AGREEMENT FOR PROFESSIONAL, TECHNICAL, OR EXPERT SERVICES

EXHIBIT A

CBWTP Dry Weather Primary Clarifier Expansion Project

Statement of Work

and

Payment Schedule

TABLE OF CONTENTS

I.  Statement of Work  2

II.  General Project Description  2

III.   Schedule of Work  3

IV. Contractor’s Personnel  3

V.   Project Goals and Objectives  3

VI.  Scope of Work  3

Task 1: Predesign Services  4

Task 2: Design Services  8

Task 3: Bid Phase Services  10

Task 4: Services During Construction  10

Task 5: Project ManagementContract Administration  12

VII.  Payment Schedule  13

Billing and Payment Procedure  14

Invoice Forms  15

EXHIBIT A

Statement of Work and Payment Schedule

I.  Statement of Work

The CBWTP Dry Weather Primary Clarifier Expansion Project (Project 6905) is one of a series of capital improvement projects associated with the control of combined sewer overflow (CSO) in the Willamette River basin in the City of Portland. Principally, the project adds additional dry weather clarifier treatment capacity at the CBWTP to handle projected dry weather flows from the Willamette River basin CSO control systems. The original construction of the first three dry weather clarifiers allowed those to be placed into service in the spring 2001, providing primary dry weather treatment capacity of 120 mgd.

II.  General Project Description

The CBWTP Dry Weather Primary Clarifier Expansion Project (CBWTP/DWCL) will expand the primary treatment capacity at the CBWTP to deal with future flows and loads to the plant associated with the implementation of the Willamette River basin CSO Control Plan (WRCSOCP). The facility will be sized to accommodate the increased flows from both the Phase 1 (West Side) and Phase 2 (East Side) components of the WRCSOCP as defined in the Willamette River CSO Predesign Project (WRPP) Technical Memorandum. Based on the current planning, the facility will need to handle dry weather flows of 160 mgd.

The final product of this contract will be the design of a fourth dry weather primary clarifier with associated sludge and scum handling facilities, as well as extensions to the existing pumping gallery and yard piping/channels required to direct plant influent to the facility and on to downstream processes.

The City of Portland Bureau of Environmental Services (BES) defines and programs capital projects in the following sequential phases:

1.  Predesign

2.  Design

3.  Bid and Award

4.  Construction

5.  Startup and Closeout

This Scope of Work (SOW) is for professional services during the design phase, bid and award phase, and construction phase of the CBWTP/DWCL project. The major work elements are:

A.  Predesign Services, including Project Definition and Schematic Design and Value Engineering

B.  Design Services, including Design Development and Final Detailed Design

C.  Bid Phase Services

D.  Services During Construction

E.  Project ManagementContract Administration

The City of Portland BES Project Manager is Vu Han (503/823-2635)

III.    Schedule of Work

Work shall start within 10 working days after notice to proceed. Contractor shall complete final design services and submit Final Contract Documents, Final Construction Cost Estimate, and a final Construction Schedule to the City on or before November 15, 2006. See attached schedule.

IV.  Contractor’s Personnel

The following key personnel will be assigned to do the work for this project:

 Jim Goetz    Principal-in-charge

 Dave Green    Project manager

 Jim Griffiths    Design Manager

 Herb Fricke    Lead Process

V.  Project Goals and Objectives

The goals of this project are to:

•  Provide a design that will satisfy the technical requirements of the Willamette River basin CSO Control Plan as defined in the Willamette River CSO Predesign Technical Memorandum.

•  Meet the schedule requirements for the completion of the project as defined in the RFP.

•  Complete the project within the budget established in the contract for the project.

The objectives of the project are to:

•  Work together as an effective and efficient design team.

•  Provide an efficient and cost-effective design of the required facilities.

•  Utilize existing available facilities to minimize the construction cost of the design.

•  Communicate with and incorporate plant staff inputs during design development.

•  Provide a design that is flexible and easy to use and operate.

•  Provide a design with low mainte­nance concepts that is easy to maintain.

•  Provide a design package that is easy to understand, ready to bid, and, on a relative basis, easy to construct.

•  Maintain the operability of the CBWTP during the construction of the project.

•  Receive the positive endorsement of internal and external stakeholders.

•  Comply with all regulatory requirements and procedures.

•  Effectively coordinate with all related projects and plant operations.

VI.  Scope of Work

The Dry Weather primary clarifier expansion design work will be carried out using a phased design delivery approach to assure a coordinated and efficient completion of the work. At critical design milestones, design review workshops will be conducted with BES personnel and

key individuals from the CH2M HILL project team. The task level of effort is based on considerable use of the design calculations, drawings, and specifications prepared by CH2M HILL for the previous Dry Weather Primary Clarifier facility.

Task 1: Predesign Services

The predesign task will develop and evaluate alternative design concepts, then develop the preferred options to approximately a 30 percent design completion. The primary deliverable from this task is a Predesign Report that includes design criteria, technical memorandum, preliminary drawings, and a construction cost estimate. CH2M HILL will conduct several meetings with the BES project team to present design concepts and gain feedback from the BES project team. Information to be discussed will include operational concerns with the existing facility, such as the air handling system in the building, scum trough flushing, and sludge pumping. For the new clarifier, discussion items include the method of covering the basins, monitoring sludge blanket, and cleaning the clarifier.

Task 1.1—Formal Meetings/Workshops

CH2M HILL will conduct five formal meetings with BES staff (Staff Advisory Committee) plus site visits to local (Portland Metro) facilities:

•  Kick-off and Chartering Meeting – discussion of general project approach, design criteria, goals and objectives, schedule and workshop approach

•  Operational Issues Workshops – identify operational issues and options for improvement, engaging O&M staff

•  Sludge Pumping and Scum Handling Issues

•  Basin Access and Flushing Issues

•  HVAC/Odor Control Issues

•  Site visits to other facilities

Task 1.1 Assumptions:

1.  The Value Engineering meeting is included in a later subtask.

2.  Key staff for each meeting are indicated in the budget

3.  Assume three separate Operational Issues Workshops as noted above

4.  Assume 3 local trips (no overnight stay required) to other facilities, average 6 hours each trip, within total budgeted hours indicated.

BES Involvement:

Participation in workshops and plant tours (Han, project engineering team, operations/maintenance staff)

Key CH2M HILL Team Members Involved:

Green, Fricke, Griffiths, Cowden, Rawie, Goetz (Kickoff Meeting only)

Deliverables:

•  Meeting agendas

•  Draft and final meeting notes

•  Notes and photos from site tours

Task 1.2—Develop Project Definition Memorandum

Following the kickoff meeting, CH2M HILL will prepare a brief technical memorandum summarizing key design criteria and standards that will be used for the design. BES’s approval of this Project Definition Memorandum is critical to define the project prior to moving into the early predesign activities.

BES Involvement:

Review and approval of Technical Memorandum (Han and Staff Advisory Committee)

Key CH2M HILL Team Members Involved:

Green, Fricke, Griffiths, Key Discipline Leads

Deliverables:

•  Draft Project Definition Memorandum

•  Final Project Definition Memorandum

Task 1.3 Technical Predesign Development

Design disciplines will perform evaluations and develop the 30 percent complete construction documents. Significant activities and the outline for the Predesign Technical Memoranda are:

•  Civil and Site Development – relocate access road; utility relocations; concrete slab removal; coordinate with City of Portland surveyors; erosion control plan.

•  Architectural – extension of existing building; code review of existing facilities for potential Building Code issues

•  Landscape Architectural – concept for perimeter landscaping and screening views

•  Structural – review prior design calculations for changes due to new Building Code requirements; primary clarifier covers.

•  Geotechnical – soil contamination investigation; review of previous geotechnical analysis and perform additional borings.

•  Process/Mechanical – options for primary sludge monitoring and pumping; scum removal; cleaning of basins; constructibility; size all major equipment. Evaluate chain and flight mechanisms – review materials and durability issues.

•  HVAC – options for improving air handling within building to reduce moisture and odors.

•  Instrumentation and Control – P&ID’s (Assume process and primary instrumentation shown; assume 2 or 3 P&ID's), Integration Plan with existing controls.

•  Electrical –electrical loads for new equipment; one-line diagram; electrical feeds to facility.

•  Construction Cost and Phasing with 30-percent Construction Cost Estimate

Task 1.3 Assumptions:

1.  Existing calculations and drawings will be reused wherever possible

2.  Assume exist survey data is available from City

3.  Assume any permitting efforts will be led by BES with support from design team.

4.  Assume no archeological or environmental review necessary, other than soil testing described below.

5.  Assume DWCL4 is expanded similarly to original design of DWCL1-3. Alternative designs for the scum system, pumping systems, etc., could alter the level of effort.

6.  Predesign Report itself is prepared under a later subtask.

7.  For the soil contamination subtask, assume:

•  16 geoprobe holes driven to a depth of 12 feet below ground surface for samples. Maximum depth is based on previous sampling (Note: Expenses for drilling contractor).

•  6 soil samples collected at various depths per hole for 96 samples plus duplicate samples up to a total of 105 samples.

•  Laboratory analysis will be performed by the City of Portland and costs not billed through CH2M HILL’s contract.

•  A report summarizing the sampling and analysis results will be prepared by CH2M HILL once the analytical laboratory results are received.

BES Involvement:

Ongoing communication with consultant design team (Han). Involvement in conference calls and problem solving with predesign team.

Key CH2M HILL Team Members Involved:

All discipline task leads

Deliverables:

•  Preliminary cost estimate based on 30 percent design

•  Agenda and meeting notes (draft and final) for 30 percent design review workshop

Task 1.4 Value Engineering (conducted with draft 30 percent document)

CH2M HILL will provide an in-house facilitator and a construction reviewer (Snyder) for a value engineering (VE) session on the 30 percent design. The VE facilitator (Mike Doleac) will have no involvement in the predesign activities leading into the VE workshop in order to bring a fresh perspective to the discussion. BES staff will be the primary participants. The CH2M HILL project manager will attend the first hour of the VE session to introduce the project to the VE team and outline specific areas of focus. Key members of the design team will attend the wrap-up discussion at the end of the VE session.

Task 1.4 Assumptions:

1.  VE workshop will be 8 hours

2.  VE workshop will be conducted with draft 30% documents

BES Involvement:

Attendance at workshop (Han, key BES technical staff)

Key CH2M HILL Team Members Involved:

Doleac, Snyder, Green

Deliverables:

•  Meeting agenda

•  Draft and final meeting notes (Doleac)

Task 1.5—Draft and Final Predesign Report

CH2M HILL will develop a draft Predesign Report that summarizes the alternatives and presents recommendations regarding design issues. The report will define key design parameters prior to the start of final design. It will include a series of individual technical memoranda, 30 percent design drawings, major equipment cut-sheets, a list of major specification sections, P&IDs, and a construction cost estimate. The construction cost estimate will separate the construction cost for work associated with DWCL No. 4 from retrofit work associated with work on existing DWCL No. 1-3. Technical memorandum will be developed for each of the disciplines/categories identified in Task 1.2 above.

Task 1.5 Assumptions:

Design costs for retrofit of DWCL No. 1-3 is included in the Predesign effort (above) but costs have not been included in the Design Services tasks (below).

BES Involvement:

Review of draft Predesign Report (Han, BES project team)

Review of cost estimate and determination of any design/retrofit work to be done on existing DWCL No. 1-3.

Key CH2M HILL Team Members Involved:

Green, Fricke, Griffiths, Design Task Leads

Deliverables:

•  Draft and final Predesign Report (10 hard copies)

•  Updated Construction Cost

•  Draft and final Geotechnical Report (3 hard copies)

•  Draft and final Soil Contamination Report (3 hard copies)

Task 2: Design Services

The consultant team will develop a discipline-coordinated set of contract documents. This task continues the activities completed during the predesign task. Ideally, decisions made at the end of predesign are “frozen.”

Subtask 2.1 – 60 percent Design

The design team will further develop construction drawings and specifications for review by the BES project team. The 60 percent design level construction drawings show the final location and size of major components and systems. The 60 percent specifications will include civil, structural, mechanical, electrical, and instrumentation sections. CH2M HILL senior review of all technical disciplines will occur prior to 60 percent submittal. CH2M HILL will conduct a one day review workshop with BES staff.

BES Involvement:

Ongoing communication (Han); review of 60 percent submittal and attend 60 percent Review Workshop (Han, technical project team)

Key CH2M HILL Team Members Involved:

Green, Griffiths, discipline task leads

Deliverables:

•  60 percent design drawings and specifications (10 hard copies)

•  Preliminary cost estimate based on 60 percent design

•  Agenda and meeting notes (draft and final) for 60 percent design review workshop

Subtask 2.2 – 90 Percent Design

The design team will further develop construction drawings and specifications to a 90% level and clearly define the construction requirements. Construction sequencing and constraints will be integrated. BES comments from the 60 percent design review will be addressed. Changes required after this submittal should be a result of permit reviews, BES project team comments, QA/QC input, and proofreading of the final documents. 90 percent specifications will include BES’s standard front end “Divisions 0 and 1” documents customized for the project jointly by BES and CH2M HILL. CH2M HILL master specifications will be used for the remainder of the bid documents (Divisions 2 to 17 for Construction Specifications Institute format). Senior review of all technical disciplines by CH2M HILL staff will occur prior to the 90 percent submittal. CH2M HILL will conduct a one-day review workshop with BES staff after completion of the 90 percent submittal.

BES Involvement:

Ongoing communication (Han); review of 90 percent submittal and attend 90 percent Review Workshop (Han, technical project team)

Key CH2M HILL Team Members Involved:

Green, Griffiths, Design Task leads

Deliverables:

•  90 percent design drawings and specifications (10 hard copies)

•  Updated cost estimate based on 90 percent design

•  Agenda and meeting notes (draft and final) for the 90 percent design review workshop

•  Meeting notes from meeting with City Building Department

Subtask 2.3 – Final Design

The CH2M HILL team will submit a final contract document package including construction drawings and detailed specifications, certified by appropriate professional engineers, ready to be sent out for building permits and construction bidding. In addition, a detailed engineer’s estimate of construction costs based on the 100 percent design will be prepared.

BES Involvement:
Receive final documents (Han)

Key Team Members Involved:

Green, Griffiths, Design Task leads

Deliverables:

•  100 percent Construction Drawings (full-size stamped originals, ½ sized stamped originals, and electronic ACAD files)

•  100 percent Construction Specifications including geotechnical report

•  Final detailed engineers estimate based on 100 percent design

•  Structural calculations and Geotechnical Report for building permit

•  Submittal package for DEQ approval

Subtask 2.4 Detailed I&C Design

In this task CH2M HILL will update the wiring and connection template drawings developed on the previous Dry Weather clarifier projects to meet new standards, and then develop detailed wiring diagrams, loop drawings, and panel drawings for the new DWCL No. 4.

BES Involvement:

Receive final documents (Han)

Key CH2M HILL Team Members Involved:

Green, Griffiths, I&CS design team

Deliverables:

•  100 percent I&C Loop and Discrete loop drawings ACAD files), conforming with current CBWTP control systems standards.

•  Updated Process Control Narratives (update existing narratives)

•  100 percent Panel drawings

•  100 percent Connection drawings

Subtask 2.5 Retrofit of Existing Clarifiers

In this task CH2M HILL will, at no expense, develop design details for the retrofit of the existing DWCL access openings, to allow ease of visual access, or retrofit of the existing covers with the approach developed as part of the design of the new fourth DWCL. In addition, CH2M HILL will develop design details associated with the narrowing or closing of the existing openings over the helical scum skimmers/troughs, to address HVAC and odor control issues.

Task 2.5 Assumptions:

Design details for DWCL No. 1-3 will be provided to BES. BES will determine if the work is to be included in the Contract Documents with the rest of the DWCL No. 4 construction. Cost of construction is not included in CH2M HILL’s scope for this item.

BES Involvement:

Receive final documents (Han)

BES to review and determine construction work to be done on existing DWCL No. 1-3.

Key CH2M HILL Team Members Involved:

Green, Griffiths, HVAC and Structural design staff

Deliverables:

100 percent construction details

Task 3: Bid Phase Services

CH2M HILL will provide technical assistance as needed to interpret the contract documents during the bidding phase. Two members of the team will attend a prebid conference. CH2M HILLwill assist in preparing technical addenda to the contract documents (if needed) for BES to issue. The team will also respond to any questions raised by DEQ or the building department.

BES Involvement:

Lead the bid phase process (Han and BES construction management staff)

Key CH2M HILL Team Members Involved:

Green, Griffiths

Deliverables:

Technical addenda to the contract documents (if needed).

Task 4: Services During Construction

These services during construction (SDC) are intended to assist BES staff in administering the construction contract. The consultant team will provide technical support for the review of such items as submittals, requests for information, and change orders. Periodic site visits are also included in this task, including final start up and punch list inspections.

Task 4.1—Construction Observation

CH2M HILL will provide periodic site visits and inspections as requested by BES. In addition, design team staff will participate on final inspections and developing punch lists.

Task 4.1 Assumptions:

For level of effort purposes, one consultant team member will perform up to sixteen 6-hour site visits for periodic site visits and final inspections.

Key Team Members Involved:

Green, Griffiths, discipline task leads

BES Involvement:

Construction oversight (Han and BES CM staff)

Deliverables:

•  Site visit daily diary

•  Final inspection punch lists

Task 4.2—Construction Meetings

CH2M HILL staff will participate in the preconstruction conference led by BES staff. This task also includes a limited level of effort to attend construction meetings as requested by BES.

Task 4.2 Assumptions:

•  Attend and participate in one preconstruction meeting.

•  For level of effort purposes, one consultant team member will attend approximately 12 2-hour construction meetings. Assume I&C team members will attend one startup planning meeting.

Key CH2M HILL Team Members Involved:

Green, Griffiths, technical design leads

BES Involvement:

Construction oversight (Han and BES CM staff). Management of engineering support.

Task 4.3—Submittal Review/RFIs/Construction Changes

The design team will provide design support services in the review of Contract submittals as requested by BES. These submittals include shop drawings, samples, request for information (RFIs), proposed substitutions, and construction changes.

Task 4.3 Assumptions:

Level of effort for CH2M HILL (after BES screening) is assumed at:

•  60 submittals reviewed at 3-hours each (average) for a total of 120 hours

•  100 RFIs at 1 hour (average) each for a total of 100 hours

•  40-hour allowance, including CAD for construction changes

BES Involvement:

Construction oversight (Han and BES CM staff)

Screening of RFI’s, Submittals, and Change Orders

Key CH2M HILL Team Members Involved:

Griffiths, Fricke, technical design staff

Deliverables:

•  Marked up copies of contractor submittals

•  Written responses to all requests for information

•  Revised drawings and specifications to support Contract change orders

Task 4.4 – I& C Assistance

CH2M HILL will lead the development team, utilizing support from the BES I&C team in the Configuration Off-line Database (COD) tasks to support application software development. The approach to this task will be similar to the development of the original COD/software work for DWCL No. 1-3.

Task 4.4 Assumptions:

•  CH2M HILL will have the lead on COD tasks with technical assistance/oversight by the BES I&C team

•  Assume detailed software development by BES staff

•  Assume numbering scheme will follow patterns previously set

BES Involvement:
Support role in I&C development (Han, I&C Team - Mark Mattson, Loren Stover, Rick Komraus.

Assume PLC programming by Loren Stover.

Assume iFIX programming by Mark Mattson.

Assume BES does O&M training for PLC’s.

Key Team Members Involved:

Rawie, Black, I&C team members

Deliverables:

Software updates, screen updates, software testing, updates to existing training manual, and final fixup of loop sheets and P&ID’s.

Task 4.5 - Startup and Testing Services

Design team staff will support and witness field performance tests as requested by BES as well as participating in start-up to verify that modifications and design innovations are functioning as intended.

Task 4.5 Assumptions:

Level of effort is assumed at 64 hours for this task. Includes limited I&C services for ORT1 support. Assumes BES will provide staff to primarily witness/support ORT1 testing.

BES Involvement:

Lead role in operational start-up (Han, plant operations staff). Witness ORT1 testing by Contractor.

Key CH2M HILL Team Members Involved:

Re, Fricke, Cowden

Deliverables:

Technical memorandum summarizing the results of the start-up testing.

Task 4.6 – O&M Manual

CH2M HILL will assist BES with the update to the existing O&M Manual for the new clarifier.

Task 4.6 Assumptions:

Level of effort is assumed at 60 hours for this task

Assume that existing O&M Manual is satisfactory and this effort updates that existing manual.

BES Involvement:

Lead role in operational start-up (Han, plant operations staff)

Key CH2M HILL Team Members Involved:

Re, Fricke, Leads

Deliverables:

Draft and final O&M manual for BES review and comment

Task 5: Project ManagementContract Administration

CH2M HILL’s Project Manager, is responsible for coordinating CH2M HILL’s project team and controlling project resources and the overall budget. He will prepare and update project schedules, monitor project performance related to schedule, control expenses/budget, quality control, and provide regular reports to the BES Project Manager. CH2M HILL’s project manager will also provide support addressing neighborhood concerns about the DWCL project. CH2M HILL is also available to support BES staff in limited activities related to the CAC and North Portland Odor Abatement Committee.

Task 5.1 – Project Management Plan

The purpose of this task is to prepare the detailed Project Management Plan that will be used during this project work. Specific elements of the plan will include:

• Project Instructions

• CAD/CAE Standards

• Quality Management Plan

• Project Health and Safety Plan

Task 5.2— Meetings

Project managers from CH2M HILL and BES will meet on a monthly basis to review the status of the project. In preparation for these sessions, CH2M HILL will develop progress reports that provide a clear summary of the budget consumption (percent spent) as compared to percent complete, define the progress made during the reporting period, indicate the work that is planned during the next reporting period, and identify any problems impacting the planned performance of the work.

Task 5.2 Assumptions:

Project will begin in January 2006 and end in June 2009.

Assume 12 meetings for design and 12 meetings for bidding/SDC.

Assume 36 months of invoicing and progress reporting. Assume some invoices cover two month periods.

Assume 8 hours for support of BES community outreach.

Task 5.3—Ongoing Project Management

This subtask includes the ongoing project management activities for the project, including design management. Typical activities include the coordination of CH2M HILL’s project team, project resources, the overall budget, and quality management.

BES Involvement:

Han, BES Construction Manager

Task 5 Key Team Members Involved:

Green, Griffiths, Goetz (QA/QC Plan)

Deliverables:

•  Project instructions including definition of project team, roles and responsibilities (10 paper copies)

•  Identify specific work assignments including estimated level of effort and critical path schedule

•  Drafting standards (3 paper copies)

•  Quality plan (10 paper copies)

•  Change management plan (10 paper copies)

•  Health and safety plan

•  Closeout plan

•  Monthly invoices including status report for 36 months of reporting (2 paper copies)

VII.  Payment Schedule

The City shall pay Contractor for work performed under this Agreement after the effective date as set out below. The payment shall be full compensation for work performed, for services rendered, and for all labor, materials, supplies, equipment, and incidentals necessary to perform the work and services. Compensation for each authorized project task shall be based on time materials with a cost not to exceed the total authorized amount without the approval of the City. Where Contractor has provided City with a breakdown of the total compensation into subtasks, such breakdowns are estimates only. With the written approval of the BES Project Manager, Contractor may reallocate compensation between tasks and subtasks, provided the total authorized amount is not exceeded.

The compensation shall be as follows:

Contractor’s hourly rates for all Tasks shall be based on a multiplier of 3.10 times direct labor, and shall be full compensation (exclusive of reimbursable direct expenses) for the work performed, including all overhead costs, routine expenses, and profit. Routine expenses include, but are not limited to, miscellaneous copying, computer time, telephones, travel within the Portland metropolitan area (100-mile radius), parking, photographs, and postage. Subconsultant compensation (labor plus reimbursable direct expenses) will be billed at cost plus 5 percent.

Non-routine, reimbursable direct expenses include copying of draft and final documents in excess of the number specified, copying of contract (bid) documents, courier services, and travel and per diem for travel to the Portland metropolitan area. Non-routine direct expenses shall be billed at cost with no mark-up.

Billing and Payment Procedure

The Contractor’s billing and City’s payment procedures shall be as described below:

Interim Payments

On or before the 20^th of each month, the Contractor shall submit to the City’s Project Manager an invoice for work performed by the Contractor during the previous month. The invoice shall set out all items for payment, including the name of the individual, hours worked during the period, tasks performed within the period, and total amount claimed. Within 30 days after receipt of the bill, provided the Project Manager has certified the payment as due, the City shall pay the amount certified to the Contractor. The Project Manager’s certification of a payment as due, however, shall not prevent the Project Manager from later determining that the certification was in error.

Payment to the Contractor is due upon receipt of invoice by the Owner. If payment is not made within 30 days, interest on the unpaid balance will accrue beginning with the 31^st day at the rate of 1.5% per month or the maximum interest rate permitted by law, whichever is lesser. Such interest will become due and payable at the time said overdue payment is made.

In the event that the City questions some elements of an invoice, that fact should be made known to the Contractor within 48 hours of receipt of invoice. Contractor will help effect resolution and transmit a revised invoice as necessary. Amount not questioned by the City shall be paid promptly to Contractor in accordance with the above payment procedures.

Invoice Forms

The following forms shall be submitted with Contractor’s invoice:

1.  PTE Monthly Subcontracting Utilization Report

2.  Invoice Supplement for Task Based Level of Effort Contracts