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S-2004-2.1R s L J -9 ..r r a 0 J LL W ' GENERAL NOTES FOR OFF -SITE /STREET IMPROVEMENT PLAN 1. ALL WORK AND MATERIALS WI7H /N THE PUBLIC RIGHT-OF-WAY SHALL CONFORM TO THE CITY OF COSTA MESA STANDARDS AND SHALL MEET THE APPROVAL OF THE CITY ENGINEER. 2. ALL WORKS SHALL BE PERFORMED AND ALL MATERIALS SHAG BE IN ACCORDANCE WITH CITY OF COSTA MESA STANDARD DRAWINGS AND THE STANDARD SPECIFICATONS FOR PUBLIC WORKS CONSTRUCTION, (GREEN BOOK) CURRENT EDITION. J. CONTRACTOR SHALL FURNISH AND INSTALL ALL SIGNS LIGHTS, BARRICADES FLASHING ARROW BOARD AND ANY OTHER TRAFFIC CONTROL OR WARNING DEVICES, INCLUDING FLAGMEN, AS MAY BE REQUIRED BY THE CITY ENGINEER. ALL ITEMS MENTIONED SHALL BE IN CONFORMANCE WITH THE CURRENT REQUIREMENTS AS SPECIFIED IN THE LATEST EDITION OF THE " CONS7RUC7701V SAFETY ORDERS" AND W.A. T.C.H. FAILURE TO SO WILL BE C17ED UNDER APPLICABLE SECTON OF THE CVC. AND CORRECRVE COSTS TO THE CITY WILL BE CHARGED. 4. NO LANE CLOSURES ALLOWED DURING HOLIDAY PERIOD BETWEEN THANKSGIVING AND NEW YEARS UNLESS BY SPECIAL PERMISSION FROM 7HE PUBLIC SERVICES DIRECTOR. 5. CONTRACTOR SHALL OBTAIN A PUBLIC SERVICES DEPARTMENT CONSTRUCTON ACCESS AND ENCROACHMENT PERMITS PRIOR TO THE START OF ANY ON -SITE CONS7RUCTON OR W /7H /N PUBLIC RIGHT -OF -WAY AND REQUEST INSPECTION 24 HOURS IN ADVANCE OF PERFORMING ANY WORK. 7ELEPHONE (714) 754 -5025. THE CONTRACTOR SHALL MAINTAIN A COPY OF PERMITS AND SIGNED PLANS ON THE JOB SITE 6. PERMITS WILL BE REQUIRED FROM MESA CONSOLIDATED WATER DISTRICT IRVINE RANCH WATER DISTRICT, ORANGE COUNTY WATER DISTRICT ORANGE COUNTY SAN/TASON DISTRICT, OR COSTA MESA SANITARY DISTRICT FOR CONS7RUCTON OR MODIFICA77ON OF WA7ER AND SEWER IMPROVEMENTS TO THEIR FACILITIES. 7HE CONTRACTOR SHALL NOTIFY EACH 48 HOURS PRIOR TO BEGINNING CONSTRUCTON. CONSTRUCTON ON NEWPORT BOULEVARD AND WITHIN CAL TRANS RIGHT OF -WAY, WILL REQUIRE PERMITS AND PLAN APPROVAL FROM CAL TRANS AS WELL AS THE CITY OF COSTA MESA. LOCATE AND PROTECT ALL EXISTING U77L /77ES IN PLACE 7. PLANS APPROVED BY SOUTHERN CALIFORNIA EDITON, PACIFIC BELL OR SOUTHERN CALIFORNIA GAS COMPANY ARE REQUIRED PRIOR TO ISSUANCE OF ENCROACHMENT PERMITS RELATED TO THEIR FACILITIES. 8. 7HE CONTRACTOR SHALL PAY FOR ALL SOIL AND MA7ERIALS TESTS DEEMED NECESSARY AS DETERMINED BY THE CITY ENGINEER. 9. PAVEMENT AND BASE THICKNESS AS SHOWN ARE BASE ON A PRELIMINARY 'R" VALUE. DURING CONS7RUCTION A SOIL TEST MAY BE REQUESTED BY THE CITY TO DETERMINE THE ACTUAL "R" VALUE AND THE THICKNESS WILL BE ADJUSTED ACCORDINGLY. TESTS SHALL BE MADE BY A LICENSED SOILS ENGINEER AND APPROVED BY THE CITY ENGINEER. 10. ALL EXISTING DRAINAGE COURSES ON THE PEOJECT MUST CONTINUE TO FUNCRON, ESPECIALLY DURING STORM CONDITONS, AND APPROVED PR07EC77VE MEASURES AND TEMPORARY DRAINAGE PROVISIONS MUST BE USED TO PROTECT ADJOINING PROPERTIES DURING THE GRADING PROJECT IN ALL CASES, THE CONTRACTOR AND /OR DEVELOPER SHALL BE HELD LIABLE FOR ANY DAMAGES DUE TO OBS7RUCRON OF NATURAL DRAINAGE PATTERNS. IF THE FOREGOING CANNOT BE COMPLIED WITH, A FULLY EXECUTED, NOTARIZED, AND RECORDED AGREEMENT BETWEEN THE AFFECTED PARTIES WILL BE REQUIRED. ALL HAUL ROUTES MUST BE APPROVED BY THE MANAGER OF TRANSPORTATON SERVICES. 11. THE PROJECT 517E SHALL BE MAINTAINED IN A "WET -DOWN" CONDITION TO PREVENT EXCESSIVE DUST. SPILLAGE AND DUST SHALL BE REMOVED FROM THE PUBLIC RIGHT-OF-WA Y BY SWEEPING OR SPRINKLING, HOWEVER, WATERING, THAT RESULTS IN MUD ON PUBLIC STREETS IS NOT PERMITTED AS A SUBS77TUTE FOR OTHER CLEANING METHODS. 12 ALL U77LITY 7RENCH BACKFILL, MA7ER/AL, AND COMPAC77ON SHALL CONFORM TO CITY OF COSTA MESA STANDARD DRAWING NO. 813. BORE UNDER EXIS77NG IMPROVEMENTS - TUNNELING IS NOT ALLOWED. NO OPEN EXCAVA77ONS WILL BE ALLOWED OVERNIGHT - BACKFILL OR PLA IF. 13 ALL PCC AND AC TO BE JOINED SHALL BE SAWCUT IN A CLEAN, STRIGHT LINE AS APPROVED BY 7HE CITY ENGINEER. 14. ALL OBS7RUCRONS, WTH /N THE PUBLIC SIDEWALK SUCH AS POWER POLES, STREET LIGHTS, FIRE HYDRANTS UTILITY PEDESTALS, MAILBOXES, AND S7REET SIGNS SHALL HAVE MINIMUM OF 4" OF CLEAR SIDEWALK PLACED BEHIND THEY 15. IF REQUESTED, AS- BUILT"" DRAWINGS SHALL BE SUBMITTED TO THE CITY ENGINEERING DIVISION UPON COMPLETON OF IMPROVEMENTS AS SHOWN ON THE APPROVED PLANS. 16, NO REMOVAL OF TREES FROM THE PUBLIC R1CHT -OF -WAY WILL BE PERM/T70 WITHOUT SPECIFIC APPROVAL FROM THE PARKS AND RECREATON COMMISSION AND COMPLIANCE W9TH M177GA77ON MEASURES AS DE7£RM/NED BY THE COMMISSION TO RELOCATE THE TREES AND /OR TO COMPENSATE THE CITY FOR THE LOSS OF TREES FROM THE PUBLIC RIGHT -OF -WAY. CONDITIONS OF THE PARKS AND RECREATION COMMISSION MUST BE INCORPORATED ONTO THESE PLANS PRIOR TO PLAN APPROVAL. 17 PLANTING OF PARKWAY TREES AND INSTALLATION OF /RR /GABON LINES INSTALLED, INCLUDING RISERS, HEADS, VALVES, AND METERS AS DIRECTED AND IN ACCORDANCE WITH THE REQUIREMENTS OF THE PUBLIC SERVICES DEPARTMENT. 18. ALL CONS7RUCTION STAKING SHALL BE DONE BY A LICENSED ENGINEER AND CERTIFIED IN WR/SNG AS TO LINE AND GRADE PER APPROVED PLANS AND SUBMITTED TO THE CITY ENGINEER. 19, NO WORK SHALL BE DONE ON ADJACENT PROPERTES OR ADJACENT OWNERS IMPROVEMENTS WTHOUT OBTAINING WRITTEN PERMISSION FROM THE OWNERS OF THE ADJACENT PROPERTES, AND SUBMITTING A COPY THEREOF TO CITY ENGINEERING DIWS /0N. 20. WORK, ONCE BEGAN, SHALL BE PROCEED TO COMPLETON WITHOUT DELAY SO AS TO PROVIDE MINIMUM INCONVENIENCE TO ADJACENT PROPERTY OWNERS AND THE TRAVELING PUBLIC. 21. ALL STREET STATIONING REFERS TO THE CEN7ERL /NE OF THE STREET AND CURB DATA REFERS TO THE FACE OF CURB. 22. 7HE AMOUNT OF ASPHALT BINDER TO BE MIXED WITH THE MINERAL AGGREGATE SHALL BE 56 PERCENT BY DRY WEIGHT 23 ALL UNDERGROUND WORK SHALL BE COMPLETE PRIOR TO ANY SURFACE WORK IN THE PUBLIC RIGHT -OF- WAY. 24, WHERE DRIVEWAY DEPRESSIONS ARE CONS7RUCTED, THE DRIVEWAY APPROACH SHALL BE CONS7RUCTED TO PROPERTY LINE PER CITY OF COSTA MESA STANDARD PLANS. LOCATION, TYPE AND WIDTH ARE TO BE APPROVED BY THE CITY TRANSPORTATON SERVICE MANAGER. 25. CRUSH MISCELLANEOUS BASE MAY BE USED UNDER WALKS AND CURBS AND GUTTERS IN LIEU OF CRUSHED AGGREGA7E BASE. 26. ANY LOT CORNER OR OCEMA BM, MONUMENT, OR TIE DESTROYED OR DISPLACED SHALL BE RESTORED TO ITS ORIGINAL POSITION BY A LICENSED ENGINEER OR SURVEYOR. ANY CHANGE IN LOCATION OR ELEVA77ON SHALL BE REPORTED TO THE CITY ENGINEER AND OCEMA BY A LICENSED ENGINEER OR LAND SURVEYOR ON 8 112" x 11" PAPER (ONE SIDE ONLY) SHOWING LOCATION AND TIES OR LEVEL RUN. UTILITIES: Undeground Service Alert eEFOR y CALL: TOLL FREE 1- 800 - 422 -4133 TWO WORKING DAYS BEFORE YOU DIG COSTA MESA SANITARY DISTRICT 19TH STREET SEWER RECONSTRUCTION N THE CITY OF COSTA MESA REVISIONS NO. I DATE I DESCRIPTION u VICINITY MAP NTS SHEET INDEX 1 GENERAL NOTES, VICINITY MAP, ETC. 2 PLAN AND PROF /LE NOTICE TO CONTRACTORS. ALL CONTRACTORS AND SUBCONTRACTORS PERFORMING WORK SHOWN ON OR RELA7ED TO THESE PLANS SHALL CONDUCT THEIR OPERATIONS SO THAT ALL PERSONS ARE PROVIDED A SAFE PLACE TO WORK AND THE PUBLIC IS PROTECTED. ALL CONTRACTORS AND SUBCONTRACTORS SHALL COMPLY WITH THE STATE OF CALIFORNIA D IVISION OF INDUSTRIAL RELA TONS, DIVISION OF INDUS7R 1AL SAFETY AND HEALTH, "CONSTRUCTION SAFETY ORDERS " 7HE DIS77?/CT ENGINEER SHALL NOT BE RESPONSIBLE IN ANY WAY FOR THE CONTRACTOR'S AND SUBCONTRACTORS COMPLIANCE WITH THESE ORDERS CONTRACTOR FURTHER AGREES THAT HE SHALL ASSUME SOLE AND COMPLETE RESPONSIBILITY FOR JOB 97E CONDITIONS DURING THE COURSE OF CON57RUC77ON OF THIS PROJECT INCLUDING SAFETY OF ALL PERSONS AND PROPERTY, THAT THIS REQUIREMENT SHALL APPLY CONSNUOUSLY AND NOT BE LlAN1ED TO NORMAL WORKING HOURS, AND THAT THE CONTRACTOR SHALL DEFEND, INDEMNIFY, AND HOLD THE COSTA MESA SANITARY DISTRICT AND THE DISTRICT ENGINEER HARMLESS FROM ANY AND ALL LIABILITY, REAL OR ALLEGED, IN CONNECTION WITH THE PERFORMANCE OF WORK ON THIS PROJECT EXCEPTING FOR LIABILITY ARISING FROM 7HE SOLE NEGLIGENCE OF THE COSTA MESA SANITARY DISTRICT OR THE DISTRICT ENGINEER. THE EXISTENCE, APPROXIMATE LOCA77ON AND EXTENT OF ANY UNDERGROUND UTILISES OR STRUCRJRES SHOWN HEREON HAVE BEEN OBTAINED BY A SEARCH OF THE AVAILABLE RECORDS THE CONTRACTOR lS REQUIRED TO TAKE DUE PRECAU77ONARY MEASURES TO PROTECT 7HE URLITY LINES SHOWN AND ANY OTHER LINES NOT OF RECORD OR NOT SHOWN, IF THE CONTRACTOR, WHILE PERFORMING THE CONTRACT DISCOVERS UTILITY FACILITIES NOT SHOWN HEREON, HE SHALL IMMED /A TEL Y NOTFY THE DIS7R /CT ENGINEER IN WR/SNG. ESS 3. NO. CD RCE 31720 m EXP. 12/31/2004 s�qT CIVIL �� \P FOF CIAL\F TRAFFIC - GENERAL NOTES 1. ALL WORK AND MATERIALS SHALL COMPLY WI7H THE CAL TRANS MANUAL OF TRAFFIC CONTROLS SECTION 5 FOR CONSTRUCTON AND MAINTENANCE ZONES AND WITH THE WORK AREA 7RAFFIC CONTROL HANDBOOK.(LATEST EDITIONS) 2. ALL STRIPING AND MARKING SHALL CONFORM TO THE STALE OF CALIFORNIA STANDARD PLANS AND SPECIFICATIONS INCLUDING STANDARD PLAN A -20, WHEN REQUIRED BY THIS PLAN. J. A 7RAFFIC DETOUR PLAN SHALL BE SUBMITTED TO & APPROVED BY THE CITY TRANSPORTATION SERVICES DIVISION 2 WEEKS PRIOR TO WORK DEFINING ALL PHASES OF VEHICULAR TRAFFIC CONTROL IN THE WORK AREA DURING CONSTRUCTON AC77WTY AND OVERNIGHT DURING EXCAVARON. 4. ANY WORK TO BE DONE WITHIN THE CAL7RANS RIGHTS -OF -WAY MUST BE APPROVED AND COORDINATED BY CAL7RANS. 5. POST NO PARKING " SIGNS DEFINING 77ME AND DA 7E OF RESTRICT /ON 72 HOURS PRIOR TO WORK, 6. NOTIFY BUSINESSES AND RESIDENTS ADJACENT TO THE WORK AREA 1 WEEK PRIOR TO THE START OF WORK. 7 WARNING SIGNS TO BE U77LIZED MUST BE IN PLACE 1 WEEK PRIOR TO THE START OF WORK 8. FLASHING YELLOW BEACONS, TYPE 'B" SHALL BE USED ON ALL C18 SIGNS AND TYPE 11/ BARRICADES GUARDING THE WORK AREA OVERNIGHT. THE FLASHERS SHALL NOT BE USED TO CHANNELIZE, SEPARATE OR DELINEATE THE PATH TRAFFIC IS TO FOLLOW. 9. ALL SIGNS SHALL BE REFLECTOR/ZED AND STANDARD IN SIZE. 10. ALL DELINEATORS SHALL BE 28" MINIMUM, TUBULAR, PORTABLE, REFLECTOR/ZED AND MAINTAINED ERECT, IN THE INDICATED POSITON, AT ALL TIMES AND SHALL BE REPAIRED, REPLACED, OR CLEANED AS NECESSARY TO PRESERVE THEIR APPEARANCE AND CON77NUITY. 11. TYPE / OR TI BARRICADES MAY BE USED IN ADD/RON TO DELINEATORS, AT THE DISCRETION OF THE CONTRACTOR, WHEN THEY ARE INTENDED TO PROVIDE ADDITONAL EMPHASIS IN AREAS WHERE WORKERS ARE PRESENT. 12 THE CONTRACTOR SHALL MAINTAIN ON A 24 -HOUR BASIS ALL SIGNS DELINEATORS, BARRICADES, ETC. TO INSURE PROPER FLOW AND SAFETY OF TRAFFIC. THE CONTRACTOR SHALL HAVE ALL SIGNS, DELINEATORS, BARRICADES, ETC. PROPERLY INSTALLED PRIOR TO BEGINNING OF WORK. THE CON7RACTOR SHALL NOT AT7EMPT TO SWITCH TRAFFIC CONTROL TO TO SUBSEQUENT PHASES OF WORK DURING WORKING HOURS. 13 CONSTRUCTON OPERATIONS SHALL BE CONDUCTED IN A MANNER AS TO CAUSE AS LITTLE INCONVENIENCE AS POSSIBLE ABUT77NG PROPERTY OWNERS 14. THE CONTRACTOR SHALL PROVIDE FOR ACCESS TO ALL ADJACENT PROPERTES 15. THE CONTRACTOR SHALL UTILIZE FLAG MEN DURING WORK HOURS AS DEEMED NECESSARY BY THE CITY. 16. ADDITIONAL TRAFFIC CONTROLS, SIGNS OR BARRICADING MAY BE REQUIRED IN THE FIELD. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE PLACEMENT OF ANY ADDITONAL DEVICES NECESSARY TO ASSURE SAFETY TO THE PUBLIC AT ALL TIMES DURING CONSTRUCTON. 17 WHERE LIGHTS ARE USED TO DELINEATE THE TRAVEL WAY THROUGH AND AROUND THE WORK AREA, THEY SHALL BE TYPE "C" - STEADY BURN LAMPS. 18. ALL VEHICULAR TRAVEL LANES SHALL BE OPEN FROM 7 AM TO 8.•30 AM AND FROM 3.•30 PM TO 6:00 PM. (MONDAY - FRIDAY) 19. ALL CONFLICTING STRIPES, PAVEMENT MARKING AND LEGENDS SHALL BE COMPLETELY REMOVED BY ABRASIVE BLAST CLEANING OR OTHER METHOD APPROVED BY THE ENGINEER. 20. ALL STRIPING , PAVEMENT MARKINGS & RAISED PAVEMENT MARKERS DAMAGED BY CONSTRUCTON SHALL BE REPLACED IN KIND. STRIPING SHALL BE REPLACED WITH 2 COATS OF PAINT- 7HE FIRST COAT APPLIED NO LATER THAN ONE DAY FOLLOWING PAVEMENT WORK; THE SECOND COAT APPLIED 7 DAYS AFTER THE FIRST COAT. 21. FOR DELINEAOON OF TEMPORARY VEHICLE PATHS, USE PRESSURE SENSITIVE TRAFFIC MARKING TAPE AND /OR TYPICAL STRIPING PAINT AND /OR RAISED PAVEMENT MARKERS TO SUPPLEMENT THE CHANNEL/ZING DEVICES 22. ANY TRAFFIC MARKINGS INSTALLED DUE TO DETOUR REQUIREMENTS SHALL BE REMOVED BY WET SANDBLAS77NG IMMEDIATELY AFTER COMPLETION OF WORK. 23 THE CONTRACTOR SHALL PROVIDE SAFE PEDESTRIAN ACCESS AT ALL TIMES. 24. TEMPORARY PR07ECTIVE FENCING SHALL BE PLACED AROUND ANY OPEN TRENCH WITHIN THE PUBLIC RIGHT -OF -WAY DURING NON - CONSTRUCTION HOURS OR OTHER METHODS APPROVED BY ENGINEER. 25 THE CONTRACTOR SHALL BE RESPONSIBLE FOR MODIFYING TRAFFIC SIGNALS AS REQUIRED TO PROVIDE FOR SAFE AND EFFICIENT MOVEMENT OF TRAFFIC, INCLUDING PHASE CHANGES, COVERING OF VEHICLE HEADS OR OTHER HARDWARE MODIFICATIONS, THE CONTRACTOR SHALL COORDINATE WITH CITY OF COSTA MESA, TRAFFIC ENGINEERING AT 7141754 -5334, PRIOR TO DOING ANY WORK AFFECTING THE SIGNAL OPERATION OR EQUIPMENT OR EQUIPMENT 26. THE PROVISIONS OF THIS PLAN SHALL APPLY UNTIL ALL PHASES OF THE WORK WITHIN PUBLIC RIGHT-OF­ WAY ARE COMPLETED, 27 WORKING HOURS 8 - 30 A. M. TO J. 30 P.M. MONDAY THRU FRIDAY AND 9 :00 A. M TO & 00 P. M. SUNDAY. GENERAL NOTES - SEWER 1. THE SEWER SYSTEM SHALL CONFORM TO THE STANDARDS OF THE COSTA MESA SANITARY DISTRICT 2. CONTRACTOR SHALL REQUEST INSPECTON FROM THE OFFICE OF 7HE DISTRICT ENGINEER 48 HOURS PRIOR TO COMMENCEMENT OF WORK. (949) 631 -1731. 3 ANY WORK PERFORMED WITHOUT / NSPEC77ON FROM THE DISTRICT SHALL BE CONSIDERED UNACCEPTABLE 4. CONTRACTOR SHALL OBTAIN C.M.S.D. SEWER PERMIT PRIOR TO COMMENCEMENT OF WORK FROM THE COSTA MESA SANITARY DISTRICT 77 FAIR DRIVE (714) 754 -5307 5 CONTRACTOR SHALL OBTAIN ALL NECESSARY PERMITS THAT MAY BE REQUIRED FROM THE LOCAL GOVERNING AGENCY AND COMPLY WITH PERMIT REQUIREMENTS 6. CONTRACTOR TO HAVE A COPY OF APPROVED SEWER PLAN AND C.U.S.D. STANDARD PLANS AND SPECIFICATIONS ON JOB SlT£ AT ALL TIMES. 7 CLAY PIPE JOINTS SHALL BE TYPE "G" MECHANICAL COMPRESSION JOINTS FOR MAIN LINE SEWER. TYPE "D" JOINTS, BAND -SEAL OR APPROVED EQUAL, ARE APPROVED FOR LATERALS AND REPAIR WORK ONLY. 8. 6" LATERALS SHALL BE CONSTRUC7ED FROM THE SEWER MAIN TO EVERY LOT. 9. ALL LATERALS SHALL BE CONS7RUCTED PRIOR TO SURFACING OF S7REET5. 10. STAMP 'S " ON CURB AT SEWER LATERAL LOCATIONS. 11. SEWER MAIN SHALL BE AIR OR WATER TESTED MEETING DISTRICT ENGINEERS APPROVAL. 12 PRIOR TO ASPHALT CONCRETE PAVING, MANHOLE FRAMES AND COVERS SHALL BE LEFT 6" BELOW FINISHED GRADE. AFTER STREET SURFACING IS COMPLETED, FRAMES AND COVERS SHALL BE RAISED TO GRADE PER 57D. DWG. ND. 5 -705. 13 SEWER MANHOLE FRAME AND COVER SHALL BE ALHAMBRA FOUNDRY A -1270, OR APPROVED EQUAL. COVER TO BE STAMPED "SEWER' 14. SEWER MAIN SHALL BE BALLED AFTER ALL MANHOLE FRAMES AND COVERS HAVE BEEN RAISED TO GRADE 15. PVC PIPE MAY BE USED ONLY WITH PRIOR APPROVAL FROM THE DISTRICT ENGINEER. 16. CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING WARNING DEVICES, FLASHING ARROW BOARDS, LIGHTS AND FLAGMEN IN ACCORDANCE WITH "WORK AREA TRAFFIC CONTROL HANDBOOK" PUBLISHED BY BUILDING NEWS, INC., LATEST ED/RON. 17 TRENCH BACKFILL MATERIAL WITHIN THE L/M /TS OF THE CITY OF COSTA MESA (CCM) SHALL BE CRUSHED MISCELLANEOUS BASE OR SLURRY AS DETERMINED BY CCM AND SHALL BE INSTALLED PER CCU STD. 815 7RENCH RESURFACING SHALL BE PER CCU STD. 815 A PERMIT SHALL BE OBTAINED FROM CCM PRIOR TO COMMENCING WORK PIPE BEDDING SHALL BE PER CMSD S7D. S -112. COSTA MESA SANITARY DISTRICT ENGINEER ROBIN B. AMERS R.C.E. 31720 DATE COSTA MESA SANITARY DISTRICT 19TH STREET SEWER 16B RECONSTRUCTION