§ 105.81. Permit applications for construction and modification of dams and reservoirs.

 (a)  In addition to the information required by §  105.13 (relating to permit applications—information and fees), permit applications under this subchapter for the construction or modification of dams and reservoirs shall give the following information:

   (1)  The name and address of the applicant.

   (2)  The location, type, size, height and purpose of the proposed dam and reservoir and appurtenant works.

   (3)  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.

   (4)  The storage capacity and reservoir surface areas for normal pool and maximum high water.

   (5)  Plans for purposed permanent monitoring of performance by instrument installations in the dam, including the purposes of the instrumentation. If no instrumentation is considered necessary, reasons for this judgment may be stated.

   (6)  As accurately as may be readily obtained, the area of the drainage basin, pertinent rainfall and streamflow records, and flood flow records and estimates.

   (7)  The proposed time for commencement and anticipated completion of construction.

   (8)  The method and schedule of operation of the dam including an emergency warning system and operation plan if required under §  105.134 (relating to emergency action plan).

   (9)  Plans for control of erosion and water pollution during the anticipated construction operations including plans for adequate measures to limit the erosion of the soil from exposed slopes after completion of construction. The plans shall indicate that adequate control measures will be taken during construction to protect the quality of stream flow below the project site. The application shall include a copy of a letter from the conservation district in the county where the project is located indicating that the district reviewed the erosion and sediment control plan of the applicant and considers it to be satisfactory.

   (10)  Proof of title or adequate flowage easements for land area below the top of the dam elevation that is subject to inundation.

   (11)  Other information the Department may require.

 (b)  The application shall be accompanied by a design report, construction plans and specifications, in sufficient detail to evaluate the safety, adequacy and suitability of the proposed work.

 (c)  The applicant shall conduct and submit the results of the investigations and tests as the Department, in its judgment, believes are necessary to determine the safety, adequacy and suitability of design, including but not limited to:

   (1)  Data concerning subsoil and rock foundation conditions and the materials entering into the construction of the dam or reservoir.

   (2)  Data concerning exploratory pits, drilling, coring and tests to determine seepage rates.

   (3)  Data concerning the strength tests necessary to measure the physical properties and behavior of foundation and embankment materials at the dam or reservoir site.

   (4)  Data concerning the geology of the dam or reservoir area, indicating possible hazards such as faults, weak seams and joints.

   (5)  Data concerning availability and quality of construction materials.

   (6)  Other information as may be necessary, including the design calculations for the dam, which shall be made available to the Department on request.

 (d)  Plans and specifications and the results of tests or investigations shall be prepared under the supervision of and certified by a registered professional engineer experienced in dam design and construction and assisted by qualified engineers, geologists and other specialists, when necessary.

   The provisions of this §  105.81 adopted September 10, 1971, effective September 11, 1971, 1 Pa.B. 1804; amended August 11, 1978, effective August 12, 1978, 8 Pa.B. 2229; amended September 26, 1980, effective September 27, 1980, 10 Pa.B. 3843. Immediately preceding text appears at serial pages (47994) and (38864).