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23621 99TH PL W.PDF9 8 O'l 23621 99TH PL W 9 TAX ACCOUNTIPARCEL BUILDING PERMIT (NEW STRUCTURE): COVENANTS (RECORDED) FOR: CRITICAL AREAS DETERMINATION: E] Conditional Waiver Study Required 0 Waiver DISCRETIONARY PERMIT #'S: DRAINAGE PLAN DATED: PARKING AGREEMENTS DA EASEMENT(S) RECORDED FOR: PLANNING DATA CHECKLIST DATED: SCALED PLOT PLAN DATED: V<� SEWER LID FEE $: SHORT PLAT FILE: SIDE SEWER AS BUILT DA SIDE SEWER PERMIT(S) GEOTECH REPORT DATED: STREET USE / ENCROACHMENT PERMIT 4: WATER METER TAP CARD DA OTHER: inn LID #: LOT: BLOCK: L:\TEMP\DSrs\Fom-ks\Strmt File Checklist -doe #P20 CA File No: CRA-Co -tG Critical Areas Checklist Site Information (soils/ topography/ hydrology/ vegetation) 1.. Site Address/ Location: ro 2 99 T11 -pL _ ujC_5-��- a-3:�s VA o(\� D 5 2. Property Tax Account Number: p0-7 16 000Do t5700 3. Approximate Site Size (acres or squ e feet): 8100 ISF 4. - Is this site currently developed? '7yes; — no. If yes; how is site developed? :!Yg 5. Describe the general site topography. Check all that apply. Flat: less than 5-feet elevation change over entire site. Rolling: slopes on site generally less than 15% (a vertical rise of 10-feet over a horizontal distance of 66-feet). Hilly: slopes present on site of more than 15% and less than 30% (a vertical rise of 10-feet over. a horizontal distance of 33 to 66-feet). Steep: grades of greater than 30% present on site (a vertical rise of 10-feet over a horizontal distance of less than 33-feet). Other (please describe): 6. Site contains areas of year-round standing water: 00 ; Approx. Depth: 7. Site contains areas of seasonal standing water: Approx. Depth: What season(s) of the year? 8. Site is in the floodway � Q floodplain of a water course. 9. Site contains a creek or an area where water flows across the grounds surface? Flows are year-round? Flows are seasonal? (VVhat time of year? 10. Site is primarily: forested meadow ;shrubs mixed urban landscaped (lawn, shrubs etc) 11. Obvious wetland is present on site: 1. 2. 3. 4. 5. For City Staff Use Only Pq - I t1i Plan Check Number, if applicable? r Site is Zoned? SCS mapped soil I I Critical Areas inventory or C.A. map indicates Critical Area on DETERMINATION STUDY REQUIRED WAIVER Reviewed 'Qc� 1%9� #.P20 City of Edmonds Development Services Department Planning Division Phone: 425.771.0220 Fax: 425.771.0221 The Critical Areas Checklist contained on this form is to be filled out by any person preparing a Development Permit Application for the City of Edmonds prior to his/her submittal of the application to the City. The purpose of the Checklist is to enable City staff to determine whether any potential Critical Areas are, or may be, present on the subject property. The information needed to complete the Checklist should be easily available from observations of the site or data available at City Hall (Critical areas inventories, maps, or soil surveys). 0 Date Received: City Receipt#: Critical Areas File #: C ;7:j L-��-F <(-,n /,, Critical Areas Checklist Fee:— $135.00. Date Mailed to Applicant: A property owner, or his/her authorized representative, must fill out the checklist, sign and date it, and submit it to the City. The City will review the checklist, make a precursory site visit, and make a determination of the subsequent steps necessary to complete a development permit application. Please submit a vicinity map, along with the signed copy of this form to assist City staff in fimding and locating the specific piece of property described on this form. In addition, the applicant shall include other pertinent information (e.g. site plan, topography map, etc.) or studies in conjunction with this Checklist to assistant staff in completing their preliminary assessment of the site. The undersigned applicant, and his/her/its heirs, and assigns, in consideration on the processing of the application agrees to release, indemnify, defend and hold the City of Edmonds harmless from any and all damages, including reasonable attorney's fees, arising from any action or infraction based in whole or part upon false, misleading, inaccurate or incomplete information furnished by the applicant, his/her/its agents or employees. By my signature, I certify that the information and I xhibits herewith submitted are true and correct to the best of my knowledge and that I am authorized to file this a pl' ti o. e behalf of the owner as listed below. SIGNATURE OF APPLICANVAGENT DATE t V Property Owner's Authorization By my signature, I certify that I have author d the abVve AL/pplicant/Agent to apply for the subject land use application, s a, and grant my permission for the publ. ffic tals an( the staff of the City of Edmonds to enter the subject property for the �c ol I purposes of inspection and pos i g t to this application. SIGNATURE OF OWNER DATEZ 21 12-009 L Owner/Applicant: Applicant Representative: VURO Name iFs i 2 �5 q 9 Street Address ��140pm' qSV20 city Slate Zip Telephone: Ao --' L r.;, 53) ',-) P50 0 'X Street Address Q)teu-(0D&k(A(,,Aj City State Zip ,7 Telephone: 5 6 v, — Email address (optional): - Email Address (optional): Ir- 0 0 CITY OF EDMONDS CRITICAL AREAS RECONNAISSANCE REPORT Site Location: 23621 _ 991h Place West Tax Acct. Number: 00716000001500 Determination: Study Required Determination #: CRA-2008-0016 Applicant: Macie Harezlak Owner: Egis Klimas CRITICAL AREAS RECONNAISSANCE REPORT: STUDY REQUIRED During review and inspection of the subject site, it was found that the site contains and/or is adjacent to an Erosion Hazard Area, pursuant to Chapters 23.40 and 23.80 of the Edmonds Community Development Code (ECDC). GENERAL CRITICAL AREAS REPORT REQUIREMENTS Critical Areas Reports identify, classify, and delineate any areas on or adjacent to the subject property that may qualify as critical areas. They also assess these areas and identify any potential impacts resulting from your specific development proposal. If a specific development proposal results in an alteration to a critical area, the critical areas report will also contain a mitigation plan. You have the option of completing the portion of the study that classifies and delineates the critical areas and waiting until you have a specific development proposal to complete the study. You may also choose to submit the entire study with your specific development application. Please review the minimum report requirements for all types of Critical Areas that are listed in ECDC 23.40.090.D. There are additional report requirements for different types of critical areas (see below). Note that it is important for the report to be prepared by a qualified professional as defined in the ordinance. There are options on how to complete a critical areas study, and there is an approved list of consultants that you may choose from. You may contact the Planning Division for more information. General Mitigation Requirements for all Critical Areas are discussed in ECDC 23.40.110 through 23.40.140. STUDY REQUIREMENT — EROSION HAZARD AREA It appears that this property contains or is adjacent to an Erosion Hazard Area. Erosion Hazard Areas include: 0 Those areas with Alderwood and Everett series soils on slopes of 15 percent or greater. Any area with slopes of 15 percent or greater and impermeable soils interbedded with granular soils and springs or ground water seepage. Areas with significant visible evidence of ground water seepage, and which also include existing landslide deposits regardless of slope. 0 0 .1 DEVELOPMENT PROPOSALS ASSOCIATED WITH EROSION HAZARD AREAS Development within an Erosion Hazard Area must meet additional criteria. For erosion hazard areas with suitable slope stability, the only critical area study needed is an erosion and sediment control plan prepared in compliance with the requirements set forth in Chapter 18.30 ECDC as part of the construction documents. This option is at the director's discretion, per Edmonds Community Development Code section 20.80.050.G. In areas where the slope stability is not suitable, projects within Erosion Hazard Areas will require a report by a licensed Geotechnical Engineer or other qualified professional. Note that it is important for the report to be prepared by a qualified professional as defined in the ordinance. Report requirements are given in ECDC 23.80.050, and more generally in ECDC 23.40.090.D. * Development standards are given in ECDC 23.80.060 and 23.80.070. ALLOWED ACTIVITIES Certain activities are allowed in or near critical area buffers as specified in ECDC 23.40.20. If you have any questions about whether your proposed development qualifies as an allowed activity, please contact a Planner for more information. EXEMPT DEVELOPMENT PROPOSALS Certain development proposals may be exempt from Critical Areas Requirements (ECDC 23.40.230). If you think that a specific development proposal may be exempt, contact a Planner for more information. Jennifer MachL Name Planner Signature Date NOTE: Cited sections of the Edmonds Community Development Code (ECDC) can be found on the City of Edmonds website at www.ci.edmonds.wa.us. -061 PLANNING DATA STREET FILE SINGLE FAMILY RESIDENTIAL Name: - CA Date: -V1 Site Add�resy Plan Check ff: Project Description: 365- e-xZs�r Reduced Site Plan Provided: (0 NO) Zoning: Map Page: —Fco rner Lot: (YES /0 Flag Lot: NO) Pc-o pe4y I z-. VI-b. Critical Areas Determination ff: (—'SA -=Cg--00� Co sery Study Required-> waiver SEPA Determination: Exersph: Exempt Needed (for over 500 cubic yards of grading) 0 Fee 11 Checklist 0 APO List with notarized form Required cks sweet- Side:(,,) Side: 7. sick,* (W -7. Actual Setback5 Gi de- Side qg/ Side: R@W: ex Z�A6�, A-C� "aM C Detached Structures: Nc>,%e- SN�ocarN. Rockeries: ��x Fences/Trellises: C) Bay Windows/Proj;ZgMo'%lation: Stairs/Deck: clex-,\e- ianoc,,n o" QN140%_ Height Datum Point: -T 60 CQ (;S M"C,\e (Datum Elevation: +kC)o Maximum Height Allowed: 63k Actual Height: �Q-ql Offier Parking Required: Parking Provided: Lot Area: 23, 100 p\ Maximum Lot Coverage: 35% Proposed: No c6= = 'e- ons: OL, Lot Coverage Calculati ki"'e, -r06A= *a -+kr. go AckO.'b" C) 10 a auk+ %loo= ADU Created: (YES Subdivision: n :N 06, Vik k e�- Legal Nonconforming Land Use Deterrn�t Ition Issued: (YES Cofnruent5 .Z;.7 k.a.,%-. Plan Review By-. Plannuig Data Rwm 04-1 t 06.doc - 4 REVOCABLE LICENSE TIUS LICENSE AGREEMENT is entered into by and between the undersigned ROSE LESMITH, owner of certain real property described as Lot 9 of Seawood Fourth Addition subdivision, City of Edmonds, Washington, and STEVEN and DEBORAH KIM, husband and wife, owners of certain real property described as Lot 8 of Seawood Fourth Addition subdivision, City of Edmonds, Washington, ("Grantors") -and EGIDIYUS KLIMAS, owner of certain real property described as Lot 15 of. Edmonds Village Estates subdivision, City of Edmonds, Washington, ("Grantee"). The legal descriptions of the Grantors' properties are attached as Exhibits A and B. RECITALS WHEREAS, the Grantee has built a retaining wall which extends onto the Grantors' properties without seeking permission to enter the properties and without seeking the necessary permits from the City of Edmonds; and WHEREAS, the retaining wall is also located in a native growth protection area, depicted on the face of the plat, Seawood Fourth Addition; and WHEREAS, the City of Edmonds has begun a code enforcement action against the Grantee; and WHEREAS, the City of Edmonds 'informed the Grantee by letter dated October 27, 2009, that the retaining wall would have to be removed and the site restored to its preexisting condition; and WHEREAS; the Grantee must obtain permission from the Grantors to enter their properties to perform such restoration work; NOW, THEREFORE, IN CONSIDERATION OF the terms and conditions set forth below, the Grantors and the Grantee agree as follows: TERMS License to Use Propeqy. The Grantors hereby authorize Grantee to enter into said properties for the sole purpose of removing a retaining wall previously installed without the Grantors' permission from the western portion of said properties and for the purpose of restoring the native growth protection area to its preexisting condition before the installation of the retaining wall, including replacement of soil, reveget.ating the disturbed area, and restoring the slope. This revocable license does not authorize the use of wheeled or treaded machinery; only hand-held tools and equipment may be utilized. 2. Term. This grant is a revocable license and may be revoked at any time by the Grantors by the mailing or hand -delivering written -notice of revocation to Grantee, {KNE778992.DOC; 1 \00006.900150\ STREET FILE V- provided however that said revocation shall be effective at the close of business on the day received. This license shall automatically expire on (Date)M/,:�7 ,/.AW unless sooner revoked by the written action of the Grantors. / z 3. Permits. Grantee shall be required to obtain any and all necessary permits and approvals from the City prior to removal of the retaining wall or performing any restoration work within the native growth protection area. 'Grantee shall be required to comply with all permit or approval conditions for the removal and restoration in addition to the conditions set forth in this license. 4. Conditions. Grantee shall comply with all conditions outlined in the City of Edmonds' letter dated October 27, 2009, including but not limited to, obtaining a building permit, submitting a restoration plan pursuant to Edmonds Community Development Code (ECDC) 23.40.240.B, and submitting a geotechnical report consistent with ECDC 23.80.050. 5. Notice. Grantee shall provide 48 hours written notice to Grantors prior to beginning removal and restoration work. 6. Plantings. Grantee shall not plant vegetation during the hot summer months unless Grantee waters the plants. Grantors shall allow access for purposes of watering plants if they are planted during the summer months. Any revegetation should preferably be performed in September or October. Grantee shall replace all revegetation if it dies or is sickly within 5 years of planting at no expense to the Grantors. Grantee shall cover exposed slopes with a minimum of 2 inches of straw mulch and berm up the straw mulch where the fill meets the new block wall. 7. Staking. Grantee shall stake the catch points of the 4:1 slope in the native growth protection area and notify the Grantors when a City inspection should be performed to ensure the original slope will not be further disturbed as a result of the restoration work. 8. Costs - Liens. All removal and restoration work contemplated by this License shall be at the Grantee's sole cost and expense. No portion of such cost shall ever be or become the responsibility of the Grantor while this License is in effect. Grantee shall not suffer any lien to be placed on the Grantors' properties as the result of any construction contemplated herein, and in the event any such lien is filed by any cont ractor, subcontractor, supplier or materialman of Grantee, Grantee agrees to immediately satisfy and secure the release thereof, regardless of whether or not Grantee disputes the amount claimed by the contractor, subcontractor, supplier, or materialman. 9. Indemnification. To the maximum extent permitted bylaw, Grantee shall indemnify, defend, and hold the Grantors harmless from any and all. claims, suits, losses, or liability for injuries to persons or damage to property caused by or arising out of (KNE778992. DOC; 1 \00006.900150\ ) .6 Grantee's acts, errors, or omissions in the exercise of any rights or obligations granted by this License. The indemnity obligations of Grantee shall survive expiration or revocation of this License as to any claim, suit, loss, or liability for any injury or damage occurring prior to such expiration or revocation. 10. Use Permissive and Personal. Grantee acknowledges that the use authorized by this License is personal to Grantee and is permissive. Grantee expressly acknowledges that no such use shall be grounds for any claim of adverse possession or prescriptive use against the Grantors or any successor in interest to the Grantors' properties. This License may not be transfer -red by Grantee to any other person or party. 11. Entire Agreement. This License represents the entire agreement between the parties concerning its subject matter and supersedes all previous discussions, representations and agreements, oral or otherwise. This License may be amended only, by a�ten,. instrument signed by both parties. 1'� DONE THIS day of 2010. GRANTORS By: 412-1110 By: Steven Kim By: &,45n� /71 Deborah kim7--j- "--- STATE OF WASHINGTON) COUNTY OF SNOHOMISH) On this day, personally appeared before me Rose LeSmith and declared that she signed this instrument as their free and vqluntary act and deed for the uses and purposes therein mentioned. ND SWORN TO before me this 9M!9/-' day of 2010. DAZA4 -NOTARY W. Print Name Z.-ta:;11" 17A My Commission expires: &= / A STATE OF WASHINGTON) COUNTY OF SNOHOMISH) On this day, personally appeared before me Steven and Deborah Kim, husband and wife, and declared that they signed this instrument as their. free and voluntary act and deed for the uses and purposes therein mentioned. ....... SUBSCRIBED AND SWORN TO bef me this 62�o day of 12010. %lox N-N .77 ' �' "" -.V� No(rARY 'F� S c5 Print Name My Commission expires: 41V (KNE778992.DOC;1\00006.900150\ } " I 1 4 EXHIBIT A Rose LeSmith Property Lot 9, Seawood Fourth Addition, According to the Plat Thereof in Volume 54 of Plats, Pages 60 through 62, Inclusive, Records of Snohomish County, Washington. (KNE778992.DOC;1\00006.900150\ ) Exhibit B Steven and Deborah Kim Property Lot 8, Seawood Fourth Addition, According to the Plat Thereof Recorded in Volume 54 of Plats, Page 60 through 62, Records of Snohomish County, Washington. (KNE77 8992. DOC; 1 \00006.900150\ ) Bruce S. MacVeigh, P.E. Civil EngineerlSmall Site Geotechnical 14245 59hAve. S. Tukwila, WA 98168 Office: (206) 242-7665 Fax: Same November 23, 2009 Subject: Geotechnical Evaluation for Minor Slope Restoration, 23621 99th Place W., 23618 97th Place W. and 23622 97th Place W., Edmonds, WA General: This evaluation relates to minor portions of following three adjacent existing parcels located in Edmonds, Washington: Egis Klimas '9-X. 23621 99th Place W. PN: 0071600000-1500 Rose Lesmith 'o"YOfEdmo'dBUildingDepgftent.- .1 23618 97th Place W. PN: 0081070000-0900 DT AN A- JL Steven Kim 23622 97th Place W. PN: 0081070000-0800 The purpose of this report is to evaluate the soils on the sloped portions of the above properties in order to properly engineer the removal of a portion of large block retaining wall and restore the toe of the slope for long term stability. Only a narrow strip at the toe of the slope approximately ten feet wide will require restoration. Related engineering plans for the wall removal and restoration have been prepared in association with this evaluation. Each of the above parcels has an existing single family residence. The.slope restoration will not affect any structures on the parcels. Based on field investigations and soil logs in the undisturbed portion of the sloped area, the restoration may be completed with confidence that the restored portion will have long term stability equal to better than the natural vegetated sloped areas uphill from it. R 71� � C F— D � /J I Attached is a Parcel Map showing the affected properties. MAR 3 12010 DEVELOPMEW SERVICES Cn, . CITY OF EUMONDS STREET FILE Site Geology Information - Topographic Data: As part of a previous residential remodel permit for the property at 23621 99th Place W., a formal topographic survey was prepared for the site which mapped the lower portions of the sloped area. This survey was prepared in 2007 by Richard Vaisvila, P.L.S. It is the basis for the topography used for the restoration design. Based on field observations during the site visit by this office, the upper portion of the sloped area was mapped. While not as precise as a formally surveyed topographic map, it is sufficient for the restoration plan. The following general measurements represent the geometry of the slope: Total height: 20 feet (approx.) Total horizontal extent: 80 feet (approx.) Average slope: 25 percent Note that the horizontal extent represents a projection of the slope to the original toe of slope through the area removed when the wall was constructed. The surface of the undisturbed slope is vegetated with a wide mixture of larger (up to 12 inch) established trees of various types, smaller younger trees, brush and some areas of minor ground cover and duff. The surface in detail is characterized by a very irregular "hummocky" pattern with irregularities of up to two feet typical. This is the result of long term surface disturbances caused by individual trees falling over time and surface water erosion or gravity slope failures in patchy small areas caused by the varying ground cover or other surface conditions. Attached is a portion of the Slope Restoration Plan showing the slope topography. Site Geology Information - Subsurface Data: The source of information to evaluate subsurface soil information was a pair of two hand excavated soil logs in the undisturbed portions of the slope. The material found was a uniform very loamy sand to depths up to two feet. Additional information was gained by the observation of the cut soils at the toe of the wall area, representing a depth from original surface of two to four feet. These soils were of the same type as found on the surface of the upper sloped area. A reference to the Snohomish County Soil Survey indicates that the series represented is the Alderwood Series. This series is comprised of a deeper dense clay layer overlain at depths of two to ten feet by a porous sandy or loamy material. The varying depths would be the result of original glacier placement, followed by surface erosion over time. Attached are the Soil Logs and an extract with map from the Soil Survey. Site Geology Information - Site History: The level portions at the top and bottom of the slope represent more or less original surface, with minor cuts and fills to allow house construction. The sloped area is likewise in original or near original condition. The residences all appear to have been constructed within the last twenty years. Note that the surface vegetation would represent a second growth forest, with possible thinning of unstable trees during residential construction. The topography of the steep slopes observed during the site visit indicates no evidence of catastrophic slope failure in any area. Long term very slow surface movement has probably occurred historically along the steep slope, but has been un-noticed in its earlier rural or undeveloped uses. Significant movement of the surface soils down the slope, especially in an undeveloped condition, would be measured in decades. No areas of obvious surface erosion or tell tale exposed surface soils were observed. A specific indicator was observed which supports the above very slow movement of the soils. While not predominating, several younger (40 years old or less) "curved trees" were noted, indicating general slight surface movement. It is the restricted limits of the affected trees which provides actual evidence of inherent surface soil stability. This stability is provided by the geometry of the undisturbed slope, and the inherent strength of the undisturbed loams at the surface. Site Geology Information - Seismic Hazard: Seismic hazards for slopes may be comprised of either general soil saturation or classic seismic liquefaction. With general saturation, failure occurs in either a direct diagonal slippage (shear failure) or at a saturated layer of loose silts which semi -liquefy and "pour" out of their original location in the hillside. The soils of this area do not appear susceptible to this mode of failure due to the generally dense impervious nature of the deeper soils and positive slopes which prevent surcharged saturation. While the above cause of hillside failure is not limited to seismic movement, a seismic event could possibly trigger a failure which would not otherwise have occurred, however this is unlikely. As noted above, there is no indication on the site of this mode of failure occurring previously on this site or in the surrounding area. Based on the above, the possibility of hillside failure by this mode of seismic failure is low. The second mode of failure is caused by a water saturation of a uniformly graded larger grained non -cohesive soil, which in.this condition is subject to seismic movement.. For the slope areas in question, the possibility of full saturation of any layer is not present. In addition, the soils as noted are not of the type allowing this type of movement. The possibility of seismic movement is, of course, more significant with a sloping site, however, the possibility of seismic liquefaction failure for this hillside is negligible. Based on the soils underlying the site, the potential for seismic liquefaction settlement is very low. No special mitigation measures are recommended for slope restoration on this site to mitigate seismic liquefaction. Geotechnical Engineering Information - Slope Stability Studies and Opinions of Slope Stability: No previous slope stability studies are known to have been prepared for this site. As noted above, the site appears stable and not subject to long term erosion or catastrophic failure. The topography observed during the site visit indicates no evidence of catastrophic slope failure in any portion of the hillside. Long term very slow surface movement has occurred as is typical with any hillside with significant slopes. Some of the younger trees indicate the telltale curve of their lower trunks. The movement is very limited and would not produce a noticeable result within the lifetime of any proposed structures. Significant movement of the surface soils down the hillside would be measured in decades or centuries. No areas of obvious surface erosion or tell tale exposed surface soils were observed on the hillside. The hillside above this site will not be disturbed by the construction. Reference slope stability, it is the opinion of this office, based onconsiderations discussed above, that the existing slopes are geologically stable for the intended use, and restoration with similar soils with proper compaction and revegetation may be permitted. Geotechnical Engineering Information - Proposed Angles of Cut and Fill Slopes and Site Grading Requirements: Only slight to moderate earthwork will be required to restore the base of the sloped area. The following guidelines are provided for general information. The normal maximum cut or fill slope with this type of material would be 2:1. All finished slopes are specified at 25 percent or 4:1, representing a conservative slope design. During temporary excavations a vertical cut face is acceptable. While not likely for this project, for deeper excavations, with potential cuts up to eight or ten feet in depth, it is recommended that cuts be backsloped at 1:1 or flatter at depths of more than four feet, per standard practice. Site grading should follow standard practice as regards erosion control, stockpiling of soils, and minimizing the areas to be cleared and disturbed to that necessary for approved restoration. Significant structural fill will be required for the restoration. It is recommended that for the replaced soil the following guidelines should be followed. Place non -clay materials in maximum 6" lifts, and mechanically compact to approximately 95 percent. Revegetation of finished slope areas should follow good landscaping practice. Specifications for new vegetation are provided on the Slope Restoration Plan. Geotechnical Engineering Information - Structural Foundation Requirements and Estimated Foundation Settlement: While no building foundations are proposed as part of this project, a foundation bearing pressure of 2,000 PSF is suitable for undisturbed soils for this site. While no formally designed retaining walls are proposed for this project, it is possible that a minor rim wall one block in height may be placed at the restored toe of slope. Should formal wall calculations be required, a lateral resistance factor of 0.40 for lateral loading may be safely used for design of structural retaining walls. Long term settlement is not a concern for this project, however the properly placed soils at the toe of the slope should experience no significant settlement over the lifetime of the adjacent residences. Geotechnical Engineering Information - Soil Compaction Criteria: Loam soils on site are suitable for all structural fill in a dry or damp condition. Compaction in restored area should be to approximately 95%, uniformly and mechanically compacted. Formal soil testing of soil compaction is not required. Spot observations by the project engineer during soil placement will be sufficient to verify adequate and proper soil compaction. Geotechnical Engineering Information - Proposed Surface and Subsurface Drainage: Since this is restoring a portion of original hillside, no drainage measures are proposed or felt necessary. The steep surface slope and moderately porous soils will allow drainage equivalent to original conditions. Geotechnical Engineering Information - Proposed Use of On Site Sewage System(s) This site is served by public s6wer.and..does not require the use of OSS systems (drainfields). Geotechnical Engineering Information - Lateral Earth Pressures: As mentioned above, no significant retaining walls are proposed as part of the slope restoration. Due to the dense nature of the in place soils, as well as the reliably compacted replaced soils, an active design lateral pressure for retaining walls of 35 PCF is suitable, with an at rest lateral pressure for foundation walls of 60 PCF recommended. All walls over 4 feet in total height must be designed by a licensed engineer and use the 1.5 safety factor per accepted practice. All walls with a soil surcharge will require consideration of the surcharge, to be determined as part of the specific wall design. Geotechnical Engineering Information - Vulnerability of Site to Erosion: Undisturbed bare soils on site are moderately subject to erosion. Disturbed soils are subject to significant erosion. Disturbed soils on or near the slope areas are subject to heavy erosion. For the above reasons the exposure of disturbed soils on or near the slope areas should be protected with straw or tarping if left exposed for more than one Week during the wet season. All disturbed areas must have properly installed silt fencing on their downhill side. A standard stabilized rock construction entrance will be used on site to prevent mud and silt from the site entering the street drainage system. The latter may be omitted if suitable equivalent measures are in place relating to the driveway construction at 23621 99th Place W. With the use of erosion control measures, as mentioned above, the proposed construction should be able to take place without significant erosion to the site, or the transporting of silts off site. Geotechnical Engineering Information - Suitability of On -Site Soils for Use as Fill: The native loam materials on -site are suitable for structural fill in damp or dry weather, with mechanical compaction required in structural fill areas, as noted above. Note minor quantities of clay in. some existing soils prevents their use for deep structural fills over one foot deep. Clay soils may be used for non- structural fill, with the understanding that long term settling may occur proportional to the depth of the fill. This may be evaluated on a case by case basis during construction. Geotechnical Engineering Information - Laboratory Data and Soil Index Properties: Field testing was done of soil samples encountered. Used were both wet and dry techniques. The soils were found to be a loams and dense loams, in the areas and depths indicated above. Formal laboratory testing of soil samples was not deemed necessary for the evaluation of site soils for this site and type of construction. Geotechnical Engineering Information - Building Limitations: The construction of the restored slope area may take place during wet weather provided the above specified erosion control measures are strictly employed. Arbitrary wet weather restrictions based on specific dates for this site and its development are not recommended. Providing the above recommendations and construction criteria are adhered to in the design and placement soil fill at the toe of the slope and related site work, no site related building limitations are recommended for these sites. Note that no dewatering procedures should be required for the site. Summery: The site is suitable for slope restoration and fill construction. Drainage of impervious surfaces is not considered in that none exist for this project. Statement of Risk: (Intended to comply with TIVIC Risk Statement Requirements) The general slope of the site is typi cally about 25 percent in the construction area. The total difference in elevation of these construction areas is up to approximately 3 to 5 feet. The steep lower slope is vegetated and is not projected for disturbance. The level of projected disturbance, combined with the stable soils noted above, indicate that the site, and the surrounding properties (which are all similar), is not by definition a "geologic hazard" area and that additional studies and construction restrictions relating to geologic hazard areas do not apply to this project. In addition, the construction as proposed is so minor as to not pose a threat to public health, safety and welfare. The construction may occur with no greater threat to the site or to adjacent properties than if the site were level. The plans and specifications submitted for the proposed slope restoration and fill have been reviewed and conform to the conditions and recommendations in this evaluation, specifics noted above, and provided that the conditions and recommendations are satisfied, the construction and development will not increase the potential for soil movement; and the risk of damage to the proposed development, and from the development to adjacent properties, from soil instability will be minimal (a very low possibility of risk). Questions relating to this report and to site related problems which may arise during slope restoration construction may be directed to this office. 44 Bruce S. M<aceigh., P.E. Civil Engineer klimas09/0929 18657 ZMES: 4W // Z-3 //-014/ ,C,Snohornish C-ounty.0n,11he Pro rtyjnf6r- Wjp� ow nt X '01 C p.ei m all, . If ern et E p http://gis.co.snohbmish.wa.us/ma'ps/pr000rt�.'/�����i��4�e.�t:m Pop-up blocked. To see this -pop-up or additional options clickb ere... Snohomish Snohomish County Assessor's Offic CountyA&%, Snohornish'County 0 1 Mine Property Informatii Washington Freque C3 NORTH 007160000102�01- C] 2008.Sales 0 007WO0001700 008107400001000 D es Find Parcel Number:, IG 0084370000i, 00853700og 200 00716000001600 'Go to f0700000000 Select a city Locate Address MaoAction. DOV0700000800 E A P071P000.091500 oD?J6000Kt36o 00716000025 00 007160r00001400 ioorn in Zoom Out I ' , 7 T Y �007,jiioo6doj�oo 0081670000076 007160000020 IOD 0 MoLe. Map ..Full View Refresh. Map Previous Map 0 0716000001100 Map Layers: 00716000001000, 00716000000900 some layers disabled when zoomed out 13 CotorAerial Photo 00810700000500 0 2 Tax parcel numbers .0071600 00716DOW02700 - 7 a O.StreetAddress 67 is 6 6 A, SOUTH Map Help > Zoom In. c k once on the map, or click and drag to redraw at a larger scale Done Internet TerraServer Image Courtesy of the LJSGS 1=1 USGS � 0, --J25 m 0, '25 yd "f ernis of Use Privacy Statement i errazerver image k-ourtesy 01 Lne u 3kj3 ZUSGS Oil g;,­ij"_.a6 Jim f all, I a IN j 40, 0 Cho)lie it r i IN 41. I= W1 pa ber MC im A �Ni IN IN 0." of ` IN 1N Is Z,�? 1314- Ak 0 8 61 IN _A, All p I q - - IN, n IN IN Ar, AI Ip 44 %1 _!w, low 4 W ft IN Nj A V. i� _v r�lrlol Wf� Ni: �Tor �14_jlf S1 H 4: I - ill , 4 1! 11,�'N ". i t� " OMISH "M I XM a NO too V ANN. 00 77 Ron i `j IN ILL 01 5K 0. 25M 1 Do age c uo i tt�sy, the UtS� Survey i Terms of Use Privacy Statement A il 110 f)D* to., j)D oe"o HEDG w N 89'44 W 60.00' FOUND 1/2- R EBAR Y/CAP .944 G- * 4 INC. LS X;<485 _17 0.11,N 0.1�,W:: Z z . . . . . . . . . . .. .......... Z e . . . . . . . . . . . . ... /?. *.". , ". 101;�,�/- .... TRACT-995 .10 . . . / A, ............. ... ............. 0 Fl� io,:, � . . . . . . . . . . . . . . . . . . . . . . . . . . . . I Fj� --FO 2- BAR ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . /A tpt) . . . . . . . . . . . 0 . . . . . . . . . . . . .. . . p ........... . ......... SE W D .......... ........... ............ . ........... FO RT .......... ..... 15* BIRCH * . A. 0. 0. . . . . . 10* . . . . . . . . . ........... .......... AD IT11 N ..... .... .......... 14 v .......... 7 ui 7r- w zz ul p EXISTING HOSE. b Do -,a J(P EXISTING.. HOSE to DECK S- \ 1� I m L�T 14 0 z LOT' 15 Jib 89 7FOUND 1/21 'N G-4 LS 48 ,.2!D Do 0.. R 'O.07'W 1. WIN 6' WOOD FENCIf Fl LIDT 10 L -O\Tg�, low A V>qw--� Pit, PITT is TAT to .,j:j&nk Y j--, j most - Qwo�* 1 "in Q -7 10% w V OM dim Soil Map -Snohomish County Area, Washington klimas upslope Map Unit Legend Snohomish- Couniy.-Area, Washington, (WASSI) Symbol ;.,..jA�pVnIt Narrie. Acrea� I . n:AOI m6 t-0 AOI 5 Alderwood-Urban land complex, 2 to 8 percent slopes 0.3 9.2% 6 Alderwood-Urban land complex, 8 to 15 percent slopes 1.4 39.4% 17 Everett gravelly sandy loam, 0 to 8 percent slopes 1.8 51.4% Totals for Area of Interest 3.6 100.0% USDA Natural Resources Web Soil Survey 11/18/2009 2" Conservation Service National Cooperative Soil Survey Page 3 of 3 Soil Map —Snohomish County Area, Washington (Idimas upslope) MAP LEGEND MAP INFORMATION Area of Interest JAOI) M Very Stony Spot Map Scale: 1:821 if printed on A size (8.5" x 11") sheet. F7, Area of Interest (AOI) Wet Spot The soil surveys that comprise your A01 were mapped at 1:24,000. Solis EJ Soil Map Units A Other Please rely on the bar scale on each map sheet for accurate map Special Line Features measurements. Special Point Features Blowout Gully Source of Map: Natural Resources Conservation Service k1i Short Steep Slope Web Soil Survey URL: hftp:/twebsolisuivey.nrcs.usda.gov cm Borrow Ph Coordinate System: UTMZonelONNAD83 X.. clay spot Other This product Is generated from the USDA-NRCS certified data as of Political Features the version date(s) listed below. Closed Depression 0 Cities X Gravel PH Soil Survey Area: Snohomish County Area, Washington Water Features Survey Area Data: Version 6, Sep 22, 2009 Gravelly Spot Oceans Date(s) aerial images were photographed: 7/24/2006 Landfill Streams and Canals The orthophoto or other base map on which the soil lines were ,k Lava Flow Transportation compiled and digitized probably differs from the background 46 Marsh or swamp Rails imagery displayed on these maps. As a result, some minor shiffing of map unit boundaries may be evident. 5t. Mine or Quarry Interstate Kighways 0 Miscellaneous Water US Routes Perennial Water Major Roads Rock Outcrop LocalRoads + Saline Spot Sandy Spot Severely Eroded Spot 0 Sinkhole 1) Slide or Slip 0 Sodic Spot a Spoil Area 4) Stony spot USDA Natural Resources arm- Conservation Service Web Soil Survey National Cooperative Soil Survey 11/18/2009 Page 2 of 3 3 § "tip, Pei v 'NNkl 11 W-i SOIL LOGS - 23621 99th Place W., 23618 97th Place W., 23622 97th Place W., Edmonds, WA SLOPE RESTORATION Novembr 17, 2009 Engineer: Bruce S. MacVeigh, P.E. PURPOSE: To verify general soil conditions in existing slope above the restoration area, and to determine design parameters for structural soil engineering. SL 1 0-24"+ Silty Sand w/some coarse sand cobbles NO MOTTLING OR WATER ENCOUNTERED. SL 2 0-24"+ Silty Sand w/some coarse sand cobbles NO MOTTLING OR WATER ENCOUNTERED. N OW44 60.00' ................ ..................... .... .............. V. Fat . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . . ........... ........ .. .......... ...... .... S 0 .......... .......... 10 RT 5 ........... .......... .......... AD ITI . ........... ID(MIING HDSE EXInNO. HOSE DECK . L)T 14 40 LOT 15 89 a' WOOD 'EN FUR LOT 10 LOT IE PLAT THEREOF SHINGTON. . ',.,7 .. : , - . -�7 / 7 4.� 41 .4:.- 1-),r,?A /.A/ X,�, 7YPC Z- 7, 7 HE 36E�W 89, W 6 00, 1 UND 1/2 IEW Y/CAP 485 0.1,1*N 0.1�,Wi . . . . . . . . . . . . . . A . . . . , , , * . . . . . /,/ . . . .. . . . . . . . . . . . . .. . . . . .. -T RACT -995 ..... .. R FOU Y/cj -229 4,120 V ...... SE W D FO RT .......... 10 - ..... 10* q /'01 AD ITI N I'v/ C 6 Zo b� v All APPRUVED BY ENGINEERING N 7" b 0' Drainage Flow Plan only. Refer t separate drainage plan for CIE. requirements. 7 < 0 W yc� ECK� 0- LF 14 A 711" LO' LEA, DRYW,51Z,,� 117, 612,Q11—�=L WX YJ-, CE W/ VR 89 FOUND 1/f R 60 'WOOD-- FENct VCAP G-4 LS 94 MR 3 N. 0.6�'W 11DOWN. IA�Zb, 71j Z"JA .110 -7Z -71. LOT 1.0 LOT rh 1/11 W WWI 9 n, 0"T '2 12009 M L BUL CWOCIREMACV 0 DATE: q - 9 -7 - 2,C)( )9 owner of X_ Lot 14 of the Plat of Edmonds Village Estates and co-owner of the Access and Utility track with Lot 15 of said Plat, hereby expressly grand permission as necessary to allow the installation of a minor drainage line for the purpose of routing side drainage from Lot 15 to the City of Edmonds public drainage system in 99th Place West. It is my understanding that the original creation of the track provided for common use for drainage purposes. jgq EDMONDS VILLAGE ESTATES SEC. 36,9 TWP.. 27 Mail ROE. 3 Eas g We Me 3NONON18H COUNTY, WASHINaTON Vj DESCRIPTION ThOm portions; of the North 1/2 of the Northwest 1/4 Of the SOuthfast 2/4 of Section 36# Township 27 North, "a 3 East, W.M., in Snohomish County, Washington, described as followal Commar.11C at a Brase Cap Monument marking the Intersection of the west lint of Said Northwest 1/4 of the Southeast 1/4 with the centarlLne of 238th Street Southwest extended westerly, as shown an the plat of Fir Mmadowso recorded In Volume 15 of Plats, Page 62# records of mid county; thence North 0118040" West along the vest line of said subdivision, 373.98 feet to a Monument marking the southeast corner of the plat of Pir Meadow No. 5, recorded in Volume 17 of Plats, page 40, records Of said County; thence thasm North 0*18 103' West &ION M14 wast line and the east boundary of mid plate 304.37 feet to a point on the south line of the North 195 feet of " subdivision, said point being hereafter referred to as Point "ej thence South 89*43148w East along mid south line, 62.65 feet to the westerly margin of 100th Avenue Westj thence South 6105-17" West along said road margin 130.00 feet to an angle point thereqn; them continuing along said road margin, South 6636'234 Kest 176.06 feett thence North 89*48'46" West 27.01 fast to the POINT OF 11031NNING. AEM, OMQBXDG at mid Point *e; thence North 0-18'03" West along the mat line of said aLtdivision " the east boundary of said plat of Fir Meadow MD. 5 a distance of 195.01 feet to the north line of said subdivisiml thence South 89043488 East along said nor line, 144.73 feet to the PODM OF Bu3nown on the easterly a"In of said IDOth Avenue West; thence continuing South 89'43'48" Ent slow said north line, 72D.08 feet to the southwesterly noagin of 236th Street Southwest; thence South 44-43'57* Ent alang said road margin 42.43 feet to the northwest corner of [at 1 in the plat of Fir Meadow No. 2# recorded in volume 17 of Plate, page 9, records of said countyl thence South 0-15'54" West along the boundary of mid plat 450.01 feet to the southwest Omar of Lot 22 In mid platj thence North 99-46'05" Want along the I ary of said plate 199.77 feet to the northwest corner of Loot 6 in said plat; thence South 01131321 West along the mcat westerly boundary of said plat of Fir Meadow No. 2 a distance of 187.53 feet to a concrete onnusent marking the southwest corner of said plat; thence North 89*481461 West along the north boundary of " plat of Fir roadowor a distance of 608.63 feet to intersect the " isterly boundary of said 100th Avenue West at a point on a curve from which the center I= South 99-27-56- East 2118.01 feet distant; thence northerly along said road margin and mid oum to the right throug?i a central angle of 5*33'13" an arc distance of 205.30 feet to a point of tangencyl thence North 6*05117' East along said mood margin 466.02 feet to the Poxim OF Bammmu. EASEMENT PROVISIONS An easement is hereby reserved for and granted tO:SNC1PQ' No. 1, GBIMIAL Tazwm wmr of the NcImmesT, iw..Wid ammic viW mbat-.qXp%cr (sewaz� and water), and their respective successors afd the exWior 7 feet parallel with and adjoining the street friptagel ot all',lot)j in; which to install, lay, constructe rwwvt operate and mintain WdOrgLyLve OOMAIJtss kables, wirm and water services with necessary facilities om other eqApmbnt for tXrpo."L.:f serving this subdivision and other , , - rty wit_V eltictrici te1#01", and together with the right to enter upm the lots &6 all Umes Iar the ;bfpOsm herein stated. 1. lb I ins* or wires for the tranuqXssiqn of iclectric or qurent: Or for telephone use, CAIV, fire = police signals, or fed OtIA , . f khall be placed w permitted to be taced reoll in r ;=71 upon any lot outside the Idid?s m;"s ".:saw shall be underground conduit attactmad to the builknexi . 146.. - An easement 13 hereby reaervad far . grabied -Anohoemisg County P. LLD. No. I, General Telephone Company of the North Inc. . 01 Wylew way..Di3tri I at across, under " upon the Mvak llqx� :dft &-ts rj 9, S. OAJW-7 feet at those Lots othiCh OhU+ said TrOChl M ZRAS sewirds'.xi 'kudy se"iees. install & '—W_ RBS:rRICTIO NS No lot or portion -of A 74 in pla� kh4l be-d1pided and sold be resold Or ownersUp dwiged or tranof4r=4 W*Feby VA casIphij of-lonjI pbrtion of this plat shall be less thsa the arep! -Fwgired for ps, des -0isuoIct in Which, located. No further subdivision of any lot = 6�julsxittiro —.f-WA1pIaX procbdure. Prior approval wast be obtained from the Lxvx:4r t0i?ublic )QbrkA be4or%-WV stactures, fill or obstructions, including fences, ard loca%ed within any drkinage abm�*IIV'or delineated flood plain ares. Ali areal er�ir,,pubIIc,1r1ghtq_of-Vay shall be maintained by the developer and his j%. dowtd% 090ADU 3, 4, 5, & a and the cieners of -lots 13, 16, 19 & 231, and may%be reduced & eliminated it deemed necessary for = datii�tal to County Mad lot In this subdivision shall be permitted Ir? 100th Avenue West. Tom " th place, Vk3t. IC6A.410i'.' :." ". ALL MIX Of THE39 fRF$973 that we the undersiSned, 0~3 In fee 'simple Of the land "Iatte�', harab,�Akclare this plat and grant and corwey to each [at Irs th(3 plat an i 1. undiv �d interest in the private accesi rand shown hereon for ingress, eir#311 a naga % makutillebres to serve the respective lots with the right to mks al I necessary slopes for LAND SURVEYOR'S CERTIFICATE. . cut.% and 111113, and the right to continue to drain sold road over and across any lot I hereby certify that-th is plat offoRONDS VILLAGE BOTATIB is based upon � aotlu'al surve� and subd I vision of Section as . Iwp. or, -N., Range a E., W.M., that the' distances IsFo—mcirrectTy—TWe—reon, that the I 1< the e c urses and are monuizent: aal at I h.": wil 11, pt lot and block corners staked correctly on the ground and th fu I IOU '61th the provisions of the platting regulations. - 1. '..r at 'ce nd 1% dLrP to U. K. ROUPO. FrOrL4nd Su"eyor Certificate No. 9435 All property owneris shal I have common shared access to Private flood. Tracts 991, 992, 95 998 gire dedicated to and shall. be maintained by the a viUag* Estates Is Association. Tract 990 is dedicated to the owars of Lots 17 and 18 as commoroPilbooss. Tract 994 is dedicated to emawm of Eatq 6 and 7 as common access. Tract-995,4a dellceted bo'the can= of Lots 14 and IStas commoin &==. Tract Tract 997 in dedicated APPROVALS Examined and approved this dy-.f A�61 19 a. M is dedicated to the amews of LOW 24 and 25 as amon access. to the Owners of Lots 20g 21, and 22 as common access. Tract 999 shall be retained by the undersigood as Wvate ownecohilf. IN WITNESS WWREpF we have set our hands and seals. banonacurn I rec: r, t offj��.Jpf ty Examined and appmued this W-0 LILLY Be SUNDEt AS HER SEPARATE EST&T�ff_ anotaush county Engineer zm—nes and appr-ad �6y 4" 4W2 --e I 1. 1. e fdD oct JI ­`1A % Chr.45hohow""' county 0 TR 5a Cz R ii F !.0 A �111 L2) FILE 11 reas�rer �f 56homi sh' . �ounty, Washington. do hereby certfy,,a5,T8EET t .0 .1. 1 deigrited t7eict. of Und have been paid. up to and includ�ng the year OCT 0 9 2009 8 Y'. County Treasurer T Chijor uep�ty 3nonomisn 8?04145002 R94PdRDING'.9111111TIFICATE ­w` Is -.!I ledk fo record it the re est Rq"? ra"R this /f day of aph; 19 minutes past 4 of Plats. Is segaty, and recorded in ,:tsL records of Snob Washington. ;% �)Whqplsh Founty Auditor 7F W.' Me what -At BY: I%= ; , . . Us uty Ahoin`Wn roun"tyAuditor .,bROU?. FOUR. INC. 6 c(O a ACKNOWLEDGMENT STATE OF BULDING RTMENT COUNTY OF CITyapan-ONDS == as. This Is to certify that on thi day of dqaA_. 192L. before me, Arsonally the undersigned.la Notary Publma appeared ULLY A "&Off, 43 bLifff -1thin 4WI$ 9M to me known to be the Individual Who executed the V - dedication, and #Mowledgao me that she signed and sealed the same as her voluntary act and deed for the uses and purposes therein meitioned. WITNESS my hand and official seal the day and year first above written. r4rA notary Public state - a� Residing at fA___." SHBET I OF 2 SHECTO ZA 9104101 EDMONDS VILLAGE ESTATES FIA MjEADOWS NO. J SEC. 36, TWP. 27 N., RGE. 3 B., W.M. u. x.. RotLpe, Pro. nnd urvFyor VOL 17 x pa 40 C ficate-No. 943S SNOHOMISH COUNTY, WASHINOTON 13 RA 44 AZHVl0,tQ FL41,T SAADEN T. CTI a" fmLwlmnj'r3.-- FORAM JT (VACATED) r. no 00 'Ot w jam W. "", �-Klx 18 "IT 19 sm at J'p QM as N "m " �! q fl 00 1 N a ja0O 10aw fA3T .3rd lbTA 7S50 Ulu 43W 17 4mv Emlt-- -'sk - . INP1,04 N . 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VOL ;s 1-i se SHEET 2 OF 2 SHEETS JOROUP FOUR, INC. 81-6005 zk*104101 0 0 A44 0, ED�j 0 October 20, 2008 Mr. Kim Steve 23622 97h Place West Edmonds WA 98020 Mr. Egis Klimas 23621 99th Place West Edmonds WA 98020 CITY OF EDMONDS 121 5 1h Avenue North, Edmonds WA 98020 Phone: 425.771.0220 - Fax: 425.771.0221 - Web: www.ci.edmonds.wa.us DEVELOPMENT SERVICES DEPARTMENT: Planning Division RE: PROPOSED TREE REMOVAL AT 23621 99TH PLACE WEST/23622 97 TH PLACE WEST. Dear Mr. Steve and Mr. Klimas, Thank you inquiring about the potential of tree removal on your property. Because your property contains a slope of over 25% (approximately 25% slope across the two properties), a tree cutting permit would normally be required for any tree removal, pursuant to Edmonds Community Development Code (ECDC) 18.45.030.A.3. The two trees are at the base of the slope, which qualifies as a geologically hazardous area ("erosion hazard"). I met with Mr. Klimas and agree that there are two trees that appear to be hazardous (see photos, attached). These two trees may be removed without a tree cutting permit pursuant to ECDC 18.45.030.F. I have attached a map that shows the general location of these trees that I observed to be hazardous. These two trees are leaning at an approximate 75' angle and are located at the base of the slope near the Klimas property. They are approximately 50 feet tall and are located approximately 20 feet from the house. Because it is unclear whose property these two trees are on (they are both located very near a fence), the two property owners will need to work together on this to authorize any tree removal if they both wish to remove the two trees. If you plan to remove future trees, please contact the Planning Division to inquire about a Tree Cutting permit which may be required. You may also wish to collaborate with a geotechnical engineer if you have slope stability questions. I would be happy to work with you if you have any questions. I can be reached at 425.771.0220, extension 1778, or via email at cocciaAci.edmonds.wa.us. Sincerely, Gina Coccia Associate Planner CC: Street File Enc. Photos of hazardous trees submitted by Mr. Klimas. Parcel/LiDAR/Aerial map indicating 2 hazardous trees approved to be removed without a permit. Tree Cutting Permit handout. LE ST 4w JIL 4"v4,, A 4 iv "4 4rr j�w t f, 7V -1 %( j1p IWO 1;, 7 Kw 01 7 jtl�, 4, ta " tl 51 "J F. "�7 4, �Z g 4m- 197 u%70- I.A ja AW� -A Jt, WAR , '107 IF -V AV. Rt, -1-pok uw,�& 47'x 0 W-2. X ji� Z.4 -4 4yl 'S 9� 'w, )WAY 232ND ST SW F" ;,132061 123206 9516 9924 c*4 -j 9624 23206 SALEM 00 4(L U) LUTHERN T 23214� I im 23215 23214 23215 z x z 23215 PARKING ui 0 CHURCH 9906; ;23216 0 9828 Ul 23221 23220 > �525 23217 23227 23228 23228 m — - 233RD ST SW 23301 23308 23316 im 23 0 cq cl co C4 4.3 4� 1 23315 23318 9 z I GYM CL 23315 i to, 9 (L 23319' 9 00 '211326 23327' 9623 OFFICE W I 1-b BOILER 23406 234201 c* 9622! KIT 0) 00 t- r- c', C4 I c,- a, cp I W) Zn: --4TH CD 49410- 23 In .2�, , '00" 23414 (" Vt 13:: 9624? 23422 Z" C, w a C-4 m. 2, 23422 23415 0 1 2340 Comm u) P 7 cono - - 9626 23424 LLI -W) 08 , . -.- > 3430 LIBRA 0) RY -* ; < 235TH ST S' -76235T IN) ul 2 504 Ln 5,6(jbl I � 3 F , ; 95269514(o '2 0 9808 : .. (n 5 r-- 23417V L -2351 9810 ;23512 5TH '-PL H '-p L 14 23 'o 2351 51 0) 9812 23 TO 42 23513 0) 23511 C, 51 2351 r ?2351 al -,23520 23521 i cm4 W U) r- col 2361H.PL C4 0 23521 NI U) ID 04 co w ID co r- Lo C, 'o I C4 cm 0: C3 23529 'm -m cn, Go cl) 00 Go U). 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V, ............ 14-1 . ............ .... ....... N SE ....... ......... c4 D 61. Is,.. . () ......... . .......... q, (9 FO RT ............. . .......... . . . . . . . . I . . 15" BIRCH* Is 10V AD IT11 N .......... .......... .. .......... ......... ... . 0 e. . . . . . . . Ui .7 ZZ 7 A' z/_ !0 L0 EXISTING HOSE, 0 DOD, z I (P EXISTING.. HOSE 00 7ar W DECK T LPT 14 z t2 C.) * 11 .0 LOT' 15 4 . 9 W. FOUND 1/21 R 6' WOOD IFENCE. FIR 18 VCAP G—, 4 LS 948 ­�93VO.07V 1 2' OWN FIR Nz OT 0 L 110 L O\Tk"", Z0, 0 /-;/) z 4 12,6� 6 6 /Y K_ 12 19 P115 -57eA 771_`:A� AO 1 ( 1Z 25A , ) /VE I/V / 1/z " VIAI�E /V�q n E 5 0- Z' 9 11!514 I'J /f =2_=PZ4 At 7- _EX, -41 A/ 7 ele��A941?S 0 — 2 " S'P4 C IN4 H.LE/11NO /Z)W VL/A// 4 , J /V10 �rE�r 17ES�54fL W1 _57/4/)H /VJ/y !::CkA5C�' 44 V,�_7 P JIVI S_Z_k,6 tA/ Z) 12 14 LIZ e4l, Al OWNEWCONTRACTOR IS RESPONSIBLE FOR EROSION CONTROL AND DAMAGE Applicant & hall repair/replace all damag to utilities or frontage. Improvements in City right-of-way per City standards that is caused or occurs during the permitted project. 1. Applicant shall provide 48 hours written notice to the neighbors (LeSmith and Kim) prior to beginning removal and restoration work. 2. Applicant shall not plant vegetation during the hot summer months unless Grantee waters the plants. The neighbors shall allow access for purposes of watering plants if they are planted during the summer months. Any revegetation' should preferably be performed in September or October. Applicant shall replace all revegetation if it dies or is sickly within 5 years of planting at no expense to the neighbors. Applicant shall cover exposed slopes with a minimum of 2 inches of straw mulch and berrn up the straw mulch where the fill meets the new block wall. 3. Applicant shall stake the catch points of the 4:1 slope in the native growth protection area and notify the neighbors when a City inspection should be performed to ensure the original slope will not be further disturbed as a result of the restoration work. F 2 —6 H, - ! Frfz- I EARTHWORK ESTIMATES: CUT 25 CY FILL 55 CY TOTAL 80 CY AREAS DISTURBED: 700 SF NET NEW IMPERVIOUS AREA: 0 SF CONSTRUCTION SCHEDULE: 1 . LAYOUT LOW BLOCK WALL LOCATION. 2. INSTALL SILT FENCE. 3. DEMOLISH LARGE BLOCK WALL. REMOVE ANY FILL ABOVE THE 4:1 EXISTING SLOPE LINE. 4. PLACE NEW- FILL AT 4:1 TO PROPERTY LINE. 5. PLANT TREES AND SHRUBS PER PLAN. 6. PLANT GRASS SEED, THEN PLACE STRAW OR EROSION MULCH. 7. OBTAIN FINAL- INSPECTION FROM CITY INSPECTOR. 8. REMOVE SILT FENCE AFTER VEGETATION IS ESTABLISHED. 102006 E"On 1RCkv/WACA,-ren&nents M2006 Eftion JBC w/WAC Anlendments 132006 Edition UPC w/WAC Anmidments and Appendices A, B, Q 1 132006 Edition IMC w/WAC AmendnIents 132006 Edition. 1FGC w/WAC Anumdnxnts 132006 Edition 1FC w.VAC Anundments C32006 Mflon VIAQ WAC 51-13 E32006 Edition WSEC WAC 5 1-11 Property Owner Information: Egis Klimas 23621 99th Place W. PN: 0071600000-1500 Rose Lesmith 23618 97th Place W. PN: 00810700oo-0900 Steven Kim 23622 97th Place W. PN: 0081070000-0800 W 0 00: C4 C21, 0 N 0 00 a) E cr) 'a ;:z,; V_ C 0 D cc'4 E .0 0) ce) W N LU 14M MT 0 04 a) a) Co M CZ CO CL n CL 0 C6 M O'D a 0 r- CC) C\I 0 C%4 — 04 cp cD co E CV) M co "D C-4 04 N UJ CITY OF EDVi0K1b__ -P IEW� WORK. ADDRESS",:W z R,_ 0 APPROVED D)AiF: CL 3 L D G. 0 F. F.110 I A L: U) iz W ROVED BY) PLANNING > W L 3 ('C) . . . ........................ 4/24/1 eN A 7 ell, Jewe A i 00 00 00 040 0 Z z op 00 W City of Edmonds Building Department z (D 3:. �p W _J M (r) < CL < 0 W 0: Q. 7). < In a D PLAN MAR 3 12010 0 f UTY OF ELI�11iU; "'S STREET A LE Y MiT 12013 C. 77" STREET Fit E L-r. SILT FENCE Purpose Use of a sit ferice.reduces the transport of coarse sediment from a c . bns�ttuction site by providing a temporaryphysical barrier to sediment and reducing the runciff velocities of overland flow. Conditicris of Use Silf fence maybe used downslope of all disturbed areas. Silt fence ismot. - intended to treat concentrated flows, noris it intended to treat -substantial amounts -of overland flow. Design and - Instal Igtion Specifications 1. See Figure C.31.E and Figure C.3.1.F for details: 2. The geotextile-used must rn . eet the standards listed -below.. Acopy of the manufacturer's fabric specifications must be available onsite. AGS (ASTM D4751) 30-400.,�S;J.eve size (0.60-0..15 mm) for slit film 50;490�.S­ieve size (0.3&�Q.15 Imm) for other fabrics .Water Permlttiviti�.(ASTM D4 . 491) Os*02.s.664 minimum GrabTensile Strength (ASTM D4632). 186168.- min. for extra strength fabric .100� lbs.. min.for standard -strength fabric Grab Tensile Elongation (ASTM D4632). '30% max. Ultraviolet Resistance (ASTM D4355) 70% min. 3. Standard stren the strength of the fence. Wire backing or gth fabriic requires wire -backing to increase closer. post spacing may be required for extra strength fabric.if field performance warrants a stronger fence. .4. Wherethe fence is installed, the slope shall be no.steeper than 2H:IV. 5. If atypi . cal silt fence (per Figure C.3. I.E) is used, the standard 4 x 4.trench may not be reduced as long as the bottom 8 inches of the. silt fence is well buried and secured in, a.trench. that. stabilizes the fence and doDs not allow water to bypass or undermine the silt fence. Maintenance Standards 1. Any -damage -shall -be repaired immediately. 2. If concentrated �flows are evident uphill of the fence, they must be intercepted and Conveyed to a sediment trap or pond. 3. It is important to check the uphill side of the� fence for signs of the- fence clogging and acting as a barrier to flow and then causing channelization of flows parallel to the fence. If this occurs, replace the feme.or remove the trapped sediment. 4. Sediment. must be removed when the sediment is 6 incheshigh. 5. If the filter fabric:(.geotextile) has deteriorated due to.ultraviolet breakdown, it shall- be.replaced. . . ....... . A ppX4iX, I 1"17S 70 /YZW. W.,9 y VV/ -529ew Z 14 Zo llpyee A AIP 725�E Z V, /11//k/I 71-?E&eq DRAINAGE PLAN NOTES: 7YP4 Z- 5 Y �/ 7 1. PRIOR TO ANY EXCAVATION ALL UTILITIES WILL BE LOCATED. CALL HEDG W W 6 00 FOUND 1/2' �LSAR Y/CAP 1-800-424-5555 A MINIMUM OF 24 HOURS PRIOR TO EXCAVATION. N 8 9W* -G-:41NC. LS 485 0, 11." 0.15VT 2. ALL PVC PIPE LOCATED WITHIN THE PUBLIC RIGHT-OF-WAY OR UNDER A VEHICLE TRAFFIC AREA WILL CONFORM TO ASTM-3036 AND .......... ........... BE SDR 35 RATED. ................ .. ................... TRAC r R. 7 rou 3. THE LOCATION OF THE PIPE CONNECTION TO THE EXISTING TYPE 2 .......... I ...... yj .. ............ ............ CATCH BASIN IN THE STREET WILL BE APPROVED BY THE CITY OF .. . *-- ... ...... .......... EDMONDS PRIOR TO DISTURBING THE CATCH BASIN. . . .... ...... 4 ..... . THE HOLE FOR THE NEW PIPE CONNECTION WILL BE CORE DRILLED .......... . ......... ........... INTO THE SHELL OF THE EXISTING CATCH BASIN AND A NON -SHRINK , I aim". GROUT USED TO SEAL THE PIPE CONNECTION. ........ -A, 100 Fni, .......... 5. THE BACKFILL FOR ALL EXCAVATION FOR ANY PIPE PLACED IN A :7 VEHICLE TRAFFIC AREA AND THE PATCHING OF ANY PAVEMENT WITHIN THE PUBLIC RIGHT-OF-WAY WILL CONFORM TO THE CITY OF 5-14 7 lr�- AIItC- EDMONDS SPECIFICATIONS FOR SUCH WORK, V w _,1=,A!pEA17- . A X I -'�-7- RA X 14e7Y.A5 574e. LO 5. THE TRENCH DRAIN USED WILL BE DESIGNED FOR USE IN A EXISTINQ HOSE VEHICULAR TRAFFIC AREA AND WILL BE RATED FOR H-20 WHEEL LOADING. IT WILL BE INSTALLED PER MANUFACTURER'S EXlsnNG.. HOSE INSTRUCTIONS, INCLUDING CONNECTION TO OUTLET PIPING AND BEDDING UNDER THE TRENCH SECTION. td W 7 Wi DECK W L T 14 LOT, 15 )A SE W D F -0 RT AD6T.I�N rrTUND 1/2� G,4 LS 148 FIR :0.07V 1.2'DOWN IS. FIR 110 L.Q\T ACTIVITY SCHEDULE: 1. STAKING BY SURVEYOR OR CONTRACTOR. 2. PLACE SILT FENCE. 3. PERFORM ROUGH GRADING OF SITE FOR NEW DRIIVEWAY. 4. ..-INSTALL NEW UNDERGROUND UTILITIES. (INSTALLSILT TRAPS IN OFF -SITE CATCH BASINS AS MAY BE DIRECTED BY CITY OF EDMONDS FIELD INSPECTOR. NEED FOR OFF -SITE CB PROTECTION NOT NECESSARY IN DRY WEATHER.) 5. PERFORM FINE GRADING OF SITE. 6. CONSTRUCT NEW RESIDENCE ENTRY WAY AND PORCH, AND PAVE NEW DRIVEWAY. 7. REVEGETATE DISTURBED AREAS WITH GRASS SEED AND OTHER LANDSCAPING VEGETATION. 8. REMOVE SILT FENCING AND CATCH BASIN SILT TRAPS ONCE VEGETATION IS RE-ESTABLISHED. EARTHWORK QUANTITIES: CUT 10 CY FILL 10 CY-01 TOTAL NOTE: BALANCED SITE EARTHWORK. WASTE EXCESS FILL ON SITE. SOME IMPORTED MATERIAL MAY BE REQUIRED FOR TRENCH BACKFILL. FIGURE C.3.1.E SILT FEN CE .%W JOINT$ IN FILTER -FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RING , OR -S EQUIVALENT TO ATTACH FABRIC TO POSTS. 2W BY 14.Ge. WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTEkFABRIC P. MINIMUM 4W TRENCH 100'X -T -6'MAX . / " 1 BACKFILL TRENCH WITH *' I NATIVE SOIL OR13W-I.W POST SPACING MAY BEJNCREASED WASHED GRAVEL TO V IF WIRE BACIONG IS USED bO., 2N4rWOOD POSTS, STEEL FENCE NOTE: FILTER FABRIC FENCES SHALL BE -POSTS,' Rr:BKR,'OR EQUIVALENT INSTALLED AL014G CONTOUR WHENEVER POSSIBLE Cd - FIGURE C.3.1.F SILT FENCE INSTALLATION AND MAINTENANCE PA 0 . a Dig trench Tbe�-in­fabrlc Stake E C14 0 (D 00 0) U M. CL Z 0) 0 04 Of C4 8 E -a -u * Reinforce Monitor Maintain and clean M .'. 0 C\I E CD CID .0 5 r- ce) W C14 W CO) Z W 73 W 2 Z LL. 0 0 0 E (D ED a 31. A Z < Z (D W C) 0 N Lo Z < co CZ IMPORTANT NOTE CONCERNING PREVIOUSLY Z EL 0 - < L-0-3:0 EXISTING AND NEW SECTIONS OF CONCRETE BLOCk .90=4, < = (0 -V- RETAINING WALL LOCATED ON PROPERTIES TO EAST 00) W 0 a 0 OF SITE: -;F C- 0 a. 0 0 C4 -a co E CD 0 M C-4 W (L THE OWNER IS INVESTIGATING OBTAINING PERMISSION FROM ADJACENT PROPERTY OWNERS TO ALLOW THE EXISTING CONSTRUCTED WALL SECTIONS TO REMAIN IN THEIR PRESENT LOCATION. THE RESULTS OF THIS INVESTIGATION AND THE TIME FRAME FOR ITS RESOLUTION ARE NOT KNOWN AT THIS TIME. THE NEW SECTION OF THE WALL HAS BEEN FIELD INSPECTED BY THIS OFFICE AND FOUND TO BE STRUCTURALLY SOUND TO REMAIN IN PLACE IN THE SHORT TERM. SHOULD IT BE DETERMINED THAT THE WALL MAY REMAIN IN ITS PRESENT LOCATION PERMANENTLY, THIS OFFICE WILL PERFORM A FORMAL STRUCTURAL REVIEW OF THE WALL TO VERIFY ITS ADEQUACY FOR LONG TERM RETENTION. W PLA NNG APPROVE /u� INPERVIOUS AREAS: EXISTING DRIVEWAY 1,000 SF TO BE REMOVED NEW DRIVEWAY 2,000 SF NEW ENTRY/PORCH 150 SF NET IMPERV. INCREASE 1, 1 50SF Zone Corner - Flag -IL OWIRES: 4/24/ Sgtbacks E2qm�ired _Actual NOTE THAT EXCEPT FOR THE NEW ENTRY/PORCH AREA, THFront /V 7- r '7. 5-+ AREA OF THE HOUSE REMAINS UNCHANGED. Sides �J - -7. Z: Rear S' 2. r Other C 7.5- j1eigh!_ --e- RECEIVED AUG 2.6'2009 BUILDING DEPARTMENT CITY OF EDMONDS Z 0 I" 0- W a W X N oo 00 N - 'oa 'Z Z:O* -.00 W W -j 0. < 0- f-) I qy�� C, c r-I � RECEIVED AUG 2 & 2009 13UILDING DEPARTMENT I C4Ty OF EDMONDS IMPERVIOUS AREA CATAGORIES EXISTING IMPERVIOUS AREAS (NO DRAINAGE SYSTEM IN PLACE) . . . . . . . . . . . . . . . . BUILDING ROOF (DOWNSPOUTS TO GROUND) 1574 SF 1983 DRIVEWAY (TO TRACT LINE) 920 SF 1983 TOTAL 2494 SF FUTURE IMPERIOUS AREAS TO BOTH DETENTION AND EXISTING DRYWELLS BUILDING ROOF (ORIG.) (DOWNSPOUTS TO GROUND) 1574 SF 1983 BUILDING ROOF (NEW) (DOWNSPOUTS TO GROUND) 165 SF 2009 EXISTING DRIVEWAY, REPAVED 920 SF NEW NEW DRIVEWAY 1830 SF NEW PATIO AREA IN REAR 1760 SF 2009 '0_ TOTAL 6249 SF R FUTURE IMPERVIOUS AREAS INFILTRATED ON SITE TO EXISTING DRYWELLS ROOF AREA (ONE HALF ORIG. TO REAR PATIO AREA) 787 SF 2 PATIO AREA IN REAR 1760 SF TOTAL 2547 SF NET IMPERVIOUS AREA TO DETENTION SYSTEM (CITY STREET SYSTEM) TOTAL FUTURE IMPERVIOUS AREA 6249 8F LESS INFILTRATED AREA -2547 SF V NET IMPERVIOUS AREA FOR DETENTION SYSTEM 3702 SF NOTE: THE ROOF AREAS AT PRESENT USE DOWNSPOUTS. THE ROOF AREAS WHICH CONTRIBUTE TO THE DETENTION SYSTEM FLOWS (AS NOTED ABOVE) WILL STILL USE. DOWNSPOUTS, BUT ALL FLOWS WILL BE CAPTURED BY THE 2­ PAVEMENT AND ROUTED TO THE DRYWELLS.) SILT FENCE Purpose Use of a silt fence reduces the transport of coarse sediment from a c . onstruction site by providing a temporary physical barrier to sediment and reducing the runoff velocities of overland flow. Condillons of Use Silf fence maybe used downslope of all disturbed areas. Silt -fence ismot iiatended to treat concentrated flows, mr. is it intended to treat substantial amounts of overland flow. Design and Installation Specifications 1. See Figure C.3 4 LE and Figure C3. LF for details. 2. The geotextile- used must meet the standards -listed below.. A copy of the -manufacturer's fabric specifications.mustbe available onsite. AOS (ASTM D4751) 30-1.00,�s ' !.eve size (0.60-0.15 mm) for slit film 50ag.lQ0�SieVe size (0.30T�0.715 Imm) for otherfabrics \Vater Permiffivity.(ASTM D4491) 0i02-sec" minimum Grab Ten S'lle Strength (ASTM D4632). 1.801bt.- min. for extra strenothfabric 106 lbs. min. for standard -Strength fabric Grab Tensile Elongation (ASTM D4632) '30% max. I Ultraviolet Resistance (ASTM D4355) 70% min. 3. Standard stre gth fabric requires wire -backing to increase the strength of the fence. Wire backing or I ng closerpost spacing.may be required for extra-streng.th fabricif field performance warrants a stronger fence. 4. Whe:e the fence is installed, the slope shall be no steeper than 2H: IV. 5. If a typi . ral silt fence (per Figure C.3. I.E) is used, the standard 4 x 4 -trench may not be reduced as long as th� bottom 8 inches of the. silt fence is well buried and secured in a.,trench. that stabilizes the fence' and does not -allow water to bypass or undermine the silt fence., Maintenance Standards 1, Any damage shall be repaired immediately. 2. If coacentrated flows are evident uphill of the fence, they must be intercepted and conveyed to a sediment trap or pond. 3. It is iinportant to check the uphill side of the fence for signs of the fence clogging and acting as a barri.-r to flow -and then causing channelization of flows parallel to the fence. If this occurs, replace the fence or remove the trapped sediment. 4. Sediment must be removed when the sediment is 6 inchesbigh. 5. If the filter fabric �(geotextile) has deteriorated due to ultraviolet breakdown, it shall� be -replaced. 4 - 2 R. NOTICE REM H FOR ONSPECMON 7 X);;F if 0 11Y1 GRA 7_5 4p X FW pfo I 11VI7 S 70 /M 7Y/2,�_z- IL 4, "P_ xm�D zu�wowW4 y W/ 52pZAP Z/0 AA1,0 722FE. DRAINAGE PLAN NOTES: C-X, 7XP,6 Z "Pve 0- 2 % VVII-1-Z9'e5�Z-9 72E 7 Y'LAIel- 1. PRIOR TO ANY EXCAVATION ALL UTILITIES WILL BE LOCATED. CALL 1-800-424-5555 A MINIMUM OF 24 HOURS PRIOR TO EXCAVATION HE W N 8W W 6 00' FOUND 1/2" �IESAR Y/CAP G - 4' INC. �S Xr485 0.1 IN 0. 1 S.W 2. ALL PVC PIPE LOCATED WITHIN THE PUBLIC RIGHT-OF-WAY OR ............. UNDER A VEHICLE TRAFFIC AREA WILL CONFORM TO ASTM-3036 AND BE SDR 35 RATED. ............... --- -­- -TRACT '99 ............... R. Fou 3. THE LOCATION OF THE PIPE CONNECTION TO THE EXISTING TYPE 2 * . . . k L. F -.Z4- ­0 7 W, r�- * X .., ..... 'i . . . . .)V- .0 CATCH BASIN IN THE STREET WILL BE APPROVED BY THE CITY OF ­4fj�.55� ....... 4 .5*5 - - * EDMONDS PRIOR TO DISTURBING THE CATCH BASIN. SE W D ... ....... . 4. THE HOLE FOR THE NEW PIPE CONNECTION WILL BE CORE DRILLED FO RT .. ......... ......... INTO THE SHELL OF THE EXISTING CATCH BASIN AND A NON -SHRINK ........ . .......... GROUT USED TO SEAL THE PIPE CONNECTION. 5 SIKH ....... 10" AD ITI N ID' .......... N Z10 5. THE BACKFILL FOR ALL EXCAVATION FOR ANY PIPE PLACED IN A VEHICLE TRAFFIC AREA AND THE PATCHING OF ANY PAVEMENT' WITHIN THE PUBLIC RIGHT-OF-WAY WILL CONFORM TO THE CITY OF 5-/47 r�Ajzc- W EDMONDS SPECIFICATIONS FOR SUCH WORK. 77 PA V_,c-,.A1,EAJ 7' A' 4 Z 7Y.A -S _,_,AI7 A J,= y A Al 5. THE TRENCH DRAIN USED WILL BE DESIGNED FOR USE IN A EXISTINO: HOSE. (A�Ie7JJA / . I VEHICULAR TRAFFIC AREA AND WILL BE RATED FOR H-20 WHEEL b 0 LOADING. IT WILL BE INSTALLED PER MANUFACTURER'S E�NG. HO�E INSTRUCTIONS, INCLUDING CONNECTION TO OUTLET PIPING AND BEDDING UNDER THE TRENCH SECTION. 0. 7 W F 0 )ECK VE D 14 L a-intenance of DLt_ention: Systems P LoT, 15 4. V 2EA1, 612YW,51L!� Material must be removed -from the catch basins and detention pipe to prevent clogging, 1,17, 61?4 especially at the outlet: control. system. Catch basins should be twice per year. WI/ cleaned at least Frequent catch basin cleaning will reduce the need for the more difficult task of cleaning the W RIC- doWbfion' pipe. The'systern should be kept clean during construction. Materia must be UND 1/21 R physically removed and�not just flushed downstream. Y/CAP G-z4 LS 948 6' -WOOD C Fl - OWN R Q1.03'N 0.07V 12 18. FIR ..o 7J LOT 1 -b 4 HIR FIGURE C.3.1.E SILT FENCE JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES. WIRE RINGS, OR EQUIVALENT TO ATTACH FABRIC TO POSTS. 27xV BY-14.Ga. WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED FILTER�FABRIC :il- 11121 TW_ 71- V MAX MINIMUM 4"x4"TRENCH BACKFILL TREN CH WITH NATIVE SOIL 0112/4"-I.S." POST SPACING MAY BEJNCREASED WASHED GRAVEL TO V IF WIRE BACIGNG IS USED 2")W.WOOD POSTS, STEEL FENCE I -POS'tS,' REBAk,'OR-EQUIVALENT- NOTE. FILTER FABRIC FENCES SH ALL BE INSTALLED ALONG CONTOUR WHENEVER POSSIBLE FIGURE C.3.1.F SILT FENCE INSTALLATION AND MAINTENANCE Dig trench Reinforce Toe -in -fabric -Monitor Stake Maintain and clean ACTIVITY SCHEDULE: 1. STAKING BY SURVEYOR OR CONTRACTOR. 2. PLACE SILT FENCE. 3. PERFORM ROUGH GRADING OF SITE FOR NEW DRIVEWAY. 4. INSTALL NEW UNDERGROUND UTILITIES. (INSTALL SILT TRAPS IN OFF -SITE CATCH BASINS AS MAY BE DIRECTED BY IMPORTANT NOTE CONCERNING PREVIOUSLY CITY OF EDMONDS FIELD INSPECTOR. NEED FOR OFF -SITE EXISTING AND NEW SECTIONS OF CONCRETE BLOCK CB PROTECTION NOT NECESSARY IN DRY WEATHER.) RETAINING WALL LOCATED ON PROPERTIES TO EAST 5. PERFORM FINE GRADING OF SITE. OF SITE: 6. CONSTRUCT NEW RESIDENCE ENTRY WAY AND PORCH, AND PAVE NEW DRIVEWAY. THE OWNER IS IWNV IGATI OBTAINING MISSION 4 P 7. REVEGETATE DISTURBED AREAS WITH GRASS SEED AND FROM ADJACE ROPE OWNERS T ALLOW TH S t W LL , OTHER LANDSCAPING VEGETATION. EXISTING C TRUCT A 4;F S To RF WALL SEC NS TO RE IN IN 8. REMOVE SILT FENCING AND CATCH BASIN SILT TRAPS THEIR P ENT LO ION. THE ULTS OF, IS ONCE VEGETATION IS RE-ESTABLISHED. INVE ATION THE TIME ME FO S RESOLUT A OT KNO AT THIS TI THE SECTION 0 HE ALL HAS EN FIELD IN ECTED THIS OFFIC ND EARTHWORK VOLUME ESTIMATES FOUND BE STRUC ALLY UND TO REM IN PLACE CUT 10 CY IN TH HORT TER * SHOU IT BE DETER ED THAT THE FILL 10 CY W MAY REMA IN ITS ESENT LOC N TOTAL 20 CY RMANENTL , His ICE WILL PE RM A FO L STRUCTU EVI VV OF THEWAL 0 VERIF NOTE: BALANCED SITE EARTHWORK. WASTE ADEQUA FO NG TERM RE TION. EXCESS FIL'ON SITE. 'SOME'IMPORT-56- - MATERIAL MAY BE REQUIRED FOR TRENCH BACKFILL. Resolution of retaining wall one constructed without permit on OWNER/CONTRACTOR IS RESPONSIBLE Comer 48-t- adjacent property in critical area issue FOR EROSION CONTROL AND DAMAGE Letbacks -&-wal to be completed under separate �Front /I/ permit, and must be resolved (work Sides 1,/ completed) prior to final inspection Rear 5 ALL EXPOSED SURFACES TO approval of this permit. BE 0 1 OVE - R I ED WITHI I N DAYS- Other C NVI YD P* bo hD fad 4) 0 P P� E 00 CIS (J) C < L_ L Z! 0) 0 �- N 4;- U� C; E 107)1 -0 o 52 , r- co 0,2 c*4 E (0 -a) CO b 0 C: co 0 LU Cj LU 041 0 W 2 Z U_ 0 CU (1) 0 0 E W a C) Z Z C) 0 W Z C04 0 Co 0)0 Z CJ_ M C:) - < 0 a- 0 C co 0 4� L) 0) W;Z L_ 0) '10 0 a 0 Uj Z CL C14 aco E 0 r- co"d Z U M C-4 UJ iL mm N , 0- X W 140 1 E: I HIS PROPER " VV/-XO tAlNl)lr_A1=LJ I V 1 rlt= %-,I I T V1-_t=UML)NUti k ON DECEMBER 15,1997. k. 00 00 00 WIRES- 4124/ OVI Z. Z W APPR EDW ENGNiEERING C) UJ A2PROVED BY PLANNING 0: 0. 0 0 < (n -o L L 4a 00 0a -7 a Applicant shall repair/replace alidamage to RIP utilities or improvements in Ofty VAN (-i�y stRrdards that is caused C/ nyFIL-U WO-Y V 1. . or occurs during the pervIlIted project. -----­-------- - Moll .......... INA' OUS A� -otq" 4� W/ W/ 7 70 '71 LOT r;4PPe,1t Z11%17S 747NZW ZID ZZ PA2.111ZWO Y S'lr7 ,'�,Vea W 6W P.� ov STANDARD DETENTION SYSTEM WORKSHEET (5000 SF OR LESS) OWNER: ADDRESS: Z �5 (9 /--9 Z?w 75T kv, CALC. BY: '2 PHONE: DATE: IMPERVIOUS SUFACE,AREA 31 7o PIPE DIA PIPE LENGTH 3Z IFICE OR FOOTING DRAINS SHALL NOT BE CONNECTED TO DETENTION SYSTEM OCKING LID (TYR) RIM ELEV. IM ELEV. /0 Z, FINISHED DETENTION PIPE LENGTH 6" Min. clearance GRADE Measured from top of. RIM ELEV, /0/- 0 Cone, box or riser. IMUM T4"nT""- n=4C1 .0% S�LOPE TO CITY CONVEYANC E INV ELEV, \--iNV. NV. ELEV, ELEV. 7-00 CITY STORM I — "I CONVEYANCE UPPER CATCH BASIN '-�OLITLET SYSTEM N� CONTROL ROM CONTROL CB '--ORIFICE PRPDER TRENCH 2'X2'XI2" DEEP CONTROL CATCH BASIN S E MIN. (4--6-QUARRY ALLSOREQUAL) IN. 6"COVER OF10-LO GAND 0 1 FROM CONTROL C -'�PERIPENDICLILAR TO CONTROL CB. SHALI T( Aa;IfPl:�AP ni ITI PT LEI CONTRO B SHALL BE PERPENDICULA� 1.5' -N TO SPREADER TRE C-1 TRENCH SHALL BE LINE PERF, PIPE SH BE WITH MIRAF1 &ON TO LEVEL & CAPP�E�D, ENDS RIPRAP OUTLET 1-� /8"WASHED DRAIN ROCK SPREADER TRENC NOTES 1. CALL ENGINEERING DIVISION (771-0220 EXT. 1326) 24 HOURS IN ADVANCE FOR A TIGHTLINE AND DETENTION SYSTEM INSPECTION BEFORE BACKFILLING AND FOR FINAL INSPECTIONS, APPROVED BY 2. Responsibility for operation and maintenance of drainage systems on private property is the responsibility of the property owner. Material accumulated In the storage pipe must be flushed outgnd removed from catch basins to allow proper operation. The outlet control orifice must be kept open at all times. DATE el-? ?ry/-�W 2 lel, 4 C7SM) 1,45 19 "'J c? 7, e*,Al )='Wj e'E KI &el �E W.,q y /V —I I/ .............. .. .... ... .... . ...... ............ ........... .......... Z 6— DO WA1 70 Z. F/M /o -3-8Z /F7i.) e A,0 4 L X- -�7 AOV,,( Z4 11) 7' 7`42 73��PE� IL 9c- 4� e W/ 177144 1AID 9r 'ILE Z), F 7-A r/1 714,1Y. V. /1, 0 Table I -- Detention Pipe Sizes Impervious Surface Required Pipe Diameter Area Sq. Ft. Vol Cu Ft 116� 18". r24)- 301F 2000 50 40 28 16 10 2500 62 50. 35 20 13 57-17 3000 75 60 42 15 Required pipe ,C 24 3,700 3500 87 70 49 28 18 'length in feet (?@ 03 P 100 80 56 21 4500 112 90 63 36 28 5000 125 100 70 40 25 *NOTE: Use the next highest surface area to determine detention size if calculated impervious surface area is greater than 1/2 the value between numbers.P.e., 2280 use 2500) Table 2 Outlet Orifice Sizes Impervious Surface Area Sq. Ft. Outlet Orifice Diameter (inches) 2000-2999 5/8 Q�� . . . CE) 4000-5000 7/8 Table 3 Rectangular Catch Basin Requirements Detention Max. Size Catch Basin pipe diameter knockout Type -It 181, 2011 Tjgg_], C B 15 18" tao 26'r qype IL, CB; 16-D - 24" to 36" 3611 Type 11, CB; 19 19 (48" Basin) 36" to 42" 4210 Type 11, CB 19 19 (54" Basin) *Source: Assoc. Sand & Gravel Co. Standards ALLLOWABLIE STORM DRAINAGE DETENTION OR CONVEYANCE MATERIALS: N-12 ADS HOPE (Min. 2'cover required under paved areas) water -tight - PVC-SDIR 35, ASTMD-3034 or better 0 Ribbed PVC pipe, ASTM D-2444 - Ducticle iron pipe Class 50 Tightlines system: N-12 ADS (Smooth Wall) PVC-SDR 35, ASTMD-3034, or better Hbncor F-810 S:\ENGR\HANDOUTS\Drainage tables E21 Cd 0 P- (4 V) V, Q CA E C) 5� N ca 80 * T > 00 C, -e 19 0) .0 ca :S - ". L- E M 0 co 0) -0 LO C co 'cri 04 0 E @ C W C\1 2� L 2 Z U- 0 0 E 2 Z 01)� Z Z a) 4,1C 1 R UJ Z C\J LO CD CO MM — < a. < C 0 001) -0 0 r- W Z 0 V- 0 E 0 -0 0 jVZ 'M '04 W CL 0- 0- W W 4 N., :00 -.00 UJI, Uj 0� CL too ROSUB' NOV 0 3 2009 Of