CR2002-163 engineering services agreement lift station 7
CITY OF"
~
. October 10, 2002 NOPKINS Council Report 02-163
Approve Engineering Services Agreement-
Reconstruct Sanitary Sewer Lift Station # 7
Proposed Action.
Staff recommends adoption ofthe following motion: Move that Council authorize the
Mayor and City Manager to enter into an agreement with SEH for engineering services
related to Lift Station #7 reconstruction.
Overview.
Lift Station #7 is located at 801 6th Avenue South. This lift station is the largest sanitary
sewer lift station in the system. The station is a 30-year-old wet well/dry well confined
space design in generally poor condition with obsolete equipment components. The
station is in need of reconstruction.
The current CIP Project # OI-CIP-U001 is scheduled for the 2003 time frame and has a
budget of $500,000 as identified in the CIP.
The project is being moved up to 2003 because of the inspection that was completed this
summer. The equipment was found to be in worse condition than anticipated and the
equipment has no replacement parts because the equipment is obsolete.
The funding source is the sanitary sewer utility fund, which has adequate funds to cover
. the project. The new station will be completed along side of the old station and when the
new station is completed the old station will be removed from service. The old station
will be retro fitted with new equipment and be used as an emergency back-up station.
Primary Issues to Consider.
. Consultant Selection.
Due to the critical importance of this lift station staff prefers to use a consultant with
exceptional experience in lift station reconstruction. SEH designed the reconstruction of
lift stations # 4 & # 5 and our Utility Division Staff is confident working with the SEH
project team
. SEH Proposal.
SEH will prepare a preliminary design report, the fee for these services total $31,508.
The steps used during the preliminary design report are necessary to enable the city to get
the most reliable, cost effective design approach. Once the report is completed and
approved, SEH will furnish a proposal to prepare the final design. The analysis and
drawings developed in the preliminary design report will be used to complete the final
design phase thus saving both time and money.
. Staff recommendation
Staff recommends approval of the SEH proposal and engineering services agreement.
Supporting Information.
. Engineering Services agreement
. . CIP Project Sheet
Mich el G. Lauseng, Utility Superinte
.~SeJ 10901 Red Circle Drive, Suite 200, Minnetonka, MN 55343-9301 952.912.2600 952.912.2601 FAX
architecture engineering . environmental . transportation
. September 27, 2002 RE: Hopkins, Minnesota
Proposal for Professional Services
Lift Station No. 7 Replacement
SEH No. P-HOPKN0301.00
Mike Lauseng
Utility Superintendent
City of Hopkins
1010 First Street South
Hopkins, MN 55343
Dear Mike:
Short Elliott Hendrickson Inc. (SEH) is pleased to submit this proposal for the subject project. Our
meeting and site visit with you and your staff was extremely helpful. In general, we understand the
project objective is to design a new wastewater pump station near existing Lift Station No.7 and
make operational with minimal service down time in connecting it to existing gravity mains and
forcemains. Once the new pump station is operational, City forces will rehabilitate the existing
pump station and maintain it as a backup facility.
. The following key issues were discussed at our site visit and with Mr. Steve Stadler:
1. Determine the number of pumps and storage capacity for efficient operations.
2. Determine electrical power requirements if served from the existing building and conduct a
space analysis for new electrical equipment and its location.
3. Detennine options for housing new electrical equipment to include a building addition and
how it fits the site and surrounding uses.
4. Determine if existing SCADA system has capacity for new pump station.
5. Evaluate methods of wet well construction in the deep organic soils with high groundwater.
6. Evaluate options for structural support of the pump station, structures, building addition and
pipe systems.
7. Evaluate dewatering impacts to existing structures and new construction.
8. Evaluate options on how dual inlets and forcemain cOlmections can be designed to allow
either the new or existing pump station to operate.
9. Evaluate the most cost -effective combination of initial cost and long term operational
efficiency.
10. Evaluate the existing lift station condition and prepare a cost estimate to upgrade the pumps
and piping, access, electrical equipment and cost to provide the use of the existing lift station
to be a back-up lift station and/or use if required as an automatic peak instantaneous reliever
. to pump sanitary sewage.
Short Elliott Hendrickson lac. . Your Trusted Resource . Equal Opportunity Employer
Mike Lauseng
September 27, 2002
Page 2
. It was mutually agreed that the best approach to designing a replacement for Lift Station No.7
would begin with the preparation of a preliminary design report. The report would include a study
of the key issues, the cost associated with them and recommendations on how to proceed with the
final design. The steps used during the preliminary design report are necessary to enable the city to
direct the final approach. Once the report is completed and approved, we will furnish you with a
proposal to prepare final design. The analysis and drawings will be prepared with the intention of
their use in the final design phase thus saving both time and expenses.
The proposed scope of work has been organized into sections titled Lift Station Design, Structural,
Electrical and Architectural. The detailed tasks are included in each section.
New Lift Station Design
The lead study effort will be provided in this section and includes the coordination with the
structural, electrical, process piping and controls and architectural elements of the study. The scope
of work proposed in this section is as follows:
I. Data collection.
2. Assistance with obtaining geotechnical proposals.
3. Site topographic survey.
4. Hydraulic analysis for 2 pump and 3 pump options utilizing the existing forcemain.
5. Structure layout and wet well sizing for 2 or 3 pump options utilizing the existing forcemain.
. 6. Piping and valve manhole layout options.
7. Coordination of electrical, structural and architectural elements.
8. Preliminary site plan preparation.
9. Construction cost estimating.
10. Review preliminary findings with staff at 60% complete.
II. Prepare draft report and review with staff.
12. Prepare final report.
13. Present report to City Council.
New Electrical
The electrical scope of work is detailed in the following tasks:
I. Determine new load requirements.
2. Determine existing load which will remain in service.
" Determine actual amperage load of existing 75 HP pump motors.
.J.
4. Electrical service from utility company.
a. Determine if existing service is adequate for new loads.
. b. Determine if new service entrance equipment is required.
Mike Lauseng
September 27, 2002
Page 3
. 5. Generator set
a. Detem1ine if existing generator will supply new load.
b. Determine if existing generator will supply new load and existing load which may
remain in service.
c. Determine if a new generator is required or the operational constraints in keeping the
existing generator.
6. Control system
a. Determine automated control system for new lift station.
b. Make recommendation on feasibility of adjustable frequency drives for pumps based
on potential energy savings.
c. Investigate feasibility of one control system for new pumps and backup pumps if they
remain in service. Evaluate existing SCADA system for new lift station operation.
d. Evaluate existing SCADA system for new lift station operation.
1.) Add additional I/O to accommodate new equipment.
2.) Replace existing terminal blocks with high density terminal blocks.
3.) Relocate antelma as required.
. e. Add alann switch in existing dry pit.
f. Recommend alternative to air bubbler for level control.
7. Space analysis
a. Determine space required for any additional electrical equipment and assist in floor
plan layout.
b. Make recommendations for additional electrical equipment to be installed outdoors in
appropriate enclosures or indoors in a new building.
8. Construction cost estimate.
9. Meet with staffto review findings.
10. Prepare electrical section of Study Report.
Structural- New Lift Station
The structural scope of work is detailed in the following tasks:
1. Review existing drawings.
2. Preliminary analysis oftype of lift station and valve pit structures (precast, pour in place).
3. Drilled or open cut construction (dewatering).
4. Foundations, mat footings, piling, caissons.
. 5. Evaluate addition to existing building to accommodate new structure, foundations, walls and
roof.
.- - ---
Mike Lauseng
September 27, 2002
Page 4
. 6. Construction cost estimating.
7. Meeting with staff.
8. Prepare structural section of Study Report.
Architectural- New Lift Station
The architectural scope of work is detailed in the following tasks:
Design Input
l. Gather Background Information
a. Review project needs & basic plan layout concerns.
b. Review existing conceptual ideas. Pros and cons on adding public amenities to new
structure.
c. Review Stakeholder issues.
d. Coordinate city guidelines with Lift Station Concept Plan.
2. Gather Site Background Infoffi1ation (minimal effort because most site plan/issues has been
established)
.., Regulatory Reviews
..J.
a. Determine regulatory agencies and permitting requirements for building addition.
. Design Concept
1. Develop concept designs to include a metal roof system similar to the recently constructed
water system pump station based on kickoff meeting.
'I Review concepts and cost estimates with staff.
.., Revise concept based on input as needed.
..J.
4. Review revised concepts and cost estimates to finalize concept design.
5. Prepare architectural section of Study Report.
Existing Lift Station Evaluation Methodology
The goal is to provide recommendations and cost to retrofit the existing lift station to operate
automatically in case of high flows or power outage to proposed new lift station.
1- Obtain and review existing documents:
a. Review project specifications, as-built construction drawings, shop drawings, soil
reports, other pertinent information that is available.
2. Site visits (three) and testing:
a. Observe conditions of existing drywell.
b. Observe quality of blowers/fresh air intal:es, electrical and controls.
. c. Observe safety conditions and compare to current standards.
-- -- - ----- . -----.---...
Mike Lauseng
September 27,2002
Paae 5
b
. d. Test for oxidation of existing steel structure.
e. Test for concrete deterioration.
f. Test for soil resistively.
3. Prepare written report to answer afore stated goals.
a. Outline findings.
b. Outline recommendations.
c. Provide cost to retrofit existing lift station.
Summary of Professional Services
The proposed fee of $31,508 is our estimate of the maximum cost to the City based on the
negotiated scope of work and our experience in past projects of this size and complexity. We will
advise you if any aspect of the study requires additional investigation and receive your authorization
for any added costs prior to proceeding.
We propose to bill monthly on an hourly basis in accordance with the attached hourly rate schedule
plus customary reimbursable expenses.
Professional Labor Hours Total
Principal 15 $2,100
. Project Manager 30 $3,750
Project Engineer 35 $2,975
Electrical Engineer 40 $4,657
Structural Engineer 48 $5,760
Senior Architect 18 $2,340
Staff Architect 46 $3,036
Technician 35 $2,729
Survey Crew Chief 16 $1,472
Survey Assistant 16 $1,024
Administrative Assistant 16 $960
Total Estimated Professional Labor $30,803
Reimbursable Expenses
Mileage $450
Survey Equipment $180
Graphics Printing $75
Total Reimbursable Expenses $705
Total Estimated Fee $31,508
Note: Field testing such as corrosion evaluation (steel and concrete), soils, block, brick, mortar (if
. deemed necessary) will be extras and coordinates between City and testing laboratory.
Mike Lauseng
September 27,2002
Page 6
. Schedule
The following preliminary schedule has been prepared with the understanding that the project will
be constructed in 2003.
Activity Milestone
City Cmmeil Authorize Study October 16.2002
I
City obtain Geotechnical Report October 25, 2002
Review preliminary fmdings with Staff November 15,2002
Complete Report and Present to City Council December 17, 2002
City Council Authorize Preparation of Final Plans January 7, 2003
Council Accepts Final Plans and Authorize Ad for Bid March 4, 2003
Receive Bids and Award Contract April 15, 2003
Begin Construction May 5, 2003
Substantial Completion September 26, 2003
Project Team
. The SEH project team selected has the experience and project understanding to thoroughly and
efficiently study the complex issues and recommend solutions that will provide a cost effective and
safe facility for operations and maintenance personnel.
Dave Halter, P.E., will be assigned as the Client Service Manager and will be responsible for every
facet of SEE services meeting Hopkins expectations and complete satisfaction. Dave is a fanliliar
face around Hopkins.
Richard C. Potz, Principal, will be assigned as the Project Manager responsible for the
preliminary design and coordination of the project team. Richard has extensive experience in the
design of wastewater pump stations and has completed numerous projects in Hopkins over his
career.
Gary Schacht, P.E., will be assigned as the Electrical Task Manager responsible for all study work
related to power, controls, standby power and building electrical systems. Gary has over 20 years
experience in these types of facilities. His resume is included in the Appendix.
Harry Koutsoumbos, P.E., will be assigned as the Structural Task Manager responsible for the
evaluation of suitable structure and foundation types dictated by the soil conditions. Harry has over
35 years experience in the study, design, and construction of similar facilities. His resume is
included in the Appendix.
Nancy Schultz, AlA, will be assigned as the Architectural Task Manager responsible for directing
the building addition and roof studies. Nancy developed programming documents for the Public
Works and Fire Station facilities and is familiar with local codes and design preferences.
.
Mike Lauseng
September 27, 2002
Page 7
. We greatly appreciate this opportunity to work with you and your staff on this most challenging of
projects. We are available to answer any questions or comments at your convenience.
S incere1 y ,
RT ELLIOTT HENDRICKSON INC.
c~(L -
-
avid C. Halter, P.E. Richard C. Potz
Client Service Manager Principal, Project Manager
ka
Enclosures
c: Steve Stadler, City Engineer
Gary Schacht, SEH
Harry Koutsoumbos, SEH
Nancy Schultz, SEH
h:\civi ~\propo.=;al\h(Jpkj m.\hopkn030 j \prop lIT .doc
.
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CAPITAL PLAN 2003 thru 2007
Cont~ct PW Director
City of Hopkins, MN Department Public Works: Utilities
. l'ruject# Ol-CIP-UOOl Type Improvement
Useful Life
Project l\:llUe Reconstruct sanitary sewer Lift Station #7 C:ltegory Utilities: Municipal Sanilary S
Priority ola
Total Project Cost $500,000
Description
---.-. -.
Lift Station #7. Valley Park (South end or 6th Avenue South)
Reconstruct and repair Uft Station #7
Justification
Reconstruction necessary due to safely concerns, to improve reserve capacity and general condition.
Expenditures 2003 2004 2005 2006 2007 Total
Cons tru ctlonJMainte n ance 500,000 500,000
Total 500,000 500,000
.
Funding Sources 2003 2004 2005 2006 2007 Total
SF - Sanitary Sewer Fund 500,000 500.000
Total 500,000 500,000
Operational Impact/Other
- ..
PruJected schedule: UII Station #7
2003: Plans and specifications
2004: Bill and construction
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