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HomeMy WebLinkAboutzS-3774 SetSEC. 16, TWP. 23 N., RGE. 5 E., W.M. Al s` .. _..................... SR 169 / .._....._.._..__�� �. �qg�y 6Lf. b PYC@2. Y -0 /� :.° 0 0 o e �� d p ���� EX. SEWER MANHOLE 04. CONNECT TO &r SEWER MANHOLE -,(5EE DEM& SHEET 30F3) CEDAR RIVER -- m _ 4t •W g> s"- 45 LF -8" PVC @ 2.22 Y. m� REMOVE EX,4.C. PAVING CE�9R ' a p, NEW SEWER MANHOLE I 190L.f-2"P.Y.C. FORCE MAW /N p 4 STEEL G4S/N6 , HUNG W/TH ,,;r7-• METAL HANGERS 1-0 o°... ._p , _moo' " O•— _=•O ..O4=�• ,..p a0�.. °,._ o,L OW _ 1 \ f 0. 333L.f. -Z PVC r Cb v fORCE MAIN —0— � ,—o L/fT STATION/WETWELL °"` _._ 0— (1-0 96-1- �o ""O g,'�>i fBLF.- �t"D./. SIDESEWER 0p(0'�- 1-00-- O"- 1 (CONNECT TO 6LOG. SEWER STUB) PROPOSED PURL/C �8o p, . --:-10. °a.._ RESrAWNS .. o,., 0 9 _ '= _ _ o u— C�' CLEAN-OUT p"� �'p " o----j,w fl- — Q p,. m _ 1-0 1-0 01- 0 0'- B,. r_iN� . ate,.._ - o,w 0 50 100 150 Revisions: Auej. 13, I`I48zt W Jobno. 50006 Dare: AUG 1992 ♦ Approvedby: KJS Drawn by: VS She: 1" = 50' Project m nae: Cedar River Greenway Interpretive Park Renton, WA W 0 Sheet tide: MASTER FORCE MAIN z PLAN OSheetno. OF 3 SS -1 PLATE I PLAN -PROFILE O. P. R. 6 R. E. STANDARD DIET2OEN CORPORATION PRINTED IN U.S.A. vv-KEE Lam......._. 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P. R. 6 R. E. STANDARD DIET2OEN CORPORATION PRINTED IN U.S.A. vv-KEE Lam......._. V JOB 50006 RUG. t3.1993 SHEET 2 NOTES General Duplex Grinder Pump With Accessway Description The contractor shall furnish and/or install one factory -built grinder pump consisting of two grinder pump core units and all necessary parts and equipment. This Shall be installed in a factory -built -'-- gallon fiberglass reinforced polyester tank with integral watertight ac- cessway as described in the following specifications. Operating The pump(s) shall be of a semi -positive displacement type and be Conditions capable of delivering 11 gpm against a rated total dynamic head of 92- feet (40 ) At zero head the output shall be 15 gpm minimum. Tank Integral Accessway Core Unit Pump Grinder Electric Motor Mechanical Seal Check Valve Anti -Siphon Valve psis . The pump(s) shall be capable of intermittent (3 minutes minimum) operation at any heads up to 150% of normal rated dynamic head. The electrical rating of each pump shall be 8 amperes, 1 phase, 240 volt, 60 Hertz. Duplex - Gallon The tank shall be custom molded of fiberglass reinforced polyester resin and shall have a nominal wall thickness of 1/4" and a net capac- ity Of gallons. The tank will be fitted with an integral fiberglass baffle dividing it into two compartments which interconnect just below the elevation of the inlet fitting inverts. The tank shall be furnished with one PVC inlet flange to accept 4" nominal diameter PVC drain - waste -vent (DWV) pipe using the solvent -weld system. This socket fitting shall be securely fastened to the tank and shall be leak tight. The upper surface of the Series 6 tank shall be stiffened by use of inte- grally molded reinforcing ribs and shall be capable of supporting the combined weight of the pump cores and a workman. Duplex The accessway shall be an integral extension of the tank. It shall have an access opening at the top to accept a lockable cover. The accessway shall include the following factory supplied items: Grinder pump discharge extension(s) terminating in watertight bulkhead fitting(s) with external 1 im4' male pipe thread. Internal wiring shall terminate in sealed junction boxes integral with accessway and suit- able for outdoor use. The grinder pump shall have cartridge type easily removable core as- semblies containing pump, motor, grinder, controls, check valve, anti - syphon valve and wiring. The watertight integrity of the core unit, including wiring and access cover, shall be established by 100% factory test at a-vdirimum of 5 PSig• The pump shall be a custom designed, integral, vertical rotor, motor driven, solids handling pump of the progressing cavity type with me- chanical seal. The rotor shall be through -hardened, highly polished, precipitation hardened stainless steel. The stator Shall be of a specifi- cally compounded ethylene propylene synthetic elastomer. The mate. rial shall be suitable for domestic wastewater service. Its physical properties shall include high tear and abrasion resistance, grease re- sistance, water and detergent resistance, temperature stability, good aging properties, and outstanding wear resistance. The grinder shall be positioned immediately below the pumping ele- ments and shall be direct -driven by a single, one-piece motor shaft. The grinder impeller assembly shall be securely fastened to the pump motor shaft. The grinder will be of the rotating type with a stationary hardened and ground chrome steel shredding ring spaced in accurate close annular alignment to the driven impeller assembly, which shall carry two hardened type 400 series stainless steel cutter bars. This assembly shall operate without objectionable noise or vibration over the entire range of recommended operating pressures. The grinder shall be constructed so as to eliminate clogging and jam- ming under all normal operating Conditions, including starting. Suffi- cient vortex action shall be created to scour the tank free of deposits or sludge banks which would impair the operation of the pump. These requirements shall beaccomplished by the following actions in con- junction with the pump: 1) The grinder shall be positioned is such a way that solids are fed in an up -flow direction. 2) The inlet shroud opening shall have a diameter no less than 5 inches. 3) At maximum flow, the average inlet velocity should not exceed 0.2 feet per second. 4) The cutter bars shall extend 0.200 to 0.250 inch above the impel- ler disc. _ 5) The impeller disc shall rotate at a nominal speed of 1725 rpm. The grinder shall be capable of reducing all Components in normal do- mestic sewage, including a reasonable amount of "foreign objects", such as paper, wood, plastic, glass, rubber and the like, to finely - divided particles which will pass freely through the passages of the pump and the 11/4- diameter discharge pipe. The motor shall be a 11hp, 1725 rpm, capacitor start, ball bearing, squirrel cage induction type with a low starting etgent not to exceed 36 amperes and high starting torque of 8.4 foot pounds. Inherent protection against running overloads or locked rotor condi. tions for the pump motor shall be provided by the use of an automatic - reset, integral thermal overload protector incorporated into the motor. This motor protector combination shall have been specifically investi- gated and listed by Underwriters Laboratories, Inc., for the applica- tion. The core shall be provided with a mechanical shaft seal to preclude leakage between the motor and pump. The seal shall have a station- ary ceramic seat and carbon rotating sealing surface with face preci- sion lapped and held in position by a stainless steel spring. The pump shall be equipped with a factory -installed, gravity -operated, flapper -type integral check valve built into the disebArge pipe. This valve will provide afull-ported passageway when open, and shall in- troduce a friction loss of less than 6 inches of water at maximum rated flow. A non-metallic hinge shall be run integral part of the flapper assembly, providing maximum degrees of freedom for assured seating even at a very low back pressure. The valve body shall. be made of PVC. The pump shall be constructed with a positively -primed flooded sue. tion configuration. As added assurance that the pump cannot lose prime even under negative pressure conditions in the discharge piping system, the pump shall be equipped with an integral anti -siphoning, air relief valve in the discharge piping just below the main check valve. This valve will automatically close when the pump is running and open when the pump is off. SEC. 16, TWP. 23 N., RGE. 5 E., W.M. 0 Controls Necessary controls shall be integral with the grinder pump and shall 11/01/91 be located in the top housing of the core unit inside a waterproof 1/24 access cover. The cover will be attached with stainless steel, tamper- C 'D proof fasteners. JISSUEJ Non -fouling wastewater level detection for controlling pump operation environmentione shall be accomplished by monitoring the pressure changes in an inte- ASSEMBLY, GRINDER PUMP MODEL 216 - 142 gral, air -bell level sensor connected through air -tight tubingAo a pres- 0,906 P01 sure switch. The level detection device shall have no.moving parts in direct contact with the wastewater. 4. Overflow sensing will be accomplished by a separate air -bell sensor of OWER L40- _ _`� -__- P2•ov4c/Ox the same type. Controls shall be specified with Control Panet model model R. 160-4 (visual and audible alarm). 7. Each level control shall have its own built-in fail safe design which o:-° will prevent the entrance of moisture into the controls in case of switch 45° FITTING. diaphragm failure. 9. To assure reliable operation of pressure sensitive switches, each core p shall be equipped with a quick disconnect breather assembly, complete q - with check valve to prevent accidental entry of water into the motor compartment in the event of accessway flooding. L2 LI G An overflow indicator lamp assembly requiring 120 volts and suitable LI G for remote installation in a standard device box will be furnished. x4ten I This indicator will be mounted on a decorative wall plate 2 3/4" x 41/2" x4T[R and marked "Grinder Pump Monitor". I The grinder pump will be furnished with two ten foot (10') lengths of type OF cable, pre -wired and connected with weatherproof materials. a The power supply cable shall be 12-2 W.GRD., designed for 1phase, i1MCP RcoaT 240 volt, 60 Hertz power supply, and meet UL requirements. The signal cable to the overflow indicator lamp shall be 14-2 W.GRD., designed for 1 phase, 120 volts, 60 Hertz power supply, and meet UL colt requirements. Redundant Each grinder pump shall optionally include in its package one sepa- Check Valve rate check valve for installation in the discharge line between the to maximum protection ( Recommended grinder pump and the sewer main ensure against backflow in the event of sewer line break. option) The valve shall be 1 1/4" and of the gravity -operated flapper type. The PRESSURE check valve will provide a full -ported passageway when open and shall awrtcx introduce a friction loss of less than 6 inches of water at maximum swlT Cx rated flow. A non-metallic hinge shall be an integral part of the flapper assembly providing maximum degrees of freedom for assured seating at a very low back pressure. RCIRY The valve body shall be made pf PVC compatible with 1 1/4" PVC pipe In", solvent -weld system. Wiring It shall be the responsibility of the electrical contractor to furnish and M install, in compliance with appropriate national and local codes, serv- l CONTACTS ice entrance equipment and/or branch circuit protection and all wiring CONTACTS to the grinder pump leads. Corrosion All materials exposed to wastewater shall have inherent corrosion pro - i.e., iron, fiberglass, stainless steel, PVC. Any exterior Protection tection; cast steel surfaces are to suitably protected against corrosion. Serviceability The grinder pump core unit shall have two lifting eyes provided in the top housing which can be used to facilitate easy removal of the core unit from the tank when necessary. Safety The grinder pump shall be free from electrical and fire hazards as re- As of compliance with quired in a residential environment. evidence this requirement, the completely assembled and wired grinder pump in its tank shall be listed by Underwriters Laboratories, Inc. The grinder pump shall meet accepted standards for plumbing equip- ment for use in or near residences, shall be free from noise, odor or health hazards, and shall have been tested by an independent labora- tory to certify its capability to perform as specified in either individual or low pressure sewer system applications. As evidence of compliancq with this requirement, the grinder pump shall bear the National Sani- tation Foundation seal. Manufacturer The equipment specified shall be the product of a company experi- of pumps for specific use enced in the design and manufacture grinder in low pressure sewage systems. The company shall submit detailed installation and user instructions for its product; submit evidence of an established service support program including complete parts Bud service manuals; and be responsible for maintaining a continuing in. ventory of grinder pump replacement parts. Limited The manufacturer shall offer a limited warranty which guarantees its workmanship ' material and facto P be free from defects m factory Warranty product to for a period of two years from date of installation or twenty-seven (27) months from date of shipment, whichever occurs fust, provided the product is properly installed, serviced, and operated under normal conditions and according to the manufacturer's instructions. Repair or parts replacement required as a result of such defect will be made free of charge during this period upon return of the defective parts or equipment to the manufacturer or its nearest authorized service center. DISCONNECT PANEL �__--____-______-___- I I I I I I I I ISC� 11541 I OA IDA MODEL 216 - 142 FOR OUTDOOR INSTALLATION N 'ali LIN MT r 6.00 in. aosEo CELL $PMC 1/r STAINLESS STEEL mus MID ASSEa9LE (A PLACES) .60 1 n. - • SI I'M AeNES11C FIELe APPLr JOIN102.20 in. <FIJo,ELD 134.20 In. 93.04 in. FIELD JOINT DETAIL 37.50 in. 32.00 In. 41.16 in. 60.00 in. 66.00 In. AVTE: A COAT W ANCIMR OETIEEER 9450 - 102M LOS. (63 - 69 !9 REOWaEO r0 PREvmr rAw FROM r oAnA'6. APs SPA 11/01/91 A 1/24 DR BY C 'D I DATE JISSUEJ SCALE environmentione CORPORATION ASSEMBLY, GRINDER PUMP MODEL 216 - 142 PA 0,906 P01 MODEL GP 216 SERIES INSTALLATION ..0 • r a, A. Existing grade. 2.0 FT. B. If open cut method is used, contractor is responsible for additional material. C. Backfill with excavated material unless selected material is ordered by engineer. D. Specific depth as defined by engineer for installation site (freeze protection, etc... E. Backfill with select material in lifts as shown to 90% standard proctor density. F. PVC sewer pipe. ( 2" PVC, SCH = 40 ) G. Undisturbed earth. H. Required side elope if sheeting or trenching cage is not used (typical). NOTE: All trenching shall meet OSHA requirements. - TYPICAL LOW PRESSURE SEWER TRENCH DETAIL - N.7.5. FITTING BEARING AREA REO'D 0-45• 2.0 SO. FT. BEND 45-90• b BEND p' F. e2301�7_VA 3. BRASS COUPLING -copper to IP.T. I TIx aLRxOMO 4. ET 00Y. OUTLETa OWER L40- _ _`� -__- P2•ov4c/Ox L.IWL w.T 6. R. w O. 7. 109 o:-° h 45° FITTING. 9. FIELD WIRING p 10. q L2 LI G 9 W I I L2 LI G 6 w x4ten I I I x4T[R I I I H I a I i1MCP RcoaT I I ..0 • r a, A. Existing grade. 2.0 FT. B. If open cut method is used, contractor is responsible for additional material. C. Backfill with excavated material unless selected material is ordered by engineer. D. Specific depth as defined by engineer for installation site (freeze protection, etc... E. Backfill with select material in lifts as shown to 90% standard proctor density. F. PVC sewer pipe. ( 2" PVC, SCH = 40 ) G. Undisturbed earth. H. Required side elope if sheeting or trenching cage is not used (typical). NOTE: All trenching shall meet OSHA requirements. - TYPICAL LOW PRESSURE SEWER TRENCH DETAIL - N.7.5. FITTING BEARING AREA REO'D 0-45• 2.0 SO. FT. BEND 45-90• 3.0 SO. FT. BEND STATION ACCESSORIES 1. LOW/HIGH WATER ALARM SENSOR 2. ALARM LIGHT . _3. ALARM HORN 4. RUNNING TIME METERS 1. ENVIRONMENT I ONE GRINDER PUMP TANK & ACCESSWAY - Fiberglass Reinforced Polyester (FRP). 2. ACCESSWAY COVER -FRP 3. LIFTING EYES -for lining complete grinder pump. Do not use when ballast is attached. 4. ELECTRICAL JUNCTION BOX -leads from grinder pump terminate here. Electrician connects leads from disconnect box (item 6) thru 2 watertight connectore provided (for OF cable). 5. GRINDER PUMP POWER erD ALARM LEADS - circuit to be run in accordance with applicable electrical codes. G. RAINPROOF(Nemn 3E,)ENCLOSURE- equipped with circuitbreakers ordisconnect switch, located adjacentto GP. 7. TANK INLET - 4" PVC Socket for solvent cementing DW V pipe: (typ 2 places) S. TANK VENT 9. GRAVITY SERVICE LINE -4"DWV 10. DISCHARGE OUTLET - 2' Male pipe thread. (to be adapted to 2") 11. GRINDER PUMP DISCHARGE LINE - 2" nominal pipe size. 12. CONCRETE ANCHOR - GP 216 S4 with 4' accessway requires approximatelylOpWlbs (68 cu. ft.) to prevent floatation. (add 300 lbs per feet of accessway, over 4'). Sleeve over inlet is required if anchor is poured to a level above inlet. 13. BEDDING MATERIAL - G" Minimum, rounded aggregate (pea gravel). 14. FINISHED GRADE,- Grade line to be G" below top of accessway and slope away from accessway opening. PIPE, /NC. SECTION VIEW K_� CONNECTION TO EXISTING METRO MANHOLE BACKFILL PER ENGINEERS SPECIFICATIONS THRUST BLOCK DETAILS N.T.S. AREA TYPICAL WARNING LIGHT MANHOLE - typical 4'-0" 0 prcoat. 2. IwpvLl[o !TN UITI e2301�7_VA 3. BRASS COUPLING -copper to IP.T. I TIx aLRxOMO 4. ET 00Y. OUTLETa OWER L40- _ _`� -__- P2•ov4c/Ox L.IWL w.T 6. R. w O. 7. VALVE -1"blow oft. w/0x0 S. 45° FITTING. 9. FIELD WIRING PLAN VIEW 10. VALVE -shutoff. L2 LI G 9 W I I L2 LI G 6 w x4ten I I I x4T[R I I I TIN@ RL4Y I i1MCP RcoaT I I I ' colt 4LxR" I PRE66WrC I PRESSURE pRL55VRE awrtcx rRLssvRL swlT Cx swrtcx wncx RCIRY I In", M. I M l CONTACTS I I CONTACTS UNIT I l UNIT 2 1-- -GP J -GP MODEL GP 214 WIRING DIAGRAM 240 V - PIPE, /NC. SECTION VIEW K_� CONNECTION TO EXISTING METRO MANHOLE BACKFILL PER ENGINEERS SPECIFICATIONS THRUST BLOCK DETAILS N.T.S. AREA 11. NIPPLE - 2" minimum clearance (x). 12. UNION. 13. ADAPTER -PVC to brass. 14. PVC PRESSURE SEWER LINE -2"PVC. 16. SERVICE CLAMP OR TEE - with threaded branch. 16. SUMP BASIN. 17. BEDDING MATERIAL -12" minimum, Crushed stone 18. BURIAL - protect from freezing. AIR RELEASE VALVE u.i.s. V �I L` w C� �7 Incorporated P.S. Landscape Architecoue Urban Design Planning 23103rd Ave. N.E. Bellevue, WA 98004 206.454.5723 Revisions: i ACU(. I3 1493 Date: AUG. 1992 Approved by: KJS Drawn by: Scale. - AS NOTED _ Project name: CEDAR RIVER GREENWAY_ _ INTERPRETIVE PARK Sheet title: GENERAL NOTES 11 DETAILS Sheet no. 3OF3 SS -3 1. MANHOLE - typical 4'-0" 0 prcoat. 2. AIR RELEASE - with copper vent. e2301�7_VA 3. BRASS COUPLING -copper to IP.T. 4. VALVE -12"shut otEL 6. COUPLING- quick disconnect. 6. HOSE -back flushing. 7. VALVE -1"blow oft. S. 45° FITTING. 9. 1" I.P., 6" long. PLAN VIEW 10. VALVE -shutoff. 11. NIPPLE - 2" minimum clearance (x). 12. UNION. 13. ADAPTER -PVC to brass. 14. PVC PRESSURE SEWER LINE -2"PVC. 16. SERVICE CLAMP OR TEE - with threaded branch. 16. SUMP BASIN. 17. BEDDING MATERIAL -12" minimum, Crushed stone 18. BURIAL - protect from freezing. AIR RELEASE VALVE u.i.s. V �I L` w C� �7 Incorporated P.S. Landscape Architecoue Urban Design Planning 23103rd Ave. N.E. Bellevue, WA 98004 206.454.5723 Revisions: i ACU(. I3 1493 Date: AUG. 1992 Approved by: KJS Drawn by: Scale. - AS NOTED _ Project name: CEDAR RIVER GREENWAY_ _ INTERPRETIVE PARK Sheet title: GENERAL NOTES 11 DETAILS Sheet no. 3OF3 SS -3 W Sm o "N' s9 Ain C2 S4Y. FR1 nP � E. - . TrW 54.02 CB C�6 €56x6 l" '�' uT 0l --------------------- ----------- Ar" __Ar. .__...., _e N 10' TRAIL COW. Eus:: nr WA17r. A'l TWE: iit SSR 91 FILTER - FABRIC FENCE FENCE E ti W1.r;' m m tiiPtlk_r .r rti€PT COTWO. ....---- SAM 3A? 'icy-_>F:�e ��""`'---�. --�•_ ASPHALT ~`"" r„+�`^•.� se COfWGS. ALDE4 EXIIE OF WATER A'. TWE OF SUR EP]t CF WA17t S NO =A'i A.T 9?dE OF SJ"?oEY I11rrr///9g8pW8eolNENTA710N_owrRDL MO) tpT68 (1) Approval of this erosion/sedimentation control (ESC) plan does not constitute an approval of permanent road or drainage design (e.g. size and location R,¢,Ergpr¢spipes, r trictors, channels, retention facilities, utilities, etc.). AT TIME Cr SJR'ET"-' (2) The implementation of these ESC plans and the construction, maintenance, replacement and upgrading of these ESC facilities is the responsibility of the contractor until all construction is approved. (3) The boundaries of the clearing limits shown on this plan shall be clearly flagged in the field prior to construction. During the construction period, no disturbance beyond the flagged clearing limits shall be permitted. The flagging shall be maintained by the contractor for the duration of construction. (4) The ESC facilities shown on this plan must be constructed in conjunction with all clearing and grading, activities, and in such a manner as to insure that sediment laden water dabs not enter the drainage system or violate applicable water standards. (KCC 9.04.020 AA, KCRS 7.09 D) (5) The ESC facilities shown on this plan are the minimum requirements for anticipated site conditions. During the construction period, these ESC facilities shall be upgraded (e.g. additional sumps, relocation of ditches and silt fences, etc.) as needed for unexpected storm events (KCC 9.04.090 82?. (6) The ESC facilities shall be inspected daily by the contractor and maintained as necessary to ensure their continued functioning (KC C 9.04.090 B2). (7) Any area stripped of vegetation, including roadway embankments, where no further work is anticipated for a period of 15 days, shall be immediately stabilized with the approved ESC methods (e.g. seeding, mulching, netting, erosion blankets, etc.)(KCRS 7.09D). 8) Any area needing ESC measure, not requiring immediate attention, shall be addressed within fifteen (15) days. 9 The ESC facilities on inactive sites shall be inspected and maintained a minimum of once a month or within the 48 hours following a storm event. 10) At no time shall more than one foot of sediment be allowed to accumulate within a catch basin. All catch basins and conveyance lines shall be cleaned prior to paving. The cleaning operation shall not flush sediment laden water into the downstream system. (11) Stabilized construction entrances and wash pads shall be installed at the beginning of construction and maintained for the duration of the project. Additional measure may be required to insure that all paved areas are kept clean for the duration of the project. (RCW 46.61.655)” (12) During the time period of November 1 through March 31, all project disturbed areas greater than 5,000 square feet that are to be left unworked for more than 12 hours shall be covered by one of the following cover measures: mulch, sodding or plastic covering. (13) Any permanent retention/detention facility used as a temporary settling basin shall be modified with the necessary erosion control measures and shall provide adequate storage capacity. If the permanent facility is to function ultimately as an infiltration or dispersion system, the facility shall not be used as a temporary settling basin. No underground detention tanks or vaults shall be used as a temporary settling basin. (14) Where seeding for temporary erosion control is required, fast germinating grasses shall be applied at an appropriate rate (e.g. annual or perennial rye applied at approximately 80 pounds per acre). (15) Where straw mulch for temporary erosion control is required, it shall be applied at a minimum thickness of two inches. FLTBt FENCE a) The 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—in. overlap, and both ends securely fastened to the post. b) The filter fabric fence shall be installed to follow the contours (where feasible). The fence posts shall be spaced a min. of 6 ft. apart and driven securely into the ground (minimum of 30 in.). c A trench shall be excavated, roughly 8 in. wide and 12 in. deep, upslope and adjacent to the wood post to allow the filter fabric to be buried. d3 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 in. long, tie wires or hog rings. The wire shall extend into the trench a min, of 4 in. and shall not extend more than 36 in. above the original ground surface" e) The Standard Strength filter fabric shall be stapled or wired to the fence, and 20 in. of the fabric shall be extended into the trench. The fabric shall not extend more than 36 in. above the original ground surface. Filter fabric shall not be stapled to existing trees. f) When extra—strength filter fabric and closer post spacing are 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 the Standard Note e. applying. - The trench shall be backfilled with 3/4—In. min. diameter washed gravel. h3 Filter fabric fences shall be removed when they have served their useful purpose, but not before the upslope area has been permanently stabilized. i) Filter fences shall be inspected immediately after each rainfall and at least daily during prolonged rainfall. Any required repairs shall be made immediately. Hg90N OON IFI"" OONSTRlO M BECARNM (1) Arrange and attend pre—construction meeting with. City of Renton. (2) Contractors surveyor to establish and stake out control points for work. Stake road and path center lines, building locations, and clearing limits for approval prior to clearing and grading. 3Erect filter fabric fence and orange tree protection fencing. 4 Construct stabilized construction entrance. 5Clear and grub area, protect trees noted to remain. 6 Remove existing surface features and miscellaneous items as noted. 7 Rough grade parking and roadways, and grade site per plan. 8 Construct site improvements. 9 Final grade for parking areas, pave per plan. 10) Hydroseed remaining disturbed areas. 11 Returnsiltation control areas to original ground conditions. 12 Remove remaining temporary erosion/sedimentation control only after site has been stabilized and City of Renton has approved the removal. SURVEY: Underground utilities and improvements shown are based upon the survey by Inca Engineers. Inc. Dated 8/27/91, and e been shown on this drawing utilities and improvements have record drawings. No warranty or guarantee of accuracy or completeness is either implied or expressed. Existing underground u p 9 for the purpose of assisting the contractor in locating said utilities and improvements in the field. The contractor shall be responsible for checking with appropriate agencies that may have underground utilities and improvements within the project limits and for checking locations in the field. The contractor shall be solely responsible for any and all damage to underground utilities and improvements resulting from his operation. 0 W5 DIRT ANO CRAY}]. _- FILTER FABRIC FENCE LOCATE TO MINIMIZE IMPACT TO VEGETATION 1 C2 LS 2--G & kL+PLS 5 CorToNAO.O.S \. KVLES 20 0 10 20 40 "Adhk CO ti t .t3°• uAxE �^� 0' 1 � I1 . " { 3 ; �'•�., p 6 n.c+�>. ,�, corp . SIJ SFr �A BURY BOTTOM OF FILTER II MATERIAL IN 8" BY 12" II io II TRENCH II N --it------ 6'MAX.--- —fi-- I II U 2" BY 47 WOOD POSTS, STANDARD OR BETTER OR EQUAL ALTERNATE: STEEL FENCE POSTS NOT TO SCALE n f BY / BY 14 GA. WIRE ABF OR EQUIV. — FILTER Fi MATERIAL PROVIDE 3/4 - 1.5" p`q WASHED GRAVEL BACKFILLc IN TRENCH AND ON BOTH SIDES :2* OF FILTER FENCE FABRIC ON THE SURFACE Er 2" BY 4 WOOD POST ALT: STEEL FENCE POSTS 12' DEEP S r R D E S I G N C 0 M P A N Y 911 Western Avenue Suite 302 Seattle, WA 98104 Phone 206.223.0326 f PLAN REVIEW DATE STORM WATER IITILRY DATE TRANSPORTATION DATE CITY OF RENTON DEPARTMENT OF PSJHLTC WORKS CEDAR RIVER GREENWAYS WTERPERATWE PARK EROSION CONTROL PLAN DESIGNED: TVS DAME: 8/14/92 FILE NAME DRAWN: JL CHEc1®: MRS St 1=20 ran OM rAoa BY APM DAME APPRONED: svc� yr wdm woo r- SHEET: CZ OR 2 i C.0 _ 1 i3 IV iAAFiES TYVN 8"(,' "+WALL I S° WOOD PGS'S ., ++• CGNO Tt•.J CGirONAWD ~ \-. 2 MAPLE tAU5I':Eksi /nIXili W Y.b1S RS7Y TLr ::Oti.Ci. I J `\ TWO4 12' PIES 7C FlRl +��5" VA=1E FILTER n f BY / BY 14 GA. WIRE ABF OR EQUIV. — FILTER Fi MATERIAL PROVIDE 3/4 - 1.5" p`q WASHED GRAVEL BACKFILLc IN TRENCH AND ON BOTH SIDES :2* OF FILTER FENCE FABRIC ON THE SURFACE Er 2" BY 4 WOOD POST ALT: STEEL FENCE POSTS 12' DEEP S r R D E S I G N C 0 M P A N Y 911 Western Avenue Suite 302 Seattle, WA 98104 Phone 206.223.0326 f PLAN REVIEW DATE STORM WATER IITILRY DATE TRANSPORTATION DATE CITY OF RENTON DEPARTMENT OF PSJHLTC WORKS CEDAR RIVER GREENWAYS WTERPERATWE PARK EROSION CONTROL PLAN DESIGNED: TVS DAME: 8/14/92 FILE NAME DRAWN: JL CHEc1®: MRS St 1=20 ran OM rAoa BY APM DAME APPRONED: svc� yr wdm woo r- SHEET: CZ OR 2 i C.0 _ 1 i3