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Home My WebLink AboutMarina Wastewater Pump-Out Facilities - BLD Engineering / Geo-tech Reports - 10/30/1991 ALDERBROOK INN UNION, WASHINGTON ENGINEERING REPORT MARINA WASTEWATER PUMP-OUT FACILITIES Prepared for ALDERBROOK INN East 7090, Highway 106 Union, Washington 98592 (206) 898-2200 Prepared by PARAMETRIC, INC. P.O. Box 460 Sumner, WA 98390 (206) 863-5128 21-2070-01 October 1991 CERTIFICATE OF ENGINEER Alderbrook Inn Union, Washington Engineering Report Marina Wastewater Pump-Out Facilities October 1991 The technical material and data contained in this report were prepared under the supervision and direction of the undersigned, who's seal as professional engineers licensed to practice as such is affixed below. Nr. G14 - ,Ilk �. 14720 p 4ti Steven C. Gilbert Project Manager Parametrix, Inc. TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description of Facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 WASTEWATER PUMP-OUT FACHMES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 IMPLEMENTATION ASPECTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Cost Estimate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Project Financing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 APPENDIX Engineering Report 21-207"1 Marino Waatewaur Peoap-Out Fad idea i October 1991 LIST OF TABLES 1. Estimated Cost-Wastewater Pump-Out Facilities . . . . . . . . . . . . . . . . . . . . . . 5 LIST OF FIGURES 1. Site Plan — Alderbrook Inn Marina . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Conceptual Design — Wastewater Pump-Out Facilities . . . . . . . . . . . . . . . . . . 4 F-8ine-t-8 Report 21-2070-01 Marina Wastewater Pmnp-Out Facilida ii October 1991 INTRODUCTION Background In April, 1991 the Washington State Department of Ecology issued a National Pollutant Discharge Elimination System (NPDES) Waste Discharge Permit to the Alderbrook Inn. This permit authorized Alderbrook Inn to operate their wastewater treatment facility and discharge treated wastewater into Hood Canal. This permit, number WA-003775-3, also identified certain Special and General Conditions which must be met by Alderbrook Inn. In this permit, Condition S 10 - Schedule of Compliance states the following: The Permittee shall achieve compliance with the effluent limitations specified for discharge in accordance with the following schedule: 3. By October 10, 1991 (6 months from the effective date of this permit) the permittee shall submit an Engineering Report for pump-out facilities at the Marina. In order to comply with this condition, in August 1991 Alderbrook Inn retained Parametrix, Inc. to prepare the required Engineering Report. Description of Facilities Alderbrook Inn Resort is located on the southern area of Hood Canal near the Community of Union. The resort provides overnight accommodations for guests in a hotel, motel and individual cottages. Also, the resort operates a restaurant and conference center which provides numerous meeting rooms. The resort is located directly adjacent to Hood Canal and provides water access to and from the resort using a marina consisting of a 1,000-foot-long floating walkway and vessel moorage dock. The water depth at the end of this walkway is sufficient for large deep draft vessels. No wastewater pump-out facilities for the vessel sewage holding tanks are, however, currently provided. One alternative for guests to access the resort is from their boats via Hood Canal. Also, guests can launch their boats near the resort so they can use the boats during their stay. In either case, these boaters are encouraged to tie their boats along the floating walkway and use the hotel, motel or cottages for their evening accommodations. Some guests may, however, reside on their boats when they are tied to the dock. This moorage is, however, only temporary. The location of the Alderbrook Inn marina, including the floating walkway and vessel moorage dock, is shown in Figure 1. Engineering Report 21-207"1 Marino Wastewater Aanp-Out FaciUdes 1 October 1991 I / STATF. HIGHW AY 21 z a a "A,/0 MOB Y o N gj 1 CONFERENCE m ❑ CENTER W a ALDERBROOK I COTTAGES RESTAURANT � �� \ 'C FLOATING WALKWAY AND VESSEL MOORAGE DOCK EXISTING LOW TIDE LINE HOOD CANAL --� FLOATING WALKWAY VESSEL MOORAGE DOCK FILE: 20700102 JOB: 21-2070-01 N Figure 1: Site Plan 0 100 200 Alderbrook Inn Marina SCALE IN FEET WASTEWATER PUMP-OUT FACILITIES Description To provide for wastewater collection from the sewage holding tanks aboard any vessels using the Alderbrook Inn marina, a wastewater pump-out station is necessary. This station would be installed in a location readily accessible to all boaters. This pump-out facility would consist of a dock mounted package type marine pump-out station. It would contain a suction hose and pump to transfer the wastewater from the boat holding tank to the wastewater collection system serving the Alderbrook Inn. It would then receive treatment at the existing Alderbrook Inn treatment plant and discharge into Hood Canal via an existing outfall. Individual boaters would move their boats to the pump-out station as necessary for service. They would pump-out their holding tanks and then return to their temporary moorage space. Boaters in the general area could also use this facility to pump-out their holding tanks as necessary. Design The conceptual design for an Alderbrook Inn Marina Wastewater Pump-Out Station is shown in Figure 2. This facility would use a marine pump-out station as manufactured by Pump-A- Head San Diego, California or equal. A copy of this manufacturer's information on their pump- out station is also in the Appendix. This proposed station would pump wastewater from the end of the Alderbrook Inn dock to an existing wastewater pump station manhole located on shore next to the Inn's main building. The holding tank wastewater would then be combined with Inn wastewater and be pumped directly to the treatment plant. The proposed station would provide adequate holding tank pump facilities for the Alderbrook Inn marina and any other transient boats in the area. Engineering Report 21-2070-01 Marina Wastewater Pump-Out Facilities 3 October 1991 EXISTING SEWAGE PUMP STATION N EXISTING B' WOODEN 72'0 MANHOLE FLOATING WALKWAY AND j VESSEL MOORAGE DOCK EXISTING PUMP STATION VALVE VAULT STATE HIGHWAY 21 EXISTING 18' PIPEWAY CORE DRILL MANHOLE FOR 3C — — — — — — EXISTING 'OWER VAULT 3"0 PVC PIPE AND GROUT ?U O�,L Z M o 3'0 PVC PIPELINE or m m ❑ 3'0 PVC PIPELINE FIELD LOCATE TO AVOID sZ - POWER VAULT, TREE ROOTS ❑AL ERIBRO K I 3' CLEANOUT INSTALL LANDSCAPING 3' MINIMUM DEPTH COTTAGES a MAXIMUM SPACING 200' - NOTE: INSTALL IN_ PLAN DEPTH SAND•TRENCH MINIMUM _ NO SCALE 3' MINIMUM COVER J USETO D"0 ' ELBOWS EDGE EDGE OF BEACH \ 3' CLEANOUT 3' FLEXIBLE HOSE WITH WALKWAY TO EXISTING THREADED BRASS FITTINGS AND STAINLESS STEEL PUMPSTATiON MANHOLE INSTALL 3"0 PVC PIPELINE INTO�- EXISTING SEWAG�PUMP CLAMPS EACH SIDE, 24" LONG EXISTING PIPEWAY LOCATED IN _ _ STATT6N ANO VALVE VAULT FLOATING WALKWAY, SEE DETAILe CONNECT 3'0 PVC PIPELINE INTO EXISTING PUMP STATION MANHOLE SEE DETAILe NOTE: I I CONCRETE WALL FLEXIBLE HOSE TO BE I I INSTALL 3' FLEXIBLE HOSE LOOPED UP AND NOT SIMILAR TO DETAIL 2 TO HANG DOWN. MAXIMUM AT END OF DOCK SECTION SPACING 200' OR AT AND 3' BALL VALVE NO SCALE FLEXIBLE JOINTS IN WALKWAY STRUCTURE SHORE CONNECTION - -- --- - EXISTING LOW TiDE LINE DOCK PIPING DETAIL 3 - DETAIL 2 3/16' - 1'-0" EXISTING FLOATING WALKWAY NO SCALE AND VESSEL ANCHORAGE DOCK - SPECIFICATIONS Pump-Out Station INSTALL SEWA PUMPOUT STATION The pump out station s:all be Model 175 Pump-A-Head marine pump out station, manufactured SEE DETAIL ej by KECO, Inc., San Diego. California or approved equal. ^a The pump-out station snall be self-contained and specifically designed for handling sewage waste SITE PLAN generated from vessels and recreational vehicles. 1' = 100' The pump-out station shall include, but not be limited to the following components: INSTALL SIGN ON 6 GALV STEEL PIPE WELDED 1'0 PVC CONDUIT 1. A structural supporting system, fiberglass enclosure with non-mechanical storage for suction TO 10'x 6'x 3/8' GALV TO POWER VAULT hose. BASEPLATE. INSTALL WITH 'SIGN 2. A diaphragm type saiitory pump powered by an electric motor. (4) 1/2" LAG SCREWS EXISTING POWER VAULT EXISTING FLAG POLE The sanitary pump-out unit shall be completely self-contained with no exterior piping or AND BASEPLATE 2'0 GALV STEEL PIPE electrical components. The unit shall have a capacity of 20 GPM (6.1m) when operating at a INSTALL SEWAGE discharge pressure of 15 PSI (1.05 kg/sq cm.) and capable of suction lift of 20 ft. (6.1 m) in PUMPOUT STATION INSTALL 3'0 PVC PIPELINE SEWAGE PUMP OUT STATION approximately five seconds. INTO EXISTING PIPEWAY 3' TEE WITH CLEANOUT UNDER WALKWAY DECK 3* TEE WITH CLEANOUT STEEL MOUNTING PLATE The pump shall be powered by a 3/4 HP thermal protected explosion-proof 115/230/1/60/Hz AND DRAIN VALVE r — AND GRAIN VALVE gear head motor (Class !, Group D). The Motor shall be controlled by a Weatherproof electric MOUNT UNDER WALKWAY _ — timer capable of operating for fifteen minutes to turn off at the end of operating period. L _ WOODEN DECK WALKWAY WALKWAY TO SHORE The suction hose shall be chemical and oil resistant 50 feet of 1-1/2' crush-proof smooth — — — — — interior bare hose equipped with valve and site glass. 3 0 —PVC L _ — _ 1 The marine pump-out station frame shall be attached to the float dock using a Base Plate J* Pump-A-Head part number 165. Piaellne and Fitting 8' FLOATING WALKWAY AND The discharge pipeline shall be 3-Inch diameter PVC schedule 40 pipe and fittings. VESSEL MOORAGE DOCK TEE \-3'0 PVC PIPELINE sewage discharge hose, shall be 3-inch diameter black FIexwing hose as manufactured INSTALL IN EXISTING PIPEWAY by Goodyear or approved equal. SEWAGE PUMPOUT STATION UNDER WALKWAY DECK This hose may be purchased from Pump-A-Head part number 923. Discharge valve shall be 3- PLAN DETAIL SECTION inch full opening ball valve. 1/4' a 1'-0' AS NOTED 1/2' 1'-0' mm The sign shall be Pump--A-Head part number 920 or equal- No. REN9p/3 DATE By DE94"rD APPRO`.ED JDe NAY[ S HEET SCG Parnmetrlx,Inc. auw sc,� P .� a�N� M.� >a CONCEPTUAL DESIGN MK/WJH AS NOTED ...a..- �y .».. ram....«aWASTEWATER PUMPOUT FACIL111ESFIGURE 2 ALDERBROOK INN MARINA SITE PLAN AND DETAILS v�EcxED SCG DATE OCTOBER, 1991 a � srµ jon NO. nt[Na 21-2070-01 20700101 L IMPLEMENTATION ASPECTS Cost Estimate The estimated construction cost of the Alderbrook Inn Marina Wastewater Pump-Out Station as shown in Figure 2 has been prepared and is presented in Table 1. The total projected costs are estimated at $11,600.00. TABLE 1 COST ESTIMATE MARINE WASTEWATER PUMP-OUT FACILITY ITEM ESTIMATED COST Pump-Out Station $ 6,000.00 Dock Piping 2,300.00 On-Shore Piping 1,500.00 Electrical 400.00 Miscellaneous 500.00 Sub Total $ 10,700.00 Tax Q 8.1% 900•pp TOTAL PROJECT COST $ 11,600.00 Project Financing The Washington State Parks and Recreation Commission (State Parks) administers a boat sewage pump-out/dump station program. This program distributes funds for the construction of pump- out and dump stations at both public and private marinas throughout the State. Funds from this program may be available to help finance the construction of the Alderbrook Inn Marina Wastewater Pump-Out Station. The next application period for project funding requests is expected to open in November- December 1991. The application period would likely close in January 1992 and the project funding list issued in the spring 1992. The Alderbrook Inn Marina Wastewater Pump-Out Station may have an opportunity for financial assistance from the program. For this reason, it is recommended that an application for project funding from this program be submitted to the State Parks as soon as the application period is opened. Engineering Report 21-2070-01 Marina Wastewater Ronp-Out Facilities 5 October 1991 Schedule Given the possibility of financial assistance from State Parks for this project, construction of the Alderbrook Inn Marina Wastewater Pump-Out Station should be postponed until the State Parks 1992 project funding list is issued. Construction could then proceed in the early summer of 1992. Engineering Report 21-2070-01 Marina Wastewater Pump-Out Facilities 6 October 1991 DESIGNED TO SOLVE IK( - - - YOUR SANITATION NEEDS I I ,] 1, 1 U STATIONARY 11:4 77 y F �'- ,- STATIONARY PUMP-A-HEAD PUMP-A-HEAD is a convenient, complete pumping system for marinas, live-aboard facilities, boatyards, fuel docks, campgrounds, and RV parks. Components are housed in attractive, all-weather enclosures. Discharge piping is connected to a sewer line, septic tank system, or holding tank. Stationary PUMP-A-HEAD models are available in several configurations to fit any installation requirement. PUMP A HEAD recreation&marine sanitation systems 3235 Hancock St.,Suite 200,San Diego,CA 92110 FAX(619)298-7828 (619)298-3800 ;T DON'T Components: All components are made of signal when the holding tank is clear of waste. non-corrosive materials or feature a triple-layer A shut-off valve provides a drip-tight seal finish. Stainless steel parts, including all nuts when hoses are not in use. All units are and bolts, are Grades 304 to 316. available with an optional 50' suction hose assembly. Pump: The diaphragm-type pump is manu- factured specifically for sewage handling and Capacity: The discharge capacity is 20 gal- is capable of passing solids up to 11/2" in diam- Ions per minute. Suction lifts to 20'; discharge eter.Aluminum parts are coated for better resist- heads to 30'. Capacity depends upon the ance to saltwater corrosion. The reinforced length and size of discharge piping and the neoprene diaphragm is supported by two height that the fluid must be lifted. plates and secured to a stainless steel drive-rod by a stainless steel nut and lock washer. Model 150 comes with a standard on/off switch. However, any of the following alter- Power: Models 150 and 175 are powered by nate security controls may be ordered: key a standard 1/2-HP, 115/230-volt, 60-Hz, TEFC, operation, coin operation, Cor-Key operation, gear head motor. Model 200 includes a stan- or token operation. dard 1/2-HP, explosion-proof motor and com- ponents. All three models may be ordered with Model 175 has a 15-minute, industrial motor- an optional 3/4-HP motor. A 50-Hz motor is driven timer. This unit shuts off automatically available by special order. after the completion of the 15-minute cycle. Hose: The 11/2"-diameter hose is manufac- Model 200 is intended for use at a fuel dock tured specifically for the PUMP-A-HEAD or other hazardous location. It is fitted with a system. Made from ethylene copolymer, it is standard 1/2-HP, explosion-proof motor and crush-resistant, corrosion-resistant, and components that meet Class 1, Group D weather-resistant, with an operating range requirements with a start/stop configuration. from —20OF to 150°F. The hose has reinforced joints, and its smooth interior prevents the trap- All Stationary PUMP-A-HEAD models meas- ping of any solids. Stainless steel clamps and fit- ure 45"(h) x 37"(w) x 15"(d). The shipping tings prevent marring or marking of decks and weight is approximately 250 pounds. hulls. Polyolefin reinforcements at each end pre- vent kinking. The neoprene nozzle is copper- PUMP-A-HEAD recommends the use of its reinforced and will fit most hull-mounted Coated Steel Mounting Plate (#PAH 165) for waste fittings. The sanitary nozzle guard added stability on wooden decks. reduces wear on the nozzle and is adapted to a 11/2" national standard pipe thread,common PUMP-A-HEAD,formerly KECO, Inc., has been to all marine fittings. (A 11/4" thread is available the recognized leader of engineering and tech- to meet Canadian standards.) nology in the marine sanitation field for over 20 years. PUMP A HEAD responds to the Units are shipped with a 30' suction hose specific needs of its customers by offering a assembly that includes PUMP-A-HEAD's exclu- complete line of pump-out stations to solve any sive Lexan site glass, which provides a visual sanitation problem. PUMP A HEAD recreation&marine Sanitation Systems 3235 Hancock St.,Suite 200,San Diego,CA 92110 FAX(6191298-7828 16191298-3800 490S 3M PUMP IT, DON'T DUMP IT MOTOR/PIPE SIZE IK( SPECIFICATIONS _ : pipe ' • f ' • y ' , w h se ? `Pe • •. P o e I�- LENGTH — To select the appropriate pump motor Length )in feet) and discharge pipe sizes: Height (in eet) /2 HP Pump Motor Option 3/4 HP Pump Motor Option A-Head location (at the low water measure the height from the Pump- 2" Pipe 2112" Pipe 3" Pipe 2" Pipe 21/2" Pipe 3" Pipe level)to the discharge point(manhole 1 237 603 1900 365 967 2900 or storage tank); 2 225 600 1800 350 934 2800 3 215 566 1700 336 900 2700 (2)measure the length from the Pump- 4 200 533 1600 325 867 2600 A-Head location to the discharge 5 187 Soo 1400 1 313 834 2500 point. These two dimensions wiil 6 175 466 1400 300 800 2400 determine the appropriate motor size 7 167 437 1300 258 767 2300 and pipe size options. 8 150 400 1260 275 734 2200 9 137 366 1100 263 600 2100 10 125 332 1000 250 607 2000 Minimum discharge pipe and hose size 11 112 300 900 238 634 1900 required is 2".Preferred discharge pipe, 12 110 266 800 226 600 1800 valve and hose size is 2112". Schedule 13 87 233 700 214 565 1700 80 PVC pipe and Goodyear Flexwine 14 75 200 600 202 539 1600 hose is recommended.All hoses must 15 67 166 500 190 500 1500 be the same I.D. as pipe. Use of full 16 50 133 400 178 467 1400 opening check valves on discharge is 17 37 100 300 166 434 1300 acceptable, use ofinline check valves 18 25 66 200 154 400 1200 on the discharge pipe system will void 19 12 33 100 142 367 1 100 Pump-A-Head warranty. 20 — — — 130 1 334 1000 21 118 300 900 22 106 267 Soo 23 94 234 700 SEE REVERSE SIDE FOR2 200 600 SPECIFIC INSTALLATION & 25 Do Not Operate 80 1677 Soo PIPING RECOMMENDATIONS /= HP Pump In 26 This Range 58 134 400 AND INFORMATION 27 46 Too 300 28 34 67 200 29 22 34 100 30 PUMP--AHEAD marine&recreation sanitation systems 3235 Hancock St.,Suite 200,San Diego,CA 92110 (619) 298-3800 FAX(619) 298-7828 PUMP IT, DON'T DUMP IT INSTALLATION RECOMMENDATIONS should be avoided. Axial movement of piping STATIONARY MODELS 150, 175 & 200 should be permitted by not fastening support clamps too tightly. Support spacing may be Stationary model Pump-A-Heads should be situated doubled for vertical runs. Valves and heavy fit- in a location so that it is readily accessible to all size tings should be individually supported. vessels. The ideal location for a stationary unit is on a dock end tie. Pump-A-Head should be located as EXPANSION JOINT. (PAH #940) close to water level as possible to minimize suction Temperature variations result in axial expansion lift. Suction capacity is reduced with excessive lift and of discharge piping. PVC pipe changes approx- distance. Always keep suction requirements to a imately 3/4" per each 20 degrees of change in minimum. Pump-Out Sign (PAH #920) should be temperature for every 100 feet of length. There- posted for clear visibility to transient boaters. fore seasonal temperature variations must be accommodated with the insertion of expansion All stationary Pump-A-Heads should be securely joints. fastened to concrete docks with stainless steel lag bolts. Installations on wooden floats or other GANGWAY FLEX HOSE: (PAH #921-923) materials should include a Steel Mounting Plate(PAH Hose must be full pipe size, supported and #165) to assure stability looped as indicated on drawing and not allowed to hang down. This prevents potential blockages of solids in hose. DISCHARGE PIPING RECOMMENDATIONS & INFORMATION VALVES: (PAH # All shut off valves es must be full opening, and THREE CRITICAL PARTS OF DISCHARGE SYSTEM: equal to the pipe size. Ball valves are preferred and gate valves are acceptable. Butterfly valves A) PIPE SIZE: are not allowable. Shut off valves are recom- Chart on reverse side determines horsepower mended in discharge piping on the discharge side requirements and pipe size. The chart con- of the gangway hose in event of hose failure. templates a minimal number of pipe fittings. Shut off valves are required for each pump in a Excessive use of elbows and tees may affect multiple pump-out system utilizing the same pipe size calculations. PVC schedule 40 is the discharge line. Check valves are suggested on recommended discharge pipe material. Max- force mains with particularly high discharge imum Pump-A-Head discharge pressure will pressure and to prevent backflow in the event not normally exceed 15 pounds, Booster of dock piping failure. Check valve should be Pump discharge pressure will not normally swing check type only! In line check valves exceed 50 pounds. should never be used in this application and B) RUN: will void warranty. The length of piping from connection at the CLEANOUT pump-out point of discharge to the point of Cleanout connections should be provided at low disposal (i.e., holding tank, sewer line, gravity spots in piping and at a minimum of 200' in level line or septic tank system). runs. C) HEIGHT: The difference in elevation from the discharge WINTERIZING: connection at pump-out to final elevation at The simplest method is to flush the lines by the end of run based on maximum condi- pumping water through them for 10-15 minutes. tions(low tide/maximum seasonal draw),and All lines should be drained,care should be taken the maximum elevation on discharge side. to ensure that the low spots are drained com- pletely. Compressed air can be blown through PIPING SUPPORT: the lines by working from the highest to lowest Discharge piping should be supported approx- points. The Pump-A-Head suction valve should imately every seven feet. Uniform placement of be removed and stored with the suction hose in supports is important, any concentrated loads a warm dry location. PUMP A HEAD marine&recreation sanitation systems 3235 Hancock St., Suite 200,San Diego,CA 92110 (619) 298-3800 FAX(619) 298-7828 PUMP IT, DON'T DUMP IT