Waterworks Inventory

Waterworks Inventory

Watershed    
   - China Creek basin 6202 Ha
   - Bainbridge Lake Catchment 1310 Ha
     
Intakes (Surface Supply) 3  
   - China Creek - gravity  24,451 m3/day permit
   - Bainbridge Lake - pumped 9,763 m3/day permit
   - Somass River - pumped 13,564 m3/day permit
    Total Permitted Volume 47,778 m3/day permit
     
Dams   3  
   - China Creek - intake - concrete  El. 184m (603.7') 5000 m3 storage
   - Lizard Lake -concrete/earthfill (440 acre ft) El. 732m (2401.6') 578,000 m3 storage
   - Bainbridge Lake - earthfill (1000 acre ft) El.153m (502') 1,230,000 m3 storage
  1813000  
     
Pumpstations 5  
   - Bainbridge - 2x50 HP @ 2508 gpm  100 Hp
     
   - Somass     - 2x60 HP @ 750 gpm ea. 245 Hp
                         - 1x125 HP @ 1390 gpm     
     
   - Cowichan   - 2x60 HP @ 2400 gpm 125 Hp
                           - 1x5 HP @ 65 gpm     
     
   - Johnston   - 4x60 HP @ 800 gpm ea. 538 Hp
                          - 1x7.5 HP @ 120 gpm     
                          - 2x145 HP diesel @ 2100 gpm     
     
   - Arrowsmith - 2x5 HP @ 65 ea. 10 Hp
     
   Total Pumpstation Horsepower 1018 Hp
     
Chlorination Stations 3  
   - Bainbridge Pumpstation (gas injection)    
   - Somass Pump/Intake (gas injection)    
   - Johnston Pumpstation (gas injection)    
     
Chlorine Residual Test Points - Daily 13  
Bacterial Test Locations - Monthly 21  
     
Reservoirs 5  
   - Upper Cowichan - floating cover  El.158m 11,250 m3    1962/1963
   - Lower Cowichan - floating cover El.146m 6,750 m3     1937
   - Burde - floating cover El.86.8m 6,750 m3     1947
   - Johnston - 2 cells, concrete  El.66.8m 9,000 m3
   - Arrowsmith - 1 cells, steel tank  El.173.6m 250 m3
   Total Reservoir Storage Volume 34,000 m3
     
Supply mains HDPE- 500mm 3.60 km
Supply mains Steel - 1200mm 0.10 km
Supply mains PVC- 500mm 1.51 km
Supply mains steel- 600mm 4.81 km
Total Supply Mains 10.02  
     
Distribution mains < 150mm 91.0 km
Distribution mains 200-300mm 48.5 km
Distribution mains > 300mm 25.5 km
Total Distribution Mains 165.0 km
     
Distribution mains - Asbestos Cement 77.2 km
Distribution mains - Cast Iron 32.3 km
Distribution mains - P.V.C. 37.6 km
Distribution mains - Ductile Iron 7.6 km
Distribution mains - Galvanized Iron 0.0 km
Distribution mains - Steel 0.8 km
Distribution mains - Wood Stave 0.0 km
Distribution mains - Type Unknown 9.5 km
  165.0  
     
Pressure Reducing Stations 20  
Pressure Zones 12  
Line Valves 1618  
Air Valves 69  
Hydrants (City) 735  
Hydrants (Private) 74  
     
Connections  6462  
   - Residential    
   - Commercial 317  
   - Industrial 13  
   - City 64  
  6856  
     
Meters (Active) 6856  
     
Meter Size Breakdown    
15 or 19 mm inside City 6432  
15 or 19 mm outside City 50  
25mm inside 100  
25mm outside 1  
40mm inside 82  
40mm outside 2  
50mm inside 127  
50mm outside 5  
75mm inside 30  
75mm outside 2  
100mm inside 11  
100mm outside 1  
150mm inside 6  
150mm outside 4  
over 150mm 3  
  6856  
     
Average Annual Volume Served 5,836,317 m3
Peak Day Usage 18,072 m3
Minimum Day Usage 2,731 m3
Average Day Usage 9,216 m3