July 25, 2012 - Toho Water Authority

Major Project Summaries 07.25.12
Project Project Status Progress from Cost Schedule
Name Description Previous Report Estimate
Camelot Water
Reclamation
Facility - Phase
1B
DB
Design Engineer: PB Water.
Contractor: Encore Construction
The Phase 1B project includes an upgrade
and rehab of existing aeration system and
dissolve oxygen control to allow for
maximization of the existing treatment
capacity and to make the process more
energy efficient; the work includes: upgrade
of the existing blowers; conversion from
Chlorine Gas to Sodium Hypochlorite;
expansion of the chlorine contact tank;
rehabilitation and expansion of the existing
filters; rehab and replacement of the Pine
Island pump station and repair/replace Pine
Island Spray Field distribution system;
addition of a Motor Control Center room, yard
piping and drainage improvements; other
associated modifications.
Phase 1B currently in the
construction phase.
Construction is underway.
Construction on the Chlorine
Contact Tank expansion,
sodium hypochlorite system,
reject pond modifications, filter
effluent piping and other yard
piping, electrical work, and
MCC building is underway.
Phase
1B
Construction GMP is
$5,252,904; Owner
Direct Purchase of
large equipment is
$1,086,298; Biochem
equipment is
$269,742; total
project cost is
$6,598,944.
Construction is
anticipated to be
substantially complete
by February 2013 with
final completion by April
2013.
LS#35 Odor
Control Project
DB
Design Engineer: Webster Environmental
Contractor: To Be Determined
The LS#35 Odor Control project replaces the
existing biological odor control unit to achieve
a more reliable, effective H2S removal rate.
Addition of a second stage biological filter will
more effectively remove organic odors.
Engineering is complete.
The odor control equipment
has been delivered. CMAR
is under contract.
The site design has been
completed and the CMAR
services for the project have
been awarded to Encore
Construction through
competitive bidding. The Odor
Control Equipment has been
delivered. Sub-contractor bids
are due on August 2, 2012.
Board approval of the
Guaranteed Maximum Price is
anticipated to be requested via
consent agenda at the August
8, 2012 meeting.
Engineer’s
Estimate
Project,
equipment
installation):
$250,000
Equipment
$132,000
Cost
(Total
including
and
cost:
Construction/installation
and start-up of the new
odor control equipment
is anticipated to be
initiated in August and
complete by October
2012 following the
establishment of
biological colonies in
the biological scrubber
and biological filter.
LS 35 Bypass
Project
LZ
Design Engineer: CPH Engineers, Inc.
CMAR: Encore Construction
The project will construct the force main to
bypass wastewater around Lift Station 35.
Rerouting the force main to bypass LS 35 will
reduce the flow to the lift station.
This project has been
combined with the LS 35
odor control equipment
installation project.
The design has been
completed. CMAR service
bidding has been completed.
The project has been
awarded.
The estimated
construction cost is
$315,000
Construction is
scheduled to be
completed by the end
of October, 2012.
Walnut WRF
(#3) Digester
Rehabilitation
Design Engineer: CPH Engineers, Inc.
Contractor: To Be Determined
The project will include the rehabilitation of
The consultant has
completed a preliminary cost
and feasibility study of the
rehabilitation options. The
2
Preliminary feasibility and cost
evaluation have been
completed. Revised 90%
design plans were received in
$400,000 (engineer’s
revised preliminary
design cost estimate)
Project will be bid to
CMARs currently under
contract with TWA in
July
with