|
Mills
Water Treatment Plant Modules 1 & 2 Rehabilitation and
Chemical System Improvements, Metropolitan Water District of
Southern California |
|
As Prime Consultant, LEE
& RO is responsible for planning, design, and construction
support services for the $40 million Plant Rehabilitation and
Upgrading projects, the $18 million Chemical Systems Improvements
project (sulfuric acid, caustic soda, hydrogen peroxide, sodium
hypochlorite, ammonia, liquid and bulk powder polymers, and
chlorine systems), and the $22 million Modules 1 and 2
Rehabilitation project. Due
to low demand, the 51.5 mgd capacity Module 1 and the 54.5 mgd
capacity Module 2 were removed from service in 1997.
Recent flow projections indicate that the Mills plant must
be upgraded to its full 326 mgd treatment capacity, which includes
220 mgd in capacity from Modules 3 and 4.
The Modules 1 & 2 Rehabilitation project will include
rehabilitation of structures, replacement or addition of
mechanical equipment, piping, and valves, and upgrading of
controls and the electrical system.
Final design of this $40 million project is scheduled to be
complete in February 2008 with construction starting in August
2008. |
 |
|
|
|
|
Washwater
Reclamation Plant No. 2 and Miscellaneous Plant Improvements,
Skinner Filtration Plant, Metropolitan Water District of Southern
California
|
|
As Prime Consultant, LEE & RO was responsible for various
water treatment plant improvements including replacement of
flocculators and tube settlers for the spent backwash reclamation
plant and improvements to on-line water quality monitoring vaults.
Final design for the $4.5 million project was completed in March
2005 and construction is scheduled to be complete in April 2008.
|
 |
|
|
|
|
Skinner
and Diemer Water Treatment Plants Oxidation Retrofit Program (ORP)
Project, Metropolitan Water District of Southern California
|
|
As Principal Subconsultant (20% share of contract value) to CDM,
LEE & RO was responsible for the preliminary design, final
design, and construction phase engineering services for the
chemical tank farms, site electrical distribution system, and
electrical and instrumentation design at Washwater Reclamation
Plant No. 3 for the $170 million Skinner ORP project (currently
under construction) and the $110 million Diemer ORP project
(currently in final design). The
ORP project objective is removal of THM forming compounds through
ozonation.
|
 |
|
|
|
|
Weymouth
Water
Treatment Plant Oxidation Retrofit Program (ORP) Project,
Metropolitan Water District of Southern California
|
|
As Principal Subconsultant (35% share of contract value) to
Carollo Engineers, LEE & RO was responsible for the
preliminary design and final design of the entire electrical
distribution system (66 kV, 4,160v, and 480v) supporting the $120
million Weymouth ORP Project for removal of THM forming compounds
by ozonation. In
addition, LEE & RO provided the structural, mechanical and
electrical design of the Plant’s main switchgear building (12kV
and 4,160v switchgear and emergency generators). LEE & RO has
produced over 300 design drawings for this project. The final
design was complete in May 2007 and the construction bids were
opened in July 2007.
|
 |
|
|
| Goldsworthy
Desalter Project, Water Replenishment District of Southern
California, Torrance,
CA
|
| As
Prime Consultant, LEE & RO was responsible for the design and
construction phase services for the $12 million, 2,100 gpm
capacity Goldsworthy Desalter project.
The project objectives were to restore the fresh-water
aquifers by removing trapped seawater plumes and to demineralize
groundwater and pump it to the CAL Water and City of
Torrance
domestic water distribution systems.
The project elements included raw water, reverse osmosis
(RO) feed water, and product water pump stations, an RO plant, and
raw water, treated water and brine pipelines. These 12-inch to
18-inch pipelines transported raw water to the desalter, treated
water to the domestic water distribution system, and brine to LA
County Sanitation District’s
trunk sewer.
|
 |
|
|
|
Chlorine
Containment and Handling Facility (CCHF) Projects for Skinner,
Jensen and Mills Filtration Plants, Metropolitan Water District of
Southern California
|
|
As Prime Consultant, LEE & RO is responsible for planning,
design, and construction phase engineering services for the $60
million CCHF program projects at the Skinner, Jensen, and Mills
Water Treatment Plants. Current CCHF project status: Skinner Plant
– construction to be completed in January 2008; Mills Plant –
construction approximately 70% complete; Jensen Plant –
construction 50% complete. The
construction cost for the three CCHFs is $20 million each. Under
this program, the water treatment plants will have a fully
contained bulk chlorine storage facility consisting of seven
19-ton chlorine trailers for both Skinner and Mills and four
90-ton rail cars for Jensen, complete with chlorine evaporators
and chlorinators, chlorine scrubbers, and other safety and
security equipment.
|
 |
|
|
|
