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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:
8. DO NOT DUMP OR STORE BULK MATERIALS NEAR STRUCTURES,
UTILITIES, WALKWAYS AND PAVEMENTS OR ON EXISTING TURF
AREAS OR PLANTS.
9. 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.
10. DO NOT MOVE OR HANDLE MATERIALS WHEN THEY ARE
SATURATED OR FROZEN.
PLANTING SOIL:
11. IN ALL PLANTING AREAS THE SOIL QUALITY SHOULD MEET
WASHINGTON STATE DEPARTMENT OF ECOLOGY BMPT5.13.
12. SUBGRADE TO BE SCARIFIED TO A DEPTH OF 12" AND TOPSOIL
PLACED IN LIFTS UP TO 6" DEPTH. FIRST LIFT TO BE MIXED INTO
SUBGRADE.
13. LANDSCAPE SHRUB AREAS SHALL BE DEEP TILLED TO A DEPTH OF
AT LEAST 12 INCHES TO FACILITATE DEEP WATER PENETRATION
AND SOIL OXYGENATION UNLESS WITHIN THE DRIP LINE OF
EXISTING TREES. DO NOT TILL WITHIN DRIPLINE OF EXISTING
TREES. SEE TREE RETENTION PLAN FOR LOCATION OF TREES TO
REMAIN AND TREE PROTECTION FENCING. SEE CIVIL PLANS FOR
TREATMENT AND SOIL DEPTH IN STORMWATER RETENTION AREAS
14. TOPSOIL TO BE ONE OF THE FOLLOWING:
14.1.CEDAR GROVE 3-WAY TOPSOIL MIX
14.2.STOCKPILED EXISTING TOPSOIL AMENDED BASED ON SOIL
TEST REPORT RECOMMENDATIONS TO A SANDY LOAM.
14.3.APPROVED ALTERNATE IMPORTED TOPSOIL MIX
14.4.ALL TOPSOIL TO BE MENDED WITH 4" OF COMPOST
15. FOR AREAS WITHIN 5' OF A TREE, PLACE TOPSOIL TO A 24" DEPTH.
16. FOR OTHER LANDSCAPE AREAS, PLACE TOPSOIL TO AN 8" DEPTH.
MULCHING.
17. 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
18. 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.
19. TOP OF MULCH SHALL BE FLUSH WITH FINISH GRADES. DO NOT
PLACE MULCH WITHIN 2 INCHES OF TRUNKS OR STEMS.
PREPARATION:
20. 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:
21. 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.
22. APPLY, ADD SOIL AMENDMENTS, AND MIX APPROXIMATELY HALF
THE THICKNESS OF TOPSOIL OVER PREPARED, LOOSENED
SUBGRADE. MIX THOROUGHLY INTO TOP 4 INCHES OF SUBGRADE
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SPREAD REMAINDER OF TOPSOIL.
23. 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.
24. 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.
PROTECTION:
25. 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.
26. 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:
27. 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.
28. 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:
29. PROTECT STRUCTURES, UTILITIES, SIDEWALKS, PAVEMENTS, AND
OTHER FACILITIES AND TURF AREAS AND EXISTING PLANTS FROM
DAMAGE CAUSED BY PLANTING OPERATIONS.
30. LAYOUT PLANTS AT LOCATIONS DIRECTED BY PLAN. STAKE
LOCATIONS OF INDIVIDUAL TREES AND SHRUBS AND OUTLINE
AREAS FOR MULTIPLE PLANTINGS.
31. 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.
32. 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.
33. 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.
34. PRUNING: PRUNE, THIN, AND SHAPE TREES, SHRUBS AND VINES AS
DIRECTED BY LANDSCAPE ARCHITECT.
35. 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.
36. 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:
37. SET OUT AND SPACE GROUND COVER AND PLANTS OTHER THAN
TREES, SHRUBS AND VINES AS INDICATED ON DRAWINGS IN EVEN
ROWS WITH TRIANGULAR SPACING.
38. USE PLANTING SOIL FOR BACKFILL.
39. DIG HOLES LARGE ENOUGH TO ALLOW SPREADING OF ROOTS.
40. WATER THOROUGHLY AFTER PLANTING, TAKING CARE NOT TO
COVER PLANT CROWNS WITH WET SOIL.
41. PROTECT PLANTS FROM HOT SUN AND WIND; REMOVE
PROTECTION IF PLANTS SHOW EVIDENCE OF RECOVERY FROM
TRANSPLANTING SHOCK.
REPAIR AND REPLACEMENT:
42. 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:
43. DURING PLANTING, KEEP ADJACENT PAVING AND CONSTRUCTION
CLEAN AND WORK AREA IN AN ORDERLY CONDITION.
44. REMOVE SURPLUS SOIL AND WASTE MATERIAL INCLUDING EXCESS
SUBSOIL, UNSUITABLE SOIL, TRASH, AND DEBRIS AND LEGALLY
DISPOSE OF THEM OFF OWNER'S PROPERTY.
45. PROTECT PLANTS FROM DAMAGE DUE TO LANDSCAPE
OPERATIONS AND OPERATIONS OF OTHER CONTRACTORS AND
TRADES. MAINTAIN PROTECTION DURING INSTALLATION AND
MAINTENANCE PERIODS.
46. 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:
47. 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:
48. 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
LANDSCAPE ARCHITECT. 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.
2" TACO MA S EATTL E
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62
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c'I PE A RG 253.383.2422 TEL 253.383.2572 FAX www.ahbl.com WEB NO. REVISION BY DATE
09/06/2024
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" 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 KING COUNTY
WATER DISTRICT #90 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 1 00'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 PROGRAMMED TO
CONTROLLER IN SEQUENCE AS SHOWN ON PLANS. RUN 2-WIRE
FROM THE CONTROLLER TO REMOTE CONTROLLED VALVES.
SPLICING WIRES TOGETHER OUTSIDE OF 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.
SPRINKLERS
23. ALL SPRINKLER HEADS SHALL BE SET PERPENDICULAR TO FINISH
GRADE OF THE AREA TO BE IRRIGATED UNLESS OTHERWISE
DESIGNATED ON THE PLANS.
24. 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.
25. 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
26. 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 4 PSI.
27. 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.
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
CURRENT PLANNING
A M n rg-a n ro-h 12r4 I
SURVEYED:
SCALE:
AS NOTED
VERTICAL: NAVD ,988
HORIZONTAL: NAD 1983/1991
DATUM
' CITY OF
RR
RENTON
Plonning/Building/Public Works Dept.
MAPLE HIGHLANDS
13818 152 N D AVE SE
RENTON WA 98059
SHEET SPECIFICATIONS
DATE
9 6 2024
9/ /
DESIGNED: M M
FIELDBOOK:
PAGE:
DRAWN: MM
ONE INCH
AT FULL SCALE
IF NOT ONE INCH
SCALE ACCORDINGLY
DRAWING NO.
L3.0
CHECKED: KK
APPR
APPROVED: CS
SHEET: OF:
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