City of Culver City, California
City Council Agenda Item Report
RECOMMENDATION:
Staff recommends the City Council authorize the issuance of a Request for
Proposals (RFP) for design services related to the improvement of the Braddock
Sewer Pump Station.
BACKGROUND:
The Braddock Sewer Pump Station is located at the northeast corner of the
intersection of Braddock Drive and Sawtelle Boulevard. Sewer flows from a 720-
acre area of Culver City and abutting portions of the City of Los Angeles flow to the
station and are pumped in a force main in Braddock Drive to a City of Los Angeles
trunk sewer in Overland Avenue. Approximately 1,500,000 gallons of sewage are
pumped through the station on a daily basis.
The station has existed at that location since prior to 1945 and has been improved
and upgraded several times. The latest improvement was completed in 1987. The
station consists of a circular collection well for storing sewage inflows, a rectangular
dry well containing three centrifugal pumps and a block house housing the control
systems.
The City has experienced operational problems at the station for several years,
effecting pump efficiency and sewage collection. As a result, staff is frequently
called-out on overtime to tend to these issues.
DISCUSSION:
It has been determined that the main cause of the station performance is the
configuration of the collection well. The existing collection well is built only as deep
Meeting Date: 1/12/2009 Item Number: C-5
AGENDA ITEM: Authorization to Issue a Request for Proposals for Design
Services for the Improvement of the Braddock Sewer Pump Station.
Contact Person/Dept.: Steve Finton Phone Number: (310) 253-6406
Fiscal Impact: Yes [] No [X] General Fund: Yes [] No [X]
Public Hearing: [] Action Item: [] Attachments: [X]
Public Notification: Master E-Mail Notification List (01/07/09)
Department Approval:
Charles D. Herbertson (12/24/08)
City Attorney Approval:
Carol Schwab (by H. Baker) (01/05/09)
Chief Financial Officer Approval:
Jeff Muir (by N. Kimball) (01/06/09)
City Manager Approval:
Jerry B. Fulwood (01/07/09) City of Culver City, California
City Council Agenda Item Report
as the inflowing sewers. This causes sewage to back-up into the adjacent collection
system and invites the build-up of sediments in the storage well and adjacent
sewers. More modern pump stations are built with the collection well significantly
deeper than inflowing sewers. This allows stored sewage to be contained entirely in
the storage well without impacting adjacent sewer lines. Additionally, the bottom of
the storage well should be configured in a way that promotes the passing of solids
and sediments.
In an effort to resolve the ongoing problems, the Public Works Department
commissioned the attached design report from PRP Engineering, Inc. and APD
Consultants, Inc. The report recommends building a deeper collection well with
submersible pumps and provisions to make the station self cleaning. The
recommendation includes the utilization of much of the existing station facilities and
is a cost effective solution to the problems at the station. The consultant estimates
the cost of the improvement to be as follows:
Request for Proposals (RFP)
The next step in the process is to hire an engineering consultant to design the
proposed station improvement. The attached RFP requests proposals from qualified
engineering firms for the preparation of plans and specifications for the
recommended improvement. Proposals would be due on February 12, 2009.
FISCAL ANALYSIS:
There is minimal cost associated with the release of the RFP. It is estimated that
should the City Council ultimately award a consultant contract in response to this
RFP, the cost would range from $130,000 to $150,000. Funding for the design
phase is available in the 2008-09 Adopted CIP budget (P-521: Pump Station
Improvements). Funding for the construction phase will be allocated through the
upcoming budget process.
Design $150,000
Construction $1,652,200
Contingency (15%) $247,800
Total $2,050,000 City of Culver City, California
City Council Agenda Item Report
ATTACHMENTS:
1) Map
2) Design Report
3) Request for Proposals – Braddock Sewer Lift Station Improvements
MOTION:
That the City Council:
Authorize staff to issue a Request for Proposals for design services related to the
improvement of the Braddock Sewer Pump Station.
MEETING DATE: 1/12/09
AGENDA ITEM:
Authorization to Issue a Request for Proposals for Design
Services for the Improvement of the Braddock Sewer
Pump Station
ATTACHMENTS
Pages |109| Map 1|109| Design Report 2 - 48|109| Request for Proposals — Braddock Sewer Lift Station 49 - 82
ImprovementsBraddock Sewer Pump Station and Force Main
Location and Drainage Area
ATTACHMENT 'ICity of Culver City
PRELIMINARY DESIGN REPORT
FOR
Braddock Sewage Lift Station
Improvements
Prepared for:
City of Culver City
Public Works Department
Environmental Program
9505 Jefferson Blvd
Culver City, CA 90232
Contact Person: Steve Finton
(310) 253-6406
Prepared by:
PRP Engineering, Inc.
15568 Brookhurst Street, Suite 185
Westminster, California 92683
Contact Person: Michael Palzes
(714) 374-0048
JN1182
DECEMBER, 2008• Michael W. Palzes
Principal Engineer/Project Manager
R.C.E. No. 42572
ACKNOWLEDGEMENT
This Preliminary Design Report has been prepared by or under the direction of the following design professional,
licensed by the State of California.
3TABLE OF CONTENTS
Description
Page
1. PROJECT OVERVIEW
A. Project Description B. Project Development and Phasing 2
H. STATION CAPACITY AND HYDRAULICS
A. Station Flow Capacity 2
B. Hydraulics 3
C. Pump Selection 3
D. Pump Net Positive Suction Head (NPSH) 4
PROJECT IMPPROVEMENTS
A. Summary of Facility Improvements 4
B. Wet Well Sizing & Configuration 5
C. Construction Sequence of Work 6
IV. PROJECT SCHEDULE 6
V. ESTIMATED PROJECT COSTS 7
VI. RECOMMENDATIONS 7
Table 1 Hydraulic Summary
Table 2 Estimated Construction Costs
Exhibit 1 Pump System Head Curve
Exhibit 2 Site Plan
Exhibit 3 Mechanical Section
Appendix A — City Flow Study
Appendix B — Wemco Hidrostal Pump Performance and Installation Data
Appendix C — Wemco Hidrostal Pump Pre-rotation Manufacturer BulletionBraddock Lift Station Improvements
Culver City
I. PROJECT OVERVIEW
A. Project Description
The existing Braddock Sewage Lift Station is located on the northeast corner of the
intersection of Braddock Drive and Sawtelle Boulevard in the City of Culver City. City
records indicate that the station has existed at this location since prior to 1945.
The Station consists of a circular wet well, a rectangular dry well with three centrifugal
pumps and a above ground block structure housing the control systems. The station
presently collects the Culver City and City of Los Angles demands and pumps them
through an 18" force main approximately 4640 ft to a LA Sanitation District Interceptor
sewer that ultimately flows to the Hyperion Wastewater Treatment Plant.
The station has been improved and upgraded several times; however, operational
problems plague the station. The facility has a non-standard pump/wet well configuration
that does not conform to the Hydraulic Institute Standards (HIS). The HIS is a summary
of standards that have been established by the pump manufacturers as the minimum
installation configuration necessary to operate pumps safely and efficiently. The present
station configuration causes an extreme buildup and collection of sewage solids and
sludge that impacts pump operation and ultimately lowers the station's pumping capacity.
The station's wet well floor is at elevation 15.0. The 18" sewer inlet is also at elevation
15.0. This configuration causes station fill/draw cycle poundings to occur both in the wet
well and in the surrounding collection system.
The station's normal operating cycle has a pump off level approximately 3 ft above the
wet well floor that rises an additional 2 feet for all three pumps to cycle on. Therefore,
the sewer system is typically backed up to elevation 20 during the pump cycle operation
and all sewers with inverts below elevation 18 would be submerged or back up at all
times. This type of operation will collect sludge and sewage solids within the wet well
and collection sewers below elevation 18, which reduces the station's pumping capacity.
The 12" suction lines leading from the wet well to the pumps are configured in a manner
that reduces pump capacity and creates maintenance problems. The suction lines are
located too close together in the wet well and with the build up of solids, the pumps
starve one another when two or more operate together. Additionally, vortexes could form
during multiple-pump operation at lower well levels causing cavitation in the pump
volute, which would reduce pumping capacity and could damage the pumps.
B. Project Development and Phasing
In order, to eliminate the present operational problems with the build up of solids,
reduced pump capacity and premature pump failures, the proposed station improvements
will provide a new wet well constructed to elevation approximately 10 feet lower than the
existing inlet sewer such that the fill/draw cycle could be contained in the wet well. The
Page 1Braddock Lift Station Improvements
Culver City
existing facility has several site restrictions that limit the potential improvements and area
to construct a new wet well. Therefore, two alternatives were discussed and considered
for the ultimate station improvements, including demolition of the existing dry well and
wet well and construction of a new dry well and wet well 10 feet lower than the existing
station. This cost of this alternative is estimated to be at least 50% higher than the other
proposed option. Additionally, the new wet/dry wells would require an extra 2 or 3
months to construct and another 2 — 3 months of temporary bypass pumping adding cost
and risk.
The second alternative consists of constructing a single, deeper rectangular wet well to
house three submersible pumps. The wet well would be constructed adjacent to the
existing dry well under the sidewalk and parking lane of Sawtelle Boulevard. The
existing dry well would be modified and used as a valve vault for the three pumps. The
existing dry well will require the removal of existing valves, supply piping and pumps for
the installation of the new valves and piping system.
The existing wet well will be used during construction for temporary bypass pump
operation, which would consist of two submersible pumps whose combined flow rate will
provide the station's flow capacity. An engine driven pump will be provided as a backup
system in the event of an electrical outage and/or a mechanical pump failure. Both the
temporary submersible and the engine driven pumps will be provided with temporary
valves and piping located above ground that connect to the City's existing 8" bypass
connected to the 18" force main downstream of the force main's isolation valve. This
temporary system will be in operation for 3 to 4 months during the demolition of the
existing pumps and piping system and construction of the new inlet sewers, wet well and
submersible pump system.
Several new manholes and new gravity sewers will be required in Sawtelle Boulevard
adjacent to the station to redirect flows to the new wet well. The footprint of the wet well
and the design of the new sewers and manholes are constrained by existing utilities in
Sawtelle Boulevard. An existing 8" gravity sewer flowing southerly in Sawtelle
Boulevard is in conflict with a proposed new manhole. This line needs to be kept in
service during construction and will be diverted temporarily to the existing wet well
during construction. Once the new wet well is ready to provide the sewer pumping
service, the existing sewers not to be used will be slurry filled and abandoned in place. A
summary of all the necessary improvements and station modifications will be provided in
Section 3 of this report.
II. STATION CAPACITY & HYDRAULICS
A. Station Flow Capacity
The station's present configuration has three units that operate as a lead, lag and standby
sequence. The pumping capacity of the units is difficult to determine due to the abnormal
pump operation with cavitation and a reduced rate of flow. Therefore, the new station|1010| Page 2Braddock Lift Station Improvements
Culver City
improvements will provide the flow capacity that meets the maximum projected flow
requirements summarized in a flow study prepared in 1992 for the Braddock Lift Station.
The flow study indicates a required pumping capacity equal to 3340 gpm, as referenced
in Appendix A of the report. Therefore, the two pumps units shall be selected to operate
in parallel at a combined flow rate of 3340 gpm or 1670 gpm/each. However, if a single
unit is operating, the pump will experience a lower total dynamic head (TDH) and move
along the pump curve to provide a flow rate of approximately 1800 gpm,
B. Hydraulics
Table 1 summarizes the system hydraulics for the peak pumping rate of 3340 gpm and a
single pump operation along with the flow rate from all three pumps operating in parallel.
The TDH is the sum of static lift plus the force main friction loss plus the minor station
losses from the piping and valves used to control the pump operation and isolate each of
the units from the system. The TDH for the new submersible pump configuration at the
peak flow is 72 feet with a pump rate of 1670 gpm per unit. A system head curve was
plotted along with the one, two, and three pump performance curves. The intersection of
the single pump performance curve with system head curve provides the actual
performance of 1800 gpm with a TDH = 64 ft; the pump curve plotted for a two pump
operation intersects the system head curve at 72 ft at a flow rate of 3340 gpm and the
three pump operation plotted with the system head curve pumps at a rate of 4400 gpm
with TDH = 81 feet. Exhibit No. 1 illustrates the system head curve plotted with the
pump performance curves for a single, two and three-pump operation.
The new pump's performance requirements are higher than the existing units due to the
deeper wet well. The existing station requires 30 Hp motors as compared to the new
station, which will need 45 Hp motors. The existing Motor Control Center (MCC) will
need to be upgraded with larger motor starters to meet the 45Hp motor requirement.
C. Pump Selection
The pumps selected by the City's staff were Wemco Hidrostal Pumps that are available
for dry pit or submersible pumping configuration. A key factor for selecting the Wemco
Pump was it's the high performance references from other agencies. This type of pump
unit was identified as less problematic with clogging and ragging, which has been
identified by the City's staff as problem experienced at the Braddock station. The pump
proposed for the new station is the Wemco Hidrostal Model No. F6K-M
Submersible/Immersible unit operated at a speed of 1755 rpm with 77.7% pump
efficiency. Appendix B of the report has the pump performance curve and pump
manufacturer literature for the pump slide rail system and piping connection for a wet
well submersible installation.
The Wemco Hidrostal pump is also available in a pre-rotation configuration and
Operation. In a pre-rotation system, one pump is placed lower than the others in a pre-
rotation basin. This configuration allows the well level to be pumped low and carry
solids to the lower pump. The pre-rotation basin causes the flow to rotate before entering
Page 3Braddock Lift Station Improvements
Culver City
the pump keeping sediment suspended and enhancing the solids passing capability of the
pump. This type of operation would more readily pass solids and reduce sediment build-
up in the wet well. The pre-rotation configuration will require the wet well to be
constructed 18" Deeper creating additional cost. Additionally, a pre-cast pre-rotation
basin and modified pump would be required. The additional estimated cost would be
$40,000 to $50,000 for installing one of three units as a pre-rotation unit. The pre-rotation
pump brochure and manufacturer's information is provided in Appendix C. The pump
operation would be normally operated with the start/stops for all three pumps. The pre-
rotation pump unit would be either manually operated by the operator on a daily or
weekly bases or a timer basis that would pump the well 30" lower than normal to remove
the collected solids from the wet well.
D. Pump Net Positive Suction Head (NPSII)
NPSH is a critical component of all pumps that needs to be analyzed with the field
installation improvements. The pump manufacturer has provided pump performance
curves that illustrate NPSH requirements at the various flow rates. A pump operation
requires that the NPSH R (Required) is less than NPSHA (Available). Otherwise, the pump
experiences cavitation. The NPSH A is determined by the pump's installation
configuration and the pump's operation. The NPSH A considers the gravitational force
acting on the fluid being pumped, based on the elevation of the pump compared to sea
level, the temperature of fluid being pumped, the difference of the fluid level in the well
compared with the elevation of the impeller arid the friction losses for the pumped fluid
experienced between the well and the pump's impeller. The proposed pump system's
NPSHA easily exceeds the NPSH R for the proposed submersible pump configuration.
Additionally, as identified in the preliminary evaluation for the project, the existing
pumps and configuration would be analyzed for the pump's NPSH. The evaluation
determined that the existing pump's NPSH A was higher than the NPSH R However, the
well's collected solids around the inlet piping as well as the close installation of the inlet
piping in the well, actual losses could not be determined for this analysis. Therefore, the
calculation of the existing station's NPSH A cannot be finalized for the existing pumps.
III. PROJECT IMPROVEMENTS
A. Summary of the Facility Improvements
The proposed project improvements are illustrated in Exhibit No. 2. Exhibit No. 2 shows
the proposed new wet well and submersible pumps with the existing dry well vault
converted into a valve vault to house the pump check and isolation valves required to
control and isolate each of pump units. Additionally, Exhibit No. 2 illustrates the new
inlet sewer alignment to convey the sewage flows to the new wet well. The new sewer
will be constructed from the new manholes that will be constructed around the existing
sewer pipelines that will maintain the service during the entire project and be capable of|1010| Page 4Braddock Lift Station Improvements
Culver City
transferring the flow direction into the new system once the new wet well and pumps are
constructed. The new 24" sewer would convey the sewage demands to the new wet well
as shown in Exhibit No. 2. Exhibit No. 3 provides a section of the new wet
well/submersible pumps and inlet sewer crossing under the existing 16" oil line and 6"
MCI conduit. The section also illustrates the existing dry well modification that removes
the existing pumps and modifies the piping and valve configuration to operate with the
new submersible pump units. The section provides a view of the minimum clearance of
3.5 ft between the existing MCI conduit and the proposed wet well's exterior wall. This is
the minimum space necessary to shore the new wet well forms used for the construction
of a 30 ft. deep wet well structure without relocating the existing MCI conduit. The
section also illustrates the depth of the new wet well with the pump control levels
compared to the inlet sewer elevation. Appendix D provides the plan and section of the
existing BSLS improvements that will be removed for the new improvements.
The other improvements shown in Exhibit No. 2 include modifications to the existing
MCC/control system and a new meter in a 6' x 6' vault. Both the new meter and control
system will be installed during the station's temporary bypass pump period to avoid any
potential outages. The existing generator will not require any improvements, as the 150
kW capacity is adequate to provide the emergency backup power supply for the 2 —45 hp
motors, plus the auxiliary demands to control the station.
As identified in Section II.0 Pump Selection, the pre-rotation pump installation
configuration would lower the wet well another 18" in order to utilize the self-cleaning
operation. The basin is pre-casted by the manufacturer for installation in the wet well.
Exhibit Nos. 2 & 3 do not illustrate the additional improvements required for the
prerotation pump unit.
B. Wet Well Sizing and Configuration
The wet well configuration is shown in Exhibit Nos. 2 and 3 with the inlet sewer and
pump control levels that conform to HIS and typical pump installations. The wet well
volume is determined by limiting the pumps on/off cycles to 6 cycles per hour to prevent
abnormal wear on the pumps and premature failure of units. The operation volume of the
wet well is determined by the following equation:
Wet Well Volume (max)
= 0
pump gpm X 10 minutes/cycle
7.48 gal/cf 4
Sump Volume (max) = 3340 gpm X 10 minutes/cycle = 1116.3 CF
7.48 gal/ef 4
The wet well is limited to a dimensions equal to 6.5 ft wide by 32 ft long, requiring an
operation volume of 5.4 ft to prevent excessive start/stop pump cycles. Exhibit No. 3
illustrates the inlet sewer elevation, the wet well control levels, and the pump installation
requirements for this application, including the wet well depth of 30 feet deep to
accommodate all the requirements.
Page 5
9Braddock Lift Station Improvements
Culver City
C. Construction Sequence of Work
The sequence of work will require the contractor to secure the equipment and delivery
dates as the first order of work for all the new equipment. This will include the pumps,
valves, piping, flow meter, hatches, manhole frame and covers, precast manholes and
vault, MCC, and Control equipment. Since the pumps and motors are the longest delivery
items, it is recommended that the City pre-order the pump units during the design phase
of the project. This would save a minimum of two months delay for the delivery of the
pump units during the construction phase. The contractor will be required to prepare a
detailed construction schedule demonstrating the construction windows of the various
phases of improvements with the procurement and installation of the equipment in a
sequence of events that will maintain a continuous pumping operation at the station's
rated capacity and complete the construction within the contract's required timeline.
IV. PROJECT SCHEDULE
The Project Schedule (Exhibit No. 4) provides an anticipated timeline for all three phases of
the project, which includes the preliminary design, final design and construction phases. The
present schedule has set the start of the final design in February 2009 and final plans and
specifications ready for bidding with contractors by the first week of June 2009. A proposed
bid opening is scheduled for the second week of July and award of the contract by the first
week of August 2009. The estimated construction completion is set for June 30, 2010 given
that the pumps are pre-ordered by the City for the contractor. Also, to reassure the City that the
project will be completed within the allot time and all construction be performed with high
quality construction methods and procedures, it is suggested that the city consider a pre-
qualified list of contractors that have completed similar projects in the recent past be requested
to bid the project. The list would be limited to 5 or 6 general contractors.
The contractor will be required to submit a construction critical path summary and a detailed
project schedule that illustrates all construction methods and special operations/procedures
required to complete the project. Project coordination with the City's staff, Contractor and
Design Engineer will be paramount to the successful completion of the project.
V. ESTIMAIED PROJECT COSTS
Table 2 summarizes the preliminary estimated construction cost for the proposed
improvements and for maintaining the facility's continuous operation. The project's estimated
construction cost is $1,900,000 and includes a 15 % contingency factor due to the difficult
construction and sequence of work. The project will be reviewed with a general contractor
capable of meeting all of the special construction requirements in order to confirm the
estimated construction cost prior to the completion of the design plan preparation phase. The
project would have an additional $40,000 to $50,000 costs for the prerotation pump installation
70
Page 6Braddock Lift Station Improvements
Culver City
not included with the estimated construction costs. The engineering design and construction
assistance fees are estimated $130,000 to $150,000, plus the geotechnical engineer's fee.
VI. RECOMMENDATIONS
PRP Engineering, Inc. recommends that the City authorize the project's Phase II services based
on the PDR highlighted requirements and the City staffs final PDR comments. A request for
proposal would need to be issued by the City first week of January 2009 and design contract
would be awarded by the second week of February 2009.
Page 7
ft18-inch FM Velocity (ft/sec
Number of Pump units
Pump Rate Each Pm)
Pump Operating Speed (RPM)
Pump Efficiency (%)
Actual -Um HP Requirement
Pump Motor Size HP
Table
City of Culver City
Braddock Sewage Lift Station
Hydraulic Summary
Velocity Single Pump Two Pumps Three Pumps
Operating Capacity (gpm) 1800 3340 4440
Stations Minor Losses (ft)
2-8" 90 deg Elbows 11.5/10.6/9.4 3.3 2.8 2.2
8"Check Valve 3.5 3.0 2.2
12" Plug Valve 5.1/4.7/4.2 0.4 0.3 0.2
18 LF 8" FM Pipe 55/47/39/1000 1.0 0.8 0.7
12x16x16 vvye 5.1/4.7/4.2 1.2 1.0 0.8
Miscellaneous Loss 0.5 0.7 0.9
Station Total Minor Losses 9.9 8.6 7.0
High Point 18" Force Main 61.8 61.8 61.8
Pump On Level 13.0 13.5 14.0
Static Lift (ft) 48.8 48.3 47.8
59 LF 16" FM pipe 1.915.8/10.1 0.1 0.3 0.6
4,581 LF 18" FM pipe 1.1/3.2/5.5/1000' 4.9 14.6 25.2
2 -18" Gate Valves K=0.19 0.1 0.2 0.2
Minor Loss 9.9 8.6 7.0
72TABLE 2
City of Culver City
Braddock Lift Station
Upgrades & Improvements
Preliminary Design Report
Estimated Construction Cost
Item
No. Description Quantity Unit
Unit
Cost
($)
Estimated
Cost
($)
1 Site Wore ] 1 LS $ 25,000 $ 25,000
2 Onsite Piping 24" Sewer [2] 115 LF $ 2,400 $ 276,000
3 Onsite Piping 10" Sewer 44 LF $ 200 $ 8,800
4 60" Diameter Manholes 2 Ea $ 12,200 $ 24,400
5 48" Diameter Manholes 1 Ea $ 4,500 $ 4,500
6 Electrical MCC for 3 -45 Hp Motors & Pull Boxes 1 LS $ 75,000 $ 75,000
7 New Wet Well Sonic Level & Control System 1 LS $ 60,000 $ 60,000
8 New Wet Well Structure & Shoring w/ Excavation [3] 1 LS $ 550,000 $ 550,000
9 Temporary By-Pass Pumping Systems [4] 4 Months $ 35,000 $ 140,000
10 Wemco Pumps w/ Slide Rail Assembly Installed 3 Ea $ 85,000 $ 255,000
11 Spare Wemco Pump 1 LS $ 50,000 $ 50,000
12 8" Check Valves 3 Ea $ 8,500 $ 25,500
13 12" Plug Valves 3 Ea $ 6,000 $ 18,000
14 Discharge Piping, Supports, Couplings & Pressure Sensor 1 LS $ 33,000 $ 33,000
15 16" Magnet Flow Meter & Vault 1 LS $ 35,000 $ 35,000
16 Demolition & Disposal of the Exisitng Pump, Piping & MCC [5] 1 LS $ 32,000 $ 32,000
17 Abandon the Existing Wet Well, 10" & 18" Sewers [6] 1 LS $ 40,000 $ 40,000
Estimated Total Costs $ 1,652,200
Contingencies @ 15% $ 247,800
Total Construction Cost
_ _
$ 1,900,000
[1] Site work includes the cost for the replace of exisitng retaining wall, sidewalk curb and gutter and street improvements over the wet well.
[2] 24" sewer is approximately 20 ft deep w/in the public RAN and will require shoring for installation.
[3] Costs includes the new wet structure & the interior lining of the wet well with T-Lock plus the costs for excavation, forms and shoring.
The costs also include the dewatering and traffic control for constructing the facility in the street RAN.
[4] The costs includes the temporary pump system w/ controls & temporary above ground piping & valve system to bypass the existing
flows from the station for approximately 4 months.
[5] The costs include the removal and disposal of the three existing pumps with suction and discharge piping & valves & the existing MCC.
[6] The costs includes the slurry backfill into the existing sewer and wet well to abandon the system sewer & wet well remove from service.
tcostest_113008.xls. BASED ON THE
WEMCO PUMP
FGK-M 12.57 IMPELLER
2000 2500 3060 3500
0 (GPM)
C11-1 OF CULVER CITY
BRADDOCK LIFT STATION
PUMPING SYSTEM IMPROVEMENTS
PUMP/SYSTEM HEAD CURVE
EXHIBIT
No.
prp engineering, inc.
WATER AND WASTEWATER ENGINEERS
1E568 ERCIOKHURST ST. ,SUITE 155
WESTMINSTER, CA. 921383 (714) 374-0048
74EXISTING DRY WELL
TO BE MODIFIED BY
REMOVING EXISTING
PUMPS, PIPING AND
VALVES. STRUCTURE
WILL BE CONVERTED TO
A CHECK VALVE VAULT
"1" = 10'
EXISTING
18" FM
EXISTING WALL
TO BE REMOVED
AND REPLACED
8" CHECK
VALVES
EXISTING CONTROLS
AND MCC TO BE
UPGRADED
16' FLOW METER
84 6' X 8' VAULT
EXTEND 8"
DI BYPASS
EXISTING
16" EM
EXISTING
8" BYPASS
EXISTING
10' SEWER
ABANDON EXISTING
18" SEWER
---- F __L_c_L_ jLvER
CITY
or
LOS AfZErES
TEMPORARY 10" SEWER DURING
WET WELL AND RELOCATED
SEWER CONSTRUCTION NEW 24' SEWER
PER
10" SEWER
ABANDON
EXISTING
10" SEWER
NEW 60"
MANHOLE
* POTHOLE LOCATION
DURING DESIGN PHASE
/
- - - - - _ „/„.%
EXISTING ' WET WELL EXISTING 18" SEWER
TO BE MAINTAINED
IN SERVICE UNTIL
NEW WET WELL PUMPS
ARE FUNCTIONAL, THEN
ABANDON IN PLACE
EXHIBIT
NO.|1010|prp engineering, inc.
WATER AND WASTEWATER ENGINEERS
15568 BROOKHURST ST ,SUITE 185
VVESTMINISTER, CA. 92683 (714) 374-0048
CITY OF CULVER CITY
BRADDOCK LIFT STATION
PUMPING SYSTEM IMPROVEMENTS
SITE LOCATION PLANEL. 34.25± EL. 35.60±
|910|nMAINTA'N A
' MINIMUM OF
2' CLEARANCE /
FROM THE
EXISTING 10"
OIL LINE
INCLUDING
SHORING
NEW
4,5" DIA.
MANHOLE
EXISTING 16"
PIPE
10"
livv
1° OIL
8" CHECK
VALVE
NEW
WET
WELL
12" PLUG
VALVE
8" RED
VALVE
NEW
60" DIA.
MANHOLE
12" X 8"
REDUCER
24"
EL. 15.00
REMOVE OLD PUMPS
AND 12" PIPING AND
VALVES FROM EXISTING
PUMP STATION
(NEW VALVE VAULT)
EL. 14.00 LAG PUMP 2 ON
EL. 13.50 LAG PUMP 1 ON
EL. 13.00 LEAD PUMP ON
EL. 7.50 PUMP OFF
EL. 4.00
PROPOSED SUBMERSIBLE
PUMP (45 HP) EXHIBIT
NO.|1010|SECTION
1/4- = 1'--0"
prp engineering, inc.
WATER AND WASTEWATER ENGINEERS
15568 BROOKHURST ST. ,SUITE 185
WESTMINSTER, CA. 92683 (714) 374-0048
BRADDOCK LIFT STATION'
PUMPING SYSTEM IMPROVEMENTS
CITY OF CULVER CITY
SECTIONExhibit No. 4
City of Culver City
Braddock Sewage Lift Station lmprovments
Design/Construction Project Schedule
Task Description Nov,013 Dec-08 Jan-09 Feb-09 Mar-09 Apr-Os May-09 Jun-09 Jul-09 Aug-09 Sep-09 Oct-09 Nov. 09 Dec-09 Jan-1 Feb-10 Mar.10 Apr-10 May-10 Jun-10
mitrari---
_
I. Preliminary Design Phase I
1---
WILF-
2. Design Phase II
IMI1 Plans & Specs
,_
Hi
:
Geotechincal Services — Pre-ordered Pumps
_
3. Construction Phase ill
Project Bict+Award
E
_
Construction Project
EMI
Testing/Acceptance
Legend: •Engineer
Proposal /Bid Period
TT City Staff
Submittal
fl Contractor
City Approval!Award
Geotechincal Engineer
exhFt1t4.XLS
77APPENDIX A
City Flow Study for Braddock Lift Station
18SECTION 4
WASTEWATER CHARACTERISTICS
4.1 - General
There are many variables which affect the quantity of wastewater
that is generated in a particular community. The volume of sewage
varies with the nature of development in the area, the intensity of
the development, economic conditions, and many other factors.
Moreover, the advent of many modern household conveniences has
contributed to increased wastewater flows. The result is that
there are no "standard" unit flow factors which are applicable to
all urban areas in all communities.
While there are several approaches that may be employed to predict
and calculate the sewage flows from an area, the most widely used
is the Uniform Peaking Curve Method (UPCM). The Los Angeles County
and Orange County Sanitation Districts basically use the UPCM
approach, and it has been adopted for use in this study.
This approach utilizes one peaking curve reflecting the typical
peak flows that may be anticipated from any average flow. Average
sewage flows are calculated from typical average unit flow
coefficients such as gallons per day per acre. The peaking curve
reflects the ratio of peak flow to average flow so that for any
calculated average flow, a peak flow can be found on the curve.
This peak flow is then used to size the sewers.
4.2 - Data Collection
Information from the City of Culver City Master Sewer Plan, June,
1970, and past flow records provided by the City were utilized as
an aid in developing unit sewage flow characteristics. This data,
together with available flow data from other representative cities
in the area and the use of generally accepted engineering
practices, was then used as a basis to determine unit flow
coefficients and peaking factors for use in this study. Records
from the City of Los Angeles were used to determine the existing
flow rates generated by the City of Los Angeles that are tributary
to the City of Culver City.
4.3 - Data Analysis
The unit flow coefficients and peaking factors shown in Table 4-1
and Table 4-2 respectively, were derived from the sewer flow data
collected. -The values for low and medium density residential areas
are the same as those employed in the 1970 Master Sewer Plan, and
are very similar to those used in other studies. The high density
residential, commercial and manufacturing values have been adjusted
to reflect the current type of businesses situated the City and are
more typical for a municipality the size of Culver City.
/9
- 8 -The peaking factors used for this study are significantly less than
those used in the 1970 Master Sewer Plan. In general, the peaking
factors from the 1970 study were approximately 40 percent larger
than those used in this study, which in turn corresponds to a peak
flow rate that is 40 percent larger.
TABLE 4-/
UNIT FLOW COEFFICIENTS FOR VARIOUS LAND USES
Land Use (Designation) Avera e Unit Flow Coefficient
Low Density Residential (R-I) 0.0026 cfs/ac 1,700 gpd/ac
Medium Density Residential (R-2,3) 0.0059 cfs/ac 3,800 gpd/ac
High Density Residential (R-4) 0.0075 cfs/ac 4,800 gpd/ac
Commercial District 0.0039 cfs/ac 2,500 gpd/ao
Manufacturing District 0.0047 cfs/ac 3,000 gpd/ac
Schools 0.0015 cfs/ac 1,000 gpd/ac
Hotels & Motels 0.0120 cfs/ac 7,750 gpd/ac
• TABLE 4-2
• PEAKING FACTORS
Average Flow Rate
Gallons Per Day Cubic Feet Per Second
Peaking Factor
3,000 0.0046 2.93
8,000 0.0124 2.71
15,000 0.0232 2.57
25,000 0.0387 2.47
40,000 0.0619 2.38
80,000 0.1238 2.25
140,000 0.2166 2.15
230,000 0.3559 2.07
370,000 0.5725 1.99
600,000 0.9263 1.92
1,000,000 1.5472 1.84
1,500,000 2.3208 1.78
2,300,000 3.5586 1.72
3,200,000 4.9511 1.68
4,200,000 6.4984 1.64
6,500,000 10.0570 1.58
9,000,000 13.9251 1.54
13,000,000 20.1140 1.50
18,000,000 27.8501 1.46
25,000,000 38.6807 1.42
20SECTION 5
MODEL DEVELOPMENT
5.1 - General
The model development phase of the project involved the
establishment of a computerized mathematical model of the City's
sewer system utilizing the information assembled in the earlier
phases of the project. The purpose of the model development was
to:
1. Develop a schematic of the existing sewer system
network.
2. Compute the sewage flow tributary to each sewer main
within the study area.
3. Analyze the existing sewer system using the computer
model to determine the system's capability to convey the
flows generated from the present and ultimate
development of the study area, in accordance with the
Zoning Map.
4. Identify the deficiencies in the system.
5. Establish a recommended deficiency correction program.
5.2 - Computerized Model of Sewer System
The sewer system network included in the computerized model was
established in conjunction with the staff of the City of Culver
City and was based on the data collection assembled in the initial
phase of the project. The sewer system selected for modeling
consists of all City owned sewers with the exception of the
upstream portion of certain lines. The portions of the system that
had less than 100 house connections at the upstream end of the line
were not modeled, although the flows contributed by their service
area were considered in the overall analysis.
The existing sewer system network was divided into drainage
districts for input into the computer model. The districts are
numbered and defined the same as those used in the 1970 Master
Plan, with the following two exceptions: 1) District 9 was broken
into two districts as a result of the Duquesne Avenue Relief Sewer
being constructed in 1979. The two districts are referred to
herein as Districts 9-West and 9-East (or (9W and 9E); 2) District
21 was broken into two districts as a result of the Overland Pump
Station being constructed pursuant to that plan. The two districts
are referred to herein as Districts 21-Mesmer and 21-Overland (or
2114 and 210). Those districts which are very small in size or
contain little or no sewer improvements were not included in this
study. The computer input consisted of a numerical designation for
each manhole, the slope of the sewer line, and the size and
roughness coefficient of the pipe. Sufficient information was
- 10 -
21assembled to establish a schematic of the sewer system to be
modeled.
The network established for modeling and the district boundaries
are shown on Plate 1.
The capacity of the existing facilities was determined with the
Manning Equation
1.486
Q = AR S
Where:
Q = Flow rate in cfs
n = Manning's roughness coefficient
A = Pipe cross-sectional area in square feet
R = Hydraulic radius
s = Pipe slope
A Manning's "n" value of 0.013 was used for all sewers.
5.3 - Computation of Sewer Inflows
After establishing the schematic of the sewer system, data was
compiled on the tributary drainage basins, land use and other
factors which affect the volume of sewage generated. Through a
review of the City's sewer record maps, it was possible to define
the tributary drainage areas for the various sewer lines.
Once the study area was divided into drainage districts, it was
necessary to compute the area of each type of land use. This was
done for each area utilizing the present use of the land
(existing), and also for fully developed conditions utilizing the
most intense land use permissible in each zoning district
(ultimate). The unit flow coefficients shown in Table 4-1, when
applied to the land use areas, provide average flow rates for each
particular land use category. It should be noted that even though
a single value was used for the flow coefficient for each land use
category, the rates will vary within each category depending upon
specific use. The variations will be greatest in the commercial
and manufacturing districts. Therefore, computed existing flows
may deviate from actual recorded flows.
The computer program also applies the peaking factor established in
Table 4-2 to the average sewage flow to determine the peak flow in
each reach of the system. Since the design of sewer mains is based
on peak, rather than average, flow rates, it is necessary to
include the peaking factor adjustment in the flow calculations and
analysis of the system.
The program further allows for the input of flows from point
sources, in this case the flows accepted from the City of Los
Angeles. The estimated sewer flows are accumulated totally within
22the computer program to provide the calculated average and peak
flow for each link within or for the entire drainage district.
Table 5-1 summarizes the sewage flow data for each of the districts
analyzed, and Table 5-2 compares the average and peak flow rate by
district based on ultimate land use with the comparable values
given in the 1970 report.
5.4 - Deficiency Criteria
The City's sewer system was modeled using Civilsoft's Sewer System
Modeling program SEWER. The Program is designed to provide
capability for both the analysis of existing sewer systems and the
design of new mains.
In the analysis of an existing sewer system, the SEWER program
compares the capacity of each pipe in the system with the peak
sewage flow projected for that particular link. If the existing
pipe size is inadequate or under capacity, the program automati-
cally calculates the required pipe size to either relieve or
replace the deficient line. The pipe is considered deficient if
the depth of flow at the predicted peak flow is greater than 75
percent of the pipe diameter. This additional capacity in the pipe
is to allow for instantaneous or intermittent peaks, which usually
occur between the hours of 6 and 9 o'clock in the morning on
weekdays and 9 and 12 o'clock in the morning on weekends, and other
factors.
Adjustments in the size of the sewer lines are only shown when an
increase in the pipe diameter is required. Since the model
represents existing pipe sizes, no decrease in pipe diameter is
considered.
The depth of flow in the pipes are all based on normal depth
calculations using the Manning Equation. If the depth of flow
exceeds the pipe diameter, the system becomes surcharged and
backwater effects will be created upstream, however these effects
are not considered by the program. Therefore, other problems may
exist upstream of the identified deficiencies. However, these
would be eliminated if the noted downstream deficiencies were
corrected. .
5.5 - Sewer System Deficiencies
Once the mathematical model was established for the existing sewer
system and the sewage flows for the system were computed, the
existing system was analyzed. The computer printouts for all
districts analyzed and an explanation of the output format are
included in the appendices.
Table 5-3 shows the sewer system deficiencies based on the existing
land use, and Table 5-4 shows the deficiencies based on ultimate
land use criteria.
- 12 -
23TABLE 5-1
SUMMARY OF SEWAGE FLOWS BY DISTRICT
Dist.
Contrib.
Area
(Acres)
Composite
Flow
Factor
Ave.
Flow
(cfs)
L.A.
Flow
(of s)
Total
Ave.
Flow
(cfs)
Peaking
Factor
Peak
Flow
(cfs)
1-EU 54.9 0.00401 0.22 0.22 2.15 0.47
3-E 129.5 0.00417 0.54 0.54 2.00 1.08
3-U 129.5 0.00448 0.58 0.58 1.99 1.14
4-E 26.1 0.00421 0.11 0.390 0.50 2.01 1.01
4-U 26.1 0.00460 0.13 0.815 0.94 1.91 1.79
7-E 78.9 0.00672 0.53 0.003 0.53 2.00 1.06
7-U 78.9 0.00786 0.62 0.007 0.63 1.97 1.25
8-E 720.8 0.00373 2.69 1.030 3.72 1.71
8-U 720.8 0.00405 2.92 1.498 4.42 1.69 7.45//
9E-E 241.9 0.00471 1.14 1.14 1.88 2.14
9E-U 241.9 0.00492 1.19 1.19 1.87 2.23
9W-E 90.3 0.00576 0.52 0.52 2.00 1.04
9W-U 90.3 0.00642 0.58 0.58 1.98 1.15
10-E 69.0 0.00362 0.25 0.25 2.12 0.54
10-U 69.0 0.00348 0.24 0.24 2.13 0.51
12-EU 18.9 0.00794 0.15 0.15 2.22 0.32
16-E 157.0 0.00484 0.76 0.76 1.94 1.47
16-U 157.0 0.00516 0.81 0.81 1.93 1.57
20-EU
77.4
0.00260 0.20 0.20 2.16 0.44
210-E 154.7 0.00595 0.92 0.92 1.91 1.77
210-U 154.7 0.00627 0.97 0.97 1.90 1.84
21M-E 477.9 0.00362 1.73 1.73 1.82 3.15
21M-U 477.9 0.00349 1.67 1.67 1.82 3.05
22-EU 54.8 0.00260 0.14 0.14 2.22 0.32
23-EU 93.0 0.00398 0.37 0.37 2.06 0.75
24-E 190.5 0.00577 1.10 1.10 1.89 2.08
24-U 190.5 0.00583 1.11 1.11 1.88 2.09
TOTALS
E 2635.6 0.00431 11.37 1.423 12.79 1.88 24.00
U 2635.6 0.00452 11.90 2.320 14.22 2.85 26.37
E denotes existing, U denotes ultimate, and EU denotes both equal
24
- 13 -APPENDIX B
WEMCO HIDROSTAL PUMP
PERFORMANCE & INSTALLATION DATA
25Speed, rated
Speed, maximum
Speed, minimum
Efficiency
NPSH required / margin required
Ns (imp. eye flow) / Nss (imp, eye flow)
MCSF
Head maximum, rated speed
Head rise to shutoff
Flow, best eff. point (BEP)
Flow ratio (rated / BEP)
Speed ratio (rated / max)
Head ratio (rated speed / max speed)
Cq/Ch/Ce (ANSI/HI 9.6.7-20041
Selection status
: 1,755 rpm
:1,800 rpm
: 850 rpm
: 77.68 %
: N/A / 0.00
: N/A US Units
:819 USgpm
: 148 ft
:107.37 %
: 1,947 USgpm
: 85.78 %
: 97.50 %
: 92.87 %
: 1.00 / 1.00 /1.00
: Acceptable
Maximum working pressure
Maximum allowable working pressure
Maximum allowable suction pressure
Hydrostatic test pressure
Driver sizing specificatiui
Margin over specification
Service factor
Power, hydraulic
Power, rated
Power, maximum, rated speed
Minimum recommended motor rating
: 30.96 psi.g
: 95.00 psi.g
: N/A
: N/A
: Rated power
: 0.00 %
:1.00
:30.10 hp
: 38.75 hp
: 39.09 hp
:40.00 hp / 29.83 kW
VY1114Ir.:0 PUMP L
Weir Specialty Pumps
www.weirsp.com
411)ROST:41
ROTC.PJET
Pump Performance Datasheet
Customer : FLO-SYSTEMS INC. Quote number : 67586
Customer reference Pump size : F6K-M Submersible/Immersible
Item number : 001R Stages : 1
Service : Raw Sewage Based on curve number P25-D110
Quantity of pumps Date last saved :25 Nov 2008 1:11 PM
How, rated : 1,670 USgpm Liquid type : User defined (no properties)
Head, rated (requested) :7t5 ft Additional liquid description
Head, rated (actual) :71.2 ft Solids diameter, max : 0.00 in
Suction pressure, rated / max : 0.00 / 0.00 psi.g Temperature, max : 68.00 deg F
NPSH available, rated : Ample Fluid density, rated / max : 0.998 / 0.998 SG
Frequency • 60 Hz Viscosity, rated : 1.00 cP
j
W igpecialty Pumps Quote No. 67586
25 Nov 2008 1:11 PMCustomer
Project
Item number
Service
Quantity of pumps
: FLO-SYSTEMS INC.
: 001R
: Raw Sewage
: 3.0
Quote Number
Model / Size
Stages
Pump speed
Date last saved
: 67586
: F6K-M Submersible/Immersible
: 1
: 1,755 rpm
:25 Nov 2008 1:10 PM
Nozzle
Size
Suction
Discharge
1E1
Rating
(ANSI)
125 lbs
125 lbs
Face Pos'n
Left
Right
Impeller Type
Impeller Design
Pump Orientation
Bearing Type (Rad/Thr)
Bearing Lubrication
: Screw-CentrEfugal
: Non-Clog
• Submersible
: Ball/Ball
: Grease
Rotation (view from wet-end) : -
Manufacturer
Power
Service factor
Speed
Orientation / Mounting
Driver type
Frame-size
Enclosure
Hazardous area class
Explosion rating
Volts / Phase / Hz
Insulation
Temperature Rise
Motor mounted by
: Hidrostal
: 53.60 hp
:1.0
: 1760
: Submersible
: Immersible
FE4T4
: CL, Div 1, Groups C & D
FM Approved
: Class F
: WSP
Baseplate Type
Baseplate Material
Orientation
Connection Type
Guard
: Cast Iron Fastout / Steel Base
: Cast Iron
:30 foot cable
: -
Construction Datasheet
Construction
Driver Information
Materials
Casing
Cast Iron
Impeller
Ductile Iron
Liner
High Chrome (regulable)
Elastomer
Buna Wet End 0-rings
Shaft
Sleeve
Weights (Approx.)
Bareshaft pump
:450.0 lb
Baseplate
: 300.0 lb
Driver
: 600.0 lb
Total weight
: 1,500.0 lb
Seal Arrangement
Seal Size
Manufacturer
Gland Material
Seal Face Mal
Throat Bushing
: N/A
Seal Flush Plan
Seal Flush Construction
Baseplate, Connection and Guard
Seal, Gland and Piping
VritINIC.0 PUMP C,:
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WET PtolffP
Weir Specialty Pumps 6.1.2.33
Weir Specialty Pumps 440 West 800 South Salt Lake City, Utah 84101
27
phone: 801 359 8731 • fax: 801 355 9303 www.weirsp.com Page 2 of 10- 80
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Customer reference
Item number : 001R
Service : Raw Sewage
Quantity of pumps : 3
Quote number : 67586
Date last saved : 25 Nov 2008 1:11 PM
Pump size
Stages
Pump speed, rated
Based on curve number
Efficiency
Power, rated
NPSH required
: F6K-M
Submersible/Immersible
: 1
: 1,755 rpm
: P25-D110
: 77.68 %
: 38.75 hp
: N/A
Head, rated : 71.5 ft
Fluid density, rated / max : 0.998/ 0.998 SG
Viscosity : 1.00 cP
Cq/Ch/Ce [ANSI/HI 9.6.7-2004] : 1.00 / 1.00 / 1.00
20E10 2800 2,000 3,200
40 - ''' --
Weir Specialty Pumps Quote No. 67586
28
25 Nov 20081:11 PM
Weir Specialty Pumps
www.weirsp.corn
Pump Performance Curve
Page 3 of 101k1,15NAI:t11,4).10 .i0 STA t
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Customer : FLO-SYSTEMS 1 NC. Quote number : 67586
Customer reference : Pump size : F6K-M Submersible/Immersible
Item number : 001R Stages : 1
Service : Raw Sewage Pump speed : 1,755 rpm
Quantity of pumps : 3.0 Date last saved :25 Nov 2008 1:10 PM
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Weir Specialty Pumps • 440 West 800 South • Salt Lake City, Utah 84101
29
phone: 801 359 8731 • fax: 801 355 9303 • www.weirsp.com
Page 4 of 10General Arrangement Drawing
Weir Specialty Pumps 6.1.2,33
Customer : FLO-SYSTEMS INC. Quote number : 67586
Customer reference Pump size F6K-M Submersible/Immersible
Item number : 001R Stages : 1
Service : Raw Sewage Pump speed : 1,755 rpm
Quantity of pumps : 3.0 Date last saved :25 Nov 2008 1:10 PM
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30
Weir Specialty Pumps 440 West 800 South • Salt Lake City, Utah 84101
phone: 801 359 8731 - fax: 801 355 9303 • www.weirsp.com
Page 5 of 10Weir Specialty Pumps
www.weirsp.com
Veal= :PtIMPN:
.120 To-41!r POMP
Pump Performance Datasheet
Customer
Customer reference
Item number
Service
Quantity of pumps
: FLO-SYSTEMS INC.
•
: 001R-A
: Raw Sewage
:3
Quote number
Pump size
Stages
Based on curve number
Date last saved
: 67586
: F6K-M
: 1
: P25-D110
:25 Nov 2008 1:19 PM
How, ratea
Head, rated (requested)
Head, rated (actual)
Suction pressure, rated / max
NPSH available, rated
Frequency
: 1,6/O LISgpm
:71.5 ft
: 71,2 ft
: 0.00 / 0.00 psi.g
: Ample
:60 Hz
Liquid type
Additional liquid description
Solids diameter, max
Temperature, max
Fluid density, rated / max
Viscosity, rated
: User defined (no properties)
: 0.00 in
:68.00 deg F
: 0.998 / 0.998 SG
: 1.00 cP
Speed, rated
Speed, maximum
Speed, minimum
Efficiency
NPSH required / margin required
Na (imp. eye flow) 1 Nss (imp. eye flow)
MCSF
Head maximum, rated speed
Head rise to shutoff
Flow, best eff, point (BEP)
Flow ratio (rated 1 BEP)
Speed ratio (rated / max)
Head ratio (rated speed / max speed)
Cq/Ch/Ce [ANSI/HI 9.6.7-2004]
Selection status
: 1,755 rpm
:1,800 rpm
: 850 rpm
: 77.68 `Yo
: N/A /0.00
N/A US Units
:819 USgpm
: 148 ft
: 107.37 %
: 1,947 USgpm
: 85.78 `A
: 97.60 %
: 92.87 %
: 1.00/ 1.00 11.00
: Acceptable
Maximum working pressure
Maximum allowable working pressure
Maximum allowable suction pressure
Hyrirntatit test press. Ire
Driver sizing specification : Rated power
Margin over specification 0.00 %
Service factor : 1.00
Power, hydraulic : 30.10 hp
Power, rated : 38.75 hp
Power, maximum, rated speed : 39.09 hp
Minimum recommended motor rating : 40.00 hp / 29.83 kW
Weir Specialty Pumps Quote No. 67586 25 Nov 20081:19 PM
37
Page 6 of 10maw= pumpOi,
MiiiiVICO-FlrMOSTA
nOTO-aET PUMP Weir Specialty Pumps 6.1.2.33
Constructiom Dates heet
Customer : FLO-SYSTEMS INC.
Project
Quote Number : 67586
Model / Size : F6K-M Prerotation
Item number : 001R-A Stages : 1
Service : Raw Sewage Pump speed : 1755.0
Quantity of pumps : 3.0 Date last saved :25 Nov 2008 1:17 PM
Nozzle Size
Rating
(ANSI)
Face Pos'n
Manufacturer : H idrostal
Power : 53.60 hp
Suction Bin 125 lbs FF Left
Discharge 6 in 125 lbs FF Right
Service factor : -
Speed : 1760
Impeller Type : Screw-Centrifugal
Impeller Design : Non-Clog
Orientation / Mounting : N/A
Pump Orientation : Immersible
Driver type : Immersible
Bearing Type (RadfThr) : BalliBall
Frame-size : -
Bearing Lubrication Oil
Enclosure : -
Rotation (view from wet-end) : -
Hazardous area class
Explosion rating
Materials
Volts / Phase / Hz
Casing : Cast Iron
Impeller : Ductile Iron
Insulation : -
Liner : High Chrome (regulable)
Temperature Rise
Elastomer : Buna Wet End 0-rings
Motor mounted by WSP
Shaft
Sleeve
miame= Seal Arrangement
Seal Size
Pump Support : Precast 800 basin / ductile iron fastout
Guideshoe Material : Ductile Iron
Manufacturer
Lifting System : 30 foot cable
Gland Material
Suction Bell : Galvanized
Seal Face Marl
Throat Bushing
: N/A
-
immums=2. Seal Flush Plan
Bareshaft pump : 450.0 lb
Baseplate : 300.0 lb
Driver : 600.0 lb
Total weight : 1,500.0 lb
Seal Flush Construction
32
Weir Specialty Pumps • 440 West 800 South Salt Lake City, Utah 84101
phone: 801 359 8731 • fax: 801 355 9303 www.weirsp.com
Page 7 of 1080
60
cr.
ct, 40|1010|20
180
11,800 rpm Marc:
160 --
140
11,755ipm Raieti
120
z
50
80 —
777
. • . •
• .
::. • : :
• :
. • . . 40
30
20
Customer
Customer reference
Item number
Service
Quantity of pumps
Quote number
Date last saved
: FLO-SYSTEMS INC.
: 001R-A
: Raw Sewage
:3
: 67586
:25 Nov 2008 1:19 PM
Pump size
Stages
Pump speed, rated
Based on curve number
Efficiency
Power, rated
NPSH required
: F6K-M
:
: 1,755 rpm
: P25-D110
:77.68 %
: 38.75 hp
: N/A
Flow, rated
Head, rated
Fluid density, rated 1 max
Viscosity
Cq/Ch/Ce [ANSI/HI 9.8.7-2004]
: 1,670 USgpm
:71.5 ft
: 0.99810.998 SG
:1.00 cP
: 1.00 / 1,00 / 1.00
90
BO
70
200 100
• • .......
0 rpm Min
10
• .
1,600
Capacity - USripm
2,800|10 10|3200 , 400 . BOO
Weir Specialty Pumps
PUMVile:!
www.wefrsp.corn
j•Mq0.4F.,./' . •
Pump Performance Curve
Weir Specialty Pumps Quote No. 67586
25 Nov 2008 1:19 PM
33
Page 8 of 10NOTES:
? 1.13117,017 Or maincip.
- 1 CA04 410 4 0>4170 S017 ON 0.1517•0 ouo-i
Da irk• TEF. 1,0101 01111
• K-0111/14E'(10• miLin a l- OrEs 410)
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L
CPI/MU TO 0.010. ' WAWA,
AT0111 - 1LINNUTIUZIRLIEr ' 1' .,4'' .4,5 Ascv
? FASTFIER 11011-2400 01:19 4105041:6.
C, mot% 1140 Wii.ltiNt: ER FP UV Ira
'EMEMIEIMEIMIIMI=MIMEZIM=1
BRUSIM1111=1n11111
IMEIME 7,014-4 0, ,. vOL,O Ma=
.....1 ni
. •
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II
sum= — — Min
IIIIIIM/E LEM/M1
liall011101• 11Cea1
ililIMICIEMZEE:
INIMMINOZINEME N.
IIIMINEIMIMSII MEM
INIMMIXZMilw, - .,,
we P 1=n n =MEI
EOMMIM
inNEMAIN:= 11.1
INIUMIIMEMI=MM ICIMM
saimmipmemos.
=UM INEMMM2 CECE3IN
MIMI IMEELECI RIMMM
1311MI IZEICEMMI ECCIIN
EMMIOLI ESIZI ONIONIM
EIMILIEIMII=E11110 COMM
WM Wan
CIEICIE1 CEMZEM
maim . 471n1 sr,r,743 .0 d. = .w Gum
mum 3max sr, nw os 3 .mw 01E351.
kE, wle x . GEM=
NZ= ORZERN
MGM ''' 1521 1Mal
ESEVAIMIII IIIIN
EIBEILIMINE IMMIN
EUMEINIMIEZEMEMZE Z112•1
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EINVIUMIAMIIEMM IIIIMINI
IIIIIMMIIIIEM EREME
E1101101iFIMEZIE nncjim
MINIBIEINIE=MENZEIZEMIMINIMEMEEEMI
Ellinin ESZWM
Elinni=a6=IMI EITin
1111EILIZMIDEIME ICE3M1
EINIMICHNEC IMECIAO
1:111:121EIMIMME EE1311E
34 -1- COr3_55EHR7 KOLE
w
93E6 A Mr, P
ti)W1.157
Weir Specialty Pumps 6.1.2.33
Customer
Customer reference
Item number
Service
Quantity of pumps
FLO-SYSTEMS INC.
: 001R-A
: Raw Sewage
: 3.0
General Arrangement Drawing
Quote number
Pump size
Stages
Pump speed
Date last saved
: 67586
: F6K-M Prerotation
: 1
: 1755.0
:25 Nov 2008 1:17 PM
7, 15 5RAWI50 PAS CORE17.SPONnING .511 EtE. UPDATE' •dt 4055REVISING 7-15 OPAWINIG.
2064
331,1-1
/13•C Sca
celavsle,s JW.
ictraw7.-r,
01
.1,0C
r3ACIWys
AXLE 3 _t_
--
IhT11 130 PUPAP We air OM
v.3.3
34
Weir Specialty Pumps • 440 West 800 South . Salt Lake City, Utah 84101
phone: 801 359 8731 • fax . 801 355 9303 • www.wefrsp.com
Page 9 of 10URAWING HAS A C -0FIPZ3P01 .101NQ FE•ISF.F.7. THIS |109| I 7— I 6
LIFTING CABLE
21 7/5
ONTROL CABLE
DP PER BRACKET DETAIL
(2) 1 /2" ANCHOR'S BY OTHEI15 42" X 421
MINIMUM HATCH
OPENING FOR
PM.' FEN:1VAC
TO :101"-ITROLLER
LI01.00 LEVEL PROBE
(BY OTI /CRS)
MOTOR LEADS
UIDE PAILS
1 1/2 SCH. 40 PIPE
(BY OTHERS)
EII CHAIRGE PIPING
(BY OTI-IZI12 )
41005041.5
(131< OPHERS)
numE-si-rr
SEE UFFINO
CHAIN CETA/L
FICAPF E 6.1 CLASS
150# FLANGE,
LOW WATER ELEV. TO
BE BET AT PIMP START
UP ELY AUTHORIZEO
rp
1/2
Ze 3/0
ASS 5/
FAST -CzliT/s; I IMF -SHOr
ARR.ANCEMENT
SIZE 4 & LIR
107003 P,;E-ROTAPEN BASIN CONCRETE FILL (orMONAL)
56 1/4
A
I IFT11,1C4 (THAN
FTAI I
Amy .O. s TIE
tn:ry num...a, Fs zol=zz
5y•reornaaak ra...0.100. nr.KI MO.
Efivirdrech4-63011 .ECO
rommrug. ru1m,
GENERAL APP.ANG [BENT
FAA IMMERSIBLE PUMP
APE-CAST PIRZP.CFCTON BASIN 500
WEI4(1,0- HIDROSTAL PUMPS
nir -I
79652
OVERAL MOTOR MOTOR MOTOR
LENGTH SIZE 3 e4 . SIZE 4 SIZE 5
A
52 1/2 812 1/4 DE 1/4
MIN
Mina n111=111nil
PUIM.P
ROTC,.1.E .P.PV4'40. •
Weir Specialty Pumps 61.2.33
General Arrangement Drawing
Customer
Customer reference
Item number
Service
Quantity of pumps
: FLO-SYSTEMS INC.
: 001R-A
: Raw Sewage
: 3.0
Quote number
Pump size
Stages
Pump speed
Date last saved
: 67586
: F6K-M Prerotation
: 1
: 1755.0
: 25 Nov 2008 1:17 PM
Weir Specialty Pumps 440 West 800 South • Salt Lake City, Utah 84101
35
phone: 801 359 8731 • fax: 801 355 9303 • www.weirsp.com
Page 10 of 10APPENDIX C
WEMCO HYDROSTAL PUMP
PREROTATION MANUFACTURER BULLETION
36••••
WEMCO
:HIDROSTAL
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REROSTAL
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LtAet:;.,ft... .Design RFP-Braddock Lift Station Improvements 1/09
Exhibits
REQUEST FOR QUALIFICATIONS AND
PROPOSALS
DESIGN SERVICES
for
Braddock Sewer Lift Station Improvements
P-521
January 2009
Submittal Deadline: 3:00 P.M., February 12, 2009
19Design RFP-Braddock Lift Station Improvements 1/09
Page 2 of 7
SECTION I — GENERAL
The City of Culver City is seeking the services of a qualified Civil Engineering
firm to provide professional services for the Improvement of the Braddock Sewer
Pump Station.
SECTION I — CITY AND SEWER SYSTEM BACKGROUND
The City of Culver City is a Charter City incorporated in 1917, with a population
of approximately 40,000 within five square miles. The City is located eight miles
west of Downtown Los Angeles and six miles north of Los Angeles International
Airport near the intersection the Santa Monica (1-10) and San Diego (1-405)
freeways.
The City owns and operates a sewage collection system consisting of 7 pump
stations, and approximately 80 miles of gravity sewers and 2 miles of force main.
All City sewers discharge into the City of Los Angeles system for eventual
treatment at the Hyperion Treatment Plant. The Braddock Pump Station is the
City's largest pump station.
SECTION II - PROJECT LOCATION
The Braddock Sewer Lift Station is located at the northeast corner of the
intersection of Braddock Drive and Sawtelle Boulevard in Culver City (See map,
Exhibit 1) .
Sewer flows from a 720-acre area of Culver City and abutting portions of the City
of Los Angeles flow to the station and are pumped in an 18" force main in
Braddock Drive to a City of Los Angeles trunk sewer in Overland Avenue.
Approximately 1,500,000 gallons of sewage are pumped through the station on a
daily basis.
SECTION III — PUMP STATION BACKGROUND
The station has existed at the intersection of Braddock Drive and Sawtelle
Avenue since prior to 1945 and has been improved and upgraded several times.
The latest improvement was completed in 1987. The station consists of a
circular wet well for storing sewage inflows, a rectangular dry well containing
three centrifugal pumps and a block house housing the control systems (See
station plan and profile, Exhibits 2 & 3).
SECTION IV — PROBLEM TO BE RESOLVED
Operational problems have plagued the station for several years. Pumps clog
and sediment builds up rapidly causing sporadic reductions in pump efficiency.
The alarm system is triggered two to three times weekly when sewage in the wet
well rises higher than normal. Sewer staff is forced to pay close attention to the
station and are frequently called-out on overtime to tend to station problems.Design RFP-Braddock Lift Station Improvements 1/09
Page 3 of 7
SECTION V — PROPOSED SOLUTION - DESIGN REPORT
It has been determined that the main cause of the poor station performance is
the configuration of the wet well. The existing wet well is built only as deep as
the inflowing sewers. This causes sewage to back-up into the adjacent collection
system and invites the build-up of sediments in the wet well and adjacent sewers.
To alleviate the problems, the City desires to construct a submersible pump
system with a deeper wet well as indicated in the attached design report
(Exhibit 4).
SECTION VI - SCOPE OF SERVICES
The scope of services to be provided by the Consultant is specifically outlined in
this Request for Proposal and is included as Exhibit 5. As appropriate, each of the
various engineering disciplines shall be included: civil, structural, mechanical,
electrical, and instrumentation. Consultant is encouraged to comment on, to add to
and/or expand on the tasks included in Exhibit 5, Scope of Services, if appropriate,
in making the proposals more complete.
SECTION VII - QUALIFICATION CRITERIA
Prospective firms must meet the following qualification criteria before progressing
any further in the proposal process.
1. Firm(s) must be licensed in their respective fields to operate in the State of
California and have a minimum of five years experience.
2. Firm(s) must have designed within the last five years a minimum of two (2)
similar types of projects.
3. Firm(s) must meet the City insurance requirements, as stated in the attached
Professional Services Agreement. All insurers must be licensed to sell their
specific product in the State of California.
SECTION VIII - SUBMITTAL REQUIREMENTS
Five (5) copies of the following information, one copy of which must be single-
sided and unbound, are requested as part of the submittal requirements. Please
use the following format:
1. Letter of Introduction - Include the respondent's basic understanding of the
proposal; limited to two pages.
2. Project Team — List the proposed project team members, by name and
position, the function each person will perform, and the percent of time each
will spend on this project. Provide resumes for each proposed team member,
including past experience of each team member related to this project.
5,Design RFP-Braddock Lift Station Improvements 1/09
Page 4 of 7
3. A list of sub-consultants, if any, proposed to assist the prime consultant. This
list shall also include the sub-consultants' qualifications pertinent to this
project.
4. The City must approve changes in key personnel subsequent to the award of
the contract.
5. Approach — Describe the firm's approach to Section VI - Scope of Services in
this RFP, as well as the level of involvement and interaction with City staff
anticipated. Also describe what kind of information will be required from City
staff.
6. Experience - Describe the relevant experience of the firm in completing
similar of projects for public agencies. Provide a summary of the stated
experience and outcomes/results accomplished, including a client contact and
phone number.
7. Project Timeline — Detail an anticipated project timeline from start of work to
deliverables of each project phase/milestone.
8. Rates - Provide a not-to-exceed contract amount for the project, cost by each
task listed in Section VI - Scope of Services, and hourly rates for the
personnel assigned to this project.
9. References - Provide at least three (3) references of individuals and/or firms
with whom the Proposer has worked; provide a contact name, position, firm
name, address, telephone and fax numbers. Public Sector references are
required.
10.Provide copies of the design plan, elevations and photo of the two (2) projects
your firm is using to meet Section VII - Qualification Criteria, No. 2. Plans
must be provided on 11" X 17" sheets.
52Design RFP-Braddock Lift Station Improvements 1/09
Page 5 of 7
SECTION IX - DESIGN CONSULTANT SELECTION GUIDELINES
The following criteria will be considered in the evaluation process:
1. Extent and quality of the firm's experience and accomplishments in relevant
projects;
2. Qualifications and experience of the firm(s) and team members assigned to
the project;
3. Quality of Proposal and demonstrated understanding of the project;
4. Record of the consultant in accomplishing work within required time and
budget constraints;
5. Understanding of the approach; tasks, and methodology necessary to
complete the required services;
6. References; and,
7. Geographical location of the design team.
The proposed fee is not intended to be the governing factor in the selection
process but will be considered. The proposed fee must be submitted in a sealed
envelope, separate from the proposal.
While it is the intention of the City to complete the full Scope of Services provided
above in an uninterrupted sequence, the City reserves the right in consultation
with the top candidates to narrow the final scope of services to reflect project
budget constraints. The City also reserves the right to suspend the agreement
upon completion of the alternative analysis.
Interviews will be scheduled with the top candidates. The City in its sole
discretion will determine how many and which firms will be invited to interview.
SECTION X - SOLE AUTHORITY
Rights of Rejection
The City intends to award a contract to the respondent that demonstrates the
highest level of expertise and capabilities to provide the requested services. The
City reserves the right to reject any and all proposals or to re-issue the REP
when such action shall be considered in the best interest of the City.
By submitting a response to this REP, prospective consultants waive the right to
protest or seek legal remedies whatsoever regarding any aspect of this REP. In
addition, the City reserves the right to issue written notice to all participants of
any changes in the proposal submission schedule or submission requirements,
should the City determine in sole and absolute discretion that such changes are
necessary. The City also reserves the right to approve all individuals and firms, if
any, to be retained by the prime consultant. The City's policy is to screen
consultants based upon their proposal and project reference checks.
53Design RFP-Braddock Lift Station Improvements 1/09
Page 6 of 7
SECTION XI - RFP QUESTIONS
Questions regarding this Request for Proposals must be submitted no later than
5:00 p.m. PST on Wednesday, February 4, 2009 by e-mail. Questions should
be submitted to:
Steven.Finton@Culvercity.org
Responses to RFP Questions will be e-mailed only to RFP holders who have
provided an e-mail contact.
SECTION XII - CONTRACT
The lead firm will be required to enter into an agreement with the City of Culver
City prior to commencing work. No selection will be final until an agreement has
been properly executed and signed by the consultant and the City. The terms of
the agreement will include, among other items, insurance requirements
established by the City. A sample form professional services contract is attached
as Exhibit No. 3.
Errors and omissions insurance, specifically and exclusively designated for
development of the site, shall be required of the firm providing professional
design or engineering services for the Project. Such insurance shall provide a
minimum coverage limit per claim of not less than $1,000,000 per
claim/$1,000,000 in aggregate with an additional $1,000,000 in exclusive
coverage to the Project. Such policy may be written on a "claims made" basis
provided it commences as to each named insured upon execution of each
covered contract, continues until Final Completion and includes at least a one
year discovery period after completion of the project.
All firms are required to have Worker's Compensation coverage and General
Liability and Automobile Liability, each with a limit of $1,000,000, naming the City
and Santa Monica Mountains Conservancy as additional insured and provide for
a 30-day notice of cancellation. Additionally, the consultant is also required to
have the insurance company execute the City's Special Endorsement form. A
copy of the Special Endorsement form is attached as Exhibit No. 4. The firm and
all subconsulants must obtain a City of Culver City business tax certificate.
Should the City's relationship with the firm /contractor end during any phase of
the design/construction process the City will retain possession of and exclusive
rights to any drawings and/or documents produced by the consultant.
51Design RFP-Braddock Lift Station Improvements 1/09
Page 7 of 7
SECTION XIII - PROPOSALS DUE
Five copies of the proposal and your proposed fee in a separate sealed envelope
must be submitted by 3:00 pm, February 12, 2009 to the address shown below.
Postmarks will not be accepted in lieu of delivery. Proposals are to be sent to:
Steve FInton
Senior Civil Engineer
Culver City Public Works Department
9505 Jefferson Boulevard
Culver City, CA 90232-0507
All Submittals must, be clearly marked as "Proposal for Professional Services for
the Braddock Sewer Pump Station Improvement, P-521."
City Hall business hours are 7:30 am - 5:30 pm, Monday through Friday, City Hall
is closed alternate Fridays and will be closed on January 16, 2008 and January
30, 2008.
SECTION XIV - FURTHER INFORMATION/CONTACT
Steve Finton, Senior Civil Engineer
(310) 253-6406
EXHIBITS:
1. Location Map
2. Existing Pump Station Plan
3. Existing Pump Station Profile
4. Design Report
5. Scope of Services
6. Sample Contract
55Design RFP-Braddock Lift Station Improvements 1/09
Exhibits
EXHIBIT 'I
LOCATION MAP
56Braddock Pump Station
Braddock Sewer Pump Station and Force Main
Location and Drainage Area 57Design RFP-Braddock Lift Station Improvements 1/09
Exhibits
EXHIBIT 2
EXISTING PUMP STATION PLAN
58DATE strm Dv: 074
BRADDOCK DRIVE
USE P' PAW
DISPOSITION NOTICE
? REMOVE PER SP.
E NE4lOvt PER SPECS am CHANCE
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14.75`ST2A-:77 _ Design RFP-Braddock Lift Station Improvements 1/09
Exhibits
EXHIBIT 3
EXISTING PUMP STATION PROFILE
60V
67
Nra CITY OF CULVER CITY
COMMUNITY DEVELOPMENT
DEPARTMENT
ENSINEERING 1011I5105 .• CULVER CITY, CALIF,
In
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EXHAUST VENT
P. GENERATOR 70 EL IIES TALLE7IV I wEATMER PROOF flfiLOsURE TEE .51E151
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AND LOG OF BORING
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SEHER fORLE mAINDesign RFP-Braddock Lift Station Improvements 1109
Exhibits
EXHIBIT 4
DESIGN REPORT
(47 pages, Please refer to Attachment 2 to the 1/12/09 City Council staff report)
62Design RFP-Braddock Lift Station Improvements 1/09
Exhibits
EXHIBIT 5
SCOPE OF SERVICES
63Exhibit 5 — Scope of Services - Braddock Lift Station Improvements 1/09
Page 1 of 7
EXHIBIT 5
Engineering Design and Construction Support
Services for the Braddock Sewer Pump Station
Improvements, P-521
PROPOSED SCOPE OF SERVICES
The City of Culver City anticipates the following Scope of Services to be
provided by the Consultant in order to fulfill the general requirements of
this RFP. The proposer is encouraged to comment on, to add to and/or
expand on the following tasks if appropriate in making the proposal more
complete.
PHASE I
TASK 1 Research and Investigation
1.1.1 Research, review and verify existing documents including any
available construction plans, specifications, utility information,
existing property boundary legal descriptions or other pertinent
information prepared by the City or others which are related to this
project.
1.1.2 Review of Preliminary Design Report (PDR), entitled "Preliminary
Design Report for Braddock Sewage Lift Station Improvements"
dated December 2008.
1.1.3 Review City operational data, existing facility reports, geotechnical
reports and file information prepared by the City or others to fully
understand the existing or proposed systems operating at the
Braddock Pump Station which are pertinent to this project.
1.1.4 Review of original construction plans and technical specifications
prepared by others for the Braddock Pump Station.
1.1.5 Research of utility records to identify utility constraints, if any
TASK 2 Design Requirements for Upgrade of Braddock Sewer Pump
Station and Concept Plan
1.2.1 The following is a list of design tasks that are anticipated to be
required as part of the Braddock Pump Station facility upgrade work:
61Exhibit 5— Scope of Services - Braddock Lift Station improvements 1/09
Page 2 of 7
A. Analyze, design and provide plans and specifications for the
pump station improvement indicated in Exhibit 4 of the RFP
and as generally described as follows:
1) Construction of a new rectangular wet well adjacent to
the existing dry well.
2) Installation of three new Wemco Hidrostal
submersible pump and motor sets in the new wet well
with required couplings, piping, rails and wiring.
3) Provision of a standby pump and motor unit to be
warehoused for future use.
4) Installation of a pre-rotation basin under one of the
new pumps for the passing of debris and sediment
per VVemco Pump requirements.
5) Conversion of the existing dry well into a valve vault
with new discharge lines, check valves, gate valves
and pressure gages
6) Upgrade or replacement of the existing motor control
center to accommodate the new, larger pumps.
7) Installation of a new flow meter and vault.
8) Installation of new gravity sewers and manholes to
direct flows to the new wet well.
9) Abandonment of existing wet wells and gravity lines to
be removed from service.
10)Upgrade the existing ventilation system to provide a
supply and exhaust fan ventilation system in
conformance with CAL OSHA requirements.
B. Perform a site survey to establish vertical and horizontal
controls necessary to design and construct the project. Dip
sewer manholes as needed to determine pipe invert
elevations and pipe slopes.
C. Prepare details as necessary to complete the equipment
installation.
D. Analyze and design three (3) replacement motor control
centers (Allen-Bradley soft start units) to run each of the
proposed new submersible pumps. Include in the design
provisions to install the new motor control center in the
existing block structure at the station.
E. Analyze and design a new sonic level sensing device for the
wet well. Integrate level control data into the new pump
65Exhibit 5 — Scope of Services - Braddock Lift Station Improvements 1/09
Page 3 of 7
control system. Also provide details and system integration
for an independent back-up float and control system.
F. Evaluate the existing facility electrical service connection for
operation of the new pumps with the existing emergency
back generator and automatic transfer switch.
Analyze and design separate chart recorders for flow meter
and wet well levels. Incorporate with a programmable logic
controller in a new control panel unit that will include an
operator interface unit, an un-interruptible power supply and
radio telemetry system including antenna. The Consultant
shall coordinate with the City's current telemetry provider to
install equipment compatible with the City's citywide
telemetry system.
H. Protect the existing ventilation systems in place.
I. Analyze and provide design details for new pump check and
isolation valves.
J. Analyze and provided design details for a new magnetic flow
meter and integrate into the telemetry system, monitoring
(chart) and control system.
K. Analyze and provide detailed design for any structural
modifications to existing facilities as required to implement
the proposed upgrade improvements.
L. Prepare a traffic control plan according meeting Manual on
Uniform Traffic Control Devices standards (MUTCD, latest
edition) to provide workspace to construct the project and to
safely handle traffic in the project vicinity. It is assumed that
24 hr. lane closures will be required to construct the project.
1.2.2 After independently verifying all site conditions, the Consultant shall
prepare a detailed conceptual (20%) site plan (20 scale maximum)
to fully identify the proposed locations of any improvements on the
Braddock Pump Station site and submit for City acceptance.
Sketches provided in the Preliminary Design Report and/or in
existing record drawings can be the starting point for the conceptual
plan. The Consultant's concept diagram shall display the location
of any new pipelines, existing emergency generator, above ground
structures and other proposed facilities to accommodate new
improvements. Where necessary to show further detail on
66Exhibit 5 — Scope of Services - Braddock Lift Station Improvements 1/09
Page 4 of 7
proposed improvements, utilities or other facilities, adequate cross
sections shall be provided with the concept plan for City review.
1.2.3 A California Registered Electrical Engineer shall perform a
complete review of the existing and proposed new electrical system
requirements and related mechanical systems. Prepare a detailed
diagram showing all recommended electrical and instrumentation
system modifications for City review. With City input, prepare a
specific operation and control analysis of all proposed new systems
to be incorporated into the upgraded Braddock Pump Station
facility. The analysis is intended to identify in advance all
instrumentation, alarm, telemetry and control requirements
necessary for primary and secondary systems in advance of final
design. If necessary, the Consultant's electrical or control system
engineer(s) shall prepare a graphical flow chart of each item
identified and write up a detailed sequential overview of each
control function for review and acceptance by City staff prior to
commencement of final instrumentation design or specification
writing.
1.2.4 The City will contract separately for and will provide the consultant
with a geotechnical report including the following parameters: Soil
Bearing capacity, soil active pressure (top restrained and
unrestrained condition) soil passive pressure, soil friction
coefficient, depth to water table, seismic earth lateral pressure, soil
corrosivity (sulfate and chloride content) and recommendations for
shoring and dewatering during construction.
1.2.5 The Consultant shall assume a minimum of two (2) coordination
meetings will be required during the Phase I activities.
PHASE II
TASK I Final Design and Construction Plans
2.1.1 Upon Consultant receiving a verbal notice to proceed from the City
for Phase II activities, prepare a complete set of biddable and
constructible plans for the lift station as described in Exhibit 4 to the
RFP and as discussed below. The Consultant shall use a
Computer Aided Drafting and Design (CADD) system to prepare
the plans and computer word processing software to assemble the
technical specifications. The construction drawings and
specifications shall be prepared utilizing industry standard.
2.1.2 Final plans shall be drawn on 24" by 36" mylar sheets utilizing City
standard title block to be provided to consultant in digital format.
67Exhibit 5 — Scope of Services - Braddock Lift Station Improvements 1/09
Page 5 of 7
2.1.3 The Standard Specifications for Public Works Construction (latest edition)
shall be used and referenced in the construction specifications wherever
practical. Culver City standard construction drawings (latest edition) shall also be
referenced whenever possible.
2.1.4 Plan sheets shall be prepared to address the following:
• Title sheet
• Master Material List and Construction Notes
• Demolition Plan
• Site Improvement Plan
• Pipeline plans and profiles
• Piping Details and Sections
• Mechanical plans, sections and details
• Structural plans, sections and details
• Electrical plans, single line diagram, conduit schedule
• Instrumentation Plans
• Traffic Control Plans
• Other plans as needed to construct the proposed improvement.
Consultant shall submit two sets of seventy-five (75%), and ninety
percent (90%) plans and specifications to the City for review and
comment. The Consultant shall incorporate any reasonable
comments within the plans and specifications and shall provide the
necessary personnel hours and budget amounts within the fee
estimate for these activities.
TASK 2 Technical Specifications
2.2.1 Preparation of construction specifications shall be prepared by the
consultant and shall specify all materials, equipment and work
indicated in the plans. A detailed operation summary will be
prepared to summarize the station pump sequences and functions.
The specifications shall also address the order of construction,
method of bypass pumping and other temporary measures required
to handle flows coming into the station.
Specifications for the pre-purchase of Wemco pump units and the
prerotation basin shall also be prepared by the consultant to allow
the ordering of pump equipment prior to the bid date.
The City will provide standard contract documents to be
incorporated into the bid package by the consultant
68Exhibit 5— Scope of Services - Braddock Lift Station Improvements 1/09
Page 6 of 7
TASK 3 Engineer's Estimate of Probable Construction Cost
2.3.1 Prepare an engineer's estimate of construction costs for the lift
station upgrade and appurtenant facilities, including any associated
costs. The engineer's estimate shall be prepared using the
individual items broken out in the bid schedule and shall relate to
the actual construction items shown on the plans. The estimate
shall be promptly completed after City has approved the
construction plans and specifications so that this information is
readily available for prospective bidders use.
TASK 4 Project Meetings
2.4.1 Periodically meet with City staff, to discuss project status and
submit preliminary sets of plans and specifications at fifty (50%),
seventy-five (75%) and ninety percent (90%) completion stages for
review and comment by the City. Consultant shall assume four (4)
coordination meetings will be required during the Phase II design
work activities.
TASK 5 Project Deliverables
2.5.1 Upon completion of design activities, provide the City with vellum or
plain paper copy originals (prior to production of mylars at end of
project) of the construction plans and camera ready originals of the
technical specifications for City reproduction, assembly and
bidding. Only after review of draft record drawings shall the
Consultant provide 4 mil double matte photo mylars of the project
plans for City archives. Also provide a compact disk containing all
plans in GADD format. All costs associated with the plotting of
preliminary originals, the printing of in-house and progress plans at
the 75% and 90% stage as well as the 100% final mylar production
and provision of digital drawing files shall be included in the
Consultant's deliverables and/or reproduction budget.
2.5.2 Consultant shall include a budget for reimbursables such as
blueprinting, reprographics, facsimile transmissions, addendum
preparation, expedited mail, copying, deliveries, computer time,
plotter time and automobile mileage.
PHASE III
TASK I Bid Process Coordination
3.1.1 Attend a project pre-bid meeting with the City's staff and general
contractors to provide clarifications for the project. Respond to
bidder's questions during the bid advertisement period and provide
69Exhibit 5 — Scope of Services - Braddock Lift Station Improvements 1/09
Page 7 of 7
information and clarification of construction documents to
prospective bidders including and preparation of complete addenda
documentation as required for City issuance and distribution.
TASK 2 Shop Drawing Review
3.2.1 Provide shop drawing review and any necessary plan revisions and
processing services during construction of the Braddock Pump
Station improvements and for all other aspects of the project. The
Consultant shall budget for the review and acceptance of at least
thirty five (35) shop drawing submittals for the lift station equipment
and all appurtenances. If the Consultant anticipates that more shop
drawing submittals than the number stated above will be required,
the fee estimate shall reflect the time required to review and
process the quantity of submittals estimated by the Consultant.
Consultant shall include in his budget an adequate fee amount to
perform a second review of each shop drawing submittal.
TASK 3 Construction Engineering Support Services
3.3.1 Provide engineering support services during construction in
response to requests for information or clarification from City staff
or for field coordination activities. The Consultant shall also provide
a budget of 24 hours of staff time during construction for
clarifications and minor plan revisions to the construction drawings.
Three site visits for the structural engineer's review of the
construction improvements at three hours per visit. Three (3) site
visits of three hours each should also be budgeted for by the
Consultant. Additional budget should be included for three (3) site
visits of four (4) hours each during project start up activities. Site
visits will be requested by City staff on an as needed basis.
TASK 4 Record Drawings
3.4.1 Consultant shall provide a budget of 16 hours for preparation of
record drawings for any field or other revisions to the original plan
package by the Contractor. City Inspectors, the Contractor or
Consultants field staff shall provide data for completion of the
record drawings. Drafts of record drawings shall be reviewed by
the City staff and upon acceptance, the Consultant shall provide
mylar originals and a computer compact disk(s) of the plans as
defined in Task 2.5.1.
70Design RFP-Braddock Lift Station Improvements 1/09
Exhibits
EXHIBIT 6
SAMPLE CONTRACT
77Contract No.
CITY OF CULVER CITY
STANDARD FORM CONTRACT
WITH:
FOR:
THIS AGREEMENT is made and entered into by and between THE CITY OF
CULVER CITY, a municipal corporation, hereinafter referred to as "City," and
, a (California corporation, partnership,
sole proprietorship) hereinafter referred to as "Consultant."
1. CONSULTANT'S SERVICES. Consultant agrees to perform, during the
term of this Agreement, the tasks, obligations, and services set forth in the
"Scope of Service" attached to and incorporated into this Agreement as
Exhibit "A."
2. TERM OF AGREEMENT. The term of this Agreement shall be from the
effective date pursuant to Paragraph 27 of this Agreement and shall end
upon (DATE CERTAIN OR SATISFACTORY COMPLETION OF THE
WORK, AS REASONABLY DETERMINED BY CITY'S
3. PAYMENT FOR SERVICES. City shall pay for the services performed by
Consultant pursuant to the terms of this Agreement, the compensation set
forth in the "Schedule of Compensation" attached to and incorporated into
this Agreement as Exhibit "B." The compensation shall be paid at the time
and manner set forth in said Exhibit "B."
4. TIME FOR PERFORMANCE. Consultant shall not perform any work
under this Agreement until (a) Consultant furnishes proof of insurance as
required under Paragraph 7 of this Agreement; and, (b) City gives
Consultant a written and signed Notice to Proceed.
5. DESIGNATED REPRESENTATIVE(S), shall be
the designated Consultant Representative, and shall be responsible for
job performance, negotiations, contractual matters, and coordination with
the City. Consultant Representative shall actually perform, or provide
immediate supervision of Consultant's performance of, the Scope of
Service.
6. HOLD HARMLESS. To the fullest extent permitted by law, Consultant
shall indemnify, defend (at Consultant's sole expense, with legal counsel
approved by CITY) and hold harmless the City of Culver City, members of
its City Council, its boards and commissions, officers, agents, and
72
Page 1employees (hereinafter, "Indemnitees"), from and against all loss,
damage, cost, expense, liability, claims, demands, suits, attorneys' fees
and judgments arising from or in any manner connected to Consultant's or
its employees or agent's wrongful or negligent acts, errors or omissions
related to this Agreement. This indemnification includes, but is not limited
to, tort liability to a third person for bodily injury and property damage.
Consultant agrees that this obligation to indemnify, defend and hold
harmless extends to liability and/or claims arising from INDEMNITEES'
active or passive negligence.
Notwithstanding the foregoing, nothing herein shall be construed to
require Consultant to indemnify an Indemnitee from any claim arising
from the sole negligence or willful misconduct of that lndemnitee.
The duty to defend referenced herein is wholly independent from the
duty to indemnify, arises upon written notice by City to Consultant of a
claim within the potential scope of this indemnification provision, and
exists regardless of any determination of the ultimate liability of
Consultant, City or any lndemnitee.
7. INSURANCE. Without limiting its obligations pursuant to Section 6 of
this Agreement, the Consultant shall procure and maintain, at Consultant's
own cost and expense and for the duration of this Agreement, insurance
coverage as set forth in "Insurance Requirements" attached to and
incorporated into this Agreement as Exhibit "C."
8. INDEPENDENT CONSULTANT STATUS. City and Consultant agree that
Consultant, in performing the services herein specified, shall act as an
independent Consultant and shall have control of all work and the manner
in which it is performed. Consultant shall be free to contract for similar
service to be performed for other employers while under contract with City.
Consultant is not an agent or employee of City, and is not entitled to
participate in any pension plan, insurance, bonus, worker's compensation
or similar benefits City provides for its employees. Consultant shall be
responsible to pay and hold City harmless from any and all payroll and
other taxes and interest thereon and penalties therefor which may become
due as a result of services performed hereunder.
9. NON-APPROPRIATION OF FUNDS. Payment due and payable to
Consultant for current services is within the current budget and within an
available, unexhausted and unencumbered appropriation of City. In the
event City has not appropriated sufficient funds for payment of Consultant
services beyond the current fiscal year, this Agreement shall cover only
those costs incurred up to the conclusion of the current fiscal year.
10. ASSIGNMENT. This Agreement is for the specific services with
Consultant as set forth herein. Any attempt by Consultant to assign the
benefits or burdens of this Agreement without written approval of City shall
Page 2
73be prohibited and shall be null and void; except that Consultant may
assign payments due under this Agreement to a financial institution.
11. RECORDS AND INSPECTIONS. Consultant shall maintain full and
accurate records with respect to all services and matters covered under
this Agreement. City shall have free access at all reasonable times to
such records, and the right to examine and audit the same and to make
transcripts therefrom, and to inspect all program data, documents,
proceedings and activities. Consultant shall maintain an up-to-date list of
key personnel and telephone numbers for emergency contact after normal
business hours.
12. OWNERSHIP OF CONSULTANT'S WORK PRODUCT. City shall be the
owner of any and all computations, plans, correspondence and/or other
pertinent data, information, documents and computer media, including
disks and other materials gathered or prepared by Consultant in
performance of this Agreement, or at any earlier or later time when the
same may be requested by City. Such work product shall be transmitted
to City within ten (10) days after a written request therefor. Consultant
may retain copies of such products. All written documents shall be
provided to City in digital and in hard copy form.
13. NOTICES. All notices given or required to be given pursuant to this
Agreement shall be in writing and may be given by personal delivery or by
mail. Notice sent by mail shall be addressed as follows:
To City:
To Consultant:
City of Culver City
Attention: 9770 Culver Boulevard
Culver City, CA 90232-0507
14. TAXPAYER IDENTIFICATION NUMBER. Consultant shall provide City
with a complete Request for Taxpayer Identification Number ("TIN") and
Certification, Form W-9, as issued by the Internal Revenue Service.
15. PERMITS AND LICENSES. Consultant, at its sole expense, shall obtain
and maintain during the term of this Agreement, all appropriate permits,
licenses, and certificates that may be required in connection with the
performance of services under this Agreement including, but not limited to,
a Culver City business tax certificate.
16. APPLICABLE LAWS, CODES AND REGULATIONS. Consultant shall
perform all work in accordance with all applicable laws, codes and
regulations required by all authorities having jurisdiction over such work.
71
Page 3Consultant agrees to comply with prevailing wage requirements as
specified in the California Labor Code, Sections 1770, et seq.
17. PURCHASES OF SUPPLIES AND MATERIALS WITHIN CULVER CITY.
For work performed, Consultant agrees to seek bids for supplies and
materials from businesses located within the City of Culver City, with the
intent to make purchases from these businesses if such purchases can be
made at competitive prices.
18. RIGHT TO UTILIZE OTHERS. City reserves the right to utilize others to
perform work similar to the services provided hereunder.
19. MODIFICATION OF AGREEMENT. This Agreement may not be
modified, nor may any of the terms, provisions or conditions be modified
or waived or otherwise affected, except by a written amendment signed by
all parties hereto.
20. WAIVER. If at any time one party shall waive any term, provision or
condition of this Agreement, either before or after any breach thereof, no
party shall thereafter be deemed to have consented to any future failure of
full performance hereunder.
21. COVENANTS AND CONDITIONS. Each term and each provision of this
Agreement to be performed by Consultant shall be construed to be both a
covenant and a condition.
22. RIGHT TO TERMINATE. City may terminate this Agreement at any time,
with or without cause, in its sole discretion, with thirty-days' (30-days')
written notice.
23. EFFECT OF TERMINATION. Upon termination as stated in Paragraph 22
of this Agreement, City shall be liable to Consultant only for work
satisfactorily performed by Consultant up to and including the date of
termination of this Agreement, unless the termination is for cause, in which
event Consultant need be compensated only to the extent required by law.
Consultant shall be entitled to payment for work satisfactorily completed to
date, based on a proration of the monthly fees set forth in Exhibit "B"
attached hereto. Such payment will be subject to City's receipt of a close-
out billing.
24. GOVERNING LAW. The terms of this Agreement shall be interpreted
according to the laws of the State of California. If litigation arises out of
this Agreement, then venue shall be in the Superior Court of Los Angeles
County.
25. LITIGATION FEES. If litigation arises out of this Agreement for the
performance thereof, then the court shall award costs and expenses,
including attorney's fees, to the prevailing party. In awarding attorney's
fees, the court shall not be bound by any court fee schedule but shall
Page 4
75award the full amount of costs, expenses and attorney's fees paid or
incurred in good faith.
26. INTEGRATED AGREEMENT. This Agreement represents the entire
Agreement between City and Consultant regarding the subject matter
hereof, and all preliminary negotiations and agreements are deemed a
part of this Agreement. No verbal agreement or implied covenant shall be
held to vary the provisions of this Agreement. This Agreement shall bind
and inure to the benefit of the parties to this Agreement, and any
subsequent successors and assigns.
27. EFFECTIVE DATE. The effective date of this Agreement is the date it is
signed on behalf of City, and shall remain in full force and effect until
amended or terminated; provided, that the indemnification and hold
harmless provisions shall survive the termination.
NAME OF CONSULTANT, TYPE
Dated: By Its
Dated: By Its CITY OF CULVER CITY, CALIFORNIA
By Jerry Fulwood
City Manager
Dated:
(Signatures continued on Page 6)
76
Page 5(Signatures continued from Page 5)
APPROVED AS TO CONTENT: APPROVED AS TO FORM:
NAME
Carol A. Schwab
TITLE
City Attorney
APPROVED AS TO FINANCING: APPROVED AS TO BUSINESS
TAX CERTIFICATE:
Jeff Muir Treasury Division
Chief Financial Officer
Page 6
77Contract No.
EXHIBIT A
CITY OF CULVER CITY
AGREEMENT
WITH:
FOR:
SCOPE OF SERVICE
(This exhibit should provide a complete description of each work task. If more
than one work task is to be performed, describe and number each work task
separately. If the objective is to be a completed study, describe what is expected
to be accomplished. Include any mandatory approaches to the problem, or task,
and specific limitations, along with a Work Schedule showing timelines for
completion of the various tasks and of the entire job. At the very least, this
exhibit should address and answer the following questions: WHAT is the nature
and purpose of the overall project and WHAT specific tasks and services is the
CONSULTANT going to perform to complete the job? WHERE is the work going
to be performed? WHEN is the work to be performed? HOW is the work going
to be performed?)
78
PAGE 1 ofContract No.
EXHIBIT B
CITY OF CULVER CITY
AGREEMENT
WITH:
FOR:
SCHEDULE OF COMPENSATION
(TIME AND MATERIALS BASIS)
A. METHOD OF PAYMENT. Payment for all work performed by Consultant
pursuant to the terms of this Agreement, including Consultant's meeting with
City staff, shall be made on the basis of the hourly rates set forth below,
plus actual out-of-pocket costs incurred in performing the work:
PERSONNEL RATE PER HOUR
Consultant agrees to discount the amount owed by 2% if payment by City is
made within ten days after receipt of the invoice.
B. BILLING. At the end of each calendar month in which services are
performed or expenses are incurred under this Agreement, and prior to the
10th day of the following month, Consultant shall submit an invoice to the
City at the following address:
City of Culver City
Attn: 9770 Culver Boulevard
Culver City, CA 90232-0507
The invoice submitted pursuant to this paragraph shall show the City
Agreement Number, hours worked by each person who performed services
during the billing period, the hourly rate of pay for each person who
performed services, the dates on which the services were performed, a
description of the services performed, actual out-of-pocket expenses
incurred in the performance of the services, and such other information as
City may reasonably require.
EXHIBIT B
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7980
EXHfBIT B
PAGE 2 OF 2
Contract No.
C. TIME OF PAYMENT. Payment to Consultant shall be made within thirty
(30) days after submittal of Consultant's invoice and approval by City, in
accordance with City's normal demand procedure.
D. MAXIMUM COMPENSATION. Notwithstanding the foregoing, Consultant
shall complete all the work and tasks described in Exhibit A for a total
amount of compensation that does not exceed $ , which
amount includes all out-of-pocket expenses.EXHIBIT C
CITY OF CULVER CITY
AGREEMENT
WITH: FOR:
INSURANCE REQUIREMENTS
A. Prior to commencing operations pursuant to this Agreement, Consultant
shall submit duly executed certificates of insurance for the following:
1. An occurrence-based Comprehensive General Liability ("CGL")
policy, at least as broad as ISO Form CG 001, in the minimum
amount of one million dollars ($1,000,000) each occurrence, with not
less than two million dollars ($2,000,000) in annual aggregate
coverage. The CGL policy shall meet the following requirements:
a. The policy shall provide coverage for personal injury, bodily
injury, advertising injury, death, accident and property
damage, not excess or contributing with respect to self-
insured retentions or pooled risk arrangements, as those
terms are understood in the context of a CGL policy;
b. The policy shall provide coverage for owned, hired and non-
owned automobile liability;
c. The policy shall include coverage for liability undertaken by
contract covering, to the maximum extent permitted by law,
Consultant's obligation to indemnify the Indemnitees as
required under Section 6 of the Agreement;
d. The policy shall not exclude coverage for Completed
Operations Hazards or Athletic or Sports Participants; and,
e. The City of Culver City, members of its City Council, boards &
commissions, officers, agents and its employees will be
named as additional insureds in an endorsement to the policy,
which shall be provided to the City and approved by the City's
City Attorney.
2. Business Automobile Liability Insurance in the minimum amount of
one million dollars ($1,000,000) each occurrence, with not less than
two million dollars ($2,000,000) in annual aggregate coverage.
EXH1BJT C
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8782
EXHIBIT C
Page 2 of 2
3.
Professional Liability Insurance in the minimum amount of one million
dollars ($1,000,000) per occurrence, with the following requirements:
a. The policy shall provide that defense costs are not included
within the policy limits;
b. The policy, shall include coverage for separate "personal
injury" alleged to have been committed in the course of
rendering professional services.
4. Workers' Compensation limits as required by the Labor Code of the
State of California with Employers' Liability limits of one million
dollars ($1,000,000) per accident.
B. City may waive one or more of the coverages listed in Section A., above.
This waiver must be express and in writing, and will only be made upon a
showing by the Consultant that its operations in and with respect to City are
not such as to impose liability within the scope of that particular coverage.
C. Additional insurance requirements:
1. All insurance listed in Section A., above, shall be issued by
companies licensed to do business in the State of California,
with a claims paying ability rating of "BBB" or better by S&P
(and the equivalent by any other Rating Agency) and a rating
of A:VI' or better in the current Best's Insurance Reports;
2. Consultant shall provide City with at least thirty (30) days' prior
written notice of any modification, reduction or cancellation of
any of the policies required in Section A., above ;
3. City may increase the scope or dollar amount of coverage
required under any of the policies described in Section A.,
above, upon prior written notice to Consultant.
City may increase the dollar amount of coverages under any of the policies
described in Section A., above, upon prior written notice to Consultant.