U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  5

                                                                                
Station ID: 8534043                         PUBLICATION DATE:  05/12/2004
Name:       WADING RIVER                                      
            NJ
NOAA Chart: 12316                           Latitude:   39° 37.1' N (  39.61830)
USGS Quad:  OSWEGO LAKE                     Longitude:  74° 29.8' W ( -74.49670)


To reach the tidal bench marks proceed 4.8 km (3.0 mi) WNW along Couty Route 542
from the Garden State Parkway to the intersection with County Road 653 and the
Route 542 bridge over the Wading River.  The bench marks are in the near area
and along County Road 653 (Leektown Road).  The tide gage and staff were at the
eastern end of the bridge.


                         T I D A L   B E N C H   M A R K S


                 PRIMARY BENCH MARK STAMPING:  4043 A 1977
                         DESIGNATION:          853 4043 A TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         2610
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Copper clad steel rod                 OPUS PID:        
LATITUDE:   39° 37.1' N (  39.61830)          LONGITUDE:  74° 29.8' W ( -74.49670)


The primary bench mark is a disk located near the intersection of County Route
542 and Golddecker Road, 22.68 m (74.4 ft) north of the centerline of Route 542,
13.78 m (45.2 ft) NE of utility pole No. P12941, 7.32 m (24.0 ft) east of a wood
guard rail along the west side of Golddecker Road, and 1.83 m (6.0 ft) east of
the east side of Golddecker Road.  The bench mark is set 6 cm (0.2 ft) below
ground level, crimped to the top of a copper-coated steel rod driven 15.2 m (50
ft), and encased in a PVC pipe and concrete kickblock.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  5

                                                                                
Station ID: 8534043                         PUBLICATION DATE:  05/12/2004
Name:       WADING RIVER                                      
            NJ
NOAA Chart: 12316                           Latitude:   39° 37.1' N (  39.61830)
USGS Quad:  OSWEGO LAKE                     Longitude:  74° 29.8' W ( -74.49670)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  4043 B 1977
                         DESIGNATION:          853 4043 B TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         2611
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Copper clad steel rod                 OPUS PID:        
LATITUDE:   39° 37.1' N (  39.61830)          LONGITUDE:  74° 29.8' W ( -74.49670)


The bench mark is a disk located NE of bench mark 4043 A 1977, 24.90 m (81.7 ft)
east of the NE corner of a two-story wood frame house, 13.35 m (43.8 ft) north
of utility pole No. P35355, 9.66 m (31.7 ft) NW of the SE side of Route 653, and
3.72 m (12.2 ft) NW of the NW side of Route 653 (Leektown Road).  The bench mark
is set 6 cm (0.2 ft) below ground level, crimped to the top of a copper-coated
steel rod driven 15.2 m (50 ft), and encased in a PVC pipe and concrete
kickblock.



                         BENCH MARK STAMPING:  4043 C 1977
                         DESIGNATION:          853 4043 C TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         2612
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Copper clad steel rod                 OPUS PID:        
LATITUDE:   39° 37.1' N (  39.61830)          LONGITUDE:  74° 29.8' W ( -74.49670)


The bench mark is a disk located 72.09 m (236.5 ft) NE of bench mark 4043 B
1977, 11.03 m (36.2 ft) NW of the SE edge and 4.79 m (15.7 ft) NW of the NW edge
of Leektown Road, and 7.68 m (25.2 ft) SW of a 9 cm (0.3 ft) square concrete
monument.  The bench mark is set 6 cm (0.2 ft) below ground level, crimped to
the top of a copper-coated steel rod driven 11.9 m (39 ft) to refusal, and
encased in a PVC pipe and concrete kickblock.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  5

                                                                                
Station ID: 8534043                         PUBLICATION DATE:  05/12/2004
Name:       WADING RIVER                                      
            NJ
NOAA Chart: 12316                           Latitude:   39° 37.1' N (  39.61830)
USGS Quad:  OSWEGO LAKE                     Longitude:  74° 29.8' W ( -74.49670)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  4043 D 1977
                         DESIGNATION:          853 4043 D TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         2613
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Copper clad steel rod                 OPUS PID:        
LATITUDE:   39° 37.1' N (  39.61830)          LONGITUDE:  74° 29.8' W ( -74.49670)


The bench mark is a disk located 104.61 m (343.2 ft) NE of bench mark 4043 C
1977, 12 m (39.0 ft) NW of the SE edge of Leektown Road, and 11.28 m (37.0 ft)
NE of the south support of the wood campground sign at the center of the
entrance to Chips Folly Campground.  The bench mark is set 6 cm (0.2 ft) below
ground level, crimped to the top of a copper-coated steel rod driven 15.2 m (50
ft), and encased in a PVC pipe and concrete kickblock.



                         BENCH MARK STAMPING:  17896
                         DESIGNATION:          853 4043 17896

MONUMENTATION:           Survey disk                           VM#:         2614
AGENCY:                  New Jersey Department of Conservation IDB PID#:        
SETTING CLASSIFICATION:  Concrete post                         OPUS PID:        
LATITUDE:   39° 37.1' N (  39.61830)          LONGITUDE:  74° 29.8' W ( -74.49670)


The bench mark is a disk set on the top of a concrete post at the NE end of the
County Route 542 bridge over the Wading River, 38.04 m (124.8 ft) west of the SW
corner of a two-story wood frame house, 7.32 m (24.0 ft) north of the centerline
of Route 542, 2.74 m (9.0 ft) south of the steel guard rail, and level with the
road surface.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  5

                                                                                
Station ID: 8534043                         PUBLICATION DATE:  05/12/2004
Name:       WADING RIVER                                      
            NJ
NOAA Chart: 12316                           Latitude:   39° 37.1' N (  39.61830)
USGS Quad:  OSWEGO LAKE                     Longitude:  74° 29.8' W ( -74.49670)


                            T I D A L   D A T U M S 


Tidal datums at WADING RIVER based on:

     LENGTH OF SERIES:      6 MONTHS
     TIME PERIOD:           June 1977 - November 1977
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8557380 LEWES, FT. MILES


Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:

     MEAN HIGHER HIGH WATER                     MHHW   =  1.030
     MEAN HIGH WATER                            MHW    =  0.955
     MEAN SEA LEVEL                             MSL    =  0.553
     MEAN TIDE LEVEL                            MTL    =  0.501
     MEAN LOW WATER                             MLW    =  0.047
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     4043 A 1977                                 2.586    1.631
     4043 B 1977                                 4.074    3.119
     4043 C 1977                                 5.432    4.477
     4043 D 1977                                 6.178    5.223
     17896                                       3.575    2.620


                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  5

                                                                                
Station ID: 8534043                         PUBLICATION DATE:  05/12/2004
Name:       WADING RIVER                                      
            NJ
NOAA Chart: 12316                           Latitude:   39° 37.1' N (  39.61830)
USGS Quad:  OSWEGO LAKE                     Longitude:  74° 29.8' W ( -74.49670)


                             D E F I N I T I O N S


Mean Sea Level (MSL) is a tidal datum determined over a 19-year National Tidal
Datum Epoch.  It pertains to local mean sea level and should not be confused
with the fixed datums of North American Vertical Datum of 1988 (NAVD88).

NAVD88 is a fixed datum derived from a simultaneous, least squares, minimum
constraint adjustment of Canadian/Mexican/United States leveling observations.
Local mean sea level observed at Father Point/Rimouski, Canada was held fixed as
the single initial constraint.  NAVD88 replaces NGVD29 as the national
standard geodetic reference for heights.  Bench mark elevations relative to
NAVD88 are available from NGS through the World Wide Web at 
National Geodetic Survey.

NGVD29 is a fixed datum adopted as a national standard geodetic reference for
heights but is now considered superseded.  NGVD29 is sometimes referred to as
Sea Level Datum of 1929 or as Mean Sea Level on some early issues of Geological
Survey Topographic Quads.  NGVD29 was originally derived from a general
adjustment of the first-order leveling networks of the U.S. and Canada after
holding mean sea level observed at 26 long term tide stations as fixed.
Numerous local and wide-spread adjustments have been made since establishment in
1929.  Bench mark elevations relative to NGVD29 are available from the National
Geodetic Survey (NGS) data base via the World Wide Web at 
National Geodetic Survey.

NAVD88 and NGVD29 are fixed geodetic datums whose elevation relationships to
local MSL and other tidal datums may not be consistent from one location to
another.

The Vertical Mark Number (VM#) and PID# shown on the bench mark sheet are unique
identifiers for bench marks in the tidal and geodetic databases, respectively.
Each bench mark in either database has a single, unique VM# and/or PID# assigned.
Where both VM# and PID# are indicated, both tidal and geodetic elevations are
available for the bench mark listed. The NGS's Integrated Data Base (IDB PID)
provides geodetic datum based on traditionally leveled and bluebooked ties to
the National Spatial Reference System(NSRS) https://www.ngs.noaa.gov/datasheets/.
The NGS Online Positioning User Service (OPUS PID) provides geodetic datum based
on GPS position & tie it to the NSRS https://www.ngs.noaa.gov/OPUS/.

The NAVD88 elevation is shown on the Elevations of Tidal Datums Table Referred
to MLLW only when two or more of the bench marks listed have NAVD88 elevations.
The NAVD88 elevation relationship shown in the table is derived from an average
of several bench mark elevations relative to tide station datum.  As a result of
this averaging, NAVD88 bench mark elevations computed indirectly from the tidal
datums elevation table may differ slightly from NAVD88 elevations listed for
each bench mark in the NGS database.