(A) Minimum construction requirements. All sump pump collection systems in the township shall be constructed according to the following minimum requirements:
(1) The sump pump collection systems shall be constructed with eight-inch minimum diameter pipe ABS composite (Truss) or PVC pipe;
(2) All sump pump collection systems shall be connected to the storm sewer systems only;
(3) All sump pump collection systems shall be placed in drain easements and/or public utility easements;
(4) All sump pump collection systems shall be connected with two-inch minimum diameter PVC pipe connected to the sump pump discharge;
(5) All sump pump collection systems shall be constructed with a minimum of three feet of cover over the pipe with a minimum slope of 0.30%;
(6) All clean-outs must be placed at a maximum of 300-foot intervals and also at the up-stream ends of the system; and
(7) All sump pump collection systems shall be constructed with a minimum of two-foot diameter access structures at all pipe intersections.
(B) Review and approval procedures. The determination of the acceptability of the proposed sump pump collection system will be made in accordance with the standards set forth in this subchapter. The procedures are as follows.
(1) At the time of the review and an approval of the preliminary plat, or final site plan, the applicant shall indicate in general the method or methods of handling the sump pump water discharge.
(2) The foregoing information will be reviewed by the Township Engineer in accordance with sound engineering principles. The Township Engineer shall make its written recommendation to the township prior to the review by the Planning Commission of the preliminary plat or site plan submitted for final approval.
(3) At the time of the final approval of the preliminary plat by the Township Board with the recommendations, if any, of the Planning Commission, or the final site plan approval by the Planning Commission, the acceptability of the proposed sump pump collection system shall be determined.
(4) Residential projects other than plats or site plans approved by the Planning Commission shall be reviewed by the Building Department and the Department of Public Works for compliance and determination of the acceptability of the proposed sump pump collection system.
(C) Prohibited discharges. The discharge of water from sump pumps which results in any of the following conditions shall be considered to be to the detriment of the general public health, safety and welfare and shall be prohibited:
(1) Discharges onto public or private streets, parking lots, walks, bike paths or pedestrian/vehicular travel ways which would occur on a regular basis and/or cause the formation of ice or slippery conditions during the winter months;
(2) Discharges onto lawn areas, including drainage swales, which result in the area being incapable of proper maintenance or which would cause the pooling of water and the promotion of the breeding of mosquitoes or other insects; and
(3) Any discharge not outletting to a suitable storm sewer or waterway which as a result of ground water or other conditions causes the sump pump to cycle on a continuous basis without influence from precipitation.
(D) Existing sump pump systems. Discharges from existing sump pump collection systems which create or cause to create situations outlined in division (C) above shall be defined as prohibited discharges and subject to correction. The following are possible remedies which shall be required to correct existing prohibited discharges:
(1) The connection of the sump pump discharge line to an appropriate storm sewer or drainage ditch adjoining the property by means of an underground two-inch minimum diameter pipe in conformance with Township Building and Plumbing Codes;
(2) The connection of the sump pump discharge line to a dry well constructed on the property by means of an underground two-inch minimum diameter pipe in conformance with Township Plumbing and Building Codes. Dry wells will be permitted only in soil conditions where the discharge water will percolate into the ground without adversely impacting adjoining properties. In general, dry wells will be constructed of perforated pipe 24 inches in diameter set vertically in the ground and surrounded by a minimum of six inches of stone on the sides and bottoms. The minimum depth of the dry well shall be 48 inches and a suitable lid shall be placed on top which may be covered with earth;
(3) In areas where soils are not suitable for dry wells or where an existing storm sewer or drainage ditch does not adjoin the property, the owner may be required to obtain permission from adjoining land owners to gain access to a suitable outlet. Remedies in this situation will be reviewed and prescribed by the Township Engineer and Chief Building Official; and
(4) Property owners utilizing remedies encompassing more than one property owner may attempt to establish a special assessment district for all benefitted property owners in a manner and in accordance with state law.
(Prior Code, § X-3.069-4)