HomeMy WebLinkAbout22744; ROS 22744; ROS 22744; 01BASIS OF COORDINATES:
THE BASIS OF COORDINATES FOR THIS SURVEY IS THE CALIFORNIA COORDINATE SYSTEM OF 7983 (CCS83}, ZONE 6, NAO
83, EPOCH 1991.JS, AS DETERMINED LOCALLY BY THE FOLLOW/NC CITY OF CARLSBAD CONTROL STATIONS AS SHOWN ON
RECORD OF SURVEY NO. 17211. AN ATTEMPT TO LOCATE CONTROL STATION •cLSB-99• WAS MADE BUT THE POINT WAS
FOUND TO NO LONGER EXIST.
EPOCH 1991.35
STATION NAME LA T!Tl/DE (N} LONG/Tl/OE (W} NORTHING {USFT) EASTING {USFT) ELLIP. HT. (USFT}
CLSB-52 3JV7'.J3. 63273. 111'! 9 '02. 09255• 1991146.608 6234928.995 41.474
CLSB-98 3JV8'13.27814• 117'!6'03. 43997" 1995001. 477 6250160.560 226.628
BASIS OF ELEVATIONS:
THE BASIS OF ELEVA T!ONS FOR THIS SURVEY IS THE NA T!ONAL GEODETIC VERTICAL DA Tl/Al OF 1929 (NGVD29} AS
DETERMINED LOCALLY BY HOLD/NC THE ELEVATIONS OF 338.892 FEET FOR CITY OF CARLSBAD CONTROL STATION
, "CLSB-98" AND 160.853 FEET FOR CITY OF CARLSBAD CONTROL STATION ''CLSB-52: BOTH AS SHOWN ON RECORD OF
SURVEY NO. 17271.
COORDINATE TABLE:
EPOCH 1991.35 NCVD29
STA110N NO. STATION NAME NORTH/NC {USFT} EAST/NC {USFT} ORTHO. HT. {USFT) COMB. FACTOR CONV. ANGLE
1 1995363.500 6238569.591 51.323 0. 999962552 -0'.34'48. 1"
2 CLSB-52 1991146.608 6234928.995 160.853 0. 999958333 -0'.35'11.3"
3 CLSB-98 1995001. 477 6250160.560 338.892 0.999949076 -0".33'.JJ. !"
/
CITY OF CARLSBAD
"'"(""; . ""'" ., ................ · .. ;.; ...... .
RECORD OF SURVEY MAP N0.11..1'\"\
PROCEDURE OF SURVEY:
THE SURVEY WAS PERFORMED USING LE/CA v7VA GNSS RECEIVERS. STA 11C CPS OBSERVA 170NS WERE PERFORMED ON MAY
11, 2017. THE BASE STATION WAS SET UP ON POINT 1 WHILE STA110NS CLSB-52 ANO CLSB-98 WERE EACH OCCUPIED
FOR A MINIMUM OF JO MINUTES. THIS PROCESS WAS COMPLETED TWICE WITH THE BASE STA 110N BEING SHUT DOWN ANO
RESTARTED BEFORE THE SECOND SESSION. THE TWO INDEPENDENT OBSERVA110NS WERE SEPARATED BY AT LEAST TWO
HOURS. CPS CARRIER-PHASE DA TA WAS PROCESSED IN LE/CA GEO OFFICE SOFTWARE, VERSION 7. 0.
A CONSTRAINED ADJUSTMENT WAS PERFORMED TO QUALITY CONTROL CHECK TH£ PROCESSED DATA. CITY OF CARLSBAD
CONTROL STATIONS "CLSB-52" AND ''cLSB-98" WERE HELD FIXED IN THE X, Y, AND Z DIREC110NS.
ACCURACY STATEMENT:
HORIZONTAL COORDINATES SHOWN HEREON MEET.THE REQUIREMENTS OF THE CALIFORNIA COORDINATE SYSTEM OF 1983
{CCS83}, SEC110NS 8801-8819 OF THE CALIFORNIA PUBLIC RESOURCES CODE, INCLUDING A LOCAL ACCURACY
CLASSIFICATION OF 1 CENTIMETER (O.OJ FEET) 95% CIRCULAR ERROR PROBABLE ACCORD/NC TO THE FEDERAL GEOGRAPHIC
DA TA COMMITTEE "GEOSPA 11AL POSl110NING ACCURACY STANDARD, PART 2, GEODE17C CONTROL NETWORKS:
FGOC-STD-007.2-1998.
ELEVA 170NS SHOWN HEREON ARE DERIVED CALIFORNIA ORTHOAIETRIC HDGHTS OF 1988 (COH88) IN ACCORDANCE WITH
CHAPTER 5 OF THE CALIFORNIA PUBLIC RESOURCES CODE, INCLUDING A LOCAL ACCURACY CLASS/FICA 170N OF !
CEN11METER {0.03 FEET} 95% ERROR PROBABLE RELATIVE TO THE LOCAL NAVD88 DATUM ACCORDING TO THE FEDERAL
GEOGRAPHIC DATA COMMITTEE "GEOSPA T!AL POSl110N!NG ACCURACY STANDARD, PART 2, GEODE11C CONTROL NETWORKS:
FGDC-STD-001.2-1998.
OESCRIP 110N .
FD. 3• PUNCHED BRASS DISK FLUSH IN CONCRETE, NO TAC, NO REF.
FD. 2.5" BRASS DISK FLUSH IN SIDEWALK ·arr OF CARLSBAD SURVEY CONTROL STA 110N CLSB-052 2001 LS 6215# PER R.S. NO. 17277
FD. 2.5" BRASS DISK FLUSH IN CURB "CITY OF CARLSBAD SURVEY CONTROL STA110N CLSB-098 2001 LS 6215" PER R.S. NO. 17271
pt,J.()JAR A/Rf'ORT
1r1cct.£1.LAN-
I
SHEET 1 OF 1 SHEET
RECORD OF SURVEY:
_ OF A GEODETIC CONTROL NETWORK IN TH£ CITY OF CARLSBAD,
COUNTY OF SAN DIEGO, STATE OF CALIFORNIA.
STATEMENT OF PURPOSE:
THE PURPOSE OF THIS SURVEY IS TO PROv7D£ AN ADD/110NAL
CONTROL POINT FOR THE SAN DIEGO COUNTY WATER AUTHORITY
CARLSBAD DESALINATION CONVEYANCE PIPELINE IMPROVEMENTS.
COORDINATES TO BE PROV/OED IN EPOCH 1991.35 & NGVD29 BY
TYING INTO EX!SllNG PROJECT CONTROL.
SURVEYOR'S STATEMENT:
THIS MAP CORRECTLY REPRESENTS A SURVEY MADE BY ME OR
UNDER MY DIR£Cl70N IN CONFORMANCE WITH TH£ REQUIREMENTS
OF THE PROFESSIONAL LAND SURVEYORS' ACT, AT THE REQUEST
OF TETRA TECH IN MA Y, 2017.
ARMANDO 0. DUPONT
LS. 7780 DATE 8/r/17
COUNTY SURVEYOR'S STATEMENT:
THIS MAP HAS BEEN EXAMINED IN ACCORDANCE WITH
SECTION 8766 OF THE PROFESSIONAL LANO SURVEYORS'
ACT THIS //TN DAY OF At/61/ST , 2011. .
S, LS 7131
COUNTY SURVEYOR
LEGEND & ABBREVIATIONS:
@ = FOUND MONUMENT AS NOTED
CCSB3 = CALIFORNIA COORDINATE SYSTEM OF 1983
CSRC = CALIFORNIA SPATIAL REFERENCE CENTER
NADB3 = NORTH AMERICAN DATUM OF 1983
NGVD29 = NA T!ONAL GEODET!C VERT!CAL DA TUM OF 1929
USFT = U.S. SURVEY FEET
RECORDER'S STATEMENT:
FILE NO. 1,b\1• 1000i~6
:Effoo':1~F ,;;;RO g; ~i;VE~';;~~~ PAGE, 2f!_!!: AT ~i1i:
REQUEST OF TETRA TECH, INC.
FE£· l!0.00 ERNEST J. DRONENBURC, JR.
COUNN~.
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06.tUTy tw~-ry t\1it.t)O.J)'1Q.