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bld20150148_Lewis-Addition#2.pdf City of Edmonds TH 121 5AVENUE NORTH •EDMONDS, WA 98020 • (425) 771-0220 FAX(425) 771-0221 Website: www.edmondswa.gov/ DEVELOPMENT SERVICES DEPARTMENT Planning • Building • Engineering Plan Review Comments Plan Check :Date: #BLD20150148April 17, 2015 Project Name/Address: Lewis Addition–18910 Sound View Pl. Contact Person/Address/Fax: Ron McNurlenmcnurlen@comcast.net Reviewer:Chris RiveraDivision:Engineering During review of the subject submittal,it was found that the following information, corrections, or clarifications wouldneed to be addressed. All Handouts referred to in these comments can be accessed at our website: www.edmondswa.gov/under City Government / Development Services Department / Engineering Division then scroll down to Handouts: stnd 1Review –March 2 ndth 2Review –April 17 1)Please remove duplicate General Notes: 13-17, from the Cover Sheet. 2)Please show the location of the water service line from the water meter to the home. 3)A right of way permit is required for the use of the right of way, attached is a right of way application. Please fill out and submit with a traffic control plan. th April 17–ARight of Way permit was createdand is associatedwith this permit for future use. Prior to issuing theRight of WayPermit, aROW Permit Application needs to be submitted consisting of information on the licensed contractor. 4)A Side Sewer Permit will need to be obtained for replacement of the side sewer. Attached is a side sewer application & for your reference the Side Sewer Information handout, E71. th April 17–ASide Sewer permit was createdand is associatedwith this permit for future use.Prior to issuingthe Side Sewer Permit, aApplication needs to be submitted consisting of information on the licensed contractor. 5)Please call out on the Drainage & Utility plans the material for the side sewer. Please provide on the Drainage & Utility plans the Sewer Cleanout Details, E6.2. and Side Sewer Relocation/Repair detail E6.3. 6)Per the Drainage Report, Appendix A -Critical Areas Report & Proposed Mitigation Plan and more specifically page 6, the Proposed Compensatory Mitigation Efforts, it is proposed to remove the existing invasive non-native vegetation within the remaining stream buffer of 37.5’. Please elaborate on the note “Limits of Clearing”, providing a description of the type of work to be performedbeyond the silt fence within the stream buffer. Per the Planning Divisions requirement, any work performed within the stream buffer shall be done with hand tools. DATE FAXED/E-MAILED4/17/2015PAGE __1__ OF __1_ 7)Per Jerry Shuster, City of Edmonds Storm Water Engineer, please provide elevations for the “Seasonal High Ground Water” table within the infiltration gallery section details. This is to ensure that the contractor will know the limits of the bottom of the galleries and the required separation (1’ minimum). 8)For information, this site does fall under a Small Site project Category 2, due to the total “new impervious surface area” of 5000 sf, see Handout E72, Figure E for the definition of “new impervious surfaces” & Figure B for Project Classification. Per Jerry Shuster, sizing factor for both Category 1 & Category 2 Site Projects are the same, it will not impact the sizing. The submitted Drainage Report Small Site Project Category has been redlined to reflect a Category 2 site. 9)Please call out material for the storm tightline. 10)If footing drains arerequired, please show them on the Drainage Plan, as well as where the footings will drain. 11)Please provide elevations for the below listed. a.Sewer invert elevations and slope. b.Rim and invert elevations for yard drains and cleanouts. 12)Pollution generating impervious surfaces (PGIS) is those impervious surfaces considered to be a significant source of pollutants in stormwater runoff. For a single family home this most applies to vehicular driving surfaces, i.e. driveways. Please correct the “Impervious Area Summary Table” to limit the PGIS to just the driveway surface area (currently listed as 2000 sf of PGIS), add the difference to the new NPGIS or you can eliminate the table from the site plan. The city provided Impervious Surface Table is correct, displaying a total new impervious surface area of 5,804 sf. th April 17–The impervious surface areas are inconsistent on the submitted sheet set 1-3 of 5, provided by Omega Eng.New impervious areas areshown as5,804 sf and 5,363 sf.The submitted Drainage Report reflects new impervious surfaces of 5,363 sf. Please update and re-submit the 5 page sheet set and Drainage Report,accounting for the driveway turn around, impervious surface numbers and the infiltration system. 13)Per Edmonds Community Development Code 18.80.060C, the driveway approach must be constructed with asphalt up to the property line. Please show this on the site plans. th April 17–Comment above was specific to the driveway approachfor sheet 1& 5 of 5 submitted by Omega Eng. Please label the paved surfaces asasphalt or concrete. 14)The driveway approach width for a two car garage shall not exceed 24’, see Standard Detail E-2.26. Regarding the proposed walkway/driveway, it would be ok to have a concrete walkway from the property lineto the house entrance separating the driveway and walkway in order to meet the city driveway approach standard, as well as to minimize impervious surfaces. Another option to meeting city standards would be to widen the driveway outside of the right of way starting at the property line. th April 17–Please show the driveway turn around on sheets 1& 3-5as shown on the Plot Plan. Please make sure all impervious surface tables are consistent. th 15)April 17–Please add a note: Existingdriveway to be removed and landscaped. Please resubmit 3 copies of the revised plans/documents to a Development Services Coordinator.Please contact me at 425-771-0220ext. 1339 or by email at chris.rivera@edmondswa.govif you have specific questions regarding these plan review comments DATE FAXED/E-MAILED4/17/2015PAGE __1__ OF __1_