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Home My WebLink AboutCOM2018-00017 GRD2018-00002 - COM CD Environmental Health Review - 2/16/2018 MASON COUNTY PUBLIC WEALTH OFFICIA'.l `E f)Nli'� -� - COMMUNITY DEVELOPMENT ENVIRONMENTAL HEALTH REVIEW Amount=ece°c�a Received by, 415 N.6th Street, Shelton,WA 98584 la:e.run,oe, (360)427.9670,Ext,400 1360)275-4467,Ext.400 1.Applicant/Property Information ar: ,:cnt kame t rs;cses!'auel Number _ Ray Nelson, Owner Representative 32233-50-00009 Straet t "we Z,p 10230 NE Points Dr, Suite 200, Kirkland, WA 98033 ,t.Adrtras. �Veet City 12 F Beach Dr, Union, WA _....r,,ntact Ray Nelson � 7C r 83 -r) �U6 v-rayn@watermark-llc.com 2.Type of Review/Job 3,Job/Site Information L heca a li t fiat cppdy Residential ❑ commercial ❑Tennant Review ❑ New ❑ Replacement ❑ Pre-Application 0 + 0 = 0 Esiseng Number Proposed AddAionat Total Bedrix3rns �J Remodel ® Addition ® Other(explain below) aedr oma eed oo-ns Y"t�'°�'� � Use for rematch,additions,or repuacemenfs Renovation and addition to existing operational support bukiing accessory a ses, to r 'Side t ;i vacation property relocated from eisewtiere on compoun 2 ___ r�u __ {'.'"""yes knterror Remodels need to attach dtt Exist ny rlr�' �t,.r;d prot3osed F•t;r�7r i�'fan '"" V/ecv with ro;nn designations.Wax Paper size 11 x17, pratsert,on stwre4ne try.or r of 4.On-Site Sewage System/Sewer Information no zul ,ins Ptoposed7 iYas or n Pr,nrfy Srrvad By, ens S �l On-Site Septic System El New Existing wR'ntier�f 6np7tc+yecs iotuCp` ddel 6 ❑ Se:^er Connectinn ❑ New ❑ Existing S.Water Source ormation �;f Plumbing in structur Yes ❑ No SVVG2005-00273 if yes: Jstng tzn uxisting on iter sCWrC SYStefT1 will require a curr(:nt maintenance report Please submit a completed Water Adequacy Form. and a Record Drawing,Asburtt). Down-tents for Loth of ti°ne requiremntus mzv An incomplete submitted Water Adequacy Form may be be or.fire with Mason County Puhlic Health. O7 her requirements may apply. returned,and hold tip review process. 6.Site Plan A scaled Site Plan is required with all permits,except interior remodels. An incomplete submitted s!te plan may be rottimed,and hold up review process. Paper size for site plan can be 8.5x1 1,8.5x14,or 11 x17(rY1��C). Please use checklist below: �]Property IinesJdimensions (gi Primary Drainfield area Z Reserve Drainfield area ❑Existing/proposed wells [K Waterlines ZJ Septic Tanks location 29 Location of curtain/perimeter drains ®Direction of Slope ®Driveways/Parking areas/Easements ®Existing Structures/buildings ®Proposed Structures/Buildings �i Sewer lines/tanks M Additions ®North Arrow NScaleBar ✓ ,r Applicant Signature �� s Bate 1 0 t g Departmental Review Approval Intls. Date Notes,Conditions,Related Permits Water Adequacy Sewer/Septic System1AA1 Tenant Review Revision THIS FORM MAY BE SCANNED AND AVAILABLE FOR PUBLIC VIEW ON THE MASON COUNTY WEBSITE Revised 17(7/2015 Memo MAGNUSSON KLEMENCIC ASSOCIATES Structural+Civil Engineers 1301 Fifth Avenue,Suite 3200 Seattle Washington 98101.2699 T:206 292 1200 F:206 292 1201 W:www.mko.com TO Jim Davidson /James Davidson Architects DATE 4/3/2018 FROM Steven D Haluschak PAGE 1 OF 1 PROJECT Union Washington Residences Site Improvements PROJECT# A3071 .50 SUBJECT Septic Drainfield Calculations Summary The attached Septic Drainfield Calculations Summary identifies the basis of design for the septic drainfield for the Union Washington Residences Site Improvements, prior to the Ops Building addition. The drainfield was sized and permitted based on the bedroom count for the Union Washington Residences covered under the applicable permit. Although there are additional lots/buildings with drainage waste uses, it was determined that these uses effectively replaced uses that would occur in the lots/buildings with bedrooms. Therefore, these uses were counted and permitted under the bedroom count flowrates. For the septic field loading factors, soils at the septic field location were determined to be Type 2B with a loading factor of 1 .0 (gal/sf/day). Please let us know if you have any questions or comments regarding the basis of design and/or calculations. SDH/sdh I:\HoodCanalFacCiv\Calculations\Septic\20180403R HDCL-UWR Septic Summary Memo.docx Union Washington Residences Site Improvements 86671.52 Septic Drainfield Calculations Summary Some LOSS Requirements Enforced at 2,000 GPD: 1.5 Safety Factor and 3'Vertical Separation Calculated Total Length Number of Lots Bedrooms Flowrate Area Required Required* Lateral Length Laterals Lot 1 Beach House 4 480 Lot 2 House 4 2 240 Lot 3 House 3 2 240 Lot 4 House 2 5 600 Lot 5 House 1 2 240 Pool** 0 0 Lot 6 Secondary Dwelling from Lot 2 2 240 Lot 7 Kitchen/Laundry** 0 0 Lot 8 Cabana** 0 0 Lot 9(N) Barn** 0 0 Lot 9(5) Maintenance** 0 0 Total 17 2040 Modified Flowrate with 1.5 LOSS Safety Factor 3060 Drainfield Type 2A Soil(gal/sf/day) 1.2 2550 850 70.8 12 Type 2B Soil(gal/sf/day) 1.0 3060 1020 85.0 12 Type 3 Soild(gal/sf/day) 0.8 3825 1275 106.3 12 *Based on 3-Foot Wide Lateral Trench **Function is replacement of Function typically provided within Bedroom count I:\HoodCanalFacCiv\Calculations\Septic\20180403R UWR Septic Summary Pre-Ops Addition.xlsx\20180403 UWR Septic Summary --- _TT 051 1,J r. ...... ......... ....... ........... M 'In .................I M 0 -4 M 01, NPm ............... ............. 15ACK"-...... FR6�MRD-SET ................... 1 GHT OF WAY------ .......... ............. ............. ...... 04, ...... . ........ ................ ................ -- ----- ......... HWY 106 .............. ..... . ............ ....... ------ DITCH N, OF qK (00) . ........... __ .......... ------- 7/ J C) A Cnffl— D1 -J-0 -5: J > 0 M z 0 ---------------- ----------- T ZONING __�^. _.� .Ip `• '� �i `y`/ 'r' �� !_. �= 1 J--- _ T-LII E47 —� �,~•'' . ...........- r ........... C) J, X 4/ -40— CC) C:) ka 0 26s, E Y RD-9613 C 0 7rl 1-Z revisions. Union Washington Residences JAMES DAVIDSON C/) p CD .. 1.0 01125118 Permit SITE PLAN ARCHITECTS OPERATIONS BUILDING Mo Ad 1941 1stAve S.Suite 3G Co Seattle,WA 98134 Ph 206.264.4999