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Home My WebLink AboutR-4200380 0 N It 1 It 1 0 w I- z Cw G rr Q n Q n w Ir w Q PLANTING SPECIFICATION SITE PREPARATION 1. SEE CIVIL DRAWINGS FOR GRADING, AND UTILITY LOCATIONS AND DIMENSIONS. CONTRACTOR SHALL BE RESPONSIBLE FOR CONFIRMING LOCATION OF ALL UTILITIES. CALL FOR UTILITY LOCATIONS PRIOR TO DEMOLITION. CONSULT WITH ARCHITECT AND/ OR GENERAL CONTRACTOR PRIOR TO DEMOLITION. 2. CONTRACTOR SHALL NOTIFY THE OWNER'S REPRESENTATIVE OF ANY DISCREPANCIES FOUND IN PLANS OR DEVIATIONS FROM DOCUMENTED ON -SITE CONDITIONS. FAILURE TO NOTIFY THE OWNER'S REPRESENTATIVE IN A TIMELY MANNER SHALL RESULT IN CONTRACTOR ASSUMING RESPONSIBILITY FOR COSTS ASSOCIATED WITH ANY AND ALL REMEDIAL MEASURES REQUIRED. 3. CONTRACTOR AND ALL SUBCONTRACTORS SHALL CONFORM TO ALL STATE AND/OR LOCAL CODES. 4. CONTRACTOR SHALL INSTALL ALL PRODUCTS PER MANUFACTURERS SPECIFICATIONS. 5. IF UTILITIES ARE ENCOUNTERED, CONTRACTOR SHALL PROMPTLY INFORM BUILDING REPRESENTATIVE AND OWNER'S REPRESENTATIVE AND REPAIR ANY DAMAGES. 6. CONTRACTOR AND ALL SUBCONTRACTORS SHALL CLEAN UP ALL DEBRIS AND LEAVE SITE IN A NEAT AND ORGANIZED CONDITION DAILY. CONTRACTOR SHALL CLEAN ADJACENT SURFACES DAILY AS NECESSARY (COORDINATE WITH GENERAL CONTRACTOR FOR APPROVAL) DAILY. 7. CONTRACTOR SHALL SUBMIT LANDSCAPE PROJECT SCHEDULE TO LANDSCAPE ARCHITECT (L.A.), A MINIMUM OF 4 WEEKS PRIOR TO START OF ANY LANDSCAPE WORK. BULK MATERIALS: 1. DO NOT DUMP OR STORE BULK MATERIALS NEAR STRUCTURES, UTILITIES, WALKWAYS AND PAVEMENTS OR ON EXISTING TURF AREAS OR PLANTS. 2. PROVIDE EROSION -CONTROL MEASURES TO PREVENT EROSION OR DISPLACEMENT OF BULK MATERIALS, DISCHARGE OF SOIL -BEARING WATER RUNOFF, AND AIRBORNE DUST REACHING ADJACENT PROPERTIES, WATER CONVEYANCE SYSTEMS, OR WALKWAYS. 3. DO NOT MOVE OR HANDLE MATERIALS WHEN THEY ARE SATURATED OR FROZEN. PLANTING SOIL: 1. AT GRADE LANDSCAPE AREAS SHALL BE DEEP TILLED TO A DEPTH OF AT LEAST 12 INCHES TO FACILITATE DEEP WATER PENETRATION AND SOIL OXYGENATION. 2. FOR ALL NEWLY LANDSCAPED AREAS AT GRADE, 4 CUBIC YARDS OF COMPOST PER 1,000 SQUARE FEET OF LANDSCAPE AREA SHALL BE INCORPORATED TO A DEPTH OF AT LEAST 6 INCHES. 3. FOR ALL NEWLY LANDSCAPED AREAS, INSTALL SANDY LOAM TOPSOIL. SPREAD TO DEPTHS IN PLAN NOTES, IN ADDITION TO THE INCORPORATION OF ORGANIC MATTER INTO THE TOP HORIZON OF THE IMPORTED SOIL. 4. SEE PLANS FOR SOILS. 4. COMPOST SHALL BE COMPOST MULCH FROM CEDAR GROVE OR APPROVED EQUAL. MULCHING. 1. MULCH SHALL BE APPLIED TO ALL PLANTING AREAS. MULCHES SHALL BE APPLIED TO THE FOLLOWING DEPTHS: 3 INCHES OVER BARE SOIL, AND 2 INCHES WHERE PLANT MATERIALS WILL COVER 2. MULCH TO BE FREE OF DELETERIOUS MATERIALS AND SUITABLE AS A TOP DRESSING OF TREES AND SHRUBS, CONSISTING OF COMPOSTED AGED (MIN. 1 YEAR) FIR OR HEMLOCK BARK CHIPS AND TO BE DARK (BLACK) IN COLOR. COMPOST MULCH TO BE WELL -COMPOSTED, STABLE AND WEED -FREE ORGANIC MATTER WITH ORGANIC MATTER COMPRISING 50 TO 60 PERCENT OF DRY WEIGHT. 3. TOP OF MULCH SHALL BE FLUSH WITH FINISH GRADES. DO NOT PLACE MULCH WITHIN 2 INCHES OF TRUNKS OR STEMS. PREPARATION: 1. CLEAN SOIL OF CONCRETE SLURRY, CONCRETE LAYERS OR CHUNKS, CEMENT, PLASTER, BUILDING DEBRIS, OILS, GASOLINE, DIESEL FUEL, PAINT THINNER, TURPENTINE, TAR, ROOFING COMPOUND, ACID AND OTHER EXTRANEOUS MATERIALS THAT ARE HARMFUL TO PLANT GROWTH. PLACING MANUFACTURED PLANTING TOPSOIL OVER EXPOSED SUBGRADE: 1. TILL SUBGRADE TO A MINIMUM DEPTH OF 12" INCHES. REMOVE STONES LARGER THAN 1-1/2 INCHES IN ANY DIMENSION AND STICKS, ROOTS, RUBBISH, AND OTHER EXTRANEOUS MATTER AND LEGALLY DISPOSE OF THEM OFF OWNER'S PROPERTY. 2. APPLY, ADD SOIL AMENDMENTS, AND MIX APPROXIMATELY HALF THE THICKNESS OF TOPSOIL OVER PREPARED, LOOSENED SUBGRADE. MIX THOROUGHLY INTO TOP 6 INCHES OF SUBGRADE. SPREAD REMAINDER OF TOPSOIL. 3. SPREAD UNAMENDED SOIL TO TOTAL DEPTH REQUIRED TO MEET FINISH GRADES AFTER NATURAL SETTLEMENT. DO NOT SPREAD IF SOIL OR SUBGRADE IS FROZEN, MUDDY, OR EXCESSIVELY WET. 4. APPLY AND MIX TOPSOIL IN LIFTS NOT EXCEEDING 8 INCHES IN LOOSE DEPTH FOR MATERIAL COMPACTED BY COMPACTION EQUIPMENT, AND NOT MORE THAN 6 INCHES IN LOOSE DEPTH FOR MATERIAL COMPACTED BY HAND -OPERATED TAMPERS. 5. SOIL WILL BE INSPECTED USING A SOIL AUGER TO ENSURE UNCOMPACTED DEPTH OF AT LEAST 12", AND TOPSOIL WITH ORGANIC MATTER TO AT LEAST 8", OR AS REQUIRED. AUGER MUST PENETRATE AT LEAST REQUIRED TILLED DEPTH UNDER WEIGHT OF INSPECTOR OR IT WILL BE REJECTED. PROTECTION: 1. IF PLANTING SOIL OR SUBGRADE IS OVERCOMPACTED, DISTURBED, OR CONTAMINATED BY FOREIGN OR DELETERIOUS MATERIALS OR LIQUIDS, REMOVE THE PLANTING SOIL AND CONTAMINATION, RESTORE THE SUBGRADE AS DIRECTED BY LANDSCAPE ARCHITECT AND REPLACE CONTAMINATED PLANTING SOIL WITH NEW PLANTING SOIL. 2. REMOVE SURPLUS SOIL AND WASTE MATERIAL INCLUDING EXCESS SUBSOIL, UNSUITABLE MATERIALS, TRASH, AND DEBRIS AND LEGALLY DISPOSE OF THEM OFF OWNER'S PROPERTY UNLESS OTHERWISE INDICATED. PLANT MATERIAL OBSERVATION: 1. LANDSCAPE ARCHITECT MAY OBSERVE PLANT MATERIAL EITHER AT PLACE OF GROWTH OR AT SITE BEFORE PLANTING FOR COMPLIANCE WITH REQUIREMENTS FOR GENUS SPECIES, VARIETY, CULTIVAR, SIZE, AND QUALITY. LANDSCAPE ARCHITECT MAY ALSO OBSERVE TREES AND SHRUBS FURTHER FOR SIZE AND CONDITION OF ROOT SYSTEMS, PESTS, DISEASE SYMPTOMS, INJURIES AND LATENT DEFECTS AND MAY REJECT UNSATISFACTORY OR DEFECTIVE MATERIAL AT ANY TIME DURING PROGRESS OF WORK. REMOVE REJECTED PLANTS IMMEDIATELY FROM PROJECT SITE. 2. DO NOT PRUNE TREES AND SHRUBS BEFORE DELIVERY. PROTECT BARK, BRANCHES AND ROOT SYSTEMS FROM SUN SCALD, DRYING, WIND BURN, SWEATING, WHIPPING, AND OTHER HANDLING AND TYING DAMAGE. PROVIDE PROTECTIVE COVERING OF PLANTS DURING SHIPPING AND DELIVERY. PREPARATION: 1. PROTECT STRUCTURES, UTILITIES, SIDEWALKS, PAVEMENTS, AND OTHER FACILITIES AND TURF AREAS AND EXISTING PLANTS FROM DAMAGE CAUSED BY PLANTING OPERATIONS. 2. LAYOUT PLANTS AT LOCATIONS DIRECTED BY PLAN. STAKE LOCATIONS OF INDIVIDUAL TREES AND SHRUBS AND OUTLINE AREAS FOR MULTIPLE PLANTINGS. 3. DELIVERY: DELIVER PLANTS AFTER PREPARATIONS FOR PLANTING HAVE BEEN COMPLETED AND INSTALL IMMEDIATELY. IF PLANTING IS DELAYED MORE THAN SIX HOURS AFTER DELIVERY, SET PLANTS AND TREES IN THEIR APPROPRIATE ASPECT (SUN, FILTERED SUN, OR SHADE), PROTECT FROM WEATHER AND MECHANICAL DAMAGE, AND KEEP ROOTS MOIST. 4. FIELD CONDITIONS: VERIFY ACTUAL GRADE ELEVATIONS, SERVICE AND UTILITY LOCATIONS, IRRIGATION SYSTEM COMPONENTS, AND DIMENSIONS OF PLANTINGS AND CONSTRUCTION CONTIGUOUS WITH NEW PLANTINGS BY FIELD MEASUREMENTS BEFORE PROCEEDING WITH PLANTING WORK. 5. PLANT MATERIAL: FURNISH NURSERY GROWN PLANTS TRUE TO GENUS, SPECIES, VARIETY, CULTIVARS, STEM FORM, SHEARING, AND OTHER FEATURES INDICATED ON PLANT SCHEDULE WITH HEALTHY ROOT SYSTEMS DEVELOPED BY TRANSPLANTING OR ROOT PRUNING. PROVIDE WELL -SHAPED, FULL -BRANCHED, HEALTHY, VIGOROUS STOCK, DENSELY FOLIATED WHEN IN LEAF AND FREE OF DISEASE, PESTS, EGGS, LARVAE AND DEFECTS SUCH AS KNOTS, SUN SCALD, INJURIES, ABRASIONS AND DISFIGUREMENT. 6. PRUNING: PRUNE, THIN, AND SHAPE TREES, SHRUBS AND VINES AS DIRECTED BY LANDSCAPE ARCHITECT. 7. LABELING: LABEL AT LEAST ONE PLANT OF EACH VARIETY, SIZE, AND CALIPER WITH A SECURELY ATTACHED, WATERPROOF TAG BEARING LEGIBLE DESIGNATION OF COMMON NAME AND FULL SCIENTIFIC NAME, INCLUDING GENUS AND SPECIES. 8. IF FORMAL ARRANGEMENTS OR CONSECUTIVE ORDER OF PLANTS IS INDICATED ON THE THE DRAWINGS, SELECT STOCK FOR UNIFORM HEIGHT AND SPREAD, AND NUMBER THE LABELS TO ASSURE SYMMETRY IN PLANTING. PLANTING: 1. SET OUT AND SPACE GROUND COVER AND PLANTS OTHER THAN TREES, SHRUBS AND VINES AS INDICATED ON DRAWINGS IN EVEN ROWS WITH TRIANGULAR SPACING. 2. USE PLANTING SOIL FOR BACKFILL. 3. DIG HOLES LARGE ENOUGH TO ALLOW SPREADING OF ROOTS. 4. WATER THOROUGHLY AFTER PLANTING, TAKING CARE NOT TO COVER PLANT CROWNS WITH WET SOIL. 5. PROTECT PLANTS FROM HOT SUN AND WIND; REMOVE PROTECTION IF PLANTS SHOW EVIDENCE OF RECOVERY FROM TRANSPLANTING SHOCK. REPAIR AND REPLACEMENT: 1. REPAIR OR REPLACE EXISTING OR NEW TREES AND OTHER PLANTS THAT ARE DAMAGED BY CONSTRUCTION OPERATIONS, IN A MANNER APPROVED BY LANDSCAPE ARCHITECT. CLEANING AND PROTECTION: 1. DURING PLANTING, KEEP ADJACENT PAVING AND CONSTRUCTION CLEAN AND WORK AREA IN AN ORDERLY CONDITION. 2. REMOVE SURPLUS SOIL AND WASTE MATERIAL INCLUDING EXCESS SUBSOIL, UNSUITABLE SOIL, TRASH, AND DEBRIS AND LEGALLY DISPOSE OF THEM OFF OWNER'S PROPERTY. 3. PROTECT PLANTS FROM DAMAGE DUE TO LANDSCAPE OPERATIONS AND OPERATIONS OF OTHER CONTRACTORS AND TRADES. MAINTAIN PROTECTION DURING INSTALLATION AND MAINTENANCE PERIODS. 4. AFTER INSTALLATION AND BEFORE SUBSTANTIAL COMPLETION, REMOVE NURSERY TAGS, NURSERY STAKES, TIE TAPE, WIRE, BURLAP, AND OTHER DEBRIS FROM PLANT MATERIAL, PLANTING AREAS, AND PROJECT SITE. MAINTENANCE SERVICE: 1. LANDSCAPE CONTRACTOR SHALL PROVIDE MAINTENANCE BY SKILLED EMPLOYEES OF LANDSCAPE INSTALLER AND MAINTAIN THE PLANT MATERIAL, IRRIGATION SYSTEM AND KEEP PLANTED AREAS WEED FREE. BEGIN MAINTENANCE IMMEDIATELY AFTER PLANTS ARE INSTALLED AND CONTINUE UNTIL PLANTINGS ARE ACCEPTABLY HEALTHY AND WELL ESTABLISHED AND THROUGHOUT WARRANTY PERIOD. WARRANTY: 1. INSTALLER AGREES TO REPAIR OR REPLACE PLANTINGS AND ACCESSORIES THAT FAIL IN MATERIALS, WORKMANSHIP, OR GROWTH WITHIN SPECIFIED WARRANTY PERIOD. WARRANTY PERIOD TO BE FOR 12 MONTHS FROM DATE OF UNTIL FINAL ACCEPTANCE IS RECEIVED IN WRITING FROM THE OWNERS REPRESENTATIVE. IRRIGATION SPECIFICATION GENERAL 1. THIS DESIGN IS DIAGRAMMATIC. ALL PIPING, VALVES, ETC. SHOWN WITHIN PAVED AREAS IS FOR DESIGN CLARIFICATION ONLY AND SHALL BE INSTALLED IN PLANTING AREAS WHERE POSSIBLE. AVOID ANY CONFLICTS BETWEEN THE IRRIGATION SYSTEM, PLANTING AND ARCHITECTURAL FEATURES. 2. DO NOT WILLFULLY INSTALL THE SPRINKLER SYSTEM AS SHOWN ON THE DRAWINGS WHEN IT IS OBVIOUS IN THE FIELD THAT OBSTRUCTIONS, GRADE DIFFERENCES OR DIFFERENCES IN THE AREA DIMENSIONS EXIST THAT MIGHT NOT HAVE BEEN CONSIDERED IN THE ENGINEERING. SUCH OBSTRUCTIONS OR DIFFERENCES SHOULD BE BROUGHT TO THE ATTENTION OF THE OWNER'S AUTHORIZED REPRESENTATIVE. IN THE EVENT THAT THIS NOTIFICATION IS NOT PERFORMED, THE IRRIGATION CONTRACTOR SHALL ASSUME FULL RESPONSIBILITY FOR ANY REVISIONS NECESSARY. 3. IT IS THE RESPONSIBILITY OF THE IRRIGATION CONTRACTOR TO FAMILIARIZE HIMSELF WITH ALL GRADE DIFFERENCES, LOCATION OF WALLS, RETAINING WALLS, ETC. THE SHALL COORDINATE HIS WORK WITH THE GENERAL CONTRACTOR AND OTHER SUBCONTRACTORS FOR THE LOCATION AND THE INSTALLATION OF PIPE SLEEVES THROUGH WALLS, UNDER ROADWAYS, PAVING, STRUCTURES, ETC. 4. NOTIFY LANDSCAPE ARCHITECT OF ANY ASPECTS OF LAYOUT THAT WILL PROVIDE INCOMPLETE OR INSUFFICIENT WATER COVERAGE OF PLANT MATERIAL AND DO NOT PROCEED UNTIL THEIR INSTRUCTIONS ARE OBTAINED. PIPING 5. FOR RING-TITE PVC MAIN LINE PIPING INSIDE SLEEVES USE 1120-315 PSI PVC PLASTIC PIPE WITH SCHEDULE 40 PVC COUPLINGS. 6. IN ADDITION TO THE SLEEVES AND CONDUITS SHOWN ON THE DRAWINGS, THE IRRIGATION CONTRACTOR SHALL BE RESPONSIBLE FOR THE INSTALLATION OF SLEEVES AND CONDUITS OF SUFFICIENT SIZE UNDER ALL PAVED AREAS. 7. ALL LATERAL PIPING BENEATH PAVED AREAS SHALL BE SCHEDULE 40 PVC PIPE. 8. WHERE IT IS NECESSARY TO EXCAVATE ADJACENT TO EXISTING TREES, THE CONTRACTOR SHALL USE ALL POSSIBLE CARE TO AVOID INJURY TO TREES, AND TREE ROOTS. EXCAVATION IN AREAS WHERE 2 INCH AND LARGER ROOTS OCCUR SHALL BE DONE BY HAND. ROOTS 2 INCHES AND LARGER IN DIAMETER SHALL BE WRAPPED IN A PLASTIC BAG AND SECURED WITH A RUBBER BAND. TRENCHES ADJACENT TO TREE SHOULD BE CLOSED WITHIN 24 HOURS; WHERE THIS IS NOT POSSIBLE, THE SIDE OF THE TRENCH ADJACENT TO THE TREE SHALL BE KEPT SHADED WITH BURLAP OR CANVAS. BACKFLOW PREVENTION ASSEMBLY 9. THE BACKFLOW DEVICE SHALL BE INSTALLED ACCORDING TO LOCAL WATER PURVEYOR, HEALTH DEPARTMENT, STATE, AND FEDERAL REQUIREMENTS. 10. INSTALL BACKFLOW ASSEMBLY IN CENTER OF VALVE BOX. ALLOW ADEQUATE ROOM (6-8" PREFERABLY) ON BOTH SIDES OF ASSEMBLY FOR ACCESS. 11. STACKED VAULT BOXES MUST BE PERMANENTLY FASTENED TOGETHER. 12. SUPPORT ALL DOUBLE CHECK ASSEMBLIES 1.5" IN SIZE AND GREATER. SUPPORTS SHALL NOT INTERFERE WITH MAINTENANCE OR NORMAL OPERATION OF THE ASSEMBLY. 13. FLUSH LINES THOROUGHLY BEFORE INSTALLING ASSEMBLY. 14. WHERE DISTANCE BETWEEN WATER METER OR TAP AND BACKFLOW DEVICE IS GREATER THAN 10', ALL EXPOSED PIPING SHALL BE STENCILED "FEED LINE TO BACKFLOW PREVENTER - DO NOT TAP" AT 5INTERVALS. 15. IRRIGATION CONTRACTOR TO COORDINATE WITH RENTON WATER FOR PREINSTALLATION REQUIREMENTS, MUNICIPAL INSTALLATION, INSPECTION AND TESTING OF BACKFLOW PREVENTION DEVICE. VALVES 16. VALVE LOCATIONS SHOWN ARE DIAGRAMMATIC. INSTALL IN GROUND COVER/SHRUB AREAS WHERE POSSIBLE (NOT IN LAWN AREA.) 17. INSTALL VALVE BOXES MINIMUM 12" FROM AND PERPENDICULAR TO WALK, CURB, LAWN, BUILDING OR LANDSCAPE FEATURE. AT MULTIPLE VALVE BOX GROUPS, EACH BOX SHALL BE AN EQUAL DISTANCE FROM THE WALK, CURB, LAWN, ETC. AND EACH BOX SHALL BE MINIMUM 12" APART. SHORT SIDE OF VALVE BOXES SHALL BE PARALLEL TO WALK, CURB, LAWN, ETC. 18. LOCATE QUICK COUPLING VALVE 12" FROM HARDSCAPE AREA AND NO FURTHER THAN 100' APART. CONTROLLER & WIRING 19. ELECTRICAL CONTRACTOR TO SUPPLY 120 VAC (2.5 AMP) SERVICE TO CONTROLLER LOCATION. IRRIGATION CONTRACTOR TO MAKE FINAL CONNECTION FROM ELECTRICAL STUB -OUT TO CONTROLLER. 20. EACH CONTROLLER SHALL HAVE ITS OWN INDEPENDENT GROUND WIRE. 21. REMOTE CONTROL VALVES SHALL BE WIRED TO CONTROLLER IN SEQUENCE AS SHOWN ON PLANS. RUN WIRE FROM EACH RCV TO THE CONTROLLER. SPLICING WIRES TOGETHER OUTSIDE OF RECORD NOTE 04/25/2024 Civil Engineers THESE RECORD DRAWINGS HAVE BEEN PREPARED BASED ON 4 PERMIT REVISION V.1 E.H. 7/29/22 SURVEYED: SCALE: INFORMATION SUBMITTED, IN PART, BY OTHERS. WHILE THIS =1 s,,°°'°rs'E "ee`s T.L. 5 PERMIT REVISION CORRECTIONS V.2 E.H. 1/18/2 PER SHEET a INFORMATION IS BELIEVED TO BE RELIABLE, AHBL IS NOT °°eCe°e� hNe DESIGNED SRESPONSIBLE FOR ITS ACCURACY, OR ERROR OR OMISSIONS C°'"m°"'"Pe""ers 6 PROGRESSIVE CONSTRUCTION SET E•H• 2/07/2■ 7 CONSTRUCTION SET MS 4/03/2 Dw+wN E.H. WHICH MAY HAVE BEEN INCORPORATED INTO THIS DOCUMENT O "e19°°°rs AS -BUILT REVISIONS MM 4 25 2 CHECKED: ONE INCH AS A RESULT. THOSE RELYING ON THIS RECORD DOCUMENT $ / / AT FULL SCALE Know what's below. ARE ADVISED TO OBTAIN INDEPENDENT VERIFICATION OF ITS 22 A C O M A 30 E A T T 98 E C.S. IF NOT ONE INCH Call before you dig. ACCURACY BEFORE APPLYING IT FOR ANY PURPOSE. 1200 Sixth Ave ute eS tet1620, Seatt ea WA 98101 2" 2" 425 TEL NO. REVISION BY DATE A P P R APPROVED: SCALE ACCORDINGLY VERTICAL: NAVD 1988 HORIZONTAL: NAD 1983/1991 DATUM VALVE BOXES WILL NOT BE PERMITTED. 22. SPLICING OF 24-VOLT WIRES WILL NOT BE PERMITTED EXCEPT IN VALVE BOXES. LEAVE A 24" COIL OF EXCESS WIRE AT EACH SPLICE AND 100 FEET ON CENTER ALONG WIRE RUN. TAPE WIRE IN BUNDLES 10 FEET ON CENTER. NO TAPING PERMITTED INSIDE SLEEVES. 23. INSTALL A SPARE CONTROL WIRE OF A DIFFERENT COLOR ALONG THE ENTIRE MAIN LINE. LOOP 36" EXCESS WIRE INTO EACH SINGLE VALVE BOX AND INTO ONE VALVE BOX IN EACH GROUP OF VALVES. SPRINKLERS 24. ALL SPRINKLER HEADS SHALL BE SET PERPENDICULAR TO FINISH GRADE OF THE AREA TO BE IRRIGATED UNLESS OTHERWISE DESIGNATED ON THE PLANS. 25. IN LOCATIONS WHERE LOW HEAD DRAINAGE WILL CAUSE EROSION AND EXCESS WATER, USE POP-UP SPRINKLER MODELS WITH INTEGRAL CHECK VALVE OR CHECK VALVE ON SHRUB RISERS IN LIEU OF SCHEDULE 80 COUPLING. 26. THE IRRIGATION CONTRACTOR SHALL FLUSH AND ADJUST ALL SPRINKLER HEADS FOR OPTIMUM PERFORMANCE AND TO PREVENT OVERSPRAY ONTO WALKS, ROADWAYS AND/OR BUILDINGS AS MUCH AS POSSIBLE. THIS SHALL INCLUDE SELECTING THE BEST DEGREE OF ARC TO FIT THE EXISTING SITE CONDITIONS AND TO THROTTLE THE FLOW CONTROL AT EACH VALVE TO OBTAIN THE OPTIMUM OPERATING PRESSURE FOR EACH SYSTEM. 27. WHEN VERTICAL OBSTRUCTIONS (STREET LIGHTS, TREES, FIRE HYDRANTS, ETC.) INTERFERE WITH THE SPRAY PATTERN OF THE HEADS SO AS TO PREVENT PROPER COVERAGE, THE IRRIGATION CONTRACTOR SHALL FIELD ADJUST THE SPRINKLER SYSTEM BY INSTALLING A QUARTER, THIRD OR HALF CIRCLE HEAD AT THE SIDES OF THE OBSTRUCTION SO AS TO PROVIDE PROPER COVERAGE. ALL ADJUSTMENTS SHALL BE MADE AT NO ADDITIONAL COST TO THE OWNER. OPERATION 28. IRRIGATION CONTRACTOR SHALL INSTALL PROVISIONS FOR WINTERIZATION BY PROVIDING BOTH MANUAL DRAINS AT ALL LOW POINTS (AUTOMATIC DRAIN VALVES ARE NOT PERMITTED) AND A MEANS TO BLOW OUT IRRIGATIONS SYSTEM PIPES WITH PRESSURIZED AIR. SLOPE PIPE AT 1/2" MIN. TO DRAINS. PRESSURIZED AIR NOT TO EXCEED 20 PSI ON DRIP IRRIGATION LINES. 29. OPERATE IRRIGATION CONTROLLER(S) BETWEEN THE HOURS OF 10:00 PM AND 5:00 AM TO MINIMIZE CONFLICTS WITH PEDESTRIANS AND VEHICULAR PARKING OR TRAFFIC. 30. INSTALL DRIP LINES ACCORDING TO MANUFACTURER'S INSTRUCTIONS. NO DRIP TUBING SHALL BE LEFT EXPOSED. ROOFTOP IRRIGATION: 31. BACKFLOW PREVENTER AND VALVES SHALL BE PLACED IN VALVE BOXES IN RAISED BEDS OR PLANTERS OR WALL MOUNT WHERE NOT VISIBLE TO USERS IN ACCESSIBLE SPACE. GET APPROVAL OF LOCATION FROM LANDSCAPE ARCHITECT BEFORE INSTALLING. 32. TO THE EXTENT POSSIBLE, IRRIGATION PIPING SHALL BE CONCEALED IN OCCUPIED SPACES. PVC PIPE SHALL BE COVERED OR WRAPPED AND SHALL NOT BE EXPOSED TO SUN. STUB -UPS AND STUB -OUTS SHALL BE CONCEALED BY PEDESTAL PAVERS OR PLANTERS OF W A S- zc)e SG R .'S if/AT ��ll1 �1b� V 7 EXP.03�°�� c'I PE A R G 04/26/2024 CITY OF RENTON [;R ikov Planning/Building/Public Works Dept. R-420038 IN COMPLIANCE WITH CITY OF RENTON STANDARDS WATERSHED APARTMENTS CONSTRUCTION SET DRAFT SPECIFICATIONS DATE: 03/28/2023 FIELDBOOK: PAGE: DRAVPNG NO: L5.0 SHEET: OF: 48 48 Ln T T LO O O T N u �, T N Q J M