TWENTY-FIFTH AMENDMENT TO MASTER CONTRACT
FOR PROFESSIONAL SERVICES
FOR WASTEWATER TREATMENT PLANT ENGINEERING SERVICES
CLEAN WATER SERVICES AND MURRAY, SMITH & ASSOCIATES, INC.
This Amendment, dated effective May 30, 2017, is between Clean Water Services (District) and
Murray, Smith & Associates, Inc. (Consultant) and amends the parties’ Master Contract for
Professional Services for Wastewater Treatment Plant Engineering Services, dated effective
January 8, 2013, as amended by the Ninth Amendment dated effective February 1, 2015 and the
Thirteenth Amendment, dated effective January 8, 2016 (collectively, Contract).
RECITALS
1.
District and Consultant previously entered into the Master Contract.
2.
The parties now wish to amend the Master Contract to have Consultant provide
professional engineering services for the preliminary and final design phases of the River
Terrace South Pump Station Project No. 6827 and Roy Rogers Gravity Project No. 6883
(collectively, Project).
TERMS AND CONDITIONS
1.
Scope of Work
Consultant shall perform the services described in Exhibit A, attached hereto and
incorporated herein.
2.
Compensation
District shall pay Consultant as set forth in the Contract. District’s total payment to
Consultant, including expense reimbursement, shall not exceed $998,400.
3.
Schedule
Consultant shall complete the work in accordance with the schedule contained in
Exhibit A.
4.
Duration
The Contract will be effective from the date written on page one and shall expire
December 31, 2018 unless terminated earlier pursuant to Paragraph 14 of the Master
Contract.
17-198
Twenty-Fifth Amendment to Master Contract
Page 1
5.
Effect of Amendment
Except as amended herein, the Contract shall remain in full force and effect.
MURRAY, SMITH & ASSOCIATES, INC.
CLEAN WATER SERVICES
By: ________________________________
By: ____________________________
Troy L. Bowers, President
General Manager or Designee
APPROVED AS TO FORM
________________________
District Counsel
17-198
Twenty-Fifth Amendment to Master Contract
Page 2
EXHIBIT A
SCOPE OF WORK
RIVER TERRACE SOUTH PUMP STATION PROJECT NO. 6287
AND ROY ROGERS GRAVITY PROJECT NO. 6883
PRELIMINARY AND FINAL DESIGN PHASES
FOR
CLEAN WATER SERVICES
I.
Project Overview and Understandings
Based on Consultant’s meetings and discussions with District’s Treatment Plant Services
staff, the basic understanding of the requirements for the Project is summarized as follows:
1. In 2010, Washington County completed the West Bull Mountain Concept Plan. The City
of Tigard subsequently built upon this plan by preparing the River Terrace Community
Plan. This plan covers areas within the Tigard Urban Growth Boundary (UGB) and
Urban Reserves on the west side of Bull Mountain, south of SW Scholls Ferry Road.
2. In 2013, District retained Consultant to complete the Siting Study for the River Terrace
Pump Stations and Force Mains. This Siting Study combined the information gathered in
the community planning efforts with prior District, Tigard and Beaverton studies, as well
as planning guidance documents, design standards, operation and maintenance reports,
inspection records, pump station data, flow monitoring data, record drawings, GIS
mapping, land use and other pertinent information to develop pump station and force
main conceptual alternatives to serve these areas in the near term and at saturation
development.
3. The Siting study identified potential temporary and permanent locations for the River
Terrace South Pump Station. District’s desire was to investigate and proceed with
constructing the River Terrace South Pump Station at the permanent location, rather than
constructing at the temporary location, if permitting and property acquisition can be
obtained for the permanent site.
4. District has completed an alternatives study that has identified the preferred locations and
capacities for the pump station, gravity trunk sewer and force main. District is in the
process of updating the District’s collection system master plan incorporating the results
of the alternatives study.
5. The proposed permanent location of the River Terrace South Pump Station lies within the
King City Urban Reserve. The proposed location of the gravity trunk sewer and force
main lie within the Tigard and King City Urban Reserves. The properties are currently
regulated by Washington County and carry an Exclusive Farm Use (EFU) zoning
designation. A Type II conditional use process has been preliminarily identified to obtain
Twenty-Fifth Amendment, Exhibit A - Page 1 of 22
land use permitting for the pump station, gravity trunk sewer and force main.
6. Consultant has prepared a conceptual plan for the pump station, gravity trunk sewer and
force main; and is currently assisting the District with acquisition of the pump station site.
District now desires that Consultant proceed with preliminary and final design services
and assist the District in obtaining the permits described in this scope of work.
II.
Approach
The scope of work that follows and associated engineering fee estimate are based on the
following approach to designing the River Terrace South Pump Station and Force Main, the
Roy Rogers Gravity Trunk Sewer, and the River Terrace North Force Main Relocation:
 Site - The District will acquire a pump station site along the west boundary of the King
City Urban Reserve at Roy Rogers Road, south of the intersection with Beef Bend Road.
 Pump Sizing - The pumps will be sized to provide the recommended capacity for the
pump station service basin, based on the preferred option in the District’s alternatives
study and Master Plan update. The pump capacity for this phase of the work will be
approximately 3.7 million gallons per day (2,570 gpm).
 Pumping System Setup - The pump station will be a submersible-style sewage pump
station, including:
- A precast concrete wet well, sized for the anticipated inflow and to accommodate
three submersible pumps. Recommendations will be made for locating the wet well
on the pump station site, and the top of the wet well will be placed above the 100-year
flood plain in accordance with the District’s standards.
- Three variable speed submersible pumps, installed in the wet well. Pumps, guide
rails, base elbows, lifting chains, and other related equipment will be specified as a
system, with the expectation that the system will be provided through a single pump
supplier.
- Check valves, isolation valves and flow meter for the pumps located in a dry well.
Electric service, automatic transfer switch, variable frequency drives and control
panel housed in a control building constructed above the dry well.
 Site Improvements - The area around the wet well, control panel, vaults and generator
will be landscaped to District standards. The new pump station site boundary will be
fenced in accordance with District standards. A driveway will be installed to meet
County and District requirements.
 Power and Telephone - Power service provided to the pump station will be 480-volts,
three phase. Cellular telephone service will be provided for mission control connection.
Twenty-Fifth Amendment, Exhibit A - Page 2 of 22
 Backup Power - A permanent source of backup power will be provided. A diesel-fueled
standby generator capable of fully operating this pump station will be installed. The
generator will be outfitted with a noise attenuating enclosure and operated with an
automatic transfer switch. The generator will not be PGE dispatchable power.
 On-Site Piping - On-site gravity sewer piping connected to the pump station will be
extended to the property line. On-site force main will include a bypass/pigging
connection and will be extended to the property line.
 Off-Site Piping - Portions of off-site piping located within Roy Rogers Road and within
the Tigard UGB will be included in Washington County’s roadway improvement
contract. The remaining portions will be included in the District’s River Terrace South
Pump Station construction contract. Off-site piping will include the following:
- The gravity trunk sewer will be located within Roy Rogers Road starting from the
pump station site extending north approximately 4700 feet and terminating north of
the Tigard UGB.
- The River Terrace South Force Main will be located within Roy Rogers Road and
Beef Bend Road, extending from the pump station site to the existing Bull Mountain
Trunk at Myrtle Avenue, a total of approximately 9,500 feet.
- The Bull Mountain Trunk gravity sewer upsizing within Beef Bend Road will be
designed and constructed by the District under a separate contract, from the end of the
force main at Myrtle Avenue approximately 100 feet east of Peachtree Drive,
approximately 1,500 feet. Surveying for this improvement will be provided under this
Contract.
- The existing River Terrace North Force Main will be relocated within the River
Terrace Northwest development and within Roy Rogers Road, extending from the
existing River Terrace North Pump Station to the beginning of the gravity trunk sewer
in Roy Rogers Road (the Tigard UGB), a total of approximately 6,000 feet. The River
Terrace North Force Main may also be extended to Beef Bend Road parallel to the
gravity trunk sewer. The extent of this work will be determined in preliminary
design. A corridor will also be identified in Beef Bend Road for future extension of
the River Terrace North Force Main to the Bull Mountain Trunk gravity sewer as the
Tigard and King City Urban Reserves are brought into the UGB and City Limits. The
portion located within Roy Rogers Road and within the Tigard UGB will be
constructed by Washington County.
 Coordination with Washington County Improvements - Washington County Department
of Transportation (County) is designing improvements of Roy Rogers Road from Scholls
Ferry Road to the Tigard UGB, approximately 2,600 feet south of Bull Mountain Road.
The improvements will be constructed in 2018/2019. District will enter into an
intergovernmental agreement (IGA) with the County to have the County administer
Twenty-Fifth Amendment, Exhibit A - Page 3 of 22
portions of the River Terrace North Force Main construction as part of the Roy Rogers
Road Improvement Project. Under the IGA, the District will provide the force main
design for incorporation in the County’s bid documents.
- Consultant will coordinate the location and design of the River Terrace North force
main incorporated into the Roy Rogers Road Improvement Project administered by
the County. The design of District facilities that will be incorporated into the
County’s project include the following elements:
 River Terrace North Force Main from its entrance into the Roy Rogers right-ofway to the beginning of the Roy Rogers gravity trunk sewer near the Tigard UGB,
approximately 5,000 feet.
 New air release valve stations at force main high points in Roy Rogers Road.
- Consultant will design the Roy Rogers gravity trunk sewer to be incorporated into the
Districts River Terrace South Pump Station construction contract.
 Permits/Approvals - the following permits are required.
- Preliminary Design Phase:
 Washington County Conditional Use Permit.
 Clean Water Services Service Provider Letter.
- Final Design Phase:
 Right-of-way/utility/access permits from County and Tigard.
 Grading, building and trade permits from Washington County Development
Services Division.
 Stormwater development reviews and erosion control permits through Washington
County, District and the Oregon Department of Environmental Quality (DEQ).
III.
Scope of Work
Consultant shall perform the following tasks:
Task 1 - Project Management
This task is for general coordination of the Project and includes coordinating the Consultant
team with the District’s Project Manager, meetings, correspondence and communication.
Consultant shall perform the following subtasks:
1.1
Correspondence and Coordination with District - Establish protocol for coordinating
all communication with the District’s primary contacts. Implement these procedures
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to ensure all key team members are actively involved and informed in Project
decisions and direction. Specific elements for communication include:
A. Follow-up all decision-making and phone conversations with an immediate recap
via email.
B. Submit minutes of all meetings within one week.
C. Copy all key team members on correspondence, emails, meeting minutes, etc.
1.2
Staff and Subconsultant Management - Consultant’s Project Manager shall manage
subconsultants to ensure compliance with the Project schedule and budget as well as
scheduled deliverables. This management effort will involve:
A. Prepare and submit monthly activity reports showing current Project status and
identifying key issues or elements of the Project that will need to be addressed in
the proceeding weeks.
B. Prepare and submit monthly billing statements that clearly document the names,
rates and tasks for each Consultant team member who provided services for that
period.
1.3
Project Schedule - Consultant shall develop a detailed Project schedule, review the
schedule with the District, and manage all work in accordance with the District approved
schedule. Consultant shall update the Project schedule periodically as required and obtain
District approval for any required changes.
1.4
Progress and Review Meetings – Schedule and attend up to six general Project
meetings (two hours each with one hour of travel time) with District staff and key
team members at Project milestones, including Project kick-off, existing information
review and design criteria development review, any alternatives review, conclusions
and recommendations review (preliminary design report review), 50% final design
review, and 90% final design review. Project meetings shall include:
A. Consultant’s Project Manager shall develop and distribute a detailed meeting
agenda three days before each scheduled meeting, outlining key Project issues and
decisions to be discussed.
B. The meeting shall be administered by the Consultant’s Project Manager to ensure
all issues are discussed in a timely and efficient manner.
C. Meeting minutes shall be distributed to all key team members within one week.
Minutes shall clearly define all issues and decisions discussed during the meeting.
Twenty-Fifth Amendment, Exhibit A - Page 5 of 22
1.5
Quality Assurance/Quality Control (QA/QC) - Provide in-house reviews and check
various interim and final work products.
Task 2 - Information Gathering and Design Surveys
Consultant shall collect information and data to accomplish the preliminary design under the
following subtasks:
2.1
Preliminary General Corridor Review and Map Studies - Conduct a general review of
the Project corridor, incorporating District input and other relevant information which
may have bearing on the Project. Obtain and conduct preliminary map studies of the
Project corridor noting all items of potential interest relative to prospective pipeline
alignment. The review and study will include the following available mapping
sources: Washington County and Clean Water Services GIS aerial photography base
mapping, National Wetlands Inventory Mapping, Washington County ROW Maps,
Local Land Use and Zoning Maps, Tax Assessors Maps, and Utility Maps (electrical
power, natural gas, telephone, fiber optics, cable TV, sewer, irrigation, municipal
water).
2.2
Preliminary Field Reconnaissance - Conduct preliminary field reconnaissance,
incorporating District input and other relevant information which may have a bearing
on the Project.
2.3
Utility and Roadway Agency Consultations - Consultant shall review the utilities to
determine possible impacts with the proposed improvements. A base map will be
provided to all utility companies in the Roy Rogers Road Project area within the
proposed sanitary sewer alignments located between the River Terrace North
connection and the pump station site south of Beef Bend Road.
Consultant shall coordinate with each utility on a regular basis throughout the design
phase of the Project. A contact log will be utilized to document phone conversations
and emails with the utility companies.
Consultant shall prepare utility drawings for use in utility coordination. The drawings
will not be used for any other purpose.
Consultant shall coordinate with District, County and affected utilities to determine
where any necessary potholing may be required. Consultant shall survey all reference
points placed by potholing contractor(s). Where it is necessary to establish accurate
vertical and horizontal coordinates of underground utility facilities, Consultant shall
perform test hole surveys. Pothole locations will be selected based on risk of conflict.
Consultant will complete up to five individual utility potholes on an as-needed basis
to determine existing utility locations. The potholes shall be vacuum excavated and
Twenty-Fifth Amendment, Exhibit A - Page 6 of 22
abandoned and backfilled per Oregon Department of Water Resources and
Washington County regulations.
2.4
Design Surveys - Perform a field survey of the pump station site, gravity sewer route
on Roy Rogers Road not completed by Washington County for the roadway
improvement project (approximately 600 feet), and force main/gravity sewer route
along Beef Bend Road (approximately 9,000 feet, Right-of-Way to Right-of-Way) to
determine existing grades, locations of design control points, and locations and
elevations of existing features that affect the designs. Services include:
A. Call for underground utility locates.
B. Research, locate and measure sufficient survey monumentation to resolve the
right-of-ways of Roy Rogers Road and Beef Bend Road along the pipeline routes.
Includes establishing survey control and field locating existing property/right-ofway monuments within the limits of survey, reviewing existing right-of-way
records (i.e. surveys, plats, deeds and right-of-maps), determining right-of-way
location from the above information. Mapping shall be orientated to the Oregon
State Plane NADA 83 coordinate system and tied to the Washington County
record Datum (National Geodetic Vertical Datum 1929).
C. Topographic survey work shall include a field survey of all existing above ground
features (i.e. edge of pavement, ditches, gravel, mailboxes, signs, driveways,
fence, curbs, sidewalks, buildings, trees, utilities, wetland and waters delineation
flagging, etc.) as well as elevations with one-foot contour intervals. The below
ground utilities will be located from one-call locate paint marks and existing asbuilt maps. An existing conditions base map will be prepared using the above data
to be included with the final plan set.
D. Conveyance System Structures shall be located by center of manhole structure (not
cover) and measure and record inside diameter. Outfall location and invert
elevations shall be identified. Other conveyance structures shall be identified
dimensionally. Pipe connections to manholes and/or structures shall be identified
by diameter, material (if determinable), flow direction (in and out) including
compass direction, and invert elevations. Special attention shall be paid to
determine the presence of inside and/or outside drop connections, flow diversion
structures, weirs or other features relevant to engineering design.
All elevations relating to structures including manhole and catchbasin rims, invert
elevations, and pavement shall be measured and recorded accurately in hundredths
of one foot. Pipe invert elevations at manholes shall be projected to the center of
the structure and measured accurately to allow for accurate fabrication of precast
manhole bases used in retro-fit applications. Diameters of pipe penetrations shall
be accurately measured and recorded.
Twenty-Fifth Amendment, Exhibit A - Page 7 of 22
Where manhole and/or other structure rim elevations are representative of adjacent
ground surface, additional ground shots adjacent to the structure shall be recorded.
Determine the location and pipe invert elevations at the next contiguous structure
of the sanitary or storm system outside the immediate Project Area if connected to
a structure within the Project Area.
2.5
Preliminary Geotechnical Evaluation – Consultant shall review available geologic
and geotechnical information for the pump station site and sewer alignment. A
geotechnical engineer and certified engineering geologist will examine the pump
station site and gravity sewer/force main alignments to evaluate existing conditions
and geologic hazards that may affect design and construction of the proposed project.
A preliminary geotechnical evaluation memorandum will be prepared that discusses
the work completed and the results of our study. The memorandum will provide
information on the anticipated subsurface conditions at the pump station site and
along the gravity sewer/force main alignments, potential geologic hazards (if present),
and preliminary conclusions and considerations regarding design and construction of
the proposed Project. A draft memorandum will be provided for review and comment
prior to issuing a final memorandum. The memorandum will be provided in
electronic format.
2.6
Geotechnical Investigation - The geotechnical investigation shall include the
following items of work:
A. A field exploration program will be completed for the Project and will include the
following tasks:
1) Pump Station. Two borings will be drilled at the pump station site. One
boring will be drilled to a depth of 60 to 80 feet at the location of the wet well
to provide information for design and construction of the wet well and to
assign the appropriate seismic IBC/OSSC Site Class necessary for seismic
design. It is anticipated that one boring will be drilled at the location of the
valve vault to a depth of 30 to 40 feet, depending somewhat on the depth of the
vault and the subsurface conditions encountered.
A vibrating wire will be placed in the borehole to permit measurement of the
depth to groundwater. The piezometer cable will be protected at the ground
surface with a metal monument.
It is assumed the drilling work for the pump station will take 11/2 to 2 days to
complete.
2) Sewer Alignments. Borings will be made in SW Roy Rogers Road and SW
Beef Bend Road at approximate 800- to 1,000-feet increments to obtain
information for design and construction of the gravity and force main sewer
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lines. Based on the length of the alignments, it is anticipated that seven to
eight borings will be made on SW Roy Rogers Road and nine to ten borings on
SW Beef Bend Road, respectively. At this time, it is anticipated that on SW
Roy Rogers Road, the borings will be made on the northbound shoulder. On
SW Beef Bend Road, the borings will be made in the eastbound lane to avoid
the overhead powerlines along the westbound lane. The borings in SW Roy
Rogers Road will generally extend to depths of between 20 to 30 feet, with two
borings extending to depths of at least 25 to 30 feet where the sewer line will
pass under the planned new Willamette Water Supply waterline. Anticipated
depth of borings for the force main in SW Beef Bend Road will generally be
on the order of 10 feet, although two borings may extend to depths on the
order of 30 to 40 feet on either side of the creek crossing just east of SW 146th
Avenue if trenchless installation at this crossing is required. It is assumed the
drilling in the roadways will take six to seven days.
3) Drilling and Sampling. It is anticipated that the borings will be made with a
truck-mounted drill rig. The borings at the pump station will be made with
mud-rotary drilling methods. The borings made in the pavement may be made
with either mud-rotary or hollow-stem auger drilling techniques. Disturbed
split-spoon samples and undisturbed Shelby tube samples of soil will be
obtained from the borings at about 2.5-foot intervals of depth in the upper 15
feet and 5-foot intervals of depth below a depth of 15 feet. The Standard
Penetration Test will be conducted while the disturbed split-spoon samples are
being taken. Rock, if encountered, may be continuously cored, particularly if it
is within the depth of planned excavation. The pavement at each boring
location in the roadways will be cored with a 6- to 8-inch-diameter core barrel.
The drilling spoils from borings made at the pump station site will be left at the
drilling location. The drilling spoils from borings made in the roadways will
be placed in metal drums and removed from the site. Bore holes will be
backfilled with bentonite chips or grout. Where borings penetrate pavement,
the existing pavement section shall be restored.
All borings will be constructed, reported to Oregon Water Resources
Department (ORWD), and abandoned per the requirements of OAR 690-240,
including piezometers.
4) Access. The drilling for the pump station site will likely be completed during
the normally dry summer months when access to the pump station site can be
readily made with a rubber-tired truck drill rig either through the existing gate
along SW Roy Rogers Road or from the north through the nursery. If the
surface of the pump station site is soft and wet and/or if drilling will occur
during extended wet weather conditions, a tracked drill rig may be needed to
drill at the pump station site.
Twenty-Fifth Amendment, Exhibit A - Page 9 of 22
Access to the roadway borings will be straightforward. Traffic control will be
in place prior to entering the work zone as discussed below.
5) Traffic Control. At this time, it is assumed that the borings made on SW Roy
Rogers Road will be completed on shoulders requiring a shoulder closure.
Due to lack of sufficient shoulders, the borings made in SW Beef Bend Road
will be completed in the eastbound lane requiring a lane closure. Consultant
will provide all required traffic control for the work. An exploration work plan
will be prepared for review and approval by Washington County prior to the
commencement of field work in order to obtain the required permits to work in
the right-of-way. The exploration work plan memorandum for the planned
work will include a scope of work, traffic control plans, and a site health and
safety plan.
It is assumed that the shoulder and lane closures required for the drilling work
will be permitted by the County for daylight hours.
6) Utility Locates and Notifications. A request to the Utility Notification
Center will be made at least 48 hrs prior to the start of drilling. Appropriate
timely notifications will be made to the District, Washington County, and
others as required prior to the start of work. A private utility locator will also
be used to clear the borings.
B. Laboratory tests will be conducted to provide data on the important physical
characteristics of the subsoils, essential for engineering studies and analyses. The
laboratory tests will include standard classification tests, such as natural water
content, washed sieve analyses, and unit weight determinations, as well as strength
and consolidation testing. The latter will provide the quantitative data necessary
for the various foundation design studies. If suitable rock core samples are
obtained, up to eight rock core strength tests may be completed.
C. Conduct engineering studies and analyses that will enable Consultant to prepare
conclusions and recommendations concerning (1) earthwork, including cut and fill
slopes, wet-weather construction, and the suitability of on-site soils for use as
structural fill; (2) pump station construction criteria; (3) design criteria for
embedded walls, foundation types, allowable bearing pressures, friction factors,
design water level, and methods for resisting uplift on the pump station; (4)
estimated settlement; (5) seismic design criteria, including a Site Class in
accordance with the current International Building Code (IBC); (6) slope stability
considerations; (7) subdrainage requirements; (8) design criteria for temporary
excavation, shoring, and dewatering considerations; (9) rock excavation
considerations; (10) design and construction criteria for HDD installation at the
creek crossing east of SW 146th Avenue (if required), including estimated
physical soil strength properties; and (11) trench excavation and subgrade
preparation and stabilization recommendations.
Twenty-Fifth Amendment, Exhibit A - Page 10 of 22
D. Prepare a report that discusses the work accomplished and presents the results of
the various tests and office studies. A draft report will be provided for review and
comment. Consultant will address District’s comments prior to issuing a final
report. The reports will be provided in electronic format.
2.7
Wetland and Waters Delineation and Report - Consultant shall conduct a wetland and
waters delineation in accordance with the methods of the 1987 U.S. Army Corps of
Engineers (Corps) Wetlands Delineation Manual and the Supplement to the Corps of
Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast
Region (Version 2.0), used by the Oregon Department of State Lands (DSL) and the
Corps. Record hydrology, soils, and vegetation on wetland determination data forms
to document site conditions. Sample plot locations and wetland and water boundaries
will be flagged in the field for surveying under Task 2.4. A sketch map of plot
locations and wetland flagging will be prepared on a recent aerial photograph to assist
the surveyor. The study area includes Roy Rogers and Beef Bend Road right-of-ways
in the vicinity of the proposed gravity sewer and force main alignments. Consultant
shall prepare a summary report of the wetland and waters delineation to meet the
requirements of the DSL wetland delineation report rules (OAR 141-090-0035). The
report will include a survey map of the wetland and waters boundaries to be prepared
under Task 2.4. District will pay the 2017 DSL wetland report review fee of $419.
2.8
Natural Resource Assessment and Report - Consultant shall assess the condition of the
vegetated corridor adjacent to wetland and water resources in accordance with the
District’s Design and Construction Standards Resolution and Order 07-20, effective
June 1, 2007, amended August 2008. Plant communities will be documented and
percent tree canopy, percent cover by native species, and percent cover by invasive
and/or noxious species will be recorded at representative vegetated corridor plot
locations. Plot locations will be flagged in the field for surveying under Task 2.4. A
summary report will be prepared to meet the District’s vegetated corridor and natural
resource assessment report requirements. The report will include a discussion of the
existing condition of the vegetated corridor (good, marginal, or degraded), the
location of any temporary or permanent impacts to the vegetated corridor, and any
required restoration, mitigation, or enhancement. This task includes preparing a table
of planting specifications to restore any temporarily impacted vegetated corridor areas
and to provide any required enhancement or mitigation to meet District requirements.
Maps for inclusion in the wetland delineation and natural resource assessment reports
shall depict surveyed wetland boundaries, wetland determination and vegetated
corridor sample plot locations, and associated vegetated corridor locations.
2.9
Soil Resistivity Investigation - Consultant shall perform a soil resistivity survey along
the force main alignment and provide a design report that covers the resistivity results
and the corrosion control requirements for the pipe and appurtenance materials that
will be considered in design.
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2.10
Right of Way Descriptions, Exhibits and Right of Way Staking - Consultant shall
prepare up to two descriptions and exhibit maps for all right-of-way and easement
acquisitions required to construct the pipeline improvements, including permanent
drainage, water quality, slope, and temporary construction easements. Services
include:
 Prepare exhibits including legal descriptions for all right-of-way and easement
acquisitions required to construct the pipeline improvements.
 Prepare and update a spreadsheet to track the legal description submittals and
revisions and provide to the District.
 Develop right-of-way base map showing existing and proposed right-of-way line
and permanent and temporary easement lines. Scale of the map will be 1" = 40'.
Show map and tax lot number, site address number, owner, and file number for
each parcel.
 Consultant shall stake proposed and existing right-of-way and easements (one time
only) for appraisal and acquisition process as requested by the District within two
weeks of authorization to proceed from the District.
Task 3 - Preliminary Design
Consultant shall perform the following subtasks to develop and finalize key project concepts,
design criteria and project requirements for use in accomplishing the design and permitting:
3.1
Pump Station Layout - Develop pump station layout and meet with District to discuss
options and select desired arrangement. Coordinate with District regarding depth of
wet well to accommodate the Roy Rogers Trunk Sewer and future trunk sewers that
will be designed by others. Determine optimum use of the site with respect to:
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3.2
Pump station and support equipment location.
Vehicle access and maneuvering for operation and maintenance activities.
Site ingress and egress.
Site aesthetics and buffers.
Natural hazards.
Protection of natural resources, i.e. wetlands and wildlife.
Noise and odor control.
Hydraulic and Mechanical Evaluations – Conduct evaluations for the proposed
hydraulic and mechanical conditions. This work effort will include evaluation of
current, 10-year, 20-year and buildout flow conditions. The evaluations will include:
 Pump system performance curves for current, 10-year, 20-year and build out
conditions and considering existing force main and new force main conditions.
Twenty-Fifth Amendment, Exhibit A - Page 12 of 22
 Pump station configuration (wetwell, drywell, etc.) to best suit the District’s
current and future needs.
 Preliminary pump selection (type, capacity, head conditions, number of pumps,
pump efficiency, etc.) considering the performance requirements, present and
future flow conditions, and station configuration.
 Gravity sewer and force main sizing. Air and vacuum release valve station
locations.
 Surge analysis to predict impact of pump station operation during starting and
stopping of pumps and during power failure and surge control measures.
3.3
Electrical and Instrumentation and Control Considerations – Conduct an evaluation
of electrical and instrumentation and controls needs to determine:
 Power service requirements to site. Coordinate with the power company on power
availability and scheduling of power service to the site. Determine the scope of
services and cost by the power company for power service.
 Standby power requirements, including size and type of generator for standby
operations.
 System instrumentation, controls and alarm requirements, compatible with
District’s current design standards and equipment.
 Station control strategies.
 Station communication requirements, defining equipment and parameters, per
District standards.
3.4
Structural and Architectural Considerations – Conduct preliminary designs for the
proposed pump station structure and architectural features, including:
 Proposed reinforced concrete structure foundation type and design.
 Pump station structure conceptual floor plans.
 Architectural designs including above-grade structure type, exterior wall and roof
styles and colors.
3.5
Odor Control – Conduct an evaluation of odor controls needs. This evaluation will
include potential odor generation at the site as well as the force main discharge
location. The evaluation will be used to determine:
 Type and quantity of odors generated at the site and force main discharge.
 Odor control strategies appropriate for the station and force main configuration.
 Requirements, including size and type of odor control equipment, and
compatibility with District’s current design standards and equipment.
3.6
Noise Abatement - Evaluate the need for noise abatement to reduce mechanical noise
generated at the pump station site. This will include considerations for noise
Twenty-Fifth Amendment, Exhibit A - Page 13 of 22
generated by day to day operation of the pump station and the standby power systems.
The evaluation will include:
 Estimating the type and level of noise generated at the site by equipment taking
into account the pump station configuration.
 Defining requirements for noise levels based on the location of the pump station
site and maintaining a safe working environment and complying with applicable
ordinances and laws that regulate noise limits.
 Strategies for reducing noise at the pump station site based on the station
configuration and location and equipment selection/specifications.
3.7
Gravity Sewers and Force Main – Conduct preliminary designs for the new gravity
sewers and force main. The proposed gravity sewer and force main routing work
includes analysis of the proposed pipeline routing, identification of permitting and
property/right-of-way acquisition requirements necessary to support proposed pipeline
construction, and a comparative cost assessment of any identified alternatives. Any
identified alignment options will be reviewed with respect to constructability, costs,
permitting, right-of-way acquisition needs, and other potential special interests.
Under this task, develop preliminary overview maps and conceptual plan and profile
drawings for detailed analysis and review with District management staff and other
interested parties. These large-scale composite mapping worksheets will serve as key
tools from which any identified alternatives may be analyzed and compared. The
preliminary drawings will include composite utility information along prospective
pipeline routes to assist with localized routing recommendations. The presence of
existing utilities will have a bearing on pipeline alignment options. Preliminary
alignment overview mapping worksheets will be provided for the alternative
alignments on standard D-sized sheets (22” x 34”) at a scale of approximately
1”=100’. This task includes meeting with District staff to review preliminary
alignment drawings and mapping.
3.8
River Terrace North Force Main Relocation – Conduct preliminary design for the
relocation of the River Terrace North Force Main. The force main sewer route will
connect the River Terrace North Pump Station to the north end of the proposed
gravity trunk sewer in Roy Rogers Road that will convey sewage initially to the River
Terrace South Pump Station. The preliminary design will focus on the following:
 Preliminary pipeline route and profile using available as built data of the River
Terrace Northwest and Polygon at West River Terrace developments and contour
data from the proposed Washington County widening and improvements of Roy
Rogers Road.
 Pipeline sizing based on efficient use of the existing River Terrace North pumps to
serve the existing UGB and to accommodate future potential expansion of the
Twenty-Fifth Amendment, Exhibit A - Page 14 of 22
River Terrace North Pump Station as current Urban Reserves are brought into the
UGB and annexed by Tigard and Beaverton.
 Coordination with proposed Washington County widening of and improvements
to Roy Rogers Road.
 Develop phasing plan of the force main construction, including incorporation into
the Washington County roadway improvement plans and coordination with
District’s improvements to the Bull Mountain Trunk to accommodate the sewage
flows from the River Terrace North Pump Station.
This task excludes land surveying and relies on available contour data provided by the
District, Washington County and others for route and profile development. This task
includes up to two meetings with District and County staff to perform interviews and
site work, and to discuss alternative routing recommendations.
3.9
Preliminary Design Report - Prepare a preliminary design report describing the
proposed facilities, the design issues and the decisions made. It will be prepared in a
format acceptable to the District and DEQ.
Task 4 - Preliminary Design Approvals and Permits
Consultant shall assist the District in obtaining approvals and permits for the preliminary
design of the Project. Work tasks shall include the following:
4.1
Washington County Planning Approval - A Washington County Land Use permit will
be required for the pump station within zoned Exclusive Farm Use (EFU) areas and
force main and gravity sewer located outside the UGB. Consultant shall perform the
following tasks to assist in obtaining Washington County planning approval. District
will pay land use design review fees.
A. Application Preparation and Coordination
1) Pre-Application Conference
a. Complete Pre-Application Conference Request and prepare accompanying
memorandum outlining the project for submittal to County.
b. Prepare the necessary materials in advance of the Pre-Application
Conference request submittal. Submit required copies of meeting request.
Pre-application Conference fee provided by District.
c. Attend pre-application conference.
d. Complete a summary of the conference and coordinate with appropriate
team members on action items.
2) Develop application narrative outline and submittal requirements, plan set and
Project particulars, and proposed schedule. Provide application requirements
checklist to Project team. Site plan and design-related graphics will be
prepared by Consultant.
3) Neighborhood Meeting
Twenty-Fifth Amendment, Exhibit A - Page 15 of 22
a. Coordinate with District to schedule and attend the required neighborhood
meeting.
b. Prepare required notice including letter, tax map, and graphics. Obtain
mailing list and mail notice as required. Twenty day notice is required
before the Neighborhood Meeting can be held. Develop the required
posting for the site and post the property.
c. Attend the neighborhood meeting and prepare meeting notes to include in
the application.
4) Coordination Meetings with King City and Tigard
a. A coordination meeting will be held with the King City and Tigard.
B. Application Preparation and Submittal:
1) Prepare the land use application narrative to address all applicable criteria and
standards identified at the Pre-application Conference. Required drawings and
technical reports will be provided by Consultant. Obtain required Service
Provider Letters.
2) Compile report graphics to support land use application narrative.
3) Forward draft narrative to Consultant and project team for review and
comment. Incorporate comments and revise draft narrative and plans as
needed. Coordinate with District to obtain appropriate signatures on the
application.
4) Submit application narrative and plans to Washington County for
completeness review (30-day review period). Coordinate with County staff to
revise or supplement the application as needed.
5) Following completeness review, submit the required number of plans to the
County - drawing sets and application narratives. Coordinate with County and
District during the application review period. Respond to any questions that
arise and monitor whether any calls or letters are received following public
notice.
6) Review final written decision and conditions with District.
C. Project Meetings
1) Conduct up to four Project team meetings and work sessions with District
regarding land use application.
2) The County processes Special Uses as a Type II process, which includes a
Planning Director decision with notice and opportunity to appeal. The County
has the option to “elevate” the review to a public hearing before the
Washington County Hearings Officer. If that occurs or an appeal is received, a
supplemental scope will be prepared.
Twenty-Fifth Amendment, Exhibit A - Page 16 of 22
4.2
Clean Water Services Service Provider Certification - Consultant shall assist District
in obtaining Service Provider Certification from District’s Development Services,
required for the Washington County conditional use permit. Consultant shall prepare
the service provider application including natural resource assessment report and
wetland delineation report prepared under Task 3, and meet with Development
Services. Consultant shall prepare a table of enhancement plants and planting
specifications to meet any required vegetated corridor enhancement. Consultant shall
prepare narrative for inclusion in the natural resource assessment report that discusses
the size and location of proposed impacts as well as the proposed mitigation area and
planting plan, if required. District will pay the service provider certification fees.
Task 5 - Final Design
Consultant shall perform the final design and develop and produce final plans, specifications
and details necessary to construct the Project in compliance with District standards and
comments. The Project will be constructed in two separate bid packages, as follows.
Package 5A
Package 5A will be contracted by District and will include the following:
 River Terrace South Pump Station
 Gravity Sewers and Force Main
o Roy Rogers Trunk Sewer from approximate Tigard UGB to Pump Station
o River Terrace South Force Main from Pump Station to Bull Mountain Trunk
Sewer in Beef Bend Road
o River Terrace North Force Main from Pump Station to Roy Rogers Road.
o River Terrace North Force Main in Roy Rogers Road, south of the Tigard
UGB
Package 5A tasks include the following:
5A.1 Construction Plans - Complete the final design and prepare construction drawings for
the proposed improvements. It is anticipated that the drawings will consist of
approximately 170 sheets, as follows:
River Terrace South Pump Station:
a) General Plans - Title sheet, drawing index, vicinity map, symbols and legends,
abbreviations, design data table and general notes. Approximately 5 sheets.
b) Civil Plans - Civil design plans for the pump station site, including erosion and
sedimentation control, site work, site piping and grading. Approximately 20
sheets.
Twenty-Fifth Amendment, Exhibit A - Page 17 of 22
c) Mechanical Plans - Detailed mechanical design plans for the pump station,
including plan, elevation and sectional drawings at the appropriate scale, and
specific details identifying necessary mechanical equipment including pumps,
valving and piping. Approximately 5 sheets.
d) Structural Plans - Detailed structural design plans, elevation and sectional
drawings at the appropriate scale, and specific details to meet all relevant site
conditions and building codes as well as incorporating recommendations from the
geotechnical engineer related to foundation design, soils and groundwater
conditions. Approximately 10 sheets.
e) Architectural Plans - Detailed architectural design plans, elevation and sectional
drawings at the appropriate scale, and specific details to accommodate the
construction of the pump station structure above grade to meet the aesthetic needs
of the site, including building code compliance sheet. Approximately 4 sheets.
f) HVAC Plans - Detailed plans and details associated with HVAC to provide
adequate heating and ventilation in the structure and comply with relevant code
requirements. Approximately 2 sheets.
g) Electrical, Instrumentation and Control Plans - Plans, details, layouts and notes
needed for work associated with electrical, instrumentation and controls. This
work will include a new electrical service to the site and new standby engine
generator. System instrumentation, controls and alarm requirements will be based
on current District standards. Station PLC control and alarm communications
with mission controller will be defined. Approximately 32 sheets.
h) Landscape Plans - Plans and details for soil restoration, planting schedule and
layout for vegetation restoration of the pump station site. Approximately 3 sheets.
Gravity Sewers and Force Main:
a) General Plans - Vicinity map, drawing index, general notes, key map, survey
control/geotechnical exploration map. Approximately 7 sheets.
b) Roy Rogers Trunk Sewer Plans and Profiles - Single strip, plan and profile
drawings, at a scale of 1” = 20’ horizontal and 1”= 5’ vertical. Approximately 9
sheets.
c) River Terrace South Force Main Plans and Profiles - Single strip, plan and profile
drawings, at a scale of 1” = 20’ horizontal and 1”= 5’ vertical. Approximately 17
sheets.
Twenty-Fifth Amendment, Exhibit A - Page 18 of 22
d) River Terrace North Force Main From Pump Station to Roy Rogers Plans and
Profiles - Single strip, plan and profile drawings, at a scale of 1” = 20’ horizontal
and 1”= 5’ vertical. Approximately 4 sheets.
e) River Terrace North Force Main From Pump Station in Roy Rogers from the Tiard
UGB to Beef Bend Road Plans and Profiles - Single strip, plan and profile
drawings, at a scale of 1” = 20’ horizontal and 1”= 5’ vertical. Approximately 5
sheets.
f) Special Detail Plans - Various details for manhole connections, air release and
vacuum control, creek crossings, cased roadway crossings, work area limits,
trench and backfill configurations. Approximately 8 sheets.
g) Road and Street Restoration Plans - Roadway and street restoration plans, notes
and details as required by permitting agencies. Approximately 3 sheets.
h) Traffic Control Plans - Details, layouts and notes regarding special traffic control
measures required by permitting agencies. Approximately 11 sheets.
i) Erosion Control Plans - Details, layouts and notes needed for special erosion
control measures and 1200-C permit. Approximately 25 sheets.
5A.2 Contract and Specifications - Prepare bidding document, construction contract, and
technical specifications. Bidding document and construction contract will be
developed following District standards and the EJCDC format. Specifications will be
developed following CSI format.
5A.3 Engineer’s Estimate - Prepare estimate of quantities for use in the construction and
prepare engineer’s opinion of probable construction cost.
5A.4 Final Design Reviews and Meetings - Consultant shall provide 50%, 90%, and 100%
complete design submittals in accordance with District requirements presented in the
District Design and Construction Standards for Sanitary Sewer and Storm Water
Management. Review comments for the 100% complete design submittal will be
submitted by District to Consultant via e-mail. Provide electronic files (PDF) of draft
construction documents and reports to District one week in advance of each review
meeting. Assemble electronic files of final approved bidding documents (Microsoft
Word and PDF) and construction drawings (AutoCAD and PDF) and deliver them to
District.
Twenty-Fifth Amendment, Exhibit A - Page 19 of 22
Package 5B
Package 5B will be contracted by Washington County and will include the following:
 River Terrace North Force Main in Roy Rogers Road, north of the Tigard UGB
Package 5B tasks include the following:
5B.1 Construction Plans - Complete the final design and prepare construction drawings for
the proposed improvements, for incorporation in the County bid documents. It is
anticipated that the drawings will consist of approximately 16 sheets, as follows:
a) General Plans - Vicinity map, drawing index, general notes. Approximately 2
sheets.
b) River Terrace North Force Main Plans and Profiles - Single strip, plan and profile
drawings, at a scale of 1” = 20’ horizontal and 1”= 5’ vertical. Approximately 10
sheets.
c) Special Detail Plans - Various details for manhole connections, air release and
vacuum control, creek crossings, cased roadway crossings, work area limits,
trench and backfill configurations. Approximately 3 sheets.
5B.2 Technical Specifications - Prepare technical specifications using County specification
format (ODOT-style Special Provisions) and bid schedule for incorporation in the
County bid documents.
5B.3 Engineer’s Estimate - Prepare estimate of quantities for use in the bid documents and
prepare engineer’s opinion of probable construction cost for the force main and
gravity sewer improvements in the County contract.
5B.4 Final Design Reviews and Meetings - Provide design review workshops with District
and County staff at the 50%, 90% and 100% stages of design. Provide meeting
minutes to document items discussed and written responses to review comments.
Provide eight sets of draft construction documents and reports to District and County
one week in advance of each review meeting. Assemble electronic files of final
approved bidding documents (Microsoft Word) and construction drawings
(AutoCAD) and deliver them to District and County.
Task 6 - Final Design Approvals and Permits
Consultant shall assist the District in obtaining approvals and permits for the final design of
the Project. Work tasks shall include the following:
Twenty-Fifth Amendment, Exhibit A - Page 20 of 22
6.1
Erosion and Sediment Control 1200-C Construction Permit - The Project construction
will disturb more than one acre, therefore a the 1200-C Permit will be required, and
administered through Clean Water Services or DEQ. Consultant shall prepare the
1200-C permit application and submit it for review, including erosion and sediment
control plans prepared under Task 3. It is anticipated that the permit application will
be submitted for plan review during the design phase, and the issued permit will be
transferred to the construction contractor following Project bidding and award.
Conditions of obtaining the 1200-C permit will be incorporated into the final design
under Task 3. District will pay the permit fees.
6.2
Washington County and Tigard Right-of-Way Permits - Right-of-way (ROW) and
road opening permits will be required for pipeline construction within the County and
City. Consultant shall conduct informal preliminary consultations with each agency,
submit preliminary design drawings for permitting staff review, and prepare permit
applications. Incorporate final conditions of approval into the final design under
Task 5. District will pay permit fees.
6.3
Washington County Building Permits - Prepare the necessary grading permit, building
permit and trade permit applications and provide copies of plans and specifications,
design calculations, and additional technical narratives, as required, to assist in
obtaining Washington County approval. District will pay all plan review and permit
fees.
Task 7 - Beef Bend Gravity Trunk Feasibility Analysis
Consultant shall perform a planning level feasibility analysis of a gravity sewer route
connecting the gravity sewer on Roy Rogers Road approximately 1,000 feet north of Beef
Bend Road to the lower portion of the Bull Mountain Trunk on SW Shakespeare Street
through the Beef Bend Urban Reserve. In addition to collection of wastewater through the
Beef Bend Urban Reserve, the gravity route would convey wastewater from the River
Terrace North pump station service area and the upper Roy Rogers gravity service area to the
Bull Mountain Trunk. The gravity route may eliminate the need for secondary phases of the
River Terrace North force main on Beef Bend Road and reduce ultimate pump station sizing
for the River Terrace South pump station. The reduction in other capital improvements is
highly dependent on the timing of construction and coordination with Beef Bend Urban
Reserve concept planning. The feasibility analysis will focus on the following:
 Preliminary pipeline route and profile utilizing available contour data.
 Pipeline sizing based on contributing area and land use data.
 Coordination with transportation network and neighborhood configuration from initial
concept plans for Beef Bend Urban Reserve.
 Field evaluation of drainage crossings and potential environmental risks.
 Review of parcel and land ownership including ROW acquisition risks.
Twenty-Fifth Amendment, Exhibit A - Page 21 of 22
 Impacts to the Bull Mountain Trunk and potential reduction of capital improvements.
 Impacts to the Bull Mountain pump station and potential re-route of service area by
gravity to the Beef Bend gravity sewer.
 Class 4 cost estimation utilizing unit costs from the Upper Tualatin Interceptor study.
This task excludes land surveying and relies on available contour data provided by the
District for route and profile development. Environmental risk and drainage crossing
feasibility will be evaluated based on interviews with District environmental staff, a site visit,
and desktop analysis of environmental and soils GIS layers. The parcel ownership and ROW
risk analysis will be developed based on tax lot databases and interviews with District staff to
understand relationships and historic challenges. The outcome of the risk analysis may
impact the selection of a pipeline route.
This task includes up to three meetings with District staff to perform interviews and site
work, and to discuss alternative routing recommendations. The feasibility analysis will be
documented in a separate draft and final technical memorandum. Consultant will address
District’s comments in the final technical memorandum. Previous work was initiated during
the Upper Tualatin Interceptor study to evaluate phasing of improvements relative to pump
station and force main sizing. The phasing analysis will be finalized in this task and
documented in the technical memorandum.
IV.
Schedule
Consultant shall complete Tasks 1 through 4 by July 31, 2017 and Tasks 5 through 7 by
March 31, 2018.
Twenty-Fifth Amendment, Exhibit A - Page 22 of 22