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W I W ~ Ci7 O C C~l W PC H N O pC i W 1 W ,OW wy to W 1 H W -cc H C c OWC ¢ i x� Q W C!J .WI O a�LAJ w a W 3 a �.a City of Federal Way PP CATION FOR BUILDING PERMIT RE-- %-, r--I o °i r, 1994 PLEASE PRINT a APPL/CAT/ON M & Z) Al 092-2-3 ftbcATION � 3 f ' � '� �:<: rasa .3WI5 Tenant (if known) Lot # Building Owner Name Address City State Zip Nature of Work PuCANT Name (F,M,L) Address City al7a, State Co act Person Day Phone q Other Phone CHITFCT Name CRAIve, �j r�5►g NS Address SL- City Y:II r Contact Person LEGAL DESCRIPTION ter 4" Assessor's ax # Phone Zip ?--5Z State WA Zip I FA) 31 Phone a()6 • V59.215N 1,206- e5y• i��tl �s !7r v 3 t Please_ Co►nale#e Reverse Side CD0492 (Rav 41931 RUCTUPM Existing Use + IV Permit includes: 09"Building p—plumbing Type of Work: CI"Residential "ew ❑ Remodel ❑ Commercial ❑ Addition (j Garage Enter 1 at Floor . �j5 sq ft 2nd Floor r'a3 sq ft 3rd Floor sq ft Area Basement sq ft Decks sq ft Garage _ 5j0 sq ft Water Availability Sewer Availability On -Site Septic System Availability ❑ Zoning s —T. Lot Size ve ,1'7Pi Proposed Use A / S 7= f._i Mechanical ' ❑ Other ❑ Number of Units ❑ Deck ❑ Shed ❑ Other Existing Floor Area sq ft Proposed Total Area~ aq ft Project `Vblubl ior!i .$ :)=J(i9tji1gaICfl�IIHtf011. t*: :. .L. Name V l n" S 141 r 4v Address ` ''fit' •Z O 106 RVc /VC 14 City State WA 1 Zip 170 .... ------ A . C. 3�;i O.- CUB, C'—rCR` - . . Contractor Name rl Address ,w �n e��• sw ��a s�- City State W49 Zip 460a3 Contact T �i Phone Fax License # Expiration Date Verified ❑ Yes ❑ No PWMBING CON Contractor Nam �Y�I Address r i-t a �.l �► "— G3 15 ► �e 2�, C-:n3 r City s�mne� State F} Zip V Contact Phone Fax License # P 3 09 Expiration Date Verified ❑ Yes ❑ No .PLUMBING FIXT.UFX COUNT Water Closets 3 Sinks 2 Urinals it A Lawn Sprinklers Bathtubs Z Dish Washers 1 Drinking Fountains Other Showers Electric Water Heaters N Sumps Lavatories Washing Machine Drains I C MCAl:UN�i lCOUNT Fuel Type (electric/other) Gas Dryer po Air Handling < = 10,000 CFM 15-30 Tons Length of Gas Piping Range I" Air Handling > = 10,000 CFM 30-50 Tons Furn <100K BTUs Gas Log NO Unit Heater 50+ Tons Furn > 160 BTUs Fans Miscellaneous Fuel Tanks Gas Hwt Hood rd Boilers Above Ground Conv Burner Duct Work 0.-3 Tons Underground O's NC Wood Stoves A114 3-15 Tons Tat31 Unit•Cauiit DISCLAIMER: I certify under penalty of perjury that the information furnished by me is true and correct to the best of my knowledge and further that I am authorized by the owner of the above premises to perform the work for which permit application is made. I further agree to save harmless the City of Federal Way as to any claim (including costs, expenses, and attorneys' fees incurred in Investigation and defense of such claim), which may be made by any person, including the undersigned, and filed against the City of Federal Way, but only where such OF ' ris ut of the, relian of the Ci , Including Its officers and employees, upon the accuracy of the Information supplied to the City as a part of this application. Owner/Agent: _ D 1 rlzw C GEaTECH CONSULTANTS, INC. 13256 N.E. 20th St. (Northup Way), Suite 16 Bellevue, WA 98005 (206) 747-5618 FAX 747-8561 Chateau Construction, Inc. 6163 - 93rd Avenue Southeast Mercer Island, Washington 98040 Attention: Greg Jones Subject: Geotechnical Engineering Reconnaissance Proposed Single -Family Residence Lot IS - Campus Highlands, Division III Federal Way, Washington Dear Mr. Jones: :PD LD34rb7,�-3 August 22, 1994 SH 1 51994 CITY OF FEDEVEAL WAY BUILDIMia EF'i. On August 16, 1994, the undersigned met with you at the site of the proposed residence in Division III of the Campus Highlands development. This development is also known as Campus Estates. The purpose of our visit was to observe the existing site conditions, and to develop opinions regarding slope stability and the feasibility of constructing a house on the property. The recommendations and conclusions presented In this report are professional opinions based on the visual observations made during our site visit and our previous experience with other projects in the vicinity. No subsurface explorations were conducted for this work. We -understand that you propose to construct a- relatively large residence In the central portion of the property. The minimum square footage for the house is subject to requirements of the Campus Estates covenants, and a 20-foot setback must be maintained between the structure and the street right-of-way. We anticipate that the residence will be oriented so that the garage will be located in the northwestern corner of the structure. The west wall of the family room will jog 8 feet east from the western wall of the garage. A short rockery with a height of no more than 4 feet may be located along the southern side of the property at the toe of the existing slope. Chateau Construction, Inc. August 22, 1994 JN 94316 Page 2 The site Is an Irregularly -shaped lot located In the southwestern portion of Division III of the Campus Highlands development. The western and southern property lines are generally straight and at right angles to each other, while the curving right-of-way for Southwest 347th Way and 5th Avenue Southwest forms the northern and eastern sides of the site. Currently undeveloped, Lot 15 was covered by tall grass and weeds at the time of our site visit. We used a hand-held clinometer and a measuring tape to determine the approximate height and inclination of the existing site slopes. The eastern edge of the property slopes down to the west from the sidewalk at an inclination of approximately 35 percent for a height of no more than 7 feet. The central portion of the lot is relatively level, with a gentle slope down toward the west. Along the southern property line, the ground slopes down from the adjacent Lot 14 at an inclination of about 35 percent. This slope has a maximum height of approximately 9 feet. The western portion of the lot slopes down to the adjacent "Dedicated Open Space" at an Inclination of 30 to 42 percent. This slope has a measured height that varies from about 15 feet at the northern property line to 17 feet near the southern property line. The toe of this slope is located on the western property line. Generally, this slope inclines 30 to 35 percent within 100 feet of the northern property line. South of this area, the inclination varies from 39 to 42 percent. The attached sketch of the existing site topography illustrates these approximate conditions. Our understanding of the subsurface conditions at the site is based on the observations made during our recent site visit and the experience gained from other projects in the site vicinity. Our firm was retained by Quadrant in 1989 to observe the grading, placing, and compacting of the fill necessary to create the existing ground surface on Lot 15 and several adjacent lots. This earthwork involved stripping the existing topsoil to expose the underlying native, weathered till soils, and then placing compacted fill to reach the existing grades. This fill consisted of primarily weathered till and glacial till excavated from elsewhere in the Campus Highlands project. These soils typically consist of silty, fine-grained sands that contain varying amounts of gravel. Density tests taken with a nuclear densometer indicated that the fill was compacted to 95 percent of the maximum Modified Proctor dry density as determined by ASTM Test D-1557-78. This compaction conforms with our recommendation to compact all fill in structural areas to a relative density of at least 95 percent. Attached to this report is a November 6, 1989 letter documenting the work that we observed. GEO'IECH CONSULTANTS, INC Chateau Construction, Inc. JN 94316 August 22, 1994 Page 3 The open space west of the site appears to represent the original ground surface that existed prior to the earthwork in 1989. No evidence of seepage, slope instability, or significant erosion were observed on Lot 15 during our site visit. Based on our past work during grading for Campus Highlands Division III, we anticipate that the site is underlain by structural fill placed over native, weathered till soils. Our density tests taken at the time of fill placement indicate that the structural fill was adequately compacted to support the proposed structure. It is our opinion that the residence can be supported on conventional footings designed for an allowable soil bearing pressure of 2,000 pounds per square foot (psi). We recommend that the footing subgrade be recompacted following excavation. Our observations indicate that no significant instability or erosion has occurred on the site slopes since they were constructed in 1989. It is our opinion that the risk of instability on these slopes is low. If slope movement does occur, it should be limited to the soils Immediately below the existing ground surface. This type of slope movement typically occurs only after an extended period of heavy rain or the introduction of excessive surface water. The risk of deep instability during a large earthquake is also low. The current Federal Way Geologically Hazardous Areas Ordinance does not allow development or landscaping within 25 feet of a steeper-than-40 percent slope, unless no reasonable alternative exists and the proposed work will not create an increased hazard. The southern • portion of the western slope is the only area on the site where a slope approaches or exceeds the 40 percent inclination. It is our opinion that the proposed house can be constructed 15 feet from the top of this steep slope without decreasing the slope's stability, if the development conforms to the following recommendations: (1) Bear the foundations on the existing structural fill following recompaction of the footing subgrade, (2) Place no fill on the western slope, and no more than 12 inches of fill between the residence and the top of the western slope, and (3) Discharge surface runoff and water from roof and footing drains away from the western slope. The western foundation of the garage can be located 5 feet from the western slope, because the slope is inclined only 30 to 35 percent through this area. GEOTECH CONSULTANTS, INC Chateau Construction, Inc. JN 94316 August 22, 1994 Page 4 If vegetation is cleared on the existing slopes, these areas should be Immediately revegetated to reduce the potential for erosion. If the earthwork occurs during the wet season, when revegetation is not feasible, the exposed areas should be protected by mulching with straw or hay. A short rockery is feasible at the toe of the southern slope. We recommend that this rockery, if constructed, consist of sound, hard, 3-man rocks without significant fractures or inclusions. A perforated drain pipe should be installed at the base of the rockery, and at least 12 inches of quarry spalls should be placed behind the rocks. The conclusions and recommendations contained in this report are based on site conditions as they existed at the time of our site visit. If the subsurface conditions encountered during construction are significantly different from those anticipated, we should be advised at once so that we can review these conditions and reconsider our recommendations where necessary. Unanticipated soil conditions are commonly encountered on construction sites. Such unexpected conditions frequently require making additional expenditures to attain a properly constructed project. This report has been prepared for the exclusive use of Chateau Construction and their representatives for specific application to this project and site. Our recommendations and conclusions are based on the site materials observed and on previous experience on sites with similar observed conditions. The conclusions and recommendations are professional opinions derived in accordance with current standards of practice within the limited scope of our services. No warranty is expressed or implied. We trust that this report meets your Immediate needs for the proposed project. Please contact us if we can be of further service. MRM:jcv Attachments Respectfully Submitted, GEOTECH CONSULTANTS, INC. x Marc R. McGinnis, P.E. Associate EXPIRES 9 GEOTCCH CONSULTANTS, INC. OEOTECH CONSULTANTS, INC. 13256 N.E. 20th St. (Northup Way), Suite 16 Bellevue, WA 98005 (206) 7475618 FAX 747-8561 The Quadrant Corporation P.O. Box 130 Bellevue, Washington 98009 Attention: Ted Whitescarver November 6, 1989 JN 89202/89263 Subject: Earthwork Observation and Testing of Lot Fill Campus Highlands, Divisions 2 and 3 King County, Washington Gentlemen: Geotech Consultants, Inc. have provided earthwork observation and testing at the Campus Highlands subdivision in Federal Way, Washington from May 22 to September 25, 1989. Our services included observation of site stripping, fill placement, and testing the compaction of the fill. The earthwork was performed by Campbell Construction. In Division 2, per the site grading plan prepared by Stepan & Associates dated March 1989, lot areas in which topsoil had been stockpiled, or where the soil had become saturated through the winter, were excavated and the unsuitable material exported off -site. Native, gravelly, silty sand was then used as structural fill as needed in Lots 6 through 24_, 37, and_ 45 through 52. Earthwork done prior to September 29, 1988 was discussed in our report to Quadrant dated November 15, 1988. In Division 3, the lot and roadway areas were striped to a weathered till consisting of a brown, gravelly, silty sand. The underlying till soils were then used as structural fill where needed. The lots in which fill was placed are Lots 1 through 6, 10, 14 through 17, and 25 through 28. The structural fill was placed in one -foot -maximum lifts and generally compacted to at least 95 percent of laboratory maximum dry density, as determined by ASTM D-1557-78 (Modified Proctor). Compaction was achieved using self-propelled vibra- tory rollers. Density tests were performed in accordance with ASTM Test ❑esicination D-2922-81 (Nuclear Gauge Method). Any tests which did not meet the required 95 percent compaction were rerolled until compaction was achieved. The attached tahlP 1;Gts the density test results. The Quadrant Corporation JN 89202/89263 November 6, 1989 Page Two Based on our observations and test results, it is our opinion that the fill placed within Divisions 2 and 3 has been adequately compacted. If there are any questions, or if we can be of further service, please contact us. Respectfully submitted, GE DT H CONSULTANTS, INC. Lola Burns Engineering Technician /4 `'•.,,.•...- ames iREinley, Jr., P.E. Principal Attachments LB/JRF:cvb .ti a Q r Y •b,,a:y 5 z 3� 4b r4 ,w m.�7�� a a i � 1Q11 } Z h Y Q' tao 4 �05 5 I FKO N W A LL- 8 4- —CONG2ERTE n) C-r REVISION DATE 5EP 2 1 1994 Re- ssu re- � recAe-J �{u4 Cor,-eL-4ors Pies svRe- tre.&tee 4- � Ca1jmn s L�p�ca1 ELANDS DIV. 3 9. T. 21 N., R. 4 E., WA SHI NG TON NO TES W.M. 1 !' CIEC hr;SH- 1. PLAT BOUNDARY AND REAR LOT CORNERS TO BE MONUMENTED WITH NUMBER 4 REBAR WITH CAP STAMPED "S&A 15639". FRONT LOT CORNERS REFERENCED FOR LINE ONLY WITH NAIL OR PLUG IN CURB ON LOT LINE PRODUCED. 2. SECTION SUBDIVISION-7 QUADRANT ENGINEERS. BASIS OF BEARING: K.C. A.S. 3 _ TRACTS "A" AND "B " (OPEN SPACE) SHALL BE OWNED BY THE CAMPUS HIGHLANDS HOMEOWNERS ASSOCIATION, AND SHALL BE MAINTAINED BY SAID ASSOCIATION. PLANTER ISLANDS TO BE MAINTAINED BY SAID ASSOCIATION. 4. TRACTS "A" AND "B " PERMANENT OPEN AREA: AS A REQUIREMENT FOR APPROVAL, THESE TRACTS ARE SET ASIDE AND RESERVED FOR PERMANENT OPEN SPACE AND RECREATIONAL USE, THE BENEFIT OF THE PRESENT AND FUTURE LOTS OF THIS SUBDIVISION AS AUTHORIZED BY ORDINANCE NO. 5535. AS A CONDITION OF APPROVAL, THE UNDERSIGNED OWNERS OF INTER IN LAND HEREBY SUBDIVIDED DO GRANT AND CONVEY A PERPETUAL EASEMENT IN TRACTS "A" AND "B" FOR USE AND BENEFIT OF ALL PRESENT AND FUTURE LOTS OF THIS SUBDIVISION AUTHORIZED BY ORDINANCE NO. 5535. EXCEPT AS SHOWN ON THE PLAT, NO BUILDING SHAL BE PLACED ON TRACTS "A" AND "B " AND SUCH TRACTS SHALL NOT BE FURTHER SUBDIVIDED USED FOR FINANCIAL GAIN. 5. ALL BUILDING DOWNSPOUTS, FOOTING DRAINS AND DRAINS FROM ALL IMPERVIOUS SURFA SUCH AS PATIOS AND DRIVEWAYS SHALL BE CONNECTED TO THE APPROVED PERMANENT STORM DRAIN OUTLET AS SHOWN ON THE APPROVED CONSTRUCTION DRAWINGS P1373 ON FILE WITH K COUNTY BUILDING AND LAND DEVELOPMENT DIVISION (BALD). THIS PLAN SHALL BE SUBMITT WITH THE APPLICATION FOR ANY BUILDING PERMIT. ALL CONNECTIONS OF THE DRAINS MUST CONSTRUCTED AND APPROVED PRIOR TO THE FINAL BUILDING INSPECTION APPROVAL. 5. BUILDING SETBACKS AND NATIVE GROWTH PROTECTION EASEMENTS: STRUCTURES, OBSTRUCTIONS (INCLUDING BUT NOT LIMITED TO DECKS, PATIOS, OUTBUILDINGS, OF OVERHANGS BEYOND 18 INCHES) ARE PROHIBITED BEYOND THE BUILDING SETBACK LINE WITHIN 25-YEAR FLOOD PLAINS (IF APPLICABLE). FILL ANG DEDICATION OF A NATIVE GROWTH PROTECTION EASEMENT (NGPE) CONVEYS TO THE PUBLIC A BENEFICIAL INTEREST IN THE LAND WITHIN THE EASEMENT. THIS INTEREST INCLUDES THE PRESERVATION OF NATIVE VEGETATION FOR ALL PURPOSES THAT BENEFIT THE PUBLIC HEAL7 SAFETY AND WELFARE, INCLUDING CONTROL OF SURFACE WATER AND EROSION, MAINTENANCE SLOPE STABILITY, VISUAL AND AURAL BUFFERING, AND PROTECTION OF PLANT AND ANIMAL HABITAT. THE NGPE IMPOSES UPON ALL PRESENT AND FUTURE OWNERS AND OCCUPIERS OF L SUBJECT TO THE EASEMENT THE OBLIGATION, ENFORCEABLE ON BEHALF OF THE PUBLIC BY k COUNTY, TO LEAVE UNDISTURBED ALL TREES AND OTHER VEGETATION WITHIN THE EASEMENT. THE VEGETATION WITHIN THE EASEMENT MAY NOT BE CUT, PRUNED, COVERED BY FILL, REMC OR DAMAGED WITHOUT EXPRESS PERMISSION FROM KING COUNTY, WHICH PERMISSION MUST BE OBTAINED IN WRITING FROM THE KING COUNTY BUILDING AND LAND DEVELOPMENT DIVISION ITS SUCCESOR AGENCY. m go r a z 0 0 a ���M CQ F- �� o rn M m 0 ,- 000l North a r_ 11A L OeZ\ll� 1*%r-fl� 0 M n c Ln o CK C, i \ \ Q � N �O O �0C)v m-4U.O C 0 z 44 41 U 4 f` ld ►- � !2 ld m c�3 �Mp 1 3 • Ajo > 30 a z� co 3r0 HOO`o in Ln o. Q rt 3 M S Q W W ei 71 fll !� Li L3 4 i` M-+Q ❑ lvO U7 -[}�' x a ec O L Q W W ec HM 010 ❑OIx U Z m H - * 1 c M N 'r► • — N M. 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