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HomeMy WebLinkAboutSDP200800100 Plan - Approved 2009-03-31RIVANNA WATER &SEWER AUTHORITY CITY OF CHARLOTTESVILLE, VIRGINIA 4 MOORES CREEK WASTEWATER TREATMENT PLANT NUTRIENT REMOVAL IMPROVEMENTS RFB NO. 275 MARCH 2009 VICINITY MAP RONALD I. TAYLOR Lie. No.24649 HAZEN AND SAWYER ps �C,ti$ Environmental Engineers & Scientists ZONAL 4011 WestChose Blvd, Raleigh, North Carolina 27607 [A APPROVALS DATE DEPARTMENT OF COMMUNITY DEVELOAMENT PLANNER/ZONING .3t ip ENGINEER INSPECTIONS ta ARB DEPARTMENT OF FIRE RESCUE p3.f3 ALBEMARLE COUNTY SERVICE &UTHORITY �jtM� 3 iL u VIRGINIA DEPARMENT OF TRANSPORTATION HEALTH DEPARTMENT X M 0 II SCUM INCINERATOR BUIUNNG I ,--------------- IIP --------- --"— \ o AERATOR I cnr EXISTING ENGINEERING OFFICES TO BE RELOCATED. AERAnaR BASIN x SEE SHEET C19. (700) 9 j �n. AERATON BASIN 3 (300) B 1�1�YP II AERATON BASIN4 (3G0) .._. .._._. CURB INLET SEDIMENT CONTROL,T 0227002 EXISTING GENERATOR TRAILER TO BE RELOCATED. SEE SHEET EC3. DESIGNED MOB���Ni;rrr 41" DRAWN MBD '�`� o RONALD L CHECKED TAYLOR PROJ.ENGR. RLT I 'j-,% Lic. N0.24649 NO. I ISSUED FOR I DATE I BY I APPROVED P6.. R01 M Ss 9,. MNIP nN. "-EC SErww BASIN 1 (480) SETIDNG BASN 2 (480) N A LIMITS — �—x— --- x --- — —— x---- --2L== SLUD13E x -- SLUDGE PUMPING STATOR (420) O 50 SILT BAG YARD (INLET IP �I/ ° EROS ION i0NCONTROL, TYP��(//// —I r— ,� HAZENAND SAWYER J i N " Environmental Enpineerrs & Scientists Lie. No.43610 W� sy 4011 WestChase Boulevard, Suite 500 Raleigh, North Corolimo 27607 oA I-1 0 PRIMARY CLNt81ER 1 (200) w RIVANNA WATER & SEWER AUTHORITY CHARLOTTESVILLE, VIRGINIA MOORES CREEK WASTEWATER TREATMENT PLANT NUTRIENT REMOVAL IMPROVEMENTS SECONDARY CLARIFIER 1 (400) CONTROL, O \ MOORES CREEK LANE (PRIVATE) w PRIMARY CLARIFIER 2 (200) AND SUM PUMPING Err E313 ❑ NOTES: 1. INSTALLATION OF EROSION CONTROL MEASURES SHALL NOT OCCUR UNTIL A PRE—CONSTRUCTION MEETING HAS BEEN HELD WITH COUNTY OF ALBEMARLE INSPECTIONS DEPARTMENT. 2. INSTALL PERIMETER EROSION CONTROL MEASURES AS SHOWN ON THE CONTRACT DRAWINGS, INCLUDING TEMPORARY CONSTRUCTION ENTRANCE, TEMPORARY SEDIMENT TRAPS, AND TEMPORARY AND PERMANENT DIVERSION CHANNELS. CONSTRUCTION OR LAND DISTURBANCE ACTIVITIES MAY NOT BEGIN UNTIL ALL EROSION CONTROL MEASURES HAVE BEEN INSTALLED AROUND CONSTRUCTION AREAS AND AREAS INDICATED FOR CONTRACTOR LAYDOWN/STOCKPILE AREAS. IF CLEARING IS REQUIRED FOR INSTALLATION OF A GIVEN MEASURE, ALL OTHER MEASURES SHOWN SHALL BE INSTALLED FIRST. THE NECESSARY LAND REQUIRED FOR INSTALLATION OF THE GIVEN MEASURE MAY THEN BE CLEARED. 3. ONCE ALL TEMPORARY EROSION CONTROL MEASURES HAVE BEEN INSTALLED, THE SITE SHALL BE CLEARED AND GRUBBED, AS REQUIRED, WITHIN THE LIMITS OF DISTURBANCE AS SHOWN ON THE CONTRACT DRAWINGS. 4, ONCE CLEARING AND GRUBBING IS COMPLETE, TOPSOIL SHALL BE STRIPPED AND STOCKPILED ONSITE IN A LOCATION DESIGNATED BY THE OWNER OR ENGINEER. THE STOCKPILE SHALL HAVE A PERIMETER SILT FENCE INSTALLED AS DIRECTED BY THE ENGINEER AND SHALL BE SEEDED WITH TEMPORARY SEEDING MEASURES. THE EROSION CONTROL AND SEEDING MEASURES FOR THE STOCKPILE AREA SHALL BE MAINTAINED FOR THE DURATION OF CONSTRUCTION ACTIVITIES. 5. EARTHWORK EXCAVATION FOR THE DENITRIFICATION FILTERS AND SURROUNDING STRUCTURES, THE FILTER ROAD AND FILL OPERATIONS CAN BEGIN ONCE TOPSOIL HAS BEEN REMOVED AND STOCKPILED. 6. ALL PIPE WORK SHALL BE INSTALLED IN ACCORDANCE WITH STANDARD CONSTRUCTION TECHNIQUES. ONLY THE LENGTH OF TRENCH IN WHICH PIPE CAN BE INSTALLED IN ONE DAYS TIME SHALL BE OPEN AT ANY TIME, WITH SPOIL MATERIAL PLACED ON THE UPHILL SIDE OF THE TRENCH. PIPING SHALL BE CAPPED AT END OF EACH DAYS WORK TO PREVENT SEDIMENT FROM ENTERING. TRENCH SHALL BE BACKFILLED AT END OF EACH DAYS WORK AND DISTURBED AREA SEEDED WITH TEMPORARY SEEDING MEASURES IF APPROPRIATE. 7. EXCAVATION DEWATERING FLOWS SHALL PASS THROUGH SEDIMENT FILTERING DEVICE BEFORE DISCHARGE. �. 8. STORM DRAINAGE INLETS AND OUTLETS SHALL BE PROTECTED WITH APPROPRIATE EROSION CONTROL MEASURES AT ALL TIMES. TEMPORARY SEDIMENT TRAPS MAY BE REMOVED AS APPROVED ® BY THE ENGINEER ONCE AREAS HAVE BEEN STABILIZED. 9. TEMPORARY SEEDING MEASURES SHALL BE EMPLOYED AS SOON AS PRACTICAL IN PORTIONS OF THE SITE WHERE CONSTRUCTION ACTIVITIES HAVE TEMPORARILY OR PERMANENTLY CEASED, BUT IN NO CASE MORE THAN 21 DAYS AFTER WORK HAS CEASED. 10.ONCE ALL EARTHWORK AND CONSTRUCTION ACTIVITIES ARE COMPLETE, FINAL GRADING MAY BEGIN. 11. UPON COMPLETION OF FINAL GRADING, PERMANENT STABILIZATION, MULCHING AND FERTILIZING MEASURES SHALL BE EMPLOYED ON ALL DISTURBED AREAS AS PER SECTION 02910. VEGETATIVE GROUND COVER SHALL BE ESTABLISHED ON ALL DISTURBED AREAS WITHIN 15 WORKING DAYS OR 90 CALENDAR DAYS, WHICHEVER IS SHORTER. ALL EROSION CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL THE ENTIRE SITE HAS BEEN STABILIZED. EROSION CONTROL LEGEND 1 / SILT FENCE E72 INLET SEDIMENT CONTROL LIMITS OF DISTURBANCE fii���.�iy'p 5 CONSTRUCTION e b..n-1.'u DIVERSION DIKE SOIL STABILIZATION RM BLANKETS & MATTING EROSION CONTROL LABELS ---- SOIL STABILIZATION /M BLANKETS & MATTING CE CONSTRUCTION ENTRANCE DC DUST CONTROL DD TEMPORARY DIVERSION DIKE \ IP INLET PROTECTION PS PERMANENT SEEDING SF SILT FENCE SEDIMENT TRAP TEMPORARY SEEDING 30 15 0 30' SITE WORK THE SCALE BAR DATE ' MARCH 2009 SHOWN BELOW MEASURES ONE H&S JOB NUMBER 3.1037 CIVIL D� INCH LONG ON CONTRACT DRAWING PARTIAL SITE PLAN - PERIMETER EROSION & THE ORIGINAL NUMBER NUMBER DRAWING. SEDIMENT CONTROL PHASE 1 A EC1 SCAM INONE Am WLNNG 0227004 SEDIMENT LIMITS OF DISTURBANCE, TYP SI T FNCEyJY* f + 022700D + + + f + SOIL �TOCKPJW + +ARA+ .moi +,—+ Se8 + DC + + + _ + f + DIK POTR�APRV-DIVEpom f + 1� CEP + f + ++ + + + + } t + -1E PQi2AR`Y IVSIU DC \ © + + + + + DUCE, 'TYP + f GRAVEL CONSTRUCTION + 1' ENTRANCE, TYP \ i 0257701 � MUOM PUMPING STATION (420) a 3 CONSTRUCTIO 2 DEQ FINAL APPR 1 DEO REVIEW SUBh NO. ISSUED FOR RNA• 3101 fl,5v-SI,M W iIXI1.51-R,9N{C IF MDB DRAWN MDB CHECKED AMATON BASI I (JOU) RLT AQiANON BASN 2 (3001 AERATION RASN (300) AERATION BASIN 4 (300) CURB INLET SEDIMENT CONTROL, TYP 0227002 DC EXCAVATION SUPPORT SEE NOTE 14—\ RELOC TED NERATOR TRAI R DESIGNED MDB DRAWN MDB CHECKED PROJ.ENGR. RLT DATE I BY I APPROVED InoNCR ❑ BUIIOMG (>BO) RUMMY ClA nm 1 t x Tars f# SECONOMY CIMIRER 1 (4a0) LIMITS OF DISTURBANCE INLET SI OL, TYP 0 \ MOORES CREEK UNE (PRIVATE) PUARY OWIRR 2 (200) NOTES: 1. INSTALLATION OF EROSION CONTROL MEASURES SHALL NOT OCCUR UNTIL A PRE–CONSTRUCTION MEETING HAS BEEN HELD ,c WITH COUNTY OF ALBEMARLE INSPECTIONS DEPARTMENT. — 2. INSTALL PERIMETER EROSION CONTROL MEASURES AS SHOWN ON THE CONTRACT DRAWINGS, INCLUDING TEMPORARY CONSTRUCTION ENTRANCE, TEMPORARY SEDIMENT TRAPS, AND TEMPORARY AND PERMANENT DIVERSION CHANNELS. CONSTRUCTION OR LAND DISTURBANCE ACTIVITIES MAY NOT BEGIN UNTIL ALL EROSION CONTROL MEASURES HAVE BEEN INSTALLED AROUND CONSTRUCTION AREAS AND AREAS INDICATED FOR CONTRACTOR LAYDOWN/STOCKPILE AREAS. IF CLEARING IS REQUIRED FOR INSTALLATION OF A GIVEN MEASURE, ALL OTHER MEASURES SHOWN SHALL BE INSTALLED FIRST. THE NECESSARY LAND REQUIRED FOR INSTALLATION OF THE GIVEN MEASURE MAY THEN BE CLEARED. 3. ONCE ALL TEMPORARY EROSION CONTROL MEASURES HAVE BEEN INSTALLED, THE SITE SHALL BE CLEARED AND GRUBBED, AS REQUIRED, WITHIN THE LIMITS OF DISTURBANCE AS SHOWN ON THE CONTRACT DRAWINGS. 4. ONCE CLEARING AND GRUBBING IS COMPLETE, TOPSOIL SHALL BE STRIPPED AND STOCKPILED ONSITE IN A LOCATION DESIGNATED BY THE OWNER OR ENGINEER. THE STOCKPILE SHALL HAVE A PERIMETER SILT FENCE INSTALLED AS DIRECTED BY THE ENGINEER AND SHALL BE SEEDED NRH TEMPORARY SEEDING MEASURES. THE EROSION CONTROL AND SEEDING MEASURES FOR THE STOCKPILE AREA SHALL BE MAINTAINED FOR THE DURATION OF CONSTRUCTION ACTIVITIES. 5. EARTHWORK EXCAVATION FOR THE DENITRIFICATION FILTERS AND SURROUNDING STRUCTURES, THE FILTER ROAD AND FILL OPERATIONS CAN BEGIN ONCE TOPSOIL HAS BEEN REMOVED AND STOCKPILED. 6. ALL PIPE WORK SHALL BE INSTALLED IN ACCORDANCE WITH STANDARD CONSTRUCTION TECHNIQUES. ONLY THE LENGTH OF TRENCH IN WHICH PIPE CAN BE INSTALLED IN ONE DAYS TIME SHALL BE OPEN AT ANY TIME, WITH SPOIL MATERIAL PLACED ON THE UPHILL SIDE OF THE TRENCH. PIPING SHALL BE CAPPED AT END OF EACH DAYS WORK TO PREVENT SEDIMENT FROM ENTERING. TRENCH SHALL BE BACKFILLED AT END OF EACH DAYS WORK AND DISTURBED AREA SEEDED WITH TEMPORARY SEEDING MEASURES IF APPROPRIATE. 7. EXCAVATION DEWATERING FLOWS HALL PASS THROUGH SEDIMENT FILTERING DEVICE BEFORE DISCHARGE. 8. STORM DRAINAGE INLETS AND OUTLETS SHALL BE PROTECTED WITH APPROPRIATE EROSION CONTROL MEASURES AT ALL TIMES. TEMPORARY SEDIMENT TRAPS MAY BE REMOVED AS APPROVED BY THE ENGINEER ONCE AREAS HAVE BEEN STABILIZED. 9. TEMPORARY SEEDING MEASURES SHALL BE EMPLOYED AS SOON AS PRACTICAL IN PORTIONS OF THE SITE WHERE CONSTRUCTION ACTIVITIES HAVE TEMPORARILY OR PERMANENTLY CEASED, BUT IN NO CASE MORE THAN 21 DAYS AFTER WORK HAS CEASED. 10.ONCE ALL EARTHWORK AND CONSTRUCTION ACTIVITIES ARE COMPLETE, FINAL GRADING MAY BEGIN. 11.EROSION CONTROL PRACTICES SHALL BE OBSERVED AT ALL TIMES ON SITE DURING CONSTRUCTION. ALL UNDERGROUND UTILITY WORK HALL FOLLOW STANDARD E&S CONTROL PRACTICES, AND SHALL BE COORDINATED WITH ON–SITE INSPECTOR PRIOR TO INSTALLATION. 12.UPON COMPLETION OF FINAL GRADING, PERMANENT STABILIZATION, MULCHING AND FERTILIZING MEASURES SHALL BE EMPLOYED ON ALL DISTURBED AREAS AS PER SECTION 02910. VEGETATIVE GROUND COVER SHALL BE ESTABLISHED ON ALL DISTURBED AREAS WITHIN 15 WORKING DAYS OR 90 CALENDAR DAYS, WHICHEVER IS SHORTER. ALL EROSION CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL THE ENTIRE SITE HAS BEEN STABILIZED. 13.GRAVEL ACCESS ROAD TO BE CONSTRUCTED AND IN SERVICE PRIOR TO DEMOLITION OF MOORES CREEK LANE. ALL EROSION CONTROL MEASURES, AS PROPOSED ON THIS SHEET, SHALL BE INSTALLED PRIOR TO ANY LAND DISTURBANCE FOR GRAVEL 100 ROAD. FOR FINAL GRADING OF ACCESS ROAD, SEE SHEETS 016, C17 AND C18. FOR PROFILE OF ACCESS ROAD, SEE SHEET C33. / 14.SELECTION AND DESIGN OF PLANS FOR EXCAVATION SUPPORT SHALL TOTALLY BE THE RESPONSIBILITY OF THE CONTRACTOR. CONTRACTOR SHALL SUBMIT DESIGN DRAWINGS AND COMPUTATIONS FOR ALL EXCAVATION SUPPORT TO THE C ENGINEER FOR REVIEW. ALL DRAWINGS AND COMPUTATIONS SHALL BE SEALED BY A CURRENTLY LICENSED ENGNEER IN THE COMMONWEALTH OF VIRGINIA. SEE SPECIFICATION SECTION 02200. r T � [ALTHa yf�� �Fp LTH yf� I SITE WORK �T'�,� SHOWN BELOW H E JOB 31037 2009 RIVANNA WATER & SEWER AUTHORITY q7 THE SCALE RONALD L. 9 9 HAZENAND ISAwt CHARLOTTESVILLE, VIRGINIA CIVIL MEASURES ONE NUMBER 31037 TAYLOR Environmental Enlilnee�rs & Scientists INCH LONG ON CONTRACT DRAWING [Ac. N0.24849 ��mv�. No. to w PARTIAL SITE PLAN - PERIMETER EROSION & THE ORIGINAL NUMBER NUMBER W w �oh 4011 WestChose Boulevoord, Sate 500 MOORES CREEK WASTEWATER TREATMENT PLANT DRAWING. InA,AT FG�� "a"lOneT. E1�6 Raleigh, North Caroliino 27607 NUTRIENT REMOVAL IMPROVEMENTS SEDIMENT CONTROL PHASE 2 A EC3 ❑- MOORES CREEK LANE (PRNATE) CURB INLET SEDIMENT CONTROL, TYP 0227002 LEI IEL ACCESS ROAD NOTE 13 0 LIMITS OF L7 E GRAVEL CONSTRUCTION ENTRANCE, TYP 0257701 � M NOTES: Fp0, CCUR 1 INSTALLATION OF EROSION CONTROL MEASURES SHALL O A PRE–CONSTRUCTION MEETING HAS BEEN \ HELD � WITH COUNTY OF ALBEMARLE INSPECTIONS DEPARTMENT. 2. INSTALL PERIMETER EROSION CONTROL MEASURES AS SHOWN ON THE CONTRACT DRAWINGS, INCLUDING TEMPORARY CONSTRUCTION ENTRANCE, TEMPORARY SEDIMENT TRAPS, AND TEMPORARY AND PERMANENT DIVERSION CHANNELS. CONSTRUCTION OR LAND DISTURBANCE ACTIVITIES MAY NOT BEGIN UNTIL ALL EROSION CONTROL MEASURES HAVE BEEN INSTALLED AROUND CONSTRUCTION AREAS AND AREAS INDICATED FOR CONTRACTOR LAYDOWN/STOCKPILE AREAS. IF CLEARING IS REQUIRED FOR INSTALLATION OF A GIVEN MEASURE, ALL OTHER MEASURES SHOWN SHALL BE INSTALLED FIRST. THE NECESSARY LAND REQUIRED FOR INSTALLATION OF THE GIVEN MEASURE MAY THEN BE CLEARED. \ \\ 3. ONCE ALL TEMPORARY EROSION CONTROL MEASURES HAVE \\4.6 BEEN INSTALLED, THE SITE SHALL BE CLEARED AND GRUBBED, AS REQUIRED, WITHIN THE LIMITS OF DISTURBANCE AS SHOWN ON THE CONTRACT DRAWINGS. 4. ONCE CLEARING AND GRUBBING IS COMPLETE, TOPSOIL SHALL IP BE STRIPPED AND STOCKPILED ONSITE IN A LOCATION \ DESIGNATED BY THE OWNER OR ENGINEER. THE STOCKPILE IP SHALL HAVE A PERIMETER SILT FENCE INSTALLED AS SD DIRECTED BY THE ENGINEER AND SHALL BE SEEDED WITH \ TEMPORARY SEEDING MEASURES. THE EROSION CONTROL AND C SEEDING MEASURES FOR THE STOCKPILE AREA SHALL BE \ MAINTAINED FOR THE DURATION OF CONSTRUCTION ACTIVITIES. \\ 5. EARTHWORK EXCAVATION FOR THE DENITRIFICATION FILTERS AND SURROUNDING STRUCTURES, THE FILTER ROAD AND FILL ------- OPERATIONS CAN BEGIN ONCE TOPSOIL HAS BEEN REMOVED AND STOCKPILED. 6. ALL PIPE WORK SHALL BE INSTALLED IN ACCORDANCE WITH STANDARD CONSTRUCTION TECHNIQUES. ONLY THE LENGTH OF TRENCH IN WHICH PIPE CAN BE INSTALLED IN ONE DAYS TIME SHALL BE OPEN AT ANY TIME, WITH SPOIL MATERIAL PLACED ON THE UPHILL SIDE OF THE TRENCH. PIPING SHALL BE CAPPED AT END OF EACH DAYS WORK TO PREVENT SEDIMENT FROM ENTERING. TRENCH SHALL BE BACKFILLED AT END OF EACH DAYS WORK AND DISTURBED AREA SEEDED WITH TEMPORARY SEEDING MEASURES IF APPROPRIATE. 7. EXCAVATION DEWATERING FLOWS SHALL PASS THROUGH SEDIMENT FILTERING DEVICE BEFORE DISCHARGE. 8. STORM DRAINAGE INLETS AND OUTLETS SHALL BE PROTECTED WITH APPROPRIATE EROSION CONTROL MEASURES AT ALL TIMES. TEMPORARY SEDIMENT TRAPS MAY BE REMOVED AS APPROVED BY THE ENGINEER ONCE AREAS HAVE BEEN STABILIZED. IP 9. TEMPORARY SEEDING MEASURES SHALL BE EMPLOYED AS -� SOON AS PRACTICAL IN PORTIONS OF THE SITE WHERE CONSTRUCTION ACTIVITIES HAVE TEMPORARILY OR PERMANENTLY CEASED, BUT IN NO CASE MORE THAN 21 l DAYS AFTER WORK HAS CEASED. J 10.ONCE ALL EARTHWORK AND CONSTRUCTION ACTIVITIES ARE // COMPLETE, FINAL GRADING MAY BEGIN. _ 1LEROSION CONTROL PRACTICES SHALL BE OBSERVED AT ALL TIMES ON SITE DURING CONSTRUCTION. ALL UNDERGROUND UTILITY WORK SHALL FOLLOW STANDARD E&S CONTROL -� PRACTICES, AND SHALL BE COORDINATED WITH ON–SITE INSPECTOR PRIOR TO INSTALLATION. ❑❑ a 1 \� 12.UPON COMPLETION OF FINAL GRADING, PERMANENT STABILIZATION, MULCHING AND FERTILIZING MEASURES SHALL --+ BE EMPLOYED ON ALL DISTURBED AREAS AS PER SECTION I 02910. VEGETATIVE GROUND COVER SHALL BE ESTABLISHED ON ALL DISTURBED AREAS WITHIN 15 WORKING DAYS OR 90 T A/C CALENDAR DAYS, WHICHEVER IS SHORTER. ALL EROSION CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL THE �� • ENTIRE SITE HAS BEEN STABILIZED. Ar 13.GRAVEL ACCESS ROAD TO BE CONSTRUCTED AND IN SERVICE I 1 PRIOR TO DEMOLITION OF MOORES CREEK LANE. ALL EROSION CONTROL MEASURES, AS PROPOSED ON THIS SHEET, SHALL BE INSTALLED PRIOR TO ANY LAND DISTURBANCE FOR GRAVEL ROAD. FOR FINAL GRADING OF ACCESS ROAD, SEE SHEETS C16, C17 AND C18. FOR PROFILE OF ACCESS ROAD, SEE SHEET C33. N LJ 30 15 0 30' DESIGNED MDB DRAWN MDB CHECKED PROJ.ENGR. RLT PITH �, ��NLTFT G I U o RONALD L. O A TAYLOR AN ON o Lic. No.24849 W� Lic. N 3810 ;q i0 F,$Gl I -NAL E�Gl NAL HAZENAND SAWYER Environmental Engineelrs & Scientists 4011 WestChase Boulevmrd, Suite 500 Raleigh. North Caroliino 27607 9 RIVANNA WATER & SEWER AUTHORITY CHARLOTTESVILLE, VIRGINIA SITE WORK 4k CIVIL b13'� PARTIAL SITE PLAN - PERIMETER EROSION & SEDIMENT CONTROL PHASE 2 THE SCALE BAR SHOWN BELOW MEASURES ONE INCH LONG ON THE ORIGINAL DRAWING. DATE MARCH 2009 N&s JOB 31037 NUMBER CONTRACT NUMBER A DRAWING NUMBER EC4 MOORES CREEK WASTEWATER TREATMENT PLANT NUTRIENT REMOVAL IMPROVEMENTS 3 CONSTRUCTION 2-2009 RLT 2 DEQ FINAL APPROVAL 2-2009 RLT 1 DEQ REVIEW SUBMITTAL B-2006 RLr NO. ISSUED FOR DATE BY APPROVED 2 C7 n NOTES: 1. CONTRACTOR TO REMOVE AND REPLACE YARD STEPS AS NECESSARY FOR INSTALLATION OF UNDERGROUND UTILITY WORK AS SHOWN ON SHEET MIS. PLAN KE C70 C13 C14 C1 Cr2 C20 C16 C17 C18 I C19 20 10 0 20' 1'=20'_0• DESIGNED MDB DRAWN MOB CHECKED PROJ.ENGR. RLT �v.pLTH Qy L ALTH ` r� l�� .b � RONALD L v � R 9 TAYLOR Lic. No.24649 W c. No.43610 O� 4� c� �' ,I Gti1y 1y3`�' °A'AL ZONAL E ENAND �AVVYER Environmental Engineerrs & Scientists 4011 WestChase Boulevarrd, site soo Raleigh, North Carolidno 27607 RIVANNA WATER &SEWER AUTHORITY CHARLOTTESVILLE, VIRGINIA 7�1' V I SITE WORK S�" ,�( CIVIL PARTIAL SITE PLAN - FINAL GRADING, AND EROSION CONTROL THE SCALE BAR SHOWN BELOW MEASURES ONE INCH LONG ON THE ORIGINAL DRAWING. DATE MARCH 2009 & S JOB 31037 N NUMBER CONTRACT NUMBER A DRAWING NUMBER C15 MOORES CREEK WASTEWATER TREATMENT PLANT NUTRIENT REMOVAL IMPROVEMENTS 3 CONSTRUCTION 2-2009 RLT 2 DEQ FINAL APPROVAL 2-2009 RLT 1 DEO REVIEW SUBMITTAL 8-2008 RLT NO. ISSUED FOR DATE BY W- YMR CMu.SY-¢ APPROVED I HOLDING POND NO 1 4 \ A SITE = 30, HOLDING POND NO 2 WATER CANNON, TYR Y. IP SILTAG YARD INI EROS CONTROL, O REFER TO DRAWING M20 FOR PIPING DETAILS ALL PIPE WORK SHALL BE INSTALLED IN ACCORDANCE WITH STANDARD CONSTRUCTION TECHNIQUES. ONLY THE LENGTH OF TRENCH IN WHICH PIPE CAN BE INSTALLED IN ONE DAYS TIME SHALL BE OPEN AT ANY TIME, WITH SPOIL MATERIAL PLACED ON THE UPHILL SIDE OF THE TRENCH. PIPING SHALL BE CAPPED AT END OF EACH DAYS WORK TO PREVENT SEDIMENT FROM ENTERING. TRENCH SHALL BE BACKFILLED AT END OF EACH DAYS WORK AND DISTURBED ARE SEEDED WITH TEMPORARY SEEDING MEASURES IF APPROPRIATE. PLAN N KEY 30 15 0 30, —0' DESIGNED CTJ DRAWN DAD CHECKED pROJ.ENGR. RLT v QS+G EpLTH qI,G� ALD L ✓ O r 9 U N6 T CTAYIDR o.24e49 Lie. No.4 10 ,4011 �sv O� ��v 3; ALGti AL ffiZE ANDSAWlrill Environmental Engineelrs & Scientists WestChase Boulevmrd, Suite 500 Raleigh, North Carolling 2�sm RIVANNA WATER &SEWER AUTHORITY CHARLOTTESVILLE, VIRGINIA 'K SITE WORK 3\ PARTIAL SITE PLAN - PROCESS YARD PIPING THE SCALE BAR SHOWN BELOW MEASURES ONE INCH LONG ONCIVIL THE ORIGINAL DRAWING. DATE MARCH 2009 H&S JOB NUMBER31037 CONTRACT NUMBER A DRA'MNG NUMBER C20 MOORES CREEK WASTEWATER TREATMENT PLANT2 NUTRIENT REMOVAL IMPROVEMENTS 3 CONSTRUCT ON 2—zoos RLT DEQFl AL APPROVAL 2-2009 RLT 1 DEQ R EW SUBMITTAL 8—zoos RLT N0, ISSUED FOR DATE BY APPROVED �� r, NO. ISSUED FOR EROSION AND SEDIMENT CONTROL PLAN NOTES 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WI BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625 -02 -OTO EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FtRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IIN AREAS OTHER THAN INDICATED ON THESE PLANS INCLUDING, BUT NOT LIMITED TO, OFF-SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE COMER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLAIION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATIONtl AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED '.SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE OEVELCDPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMIPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTFROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF PRODUCING RAINFALL EVENT. ANY NECESSAR2Y REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHiALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED), DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPRCOVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUIBBISH, AND OTHER DEBRIS. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WTFHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COWPUANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTMAAL-TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:00AM TO 9:00PM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTHED IN A SAFE MANNER THAT MAINTAINS LATERAL SUPPORT, IN ORDER TO MINIMIZE ANY HAZARD TO PERQSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET I BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSALIL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLCASLE ALL EROSION CONTROL MEASURES REWIRED BY THIS P LAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEMING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/f000SF, INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 18O.BS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5R PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECTr TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED IWEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STWND OF GRASS. SILT FENCE AND DIVERSION DYKES YMICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEAISURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. NOTES FOR STORMWATER MANAGEMENT PLANS I. ALL DAMS AND CONSTRUCTED FILL TO BE WITHIN 95% OF MAXIMUM DRY DENSITY AND 2% OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL TO BE APPROVED BY A GEOTECHNICAL ENGINEER. A GEOTECHNICAL ENGINEER IS TO BE PRESENT DURING CONSTRUCTION OF DAMS. 2. PIPE AND RISER JOINTS ARE TO BE WATERTIGHT WITHIN STORMWATER MANAGEMENT FACILITIES. 3. FOR TEMPORARY SEDIMENT TRAPS OR BASINS WHICH ARE TO BE CONVERTED TO PERMANENT STORMWATER MANAGEMENT FACILITIES; CONVERSION IS NOT TO TAKE PLACE UNTIL THE SITE IS STABILIZED, AND PERMISSION HAS BEEN OBTAINED FROM THE COUNTY EROSION CONTROL INSPECTOR. CONSTRUCTION NOTES I. PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RICHT-OF-WAY, INCLUDING CONNECTION TO ANY EXISTING ROAD, A PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION (VDOT). THIS PLAN AS DRAWN MAY NOT ACCURATELY REFLECT THE REQUIREMENTS 01 - THE PERMIT. WHERE ANY DISCREPANCIES OCCUR THE REQUIREMENTS OF THE PERMIT SHALL GOVERN. 2. ALL MATERIALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPECIFICATIONS AND STANDARDS OF VDOT UNLESS OTHERWISE NOTED. 3. EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED EROSION CONTROL PLAN AND SHALL BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR OTHER CONSTRUCTION, 4. ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED. 5. THE MAXIMUM ALLOWABLE SLOPE IS 2:1 (HORIZONTAL: VERTICAL). WHERE REASONABLY OBTAINABLE, LESSER SLOPES OF 3:1 OR BETTER ARE TO BE ACHIEVED. 6. PAVED, RIP -RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN THE OPINION OF THE COUNTY ENGINEER, OR DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL. 7. ALL TRAFFIC CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES. 8. UNLESS OTHERWISE NOTED ALL CONCRETE PIPE SHALL BE REINFORCED CONCRETE PIPE - CLASS III. 9. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY PATH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 CFR PART 1926). DESIGNED H & S - ,��NL'1'H,y ��NLTH q7, �� f `f RIVANNA WATER & SEWER AUTHORITY DRAM H&S (80f ��,'� HAZENAND SAWYERCHARLOTTESVILLE, VIRGINIA RONALD LCHECKED TAYLOR �'' N Environmental Engineers 8 Scientists FLT PROJ.ENGR. RLT Lic. No.24649 4Lic. No.43610 DLT � $w }, j 3I�`OYI 4011 WestChose Boulevards, Suite 500 MOORES CREEK WASTEWATER TREATMENT PLANT �FLTBY APPROVED � TONAL 8��� � jONAL_E�Gl ` Raleigh, North Carolinas 27sm NUTRIENT REMOVAL IMPROVEMENTS SITE WORK CIVIL GENERAL CONSTRUCTION AND EROSION CONTROL NOTES THE SCALE BAR DATE MARCH 2009 SHOWN BELOW H&S JOB MEASURES ONE NUMBER 31037 INCH LONG ON CONTRACT DRAWING THE ORIGINAL NUMBER NUMBER DRAWING. I A I C30 390 370 350 340 PLAN 1 "=50' U IN `� 110 390 370 360 350 —0+50 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+50 6+00 6+50 7+,00 7+50 8+00 8+50 9+00 9+50 10+00 10+50 11+00 11+50 12+00 12+50 13+00 13+50 PROFILE V: 1"=5' ; H: 1"=50' DESIGNED Moe DRAWN Ml CHECKED PROd.ENGR. RLT H°r o�pL1TT �Gr� ' CCYRONALDL O C A �% LOR 9[ N 24849 W Lic. No.43sto W E��� � 70NAL E�Gl 3° ffiZEN �SAWER Environmental Engineens & Scientists 4011 WestChose Boulevard, Suite 500 Raleigh, North Corolimo 27607 RIVANNA WATER &SEWER AUTHORITY CHARLOTTESVILLE, VIRGINIA �G SITE WORK I� PARTIAL SITE PLAN - TEMPORARY ACCESS ROAD STHE SCALE HOWN BELOW MEASURES ONE INCH LONG ONCIVIL RAWNG.THE INAL DATE MARCH 2009 H&S JOB NUMBER31037 CONTRACT NUMBER q DRAWING NUMBER C33 MOORES CREEK WASTEWATER TREATMENT PLANT NUTRIENT REMOVAL IMPROVEMENTS 3 CONSTRUCTION 2-2009 RLT 2 DEO FINAL APPROVAL 2-2009 RLT.�'�'1 DEO REVIEW SUBMITTAL 8-2008 RLT N0. ISSUED FOR DATE BY APPROVED M LOW PT ST k: 0+75.00 HIG PT STA: 5+30.011 LOW PT ST : 6+85.69 HIGH IT STA: 8+90 97 LOW PT S A: 11+64.22 LOW PT El 346.50 HIG PT ELEV: 373.22 LOW PTE V: 371.68 HIGH 3T ELEV: 374 66 LOW PT EV: 372.68 II PVI STA 1+50.00 l STA:4+75.0 PVI ;TA:7+00.00 PV STA:8+69.47 PVI STA 11+53.95 �� PVI ELE :348.58 M ELEV:374. PVI ELE :371.30 P ELEV: 374,97 PVI EL V: 372.51 ;5 Lo K: 2 .76 K: 16.63 K: 21.69 K: 33.01 •- LVC:1 0.00 LVC: 150.00 LVC:1 0.00 VC: 100.00 L C: 00.00 w n 00 O ON O p OM 0— 00 07 00 0 01 Om O M Ism p m rM p N Le Nb n p �O N N Oe0 O 1D d�') u] r O� y r OfV N n Vi r OiO r` 'N N II 0: +M +M +M +M +M +M +M N <LJ O}M eI p W Iq b J r` m A 0 LJ >W >m >w fN> >m t%1> >w f%)U >m 0> >w ,> >m m W m w m w m w m 0.867 LJ 0.579 o GRADE d O 0 II ON Na xc ap w M M w II PROIOSED a � O J W NLn MLO co CD r-0) dCn � �LO LnLn stn 1DM X00 00 Or 0L0 n (O X00 N OM �Ln MO � O O N 01 �O �N MCn �m SCP M0 t O^ NLD 00 t Ln Cn� �� OM �c0 C14NM C14�� r� coN 00r) Ln0-It �� U7� �� �� ^cD U') U') �Ln �Ln LDO LD LD I")rr) r^ ^h MM MIS n^ rl �N t`� ^� ^� ^� rM t`M ^N rN 1�N nM MM MM MM MM Mr) M MM SIM rn M '")r7 MM M M MM I'71+) M„^) MM ISM V1n �M 390 370 360 350 —0+50 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+50 6+00 6+50 7+,00 7+50 8+00 8+50 9+00 9+50 10+00 10+50 11+00 11+50 12+00 12+50 13+00 13+50 PROFILE V: 1"=5' ; H: 1"=50' DESIGNED Moe DRAWN Ml CHECKED PROd.ENGR. RLT H°r o�pL1TT �Gr� ' CCYRONALDL O C A �% LOR 9[ N 24849 W Lic. No.43sto W E��� � 70NAL E�Gl 3° ffiZEN �SAWER Environmental Engineens & Scientists 4011 WestChose Boulevard, Suite 500 Raleigh, North Corolimo 27607 RIVANNA WATER &SEWER AUTHORITY CHARLOTTESVILLE, VIRGINIA �G SITE WORK I� PARTIAL SITE PLAN - TEMPORARY ACCESS ROAD STHE SCALE HOWN BELOW MEASURES ONE INCH LONG ONCIVIL RAWNG.THE INAL DATE MARCH 2009 H&S JOB NUMBER31037 CONTRACT NUMBER q DRAWING NUMBER C33 MOORES CREEK WASTEWATER TREATMENT PLANT NUTRIENT REMOVAL IMPROVEMENTS 3 CONSTRUCTION 2-2009 RLT 2 DEO FINAL APPROVAL 2-2009 RLT.�'�'1 DEO REVIEW SUBMITTAL 8-2008 RLT N0. ISSUED FOR DATE BY APPROVED arts.- nmv �sw-sr sw-�c,xs wm nxu sw-sxae.. sw-fl 2h=2.41' Wf= 4 Z FILTER MEDIA: 20' CLEAN ASTM C33 CONCRETE SAND & 6' WASHED GRAVEL 3 CONSTRUCTION 2-2009 RLT n PROJ.ENGR. H& S 1.33 INV IN = 322.25 (15' RCP) 2 DEQ FINAL APPROVAL 2-2009 RLT 1 DEO REVIEW SUBMITTAL 8-2008 RLT INCH LONG ON NO. ISSUED FOR DATE BY APPROVED pR 31037 M,1)p AWE S nlffl. M- ,K MW IP MX W -W, ST,W-RS D IILM XNC" M N NUMBER NUMBER 0 FILTER DETAIL FLOW -PORT DETAIL GENERAL NOTES: 1. CONCRETE: 28 DAY COMPRESSIVE STRENGTH F'c = 5,000 PSI 2. STEEL REINFORCEMENT: ASTM A-615, GRADE 60 3. DESIGN LIVE LOAD: HS -20-44 4. EARTH COVER: 0'-0' MIN TO 10'-0' MAX 5. MANUFACTURER PCI CERTIFICATION REQUIRED 6. FOR PROPER OPERATION INVERT OF STRUCTURE MUST BE LEVEL. 7. STRUCTURE IS POST TENSIONED FOR WATER TIGHT SEAL. 8. MAX SECTION WEIGHT = 9.47 TONS 9. SEDIMENT AND FILTER CHAMBERS ARE REVERSIBLE TO MEET SITE REQUIREMENTS AS NEEDED. 10. STEPS: VOOT 106.09, 12' O.C. ON INTERIOR WALLS AT Arrccc UANN111 Fc rLvn 70.75 ^ 4.04 1� 10.00 4 CELLS 010' EA '}=---10.38 I T _ Mi Mi - 15' RCP OUT INV= 322.35 0.82 0.25 U 0 0 COVER BED ELEVATION = 322.35 I r^ SECTION A -A tV EXTEND MANHOLES TO GRADE 24'0 FRAMES & COVERS, TYP I' INLET z 15" RCP 0 1.00% 6ASPHALI PAVEMENT 48 I~ 2.00 , TYP //�3� PLAN EXTEND MANHOLES TO GRADE, TYP +331.5 TOP ELEVATION = 327.77 15' RCP ININV = 325.35 CLEANOUT, TYP L6• UNDERDRAIN IN GRAVEL SIDE ELEVATION 20' ASTM C33 CONCRETE SAND 6' UNDERDRAIN 4,00 CREST= 326.92 0.83 H� � o 0 SECTION B-8 SECTION C -C DELAWARE SAND FILTER PRECAST CONCRETE DETAIL 1 1/8'=1'-0' C43 15' ROPIN 4' Il325.50 A c � A VDOT DI -1 15' RCP TO j SAND FILTER INV= 325.40 PLAN VIEW N. T. S. r BYPASS CURB INLET DETAIL 3 N.T.S. C43 DESIGNED H & S S DRAWN H& S g _J 4 CHECKED W 3 CONSTRUCTION 2-2009 RLT n PROJ.ENGR. H& S 2 INV IN = 322.25 (15' RCP) 2 DEQ FINAL APPROVAL 2-2009 RLT 1 DEO REVIEW SUBMITTAL 8-2008 RLT INCH LONG ON NO. ISSUED FOR DATE BY APPROVED pR 31037 M,1)p AWE S nlffl. M- ,K MW IP MX W -W, ST,W-RS D IILM XNC" M 15' RCP I 15' RCP SAND FILTER SECTION A -A N.T.S. FINISH GRADE VDOT DI -1 6' SLAB TOP WITH FRAME AND GRATE 4'x4' BOX VDOT STANDARD STEPS, TYP 15' NOTES: 1. ALL DAMS AND CONSTRUCTED FILL TO BE WITHIN 95% OF MAXIMUM DRY DENSITY AND 2% OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL TO BE APPROVED BY A GEOTECHNICAL ENGINEER. A GEOTECHNICAL ENGINEER IS TO BE PRESENT DURING ( CONSTRUCTION OF DAMS. ( " 2. PIPE AND RISER JOINTS ARE TO BE WATERTIGHT ( CB -12 (DI -1) WITHIN STORMWATER MANAGEMENT FACILITIES. RIM = 331.50 3. FOR TEMPORARY SEDIMENT TRAPS OR BASINS WHICH ( INV IN = 325. 0 (15' RCP ARE TO BE CONVERTED TO PERMANENT STORMWATER INV OUT = 32 40 (15' R P) MANAGEMENT FACILITIES; CONVERSION IS NOT TO TAKE PLACE UNTIL THE SITE IS STABILIZED, AND x PERMISSION HAS BEEN OBTAINED FROM THE COUNTY EROSION CONTROL INSPECTOR. 4. SAND FILTER SHALL NOT BE PUT ON -UNE UNTIL ( N ENTIRE DRAINAGE AREA IS STABILIZED. CONTRACTOR 1 4' I SHALL BLOCK SAND FILTER INLET AND OUTLET PIPES ( UNTIL SITE IS STABILIZED IF BYPASS CURB INLET IS GAS x RELEA E BUILT BEFORE COMPLETE STABILIZATION. o ( OWER 5. SAND FILTER SHALL BE CONSTRUCTED WATER TIGHT. -'7 / �+ ( CONTRACTOR SHALL CONTACT THE ENGINEER IF I GROUND WATER IS DISCOVERED ABOVE BOTTOM OF SAND FILTER. ( 6. GRAVEL SURROUNDING SAND FILTER UNDERDRAINS "SHALL BE J¢ TO 2 INCH DIAMETER GRAVEL AND 10 ( ( PROVIDE AT LEAST 2 INCHES OF COVER OVER THE UNDERDRAINS. ' 7. UNDERDRAINS SHALL BE SDR 40 OR BETTER 6 -INCH PERFORATED PVC PIPE. PERFORATIONS SHALL BE ( GAS RELEASE INCH, AND EACH ROW OF PERFORATIONS SHALL ( CONTAIN AT LEAST 4 HOLES. MAXIMUM SPACING r OWER BETWEEN ROWS SHALL BE 6 INCHES. CONTRACTOR J SHALL INSTALL CLEANOUTS ON EACH UNDERDRAIN THAT EXTEND 6' ABOVE THE SAND MEDIA. 8. SITE OWNER SHALL REFER TO OPERATIONS AND ( MAINTENANCE AGREEMENT FOR MAINTENANCE BYPASS WEIR x SCHEDULE. SEDIMENT AND CONTAMINATED SAND SHALL BE REMOVED WITH A VACUUM TRUCK. SAND INV = 326.92 FL ODWAY FILTER SHALL BE INSPECTED QUARTERLY AND AFTER ( EVERY STORM LARGER THAN THE 2 -YEAR RAINFALL 4'X4' CLEAR LL DURING THE FIRST 12 MONTHS. THEREAFTER, SAND FILTER SHALL BE INSPECTED EVERY 12 MONTHS. ( 9. IF SEDIMENT ACCUMULATES TO A DEPTH OF 6 INCHES '( OR DEVELOPS AN OILY FILM, SEDIMENT SHALL BE _ REMOVED FROM THE SEDIMENT CHAMBER AND/OR THE ( SAND FILTER CHAMBER. FOR THE SAND FILTER ( _ CHAMBER, REMOVAL OF THE FIRST 2 TO 3 INCHES OF SAND MEDIA MAY BE NECESSARY TO REMOVE ALL OF THE SEDIMENT. 15' R 01.00% x DELAWARE SAN FILTER PLAN VIEW DETAIL z 1' = 10' C43 Yi F111 30" 91i' yi' R TYPICAL SECTION (DIMENSIONS MAY VARY WITH MANUFACTURER'S DESIGN) GALVANIZED STEEL STEP "68M. 60, REINFORCING ROD ENCASED IN A %ORROSON RESISTANT RUBBER OR OTHER MATERIAL APPROVED BY THE ENGINEER, (DIMENSION MAY VARY WITH MARUFADTURERS DESIGN) CORROSION N RESISTANT R 4 AL REINFORCING ROD L SECTION _J 4 JUNCTION BOX MH -B W RIM = 333.33 INV IN = 322.25 (15' RCP) 2 INV IN = 322.25 (15' RCP) INV OUT = 322.15 (15' RCP) 15' NOTES: 1. ALL DAMS AND CONSTRUCTED FILL TO BE WITHIN 95% OF MAXIMUM DRY DENSITY AND 2% OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL TO BE APPROVED BY A GEOTECHNICAL ENGINEER. A GEOTECHNICAL ENGINEER IS TO BE PRESENT DURING ( CONSTRUCTION OF DAMS. ( " 2. PIPE AND RISER JOINTS ARE TO BE WATERTIGHT ( CB -12 (DI -1) WITHIN STORMWATER MANAGEMENT FACILITIES. RIM = 331.50 3. FOR TEMPORARY SEDIMENT TRAPS OR BASINS WHICH ( INV IN = 325. 0 (15' RCP ARE TO BE CONVERTED TO PERMANENT STORMWATER INV OUT = 32 40 (15' R P) MANAGEMENT FACILITIES; CONVERSION IS NOT TO TAKE PLACE UNTIL THE SITE IS STABILIZED, AND x PERMISSION HAS BEEN OBTAINED FROM THE COUNTY EROSION CONTROL INSPECTOR. 4. SAND FILTER SHALL NOT BE PUT ON -UNE UNTIL ( N ENTIRE DRAINAGE AREA IS STABILIZED. CONTRACTOR 1 4' I SHALL BLOCK SAND FILTER INLET AND OUTLET PIPES ( UNTIL SITE IS STABILIZED IF BYPASS CURB INLET IS GAS x RELEA E BUILT BEFORE COMPLETE STABILIZATION. o ( OWER 5. SAND FILTER SHALL BE CONSTRUCTED WATER TIGHT. -'7 / �+ ( CONTRACTOR SHALL CONTACT THE ENGINEER IF I GROUND WATER IS DISCOVERED ABOVE BOTTOM OF SAND FILTER. ( 6. GRAVEL SURROUNDING SAND FILTER UNDERDRAINS "SHALL BE J¢ TO 2 INCH DIAMETER GRAVEL AND 10 ( ( PROVIDE AT LEAST 2 INCHES OF COVER OVER THE UNDERDRAINS. ' 7. UNDERDRAINS SHALL BE SDR 40 OR BETTER 6 -INCH PERFORATED PVC PIPE. PERFORATIONS SHALL BE ( GAS RELEASE INCH, AND EACH ROW OF PERFORATIONS SHALL ( CONTAIN AT LEAST 4 HOLES. MAXIMUM SPACING r OWER BETWEEN ROWS SHALL BE 6 INCHES. CONTRACTOR J SHALL INSTALL CLEANOUTS ON EACH UNDERDRAIN THAT EXTEND 6' ABOVE THE SAND MEDIA. 8. SITE OWNER SHALL REFER TO OPERATIONS AND ( MAINTENANCE AGREEMENT FOR MAINTENANCE BYPASS WEIR x SCHEDULE. SEDIMENT AND CONTAMINATED SAND SHALL BE REMOVED WITH A VACUUM TRUCK. SAND INV = 326.92 FL ODWAY FILTER SHALL BE INSPECTED QUARTERLY AND AFTER ( EVERY STORM LARGER THAN THE 2 -YEAR RAINFALL 4'X4' CLEAR LL DURING THE FIRST 12 MONTHS. THEREAFTER, SAND FILTER SHALL BE INSPECTED EVERY 12 MONTHS. ( 9. IF SEDIMENT ACCUMULATES TO A DEPTH OF 6 INCHES '( OR DEVELOPS AN OILY FILM, SEDIMENT SHALL BE _ REMOVED FROM THE SEDIMENT CHAMBER AND/OR THE ( SAND FILTER CHAMBER. FOR THE SAND FILTER ( _ CHAMBER, REMOVAL OF THE FIRST 2 TO 3 INCHES OF SAND MEDIA MAY BE NECESSARY TO REMOVE ALL OF THE SEDIMENT. 15' R 01.00% x DELAWARE SAN FILTER PLAN VIEW DETAIL z 1' = 10' C43 Yi F111 30" 91i' yi' R TYPICAL SECTION (DIMENSIONS MAY VARY WITH MANUFACTURER'S DESIGN) GALVANIZED STEEL STEP "68M. 60, REINFORCING ROD ENCASED IN A %ORROSON RESISTANT RUBBER OR OTHER MATERIAL APPROVED BY THE ENGINEER, (DIMENSION MAY VARY WITH MARUFADTURERS DESIGN) CORROSION N RESISTANT R 4 AL REINFORCING ROD L SECTION ! MINIMUM OF 3" EMBEDMENT NOTES STEPS WILL BE REQUIRED IN ALL STRUCTURES WITH A DEPTH OF 4'-0" OR GREATER UNLESS OTHERWISE NOTED ON THE PLANS. ALL STEPS SHALL PROTRUDE 4%I" FROM INSIDE FACE OF STRUCTURE WALL. STEP SPACING TO BE 18" C -C STEPS SHALE VATHSTA70 A MINIMUM FORCE OF 300 POUNDS WHEN EXTENDED 4/i" FROM THE FACE OF THE SUPPORT. STEPS ARE TO BE VERTICALLY ALIGNED AD UMFORMALY SPACED FOR THE ENTIRE DEPTH OF ANY STRUCTURE. IN PRECAST UNITS STEPS MAY BE CAST IN PLACE, MORTARED INTO HOLES PROVIDED BY THE FABRICATOR. OR ORNEN. STEPS OFFERING IN DIMENSIONS, CONFRRRIAM OR MATERIALS FROM THOSE SHOWN MAY ALSO BE USED PROVIDED THEY MEET THE MINIMUM RECILIPB ENTS SHOWN HEREON AND THE CONTRACTOR HAS FURNISHED THE ENGINEER WITH DETAILS AND CERTIFIED TESTREPORTS OF SUCH STEPS. OF THE PROPOSED SUBSTITUTE AHD HAS RECEIVED WRITTEN APPROVAL FROM THE ENGINEER FOR THE USE ALL STEPS INSTALLED SHALL BE PROVIDED WITH SLP -RESISTANT SURFACES SUCH AS BUT NOT LASTED TO, CORRUGATED KNURLED. OR DIMPLED SURFACES. ALUMINUM STEPS SHALL BE FABRICATED IN ACCORDANCE WITH ASTM 8221 ALLOY 6006-T5. THAT PORI'XM OF THE STEP ENCASED IN MASONRY SHALT. BE �ED A UMNUM PI WGIENTED COAT q CME VENT TTOEFE�S1 S SPECIFICATION TC -C -00496A ALUMINUM STEP VDOT 106.09 ST -1 STANDARD STEP DETAIL 4 N. T.S C43 COURTESY VIRIGINA DEPARTMENT OF TRANSPORTATION RIVANNA WATER & SEWER AUTHORITY RONALD L R IWEN AND SAWYER CHARLOTTESVILLE, VIRGINIA � o TAYLOR ' S N a Environmental Engineers & Scientists Lie. NO.24849 LTO. N0.43610 �W� 01 4011 WestChase Boulevolyd, Suite 500 MOORES CREEK WASTEWATER TREATMENT PLANT InATAr F���IAArer ��O1t1 ��� Raleigh, North Caroliina 27607 NUTRIENT REMOVAL IMPROVEMENTS SITE WORK M .31, "1 �! ev THE SCALE BAR SHOWN BELOW N H&S JOB 31037 MEASURES ONE NUMBER CIVIL INCH LONG ON CONTRACT ORA THE ORIGINAL NUMBER NUMBER DETAILS DRAWING. A C43 ! MINIMUM OF 3" EMBEDMENT NOTES STEPS WILL BE REQUIRED IN ALL STRUCTURES WITH A DEPTH OF 4'-0" OR GREATER UNLESS OTHERWISE NOTED ON THE PLANS. ALL STEPS SHALL PROTRUDE 4%I" FROM INSIDE FACE OF STRUCTURE WALL. STEP SPACING TO BE 18" C -C STEPS SHALE VATHSTA70 A MINIMUM FORCE OF 300 POUNDS WHEN EXTENDED 4/i" FROM THE FACE OF THE SUPPORT. STEPS ARE TO BE VERTICALLY ALIGNED AD UMFORMALY SPACED FOR THE ENTIRE DEPTH OF ANY STRUCTURE. IN PRECAST UNITS STEPS MAY BE CAST IN PLACE, MORTARED INTO HOLES PROVIDED BY THE FABRICATOR. OR ORNEN. STEPS OFFERING IN DIMENSIONS, CONFRRRIAM OR MATERIALS FROM THOSE SHOWN MAY ALSO BE USED PROVIDED THEY MEET THE MINIMUM RECILIPB ENTS SHOWN HEREON AND THE CONTRACTOR HAS FURNISHED THE ENGINEER WITH DETAILS AND CERTIFIED TESTREPORTS OF SUCH STEPS. OF THE PROPOSED SUBSTITUTE AHD HAS RECEIVED WRITTEN APPROVAL FROM THE ENGINEER FOR THE USE ALL STEPS INSTALLED SHALL BE PROVIDED WITH SLP -RESISTANT SURFACES SUCH AS BUT NOT LASTED TO, CORRUGATED KNURLED. OR DIMPLED SURFACES. ALUMINUM STEPS SHALL BE FABRICATED IN ACCORDANCE WITH ASTM 8221 ALLOY 6006-T5. THAT PORI'XM OF THE STEP ENCASED IN MASONRY SHALT. BE �ED A UMNUM PI WGIENTED COAT q CME VENT TTOEFE�S1 S SPECIFICATION TC -C -00496A ALUMINUM STEP VDOT 106.09 ST -1 STANDARD STEP DETAIL 4 N. T.S C43 COURTESY VIRIGINA DEPARTMENT OF TRANSPORTATION RIVANNA WATER & SEWER AUTHORITY RONALD L R IWEN AND SAWYER CHARLOTTESVILLE, VIRGINIA � o TAYLOR ' S N a Environmental Engineers & Scientists Lie. NO.24849 LTO. N0.43610 �W� 01 4011 WestChase Boulevolyd, Suite 500 MOORES CREEK WASTEWATER TREATMENT PLANT InATAr F���IAArer ��O1t1 ��� Raleigh, North Caroliina 27607 NUTRIENT REMOVAL IMPROVEMENTS SITE WORK M .31, "1 �! ev THE SCALE BAR SHOWN BELOW DATE MARCH 2009 H&S JOB 31037 MEASURES ONE NUMBER CIVIL INCH LONG ON CONTRACT ORA THE ORIGINAL NUMBER NUMBER DETAILS DRAWING. A C43 tj