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HomeMy WebLinkAboutW-383506MATERIALS 1. DUCTILE IRON PIPE PIPE SHALL BE NEW 1/16 -INCH CEMENT MORTAR -LINED, SEAL -COATED, THICKNESS CLASS 52 CONFORMING TO THE STANDARD SPECIFICATIONS 9-30.1(1) UNLESS NOTED ELSEWHERE ON THE PLANS. JOINTS SHALL BE PUSH - ON TYPE WITH RUBBER GASKET WHICH FITS INTO AN ANNULAR GROOVE. JOINTS AT VALVES OR FITTINGS MAY BE MECHANICAL JOINT OR FLANGED DEPENDING ON SPECIFICATION AND DRAWING REQUIREMENTS. PIPE SHALL BE US PIPE, ACIPCO, GRIFFEN OR PACIFIC STATES. 2. POLYETHYLENE ENCASEMENT ALL MAINS SHALL BE FULLY WRAPPED WITH 8 -MIL POLYETHYLENE PER ANSI/AWWA 0105. 3. FITTINGS FITTINGS FOR DUCTILE IRON PIPE SHALL CONFORM TO SECTION 9-30.2(1) OF THE STANDARD SPECIFICATIONS AND MAY BE FLANGED, MECHANICAL, OR PUSH -ON AS REQUIRED. RESTRAINED MECHANICAL JOINTS TO BE MEG -A - LUG, MANUFACTURED BY EBBA IRON, INC. FIELD-LOK GASKETS MAY BE USED IF SPECIFIED ON THE DRAWINGS OR DIRECTED BY THE ENGINEER. ONLY DI OR BRASS FITTINGS ALLOWED. DI FITTINGS SHALL BE TYLER, TYTON, OR HARCO. TRANSITION COUPLINGS AND SADDLES SHALL BE ROMAC OR SMITH & BLAIR. BRASS FITTINGS SHALL BE MUELLER OR FORD. ALL BRASS SHALL BE LEAD FREE. 4. FIRE HYDRANTS FIRE HYDRANTS SHALL BE CLOW MEDALLION, MUELLER CENTURION 250, OR M&H 929 AND CONFORM TO THE LATEST REVISION OF AWWA C-502, EXCEPT AS HEREIN MODIFIED. HYDRANT SHALL HAVE A MINIMUM OF 5 -1/4 -INCH MAIN VALVE OPENING AND A 6 -INCH MECHANICAL JOINT OUTLET. HYDRANT RUNS SHALL BE RESTRAINED WITH: A) FLANGED PIPE (SHORT RUNS ONLY), B) TWO 3/4 -INCH DIAMETER TIE RODS, OR C) MEG -A -LUGS. FURNISH A 6 -INCH AUXILIARY GATE VALVE FLANGED TO MAIN TEE WITH A VALVE BOX AND A RISER TO SUIT TRENCH DEPTH AT EACH INSTALLATION. HYDRANT SHALL BE FURNISHED WITH BREAK -OFF FLANGE ON BARREL AND BREAK -OFF COUPLING FOR THE STEM. THE HYDRANT SHALL BE FURNISHED WITH TWO 2 -1/2 -INCH HOSE CONNECTIONS WITH NATIONAL STANDARD THREADS AND ONE 4 -INCH PUMPER CONNECTION WITH SEATTLE THREADS, (#475) ALL PORT END CAPS SHALL BE 1 -1/4 -INCH. OPERATING NUTS SHALL BE 1 -1/4 -INCH AND SHALL TURN COUNTERCLOCKWISE TO OPEN. NOZZLES SHALL BE FITTED WITH RENEWABLE BRONZE NIPPLES LOCKED IN PLACE. ALL HYDRANTS SHALL BE PAINTED WITH TWO TOP COATS OF FARWEST PAINT CASE YELLOW PN# X3472. HYDRANTS SHALL BE EQUIPPED WITH A 4 -INCH SEATTLE THREAD (#475) BY 5 -INCH LOCKING STORZ ADAPTER MEETING OR EXCEEDING THE FOLLOWING SPECIFICATIONS: A. STORZ ADAPTER TO BE FORGED AND/OR EXTRUDED 6061-T6 ALUMINUM ALLOY, HARDCOAT ANODIZED. B. THREADED PORTION TO HAVE NO LUGS AND TWO SET SCREWS 180' APART. C. STORZ FACE TO BE METAL, NO GASKET TO WEATHER. D. STORZ CAP SHALL BE FORGED AND/QR EXTRUDED 6061-T6 ALUMINUM ALLOY WITH ANODIZED HARDCOAT AND SYNTHETIC MOLDED RUBBER GASKET. E. STORZ CAP TO BE ATTACHED TO HYDRANT ADAPTER WITH 1/8 -INCH COATED S.S. AIRCRAFT CABLE. F. CAP TO BE CONNECTED AND DISCONNECTED WITH STORZ WRENCHES ONLY. TORQUE TO BE SUFFICIENT SO CAP CANNOT BE REMOVED BY HAND. G. REMOVE ALL CHAINS. BLUE REFLECTIVE MARKERS SHALL BE TYPE 1 AS DESCRIBED IN SECTION 9-21.1 OF THE STANDARD SPECIFICATIONS, SHALL MEET THE REQUIREMENTS OF UFC SECTION 1001.8. THE HYDRANT SHALL BE STENCILED IN 2" HIGH LETTERS WITH THE DISTANCE TO THE FOOT VALVE IN FEET AND INCHES. 5. FIRE HYDRANT GUARD POSTS GUARD POSTS SHALL CONFORM TO STANDARD SPECIFICATIONS 9-30.5(6) AND BE BURIED TO A MINIMUM DEPTH OF 3 FEET. GUARD POSTS SHALL BE SET WITH THEIR TOPS AT THE SAME ELEVATION AS THE BONNET FLANGE OF THE HYDRANT. THE EXPOSED PORTION OF THE GUARD POSTS SHALL BE PAINTED WITH TWO TOP COATS OF FARWEST PAINT CASE YELLOW PN# X3472. GUARD POSTS SHALL BE INSTALLED WHERE DIRECTED BY ENGINEER OR DISTRICT. 8. CUT -IN CONNECTIONS ALL CUT -IN CONNECTIONS SHALL USE TWO SLEEVES. THE USE OF "WEDDING RINGS" WILL NOT BE ALLOWED. 7. WET TAPS TAPPING SLEEVE SHALL BE JGM 412 STEEL OR ROMAC "SST" STAINLESS STEEL SLEEVE WITH FULL COVERAGE RUBBER GASKET. VALVE SHALL BE A RESILIENT SEATED VALVE MADE FOR TAPPING, U.S. PIPE METROSEAL 250. SUBMITTALS REQUIRED FOR ALL WET TAP MATERIALS. NO WET TAP SHALL BE MADE WITHIN 2 -FEET OF THE END OF THE PIPE SEGMENT BEING TAPPED. BRICK BLOCKING SHALL BE USED UNDER ALL VALVES FOR SUPPORT AND FOAM RING SHALL BE USED AS CUSHION BETWEEN THE VALVE AND VALVE BOX. 8. GATE VALVES GATE VALVES SHALL BE BRONZE -MOUNTED RESILIENT SEAT WEDGING DEVICES AND SHALL MEET THE REQUIREMENTS OF AWWA C515-01 (DUCTILE IRON BODY AND BONNET) AND C550-05. VALVES SHALL HAVE AN 0 -RING STUFFING BOX, VALVE END CONNECTIONS MAY BE FLANGED, MECHANICAL JOINT OR PUSH -ON AS REQUIRED. VALVE STEM EXTENSIONS WITH PLATE WELDED TO OPERATING NUT WILL BE REQUIRED WHERE OPERATING NUT IS MORE THAN 4 FEET BELOW SURFACE. THE VALVE STEM EXTENSION TOP SHALL BE INSTALLED WITHIN 18 INCHES TO 24 INCHES BELOW FINISH GRADE. GATE VALVES SHALL BE KENNEDY, M&H, OR MUELLER. FOAM RING SHALL BE USED AS CUSHION BETWEEN THE VALVE AND VALVE BOX. INSTALL BLOW OFF ON EITHER SIDE OF ANY CLOSED VALVE OR ZONE VALVE, 9. AIRNAC AIR/VAC VALVE SHALL BE VALMATIC OR CRISPIN. 10. VALVE MARKER POSTS VALVE MARKER POSTS SHALL BE FURNISHED AND INSTALLED AS DIRECTED. MARKER POSTS SHALL BE TRIVIEW FLEX 66" BLUE, NO. P69254, WITH WARNING LABEL GIVING THE FOLLOWING INFORMATION: THE SIZE OF THE VALVE (E.G. 6 -INCH GATE VALVE), AND THE DISTANCE IN FEET AND INCHES TO THE VALVE. THE LETTER SIZE SHALL BE 2 -INCH HIGH. MARKERS SHALL BE PLACED AS DIRECTED BY THE ENGINEER. MARKERS SHALL BE SET SO AS TO LEAVE 18 INCHES EXPOSED ABOVE GRADE. 11. VALVE BOX CAST IRON VALVE BOX WITH LID MARKED "WATER", 4" DEEP TAPERED VALVE BOX COVER, VALVE BOX TOP AND VALVE BOX BOTTOM FROM EAST JORDAN GROUP INC. SHALL BE USED. EACH BOX SHALL BE ADJUSTED TO MATCH THE FINISH GRADE TO THE VALVE LOCATION. VALVE BOX COVERS SHALL BE PAINTED BLUE AS DESIGNATED BY THE WATER DISTRICT. ORIENT THE VALVE BOX SO THE "EARS" ARE SET THE SAME AS THE PIPE DIRECTION. VALVE BOXES SHALL BE RAISED TO GRADE FOR FINAL OVERLAY. NO RISERS ALLOWED. PROVIDE 4 --INCH THICK BY 4 -FOOT WIDE ASPHALT OR CONCRETE COLLAR AROUND VALVE BOX COVERS IN UNIMPROVED AREAS, LANDSCAPE AREAS AND EASEMENTS. FOAM RING SHALL BE USED AS CUSHION BETWEEN THE VALVE AND VALVE BOX. VALVE BOXES SHALL BE EAST JORDAN IRON WORKS (EJIW) 8555 VALVE BOX TOP WITH EJIW 6800 VALVE BOX COVER. 12. PIPE BEDDING MATERIAL 5/8 -INCH MINUS IMPORT BACKFILL SHALL BE USED WHEN NATIVE MATERIAL AT THE TRENCH BOTTOM IS STONY OR OTHERWISE NON-UNIFORM. 13. CRUSHED GRAVEL SURFACING CRUSHED GRAVEL SURFACING SHALL CONFORM TO THE REQUIREMENTS OF SECTION 9-03.9(3) OF THE STANDARD SPECIFICATIONS. 14. BACKFILL GRAVEL BACKFILL GRAVEL SHALL BE MADE WITH FINELY DIVIDED EARTH FREE FROM STONES LARGER THAN 2 ---INCHES IN DIAMETER. 15, ASPHALT CONCRETE PATCH WHERE ASPHALT CONCRETE PATCH IS SCHEDULED, THE EXISTING SURFACE SHALL BE CUT ON A NEAT LINE WITH A CUTTING DISC OR SIMILAR APPROVED TOOL PRIOR TO EXCAVATION. FOLLOWING BACKFILL AND COMPACTION OF THE TRENCH, AND IMMEDIATELY PRIOR TO RESURFACING, THE EDGES OF THE SURFACING SHALL BE RE -TRIMMED 6 -INCHES WIDER THAN THE EXCAVATION WITH STRAIGHT VERTICAL EDGES FREE FROM IRREGULARITIES. THE SUBGRADE SHALL BE CONSTRUCTED 5/8 --INCH MINUS CRUSHED SURFACING BASE COURSE PLACED TO A COMPACTED THICKNESS OF 6 -1/2 -INCHES. CLASS B ASPHALT CONCRETE SHALL THEN BE PLACED AND COMPACTED IN 2 -INCH LIFTS UP TO A MAXIMUM 4 -INCH THICKNESS TO MATCH THE EXISTING GRADE OF THE ORIGINAL SURFACE. ALL ASPHALT JOINTS SHALL BE SEALED WITH APPROVED SEALER. RESTORATION SHALL BE PER KING COUNTY OR CITY OF RENTON SPECIFICATIONS DEPENDING ON JURISDICTION. 15. SERVICE TAP SERVICE TAP 1-1/2" OR HIGHER SHALL BE IRON PIPE WITH ROMAC OR SMITH AND BLAIR DOUBLE STRAP SERVICE SADDLE. 17. NIPPLES HARCO DI NIPPLES AND FITTINGS MAY BE USED INSTEAD OF BRASS. GALVANIZED PIPING IS NOT ALLOWED. ONLY DI OR BRASS NIPPLES AND FITTINGS WILL BE ALLOWED. SURFACE RESTORATION ALL UNPAVED SURFACES SHALL BE RESTORED TO A CONDITION EQUAL TO THAT WHICH EXISTED PRIOR TO CONSTRUCTION. ALL TREES, SHRUBS, AND ANY IMPROVEMENTS SHALL BE SAVED, RELOCATED, OR REPLACED BY CONTRACTOR UNLESS SPECIFICALLY NOTED OTHERWISE ON THE DRAWINGS OR IN EASEMENT STIPULATIONS. PRE -CONSTRUCTION PHOTOGRAPHS SHALL BE USED TO APPROVE RESTORATION. �i i"AA11 IM BEFORE THE WORK SHALL BE CONSIDERED COMPLETE, THE DEVELOPER/CONTRACTOR SHALL CLEAN OUT DITCHES THAT MAY HAVE BEEN FILLED DURING THE WORK, REPLACE DAMAGED SURFACING, REMOVE SURPLUS MATERIALS AND TRASH AND DISPOSE OF BRUSH, REPAIR ALL DAMAGES, AND OTHERWISE LEAVE THE WORK SITE/AREA IN A NEAT, ORDERLY AND WORKMANLIKE CONDITION. DUST CONTROL SHALL BE PROVIDED DURING THE PROGRESS OF THE WORK AND DURING CLEANUP. THE CONTRACTOR SHALL KEEP EXISTING ROADS AND STREETS ADJACENT TO OR WITHIN THE LIMITS OF THE PROJECT OPEN TO AND MAINTAINED IN A GOOD AND SAFE CONDITION FOR TRAFFIC AT ALL TIMES PER THE DISTRICT, CITY, OR COUNTY REQUIREMENTS. THE CONTRACTOR SHALL REMOVE, ON A DAILY BASIS, ANY DEPOSITS OR DEBRIS THAT MAY HAVE ACCUMULATED ON THE ROADWAY SURFACE AS A RESULT OF CONSTRUCTION OPERATIONS. REMOVAL SHALL BE PERFORMED ON A MORE FREQUENT BASIS SHOULD THE DISTRICT DETERMINE THAT SUCH REMOVAL IS NECESSARY. LANDSCAPING LANDSCAPE RESTORATION SHALL BE PERFORMED BY CONTRACTOR USING THE SERVICES OF A QUALIFIED LANDSCAPE GARDENER WHOSE PRINCIPAL BUSINESS IS THIS TYPE OF WORK. WHERE ORNAMENTAL TREES AND SHRUBBERY ARE IN THE WORK AREA, THEY SHALL BE CAREFULLY REMOVED WITH THE EARTH SURROUNDING THEIR ROOTS WRAPPED IN BURLAP AND REPLANTED IN THEIR ORIGINAL POSITIONS WITHIN 4 DAYS. WORK MAY BE REQUIRED TO BE HALTED ELSEWHERE ON THE PROJECT TO ENSURE THIS WORK IS DONE IN A TIMELY MANNER. TREE AND SHRUBBERY REMOVAL AND TRANSPLANTING WILL BE DONE ONLY BY A LANDSCAPE GARDENER. ORNAMENTAL TREES AND SHRUBBERY MUST BE PROTECTED, BUT IF THROUGH SOME UNAVOIDABLE SITUATION SUCH TREES OR SHRUBBERY ARE DESTROYED OR DAMAGED, WHETHER IN PUBLIC OR PRIVATE PROPERTY, THEY SHALL BE REPLACED BY CONTRACTOR WITH MATERIAL OF EQUAL QUALITY AND NO ADDITIONAL COMPENSATION WILL BE ALLOWED FOR SUCH REPLACEMENT. CONTRACTOR SHALL TAKE EVERY PRECAUTION TO PROTECT EXISTING ORNAMENTAL TREES THAT ARE NOT REMOVED. PROTECTION MAY INCLUDE TYING BACK EXISTING LIMBS WHERE NECESSARY FOR WORK ROOM. SUCH TYING BACK SHALL BE DONE CAREFULLY TO AVOID BREAKAGE OR OTHER LIMB DAMAGE. NO LIMBS SHALL BE REMOVED OR TRIMMED WITHOUT THE WRITTEN PERMISSION OF THE PROPERTY OWNER, WITH A COPY OF SUCH PERMISSION GIVEN TO OWNER. IF SUCH REMOVAL OR TRIMMING IS APPROVED IN WRITING, IT SHALL BE PERFORMED IN A PROFESSIONAL MANNER BY A QUALIFIED LANDSCAPE GARDENER. FILTER FABRIC -GRATE �CATCH BASIN NOTE: MAY ONLY BE USED WHERE PONDING OF WATER ABOVE CB WILL NOT CAUSE TRAFFIC PROBLEMS AND WHERE OVERFLOW WILL NOT RESULT IN EROSION OF SLOPES. /_ GRATE 77 OVERFLOW CB INSERT FILTER MEDIA POROUS__77 BOTTOM CATCH BASIN INSERT SHALL HAVE 0.5 C.F. MIN STORAGE VOLUME, THE MEANS TO DEWATER STORED SEDIMENT, AN OVERFLOW, AND BE EASILY MAINTAINED. CB PROTECTION DETAIL. N TS EROSION CONTROL CONTRACTOR SHALL EXERCISE ALL NECESSARY PRECAUTIONS THROUGHOUT THE LIFE OF THE CONTRACT TO PREVENT POLLUTION, EROSION, SILTATION AND DAMAGE TO ANY WATER COURSES. CONTRACTOR SHALL PREVENT SLOUGHING AND RAVELING OF CUT SLOPES AND NATURAL SLOPES THAT ARE DISTURBED. SURFACE RUNOFF SHALL BE PREVENTED FROM FLOWING INTO EXCAVATIONS BY USING CURBS, BERMS, DRAINAGE DITCHES, SWALES OR OTHER APPROVED METHODS. MANAGEMENT OF WATER PUMPED FROM EXCAVATIONS AND FLOWING FROM DISTURBED AREAS DURING CONSTRUCTION IS THE RESPONSIBILITY OF THE CONTRACTOR. TEMPORARY EROSION PROTECTION SHALL BE USED AND MAINTAINED DURING CONSTRUCTION TO PROTECT SLOPE SURFACES, ADJACENT AREAS AND RECEIVING WATERS. AS TEMPORARY EROSION PROTECTION, STRAW, JUTE MATTER, VISQUEEN SHEETING OR OTHER APPROVED FORMS OF GROUND COVER SHALL BE USED ON ALL AREAS DISTURBED BY CONSTRUCTION. SLOPED SURFACES SHALL BE RESTORED SO THAT SURFACE RUNOFF DOES NOT BECOME CHANNELED OR FLOW ALONG THE WATER LINE ALIGNMENT, TO PROMOTE REVEGETATION, DISTURBED AREAS SHALL BE COVERED WITH 2 TO 3 -INCHES OF VEGETATIVE SOIL SUCH AS THE STRIPPED FOREST DUFF AND ORGANIC SOIL, OR IMPORTED TOPSOIL. THE VEGETATIVE SOIL SHALL BE TRACKED IN PLACE WITH THE EQUIPMENT RUNNING PERPENDICULAR TO THE SLOPE CONTOURS SO THAT THE TRUCK GROUSER MARKS PROVIDE A TEXTURE TO HELP RESIST EROSION. THEREAFTER, ALL DISTURBED AREAS SHALL BE HYDROSEEDED. IN ORDER TO EFFECTIVELY CONTROL POLLUTION, EROSION, RUN-OFF AND RELATED DAMAGE, CONTRACTOR SHALL SUBMIT TO ENGINEER FOR REVIEW AND APPROVAL AND PRIOR TO COMMENCING CONSTRUCTION A WRITTEN PLAN FOR PERFORMING ITEMS OF TEMPORARY WORK INCLUDING BUT NOT LIMITED TO, THE FOLLOWING: CONSTRUCTING DITCHES, SANDBAG BERMS, CULVERTS, SILT FENCES, ETC., TO CONTROL SURFACE WATER. PROTECTING SLOPES BY COVERING OR BY OTHER MEANS UNTIL PERMANENT EROSION CONTROL MEASURES ARE EFFECTIVE. TEMPORARY SHORING OF TRENCH EXCAVATIONS. IN ADDITION, CONTRACTOR, AS A MINIMUM, SHALL: NOT ALLOW DISCHARGE OF GROUND AND/OR SURFACE WATERS FROM PIT SITES OR TRENCH EXCAVATIONS TO THE ADJACENT WETLANDS OR STREAMS, IF THE WATER TO BE DISCHARGED CONTAINS SILT OR OTHER FOREIGN MATERIALS. NOT ALLOW DISCHARGES FROM PIT OR TRENCH EXCAVATIONS TO INCREASE THE EXISTING TURBIDITY OF THE RECEIVING WATERS. TAKE NECESSARY STEPS TO CONTROL DRAINAGE AND/OR EROSION FROM THE CONSTRUCTION AREA TO MINIMIZE SILT AND SEDIMENT POLLUTION OF ADJACENT WETLANDS AND STREAMS. WHEN THE TEMPORARY CONTROL FACILITIES ARE NO LONGER NEEDED, THEY SHALL BE REMOVED AND THE AREAS RESTORED TO A CONDITION BETTER THAN OR EQUAL TO THEIR ORIGINAL CONDITION. IN THE EVENT THAT A SUSPENSION OF WORK IS ORDERED FOR AN EXTENDED PERIOD OF TIME, CONTRACTOR SHALL TAKE ALL ACTION NECESSARY TO CONTROL EROSION, POLLUTION AND RUN-OFF DURING THE SHUTDOWN PERIOD. RESTORATION WITHIN KING COUNTY: RESTORATION SHALL BE PER KCC 16.82, KING COUNTY GRADING PERMIT CONDITIONS, AND AS DIRECTED BY THE KING COUNTY INSPECTOR. WITHIN CITY OF RENTON: RESTORATION SHALL BE PER CITY OF RENTON UTILITY PERMIT OR CONSTRUCTION STANDARDS. LAWN (CULTIVATED IN AREAS WHERE EXISTING LAWNS ARE DISTURBED, THE LAWNS SHALL BE REPLACED WITH A MINIMUM OF 4 -- INCHES OF NEW TOPSOIL AND EITHER EXISTING OR NEW SOD TO MATCH THE REMOVED SOD. RESEEDING WILL NOT BE ALLOWED. LAWN (UNCULTIVATED), PASTURE OR VACANT LAND UNCULTIVATED LAWNS, PASTURE, AND VACANT LAND SHALL BE RESTORED WITH A PASTURE GRASS IN ADDITION TO THE PROTECTION, RESTORATION, OR REPLACEMENT OF ANY IMPROVEMENTS OR TREES OTHERWISE CALLED FOR. DISTURBED AREAS SHALL NOT BE LEFT UNPROTECTED FOR LONG PERIODS. TEMPORARY SEEDING, COVERING, OR OTHER PROTECTION SHALL BE USED AS REQUIRED. PREVIOUSLY ESTABLISHED GRADES CONFORMING TO THE REQUIREMENTS OF THE DRAWINGS SHALL BE MAINTAINED IN A TRUE AND EVEN CONDITION. IF NECESSARY, REPAIRS SHALL BE MADE BEFORE SEEDING. THE SURFACE TO BE SEEDED SHALL BE CLEARED OF STONES OR OTHER DEBRIS LARGER THAN 1 -INCH. THE TOP 4 -INCHES SHALL BE CULTIVATED BY RAKING OR ROTOTILLING AFTER ALL COMPACTION AND PRIOR TO SEEDING. THE SURFACE SHALL BE APPROVED BY THE ENGINEER BEFORE BEGINNING SEEDING OPERATIONS. SEED MIX, FERTILIZER, AND MULCH SHALL BE HYDRO SEEDED WITH APPROPRIATE EQUIPMENT UPON APPROVAL OF THE SEED BED. APPROPRIATE QUANTITIES OF SEED, FERTILIZER AND MULCH SHALL BE COMBINED WITH THE PROPER AMOUNTS OF WATER TO ENSURE THE UNIFORM COAT SPRAYED ON THE SOIL ACCOMMODATES THE FOLLOWING RATES: SEED MIX: 40% PERENNIAL RYEGRASS 10% WHITE CLOVER 30% FESCUE 20% RED CREEPING FESCUE APPLY AT THE RATE OF 100 POUNDS PER ACRE. MULCH: SILVA-FIBER MULCH APPLIED AT FROM 1,500 POUNDS TO 2,000 POUNDS PER ACRE. FERTILIZER: COMMERCIAL MIX 10/20/20 OF NITRATE, PHOSPHATE, AND POTASH APPLIED AT RATE OF 450 POUNDS PER ACRE. METHOD OF APPLICATION AND PROPORTIONS OF SEED MIX MAY BE REVISED TO SUIT TYPE OF SOIL AND TIME OF YEAR, PROVIDED PRIOR APPROVAL IS GIVEN BY ENGINEER. CONTRACTOR SHALL PROTECT AND MAINTAIN NEWLY SEEDED AREAS. WHERE SEEDED AREAS FAIL TO DEVELOP AFTER NORMAL ALLOWANCE FOR GERMINATION, CONTRACTOR SHALL RE -SEED, W-383506 R-383519 WATER DISTRICT N0. 90 APPROVED CONSTRUCTION L:A J DRAWINGS: DATE: ;,I 0 n z c p 9 m III 0 ti • o oo Cn m n cl- � m CD Z a � W > wo Q� i Wa r w Q m z° r clx co I 4 0 co CD o z L� z C\j Q � o o w o z 0 z oE CD U � U N � c: m � � o co 00 um _000 mL m w C-4 Z -- a v o o VwAmw 0 C; d a LLJ cr � cQ)n z O Q 0 z o 0 10 Z w 0� �.�..J •� < Lid 0 U) Lli < co Z00-0.LL O .�.. ,s co < j LLJ z> > co w Ll. BASE MAP B_2 SHEET 5 OF 5 DRA WING ;,I 0 n z c p 9 i m III • o oo Cn m n 7) CD Z a � W > i III • o oo Cn z oo un l CD Z a � W i Wa r C3 m III o z N O � >� i r C3 m