Page 110 - Water and wastewater engineering
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INTAKE STRUCTURES 3-7
Collector wells
Perforated pipe
River
Collector wells
Perforated pipe
River
FIGURE 3-5
Two arrangements of infiltration galleries with wells.
Pump house,
pump motors,
and controls
River Distribution
Water level
Reinforced concrete caisson
Sand and gravel
aquifer
Horizontal screens
Bedrock or confining impervious layer
FIGURE 3-6
Collector well with horizontal groundwater collection screens.
shore-based systems provide the best combination of access for operation and maintenance and
reliable supply (Bosserman et al., 2006).
Unlike lakes and reservoirs, special consideration must be given to the impact of floods and
droughts on river intakes. In the first instance, structural integrity, availability of power, and
access must be considered in the design. In the second instance, provision must be made for
