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INTERIM PLAN (See SDBC Interim Discharge Prevention Plan): <br />1. The 4,500 gallon containment vault is not allowed to discharge to the onsite storm system. <br />4. The isolation valve located downstream of the 4,500 gallon containment vault shall remain closed. <br />5. The containment vault storage will be checked once a day, at a minimum. <br />6. The vault must be completely pumped out after a total of 0.33 inches of rainfall from last pump cycle. <br />7. Owner shall retain the services of a certified pumping company to maintain the 4,500 gallon vault volume. <br />8. Disposal of the pumped fluids shall be in accordance to Washington State Laws. <br />CB RIM-506.71 <br />IE 6'PVC(S)-504.63 <br />IE 6"PVC(SE)-504.63 <br />CB RIM-506.02 <br />IE 4"PVC(S)=504.81 <br />CB RIM-505.50 <br />IE 4°PVC(W)-503.40 <br />IE 4"PVC(N)=502.70 <br />IE 6"PVC(N):502.70 - <br />IE 6"PVC(SE)502.40 <br />IE 8"DI(W)-502.35 <br />IE 4"F1_EX(NW)-502.30 <br />CB RIM-505.31 <br />IE 6"PVC(SE)-503.61 <br />- <br />IE 8"PVC(S)=503.61 <br />IE 8"PVC(N)-503.57 <br />VLT RIM-505.70 <br />IE 6'PVC(NW)-503.45 - <br />IE 6"PVC(SE)=503.45 <br />CB RIM-505.76 <br />IE a"PVC(NE)-503.50 <br />_ <br />E 6"PVC(SW)=503.48 <br />"VLT <br />Isolation vale in close <br />position! Al I Upstream flows <br />RIM=505.37 <br />E 6'PVC(SE)=504.02 <br />directed to 4,500 gallon <br />E s"Pvc(E)=503.37 <br />containment vault <br />E 6"PVC(NE)=503.37 <br />IE 6"PVC(N)-502.57 <br />CB RIM-505.50 <br />IE II <br />IE <br />IE 6"PVC(N)=503.75 <br />CB RIM-505.59 <br />IE 6"PVC(SE)=503.82 <br />IE 6'PVC(NW)-503.77 <br />CB RIM-505.01 <br />IE 6. <br />IE J <br />Containment Vault Storm Capacity Check: <br />4,500 gallons = 601.6 CF of storage <br />% Tributary Basin Area - 21,741 SF <br />Rainfall amount to fill storm storage volume: <br />601.6 CF/21,741 SF x 12" per foot = 0.33 inches <br />CALC WRF <br />CAD ETS <br />PM WRF <br />I <br />BRIGHTON SQUARE LLC <br />620 SE EVERETT MALL WAY <br />TL 2805180030-8800 <br />BUILDING <br />CB RIM-506.13 CB RIM-506.41 6' CHN <br />IE 6"PVC(NW)=504.97 IE 4"PVC(S)-505.24' /_ _ 551 1- - L oFNJ \ ^ <br />CONC RAMP <br />BUILDING ¢ LNK\ <br />ASPH o n D <br />- - '- - - / ® � � ONC ALL I I <br />m - <br />TANK <br />y 8" CONC WALL W/ <br />/ 7' CHN LNK AC <br />50 BUILDING <br />O O O x B RIM =506.14 <br />IE 4'PVC(S)=504.94 t-v }-� I ASPH <br />CONIC <br />BUILDING <br />f <br />SHUTOFF <br />21, A\ <br />AreaT' taryto- ¢ <br />4b ga Ion 1 ® dt \ <br />t;ontam ent vault <br />\\'J H+ CONIC 0: <br />a P <br />h om d <br />0 ¢I \ I .. 6 <br />e ¢ ASPH I ••••.•AsphaltB� <br />e I I 8' CONC W L W/ ¢ <br />I S,) SD I I 7' CHIN L FNC <br />4,500 gallon I ILI " <br />J c containm*nt vault <br />/ I v \309- _ - - <br />�506� <br />1 \ <br />I \ <br />'CURB - - - - -I CONC \ ¢ <br />CONIC <br />ASPH <br />8" BRICK <br />WALL <br />BUILDING CB RIM=508.91 $ <br />IE 8"CONC(SE)-504.91 <br />NELSON FAMILY PROPERTIES LLC IE 8"CONC(W)-504.91 <br />9826 7TH AVE SE 8" BRICK i <br />TL 280 1180030-7300 WALL <br />BUILDING <br />BUILDING ' <br />CW III <br />CB RIM"507.0o <br />IE 8"CONC(NW)=505.60 <br />Dye testing has shown <br />this catch basin does I <br />not flow to the 4,500 <br />BRIGHTON SQUARE LLC gallon containment vault <br />620 SE EVERETT MALL WAY <br />TL 2805180030-4900 <br />I <br />11255 Kirkland Way, Suite 300 <br />Kirkland, WA 98033 <br />P. 425.827.2014 1 f. 425.827.5043 <br />.............................................. . . <br />Civil j Structural Planning j Survey <br />An Enaineennc Services C0mnanv wunu roronnnn: nnn, <br />LEGEND <br />FND <br />1 <br />N WATER VALVE <br />-� <br />00 LUMINAIRE(SINGLE) <br />1-3K <br />HYDRANT <br />& PEDESTRIAN LIGHT POLE <br />BRASS DISW/ W; <br />"X" STAMP IN <br />A FDC <br /># AREA LIGHT <br />4"X4' CONC MON <br />Ki POST INDICATOR VALVE <br />® GAS METER <br />IN CASE <br />WATER BLOW OFF <br />0 GAS VALVE <br />® WATER METER <br />+ MONITORING WELL <br />m IRR. CONTROL VALVE <br />-a SIGN <br />QS MANHOLES (SS/SD) <br />® MAILBOX <br />NEWS PAPER BOX <br />NI <br />CB (TYPE 2) <br />30, <br />TC TRASH CAN <br />p• <br />❑ CB <br />CXD03 ROCKERY <br />o <br />Q POWER TRANSFORMER <br />x SPOT ELEVATION <br />I <br />©© POWER/COMM. VAULT <br />* SIZE & TYPE (CONIFEROUS TREE) <br />CW i <br />QW WATER/UTILITY VAULT <br />(D <br />POWER MANHOLE <br />SIZE & TYPE (DECIDUOUS TREE) <br />© COMM, MANHOLE <br />0 MAGNETIC NAIL W/ WASHER <br />N <br />® WATER MANHOLE <br />® REBAR AND CAP (SET) <br />® REBAR AND CAP (FOUND) <br />V <br />�I <br />C POWER METER <br />x TACK AND LEAD <br />Z" <br />I <br />0 SURFACE JUNCTION BOX <br />0 HUB AND TACK <br />O CASED MONUMENT <br />Ia <br />0 SUBSURFACE JUNCTION BOX ® SURFACE MONUMENT <br />O POWER/UTILITY POLE <br />Q POWER/UTILITY POLE W/DROP SURVEY CONTROL POINT <br />rill <br />�- ANCHOR POLE <br />E- GUY ANCHOR <br />© TRAFFIC SIGNAL POLE <br />STREET LIGHT <br />0*0 LUMINAIRE(DOUBLE) <br />I <br />CENTER LINES <br />PROPERTY LINES <br />CB RIM-509.27 <br />RIGHT-OF-WAY LINES <br />IE 2"DI(N)-507.87 <br />SUBDIVISION LINES <br />1 <br />IE 4"PVC(S)-506.97 <br />QUARTER SECTION LINE <br />_------- <br />SIXTEENTH SECTION LINE <br />1 <br />HISTORICAL LINES <br />EASEMENT LINES <br />1 <br />1v <br />w <br />LOT UNES <br />DITCH LINE <br />�I•T <br />WATER LINE <br />laa <br />IRRIGATION WATER LINE <br />Sao <br />�I <br />SRSEWER LINE <br />SD <br />STOTORMM D DRAIN LINE <br />\ <br />.....___._......_..__...c._..._-.__ <br />GAS LINE <br />I <br />a <br />UNDERGROUND POWER LINES <br />coM <br />UNDERGROUND COMMUNICATION LINES <br />0Nl <br />OVERHEAD UTILITY LINES <br />0Hw <br />HIGH WATER LINE <br />ft <br />WETLAND BOUNDARY LINE <br />w <br />-0-0-0-0-0- <br />-X-X-X-X-X- <br />-0 - 0- 0- <br />CHAIN LINK FENCE <br />WIRE FENCE <br />WOOD FENCE <br />S <br />O9` <br />EDGE OF VEGETATION/HEDGE LINE <br />I <br />I <br />� <br />Sl i <br />Ir <br />I <br />3 <br />I <br />FND 1-3/4- <br />BRASS DISK W/ <br />PUNCH IN CONIC <br />MON IN CASE <br />(DN-0.60') 1 <br />INTERIUM DRAINAGE PLAN <br />EVERETT STATION <br />HORIZONTAL DATUM <br />HORIZONTAL DATUM: NAD 83/11, WASHINGTON COORDINATE SYSTEM NORTH ZONE. BASED <br />ON CPS MEASUREMENTS UTILIZING THE VIRTUAL REFERENCE NETWORK AND CONSTRAINED TO <br />SSMH RIM=506.92 <br />THE FOLLOWING CONTROL POINT: <br />- CL CHANNEL 8" CONIC <br />IE=491.46 <br />GSOW DESIGNATION: N 21228 <br />MONUMENT ID: SW CORNER SECTION 18, TOWNSHIP 28 N., RANGE 5 W., W.M. <br />FOUND 1-3/4" BRASS DISK IN 4- CONCRETE MONUMENT DOWN 0.35'. <br />NORTH-334091.7255 <br />EAST- 1298324.612 <br />BASIS OF POSITION SCALED TO GROUND ABOUT PACE CP #1 BY A COMBINED GRID FACTOR <br />OF 0.999928905. <br />VERTICAL DATUM <br />VERTICAL DATUM: NAVD 88 BASED ON GPS MEASUREMENTS UTILIZING THE VIRTUAL <br />REFERENCE NETWORK AND CONSTRAINED TO THE FOLLOWING VERTICAL BENCHMARK: <br />DESIGNATION: BM GSOWO 21228 <br />MONUMENT ID: SW CORNER SECTION 18, TOWNSHIP 28 N., RANGE 5 W., W.M. <br />FOUND 1-3/4" BRASS DISK IN 4" CONCRETE MONUMENT DOWN 0.35'. <br />ELEVATION = 495.32 FEET <br />ALL DISTANCES SHOWN ARE GROUND DISTANCES UNLESS OTHERWISE NOTED. TO CONVERT ALL <br />DISTANCES TO GRID DIVIDE 1/1.0000711. <br />THE LOCATION AND DESCRIPTION OF ALL SURVEY MARKERS SHOWN HEREON ARE BASED ON <br />FIELD OBSERVATIONS TAKEN IN APRIL .2023. UNLESS OTHERWISE INDICATED. <br />WORK PERFORMED IN CONJUNCTION WITH THIS SURVEY UTIUZED THE FOLLOWING EQUIPMENT <br />AND PROCEDURES: (A) 1" TRIMBLE S7 SERIES ELECTRONIC TOTAL STATION, MAINTAINED TO <br />THE MANUFACTURER'S SPECIFICATIONS PER W.A.C. 332-130-100. (S) FIELD TRAVERSE, <br />EXCEEDING REQUIREMENTS SET FORTH IN W.A.C. 332-130-090. <br />N <br />(C) LEAST SQUARES ADJUSTMENT USING StarNet VERSION 9.0 EXCEEDING REQUIREMENTS PER <br />W.A.C. 332-130-080. <br />THIS SURVEY WAS PERFORMED WITHOUT THE BENEFIT OF A TITLE REPORT AND DOES NOT <br />J) <br />PURPORT TO SHOW ALL EASEMENTS. <br />THIS TOPOGRAPHIC SURVEY DRAWING ACCURATELY REPRESENTS SURFACE FEATURES LOCATED <br />DURING THE COURSE <br />R. <br />1 WA 9 <br />OF THIS SURVEY. UNDERGROUND UTILITIES SHOWN HEREON ARE BASED <br />SOLELY UPON INFORMATION PROVIDED BY OTHERS AND PACE ENGINEERS, INC. DOES NOT <br />y of <br />ACCEPT RESPONSIBILITY OR ASSUME LIABILITY FOR THEIR ACCURACY OR COMPLETENESS. <br />0 10 20 40 CONTRACTOR/ENGINEERS SHALL VERIFY EXACT SIZE AND LOCATION PRIOR TO CONSTRUCTION. <br />HORIZ. <br />Scale In Feet <br />CALL FOR LOCATE: UTILITY LOCATION SERVICE: 811 <br />3130 <br />T�EnyP"� <br />PORTION OF: SW 1/4, SW 1/4, SECTION 18, T. 28 N., R. 5 E., W.M. <br />OA'AL6LA11D <br />UU <br />5-8-2023CALE <br />TOPOGRAPHIC SURVEYPROJECT <br />No. <br />1" = 20' <br />FOR <br />23450.10 <br />[DATE <br />URVEY TEAM ES/JG <br />ELD BOOK 7s2c <br />NELSON FAMILY PROPERTIES LLCwc: <br />v23aso-sRv.Dwc <br />SHEET 1 OF 7 <br />