1-ES1-3 - CQA Plan - Revised 1JAN18 · CQA Plan 17-005 January 2018 Page 2 of 32 Wilson Engineers, LLC CONCRETE RESERVOIR REHABILITATION PROGRAM 64th Street. Reservoir No. 3 …

Wilson Project No.:17‐005

CQA Plan 17-005 January 2018 Page 2 of 32 Wilson Engineers, LLC

CONCRETE RESERVOIR REHABILITATION PROGRAM 64th Street. Reservoir No. 3 (1-ES1-3) Rehabilitation Project COP Project No.: WS85050050-1

CONSTRUCTION QUALITY ASSURANCE PLAN

TABLE OF CONTENTS

1.0 INTRODUCTION ...............................................................................................................0 1.1 PLAN PURPOSE.....................................................................................................0

1.2 ASSIGNMENTS......................................................................................................0

2.0 SCOPE .................................................................................................................................1 2.1 DEFINITION OF QUALITY CONTROL VERSUS QUALITY ASSURANCE ..1

2.1.1 Quality Control ............................................................................................1

2.1.2 Quality Assurance ........................................................................................2

3.0 PARTIES TO THE WORK AND RESPONSIBILITIES ...................................................0 3.1 OWNER ...................................................................................................................0

3.2 ENGINEER OF RECORD FOR CONSTRUCTION AND CQA DIRECTOR .....0

3.3 ENGINEER OF RECORD (OFFICE ENGINEER) ................................................0

3.4 SURVEYOR ............................................................................................................0

3.5 GENERAL CONTRACTOR ...................................................................................1

3.6 CQA ENGINEER ....................................................................................................1

3.7 CQA FIELD REPRESENTATIVE .........................................................................1

3.8 REGULATORY AGENCY FOR DAM SAFETY..................................................2

4.0 CQA TEAM SPECIFIC FUNCTIONS AND RESPONSIBILITIES .................................0 4.1 CQA DIRECTOR ....................................................................................................0

4.2 CQA ENGINEER OF RECORD (OFFICE ENGINEER) ......................................0

4.3 CQA ENGINEER ....................................................................................................1

4.4 CQA FIELD REPRESENTATIVE .........................................................................1

5.0 MEETINGS .........................................................................................................................0 5.1 PRE-CONSTRUCTION CONFERENCE ...............................................................0

5.2 PROGRESS MEETINGS ........................................................................................1

5.3 PROBLEM OR WORK DEFICIENCY MEETINGS .............................................2

6.0 SITE VISITS AND GENERAL OBSERVATIONS ...........................................................0

7.0 CQA FIELD REPRESENTATIVE GENERAL OBSERVATIONS ..................................0

8.0 CQA FOR CONCRETE & GROUT ...................................................................................0 8.1 CONCRETE & GROUT MATERIALS ..................................................................0

8.2 CONCRETE & GROUT INSTALLATION ...........................................................0

8.2.1 Forms ...........................................................................................................0




8.2.2 Water Stops and Expansion Joints ...............................................................0

8.2.3 Cast-In-Place Concrete ................................................................................1

8.2.4 Grout ............................................................................................................2

9.0 CQA FOR ROOF DECKING REPLACEMENT................................................................0 9.1 ROOF MATERIALS ...............................................................................................0

9.2 ROOF INSTALLATION .........................................................................................0

10.0 CQA FOR MEMBRANE LINER .......................................................................................0 10.1 LINER MATERIALS ..............................................................................................0

10.2 LINER INSTALLATION ........................................................................................0

11.0 CQA FOR ELECTRICAL DUCTBANK INSTALLATION ..............................................0 11.1 DUCTBANK MATERIALS ...................................................................................0

11.2 DUCTBANK CONSTRUCTION ...........................................................................0

12.0 CQA FOR TESTING OF HYDRAULIC STRUCTURE ....................................................0 12.1 REQUIRED MATERIALS .....................................................................................0

12.2 HYDROSTATIC TESTING ....................................................................................0

13.0 CQA FIELD DOCUMENTATION .....................................................................................0 13.1 SUBMITTAL REVIEW ..........................................................................................0

13.2 DAILY FIELD REPORTS ......................................................................................0

13.3 FIELD TEST DATA SHEETS ................................................................................1

13.4 PHOTOGRAPHS ....................................................................................................1

13.5 CONTRACTOR’S MATERIAL SUBMITTALS ...................................................2

13.6 ACTING ON FAILING TEST ................................................................................2

13.7 CHANGE ORDERS ................................................................................................2

13.8 ON-SITE RECORDS...............................................................................................3

14.0 CQA FINAL REPORT ........................................................................................................0

15.0 ADWR FINAL INSPECTION ............................................................................................0




1.0 INTRODUCTION

This Construction Quality Assurance Plan (CQA Plan) governs the Construction Quality

Assurance services for the rehabilitation and miscellaneous repairs for potable water storage

reservoir 1-ES1-3. The reservoir is owned and operated by the City of Phoenix Water Services

Department (Owner), and is located at 6307 East Thomas Road, Scottsdale, Arizona, 85251. Due

to the construction of the existing reservoir, it is considered a dam by the Arizona Department of

Water Resources (ADWR) and is governed by ADWR regulations.

1.1 PLAN PURPOSE

The purpose of this plan is to provide a project-specific technical guide to the dam Owner and its

representatives to ensure a safe, quality project. The purpose of the plan is to also obtain sufficient

documentation during the construction process to verify conformance with the approved drawings

and specifications. The Arizona Department of Water Resources, Office of Water Engineering,

Dam Safety Section, operating within its goal of achieving safe dams in Arizona, has prepared a

template CQA Plan, which was used to develop this project-specific CQA Plan.

1.2 ASSIGNMENTS

The following individuals and/or companies shall fill the roles described in this CQA Plan:

CQA Role Assignment Phone Number

Owner City of Phoenix Water Services Department

Owner’s Contact Can Xiao, P.E. 602.256.4272

CQA Director Craig Ramsey, P.E. 602.920.1186

Engineer of Record (Construction) Craig Ramsey, P.E. 602.920.1186

Engineer of Record (Office Engineer) Philip Noonan, P.E. 602.738.1043

Surveyor TBD TBD

General Contractor TBD TBD

CQA Engineer Rudolf Ouwens, P.E. 602.738.6276

CQA Field Representative Jim Hamilton, CWI 602.904.1036

Regulatory Agency for Dam Safety Nicole Spence-Gibson (ADWR) 602.771.8658




2.0 SCOPE

This plan addresses the quality control and assurance of the construction work associated with this

project. Assurance in the quality expected on this project and conformance with approved

drawings and specifications relies upon the execution of this plan, particularly the field monitoring

and documentation of the construction activities. This CQA Plan therefore outlines in detail the

CQA procedures that must be adhered to in conjunction with the project contract, drawings, and

specifications. The construction activities requiring CQA procedures in this document include:

Meetings.

Site Visits and Observations.

Liner Installation.

Concrete Repairs.

Structural Steel Repairs.

Standing Seam Roofing System Replacement.

Installation of Mixers.

Electrical Improvements.

Site Improvements.

Any conflict between the requirements of this document and the approved drawings and

specifications shall be reported to the Engineer, for clarification or adjudication, as required. In

general, however, the requirements of the specifications shall prevail.

2.1 DEFINITION OF QUALITY CONTROL VERSUS QUALITY ASSURANCE

There is often confusion between the definition of quality control and quality assurance. This

document refers to the provision of quality control and quality assurance for various components

of the project:

2.1.1 Quality Control

Quality Control refers to those actions, including observations and testing of materials and in-place

work, taken by the Contractor for his assurance that the final work offered to the Owner is in

compliance with the project drawings and specifications. During each aspect of the construction,

quality control is provided by the manufacturer, fabricator, supplier, and installer of materials. The

results of a quality control program are documented and compared to the drawings and

specifications or other contractual or regulatory requirements to assess the quality of the in-place




work and to ensure that the final materials and workmanship conform to the drawing and

specifications. Quality Control responsibility is retained by the Contractor who has the direct

control over quality of materials, qualifications of personnel, including specialized experience or

expertise, type and quantity of equipment, scheduling, sequencing, and workmanship that all factor

into the quality of the finished project.

2.1.2 Quality Assurance

Quality Assurance refers to those actions, including observations and testing of materials and in-

place work, taken by the Owner for its assurance that the final work provided by the Contractor is

in compliance with the project drawings and specifications. Quality assurance is a planned and

systematic pattern of observations and testing which when documented and compared to the

drawings and specifications provides adequate confidence that the in-place work conforms to the

drawings and specifications, and any applicable regulatory requirements. The Owner uses Quality

Assurance documentation as final acceptance of the work provided by the Contractor. Quality

Assurance is provided by the Owner and its designated representatives, who typically include an

independent consulting engineering, or construction management firm, along with independent

testing laboratories. Quality assurance is important during all phases of the construction project

and is often applied to the preparation for and installation of all materials, including reinforced

concrete, grout, geosynthetics, piping, sand and gravels, and the placement and compaction of

earth and rock fill materials.




3.0 PARTIES TO THE WORK AND RESPONSIBILITIES

The successful completion of the dam construction project is dependent on the interaction and

cooperation of many parties. The following parties are represented in the project.

3.1 OWNER

The Owner will provide review and final acceptance of all contractual matters and the technical

acceptance of the final completed work.

3.2 ENGINEER OF RECORD FOR CONSTRUCTION AND CQA DIRECTOR

The Engineer of Record for Construction may also fulfill the responsibilities of the CQA Director.

They represent the Owner in contractual issues and technical acceptance of the completed work.

They will oversee the activities of the CQA Engineer related to contractual and technical matters.

They will recommend acceptance of the work by the Owner based on confirmation that CQA test

results are in compliance with the drawings and specifications. They will provide preliminary

approval of all contractual matters and make acceptance recommendations to the Owner for

progress payments and completed work.

3.3 ENGINEER OF RECORD (OFFICE ENGINEER)

The Engineer of Record (Office Engineer) shall provide clarifications to drawings and

specifications, as required, and to visit the site during critical phases to confirm compliance with

the approved drawings and specifications. Minimum site inspections should include after

excavations are completed and when the work is substantially complete, just prior to submittal of

the work to the Owner for final acceptance. The Engineer of Record has authority to stop work at

any point to address issues and develop corrective actions.

3.4 SURVEYOR

The Surveyor will survey the embankment prior to construction and all trenching and backfilling

of trenches. They will ensure that the limits of excavation as shown one the design documents are

verified. The Surveyor will ensure that survey stakes are set properly and that any temporary

benchmarks are set correctly.




3.5 GENERAL CONTRACTOR

The Contractor will perform and/or be responsible for the work of suppliers and sub-contractors

to be in compliance with the drawings and specifications, all related contractual documents, and

State and Federal Regulations and permits. The Contractor will be responsible for maintaining as-

built surveys, records, specifications, and drawings for the work performed.

3.6 CQA ENGINEER

The CQA Engineer is responsible for overall technical quality assurance and for overseeing the

daily technical activities of the CQA Field Representative. They will be kept apprised of field

progress and decisions by the CQA Field Representative and perform periodic observation of on-

site work. They will review the CQA documentation to confirm the work is in conformance with

the State approved drawings and specifications. They will provide technical acceptance of

completed work. They will provide written approval of the work to be in compliance with the

drawings and specifications to the CQA Director. The CQA Engineer may also provide review

and recommend approval of all contractual matters to the CQA Director. The CQA Engineer has

authority to stop work at any point to address issues and develop corrective actions.

3.7 CQA FIELD REPRESENTATIVE

The CQA Field representative will be a full-time on-site person responsible for the quality

assurance monitoring and documentation of all the aspects of the construction activities of the

Contractor and sub-contractors. They will typically be responsible to the CQA Engineer for

contractual and technical matters. They will have demonstrated experience in construction and

field oversight, coordinate all design and construction issues, coordinate all liaison activities, and

provide on-site construction administration. They will direct the Materials Testing Laboratory

CQA Field Technicians for quality assurance testing required by the CQA Plan and review results

of all tests, including Contractor quality control tests and documentation, for conformance to the

drawings and specifications, and provide preliminary acceptance of work for the CQA Engineer.

They will request Contractor confirmation of quantities for payments and preliminarily approve

all contractual related matters, including progress payments, prior to submittal to the CQA

Engineer. The CQA Field Representative collects all materials submitted for testing by the

Contractor, and perform all on-site quality assurance sampling and testing, including but not

limited to concrete, grout, fill materials, and filter and drain materials. The CQA Field

Representative has authority to stop work at any point to address issues and develop corrective

actions.




3.8 REGULATORY AGENCY FOR DAM SAFETY

A registered engineer from the Arizona Department of Water Resources (ADWR), Dam Safety

Section, or its representative, will be the State’s project representative. They will have the

responsibility to see that the construction of the dam is in compliance with the State approved

drawings and specifications. They will be kept appraised of field progress and decisions and they,

or other representatives of the agency acting under their direction, will make periodic inspections

to observe the work and review results of quality control and quality assurance testing to determine

that the work is in conformance with the State approved drawings and specifications. The State

dam safety representative will provide final acceptance of the work by the State to be in compliance

with State regulations.




4.0 CQA TEAM SPECIFIC FUNCTIONS AND RESPONSIBILITIES

The specific functions and responsibilities of the CQA Team personnel are presented in the

following sections:

4.1 CQA DIRECTOR

The CQA Director is responsible for overall technical quality assurance for the Owner. In

particular, the CQA Director is responsible for the following activities:

Review the design drawings and specifications for the project.

Oversee the entire CQA program and coordinates the CQA program with the CQA Engineer and the CQA Field Representative.

Attend the regularly scheduled construction progress meetings, and prepare and distribute meeting minutes to the Project members and ADWR.

Receive and review weekly reports, and provides final reviews and acceptance of laboratory and field test data submitted by the CQA Engineer for conformance with the State approved drawings and specifications.

Coordinate submittal of Contractor’s materials submittals, manufacturer’s material certifications, and material delivery manifests to ADWR.

Visit the site periodically and at critical junctures to observe the work in progress and to verify that the CQA program is being implemented correctly.

Provide preliminary approval of all contractual matters and make acceptance recommendations to the Owner for progress payments and completed work.

Receive and review the draft and Final CQA Report.

4.2 CQA ENGINEER OF RECORD (OFFICE ENGINEER)

The CQA Engineer or Record administers and directs the technical issues in the office and field,

including the following activities:

Attend Pre-Construction conference.

Review shop drawings and submittals provided by the Contractor for conformance with the requirements of the specifications and drawings; approve or reject as warranted.

Attend progress meetings and conduct site visits at critical stages of construction.

Discuss the requirements of the project specifications and drawings with the CQA team.

Schedule the CQA Team based on priorities and criticality of work being performed.

Supervise and review daily field reports from CQA Field Representative and Technicians.

Review the schedule and progress to-date and provide recommendations for corrective actions, if any.




Review construction procedures and assess that the design intent is being met.

Assist in resolving potential issues that may come up, including, but not limited to, schedules, non-conformance to drawings and specifications, methods, equipment, payment, and sequencing.

Assist in and coordinate any proposed changes to the design drawings and specifications.

Review tests, including Contractor quality control tests and documentation, for conformance to the drawings and specifications, and provide technical acceptance of work in writing to the CQA Director.

Assist with final inspections and punch list development.

Review and confirm that the Contractor is accurately transferring as-built survey and construction documentation to a set of approved construction drawings in a timely manner and that the set of drawings constitutes the red line drawings which will be provided to the Owner at completion of the project.

Assist with preparing draft and Final CQA Report.

4.3 CQA ENGINEER

The CQA Engineer shall assist the CQA Engineer of Record and will perform the following quality

assurance activities:

Prepare a weekly summary report for the CQA Director and ADWR that outlines progress, problems, and resolutions.

Submit daily reports to ADWR within 24 hours, including field and lab testing.

Coordinate site inspections required by ADWR, including observation and approval of liner replacement, and completion of work for compliance to the drawings and specifications.

4.4 CQA FIELD REPRESENTATIVE

The CQA Field Representative is the on-site representative of the CQA Engineer and will perform

the following quality assurance activities:

Attend Pre-Construction conference.

Coordinate all design and construction issues and all site liaison activities.

Provide on-site construction administration as the representative for the CQA Engineer.

Implement and document all quality assurance observations and testing required in the CQA Plan and the specifications.

Review the CQA Plan, project drawings and specifications for the work, and ensure that all CQA Field Technicians are fully informed of the requirements of the work.

Review to ensure that all relevant activities of the Contractor are monitored and documented per the CQA Plan.




Require Contractor confirmation of quantities for payments and approve all contractual related matters, including progress payments prior to submittal to the Engineer of Record for Construction.

Prepare daily field reports with annotated photographs documenting the activities of the Contractor for each day worked and transmit the reports immediately (same day) to the CQA Engineer who will submit to ADWR. The daily field reports will also include testing results, acceptance and rejection criteria that documents the construction progress.

Attend all progress meetings plus any activity-specific meetings necessary to review the installation of a critical component and/or CQA activities. Assist CQA Director in preparation of meeting minutes.

Collect, collate, and review the Quality Control documentation provided by the Contractor and the suppliers of the materials to be used on the project.

Observe and verify, by review of data made available by the Contractor, that construction is performed to the depths, lines, and grades as indicated on the drawings.

Select sample locations for conformance testing of all materials to be used in the work in accordance with the frequencies and test requirements included in the specifications and the CQA Plan, coordinate with the Materials Testing Laboratory for sample pickup and testing, and review all test results for conformance and acceptability. Test types and frequencies are included in the specifications and in Table 1 in Section 9.2, however the actual test type and frequency of testing will be at the discretion of the CQA Field Representative based on field conditions, materials to be tested, and construction sequence.

Notify the CQA Engineer of the Contractor’s schedule for requesting ADWR inspection at critical milestones. A minimum of 48 hours notice to ADWR is required.

Coordinate for replacement on-site CQA personnel to act on their behalf whenever they are absent from the site to ensure continuity during construction activities.

Coordinate as-built surveys and drawings with the Contractor and confirm as-built information is compiled and recorded as red-line markups to the approved drawings and specifications by the Contractor as the work progresses. Review the Contractor’s as-built documentation and verify that the documentation is complete as part of the project substantial completion review.

Assist in and coordinate with the CQA Engineer any proposed changes to the design drawings and specifications.

Prepare, with the CQA Team, the draft and Final CQA Report.

Regularly coordinate with all parties on a verbal basis to ensure that any problems are identified and resolved on a timely basis.




5.0 MEETINGS

Meetings of all parties are required at various times during the project based on the following

objectives:

Maintain schedule and quality of work.

Review progress.

Resolve problems.

Maintain good lines of communication.

5.1 PRE-CONSTRUCTION CONFERENCE

The Pre-construction Conference is held in advance of the start of construction, to introduce all

parties, resolve any particular issues prior to the commencement of work, and to establish the

requirements for construction quality assurance. The Contractor, CQA Personnel, ADWR, and

other interested parties will attend this meeting.

The following is a typical agenda for a pre-construction conference:

CQA Plan and Contractor’s quality control (QC) plan. Use of site by Contractor. Contract or site requirements. Construction facilities and temporary controls provided by Contractor, including drainage

and erosion controls. Survey layout. Security protocols. Site cleanliness procedures. Public relations and confidentiality protocols. Inspections required. Quality assurance of major or critical activities in the project and a methodology for

correcting deficiencies. Proposed schedules and sequence of activities. Identification of the project team responsibilities and lines of communication. The timing and distribution of project correspondence and safe storage. Lines of authority and communication. Health and safety.

The Pre-construction Conference will be concluded with a site walk-around to determine the status

of activities, and re-discuss items during the meeting (if necessary).




This conference shall be documented by the CQA Engineer and minutes prepared and circulated

to all present, plus any other interested parties.

5.2 PROGRESS MEETINGS

A Progress Meeting shall be held bi-weekly in order to review the status of the schedule, problems,

and measures for resolution of problems. These meetings will be held on-site and in conjunction

with site observations, and shall be attended by the Contractor, CQA Director, and the CQA Field

Representative. These meetings shall be documented, as required, and the decisions reached

promulgated to all affected parties. Other CQA personnel and ADWR may attend at critical

junctions of construction.

Areas of concern and potential future problems shall also be outlined, and addressed at the next

planned Progress Meeting, unless of sufficient importance or urgency as to warrant an ad hoc

meeting as determined by the CQA Engineer or CQA Field Representative.

The preliminary schedule for the Progress Meetings for this project will be established at the Pre-

construction Conference. In general, all Progress Meetings shall be held on the same day and time

every other week while construction activities are in progress.

The following is a typical agenda for a Progress Meeting:

Review minutes of previous meetings.

Review work progress.

Review of quality assurance testing.

Field observations, problems, and decisions.

Identification of problems which impede planned progress.

Review submittals schedule and status of submittals, noting critical submittals.

Review health and safety concerns and issues.

Status of construction schedule.

Corrective measures to regain projected schedules.

Planned progress during succeeding work period.

Coordination of projected progress.

Effect of proposed Change Orders on progress schedule and coordination.

Potential change conditions or review of Change Order submittals.




5.3 PROBLEM OR WORK DEFICIENCY MEETINGS

When a problem or deficiency is occurring or likely to occur, special meetings will be held to deal

with it instead of waiting until the next bi-weekly progress meeting. These meetings will be

attended by the CQA personnel and the Contractor. If necessary, the ADWR project manager may

also attend. The purpose of these meetings is to identify a problem or deficiency in the construction

work, review alternative solutions, and select and implement a plan to resolve the problem or

deficiency. The CQA Director will record and distribute minutes of the meeting.




6.0 SITE VISITS AND GENERAL OBSERVATIONS

The Engineer of Record for Construction, CQA Director, CQA Engineer, and the ADWR dam

safety representative shall conduct site visits as required, to ensure that all outstanding issues are

resolved on a timely basis, and to review personally the progress and methodology of the

Contractor and Subcontractors to assure work is being performed in compliance with the approved

drawings and specifications. The schedule of these site visits will be determined by project

progress. They will include critical aspects of work and milestone progress marks and at the

completion of the work. ADWR shall be notified 48 hours in advance of each milestone and site

visit, so as to provide ample opportunity for an ADWR representative to observe the construction

activities, and to review inspection reports and as-built drawings being maintained by the

Contractor.

In addition, the CQA Engineer of Record (Office Engineer) and the CQA Engineer will make

additional specific site visits in order to review the progress and any aspects of the project that are

particularly critical to the performance of the system or when a problem arises which cannot be

easily resolved or which impacts the safe design of the dam.

Site visits that take place in the construction area require the use of safety equipment, including

hard hats, vests, and steel-toe boots. All parties involved in the site visit shall check in at the

Contractor’s field trailer to obtain an identification badge prior to entering the site.




7.0 CQA FIELD REPRESENTATIVE GENERAL OBSERVATIONS

The CQA Field Representative shall conduct the general observations of the Contractor’s activities

listed below and including all other observations required by the specifications to verify that the

work is being performed in accordance with the specifications and drawings:

General work activities, including installation of the new polypropylene membrane liner.

Surveyor’s activities to confirm initial layouts.

Surveyor’s activities to confirm survey of as-built conditions during the work.

Material and equipment yards and access roads.

Material and equipment deliveries.

Offsite material sources.

Concrete and grout suppliers operations.

Equipment and manpower working on site.

Concrete delivery and placement.

Construction materials sampling and testing.

Work related to embankment dam repair.

Work related to electrical ductbank construction.

Work related to grouted rip rap spillway modifications.

Work related to drain vault rehabilitation.

Work related to vegetation removal.

Work related to batten strip installation.




8.0 CQA FOR CONCRETE & GROUT

The CQA Field Representative shall conduct the activities listed below and including all other

activities required by the specifications to verify that the work is being performed in accordance

with the specifications and drawings:

8.1 CONCRETE & GROUT MATERIALS

The CQA Field Representative shall verify the Contractor supplies the required concrete and grout

materials, including any required reinforcing steel or related materials, by performing the

following specific activities:

Verify the Contractor submits the appropriate manufacturer’s certification for the required anchors, water stops, expansion joints, etc.

Verify the Contractor submits the appropriate manufacturer’s certification for the mix design for the required type and strength of concrete and grout, including the minimum required sets of confirmation strength test results.

Verify the Contractor submits the appropriate manufacturer’s certification for the cement and all additives required for the concrete and grout.

Monitor and verify form materials, water stops, expansion joints, etc. are delivered and off-loaded at the site with out damage to the materials and that the materials are stored in a safe location and in a safe manner.

Verify the delivered materials are of sufficient quantity and that they comply with specifications and drawings.

8.2 CONCRETE & GROUT INSTALLATION

The CQA Field Representative shall monitor and verify the installation of concrete, grout and all

related materials by performing the following specific activities for each element of the work:

8.2.1 Forms

Verify forms are clean and installed to limits, line, and depths required.

8.2.2 Water Stops and Expansion Joints

Monitor and verify the correct type of water stop and expansion joint material is being installed to the required lines and grades.

Monitor and verify that all corners and ends points are neatly installed and welded per manufacturer’s requirements.

Monitor and verify all materials are clean and free of debris.




8.2.3 Cast-In-Place Concrete

Verify the subgrade and/or adjacent concrete is clean of all loose and deleterious materials, including improperly consolidated prior pours of cast-in-place concrete.

Verify that the rebar, anchors and forms are clean and that required clearances are present.

Verify the CQA Engineer and ADWR have approved the work for placement of concrete before approving the work for placement of concrete.

Verify the CQA Field Technicians have the required testing equipment, storage, and curing facilities and that they are available for testing during placement of concrete.

Monitor and verify the fresh concrete is dispatched to the correct project in a timely manner and that the concrete batch load matches the approved mix design.

Monitor and verify the fresh concrete is being correctly tested and sampled and that the required cylinders are being prepared.

Monitor and verify the on-site testing of the fresh concrete complies with the specifications; immediately reject any load of fresh concrete that is not in compliance.

Monitor and verify that water is not added to the fresh concrete after testing and sampling.

Monitor and verify that the fresh concrete is being correctly mixed in the truck, transported to the work, and placed without segregation.

Monitor the placement and verify that the concrete is being properly consolidated and screeded as required; concrete placed on slopes may require special measures for adequate consolidation and finishing. Verify the removal and repair of any under-consolidated concrete.

Monitor and identify cold joints in the work and verify that cold joints are properly prepared prior to placing additional concrete. Identify and approve bonding agents if utilized.

Monitor and verify water is not added to the surface of the concrete to facilitate finishing, thereby reducing the surface durability of the concrete.

Monitor and verify that approved curing methods are utilized for the finished concrete throughout the required curing period.

Monitor and verify that forms are pulled when required without damaging the work. Identify any areas of defects and/or damage and approve the method of repair per approved ACI guidelines.

Monitor and verify that all defects and damaged areas of work are satisfactorily repaired per ACI guidelines.

Review results of required compressive strength and other concrete tests performed by the CQA Laboratory for compliance with the specifications and obtain approval of the work from the CQA Engineer. Immediately inform the Contractor of any tests and associated work which is not in compliance with specifications.

Monitor and verify that any rejected work is satisfactorily replaced.

Verify that concrete dowels are placed per design.




8.2.4 Grout

Monitor progress and details of contact grouting and backfill grouting.

Monitor and verify testing of proposed grout and production grout mix(es) is performed at the required frequencies.

Review results of required grout tests, including air content, unit weight, and compressive strength.

Observe placement to verify material is placed in a uniform manner that prevents voids or segregation of material.

Monitor temperature, slump/flowability of grout prior to placement.




9.0 CQA FOR ROOF DECKING REPLACEMENT


activities required by Specification Sections 01651 and 03305 to verify that the work is being

performed in accordance with the specifications and drawings:

9.1 ROOF MATERIALS

The CQA Field Representative shall verify the Contractor supplies the required materials by

performing the following specific activities:

Verify the Contractor supplies the appropriate materials in the required quantities, i.e.; paneling, fasteners, clips, etc.

Monitor and verify that no materials be used which would be injurious to the construction or its future function.

Verify that all materials used are in new condition with no damage to coating or shape that would impair function or aesthetics.

Ensure that the Contractor protects materials from exposure to the elements and kept thoroughly dry and dust free at all times. Protect materials against impact, abrasion, discoloration, and other damage.

9.2 ROOF INSTALLATION

The CQA Field Representative shall monitor and verify the roof installation by performing the


Verify that the Contractor has removed all existing roof decking, clips, and fasteners from the substrate framing (girders, beams, purlins).

Verify that the contractor has completed all repair work specified in the Contract Documents to the tops of the substrate framing such that roof decking installation will not impede any remaining required repairs to the substrate framing.

Ensure that Contractor performs inspection of substrate framing in accordance with Specification Section 03305.3.1 to ensure that substrate framing is in correct alignment and can accept installation of roof decking.

Ensure that Contractor installs roof materials in accordance with Specification Section 03305.3.3.




10.0 CQA FOR MEMBRANE LINER


activities required by the specifications to verify that the work is being performed in accordance

with Specification Section 02222 and the drawings:

10.1 LINER MATERIALS

The CQA Engineer shall verify that the Contractor furnishes the required liner materials by

thoroughly reviewing the applicable shop drawings and submittals provided by the Contractor for

conformance with the requirements of the specifications and drawings.



Verify the Contractor submits the appropriate manufacturer’s certification for the required liner and required materials.

Monitor and verify materials are delivered and off-loaded at the site without damage to the materials and that the materials are stored in a safe location and in a safe manner.

Verify the delivered materials are of sufficient quantity and that they comply with Specification Section 02222 and the drawings.

Verify that all required shop drawing and submittal approvals have been granted by the CQA Engineer and received by Contractor prior to Contractor installing any liner materials.

10.2 LINER INSTALLATION

The CQA Field Representative shall monitor and verify the installation of liner by performing the


Verify the Contractor has cut and grinded all existing anchor bolts flush with surface to prevent damage to the new liner.

Verify that liner manufacturer’s field representative has approved condition of reservoir bottom and side slopes prior to installation of liner as an acceptable surface for placement of the liner.

Verify the Contractor has the correct type of liner and battens strips on-site for the required work.

Verify the Contractor has used proper underlying (geo-synthetics) materials.

Verify and insure that the Contractor has sealed all the joints per specifications and drawings.




Verify and insure that the Contractor has performed the leak test for the liner after installation per Specification Section 01453 and the drawings.

Verify construction is completed according to the requirements of Specification Section 02222 and the drawings, and that the work is reviewed and approved by the CQA Engineer and ADWR.

Verify and insure that the Contractor submits the appropriate liner manufacturer’s certification that the liner has been installed properly and is ready for use by the Owner.

Field testing of the liner shall be performed as indicated in Table 1.

Table 1 – Liner Test Types and Frequencies

Item to be Tested Test Type/Method Reference Test Frequency

Liner Joints/Seams Visual Section 02222;

3.3.A

100% of Seam

Length

Liner Joints/Seams Air Lance Section 02222;

3.3.A

100% of Seam

Length

Overall Liner Hydrostatic Test Section 01453 After liner

installation until test

is passed




11.0 CQA FOR ELECTRICAL DUCTBANK INSTALLATION


activities required by Specification Sections 01451, 02315, 03200, 03300, and 16137 to verify that

the work is being performed in accordance with the specifications and drawings. ADWR will

inspect and approve the trench bottom prior to material placement.

11.1 DUCTBANK MATERIALS



Verify the Contractor supplies the appropriate materials in the required quantities, i.e.; concrete, reinforcement, conduit, conduit spacers, wire, conduit connectors, fasteners, etc.


Verify Contractor submits all materials for required testing to an independent testing laboratory per Specification Section 01451.

Verify Contractor performs required field testing of compaction and density of backfill.

Ensure that all materials testing results are reported to the CQA Engineer.

Ensure that preliminary samples of backfill and concrete are submitted to CQA Engineer and ADWR before placement begins.

Ensure Contractor demonstrates the adequacy of compaction equipment and procedures before performing compaction.

Perform compliance tests on backfill compaction on behalf of the CQA Engineer to verify backfill placement and compaction procedures are appropriate.

If compaction fails to conform to specified requirements, ensure Contractor removes and replaces backfill to a sufficient density satisfactory to the CQA Engineer.

Ensure that all materials are stored properly on-site.

11.2 DUCTBANK CONSTRUCTION

The CQA Field Representative shall monitor and verify the ductbank construction by performing

the following specific activities:

Ensure that Contractor performs utility location in all areas where excavation and ductbank construction is to occur.

If uncharted or incorrectly charted utilities are found during utility location, ensure that the CQA Engineer is notified immediately to develop necessary plan to avoid disruption of utility operation and modify the ductbank design, if required.




Ensure areas of ductbank construction, including excavated areas, are cleared of trees, brush, roots, stumps, logs, wood, and other debris.

Ensure that Contractor performs excavation only in the areas shown on the Drawings.

Ensure that Contractor performs a survey of the ductbank excavation before construction of the ductbank begins.

Ensure that Contractor properly disposes of all excavation waste material off-site.

Ensure that Contractor takes proper measure to prevent erosion, stormwater runoff, and ponding of water while excavation is open and ductbank is under construction.

Ensure reinforcement anchors are placed correctly and to sufficient depth to prevent duct bank from floating.

Ensure red oxide is added to concrete mix to provide visual indication that structure is a ductbank.

Ensure conduits are firmly placed in ductbank before concrete is poured and ensure concrete is vibrated to allow it to completely fill all form voids.

Ensure ductbank ground cable is of appropriate gauge, electrically continuous, and installed as directed by the Drawings.

Ensure that conduits are cleaned and pulling ropes are installed.

Ensure that an identification ribbon is installed.

Ensure that unused conduits are sealed for future preservation.

Ensure that top of ductbank is a minimum of 24 inches below finished grade.

Ensure that all formwork, shoring, bracing, trash, and debris are removed from excavation area before backfilling begins.

Inspect and approve the trench bottom prior to ADWR inspection and material placement.




12.0 CQA FOR TESTING OF HYDRAULIC STRUCTURE


activities required by the Specification Section 01453 to verify that the work is being performed

in accordance with the specifications and drawings:

12.1 REQUIRED MATERIALS



Verify the Contractor supplies the appropriate materials, i.e.; temporary pipe, valves, bulkheads, and other water control equipment and materials.


Verify all equipment and materials should be NSF/ANSI 61 approved, shall comply with AAC R18-04-119 and shall impart no taste or odor to the water.

12.2 HYDROSTATIC TESTING

The CQA Field Representative shall monitor and verify the hydrostatic testing by performing the


Verify the Contractor has removed all scaffolding, planks, tools, rags, dirt, debris, and material not part of the structure prior to testing.

Verify the Contractor has thoroughly cleaned the walls, floors, and operating equipment by sweeping, high-pressure wash, scrubbing, or other approved methods.

Verify that the structure is free of visible leakage.

Verify all valves, gates, blind flanges, and other items, other than concrete, that control the flow of or otherwise retain the liquid contents of the structure are closed and sealed watertight. If not watertight, measures shall be provided to ensure water-tightness during the hydrostatic test.

Verify that the hydraulic structures shall remain filled with clean water for an initial 48-hour period to allow for adsorption. Following this initial period, make-up water shall be added to fill the hydraulic structure to the specified water surface test elevation.

Verify and insure that the test duration is not be less than 24 hours.

Verify and insure that the measured leakage is less than allowable leakage as indicated in the Specification Section 01453.

Verify the test is completed to Specification Section 01453 and that work is reviewed and approved by the CQA Engineer and ADWR.




13.0 CQA FIELD DOCUMENTATION

13.1 SUBMITTAL REVIEW

For all submittals, deviations, and shop drawings, ADWR must have 5 working (business) days to

complete the review process. Multiple submittals will be reviewed consecutively and not

concurrently.

13.2 DAILY FIELD REPORTS

The CQA Field Representative shall document field observations and the general results of field

tests in the daily field reports, including the following:

Name.

Company name.

Date.

Start time and ending time.

Weather.

Job reference number.

Contractor or subcontractor on-site.

Major equipment on-site and/or used (or list).

Page number.

Conversations related to project.

Activities performed that consumed the day.

Activities performed started or restarted that day.

Activities performed, started or completed critical to the project.

Annotated photographs of activities.

Reference attached test results, sketches, photos, etc.

Location of activities, including facility name, control line and station, offset distances, elevation, materials used, material sources, material quantities and materials tested.

Confirmation that as-built drawings are being maintained up-to-date by Contractor.

Problems encountered, locations and resolutions implemented.

Identification of potential claim issues and Change Orders.

Reference and attach field test data sheets.




13.3 FIELD TEST DATA SHEETS

All field tests will be documented by the Contractor using approved Inspection/Testing Data

Sheets. These records will be provided daily to the CQA Field Representative for inclusion as part

of the daily summary reports. All field testing will follow specified test procedures and methods

of data recording. Observations and test in the field and laboratory may be in the form of notes,

charts, drawings or sketches, photographs, or any combination of the above. The

Inspection/Testing Data Sheets will contain the following information:

Date, name of project and location.

Description and title of the construction and related inspection activity.

Time the activity was performed.

Location of the inspection activity.

Photographs of construction activity.

Weather and site conditions.

Standard test method used or type of inspection activity.

Test equipment used.

Record of observation and test data, with all calculations completed and checked.

Construction methods and equipment origin material and general description of conditions.

Comparison of test results and observations to the specification requirements and indicate Pass or Fail.

Names and titles of all persons involved in the inspection activity.

Record of materials and workmanship that do not meet specified design and corrective action measures and results taken.

Signature of appropriate inspection personnel.

All field and lab tests shall be correlated with the actual location the materials are placed including stationing, offset and elevation.

Results of all test (lab, field, passing or failing) must be reported on summary sheets and submitted to ADWR.

13.4 PHOTOGRAPHS

The CQA Field Representative shall obtain daily photographic documentation of the following

project activities:

Existing conditions.

Progress of key activities at the various steps or phases of implementation.

Areas or items that are planned to be buried and not expected to be seen.

Areas of unacceptable work and the work performed to remediate the area.




Completed components of work as project progress.

Completed project from various views (taken in last few days of work).

Representative photographs shall be attached to the daily reports and a full set of photographs shall

be included in the CQA Final Report to the Owner and ADWR.

13.5 CONTRACTOR’S MATERIAL SUBMITTALS

The CQA Field Representative shall conduct the following activities regarding Contractor’s

materials submittals and as required in the specifications:

Log the receipt of Contractor’s submittals and correspondence.

Review submittals for schedules.

Review Quality Control plan.

Review submittals for as-built data.

13.6 ACTING ON FAILING TEST

The results of all tests, whether laboratory or field, passing or failing, shall be reported in the

Inspection Data Sheets. Failing tests cannot be replaced by passing tests without an intervening

corrective measure and failing QC tests cannot be replaced with passing QA tests, or vice versa.

Tests that do not meet the requirements of the specifications of this CQA Plan call for the following

actions:

The area and volume of material represented by the failing test will be assessed so that appropriate remedial measures can be evaluated. Additional tests will be used to define the affected area, as necessary.

The CQA Field Representative will determine the appropriate corrective action and direct the Contractor’s superintendent regarding said action.

The required corrective action, results of verification testing, and other documentation regarding the corrective action will be recorded in the Field Test Data Sheets.

13.7 CHANGE ORDERS

One of the major responsibilities of the CQA Field Representative will be to observe actual site

conditions during the progress of construction work to determine whether design changes are

necessary to accommodate unforeseen site conditions. Changes required in the work that deviate

from the approved contract documents that have an impact on the design of facilities that are

jurisdictional to ADWR, must be reviewed and approved by ADWR prior to the implementation

of the changes in the construction work. In an attempt to reduce delays in the construction work,




the CQA Field Representative will notify the agencies of forthcoming Change Orders by phone or

facsimile prior to formal submittal of the Change Order request. No change will be executed until

all required approvals are obtained, including approval from the Owner, Engineer of Record, CQA

Director, and ADWR.

13.8 ON-SITE RECORDS

A copy of all Project construction records will be maintained by the CQA Field Representative in

the Project office for the duration of the Project. These Project records will be maintained in files

that will be open for Owner and ADWR review. At the completion of the Project, all construction

records will be returned to the CQA Director for filing under the direction of the Engineer of

Record for Construction.

The Contractor’s as-built records including survey and drawings will be maintained by the

Contractor and will be open for Owner and ADWR review. The Contractor will provide the CQA

Field Representative copies of as-built records within three weeks after completion of major

elements of the contract work for the CQA Field Representative’s on-site records file. The

Contractor must provide confirmation survey points of major elements of work after completion

of this work and shall show this information, along with all as-built changes, on the record set of

full size as-built construction drawings.

Project records include the following:

Contractor submittals.

Meeting minutes.

General correspondence.

Weekly progress reports.

Daily field reports.

Field Test Data Sheets.

Change Orders.

As-built survey, material quantities and drawings.




14.0 CQA FINAL REPORT

The project will be considered to be complete when the reservoir is filled and placed online after

completion of all improvement works. Upon completion of the project, the CQA Engineer will

prepare the CQA Final Report. This report will be the final record of the Construction Quality

Assurance information for the site. In general, the report shall include all submittal items discussed

in this CQA Plan. This shall include, at a minimum:

A brief completion report describing activities, deviations from design and material specifications, and quality of work.

An affidavit showing the actual cost of the construction, including a detailed accounting of the costs, including all engineering costs.

An additional fee or refund request based on the actual cost of the construction.

Field notes and reports from the installation procedure, including such information as weather and unusual circumstances.

Construction records, including grouting, materials testing, locations and baseline readings for permanent bench marks and instrumentation, initial surveys, and readings.

Compilation of copies of photographic documentation of construction activity from exposure to completion of construction.

The results of all materials testing, including both in situ field testing and laboratory testing in an appendix.

A full size set of contract construction drawings showing as-constructed dimensions, grades, locations, products, etc. sealed by the Engineer of Record for Construction. The drawings must show confirmation survey points and elevations.

The report shall also provide a narrative description, in general, of the site's construction, noting

all unusual occurrences encountered (i.e., failed seams, extreme weather, etc.). This report will be

stamped by a Registered Professional Engineer in Arizona to certify construction was completed

in general accordance with approved design drawings, special provisions and other applicable

contract documents, with exceptions noted. This report shall be provided to ADWR within 90

days after the completion of work.




15.0 ADWR FINAL INSPECTION

A final inspection of the construction shall be completed by ADWR within 90 days after the

completion of the work. In addition the following information shall be filed with the Department;

An affidavit showing the actual cost of the construction, including a detailed accounting of the costs, including all engineering costs;

An additional fee or refund request based on the actual cost of construction;

One set of full sized as constructed drawings prepared and sealed by the Engineer who supervised the construction;

Construction records, including grouting, materials testing, and locations and baseline readings for permanent bench marks and instrumentation, initial surveys, and readings;

Photographs of construction from exposure to completion of construction; and

A brief construction completion report summarizing salient features of the project, including a description of the causes for any changes or deviations from the approved drawings and specifications that were made during the construction phase.