(a) Photographic Evidence. Photographs, or video tape of the lot, parcel, or parcels shall be submitted to the Building Inspector prior to any clearing, grading or building activity on the parcel to be developed. The photographic evidence shall completely depict the condition of the parcel in sufficient detail to allow the Building Inspector to evaluate compliance with these provisions. The Building Inspector shall have the authority to request additional photographic records of pre-development to satisfy the intent of this section.
(b) Grading Plan. A grading plan shall be required for each lot in conformance with Section 1325.07
of the Building Code and in addition shall show the natural topography of the total parcel to be developed, the location and size of all structures, the finish grade of all improvement locations, driveway and road profiles, and the dimensions, elevations and detailed topographic contours of any proposed earth moving. The grading plan shall be submitted with each storm water management plan.
(c) Earth Moving Controls. The following minimum standards shall apply to earth moving:
(1) Earth moving shall be limited to the minimum required for building foundations, driveways, drainage control structures and immediate yard areas. With the exception of purely stockpiling or restoration efforts, substantial earth moving shall not be permitted.
(2) All earth moving shall create the lowest possible potential for airborne or waterborne transportation of soil.
(3) All fill shall be stabilized in conformance with generally accepted engineering standards, including a compacted density of at least 95%.
(4) All earth moving shall be accomplished in the shortest practical period of time. In no event shall the existing natural vegetation be destroyed, removed or disturbed more than fifteen days prior to the initiation of construction.
(5) No excessively steep, or unnecessary cuts or fills shall be allowed, as determined by the Village Engineer.
(Ord. 17-1994. Passed 6-6-94.)
(d) Hydrological Controls. The following standards shall apply to hydrological controls; subsection (2) below shall apply to all parcels in the Village, whether or not a storm water management permit is required.
(1) Natural, pre-existing drainageways shall be preserved to the maximum extent possible.
(2) Run-off from concentrated impervious surfaces shall be collected, detained when required, and transported in a pipe or other approved manner to a municipal storm sewer system, if available. If unavailable, or if chosen as an alternative means of storm water management by the owner of the site, water shall be retained on site by means of an infiltration trench, dry well, grass or vegetation strip or bio-retention system as described and specified in Chapter 2, Post Construction Storm Water Management Practices, Ohio Department of Natural Resources, Rainwater and Land Development Manual, as the same is currently published, and as amended and/or replaced, in successive years. The relevant portions of the Manual are available and on file at the Village offices.
A. If a downspout disconnect above ground is utilized as a part of the alternate system the disconnect cannot discharge less than two feet from the building. The discharge point must be a minimum of five feet from any property line or public right-of-way.
B. Alternate means shall also include the use of rain barrels and similar devices.
C. All alternate systems shall not increase the run-off to adjoining properties. If run-off to adjoining properties results from an alternate system, overflow devices shall be installed to carry the excess run-off to the municipal storm sewer system, by such method as is specifically approved by the Planning Commission. For properties adjoining Silver Lake or the Cuyahoga River or their tributaries, such excess run-off may flow into the Lake or River or their tributaries, but only upon specific approval of the Planning Commission and utilizing the best management practices described above to eliminate any risk of pollution to the Lake or River. If such excess run-off cannot be successfully directed to the municipal system or to the Lake or River as approved by the Planning Commission, then the flow of run-off from impervious surfaces shall be directed to the municipal system in the conventional manner and without use of the alternative methods described above.
D. All yard drains shall be connected to the municipal storm water system upon approval of the plans therefore by the Village Planning Commission, unless all storm water from the yard drain is absorbed on the premises of the yard drain as an alternative method. Upon demonstration by the owners of property adjoining Silver Lake, the Cuyahoga River, and tributaries of either within the Village, that their yard drains cannot feasibly be connected to the municipal system, then storm water run-off from yard drains on such property may be permitted to drain into such adjoining waters, if approved by the Planning Commission, as an alternative method utilizing the best management practices referenced above to eliminate any risk of pollution to such waters of the Village.
E. All alternative methods of storm water control described in this section shall be conditionally permitted uses, subject to the terms, conditions, standards, and procedures for approval contained in this section and Section 1133.06 of the Village Code.
(3) Natural drainageways shall be established by means consistent with sound professional engineering practices below drainage and culvert discharge points for a distance sufficient to convey the discharge without channel erosion and in such a manner as to dissipate the energy of the discharge.
(4) The overall drainage system shall be completed and made operational at the earliest possible time during construction.
(5) Impact on adjacent property. Natural or usual flow of surface or subsurface water shall not be altered or obstructed in any way by grade changes that may adversely affect the property of another.
(6) Stormwater detention systems shall be required and utilized to the maximum extent feasible, as determined by the exercise of sound engineering practices, in addition to the above hydrological controls.
(Ord. 68-2009. Passed 9-21-09.)
(e) Hydrological Control Plan. A hydrological control plan, prepared by a registered civil engineer or landscape architect shall be submitted with each application for a storm water management permit. This plan shall include the following:
(1) A reasonably detailed description of: the direction of flow within the local drainage basin; all natural drainage channels directed toward and away from the site within fifty feet of the perimeter of the site; other natural drainageways which may affect or be affected by the proposal; and any future realignment of the natural ravine channel.
(2) Special notations shall be included highlighting details of the terrain, existing natural surface drainage and areas subject to seepage or spring flow.
(3) The location of all surface and subsurface drainage devices and protective measures to be installed as part of the proposed development, together with a statement concerning any active erosion occurring at the outlet of existing or proposed systems.
(4) If there is substantial disturbance or destruction of natural vegetation a revegetation plan shall be submitted with the hydrological control plan.
(f) The developer shall be responsible for the maintenance of public streets affected by construction of storm water management facilities including daily clean-up of accidentally fallen earth and materials removed from or delivered to the site.
(Ord. 17-1994. Passed 6-6-94.)