1    National Geodetic Survey, Retrieval Date = NOVEMBER  4, 2025 13:57:32 EST
 AJ8036 ***********************************************************************
 AJ8036  FBN         -  This is a Federal Base Network Control Station.
 AJ8036  TIDAL BM    -  This is a Tidal Bench Mark.
 AJ8036  DESIGNATION -  857 7330 E TIDAL
 AJ8036  PID         -  AJ8036
 AJ8036  STATE/COUNTY-  MD/CALVERT
 AJ8036  COUNTRY     -  US
 AJ8036  USGS QUAD   -  SOLOMONS ISLAND (2016)
 AJ8036
 AJ8036                         *CURRENT SURVEY CONTROL
 AJ8036  ______________________________________________________________________
 AJ8036* NAD 83(2011) POSITION- 38 19 10.23204(N) 076 27 11.46590(W)   ADJUSTED
 AJ8036* NAD 83(2011) ELLIP HT-   -31.350 (meters)        (06/27/12)   ADJUSTED
 AJ8036* NAD 83(2011) EPOCH   -  2010.00
 AJ8036* NAVD 88 ORTHO HEIGHT -     3.0   (meters)       10.    (feet) GPS OBS
 AJ8036  ______________________________________________________________________
 AJ8036  NAVD 88 orthometric height was determined with geoid model    GEOID99
 AJ8036  GEOID HEIGHT    -        -34.334 (meters)                     GEOID99
 AJ8036  GEOID HEIGHT    -        -34.406 (meters)                     GEOID18
 AJ8036  NAD 83(2011) X  -  1,173,656.641 (meters)                     COMP
 AJ8036  NAD 83(2011) Y  - -4,871,094.637 (meters)                     COMP
 AJ8036  NAD 83(2011) Z  -  3,933,310.565 (meters)                     COMP
 AJ8036  LAPLACE CORR    -         -5.26  (seconds)                    DEFLEC18
 AJ8036
 AJ8036  Network accuracy estimates per FGDC Geospatial Positioning Accuracy
 AJ8036  Standards:
 AJ8036         FGDC (95% conf, cm)     Standard deviation (cm)     CorrNE
 AJ8036            Horiz  Ellip           SD_N   SD_E   SD_h      (unitless)
 AJ8036  -------------------------------------------------------------------
 AJ8036  NETWORK    0.92   1.92           0.40   0.35   0.98      0.02401171
 AJ8036  -------------------------------------------------------------------
 AJ8036  Click here for local accuracies and other accuracy information.
 AJ8036
 AJ8036.This is a reference station for the SOLOMONS ISLAND
 AJ8036.National Continuously Operating Reference Station (SOL1).
 AJ8036
 AJ8036.The horizontal coordinates were established by GPS observations
 AJ8036.and adjusted by the National Geodetic Survey in June 2012.
 AJ8036
 AJ8036.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has 
 AJ8036.been affixed to the stable North American tectonic plate. See 
 AJ8036.NA2011 for more information. 
 AJ8036
 AJ8036.The horizontal coordinates are valid at the epoch date displayed above
 AJ8036.which is a decimal equivalence of Year/Month/Day.
 AJ8036
 AJ8036.The orthometric height was determined by GPS observations and a
 AJ8036.high-resolution geoid model.
 AJ8036
 AJ8036.Significant digits in the geoid height do not necessarily reflect accuracy.
 AJ8036.GEOID18 height accuracy estimate available here.
 AJ8036
 AJ8036.This Tidal Bench Mark is designated as VM 455
 AJ8036.by the CENTER FOR OPERATIONAL OCEANOGRAPHIC PRODUCTS AND SERVICES.
 AJ8036
 AJ8036.Click photographs - Photos may exist for this station.
 AJ8036
 AJ8036
 AJ8036.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AJ8036
 AJ8036.The Laplace correction was computed from DEFLEC18 derived deflections.
 AJ8036
 AJ8036.The ellipsoidal height was determined by GPS observations
 AJ8036.and is referenced to NAD 83.
 AJ8036
 AJ8036. The following values were computed from the NAD 83(2011) position.
 AJ8036
 AJ8036;                    North         East     Units Scale Factor Converg.
 AJ8036;SPC MD       -    72,611.601   447,818.538   MT  0.99999666   +0 20 35.5
 AJ8036;SPC MD       -   238,226.56  1,469,217.99   sFT  0.99999666   +0 20 35.5
 AJ8036;UTM  18      - 4,242,265.156   372,966.601   MT  0.99979874   -0 54 04.2
 AJ8036
 AJ8036!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AJ8036!SPC MD       -   1.00000492  x   0.99999666  =   1.00000158
 AJ8036!UTM  18      -   1.00000492  x   0.99979874  =   0.99980366
 AJ8036
 AJ8036_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH7296642265(NAD 83)
 AJ8036
 AJ8036|---------------------------------------------------------------------|
 AJ8036| PID    Reference Object                     Distance      Geod. Az  |
 AJ8036|                                                           dddmmss.s |
 AJ8036| AI3287 SOLOMONS ISLAND CORS ARP             94.159 METERS 22059     |
 AJ8036|---------------------------------------------------------------------|
 AJ8036
 AJ8036                          SUPERSEDED SURVEY CONTROL
 AJ8036
 AJ8036  NAD 83(2007)-  38 19 10.23223(N)    076 27 11.46657(W) AD(2002.00) 0
 AJ8036  ELLIP H (02/10/07)  -31.329  (m)                       GP(2002.00)    
 AJ8036  NAD 83(1991)-  38 19 10.23175(N)    076 27 11.46708(W) AD(       ) A
 AJ8036  ELLIP H (02/12/02)  -31.324  (m)                       GP(       ) 4 1
 AJ8036
 AJ8036.Superseded values are not recommended for survey control.
 AJ8036
 AJ8036.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 AJ8036.See file dsdata.pdf to determine how the superseded data were derived.
 AJ8036
 AJ8036_MARKER: DJ = TIDAL STATION DISK
 AJ8036_SETTING: 47 = GALVANIZED STEEL PIPE W/O SLEEVE (10 FT.+)
 AJ8036_STAMPING: 7330 E 1980
 AJ8036_MARK LOGO: NOS
 AJ8036_PROJECTION: RECESSED 3 CENTIMETERS
 AJ8036_MAGNETIC: N = NO MAGNETIC MATERIAL
 AJ8036_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
 AJ8036_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AJ8036+SATELLITE: SATELLITE OBSERVATIONS - May 29, 2023
 AJ8036_ROD/PIPE-DEPTH: 12 meters
 AJ8036
 AJ8036  HISTORY     - Date     Condition        Report By
 AJ8036  HISTORY     - 1980     MONUMENTED       NOS
 AJ8036  HISTORY     - 20000216 GOOD             NGS
 AJ8036  HISTORY     - 20230529 GOOD             MDSHA
 AJ8036
 AJ8036                          STATION DESCRIPTION
 AJ8036
 AJ8036'DESCRIBED BY NATIONAL GEODETIC SURVEY 2000 (MLM)
 AJ8036'THE STATION IS LOCATED IN SOLOMONS ON THE SOUTHEAST SIDE OF THE
 AJ8036'ENTRANCE DRIVE OF THE SOLOMONS MARINA ON CHARLES STREET AND LOCATED
 AJ8036'JUST SOUTH OF THE JUNCTION OF CHARLES AND WILLIAMS STREET.
 AJ8036'OWNERSHIP--CITY OF SOLOMONS ISLAND.  TO REACH THE STATION FROM THE
 AJ8036'JUNCTION OF STATE HIGHWAYS 2 AND 4 LOCATED AT THE NORTHEAST END OF THE
 AJ8036'HIGHWAY 4 BRIDGE OVER THE PATUXENT RIVER AND AT THE VISITOR CENTER
 AJ8036'(REST AREA) ON THE NORTH SIDE OF SOLOMONS, GO SOUTH ON HIGHWAY 2 FOR
 AJ8036'1.53 KM (0.95 MI) TO THE JUNCTION OF CHARLES AND PATUXENT STREETS IN
 AJ8036'SOLOMONS, BEAR LEFT, ON CHARLES STREET, SOUTHEASTERLY FOR 0.4 KM (0.25
 AJ8036'MI) TO THE ENTRANCE OF THE SOLOMONS MARINA AND THE STATION ON THE
 AJ8036'SOUTHEAST SIDE OF THE ENTRANCE DRIVE.  THE STATION IS AN NOS TIDAL
 AJ8036'DISK CRIMPED TO THE TOP OF A GALVANIZED STEEL ROD, ENCASED IN A 10 CM
 AJ8036'PVC PIPE ABOUT 8 CM BELOW THE GROUND, LOCATED 6.40 M (21.00 FT)
 AJ8036'NORTHEAST OF THE CENTER OF CHARLES STREET, 2.02 M (6.63 FT) NORTH OF
 AJ8036'THE WEST CORNER POST OF A CHAIN LINK FENCE, 1.83 M (6.00 FT) SOUTHWEST
 AJ8036'OF THE SOUTHWEST WOOD POST SUPORTING A SIGN (SOLOMONS MARINA) , 1.56 M
 AJ8036'(5.12 FT) WEST-SOUTHWEST OF THE SOUTH CORNER OF A WOOD POST SHRUB
 AJ8036'PLANTER AROUND THE MARINA SIGN, 1.04 M (3.41 FT) NORTHWEST OF THE
 AJ8036'FENCE AND 0.25 M (0.82 FT) SOUTHWEST OF A FIBERGLASS WITNESS POST.
 AJ8036
 AJ8036                          STATION RECOVERY (2023)
 AJ8036
 AJ8036'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2023 (EBD)
 AJ8036'RECOVERED IN GOOD CONDITION.

Log: Recovered in good condition on Tuesday, 11/04/2025 at 4:05pm EST. This was easy to locate, because the witness post is intact, and the concrete setting currently protrudes about 4-6″ above the ground. The disc is mounted as described, with a hinged lid covering the PVC pipe. I got a good photo of the setting and witness post, but my photo of the disc turned out blurry.