HS3492 ***********************************************************************
HS3492  DESIGNATION -  B 738 RESET 1957
HS3492  PID         -  HS3492
HS3492  STATE/COUNTY-  CA/ALAMEDA
HS3492  USGS QUAD   -  ALTAMONT (1981)
HS3492
HS3492                         *CURRENT SURVEY CONTROL
HS3492  ___________________________________________________________________
HS3492* NAD 83(1986)-  37 40 47.     (N)    121 42 20.     (W)     SCALED
HS3492* NAVD 88     -       194.41   (+/-2cm)     637.8    (feet)  VERTCON
HS3492  ___________________________________________________________________
HS3492  GEOID HEIGHT-         -31.97  (meters)                     GEOID99
HS3492
HS3492  VERT ORDER  -  FIRST     CLASS II (See Below)
HS3492
HS3492.The horizontal coordinates were scaled from a topographic map and have
HS3492.an estimated accuracy of +/- 6 seconds.
HS3492
HS3492.The NAVD 88 height was computed by applying the VERTCON shift value to
HS3492.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
HS3492.The vertical order pertains to the superseded datum.
HS3492
HS3492.The geoid height was determined by GEOID99.
HS3492
HS3492;                    North         East    Units  Estimated Accuracy
HS3492;SPC CA 3     -   631,610.    1,893,670.      MT  (+/- 180 meters Scaled)
HS3492
HS3492                          SUPERSEDED SURVEY CONTROL
HS3492
HS3492  NGVD 29     -       193.593  (m)          635.15   (f) ADJ UNCH    1 2
HS3492
HS3492.Superseded values are not recommended for survey control.
HS3492.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HS3492.See file dsdata.txt to determine how the superseded data were derived.
HS3492
HS3492_MARKER: DB = BENCH MARK DISK
HS3492_SETTING: 30 = MANHOLE COVER
HS3492_STAMPING: B 738 1944 RESET 1957
HS3492_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
HS3492
HS3492  HISTORY     - Date     Condition        Recov. By
HS3492  HISTORY     - 1957     MONUMENTED       CGS
HS3492  HISTORY     - 1958     GOOD             NGS
HS3492  HISTORY     - 1960     GOOD             NGS
HS3492  HISTORY     - 1989     GOOD             USPSQD
HS3492
HS3492                          STATION DESCRIPTION
HS3492
HS3492''DESCRIBED BY NATIONAL GEODETIC SURVEY 1958
HS3492''6.3 MI SW FROM ALTAMONT.
HS3492''3.5 MILES SOUTHWEST ALONG THE SOUTHERN PACIFIC COMPANY RAILROAD
HS3492''FROM THE ABANDONED STATION AT ALTAMONT, THENCE 2.3 MILES SOUTH
HS3492''ALONG GREENVILLE ROAD, THENCE 0.5 MILE WEST ALONG EAST AVENUE, IN
HS3492''R2E T3S S12, AT THE U.S. ATOMIC ENERGY COMMISSION, AT THE MAIN
HS3492''GATE, IN THE TOP OF THE NORTHWEST CORNER OF A CONCRETE COVER FOR
HS3492''A MANHOLE, 25.6 FEET WEST OF THE WEST CURB OF A AVENUE, 18.2
HS3492''FEET SOUTH OF THE SOUTHEAST CORNER OF BUILDING 133 (SECURITY
HS3492''OFFICE), 11.8 FEET NORTH OF THE NORTH CURB OF AN ACCESS ROAD
HS3492''LEADING WEST, 11 FEET NORTH OF A FIRE HYDRANT, 2.6 FEET NORTHWEST
HS3492''OF THE NORTHWEST EDGE OF AN IRON MANHOLE COVER DOOR, AND ABOUT
HS3492''LEVEL WITH THE SIDEWALK.
HS3492
HS3492                          STATION RECOVERY (1960)
HS3492
HS3492''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1960
HS3492''RECOVERED IN GOOD CONDITION.
HS3492
HS3492                          STATION RECOVERY (1989)
HS3492
HS3492''RECOVERY NOTE BY US POWER SQUADRON 1989 (LK)
HS3492''RECOVERED IN GOOD CONDITION.