(a) Any person, firm or corporation proposing to engage in an activity requiring a permit shall apply for a permit by written application on a form furnished by the township.
(b) (1) The application for a permit shall be accompanied by a map or diagram of the property showing the location of all present and proposed ditches, streams, pipes and other drainage structures and cuts or fills. In addition to showing elevations, dimensions, location and extent of all proposed grading and/or drainage, the plans shall clearly indicate all buildings, parking areas and driveways. Further, application shall indicate the present and proposed sources, storage and disposition of water being channeled through or across the premises, together with elevation, gradients and maximum flow rates. The application shall describe the work to be performed, the materials to be used and the manner or method of performance, including provisions for protecting and maintaining existing drainage facilities in the township whether on public or private property. The applicant shall submit to the township a detailed drainage study prepared by a registered professional engineer.
(2) This drainage study shall include the following information:
A. The drainage area or area of runoff;
B. The coefficient of surface runoff used;
C. The roughness coefficient of a conduit or swale; and
D. The slope of the conduit or swale.
(3) The storm intensity used shall be based on Chapter 1043 of the Streets, Utilities and Public Services Code.
(4) The time of concentration from point to point within a drainage system should equal the storm duration to be used in determining the rainfall intensity in subsection (b)(3) above.
(5) If load-bearing fill is proposed, a soils investigation report shall be submitted which shall consist of test borings, laboratory testings and engineering analysis, to correlate surface and subsurface conditions with the proposed rating plan. The results of the investigations shall be presented in a report by a Soil Engineer which shall include data regarding the nature, distribution and supporting ability of existing soils and rock on the site, conclusions and recommendations for grading requirements and erosion control, and recommendation to ensure stable soil conditions and ground water control as applicable. The township may require such supplemental reports and data as it deems necessary. Recommendations included in such reports and approved by the township shall be incorporated in the plan or specifications.
(c) The application for a permit to grade shall be accompanied by a permit fee of an amount set forth by the Board of Commissioners in the fee resolution for the first acre of land or any fraction thereof. If more than one acre is graded, as described in this chapter, an additional fee of an amount set forth by the Board of Commissioners in the fee resolution per acre shall be charged for each acre graded in excess of the first acre.
(d) All applicants for a permit involving an area greater than one acre shall, before any permit is granted, post a bond with the township, in a sum to be determined by the Township Engineer, with corporate surety to be approved by the Township Solicitor, the conditions of which shall be a full and complete compliance with this chapter and all terms of the permit.
(Ord. 360, passed 9-19-1990)