25 Pa. Code § 105.81 - Permit applications for construction and modification of dams and reservoirs
(a) In
addition to the information required under §§
105.13,
105.13a,
105.13b and
105.15, permit applications under
this subchapter for the construction or modification of dams and reservoirs
must provide the following information:
(1)
Reports and data detailing the conduct and results of investigations and tests
necessary to determine the safety, adequacy and suitability of design,
including:
(i) Data concerning subsoil and
rock foundation conditions.
(ii)
Data concerning exploratory pits, drilling, coring and tests to determine
seepage rates.
(iii) Data
concerning the strength tests necessary to measure the physical properties and
behavior of foundations and embankment materials at the dam or reservoir
site.
(iv) Data concerning the
geology of the dam site or reservoir area, indicating possible hazards such as
faults, weak seams and joints.
(v)
Data concerning availability and quality of construction materials.
(vi) A "Dam Stability Report" as required
under §
105.97 (relating to stability of
structures).
(vii) Other
information as may be necessary to determine the safety, adequacy and
suitability of the design, including the design calculations for the dam, which
shall be made available to the Department on request.
(2) Site plan and cross sectional views
required under §
105.13(d)(1)(i)
(relating to permit applications-information and fees).
(3) Construction plans, specifications and
design reports to evaluate the safety, adequacy and suitability of the proposed
dam, reservoir and appurtenant works in order to determine compliance with this
chapter.
(4) A schedule indicating
proposed commencement and completion dates for construction.
(5) For projects involving storage of fluids
or semifluids other than water, information concerning the chemical content,
viscosity and other pertinent physical characteristics of the fluid or
semifluid impounded.
(6) An
instrumentation plan including justification and design for the installation of
permanent monitoring instruments to measure the performance of the dam. If no
instrumentation is considered necessary, justification shall be
provided.
(7) A hydrologic and
hydraulic analysis, submitted as a separate report, which includes:
(i) The size, shape and characteristics of
the drainage basin.
(ii) Current
precipitation data and precipitation distribution information as required by
the Department.
(iii) Streamflow
records.
(iv) Flood flow records
and estimates.
(v) An incremental
dam breach analysis, storage capacity and reservoir surface area for normal
pool and maximum storage elevations.
(vi) Other hydrologic and hydraulic
determinations necessary for the design and operation of the dam.
(8) For existing dams, copies of
the structure's most recent inspection reports.
(9) EAP if required under § 105.134
(relating to EAP).
(10) Proof of
title or adequate flowage easements for land area below the top of the dam
elevation that is subject to inundation.
(11) An Operation and Maintenance Manual for
the dam as required under §
105.131 (relating to operation,
maintenance and monitoring).
(12)
Other information the Department may require.
(b) The Department may waive specific
information requirements of this section in writing, if the Department finds
that specific information is not necessary to review the application.
Notes
The provisions of this § 105.81 amended under section 5 of the Dam Safety and Encroachments Act (32 P. S. § 693.5).
This section cited in 25 Pa. Code § 105.88 (relating to dam permit issuance).
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