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HomeMy WebLinkAboutP_Septic_Design_250108_v17 2 74 7 0 6 8 7 6 78 200 ' SL1 R E S E R V E B E D 14' 7 9 ' 14' 7 9 ' 100 ' M I N SL4 SL3 5' MI N TA N K NEW ADU (2 BEDROOM MAX) EXISTING 3 BEDROOM HOUSE 5' MI N TA N K 5' MIN TANK SL2 418' MIN. D . F . 5 ' M I N . 10 ' MI N . 1 2 3 CONTROL POINT PROP CORNER ELEV=78' 78 CONTROL PANEL IN LINE OF SIGHT OF PPUMP CHAMBER 1,500 GALLON SEPTIC TANK1 3"Ø TRANSPORT LINE 2 3 4 LEGEND 1,500 PUMP CHAMBER SL#SOIL LOG W WATER LINE 4004 NE 4TH ST., #107-508 RENTON, WA 98056 425.457.6029 425.432.4461 FAX WI L L I A M S R E S I D E N C E ON - S I T E S E W A G E D I S P O S A L D E S I G N 13 4 1 1 S E 1 5 1 S T S T R E E T R E N T O N KI N G C O U N T Y 4" MAX NTSINSTALL CLEANOUTS ON ALL LATERALS LATERAL CLEANOUT/ MONITORING PORT 6" PERF. PVC PIPE WITH 1/2"∅ HOLES DRILLED 3" O.C. FOR BOTTOM 12" OF PORT. ORIGINAL GROUND SURFACE CUT SLOT IN 6" PVC FOR UPTURN LATERAL INSTALL 1/2" REBAR THROUGH PVC PIPE TO EXTEND TWO FEET ON EACH SIDE BOTTOM OF TRENCH (INFILTRATIVE SURFACE) SET CAP FLUSH WITH FINISHED GRADE FPT CAP MPT X SOC DRILL ONE HOLE UPWARD AT END OF LATERAL FOR TEST. 45° ELBOW LATERAL END FINISHED GRADE SECTION VIEW 1.THE APPROVAL OF THE ON-SITE SEWAGE DISPOSAL DESIGN IS NOT A PERMIT TO CLEAR THE PARCEL. A SEPARATE PERMIT MAY BE REQUIRED FROM THE COUNTY TO CLEAR ANY PORTION OF THE PARCEL. 2.SENSITIVE AREAS MAY BE PRESENT NEAR THE DRAIN FIELD AREA THAT MAY EFFECT THE INSTALLATION OF THE DRAIN FIELD. SEPARATE PERMITS MAY BE REQUIRED FROM THE COUNTY FOR SENSITIVE AREA ISSUES. 3.EXISTING UTILITY LOCATIONS SHOWN HEREON ARE APPROXIMATE ONLY. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO DETERMINE THE EXACT VERTICAL AND HORIZONTAL LOCATION OF ALL EXISTING UNDERGROUND UTILITIES PRIOR TO COMMENCING CONSTRUCTION. NO REPRESENTATION IS MADE THAT ALL EXISTING UTILITIES ARE SHOWN HEREON. THE DESIGNER ASSUMES NO RESPONSIBILITY FOR UTILITIES SHOWN, OR NOT SHOWN IN THEIR PROPER LOCATION. 4.THE USE OF GARBAGE GRINDERS IS NOT RECOMMENDED. ELIMINATING THE USE OF GARBAGE DISPOSAL WILL IMPROVE WASTEWATER SYSTEM PERFORMANCE. THIS DESIGN IS BASED ON A SYSTEM WITHOUT A GARBAGE GRINDER. INSTALLATION OF A GARBAGE GRINDER WILL NECESSITATE INCREASING SEPTIC TANK SIZE AND MORE FREQUENT MONITORING OF THE SOLIDS LEVELS IN THE SEPTIC TANK. 5.CONTOURS, BUILDINGS, SOIL LOGS, AND OTHER SITE FEATURES ARE SHOWN FOR REFERENCE AND ARE NOT SURVEYED. ALL ELEVATIONS ARE BASED ON FIELD MEASUREMENTS AND CONDITIONS MAY CHANGE BASED ON CONSTRUCTION ACTIVITY. THIS PLAN DOES NOT REPRESENT AN ACTUAL FIELD SURVEY AND IS FOR SEPTIC DESIGN PURPOSES ONLY. 6.CALL 811 TWO WORKING DAYS BEFORE YOU DIG OR VISIT HTTP://WWW.CALLBEFOREYOUDIG.ORG/ GENERAL NOTES: PLAN NOTES: 1.A COUNTY PERMIT IS REQUIRED FOR THE CONSTRUCTION OF THIS DESIGN. THIS DESIGN MAY ONLY BE INSTALLED IF STAMPED APPROVED BY THE COUNTY AND MAY ONLY BE INSTALLED BY A COUNTY CERTIFIED INSTALLER. 2.ALL WORK SHALL CONFORM TO COUNTY STANDARDS AND GUIDELINES. STANDARDS AND GUIDELINES NOT SPECIFIED BY THE COUNTY SHALL CONFORM TO THE WASHINGTON ADMINISTRATIVE CODE (WAC) CONCERNING ON-SITE SEPTIC SYSTEMS (WAC 246-272A) AND THE LATEST EDITION OF THE WASHINGTON STATE DEPARTMENT OF HEALTH (WSDOH) RECOMMENDED STANDARDS AND GUIDELINES FOR PRESSURE DISTRIBUTION SYSTEMS AND SUBSURFACE DRIP SYSTEMS. 3.A COPY OF THE APPROVED PLAN SET SHALL BE KEPT AT THE JOB SITE AT ALL TIMES. 4.THE BEDS SHALL FOLLOW THE ORIGINAL GROUND SURFACE CONTOURS AND BE LEVEL. INSTALL THE BEDS AS SHOWN ON THE PLAN VIEW LAYOUT 5.STOCKPILE THE BACKFILL AND CONSTRUCTION MATERIALS ADJACENT TO THE PROPOSED DRAIN FIELD BUT NOT IN THE RESERVE DRAIN FIELD AREA. 6.AN INSPECTION OF THE SYSTEM BY THE DESIGNER IS REQUIRED PRIOR TO BACKFILLING OVER THE SEPTIC TANKS, TRANSPORT LINE TRENCHES AND THE DRAIN FIELD. 7.INSTALL CLEANOUTS EVERY 50' ALONG GRAVITY PIPE RUNS AND AT ANGLE POINTS. 8.ALL VALVES AND FILTERS SHALL BE READILY ACCESSIBLE FOR INSPECTION AND SERVICING. 9.CHANGES IN TANK CONFIGURATION OR LOCATION MUST BE APPROVED BY THE DESIGNER OR DESIGN MAY BE INVALID. 10.IF THE DRAIN FIELD SOIL IS DISTURBED PRIOR TO INSTALLATION, THE DESIGN MAY BE VOID. 11.ANY CUTS INTRODUCED WITHIN 50' OF THE DRAIN FIELD AREA MAY VOID THE DESIGN. 12.TREES AND/OR STUMPS GREATER THAN 18" IN DIAMETER, WHEN MEASURED 2 FEET ABOVE GRADE, MAY BE CUT AT GROUND LEVEL OR BURNED IN PLACE TO AVOID DISTURBING THE SOIL. IF TREES ARE TO BE REMOVED, LEAVE STUMPS AND ROOTS IN THE GROUND. MOW OTHER VEGETATION TO GROUND SURFACE. 13.MAINTAIN 10FT SETBACK FROM ALL WATER/IRRIGATION LINES AND ANY SEPTIC COMPONENTS. EXISTING IRRIGATION AND WATER LINES SHALL BE REMOVED OR RELOCATED AS NECESSARY. PERPENDICULAR CROSSINGS ARE ALLOWED. SEE SEWER/WATER CROSSING DETAIL FOR PROPER METHOD OF CROSSING. 14.FLOOR DRAINS SHALL NOT BE CONNECTED TO THE SEPTIC SYSTEM. DRAINS FROM ANY COMMERCIALLY MADE TUB, SHOWER, BASIN, SINK, OR TOILET ARE NOT CONSIDERED FLOOR DRAINS. 15.NO ROOF, FOOTING, OR SURFACE DRAINS SHALL BE CONNECTED TO THE SEPTIC SYSTEM. 16.FOOTING DRAINS WILL NOT BE ALLOWED WITHIN 30' DOWN SLOPE OF THE DRAIN FIELD. STORM WATER DISPERSION OR INFILTRATION TRENCHES ARE NOT ALLOWED WITHIN 100' UPHILL OF DRAIN FIELD OR 30' DOWN SLOPE OF THE DRAIN FIELD. DIRECT ALL STORM WATER RUNOFF (ROOF, FOOTING, ETC.) AWAY FROM THE DRAIN FIELD AND TANKS. 17.DETAILS SHOWN ARE SCHEMATIC. SEE PLAN VIEW FOR ACTUAL CONFIGURATION. MATERIALS: 1.ALL PLUMBING MUST BE OF PVC MATERIAL. 2.THE SIDE-SEWER CONNECTION PIPE AND ALL PIPING BETWEEN SEPTIC TANKS SHALL BE MIN. 4-INCH DIAMETER ASTM D3034 SDR-35 PVC. 3.CLASS 200 PVC SHALL MEET THE REQUIREMENTS OF ASTM D2241 SDR-21 PVC. 4.SCHEDULE 40 & SCHEDULE 80 PVC SHALL MEET THE REQUIREMENTS OF ASTM D1785. 5.TANKS SHALL BE CONCRETE AND BE INCLUDED ON THE WASHINGTON STATE HEALTH DEPARTMENT LIST OF REGISTERED SEWAGE TANKS (WAC 246-272C). SUBSTITUTION OF MATERIAL MAY BE ALLOWED WITH DESIGNER REVIEW AND APPROVAL. 6.ALL TANK INLET/OUTLET GASKETS SHALL CONSIST OF A RUBBERIZED MATERIAL THAT IS CAST INTO THE TANK WALL, MUST BE ABLE TO WITHSTAND VIBRATION AND/OR SETTLING, RESISTANT TO SEWER GASSES, AND CAPABLE OF ACCEPTING A NON-CORROSIVE CLAMP AND SCREW TO SECURE THE CONNECTING PIPE. 7.THE SEALANT BETWEEN TANK RIM AND LID, AND BETWEEN THE TANK LID AND RISER MUST BE ABLE TO PROVIDE A WATERTIGHT SEAL REGARDLESS OF WEATHER CONDITIONS OR TEMPERATURE DURING SEALANT APPLICATION. 8.TANK RISERS SHALL BE PVC, WATERTIGHT, AND HAVE A SOLID LOCKING LID. ELECTRICAL AND EFFLUENT PIPES THAT EXIT THE RISER MUST USE A RUBBERIZED GASKET WITH A WATERTIGHT SEAL THAT MUST BE ABLE TO WITHSTAND VIBRATION AND/OR SETTLING AND RESISTANT TO SEWER GASSES. 9.ALL VALVE BOXES SHALL BE NON-CONCRETE (POLYPROPELENE, HDPE, ETC) AND HAVE RISERS TO FINISHED GRADE. VALVE BOXES SHALL BE SET AND LEVELED ON A PEA GRAVEL BASE UNLESS OTHERWISE NOTED. 10.ALL MATERIALS AND MECHANICAL/ELECTRICAL COMPONENTS SHALL BE RATED FOR USE IN WASTEWATER APPLICATIONS. 11.SUBSTITUTION OF ANY PARTS LISTED MUST HAVE THE APPROVAL OF THE DESIGNER. 12.SEE INDIVIDUAL DETAILS FOR MATERIALS NOT LISTED HERE. 13.THE GEOTEXTILE (FILTER FABRIC) SHALL BE NON-WOVEN, FREE OF ANY CHEMICAL TREATMENT OR COATING WHICH REDUCES PERMEABILITY, INERT TO CHEMICALS COMMONLY FOUND IN SOIL, AND MEET OR EXCEED THE "MINIMUM AVERAGE ROLL VALUES" LISTED IN TABLE 3, "GEOTEXTILE SPECIFICATIONS" OF THE LATEST EDITION OF THE WSDOH RECOMMENDED STANDARDS AND GUIDELINES FOR DOSING GRAVITY SYSTEMS. 14.DRAIN ROCK SHALL BE WASHED GRAVEL OR CRUSHED ROCK RANGING IN SIZE FROM THREE-QUARTERS INCH TO TWO AND ONE-HALF INCHES, AND CONTAINING NO MORE THAN TWO PERCENT BY WEIGHT PASSING A US NO. 8 SIEVE AND NO MORE THAN ONE PERCENT BY WEIGHT PASSING A US NO. 200 SIEVE. 4004 NE 4TH ST., #107-508 RENTON, WA 98056 425.457.6029 425.432.4461 FAX WI L L I A M S R E S I D E N C E ON - S I T E S E W A G E D I S P O S A L D E S I G N 13 4 1 1 S E 1 5 1 S T S T R E E T R E N T O N KI N G C O U N T Y NTS SLOPE TO DRAIN DOSING CHAMBER PROFILE VIEW 1,500 GALLONS SINGLE COMPARTMENT SEPTIC TANK PROFILE VIEW 1,500 GALLONS DOUBLE COMPARTMENT 2/3 TOTAL VOLUME APPROXIMATE WATER TABLE ELEVATION ± 70' 4"∅ PVC @ 2.00% MIN. I.E.= ± 75.0' 24" LOCKING GAS TIGHT MANHOLE COVER. FASTEN WITH FOUR SCREWS PER LID. USE #3 SQUARE DRIVE OR LARGER. COVER MAY VARY 12"-36" SEPTIC TANK AND DOSING CHAMBER COVER MAY VARY 12"-36" 24" LOCKING GAS TIGHT MANHOLE COVER. FASTEN WITH FOUR SCREWS PER LID. USE #3 SQUARE DRIVE OR LARGER. PVC RISER TO BRING ELEVATION TO THE SURFACE. ALL JOINTS TO BE SEALED WITH MASTIC (TYP.)SLOPE TO DRAIN PVC RISER TO BRING ELEVATION TO THE SURFACE. ALL JOINTS TO BE SEALED WITH MASTIC (TYP.) BALL CHECK VALVE UNION DISCHARGE FLOAT TREE ON/OFF FLOAT HIGH LEVEL ALARM FLOAT REDUNDANT OFF FLOAT 4"∅ PVC @ 2.00% MIN. I.E.= ± 74.75' COMMERCIAL GRADE FILTER ACCESSIBLE THROUGH MANHOLE. I.E.= ± 74.50' CORROSION AND EXPLOSION PROOF NEMA 4X AND 7 NON-METALLIC JUNCTION BOX INLET TEE LIQUID LEVEL CONTROLS GASKETED CHAMBER LID WITH HOLD DOWN BOLTS OR SCREWS DISCHARGE GAS SEAL END OF CONDUIT TO CONTROL PANEL SEE DOSING CHAMBER SECTION VIEW PLAN VIEW 1/3 TOTAL VOLUME LIFT CHAIN SCHEMATIC NATIVE SOIL BACKFILL FREE OF ROCKS >3" (TYP.). SEE NOTES ABOVE FOR COMPACTION 4"-6" MIN. MEDIUM SAND (TYP.) SEE NOTES ABOVE FOR COMPACTION 6" MIN.18"18" 6" MIN. TANK NOTES: 1.CONTROL POINT: NW PROP CORNER ELEVATION= ± 78' 2.STUB OUT I.E.= ± 76' 3.DRAIN FIELD MANIFOLD INLET ELEVATION= ± 76' 4.PROVIDE AT LEAST ONE CLEAN OUT BETWEEN THE STUB OUT AND THE SEPTIC TANK INLET. 5.FOLLOW TANK MANUFACTURERS INSTALLATION INSTRUCTIONS. 6.TANK EXCAVATION SHALL BE LEVEL AND COMPACTED PRIOR TO PLACING BEDDING. 7.PROVIDE 4"-6" OF LEVEL MEDIUM SAND BEDDING BENEATH TANKS. COMPACT TO 95%. 8.PROVIDE NATIVE SOIL BACKFILL FREE OF ROCKS >3" AS BACKFILL AROUND TANKS. MAXIMUM 10" LIFTS AND COMPACT TO 95%. 9.LOWER 18" OF COVER OVER TOP OF TANKS SHALL BE NATIVE SOIL BACKFILL FREE OF ROCKS >3". MAXIMUM 10" LIFTS. COMPACT TO 95%. 10.ALL TANKS SHALL BE ADEQUATELY VENTED. VENTING MAY BE ACCOMPLISHED BY CONNECTION TO BUILDING SEWER VENTS OR BY A DIRECT TWO-INCH MINIMUM VERTICAL VENT TO THE ATMOSPHERE. 13.ALL JOINTS TO BE SEALED WATER TIGHT WITH MASTIC. 14.ALL TANKS SHALL BE TESTED & CONFIRMED WATERTIGHT. 4004 NE 4TH ST., #107-508 RENTON, WA 98056 425.457.6029 425.432.4461 FAX WI L L I A M S R E S I D E N C E ON - S I T E S E W A G E D I S P O S A L D E S I G N 13 4 1 1 S E 1 5 1 S T S T R E E T R E N T O N KI N G C O U N T Y 2" MIN. ABOVE PUMP SLOPE TO DRAIN 750 GALLONS (ONE DAY RESERVE) OUTLET PUMP OFF LEVEL 31.25 GALLON DOSE VOLUME PUMP ON LEVEL SURGE VOLUME 300 GALLONS ALARM LEVEL PUMP 5 MIN. FLOAT TREE REDUNDANT OFF FLOAT ON/OFF FLOAT HIGH LEVEL ALARM FLOAT INLET TEE ACCESSIBLE CONTROL PANEL WITH VISUAL/AUDIBLE ALARM ON SEPARATE CIRCUITS. PANEL TO BE INSTALLED IN DIRECT LINE OF SIGHT OF THE DOSING CHAMBER. 36" MAX. ORENCO PVC MANHOLE RISERS OR EQUIVALENT 24"∅ RISERS 3" BRICKS GAS SEALED CONTROL CIRCUIT CONDUIT TO CONTROL PANEL. INTRINSICALLY SAFE WIRING ONLY. NTSSCHEMATIC DOSING CHAMBER 2' M I N . DOSING CHAMBER SECTION VIEW DOSING CHAMBER NOTES: 1.ALL INTERNAL TANK PIPING SHALL BE SCHEDULE 40 PVC OR BETTER. FITTINGS SHALL BE SCHEDULE 80 OR BETTER. 2.CONTROL-ALARM PANEL SHALL BE OUTDOOR APPROVED OR WEATHER PROTECTED, READILY ACCESSIBLE, TAMPER RESISTANT, AND IN DIRECT LINE OF SIGHT OF THE DOSING CHAMBER. 3.ALL ELECTRICAL WORK TO THE CONTROL PANEL MUST BE COMPLETED PRIOR TO FINAL INSPECTION. THE SYSTEM SHALL BE TESTED USING PERMANENT POWER. 4.USE GEOFLOW 1-ZONE SIMPLEX AUTOMATIC CONTROL PANEL WITH TIMER AND AUTOMATIC FLUSHING WITH SJE RHOMBUS SENSOR FLOAT MERCURY FLOATS OR EQUAL. 5.PANEL SHALL HAVE AN EVENT COUNTER, HOUR RUN METER, AND VISUAL/AUDIBLE ALARM. THE ALARM CIRCUIT SHALL BE INDEPENDENT OF THE PUMP CIRCUIT. 6.MOUNT THE CONTROL PANEL ON A NON-BEDROOM EXTERIOR WALL OR ON ITS OWN PEDESTAL APPROXIMATELY FIVE FEET HIGH ABOVE FINAL GRADE. 7.A TIMER SHALL BE USED IN CONJUNCTION WITH THE ON/OFF FLOAT TO TURN THE PUMP ON EVERY 1 HOUR FOR 0.4 MINUTES. ACTUAL RUN TIME SHALL BE SET BY TESTING AS PER NOTE 8. 8.AT THE PRESSURE TEST THE INSTALLER SHALL VERIFY THE PUMP RUN TIME. THE PUMP RUN TIME SHALL PROVIDE A DOSE OF 31.25 GALLONS. THE TIMER SHALL THEN BE SET FOR THIS PUMP RUN TIME. 9.THE FOLLOWING CONDITIONS SHALL BE MET IN ORDER FOR THE PUMP TO TURN ON: A. THE ON/OFF FLOAT IS IN THE ON POSITION. B. THE TIMER IS IN THE ON CYCLE. 10.PUMP IS AN GOULDS MODEL WE20H OR EQUIVALENT SUBMERSIBLE EFFLUENT PUMP THAT PROVIDES 75 GPM AT 55 FEET OF HEAD. 11.THIS DESIGN INCLUDES 10 FEET OF ELEVATION HEAD FROM THE PUMP TO THE DRAIN FIELD AND 30 LINEAL FEET OF TRANSPORT PIPE. EXCEEDING THESE NUMBERS WILL REQUIRE RESIZING THE PUMP. 12.THE PUMP IS INSIDE AN ORENCO BIOTUBE PUMP VAULT OR EQUIVALENT. 13.FLOATS/ PUMP CONTROL SWITCHES SHALL BE MOUNTED INDEPENDENT OF THE PUMP AND TRANSPORT LINE. 14.ALL PUMP CONTROL STRAPS SHALL BE MADE OF POLYPROPYLENE OR OTHER MATERIAL APPROVED FOR USE IN SEPTIC SYSTEMS. 15.THE SYSTEM SHALL BE EQUIPPED WITH AN AIR VACUUM RELEASE VALVE OR OTHER SUITABLE DEVICE TO AVOID SIPHONING. 4004 NE 4TH ST., #107-508 RENTON, WA 98056 425.457.6029 425.432.4461 FAX WI L L I A M S R E S I D E N C E ON - S I T E S E W A G E D I S P O S A L D E S I G N 13 4 1 1 S E 1 5 1 S T S T R E E T R E N T O N KI N G C O U N T Y 24" SAND SHOULDER 6" SAND SHOULDER 2.0 3' TYPICAL 10' 2.0 37.5' 3 LATERALS TOTAL 3"∅ CLASS 200 PVC TRANSPORT PIPE FROM DOSING CHAMBER 1-1/4"∅ PERFORATED CLASS 200 PVC LATERAL DRILL 3/16"∅ HOLES UPWARD AT END CAP OF EACH LATERAL NTS MANIFOLD/LATERAL LAYOUT SCHEMATIC 3/16"∅ HOLE S P L A C E D O N T O P O F LATER A L 2 1 " O N C E N T E R 3 ' M I N . 9" 24" VOID SPACE INSTALL CLEANOUTS ON ALL LATERALS NTS SAND BED 3 LATERALS TOTAL NTS SAND BED CROSS SECTION WITH INFILTRATORS 1.MINIMUM DEPTH OF SAND UNDER BED SHALL BE TWO FEET. 2.SAND BED AND PRESSURE LATERALS SHALL BE LEVEL AND FOLLOW ORIGINAL GROUND CONTOURS. 3.PROVIDE ADEQUATE DRAINAGE AROUND SAND BED. 4.EXCAVATED LOAMY SAND MATERIAL FROM SAND BED AREA MAY BE STOCKPILED FOR SUBSOIL CAP. 5.SAND BED SHALL BE INSTALLED PER THE LATEST EDITION OF THE WASHINGTON STATE DEPARTMENT OF HEALTH SAND LINED TRENCH SYSTEM GUIDELINES. 6.OPERATION AND MAINTENANCE MONITORING SHALL BE IN ACCORDANCE WITH THE LATEST EDITION OF THE WASHINGTON STATE DEPARTMENT OF HEALTH SAND LINED TRENCH SYSTEM GUIDELINES. SAND BED NOTES 3"∅ TRANSPORT PIPE CLEANOUT TYP. MONITORING PORT COVER AS MANUFACTURED BY CARSON INDUSTRIES MODEL 910-12B OR EQUAL INSTALL TWO 4"∅ PVC AERATION PORTS 4"∅ PVC MONITORING PORTS WITH SOLID CAPS, BOTTOM 9" PERFORATED WITH 1/2" HOLES 3' O.C. (TYP.) FILTER FABRIC FINISHED GRADE ORIGINAL GRADE SLOPE TO DRAIN 3/8" - 1 1/2" CLEAN WASHED COARSE AGGREGATE NO FINES OR SILT ALLOWED CLEAN SANDY LOAM FILL COARSE SAND 3" OF PEA GRAVEL 1-1/4" LATERAL VOID SPACE VOID SPACE MANIFOLD 36" MIN 51" MAX INFILTRATOR QUICK4 STANDARD CHAMBER 21" 21" 75' 4004 NE 4TH ST., #107-508 RENTON, WA 98056 425.457.6029 425.432.4461 FAX WI L L I A M S R E S I D E N C E ON - S I T E S E W A G E D I S P O S A L D E S I G N 13 4 1 1 S E 1 5 1 S T S T R E E T R E N T O N KI N G C O U N T Y