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HomeMy WebLinkAboutMEP2000-00006 - MEP Plot / Site Plans - 4/18/2000O) 00)) RAY ALLEN N z 0 w • d c/) 0 HOLMAN & ASSOCIATES PROFESSIONAL LAND SURVEYORS W. 131 PYRAMID COURT P.O. BOX 2379 SHELTON, WASHINGTON 98584 (360) 426-2990 R o C) a d • 0 d x • • TYPICAL CROSS SECTION OF BIOSWALES 0 O cz c. o Oo o ao Q0 R3o' i l TYPICAL CROSS SECTION OF ALL PAVEMENTS 0 N x a3wnssd NVIOIJ30/ 0000o 0 0000 cu 0 0 > 0 0 - 0 0 a t 0 0 w 3 0 (O N Q. 0 J U 00 a.To ih daWi cc) N O O CO O N CD tO N N co • L9 0 000 0 wwww > • >• >> wwww EEEE 0 0 0 to- 880) >-rr>- 00 ' N 00000 4. s 0 o m N N L 0 E E 0 ict U u7 w 0 0 0 w w 2 0 z Q 0 z a z 0 J li z Q Q w 0 F- 0) U U_ r-)NCD x co La oi N 0-0000 SOd0 `c 00 d N N OW NO. x (W l �1 �� 3w 1 `II 4- G \inn ?� mo' 0 0 N ai N W N-iE- L 3 0 0 y0•O 7 CD q - , L. 0 ct 0p II N CO 00 Q° � o o❑R, c ai La N M 0 0 M � N N 0 <j 0000 OR 31003Hos 3dld Ad „9 WU ? co cow Qcio�W u oo0a0o ,SF POND FLOOR 66' X 15 E r7 N U) 1:;1 Peak Stormwater Elevations when Property is Fully Developed 100QoOo o$0 00 • afig • II CO (0 Ci N C9 X 0 0 co uo co 0(0 (0 COui CO (N N N N 000 0 wwEll w c c c c W W W > w EEEE 0 0 0 0 wu)coco � tt� r}r} N N 0 .0 4. Lo G 0 ('') 00 a. rn 0& :tI N V) w 0 0 ¢ 0 z Q 0 z 0 z 0 1- J LL z Q Um 0 w 0 0 U 0 65'179S 3 „Z1,917,10 N 0 0 0 o • LP'LL9 3 „Z1,917.10 N ct Ct 0 .at z0 � V 0 cc oiN �Q N� A�3 "Z `moo *E Ncr n 0' Rs. 0 a:n. .; • N.W u J 2' Pressure 4 L call; j:1 cf .17Z • lb N cc n 0 Ira rap r„) rn 15 (o% N X of NI- Xcoal- W NZ N.OW X / 0 PON of 0 N/Z y X 0 N OWNER: • RAY ALLEN 190I PARKWOOD DR. OLYMPIA, WA 9850I 360-943-7722 W 1aci � �V 0 X d▪ W N / • / / / // / / / / ) / / / j, / / ENGINEERS CERTIFICATE I HEREBY CERTIFY THAT THE ENGINEERING SHOWN ON THIS DRAWING WAS PERFORMED BY ME 0R UNDER MY DIRECTION. /9 l MARLEY L. Y� TJNG '( bATE: OD -J 1 / / / / / / / / / / / / / / / / / / 0 /� / / / 1 / / / 0) N 0 / 1 1 1 I1 / / / / (K V) O / / / / / / / airmrS 9/136/112, i / 0 0 J In0 0 K) 0 N 10 n 0 0 v CO Q W QLl 0 It 0 W Z U • Et 0 0 W 0 --I R j act u)Zr� `,� Zi;f)Z Z W il 0 0 O • 3 J � J m Z�WonW o SLou) 0 I0 0W0 W� � � 0 Q � otN room W cb zcc N 0 co Q 0 W z�N 0 16Ct zii Q W 00,E ? ���Q iki 0 0 0 U 0• Z W Q ,,JkR) k •J U p ( Q pp Z OQ0'z' ,J W0 W, N � � � N ii rr = DIRECTION OF SURFACE WATER FLOW MARLEY L. YOUNG CONSULTING CI1,1L ENGINEER P.O. BOX 1.343 SHELTON, WA. 98584 (.360)426-7475 DRAWN BY: /T),L. y CIIECKED BY: M.L.Y DATE 4- / .y' - 0 0 SCALE JOB NO. 99-28 .SHEET /OF2. = EXISTING WELL 0 LD CD s J N CO II 00 = UNDERSTORY — Diciduous — 6' SHOULDER II w �V J 14-1 •- 1U 0 00O 00aC ti CD OC-UJ� QUO PROPOSED LIGHT INDUSTRIAL DEVELOPM ENT STORM DRAINAGE DESIGN • MANUAL J FIG B2 To 1'r r:LTER FABRIC VAiERIAL 00' WIDE ROLLS USE STAPLES OR WIRE RINGS 10 ATMCII ►APRIC 10 WIRE 1 r r ■ 14 Oa WIRE rABnic OR toUIvILENr BURY COTTON Or NITER MATERIAL NI 1 l 12' 1Rt1ICII r MAX r r 4- WOOD POSTS, STANDARD 0R BETTER OR EQUAL ALTERNATE. STEEL FENCE POSTS Y ■ 7.' w 1.•'•e VIRE ,ABRIC ur EOuly. rILTER rAORIC MATERIAL PROVIDE 2/4- TO 1-1/1' 'o WASHED ROCK 0R IIATIVE 4°O BACKFILL 011 POT1( SIDES 00 OF min FABRIC FENCE Oo0 110°0 2- ■ 4- WOOD rOST ALT. STEEL FENCE POSTS s'o- REFERENCE: KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL DATE:, FEB. 1991 FILTER FABRIC FENCE DETAIL STORM ' DRAINAGE DESIGN MANUAL FIG B I3 A ' ' B =id I. 11 -21 et WEDGE LOOSE STRAW BETWEEN BALES FCIHT A S'4C41LD BE HIGHER TIWI POINT B • PROPER PLACEMENT C° STRAW BALE BARRIER IN DRAINAGE WAY WRiE TM ANCHOR FIRST STAKE lOwMos 2 REBARS. STEF•I. rNCKETs PREVIOUSLY WO BALE on 2' r T' STAKES 1 1/2- • 10 2' IN TILE GROUND BME TIES 1 : lry I. - �III-11I-li 11-��1l1I=11 II- al,_� Il-nl-I) 11 '1LP - ' 1 n� ii -IiI-- I 1 IQ11'' • -.1=❑�i11-11>wIP ATP' AHC110R111C 1ALES REFERENCE: • KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL JULY ST'RAIY AND MAY DALE BARRIERS 1988 STORM DRAINAGE DESIGN MANUAL SHEET FLOW i BALES OF STRAW STAKED DOWN PI AN SINGLE ROW OF BALES OF STRAW TO BE PLACED PRIOR TO THE START CF ROUGH GRADING 4• MIN - FILTERED RUNOFF COAIPACIED SOIL 10 PREvENI SLIPPING STORM DRAINAGE DESIGN MANUAL FIG B8 BLOCK AND GRAVEL FILTER RUNOFF WATER WITH SEDIMENT SEDIMENT WASHED ROCK rn1ER rADRK: . • 0000e 0 e °e°.° 0 FILTERED WATER CONCRETE BLOCKS GRAVEL AND WIRE MESH FILTER RUNOfF WA TER o°°0•e°e°oo`°0`e`i°o°o`e`�°o°a°°0°o°o°c°o° D 0 0 0 rani SEIM4EM,+o:a:o:o:o:e:�:oepsasoaD00�D:ooeaeOeQeeoQeeeO°` ♦ 00:::°q:p4�0°0°0°O°0°0°0°E�0�0°O�O�ab0�0°Oo0po0. ral Yi' Ly✓�l1-.. . • DROP INLET WRH ORATE 18" MIN METERED WATER WASIIED ROCK (1r MIN DEPriM) MIRE MESH Rim METER FABRIC ON TOP REFERENCE: KING COUNTY. WASHINGTON. SURFACE WATER DESIGN MANUAL DATE: JULY 198-E INLET SEDIMENT PROTECTION STORM DRAINAGE DESIGN MANUAL DROP INLET WITH GRATE STAKES STAKE FILTER FABRIC 'RUNOFF WATER WITH SEDIMENT jll-ill 'IIJI irl Itr I -ni Ill-I� C~ 11=1►1-1ij- Ci Lil-I IINI_I-1_I.I IL=lI1Jl BURIED FILTER A FABRIC FIG B9 FILTER FABRIC rLow REFERENCE: KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL DATE: JULY 1988 FIG B4 SEDIMENT LADEN RUNOFF • l-i1=1' i 1`111=111--j1-I [Lilt I1a111I-1n l i I=111=1-1I1-iI 1=11=1 IFfIl-111-1F li-I�i_I-1 - 1 -I 1iI 1"111i1='n1-1T 11 n-IG �I 1 n �iT i ffl-1j1- te r 1- J � al 1-11 '-In1n1Jl AIL 11 i �-Ii, 111- 1 1 ii 'iUiala I it iT-n, 111=1111_- - r I1--111-111-11-Ill-il-[11-iIi-Ili-ill- ii.TI1bA ligIll 1-iII- -11 r 1111111r1iL CROSS-SECTION OF A PROPERLY INSTALLED STRAW BALE REFERENCE: 'PUGET SOUND STORMWATER MANAGEMENT DRAFT DATE: JULY 1988 STRAW AND HAY DALE HARRIERS • FILTER FABRIC FENCE INLET FILTER • STORM DRAINAGE DESIGN MANUAL PROvIPE rip VIPTH Or INGRESS/EGRESS AREA REFERENCE: KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL DATE: JULY 1988 STABILIZED CONSTRUCTION ENTRANCE EROSION AND SEDIMENT CONTROL REQUIREMENTS EROSION AND SEDIMENT CONTROL REQUIREMENT: 1) WHERE APPLICABLE, THIS PROJECT SHALL COMPLY WITH LARGE PARCEL EROSION AND SEDIMENT CONTROL REQUIREMENTS 1 THRU 15 FOUND IN SECTION 1-2.5 OF THE WASHINGTON STATE DEPT. OF ECOLOGY STORMWATER MANAGEMENT MANUAL FOR PUGET SOUND BASIN (THE TECHNICAL MANUAL). THE SOIL ON THE PORTION OF THIS PROPERTY TO BE IMPROVED IS GRAVELLY SANDY LOAM, 0-5%. THE DEPTH OF TOPSOIL IS ONLY 2-3 INCHES. AFTER THE TOPSOIL IS REMOVED AND STOCKPILED, THE POTENTIAL FOR MUD AND DEBRIS TO BE TRACKED IS VERY MINIMAL. THE POTENTIAL FOR DIRTY WATER AND SILT TO MIGRATE OFF SITE IS ALSO VERY MINIMAL. IT IS EXPECTED THAT THE EROSION CONTROL BMPS WILL ONLY BE NECESSARY UNDER EXTREME CONDITIONS. 2) IF NECESSARY THE ACCESS SHALL BE MAINTAINED TO COMPLY WITH EROSION AND SEDIMENT CONTROL REQUIREMENTS FOUND IN THE WASHINGTON STATE DEPT. OF ECOLOGY STORMWATER MANAGEMENT MANUAL FOR PUGET SOUND BASIN (THE TECHNICAL MANUAL.) 3) WHENEVER CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED STREETS, PROVISION MUST BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT ONTO THE PAVED STREET. IF SEDIMENT IS TRANSPORTED ONTO A STREET CREATING A HAZARD, THE STREET SHALL BE CLEANED IMMEDIATELY, AND THOROUGHLY CLEANED AT THE END OF EACH DAY. THIS CONDITION IS NOT EXPECTED TO BECOME AN ISSUE. 4) SEDIMENT TRAPS, SEDIMENT BARRIERS AND OTHER BMPs INTENDED TO TRAP SEDIMENT ON SITE SHALL BE CONSTRUCTED AS NECESSARY. 5) ALL EXISTING OR NEWLY INSTALLED STORM DRAIN INLETS THAT MAY RECEIVE SEDIMENT SHALL BE PROTECTED SO THAT CONTAMINATED STORMWATER RUNOFF SHALL NOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. SEE FIG. B8 AND B9. THERE IS NO PUBLIC STORM DRAIN SYSTEM AND ALL STORM RUNOFF IS DESIGNED TO REMAIN ON SITE. 6) CATCH BASIN INSTALLATION SHALL BE IN CONFORMANCE WITH SECTION 7-05 OF THE WSDOT STANDARD SPECIFICATIONS. 7) THE CONTRACTOR MUST USE DUE CARE WHEN SETTING THE CATCH BASINS AND THE STORM SEWER PIPES TO THE ELEVATIONS SPECIFIED. 8) REFER TO EROSION CONTROL BMPs FIGURES B2, B3, B4, B8, B9 & B16 ON THIS PAGE. FILTER FABRIC FENCE DETAIL (FIG. B2) 1. FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID USE OF JOINTS. WHEN JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY AT A SUPPORT POST, WITH A MINIMUM 6-INCH OVERLAP, AND SECURELY FASTENED AT BOTH ENDS TO POST. 2. POSTS SHALL BE SPACED A MAXIMUM OF 6 FEET APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM OF 30 INCHES). 3. A TRENCH SHALL BE EXCAVATED APPROXIMATELY 8 INCHES WIDE BY 12 INCHES DEEP ALONG THE LINE OF POSTS AND UPSLOPE FROM THE BARRIER. 4. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH SUPPORT FENCE SHALL BE FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY-DUTY WIRE STAPLES AT LEAST 1 INCH LONG, TIE WIRES OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MINIMUM OF 4 INCHES AND SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. 5. THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO THE FENCE, AND 20 INCHES OF THE FABRIC SHALL BE EXTENDED INTO THE TRENCH. THE FABRIC SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. 6. WHEN EXTRA -STRENGTH FILTER FABRIC AND CLOSER POST SPACING IS USED, THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED. IN SUCH A CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO THE POSTS WITH ALL OTHER PROVISIONS OF ABOVE NOTES APPLYING. 7. FILTER FABRIC FENCES SHALL NOT BE REMOVED BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED. 8. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. STRAW AND HAY BALE BARRIERS (FIGS. B3-84) 1. BALES SHALL BE PLACED IN A SINGLE ROW, LENGTHWISE, ON THE CONTOUR, WITH ENDS OF ADJACENT BALES TIGHTLY ABUTTING ONE ANOTHER. 2. ALL BALES SHALL BE EITHER WIRE -BOUND OR STRING -TIED WITH BINDINGS ORIENTED AROUND THE SIDES RATHER THAN THE TOPS AND BOTTOMS OF THE BALES. THIS WILL PREVENT RAPID DETERIORATION OF THE BINDINGS. 3. THE BARRIER SHALL BE ENTRENCHED AND BACKFILLED. A TRENCH SHALL BE EXCAVATED THE LENGTH AND WIDTH OF THE PROPOSED BARRIER TO A DEPTH OF AT LEAST 4 INCHES. AFTER THE BALES ARE STAKED AND CRACKS BETWEEN BALES CHINKED AS NECESSARY, THE EXCAVATED SOIL SHALL BE BACKFILLED AGAINST THE BARRIER. BACKFILL SOIL SHALL CONFORM TO THE GROUND LEVEL ON THE DOWNHILL SIDE AND SHALL BE BUILT UP TO 4 INCHES AGAINST THE UPHILL SIDE OF THE BARRIER. 4. EACH BALE SHALL BE ANCHORED BY AT LEAST TWO STAKES OR REBARS DRIVEN THROUGH THE BALE. THE FIRST STAKE IN EACH BALE SHALL BE DRIVEN TOWARDS THE PREVIOUSLY LAID BALE IN ORDER TO FORCE THE BALES TOGETHER. INLET SEDIMENT PROTECTION/FILTER FABRIC FENCE INLET FILTER (FIGS. B8-139) 1. PLACE CONCRETE BLOCKS LENGTHWISE ON THEIR SIDES IN A SINGLE ROW AROUND THE PERIMETER OF THE INLET, SO THAT THE OPEN ENDS FACE OUTWARD, NOT UPWARD. THE ENDS OF ADJACENT BLOCKS SHALL ABUT. THE HEIGHT OF THE BARRIER CAN BE VARIED, DEPENDING ON DESIGN NEEDS, BY SPACING COMBINATIONS OF BLOCKS THAT ARE 4 INCHES, AND 12 INCHES WIDE. THE ROW OF BLOCKS SHALL BE AT LEAST 12 INCHES BUT NO GREATER THAN 24 INCHES HIGH. 2. PLACE WIRE MESH OVER THE OUTSIDE VERTICAL FACE (OPEN END) OF THE CONCRETE BLOCKS TO PREVENT STONE FROM BEING WASHED THROUGH THE BLOCKS. USE HARDWARE CLOTH OR COMPARABLE WIRE MESH WITH WINCH OPENINGS. 3. PILE STONE AGAINST THE WIRE MESH TO THE TOP OF THE BLOCKS. USE 3/4-TO 3-INCH GRAVEL. 4. PLACE WIRE MESH OVER THE DROP INLET SO THAT THE WIRE EXTENDS A MINIMUM OF 1 FOOT BEYOND EACH SIDE OF THE INLET STRUCTURE. USE HARDWARE CLOTH OR COMPARABLE WIRE MESH WITH WINCH OPENINGS. IF MORE THAN ONE STRIP OF MESH IS NECESSARY, OVERLAP THE STRIPS. PLACE FILTER FABRIC OVER WIRE MESH. 5. PLACE 3/4-INCH GRAVEL OVER THE WIRE, MESH. THE DEPTH OF STONE SHALL BE AT LEAST 12 INCHES OVER THE ENTIRE INLET OPENING. EXTEND THE STONE BEYOND THE INLET OPENING AT LEAST 18 INCHES ON ALL SIDES. 6. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT, THE STONES MUST BE PULLED AWAY FROM THE INLET AND CLEANED OR REPLACED. STABILIZED CONSTRUCTION ENTRANCE (FIG. B16) 1. MATERIAL SHALL BE 4" TO 6" QUARRY SPALLS AND MAY BE TOP - DRESSED WITH 1" TO 3" ROCK. (STANDARD SPECIFICATIONS). 2. THE ROCK PAD SHALL BE AT LEAST 12 INCHES THICK AND 100 FEET LONG. WIDTH SHALL BE THE FULL WIDTH OF THE VEHICLE INGRESS AND EGRESS AREA. SMALLER PADS MAY BE APPROVED FOR SINGLE-FAMILY RESIDENTIAL AND SMALL COMMERCIAL SITES. 3. ADDITIONAL ROCK SHALL BE ADDED PERIODICALLY TO MAINTAIN PROPER FUNCTION OF THE PAD. 4. IF THE PAD DOES NOT ADEQUATELY REMOVE THE MUD FROM THE VEHICLE WHEELS, THE WHEELS SHALL r1E HOSED OFF BEFORE THE VEHICLE ENTERS A PAVED STREET. THE WASHING SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK AND WASH WATER SHALL DRAIN TO A SEDIMENT RETENTION FACILITY OR THROUGH SILT FENCE. TOPOGRAPHIC SURVEY PRELIMINARY S TORM WA TER CONTROL FOR RAY ALLEN & MICHAEL ALLEN IN NE 1/4, NW 1/4 SECTION 12, TOWNSHIP 20 NORTH, RANGE 4 WEST, W.M. Container completely encloses storage tank The dike ahaI provide a volume that le the Covered, greater of either 10% of the total enclosed tank volume or 110% of the volume contained in the largeat tank. designated area Figure IV-4.9 Covered and Bermed Containment Area IV-4-12 Outside Edge of Building Downspout from Roof and Gutter Downspout Collector Cleanout Finished Grade of rSidewalk and/or Paving 45° PVC Elbow 45° PVC Elbow 45° PVC Elbow Drains Toward Catch Basin 90° SECTION VIEW Typical Detail of Roof Downspout Collector and Cleanout FEBRUARY, 2.992 3" Adjustment Section Catch Basin Type 1 Downspout from Roof and Gutter Downspout Collector OWNER: RAY ALLEN 190 I PARKWOOD DR. OLYMPIA, WA 98501 360-943-7722 Cleanout Finished Grade of Sidewalk and/or Paving 45° PVC Elbow 4, RIO 45° PVC Elbow 45° PVC Elbow Drains Toward Catch Basin SECTION VIEW Typical Detail of Roof Downspout Collector and Cleanout ENGINEERS CERTIFICATE 1 HEREBY CERTIFY THAT THE ENGINEEFaNG SHOWN ON THIS DRAWING WAS PERFORMED BY ME OF? UNDER MY DIRECTION. '-711 MARLEY L. 2" Pressure Line CB Type 1 Wet Well w/ Submersible Pump CB Type 1 SC Separator WELL Bi-Directional Vaned Grate Elev. 269.80 Elev. 269.42 PVC Cap Elev. 269.20 OUT I.E. 268.50 4" Diam. Schedule 80 PVC Pipe to Sump Pump Spill Collector Open end of PVC Elev. 267.00 Elev. 265.48 SPILL CONTROL SEPARATOR 'B - B' � c -/7- 00 DATE: 1 EXPIRES 9/06/0? I �--26' 8 Diam Cast Iron Traffic Rated Cover, set to Asphalt Grade 6" Diam. PVC Pipe Casing VC PIPE TO CARRY WATER TO POND 4" PVC PIPE TO CARRY ROOF WATER TO POND 2" Brass Gate Valve 2" Diam. PVC C900-CL200 Discharge Pipe 1.0' 2" Diam Galvenized Pipe I.E. 269.20 Pump On Elev. 268.25 Elect. Cable as per Pump M an ufactorers Specification IN I.E. 268.45 4" Diam. Schedule 80 PVT= Pipe From Spill control Separator MARLEY L,. YOUNG CONSULTING CIVIL ENGINEER P.O. BOX 1343 SHELTON, IVA. 98584 (J60)426-7475 DRAWN BY: rr) , 1. y, CHECKED BY: M, L. Y DATE SCALE JOB NO, 99-28 SHEET 2 OF 2 Top of Grate 269.00 Equals Bottom of Bio Swale Precast Driveway Drain 17%"L x 17'/5"W x 18%"D Outside Measurements 2" Diam. PVC Pressure Pipe I.E. IN 268.30 CB Designed to Fill Up and Overflow into Bio Swale. Bottom Elev. 267.43 BIO SWALE CONCRETE INLET 'D - D' Pump Stop Floor Elev. + 6 inchs. WET WELL 'C -C' Solid metal Cover Traffic Rated, Elev 270.30 2" Check Valve 2" Union 12" Adjustment Section 2" 90 Bend 2" Diam Galvenized Pipe Hydromatic SKV50; Submersible Pump or equivilent with 2" Diam. Discharge and Piggybback Switch Plug; Pumping differentials up to 35 inches can be obtained when the float is tethered to the discharge pipe. For maximum pump life, adjust tether length for deepest drawdown. Catch Basin Type 1 Elev. 266.20 PROPOSED LIGHT INDUSTRIAL DEVELOPM ENT 0 z Q i J c Q Z a— O cp 0 a o Q z LLJ a_ RAY ALLEN 4 WEST, W.M. cW n N • • • • HOLMAN & ASSOCIATES PROFESSIONAL LAND SURVEYORS W. 131 PYRAMID COURT P.O. BOX 2379 SHELTON, WASHINGTON 98584 (360) 426-2990 TYPICAL CROSS SECTION OF BIOSWALES 0 co_ CO ♦`i Q N. co N NN Ct 0 p y'� •r� W 0atCD Q N.Li) „1) N. Nz rn of • rn l.0 a 0. C N � x 0.17' Min. Thickness of Asphalt Concrete Pavement Class B 16 II fa N O x 0.25' min. thickness Compacted Depth of Crushed Surfacing Top Course 7o CO Z R30 / TYPICAL CROSS SECTION OF ALL PAVEMENTS O3W(ISSV NVI0I2:1301 0 J U 61,9 t O d N cT) co d2,M' m u__ - • o,corr.- y M.N(o co(O(Dui (0(0(0co N N N (V • ;;; o n. DWWw • 4. 3 ww• 'w'w CO • E E E O 0 0 0 o co CO CO CO w >->->-} 'Cu [C 8 — 3 0 as a) a -G co 4. oco mac, t v7 w 0 0 0 W 2 cc w 0 z 0 z 0 z 0 I— _J IL z a Q coQ 0 LL 0 TYPICAL CROSS SECTION m to N Peak Stormwater Elevations when Property is Fully Developed .o�� co Lo n N W 000 00 0 0 0 EDO 0 0 0 0 0 0 0 0 0 00 o 0 0 0 1) 0000 0 rx N. �O. \: 00 N %� NW No a) a4- o(n CO a N O .: •x I O8 37nO3HOS 3dld Ad „9 Et W U v) 23 z 0 OLLIZW LL(/)QOLL aQo0o0po0o 00 a)o iz cn op L. CO y E o.ro"' a Lt >, II ao,a'° 0 In vol 0 V i, 10'\ N co w 0 0 0 z 0 z O 0 z 0 1- J_ lL z Q ( 00 m LL O TYPICAL CROSS SECTION 65'119S 3 „Z1,917.10 N © 0 0 a a 0 0 O >-r< POND FLOOR 66' X 15' .. E ID aD 0 10 CO x L-177LL9 3 „Z1,91,.10 N ct ce O U� z o0 Z4-.0 Wcr (0 n_ N� >3 u no NI- CC �o "0 CO. CI; . N (1). 0 cCi NW x 2' Pressure Line r LFai Et) cu N x • • • V) O N v (o J O K / 11 RI / Il La car- W Xcoo W rN] N f I / I NZ x rn x fn I / 0 �x I ii to 0 I NZ Ncri / _J tc N N / OWNER: • RAY ALLEN 190I PARKWOOD DR. OLYMPIA, WA 9850I 360-943-7722 c • 0 / / / N / / / / / � / / // / / / / / \---- / / / / ./ / e / 1 ,2 / / / / / /! �/ / / / / / / / / x / III II II 11 II 1 I I J I I I JI 1 / • .. 0 J ENGINEERS CERTIFICATE 1 HEREBY CERTIFY THAT THE ENGINEERING SHOWN ON THIS DRAINING WAS PERFORMED BY ME OR UNDER MY DIRECTION. '1 MARLEY L. Y A l airmrS 9/06/0z N 0 10 0 N DIRECTION OF SURFACE WATER FLOW MARLEY L. YOUNG CONSULTING CIWL ENGINEER P.O. BOX 1343 SHELTON, WA. 98584 (360)426— 7475. DRAWN BY: CHECKED BY: M.L. Y DATE 4- /7-00 SCALE JOB NO. 99-28 SHEET OF II = EXIS77NG WELL 0 0 UNDERSTORY — Diciduous — 6' Tall; II O 0 (13 = SHRUBS — 2 GAL/18"; o0 POWER POLE TELEPHONE PEDISTAL N GUY POLE IIa_ PROPOSED CATCH BASIN II 1_1 PROPOSED , LIGHT INDUSTRIAL DEVELOPMENT STORM DRAINAGE DESIGN MANUAL I FIG B2 STORM DRAINAGE DESIGN . MANUAL FIG B8 EROSION AND SEDIMENT CONTROL REQUIREMENT: 2o TILTER FABRIC MATERIAL BO- WIDE ROLLS USE STAPLES OR WIRE R1NMS 10 AT TACIT FABRIC 10 WIRE 2-Ar■ 140° WIRE FABnIc On EOVIVILENr RUBY 11011011 Or mint MATERIAL NL r A 12' TREIICN I' MAX Y , T' WOOD POSTS, STAIIDAnD OR BETTER 0R EQUAL Al-1E1111AM STEEL RIME POSTS i A Y. A 1•• 'a WIRE r ABnIc ur a'ouw. FILTER FABRIC MATERIAL -.27117 to°o . OOO 0.0 PnovIDE 3/4' 10 I-1/2. 'o°o WASHED ROCK 0R NATIVE 00 BACKFILL ONROMSIDES °o OF FILTER FABRIC FENCE 11000 0-0 2. A 4 WOOD POST ALT. STEEL 1E110E POSTS RAP f\ 3'O REFERENCE: KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL DATE: FEB. 1991 FILTER FABRIC FENCE DETAIL STORM DRAINAGE DESIGN MANUAL A IIl FCIIIT A S•IGULD BE RICHER TI WI POINT B PROPER PLACEMENT C° STRAW BALE BARRIER IN DRAINAGE WAY ANCHOR FIRST STAKE 1ovrAR05 PREVIOUSLY LAM BALE BALE TIES WIRE 11E 111 NICHORINC $ALES FIG B3 WEDGE LOOSE STRAIT BETWEEN BALES 2 REBARS. 51EEI_ PICKETS OR 2_' 2" STAKES 11/2_ 10 2_IN 1HE CROCND REFERENCE: KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL DATE: JULY 1988 S'1'RAIY AND MAY DALE BARRIERS STORM DRAINAGE DESIGN MANUAL FIG 134 SHEET FLOW i BALES OF STRAW STAKED DOWN PI AN SINGLE ROW OF BALES OF STRAW TO BE PLACED PRIOR TO THE START CF ROUGH GRADING 4' MIN - FILTERED RUNOFF T1=1T>°'iil=ii" .f' fib gil,<rj{FT ,Il- III=1 ILIA 1 = _ �= L-IT4III- 1-1 T 1-li 11-111=f-111-II IIII-11-I -fi -1 1-f 11-1� f l i -I j1=-11=f11_-1 i= 11t=1T-111-1191 n1�11--7I1'! r I� ITT i COMPACTED SOIL 10 PRCIE111 SLIPPIIIG SEOIMEIIT LADEN RUNOFF W M�- II Ilf�tr� yiLl-r -1ul- 1 Il-I "911 lT lll� n1�►11 1!�i'�{ f��1I11 I .T1-fll- lll�-n--�htl-tt i'-ITIim--11 1 • I„-fl =1IL- CROSS-SECTION OF A PROPERLY INSTALLED STRAW BALE REFERENCE: 'PUGET SOUND STORMWATER MANAGEMENT DRAFT DATE: JULY 1988 S'1'RAti1T AND IIAY DALE BARRIERS ' BLOCK AND GRAVEL FILTER . RUNOFF WATER WTTH SEDIMENT EMINENT RUNOFF WATER WITH SEDtuEur MASHED ROCK FILTER FABRIC ° FILTERED MAIER CDNcPETE BLOCKS GRAVEL AND WIRE MESH FILTER writ-4 DROstiP WASH D ROCK (1r MIN DEPTH) °'0•°o°a°i°i°i°e°a°i°f°'v°ol'i�e°epeao° j6 eoi°e°°o°o�nap���pvaeee�eeepep�poo°oeioeoep �9a o a e v e e o oovee°000vo a°ovv°e°eeoeovo°e° o�agoaovepege000 °v°eve°eoeaeeovvvvevveeoovvev�� S ae,0,0 ''-'-'-'-'"al 1 1 1] 1 / En ntrn VA1rA 1B•' MIN WIRE MESH WITH TILTER rABRIc ON 10P REFERENCE: KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL DATE: JULY 1988 INLET SEDIMENT PROTECTION STORM DRAINAGE DESIGN MANUAL DROP INLET WITH GRATE STAKES STAKE -� FILTER FABRIC RUNOFF WATER WITH SEDIMENT - i Lrlf�- •0 51 li I 1 i.:Il111-ll BURIED FILTER FABRIC FIG B9 FILTER FABRIC Flow REFERENCE: KING COUNTY, WASHINGTON, SURFACE WATER DESIGN MANUAL DATE: JULY 1989 FILTER FABRIC FENCE INLET FILTER STORM DRAINAGE DESIGN MANUAL = IG E ' PT ��Oof nG °° 5'0°0 c o ° o°o R • 23' HINIH!w a00 o° 1 12. I11111HUH o a°D000 a°i000a o a oon /• 10 B' CUARRY :'ALES •h PROVIDE full ul(111 or INGRESS/EGRESS AREA I t•, ri moo. �,y 6,. 0+ REFERENCE: KING COUNTY, WASHINGTON. SURFACE WATER DESIGN MANUAL DME:1988 STABILIZED CONSTRUCTION ENTRANCE EROSION AND SEDIMENT CONTROL REQUIREMENTS 1) WHERE APPLICABLE, THIS PROJECT SHALL COMPLY WITH LARGE PARCEL EROSION AND SEDIMENT CONTROL REQUIREMENTS 1 THRU 15 FOUND IN SECTION 1-2.5 OF THE WASHINGTON STATE DEPT. OF ECOLOGY STORMWATER MANAGEMENT MANUAL FOR PUGET SOUND BASIN (THE TECHNICAL MANUAL). THE SOIL ON THE PORTION OF THIS PROPERTY TO BE IMPROVED IS GRAVELLY SANDY LOAM, 0-5%. THE DEPTH OF TOPSOIL IS ONLY 2-3 INCHES. AFTER THE TOPSOIL IS REMOVED AND STOCKPILED, THE POTENTIAL FOR MUD AND DEBRIS TO BE TRACKED IS VERY MINIMAL. THE POTENTIAL FOR DIRTY WATER AND SILT TO MIGRATE OFF SITE IS ALSO VERY MINIMAL. IT IS EXPECTED THAT THE EROSION CONTROL BMPS WILL ONLY BE NECESSARY UNDER EXTREME CONDITIONS. 2) IF NECESSARY THE ACCESS SHALL BE MAINTAINED TO COMPLY WITH EROSION AND SEDIMENT CONTROL REQUIREMENTS FOUND IN THE WASHINGTON STATE DEPT. OF ECOLOGY STORMWATER MANAGEMENT MANUAL FOR PUGET SOUND BASIN (THE TECHNICAL MANUAL.) 3) WHENEVER CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED STREETS, PROVISION MUST BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT ONTO THE PAVED STREET. IF SEDIMENT IS TRANSPORTED ONTO A STREET CREATING A HAZARD, THE STREET SHALL BE CLEANED IMMEDIATELY, AND THOROUGHLY CLEANED AT THE END OF EACH DAY. THIS CONDITION IS NOT EXPECTED TO BECOME AN ISSUE. 4) SEDIMENT TRAPS, SEDIMENT BARRIERS AND OTHER BMPs INTENDED TO TRAP SEDIMENT ON SITE SHALL BE CONSTRUCTED AS NECESSARY. 5) ALL EXISTING OR NEWLY INSTALLED STORM. DRAIN INLETS THAT MAY RECEIVE SEDIMENT SHALL BE PROTECTED SO THAT CONTAMINATED STORMWATER RUNOFF SHALL NOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. SEE FIG. B8 AND B9. THERE IS NO PUBLIC STORM DRAIN SYSTEM AND ALL STORM RUNOFF IS DESIGNED TO REMAIN ON SITE. 6) CATCH BASIN INSTALLATION SHALL BE IN CONFORMANCE WITH SECTION 7-05 OF THE WSDOT STANDARD SPECIFICATIONS. 7) THE CONTRACTOR MUST USE DUE CARE WHEN SETTING THE CATCH BASINS AND THE STORM SEWER PIPES TO THE ELEVATIONS SPECIFIED. 8) REFER TO EROSION CONTROL BMPs FIGURES B2, B3, B4, B8, B9 & B16 ON THIS PAGE. FILTER FABRIC FENCE DETAIL (FIG. B2) 1. FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID USE OF JOINTS. WHEN JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE SPLICED TOGETHER ONLY AT A SUPPORT POST, WITH A MINIMUM 6-INCH OVERLAP, AND SECURELY FASTENED AT BOTH ENDS TO POST. 2. POSTS SHALL BE SPACED A MAXIMUM OF 6 FEET APART AND DRIVEN SECURELY INTO THE GROUND (MINIMUM OF 30 INCHES). 3. A TRENCH SHALL BE EXCAVATED APPROXIMATELY 8 INCHES WIDE BY 12 INCHES DEEP ALONG THE LINE OF POSTS AND UPSLOPE FROM THE BARRIER. 4. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE MESH SUPPORT FENCE SHALL BE FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY-DUTY WIRE STAPLES AT LEAST 1 INCH LONG, TIE WIRES OR HOG RINGS. THE WIRE SHALL EXTEND INTO THE TRENCH A MINIMUM OF 4 INCHES AND SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. 5. THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR WIRED TO THE FENCE, AND 20 INCHES OF THE FABRIC SHALL BE EXTENDED INTO THE TRENCH. THE FABRIC SHALL NOT EXTEND MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES. 6. WHEN EXTRA -STRENGTH FILTER FABRIC AND CLOSER POST SPACING IS USED, THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED. IN SUCH A CASE, THE FILTER FABRIC IS STAPLED OR WIRED DIRECTLY TO THE POSTS WITH ALL OTHER PROVISIONS OF ABOVE NOTES APPLYING. 7. FILTER FABRIC FENCES SHALL NOT BE REMOVED BEFORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED. 8. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY. STRAW AND HAY BALE BARRIERS (FIGS. B3-B4) 1. BALES SHALL BE PLACED IN A SINGLE ROW, LENGTHWISE, ON THE CONTOUR, WITH ENDS OF ADJACENT BALES TIGHTLY ABUTTING ONE ANOTHER. 2. ALL BALES SHALL BE EITHER WIRE -BOUND OR STRING -TIED WITH BINDINGS ORIENTED AROUND THE SIDES RATHER THAN THE TOPS AND BOTTOMS OF THE BALES. THIS WILL PREVENT RAPID DETERIORATION OF THE BINDINGS. 3. THE BARRIER SHALL BE ENTRENCHED AND BACKFILLED. A TRENCH SHALL BE EXCAVATED THE LENGTH AND WIDTH OF THE PROPOSED BARRIER TO A DEPTH OF AT LEAST 4 INCHES. AFTER THE BALES ARE STAKED AND CRACKS BETWEEN BALES CHINKED AS NECESSARY, THE EXCAVATED SOIL SHALL BE BACKFILLED AGAINST THE BARRIER. BACKFILL SOIL SHALL CONFORM TO THE GROUND LEVEL ON THE DOWNHILL SIDE AND SHALL BE BUILT UP TO 4 INCHES AGAINST THE UPHILL SIDE OF THE BARRIER. 4. EACH BALE SHALL BE ANCHORED BY AT LEAST TWO STAKES OR REBARS DRIVEN THROUGH THE BALE. THE FIRST STAKE IN EACH BALE SHALL BE DRIVEN TOWARDS THE PREVIOUSLY LAID BALE IN ORDER TO FORCE THE BALES TOGETHER. INLET SEDIMENT PROTECTION/FILTER FABRIC FENCE INLET FILTER (FIGS. B8-139) 1. PLACE CONCRETE BLOCKS LENGTHWISE ON THEIR SIDES IN A SINGLE ROW AROUND THE PERIMETER OF THE INLET, SO THAT THE OPEN ENDS FACE OUTWARD, NOT UPWARD. THE ENDS OF ADJACENT BLOCKS SHALL ABUT. THE HEIGHT OF THE BARRIER CAN BE VARIED, DEPENDING ON DESIGN NEEDS, BY SPACING COMBINATIONS OF BLOCKS THAT ARE 4 INCHES, AND 12 INCHES WIDE. THE ROW OF BLOCKS SHALL BE AT LEAST 12 INCHES BUT NO GREATER THAN 24 INCHES HIGH. 2. PLACE WIRE MESH OVER THE OUTSIDE VERTICAL FACE (OPEN END) OF THE CONCRETE BLOCKS TO PREVENT STONE FROM BEING WASHED THROUGH THE BLOCKS. USE HARDWARE CLOTH OR COMPARABLE WIRE MESH WITH %-INCH OPENINGS. 3. PILE STONE AGAINST THE WIRE MESH TO 1 HE TOP OF THE BLOCKS. USE 3/4-TO 3-INCH GRAVEL. 4. PLACE WIRE MESH OVER THE DROP INLET SO THAT THE WIRE EXTENDS A MINIMUM OF 1 FOOT BEYOND EACH SIDE OF THE INLET STRUCTURE. USE HARDWARE CLOTH OR COMPARABLE WIRE MESH WITH 1/2-INCH OPENINGS. IF MORE THAN ONE STRIP OF MESH IS NECESSARY, OVERLAP THE STRIPS. PLACE FILTER FABRIC OVER WIRE MESH. 5. PLACE 3/4-INCH GRAVEL OVER THE WIRE. MESH. THE DEPTH OF STONE SHALL BE AT LEAST 12 INCHES OVER THE ENTIRE INLET OPENING. EXTEND THE STONE BEYOND THE INLET OPENING AT LEAST 18 INCHES ON ALL SIDES. 6. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT, THE STONES MUST BE PULLED AWAY FROM THE INLET AND CLEANED OR REPLACED. STABILIZED CONSTRUCTION ENTRANCE (FIG. B16) 1. MATERIAL SHALL BE 4" TO 6" QUARRY SPALLS AND MAY BE TOP - DRESSED WITH 1" TO 3" ROCK. (STANDARD SPECIFICATIONS). 2. THE ROCK PAD SHALL BE AT LEAST 12 INCHES THICK AND 100 FEET LONG. WIDTH SHALL BE THE FULL WIDTH OF THE VEHICLE INGRESS AND EGRESS AREA. SMALLER PADS MAY BE APPROVED FOR SINGLE-FAMILY RESIDENTIAL AND SMALL COMMERCIAL SITES. 3. ADDITIONAL ROCK SHALL BE ADDED PERIODICALLY TO MAINTAIN PROPER FUNCTION OF THE PAD. 4. IF THE PAD DOES NOT ADEQUATELY REMOVE THE MUD FROM THE VEHICLE WHEELS, THE WHEELS SHALL BE HOSED OFF BEFORE THE VEHICLE ENTERS A PAVED STREET. THE WASHING SHALL BE DONE ON AN AREA COVERED WITH CRUSHED ROCK AND WASH WATER SHALL DRAIN TO A SEDIMENT RETENTION FACILITY OR THROUGH SILT FENCE. TOPOGRAPHIC SURVEY PRELIMINARY STORM WA TER CONTROL FOR RAY ALLEN & MICHAEL ALLEN IN NE 1/4, NW 1/4 SECTION 12, TOWNSHIP 20 NORTH, RANGE 4 WEST, W.M. Container completely encloses storage tank 1 The dike shall provide a volume that i. die Covered, prsster of either 10% of the total enclosed tank volume or 110% of the volume contained in the largest tank. designated area Figure I17-4.9 Covered and Bermed Containment Area IV-4-12 Outside Edge of Building Downspout from Roof and Gutter Downspout Collector Cleanout Finished Grade of rSidewalk and/or Paving 45° PVC Elbow 45° PVC Elbow 45° PVC Elbow Drains Toward Catch Basin 90° SECTION VIEW Typical Detail of Roof Downspout Collector and Cleanout Downspout Collector OWNER: RAY ALLEN 1901 PARKWOOD DR. OLYMPIA, WA 98501 360-943-772 2 FEBRUAR", 199 3" Adjustment Section Catch Basin Type 1 Downspout from Roof and Gutter Cleanout Finished Grade of Sidewalk and/or Paving 45° PVC Elbow 45° PVC Elbow 45° PVC Elbow Drains Toward Catch Basin SECTION VIEW Typical Detail of Roof Downspout Collector and Cleanout / SHED 2" Pressure Line CB Type 1 Wet Well w/ Submersible Pump CB Type 1 SC Separator 26' WELL SHOP Bi-Directional Vaned Grate Elev. 269.80 Elev. 269.42 PVC Cap Elev. 269.20 Elev. 265.48 SPILL CONTROL SEPARATOR 'B -B' ENGINEERS CERTIFICATE 1 HEREBY CERTIFY THAT THE ENGINEERING SHOWN ON THIS DRAWING WAS PERFORMED BY ME OR UNDER MY DIRECTION. IrtAA,%- Ij_/7-' 00 MARLEY L. NG DATE: OUT I.E. 268.50 4" Diam. Schedule 80 PVC Pipe to Sump Pump Spill Collector Open end of PVC Elev. 267.00 8 Diam Cast Iron Traffic Rated Cover, set to Asphalt Grade 6" Diam. PVC Pipe Casing 2" Brass Gate Valve -� 2" Diam. PVC C900-CL200 Discharge Pipe 1.0' 2" Diam Galvenized Pipe I.E. 269.20 Pump On Elev. 268.25 Elect. Cable as per Pump Manufactorers Specification IN I.E. 268.45 4" Diam Schedule 80 PVC Pipe From Spill Control Separator 4" PVC PIPE TO CARRY ROO WATER TO POND 4" PVC PIPE TO CARRY ROOF WATER TO POND MARLEY L. YOUNG CONSULTING CI v1L ENGINEER P.O. BOX 1343 SHELTON, IVA. 98584 (360)426-7475 DRAWN BY: y. CHECKED BY: M.L. Y DATE SCALE JOB NO, 99-28 SHEET Z OF 2 Top of Grate 269.00 Equals Bottom of Bio Swale Precast Driveway Drain 173/4"Lx173/4"Wx 18'/,"D Outside Measurements 2" Diam. PVC Pressure Pipe I.E. IN 268.30 CB Designed to Fill Up and Overflow into Bio Swale. Bottom Elev. 267.43 BIO SWALE CONCRETE INLET 'D - D' Pump Stop Floor Elev. + 6 inchs. WET WELL 'C -C' Solid metal Cover Traffic Rated, Elev 270.30 2" Check Valve 2" Union 12" Adjustment Section 2" 90 Bend 2" Diam Galvenized Pipe Hydromatic SKV50; Submersible Pump or equivilent with 2" Diam. Discharge and Piggybback Switch Plug; Pumping differentials up to 35 inches can be obtained when the float is tethered to the discharge pipe. For maximum pump life, adjust tether length for deepest drawdown. Catch Basin Type 1 Elev. 266.20 PROPOSED LIGHT INDUSTRIAL DEVELOPMENT RXPIR1E8 3/06/oZ 1 1