe.
3. No joint shall be misfit in any plane.
4. On the fixed ends of bolted, split-sleeve couplings, the shoulders shall bear on the restraint rings all around with no visible gap.
5. Ends of piping where coupler are installed shall be smooth and free of defects. a. Remove weld splatter and grind smooth.
b. Grind pipe seam welds flush with pipe wall and smooth.
END OF SECTION
Piping Systems Testing - Linear Infrastructure
02009-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02009 (CONFORMED) SECTION 02009
PIPING SYSTEMS TESTING - LINEAR INFRASTRUCTURE
PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Test requirements for piping systems.
1.02 REFERENCES
A. National Fuel Gas Code (NFGC).
B. American Society of Mechanical Engineers (ASME):
1. B31.1 - Power Piping.
2. B31.3 - Process Piping.
3. B31.8 - Gas Transmission and Distribution Piping Systems.
C. Underwriters Laboratories Inc. (UL).
1.03 TESTING REQUIREMENTS
A. General requirements:
1. Testing requirements are stipulated in Laws and Regulations; are included in the Piping Schedule in Section 15052 - Common Work Results for General Piping; are specified in the specifications covering the various types of piping; and are specified in this Section.
2. Requirements in Laws and Regulations supersede other requirements of Contract Documents, except where requirements of Contract Documents are more stringent, including higher test pressures, longer test times, and lower leakage allowances.
3. Test plumbing piping in accordance with Laws and Regulations, the plumbing code, as specified in Section 01410 - Regulatory Requirements, and UL requirements.
4. Test natural gas or digester gas piping:
a. For less than 125 pounds per square inch gauge working pressure, test in accordance with mechanical code, as specified in Section 01410 - Regulatory Requirements, or the National Fuel Gas Code, whichever is more stringent.
b. For 125 pounds per square inch gauge or greater working pressure, test per ASME B31.3 or ASME B31.8, whichever is more stringent.
5. When testing with water, the specified test pressure is considered to be the pressure at the lowest point of the piping section under test. a. Lower test pressure as necessary (based on elevation) if testing is performed at higher point of the pipe section.
Piping Systems Testing - Linear Infrastructure
02009-2 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02009 (CONFORMED) B. Furnish necessary personnel, materials, and equipment, including bulkheads, restraints, anchors, temporary connections, pumps, water, pressure gauges, and other means and facilities required to perform tests.
C. Water for testing, cleaning, and disinfecting:
1. Water for testing, cleaning, and disinfecting will be provided as specified in Section 01500 - Temporary Facilities and Controls.
D. Pipes to be tested: Test only those portions of pipes that have been installed as part of this Contract. Test new pipe sections prior to making final connections to existing piping. Furnish and install test plugs, bulkheads, and restraints required to isolate new pipe sections. Do not use existing valves as test plug or bulkhead.
E. Unsuccessful tests:
1. Where tests are not successful, correct defects or remove defective piping and appurtenances and install piping and appurtenances that comply with the specified requirements.
2. Repeat testing until tests are successful.
F. Test completion: Drain and leave piping clean after successful testing.
G. Test water disposal: Dispose of testing water at sanitary sewer manholes in accordance with requirements of federal, state, county, and city regulations governing disposal of wastes in the location of the Project and disposal site. All requirements and costs associated with notifications and obtaining any discharge permit or approvals shall be responsibility of Contractor.
1.04 SUBMITTALS
A. Submit as specified in Section 01330 - Submittal Procedures.
B. Schedule and notification of tests:
1. Submit a list of scheduled piping tests by noon of the working day preceding the date of the scheduled tests.
2. Notification of readiness to test: Immediately before testing, notify Engineer in writing of readiness, not just intention, to test piping.
3. Have personnel, materials, and equipment specified in place before submitting notification of readiness.
1.05 SEQUENCE
A. Clean piping before pressure or leak tests.
B. Test gravity piping underground, including sanitary sewers, for visible leaks before backfilling and compacting.
C. Underground pressure piping may be tested before or after backfilling when not indicated or specified otherwise.
Piping Systems Testing - Linear Infrastructure
02009-3 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02009 (CONFORMED) D. Backfill and compact trench, or provide blocking that prevents pipe movement before testing underground piping with a maximum leakage allowance.
E. Test underground piping before encasing piping in concrete or covering piping with slab, structure, or permanent improvement.
PART 2 PRODUCTS (NOT USED)
PART 3 EXECUTION
3.01 TESTING ALIGNMENT, GRADE, AND DEFLECTION
A. Alignment and grade:
1. Visually inspect the interior of gravity piping with artificial light, reflected light, or laser beam.
2. Consider inspection complete when no broken or collapsed piping, no open or poorly made joints, no grade changes that affect the piping capacity, or no other defects are observed.
B. Deflection test:
1. Pull a mandrel through the clean piping section under test.
2. Perform the test not sooner than 30 days after installation and not later than 60 days after installation.
3. Use a 9-rod mandrel with a contact length of not less than the nominal diameter of the pipe within 1 percent plus or minus.
4. Consider test complete when the mandrel can be pulled through the piping with reasonable effort by 1 person, without the aid of mechanical equipment.
3.02 AIR TESTING METHOD FOR PRESSURE PIPING
A. Air test piping, indicated with "AM" in the Piping Schedule, with air or another nonflammable or inert gas.
B. Test gas, air, liquefied petroleum gas, liquid chlorine, and chlorine gas piping by the air test method:
1. Test chlorine piping with dry air or nitrogen having a dew point of minus 40 degrees Fahrenheit or less. Supply temporary air dryers as necessary.
C. Test at pressure as specified in Piping Schedule in Section 15052 - Common Work Results for General Piping:
1. Provide temporary pressure relief valve for piping under test:
a. Set at the lesser of 110 percent of the test pressure or 50 pounds per square inch gauge over the test pressure.
2. Air method test pressures shall not exceed 110 percent of the piping maximum allowable working pressure calculated in accordance with the most stringent of ASME B31.1, ASME B31.3, ASME B31.8, or the pipe manufacturer's stated maximum working pressure.
3. Gradually increase test pressure to an initial test pressure equal to the lesser of 1/2 the test pressure or 25 pounds per square inch gauge.
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4. Perform initial check of joints and fittings for leakage.
5. Gradually increase test pressure in steps no larger than the initial pressure.
Check for leakage; at each step increase until test pressure reached.
6. At each step in the pressure, examine and test piping being air tested for leaks with soap solution.
7. Consider examination complete when piping section under test holds the test pressure for 15 minutes without losses.
3.03 TESTING GRAVITY FLOW PIPING
A. Test gravity flow piping indicated with "GR" in the Piping Schedule, as follows:
1. Unless specified otherwise, subject gravity flow piping to the following tests:
a. Alignment and grade.
b. For plastic piping test for deflection.
c. Visible leaks and pressure with maximum leakage allowance, except for storm drains and culverts.
2. Inspect piping for visible leaks before backfilling.
3. Provide temporary restraints when needed to prevent movement of piping.
4. Pressure test piping with maximum leakage allowance after backfilling.
5. With the lower end plugged, fill piping slowly with water while allowing air to escape from high points. Keep piping full under a slight head for the water at least 24 hours:
a. Examine piping for visible leaks. Consider examination complete when no visible leaks are observed.
b. Maintain piping with water or allow a new water absorption period of 24 hours for the performance of the pressure test with maximum leakage allowance.
c. After successful completion of the test for visible leaks and after the piping has been restrained and backfilled, subject piping to the test pressure for minimum of 4 hours while accurately measuring the volume of water added to maintain the test pressure:
1) Consider the test complete when leakage is equal to or less than the following maximum leakage allowances:
a) For concrete piping with rubber gasket joints: 80 gallons per day per inch of diameter per mile of piping under test:
(1) Advise manufacturer of concrete piping with rubber gasket joints of more stringent than normal maximum leakage
allowance.
b) For vitrified clay piping: 500 gallons per day per inch of diameter per mile of piping under test.
c) For other piping: 80 gallons per day per inch diameter per mile of piping under test.
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3.04 TESTING HIGH-HEAD PRESSURE PIPING
A. Test piping for which the specified test pressure in the Piping Schedule is 20 pounds per square inch gauge or greater, by the high head pressure test method, indicated "HH" in the Piping Schedule.
B. General:
1. Test connections, hydrants, valves, blowoffs, and closure pieces with the piping.
2. Do not use installed valves for shutoff when the specified test pressure exceeds the valve's maximum allowable seat differential pressure. Provide blinds or other means to isolate test sections.
3. Do not include valves, equipment, or piping specialties in test sections if test pressure exceeds the valve, equipment, or piping specialty safe test pressure allowed by the item's manufacturer.
4. During the performance of the tests, test pressure shall not vary more than plus or minus 5 pounds per square inch gauge with respect to the specified test pressure.
5. Select the limits of testing to sections of piping. Select sections that have the same piping material and test pressure.
6. When test results indicate failure of selected sections, limit tests to piping:
a. Between valves.
b. Between a valve and the end of the piping.
c. Less than 500 feet long.
7. Test piping for minimum 2 hours for visible leaks test and minimum 2 hours for the pressure test with maximum leakage allowance.
C. Testing procedures:
1. Fill piping section under test slowly with water while venting air:
a. Use potable water for all potable waterlines and where noted on the Piping Schedule.
2. Before pressurizing for the tests, retain water in piping under slight pressure for a water absorption period of minimum 24 hours.
3. Raise pressure to the specified test pressure and inspect piping visually for leaks:
a. Consider visible leakage testing complete when no visible leaks are observed.
D. Pressure test with maximum leakage allowance:
1. Leakage allowance is zero for piping systems using flanged, National Pipe Thread threaded and welded joints.
2. Pressure test piping after completion of visible leaks test.
3. For piping systems using joint designs other than flanged, threaded, or welded joints, accurately measure the makeup water necessary to maintain the pressure in the piping section under test during the pressure test period:
a. Consider the pressure test to be complete when makeup water added is less than the allowable leakage and no damage to piping and appurtenances has occurred.
b. Successful completion of the pressure test with maximum leakage allowance shall be achieved when the observed leakage during the test
Piping Systems Testing - Linear Infrastructure
02009-6 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02009 (CONFORMED) period is equal or less than the allowable leakage and no damage to piping and appurtenances has occurred.
c. When leakage is allowed, calculate the allowable leakage by the following formula:
L = S x D x P1/2 x 148,000-1
wherein the terms shall mean:
L = Allowable leakage in gallons per hour.
S = Length of the test section in feet.
D = Nominal diameter of the piping in inches.
P = Average observed test pressure in pounds per square inches gauge, at the lowest point of the test section, corrected for elevation of the pressure gauge.
x = The multiplication symbol.
3.05 TESTING LOW-HEAD PRESSURE PIPING
A. Test piping for which the specified test pressure is less than 20 pounds per square inch gauge, by the low head pressure test method, indicated "LH" in the Piping Schedule.
B. General:
1. Test pressures shall be as scheduled in Section 15052 - Common Work Results for General Piping.
2. During the performance of the tests, test pressure shall not vary more than plus or minus 2 pounds per square inch gauge with respect to the specified test pressure.
3. Test connections, blowoffs, vents, closure pieces, and joints into structures, including existing bell rings and other appurtenances, with the piping.
4. Test piping for minimum 2 hours for visible leaks test and minimum 2 hours for the pressure test with maximum leakage allowance.
C. Visible leaks test:
1. Subject piping under test to specified pressure measured at the lowest end.
2. Fill piping section under test slowly with water while venting air:
a. Use potable water for all potable waterlines and where noted on the Piping Schedule.
3. Before pressurizing for the tests, retain water in piping under slight pressure for the water absorption period of minimum 24 hours.
4. Raise pressure to the specified test pressure and inspect piping visually for leaks. Consider testing complete when no visible leaks are observed.
Piping Systems Testing - Linear Infrastructure
02009-7 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02009 (CONFORMED) D. Pressure test with maximum leakage allowance:
1. Pressure test piping after completion of visible leaks test.
2. Accurately measure the makeup water necessary to maintain the pressure in the piping section under test during the pressure test period:
a. Consider the pressure test to be complete when makeup water added is less than the allowable leakage of 80 gallons per inch of nominal diameter, per mile of piping section under test after 24 hours, and no damage to piping and appurtenances has occurred.
b. Successful completion of the leakage test shall have been achieved when the observed leakage is equal or less than the allowable leakage and no damage to piping and appurtenances has occurred.
E. Optional joint test:
1. When joint testing is allowed by note in the Piping Schedule, the procedure shall be as follows:
a. Joint testing will be allowed only for low head pressure piping. b. Joint testing does not replace and is not in lieu of any testing of the piping system or trust restraints.
2. Joint testing may be performed with water or air.
3. Joint test piping after completion of backfill and compaction to the top of the trench.
4. Joint testing with water:
a. Measure test pressure at the invert of the pipe. Apply pressure of 4 feet plus the inside diameter of the pipe in water column within 0.20 feet in water column.
b. Maintain test pressure for 1 minute.
c. Base the allowable leakage per joint on 80 gallons per inch nominal diameter, per mile of piping, per 24 hours equally distributed to the actual number of joints per mile for the type of piping.
d. Consider the pressure test to be complete when makeup water added is less than the allowable leakage.
e. Successful completion of the joint test with water shall have been achieved when the observed leakage is equal or less than the allowable leakage.
5. Joint testing with air:
a. Apply test pressure of 3 pounds per square inch gauge with a maximum variation of plus 0.20 and minus 0.00 pounds per square inch. b. Maintain test pressure for 2 minutes.
c. Consider the pressure test to be complete when the test pressure does not drop below 2.7 pounds per square inch for the duration of the test.
END OF SECTION
Soils and Aggregates for Earthwork
02050-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02050 (CONFORMED) SECTION 02050
SOILS AND AGGREGATES FOR EARTHWORK
PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Material requirements for soils and aggregates.
1.02 REFERENCES
A. ASTM International (ASTM):
1. C117 - Standard Test Method for Materials Finer than 75-µm (No. 200) Sieve in Mineral Aggregates by Washing.
2. C131 - Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine.
3. C136 - Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates.
4. D2419 - Standard Test Method for Sand Equivalent Value of Soils and Fine Aggregate.
5. D4318 - Standard Test Method for Liquid Limit, Plastic Limit, and Plasticity Index of Soils.
6. D4829 - Standard Test Method for Expansion Index of Soils.
B. California State Transportation Agency, Department of Transportation (CALTRANS):
1. (Standard Specifications).
2. California Test Methods (CTM):
a. California Test 205 - Method of Test for Determining Crushed Particles. b. California Test 211 - Method of Test for Abrasion of Coarse Aggregate by Use of the Los Angeles Abrasion Testing Machine.
c. California Test 217 - Method of Test for Sand Equivalent. d. California Test 229 - Method of Test for Durability Index. e. California Test 301 - Method of Test for Determining the Resistance "R" Value of Treated and Untreated Bases, Subbases, and Basement Soils by the Stabilometer.
1.03 SUBMITTALS
A. Product data:
1. Material source.
2. Gradation.
3. Testing data.
B. Quality control for aggregate base course:
1. Test reports: Reports for tests required by Sections of Standard Specifications.
2. Certificates of Compliance: Certificates as required by Sections of Standard Specifications.
Soils and Aggregates for Earthwork
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1.04 DELIVERY, STORAGE, AND HANDLING
A. Storage and protection: Protect from segregation and excessive moisture during delivery, storage, and handling.
B. Comply with Standard Specifications storage requirements, if applicable.
PART 2 PRODUCTS
2.01 MATERIALS - GENERAL
A. Provide material having maximum particle size not exceeding 4 inches and that is free of trash, lumber, debris, leaves, grass, roots, stumps, and other organic matter.
B. Comply with soil and aggregate material requirements in the Standard Specifications; unless specified otherwise.
2.02 NATIVE MATERIAL
A. Native soil:
1. Sound, earthen material.
2. Expansion index less than 35 when tested in accordance with ASTM D4829.
3. Conforms to size and grade within the following limits when tested in accordance with ASTM C117 and ASTM C136:
Sieve Sizes
(Square Openings)
Percent by Weight
Passing Sieve
1-inch 100
Number 200 30 maximum
B. Native soil-select:
1. Sound earthen material.
2. Sum of plasticity index when tested in accordance with ASTM D4318 and the percent of material by weight passing a Number 200 sieve shall not exceed 23 when tested in accordance with ASTM C136.
3. Organic content not be greater than 3 percent by volume.
4. Corrosion resistance requirements:
a. Resistivity minimum (wet aggregates): 5,000 ohm-cm.
b. pH: 5.0 to 12.0.
c. Chlorides maximum: 100 parts per million.
d. Sulfates maximum: 200 parts per million.
2.03 AGGREGATE BASE COURSE
A. Material requirements:
1. Class 2, 3/4-inch maximum aggregate size, free from organic matter and other deleterious substances, and of such nature that aggregate can be compacted readily under watering and rolling to form a firm, stable base.
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2. Recycled aggregate base course shall only be considered for use in pavement structural sections.
3. Aggregate base course for structures:
a. Consist of crushed or fragmented particles.
b. Coarse aggregate material retained in Number 4 sieve shall consist of material of which at least 25 percent by weight shall be crushed particles when tested in accordance with California Test 205.
4. Aggregate shall not be treated with lime, cement, or other chemical material.
5. Durability index: Not less than 35 when tested in accordance with California Test 229.
6. Aggregate grading and sand equivalent tests shall be performed to represent not more than 500 cubic yards or 1 day's production of material, whichever is smaller.
7. Sand equivalent: Not less than 25 when tested in accordance with California Test 217.
8. Resistance (R-value): Not less than 78 when tested in accordance with California Test 301.
9. Conforms to size and grade within the following limits when tested in accordance with ASTM C117 and ASTM C136:
Sieve Sizes
(Square Openings)
Percent by Weight
Passing Sieve
1 inch 100
3/4 inch 90 - 100
Number 4 35 - 60
Number 30 10 - 30
Number 200 2 - 9
2.04 GRAVEL
A. Material requirements:
1. Consists of hard, durable particles of stone or gravel; or crushed to the specified sizes and gradations; and free from organic matter, lumps or balls of clay, and other deleterious matter.
2. Crush or waste coarse material and add or waste fine material in order to meet the specified gradations.
3. Fraction of material passing Number 40 sieve: Material having plasticity index not greater than 5 when tested in accordance with ASTM D4318.
4. Durability: Percentage of wear not greater than 40 percent when tested in accordance with California Test 211.
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5. Conform to sizes and grade within the following limits when tested in accordance with ASTM C117 and C136:
Sieve Size
(Square Openings)
Percent by Weight
Passing Sieve
Type A Type B Type C
2 inch 100 -- --
1-1/2 inch 95 - 100 100 --
3/4 inch 35 - 60 55 - 85 100
3/8 inch 15 - 40 35 - 65 50 - 100
Number 4 0 - 25 20 - 35 30 - 45
Number 30 -- 5 - 15 10 - 20
Number 200 0 - 5 2 - 9 2 - 9
2.05 DRAIN ROCK
A. Material requirements:
1. Durability index: Percentage of wear not greater than 40 when tested in accordance with California Test 229.
2. Consists of hard, durable particles of stone or gravel; screened or crushed to specified size and gradation; and free from organic matter, lumps or balls of clay, or other deleterious matter.
3. Crush or waste coarse material and waste fine material as required to meet gradation requirements.
4. Conforms to size and grade within the following limits when tested in accordance with ASTM C117 and C136:
Sieve Size
(Square Openings)
Percent By Weight
Passing Sieve
2 inch 100
1-1/2 inch 95 - 100
3/4 inch 50 - 100
3/8 inch 15 - 55
Number 200 0 - 2
2.06 CLASS 2 PERMEABLE FILL
A. Material requirements:
1. Durability index: Percentage of wear not greater 40 when tested in accordance with California Test 229.
2. Consists of hard, durable particles or fragments of stone or gravel; crushed to required size and grading; and free from organic matter, lumps or balls of clay, alkali, adobe, or other deleterious matter.
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3. Materials derived from processing demolished or removed asphalt concrete are not acceptable.
4. Aggregate base course for structures:
a. Consist of crushed or fragmented particles.
5. When sampled and tested in accordance with specified test methods, material shall comply with following requirements: Sand equivalent: Not less than 75 when tested in accordance with ASTM D2419.
6. Conforms to size and grade within the following limits when tested in accordance with ASTM C117 and C136:
Sieve Size
(Square Openings)
Percent by Weight
Passing Sieve
1 inch 100
3/4 inch 90 - 100
3/8 inch 40 - 100
Number 4 25 - 40
Number 8 18 - 33
Number 30 5 - 15
Number 50 0 - 7
Number 200 0 - 3
2.07 IMPORTED FILL
A. Material requirements:
1. Import fill shall be granular soil, free of organic material and debris and meet the following requirements:
a. Plasticity Index less than 15.
b. Organic Content less than 2 percent.
c. Conforms to size and grade within the following limits:
Sieve Size
(Square Openings)
Percent by Weight
Passing Sieve
3-inch 100
No. 4 35-100
No. 30 20-100
No. 200 10-45
2.08 SAND
A. Clean, coarse, natural sand.
B. Non-plastic when tested in accordance with ASTM D4318.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02050 (CONFORMED) C. Conforms to size and grade within the following limits when tested in accordance with ASTM C117 and C136:
Sieve Size
(Square Openings)
Percent by Weight
Passing Sieve
1/2 inch 100
Number 200 0 - 20
2.09 STABILIZATION MATERIAL
A. Durability percentage of wear not greater than 40 percent when tested in accordance with California Test 211.
B. Consists of clean, hard, durable particles of crushed rock or gravel; screened or crushed to the specified sizes and gradations; and free of any detrimental quantity of soft, friable, thin, elongated, or laminated pieces, disintegrated material, organic matter, oil, alkali, or other deleterious substance.
C. Shall be free of slaking or decomposition under the action of alternate wetting and drying.
D. The portion of material retained on the 3/8-inch sieve shall contain at least 50 percent of particles having 3 or more fractured faces. Not over 5 percent shall be pieces that show no such faces resulting from crushing. Of that portion which passes the 3/8-inch sieve but is retained on the Number 4 sieve, not more than 10 percent shall be pieces that show no faces resulting from crushing.
E. Conforms to size and grade when tested in accordance with ASTM C117 and ASTM C136.
Sieve Size
(Square Openings)
Percent by Weight
Passing Sieve
1 inch 100
3/4 inch 90 - 100
Number 4 0 - 10
Number 200 0 - 2
PART 3 EXECUTION (NOT USED)
END OF SECTION
Site Clearing
02200-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02200 (CONFORMED) SECTION 02200
SITE CLEARING
PART 1 GENERAL
1.01 SUMMARY
A. Section includes: Clearing, grubbing, and stripping project site.
1.02 REFERENCES
A. United States Code of Federal Regulations (CFR):
1. 40 - Protection of Environment:
a. 503 - Standards for the Use or Disposal of Sewage Sludge.
1.03 DEFINITIONS
A. Clearing: Consists of removal of natural obstructions and existing foundations, buildings, fences, lumber, walls, stumps, brush, weeds, rubbish, trees, boulders, utility lines, and any other items which interferes with construction operations or are designated for removal.
B. Grubbing: Consists of the removal and disposal of wood or root matter below the ground surface remaining after clearing and includes stumps, trunks, roots, or root systems greater than 1 inch in diameter or thickness to a depth of 6 inches below the ground surface.
C. Stripping: Includes the removal and disposal of all organic sod, topsoil, grass and grass roots, and other objectionable material remaining after clearing and grubbing from the areas designated to be stripped. The depth of stripping is estimated to be 6 inches, but the required depth of stripping will be determined by the Engineer.
D. Sludge:
1. Sludge contains both inert and organic material and is classified as a “Class B” product in accordance with 40 CFR 503.
2. Dispose of sludge on a permitted land application site or in a permitted landfill.
E. Sludge-entrained soil:
1. Sludge-entrained soil is all existing material within the top layer of soil within each existing sludge storage lagoon.
2. Based on geotechnical investigations performed during the design phase of the project, the depth of the sludge-entrained soil layer extends 5.5 feet to
6.5 feet below the elevation of the existing sludge storage lagoon bottom.
3. Sludge-entrained soil does exist on the faces of the existing embankments.
4. Dispose of sludge-entrained soil classified as a “Class B” in accordance with 40 CFR 503 on a permitted land application site or in a permitted landfill.
Site Clearing
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1.04 QUALITY ASSURANCE
A. Regulatory requirements: Verify and comply with applicable regulations regarding those governing noise, dust, nuisance, drainage and runoff, fire protection, and disposal.
B. Pre-construction conference: Meet with Engineer to discuss order and method of work.
1.05 PROJECT CONDITIONS
A. Environmental requirements:
1. For suspected hazardous materials found: As specified in Section 01354 - Hazardous Material Procedures.
1.06 SEQUENCING AND SCHEDULING
A. Clearing and grubbing: Perform clearing and grubbing in advance of grading operations.
B. Remove sludge-entrained soil from within each existing sludge storage lagoon bottom and dispose of this material in a location that is permitted to receive Class B biosolids in accordance with 40 CFR 503.
C. Following the removal of sludge-entrained soil, remove remainder of soil to depth as indicated on the Drawings. This material may be utilized to reconstruct sludge storage lagoon embankments, provided it meets specified requirements for screened native material as specified in Section 02050 - Soils and Aggregates for Earthwork.
PART 2 PRODUCTS (NOT USED)
PART 3 EXECUTION
3.01 EXAMINATION
A. Verification of conditions: Examine site and verify existing conditions for beginning work.
3.02 PREPARATION
A. Protect existing improvements from damage by site preparation work.
3.03 INSTALLATION
A. Clearing:
1. Clear areas where construction is to be performed and other areas as indicated on the Drawings, or specified in this Section, of fences, lumber, walls, stumps, brush, roots, weeds, trees, shrubs, rubbish, and other objectionable material of any kind which, if left in place, would interfere with
Site Clearing
02200-3 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02200 (CONFORMED) proper performance or completion of the work, would impair its subsequent use, or form obstructions.
2. Do not incorporate organic material from clearing and grubbing operations in fills and backfills.
3. Contractor's temporary construction facilities: Fill or remove pits, fill, and other earthwork required for erection of facilities, upon completion of the work, and level to meet existing contours of adjacent ground.
B. Grubbing:
1. From excavated areas: Grub stumps, roots, and other obstructions 3 inches or over in diameter to depth of not less than 18 inches below finish grade.
2. In embankment areas or other areas to be cleared outside construction area:
Do not leave stumps, roots, and other obstructions higher than the following requirements:
Height of Embankment
Over Stump Depth of Clearing and Grubbing
0 feet to 2 feet Grub stumps or roots 3 inches or over in diameter to 18 inches below original grade. Cut others flush with ground.
2 feet to 3 feet Grub stumps 1 foot and over in diameter to 18 inches below original grade. Cut others flush with ground.
Over 3 feet Leave no stumps higher than stump top diameter, and in no case more than 18 inches.
3. Backfill and compact cavities left below subgrade elevation by removal of stumps or roots to density of adjacent undisturbed soil.
C. Stripping:
1. Remove soil material containing sod, grass, or other vegetation to depth of 6 inches from areas to receive fill or pavement and from area within 5 feet outside foundation walls.
2. Deposit stripped material in accordance with following requirements:
a. At locations acceptable to Engineer.
b. Use accepted material in top 6 inches of areas to be used for future planting.
D. Preservation of Vegetation and Property:
1. Every reasonable effort shall be made to preserve and protect trees, natural vegetation, landscaping, structures, fences, and natural barriers that are not in conflict with the completion of the Work. Existing trees not shown to be removed on the Drawings shall be protected in place. Such features that are damaged by the Contractor’s activities shall be replaced or otherwise repaired in a manner meeting the approval of the Construction Manager. Trees that are not designated to be removed, but are removed without the written consent of the Construction Manager shall be replaced in kind at the Contractor’s expense and the Contractor shall be subjected to Liquidated Damages per the General Conditions.
2. Acceptance by the Construction Manager of the Contractor’s operations or methods of clearing, grubbing, demolition, or disposal shall not relieve the Contractor of the responsibility for protecting the Work and adjacent
Site Clearing
02200-4 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02200 (CONFORMED) properties. While performing Work under this Section, the Contractor shall comply with the terms and conditions concerning preservation of property as described in the General Conditions of this Contract and other Specification Sections.
E. Material reuse and recycling:
1. 100 percent of trees, stumps, rocks and associated vegetation and soils resulting primarily from land clearing shall be reused or recycled. For a phased project, such material may be stockpiled on site until project completion.
2. Contractor shall provide Engineer with list of local markets and salvage sites for reuse of clearing debris.
END OF SECTION
Auger Boring
02224-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02224 (CONFORMED) SECTION 02224AD3
AUGER BORING
PART 1 GENERAL
1.01 SUMMARY
A. This Section establishes the minimum requirements for installing pipe by auger boring at the locations indicated on the Drawings. The Contractor shall furnish all labor, equipment, power, and materials necessary for pipe installation.
1.02 RELATED WORK SPECIFIED ELSEWHERE
A. Section 02260 - Excavation Support and Protection.
B. Section 02471 - Geotechnical Instrumentation and Monitoring.
C. Section 02448 - Jacking Steel Pipe Casings.
1.03 REFERENCE SPECIFICATIONS, CODES, AND STANDARDS
A. The publications listed below form a part of this Specification to the extent referenced. Where conflicts between these Specifications and the referenced specification, code, or standard occur, the more restrictive specification shall govern. The latest edition available on the date of issue of Contract Documents shall be used.
B. Occupational Safety and Health Administration (OSHA) Regulations and Standards for Underground Construction, 29 CFR Part 1926, Subpart S, Underground Construction, and Subpart P, Excavations.
C. Geotechnical Reports:
1. City of Ukiah Recycled Water Pipeline - Phase 4 Design (August 2021).
1.04 DEFINITIONS
A. Auger Boring: Auger boring is a trenchless construction method that uses a cutterhead rotated by a flight of cased augers to cut the soil in front of the casing pipe. A power unit consisting of a motor and transmission located in the jacking shaft are used to rotate the augers. Hydraulic jacks or a rail system located in the jacking shaft are used to propel the casing pipe sections and flight augers forward.
B. Carrier Pipe: Permanent pipe for operational use that is used to convey flows.
C. Casing: A pipe installed during tunneling that supports the ground and provides a stable underground support system for the installation of a carrier pipe.
D. Jacking Pipe: The jacking pipe may be the carrier pipe or casing pipe, and must be specifically designed to be installed by pipejacking using guided boring equipment.
New Section
Auger Boring
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1.05 DESIGN CRITERIA
A. Auger Boring Equipment
1. Augers used for all auger boring work required for this project shall have a diameter of at least 85 percent of the casing I.D. Undersize augers shall not be used.
2. Auger boring equipment selected for the project shall be suitable for and capable of efficiently advancing through the geologic conditions described in the Geotechnical Report and the geologic conditions anticipated by the Contractor. The machine shall be capable of excavating cobbles or boulders or other objects up to 30 percent of the outside diameter of the augers.
3. The auger boring equipment shall be equipped with water level survey equipment. The auger boring machine shall be steerable in vertical direction to allow the operator to maintain grade within the specified tolerances.
4. The boring machine shall be manufactured by a company that specializes in the design and fabrication of this type of equipment and has had at least 5 years of experience manufacturing and marketing guided boring systems.
B. A pipe lubrication injection system shall be provided to inject pipe lubricants as required to minimize jacking forces.
C. Where there is a potential for flammable or noxious gases to be encountered, the machine shall have an automatic shut-off switch and provisions for continuous gas monitoring.
D. The Contractor shall use manual data acquisition for collecting information for the jacking record. The Engineer and/or Owner's representative shall have reasonable access to all areas of the work, including the operations control area, and shafts, for inspection and collection of data, measurements, and observations.
E. The maximum allowable radial overcut shall be 0.5 inch. Radial overcut values shall be selected to minimize potential settlements of the ground and subsurface facilities. The radial overcut will be determined as the difference between the maximum diameter created by the cutting teeth or overcut band on the machine (whichever is greater) and the outer diameter of the casing pipe, divided by 2.
F. Methods and equipment shall control surface settlement and heave above the pipeline to prevent damage to existing utilities, facilities, and improvements. Ground movements (settlement/heave) shall be limited to values that do not cause damage or distress to surface features, utilities, or improvements. In no case shall settlements exceed the maximum allowable values listed in Section 02471 - Geotechnical Instrumentation and Monitoring. The Contractor shall be responsible for any damage to existing features, improvements, or utilities, and shall repair any damage to the satisfaction of the Engineer, at no additional cost to the Owner, and without schedule extension.
G. A thrust block or other means of providing reaction force shall be used to transfer jacking loads to the soil behind the jacking shaft. If a thrust block is used, it shall be installed perpendicular to the proposed pipe alignment, and shall be designed to withstand the maximum jacking pressure anticipated, with a factor of safety of at least 1.5 without excessive deflection or displacement.
Auger Boring
02224-3 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02224 (CONFORMED) H. Provide portal stabilization/ground improvement as necessary to prevent loss of ground and uncontrolled inflows at entry and exit locations.
1.06 QUALITY ASSURANCE
A. Failure to meet the qualification requirements is failure to fulfill the Contract and the Contractor will be required to obtain a subcontractor that meets the qualification requirements.
B. All boring work shall be performed by an experienced subcontractor or Contractor who has at least 3 years of experience in performing boring work and has completed a minimum of 5 projects of similar diameter in similar ground conditions.
At least one of the projects shall have involved an individual drive equal to or greater in length than the longest drive on this project. The Contractor shall submit a description of referenced projects including owner’s name and current contact information, project superintendent, and machine operators.
C. The project superintendent shall have at least 3 years of experience in supervising boring construction. The Contractor shall submit a description of referenced projects including owner’s name and contact information, project superintendent, and machine operators.
D. The boring machine operator(s) shall have technical training and experience in the operation of the proposed boring equipment and shall have completed, as a primary operator, at least 5 similar boring projects involving at least 150 feet of boring on each project. At least one of the projects shall have an individual drive equal or greater in length than the longest drive on this project. The Contractor shall submit a description of referenced project including owner’s name and contact information, project superintendent, and machine operators.
E. The site safety representative and personnel responsible for air quality monitoring shall be experienced in tunnel construction and shall be certified by OSHA.
F. The surveyor responsible for line-and-grade control shall be a Licensed Surveyor registered in the State of California who has prior experience setting control for pipejacking projects.
G. The Contractor shall provide at least 72 hours advance written notice to Engineer prior to beginning the bore.
H. All Work by the Contractor shall be done in the presence of the Engineer unless the Engineer grants prior written approval to perform such Work in Engineer’s absence.
I. The Contractor shall immediately notify the Engineer, in writing, when any problems are encountered with equipment or materials, or if the Contractor believes the conditions encountered are materially and significantly different than those represented within the Contract Documents.
Auger Boring
02224-4 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02224 (CONFORMED) J. The Contractor shall allow access to the Engineer and shall furnish necessary assistance and cooperation to aid the Engineer in observations, measurements, data, and sample collection, including, but not limited to the following:
1. The Owner and/or Engineer shall have access to the operator control panel prior to, during, and following all boring operations. This shall include, but not be limited to, providing visual access to real-time operator control screens, gauges, and indicators.
2. The Owner and/or Engineer shall have access to the jacking and reception shafts prior to, during, and following all boring operations. The Contractor shall provide safe access in accordance with all safety regulations.
3. The Owner and/or Engineer shall have access to spoils removed from the tunnel excavation during and following all boring operations. The Engineer shall be allowed to collect soil samples from the spoil piles a minimum of once per installed pipe section, or every 10 feet, whichever is more often, and at any time when changes in soil conditions or obstructions are apparent or suspected.
1.07 SUBMITTALS
A. Submittals shall be made in accordance with the requirements of these Specifications, and shall provide sufficient detail to allow the Engineer to judge whether the proposed equipment, materials, and procedures will meet the Contract requirements. All drawings shall be legible with dimensions accurately shown and clearly marked in English. Review of submitted details and data will be based on consideration of requirements for the completed work, protection of existing utilities, and the possibility of unnecessary delays in the execution of the work to be constructed under this Contract. Review and acceptance of the Contractor's Submittals by the Engineer shall not be construed in any way as relieving the Contractor of its responsibilities under this Contract.
B. Qualifications: Submit the names of the project superintendent, machine operators, and site safety representative. Submit personnel qualifications in accordance with Paragraphs 1.6 B through F. Provide evidence of OSHA certification for site safety representative and personnel responsible for air quality monitoring.
C. Submit the following describing the boring equipment and construction methods to be employed:
1. A detailed description of the boring equipment and procedures to be employed.
2. Manufacturer's literature describing the boring system to be used including machine type, equipment dimensions, and spoil removal system. Provide descriptions of 3 projects on which this system has been successfully used including names, addresses, and telephone numbers of owner's representatives for these projects as well as length, diameter, and pipe material used.
3. Capacity of jacking system or other system to provide thrust. Provide details of thrust ring, jacking controls, and pressure gages.
4. Provide thrust block, if used, and jacking frame design and details, including dimensions.
5. Provide details of pipe lubrication injection system and pipe lubricants to be used as required during construction. Include a description of proposed
Auger Boring
02224-5 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02224 (CONFORMED) lubrication procedures during jacking, including estimated volumes of lubricant that will be pumped.
6. Describe spoil handling, transport, and disposal equipment and procedures, and spoil disposal sites. Provide written documentation from the disposal site(s) indicating that they will accept the spoil and are in compliance with prevailing (and applicable) regulations.
D. Submit the planned procedure for installation of the final product pipe using a 2- step process for auger boring.
E. Shaft Layout Drawings: The Contractor shall submit shaft layout drawings detailing dimensions and locations of all equipment, including overall work area boundaries.
The Contractor’s layout drawings shall show that all equipment and operations shall be completely contained within the allowable construction zones shown on the Drawings.
F. Schedule:
1. Provide a schedule for boring work identifying all major construction activities as independent items. The schedule shall include as a minimum the following activities: mobilization; groundwater control at jacking and receiving shafts; shaft excavation and support; jacking equipment setup; casing installation, and product pipe installation; site restoration; cleanup; and demobilization.
2. The schedule shall also include the work hours and workdays for each activity, and a written description of the construction activities.
3. The schedule shall be reviewed by the Engineer and shall be updated and resubmitted by the Contractor every 2 weeks or more frequently, if requested by the Engineer.
G. Daily Records: The following daily records shall be submitted to the onsite Engineer by noon on the day following the shift for which the data or records were taken.
1. Jacking Records: The Contractor shall provide complete jacking records to the Engineer. These records shall include, at a minimum: date, time, name of operator, drive identification, installed casing pipe number and corresponding bore length, rate of advance, jacking forces, volume of soil removed, line and grade offsets, any movement of the guidance system, problems encountered with the jacking frame or other components or equipment, and durations and reasons for delays.
2. Manually recorded observations should be made at intervals of not less than once every twenty feet during casing installation, whenever conditions change, and as directed by the Engineer.
3. At least 7 days prior to beginning the bore, the Contractor shall submit samples of the manual jacking records. Samples shall include the manual logs or records to be used.
4. Lubrications Records: The Contractor shall provide lubrication records to the Engineer. These records shall include the injection locations, lubrication type and additives, pressures, and amount, in gallons, of lubricant pumped throughout a drive. The record will also include the date, time, and drive distance when used.
Auger Boring
02224-6 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02224 (CONFORMED) H. Calculations: Calculations shall be submitted in a neat, legible format. Assumptions used in calculations shall be consistent with information provided in the Geotechnical Report.
1. Provide an estimate of the maximum jacking force expected to complete each drive, accounting for both face pressures and frictional resistance along the pipe string.
2. Provide calculations demonstrating that the soils behind the thrust block can transfer the maximum planned jacking forces exerted by the main jacks to the ground during pipe installation with a factor of safety of at least 1.5, without excessive deflection or displacement.
3. Provide settlement calculations based on contractors means and methods and anticipated geotechnical conditions.
I. Submit a safety plan for the boring operations.
1.08 SAFETY
A. The Contractor is responsible for safety on the job site. Methods of construction shall ensure the safety of the work, Contractor's and other employees on site, and the public. Perform all work in accordance with the current applicable regulations of the Federal, State, and local agencies. Comply with all applicable provisions of Tunnel Safety Orders of the State of California and 29 CFR Part 1926, Subpart S, Underground Construction and Subpart P, Excavations, by OSHA. In the event of conflict, comply with the more restrictive applicable requirement.
B. No gasoline powered equipment shall be permitted in jacking and receiving shafts.
Diesel, electrical, hydraulic, and air powered equipment are acceptable, subject to applicable local, State, and Federal regulations.
C. Furnish and operate a temporary ventilation system in accordance with applicable safety requirements when personnel are in the shaft or in the pipe. Perform all required air and gas monitoring. Ventilation system shall provide a sufficient supply of fresh air and maintains an atmosphere free of toxic or flammable gasses in all underground work areas.
PART 2 PRODUCTS
2.01 MATERIALS
A. Steel Casing Pipe: Steel casing pipe to be installed by direct pipejacking shall conform to Section 02448 - Jacking Steel Pipe Casings.
B. Final product pipe to be installed, shall conform to the requirements on the Drawings. Typical Details labeled for microtunneling shall be used for auger boring.
Auger Boring
02224-7 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02224 (CONFORMED) PART 3 EXECUTION
3.01 GENERAL
A. Boring shall not begin until the following have been completed:
1. All required submittals have been provided, reviewed, and accepted.
2. Jacking shaft and receiving shaft excavations and support systems have been completed in accordance with reviewed and accepted submittals.
3. Soil and groundwater control and portal stabilization for breaking out of jacking shafts and into receiving shafts has been established.
4. All settlement monitoring instruments have been installed, surveyed, and accepted by the Engineer.
5. The location, orientation, and grade of the jacking frame or guide rails have been surveyed to ensure they are on the proper line and grade and to verify that they are properly supported. Special care shall be taken when setting the guide rails or jacking frame in the jacking shaft to ensure stability and accuracy of the alignment and grade.
6. Site safety representative has prepared a code of safe practices and an emergency plan in accordance with Cal/OSHA and other applicable requirements. Provide the Engineer with a copy of each prior to starting guided boring. Hold safety meetings and provide safety instruction for new employees as required by Cal/OSHA.
7. Utility locate requests have been made through the California Underground Service Alert (USA) One-Call system and to all known and suspected utility owners who do not participate in the One-Call system. The Contractor shall confirm that all requested locates are made prior to commencing tunneling operations. Contractor shall review as-builts and conduct walkover site inspection for evidence of unmarked and mismarked utilities. Contractor shall confirm locations of all crossing and adjacent utilities within the tolerance zone defined in California One-Call law using accepted good practices as described in One-Call law and Common Ground Alliance Best Practices. Contractor shall implement good practices necessary to protect all utilities.
B. Furnish all necessary equipment, power, water, and utilities for equipment, pipe lubricant mixing and pumping, removal and disposal of spoil, and other associated work required for the Contractor's methods of construction.
C. Conduct all operations such that trucks and other vehicles do not create a dust or noise nuisance in the streets and adjacent properties. Promptly clean up, remove, and dispose of any spoil spillage.
D. All work shall be done so as not to disturb roadways, adjacent structures, landscaped areas, or utilities. Any damage shall be immediately repaired to the satisfaction of the Engineer at no additional cost to the Owner.
E. Notify the Engineer at least 15 days before beginning boring excavation.
F. Size and locate shafts to minimize interference with vehicular and pedestrian traffic.
All equipment and operations must be contained within the allowable construction zones shown on the Drawings. All Work shall be in accordance with the applicable permits.
Auger Boring
02224-8 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02224 (CONFORMED)
3.02 BORING
A. Pipe installation by boring shall be completed in accordance with the shop drawings, reviewed and accepted submittals, and permit conditions.
B. Boring machine shall meet the specified requirements of this section.
C. Provide a suitable jacking frame and thrust block or other means of providing thrust resistance to carry out the work.
D. The axial forces from the jacking frame shall be distributed to the pipe uniformly through a properly designed thrust adaptor to prevent damage to the ends of the pipe. The jacking system shall be capable of continuously monitoring the jacking pressure.
E. Pipes shall be jacked into position following the design line and grade of the pipeline without damaging the pipe. In the event a section of pipe is damaged during the jacking operation, the damaged section of pipe shall be removed. Methods of repairing the damaged pipe may be proposed, subject to approval by the Engineer.
F. Provide a lubrication system, and inject pipe lubricants through injection ports at the rear of the reaming head, as necessary, to minimize pipe friction.
G. Boring operations shall control surface settlement and heave above the pipeline to prevent damage to existing utilities, facilities, and improvements. The Contractor shall repair any damage resulting from construction activities, at no additional cost to the Owner and without extension of schedule for completion. The Contractor shall modify equipment and procedures as required to avoid recurrence of excessive settlements, heave, or damage.
H. The boring machine shall be operated to restrict the excavation of the materials to a volume equal to the boring head and pipe jacked, to prevent loss of ground and settlement or possible damage to overlying structures. Control the advance rate and monitor the volume of material excavated and adjust advance rate, as required, to avoid loss of ground, over-excavation, and surface heave.
I. Transport and dispose of all excavated materials properly away from the construction site. Solids shall be disposed of at acceptable facilities in accordance with current state regulations for disposal of these materials. Only use the disposal sites identified in the submittals for muck disposal.
3.03 CONTROL OF LINE AND GRADE
A. The benchmarks and control points indicated on the Drawings have been established in the field by the Owner. The Contractor shall verify these benchmarks by survey prior to the start of construction, and shall confirm positions or report any errors or discrepancies in writing to the Engineer.
B. After confirming all established survey control points, the Contractor shall use these control points to furnish and maintain all reference lines and grades for boring. The Contractor shall use these lines and grades to establish the location of the pipe
Auger Boring
02224-9 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02224 (CONFORMED) using a guidance system. Submit to the Engineer copies of field notes used to establish all lines and grades and allow the Engineer to check guidance set up prior to beginning boring. The Contractor remains fully responsible for the accuracy of the work and the correction of it, as required.
C. The jacking pipe shall be installed in accordance with the following tolerances:
1. Variations from design line or grade: +/- 3 inches maximum.
D. If the pipe installation exceeds the specified tolerances, the Contractor shall correct the installation, including any necessary redesign of the pipeline or structures and acquisition of necessary easements. All corrective work shall be performed by the Contractor at no additional cost to the Owner and without schedule extension, and is subject to the written approval of the Engineer.
3.04 CLEANUP AND RESTORATION
A. After completion of the boring and pipe installation, all construction debris, slurry, oil, grease, and other materials shall be removed from the installed pipe, jacking and receiving shafts, and all Contractor work areas. Cleaning shall be incidental to the construction.
B. Restoration shall follow construction as the work progresses and shall be completed as soon as possible. Restore and repair any damage resulting from surface settlement or heave caused by shaft excavation or boring. Any property damaged or destroyed shall be restored to a condition equal to or better than existing prior to construction. Restoration shall be completed no later than 30 days after the pipe is in place along any boring segment.
END OF SECTION
AD3 Addendum No. 3
Dewatering - Plant
02240-1 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02240 (CONFORMED) SECTION 02240
DEWATERING - PLANT
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Installation and maintenance of dewatering systems.
2. Disposal of water entering excavation or other parts of the Work.
1.02 REFERENCES
A. National Electrical Manufacturers Association (NEMA):
1. 250 - Enclosures for Electrical Equipment (1000 V Maximum).
1.03 SUBMITTALS
A. Dewatering plan:
1. Dewatering design analysis.
2. Required permits.
3. Arrangement, location, and depths of dewatering system components.
4. Type and sizes of filters.
5. Identify proposed alignment, support, and protection for discharge pipe.
Identify location of discharge and provide details for that location. For pipes discharging to manholes, provide details of pipe entry at manhole.
B. Well construction logs, including:
1. Descriptions of actual materials encountered, categorized in accordance with Unified Soil Classification System.
2. Construction details.
3. Well development procedures and results.
4. Deviations from original design.
C. Flowmeter:
1. Product information on flowmeter and chart recorder.
2. Recent flowmeter calibration documentation.
3. Chart(s) from flowmeter chart recorder.
D. Qualifications:
1. Dewatering contractor.
2. Dewatering design engineer.
3. Testing laboratory.
E. Control points and schedule of measurements:
1. Location and details of control points and method and schedule of measurements.
Dewatering - Plant
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2. All structures or facilities located within the radius of influence of the dewatering operation shall have control points established to detect any settlement which may develop.
3. Within 24 hours of constructing control points, survey and submit measurements at each control point. Submit copy of field notes with measurements.
4. Survey and submit measurements of control points every 7 days. Submit measurements within 24 hours. For each control point:
a. Show current measurement and the change in measurement from first measurement taken.
b. Show graphical plot of movements.
1.04 QUALITY ASSURANCE
A. Dewatering plan and dewatering system analysis:
1. Prepared by a qualified Civil Engineer, licensed in the state where the Project is located.
a. The dewatering design engineer shall have at least 8 years of experience in designing similar systems.
B. Dewatering Contractor shall have at least 8 years of experience in installing similar systems.
C. Testing laboratory shall meet discharge permit testing laboratory qualifications.
D. Regulatory requirements:
1. Obtain required water discharge permits.
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. Flowmeter and chart recorder: The following or equal:
1. Badger Turbo Series Meter with totalizer.
2.02 DESIGN AND PERFORMANCE CRITERIA
A. Design requirements:
1. Keep excavations reasonably free from water. Draw down static groundwater level to minimum of 3 feet below anticipated bottom of excavations before the excavation reaches bottom elevation.
2. Dewatering design analysis. Include the following:
a. Evaluation of anticipated subsurface conditions.
b. Required well spacing.
c. Diameter of wells.
d. Depth to screen, screen height, and mesh size.
e. Backfill and filter pack.
f. Pump size.
g. Drawdown duration.
h. Drawdown and steady state flow rates.
Dewatering - Plant
02240-3 8660F10 July 12, 2023 - CONFORMED
pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02240 (CONFORMED) i. Plans for de-silting of groundwater before discharge. j. Anticipated area influenced by dewatering system and potential impacts to adjacent structures, existing and proposed. Mitigation measures needed to prevent any expected settlements. Contingency plan for restoring nearby structures if settlement is observed as result of dewatering operations.
k. Expected settlements.
3. Include water drawdown curves in dewatering calculations.
4. Coordinate dewatering design with excavation and shoring design. Excavation and shoring design shall consider changes in groundwater conditions and associated earth pressures.
5. Do not place concrete or masonry foundations or concrete slabs in water. Do not allow water to rise over these elements until concrete or mortar has set for at least 24 hours.
6. Maintain operation of dewatering system until complete structure -- including walls, slabs, beams, struts, and other structural elements -- has been constructed; concrete has attained its specified compressive strength; and backfill has been completed to finished grade.
7. Provide standby power to ensure continuous dewatering in case of power failure.
B. Dewatering shored excavations:
1. Dewater from within shoring.
2. Use impermeable shoring system to minimize lowering of groundwater outside shoring.
3. Extend impermeable shoring below bottom of excavation sufficient amount to:
a. Minimize lowering of groundwater outside shoring.
b. Prevent unstable excavation due to piping and heave.
4. To minimize settlement outside shoring due to dewatering, do not lower groundwater outside shoring more than 1 foot. Provide groundwater recharge if required to maintain this groundwater elevation outside of shoring.
5. Provide monitoring wells located outside shoring for monitoring groundwater elevation.
C. Obtain written permission from Engineer before locating wells, well points, or drain lines for dewatering within the limits of a structure’s foundation.
D. Locate dewatering facilities where they will not interfere with utilities and construction work to be performed by others.
E. Discharge:
1. Discharge water to the City of Ukiah Wastewater Treatment Plant (WWTP) influent channel in accordance with permits.
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3.01 INSTALLATION
A. The responsibility for conducting the dewatering operation in a manner which will protect adjacent structures and facilities rests solely with Contractor.
B. During construction, provide and maintain ample means and devices to promptly remove and properly dispose of water entering excavation or other parts of the work, whether water is surface water or underground water.
C. Keep excavations reasonably free of water.
D. Make provisions to maintain continuous dewatering:
1. Provide standby power to maintain dewatering during power outages and interruptions.
2. Provide 24-hour monitoring by personnel skilled in operation and maintenance of the system, and capable of providing or obtaining work required to maintain system operation.
E. Monitoring wells:
1. Provide at least 1 groundwater level monitoring well. If more than 4 dewatering wells or well points are installed, provide 1 additional monitoring well for every 4 dewatering wells or well points.
2. Locate monitoring wells within 6 feet of excavation and mid-way between dewatering wells or well points.
3. Provide temporary threaded cap, not less than 2 inches in diameter at the top of wells.
4. Protect dewatering wells in place during excavation.
F. Intercept and divert precipitation and surface water away from excavations. Use dikes, curb walls, ditches, pipes, sumps, or other means acceptable to Engineer.
G. Disposal of water:
1. Dispose of water from the work in suitable manner without damage to adjacent property.
2. Do not drain water into work built or under construction.
3. Properly dispose of discharge water in accordance with Federal, State, and local requirements and permits and in such manner that it will not be a menace to public health or safety.
4. For discharge of water into holding tanks or infiltration ponds, include a means of overflow protection that is acceptable to Engineer.
H. Wells, well points, and drain lines for dewatering:
1. Provide after receiving Engineer's written acceptance.
2. Fill dewatering wells, pipes, and french drains to be left in place within structure foundation limits with Class “C” concrete as specified in Section 03300 - Cast-in-Place Concrete or grout as specified in Section 03600 - Grouting.
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3.02 CONSTRUCTION
A. Prior to release of groundwater to its static level: Confirm that:
1. All groundwater pressure relief devices for structure are fully operational.
2. Construction of structure is complete and concrete has reached its specified compressive strength.
3. Backfill of structure is complete.
B. Control release of groundwater to its static level to prevent disturbance of natural foundation soils or compacted backfills and fills and to prevent flotation or movement of structures, pipelines, or other facilities.
3.03 FIELD QUALITY CONTROL
A. Flowmeter and chart recorder:
1. Provide flowmeter and continuous 24-hour chart recorder for recording dewatering flow.
2. Maintain meter recorder and provide continuous reading charts with minimum capacity of 24 hours each.
3. Calibrate flowmeter and recorder device to provide accuracy within 5 percent.
4. Submit written evidence of calibration of meter and recorder signed by a Professional Engineer registered in the state where Project is located.
5. Portable recorder (bench mount), dual scale, and mounted in NEMA Type 4X enclosure with transparent plastic door and latch. Operate unit off 115-volts, 60-Hertz power supply.
6. Submit readings to the Engineer on a weekly basis.
B. Monitoring wells:
1. Record groundwater levels at least once a week. Submit readings to Engineer within 1 week.
END OF SECTION
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DEWATERING - LINEAR INFRASTRUCTURE
PART 1 GENERAL
1.01 SUMMARY
A. Section includes:
1. Requirements to dewater trench excavations.
1.02 REFERENCES
A. National Electrical Manufacturers Association (NEMA):
1. 250 - Enclosures for Electrical Equipment (1,000 V Maximum).
1.03 COORDINATION REQUIREMENTS
A. Coordinate the dewatering system design with excavation and shoring design.
B. Excavation and shoring design shall consider changes in groundwater conditions and associated earth pressures in compliance with project geotechnical report requirements.
C. Do not place concrete or masonry foundations or concrete slabs in water. Do not allow water to rise over these elements until concrete or mortar has set for at least 24 hours.
1. Maintain operation of dewatering system:
a. Until complete structure has been constructed, including walls, slabs, beams, struts, and other structural elements.
b. Concrete has attained its specified compressive strength. c. Backfill has been completed to 3 feet above normal static groundwater level at the site.
1.04 SUBMITTALS
A. Submit as specified in Section 01330 - Submittal Procedures and Section 01600 - Product Requirements.
B. Dewatering Plan.
C. Copies of correspondence with the authorities having jurisdiction, regarding dewatering operations, including but not limited to the authorization to drill, well driller's license, well driller’s permits, and completion report.
D. Well construction logs: Include the following at a minimum:
1. Descriptions of actual materials encountered, categorized in accordance with the Unified Soil Classification System.
2. Construction details.
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3. Well development procedures and results.
4. Deviations from original design.
E. Submit a drainage encroachment permit.
F. Submit a Settlement Monitoring Plan.
G. Qualifications:
1. Dewatering Contractor.
2. Dewatering design Engineer.
a. Civil Engineer, licensed in state where the project is located. b. Minimum experience: 8 years of experience in designing similar systems of equal type, size, and complexity to that required for the Work.
3. Testing laboratory.
H. Flowmeter:
1. Product information on flowmeter and chart recorder.
2. Recent flowmeter calibration documentation.
3. Flowmeter chart recorder.
1.05 CONTROLS
A. Dewatering shall be performed at the discretion of Contractor as approved by the Engineer.
B. Contractor shall demonstrate the system proposed and verify that adequate equipment, personnel, and materials are provided to dewater the excavations.
C. Contractor shall discharge water without damaging adjacent property, and in conformance with discharge permit and regulations, including meeting discharge limitation parameters.
1. Any penalties and fees due to Non-Conformance with permit shall be the responsibility of the Contractor.
D. Contractor shall control the rate and effect of the dewatering in such a manner as to avoid objectionable settlement and subsidence, defined shows settlement or damage that resulted from the dewatering.
1. Engineer has determined 1 inch as the maximum amount of settlement moving upward or downward at any monitoring point in comparison to the elevations taken during the baseline survey.
2. Operating wells for active dewatering shall not exceed a distance of 2,000 linear feet at a single trenching run and the discharge water volume must be within the terms of the discharge Permit.
a. Simultaneous dewatering at different trenching runs will be performed under the same discharge Permit and the cumulative discharge water volume is subject to the terms of the Permit.
3. Operating wells for active dewatering shall not exceed 90 days of continuous operation at a single trenching run.
a. At a time not longer than 80 days after the beginning of dewatering operations at a trenching run, if the Contractor believes that construction
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02241 (CONFORMED) cannot be completed within the specified 90-day limit, the Contractor shall notify the Engineer immediately.
b. At that time, a meeting between the Contractor and the Engineer shall be scheduled to review settlement monitoring surveys and to discuss options in order to prevent damage to existing structures.
4. If survey monitoring during dewatering activities reveals settlement upward or downward of any monitoring point has reached 90 percent of this maximum settlement value the Contractor shall notify the Engineer immediately. a. At that time, a meeting between the Contractor and the Engineer shall be scheduled to review settlement monitoring surveys and to discuss options in order to prevent damage to existing structures.
E. Contractor shall be responsible for ensuring dewatering operations shall be adequate to ensure the integrity of the finished project.
1.06 SETTLEMENT
A. Establish reference points by a Professional Land Surveyor where critical structures or facilities exist immediately adjacent to areas of proposed dewatering.
B. Observe reference points at daily intervals by a Professional Land Surveyor to detect settlement.
C. Contractor shall implement a Settlement Monitoring Plan. The plan shall include, but not be limited to the following:
1. Contractor shall be responsible to install settlement monitoring points along those existing structures within the influence zone of the dewatering wells. The location and number of monitoring points including the method of establishing the points shall be approved by the Engineer prior to their installation.
2. Contractor shall utilize a land surveyor licensed in the State of California, to perform settlement monitoring surveys. The surveyor shall select a benchmark or control point to perform settlement surveys suitable to the Engineer that is outside of the influence zone of the dewatering system.
3. Contractor shall establish settlement monitoring points at maximum 200-foot intervals along the existing right-of-way on both sides of the construction areas for open cut pipelines.
4. Contractor shall establish settlement monitoring points at maximum 50-foot intervals along the existing right-of-way on both sides of the construction areas for tunneled pipelines; and 6 monitoring points by each launching or receiving shaft, 2 points on either side of shaft, 2 points on curb each side of roadway at the prescribed intervals for tunneling.
a. Additional monitoring points to be identified by the Engineer, may be required at locations of critical structures.
b. The settlement monitoring plan and the monitoring points shall be approved by the Engineer and installed prior to the initial start-up of the dewatering system.
5. Contractor/Owner shall perform a baseline survey of monitoring points prior to the start-up of the dewatering system and then perform a survey once weekly within the areas of active dewatering. A final survey shall also be performed at least 60 days after the decommissioning of the dewatering system.
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6. Contractor shall furnish a report of the settlement monitoring elevations with cumulative elevation differences to the Engineer within 24 hours of the survey being performed.
a. Contractor shall also furnish a final report including the results of all surveys at the end of the settlement monitoring period. b. Contractor shall notify the Engineer of the settlement monitoring schedule at least 7 days prior to the final settlement monitoring survey performed.
D. Contractor shall install monitoring wells to monitor the groundwater level:
1. Provide at least 1 groundwater level monitoring well. If more than 4 dewatering wells or well points are installed, provide 1 additional monitoring well for every 4 dewatering wells or well points.
2. Locate monitoring wells within 6 feet of excavation and mid-way between dewatering wells or well points.
3. Provide temporary threaded cap, not less than 2 inches in diameter at the top of wells.
4. Protect dewatering wells in place during excavation.
1.07 DEWATERING WELLS
A. Contractor shall design the well casing, screen slot size, and gravel filter pack according to applicable laws and regulations.
PART 2 PRODUCTS
2.01 SYSTEM DESCRIPTION
A. Contractor shall design the dewatering system to keep excavations reasonably free from water. Draw down static groundwater level to minimum of 3 feet below anticipated bottom of excavations before the excavation reaches bottom elevation.
B. Dewatering design and analysis. Include the following:
1. Evaluation of anticipated subsurface conditions.
2. Required well spacing.
3. Diameter of wells.
4. Drilling method and development technique.
5. Depth to screen, screen height, and mesh size.
6. Backfill and filter pack.
7. Pump size.
8. Drawdown curves.
9. Drawdown duration.
10. Drawdown and steady state flow rates.
11. Plans for treatment of groundwater treatment.
12. Plans for de-silting of groundwater before discharge.
13. Anticipated area influenced by dewatering system and potential impacts to adjacent structures, existing and proposed.
a. Mitigation measures needed to prevent any expected settlements. b. Contingency plan for restoring nearby structures if settlement is observed as result of dewatering operations.
14. Expected settlement calculations.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02241 (CONFORMED) C. Contractor shall include water drawdown curves in dewatering calculations.
D. Provide dewatering design sealed by a registered Professional Engineer, licensed in the project location.
2.02 DESIGN CRITERIA
A. Prior to excavation, submit a detailed Dewatering Plan and operation schedule for dewatering of excavations.
B. Create a Settlement Monitoring Plan and submitted to the Engineer for approval.
C. Design the dewatering system to keep excavations reasonably free from water.
1. Select appropriate method to dewater, subject to Engineer's review and concurrence.
2. Shored excavation dewatering as specified in Section 02318 - Trenching.
3. Draw down static groundwater level to minimum of 3 feet below anticipated bottom of excavations before the excavation reaches bottom elevation.
4. Dewatering analysis shall determine the following:
a. Evaluation of anticipated subsurface conditions.
b. Required well spacing.
c. Diameter of wells.
d. Depth to screen, screen height, and mesh size.
e. Backfill and filter pack.
f. Pump size.
g. Drawdown curves.
h. Drawdown duration.
i. Drawdown and steady state flow rates.
j. Plans for treatment of groundwater treatment.
k. Settlement calculations.
5. Prevent unstable excavation due to pumping and heave.
6. Dewatering plan prepared by a professional Engineer licensed in the state where the project is located.
7. Dewatering plan shall include, but not be limited to the following:
a. Dewatering design analysis and supporting calculations. b. Required permits.
c. Arrangement, location, and depths of dewatering system components including monitoring wells.
d. Type of proposed pumps to be used and their locations. e. Header piping size, material, and piping alignments. f. Meter type and locations.
g. Valve type and locations.
h. Piezometer locations.
i. Well casing and well screen materials.
j. Gravel filter pack materials.
k. Proposed discharge locations, as identified in this Section. l. Settling tanks and filters.
m. Pipeline material, alignment, and connection details. n. Materials added to borehole during drilling and construction of wells. o. Sample and sieve analysis of well materials.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02241 (CONFORMED) p. Settlement Monitoring Plan for existing above and underground structures adjacent to the dewatering system.
q. Standby pumping equipment.
r. Required power supply equipment.
s. Design of any needed water treatment facilities shall comply with the NPDES Discharge Permit.
D. Locate dewatering facilities where they will not interfere with utilities and construction work.
E. Contractor shall design and install a water treatment system if necessary to comply with discharge limitation parameters.
F. Decommissioning:
1. Contractor shall obtain Engineer's approval to begin decommissioning activities.
2. Contractor shall decommission and remove dewatering system.
3. Contractor shall abandon existing monitoring wells located along the alignment.
2.03 EQUIPMENT
A. Provide and maintain equipment necessary for dewatering.
B. Keep standby equipment available at all times to ensure efficient dewatering and maintenance of dewatering operation during power failure.
2.04 DEWATERING PUMPS
A. The preliminary well type and location are as indicated on the Drawings.
B. Pumps shall be specifically designed for dewatering applications where pumping sand may be encountered.
1. The impeller and rotor shaft shall be hardened, heat-treated stainless steel.
The mechanical seal material shall be silicon carbide.
2. Pump motor shall have thermal overload protection.
2.05 FLOWMETER AND CHART RECORDER
A. Flowmeter and chart recorder: One of the following or equal:
1. Badger Turbo Series Meter with totalizer.
PART 3 EXECUTION
3.01 DEWATERING PROCEDURES
A. The designer of the dewatering system shall oversee dewatering operations.
B. Site grading shall promote drainage. Surface runoff shall be diverted away from excavations.
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pw://Carollo/Documents/Client/CA/Ukiah/8660F10/Specifications/New Scope/02241 (CONFORMED) C. Complete dewatering prior to excavation.
1. Ensure that the subsurface soil is not being removed by the dewatering operation.
D. Continue dewatering operations throughout construction to achieve the following:
1. Maintain the groundwater level a minimum of 3 feet below bottom of excavation.
2. Preserve the undisturbed bearing capacity of the subgrade soils at proposed bottom of excavation.
E. Contractor shall make provisions to maintain continuous dewatering.
1. Provide standby power to maintain dewatering during power outages and interruptions.
2. Provide 24-hour monitoring by personnel skilled in operation and maintenance of the system, and capable of providing or obtaining work required to maintain system operation.
F. If foundation soils are disturbed or loosened by the upward seepage of water or an uncontrolled flow of water, excavate the affected areas and replaced with drain rock at no additional cost to Owner.
G. Maintain a trench bottom free from standing water.
H. Prevent flotation by maintaining a positive and continuous removal of water.
I. Contractor shall be fully responsible and liable for damages that may result from failure to adequately keep excavations dewatered.
J. Do not place concrete or masonry foundations or concrete slabs in water.
1. Do not allow water to rise over these elements until concrete or mortar has set for at least 24 hours.
K. Maintain operation of dewatering system until the pipeline has been installed and backfill has been completed to finished grade 3 feet above normal static groundwater level at the site.
L. Wells, well points, and drain lines for dewatering:
1. Obtain Engineer's written acceptance prior to commencing operations.
2. Fill dewatering wells, pipes, and French drains to be left in place within structure foundation limits with Class “C” concrete as specified in Section 03300 - Cast-In-Place Concrete, or grout as specified in Section 03600 - Grouting.
3.02 SETTLEMENT AND GROUNDWATER LEVEL MONITORING
A. Conduct dewatering operation in a manner that will protect adjacent structures and facilities.
B. Repair damage to adjacent structures and restore facilities at no expense to Owner.