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Water System

QuestionAnswer
Water well locations Well #2 at Fire Station 3 (emergency use only) Well #12 13939 Borate (emergency use only)
City owns how many acre feet of water 4036 AF; one AF = 325,850.9 gallons
Transmission water main size and location 16" from FS 2 through MWD connection (Shoemaker and Imperial), to Well #2 at FS3.
How many Cubic Feet in an acre foot 43,560 CF in an AF
Gallons per cubic foot 7.481 gallons
MWD connection 1 South west corner Shoemaker and Imperial, 6" control valve (1200 gpm) and 12" control valve (4800 gpm), reduces pressure from 220 to 80 psi. 15 cubic feet per second or 6733 GPM.
MWD connection 2 Southwest corner Imperial and Carmenita max flow 12.5 CFS (5611 GPM)
Total Flow of MWD connections 27.5 CFS or 12,344 GPM
Whittier Connection water system 6" at Chetle and Rivera, boosts to approximately 60-70 psi. 1800 gpm
Emergency connections water system San Gabriel Valley Water Company @ Dice & Altamar City of Downey at Studebaker & Cecilia City of Cerritos Alondra east of Carmenita (automatic pressure sensing)
Size of water reservoirs & pumping capacity 4 million gallons each, 28 hours pumping at 2300 GPM
Booster pumps 2 at each reservoir with 2300 GPM capacity
Booster pump settings automatically turns on at 45 psi, until static returns to 55 psi.
Water main sizes 12" Industrial 300' spacing, 1200-4800 GPM 6" residential 500-1000' spacing, 600-1800 gpm
Fire Flow 4500 GPM industrial/commercial 10 hours 3500 GPM high density residential 5 hours 2000 GPM SFD 5 hours
When was water system formed and acquired? Formed 1960s and aquired from Suburban Water 1968.
Water Master Plans Original 1966; Master Plan complete 1982, updated 2006
SCADA System Installed 2003 - Supervisory Control and Data Acquisition. MOnitors flows, water pressure, reservoir levels, power status and some remote operations.
How many hydrants in SFS 1150; 108 miles of mains
Pressure Relief Stations (5) 1. Sorensen and Burke; 2. Near FS 3; 3. Reservoir 2 (Foster Yard); 4. Reservoir 1 (MSY); 5. Greenstone S/O HQ Reservoirs take on water first then dump to storm drains.
Elevation northern SFS vs southern SFS 165' north and 63' south. 102' different. 90' difference between Slauson & Alondra (39 psi)
Water Sample Check Points 20: 12 taken weekly, monthy, quarterly and annual tests for bacteria, carcinogens & contaminants.
Water System Pressure (Maximum, minimum non-fire and minimum fire) 115 psi maximum, 45 psi minimum non-fire flow and 20 psi minimum fire flow
Created by: geoffdayne
 

 



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