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Home My WebLink AboutWTR2702915.2LANDSCAPE IRRIGATION NOTES AAD DETAILS Irrigation Notes REVISED 1 /98 1. GENERAL CONTRACTOR AND LANDSCAPE CONTRACTOR TO COORDINATE: A. INSTALLATION OF 110V ELECTRICAL SERVICE FROM ELECTRICAL SOURCE TO AUTOMATIC CONTROLLER, INCLUDING WIRE HOOK-UP INTO MOUNTED CONTROLLER. IRRIGATION CONTRACTOR WILL MOUNT CONTROLLER PER DESIGN AND COORDINATE WITH GENERAL CONTRACTOR. B. INSTALLATION OF IRRIGATION/SERVICE METER AND STUB TO IRRIGATION POINT OF CONNECTION, PER UTILITY PLAN(S). PROVIDE STANDARD THREADED STUB -OUT WITH THREADED CAP ON DISCHARGE SIDE OF METER. STUB -OUT TO BE INSTALLED APPROXIMATELY 18 INCHES BELOW FINISHED GRADE. C. VERIFICATION OF STATIC WATER PRESSURE AT POINT -OF -CONNECTION (P.O.C.) CONTRACTOR SHALL NOTIFY OWNER AND BARGHAUSEN CONSULTING ENGINEERS, INC., OF ANY VARIATION IN STATIC PRESSURE OVER 5 PSI GREATER/LESS THAN DESIGN PRESSURE. D. INSTALLATION OF SLEEVING. 2. SYSTEM HAS BEEN DESIGNED FOR 39.2 GPM AT 35 PSI. STATIC PRESSURE BY WATER DEPARTMENT TEST/CALCULATION 80 PSI. CONTRACTOR SHALL PROVIDE PRESSURE REDUCING VALVE SET TO PROVIDE OPERATING PRESSURE. 3. ALL WORK PER LOCAL CODE. INSTALLATION PER MANUFACTURER'S SPECIFICATIONS. 4. ALL VALVES TO BE PLACED IN "CARSON" GRADE LEVEL BOXES WITH BOLT -LOCK LIDS (OR APPROVED EQUAL). SET BOXES 1 INCH HIGHER THAN FINISH GRADE FLUSH WITH FINISHED GRADES. 5. MAINLINE PIPE TO BE BURIED 18 INCHES AND LATERALS 12 INCHES BELOW FINISH GRADE NO ROCK OR DEBRIS TO BE BACKFILLED OVER PIPE. 6. HEAD AND LINE POSITIONING IS DIAGRAMMATIC ON PLAN. ADJUST IN FIELD AS NECESSARY FOR ADEQUATE COVERAGE. VALVES SHALL BE POSITIONED ADJACENT TO CURBS, IN SHRUB BEDS WHERE POSSIBLE. 7. PROVIDE OWNER WITH TWO (2) SETS "AS -BUILT" DRAWINGS AND OPERATOR'S MANUAL UPON COMPLETION. INSTRUCT OWNER AS TO PROPER WINTERIZATION OF IRRIGATION SYSTEM (BLOW OUT). 8. FAMILIARIZE FACILITY OPERATOR WITH IRRIGATION SYSTEM FUNCTION, CONTROLLER PROGRAMMING, SYSTEM OPERATION AND MAINTENANCE REQUIREMENTS. 9. NO SPRINKLERS ON RISERS SHALL BE INSTALLED NEXT TO WALKS, STREET, AND/OR PAVEMENT. SPRINKLERS IN HAZARDOUS LOCATIONS SHALL BE FLUSH MOUNTED, POP-UP MODELS ONLY. IRRIGATION HEADS ON RISERS SHALL BE NOTED ON THE PLANS. 10. RADIUS REDUCTION SHALL BE MADE BY USE OF PRESSURE ADJUSTMENT, SCREENS, AND/OR ALTERNATE NOZZLES. IN -NOZZLE ADJUSTMENT IS LIMITED TO 10 PERCENT FOR SPRAY HEADS AND PER MANUFACTURER'S LIMITS FOR OTHER SPRINKLERS. SPRINKLER SPACING SHALL NOT EXCEED 60% OF THE DIAMETER OF THE PUBLISHED DATA. 11. ALL CONTROL WIRE SPLICES SHALL BE MADE AT VALVE BOXES WITH WATER TIGHT ELECTRICAL SPLICES, 3M, SCOTT'S LOCK SEAL TACK 3576-78, OR EQUAL. 12. EACH VALVE BOX TO CONTAIN A MINIMUM OF ONE (1) SPARE ORANGE CONTROL WIRE FOR JACKETED WIRE. ROUTE ONE SPARE WIRE FROM THE CONTROLLER TO THE LAST VALVE OF EACH MAINLINE BRANCH. COMMON WIRE SHALL BE WHITE. SINGLE STRAND WIRE SHALL BE A MINIMUM OF 14 GAUGE WITH SPARE WIRE TO BE YELLOW. 13. ALL ELECTRICAL EQUIPMENT SHALL BE U.L. TESTED AND APPROVED, AND SHALL BEAR THE U.L. LABEL. 14. PROVIDE MANUAL SHUT-OFF VALVE TO LINES ENTERING RIGHT-OF-WAY WHEN ZONED IN COMMON WITH PRIVATE LINES. MINIMUM OF 24 INCHES INSIDE PROPERTY LINE IN 6-INCH DIAMETER VALVE BOX. 15. CROSS CONNECTION PROTECTION INSPECTION REQUIRED. THE BACKFLOW DEVICE SHALL BE TESTED UPON THE ORIGINAL INSTALLATION. THE TESTING SHALL BE PERFORMED BY A PERSON HOLDING A CURRENT CERTIFICATE AS A BACKFLOW TESTER. THE TEST REPORT SHALL BE SUBMITTED TO THE LOCAL WATER DISTRICT, OR PURVEYOR, AND OWNER WITH COPY TO BARGHAUSEN CONSULTING ENGINEERS, INC. CONTRACTOR SHALL INCLUDE TESTING IN THE SCOPE OF WORK. OWNER IS RESPONSIBLE FOR ANNUAL INSPECTIONS AFTER THE INITIAL INSPECTION. 16. CONTRACTOR SHALL PROVIDE SYSTEM WINTERIZATION/SPRING SERVICE WHEN INSTALLATION HAS BEEN COMPLETED WITHIN 90 DAYS OF NOVEMBER 1 FOR WINTERIZATION, OR MAY 15 FOR SPRING SERVICE. SERVICE TO BE PERFORMED AS NEAR AS PRACTICAL TO THE ABOVE DATES, OR AS FREEZE/PRECIPITATION CONDITIONS DETERMINE SERVICE NEED. 17. IRRIGATION SCHEDULING: THE IRRIGATION CONTROLLER CONTAINS A WATER BUDGET FEATURE. PERIODIC (WEEKLY) ADJUSTMENT OF THE WATER SCHEDULE IS INTENDED TO BE MADE VIA BUDGET ADJUSTMENT. RE -ADJUST WATERING DAYS AT 100 PERCENT BUDGET WHEN ADJUSTMENT EXCEEDS 30%. SET CONTROLLER FOR HIGHEST ETo WATER SCHEDULE, BASED ON PUBLISHED LOCAL EVAPOTRANSPIRATION DATA. SYSTEM HAS BEEN DESIGNED FOR 50 TO 80 PERCENT DISTRIBUTION UNIFORMITY. TURF ZONES SHOULD BE SCHEDULED FOR 100 PERCENT REPLACEMENT FACTOR ON A TYPICAL MINIMUM 3-DAY CYCLE. SHRUB ZONES SHOULD BE PROGRAMMED AT 40 TO 70 PERCENT OF THE MONTHLY TURF WATER REQUIREMENT ON A ONCE PER WEEK CYCLE. ALL WATERING IN EXCESS OF THE LOCAL ETo ("FIELD RECHARGE") SHALL BE COMPLETED DURING THE CONSTRUCTION PHASE WHILE THE CONTRACTOR IS ON THE JOB SITE. OVER WATERING OF LANDSCAPE DUE TO CONTROLLER SCHEDULING SHALL BE GROUNDS FOR CONTRACTOR TO REPAIR ANY RESULTANT DAMAGES AT HIS OWN EXPENSE. 18. SUBSTITUTION OF IRRIGATION MATERIAL/EQUIPMENT SHALL BE MADE ONLY UPON WRITTEN APPROVAL OF OWNER'S REPRESENTATIVE. 19. ALL TURF ZONES SHALL PASS A MINIMUM DISTRIBUTION UNIFORMITY OF 62 PERCENT, AS TESTED THROUGH AN IRRIGATION ASSOCIATION CERTIFIED WATER AUDIT. wrR- sa- w z z d z 0 a 2 SW 1/4 SECTION 18, TWP. 23 N., RGE. 5 E., W.M. DOUBLE CARSON GRADE LEVEL VALVE BOXES —WILKINS 600 PRIES. REDUCING VALVE AS NECESSARY T X S COUPLING: CONTR. TO PROVIDE THREADED FTG, AND CAP a ON DISCHARGE SIDE OF < METER. U / V SCH 80 /QUICK COUPLING PVC UNION VALVE (BLOWOUT) DOUBLE CHECK METER PER VALVE PER DETAIL CITY STANDARDS SCH 80 PVC UNION METER STOP PVC PER CITY STDS. • THE BACKFLOW DEVICE SHALL HAVE 6" MINIMUM UNOBSTRUCTED CLEARANCE ON ALL SIDES POINT OF CONNECTION (P.O.C.) DETAIL NOT TO SCALE 6"/12" POP AT SHRUBS 4" POP AT TURF SPRINKLER - FLUSH AT LAWN & FLUSH WITH MULCH LINE SPRINKLER - SCH 80 PVC NIPPLE LATERAL v a -� 'll - -- 6" CLR. OF OBSTRUCTION � = MANUFACTURER'S LIMITS PREVAIL FOR INSTALLATION AND ADJUSTMENTS. • PROVIDE SWING JOINT RISERS AT WALKS AND CURBS. 24" FLEXIBLE RISERS ACCEPTABLE ELSEWHERE. POP-UP RISER ASSEMBLY NOT TO SCALE MULCH CONDITION FINISH GRADE ADJUST ANGLE AT SLOPE COVERAGE CONDITIONS. 50% OF SLOPE ANGLE (TYP) _MARLEX 90' ELBOW MARLEX 90' ELBOW SCH 40 PVC TEE SxSxT (SIDE INLET ONLY) z U o Cyr o o TOPSOIL (FINISH / / �- o o cp o GRADE)/ PAVING SECTION PER CIVIL PLANS v COMPACTED BACKFILL q_O �C AT 90% DENSITY o( c (TOPSOIL BACKFILL) CV AT 95% DENSITY 0 00 o0o°oOC� (STRUCTURAL)) ` - �; o E (� o n PVC LATERAL 6" OFFSET O SLEEVE(S) (� 00(_ ,00 ALT. WIRE SLEEVE o�c c PVC MAINLINE a VALVE WIRING O o c m PIPE BED MATERIAL E TO BE CLEAN & FREE OF ROCK LARGER THAN 1 /2" _. * SLEEVING MATERIAL SHALL BE PVC CLASS 160(SDR-26). * DIMENSIONS ARE MIN. CLEARANCES. * ALL IRRIGATION SLEEVING TRENCH BACKFILL MATERIAL SHALL BE CLASS "B" OR BETTER (MAX. OF 10% PASSING NO.40 SCREEN) AND BE COMPACTED TO MIN. 95% OPTIMUM DENSITY PER ASTM D-1557-70 (MODIFIED PROCTOR) SLEEVE/TRENCHING DETAIL NOT TO SCALE a ZD FINISH "' GRADE ZE SCH 80 — NIPPLE SCH 80 SXT 100 90' ELBOW o SCH 80 NIPPLE WIRE WITH WATERPROOF WIRE CONNECTOR __- PLASTIC CONTROL VALVE BOX WITH COVER (10" DIA.x12" MIN.) PVC LATERAL TO SPRINKLERS � ` c` 'C 6 JO may_ PVC SCH 80 NIPPLE O O E �O E O AND FEMALE ADAPTOR o BOO o J` REMOTE CONTROL VALVE; BODY CLEAR OF SUMP v PVC MAINLINE 1 C.F. 7/8" GRAVEL SUMP MAIN LINE FITTING NOTES: SCH 40 SLIP TEE -PROVIDE EXTRA COILS (18") OF EACH WIRE IN VALVE BOX -TAPE WIRE TOGETHER EVERY 20 FT. -MIN. 6" DEPTH, 7/8" WASHED GRAVEL UNDER EACH VALVE -COMPACT SOIL AROUND VALVE BOX -USE TEFLON OR FLOWABLE SEALANT IN ALL THREADED FITTINGS, PER MANUFACTURES SPECS. REMOTE CONTROL VALVE NOT TO SCALE EQ EQ DOUBLE GRADE LEVEL BOXES -- -- SIZE TO PERMIT 12" MIN. CLR. LD FROM WALLS TO TEST COCKS; j BOLT LOCK LID. WATER SERVICE DOUBLE CHECK VALVE (STATE APPROVED FROM METER ASSEMBLY) RESILIANT SEATED VALVES & ° TEST COCKS; INSTALL ASSEMBLY AS o ° ° SHOWN OR THE TEST COCKS IN HORIZONTAL IN ° POSITION, PER LOCAL REQUIREMENTS. ° OUT PVC MAINLINE PER PLAN W U z m z 4 N -- L�i �, SCH 80 NIPPLE & FEMALE ADAPTER UNION AT EACH SIDE OF VALVE J SCH 80 PVC SCH 80 NIPPLE (TYP.) o o c Z BLOCK AS NECESSARY WITH BRICKS �O JOB PC OR CONC. BLOCKS AT BASE OF VAULT CV O EO L �O -� GRAVEL SUMP-7/8" WASHED GRAVEL O o O �� c O =1 ! n E` n r III--- NOTE: INSPECTION OF COMPLETED ASSEMBLY - '' -� BY CERTIFIED TESTER REQUIRED. CHECK VALVE ASSEMBLY NTS z m N FINISH GRADE PLASTIC VALVE BOX (10" DIA.) QUICK COUPLING VALVE 1 C.U. FT. 7/8" GRAVEL SUMP MARLEX ELL (TYP.) SCH 80 P.V.C. NIPPLE SCH 40 PVC SXSXT TEE QUICK COUPLING VALVE NOT TO SCALE pf TO? r STATE OF WASHINGTON REGISTERED 7E- 3,RUCE ARCHITECT McCRORY TE NO. 504 (VALID ONLY WITH SIGNATU CITY OF RENTON [DEPARTMENT OF= PUBLIC WORKS m J i N in x w 0 CA n V) 0 0 cv Ln N E v c 0 01 01 v rn r 0 Of a_ 0 i :W me s.. C G� O m r Y n e y N y o N � z O G� � `J 1