Laserfiche WebLink
iii. The geotechnical report does not appear to address Site Suitability Criteria <br /> (SSC)—6 in Vol. III Section 3.3.7. Documentation of Cation Exchange <br /> Capacity and organic content are required unless a treatment sand layer is <br /> included in the pavement section. See DCSS Section 4-4.3(5) and the <br /> permeable pavement design requirements in the Stormwater Management <br /> Manual. <br /> A sand treatment layer is now proposed to meet required Cation Exchange <br /> Capacity. See Figure 1/C3. <br /> iv. PGHS Area figure-the hatching for new and replaced PGHS do not show <br /> up for Basin A. <br /> The PGHS figure has been revised and now shows the hatching for Basin <br /> A. See PGHS Area figure in the drainage report(the second figure <br /> following page 18). <br /> v. Note that at the end of the geotechnical report text seals of the authors are <br /> cut off. <br /> The page has been fixed, and the authors seals are now shown. Please see <br /> the geotechnical report in Appendix A of the drainage report. <br /> b. Drawings <br /> i. Sheet C2.0—the limits of the permeable pavement, and bioretention if it is <br /> added, areas should be identified on this sheet for Element#13 <br /> protections. Identify the required measures to protect these areas in the <br /> plans, in addition to the notes. <br /> The limits of the permeable pavement have been shown on sheet C2.0 and <br /> fencing has been proposed for Element#13 to protect the area. See sheet <br /> 2.0 Element#13. <br /> ii. Sheet C.2.0—There is insufficient detail to determine the grading within <br /> the permeable pavement area. (It appears that the grading elements may <br /> have been turned off prior to printing). In accordance with Section 4- <br /> 4.3(5) of the City's Design and Construction Standards and Specifications <br /> (DCSS)the permeable pavement must be graded to drain as if it were not <br /> permeable. Please provide sufficient grading detail to demonstrate that the <br /> new/replaced pavement will drain properly in the event of failure. <br /> Spot elevations have been added. See sheet 2.0. <br /> P® Box 1478 • Everett, WA 98206 • Phone: (425)303-9363 <br /> Fax: (425) 303-9362 • Email:info@insightengineering.net <br />