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} <br /> PUBLIC WORKS <br /> ii. Cleanouts should be provided at end of underdrain pipes to facilitate maintenance. <br /> Cleanouts have been provided at all infiltration pipe-end locations. <br /> iii. Underdrain pipes below driving surfaces must meet pipe material and cover <br /> requirements. <br /> Note has been added to plan. <br /> iv. Site soil suitability requirements must be complied with to ensure that groundwater <br /> resources are protected. Provide documentation that the native soils meet the <br /> suitability criteria at each infiltration facility or provide a sand filter layer. Site <br /> suitability data may be provided during construction as long as the sand layer is <br /> shown in the approved plans. <br /> A sand filter layer has been provided. <br /> v. Infiltration galleries should not be located in close proximity to fill walls. <br /> Note: One Infiltration gallery has been relocated as requested. <br /> b. Provide plan notes requiring protection of the infiltration soils during construction. Soils <br /> below the infiltration areas should not be compacted to the same level as is typically done <br /> below a pavement section. <br /> Note has been added to plan. <br /> c. The revisions to the water quality pond elevations have addressed the concerns about the <br /> function of the detention tanks. However,the changes need to be reflected throughout the <br /> plan set, including the profiles and all plan sheet labeling. <br /> Revised as requested. <br /> d. Pond side slopes must be 3:1 or flatter unless a wall is provided as the sides. Based on the <br /> spot elevations provided it appears that the side slopes are very steep, but no walls are <br /> indicated. <br /> Walls have been indicated and plan set have been revised. <br /> Page 3 of 6 <br />