ITEM 6-L

Council Meeting: July 11, 1989           Santa Monica, California

TO:       Mayor and City Council

FROM:     City Staff

SUBJECT:  Recommendation  to  Amend  the  Professional   Services
          Contract  with Kennedy/Jenks/Chilton for  the Design of
          Additional Treatment  Capacity for  the Domestic  Water
          Supply System.

INTRODUCTION

This report requests the City Council authorize the City  Manager
to  execute an  amendment to  the professional  services contract
with   Kennedy/Jenks/Chilton   (K/J/C)   to   include  additional
engineering work on  the  water  treatment  plant  expansion  and
upgrading  as  required  by  the  South Coast Air Quality Control
Board (SCAQCB).

BACKGROUND

On  November  11,  1986,  the  City  Council  authorized the City
Manager to negotiate and execute a professional services contract
with  K/J/C  in  the  amount  of  $182,000  for  the design of an
aeration facility  and the expansion of  the City water softening
plant.  Both improvements will allow the City of Santa Monica  to
produce and treat additional local ground water, thereby reducing
the City's dependency on the Metropolitan Water District (MWD).

In  February  1988,  City  staff  submitted designs to SCAQCB for
their review.   Based upon changes in  design and test procedures
required by SCAQCB during  the permitting process, several  items
must be added to the final design contract.  These items include:

A.   Additional modifications of facilities           $  64,000

     Due to emission controls established by SCAQCB, an activated
     carbon absorption  system will be  constructed.  The system,
     will remove  the carbon  vapors before  they are  discharged
     into the atmosphere.

B.   Pilot study                                      $  30,000

     A pilot study will be  performed to evaluate and verify  the
     effectiveness of  carbon vapor  removal by  surface aeration
     and to confirm the necessary air flow requirements.

C.   Geotechnical sampling and testing                $  12,000

     For the final design and construction of the softening plant
     expansion,  the   existing  soil   conditions  need   to  be
     determined.   This  will  help  eliminate  problems that may
     exist due to unknown soil conditions.

                        TOTAL                         $106,000

Project design is estimated to be completed by November 1989  and
construction is estimated to be completed by December 1991.

BUDGET/FINANCIAL IMPACT

The additional funds of $106,000 will increase the K/J/C contract
amount from $182,000 to  $288,000.   Appropriation  authority  is
available in Capital Improvement Account 25-760-671-000-922.

RECOMMENDATION

Staff recommends that City Council authorize the City Manager  to
execute  an amendment to the  professional services contract with
Kennedy/Jenks/Chilton in the amount of $106,000.

Prepared by:  Stan Scholl, Director General Services
              Byron Gaines, Utilities Manager
              Cheryl Read, Admin. Water Engineer