














                                  SURVEY CONTROL DATA
                                
                             STATE=AV
                             [JUNE  2, 2012       ]
                              Version = 7.88.2
1        National Geodetic Survey,   Retrieval Date = JUNE  2, 2012
 AB9234 ***********************************************************************
 AB9234  DESIGNATION -  IC 03
 AB9234  PID         -  AB9234
 AB9234  STATE/COUNTY-  AV/
 AB9234  COUNTRY     -  AV
 AB9234  USGS QUAD   -  
 AB9234
 AB9234                         *CURRENT SURVEY CONTROL
 AB9234  ______________________________________________________________________
 AB9234* NAD 83(2007) POSITION- 18 12 39.23090(N) 063 03 11.77084(W)   NO CHECK  
 AB9234* NAD 83(2007) ELLIP HT-   -14.841 (meters)        (02/10/07)   NO CHECK
 AB9234* NAD 83(2007) EPOCH   -  2002.00
 AB9234* LMSL    ORTHO HEIGHT -    26.9    (meters)      88.    (feet) GPS OBS   
 AB9234  ______________________________________________________________________
 AB9234  LMSL orthometric height was determined with geoid model       EGM96
 AB9234  GEOID HEIGHT    -        -44.59  (meters)                     EGM96
 AB9234  GEOID HEIGHT    -        -44.71  (meters)                     CARIB97
 AB9234  NAD 83(2007) X  -  2,746,451.353 (meters)                     COMP
 AB9234  NAD 83(2007) Y  - -5,402,625.917 (meters)                     COMP
 AB9234  NAD 83(2007) Z  -  1,980,566.517 (meters)                     COMP
 AB9234  LAPLACE CORR    -          0.53  (seconds)                    DCAR97
 AB9234
 AB9234  FGDC Geospatial Positioning Accuracy Standards (95% confidence, cm)
 AB9234  Type                                         Horiz  Ellip  Dist(km)
 AB9234  -------------------------------------------------------------------
 AB9234  NETWORK                                       6.51   5.35
 AB9234  -------------------------------------------------------------------
 AB9234  MEDIAN LOCAL ACCURACY AND DIST (001 points)   1.13   4.02      0.72
 AB9234  -------------------------------------------------------------------
 AB9234  NOTE: Click here for information on individual local accuracy
 AB9234  values and other accuracy information.
 AB9234
 AB9234
 AB9234.The horizontal coordinates were established by GPS observations
 AB9234.and adjusted by the National Geodetic Survey in February 2007.
 AB9234
 AB9234.The datum tag of NAD 83(2007) is equivalent to NAD 83(NSRS2007). 
 AB9234.See www.ngs.noaa.gov/web/surveys/NSRS2007 for more information. 
 AB9234
 AB9234.The horizontal coordinates are valid at the epoch date displayed above
 AB9234.which is a decimal equivalence of Year/Month/Day.
 AB9234
 AB9234.No horizontal observational check was made to the station.
 AB9234.
 AB9234.The orthometric height was determined by GPS observations and a
 AB9234.high-resolution geoid model.
 AB9234
 AB9234.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AB9234
 AB9234.The Laplace correction was computed from DCAR97 derived deflections.
 AB9234
 AB9234.The ellipsoidal height was determined by GPS observations
 AB9234.and is referenced to NAD 83.
 AB9234
 AB9234. The following values were computed from the NAD 83(2007) position.
 AB9234
 AB9234;                    North         East     Units Scale Factor Converg.
 AB9234;UTM  20      - 2,013,519.492   494,367.473   MT  0.99960039   -0 00 59.9
 AB9234
 AB9234!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AB9234!UTM  20      -   1.00000233  x   0.99960039  =   0.99960272
 AB9234
 AB9234                          SUPERSEDED SURVEY CONTROL
 AB9234
 AB9234  NAD 83(1996)-  18 12 39.22983(N)    063 03 11.77453(W) AD(       ) 1
 AB9234  ELLIP H (12/09/96)  -14.805  (m)                       GP(       ) 1 1
 AB9234
 AB9234.Superseded values are not recommended for survey control.
 AB9234.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 AB9234.See file dsdata.txt to determine how the superseded data were derived.
 AB9234
 AB9234_U.S. NATIONAL GRID SPATIAL ADDRESS: 20QMF9436713519(NAD 83)
 AB9234
 AB9234_MARKER: DH = HORIZONTAL CONTROL DISK
 AB9234_SETTING: 66 = SET IN ROCK OUTCROP
 AB9234_STAMPING: IC 03 1996
 AB9234_MARK LOGO: NGS   
 AB9234_MAGNETIC: N = NO MAGNETIC MATERIAL
 AB9234_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
 AB9234+STABILITY: POSITION/ELEVATION WELL
 AB9234_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AB9234+SATELLITE: SATELLITE OBSERVATIONS - 1996
 AB9234
 AB9234  HISTORY     - Date     Condition        Report By
 AB9234  HISTORY     - 1996     MONUMENTED       NGS
 AB9234
 AB9234                          STATION DESCRIPTION
 AB9234
 AB9234'DESCRIBED BY NATIONAL GEODETIC SURVEY 1996 (AJL)
 AB9234'THE STATION IS LOCATED IN THE COUNTRY OF ANGUILLA, ABOUT 0.5 MI (0.8
 AB9234'KM) NORTHEAST OF THE WALLBLAKE INTERNATIONAL AIRPORT, 200 FT (61.0 M)
 AB9234'NORTH OF THE DEPARTMENT OF LANDS AND SURVEYS AND ON THE ON THE GROUNDS
 AB9234'OF THE POST OFFICE.  OWNERSHIP--COUNTRY OF ANGUILLA, DEPARTMENT OF
 AB9234'LANDS AND SURVEYS.  TO REACH THE STATION FROM THE MAIN ENTRANCE TO THE
 AB9234'WALLBLAKE INTERNATIONAL AIRPORT GO WEST ON THE PAVED EXIT ROAD FOR 0.1
 AB9234'MI (0.2 KM) TO A T-JUNCTION, TURN LEFT AND GO NORTHERLY ON A PAVED
 AB9234'ROAD FOR 0.15 MI (0.24 KM) TO A PAVED ROAD ON THE LEFT, TURN LEFT AND
 AB9234'GO WESTERLY FOR 0.4 MI (0.6 KM) TO A ROTARY INTERSECTION, USING THE
 AB9234'ROTARY TURN RIGHT AND GO NORTHERLY ON A PAVED ROAD FOR 0.25 MI (0.40
 AB9234'KM) TO A PAVED ROAD LEFT, TURN RIGHT AND GO EAST ON THE PAVED ROAD FOR
 AB9234'0.05 MI (0.08 KM) TO THE GATE TO THE DEPARTMENT OF LANDS AND SURVEYS
 AB9234'ON THE RIGHT AND THE STATION ON THE LEFT.  THE STATION IS A NGS
 AB9234'HORIZONTAL CONTROL MARK STATMPED --IC 03 1996-- SET INTO A DRILL HOLE
 AB9234'IN A 4 FT (1.2 M) BY 2 FT (0.6 M) ROCK OUTCROP, 93.6 FT (28.5 M) WEST
 AB9234'OF THE WESTERNMOST CORNER OF THE COURTHOUSE, 68.0 FT (20.7 M) NORTH OF
 AB9234'THE CENTER OF A EAST-WEST PAVED ROAD, 52.2 FT (15.9 M) SOUTHWEST OF A
 AB9234'TAMARIND TREE, 47.8 FT (14.6 M) SOUTH OF THE SOUTHWESTERNMOST CORNER
 AB9234'OF THE POST OFFICE BUILDING AND 41.1 FT (12.5 M) NORTHWEST OF THE
 AB9234'NORTHWEST EDGE OF A SIDEWALK.
1        National Geodetic Survey,   Retrieval Date = JUNE  2, 2012
 AB9233 ***********************************************************************
 AB9233  DESIGNATION -  POLICE
 AB9233  PID         -  AB9233
 AB9233  STATE/COUNTY-  AV/
 AB9233  COUNTRY     -  AV
 AB9233  USGS QUAD   -  
 AB9233
 AB9233                         *CURRENT SURVEY CONTROL
 AB9233  ______________________________________________________________________
 AB9233* NAD 83(2007) POSITION- 18 13 04.11818(N) 063 03 55.36491(W)   NO CHECK  
 AB9233* NAD 83(2007) ELLIP HT-    26.904 (meters)        (02/10/07)   NO CHECK
 AB9233* NAD 83(2007) EPOCH   -  2002.00
 AB9233* LMSL    ORTHO HEIGHT -    69.3    (meters)     227.    (feet) VERT ANG  
 AB9233  ______________________________________________________________________
 AB9233  GEOID HEIGHT    -        -44.79  (meters)                     CARIB97
 AB9233  NAD 83(2007) X  -  2,745,219.071 (meters)                     COMP
 AB9233  NAD 83(2007) Y  - -5,403,028.385 (meters)                     COMP
 AB9233  NAD 83(2007) Z  -  1,981,306.392 (meters)                     COMP
 AB9233  LAPLACE CORR    -          0.58  (seconds)                    DCAR97
 AB9233
 AB9233  FGDC Geospatial Positioning Accuracy Standards (95% confidence, cm)
 AB9233  Type                                         Horiz  Ellip  Dist(km)
 AB9233  -------------------------------------------------------------------
 AB9233  NETWORK                                       6.66   7.90
 AB9233  -------------------------------------------------------------------
 AB9233  MEDIAN LOCAL ACCURACY AND DIST (001 points)   1.86   7.08      2.00
 AB9233  -------------------------------------------------------------------
 AB9233  NOTE: Click here for information on individual local accuracy
 AB9233  values and other accuracy information.
 AB9233
 AB9233
 AB9233.The horizontal coordinates were established by GPS observations
 AB9233.and adjusted by the National Geodetic Survey in February 2007.
 AB9233
 AB9233.The datum tag of NAD 83(2007) is equivalent to NAD 83(NSRS2007). 
 AB9233.See www.ngs.noaa.gov/web/surveys/NSRS2007 for more information. 
 AB9233
 AB9233.The horizontal coordinates are valid at the epoch date displayed above
 AB9233.which is a decimal equivalence of Year/Month/Day.
 AB9233
 AB9233.No horizontal observational check was made to the station.
 AB9233.
 AB9233.The orthometric height was determined by vertical angle observations.
 AB9233
 AB9233.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AB9233
 AB9233.The Laplace correction was computed from DCAR97 derived deflections.
 AB9233
 AB9233.The ellipsoidal height was determined by GPS observations
 AB9233.and is referenced to NAD 83.
 AB9233
 AB9233. The following values were computed from the NAD 83(2007) position.
 AB9233
 AB9233;                    North         East     Units Scale Factor Converg.
 AB9233;UTM  20      - 2,014,284.766   493,087.338   MT  0.99960059   -0 01 13.6
 AB9233
 AB9233!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AB9233!UTM  20      -   0.99999577  x   0.99960059  =   0.99959636
 AB9233
 AB9233                          SUPERSEDED SURVEY CONTROL
 AB9233
 AB9233  NAD 83(1996)-  18 13 04.11712(N)    063 03 55.36860(W) AD(       ) 1
 AB9233  ELLIP H (12/09/96)   26.940  (m)                       GP(       ) 1 1
 AB9233
 AB9233.Superseded values are not recommended for survey control.
 AB9233.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 AB9233.See file dsdata.txt to determine how the superseded data were derived.
 AB9233
 AB9233_U.S. NATIONAL GRID SPATIAL ADDRESS: 20QMF9308714284(NAD 83)
 AB9233
 AB9233_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION
 AB9233_SETTING: 0 = UNSPECIFIED SETTING
 AB9233_STAMPING: A 4 1956
 AB9233_MAGNETIC: S = STEEL SPIKE IMBEDDED IN MONUMENT
 AB9233_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
 AB9233_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AB9233+SATELLITE: SATELLITE OBSERVATIONS - March 12, 1996
 AB9233
 AB9233  HISTORY     - Date     Condition        Report By
 AB9233  HISTORY     - 1956     MONUMENTED
 AB9233  HISTORY     - 19960312 GOOD             NGS
 AB9233
 AB9233                          STATION DESCRIPTION
 AB9233
 AB9233'DESCRIBED BY NATIONAL GEODETIC SURVEY 1996 (AJL)
 AB9233'THE STATION IS LOCATED IN THE COUNTRY OF ANGUILLA, ABOUT 1.7 MI (2.7
 AB9233'KM) NORTHEAST OF THE WALLBLAKE INTERNATIONAL AIRPORT, ON THE TOP OF
 AB9233'CROCUS HILL AND ON TOP OF A ABOVE GROUND WATER CISTERN.
 AB9233'OWNERSHIP--COUNTRY OF ANGUILLA, DEPARTMENT OF LANDS AND SURVEYS.  TO
 AB9233'REACH THE STATION FROM THE MAIN ENTRANCE TO THE WALLBLAKE
 AB9233'INTERNATIONAL AIRPORT TERMINAL GO WEST ON THE PAVED EXIT ROAD FOR 0.1
 AB9233'MI (0.2 KM) TO A T-JUNCTION, TURN LEFT AND GO NORTHERLY ON A PAVED
 AB9233'ROAD FOR 0.15 MI (0.24 KM) TO A PAVED ROAD ON THE LEFT, TURN LEFT AND
 AB9233'GO WESTERLY FOR 0.4 MI (0.6 KM) TO A ROTARY INTERSECTION, USING THE
 AB9233'ROTARY TURN RIGHT AND GO NORTHERLY ON A PAVED ROAD FOR 8.5 MI (13.7
 AB9233'KM) TO A INTERSECTION WITH A TRAFFIC LIGHT, TURN LEFT AND GO WESTERLY
 AB9233'ON A PAVED ROAD FOR 1.1 MI (1.8 KM) TO A ROAD FORK, BEAR RIGHT AND GO
 AB9233'WESTERLY ON THE PAVED ROAD FOR 0.3 MI (0.5 KM) TO A PAVED ROAD LEFT
 AB9233'(JUST BEFORE CRESTING THE HILL) , TURN LEFT AND GO SOUTHERLY ON THE
 AB9233'PAVED ROAD FOR 0.3 MI (0.5 KM) TO THE STATION ON THE TOP OF THE WATER
 AB9233'CISTERN ON THE LEFT.  THIS IS A ANGUILLA DEPARTMENT OF LANDS AND
 AB9233'SURVEYS TRIGOMETIC STATION WHICH IS A 1.0 FT (0.3 M) BY 1.0 FT (0.3 M)
 AB9233'BY 0.25 HIGH SQUARE CONCRETE MONUMENT WITH A 2 INCH PIPE SET INTO THE
 AB9233'CENTER AND PROJECTING 0.2 FT (6.1 CM) ABOVE THE CONCRETE WHICH IS SET
 AB9233'ON THE TOP CENTER OF A 23.5 FT (7.2 M) BY 23.5 FT (7.2 M) BY 11 FT
 AB9233'(3.4 M) HIGH SQUARE CONCRETE WATER CISTERN, THE HORIZONTAL POINT IS
 AB9233'THE APPROXIMATE CENTER OF THE PIPE AND THE VERTICAL POINT IS THE
 AB9233'HIGHEST PART OF THE PIPE.  NOTE--A LADDER WILL BE REQUIRED TO GET ON
 AB9233'TOP OF THE CISTERN.

 *** retrieval complete.
