Cities Index.
Agenda packet

Ukiah City Council
September 3, 2025

Document
Agenda packet
Meeting
September 3, 2025
Body
Ukiah City Council
Pages
2,338
Original file
227.6 MB
Text extracted from the city's file for reading and search. Open the original on ukiahca.api.civicclerk.com. That file is the official record.

West Yost – March 2023 01310 - 2 City of Ukiah
592-50-22-14 Project Meetings Thickening and Dewatering Improvements
D. Minutes of Meeting

1. The Engineer will compile minutes of the meeting and distribute copies to all participants.

1.05 PROGRESS MEETINGS
A. Unless otherwise arranged, there will be a weekly progress meeting at a time and at an on-site location that is mutually agreed upon between the Contractor, Engineer and Owner.

1. Meetings are to enable orderly project review during the progress of work.

2. Engineer, Owner, Contractor’s Superintendent, representatives of subcontractors, suppliers’ representatives as may be needed, other Contractors working at the site, and other parties shall attend these meetings.

3. Engineer will preside over the meeting and will compile and distribute minutes of the meeting.

B. The purpose of the weekly meetings is to coordinate the efforts of all concerned to result in smooth and coordinated progress towards completion of the overall project.

C. Contractor shall bring to each weekly meeting the updated 3-week “look ahead” schedule.

D. The Contractor will be required to address the following items at the weekly meeting:

1. Work completed last week.

2. Work anticipated next week.

3. Log of submittals and Requests for Information.

4. Contract document deficiencies or questions noted during prior week.

5. Schedule status and corrective measures and procedures that are planned to place the project back on schedule, if such action is necessary.

6. Report of any accidents, and any site safety issues that need to be addressed.

E. Other agenda items to be discussed include:

1. Review and revise as necessary and approve minutes of previous meetings.

2. Status of Requests for Information, Change Order Requests, submittals and shop drawings.

3. Identify problems that impede planned progress.

4. Other current business pertaining to the Work.

F. Revision of Minutes

1. Unless published minutes are challenged in writing prior to the next regularly scheduled progress meeting, they will be accepted as properly stating the activities and decisions of the meeting.

2. Persons challenging published minutes shall reproduce and distribute copies of the challenge to all indicated recipients of the particular set of minutes.

3. Challenge to minutes shall be settled as priority item of "old business" at the next regularly scheduled meeting.

1.06 PROGRESS SCHEDULE AND PROGRESS BILLING MEETINGS
A. Once each month, a progress schedule and progress payment meeting will be conducted with the Engineer. The purpose of this meeting is to review the Progress Payment Estimate and reach agreement on the extent of the Work completed during the pay period.

Page 725 of 2338 ends

West Yost – March 2023 01310 - 3 City of Ukiah
592-50-22-14 Project Meetings Thickening and Dewatering Improvements
B. The meeting date will be scheduled in accordance with the Owner’s deadline for submittal of Progress Pay Estimate.

C. The updated progress schedule will also be reviewed at this meeting as described in Section 01320. Schedule impacts, time extension requests, actual and anticipated schedule activity sequence/duration changes, delays, and other schedule-related topics will be discussed.

D. The Engineer may require more frequent progress schedule meetings should there be schedule revisions that necessitate such a meeting.

1.07 SUBMITTAL MEETINGS
A. When required in the individual technical specification, or if requested by the Contractor or the Engineer, a meeting regarding a required submittal will be held to facilitate the timeliness of the submittal preparation and review process.

1.08 QUALITY ASSURANCE MEETINGS
A. The Contractor or the Engineer may request a meeting prior to the start of a particular phase of the project to discuss how the Work shall be accomplished in accordance with the quality requirements of the Contract Documents, Codes, permits and industry standards. Quality assurance inspections and tests that are applicable to the Work will be discussed.

1.09 PRE-INSTALLATION MEETINGS
A. When required in the individual specification, or if requested by the Contractor or Engineer, a pre-installation meeting will be held to review conditions of the installation, installation procedures, and coordination with related work. This meeting will be scheduled to take place in advance of installation of the equipment or as required in the technical specifications.

1.10 PRE-SUBSTANTIAL COMPLETION MEETING
A. Thirty (30) days prior to the estimated substantial completion, the Owner, Engineer, Contractor, and appropriate subcontractors will meet to review maintenance manuals, guarantees, closeout submittals, bonds, and service contracts for materials and equipment.

1.11 SPECIAL MEETINGS
A. Any time during progress of the Work, the Owner and the Construction Manager shall have the authority to require the Contractor and any subcontractor, suppliers, or service providers to attend job-site conferences on matters which require immediate or special attention. Any notice of such conference shall be duly observed and complied with by the Contractor and subcontractors, suppliers, or service providers without extra cost to Owner.

1.12 POST CONSTRUCTION GUARANTY PERIOD MEETING
A. Contractor shall meet with a representative of the Owner and the Engineer approximately eleven (11) months after the date of Substantial Completion to inspect the Work. Meeting will be arranged by the Owner at least seven (7) days before meeting. The Contractor will require attendance of its Project Manager/Superintendent, appropriate manufactures and appropriate subcontractors.

Page 726 of 2338 ends

West Yost – March 2023 01310 - 4 City of Ukiah
592-50-22-14 Project Meetings Thickening and Dewatering Improvements
PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION (NOT USED)

END OF SECTION

Page 727 of 2338 ends

West Yost – March 2023 01320 - 1 City of Ukiah
592-50-22-14 Construction Schedule Thickening and Dewatering Improvements
SECTION 01320

CONSTRUCTION SCHEDULE
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Procedures for preparing and revising the construction schedule used for planning and managing construction activities.

1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section

1. General Conditions

1.03 COORDINATION WITH GENERAL CONDITIONS
A. Prepare and submit a Preliminary Schedule in accordance with the requirements of General Conditions.

B. The Contractor’s execution of the Work shall begin based on the Preliminary Schedule accepted by the Engineer. As Work progresses, the Schedule shall be updated and resubmitted in accordance with the requirements of this Section.

1.04 USE OF SCHEDULE
A. The schedule and subsequent updates provide a basis for determining the progress status of the project relative to the completion time, specific dates, and for determining the acceptability of the Contractor’s progress payment estimates.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION

3.01 DESCRIPTION
A. The Contractor shall prepare a time scale network schedule using a critical path method.

A general guide for preparing such a schedule is contained in "The Use of CPM in Construction, a Manual for Contractors," published by the Associated General Contractors of America.

B. The schedule shall depict all significant construction activities and all items of work listed in the breakdown of contract prices submitted by the Contractor in accordance with the General Conditions.

1. Indicate assigned values for each part of the work.

2. Indicate dependencies between activities to establish the effect the progress of any one activity has on the schedule.

C. Completion time shall be shown on the schedule. Activities making up the critical path shall be identified.

D. No activity on the schedule shall have a duration longer than 21 days or assigned value greater than $50,000, except activities comprising only fabrication and delivery, which may extend for more than 21 days.

1. Activities that exceed these limits shall be divided into more detailed components.

Page 728 of 2338 ends

West Yost – March 2023 01320 - 2 City of Ukiah
592-50-22-14 Construction Schedule Thickening and Dewatering Improvements

2. The scheduled duration of each activity shall be based on the work being performed during the normal 40-hour workweek with allowances made for legal holidays and normal weather conditions.

3.02 SUBMITTAL PROCEDURES
A. Submit Preliminary Schedule in accordance with the General Conditions.

B. Submit the following items:

1. Two copies of the project schedule formatted to fit 11x17 inch sheets.

2. Electronic file of the schedule.

C. The Engineer will review the Preliminary Schedule to ascertain compliance with specified project constraints, compliance with milestone dates, reasonableness of durations and sequence, accurate inter-relationships and completeness.

D. Review comments will be transmitted to Contractor following completion of preliminary review.

E. Revise and resubmit schedule in accordance with written comments, or request joint meeting to resolve objections.

F. When schedule reflects the Engineer and Contractor’s agreement of project approach and sequence, schedule will be accepted as the Base Schedule. Use the accepted Base Schedule for planning, organizing and directing the work and for reporting progress.

3.03 UPDATING THE SCHEDULE
A. Submit an updated schedule with each Application for Payment.

B. Progress payment requests may not be processed by Engineer if updated schedule has not been submitted or if update is found unacceptable.

C. Prepare update using most recent accepted version of schedule including:

1. Actual start date of activities that have been started.

2. Actual finish date of activities that have been completed.

3. Percentage of completion of activities that have been started but not finished.

4. Actual dates on which milestones were achieved.

D. Submit narrative report in conjunction with updated schedule describing:

1. Activities added to or deleted from schedule. Identify added activities in manner distinctly different from original activity designations.

2. Changes in sequence or estimated duration of activities.

3. Current or anticipated problems and delays affecting progress, impact of these problems and delays and measures taken to mitigate impact.

4. Assumptions made and activities affected by incorporating change order work into the schedule.

3.04 REVISIONS TO SCHEDULE
A. Submit revised schedule within five (5) days when:

1. Delay in completion of any activity or group of activities indicates an overrun of the contract time or milestone dates by twenty (20) working days or five (5%) percent of the remaining duration, whichever is less.

Page 729 of 2338 ends

West Yost – March 2023 01320 - 3 City of Ukiah
592-50-22-14 Construction Schedule Thickening and Dewatering Improvements

2. Delays in submittals, deliveries, or work stoppages are encountered making necessary the replanning or rescheduling of activities.

3. The schedule does not represent the actual progress of activities.

4. Any change to the sequence of activities, the completion date for major portions of the work, or when changes occur that affect the critical path.

5. Contract modification necessitates schedule revision; submit schedule analysis of change order work with cost proposal.

B. Submit printed copies of the revised schedule and electronic file.

C. Make revisions on most recently accepted version of schedule.

3.05 THREE WEEK “LOOK AHEAD” SCHEDULE
A. In addition to the overall Construction Schedule, provide a “Look Ahead” schedule in bar chart format. Show work activities undertaken in the preceding week and the work activities that will be undertaken during the upcoming three weeks.

B. Prepare the Look Ahead schedule weekly and submit to the Engineer at the weekly construction progress meeting.

END OF SECTION

Page 730 of 2338 ends

West Yost – March 2023 01320 - 4 City of Ukiah
592-50-22-14 Construction Schedule Thickening and Dewatering Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 731 of 2338 ends

West Yost – March 2023 01325 - 1 City of Ukiah
592-50-22-14 Field Engineering Thickening and Dewatering Improvements
SECTION 01325

FIELD ENGINEERING
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Requirements for surveying and surveying record documents.

1.02 REFERENCED SECTION
A. The following Section is referenced in this Section

1. Section 01330 – Submittals

2. Section 01770 – Contract Closeout Procedures

3. Section 01780 – Record Documents

1.03 DATUM
A. Vertical and horizontal datum are based on the coordinates and benchmarks shown on the Drawings or past drawings.

1. Locate and protect Owner furnished control points prior to starting the Work and preserve control points during construction.

2. Re-establish control points disturbed by operations at no cost to Owner.

3. The elevations of any existing facilities, in particular where tie-ins to this Project are required, must be field verified by the Contractor and confirmed with relation to the elevations for the facilities under this Project.

B. Establish other vertical and horizontal control from these Owner furnished reference points as required to properly layout and construct the Work. Install connections based on actual elevations of existing structures to which connections are made.

C. Base layout upon existing structures and the vertical and horizontal datum established by the Owner.

D. The Contractor shall be responsible for the preservation of existing survey monuments or permanent bench marks. Any monuments or bench marks disturbed or destroyed by Contractor shall be referenced and replaced by a licensed land surveyor.

1.04 QUALITY ASSURANCE
A. The Contractor’s Surveyor shall be a land surveyor registered in California or civil engineer qualified and licensed in California with at least five (5) years surveying experience of similar projects.

B. Dimensions for existing structures, piping, paving, and other nonstructural items are taken from the available information during the Owner’s planning and design.

1. Field verify dimensions and conditions in advance of any construction in the area.

2. Any discrepancy between the field survey and the information indicated in the Contract Documents shall be immediately brought to Construction Manager’s attention by written notification.

3. In questions arising as to proper location of lines and grades, the Construction Manager's decision will be final.

Page 732 of 2338 ends

West Yost – March 2023 01325 - 2 City of Ukiah
592-50-22-14 Field Engineering Thickening and Dewatering Improvements
C. Accuracy of the Contractor’s stakes, alignments and grades may be periodically and randomly checked by the Construction Manager.

1. If requested by Construction Manager, the Contractor shall supply field labor as required, at no extra charge to Owner, to aid and assist the Construction Manager in checking location and grades of the work as set by the Contractor.

2. This shall include postponing parts of the Work affected by survey check, moving materials and equipment that interfere with a clear line of sight between horizontal control points and the construction work.

3. The Contractor is not to assume that Construction Manager’s check substitutes or complements the Contractor’s required field quality control procedures.

D. The Contractor's registered land surveyor shall check the line and grade of the slab or footing concrete forms prior to the first slab or footing pour at each structure and building.

1.05 SUBMITTALS
A. Comply with Section 01330.

B. Furnish Construction Manager with one (1) copy of all land surveyor notes, calculations, sketches and drawings within 48 hours after completion of each survey task.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION

3.01 PROJECT SURVEY REQUIREMENTS
A. As part of the bid price for the construction of the improvements provide and be responsible for the layout of all work specified in the contract.

B. Provide necessary surveys, field staking, and positioning for the construction of all components at the proper alignment, elevations, grades, and positions, as indicated on the Drawings and as required for the proper operation and function.

C. Stake the work limits and right-of-way lines prior to the start of sitework.

D. Lay out work, including structures and pipelines, and be solely responsible for executing the Work in accordance with the lines and grades indicated.

3.02 RECORD DOCUMENTS
A. Prepare, maintain and submit Record Documents as specified in Section 01780. The Contractor’s land surveyor is to affix his signature and registration number to applicable record drawings certifying the accuracy of lines and grades shown.

B. Submit survey record drawings before final completion as specified in Section 01770.

END OF SECTION

Page 733 of 2338 ends

West Yost – March 2023 01326 - 1 City of Ukiah
592-50-22-14 Photographs Thickening and Dewatering
Improvements
SECTION 01326

PHOTOGRAPHS
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Photographs required before, during and after construction to provide record of site conditions, construction progress, as-built features and significant planned/unplanned events.

1.02 PHOTOGRAPHY
A. Employ a competent professional photographer to record this important factual information.

B. Digital Camera

1. Single lens reflex design

2. 24 mega pixels or greater

3. Nikon D7500 or equal
C. Prepare color photographs, in both print and digital file format, as directed by the Construction Manager. All electronic files are to be furnished in jpeg format and stored on a flash drive.

PART 2 - PRODUCTS

2.01 DELIVERABLE PRODUCTS
A. Provide electronic files, with 8-1/2" x 11" color printed page with thumbnail views and file name identification for each picture.

B. Compile digital images on flash drive and provide with a descriptive index of the images.

C. Index printed pages chronologically and provide in a three-ring binder.

D. Label flash drive’s and protect in an individual plastic case.

PART 3 - EXECUTION

3.01 PRE-CONSTRUCTION PHOTOGRAPHS
A. Provide one hundred (100) preconstruction photographs prior to commencement of Work on the sites.

B. Take at locations to be designated by the Construction Manager.

C. Submit prior to beginning construction.

3.02 DURING CONSTRUCTION PHOTOGRAPHS
A. Provide construction color photographs showing the progress of the Work.

B. Take photos of all Work prior to being buried or covered, including piping, fittings, transitions, tie-ins and valves.

C. Take photos of any significant planned or unplanned events.

Page 734 of 2338 ends

West Yost – March 2023 01326 - 2 City of Ukiah
592-50-22-14 Photographs Thickening and Dewatering
Improvements
D. Take photos from the same four locations at monthly intervals to record progress of work from same vantage points. These vantage points will be determined by the Construction Manager.

E. For pipeline projects, take photos at a maximum of one hundred (100) ft intervals.

F. Take a minimum of forty-eight (48) photographs every month during construction. Submit no more than two hundred (200) photographs each month.

G. Submit photos with each month’s Application for Payment.

3.03 AERIAL PHOTOGRAPHS
A. Aerial photographs shall be taken by a professional aerial photographer service approved by the Construction Manager every three months. Aerial photographs must be taken (1) prior to moving facilities onsite or starting construction; and (2) following the completion of all.

B. Aerial photographs shall be by aerial camera with forward motion compensation.

C. Aerial photographs shall provide coverage of the complete project site in an assembled mosaic.

D. Take aerial photographs at the same altitude.

3.04 POST-CONSTRUCTION PHOTOGRAPHS
A. Upon acceptance of the Work, provide one hundred (100) photographs of the Work where directed by the Construction Manager.

B. Submit photographs as part of Contract Closeout.

END OF SECTION

Page 735 of 2338 ends

West Yost – March 2023 01330 - 1 City of Ukiah
592-50-22-14 Submittals Thickening and Dewatering
Improvements
SECTION 01330

SUBMITTALS
PART 1 - GENERAL

1.01 SUMMARY
A. Requirements for the submittal of information that will enable determination of whether the Contractor’s proposed materials, equipment or methods of work are in general conformance to the design concept and in compliance with the Contract Documents.

B. Furnish drawings, specifications, descriptive data, certificates, samples, test results, methods, schedules, manufacturer's installation instructions and other information as indicated.

1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section

1. Section 01999 – Reference Forms

1.03 CONTRACTOR’S RESPONSIBILITIES
A. Contractor shall be responsible for the accuracy and completeness of the information contained in each submittal and shall assure that the materials and equipment incorporated into the Work, or the methods of performing the Work shall be as described in the accepted submittals.

B. Verify that all features of all products conform to the specified requirements. Submittal documents shall be clearly edited to indicate only those items, models, or series of equipment that are being submitted for review. Extraneous materials shall be crossed out or otherwise obliterated.

C. Coordinate submittals among subcontractors and suppliers. Ensure that there is no conflict with other submittals and notify the Engineer in each case where his submittal may affect the work of another contractor or the Owner, including those submittals complying with unit responsibility requirements specified in applicable technical sections.

D. Coordinate submittals with the Work so that work will not be delayed. Coordinate and schedule different categories of submittals, so that one will not be delayed for lack of coordination with another. No extension of time will be allowed because of failure to properly schedule submittals.

E. Do not proceed with work related to a submittal until the submittal process is complete and the submittal has received a response "No Exceptions Taken" or "Make Corrections Noted."
F. Certify on each submittal document that the Contractor has reviewed the submittal, verified field conditions, and complied with the contract documents.

1. Include a copy of the specification section with addendum updates, all referenced and applicable sections, and each paragraph check-marked to indicate specification compliance or marked to indicate requested deviations from specification requirements.
a. Use check marks (✓) to denote full compliance with a paragraph as a whole.

Page 736 of 2338 ends

West Yost – March 2023 01330 - 2 City of Ukiah
592-50-22-14 Submittals Thickening and Dewatering
Improvements
b. If deviations from the specifications are indicated and, therefore requested by the Contractor, underline each deviation and denote by a number in the margin to the right of the identified paragraph.
c. The remaining portions of the paragraph not underlined will signify compliance on the part of the Contractor with the specifications. d. Include a detailed, written justification for each deviation.

2. Failure to comply with this paragraph is sufficient cause to reject the entire submittal.

1.04 REVIEW COSTS
A. The Owner’s cost for review of submittals for the same proposed materials, equipment or work will be apportioned as follows:

1. The cost of review of the initial submittal and the first revised submittal will be borne by the Owner.

2. The cost to review all additional revised submittals after the first revised submittal will be charged to the Contractor. The cost of review shall include, without limitation, administrative, design and engineering activities directly related to review of submittals.

1.05 SUBMITTAL INDEX
A. Within 30 days of the Notice to proceed, submit a list, by specification section, of all submittals to be submitted.

B. Update and resubmit the submittal index on a monthly basis where additional submittals are identified, or as necessary

1.06 CATEGORIES OF SUBMITTALS
A. General

1. Submittals fall into two general categories;
a. Submittals for review and comment require action by the Engineer. b. Submittals that are primarily for information only do not require Engineer’s approval.

B. Submittals for Review and Comment

1. Transmit submittals for review and comment to the Engineer. The Engineer will review the submittal for compliance with the Contract requirements and will provide written comments regarding acceptability.

C. Submittals for Information Only

1. Where specified, furnish submittals to the Engineer for information only. The Engineer may, at the Engineer’s option, review and comment on any product data.

2. Incomplete or inadequate product data will be returned to the Contractor for resubmittal.

1.07 TRANSMITTAL PROCEDURES
A. General

1. Transmit submittals regarding material and equipment under cover of a Shop Drawing/Transmittal Form. See Section 01999.

Page 737 of 2338 ends

West Yost – March 2023 01330 - 3 City of Ukiah
592-50-22-14 Submittals Thickening and Dewatering
Improvements

2. Use a separate form for each specific item, class of material, equipment, and items specified in separate, discrete sections, for which the submittal is required.

3. Identify submittal documents common to more than one piece of equipment with all the appropriate equipment numbers.

4. Make submittals for various items with a single form when the items taken together constitute a manufacturer's package or are so functionally related that expediency indicates checking or review of the group or package as a whole.

5. Assign a unique sequential number on the transmittal form accompanying each item submitted.
a. Use the following format for original submittal numbers: "XXX"; where "XXX" is the sequential number assigned by the Contractor. b. Use the following format for resubmittals: "XXX-Y"; where "XXX" is the originally assigned submittal number and "Y" is a sequential letter assigned for resubmittals, i.e., A, B, or C being the 1st, 2nd, and 3rd resubmittals, respectively. Submittal 25B, for example, is the second resubmittal of submittal 25.

B. Electronic Submittals

1. Electronic submittals are preferred except as otherwise indicated.

2. Prepare electronic submittals and Shop Drawings in electronic (*.pdf) format including half-sized and full-sized drawings, catalog information and other required submittal information.

3. Break down submittals that are larger than 10 megabytes into smaller sections, using logical division points to create sections.

4. Electronically bookmark electronic submittals greater than 30 pages in length by major submittal section to facilitate ease of navigation.

C. Paper copy submittals are an acceptable alternative to electronic submittals if the Contractor demonstrates, to the satisfaction of the Engineer that electronic submittals presents a hardship.

D. Deviation from Contract

1. If the Contractor proposes to provide material, equipment, or method of work that deviates from the project manual, so indicate under "Proposed Deviations" on the transmittal form accompanying the submittal copies.

E. Submittal Completeness

1. Submittals that do not have all the information required to be submitted, including deviations, are not acceptable and will be returned without review.

1.08 SUBMITTAL CONTENT
A. Prepare submittals in compliance with individual Specification Sections and as indicated herein.

B. Shop Drawings:

1. Develop project-specific, scaled drawings to fully identify materials and products that will be provided and their relationship to other products that will be furnished and installed.

2. Do not utilize reproductions of the Contract Documents as the basis for the submittal.

3. Identify products, assemblies, equipment and systems.

Page 738 of 2338 ends

West Yost – March 2023 01330 - 4 City of Ukiah
592-50-22-14 Submittals Thickening and Dewatering
Improvements

4. Provide equipment identification numbers or tag numbers, wiring diagrams, and setting diagrams.

5. Identify critical dimensions.

C. Product Data:

1. Provide information necessary to demonstrate conformance with the specified requirements. Include performance curves, specifications, and wiring diagrams.

2. Product data may consist of manufacturer’s standard catalog information and data sheets, marked to indicate the specific products that will be provided.

3. Provide supplemental information as necessary to fully demonstrate how products will be modified from the manufacture’s standard products to meet the specification requirements.

D. Manufacturer’s Instructions: Written or published information that establishes the manufacturer’s recommendations, guidelines and procedures for handling and installation of products, equipment and assemblies.

E. Samples: Mount, display or package samples in a manner that will facilitate review and establish workmanship and quality of materials.

1.09 SUBMITTAL REQUIREMENTS
A. When the Contract Documents require a submittal, submit the specified information as follows:

1. Submittals for Review and Comment:
a. Electronic Submittal: Submit one electronic (*.pdf) submittal. b. Paper Copy Submittal: If paper copy submittals are acceptable to the Engineer, submit four (4) copies of submitted information plus one reproducible original for review unless otherwise specified.

2. Submittals for Information Only:
a. Electronic Submittal: Submit one electronic (*.pdf) submittal. b. Paper Copy Submittal: If paper copy submittals are acceptable to the Engineer, submit four (4) copies of submittal information for review, unless otherwise specified.

1.10 REVIEW PROCEDURE
A. General

1. The Engineer will review submittals within the processing time identified in paragraph “Processing Time” and return:
a. Electronic Submittal – a signed submittal response document, in (*.pdf) format.
b. Paper Copy Submittal – Two marked up copies of the submitted copies.

The reproducible original will be retained by the Engineer.

B. Submittals for Review and Comment

1. The returned submittal will indicate one of the following actions:
a. "NO EXCEPTIONS TAKEN" – The material, equipment or work method complies with the project manual.
b. "MAKE CORRECTIONS NOTED" – Limited corrections are required. 1) Provide a corrected copy where:

Page 739 of 2338 ends

West Yost – March 2023 01330 - 5 City of Ukiah
592-50-22-14 Submittals Thickening and Dewatering
Improvements
a) The information is to be included in the O&M data.
b) If requested by the Engineer.
c. "AMEND AND RESUBMIT" – The submittal is insufficient or contains incorrect data.
d. "REJECTED – SEE REMARKS" – The material, equipment, or work method does not comply with the project manual. Submittals with deviations that have not been identified clearly may be rejected.

2. For submittals marked "NO EXCEPTIONS TAKEN" or "MAKE CORRECTIONS NOTED.
a. The Contractor may begin implementing the work method or incorporating the material and equipment covered by the submittal in accordance with any noted corrections.

3. For submittals marked "AMEND AND RESUBMIT" or "REJECTED – SEE REMARKS"
a. Contractor shall provide a typed letter responding to each of the Engineer’s review comments with each resubmittal.
b. Except at its own risk, the Contractor shall not undertake the work covered by such submittals until a new submittal is submitted and returned marked either "NO EXCEPTIONS TAKEN" or "MAKE CORRECTIONS NOTED." C. Submittals for Information Only

1. The returned submittal will indicate ACCEPTED FOR RECORD” if the submittal is complete and adequate.

2. Engineer may return comments on information submittals to identify concerns with what was submitted, in such case, Contractor shall address concerns in writing and return a revised submittal.

1.11 PROCESSING TIME
A. Prepare submittals and transmit to Engineer for review in sufficient time to allow Engineer’s review; manufacture, fabrication or assembly of materials and systems; and shipping of material to the site in time for installation in accordance with the Contractor’s schedule.

B. Engineer’s time for review will begin upon receipt of a complete and comprehensive submittal containing all required information.

C. Engineer will review submitted information and transmit a response to Contractor within 30 days after receipt, subject to the following:

1. In some instances, review times for specific submittals may be modified by the individual specification Section.

2. Resubmittals will be subject to the same review time.

D. No adjustment of Contract Time or Contract Price will be allowed due to delays in the progress of the Work that are caused by rejected submittals and subsequent resubmittals.

1.12 EFFECT OF REVIEW OF CONTRACTOR’S SUBMITTALS
A. The purpose of submittals is to demonstrate how Contractor intends to conform to the Contract Documents and design concepts. Engineer is entitled to rely upon the accuracy and completeness of designs, calculations, or certifications made by licensed professionals whether or not a stamp or seal is required by the Contract Documents.

B. The review procedure is based on the Contractor's guarantee that all features and characteristics not requiring submittals conform to the contract documents.

Page 740 of 2338 ends

West Yost – March 2023 01330 - 6 City of Ukiah
592-50-22-14 Submittals Thickening and Dewatering
Improvements
C. Review of contract drawings, methods of work, or information regarding materials or equipment the Contractor proposes to provide, does not relieve the Contractor of its responsibility for

1. Fulfilling the requirements of the Contract,

2. Proper operation of the equipment,

3. Correction of defective work
D. Reviews shall not be regarded as an assumption of risk or liability by the Engineer or the Owner.

E. A mark of "NO EXCEPTIONS TAKEN" or "MAKE CORRECTIONS NOTED" means that the Owner has no objection to the Contractor, upon its own responsibility, using the plan or method of work proposed, or providing the materials or equipment proposed.

F. The Engineer's review of shop drawings, samples, or test procedures will be only for conformance with design concepts and for compliance with information given in Contract Documents. The Engineer's review does not extend to:

1. Accuracy of dimensions, quantities, or performance of equipment and systems designed by Contractor.

2. Contractor's means, methods, techniques, sequences, or procedures except when specified, indicated on the Drawings, or required by Contract Documents.

3. Safety precautions or programs related to safety which shall remain the sole responsibility of the Contractor.

G. Review of a separate item does not indicate approval of the assembly in which the item functions.

1.13 SUBSTITUTIONS OR “OR EQUAL” ITEMS
A. Named or Sole Source Times

1. Whenever materials or equipment are specified or described in the Contract Documents by using the name of a proprietary item or the name of a particular Supplier, the naming of the item is intended to establish the type, function, and quality required.

2. Unless the name designated a “sole source” and/or is followed by words indicating that no substitution is permitted, materials, or equipment of other Suppliers may be accepted by Engineer if sufficient information is submitted by Contractor to allow Engineer to determine that the material or equipment proposed is equivalent or equal to that named.

B. Initiating Substitution Request

1. To propose to furnish or use a substitute item of material or equipment, Contractor shall use the Proposed “Or Equal” Substitution Submittal Transmittal Form found in Section 01999.

2. Submit the Substitution Submittal form to Engineer for acceptance, certifying that the proposed substitute will perform adequately the functions and achieve the results called for by the general design, be similar and of equal substance to that specified and be suited to the same use as that specified.

3. State that the evaluation and acceptance of the proposed substitute will not prejudice Contractor’s achievement of Substantial Completion on time, whether acceptance of the substitute for use in the Work will require:

Page 741 of 2338 ends

West Yost – March 2023 01330 - 7 City of Ukiah
592-50-22-14 Submittals Thickening and Dewatering
Improvements
a. A change in any of the Contract Documents (or in the provisions of any other direct contract with Owner for Work on the Project) to adapt the design to the proposed substitute.
b. Incorporation or use of the substitute in connection with the Work is subject to payment of any license fee or royalty.

4. Identify all variations of the proposed substitution from that specified

5. Identify available maintenance, repair, and replacement service

6. Provide an itemized estimate of all costs that will result directly or indirectly from acceptance of such substitute, including costs of redesign and claims of other contractors affected by the resulting change

7. The Owner or Engineer may require Contractor to furnish at Contractor’s expense additional data about the proposed substitute.

8. If a specific means, method, technique, sequence or procedure of construction is indicated in or required by the Contract Documents, Contractor may propose to furnish or utilize a substitute means, method, sequence, technique or procedure of construction. Submit sufficient information to allow Engineer to determine that the proposed substitution is equivalent to that indicated or required by the Contract Documents.

C. Review Procedure

1. The procedure for review of substitutions by Engineer will be similar to that provided in this Section.

2. Requests for substitutions may only be submitted by the Contractor.

3. All requests for substitution shall be submitted within thirty (30) calendar days after the date of Notice to Proceed unless the Owner has agreed in writing to a later submittal date and the Contractor agrees to comply with all conditions of the Owner for the late submittal.

4. The Owner’s agreement to a later submittal date shall not be construed as favorable review or acceptance of the proposed “or equal” substitution.

5. The Engineer will respond to all requests for substitutions within thirty (30) days following receipt of an acceptable substitution submittal, unless the Engineer notifies the Contractor within fourteen (14) days after receipt of the proposed “or equal” substitution submittal that more time is needed to complete a thorough review.

6. The Engineer and Owner will be the sole judge of acceptability, and no proposed “or equal” substitution item or service will be ordered, installed or utilized without Engineer’s prior written acceptance that will be evidenced by either a Change Order or an accepted Shop Drawing.

7. As a condition of acceptance, the Owner may require Contractor to furnish, at Contractor’s expense, a special performance guarantee or other surety with respect to a proposed “or equal” substitution item or service.

D. Modification due to Substitutions

1. All costs for redesign required by the implementation of the proposed substitute shall be borne by the Contractor.

2. All costs associated with incorporating a substitution into the project shall be borne by the Contractor.

END OF SECTION

Page 742 of 2338 ends

West Yost – March 2023 01330 - 8 City of Ukiah
592-50-22-14 Submittals Thickening and Dewatering
Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 743 of 2338 ends

West Yost – March 2023 01450 - 1 City of Ukiah
592-50-22-14 Testing and Inspections Thickening and Dewatering Improvements
SECTION 01450

TESTING AND INSPECTIONS
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Tests and inspections and allocation of responsibilities associated with tests and inspections.

B. The detailed tests and inspections required to be performed by the Contractor are specified in the individual Sections of Divisions 2 through 16.

1.02 OWNER’S TESTING AGENCY
A. Owner will employ and pay for testing conducted to confirm compliance with the requirements of the Contract. Testing may be on-site or off-site.

B. Owner’s Testing Agency will perform tests, inspections, and sampling of the following work:

1. Earthwork, including collection and testing of representative material samples and compaction testing.

2. Concrete placement, reinforcement, ingredients and quality control.

3. Masonry placement, reinforcement, ingredients and quality control.

4. Structural steel.

5. Fire Proofing, density sampling and thickness inspection.

C. The Owner’s employment of the Testing Agency does not relieve the Contractor of his obligations to perform the work in accordance with Contract requirements nor to retain their own testing firm for quality control.

1.03 QUALITY ASSURANCE
A. Qualifications of Testing Agents: Agencies, bureaus, or laboratories shall be acceptable to the Engineer and shall meet the requirements ASTM E329.

B. Failure of Materials and Equipment Tested or Inspected:

1. The Contractor shall be charged for retesting and reinspection resulting from the Contractor’s noncompliance with the Contract as evidenced by tests and inspections by the Owner’s Testing Agency.

2. The Owner will backcharge the Contractor for costs incurred in the event the Contractor’s provides inadequate quality control or material requires excessive repeated testing by the Owner’s Testing Agency.

1.04 TESTING AGENCY’S DUTIES
A. Perform required inspecting, sampling and testing of materials and methods of construction.

1. Comply with specified standards, other recognized authorities as specified.

2. Check for compliance with Contract Documents.

B. Promptly notify the Engineer and the Contractor of observed irregularities or deficiencies in the work.

Page 744 of 2338 ends

West Yost – March 2023 01450 - 2 City of Ukiah
592-50-22-14 Testing and Inspections Thickening and Dewatering Improvements
C. Promptly submit written reports to the Contractor and to Engineer. Include:

1. Date of test, inspection or sampling; project title and number; testing agency’s name and address; name and signature of inspector.

2. Record of temperature and weather, identification of applicable specification Section, type of inspection or test performed, and reference to applicable standards and codes.

3. Location of tests; sample locations; test results; and observation regarding compliance with Contract Documents.

D. The testing agency is not authorized to release, revoke, alter or enlarge on the requirements of the Contract Documents, approve or accept any portion of the work, or perform any of the Contractor’s duties.

1.05 CONTRACTOR’S RESPONSIBILITIES
A. Initiate and coordinate tests and inspections required by Contract Documents and public authorities having jurisdiction of the work.

B. Notify the Owner’s Testing Agency through the Owner’s Representative a sufficient time in advance (but no less than 48 hours) of the manufacture of materials to be supplied which, by requirements of the Contract Documents, must be tested at the source of supply so that the Laboratory may arrange for testing.

C. When changes of construction schedule are necessary during construction, coordinate all such changes with the Owner’s Testing Agency as required.

D. When the Owner’s Testing Agency is ready to test according to the established schedule, but is prevented from testing or taking specimens due to incompleteness of the work, all extra charges for testing attributable to the delay may be backcharged to the Contractor and shall not be borne by the Owner.

E. Provide access, facilities, tools, and labor necessary for duties to be performed at the site by the Owner’s Testing Agency and Inspector, including furnishing ladders, hoisting, lighting, water supply and like services.

F. Provide and maintain, for the sole use of the Owner’s Testing Agency, adequate facilities for the safe storage and proper curing of concrete test cylinders on the Project site as required by ASTM C31.

G. Furnish and deliver samples of materials to be tested at no extra cost to Owner. Test samples will be selected by the Inspector or Owner’s Testing Agency and not by the Contractor.

H. Reports:

1. Furnish copies of each test and inspection report, signed and certified by the Contractor’s Testing Agency Supervising Engineer to the Contractor and to the Engineer.

2. Within 48 hours, process and distribute the required copies of test reports and related instructions to assure necessary retesting and replacement of materials with the least possible delay in progress of the work.

I. Records:

1. Maintain correct records on an appropriate form for all inspections and tests performed, instructions received from the Owner or testing agency, and actions taken as a result of those instructions.

2. These records shall include evidence that the required inspections or tests have been performed (including type and number of inspections or tests, nature of

Page 745 of 2338 ends

West Yost – March 2023 01450 - 3 City of Ukiah
592-50-22-14 Testing and Inspections Thickening and Dewatering Improvements
defects, causes for rejection, etc.), proposed or directed remedial action, and corrective action taken.

3. Document inspections and tests as required by each Section of the Specifications.

J. If laws, ordinances, rules, regulations, or orders of public agency having jurisdiction require work to be inspected, tested or approved by some authority other than the Owner, or Contractor, the Contractor shall give required notices and make arrangements, deliver to the Owner the certificates of inspection, test, or approval of such public agency, and pay costs therefore unless otherwise provided in the Contract Documents.

K. Completed Work: Should the Owner require tests and inspections for work completed before final acceptance of entire work, furnish necessary facilities, labor, and materials to uncover or remove work in question to extent necessary.

1. If such work is found defective due to fault of the Contractor, the Contractor shall defray expense of removal, test, and inspections, and satisfactory reconstruction.

Time extension may not be granted.

2. If such work is found to conform to requirements of the Contract, the Contractor shall be reimbursed by the Owner for facilities, labor and materials required for removal, and costs of satisfactory reconstruction in accordance with Contract amounts for extra work. Reasonable time extension shall be granted.

1.06 TEST PROCEDURES
A. Testing:

1. Owner’s Testing Agency will perform tests according to method(s) of test specified in these Specifications.

2. If no procedure or test method is specified, testing shall conform to material specification references unless otherwise directed by the Owner.

3. The Owner’s Testing Agency will tag, seal, label, record, or otherwise suitably identify the materials for testing. No materials shall be used in the work until the test reports are submitted and approved, excepting only the materials specified to be placed or installed prior to testing.

B. Retesting:

1. Repeat applicable tests at specified intervals, when:
a. The source of supply is changed.
b. The characteristics of the materials change or vary. c. Unsatisfactory test results are received.

2. Quantity and nature of additional testing, if required, will be determined by the Owner.

3. Additional tests shall be taken in the presence of the Engineer.

4. Proof of non-compliance will make the Contractor liable for any corrective action which the Owner feels is prudent, including complete removal and replacement of defective materials.

5. Nothing contained herein is intended to imply that the Contractor does not have the right to have tests performed on any material at any time for his own information and job control so long as the Owner does not assume responsibility for costs or for giving them consideration when appraising quality of materials.

Page 746 of 2338 ends

West Yost – March 2023 01450 - 4 City of Ukiah
592-50-22-14 Testing and Inspections Thickening and Dewatering Improvements

1.07 PAYMENT FOR TESTING
A. Initial Services:

1. The Owner will pay for initial testing services requested by the Owner.

2. When initial tests indicate non-compliance with the Contract Documents, the costs of initial tests associated with that non-compliance will be deducted by the Owner from the Contract Sum.

B. When initial tests indicate non-compliance with the Contract Documents, subsequent retesting occasioned by the non-compliance shall be performed by the same testing agency, and costs thereof will be deducted by the Owner from the Contract Sum.

C. Reimburse the Owner all or any part, as the Owner may deem just and proper, of the inspection costs incurred by the Owner due to:

1. Failure of materials to pass initial tests.

2. Contractor’s failure to complete the work within the Contract time, and any previously authorized extensions thereof.

3. Claims between separate contractors.

4. Covering of work before the required inspections or tests are performed.

5. Additional inspections required for Contractor’s correction of defective work.

6. Overtime costs for acceleration of work done for Contractor’s convenience.

1.08 CONTRACTOR’S CONVENIENCE TESTING
A. Inspection and testing performed exclusively for the Contractor’s convenience shall be the sole responsibility of the Contractor.

1.09 REQUEST FOR TESTING PROCEDURES
A. Testing will be performed as ordered by the Owner’s Representative. Contractor shall follow the Owner’s Representative’s procedures for requests for tests and inspections.

Procedure are as follows:

1. Fill out the Request for Testing form provided by the Owner’s Representative.

2. Describe the test and the date the test is required. The request will be given to the Owner’s Representative for approval.

3. Submit the Request for Test at least forty-eight (48) hours in advance of the needed date for the test.

4. The Owner’s Representative will request the services from the testing agency.

5. The testing agency will be provided a copy of the testing request which will be completed by the testing firm indicating the services provided.

6. Provide a testing schedule which will be reviewed each week for the following week’s work.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION (NOT USED)

END OF SECTION

Page 747 of 2338 ends

West Yost – March 2023 01500 - 1 City of Ukiah
592-50-22-14 Construction Facilities and Utilities Thickening and Dewatering Improvements
SECTION 01500

CONSTRUCTION FACILITIES AND UTILITIES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Requirements for Contractor’s temporary facilities at the job site and for the prosecution of the Work.

1.02 EASEMENTS
A. Temporary construction easements and permanent easements have been established by the Owner.

B. Contractor shall confine equipment, materials storage and all construction activities within the temporary easements shown.

1.03 CONTRACTOR’S CONSTRUCTION OFFICE
A. Maintain a suitable office at the site.

B. Temporary office will be considered as the headquarters of the Contractor’s representative whom is authorized to receive drawings, instructions, or other communication or articles.

Any communication given to the representative or delivered at Contractor’s temporary office at the site in his absence is deemed to have been delivered to the Contractor.

C. Maintain copies of the Drawings, Specifications, and other Contract documents at Contractor’s temporary office at the site and make these available for use at all times.

1.04 STAGING AREA
A. Before starting the work, submit a proposed plan and layout for all temporary offices, sanitary facilities, storage areas, temporary water service and distribution, and temporary power service and distribution.

B. Erect temporary security fence as appropriate. Contractor is responsible for the security of the staging area. Owner and Engineer do not take any responsibility for missing or damaged equipment, tools or personal belongings.

C. Store only those materials and equipment that are related to the construction within the staging area.

1.05 FENCES
A. Erect temporary fences at the boundary of construction easements and in locations indicated on the Drawings to protect existing wetlands and other environmentally sensitive areas.

B. When existing fences require temporary removal, and these fences are required to restrain animals and stock, erect fences to prevent animals from escaping. Contractor shall be responsible for loss, injury or damage that results from failure to restrain animals and stock.

C. When working in open areas where animals and stock are maintained, provide adequate temporary fencing around open excavations to prevent injury to animals and stock.

Page 748 of 2338 ends

West Yost – March 2023 01500 - 2 City of Ukiah
592-50-22-14 Construction Facilities and Utilities Thickening and Dewatering Improvements

1.06 TEMPORARY ACCESS ROADS
A. Construct temporary access roads where access to various portions of the site is otherwise unavailable.

1. Construct a point of access that will allow Contractor to gain access onto the property and within the temporary construction easement.

2. At the conclusion of the work, remove all temporary facilities, re-grade drainage ditches and return the area to its original condition.

3. Contractor is responsible for securing the property until fencing is returned to original conditions and all temporary fences, culverts and backfill material has been removed and the area returned to its original condition.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION

3.01 TEMPORARY ELECTRIC POWER
A. Contractor shall make provisions to obtain temporary electric power for use during construction. The Contractor shall be responsible for obtaining a source of electric power for construction.

B. Cost of electric power shall be borne by the Contractor.

C. The temporary electric power installation shall meet the construction safety requirements of OSHA, state, and other governing agencies.

3.02 TEMPORARY TELEPHONE SERVICE
A. Provide telephone service at the construction site office. Cellular telephone service is acceptable.

B. The Contractor is not permitted to use the Owner's telephone service.

3.03 TEMPORARY SANITARY FACILITIES
A. Provide toilet and wash-up facilities for the construction work force at the site of work.

B. Facilities shall comply with applicable laws, ordinances, and regulations pertaining to the public health and sanitation of construction field offices, dwellings, and camps.

3.04 TEMPORARY WATER SUPPLY
A. Use potable water for soil moisture conditioning, pipeline pressure testing and other construction uses.

B. Obtain approvals and authorizations from the owner of the public water distribution system for use of water and pay all fees associated with consumption of the potable water.

1. Make the necessary connections to the public water supply and install all conveyance piping and truck filling facilities that are required to transport water for the work.

2. Temporarily install valves, flow meters, air gaps, backflow preventers and other appurtenances required by the owner of the public water distribution system to maintain the integrity of the existing water systems.

3. Remove temporary water facilities when no longer needed.

END OF SECTION

Page 749 of 2338 ends

West Yost – March 2023 01560 - 1 City of Ukiah
592-50-22-14 Environmental Controls Thickening and Dewatering Improvements
SECTION 01560

ENVIRONMENTAL CONTROLS
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Environmental controls to be maintained during construction.

1.02 APPLICABLE LAWS AND REGULATIONS
A. Comply with applicable Federal, State and local environmental, health and safety laws and regulations.

1.03 REFERENCED SECTIONS
A. The following Section is referenced in this Section

1. Section 01330 – Submittals

2. Section 02241 – Control of Water

1.04 SUBMITTALS
A. Comply with Section 01330.

B. Copies of permits and approvals for construction as required by Laws and Regulations and governing agencies.

C. Plan for disposal of waste materials and intended haul routes.

D. Dust control plan.

E. Updated Erosion and Sediment Control Plan meeting the requirements shown on the Drawings and the permit.

1.05 SITE CLEANLINESS
A. Maintain work sites, staging areas, public roadways and private property clean and free of rubbish and debris. Remove materials and equipment from the site when they are no longer necessary for the Work.

B. Keep buildings that are occupied by the Contractor clear of refuse and debris and in a reasonably neat condition.

C. Upon completion of the work and before final acceptance, clear work areas of equipment, unused materials, and rubbish to present a clean and neat appearance.

1.06 HAZARDOUS MATERIALS
A. Handle paints, solvents, and other construction materials with care to prevent contaminants from entering into sewers, storm drains, surface waters, or soils.

B. Develop an emergency response plan for spills of sewage, paint, oil, and other hazardous materials.

C. In the event of a spill, immediately notify the ENGINEER, OWNER and jurisdictional agencies. Take proper measures to clean up spills of hazardous materials in accordance with the emergency response plan, State, Federal, and local regulations and manufacturer’s recommendations.

Page 750 of 2338 ends

West Yost – March 2023 01560 - 2 City of Ukiah
592-50-22-14 Environmental Controls Thickening and Dewatering Improvements

1.07 AIR POLLUTION CONTROL
A. Contractor shall not discharge smoke, dust, and other contaminants into the atmosphere that violate the air pollution regulations for the area.

B. Do not idle internal combustion engines for prolonged periods of time.

C. Minimize dust nuisance by cleaning, sweeping and sprinkling work areas, exposed soil, and haul roads with water or by powered brushing.

1.08 NOISE CONTROL
A. Comply with local controls and noise level rules, regulations, and ordinances which apply to any work performed pursuant to the Contract. If the requirements of this Section are more restrictive than those of the local regulations, the requirements of this Section shall govern.

B. Minimize noise from construction equipment.

1. Whenever possible, utilize construction equipment powered by electric motors rather than diesel or gas driven engines.

2. Locate construction equipment such as compressors and generators as far from sensitive receptors as feasibly possible. Erect temporary sound blankets around noisy equipment to mitigate noise propagation.

3. Equip internal combustion engines with a muffler and provide a noise enclosure around stationary equipment such as engine-driven generators, welders, compressors, and pumps. Use “quiet package” and “hush” equipment.

4. Do not start-up machines or equipment prior to or after the specified construction work hours.

C. Noise Complaints: Should a specific noise impact complaint occur, Engineer has the prerogative to direct Contractor to implement one of the following noise mitigation measures at Contractor’s expense:

1. Relocate stationary construction equipment away from the affected property.

2. Shut off idling equipment.

3. Reschedule construction operations to avoid periods of noise annoyance identified in the complaint.

4. Install temporary or portable acoustic barriers around stationary construction noise sources.

5. Operate electric powered equipment using utility power.

D. Amplified sounds such as telephone, loudspeakers, and other forms of loud communication that constitute a nuisance and potential disturbance shall not be used.

1.09 DIRT AND MUD CONTROL
A. Contractor is responsible for preventing dirt, mud, and debris from accumulating on streets, sidewalks, parking areas, or other paved surfaces and for maintaining the cleanliness of these areas.

1. Track Out: Clean vehicle tires of mud and dirt before exiting the site.

2. Cover all dump truck loads and other loads that may result in debris falling from the vehicle.

Page 751 of 2338 ends

West Yost – March 2023 01560 - 3 City of Ukiah
592-50-22-14 Environmental Controls Thickening and Dewatering Improvements

3. Sweeping Paved Areas:
a. Maintain cleanliness of paved areas used by the Contractor for the duration of the project.
b. Sweep paved areas that have been used since the previous cleaning on at least a weekly basis, or more frequently when directed by the Engineer.

Utilize regenerative air or vacuum pickup sweepers together with proper dust control methods to remove sediment, dust, dirt, and other matter from paved areas. Do not use excessive water resulting in mud on public streets.

1.10 TREE AND PLANT PROTECTION
A. Temporary tree protection

1. Carefully protect existing trees from damage by construction activities. Additional requirements for specific trees may be shown on the Plans or designated in the Contract Documents.

2. Every reasonable effort shall be made to avoid creating conditions adverse to the tree’s health.
a. The natural ground within the dripline of protected trees shall remain undisturbed.
b. The dripline area of protected trees shall be identified on the ground by a circle with a radius measurement from the trunk of the tree to the tip of its longest limb.
c. No limb shall be cut back in order to change the dripline measurement. d. The area within the dripline is a critical area of the tree’s root zone and defines the minimum protected area of each tree.
e. No vehicles, construction equipment, temporary buildings, supplies, materials or facilities shall be driven, parked, stockpiled or located within the dripline of protected trees.
f. No trees outside the construction limits shall be removed or damaged, unless authorized by the Construction Manager.

3. If a tree is damaged or destroyed by construction (other than those designated for removal), the Contractor shall replace it in species, size and grade with a healthy tree as directed by the Construction Manager. Where it is necessary to replace a tree damaged by construction, the Contractor shall bear all expenses required to establish the replacement tree and pay any tree removal fees.

B. Cultivated areas and other surface improvements:

1. Landscaped areas and other surface improvements which are damaged by actions of the Contractor shall be restored.

2. Minimize vegetation removal.

3. Areas shall not be cleared until construction activities require the work.

4. Erosion controls shall be in place prior to clearing and grading activities.

C. Other areas to be protected:

1. Environmentally sensitive areas are indicated on the Drawings.

2. Erect a protective fence around the area to be protected. a. The protective fence shall be 4 feet tall, international orange high density polyethylene resin (Visi-Barrier or equal).

Page 752 of 2338 ends

West Yost – March 2023 01560 - 4 City of Ukiah
592-50-22-14 Environmental Controls Thickening and Dewatering Improvements
b. Posts shall be heavy duty steel T-posts with corrosion resistant coating spaced at 5 feet on centers.

1.11 OIL SPILL PROTECTION AND CONTROL
A. Store fuel and oil in accordance with requirements of the Uniform Fire Code and applicable National Fire Protection Association standards.

B. Assume responsibility for the prevention, containment, and cleanup of spilled oil, fuel, and other petroleum products used in the Contractor’s operations. Prevention, containment and cleanup costs shall be borne by the Contractor.

C. Periodically inspect fuel hoses, lubricating equipment, hydraulically operated equipment, oil drums, and other devices for drips, leaks or signs of damage. Maintain and properly store to prevent spills and vandalism.

D. Construct dikes around storage tanks, or locate tanks to prevent spills from escaping to surface waters or drainage ditches.

E. Remove oils on land using sand, clay, sawdust or other absorbent material and dispose in an acceptable manner. Store waste materials in drums or other leak proof containers after cleanup and during transport to disposal.

1.12 WATER POLLUTION CONTROL
A. Divert sanitary sewage and non-storm waste flow interfering with construction and requiring diversion to sanitary sewers. Do not cause or permit action to occur which would cause an overflow to existing waterway.

B. Prior to commencing excavation and construction, obtain Project Manager’s agreement with detailed plans showing procedures intended to handle and dispose of sewage, groundwater, and stormwater flow, including dewatering pump discharges.

C. Do not dispose of volatile wastes such as mineral spirits, oil, chemicals, or paint thinner in storm or sanitary drains. Disposal of wastes into streams or waterways is prohibited.

Provide acceptable containers for collection and disposal of waste materials, debris, and rubbish.

1.13 EROSION, SEDIMENT, AND FLOOD CONTROL
A. Provide, maintain, and operate temporary facilities to control erosion and sediment releases, and to protect the Work and existing facilities from flooding during construction period.

B. Comply with state and local requirements.

C. Comply with Section 02241.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION (NOT USED)

END OF SECTION

Page 753 of 2338 ends

West Yost – March 2023 01570 - 1 City of Ukiah
592-50-22-14 Storm Water Quality Control Thickening and Dewatering Improvements
SECTION 01570

STORM WATER QUALITY CONTROLS
PART 1 - GENERAL

1.01 SUMMARY
A. Requirements for the compliance with the General Permit for Discharges of Storm Water Associated with Construction Activity in the State of California.

1.02 REQUIREMENTS
A. Dischargers whose projects disturb 1 or more acres of soil or whose projects disturb less than 1 acre but are part of a larger common plan of development that in total disturbs 1 or more acres, are required to obtain coverage under the General Permit for Discharges of Storm Water Associated with Construction Activity Construction General Permit Order 2009-0009-DWQ adopted on September 2, 2009. Construction activity subject to this permit includes clearing, grading and disturbances to the ground such as stockpiling, or excavation.

B. The appropriate Regional Water Quality Control Board (RWQCB) enforces the General Permit. Coverage under a General Permit requires the electronic filing of all Permit Registration Documents (PRDs), Notices of Termination (NOT), changes of information, annual reporting and other compliance documents through the State Water Board’s Storm water Multi-Application and Report Tracking System (SMARTS) website.

C. Construction activity includes, but is not limited to: clearing, grading, demolition, excavation, construction of new structures, pipelines and reconstruction of existing facilities involving removal and replacement that results in soil disturbance. This includes construction access roads, staging areas, storage areas, stockpiles, and any off-site areas which receive run-off from the construction project such as discharge points into receiving waters.

D. While the City will be responsible to the RWQCB for compliance with the permit, the City will require the Contractor to provide the detailed planning and compliance activities required insofar as they would potentially affect the Contractor's methods and means of performing the Work.

E. If a violation of the permit is due to the Contractor's actions or inactions and a fine is assessed, the Contractor shall be responsible for the fine.

F. A copy of the Fact Sheet for the General Permit is available on the SWRCB website at:
http://www.swrcb.ca.gov/water_issues/programs/stormwater/ .

1.03 RESPONSIBILITIES
A. City of Ukiah’s Responsibilities

1. A City staff person will be designated the Legally Responsible Person (LRP) who will electronically file Permit Registration Documents (PRDs) prior to commencement of construction activity.

2. PRDs will be filed by the City but may be prepared by others. PRDs consist of:
a. Notice of Intent (NOI)
b. Risk Assessment
c. Site Map
d. Storm Water Pollution Prevention Plan (SWPPP)

Page 754 of 2338 ends

West Yost – March 2023 01570 - 2 City of Ukiah
592-50-22-14 Storm Water Quality Control Thickening and Dewatering Improvements
e. Annual Fee
f. Signed Certification Statement

3. A City staff person will be the Legally Responsible Person (LRP) who will electronically file the following documents which may be prepared by others:
a. Notices of Termination (NOT)
b. Changes of Information
c. Annual Reporting
d. Other Compliance Documents

4. City will pay fees associated with filing NOI and annual reports.

5. City will furnish the Contractor with base maps of a suitable scale in order to prepare required documents.

B. Contractor’s Responsibilities

1. Comply with the SWRCB, RWQCB, County, City and other local agency requirements regarding stormwater management, inspection and monitoring.

2. Be responsible for meeting the requirements of the General Permit except as specifically noted otherwise herein.

3. Submit all documents and reports in electronic format suitable for the City to upload to the SMARTS website.

4. Prepare a SWPPP and submit the SWPPP for City review at least 30 days prior to any soil disturbing construction. The SWPPP shall meet the following requirements:
a. SWPPP shall be prepared by a Qualified SWPPP Developer (QSD) as defined in Section VII of the General Permit.
b. The SWPPP and each amendment to the SWPPP must be signed by the QSD.
c. The Risk Level shall be determined by a QSD or QSP certified professional.
d. SWPPP shall meet the requirements of Section XIV of the General Permit and meet the following objectives:
1) All pollutants and their sources, including sources of sediment associated with construction, construction site erosion and all other activities associated with construction activity are controlled; 2) Where not otherwise required to be under a Regional Water Quality Control Board (RWQCB) permit, all non-stormwater discharges are identified and either eliminated, controlled, or treated;
3) Site BMPs are effective and result in the reduction or elimination of pollutants in stormwater discharges and authorized nonstormwater discharges from construction activity to the Best Available Technology/Best Control Technology (BAT/BCT)
standard;
4) Calculations and design details as well as BMP controls for site run-on are complete and correct.
5) Stabilization BMPs installed to reduce or eliminate pollutants after construction are completed.
6) Identify post-construction BMPs, which are those measures to be installed during construction that are intended to reduce or eliminate pollutants after construction is completed.

Page 755 of 2338 ends

West Yost – March 2023 01570 - 3 City of Ukiah
592-50-22-14 Storm Water Quality Control Thickening and Dewatering Improvements
7) Identify and provide methods to implement BMP inspection, visual monitoring, Rain Event Action Plan (REAP) and Construction Site Monitoring Program (CSMP) requirements to comply with the General Permit.
e. Amend and update the SWPPP whenever there is a change in construction or operations which may affect the discharge of pollutants to storm water.

5. Provide information and certification to the Engineer as necessary to complete the NOI.

6. Make the SWPPP available at the construction site during working hours, and make it available upon request by a State or Municipal worker.

7. Designate a Qualified SWPPP Practitioner (QSP)
a. Ensure all BMPs are implemented by a QSP.
b. QSP is responsible for non-storm water and storm water visual observations, sampling and analysis.
c. QSP shall meet the certification requirements of Section VII of the General Permit.

8. Install, construct, implement, monitor, maintain and remove upon completion all of the BMPs and other pollution prevention measures.

9. Implement the Rain Event Action Plan identified in the SWPPP 24 hours in advance of any the predicted precipitation event.

10. Implement the Construction Site Monitoring Plan (CSMP) developed in the SWPPP for the specific Risk Level of the project. Retain records of all monitoring information and copies of all reports and submit to the City.

11. Submit to the City all Non-Compliance reporting required by the General Permit including but not limited to:
a. Numeric Action Level (NAL) exceedances.
b. Numeric Effluent Limitation (NEL) Violation Report.
c. Self-reporting of any other discharge violations
d. Discharges which contain a hazardous substance in excess of reportable quantities established in 40 CFR §§ 117.3 and 302.4, unless a separate NPDES Permit has been issued to regulate those discharges.

12. Prepare the annual compliance report and submit to the City 15 days prior to September 1 of each year. Annual report shall comply with the requirements of Section XVI – Annual Reporting Requirements of the General Permit including but not limited to:
a. Sampling and analysis results including laboratory reports, analytical methods and reporting limits and chain of custody forms (Risk Levels 2 and 3);
b. Corrective actions and compliance activities, including those not implemented;
c. Violations of the General Permit;
d. Date, time, place, and name(s) of the inspector(s) for all sampling, inspections, and field measurement activities;
e. Visual observation and sample collection exception records; and f. Training documentation of all personnel responsible for General Permit compliance activities.

Page 756 of 2338 ends

West Yost – March 2023 01570 - 4 City of Ukiah
592-50-22-14 Storm Water Quality Control Thickening and Dewatering Improvements

13. Provide the Engineer the names and 24-hour phone numbers for parties responsible for implementing, monitoring, inspecting and maintaining the SWPPP.

14. Contractor shall be bound to the conditions on the Notice of Intent (NOI) that will be filed by the City and will be responsible for all costs associated with the implementation of the Plan including all fines, damages and job delays incurred due to failure to implement the requirements of the General Permit.

15. Notify the Engineer immediately following a request from any regulatory agency to enter, inspect, sample, monitor or otherwise access the Project Site or its records.

16. Take the proper actions to prevent stormwater coming into contact with contaminants and sediments from migrating offsite or entering storm sewer drainage systems. Take immediate action if directed by the Engineer or if the Contractor observes contaminants and/or sediments entering the storm drainage system, to prevent further stormwater from entering the system.

17. Provide information and certification to the Engineer as necessary to complete the NOT.
a. Only biodegradable wattles containing no plastic can remain on a site applying for a NOT. Wattles containing plastic netting (including plastic specified as photo-degradable) are considered “construction materials and waste” by the State and must be disposed of.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION (NOT USED)

END OF SECTION

Page 757 of 2338 ends

West Yost – March 2023 01600 - 1 City of Ukiah
592-50-22-14 Materials and Equipment Thickening and Dewatering Improvements
SECTION 01600

MATERIALS AND EQUIPMENT
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Materials, equipment and products incorporated into the work.

1.02 MATERIAL AND EQUIPMENT REQUIREMENTS
A. Specified in individual specification Sections in Divisions 2 through 16.

B. Specifications are minimum requirements and manufacturers’ standard products may require modifications to meet the specified requirements.

C. Provide products and equipment with all accessories, trim, finish, safety guards and other devices needed for a complete and operational installation.

D. Products to be supplied in quantity shall be the same product from a single source to provide standardization and interchangeability.

1.03 DEFINITIONS
A. Named Products: Items identified by manufacturer’s product name and model number as indicated in the manufacturer’s published product data.

B. Materials: Products that are shaped, cut, worked, finished or otherwise fabricated or installed to form a part of the Work.

C. Equipment: A product with working parts, whether motorized or manually operated, that requires connections such as wiring or piping.

1.04 PACKAGING AND MARKING
A. Equipment shall be protected against damage from moisture, dust, handling, or other cause during transport from manufacturer’s premises to site. Each item or package shall be marked with the number unique to the specification reference covering the item.

B. Stiffeners shall be used where necessary to maintain shapes and to give rigidity. Parts of equipment shall be delivered in assembled or subassembled units where possible.

C. Bearing housings, vents and other types of openings shall be wrapped or otherwise sealed to prevent contamination by dust and dirt.

1.05 SHIPPING AND DELIVERY
A. Plan, order, coordinate and deliver materials and equipment in accordance with the construction schedule to avoid delays and conflicts with the Work.

B. Deliver anchor bolts and bolt templates sufficiently early to permit setting and placement in structural concrete.

C. Unload products in accordance with the manufacturer’s handling instructions. Promptly inspect for completeness and evidence of damage during shipment.

1.06 HANDLING AND STORAGE
A. During the interval between the delivery of equipment to the site and installation, all equipment, unless otherwise specified, shall be stored in an enclosed space affording protection from weather, dust and mechanical damage and providing favorable

Page 758 of 2338 ends

West Yost – March 2023 01600 - 2 City of Ukiah
592-50-22-14 Materials and Equipment Thickening and Dewatering Improvements
temperature, humidity and ventilation conditions to ensure against equipment deterioration.

Manufacturer’s recommendations shall be adhered to in addition to these requirements.

B. Equipment and materials to be located outdoors may be stored outdoors if protected against moisture condensation. Equipment shall be stored at least 6 inches above ground.

Temporary power shall be provided to energize space heaters or other heat sources for control of moisture condensation. Space heaters or other heat sources shall be energized without disturbing the sealed enclosure.

C. Fabricated products, pipe and pipe appurtenances shall be handled, stored off the ground on blocking or skids. Pipes with paint, tape coatings, linings or the like shall be stored to protect the coating or lining from physical damage or other deterioration. Pipes shipped with interior bracing shall have the bracing removed only when recommended by the pipe manufacturer.

D. Store loose granular products in well-drained area on a solid surface to prevent mixing with foreign matter. Cover products that are subject to erosion or deterioration with plastic sheeting.

E. Store electrical, instrumentation and control products in a water-tight enclosure to protect against damage from moisture, dust and corrosion.

1.07 PROTECTION OF EQUIPMENT AFTER INSTALLATION
A. After installation, protect equipment from damage from, including but not limited to, dust, abrasive particles, debris and dirt generated by the placement, chipping, sandblasting, cutting, finishing and grinding of new or existing concrete, terrazzo and metal; and from the fumes, particulate matter, and splatter from welding, brazing and painting of new or existing piping and equipment.

B. As a minimum, vacuum cleaning, blowers with filters, protective shielding, and other dust suppression methods will be required at all times to adequately protect all equipment.

C. When sandblasting or when finishing concrete, all equipment that may be affected by cement dust shall be completely covered. Electrical switchgear, substations and motor load centers shall not be installed until after all concrete work and sandblasting in those areas have been completed and accepted and the ventilation systems installed.

D. During painting operations, all grease fittings and similar openings shall be covered to prevent the entry of paint.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION

3.01 INSPECTION
A. Prior to installation, inspect materials and equipment for signs of corrosion and other effects of storage. Do not install material or equipment showing such effects.

B. Remove damaged material from the site and expedite delivery of replacement material or equipment. Delays to the Work resulting from material or equipment damage that necessitates procurement of new products will be considered delays that are within the Contractor’s control.

3.02 INSTALLATION
A. Handle, install, connect, clean and adjust products in accordance with the manufacturer’s instructions.

Page 759 of 2338 ends

West Yost – March 2023 01600 - 3 City of Ukiah
592-50-22-14 Materials and Equipment Thickening and Dewatering Improvements
B. Fill lubricant reservoirs and grease bearings prior to starting equipment. Use lubricants recommended by the manufacturer of the equipment.

C. Recoat painted surfaces that are damaged prior to final acceptance of the Work.

END OF SECTION

Page 760 of 2338 ends

West Yost – March 2023 01600 - 4 City of Ukiah
592-50-22-14 Materials and Equipment Thickening and Dewatering Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 761 of 2338 ends

TJCAA – March 2023 01612 - 1 City of Ukiah
592-50-22-14 Seismic Design Criteria Thickening and Dewatering Improvements
SECTION 01612

SEISMIC DESIGN CRITERIA
PART 1 - GENERAL

1.01 THE REQUIREMENT
A. All products to be furnished under this contract shall be designed, constructed, and installed in conformance with the seismic requirements contained within the 2022 California Building Code (CBC), Seismic Soil Profile Type "D", and the following seismic design parameters:

1. Design Spectral Response Acceleration for Short Period (SDS) = 1.492g

2. Design Spectral Response Acceleration for 1-second Period (SD1) = 0.807g

3. Seismic Use Group III

4. Seismic Design Category E

5. IE = 1.25 for entire structure

6. IP = 1.5 for elements of structures and equipment

1.02 RELATED WORK
A. Section 01330, Submittals
B. Section 01614, Wind Design Requirements.

C. Section 05500, Miscellaneous Metals.

1.03 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. California Building Standards Commission (CBSC)

1. California Building Code
B. American Society of Civil Engineers (ASCE)

1. ASCE/SEI 7, Minimum Design Loads for Buildings and Other Structures C. American Concrete Institute (ACI)

1. ACI 318, Building Code Requirements for Structural Concrete D. International Code Council Evaluation Services (ICC-ES)

1. Manufacturer Evaluation Reports, as appropriate.

E. Network Equipment Building System (NEBS)

1. Bellcore TR-NWT-000063
F. Sheet Metal and Air Conditioning Contractors National Association (SMACNA)

1. Seismic Restraint Manual – Guidelines for Mechanical Systems G. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.

1.04 SUBMITTALS
A. Submit calculations and/or shop drawings, in accordance with Division 1, and shall include the following information.

Page 762 of 2338 ends

TJCAA – March 2023 01612 - 2 City of Ukiah
592-50-22-14 Seismic Design Criteria Thickening and Dewatering Improvements
B. Design Data:

1. Equipment Qualification – CONTRACTOR shall submit for review and approval (if required). Structural seismic qualification of the equipment to demonstrate that it is capable of withstanding forces as specified.

2. Anchorage System – CONTRACTOR shall submit for review and approval.

Structural calculations, of the proposed anchorage system, certified by a Professional Civil or Structural Engineer licensed within the State of California.

C. Certification:

1. Certification from equipment manufacturer stating that equipment is either "Prequalified Structurally and Functionally Rugged" or "Pre-qualified Structurally Rugged," as applicable.

1.05 EQUIPMENT CLASSIFICATION
A. Class I – Pre-qualified Structurally and Functionally Rugged:

1. Equipment defined as Class I is expected to remain operable, or be capable of immediate restoration to service following a Design Basis Earthquake (DBE).

2. Class I equipment, which is not pre-qualified as structurally and functionally rugged shall be subject to functional seismic qualification. Functional seismic qualification shall consist of prototype shake table testing in accordance with the requirements of TR-NWT-000063.

3. Ground motion time histories used, as the basis of shake table qualification testing shall produce a response spectrum, which envelops the site-specific response spectrum for the project.

B. Class II – Pre-qualified Structurally Rugged:

1. Equipment designated as Class II need not remain functional through a Design Basis Earthquake or even be capable of immediate restoration to service.

Nevertheless, such equipment shall be able to resist damage adequately to permit repair and return to service within a short period of time, following a DBE.

2. Class II equipment which is not pre-qualified as "structurally and functionally rugged" or as "structurally rugged" shall be subject to structural seismic qualification. Structural seismic qualification shall consist of submittal of specific structural engineering analysis of the design and interconnection of all parts and portions of the equipment to demonstrate that it is capable of withstanding forces as specified. Calculations shall be sealed by a Civil or Structural Engineer licensed within the State of California.

1.06 FIXTURE AND EQUIPMENT ANCHORAGE
A. Anchorage and other supports for all important equipment shall be designed to resist seismic forces occurring at each of the three principal directions separately as well as simultaneously. When combining seismic forces in the orthogonal directions simultaneously, the combination of 100-percent Fh1, plus 30-percent Fh2, plus 30-percent of Fv shall be used. Where inclusion of vertical loads results in a less conservative design, vertical effects shall be neglected. Alternatively, the orthogonal effects may be combined on a square-root-of-the-sum-of-the-squares (SRSS) basis, using 100-percent of the forces in three directions.

B. Structural design of equipment anchorage will be submitted for pre-qualified structurally rugged equipment. Calculations shall be sealed by a Civil or Structural Engineer licensed within the State of California.

Page 763 of 2338 ends

TJCAA – March 2023 01612 - 3 City of Ukiah
592-50-22-14 Seismic Design Criteria Thickening and Dewatering Improvements
C. Equipment, which is not pre-qualified as structurally rugged, will be subject to structural seismic qualification. Structural seismic qualification will consist of submittal of specific structural engineering analysis of the design and interconnection of all parts, portions and anchorage of the equipment to demonstrate that it is capable of withstanding forces resulting from a Design Basis Earthquake. Calculations shall be sealed by a Civil or Structural Engineer licensed within the State of California.

D. Architectural elements (racks, shelving, cladding, windows, doors, non-engineered partition walls, parapets, ornamentation, gutters and downspouts, etc.) mechanical and electrical components, equipment housings and their attachments, supporting structures, and anchorage:

1. Shall be designed and constructed to resist the seismic forces in accordance with Chapter 16 of the CBC. This force shall be considered acting at the center of gravity of the piece under consideration. No equipment shall be anchored to vertical structural elements without written approval of the ENGINEER.

2. Component Amplification Factor (ap) equal to 2.5 for nonbuilding structures with flexible dynamic characteristics or ap = 1.0 for nonbuilding structures with rigid dynamic characteristics.

3. Equipment shall be designed for a vertical seismic component equivalent to 2/3 the horizontal seismic component.

4. Vibration isolated equipment shall be provided with snubbers capable of retaining the equipment in its designated location without any material failure or deformation of the snubbers when exposed to a vertical or horizontal force at the contact surface equal to 100 percent of the operating weight of the equipment. Air gaps between retainer and equipment shall not exceed 1/4-inch.

5. Piping with flexible connection and/or expansion joints shall be anchored such that the intended uses of these joints are maintained in the piping system.

6. Calculations and shop drawings shall be submitted for all anchorage details. All calculations shall be made and signed by a Professional Civil or Structural Engineer licensed in the State of California. Inasmuch as all anchorage of equipment is to be made of poured-in-place concrete elements, it is imperative that types of anchorage be coordinated with the concrete contractor so that anchorage may be installed at time of concrete placement. If calculations and anchorage details are not submitted prior to placing concrete, the CONTRACTOR will become responsible for any strengthening of concrete elements because of superimposed seismic loading.

E. Cast-in anchor bolts are preferred for support of critical equipment and framing. Drilled-in expansion anchors will not be used, without approval from the ENGINEER, for critical fastening such as extreme vibratory conditions, impact loads, seismic connections, and overhead installations.

F. Expansion and adhesive anchors will have an associated research report issued by The International Code Council Evaluation Service, Inc. (ICC-ES). Design values and installation requirements for anchors will be as presented in the appropriate ICC-ES and/or Legacy report(s). Edge distance, bolt spacing, inspection requirements and operating temperatures will be considered when determining the appropriate allowable design values.

1.07 VIBRATION ISOLATION
A. In general, equipment should be rigidly mounted to supporting foundations and structures, without the aid of vibration isolation devices. Exceptions are mechanical equipment in which vibrations transmitted from the equipment would be troubling to building occupants and/or other equipment within the building.

Page 764 of 2338 ends

TJCAA – March 2023 01612 - 4 City of Ukiah
592-50-22-14 Seismic Design Criteria Thickening and Dewatering Improvements
B. If vibration isolation mountings are required for equipment. The mountings, and their attachments to the supporting structure, shall be designed as flexible mountings in accordance with governing Code. The supplier of the vibration isolation mounting hardware shall be required to submit certified calculations, sealed by a Civil or Structural Engineer licensed within the State of California. Indicating the adequacy of the hardware and attachment anchorage to meet these criteria.

1.08 ABOVE GROUND PIPING
A. Steel piping shall as a minimum, be provided with braces that satisfy the latest edition of SMACNA requirements for Seismic Hazard Level A unless demonstrated to the satisfaction of the OWNER that it is capable of resisting the required seismic forces under other support conditions. Connection Level I shall be used for all piping.

B. Plastic piping shall be braced laterally at intervals not exceeding twice that recommended by the manufacturer for vertical support.

C. Piping crossing expansion joints between adjacent structures shall be provided with expansion fittings, multiple bends, or other suitable provisions to ensure capacity to sustain expected differential movement between structures.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION

3.01 GENERAL
A. All equipment designed to be fixed in position shall be securely fastened in place in conformance with the CBC, ASCE 7, or as specified herein the Technical Specifications for a specific piece of equipment under Division 2 through 16. For other equipment, the equipment manufacturer shall provide recommended anchorage information to the CONTRACTOR for use in the installation of the equipment.

B. See also Section 01614 for Wind Design Requirements.

3.02 STRUCTURAL INTEGRITY AND ANCHORAGE
A. It shall be the responsibility of the equipment manufacturer/supplier to provide the engineering anchorage calculations and figures to the CONTRACTOR for submission to the ENGINEER. As a minimum, the equipment manufacturer/supplier shall determine the number, dimensions, material, location, embedment and installation conditions of all anchor bolts to be set in concrete in accordance with Contract Specifications and Drawings.

At the option of the CONTRACTOR, the CONTRACTOR or equipment manufacturer/supplier shall furnish the anchor bolts and associated hardware as specified herein and as determined by the manufacturer/supplier's engineering anchorage calculations for installation by the CONTRACTOR.

B. Engineering anchorage calculations and figures shall be prepared, stamped and signed by a Professional Civil or Structural Engineer licensed in the State of California. Calculations shall include the following steps as a minimum:

1. Determination of the operating equipment weight and centroid of the equipment.

2. Determination of the shear and overturning forces at each anchorage due to the force determined, as specified below, being applied at the equipment's centroid.

3. Determination of the shear and tension forces that must be developed by the anchorage at each support to resist the forces calculated.

4. Selection of the anchorage details based upon the maximum shear and tension forces calculated above. As a minimum, details shall include number of bolts,

Page 765 of 2338 ends

TJCAA – March 2023 01612 - 5 City of Ukiah
592-50-22-14 Seismic Design Criteria Thickening and Dewatering Improvements
materials, diameter, total length, embedded length, required edge distance and bolt dimensions. The embedded length of bolts shall be suitable to develop the ultimate tensile capacity of the anchorage for ductile failure.

C. For all equipment weighing 400 pounds or more, the minimum anchor bolt size shall be 5/8-inch diameter, with 5-inch minimum embedment. The minimum anchor bolt size for all other equipment shall be 3/8-inch diameter, with 4-inch minimum embedment. All anchor bolts securing equipment to be grouted shall be furnished with leveling nuts, the faces of which shall be tightened against the flat surfaces to not less than 10 percent of the bolts safe tensile stress.

D. Cast-in-place anchor bolts shall be set before concrete has been placed and shall be carefully held in position with suitable templates of an acceptable design.

E. No equipment shall be anchored to vertical structural elements without the written approval of the ENGINEER, with the exception of pipe hangers/supports or anchorage as specified.

3.03 SEISMIC REQUIREMENTS
A. The seismic qualification for the above equipment shall be demonstrated by structural calculation(s) or engineering shake table test(s).

3.04 PROOF OF COMPLIANCE
A. As required by other sections of these Specifications, CONTRACTOR shall submit for review and acceptance, test data or structural calculations certified by a Professional Civil or Structural Engineer, licensed in the State of California, to show compliance with the above requirements.

B. Test data for similar equipment may be used subject to the approval of the ENGINEER.

C. In addition to the above requirements, where equipment with complex component structural systems, (i.e. systems involving components with multiple degrees of freedom and higher order modes of vibration), contains low weight components (e.g. circuit boards, relays, or solenoids), an additional empirical evaluation for such low weight components shall be certified in writing by a Professional Civil or Structural Engineer, licensed in the State of California, to satisfy the requirements set forth above. At a minimum, such certification shall be based on an empirical evaluation of direct observation of such equipment as part of the factory or shop witness testing including physical “hand” shake and pull tests, and general calculations (if required to verify capacity overload) necessary to satisfy the ENGINEER of compliance with the above requirements. Certification shall be in the form of a letter from the licensed engineer incorporating the nature of the observations and/or calculations performed including the licensed engineer’s seal and signature

END OF SECTION

Page 766 of 2338 ends

TJCAA – March 2023 01612 - 6 City of Ukiah
592-50-22-14 Seismic Design Criteria Thickening and Dewatering Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 767 of 2338 ends

TJCAA – March 2023 01614 - 1 City of Ukiah
592-50-22-14 Wind Design Criteria Thickening and Dewatering Improvements
SECTION 01614

WIND DESIGNS REQUIREMENTS
PART 1 - GENERAL

1.01 THE REQUIREMENT
A. All products to be furnished under this contract shall be designed, constructed, and installed in conformance with the wind design requirements contained within the 2022 California Building Code (CBC), and the following design parameters:

1. Occupancy Category, III

2. Fastest Mile Wind Speed (3 Second Gust) 99 miles per hour

3. Wind Exposure Category "C"

4. Importance Factor, IW = 1.15

1.02 RELATED WORK
A. Section 01330, Submittals
B. Section 01612, Seismic Design Requirements.

C. Section 05500, Miscellaneous Metals.

1.03 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. California Building Standards Commission (CBSC)

1. California Building Code
B. American Society of Civil Engineers (ASCE)

1. ASCE/SEI 7, Minimum Design Loads for Buildings and Other Structures C. American Concrete Institute (ACI)

1. ACI 318, Building Code Requirements for Structural Concrete D. International Code Council Evaluation Services (ICC-ES)

1. Manufacturer Evaluation Reports, as appropriate.

E. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.

1.04 SUBMITTALS
A. Submit calculations and/or shop drawings, in accordance with Division 1, and shall include the following information:

B. Design Data:

1. Anchorage System – CONTRACTOR shall submit for review and approval.

Structural calculations, of the proposed anchorage system, certified by a Professional Civil or Structural Engineer licensed within the State of California.

1.05 FIXTURE AND EQUIPMENT ANCHORAGE
A. Anchorage and other supports for all important equipment shall be designed to resist wind forces occurring along each of the three principal directions.

Page 768 of 2338 ends

TJCAA – March 2023 01614 - 2 City of Ukiah
592-50-22-14 Wind Design Criteria Thickening and Dewatering Improvements
B. Architectural elements (racks, shelving, cladding, windows, doors, non-engineered partition walls, parapets, ornamentation, gutters and downspouts, etc.) mechanical and electrical components, equipment housings and their attachments, supporting structures, and anchorage:

1. Calculations and shop drawings shall be submitted for all anchorage details. All calculations shall be made and signed by a Professional Civil/Structural Engineer licensed in the State of California. Inasmuch as all anchorage of equipment is to be made of poured-in-place concrete elements, it is imperative that types of anchorage be coordinated with the concrete contractor so that anchorage may be installed at time of concrete placement. If calculations and anchorage details are not submitted prior to placing concrete, the CONTRACTOR will become responsible for any strengthening of concrete elements because of superimposed wind loading.

C. Cast-in anchor bolts are preferred for support of critical equipment and framing. Drilled-in expansion anchors will not be used, without approval from the ENGINEER D. Expansion and adhesive anchors will have an associated research report issued by The International Code Council Evaluation Service, Inc. (ICC-ES). Design values and installation requirements for anchors will be as presented in the appropriate ICC-ES and/or Legacy report(s). Edge distance, bolt spacing, inspection requirements and operating temperatures will be considered when determining the appropriate allowable design values.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION

3.01 GENERAL
A. All equipment designed to be fixed in position shall be securely fastened in place in conformance with the CBC, ASCE 7, or as specified herein the Technical Specifications for a specific piece of equipment under Division 2 through 16. For other equipment, the equipment manufacturer shall provide recommended anchorage information to the CONTRACTOR for use in the installation of the equipment.

B. See also Section 01612 for Seismic Design Requirements.

3.02 STRUCTURAL INTEGRITY AND ANCHORAGE
A. It shall be the responsibility of the equipment manufacturer/supplier to provide the engineering anchorage calculations and figures to the CONTRACTOR for submission to the ENGINEER. As a minimum, the equipment manufacturer/supplier shall determine the number, dimensions, material, location, embedment and installation conditions of all anchor bolts to be set in concrete in accordance with Contract Specifications and Drawings.

At the option of the CONTRACTOR, the CONTRACTOR or equipment manufacturer/supplier shall furnish the anchor bolts and associated hardware as specified herein and as determined by the manufacturer/supplier's engineering anchorage calculations for installation by the CONTRACTOR.

B. Engineering anchorage calculations and figures shall be prepared, stamped and signed by a Professional Civil or Structural Engineer licensed in the State of California. Calculations shall include the following steps as a minimum:

1. Determination of the shear and overturning forces at each anchorage due to the force determined, as specified below, being applied.

2. Determination of the shear and tension forces that must be developed by the anchorage at each support to resist the forces calculated.

Page 769 of 2338 ends

TJCAA – March 2023 01614 - 3 City of Ukiah
592-50-22-14 Wind Design Criteria Thickening and Dewatering Improvements

3. Selection of the anchorage details based upon the maximum shear and tension forces calculated above. As a minimum, details shall include number of bolts, materials, diameter, total length, embedded length, required edge distance and bolt dimensions. The embedded length of bolts shall be suitable to develop the ultimate tensile capacity of the anchorage for ductile failure.

C. Cast-in-place anchor bolts shall be set before concrete has been placed and shall be carefully held in position with suitable templates of an acceptable design.

D. No equipment shall be anchored to vertical structural elements without the written approval of the ENGINEER, with the exception of pipe hangers/supports or anchorage as specified.

END OF SECTION

Page 770 of 2338 ends

TJCAA – March 2023 01614 - 4 City of Ukiah
592-50-22-14 Wind Design Criteria Thickening and Dewatering Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 771 of 2338 ends

West Yost – March 2023 01740 - 1 City of Ukiah
592-50-22-14 Cleaning Thickening and Dewatering
Improvements
SECTION 01740

CLEANING
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Intermediate and final cleaning of Work not including special cleaning of closed systems specified elsewhere.

1.02 STORAGE AND HANDLING
A. Store cleaning products and cleaning wastes in containers specifically designed for those materials.

1.03 SCHEDULING
A. Schedule cleaning operations so that dust and other contaminants disturbed by cleaning process will not fall on newly painted surfaces.

PART 2 - PRODUCTS

2.01 MATERIALS
A. Cleaning Agents

1. Compatible with surface being cleaned.

2. New and uncontaminated.

3. For Manufactured Surfaces: Material recommended by manufacturer.

PART 3 - EXECUTION

3.01 GENERAL
A. Prevent accumulation of wastes that create hazardous conditions.

B. Conduct cleaning and disposal operations to comply with laws and safety orders of governing authorities.

C. Do not dispose of volatile wastes such as mineral spirits, oil, or paint thinner in storm or sanitary drains or sewers.

D. Dispose of degradable debris at an approved solid waste disposal site.

E. Dispose of non-degradable debris at an approved solid waste disposal site or in an alternate manner approved by Engineer and regulatory agencies.

F. Handle materials in a controlled manner with as few handlings as possible.

G. Do not drop or throw materials from heights greater than 4-feet or less if conditions warrant greater care.

H. On completion of work, leave area in a clean, natural looking condition. Remove all signs of temporary construction and activities incidental to construction of required permanent Work.

I. Do not burn on-site.

Page 772 of 2338 ends

West Yost – March 2023 01740 - 2 City of Ukiah
592-50-22-14 Cleaning Thickening and Dewatering
Improvements

3.02 INTERIOR CLEANING
A. Cleaning During Construction

1. Keep work areas clean so as not to hinder health, safety or convenience of personnel in existing facility operations.

2. At maximum weekly intervals, dispose of waste materials, debris, and rubbish.

3. Vacuum clean interior areas when ready to receive finish painting. Continue vacuum cleaning on an as-needed basis, until final cleaning.

B. Final Cleaning

1. Complete immediately prior to Final Inspection.

2. Remove grease, mastic, adhesives, dust, dirt, stains, fingerprints, labels, and other foreign materials from sight-exposed surfaces.

3. Wipe all lighting fixture reflectors, lenses, lamps and trims clean.

4. Wash and shine glazing and mirrors.

5. Polish glossy surfaces to a clear shine.

6. Ventilating systems
a. Clean permanent filters and replace disposable filters if units were operated during construction.
b. Clean ducts, blowers and coils if units were operated without filters during construction.

7. Replace all burned out lamps.

8. Broom clean process area floors.

9. Mop office and control room floors.

3.03 EXTERIOR SITE CLEANING
A. Cleaning During Construction

1. Construction debris
a. Confine in strategically located container(s):
1) Cover to prevent blowing by wind.
2) Haul from site minimum once a week.
b. Remove from work area to container daily.

2. Vegetation
a. Keep weeds and other vegetation trimmed to 3-inch maximum height.

3. Soils, sand, and gravel deposited on paved areas and walks:
a. Remove as required to prevent muddy or dusty conditions. b. Do not flush into storm sewer system.

B. Final Cleaning

1. Remove trash and debris containers from site:
a. Re-seed areas disturbed by location of trash and debris containers.

2. Clean paved roadways.

Page 773 of 2338 ends

West Yost – March 2023 01740 - 3 City of Ukiah
592-50-22-14 Cleaning Thickening and Dewatering
Improvements

3.04 FIELD QUALITY CONTROL
A. Immediately prior to Demonstration Period, conduct an inspection with Engineer to verify condition of all work areas.

END OF SECTION

Page 774 of 2338 ends

West Yost – March 2023 01740 - 4 City of Ukiah
592-50-22-14 Cleaning Thickening and Dewatering
Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 775 of 2338 ends

West Yost – March 2023 01770 - 1 City of Ukiah
592-50-22-14 Contract Closeout Procedures Thickening and Dewatering Improvements
SECTION 01770

CONTRACT CLOSEOUT PROCEDURES
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Administrative and procedural requirements for contract closeout.

1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section

1. General Conditions

2. Section 01780 – Record Drawings

3. Section 01782 – Operation and Maintenance Information

1.03 FINAL CLEANING
A. Immediately prior to submittal of a request for inspection for Substantial Completion, clean the project site and make ready for Owner’s use and occupancy.

B. Employ experienced workers or professional cleaners for final cleaning.

C. Complete the following cleaning operations:

1. Clean the project site, yard and grounds which were disturbed by construction activities. Remove rubbish, waste material, litter and other foreign material.

2. Sweep paved areas, remove oil stains, grease, dust and dirt.

3. Remove tools, construction equipment, machinery, storage sheds, temporary fences and surplus material.

4. Broom clean sidewalks and concrete floors.

5. Vacuum carpets, spot clean or if necessary, shampoo to remove visible soil or stains.

6. Clean glass in doors and windows, remove glazing compounds, replace chipped and broken glass, clean door and window frames.

7. Patch, touch up and repair marred surfaces and finishes. Replace finishes and surfaces that cannot be satisfactorily repaired or restored.

8. Wipe surfaces of mechanical and electrical equipment, remove excess lubrication, paint splatter and mortar droppings.

9. Clean plumbing fixtures and mirrors.

10. Clean light fixtures, lamps and bulbs. Replace burned-out bulbs and defective or noisy starters in fluorescent and mercury vapor fixtures.

1.04 SUBSTANTIAL COMPLETION
A. General:

1. Comply with procedural requirements for Substantial Completion as specified in the General Conditions.

B. Complete final cleaning operations before requesting inspection for Substantial Completion.

Page 776 of 2338 ends

West Yost – March 2023 01770 - 2 City of Ukiah
592-50-22-14 Contract Closeout Procedures Thickening and Dewatering Improvements
C. Prior to requesting inspection for Substantial Completion, complete and submit the following:

1. List of items to be completed or corrected (punch list). Organize list by facility, space, system and piece of equipment.

2. Specific warranties, bonds, maintenance service agreements, final certifications and similar documents.

3. Delivery of spare parts, special tools, extra materials and similar items to designated locations.

4. Make final changeover of permanent locks and deliver keys to Owner.

D. Inspection for Substantial Completion:

1. Engineer, Owner and Contractor shall jointly walk through and inspect the project site to determine whether the Work is satisfactory and Substantially Complete.

2. The Contractor’s punch list will be reviewed and additional items identified during the inspection requiring corrective actions will be added to the list as determined by the inspection.

3. Once Substantial Completion has been achieved, Engineer will prepare a Certificate of Substantial Completion.

1.05 FINAL COMPLETION
A. Final Completion Submittals:

1. Prior to submitting final Application for Payment, complete and submit the following:
a. Project Record Drawings. Refer to Section 01780.
b. Guaranty and Warranties.
c. Operation and Maintenance Information. Refer to Section 01782. d. Punch List with all corrective actions completed and ready for Final Inspection.
e. Releases from Agreements with property owners or public agencies. f. Releases or Waivers of Liens and Claims.
g. Evidence of final, continuing insurance coverage complying with insurance requirements.
h. Consent of Surety to Final Payment.

B. Final Inspection:

1. Submit written request for final inspection for Project Acceptance.

2. Engineer will either proceed with the inspection or advise Contractor of unfulfilled requirements.

3. Engineer will prepare a Certificate of Final Completion after satisfactory inspection of the Work.

1.06 FINAL APPLICATION FOR PAYMENT
A. Following a satisfactory Final Inspection and receipt of a signed Certificate of Final Completion from the Engineer, submit the final Application for Payment in accordance with the procedures and requirements specified in the General Conditions.

END OF SECTION

Page 777 of 2338 ends

West Yost – March 2023 01780 - 1 City of Ukiah
592-50-22-14 Record Drawings Thickening and Dewatering
Improvements
SECTION 01780

RECORD DRAWINGS
PART 1 - GENERAL

1.01 SUMMARY
A. Record Drawings are documents maintained and annotated by the Contractor during construction to illustrate the final location of piping, equipment, electrical conduits, outlet boxes and cables.

B. Record changes or deviations that vary from the details indicated on the original Contract Documents. Identify buried or concealed construction and utility features that are revealed during the course of construction. Record the horizontal and vertical location of buried utilities that differ from the locations indicated, or which were not indicated on the Contract Documents.

C. When the configuration and arrangement of the Work is changed from that indicated on the Contract Drawings or specified in the Project Manual, the authorizing document for the change, such as a Request for Information, Change Order, Shop Drawing, or Field Order, shall be clearly referenced on the Record Drawings as a comment.

D. Supplement the Record Drawings with detailed layout sketches, schedules, installation drawings and fabrication drawings.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION

3.01 RECORD DRAWINGS
A. Record Drawings shall be full-size and maintained in a clean and legible condition.

Engineer will provide one set of full-size Drawings for use as a Record Drawing set.

B. Do not use the Record Drawing set for construction purposes.

C. At the completion of the work, but prior to final payment, submit the Record Drawing set to the Engineer.

D. Marking of the drawings shall be kept current and shall be done at the time the material and equipment are installed.

E. Annotations to the Record Drawings shall be legible and shall be made with an erasable colored pencil conforming to the following color code:

1. Additions and Final Dimensions – Red

2. Deletions – Green

3. Comments – Blue
F. Engineer will review the Contractor’s updated Record Drawing mark-ups on a monthly basis during the evaluation of each progress payment.

1. Progress payment approval is contingent upon complete and up-to-date Record Drawing mark-ups.

2. Payment approval will be delayed if mark-up drawings are not up-to-date.

END OF SECTION

Page 778 of 2338 ends

West Yost – March 2023 01780 - 2 City of Ukiah
592-50-22-14 Record Drawings Thickening and Dewatering
Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 779 of 2338 ends

West Yost – March 2023 01782 - 1 City of Ukiah
592-50-22-14 Operation and Maintenance Information Thickening and Dewatering Improvements
SECTION 01782

OPERATION AND MAINTENANCE INFORMATION
PART 1 - GENERAL

1.01 GENERAL
A. O&M information shall be provided for each maintainable piece of equipment, equipment assembly or subassembly, and material provided or modified under this Contract.

B. Contractor shall be responsible for:

1. Compiling product data and related information appropriate for the Owner’s operation and maintenance of products furnished under the Contract.

2. Preparing operating and maintenance data as specified in this Section and as referenced in other pertinent Sections of specifications for products furnished under the Contract.

1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section

1. Section 01330 – Submittals

1.03 SUBMITTALS
A. Submit in accordance with Section 01330.

B. Submit 2 manuals for review for each piece of equipment or system. Engineer and Owner will review the manuals and both will be returned to the Contractor. Make additions and revisions in accordance with the review comments and submit 4 final O&M Manuals.

C. O&M Manuals must be submitted and accepted before on-site training may start.

D. If the manufacturer’s standard brochures and manuals are used to describe O&M procedures, modify or annotate these published documents to identify only the model or series of equipment installed on the project. Neatly cross out, eliminate or otherwise annotate extraneous material.

E. Submittals that are not fully indexed and tabbed with sequentially numbered pages shall be returned without review.

F. Provide two sets of CDs containing all AutoCAD as-built electrical and instrumentation drawings prepared for this project.

PART 2 - PRODUCTS

2.01 GENERAL
A. Operation and maintenance data shall be provided in the form of an instructional manual for use by Owner’s personnel.

B. Format

1. Size: 8½-inch by 11-inch. (except drawings)

2. Text
a. Manufacturer’s printed data properly edited for project. Cross out all data that does not apply to the equipment to be furnished.

Page 780 of 2338 ends

West Yost – March 2023 01782 - 2 City of Ukiah
592-50-22-14 Operation and Maintenance Information Thickening and Dewatering Improvements
b. All documents shall be machine typed; hand written documents are not acceptable. All documents shall be legible and original size, documents that cannot be read or have been reduced will be returned for correction.

3. Drawings
a. Provide drawings in a separate reinforced punched binder tab-bind in with text.
b. Drawings larger than 11-inch by 17-inch shall be placed in an 8½-inch by 11-inch envelopes bound in text.
c. Drawings shall be suitably identified on the Drawings binder. d. Drawings shall be referenced in text.

4. Binders: Commercial quality, permanent, all white in color, three-ring, durable, cleanable plastic covers with inserts, insertable full height and width, front, back, and spine, with full-page sheet lifters. Size of binder shall be appropriate for the quantity of material it will contain.

5. Indexing: The manuals shall be fully indexed by use of side tabs.

6. All of these sets of O & M manuals shall be made up of "original" (no copies or reproductions) documents. No photo or fax copies are allowed of standard published manuals available from manufacturers.

2.02 CONTENTS OF MANUAL
A. Presentation of Data

1. Include only those sheets that are pertinent to the specific product.

2. Annotate each sheet to:
a. Clearly identify the specific project or part installed. b. Clearly identify the data applicable to the installation. c. Cross-out references to inapplicable information.

B. Drawings

1. Supplement product data with Drawings as necessary to clearly illustrate:
a. Relations of component parts of equipment and systems. Include individual parts list with exploded views for all equipment. b. Control and flow diagrams.

2. Electrical/instrumentation coordinate drawings with information in project contract documents to assure correct illustration of completed installation.

3. “As Constructed” set of submittal shop documents, data sheets, and drawings, including all items in the electrical/instrumentation system as specified in Division

16. Contract documents shall not be used as “As Constructed” drawings.

C. Written text as required to supplement product data for the particular installation:

1. Organize in a consistent format under separate headings for different procedures.

2. Provide a logical sequence of instructions for each procedure.

D. Provide the index and information layout in the operation and maintenance manual for each unit of equipment, and system, including electrical, and electronic items as follows:

1. Cover sheet including the following:
a. Volume __ of X.
b. Operation and Maintenance Manual.

Page 781 of 2338 ends

West Yost – March 2023 01782 - 3 City of Ukiah
592-50-22-14 Operation and Maintenance Information Thickening and Dewatering Improvements
c. Project title.
d. Owner project number.
e. Manufacturer: Name, addresses, and telephone numbers of the manufacturer and the nearest representative of the manufacturer. f. Date.

2. Document Index: Neatly typewritten document index for each volume, arranged as indicated in Appendix “A”. Master Table of Contents shall be placed in Volume 1 itemizing all of the information included in the O&Ms and the corresponding volume location of that information.

3. Equipment Record Sheet for Electrical/Instrumentation Equipment a. Equipment record sheet for electrical/instrumentation equipment as specified in Division 16.
b. A complete list of items supplied, including serial numbers, ranges, options, and other pertinent data necessary for ordering replacement parts.
c. Name and location of nearest parts supplier for all equipment.

4. Theory of Operation.

5. Description: Provide description of units and components parts function, normal operating characteristics, and limiting conditions.
a. Include general descriptive bulletins, brochures, or catalog sheets to describe the equipment.
b. Performance curves, engineering data, and tests.

6. Operating Instructions: Complete, detailed, written description of the sequence of operating sequence for all control system and operations in all modes. The description shall be specifically prepared for this work, and shall be fully referenced to control diagrams and system components:
a. Recommended step-by-step startup, adjustment, calibration and break-in operating instructions.
b. Routine and normal operating instructions. Include summer and winter operating instructions as applicable. Also include special operating instructions.
c. Recommended step-by-step regulation, control, starting, and shut-down instructions.
d. No photocopies are allowed of standard published manuals available from manufacturers.
e. Recommended step-by-step emergency instructions. Provide emergency procedures for equipment malfunctions to permit a short period of continued operation or to shut down the equipment to prevent further damage to systems and equipment. Include emergency shutdown instructions for fire, explosion, spills, or other foreseeable contingencies.

Provide guidance on emergency operations of all utility systems including valve locations and portions of systems controlled.
f. Current and desired control settings.

7. Maintenance Instructions
a. Provide the following lubrication data.
1) A table showing recommended lubricants for specific temperature ranges and applications;

Page 782 of 2338 ends

West Yost – March 2023 01782 - 4 City of Ukiah
592-50-22-14 Operation and Maintenance Information Thickening and Dewatering Improvements
2) Charts with a schematic diagram of the equipment showing lubrication points, recommended types and grades of lubricants, and capacities; and
3) A lubrication schedule showing service interval frequency. b. Detailed service, maintenance and operation instructions for each item supplied. Preventative maintenance to include routine operation, alignment, adjusting, and checking. Include illustrations, assembly drawings, and diagrams required for maintenance. Preventative maintenance procedure and schedule for all equipment over a five-year cycle.
c. Corrective maintenance to include disassembly, repair, overhaul and reassembly. d. Schematic diagrams of all electronic devices shall be included. A complete parts list with stock numbers shall be provided on the components that make up the assembly.
e. Special maintenance requirements particular to this system shall be clearly defined, along with special calibration and test procedures. f. No photocopies are allowed of standard published manuals available from manufacturers.
g. Include Maintenance Program data entry forms.

8. Shipping and Installation
a. Receiving and handling.
b. Long-term storage and short-term storage.
c. Complete step-by-step installation instructions of all components.

9. Safety Procedures
a. Manufacturer’s safety procedures for operating and maintaining all equipment and materials used. List personnel hazards and safety precautions.

10. Parts Identification
a. Provide identification and coverage for all parts of each component, assembly, subassembly, and accessory of the end items subject to replacement. Include special hardware requirements, such as requirement to use high-strength bolts and nuts. Identify parts by make, model, serial number, and source of supply to allow reordering without further identification. Provide clear and legible illustrations, drawings, and exploded views to enable easy identification of the items. When illustrations omit the part numbers and description, both the illustrations and separate listing shall show the index, reference, or key number which will cross-reference the illustrated part to the listed part. Parts shown in the listings shall be grouped by components, assemblies, and subassemblies.

11. List of recommended spare parts:
a. Original manufacturer’s parts list with manufacturer’s current prices.

Include complete nomenclature and commercial numbers of replaceable parts.
b. Predicted life of parts subject to warranty.
c. Items recommended to be stocked as spare parts.
d. Complete nomenclature and commercial number of all replaceable parts.

Page 783 of 2338 ends

West Yost – March 2023 01782 - 5 City of Ukiah
592-50-22-14 Operation and Maintenance Information Thickening and Dewatering Improvements

12. Testing Equipment and Special Tool Information
a. Provide information on test equipment required to perform specified tests and on special tools needed for the operation, maintenance, and repair of components.

13. Test Data
a. Include all test data and forms from factory and field testing.

14. Troubleshooting instructions.

15. Equipment catalogue sheets and submittals.
a. Include copy of all approved submittals.

16. Electrical and Instrumentation Drawings
a. Electrical & Instrumentation Drawings shall include as-built information per Division 16 for the project. As-built drawings shall be signed and stamped by an electrical engineer registered in the State of California.

17. Complete software ladder logic printouts.

18. Record of all settings or parameters for all programmable devices.

19. At the end of the project these manuals shall be updated to show “as-built” or “asinstalled” conditions.

PART 3 - EXECUTION (NOT USED)

END OF SECTION

Page 784 of 2338 ends

West Yost – March 2023 01782 - 6 City of Ukiah
592-50-22-14 Operation and Maintenance Information Thickening and Dewatering Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 785 of 2338 ends

West Yost – March 2023 01810 - 1 City of Ukiah
592-50-22-14 Facility Start-Up and Commissioning Thickening and Dewatering Improvements
SECTION 01810

FACILITY START-UP AND COMMISSIONING
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Project requirements for Start-up and Commissioning

1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section

1. Section 01600 – Materials and Equipment

2. Section 01820 – Training

1.03 DEFINITIONS
A. Start-up: The initial operation of the facility and/or plant, utilizing wastewater and related substances (sludge, methane, scum), or other media which the facility has been designed to process.

B. Commissioning: A confirmation that equipment, systems and facilities operate in accordance with the design intent and satisfy the detailed requirements of the technical specifications. The duration of the commissioning period shall be not less than 7 consecutive days.

1.04 SERVICES OF MANUFACTURER
A. Manufacturer's services for inspection, physical checkout, field adjustment, field testing, and start-up shall comply with the requirements of this Section, the requirements of the particular equipment or product technical specifications contained in Divisions 2 through 17, and the requirements of Section 01600.

B. Manufacturer's services for training and instruction of the Owner’s personnel shall comply with the requirements of the particular equipment or product technical specifications contained in Divisions 2 through 17 and Section 01820.

1.05 ROLES AND RESPONSIBILITIES
A. Contractor’s Responsibilities

1. Review specific start-up plan(s) provided by the Engineer in order to:
a. Schedule and coordinate with the Engineer for start-up of equipment and systems.
b. Review procedures for facility start-up.

2. Review preliminary punch list items with the Engineer 15 days prior to the scheduled start-up; and complete, correct, or resolve at the option of the Engineer, any items which impact or interfere with the facility start-up.

3. Attend meetings related to the review of start-up plan(s).

4. Clarify submittals, testing requirements, schedules, or other items related to the start-up of the equipment and facilities specified and indicated in the Contract Documents.

Page 786 of 2338 ends

West Yost – March 2023 01810 - 2 City of Ukiah
592-50-22-14 Facility Start-Up and Commissioning Thickening and Dewatering Improvements

5. Provide all start-up materials and operating supplies for 30 operating days.

Supplies include lubricants, chemicals, gases, and specialized fluids to maintain operation for 30 days.

6. Provide Manufacturer's authorized representatives as required to supervise placing equipment or systems in operation and to provide guidance during the start-up period.

7. Provide to the Engineer a list of 24 hour, "on call" representative supervisory persons who will monitor the facility start-up, and serve as a liaison for the Engineer.

8. Provide the necessary craft or labor assistance full time during the day shift and as required at other times in the event of an emergency requiring immediate attention. An emergency is defined as a failure which precludes the further operation of a critical segment of the Work. The response time shall be not less than four hours from the time of notification.

9. Correct all failures or equipment problems identified during start-up. Repairs deemed the responsibility of the Contractor shall be made at no additional cost to the Owner.

B. The responsibilities of the Owner’s O&M staff during the 7-day facility start-up period include the following:

1. Provide staff to operate equipment, systems, and facilities requiring start-up.

2. Provide all utilities including power, natural gas, and water.

C. The Engineer’s responsibilities for the facility start-up period include the following:

1. Coordinate the Contractor’s start-up activities with plant operations staff.

2. Verify the results of performance tests and any retesting.

3. Direct the Contractor to repair defective workmanship, materials, and equipment.

1.06 COMMISSIONING
A. The Owner’s Operations and Maintenance staff will initiate the commissioning period and will operate the facility throughout the duration of the commissioning period. All equipment must operate properly and continuously 24 hours per day for the test period. If any item malfunctions during the test, the item shall be repaired and the test restarted at day zero with no credit given for the operating time before the malfunction.

B. The purpose of this 7-day operational demonstration is to:

1. Provide the environment by which the Owner’s O&M staff can place equipment and systems into service.

2. Expose flaws or defects in workmanship, equipment, or materials, not previously discovered that are the responsibility of the Contractor to repair, correct, modify, or replace prior to Final Acceptance.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION (NOT USED)

END OF SECTION

Page 787 of 2338 ends

West Yost – March 2023 01820 - 1 City of Ukiah
592-50-22-14 Training Thickening and Dewatering
Improvements
SECTION 01820

TRAINING
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Requirements for training the Owner’s personnel, by persons retained by the Contractor specifically for the purpose, in the proper operation and maintenance of the equipment and systems installed under this Contract.

B. Coordinate with the equipment suppliers for all training activities and provide additional labor, services, and materials as required to complete training.

1.02 REFERENCED SECTIONS
A. The following Section is referenced in this Section

1. Section 01330 – Submittals

1.03 TRAINING SESSIONS
A. Where required by the detailed specifications, provide on-the-job training of the Owner’s personnel, which will include plant operations personnel, mechanics, electricians, and electronics technicians.

B. The training sessions shall be conducted by qualified, experienced (2 years minimum), manufacturer’s factory-trained representatives (not sales representatives) of the various equipment manufacturers.

C. Include instruction in both equipment operation and preventive maintenance.

D. Field training sessions shall take place at the project site. Classroom training facility will be provided at the site by the Owner.

1.04 TIMING OF TRAINING SESSIONS
A. Conduct training sessions in conjunction with the operational testing and commissioning periods.

B. Operation and maintenance manuals shall be approved and ready for distribution to the Owner’s personnel at least 30 days prior to the date scheduled for the individual training session.

1.05 SUBMITTALS
A. The following information shall constitute the Contractor’s training plan and be submitted to the Engineer in accordance with the provisions of Section 01330.

1. Lesson plans for each training session to be conducted by the Contractor’s representatives. In addition, training manuals, handouts, visual aids, and other reference materials shall be included.

2. Date, time, and subject of each training session and identity and qualifications of individuals to be conducting the training.

3. Training schedule. Concurrent classes will not be allowed.

B. Due to phased testing and start-up activities, Contractor may prepare separate submittals for individual equipment items and systems. The materials shall be reviewed and accepted by the Engineer no later than 3 weeks prior to delivery of the training.

Page 788 of 2338 ends

West Yost – March 2023 01820 - 2 City of Ukiah
592-50-22-14 Training Thickening and Dewatering
Improvements
PART 2 - PRODUCTS

2.01 LESSON PLANS
A. Formal written lesson plans shall be prepared for each training session. Lesson plans shall contain an outline of the material to be presented along with a description of visual aids to be utilized during the session.

B. Each lesson plan shall contain a time allocation for each subject.

C. Furnish ten copies of the training manuals, handouts, and reference materials and one copy of necessary visual aids at least 1 week prior to each training session. These materials shall remain the property of the Owner and shall be suitably bound for proper organization and easy reproduction.

2.02 FORMAT AND CONTENT
A. Each training session shall be comprised of time spent both in the classroom and at the specific location of the subject equipment or system.

2.03 VIDEO RECORDING
A. The City may record, or retain the services of a commercial video taping service to record, each training session. After taping, the material may be edited and supplemented with professionally produced graphics to provide a permanent record.

PART 3 - EXECUTION

3.01 SCHEDULING TRAINING SESSIONS
A. Classes shall be scheduled so that classroom sessions are interspersed with field instruction in logical sequence. Consolidate short training sessions into combined sessions so that staff time is more efficiently used.

1. The minimum combined session length should be 1.5 to 2 hours. a. The maximum single or combined session length shall be 4 hours. b. Arrange to have the training conducted on consecutive days, with no more than 4 hours of classes scheduled for any one day.
c. Provide two training sessions on each system, piece of equipment, or “topic”.

B. No training sessions shall be scheduled for Mondays or Fridays. Coordinate the scheduling of training sessions with the operations superintendent.

C. The following services shall be provided for each item of equipment or system. Additional services shall be provided, where specifically required in individual specification sections. a. At a minimum, classroom equipment training for operations personnel will include:
b. Using slides and drawings, discuss the equipment’s specific location in the plant and an operational overview.
c. Purpose and plant function of the equipment.
d. A working knowledge of the operating theory of the equipment. e. Start-up, shutdown, normal operation, and emergency operating procedures, including a discussion on system integration and electrical interlocks, if any.
f. Identify and discuss safety items and procedures.

Page 789 of 2338 ends

West Yost – March 2023 01820 - 3 City of Ukiah
592-50-22-14 Training Thickening and Dewatering
Improvements
g. Routine preventative maintenance, including specific details on lubrication and maintenance of corrosion protection of the equipment and ancillary components.
h. Operator detection, without test instruments, of specific equipment trouble symptoms.
i. Required equipment exercise procedures and intervals. j. Routine disassembly and assembly of equipment if applicable (as judged by the City on a case-by-case basis) for purposes such as operator inspection of equipment.

2. At a minimum, hands-on equipment training for operations personnel will include:
a. Identify location of equipment and review the purpose. b. Identifying piping and flow options.
c. Identifying valves and their purpose.
d. Identifying instrumentation:
1) Location of primary element.
2) Location of instrument readout.
3) Discuss purpose, basic operation, and information interpretation. e. Discuss, demonstrate, and perform standard operating procedures and round checks.
f. Discuss and perform the preventative maintenance activities. g. Discuss and perform start-up and shutdown procedures. h. Perform the required equipment exercise procedures.
i. Perform routine disassembly and assembly of equipment if applicable. j. Identify and review safety items and perform safety procedures, if feasible.

3. Classroom equipment training for the maintenance and repair personnel will include:
a. Theory of operation.
b. Description and function of equipment.
c. Start-up and shutdown procedures.
d. Normal and major repair procedures.
e. Equipment inspection and troubleshooting procedures including the use of applicable test instruments and the “pass” and “no pass” test instrument readings.
f. Routine and long-term calibration procedures.
g. Safety procedures.
h. Preventive maintenance such as lubrication; normal maintenance such as belt, seal, and bearing replacement; and up to major repairs such as replacement of major equipment part(s) with the use of special tools, bridge cranes, welding jigs, etc.

4. Hands-on equipment training for maintenance and repair personnel shall include:
a. Locate and identify equipment components.
b. Review the equipment function and theory of operation. c. Review normal repair procedures.
d. Perform start-up and shutdown procedures.
e. Review and perform the safety procedures.

Page 790 of 2338 ends

West Yost – March 2023 01820 - 4 City of Ukiah
592-50-22-14 Training Thickening and Dewatering
Improvements
f. Perform City approved practice maintenance and repair job(s), including mechanical and electrical adjustments and calibration and troubleshooting equipment problems.
g. Review and use equipment manufacturers’ manuals in the hands-on training.

END OF SECTION

Page 791 of 2338 ends

West Yost – March 2023 01825 - 1 City of Ukiah
592-50-22-14 Equipment and System Testing Thickening and Dewatering Improvements
SECTION 01825

EQUIPMENT AND SYSTEM TESTING
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Requirements for the Contractor’s testing of mechanical, electrical, and instrumentation equipment and systems provided under this Contract.

B. The requirements contained in this Section supplement, but do not supersede, specific testing requirements found elsewhere in the Contract Documents.

1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section

1. Section 01330 – Submittals

2. Section 01999 – Reference Forms

1.03 COORDINATION
A. Coordinate with the equipment suppliers for functional and performance testing and facility startup. Minimum levels of on-site installation and testing assistance required of the equipment suppliers is described in separate Sections.

B. Coordinate the activities of subcontractors and equipment suppliers to implement the requirements of this Section.

1.04 SUBMITTALS
A. Prepare and submit in accordance with Section 01330.

B. Independent Testing Labs: When testing by an independent laboratory is specified, provide credentials and certifications to demonstrate capabilities.

C. Test Instruments Calibration: Certification that test instruments used in the testing procedure have been calibrated to an acceptable and recognized standard.

D. Testing Schedule: For each piece of equipment or system, provide a testing schedule and updates as appropriate. Submit at least 20 working days prior to the scheduled start of testing. Confirm the test schedule, or provide an updated schedule 4 days prior to the start of testing.

E. Testing Plan: Describe step by step procedure that will be utilized to systematically test equipment and systems.

F. Test Results:

1. Factory Test Results: Results of equipment tests performed by the equipment supplier at the point of manufacture and prior to shipping the equipment to the site.

2. Results of the Pre-Operational Test.

3. Results of the Functional Test.

4. Results of the Operational and Performance Tests.

G. Testing Form

1. Section 01999 contains a sample Instrumentation Data and Calibration Test Form showing the format and level of detail required for the documentation forms.

Page 792 of 2338 ends

West Yost – March 2023 01825 - 2 City of Ukiah
592-50-22-14 Equipment and System Testing Thickening and Dewatering Improvements
H. Manufacturer’s Field Certification

1. Submit a Manufacturer’s Installation Certification Form (Section 01999) after the manufacturer’s Field Representative has completed the specified field services and testing. Submit the certification prior to Manufacturer's Representative leaving the plant site.

1.05 DOCUMENTATION REQUIREMENTS
A. Develop and implement a records keeping system to document compliance with the requirements of this Section.

B. Document date of test, equipment number or system name, nature of test (performance or operational), test objectives, test results and test instruments used during the test. Provide signature spaces for the Engineer and the Contractor.

1.06 TEST PLANS
A. Develop test plans in cooperation with the equipment suppliers detailing the coordinated, systematic testing of each item of equipment and system provided under this Contract.

B. Make test plans specific to the item of equipment or system to be tested. Identify by specific equipment or tag number each device or control station to be manipulated, observed or tested during the test procedure and the specific results to be observed or obtained.

C. Identify the responsibility of subcontractors and suppliers who will participate in the tests and list the names of manufacturers’ representatives to be present during the duration of the test.

D. Provide step-by-step procedures for testing control and electrical circuits to affirm that the circuit is properly identified and connected to the proper device.

E. Undertake performance tests in a manner that will duplicate the actual operating conditions that will be encountered.

1.07 TESTING SCHEDULE
A. Prepare a testing schedule setting forth the sequence contemplated for performing the test work. Identify the contemplated start date, duration of the test and completion of each test.

1.08 TEST RESULTS
A. Test results shall be within the tolerances set forth in the detailed specification sections of the Contract Documents. If no tolerances have been specified, test results shall conform to tolerances established by recognized industry practice.

B. Retesting: If any portion of the work should fail to fulfill the Contract requirements and is adjusted, altered, renewed, or replaced, tests on that portion, together with all other portions of the work as are affected thereby, shall be repeated within reasonable time and in accordance with the specified conditions.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION

3.01 GENERAL
A. The objective of the testing program is to demonstrate, to the Engineer’s complete satisfaction, that the systems and equipment provided under this Contract meet the specified performance requirements.

Page 793 of 2338 ends

West Yost – March 2023 01825 - 3 City of Ukiah
592-50-22-14 Equipment and System Testing Thickening and Dewatering Improvements
B. Testing program also provides a base-line operating condition for the Owner to use in a preventative maintenance program.

C. Testing sequence consists of Pre-Operational Checkout, Functional Tests, Performance Testing and Operational Testing. These tests are required regardless of whether Factory Tests were conducted on the same piece of equipment or system.

D. Each item of mechanical, electrical, and instrumentation equipment installed under this Contract shall be tested by the Contractor to demonstrate compliance with the performance requirements of this project.

E. Provide labor, outside services, materials, test equipment and other items required to complete the specified testing and startup requirements. Furnish power, water chemicals, fuel, oil, grease and other materials needed to conduct the specified tests.

F. Install temporary valves, gauges, piping and other materials required to conduct the specified tests.

3.02 PRE-OPERATIONAL CHECKOUT
A. Pre-Operational Checkout shall be undertaken by the manufacturer’s field representative.

B. Pre-Operational Checkout includes basic checks of the equipment installation prior to starting the equipment to determine if the equipment and related components have been correctly installed and is ready for starting.

C. Pre-Operational Checkout includes the following:

1. Alignment of equipment, shafts and shaft couplings, drives, belts and pulleys.

2. Filling and checking lubrication reservoirs.

3. Checking shaft seals, packing and seal lubrication system.

4. Manufacturer’s recommendations for pre-start preparation.

5. Proper motor rotation

6. Circuit continuity testing, electrical testing, and instrumentation and control system testing in accordance with the requirements of Division 16.

7. Demonstrate operational controls function as intended.

8. Calibration and adjustment of electrical and instrumentation devices.

D. Verify tanks, pipes, conduits, vessels and equipment are clean and free of debris that may interfere with the testing or operation of the equipment. Remove debris prior to start of testing.

E. Following completion of the Pre-Operational Checkout, the manufacturer’s field representative shall complete and sign a field certification form and submit to the Engineer.

3.03 FUNCTIONAL TESTS
A. After successful completion of the Pre-Operational Checkout, start individual items of equipment and systems and operate under simulated operating conditions to determine as nearly as possible whether the equipment and systems meet the requirements of these specifications.

B. Operate the equipment for a sufficient period of time to determine machine operating and characteristics, including noise, temperatures and vibration; to observe and document performance characteristics; and to permit initial adjustment of operating controls.

Page 794 of 2338 ends

West Yost – March 2023 01825 - 4 City of Ukiah
592-50-22-14 Equipment and System Testing Thickening and Dewatering Improvements
C. Obtain baseline operating data on all equipment with motors greater than 10 horsepower to include amperage draw, bearing temperatures, and vibration as required. This baseline data will be collected for the Owner to enter in their preventive maintenance system.

D. Post-Test Inspection: When Functional Tests have been completed, recheck equipment for proper alignment, unacceptably loose connections, unusual movement, or other indications of improper operating characteristics. Correct any deficiencies to the satisfaction of the Engineer.

E. Machines or devices which exhibit unusual or unacceptable operating characteristics shall be disassembled and inspected. Repair any defects found during the course of the inspection and identify and correct the cause of such defect. Replace specific parts, or the entire equipment item, to the complete satisfaction of the Engineer at no cost to the Owner.

3.04 OPERATIONAL AND PERFORMANCE TESTS
A. After successfully completing functional tests, conduct an operational test of each system to verify correct operation. During the operational test, conduct performance testing to verify that the system complies with the performance requirements contained in the individual equipment specifications.

B. Owner’s operating personnel will fill process units and process systems with water and other process fluids to allow the Contractor to conduct the operational tests.

C. Upon completion of the filling operations, operate all parts of each system for a continuous, uninterrupted period of not less than 8 hours. During this period, the Contractor and shall undertake performance testing and shall monitor the characteristics of each machine according to manufacturer information and specifications and report any unusual conditions to the Engineer.

D. Undertake performance tests of mechanical, electrical, HVAC, and instrumentation equipment and systems to demonstrate and confirm compliance with the performance requirements specified in the individual equipment specifications.

E. Should the operational testing be halted for any reason related to the facilities constructed or the equipment furnished under this Contract, the operational testing program shall be repeated until the specified continuous period has been accomplished without interruption.

F. Following successful completion of the Operational Test, commissioning of the system may begin.

END OF SECTION

Page 795 of 2338 ends

West Yost – March 2023 01890 - 1 City of Ukiah
592-50-22-14 Restoration of Improvements Thickening and Dewatering Improvements
SECTION 01890

RESTORATION OF IMPROVEMENTS
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Restoration of work areas after installation and construction of new facilities.

1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section

1. Section 02740 Asphalt Paving
PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION

3.01 STRUCTURES
A. Take precautions to protect the integrity and usefulness of existing facilities.

B. If necessary, remove existing structures including curbs, gutters, pipelines, and utility poles, as necessary for the performance of the work.

1. Repair existing structures that are damaged as a result of the Work under this contract

2. Rebuild or replace the structures in as good a condition as originally found.

3.02 ROADS AND STREETS
A. Asphalt pavement that has been removed, broken, or damaged, or in which the ground has caved or settled during the work under this contract, shall be brought to original grade and section and resurfaced.

B. Before resurfacing material is placed, sawcut edges of pavement to provide clean solid vertical faces.

C. Complete pavement repair in accordance with Section 02740 and in accordance with the requirements of the affected agencies and parties.

3.03 CULTIVATED AREAS AND OTHER SURFACE IMPROVEMENTS
A. Restore cultivated or planted areas and other surface improvements damaged by construction as nearly as possible to their original condition.

B. Repair existing guard posts, barricades, and fences that are damaged.

C. Replace damaged plantings with new plantings of the same type or as acceptable to the Owner

3.04 PROTECTION OF EXISTING INSTALLATIONS
A. Immediately repair or replace existing equipment, controls, structures, or facilities which are damaged as part of the Work.

B. Take measures that are necessary to ensure that construction debris and materials are kept out of the wastewater system.

Page 796 of 2338 ends

West Yost – March 2023 01890 - 2 City of Ukiah
592-50-22-14 Restoration of Improvements Thickening and Dewatering Improvements

END OF SECTION

Page 797 of 2338 ends

West Yost – March 2023 01999 - 1 City of Ukiah
592-50-22-14 Reference Forms Thickening and Dewatering
Improvements
SECTION 01999

REFERENCE FORMS
The forms listed below and included in this section are referenced from other sections of the project manual. Contractor may submit equivalent forms for Owner’s approval prior to use. If Owner does not approve substitute form, Contractor must use forms found in this Section. Owner will provide Contractor electronic files of prescribed forms upon request.

Referenced In Section Title of Form
09960, 10520 Extended Warranty Form
01825 Instrumentation Data and Calibration Record Test Form 01825, 11000, Manufacturer’s Installation Certification Form 15996 Pipe Test Record Form
01330 Proposed “Or Equal” Substitution Transmittal
01330 Submittal Transmittal
01140 System Outage Request (SOR)
09960, 11241 Unit Responsibility Certificate

Page 798 of 2338 ends

West Yost – March 2023 01999 - 2 City of Ukiah
592-50-22-14 Reference Forms Thickening and Dewatering
Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 799 of 2338 ends
Page 1 of 1 ends

Extended Warranty Form

EXTENDED WARRANTY FORM
(For Equipment, Material, Process)
Extended Warranty For: Product Name
Specification Section No.

Product Manufacturer
Project:

Location:

We hereby guarantee the Product Name that we have constructed for a period of # of Years (#) year(s), as specified in the Section noted above, from Date, the date of acceptance of the work/substantial completion and the assumption of occupancy and beneficial use by the Name of Owner.

The following are excluded from the provisions of this warranty:

We agree that if any of the equipment, material, or process designated for Product Name should fail due to any reason other than improper maintenance or improper operation, or should any portion of the work fail to fulfill any of the requirements of the Specifications, we will, within ten days after written notice of such defects, commence to repair or replace the same together with any other work which may be damaged or displaced in so doing.

In the event of our failure to comply with the above mentioned conditions within a reasonable time after being notified, or should exigent circumstances require repairs or replacements to be made before we can be notified or respond to notification, we do hereby authorize the Name of Owner to proceed to have the defect repaired and made good at our expense, and we will pay the cost therefor upon demand.

The warranty provided herein shall not be in lieu of, but shall be in addition to any warranties or other obligations otherwise imposed by the Contract Documents and by law.

Manufacturer: Contractor:

Signed: Signed:

Title: Title:

Date: Date:

Phone: Phone:

E-mail: E-mail:

Page 800 of 2338 ends
Page 1 of 1 ends

Instrumentation Data and Calibration Test Form

INSTRUMENTATION DATA AND CALIBRATION RECORD TEST FORM
Component Description
Component Tag Name
Manufacturer Location
Name Site
Model
Serial # Equip
Range Unit General Notes
1) Attach Calibration Curves for dp Flowmeters
2) Include mounting elevations for level Instruments
3) All entries within solid box to be typed in prior to start of test
Indicator Range
Input Range
Output Range
Designed Calibration Measured Calibration
Input
Signal Output
Eng.

Value Input Output Comments
Notes:

Tested by Witnessed by
(print name) (print name)
Signature Signature
Date Date

Page 801 of 2338 ends
Page 1 of 1 ends

Manufacturer’s Installation Certification

MANUFACTURER'S INSTALLATION CERTIFICATION FORM
Contract No: Specification Section:

Equipment Name
Contractor:

Manufacturer of Equipment Item:

The undersigned manufacturer of the equipment item described above hereby certifies that he has checked the installation of the equipment and that the equipment, as specified in the project manual, has been provided in accordance with the manufacturer's recommendations and that the trial operation of the equipment item has been satisfactory.

Comments:

Date Manufacturer
Signature of
Authorized Representative
Date Contractor
Signature of
Authorized Representative

Page 802 of 2338 ends
Page 1 of 1 ends

Pipe Test Record

PIPE TEST RECORD
Date:

Project Name: Project No.:

Contractor:

Pipeline Size & Name Pipe Type Pipe Location/Description (SL), SN, IA, etc.) (DI, PVC, Steel, Copper, etc.) (Attach sketch if needed) Section Tested: First Test ☐
Or
Re-Test ☐
Length of Pipe Tested:

From:

To: Ft.

Test Specifications Actual Test Results
Type of Test: Start pressure:

Specified Test
Pressure: End Pressure:

Duration:

Start time Stop time Duration
Allowable loss: Actual loss:

Comments:

Test Passes ☐
Test Fails ☐
Tested By:

Contractor
Test Witnessed By:

Construction Inspector

Page 803 of 2338 ends
Page 1 of 2 ends

Proposed Substitution
PROPOSED “OR EQUAL” SUBSTITUTION SUBMITTAL TRANSMITTAL
Proposed “Or Equal Substitution Submittal Description
Priority Level: ☐ Low ☐ Medium ☐ High ☐ On Critical Path Proposed “Or Equal” Substitution Item or Service
A. When the first specified item is followed by a second maker's name and "or equal," the Contractor may submit Proposed Equivalent items for the Engineer's review. Proposed “Or Equal” Substitution items that are in the Engineer's judgment equal to the first specified item in quality, utility, and appearance, will be Favorably Reviewed.

Where a product description and first maker's name is followed by "or equal" with no second maker's name, it means the Engineer knows of no equivalent product and the Contractor may submit Proposed Equivalent products by other makers for review. Where the term "or equal" is omitted, it means that the named item is required to meet the Owner's needs; no products or makers other than those specified will be considered.

B. This request shall include adequate technical information to fully describe the function and quality of the item.

Submittals of Proposed “Or Equal” Substitution items that are not made within thirty (30) calendar days of the Notice to Proceed date will be rejected unless the Owner has agreed in writing to a later submittal date and the Contractor agrees to comply with all conditions of the Owner for the late submittal. If the Contractor's second attempt to obtain Favorable Review of a Proposed “Or Equal” Substitution item is unsuccessful, the Contractor shall submit the first specified item.

C. Inclusion of a second maker's name indicates the maker is acceptable but does not necessarily indicate the maker offers a standard product equal to the first specified item. Items by the second named maker are subject to the same conditions of review and compatibility as other Proposed “Or Equal” Substitution items. Inclusion of a maker's name and/or model number after a specification description is not a representation that the maker will furnish an item meeting the Contract requirements at bid time or at time of need. It is the Contractor's sole responsibility to furnish items meeting the Contract requirements.

D. The Engineer's review of Proposed “Or Equal” Substitution items is based solely on information provided by the Contractor and on the Contractor's warranty that the proposed item is equal in quality, utility, function and appearance to the first specified item. Favorable Review of a Proposed “Or Equal” Substitution item has the same meaning and is subject to the same limitations that apply to the Favorable Review of Product Data and Shop Drawings described in the Contract Documents.

E. Submit with proposal:

1. Description of item being proposed including the Manufacturer's model or product number.

2. Manufacturer's representation that the proposed “or equal” substitution item or service is equal to or superior to specified item in all respects.

3. Manufacturer's product data.

4. Information about several recent similar installations, including project name, owner's name, address, telephone number, and name of knowledgeable person to contact for information on performance of the product.

Submittal No.
☐ 1st Submission ☐Re-Submittal
Spec Section
Dwg/Detail No.

Owner: Routing Date
Sent
Date
Received
Project Name:

Contractor/CM
CM/Design Consultant
Contractor:

Design Consultant/CM
CM/Contractor

Page 804 of 2338 ends
Page 2 of 2 ends

Proposed Substitution

5. Whether a reduction in the Contract Price is being proposed. If so, provide a detailed cost breakdown substantiating the cost reduction. Consideration should be given to all extra costs and expenses necessary to make the proposed “or equal” substitution meet or exceed the all requirements found in the Contract Documents.

6. Whether a reduction in the Contract Time is being proposed. If so, provide schedule analysis substantiating the reduction in contract time and assumptions made in the schedule analysis.

7. Explain all known differences between the product specified and the Proposed “Or Equal” Substitution.

Explanation to consider such items as:
a) Does the substitution affect dimensions shown on Drawings? b) Are the manufacturer's guarantees and warranties on the proposed substitution items identical to those on the specified items? If there are differences, please specify each and every difference in detail. c) Does the proposed “or equal” substitution impact other contractors, trades or suppliers? d) Is the proposed “or equal” substitution compatible with all other interrelated equipment, materials and products?
e) Any differences in Operations and Maintenance costs? f) Any differences in available factory authorized repair centers with regards to response times and geographic location?
g) Will use of proposed “or equal” substitution be subject to any license fee or royalty? h) Are there any color or pattern differences? If so, provide color and pattern samples? The undersigned hereby:

1. Certifies that he/she has thoroughly investigated the Proposed “Or Equal” Substitution item or service and has determined that the function/utility, appearance and quality of the Proposed “Or Equal” Substitution item or service are equivalent or superior to those of the specified item;

2. Certifies that the Proposed “Or Equal” Substitution item or service is compatible with all interrelated equipment, materials, products and services unless otherwise explained in specific detail in this submittal;

3. Agrees to coordinate installation and make all other changes that may be required for Work to be complete in all respects at no additional cost to the Owner;

4. Waives all claims for additional costs and contract time due to late ordering of the specified products or services caused by requests for “Or Equal” Substitutions that are subsequently rejected by the Engineer;

5. Represents and warrants that the Contractor is solely responsible for any extra cost or expense necessary to make the Proposed “Or Equal” Substitution item or service fully equivalent to and compatible with the Contract Documents and will meet or exceed the Engineer’s design intent;

6. Agrees to compensate the Owner for all additional redesign costs associated with the Proposed “Or Equal” Substitution item or service and the cost of the Engineer’s review of the Proposed “Or Equal” Substitution item or service;

7. Waives all claims for additional costs and contract time which may subsequently become apparent; and

8. Agrees to comply with all additional requirements imposed by the Owner and Engineer should the Proposed “Or Equal” Substitution item or service is approved.

Submitted by:

Contractor:

Name:

Signature: Title:

Date:

Page 805 of 2338 ends
Page 1 of 1 ends

Submittal Transmittal

SUBMITTAL TRANSMITTAL
Submittal Description
Priority Level: ☐ Low ☐ Medium ☐ High ☐ On Critical Path We are sending you: ☐ Attached ☐ Under separate cover via ☐ Submittals for review and comment
☐ Product Data for information only
No.

Copies Description Manufacturer Reviewer Action
Reviewer
Initials
The Action Designated Above is in
Accordance with the Following Legend:

A – No Exceptions Taken
B – Make Corrections Noted
C – Amend and Resubmit
D – Rejected
E – Review not Required
CONTRACTOR: Must certify one of the following statements pertaining to the transmittal or submittal sent for review:
☐ As the General Contractor for this project we certify that the material or equipment contained in this submittal meets all the requirements, including coordination with all related work specified (no exceptions) ☐ As the General Contractor for this project we certify that the material or equipment contained in this submittal meets all the requirements specified except for the attached deviations.

Comments:

Certified by:
(Contractor’s Signature)
Submittal No.
☐ 1st Submission ☐Re-Submittal
Spec Section
Dwg/Detail No.

Owner: Routing Date
Sent
Date
Received
Project Name: Contractor/CM
CM/Design Consultant
Contractor: Design Consultant/CM
CM/Contractor

Page 806 of 2338 ends
Page 1 of 1 ends

System Outage Request

SYSTEM OUTAGE REQUEST FORM
System to be Shutdown: SOR No.:

Date of Shutdown: Beginning at: am/pm
Duration of Shutdown: Critical Path Activity? ☐ yes ☐ no Owner: Routing
Date
Sent
Date
Received
Project: Contractor/CM
Contractor: CM/Owner-Operations
Regulatory Agency Notification Required? ☐ yes ☐ no
Combustible/Hazardous Gases Present? ☐ yes ☐ no
Is a Dry Run Required? ☐ yes ☐ no
Confined Space Entry? ☐ yes ☐ no
Describe work to be performed including detailed sequence of events, safety plan, protection of existing facilities, equipment to be used and contingency plan. Use additional sheets as necessary.

Will you require assistance from Owner Operations? ☐ yes ☐ no Note: Existing valves and controls shall be operated by Owner staff only Outage Contact
Information Name of Person on Call/Duty Home Phone Cell Phone Contractor
Construction Manager
Owner Operations
Design Consultant
Additional Contractor Comments: CM / Owner / Design Consultant Review Action ☐ SOR Acceptable with comments noted on attached.
☐ SOR Not Acceptable with reasons noted on
attached. Re-Submittal is required.

Certified by:
(Contractor’s Signature) (Construction Manager’s Signature) Date

Page 807 of 2338 ends
Page 1 of 1 ends

Unit Responsibility Certificate
Name of Owner

CERTIFICATE OF UNIT RESPONSIBILITY
For Specification Section
Section Number and Title
In accordance with the contract documents, the undersigned manufacturer accepts unit responsibility for all components of equipment furnished under specification Section Section #. We hereby certify that these components are compatible and comprise a functional unit suitable for the specified performance and design requirements.

Name of Corporation
Street Address
City, State and Zip Code
By:

Notary Public Duly Authorized Official
Commission Expiration Date Name
Title
Seal: Date:

Page 808 of 2338 ends

West Yost – March 2023 01999 - 12 City of Ukiah
592-50-22-14 Reference Forms Thickening and Dewatering
Improvements

END OF SECTION

Page 809 of 2338 ends

West Yost – March 2023 02200 - 1 City of Ukiah
592-50-22-14 Site Preparation Thickening and Dewatering Improvements
SECTION 02200

SITE PREPARATION
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Site preparation work, as follows:

1. Locating existing facilities.

2. Installing safety and protective barriers.

3. Constructing temporary access roads, work areas and storage areas.

4. Clearing, grubbing, stripping, top soil removal and other initial work required for earthwork and trenching operations.

1.02 REFERENCED SECTIONS
A. The following Section is referenced in this Section

1. Section 01330 – Submittals

1.03 DEFINITIONS
A. Clearing: Consists of removal of natural obstructions and man-made objects and features including foundations, buildings, fences, lumber, stumps, debris, rubbish, brush, trees, boulders, and other items that interfere with construction operations or are specifically designated for removal.

B. Stripping: Includes the removal and disposal of sod, grass, weeds, roots, and other organic material remaining after clearing has been completed.

1.04 SUBMITTALS
A. Comply with Section 01330.

B. Submit:

1. Materials used and layout of temporary fences

2. Proposed staging and stockpile locations.

PART 2 - PRODUCTS

2.01 TEMPORARY FENCES
A. Type: Heavyweight, high visibility, flat laminar mesh design.

B. Material: High-density polyethylene.

C. Height: 48 inches.

D. Posts: Wood or metal posts at 10-foot spacing. Secure fence to posts with plastic cable ties.

Page 810 of 2338 ends

West Yost – March 2023 02200 - 2 City of Ukiah
592-50-22-14 Site Preparation Thickening and Dewatering Improvements
PART 3 - EXECUTION

3.01 LOCATING EXISTING FACILITIES
A. Review the design drawings, maps, and other sources of information and identify existing facilities at the site to determine and mark the approximate locations of underground facilities.

3.02 SAFETY AND PROTECTIVE BARRIERS
A. Provide protective concrete slabs, steel plates or encasements for existing buried facilities that may be damaged by Contractor’s equipment and vehicles.

3.03 PRIMARY SITE ACCESS, WORK AND STORAGE AREAS
A. Develop primary access routes, work areas and storage areas as indicated on the Drawings.

B. Clean up areas at the conclusion of the project and return the areas to their original or better condition.

3.04 CLEARING
A. Clear construction areas of objectionable items and material, which, if left in place, would interfere with the proper performance of the work.

B. Remove loose boulders within 10 feet from the tops of cut slopes. Incorporate boulders into landscaping or remove from the site.

C. Dispose of material from clearing operations in an acceptable off-site location.

3.05 STRIPPING
A. Remove the top layer of soil containing sod, grass, weeds and other vegetation to a depth of 6 inches from areas that will be affected by construction and site grading operations.

B. Extend stripped areas at least 4 feet beyond the limits of cut and fill areas.

C. Dispose of stripped material in an acceptable off-site location.

3.06 REMOVAL OF EROSION CONTROL DEVICES
A. Remove erosion control devices when bare soils are sufficiently revegetated to prevent onsite or off-site soil erosion.

B. Straw wattles containing plastic netting, including plastic specified as phot-degradable, may not remain on site. Remove entire wattle or remove and dispose of plastic netting and spread straw from wattle across vegetated areas of site.

END OF SECTION

Page 811 of 2338 ends

West Yost – March 2023 02221 - 1 City of Ukiah
592-50-22-14 Demolition, Salvage and Abandonment Thickening and Dewatering Improvements
SECTION 02221

DEMOLITION, SALVAGE AND ABANDONMENT
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Demolition, salvage and abandonment of existing facilities.

1.02 REFERENCED SECTIONS
A. The following Section is referenced in this Section

1. Section 01330 – Submittals

2. Section 02300 – Earthwork

1.03 SUBMITTALS
A. Comply with Section 01330.

B. Description of removal procedures for careful removal of materials and equipment and the protection of facilities which are to remain undisturbed.

C. Time schedule for demolition work. Show demolition in relation to new construction, including any temporary facilities.

1.04 EXISTING CONDITIONS
A. Prior to the submittal of Bids, Contractor shall visit the site and inspect all facilities to become familiar with existing conditions and utilities.

1.05 REGULATORY REQUIREMENTS
A. Dispose of debris offsite in accordance with the requirements of agencies having jurisdiction.

B. Comply with applicable air quality control regulations.

C. Obtain necessary permits for building demolition, transportation of debris to disposal site(s) and dust control.

D. Erect appropriate safety devices to protect the general public, Owner’s operations personnel, and workers from the hazards of demolition activities. Install barriers, guard rails and fences, and provide appropriate warning signs.

1.06 BURNING
A. The use of burning at the project site for the disposal of refuse, debris, and waste materials will not be permitted.

PART 2 - PRODUCTS (NOT USED)
PART 3 - EXECUTION

3.01 GENERAL
A. The Drawings identify the major equipment and facilities to be demolished, salvaged or abandoned. Auxiliary utilities such as water, air, drainage, lubrication oil, electrical wiring, controls, and instrumentation are not necessarily shown. Remove auxiliary utilities, as well

Page 812 of 2338 ends

West Yost – March 2023 02221 - 2 City of Ukiah
592-50-22-14 Demolition, Salvage and Abandonment Thickening and Dewatering Improvements
as equipment and pipe supports and associated instrumentation devices pertaining to piping or equipment designated to be removed.

3.02 PROTECTION OF EXISTING FACILITIES
A. Before beginning any cutting, trenching, or demolition work, carefully survey the existing work and examine the Contract Documents to determine the extent of the Work.

B. Take precautions to prevent damage to facilities which are to remain in place or are to be salvaged, and be responsible for any damages to these facilities resulting from this work.

Repair or replace damages to such work to return the facilities to its pre-existing condition at no additional cost to the Owner.

3.03 DEMOLITION
A. Demolish structures and equipment in an orderly and safe manner.

B. Dispose of material not identified for salvage or re-installation at a new location.

C. Minimize dust by sprinkling with water.

D. Backfill excavations caused by demolition in accordance with Section 02300.

3.04 SALVAGE
A. Carefully remove and salvage, for reuse by the Owner, the following items:

1. Three (3) existing air compressors
B. Remove salvage items in their largest pieces that can be easily handled and stored by Owner’s personnel. Remove these items from their existing location and deliver them to a location designated by the Owner.

C. Remove items to be salvaged in a workmanlike manner and take the necessary precautions to prevent damage to the materials and equipment.

3.05 BURIED PIPELINES
A. Where buried pipelines are shown to be removed on the Drawings, they may be abandoned in place if there is no conflict with proposed construction and they are not located under or within 10 feet of any proposed structure.

3.06 ASBESTOS CEMENT PIPE
A. Remove and dispose of asbestos cement pipe disturbed during the performance of the Work. Remove and dispose in accordance with all Federal, State and local laws, regulations, requirements and guidelines.

B. Notify all appropriate authorities prior to performing work related to removal and disposal of asbestos cement pipe.

C. Provide landfill disposal weight records to Engineer for use as the basis of unit price payment.

D. Where necessary to connect into existing City asbestos cement potable water lines, perform work in accordance with all Federal, State and local laws, codes, requirements and guidelines.

3.07 DISPOSAL OF DEMOLISHED MATERIALS
A. Concrete, site debris, rubbish, and other materials resulting from demolition operations, as well as mechanical and electrical equipment designated to be demolished, shall be the property of the Contractor and shall be legally disposed of at the Contractor’s expense.

Page 813 of 2338 ends

West Yost – March 2023 02221 - 3 City of Ukiah
592-50-22-14 Demolition, Salvage and Abandonment Thickening and Dewatering Improvements

3.08 CLEANING
A. During and upon completion of the demolition operations, promptly remove unused tools and equipment, surplus materials, rubbish, debris, and dust and shall leave work areas in a clean condition.

B. Do not sweep, grade, or flush surplus materials, rubbish, or debris into storm drains, channels, lakes, or streams.

END OF SECTION

Page 814 of 2338 ends

West Yost – March 2023 02221 - 4 City of Ukiah
592-50-22-14 Demolition, Salvage and Abandonment Thickening and Dewatering Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 815 of 2338 ends

West Yost – March 2023 02241 - 1 City of Ukiah
592-50-22-14 Control of Water Thickening and Dewatering Improvements
SECTION 02241

CONTROL OF WATER
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Control of surface water and excavation drainage.

B. Protection of the work against surface runoff, and exfiltration from existing pipes and structures.

C. Collection, treatment, and disposal of removed water.

1.02 DEFINITIONS
A. Excavation drainage includes keeping excavations free of surface water, seepage water, and exfiltration from existing pipes and structures.

B. Surface drainage includes use of temporary drainage ditches and dikes and installation of temporary culverts and sump pumps with discharge lines as required to protect the work from any source of surface water.

C. Construction Water: surface or groundwater that is subject to removal by the Contractor as necessary to complete the work.

1.03 PERMITS
A. Obtain and comply with all permits for the control and disposal of surface and groundwater B. Pay all associated fees.

C. Obtain coverage under the North Coast Regional Water Quality Control Board Dewatering and other Low Threat Discharges to Surface Waters General Permit (Order No. R5-2013- 074, NPDES No. CAG995001, if appropriate, for any dewatering activity, including removal and discharge of groundwater, accumulated rainwater and removal of water from cofferdams or diversions.

D. Comply with the conditions of the General Permit for Dewatering Activities and Caltrans BMP# NS-2 Dewatering Operations.

PART 2 - PRODUCTS

2.01 FACILITIES AND EQUIPMENT
A. Provide necessary facilities and equipment for controlling surface water and excavation drainage as necessary to complete the Work.

PART 3 - EXECUTION

3.01 SURFACE AND EXCAVATION DRAINAGE WATER CONTROL
A. Perform surface and excavation drainage water control in conformance with regulatory requirements as modified herein.

B. Have available, on hand at all times during excavation activities,

1. Sufficient pumping equipment and labor necessary to keep excavations clear of water as necessary to complete Work as specified

Page 816 of 2338 ends

West Yost – March 2023 02241 - 2 City of Ukiah
592-50-22-14 Control of Water Thickening and Dewatering Improvements

2. Adequate standby equipment as may be necessary to keep the control of water operation in full effect due to equipment or power failure.

C. Commence control of water at an appropriate time during excavation and continue until facilities and structures are installed and backfilled and are sufficiently protected from the effects of hydrostatic uplift or floatation.

D. Intercept surface and excavation water and divert it away from excavations through use of dikes, ditches, curb walls, pipes, sumps or other approved means. The requirement includes temporary works required to protect adjoining properties from surface drainage caused by construction operations
E. Excavations extending below groundwater levels or encountering perched groundwater.

1. Where possible, direct inflow to a sump where water can be removed by a pump within narrow trench excavations that penetrate less than a few feet below the groundwater level and do not encounter loose or cohesionless soils.

2. Provide well points, perimeter trench drains, or deep sumps as necessary to control of water within wider, deeper, and/or more extensive excavations.

3. To maintain bottom stability of wider, deeper, or more extensive excavations, draw down groundwater levels a minimum of 5 feet below the lowest portion of the excavation.

F. Control water in such a manner as to preserve the undisturbed bearing capacity of the subgrade soils at proposed bottom of excavation and protect temporary excavation slope stability during construction.

1. If foundation soils are disturbed or loosened by the upward seepage of water or an uncontrolled flow of water, excavate and replace the affected areas with drain rock on geotextile fabric at no additional cost to the Owner.

3.02 DISPOSAL OF WATER
A. Construction water may be disposed into existing sewer, subject to prior approval from the City.

B. Design and control the dewatering operations such that disposal of water does not cause erosion or other damage and such that water to be disposed of is free from silt and other objectionable materials.

C. Use settling basins and/or other means to control groundwater quality prior to discharge as necessary.

D. Follow the applicable construction activity Best Management Practices (BMP) for the project.

E. Refer to "Caltrans Storm Quality Handbooks, Construction Site Best Management Procedures Manual", May 2017 or latest edition.

3.03 TERMINATION OF DEWATERING
A. Terminate control of dewatering operations in such a manner as to maintain the undisturbed state of the natural foundation soils, prevent disturbance of compacted backfill and prevent flotation or movement of structures, pipelines, and sewers.

B. If damage occurs due to improper termination of dewatering, repair the damage to the satisfaction of the Engineer and at no additional cost to the Owner.

C. Remove control of water devices following completion of the Work requiring control of water.

END OF SECTION

Page 817 of 2338 ends

West Yost – March 2023 02260 - 1 City of Ukiah
592-50-22-14 Excavation Support and Protection Thickening and Dewatering Improvements
SECTION 02260

EXCAVATION SUPPORT AND PROTECTION
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Temporary excavation support systems.

1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section

1. Section 01330 – Submittals

2. Section 02300 – Earthwork

1.03 DEFINITIONS
A. Protection Systems:

1. Sloping or benching systems for excavated slopes.

2. Structural support systems, shield systems, and other systems for preventing excavation wall failure.

1.04 SUBMITTALS
A. Prepare and submit in accordance with Section 01330.

B. Submit information as a complete package. Include all items required by the Contract Documents. Incomplete submittals will not be reviewed and will be returned for resubmittal as a complete package.

C. Shop Drawings

1. Prepared, signed and sealed by a professional engineer who is registered to practice in the state of California.

2. Clearly indicate structural sections of shoring members, welding details, bolting details and bracing details.

3. Indicate existing and new structures, pipelines and other improvements located in the vicinity and impacting the design of the shoring system.

4. Provide details for bracing, reinforcement and sealing around penetrations.

D. Calculations: Structural calculations verifying and demonstrating the structural safety and adequacy of the sheeting, shoring and bracing to be used.

1. Prepared, signed and sealed by a registered Professional Civil or Structural Engineer who is registered to practice in the State of California

2. Provide calculations for the different load, support and other conditions that occur during the sequence of installation, construction of facilities protected by the shoring and the sequence of removal of the internal bracing and shoring.

1.05 INSTALLER QUALIFICATIONS
A. Shoring installer must have a minimum of five successful past installations of shoring systems of comparable overall heights and comparable penetration of soils similar to those found on the project site.

Page 818 of 2338 ends

West Yost – March 2023 02260 - 2 City of Ukiah
592-50-22-14 Excavation Support and Protection Thickening and Dewatering Improvements

1.06 PERFORMANCE REQUIREMENTS
A. Design and install excavation support and protection systems that are capable of:

1. Supporting excavation sidewalls and bottom to maintain the required excavation or trench section.

2. Resisting soil and hydrostatic pressure and superimposed construction loads and other live loads.

3. Protecting existing facilities in the vicinity of the excavation from damage due to settlement or movement of soil
B. Provide professional engineering services necessary to assume engineering responsibility, including preparation of Shop Drawings and a comprehensive engineering analysis by a qualified professional engineer registered in the State of California.

C. Install and remove excavation support and protection systems without damaging existing buildings, pavements, utilities, railroad facilities and other improvements adjacent to excavation.

D. Excavations

1. Protect workers from hazard of caving ground and other hazards.

2. Install excavation protection system in locations where:
a. Protection system is specifically indicated on the Drawings. b. Excavations are equal to, or greater than, 5 feet deep. c. Excavations are less than 5 feet deep, but there is a potential for cave-in. d. When engineering analyses prepared by the Contractor indicate the stability of existing structures and facilities may be jeopardized by settlement or movement of soil.

1.07 GENERAL DESIGN REQUIREMENTS
A. Design excavation support systems to meet requirements and standards of the Occupational Safety and Health Administration (OSHA).

B. Design excavation support systems to meet the requirements of California Code of Regulations, Title 8 – Construction Safety Orders and California Labor Code Sections 6705 to 6707.

C. Design structural steel members in accordance with the American Institute of Steel Construction (AISC) Manual of Steel Construction Allowable Stress Design and the Uniform Building Code.

D. Excavation support systems for trench excavations shall be selected by the Contractor based on the soil conditions, depths of trench excavations, groundwater conditions and other site conditions. No attempt has been made by Engineer to define acceptable trench shoring options.

1.08 GEOTECHNICAL REPORT
A. A geotechnical report has not been prepared for this Project. Previous geotechnical reports are included for information.

1.09 JOB SITE POSTINGS
A. Maintain at least one copy of the protection system design at the job site while the excavation is open in accordance with the requirements of California Code of Regulations, Title 8 Construction Safety Orders and the California Labor Code.

Page 819 of 2338 ends

West Yost – March 2023 02260 - 3 City of Ukiah
592-50-22-14 Excavation Support and Protection Thickening and Dewatering Improvements

1.10 SEQUENCE AND SCHEDULING
A. Do not begin excavations or installation of excavation supports until submittals for excavation support systems have been accepted by the Engineer and until materials necessary for installation are on site.

B. Allow a minimum of 15 calendar days for Engineer’s review of submittals for excavation support systems.

C. Do not begin excavations or installation of excavation supports until initial survey measurements on control points on existing structures and other improvements are obtained to document initial elevations and locations.

PART 2 - PRODUCTS

2.01 MATERIALS
A. General: Provide materials that are either new or in serviceable condition.

B. Structural Steel Soldier Beams: ASTM A36, ASTM A690 or ASTM A992.

C. Steel Sheet Piling: ASTM A328, ASTM A572 or ASTM A690; with continuous interlocks.

PART 3 - EXECUTION

3.01 PREPARATION
A. Prior to beginning installation of the excavation support system, pothole to locate existing buried utilities in the vicinity of the excavation. Survey utilities and compare actual locations to those locations indicated on the Drawings and the Shop Drawings. Determine any areas of conflict and revise the design and layout of the excavation support system to eliminate these conflicts.

3.02 SLOPING AND BENCHING OF EXCAVATED FACES
A. Where structural excavation support systems are not specifically indicated on the Drawings, sloping and benching systems for exposed faces of excavations may be utilized.

B. Construct sloping and benching systems in accordance with Section 02300.

3.03 TRENCHING SUPPORT SYSTEMS
A. Where structural excavation support systems are not specifically indicated on the Drawings, trench support systems consisting of hydraulic jacks and plates, trench shield systems, and other trench protection systems may be utilized.

3.04 INSPECTION
A. Designer of the shoring system is responsible for confirming proper installation of the shoring system. Shoring system designer, or a representative of the designer, shall make site visits to confirm installation is in accordance with the accepted shoring design.

B. Submit letter of proper installation confirming installation is in accordance with the shoring design.

3.05 REMOVAL
A. Remove excavation support and protection systems when backfill can support the remaining open excavation and bear soil and hydrostatic pressures. Remove support and protection systems in stages to avoid disturbing underlying soils or damaging structures, pavements, facilities, and utilities.

Page 820 of 2338 ends

West Yost – March 2023 02260 - 4 City of Ukiah
592-50-22-14 Excavation Support and Protection Thickening and Dewatering Improvements
B. After removal, promptly fill voids resulting from the extraction of shoring. Repair or replace adjacent work damaged or displaced by excavation support and protection systems removal.

END OF SECTION

Page 821 of 2338 ends

West Yost – March 2023 02300 - 1 City of Ukiah
592-50-22-14 Earthwork Thickening and Dewatering
Improvements
SECTION 02300

EARTHWORK
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Earthwork requirements for sitework, structures, roads and general earthwork, including excavation, fill, backfill, grading, and compaction; import of material; and disposal of surplus and unsuitable materials.

1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section

1. Section 01330 – Submittals

2. Section 02200 – Site Preparation

3. Section 02260 – Excavation Support and Protection

4. Section 02722 – Aggregate Base Course Material

1.03 DEFINITIONS
A. Backfill: Earthwork necessary to add fill between new structures and the excavation up to the sub or finish grade.

B. Borrow Area: Area identified from which to obtain earthwork materials.

C. Cut: Earthwork necessary to remove existing material to lower the existing grade in elevation to sub or finish grade.

D. Embankment: Materials placed to form the subgrade for roadways or site improvements.

E. Excavation: Earthwork necessary to remove existing material for the installation of structures.

F. Fill: Earthwork necessary to add material to bring the existing grade up in elevation to sub or finish grade.

G. Finish Grade: Final surface following placement of surfacing, if any, as indicated.

H. Subgrade: The surface of the earthwork on which pavement, surfacing, base, subbase, or a layer of any other material is placed.

1.04 SUBMITTALS
A. Prepare submittals and submit in accordance with Section 01330.

B. For imported materials, provide certification and source.

C. For excavations 5 feet or deeper: Submit detailed plan of all shoring, bracing, side sloping, or other provisions for worker protection against the hazard of caving ground during excavations in accordance with Section 02260.

1.05 QUALITY ASSURANCE
A. Materials and Compaction Testing.

1. Source testing of materials: Provided and paid for by Owner.

2. Field testing of compaction: Provided and paid for by Owner.

Page 822 of 2338 ends

West Yost – March 2023 02300 - 2 City of Ukiah
592-50-22-14 Earthwork Thickening and Dewatering
Improvements
B. Compaction Testing Standards

1. In-place Density of Compacted Fill Material: Density determined in the field in accordance with ASTM D6938 – Standard Test Methods for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth).

2. Maximum Dry Density of Compacted Material: determined in the laboratory in accordance with Method C of ASTM D1557-12e1 – Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ftlbf/ft3 (2,700 kN-m/m3)), or ASTM D4253 – Standard Test Methods for Maximum Index Density of Soils Using a Vibratory Table and D4254 – Standard Test Methods for Maximum Index Density of Soils and Calculation of Relative Density, for cohesionless, free draining soils.

C. Material Testing Standards:

1. Particle size analysis of soils and aggregates: ASTM D422 (2016 Version) – Standard Test Method for Particle-Size Analysis of Soils.

2. Determination of sand equivalent value: ASTM D2419 – Standard Test Method for Sand Equivalent Value of Soils and Fine Aggregate.

3. Liquid limit, plastic limit, and plasticity index: ASTM D4318 – Standard Test Method for Liquid Limit, Plastic Limit, and Plasticity Index of Soils.

4. The testing for organic matter: ASTM D2974 – Standard Test methods for Moisture, Ash, and Organic Matter of Peat and Other Organic Soils.

D. References in this section to soil classification types and standards shall have the meanings and definitions indicated in ASTM D2487 – Standard Practice for Classification of Soils for Engineering Purposes. Contractor shall be bound by all applicable provisions of ASTM D2487 in the interpretation of soil classifications.

PART 2 - PRODUCTS

2.01 MATERIALS
A. General fill, backfill, and embankment materials:

1. Selected or processed clean earth, rock, or sand, free from grass, roots, brush, other vegetation, corrosive and hazardous materials, manmade objects, and debris.

2. Materials not defined as unsuitable as indicated below, except some materials listed as unsuitable may be used, if indicated on the Drawings or when acceptable to the Engineer, when thoroughly mixed with suitable materials to form a stable composite.

3. Obtain suitable materials from one or more of the following:
a. Onsite excavations and designated borrow areas.
b. Processed on-site materials.
c. Imported from offsite borrow areas and processing plants. d. If imported materials are required by this Section, or to meet the quantity requirements of the Project, provide the imported materials at no additional expense to Owner, unless a unit price item is included for imported materials in the Bidding Schedule.

4. Large rocky material: When embankment material consists of large rocky material, or hard lumps, such as hardpan or cemented gravel which cannot be broken down readily, distribute such material evenly throughout the embankment. Place

Page 823 of 2338 ends

West Yost – March 2023 02300 - 3 City of Ukiah
592-50-22-14 Earthwork Thickening and Dewatering
Improvements
sufficient earth or other fine material around the larger material as it is deposited so as to fill the interstices and produce a dense, compact embankment. Do not place rocks larger than 6 inches in diameter within the upper 2 feet of the embankment subgrade.

5. Further condition fill, backfill, and embedment materials as described below or as indicated on the Drawings.

B. Levee Berm Embankment Material:

1. Lean clay, silty clay, sandy clay or gravely clay soil.

2. Plasticity index of 20 or less.

3. Liquid limit of 40 or less.

4. Complying with the grading shown in the following table:

Sieve Size Percentage Passing
6-inch 100
4-inch 85-100
No. 200 30-100
C. Structure Backfill Material (within 12” of outside face of structure)

1. Granular, low to non-expansive soil.

2. Plasticity index 12 or less.

3. Liquid limit 30 or less.

4. Complying with the grading shown in the following table:

Sieve Size Percentage Passing
6-inch 100
3-inch 95-100
No. 200 15-50
D. Aggregate Base Course Material: In accordance with Section 02722.

E. Crushed Rock:

1. Manufactured, angular, crushed stone with a minimum sand equivalent value of

75. 2. Clean, hard, sound, durable, uniform in quality, and free of soft, friable, thin, elongated or laminated pieces, and disintegrated material.

3. Have 100 percent of its particles with at least one fractured face on a weight basis, when tested for crushed particles per ASTM D5821.

4. Complying with the grading shown in the following table:

Percentage Passing
Sieve Size 1-inch 3/4-inch 1/2-inch
1-1/2-inch 100 - -
1-inch 90-100 100 -
3/4-inch 30-60 90-100 100

Page 824 of 2338 ends

West Yost – March 2023 02300 - 4 City of Ukiah
592-50-22-14 Earthwork Thickening and Dewatering
Improvements
Percentage Passing
Sieve Size 1-inch 3/4-inch 1/2-inch
1/2-inch 0-20 30-60 90-100
3/8-inch - 0-20 20-60
No. 4 0-5 0-5 0-15
No. 8 - 0-5
F. Sand:

1. Clean, coarse, natural sand free from organic material, suitable for the purpose intended.

2. Gradation: 90 percent to 100 percent will pass a No. 4 sieve and not more than 5 percent will pass a No. 200 sieve.

G. Permeable Backfill:

1. Hard, durable, clean sand, gravel or crushed stone, free from Unsuitable Material.

2. Complying with the grading shown in the following table:

Sieve Sizes,
Square Openings
Percent by Weight
Passing Sieve
1-inch 100
3/4-inch 90 – 100
3/8” 40 – 100
No. 4 25 – 40
No. 8 18 – 33
No. 30 5 – 15
No. 50 0 – 7
No. 200 0 – 3

3. Durability index: Not less than 40

4. Sand equivalent: Not less than 75.

H. Impervious Material:

1. Material free of organic materials, rocks, or clods greater than 4 inches in diameter.

2. Gradation: Not less than 50 percent passing the No. 200 sieve.

2.02 UNSUITABLE MATERIALS
A. Unsuitable materials include the materials listed below:

1. Soils which, when classified under ASTM D2487, fall in the classifications of Pt, OH, CH, MH, or OL, or in a classification that contains Pt, OH, CH, MH, or OL in combination with any other letter designation, such as CH/CL.

2. Soils which cannot be compacted sufficiently to achieve the density specified for the intended use, or are unstable or pump regardless of the degree of compaction.

3. Materials that contain hazardous or designated waste materials including petroleum hydrocarbons, pesticides, heavy metals, and any material which may be classified as hazardous or toxic according to applicable regulations.

Page 825 of 2338 ends

West Yost – March 2023 02300 - 5 City of Ukiah
592-50-22-14 Earthwork Thickening and Dewatering
Improvements

4. Soils that contain greater concentrations of chloride or sulfate ions, or have a soil resistivity or pH less than the average values for existing onsite soils.

5. Topsoil, sludge and sludge-entrained soils.

6. Rocks, stones, and boulders larger than allowed for use as fill and backfill materials.

2.03 SOURCE QUALITY CONTROL
A. Materials source testing will be performed by a testing laboratory by the Contractor.

B. Minimum Frequency of sampling:

1. Fill, backfill and embankment material generated from earthwork activities:
a. Two soil samples every [500] cubic yard of material used. b. Two soil samples whenever the character of the soil changes. c. One soil sample when directed by the Engineer.
d. Obtain samples that represent the predominate character of the soil that is encountered.

2. Sampling of Imported Material
a. Obtain representative samples of product from supplier. b. After initial testing demonstrated that the proposed borrow material meets the specified requirements, obtain and test one additional sample for every [500] cubic yard of imported material.

C. Testing:

1. Test all materials used in the Work to confirm they meet the requirements indicated.

2. Prepare moisture-density curves for use in determining the optimum moisture content and in-place density of the compacted backfill.

PART 3 - EXECUTION

3.01 EXCAVATION – GENERAL
A. Excavation includes the removal of all materials of whatever nature encountered, including all obstructions of any nature.

B. Excavation shall conform to the lines and grades indicated on the Drawings.

C. Clear, grub and strip and remove top soil in construction and borrow areas in accordance with Section 02200.

D. Excavation Stability

1. Slope excavated faces or otherwise support in a safe manner in accordance with applicable State safety requirements and the requirements of OSHA Safety and Health Standards for Construction (29CFR1926) and in accordance with Section 02260.

2. Furnish, place, and maintain supports and shoring required to maintain stability of the sides of excavations.

E. Notify Engineer at least 1 working day in advance of completion of any structure excavation to allow inspection of the exposed subgrade before it is covered with backfill or with any construction materials.

Page 826 of 2338 ends

West Yost – March 2023 02300 - 6 City of Ukiah
592-50-22-14 Earthwork Thickening and Dewatering
Improvements
F. Erosion Control:

1. Maintain earthwork surfaces true and smooth and protected from erosion.

2. Construct erosion control measures identified in the Storm Water Pollution Protection Plan prior to any clearing or grading activity.

G. Existing Underground Utilities:

1. Known existing underground utilities are generally shown on the Drawings in their approximate locations based on information of varying accuracy.

2. Exercise care to avoid damage to all existing utilities whether shown or not.

3. Conduct field explorations to locate all underground utilities in the vicinity of the Earthwork activities in accordance with Section 02200.

4. Alert the Engineer of the presence of existing utilities that are not shown on the Drawings or are in locations different than those shown on the Drawings.

H. Existing Overhead Utilities: There may be existing overhead utilities in the vicinity of the Work which may or may not be shown on the Drawings. Identify existing overhead utilities, if any, and use extreme caution when working in the vicinity of overhead utilities.

3.02 EXCAVATION FOR FILLS AND EMBANKMENTS
A. Benching and Keyways:

1. Where fill is to be placed against existing subgrade or existing grade that is sloped, excavate horizontal benches a minimum of 5feet wide and located at vertical intervals of not more than 5 feet to provide for placement and compaction of the new fill on horizontal surfaces.

2. Excavate keyway along the base of the existing slope:
a. Extend the keyway at least 3 feet into competent native soil. b. Width of Keyway: Minimum of 15 feet.
c. Keyway Side Slopes: Inclined at approximately 0.75:1. d. Keyway Subgrade: Scarify the upper 8-inches of the exposed surface, moisture condition and re-compact.

B. Subgrade Preparation:

1. Subgrade Beneath Embankments:
a. Expose competent native soil within the planned new embankment footprint.
b. Scarify the exposed subgrade to a depth of 8 inches, moisture condition as necessary and re-compact.

2. Subgrade Beneath Paved Areas:
a. Excavate to the subgrade soils beneath the bottom of the aggregate base or to the subbase, if such subbase is indicated.
b. Scarify the top 12 inches of subgrade soils, moisture condition as necessary, and re-compact.
c. Finished subgrade shall be even, self-draining, and in conformance with the slope of the finished pavement.

Page 827 of 2338 ends

West Yost – March 2023 02300 - 7 City of Ukiah
592-50-22-14 Earthwork Thickening and Dewatering
Improvements

3. Subgrade Beneath Structures:
a. Excavate to the subgrade soils beneath the bottom of the structure or bottom of crushed rock layer where indicated.
b. Scarify the top 12 inches of subgrade soils, moisture condition as necessary, and re-compact.

3.03 EXCAVATION IN VICINITY OF TREES (NOT USED)

3.04 OVER-EXCAVATION NOT ORDERED OR INDICATED
A. Backfill areas over-excavated with the materials indicated for the backfill above the overexcavation or Aggregate Base.

B. Backfill the over-excavation to restore the required subgrade elevation and compact.

C. Any over-excavation carried below the grade indicated on the Drawings will be at no additional cost to Owner.

3.05 OVER-EXCAVATION WHERE ORDERED BY ENGINEER
A. Where ordered by the Engineer, over-excavate beyond the depth of subgrade indicated to the dimensions ordered.

B. Backfill areas over-excavated with the materials indicated for the backfill above the overexcavation or Aggregate Base.

C. Backfill the over-excavation to restore the required subgrade elevation.

D. Over-excavation less than 6 inches below the limits indicated: At no increase in cost to Owner.

E. Over-excavation greater than 6 inches below the limits indicated: Payment will be made under separate unit price bid items for over-excavation if such bid items have been established. Otherwise, payment will be made in accordance with a negotiated price.

F. Measurement and Payment

1. Measurement of quantities for payment of over-excavation: By calculation by Engineer of the volume of materials removed as over-excavation based on the difference between the excavation dimensions before and after the overexcavation work. No compensation will be made for removal of materials beyond the limits of the additional excavation ordered by Engineer or for materials which may come into the excavation from outside the designated limits. No compensation will be made for removal of materials that are outside of the minimum horizontal dimensions indicated.

2. Payment for over-excavation will be made by the cubic yard. The payment shall include full compensation for furnishing all labor, materials, tools, equipment, and incidentals, and for doing all the work involved in excavating and backfilling the over-excavation completely. Payment shall also include full compensation for the removal and disposal of the excavated materials, import and installation of backfill materials, control of water in the excavation, excavation support, and all costs associated with interruption of construction operations during the review of the foundations, over-excavation, backfill, and all other operations required for, or as a result of, over-excavation.

3.06 DISPOSAL OF UNSUITABLE, EXCESS EXCAVATED AND OTHER MATERIALS A. Dispose unsuitable or excess excavated materials at an appropriate site selected by Contractor unless otherwise indicated.

Page 828 of 2338 ends

West Yost – March 2023 02300 - 8 City of Ukiah
592-50-22-14 Earthwork Thickening and Dewatering
Improvements
B. Obtain required permits, landowner, and agency approvals for disposal of unsuitable and excess excavated materials and pay costs associated with the removal and disposal of the materials.

3.07 FILL AND EMBANKMENT CONSTRUCTION
A. Scarify foundation soils for fills and embankments bring to optimum moisture content, and re-compact with heavy compaction equipment to obtain compaction indicated.

B. Place and compact fill and embankments in horizontal layers so that when compacted layers to not exceed thickness indicated.

C. Provide keyways or benches where an embankment or fill is to be placed against slopes, hillsides, or fill slopes.

D. Slopes: Construct slopes as indicated except construct no permanent fill or embankment slopes with slope inclinations that exceed 2:1 (horizontal:vertical) unless specifically indicated otherwise
E. Over-construct fills and embankments to greater horizontal dimensions than indicated. Cut back slope following placement and compaction to expose well compacted fill.

F. Construct the first 3 feet of embankment or fills over pipelines using placement and compaction equipment that do not damage the pipe. Keep heavy construction equipment a minimum distance of the edge of the trench equal to the depth of the trench until at least 3 feet of fill over the pipe has been completed.

3.08 STRUCTURE BACKFILL
A. Provide Structure Backfill material within 12-inches of all structures to be backfilled unless otherwise indicated.

B. Place a 6-inch layer of 3/4-inch or 1-inch Crushed Rock below all structures, unless otherwise indicated.

C. Do not drop backfill upon any structure or pipe.

D. Confirm concrete structures have attained sufficient strength to withstand the backfill loads imposed.

E. Do not place backfill around water retaining structures until structures have been tested and approved for backfill. Fill structures with water during backfill operations.

F. Place backfill after all water has been removed from the excavation and the excavation sidewalls and subgrade soils have dried to a moisture content suitable for compaction.

G. Remove all loose, sloughing, or caving soils and rock materials prior to placement of backfill.

H. Place geotextile fabric as indicated.

I. Promptly after removal, fill voids created by the extraction of sheetpile or shoring indicated in Section 02260.

J. Place backfill and spread evenly in layers so that when compacted layers do not exceed thickness indicated.

K. Thoroughly mix layers as necessary to promote uniformity of material in each layer.

L. Add water to backfill material where moisture content is below the optimum moisture content and mix with the soil until the proper moisture content is achieved throughout the soil layer.

M. Where backfill material moisture content is too high to permit the specified degree of compaction, dry backfill material until moisture content is satisfactory.

Page 829 of 2338 ends

West Yost – March 2023 02300 - 9 City of Ukiah
592-50-22-14 Earthwork Thickening and Dewatering
Improvements

3.09 COMPACTION OF FILL, BACKFILL, AND EMBANKMENT MATERIALS A. Adjust moisture condition of soils to achieve a water content of 3 percent, plus or minus

0.5 percent, above the optimum moisture content as determined through laboratory testing of the soil.

B. Compact each layer in a uniform and systematic manner.

C. For materials with less than 10 percent passing the No. 4 sieve, compact by means of at least 2 passes from a flat plate vibratory compactor.

D. For materials with 10 percent or more passing the No. 4 sieve, mechanically compact to the indicated percentage of density each layer of backfill materials.

1. Use equipment that is consistently capable of achieving the required degree of compaction.

2. Compact each layer over its entire area while the material is at the required moisture content.

E. Do not use flooding, ponding, or jetting as a method of compaction.

F. Do not use equipment weighing more than 10,000 lbs closer to structure walls than a horizontal distance equal to the depth of the fill at the time. Use hand operated power compaction equipment where use of heavier equipment is impractical or restricted due to weight limitations.

G. Compaction Requirements:

1. Where agency or utility company requirements govern, the highest compaction standards shall apply.

2. Compact finish and subgrades in compliance with the following table:

Location or Use of Fill
Limit/Layer
Thickness
Percentage of
Maximum Dry Density of
Compacted Material per
ASTM D1557
Backfill around structures 8 in. Layers 90
Embankment Fill 12 in. Layers 90
Subgrade beneath embankments or fill areas
(upper 8 inches)
Upper 12 in. 95
Subgrade beneath paved areas (upper 12 inches) Upper 12 in. 95 Subgrade beneath structures (upper 12 inches) Upper 12 in. 95 Subgrade beneath keyway (upper 8 inches) Upper 8 in. 95 Finish grade in unimproved or landscape areas Upper 12 in. 85

3.10 FIELD QUALITY CONTROL AND TESTING
A. Field quality control testing for compaction confirmation will be done by a testing laboratory of the Owner’s choice at the Owner’s expense except as indicated below.

B. If requested by the Owner, remove soil above the level at which the Owner wishes to test.

Backfill and re-compact material after testing is completed.

C. If compaction fails to meet specified requirements, perform remedial work by one of the following methods:

1. Remove and replace backfill at proper density.

2. Bring density up to specified level by other means acceptable to Owner.

Page 830 of 2338 ends

West Yost – March 2023 02300 - 10 City of Ukiah
592-50-22-14 Earthwork Thickening and Dewatering
Improvements

3. Retesting:
a. Costs for conducting additional tests to confirm and verify that remedial work has brought compaction within specified requirements shall be borne by the Contractor.
b. Conduct compaction tests at twice as frequently specified for the initial confirmation tests.

D. Where soil compaction is specified as a percentage of maximum dry density, determine the maximum dry density at optimum moisture content by laboratory testing in accordance with Method C of ASTM D1557.

E. Where compaction of cohesionless, free draining soil is specified as a percentage of relative density, determine relative density by laboratory testing in accordance with ASTM D4253 and D4254.

F. Determine In-Place Density of Compacted Fill Material by performing field tests of soil density in accordance with ASTM D6938.

G. Frequency of Compaction Confirmation Testing at intervals not less than as follows:

1. Embankments and Fills: 2 tests every 500 cubic yards.

2. Structure Backfill: 1 test every 5 feet in elevation per 100 horizontal feet of backfill.

3.11 FINISH GRADES
A. Surface: Reasonably smooth and free of grade breaks, irregular surface changes, protrusions and other defects.

B. Restore un-improved areas back to pre-construction grades.

C. Backfill topsoil in all areas where the topsoil was removed as part of the site preparation.

D. Restore drainage swales and water courses to their pre-construction alignments and grades unless otherwise modified by the Work. Grade surface to drain away from structures. Direct drainage to collection points.

E. Provide smooth transitions to existing grades.

F. Repair and reestablish grades to required elevations and slopes due to any settlement or erosion that may occur prior to final acceptance.

G. Vertical Tolerance:

1. Subgrade under paved areas: 0.0 feet above and 0.08 feet below.

2. Subgrade under structures: 0.0 feet above and 0.08 feet below.

3. Landscaped areas: 0.1 feet above and 0.1 feet below.

4. Unimproved areas: 0.1 feet above and 0.1 feet below.

END OF SECTION

Page 831 of 2338 ends

West Yost – March 2023 02722 - 1 City of Ukiah
592-50-22-14 Aggregate Base Course Material Thickening and Dewatering Improvements
SECTION 02722

AGGREGATE BASE COURSE MATERIAL
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Aggregate base course material and placement.

1.02 DEFINITIONS
A. Completed Course: Compacted, unyielding, free from irregularities, with smooth, tight, even surface, true to grade, line, and cross-section.

B. Completed Lift: Compacted with uniform surface reasonably true to cross-section.

1.03 STANDARD SPECIFICATION
A. State of California Department of Transportation Standard Specifications (Caltrans).

1.04 SUBMITTALS
A. Product Data: Source, gradation, and testing data records for aggregate base course material previously produced by the supplier, which demonstrates compliance with the specified gradation and physical requirements.

1.05 DELIVERY, STORAGE AND HANDLING
A. Storage and Protection: Protect from segregation and excessive moisture during delivery, storage, and handling.

1.06 QUALITY ASSURANCE
A. Material and Compaction Testing

1. Source Testing of Materials: Provided and paid for by the Contractor

2. Field Testing for Compaction: Provided and paid for by the Owner B. Compaction Testing

1. In-place Density: Density of aggregate base course material that has been placed and compacted in the field, then tested in conformance with ASTM D6938 to determine density relative to the maximum density.

2. Maximum Density: Density obtained in the laboratory when tested in accordance with ASTM D1557.

PART 2 - PRODUCTS

2.01 MATERIALS
A. Aggregate: Clean, hard, durable particles consisting of the any combination of the following:

1. Broken stone

2. Crushed gravel

3. Natural rough surfaced gravel

4. Sand

Page 832 of 2338 ends

West Yost – March 2023 02722 - 2 City of Ukiah
592-50-22-14 Aggregate Base Course Material Thickening and Dewatering Improvements

5. Processed reclaimed asphalt concrete, portland cement concrete (PCC), lean concrete base (LCB), or cement treated base (CTB).

B. Use either 1-1/2-inch or 3/4-inch aggregate grading unless otherwise indicated. Do not change grading without authorization from the Engineer.

C. Conform to the following gradation when tested in accordance with ASTM C136:

Sieve Sizes
(Square Openings)
Percent by Weight
Passing Sieve
3/4” Maximum
Percent by Weight
Passing Sieve
1-1/2” Maximum
2” - 100
1-1/2” - 90-100
1-inch 100 -
3/4-inch 90-100 50-85
No. 4 35-60 25-45
No. 30 10—30 10-25
No. 200 2-9 2-9
A. Durability Index (ASTM D3744): 35 minimum.

B. Sand Equivalent (ASTM D2419): 25 minimum.

C. R-Value (ASTM D2844): 78 minimum.

PART 3 - EXECUTION

3.01 PLACEMENT
A. Obtain Engineer's acceptance of subgrade before placement of base course.

B. Do not place aggregate base material on soft, muddy or frozen subgrade.

C. Moisture condition, spread and compact aggregate base course material to the lines, grades and dimensions indicated on the Drawings and in accordance with applicable sections of Caltrans Section 26.

1. Do not haul material over surfacing in process of construction.

2. Spread and distribute material to provide the required density, depth, grade and dimensions with allowance for subsequent lifts.

3. Produce an even distribution of material without segregation. Should segregation occur, modify or change the spreading procedure to correct segregation problems and to result in uniformity in grading.

3.02 COMPACTION REQUIREMENTS
A. Compact aggregate base course material to obtain an In-Place Density of 95 percent of maximum density unless otherwise indicated.

B. Commence compaction effort by starting at the outer edges of the layer and continue toward the center.

C. Apply water as needed to obtain required In-Place Density.

D. Place and compact each lift to required density before succeeding lift is placed.

E. Blade or otherwise work surfacing as necessary to maintain grade and cross-section at all times, and to keep surface smooth and thoroughly compacted.

Page 833 of 2338 ends

West Yost – March 2023 02722 - 3 City of Ukiah
592-50-22-14 Aggregate Base Course Material Thickening and Dewatering Improvements

3.03 TOLERANCES
A. Structure subgrade: Plus or minus 0.05-foot of the design elevation.

B. Pavement subgrade: Plus or minus 0.05-foot of the design elevation.

C. Aggregate Base surface grade: Plus or minus 0.05-foot of the design elevation.

3.04 FIELD QUALITY CONTROL
A. Contractor’s compaction testing responsibilities:

1. Accomplish specified degree of compaction.

2. Undertake and control compaction effort by confirmation tests to verify that the compaction work complies with the specified degree of compaction.

3. Pay for compaction testing services and submit compaction test reports to the Engineer.

B. Frequency of Compaction Testing

1. Structures: Make one compaction test for each 50 cubic yards of aggregate base course material placed, with a minimum of one compaction test per structure.

2. Roadway and Paved Areas: Make one test every 1000 square feet of pavement.

C. Owner’s Compaction Compliance Testing

1. Owner may periodically make compliance tests to independently verify that compaction is meeting the specified requirements.

2. If necessary, remove overburden above the test location and backfill and recompact as necessary after the testing has been completed.

END OF SECTION

Page 834 of 2338 ends

West Yost – March 2023 02722 - 4 City of Ukiah
592-50-22-14 Aggregate Base Course Material Thickening and Dewatering Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 835 of 2338 ends

West Yost – March 2023 02740 - 1 City of Ukiah
592-50-22-14 Asphalt Paving Thickening and Dewatering
Improvements
SECTION 02740

ASPHALT PAVING
PART 1 - GENERAL

1.01 SECTION INCLUDES
A. Requirements for constructing asphalt paving shown.

B. Work includes, but is not necessarily limited to, earthwork, scarifying and preparing the subgrade, placing and compacting aggregate base, applying prime coat and tack coat, placing and compacting asphalt concrete, and all related work.

1.02 REFERENCED SECTIONS
A. The following Sections are referenced in this Section

1. Section 01330 – Submittals

2. Section 02300 – Earthwork

3. Section 02722 – Aggregate Base Course material

1.03 REFERENCED STANDARDS
A. State of California Department of Transportation Standard Specifications (Caltrans) 2018.

B. City of Ukiah

1.04 SUBMITTALS
A. Comply with Section 01330.

B. Manufacturer’s Data or Certificate of Compliance

1. Aggregate base

2. Tack coat

3. Asphalt design mix

4. Independent test laboratory name
C. Furnish a certificate of compliance signed by the manufacturer prior to the use of any asphalt materials.

1. The certificate shall state that the material complies with the requirements of these Specifications.

2. Furnish a certificate with each lot of material delivered to the site with the lot certified clearly identified in the certificate.

3. Provide certificates of compliance for each type of asphalt product used.

PART 2 - PRODUCTS

2.01 GENERAL
A. Provide materials in accordance with:

1. Caltrans Specifications, as modified by this Section.

2. City of Ukiah, as modified by this Section.

Page 836 of 2338 ends

West Yost – March 2023 02740 - 2 City of Ukiah
592-50-22-14 Asphalt Paving Thickening and Dewatering
Improvements

2.02 CLASS 2 AGGREGATE BASE
A. Class 2 aggregate base: As specified in Section 02722.

2.03 TACK COAT
A. Caltrans Specification, Section 39 and 94
B. Grade SS-1h asphalt emulsion.

2.04 ASPHALT CONCRETE
A. Hot Mixed Asphalt Concrete Job Mix Formula: Caltrans Specifications, Section 39 for Type A, Asphalt Concrete (1/2-inch maximum aggregate, medium grading).

B. Asphalt Binder: Caltrans paving asphalt, Caltrans Specifications, Section 92

1. PG 64-16 for North Coast and Low Mountain South Mountain

2.05 SEAL COAT
A. Caltrans Specification, Section 37 and 94
B. Grade SS-1, SS-1h or CSS-1h asphalt emulsion.

2.06 HEADER BOARD
A. 100% post-consumer recycled HDPE plastic.

1. UV stabilized formula resistant to fading from sunlight.

2. Size as shown on Drawings

3. Color: Brown

4. Textured, wood-grained surface

5. Furnish with minimum 1 (one) stake every three feet.

B. Redwood

1. Construction grade redwood conforming to the requirements of Caltrans Specification, Section 57.

2. Size as shown on Drawings

3. Furnish with minimum 1 (one) redwood stake every four feet.

PART 3 - EXECUTION

3.01 PAVEMENT
A. Construct to the line, grade, and section indicated and in accordance with referenced State Specifications.

B. Sawcut existing asphalt paving that is adjacent to new pavement.

C. Prepare subgrade material per Section 02300.

D. Prepare aggregate base course in accordance with Section 02722.

E. Apply tack coat at a minimum residual rate specified for the underlying surface condition as shown in Caltrans Specifications, Section 39-2. Apply tack coat to all adjoin vertical surfaces no more than 8 hours prior to paving.

Page 837 of 2338 ends

West Yost – March 2023 02740 - 3 City of Ukiah
592-50-22-14 Asphalt Paving Thickening and Dewatering
Improvements
F. Place asphalt concrete to the requirements of Caltrans Specifications, Section 39, and Section 22.

1. Install in lifts a minimum of 2-inches thick unless otherwise indicated.

2. Install final lift at a maximum thickness of 2 inches.

G. Density of finished paving: not less than 91% nor greater than 97% of maximum theoretical density as determined by California Test 309 (CTM 309)
H. Tolerance of final grade

1. Not more than 0.05 foot from the elevations indicated on the drawings

2. All areas graded to drain

3.02 FOG SEAL
A. Apply asphaltic emulsion for fog seal coat to the requirements of Caltrans Specifications, Section 37 and Section 22.

3.03 HEADER BOARD
A. Place at all limits of paving not abutting a concrete structure.

B. Attached to 12- inch plastic stakes, at three feet on center, with metal screws.

3.04 TRAFFIC STRIPES AND PAVEMENT MARKINGS
A. Apply thermoplastic traffic stripes and pavement markings to the requirements of Caltrans Specifications, Section 84-2.

3.05 TESTING
A. Contractor to provide the following Quality Control Testing

1. Aggregate Gradation
a. Test Method: California Test 202
b. Minimum sampling and testing frequency: 1 per 500 tons but no less than per day.
c. Point of Sampling: California Test 125

2. Asphalt binder content %
a. Test Method: California Test 379 or 382
b. Minimum sampling and testing frequency: 1 per 1000 tons but no less than per day.
c. Point of Sampling: Loose mix behind paver, see California Test 125.

B. Smoothness

1. Contractor to test in conformance to the requirements of Caltrans Specifications, Section 39-2.01.

2. Owner may conduct parallel smoothness testing.

3. If the top layer of pavement does not comply with the smoothness specifications, Contractor to correct in conformance with Caltrans Specifications, Section 39-2.01.

No compensation will be made for smoothness correction.

C. Pavement Density Nuclear gage method

1. Contractor to provide quality control testing at locations based on a random sampling plan with not less than one test per five hundred (500) tons.

Page 838 of 2338 ends

West Yost – March 2023 02740 - 4 City of Ukiah
592-50-22-14 Asphalt Paving Thickening and Dewatering
Improvements

2. If the density does not fall within the density range, the Contractor may test at two additional locations within the same 500 tons and average the results of the three tests. This averaged result shall fall within the above-specified range.

3. Contractor shall notify the Owner prior to paving and provide contact information for Contractor’s testing personnel.

4. Owner may conduct parallel quality assurance testing at its discretion in accordance with Caltrans test methods, 308, 309, and 375.

END OF SECTION

Page 839 of 2338 ends

TJCAA – March 2023 03100 - 1 City of Ukiah
592-50-22-14 Concrete Formwork Thickening and Dewatering Improvements
SECTION 03100

CONCRETE FORMWORK
PART 1 - GENERAL

1.01 WORK INCLUDED
A. Furnish all labor, materials, equipment, and incidentals required, and design, install, and remove formwork for cast-in-place concrete as shown on the Drawings and as specified herein.

B. Secure to forms as required or set for embedment as required, all miscellaneous metal items, sleeves, reglets, anchor bolts, inserts, and other items furnished under other Sections and required to be cast into concrete.

1.02 RELATED WORK
A. Related Work Specified Elsewhere

1. Section 03150 - Concrete Joints and Joint Accessories

2. Section 03200 - Concrete Reinforcement

3. Section 03300 - Cast-in-Place Concrete

4. Section 03600 - Grout

5. Section 03740 - Modifications and Repair to Concrete

1.03 REFERENCE SPECIFICATIONS, CODES, AND STANDARDS
A. American Concrete Institute (ACI)

1. ACI 117 - Standard Specifications for Tolerances for Concrete Construction and Materials

2. ACI 301 - Specifications for Structural Concrete

3. ACI 318 - Building Code Requirements for Structural Concrete

4. ACI 347 - Guide to Formwork for Concrete
B. American Plywood Association (APA)

1. APA - Material Grades and Designations as Specified
C. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.

1.04 SUBMITTALS
A. Submit to the ENGINEER, in accordance with Division 1, shop drawings and product data showing materials of construction and details of installation for the following:

1. Form release agent

2. Form ties

3. Void forms
B. Falsework and Drawings - The CONTRACTOR will adhere to the provisions of Section 1717 of the Division of Industrial Safety, Construction Safety Orders, which require that all falsework or vertical shoring installations where the height of the falsework or vertical shoring, as measured from the top of the sills to the soffit of the superstructure, exceeds

Page 840 of 2338 ends

TJCAA – March 2023 03100 - 2 City of Ukiah
592-50-22-14 Concrete Formwork Thickening and Dewatering Improvements
14 feet, or where individual horizontal span lengths exceed 16 feet, or provision for vehicular or railroad traffic through falsework or vertical shoring is made, shall be approved and signed by a Professional Civil Engineer, registered in the State of California. A copy of the falsework plan or shoring layout shall be available on the job site at all times.

C. The CONTRACTOR shall, in accordance with the requirements in Division 1, submit detailed plans of falsework proposed to be used. Such plans shall be in sufficient detail to indicate the general layout, sizes of members, anticipated stresses, grade of materials to be used in the falsework, and typical soil conditions.

D. Location and sequence of the concrete placement - Indicate locations of form joints, formtie layout, panel sizes, and patterns. Show location of form ties on architectural surfaces.

E. Review of pour sequence, form system, and panel layout shall be for appearance and conformance to design concept only. ENGINEER’s review of the forming plans or procedures shall not relieve the CONTRACTOR of responsibility for the strength, safety, or correctness of methods used, the adequacy of equipment, or from carrying out the work in full compliance with the requirements of the Drawings and as specified herein.

1.05 QUALITY ASSURANCE
A. The form liner manufacturer's representative shall be on-site during initial installation of the form liner to instruct the CONTRACTOR on the proper methods of application and use of the liner. S/He shall be available to answer any questions on the liner that the ENGINEER may have.

1.06 SYSTEM DESCRIPTION
A. General - Architectural Concrete is wall, slab, beam, or column concrete that will have surfaces exposed to view in the finished work.

B. Structural Design Responsibility - All forms and shoring shall be designed at the CONTRACTOR's expense by a Professional Civil Engineer, registered in the State of California. Formwork shall be designed and erected in accordance with the requirements of ACI 301 and ACI 318 and as recommended in ACI 347 and shall comply with all applicable regulations and codes. The design shall consider any special requirements due to the use of plasticized and/or retarded set concrete.

PART 2 - PRODUCTS

2.01 GENERAL REQUIREMENTS
A. The use of a manufacturer's name and model or catalog number is for the purpose of establishing the standard of quality and general configurations desired.

2.02 MATERIALS
A. Forms for cast-in-place concrete shall be made of wood, metal, or other approved material.

Wood forms for the project shall be new and unused. Construct wood forms of sound lumber or plywood of suitable dimensions and free from knotholes and loose knots. Where used for exposed surfaces, dress and match boards. Sand plywood smooth and fit adjacent panels with tight joints. Metal forms may be used when approved by the ENGINEER and shall be of an appropriate type for the class of work involved. All forms shall be designed and constructed to provide a flat, uniform concrete surface requiring minimal finishing or repairs.

B. Wall Forms:

1. Forms for all exposed exterior and interior concrete walls shall be new and unused "Plyform" exterior grade plywood panels manufactured in compliance with APA

Page 841 of 2338 ends

TJCAA – March 2023 03100 - 3 City of Ukiah
592-50-22-14 Concrete Formwork Thickening and Dewatering Improvements
and bearing the trademark of that group, or equal acceptable to the ENGINEER.

Provide B grade or better veneer on all faces to be placed against concrete during forming. The class of material and grades of interior plies shall be of sufficient strength and stiffness to provide a flat, uniform concrete surface requiring minimal finishing and grinding.

2. All joints or gaps in forms shall be taped, gasketed, plugged, and/or caulked with an approved material so that the joint will remain watertight and will withstand placing pressures without bulging outward or creating surface patterns.

C. Form Release Agent - Coat all forming surfaces in contact with concrete using an effective, nonstaining, non-residual, water-based, bond-breaking form coating, unless otherwise noted. [Form release agents used in potable water containment structures shall be suitable for use in contact with potable water and shall be nontoxic and free of taste or odor.] D. Form Ties:

1. Form ties encased in concrete other than those specified in the following paragraphs shall be designed so that, after removal of the projecting part, no metal shall remain within 1 1/2 inches of the face of the concrete. The part of the tie to be removed shall be at least 1/2 inch in diameter or be provided with a wood or metal cone at least 1/2 inch in diameter and 1 1/2 inches long. Form ties in concrete exposed to view shall be the cone-washer type.

2. Form ties for exposed exterior and interior walls shall be as specified in the preceding paragraph except that the cones shall be approved wood or plastic.

3. Flat bar ties for panel forms shall have plastic or rubber inserts having a minimum depth of 1 1/2 inches and sufficient dimensions to permit proper patching of the tie-hole.

4. Common wire shall not be used for form ties.

5. Alternate form ties, consisting of tapered through-bolts at least 1 inch in diameter at the smallest end or through-bolts that utilize a removable tapered sleeve of the same minimum size, may be used at the CONTRACTOR's option. Obtain ENGINEER's acceptance of system and spacing of ties before ordering or purchasing of forming. Clean, fill, and seal form tie hole with nonshrink cement grout. The CONTRACTOR shall be responsible for watertightness of the form ties and any repairs needed.

PART 3 - EXECUTION

3.01 GENERAL
A. Forms shall be used for all cast-in-place concrete including sides of footings. Forms shall be constructed and placed so that the resulting concrete will be of the shape, lines, dimensions, and appearance indicated on the Drawings.

B. Forms for walls shall have removable panels at the bottom for cleaning, inspection, and joint surface preparation. Forms for wall heights in excess of 16 feet shall have closable intermediate inspection ports. Tremies and hoppers for placing concrete shall be used to allow concrete inspection, prevent segregation, and prevent the accumulation of hardened concrete on the forms above the fresh concrete.

C. Molding, bevels, or other types of chamfer strips shall be placed to produce blockouts or chamfers as shown on the Drawings or as specified herein. Chamfer strips shall be provided at horizontal and vertical projecting corners to produce a 3/4-inch chamfer.

Rectangular or trapezoidal moldings shall be placed in locations requiring sealants where specified or shown on the drawings. Size of moldings shall conform to the sealant manufacturer's recommendations.

Page 842 of 2338 ends

TJCAA – March 2023 03100 - 4 City of Ukiah
592-50-22-14 Concrete Formwork Thickening and Dewatering Improvements
D. Forms shall be sufficiently rigid to withstand construction loads and vibration and to prevent displacement or sagging between supports. Construct forms such that the concrete and/or exposed rebar (dowels) will not be damaged by their removal. The CONTRACTOR shall be entirely responsible for the adequacy of the forming system.

E. Before form material is reused, all surfaces to be in contact with concrete shall be thoroughly cleaned, all damaged places repaired, all projecting nails withdrawn, and all protrusions smoothed. Reuse of wooden forms for other than rough finish will be permitted only if a "like-new" condition of the form is maintained.

F. Metal items, such as rebar, wire, or plates used to support pipe penetrations and pipe embedment shall have a minimum clearance of 2 inches from reinforcing bars.

G. Tolerances in concrete construction shall be in accordance with ACI 117, unless otherwise noted.

3.02 FORM TOLERANCE
A. Forms shall be surfaced, designed, and constructed in accordance with the recommendations of ACI 347 and shall meet the following additional requirements for specified finishes.

B. Formed Surfaces Exposed to View - Edges of all form panels in contact with concrete shall be flush within 1/32 inch and forms for plane surfaces shall be such that the concrete will be plane within 1/16 inch in 4 feet. Forms shall be tight to prevent the passage of mortar, water, and grout. The maximum deviation of the finish wall surface at any point shall not exceed 1/4 inch from the intended surface as shown on the Drawings. Form panels shall be arranged symmetrically and in an orderly manner to minimize the number of seams.

C. Formed surfaces not exposed to view or buried shall meet the requirements of Class "C" Surface in ACI 347.

D. Formed rough surfaces including mass concrete, pipe encasement, electrical duct encasement, and other similar installations shall have no minimum requirements for surface smoothness and surface deflections. The overall dimensions of the concrete shall be plus or minus 1 inch.

3.03 FORM PREPARATION
A. Wood forms in contact with concrete shall be coated with an effective release agent before form installation.

B. Steel forms shall be thoroughly cleaned and mill scale and other ferrous deposits shall be sandblasted or otherwise removed from the contact surface for all forms except those utilized for surfaces receiving a rough finish. All forms shall have the contact surfaces coated with a release agent.

3.04 REMOVAL OF FORMS
A. The CONTRACTOR shall be responsible for all damage resulting from removal of forms.

Form removal shall conform to the requirements specified in Section 03300.

3.05 INSPECTION
A. The ENGINEER shall be notified when the forms are complete and ready for inspection at least 24 hours before the proposed concrete placement.

B. Failure of the forms to comply with the requirements specified herein, or to produce concrete complying with the requirements of this Section, shall be grounds for rejection of that portion of the form/concrete work. Rejected work shall be repaired or replaced as directed by the ENGINEER at no additional cost to the OWNER. Such repair or

Page 843 of 2338 ends

TJCAA – March 2023 03100 - 5 City of Ukiah
592-50-22-14 Concrete Formwork Thickening and Dewatering Improvements
replacement shall be subject to the requirements of this Section and approval of the ENGINEER.

3.06 FALSEWORK
A. The CONTRACTOR shall be responsible for the design, engineering, construction, maintenance, and safety of all falsework, including staging, walkways, forms, ladders, and similar appurtenances, which shall equal or exceed the applicable requirements of the provisions of the OSHA Safety and Health Standards for Construction, the requirements of the Construction Safety Orders of the California Division of Industrial Safety, and the requirements specified herein.

B. All falsework shall be designed and constructed to provide the necessary rigidity and to support the loads. Falsework for the support of a superstructure shall be designed to support the loads that would be imposed if the entire superstructure were placed at one time.

C. Falsework shall be placed upon a solid footing, safe against undermining, and protected from softening. When the falsework is supported on timber piles, the maximum calculated pile loading shall not exceed 20 tons. When falsework is supported on any portion of the structure that is already constructed, the loading imposed by the falsework shall be spread, distributed, and braced in such a way as to avoid any possibility of damage to the structure.

END OF SECTION

Page 844 of 2338 ends

TJCAA – March 2023 03100 - 6 City of Ukiah
592-50-22-14 Concrete Formwork Thickening and Dewatering Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 845 of 2338 ends

TJCAA – March 2023 03150 - 1 City of Ukiah
592-50-22-14 Concrete Joints and Joint Accessories Thickening and Dewatering Improvements
SECTION 03150

CONCRETE JOINTS AND JOINT ACCESSORIES
PART 1 - GENERAL

1.01 WORK INCLUDED
A. Furnish all labor, materials, equipment, and incidentals required and install accessories for concrete joints as shown on the Drawings and as specified herein.

1.02 RELATED WORK
A. Related Work Specified Elsewhere

1. Section 03100 - Concrete Formwork

2. Section 03200 - Concrete Reinforcement

3. Section 03300 - Cast-in-Place Concrete

4. Section 03366 - Tooled Concrete Finishes.

5. Section 03600 - Grout

6. Section 03740 - Modifications and Repair to Concrete.

7. Section 05500 - Miscellaneous Metals

1.03 REFERENCE SPECIFICATIONS, CODES, AND STANDARDS
A. Federal Specifications

1. SS-S-210A - Sealing Compound, Preformed Plastic, for Expansion Joints and Pipe Joints
B. American Society for Testing and Materials (ASTM)

1. ASTM A675 - Standard Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality, Mechanical Properties

2. ASTM C881 - Standard Specification for Epoxy-Resin-Base Bonding Systems for Concrete

3. ASTM C1059 - Standard Specification for Latex Agents for Bonding Fresh to Hardened Concrete

4. ASTM D1751 - Standard Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural Construction (Non-extruding and Resilient Bituminous Types)

5. ASTM D1752 - Standard Specification for Preformed Sponge Rubber and Cork and Recycled PVC Expansion Joint Fillers for Concrete Paving and Structural Construction
C. US Army Corps of Engineers (CRD)

1. CRD-C 94 Specification for Surface Retarders
D. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.

Page 846 of 2338 ends

TJCAA – March 2023 03150 - 2 City of Ukiah
592-50-22-14 Concrete Joints and Joint Accessories Thickening and Dewatering Improvements

1.04 SUBMITTALS
A. Submit to the ENGINEER, in accordance with Division 1, submittals including the following:

1. Premolded Joint Fillers - Product data including catalogue cut, technical data, storage requirements, installation requirements, location of use, and conformity to ASTM standards.

2. Bond Breaker - Product data including catalogue cut, technical data, storage requirements, installation requirements, location of use, and conformity to ASTM standards.

3. Expansion Joint Dowels - Product data on the complete assembly including dowels, coatings, lubricants, spacers, sleeves, expansion caps, installation requirements, and conformity to ASTM standards.

4. Compressible Joint Filler - Product data including catalogue cut, technical data, storage requirements, installation requirements, location of use, and conformity to ASTM standards.

5. Bonding Agents - Product data including catalogue cut, technical data, storage requirements, product life, application requirements, and conformity to ASTM standards.

6. In-Form Surface Retarders – Product data, including catalogue cut, technical data, storage requirements, product life, application requirements, and conformity to governing standards.

7. Samples - Two samples of each type of waterstop fitting(s).

B. Certifications:

1. Certify that all materials used within the joint system are compatible with each other.

2. [Certify that materials used in the construction of joints are suitable for use in contact with potable water 30 days after installation.] PART 2 - PRODUCTS

2.01 GENERAL REQUIREMENTS
A. The use of a manufacturer's name and model or catalog number is for the purpose of establishing the standard of quality and general configuration desired.

B. All materials used together in a given joint (bond breakers, backer rods, joint fillers, sealants, etc.) shall be compatible with one another. Coordinate selection of suppliers and products to ensure compatibility. Under no circumstances shall asphaltic bond breakers or joint fillers be used in joints receiving sealant.

C. All chemical sealant type waterstops shall be products specifically manufactured for the purpose for which they will be used and the products shall have been successfully used on similar structures for more than five years.

2.02 MATERIALS
A. Premolded Joint Filler:

1. Premolded joint filler for structures shall be self-expanding, cork, premolded joint filler conforming to ASTM D1752, Type III. The thickness shall be 3/4 inch unless shown otherwise on the Drawings.

2. Premolded joint filler for sidewalk and roadway concrete pavements, or where fiber joint filler is specifically noted on the Drawings, shall be asphalt-impregnated

Page 847 of 2338 ends

TJCAA – March 2023 03150 - 3 City of Ukiah
592-50-22-14 Concrete Joints and Joint Accessories Thickening and Dewatering Improvements
fiberboard conforming to ASTM D1751. The thickness shall be 3/4 inch unless otherwise shown on the Drawings.

B. Bond Breaker:

1. Bond breaker tape shall be an adhesive-backed, glazed butyl or polyethylene tape that will satisfactorily adhere to the premolded joint filler or concrete surface as required. The tape shall be the same width as the joint.

2. Except where tape is specifically called for on the Drawings, bond breaker for concrete shall be either bond breaker tape or a nonstaining type bond prevention coating such as Silcoseal Select, by Nox-Crete, Omaha, Nebraska; or equal.

C. Expansion Joint Dowels:

1. Dowels shall be smooth steel conforming to ASTM A675, Grade 70. Dowels must be straight and clean, free of loose, flaky rust and loose scale. Dowels may be sheared to length provided deformation from true shape caused by shearing does not exceed 0.04 inch on the diameter of the dowel and extends no more than 0.04 inch from the end. Bars shall be coated with a bond breaker on the expansion end of the dowel. Expansion caps shall be provided on the expansion end.

2. Expansion dowel caps shall be K-11 plastic dowel caps as manufactured by the Dayton Superior; or equal.

D. Bonding Agent:

1. Epoxy bonding agent shall be two-component, solvent-free, moisture insensitive, epoxy resin material conforming to ASTM C881, Type V. The bonding agent shall be Sikadur 32 Hi-Mod by Sika Corporation; Concresive Liquid LPL by BASF Building Systems; or equal.

2. Latex bonding agent shall be non-reemulsifiable acrylic-polymer latex conforming to ASTM C1059, Type II.

E. Compressible Joint Filler:

1. The joint filler shall be a non-extruded, watertight strip material used to fill expansion joints between structures. The material shall be capable of being compressed at least 40 percent for 70 hours at 68 degrees Fahrenheit and subsequently recovering at least 20 percent of its original thickness in the first 1/2 hour after unloading. Compressible joint filler shall be Phyzite/Evazote 380 as manufactured by Chase Construction Products; Wabo Evazote UV as manufactured by BASF Chemical Company; or equal.]
PART 3 - EXECUTION

3.01 INSTALLATION
A. Construction Joints:

1. Make construction joints only at locations shown on the Drawings or as approved by the ENGINEER. Any additional or relocation of construction joints proposed by the CONTRACTOR must be submitted to the ENGINEER for written approval.

2. All joints shall be perpendicular to main reinforcement. Continue reinforcing steel through the joint as indicated on the Drawings.

3. Provide sealant grooves for joint sealant where indicated on the Drawings.

4. At all construction joints, and at concrete joints designated on the Drawings to be "roughened," uniformly roughen the surface of the concrete to a full amplitude (distance between high and low points or side to side) of not less than 1/4 inch to

Page 848 of 2338 ends

TJCAA – March 2023 03150 - 4 City of Ukiah
592-50-22-14 Concrete Joints and Joint Accessories Thickening and Dewatering Improvements
expose a fresh face. Thoroughly clean joint surfaces of loose or weakened materials by water blasting or sandblasting and prepare for bonding. At least 2 hours before, and again shortly before the new concrete is deposited, saturate the joints and adjacent concrete surfaces to at least 12 inches past the joint with water.

5. In-Form Surface Retarders:
a. In lieu of manually roughening the concrete surface, roughened surface may be achieved by means of an in-form surface retarder. b. Product catalogue cut-sheet shall clearly indicate the product’s suitability for use in horizontal and/or vertical construction joints. Use of product(s) whose cut-sheets do not explicitly indicate their use in construction joints is not permissible.
c. Surface retarder shall result in a uniformly roughened surface with a full amplitude of not less than 1/4 inch.
d. Contractor shall provide test panel of appropriate size for evaluating the effectiveness of the treatment. Test Panel shall represent a minimum of four mixtures representing four depths of etch. Test panel shall remain onsite for the duration of concrete work and shall be the standard against which all future construction joint roughened surfaces shall be compared. e. Construction joints with a surface roughness that do not meet the minimum amplitude, in the opinion of the Engineer, shall require supplemental manual roughening, at the Contractor’s expense.

6. In lieu of the above method for bonding plastic concrete to hardened concrete, the following optional method may be used. Concrete must be allowed to set a minimum of 28 days. Use a latex-bonding agent applied to roughened and cleaned surfaces of set concrete in strict accordance with manufacturer's recommendations.

7. Provide waterstops in all wall and slab construction joints in liquid containment structures and at other locations shown on the Drawings.

8. Keyways shall not be used in construction joints unless specifically shown on the Drawings or approved by the ENGINEER.

B. Control Joints:

1. Provide sealant grooves, sealants, and waterstops at control joints in slabs on grade or walls as detailed. Provide waterstops at all wall and slab control joints in water containment structures and at other locations shown on the Drawings.

2. Control joints may be sawed if specifically approved by the ENGINEER. If control joint grooves are sawed, properly time the saw cutting with the time of the concrete set. Start cutting as soon as concrete has hardened sufficiently to prevent aggregates from being dislodged by the saw. Complete cutting before shrinkage stresses have developed sufficiently to induce cracking. No reinforcing shall be cut during sawcutting.

3. Extend every other bar of reinforcing steel through control joints or as indicated on the Drawings. Where specifically noted on the Drawings, coat the concrete surface of the joint with a bond breaker before placing new concrete against the joint. Avoid coating reinforcement or waterstops with bond breaker at these locations.

C. Expansion Joints:

1. Do not extend through expansion joints, reinforcement, or other embedded metal items that are continuously bonded to concrete on each side of the joint.

2. Position premolded joint filler material accurately. Secure the joint filler against displacement during concrete placement and compaction. Place joint filler over the

Page 849 of 2338 ends

TJCAA – March 2023 03150 - 5 City of Ukiah
592-50-22-14 Concrete Joints and Joint Accessories Thickening and Dewatering Improvements
face of the joint, allowing for sealant grooves as detailed on the Drawings. Tape all joint filler splices to prevent intrusion of mortar. Seal expansion joints as shown on the Drawings.

3. Expansion joints shall be 3/4 inch in thickness unless otherwise noted on the Drawings.

END OF SECTION

Page 850 of 2338 ends

TJCAA – March 2023 03150 - 6 City of Ukiah
592-50-22-14 Concrete Joints and Joint Accessories Thickening and Dewatering Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 851 of 2338 ends

TJCAA – March 2023 03200 - 1 City of Ukiah
592-50-22-14 Concrete Reinforcement Thickening and Dewatering Improvements
SECTION 03200

CONCRETE REINFORCEMENT
PART 1 - GENERAL

1.01 WORK INCLUDED
A. Furnish all labor, materials, equipment and incidentals required and install all concrete reinforcement complete as shown on the Drawings and as specified herein.

1.02 RELATED WORK
A. Related Work Specified Elsewhere

1. Section 03100 - Concrete Formwork

2. Section 03150 - Concrete Joints and Joint Accessories

3. Section 03300 - Cast-in-Place Concrete

4. Section 03600 - Grout

5. Section 03740 - Modifications and Repair to Concrete

1.03 REFERENCE SPECIFICATIONS, CODES, AND STANDARDS
A. Federal Specifications

1. QQ-W-461H - Wire, Steel, and Carbon (round, bare and coated) B. American Concrete Institute (ACI)

1. ACI 301 - Specifications for Structural Concrete

2. ACI 315 - Details and Detailing of Concrete Reinforcement

3. ACI 318 - Building Code Requirements for Structural Concrete

4. ACI SP-66 - ACI Detailing Manual
C. American Society for Testing and Materials (ASTM)

1. ASTM A615 - Standard Specification for Deformed and Plain Carbon Steel - Bars for Concrete Reinforcement

2. ASTM A706 - Standard Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement

3. ASTM A1064 - Standard Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete
D. American Welding Society (AWS)

1. AWS D1.4 - Structural Welding Code - Reinforcing Steel E. Concrete Reinforcing Steel Institute (CRSI)

1. CRSI - Manual of Standard Practice
F. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.

Page 852 of 2338 ends

TJCAA – March 2023 03200 - 2 City of Ukiah
592-50-22-14 Concrete Reinforcement Thickening and Dewatering Improvements

1.04 SUBMITTALS
A. Reinforcing Steel - Submit to the ENGINEER, in accordance with Division 1, placement drawings conforming to the recommendations of ACI 315. All reinforcement in a concrete placement shall be included in a single placement drawing or cross-referenced to the pertinent main placement drawing. The main drawing shall include the additional reinforcement (around openings, at corners, etc.) shown on the standard details sheets.

Bars to have special coatings and/or to be of special steel or special yield strength are to be clearly identified. Shop drawings shall not be prepared by reproducing the plans and details indicated on the Contract drawings but shall consist of completely redrawn plans and details as necessary to indicate complete fabrication and installation of reinforcing steel. Including, but not limited to, large scale drawings at joints, detailing bar placement in congested areas.

B. Bar Bending Details - The bars shall be referenced to the same identification marks shown on the placement drawings. Bars to have special coatings and/or to be of special steel or special yield strength shall be clearly identified.

C. Mechanical Connectors - Submit two samples of each type of mechanical reinforcing steel connectors.

D. Test Reports - Submit test reports for each of the following items:

1. Mill Test - Submit a certified copy of a mill test on each steel proposed for use showing the physical properties of the steel and the chemical analysis.

2. Foreign Manufactured Steel - Submit a certified copy of test reports for each foreign manufactured steel proposed for use in the fabrication of reinforcement.

The tests shall be specifically made for this project at the expense of the CONTRACTOR by a domestic independent testing laboratory certified to perform the tests. The testing shall be for conformity to the applicable ASTM standard(s).

E. Certification

1. Submit certification that welders are qualified in accordance with AWS D1.4 when welding of reinforcement is required.

1.05 QUALITY ASSURANCE
A. In no case shall any reinforcing steel be covered with concrete until the installation of the reinforcement, including the size, spacing, and position of the reinforcement has been observed by the ENGINEER and the ENGINEER's release to proceed with concreting has been obtained. The ENGINEER shall be given ample prior notice of the readiness of placed reinforcement for observation. The forms shall be kept open until the ENGINEER has completed observations of the reinforcing steel.

1.06 DELIVERY, STORAGE, AND HANDLING
A. Reinforcing steel shall be substantially free from mill scale, rust, dirt, grease, or other foreign matter.

B. Reinforcing steel shall be shipped and stored with bars of the same size and shape, fastened in bundles with durable tags, marked in a legible manner with waterproof markings showing the same "mark" designations as those shown on the submitted Placement Drawings.

C. Reinforcing steel shall be stored off the ground, protected from moisture, and kept free from dirt, oil, or other injurious contaminants.

Page 853 of 2338 ends

TJCAA – March 2023 03200 - 3 City of Ukiah
592-50-22-14 Concrete Reinforcement Thickening and Dewatering Improvements
PART 2 - PRODUCTS

2.01 GENERAL REQUIREMENTS
A. The use of a manufacturer's name and model or catalog number is for the purpose of establishing the standard of quality and general configurations desired.

2.02 MATERIALS
A. Materials shall be new and shall comply with the following material specifications.

B. Deformed concrete reinforcing bars are to be ASTM A615, Grade 60 deformed bars.

C. Concrete Reinforcing Bars required on the Drawings are to be Field Bent or Welded - ASTM A706.

D. [Spiral Reinforcement shall comply with the following:

1. ASTM A615, Grade 60 for hot-rolled plain or deformed bars

2. ASTM A1064 for cold-drawn wire]
E. The following alternative materials are allowed:

1. ASTM A706, Grade 60 shall be used. The following requirements shall be satisfied:
a. The actual yield strength of the reinforcing steel based on mill tests shall not exceed the specified yield strength by more than 18,000 pounds per square inch (psi). Retests shall not exceed this value by more than an additional 3,000 psi.
b. The ratio of the actual ultimate tensile strength to the actual tensile yield strength of the reinforcement shall not be less than 1.25. c. The carbon equivalency of the bars shall be 0.55 or less.

F. Reinforcing Steel Accessories:

1. Plastic protected bar supports shall comply with CRSI Bar Support Specifications, Class 1 - Maximum Protection.

2. Stainless steel protected bar supports shall comply with CRSI Bar Support Specifications, Class 2 - Moderate Protection.

3. Precast concrete block bar supports (dobies) shall comply with CRSI Bar Support Specifications, Precast Block. Block shall have equal or greater compressive strength than the surrounding concrete.

G. Tie Wire:

1. Tie wires for Reinforcement shall be 16-gauge or heavier, black annealed wire, conforming to Federal Specification QQ-W-461H.

2.03 FABRICATION
A. Fabrication of reinforcement shall be in compliance with the CRSI Manual of Standard Practice.

B. Bars shall be cold bent. Bars shall not be straightened or re-bent.

C. Bars shall be bent around a revolving collar having a diameter of not less than that recommended by ACI 318.

D. Bar ends that are to be butt-spliced, placed through limited diameter holes in metal, or threaded shall have the applicable end(s) saw-cut. Such ends shall terminate in flat surfaces within 1.5 degrees of a right angle to the axis of the bar.

Page 854 of 2338 ends

TJCAA – March 2023 03200 - 4 City of Ukiah
592-50-22-14 Concrete Reinforcement Thickening and Dewatering Improvements
PART 3 - EXECUTION

3.01 INSTALLATION
A. Surface condition, bending, spacing, and tolerances of placement of reinforcement shall comply with CRSI Manual of Standard Practice. The CONTRACTOR shall be solely responsible for providing an adequate number of bars and maintaining the spacing and clearances shown on the Drawings.

B. Except as otherwise noted on the Drawings, the minimum concrete cover for reinforcement shall be as follows:

1. Concrete cast against and permanently exposed to earth - 3 inches

2. Concrete exposed to soil, water, sewage, sludge, and/or weather (including bottom cover of slabs over water or sewage) - 2 inches

3. Concrete not exposed to soil, water, sewage, sludge, and/or weather:
a. Slabs (top and bottom cover), walls, joists, shells and folded plate members - 1.5 inches
b. Beams and columns, primary reinforcement - 2 inches
c. Ties, spirals, and stirrups - 1.5 inches

4. Tie wires in all concrete – 1.5 inches
C. Reinforcement that will be exposed for a considerable length of time after being placed shall be coated with a heavy coat of neat cement slurry.

D. No reinforcing steel bars shall be welded either during fabrication or erection unless specifically shown on the Drawings or specified herein, or unless prior written approval has been obtained from the ENGINEER. All bars that have been welded, including tack welds, without such approval shall be immediately removed from the work. If welding of reinforcement is approved or specifically called for, it shall comply with AWS D1.4.

E. Reinforcing steel interfering with the location of other reinforcing steel, conduits, or embedded items may be moved within the specified tolerances or one bar diameter, whichever is greater. Greater displacements of bars to avoid interference shall only be made with the approval of the ENGINEER. Do not cut reinforcement to install inserts, conduits, mechanical openings, or other items without the prior approval of the ENGINEER.

F. Securely support and tie reinforcing steel to prevent movement during concrete placement.

Secure dowels in place before placing concrete.

G. Reinforcing steel bars shall not be field bent except where shown on the Drawings or specifically authorized in writing by the ENGINEER. If authorized, bars shall be cold-bent around a standard diameter spool as specified within CRSI. Do not heat bars. Closely inspect the reinforcing steel for breaks. If the reinforcing steel is damaged, replace, Cadweld, or otherwise repair as directed by the ENGINEER. Do not bend reinforcement after it is embedded in concrete unless specifically permitted on the Drawings.

3.02 REINFORCEMENT AROUND OPENINGS
A. Unless specific additional reinforcement around openings is shown on the Drawings, provide additional reinforcing steel on each side of the opening equivalent to one-half of the cross-sectional area of the reinforcing steel interrupted by the opening. The bars shall have sufficient length to develop bond at each end beyond the opening or penetration.

3.03 SPLICING OF REINFORCEMENT
A. Splices designated as compression splices on the Drawings shall be 30 bar diameters, but not less than 12 inches, unless otherwise noted.

Page 855 of 2338 ends

TJCAA – March 2023 03200 - 5 City of Ukiah
592-50-22-14 Concrete Reinforcement Thickening and Dewatering Improvements
B. Tension lap splices shall be provided at all laps in compliance with ACI 318. The length of splices shall conform to the Contract Drawings. Splices in adjacent bars shall be staggered.

Class A splices may be used when 50 percent or less of the bars are spliced within the required lap length. Class B splices shall be used at all other locations.

3.04 ACCESSORIES
A. Determine, provide, and install accessories such as chairs, chair-bars, and the like in sufficient quantities and strength to adequately support the reinforcement and prevent its displacement during the erection of the reinforcement and the placement of concrete.

B. Use precast concrete blocks (dobies) where the reinforcing steel is to be supported over soil. In no case shall such supports be continuous.

C. Stainless steel bar supports or steel chairs with stainless steel tips shall be used where the chairs are set on forms for a concrete surface that will be exposed to weather, high humidity, or liquid (including bottom of slabs over liquid-containing areas). Use of galvanized or plastic-tipped metal chairs is permissible in all other locations unless otherwise noted on the Drawings or specified herein.

D. Alternate methods of supporting top steel in slabs, such as steel channels supported on the bottom steel or vertical reinforcing steel fasteners to the bottom and top mats may be used if approved by the ENGINEER.

3.05 INSPECTION
A. In no case shall any reinforcing steel be covered with concrete until the installation of the reinforcement, including the size, spacing, and position of the reinforcement, has been observed by the ENGINEER and the ENGINEER's release to proceed with the concreting has been obtained. The ENGINEER shall be given a minimum of 24 hours prior notice of the readiness of placed reinforcement for observation. The forms shall be kept open until the ENGINEER has completed observations of the reinforcing steel.

END OF SECTION

Page 856 of 2338 ends

TJCAA – March 2023 03200 - 6 City of Ukiah
592-50-22-14 Concrete Reinforcement Thickening and Dewatering Improvements
(THIS PAGE LEFT BLANK INTENTIONALLY)

Page 857 of 2338 ends

TJCAA – March 2023 03300 - 1 City of Ukiah
592-50-22-14 Cast-in-Place Concrete Thickening and Dewatering Improvements
SECTION 03300

CAST-IN-PLACE CONCRETE
PART 1 - GENERAL

1.01 WORK INCLUDED
A. Furnish all labor and materials required and install all cast-in-place concrete complete as shown on the Drawings and as specified herein.

1.02 RELATED WORK
A. Related Work Specified Elsewhere

1. Section 03100 – Concrete Forming and Accessories

2. Section 03150 – Concrete Joints and Accessories

3. Section 03210 – Concrete Reinforcement

4. Section 03350 – Concrete Finishing

5. Section 05500 – Metal Fabrications

1.03 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. American Concrete Institute (ACI)

1. ACI 304R – Guide for Measuring, Mixing, Transporting, and Placing Concrete

2. ACI 305R – Hot Weather Concreting

3. ACI 306.1 – Standard Specification for Cold Weather Concreting

4. ACI 315 – Details and Detailing of Concrete Reinforcement

5. ACI 318 – Building Code Requirements for Structural Concrete B. American Society for Testing and Materials (ASTM)

1. ASTM C31 – Standard Practice for Making and Curing Concrete Test Specimens in the Field

2. ASTM C33 – Standard Specification for Concrete Aggregates

3. ASTM C39 – Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens

4. ASTM C42 – Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete

5. ASTM C94 – Standard Specification for Ready-Mixed Concrete

6. ASTM C143 – Standard Test Method for Slump of Hydraulic Cement Concrete

7. ASTM C150 – Standard Specification for Portland Cement

8. ASTM C157 – Standard Test Method for Length Change of Hardened Hydraulic Cement Mortar and Concrete

9. ASTM C171 – Standard Specification for Sheet Materials for Curing Concrete

10. ASTM C173 – Standard Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method

Page 858 of 2338 ends

TJCAA – March 2023 03300 - 2 City of Ukiah
592-50-22-14 Cast-in-Place Concrete Thickening and Dewatering Improvements

11. ASTM C231 – Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

12. ASTM C260 – Standard Specification for Air-Entraining Admixtures for Concrete

13. ASTM C309 – Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete

14. ASTM C311 – Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete

15. ASTM C494 – Standard Specification for Chemical Admixtures for Concrete

16. ASTM C596 – Standard Test Method for Drying Shrinkage of Mortar Containing Hydraulic Cement

17. ASTM C618 – Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for use in Concrete

18. ASTM C1017 – Standard Specification for Chemical Admixtures for use in Producing Flowing Concrete
C. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.

1.04 SUBMITTALS
A. Submit to the ENGINEER, submittals including the following:

1. Sources of cement, pozzolan, and aggregates.

2. Material Safety Data Sheets (SDS) for all concrete components and admixtures.

3. Air-entraining admixture – Product data including catalogue cut, technical data, storage requirements, product life, recommended dosage, temperature considerations, and conformity to ASTM standards.

4. Water-reducing admixture – Product data including catalogue cut, technical data, storage requirements, product life, recommended dosage, temperature considerations, and conformity to ASTM standards.

5. High range, water-reducing admixture – Product data including catalogue cut, technical data, storage requirements, product life, recommended dosage, temperature considerations, retarding effect, slump range, and conformity to ASTM standards. Identify proposed locations for use.

6. Concrete mix design for each formulation of concrete proposed for use including constituent quantities per cubic yard, water-cementitious materials ratio, type, and manufacturer of cement, compressive strength, concrete slump, shrinkage, and air content. Provide with (a) or (b) below for each mix proposed. a. Standard deviation data for each proposed concrete mix based on statistical records,
b. OR
c. The curve of water-cementitious materials ratio versus concrete cylinder strength for each formulation of concrete proposed based on laboratory tests. The cylinder strength shall be the average of the 28-day cylinder strength test results for each mix. Provide results of 7- and 14-day tests if available.

7. Sheet curing material – Product data including catalogue cut, technical data, and conformity to ASTM standards.

Page 859 of 2338 ends

TJCAA – March 2023 03300 - 3 City of Ukiah
592-50-22-14 Cast-in-Place Concrete Thickening and Dewatering Improvements

8. Liquid curing compound – Product data including catalogue cut, technical data, storage requirements, product life, application rate, and conformity to ASTM standards. Identify proposed locations of use.

9. Samples – Fine and coarse aggregates if requested by the ENGNEER.

10. Test Reports - Submit test reports for each of the following items:
a. Fine aggregates – Sieve analysis, physical properties, and deleterious substances
b. Coarse aggregates – Sieve analysis, physical properties, and deleterious substances
c. Cements – Chemical analysis and physical properties for each type d. Pozzolans – Chemical analysis and physical properties

11. Certifications:
a. Certify that admixtures used in the same concrete mix are compatible with each other and the aggregates.
b. Certify that the Contractor is not associated with the independent testing laboratory nor does the Contractor or its officers have a beneficial interest in the laboratory.

12. Work Plans:
a. Hot weather concreting
b. Cold weather concreting

1.05 QUALITY ASSURANCE
A. Reinforced concrete shall comply with ACI 318, and other stated requirements, codes, and standards. The most stringent requirement of the codes, standards, and this Section shall apply when conflicts arise.

B. Only one source of cement and aggregate shall be used on any one structure. Concrete shall be uniform in color and appearance.

C. Well in advance of placing concrete, discuss with the ENGINEER the sources of individual materials and batched concrete proposed for use. Discuss placement methods and curing.

Propose methods of hot and cold weather concreting as required.

D. A meeting shall be held before placement of plasticized concrete. The plasticizer (highrange water-reducer) manufacturer’s representative and the Contractor shall be available to discuss the properties and techniques of batching and placing plasticized concrete.

E. If, during the progress of the work, it is impossible to secure concrete of the required workability and strength with the materials being furnished, the ENGINEER may order such changes in proportions or materials, or both, as may be necessary to secure the desired properties. All changes so ordered shall be made at the CONTRACTOR's expense.

F. If, during the progress of work, the materials from the sources originally accepted change in characteristics, the CONTRACTOR shall, at their expense, make new acceptance tests of aggregates and establish new design mixes.

G. Testing of the following materials shall be furnished by the CONTRACTOR to verify conformity with this Specification Section and the stated ASTM Standard(s).

1. Fine aggregates for conformity to ASTM C33 – sieve analysis, physical properties, and deleterious substances

2. Coarse aggregates for conformity to ASTM C33 – sieve analysis, physical properties, and deleterious substances

Page 860 of 2338 ends

TJCAA – March 2023 03300 - 4 City of Ukiah
592-50-22-14 Cast-in-Place Concrete Thickening and Dewatering Improvements

3. Cements for conformity to ASTM C150 – chemical analysis and physical properties

4. Pozzolans for conformity to ASTM C618 – chemical analysis and physical properties

5. Proposed concrete mix design(s) – compressive strength, slump, shrinkage, and air content
H. All materials incorporated in the work shall conform to accepted samples.

1.06 DELIVERY, STORAGE, AND HANDLING
A. Cement – Store cement in weathertight buildings, bins, or silos to provide protection from dampness and contamination and to minimize warehouse set.

B. Aggregate – Arrange and use stockpiles to avoid excessive segregation or contamination with other materials or with other sizes of like aggregates. Build stockpiles in successive horizontal layers not exceeding 3 feet in thickness. Complete each layer before the next is started. Do not use frozen or partially frozen aggregate.

C. Sand – Arrange and use stockpiles to avoid contamination. Allow sand to drain to uniform moisture content before using. Do not use frozen or partially frozen sands.

D. Admixtures – Store in closed containers to avoid contamination, evaporation, or damage.

Provide suitable agitating equipment to assure uniform dispersion of ingredients in admixture solutions that tend to separate. Protect liquid admixtures from freezing and other temperature changes that could adversely affect their characteristics.

E. Pozzolan – Store in weathertight buildings, bins, or silos to provide protection from dampness and contamination.

F. Sheet Curing Materials – Store in weathertight buildings or off the ground and under cover.

G. Liquid curing compounds – Store in closed containers.

PART 2 - PRODUCTS

2.01 GENERAL REQUIREMENTS
A. The use of a manufacturer's name and model or catalog number is for the purpose of establishing the standard of quality and general configuration desired.

B. Like items of materials shall be the end products of one manufacturer in order to provide standardization for appearance, maintenance, and manufacturer's services.

2.02 MATERIALS
A. Materials shall comply with this Section and any applicable state or local requirements.

B. Cement – Domestic Portland cement shall comply with ASTM C150 Type II. Air-entraining cement shall not be used. The cement brand shall be subject to approval by the ENGINEER and one brand shall be used throughout the work.

C. Fine Aggregates – Fine aggregates shall be washed inert natural sand conforming to the requirements of ASTM C33.

D. Coarse Aggregates – Coarse aggregates shall be well-graded crushed stone or washed gravel conforming to the requirements of ASTM C33. Grading requirements shall be as listed in ASTM C33 Table 2 for the specified coarse aggregate size number. Limits of deleterious substances and physical property requirements shall be as listed in ASTM C33 Table 3 for severe weathering regions. Size numbers for concrete mixes shall be as shown in Table 1 herein.

Page 861 of 2338 ends

TJCAA – March 2023 03300 - 5 City of Ukiah
592-50-22-14 Cast-in-Place Concrete Thickening and Dewatering Improvements
E. Water – Water shall be potable and free from injurious amounts of oil, acids, alkalis, salts, organic matter, or other deleterious substances.

F. Admixtures – Admixtures shall be free of chlorides and alkalis (except for those attributable to water). When it is required to use more than one admixture in a concrete mix, the admixtures shall be from the same manufacturer. Admixtures shall be compatible with the concrete mix including other admixtures [and shall be suitable for use in contact with potable water after 30 days of concrete curing].

1. Air-Entraining Admixture – The admixture shall comply with ASTM C260.

Proportioning and mixing shall be in accordance with manufacturer's recommendations.

2. Admixtures causing retarded or accelerated setting of concrete shall not be used without written approval from the ENGINEER. When allowed, the admixtures shall be retarding or accelerating water-reducing or high-range water-reducing admixtures.

3. Water-Reducing Admixture – The admixture shall comply with ASTM C494, Type A. Proportioning and mixing shall be in accordance with manufacturer's recommendations.

4. High-Range Water-Reducer (Plasticizer) – The admixture shall comply with ASTM C494, Type F and shall result in nonsegregating plasticized concrete with little bleeding and with the physical properties of low water/cement ratio concrete. The treated concrete shall be capable of maintaining its plastic state in excess of 2 hours. Proportioning and mixing shall be in accordance with manufacturer's recommendations.

G. Pozzolan (Fly Ash) – Pozzolan shall be Class F fly ash complying with ASTM C618, except the Loss On Ignition (LOI) shall be limited to 3 percent maximum.

H. Sheet Curing Material – Sheet curing material shall be waterproof paper, polyethylene film, or white burlap-polyethylene sheeting, all of which must comply with ASTM C171.

I. Liquid Curing Compound – Liquid membrane-forming curing compound shall comply with the requirements of ASTM C309, Type 1-D (clear or translucent with fugitive dye) and shall contain no wax, paraffin, or oil.

2.03 CONCRETE MIXES
A. Development of mix designs and testing shall be by an independent testing laboratory acceptable to the ENGINEER but engaged by and at the expense of the CONTRACTOR.

B. Select proportions of ingredients to meet the design strength and materials limits specified in Table 1 and to produce concrete having proper placability, durability, strength, appearance, and other required properties. Proportion ingredients to produce a homogenous mixture that will readily work into corners and angles of forms and around reinforcement without permitting materials to segregate or allowing excessive free water to collect on the surface.

1. The design mix shall be based on standard deviation data of prior mixes with essentially the same proportions of the same constituents or, if such data is not available, be developed by a testing laboratory, acceptable to the ENGINEER, engaged by and at the expense of the CONTRACTOR. Acceptance of mixes based on standard deviation shall be based on the modification factors for standard deviation tests contained in ACI 318. The water content of the concrete mix, determined by laboratory testing, shall be based on a curve showing the relation between the water-cementitious ratio and 7- and 28-day compressive strengths of concrete made using the proposed materials. The curves shall be determined by four or more points, each representing an average value of at least

Page 862 of 2338 ends

TJCAA – March 2023 03300 - 6 City of Ukiah
592-50-22-14 Cast-in-Place Concrete Thickening and Dewatering Improvements
three test specimens at each age. The curves shall have a range of values sufficient to yield the desired data, including the specified design strengths as modified below, without extrapolation. The water content of the concrete mixes to be used, as determined from the curve, shall correspond to strengths 16 percent greater than the specified design strengths. The resulting mix shall not conflict with the limiting values for maximum water-cementitious ratio and net minimum cementitious content as specified in Table 1.

C. Compression Tests – Provide testing of the proposed concrete mix or mixes to demonstrate compliance with the specified design strength requirements in conformity with the above paragraph.

D. Entrained air, as measured by ASTM C231, shall be as shown in Table 1.

1. If the air-entraining agent proposed for use in the mix requires testing methods other than ASTM C231 to accurately determine air content, make special note of this requirement in the admixture submittal.

E. Slump of the concrete as measured by ASTM C143, shall be as shown in Table 1. If a highrange water-reducer (plasticizer) is used, the slump indicated shall be that measured before plasticizer is added. Plasticized concrete shall have a slump ranging from 7 to 10 inches.

F. Proportion admixtures according to the manufacturer's recommendations. Two or more admixtures specified may be used in the same mix provided that the admixtures in combination retain full efficiency and have no deleterious effect on the concrete or on the properties of each other.

Table 1
Concrete Mix Requirements
Class
Design
Strength
(1)
Cement
(2)
Fine
Aggregate
(2)
Coarse
Aggregate
(3)
Cementitious
Content
lbs./cu. yd. (min)
(4)
A 2500 C150 Type II C33 57 440
B 3000 C150 Type II C33 57 480
D 4000 C150 Type II C33 57 560
Class
W/C
Ratio (Max.)
(5)
Fly Ash
(6)
AE Range
(7)
WR
(8)
HRWR
(9)
Slump
Range
Inches
A 0.62 -- 3.5 to 5 Yes No 1–4
B 0.54 -- 3.5 to 5 Yes No 1–3
D 0.40-0.42 15–25% 3.5 to 5 Yes No 3–5
NOTES:
(1) Minimum compressive strength in pounds per square inch at 28 days (2) ASTM designation
(3) Size Number in ASTM C33
(4) Cementitious content in pounds per cubic yard
(5) W/C is water-cementitious ratio by weight
(6) Percent content of total cementitious material
(7) AE is percent air entrainment
(8) WR is water-reducer admixture
(9) HRWR is high-range water-reducer admixture

Page 863 of 2338 ends
← All documents from this meeting