25 Pa. Code § 77.461 - Dams, ponds, embankments and impoundments
(a) An application shall contain a general
plan and a design plan in the detail required by the Department for each
temporary and permanent dam, pond, embankment or impoundment within the
proposed permit area.
(b) The
general plan shall contain the following:
(1)
A description, map and cross section of the structure and its
location.
(2) Preliminary
hydrologic and geologic information required to assess the hydrologic impact of
the structure if requested by the Department.
(3) A survey describing the potential effect
on the structure from subsidence of the subsurface strata resulting from past
underground mining operations if underground mining has
occurred.
(c) The design
plan for a structure shall:
(1) Be prepared
by, or under the direction of, and certified by a registered professional
engineer or registered professional land surveyor.
(2) Include design and construction
requirements for each structure, including geotechnical information if
requested by the Department.
(3)
Describe the operation and maintenance requirements for each
structure.
(4) Describe the
timetable and plans to remove each structure, if appropriate.
(5) Include a stability analysis if the
structure is more than 15 feet (4.6 meters) in height as measured from the
upstream toe of the embankment to the crest of the emergency spillway or has a
storage volume of more than 50 acre feet (61.7 cubic meters).
(d) The design plan of
sedimentation ponds shall include the information required by §
77.527 (relating to sedimentation
controls).
Notes
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