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CADD based details for pond systems are contained in the section on drawings. The following details, with specifications, have been created for infiltration systems:
Given that the construction of infiltration practices incorporates techniques or steps which may be considered non-standard, it is RECOMMENDED that the construction specifications include the following format and information.
The Construction Stormwater General Permit requires that infiltration systems not be excavated to final grade until the contributing drainage area has been constructed and fully stabilized unless rigorous erosion prevention and sediment controls are provided (Part III.D.1.c). The permit also requires when an infiltration system is excavated to final grade (or within 3 feet of final grade), the Permittee(s) must employ rigorous erosion prevention and sediment controls (e.g. diversion berms) to keep sediment and runoff completely away from the infiltration area. The area must be staked off and marked so that heavy construction vehicles or equipment will not compact the soil in the proposed infiltration area. It is Recommended that infiltration systems be installed or put online after final stabilization of the site.
This page was last edited on 11 December 2022, at 14:43.