Weir 1

Raw AMD emanating from collapsed underground mine entry. This water is bypassed around a portion of the passive treatment system and then mixes with the water flowing out of the settling pond just prior to Weir 2.  Sometimes this is actually sampled in the stream just prior to the settling pond outflow and weir 2 to capture all of the untreated AMD before mixing with treated.

Type:
Quad:
Lat:
Long:
Inflow: Yes
Outflow: No
Flow Order: 3
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