EW1825 ***********************************************************************
EW1825  DESIGNATION -  SIERRA MADRE G 6
EW1825  PID         -  EW1825
EW1825  STATE/COUNTY-  CA/LOS ANGELES
EW1825  USGS QUAD   -  MOUNT WILSON (1994)
EW1825
EW1825                         *CURRENT SURVEY CONTROL
EW1825  ___________________________________________________________________
EW1825* NAD 83(1986)-  34 09 02.     (N)    118 02 38.     (W)     SCALED
EW1825* NAVD 88     -       180.967  (meters)     593.72   (feet)  READJUSTED
EW1825  ___________________________________________________________________
EW1825  GEOID HEIGHT-         -33.73  (meters)                     GEOID99
EW1825  DYNAMIC HT  -         180.770 (meters)     593.08  (feet)  COMP
EW1825  MODELED GRAV-     979,556.8   (mgal)                       NAVD 88
EW1825
EW1825  VERT ORDER  -  * READJUSTED, Code A , SEE BELOW
EW1825
EW1825.The horizontal coordinates were scaled from a topographic map and have
EW1825.an estimated accuracy of +/- 6 seconds.
EW1825
EW1825.The orthometric height was determined by differential leveling
EW1825.and adjusted by the National Geodetic Survey in February 1993.
EW1825.* This is a READJUSTED BENCH MARK height.  Code A indicates a
EW1825.distribution rate of 0.0 thru 1.0 mm/km.
EW1825.The height was derived from older observations constrained to new
EW1825.heights in a crustal motion area.  The height is approximate in
EW1825.relation to other heights in its vicinity.
EW1825
EW1825.The geoid height was determined by GEOID99.
EW1825
EW1825.The dynamic height is computed by dividing the NAVD 88
EW1825.geopotential number by the normal gravity value computed on the
EW1825.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
EW1825.degrees latitude (G = 980.6199 gals.).
EW1825
EW1825.The modeled gravity was interpolated from observed gravity values.
EW1825
EW1825;                    North         East    Units  Estimated Accuracy
EW1825;SPC CA 5     -   572,160.    1,995,950.      MT  (+/- 180 meters Scaled)
EW1825
EW1825                          SUPERSEDED SURVEY CONTROL
EW1825
EW1825  NGVD 29     -       180.180  (m)          591.14   (f) ADJ UNCH    1 1
EW1825
EW1825.Superseded values are not recommended for survey control.
EW1825.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
EW1825.See file dsdata.txt to determine how the superseded data were derived.
EW1825
EW1825_MARKER: DE = TRAVERSE STATION DISK
EW1825_SETTING: 45 = WELL
EW1825_STAMPING: SIERRA MADRE G 6 1940 2177
EW1825_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
EW1825+STABILITY: POSITION/ELEVATION WELL
EW1825
EW1825  HISTORY     - Date     Condition        Recov. By
EW1825  HISTORY     - 1940     MONUMENTED       CA-037
EW1825  HISTORY     - 1968     GOOD             CA-037
EW1825  HISTORY     - 1978     GOOD             NGS
EW1825  HISTORY     - 1987     GOOD             NGS
EW1825
EW1825                          STATION DESCRIPTION
EW1825
EW1825''DESCRIBED BY LOS ANGELES COUNTY CALIFORNIA 1968
EW1825''1 MI NW FROM ARCADIA.
EW1825''ARCADIA, 1.0 MI NW OF THE CITY HALL, FOOTHILL BLVD AND BURNELL
EW1825''OAKS LANE, 69.0 FEET E OF THE CENTERLINE OF BURNELL OAKS LANE
EW1825''AND 1.0 FOOT NORTH OF THE CENTERLINE OF FOOTHILL BLVD, SET
EW1825''BELOW THE SURFACE IN A WELL AND PROTECTED BY A CAST IRON COVER
EW1825''MARKED COUNTY SURVEYOR MONUMENT.
EW1825
EW1825                          STATION RECOVERY (1978)
EW1825
EW1825''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978
EW1825''RECOVERED IN GOOD CONDITION.
EW1825
EW1825                          STATION RECOVERY (1987)
EW1825
EW1825''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987
EW1825''RECOVERED IN GOOD CONDITION.  NEW DESCRIPTION FOLLOWS.  1.2 KM (0.75
EW1825''MI) WEST ALONG FOOTHILL BOULEVARD FROM THE INTERSECTION OF SANTA
EW1825''ANITA AVENUE IN ARCADIA, 0.3 M (1.0 FT) NORTH OF THE BOULEVARD
EW1825''CENTERLINE, 21.3 M (69.9 FT) EAST OF THE CENTERLINE OF BURNELL OAKS
EW1825''LANE, 9.4 M (30.8 FT) WEST OF THE WEST END OF A TRAFFIC ISLAND.  THE
EW1825''MARK IS 0.3 M (1.0 FT) BELOW THE PAVEMENT AND MAY BE ACCESSED THROUGH
EW1825''A 12-INCH DIAMETER ROUND IRON LID.