Adapted from U. S. Filter Memcor Application Bulletin A1075-A Issue Date May 1994 which can be ordered by email by visiting http://www.memtec.com/memcor/techinfo/techindex.html

FACILITY: SARATOGA WATER FILTRATION PLANT
SITE: Congress Springs,Saratoga,California,USA
CLIENT: San Jose Water Company, City of San Jose, California,
ENGINEER: Camp, Dresser and McKee Engineers Walnut Creek, California

Plant specifications
Microfiltration arrays 6 x 90OM10
Membrane Polypropylene, 0.2 micron, hollow fiber
Backwash Lair system Dual Sullair rotary screw compressors, dryers and single receiver
Control system Allan Bradley, SLC500 w/control view interface
Raw water pumps 2 x 60 Hp splitcase centrifugal
CIP system Coated steel tank, Goulds recirc. pump
 
Operating Data
 
Capacity Operating 5.0 MGD
Raw water Turbidity 0.9 to 600 NTU
Filtered water Turbidity 0.03 NTU
Particle Reduction Range 3.0 to 3.7 Log
Water Temp. Range 44 to 61° F
Water pH 8.1 average
Integrity Test
Auto every 24 hrs. at an average pressure decay of 0.27 psi/min.
Backwash Interval
22 to 240 mins. (varies based on raw water turbidity and temp.)
Clean in Place
Approx. once every 30 days under normal operation
System Recovery
90 - 97% (backwash water from lagoon is reclaimed)
Disinfection
0.8 mg/l chlorine (Sodium Hypochlorite dosing)
Commissioned
March 1994
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