Lake Types - Understanding Lake Data
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PHYSICAL CHARACTERISTICS - Page 3
Lake types
Lakes are often classified into four types based on water source
and type of outflow (see Figure 1 below).
FIGURE 1.
LAKE TYPES. Major water inputs and outflows of different lake types.
(LARGE ARROWS INDICATE HEAVY WATER FLOW.)
1. SEEPAGE LAKE - a natural lake fed by precipitaion, limited
runoff and groundwater. It does not have a stream outlet.
2. GROUNDWATER DRAINAGE LAKE - a natural lake fed by groundwater,
precipitation and limited runoff. It has a stream outlet.
3. DRAINAGE LAKE - a lake fed by streams, groundwater,
precipitation and runoff and drained by a stream.
4. IMPOUNDMENT - a manmade lake created by damming a stream.
An impoundment is also drained by a stream.
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For more information on this topic, contact:
James Vennie
Watershed Management
(608) 266-2212
Lakes Partnership | Watershed Management | Fish Wisconsin | Fisheries Management
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