Perennial streams in a WCA or GWA shall not be channelized without prior approval by the Planning Board. Petroleum and Related Products Primary Metal Products and Foundries Pulp and Paper Mills Rubber and Plastics, Misc. Guilford County allows the use of several different methods for the control of stormwater runoff for watershed protection. The different methods and their design requirements are published in the Watershed Protection Handbook , January 1997, available in the Planning and Development Department. Of all the water quality practices in present use, natural infiltration is the preferred method, and should be the first alternative considered.
Natural infiltration is only acceptable for use in developments using the low density option.
Permanent wet detention ponds can be used whenever runoff control is required. They are not as effective as natural infiltration or wet detention ponds and can only be used for developments using the low density option. Experimental Filter Basins. In some cases, strict compliance with the watershed protection provisions may cause an usual and unnecessary hardship, and an appeal of a decision or a modification of the Ordinance may be granted. Appeals to the Planning Board can be made to the Governing Body.