City Council

Agenda Request

Agenda Of:

10-20-09

Agenda Request No:

vi-b

Initiated By:

Jessie Li, Assistant Utilities Director

Responsible Department:

Utilities

Presented By:

Jessie Li, Assistant Utilities Director

Department Head:

Suellen Staggs, Director of Utilities

 

 

Additional Department. Head (s):

Christopher Steubing,PE

City Engineer

Subject / Proceeding:

Authorize Professional Service Contract for the Surface Water Treatment Plant Final Engineering Design- CIP SW0802

Exhibits:

Professional Service Contract Between The City And CDM, Inc.

Clearances

Approval

Legal:

Eugenia Cano, Assistant City Attorney

Executive Director:

N/A

Purchasing:

n/a

Asst. City Manager:

Karen Daly  

Budget:

Jennifer Brown

Budget & Research Director

City Manager:

Allen Bogard  for AB

Budget

Expenditure Required:  $

4,296,000

Current Budget:  $

5,200,000

Additional Funding:  $

0

Recommended Action

Authorize the execution of a professional service contract between the City and CDM, Inc. for the final engineering design services of the City’s Phase I Surface Water Treatment Plant in the amount not to exceed $4,296,000.

Executive Summary

To meet the Fort Bend Subsidence District (FBSD) regulations, the City of Sugar Land’s approved Groundwater Reduction Plan (GRP) outlines the City’s planned strategies for meeting the FBSD’s timeline for our mandated conversion to non-groundwater sources. As indicated in the GRP, the City will construct a surface water treatment plant (SWTP) adjacent to Oyster Creek and Gannoway Lake to implement the phased conversion. The SWTP will be constructed for an initial production capacity of 9.0 million gallons per day (MGD), with capability for future expansion to 22.0 MGD.

 

The preliminary engineering design and the pilot plant treatability study for the Phase I SWTP were recently completed by the CDM and Malcolm Pirnie team. An update on the SWTP Preliminary Engineering Report (PER) was provided to the City Council in the workshop conducted on July 7, 2009. The PER completed the following major tasks:

 

·         Source water quality monitoring

  • Treatability study and treatment process selection
  • TCEQ required membrane testing
  • Taste and odor control study
  • Groundwater and surface water blending study
  • Surveying and preliminary geotechnical analysis
  • Environmental & Archeological Services
  • Preliminary Engineering Design up to 30% completion

 

The CDM and Malcolm Pirnie team was selected for the PER and final design services through a Request for Qualification (RFQ) process. We recommend continuing to utilize the CDM and Malcolm Pirnie team for the SWTP final design. The scope of work for the final design engineering services will include raw water storage forebay, raw water intake, pre-oxidation, flash mix, flocculation, and plate settler pre-treatment processes, membrane filtration, granular activated carbon, ground storage tank, finished water pump station, chemical storage and feed facilities, sludge processing facilities, and returned flow pump stations. The project will also include the design of the administration building, operation and maintenance building, electrical power substations, backup power generators, and all appurtenances necessary to make the SWTP a complete and operable system meeting preset treated water quality goals. The major basic service tasks in the scope of work for Final Design are listed below:

 

  • Design to 100%, including design drawings and specifications ready to bid
  • EPA & TCEQ required LT2 source water monitoring service
  • Design phase geotechnical analysis
  • Additional survey, wetland delineation, and archeological investigation of property acquired
  • O&M guide development
  • Vulnerability assessment
  • Storm water pollution prevention plan
  • Electrical circuit study and motor starting study for 4,160 V service
  • Landscaping and irrigation plan
  • Architectural services
  • Obtain TCEQ’s approval on the final design

 

 

 

The final design is anticipated to be completed by October 1, 2010, which will result in approximately 550 sheets of engineering design drawings. The total engineering services fee of $4, 296,000 includes basic services ($3,678,150) as listed above and additional services ($617,850) as listed below:

 

·       Constructability review with build team partner

·       Construction cost estimates at design milestones

·       USACE individual permit (if required)

·       Bid phase reproduction

·       Bid phase services

·       Conformed drawing sets for build team

 

The additional service needs will be determined in conjunction with the Construction Manager at Risk (CMAR) and will be authorized item by item on an as needed basis. The design fee with all additional services is approximately 9% of the estimated construction cost, which is within the normal range for this type of engineering services. Funding is available for this contract in CIP SW0802.

 

The Utilities Department recommends the City Council authorize the contract in an amount not to exceed $4,296,000 with CDM, Inc.

Exhibits