U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  6

                                                                                
Station ID: 9440357                         PUBLICATION DATE:  03/01/2017
Name:       TEMCO KALAMA TERMINAL, COLUMBIA RIVER             
            WA
NOAA Chart: 18524                           Latitude:   45° 59.2' N (  45.98667)
USGS Quad:  DEER ISLAND                     Longitude: 122° 50.2' W (-122.83667)


To reach the tidal bench marks from the US Post Office at 451 N 1st St in
Kalama, proceed 0.4 km (0.3 mi) south on N 1st St to the intersection with Elm
St, turn right onto Elm St and proceed 0.1 km (0.1 mi) west to the entrance ramp
for I-5 South, turn left onto the entrance ramp and proceed south on I-5 3.0 km
(1.9 mi) to exit 27 toward Todd Rd/Port of Kalama, continue south 0.4 km (0.3
mi) on the exit ramp to the intersection with Robb Rd, turn right onto Robb Rd
proceed west 30 m (100 ft) to the T intersection with Dupont Rd, turn right onto
Dupont Rd and proceed north 0.3 km (0.2 mi) continuing as the road changes to
Port Road, continue onto Toteff Rd as the road turns to the west and proceed 0.3
km (0.2 mi) through two railroad crossings into the Temco Kalama facility,
continue north 0.9 km (0.6 mi) through the Temco Kalama facility to the grain
transfer dock at the north end of the facility. The bench marks are located from
the barge dock, along the access road to the south, and to the east side of the
I-5 exit 27 interchange. The tide gauge is located at the west end of the grain
transfer dock at the north end of the facility.


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


                 PRIMARY BENCH MARK STAMPING:  0357 B 2016
                         DESIGNATION:          944 0357 B

MONUMENTATION:           Bench Mark disk                       VM#:        22048
AGENCY:                  National Ocean Service                IDB PID#:        
SETTING CLASSIFICATION:  Large concrete footing                OPUS PID:        
LATITUDE:   45° 59.2' N (  45.98628)          LONGITUDE: 122° 50.1' W (-122.83558)


The primary bench mark is a disk set in a footing for a vertical support
structure for an overhead conveyor, 37.40 m (122.7 ft) WSW of the North face of
the grain storage tanks, 31.95 m (104.8 ft) SE of the SE corner of the footing
for the conveyor to the North, 22.56 m (74.0 ft) NW of the NE corner of the
concrete footing for the conveyor to the South, 13.35 m (43.8 ft) SW of the edge
of pavement, 0.39 m (1.3 ft) WSW of the East edge of the concrete footing and
0.20 m (0.7 ft) above grade.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  6

                                                                                
Station ID: 9440357                         PUBLICATION DATE:  03/01/2017
Name:       TEMCO KALAMA TERMINAL, COLUMBIA RIVER             
            WA
NOAA Chart: 18524                           Latitude:   45° 59.2' N (  45.98667)
USGS Quad:  DEER ISLAND                     Longitude: 122° 50.2' W (-122.83667)


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


                         BENCH MARK STAMPING:  0357 A 2016
                         DESIGNATION:          944 0357 A

MONUMENTATION:           Bench Mark disk                       VM#:        22049
AGENCY:                  National Ocean Service                IDB PID#:        
SETTING CLASSIFICATION:  Large concrete landing                OPUS PID:        
LATITUDE:   45° 59.2' N (  45.98694)          LONGITUDE: 122° 50.2' W (-122.83619)


The bench mark is a disk set in the retaining wall of a concrete landing at
North pier of the TEMCO Kalama facility, 19.87 m (65.2 ft) NW of the NE support
for the overhead conveyor to the South, 15.35 m (50.4 ft) SW of the SW corner of
a brick building, 8.65 m (28.4 ft) SSE of the SW support for the overhead
conveyor to the North, 6.05 m (19.8 ft) South of the NW corner of the landing,
0.91 m (3.0 ft) East of the SW corner of the landing and 0.80 m (2.6 ft) above
grade of the wall.



                         BENCH MARK STAMPING:  0357 C 2016
                         DESIGNATION:          944 0357 C

MONUMENTATION:           Bench Mark disk                       VM#:        22050
AGENCY:                  National Ocean Service                IDB PID#:        
SETTING CLASSIFICATION:  Large concrete footing                OPUS PID:        
LATITUDE:   45° 59.1' N (  45.98522)          LONGITUDE: 122° 50.1' W (-122.83475)


The bench mark is a disk set in a footing for a vertical support structure for
an overhead conveyor, 49.86 m (163.6 ft) NW of the NE corner of a shop building,
31.95 m (104.8 ft) SSE of the SE corner of the footing for the conveyor to the
North, 22.36 m (73.4 ft) WSW of the East face of a grain storage tank marked
803, 12.65 m (41.5 ft) WSW of the edge of the pavement, 0.45 m (1.5 ft) WSW of
the East edge of the footing and 0.21 m (0.7 ft) above grade.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  6

                                                                                
Station ID: 9440357                         PUBLICATION DATE:  03/01/2017
Name:       TEMCO KALAMA TERMINAL, COLUMBIA RIVER             
            WA
NOAA Chart: 18524                           Latitude:   45° 59.2' N (  45.98667)
USGS Quad:  DEER ISLAND                     Longitude: 122° 50.2' W (-122.83667)


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


                         BENCH MARK STAMPING:  0357 D 2016
                         DESIGNATION:          944 0357 D

MONUMENTATION:           Bench Mark disk                       VM#:        22051
AGENCY:                  National Ocean Service                IDB PID#:        
SETTING CLASSIFICATION:  Large concrete footing                OPUS PID:        
LATITUDE:   45° 59.0' N (  45.98392)          LONGITUDE: 122° 50.0' W (-122.83344)


The bench mark is a disk set in a concrete footing for a vertical support
structure for an overhead conveyor across from the main pier, 25.17 m (82.6 ft)
NE of the NE corner of the main office building, 13.52 m (44.4 ft) NNW of the NW
corner of an oil tank, 6.19 m (20.3 ft) NE of the edge of pavement, 6.05 m (19.8
ft) SSE of the center of a guard rail post to the North, and 0.80 m (2.6 ft) NNE
of the NW corner of the footing pad.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  6

                                                                                
Station ID: 9440357                         PUBLICATION DATE:  03/01/2017
Name:       TEMCO KALAMA TERMINAL, COLUMBIA RIVER             
            WA
NOAA Chart: 18524                           Latitude:   45° 59.2' N (  45.98667)
USGS Quad:  DEER ISLAND                     Longitude: 122° 50.2' W (-122.83667)


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


                         BENCH MARK STAMPING:  C 534 1987
                         DESIGNATION:          C 534

MONUMENTATION:           Metal Rod                             VM#:        22052
AGENCY:                  National Geodetic Survey              IDB PID#:  RD1576
SETTING CLASSIFICATION:                                        OPUS PID:        
LATITUDE:   45° 58.9' N (  45.98125)          LONGITUDE: 122° 49.4' W (-122.82397)


The bench mark is a flange encased rod at the NW corner of the intersection of
Robb road and Todd road, 30.75 m (100.9 ft) WNW of a stop sign, 29.71 m (97.5
ft) NW of the I-5 entrance ramp sign, 20.25 m (66.4 ft) WSW of the edge of
pavement of Robb road, 15.95 m (52.3 ft) NE of the edge of pavement of the
northbound I-5 entrance ramp, 0.72 m (2.4 ft) West of a metal end post to a
barbed wire fence, and 0.71 m (2.3 ft) ESE of a witness post. The datum point is
set 0.2 cm (1 inch) below grade being the top of a stainless steel rod and
encased in a 5-inch national geodetic survey logo cover with kick block.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  6

                                                                                
Station ID: 9440357                         PUBLICATION DATE:  03/01/2017
Name:       TEMCO KALAMA TERMINAL, COLUMBIA RIVER             
            WA
NOAA Chart: 18524                           Latitude:   45° 59.2' N (  45.98667)
USGS Quad:  DEER ISLAND                     Longitude: 122° 50.2' W (-122.83667)


                            T I D A L   D A T U M S 


Tidal datums at TEMCO KALAMA TERMINAL, COLUMBIA RIVER based on:

     LENGTH OF SERIES:      3 MONTHS
     TIME PERIOD:           August 2016 - October 2016
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  9439040 ASTORIA, TONGUE POINT, COLUMBIA RIVER


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

     MEAN HIGHER HIGH WATER                     MHHW   =  1.105
     MEAN HIGH WATER                            MHW    =  0.964
     MEAN TIDE LEVEL                            MTL    =  0.526
     MEAN SEA LEVEL                             MSL    =  0.507
     MEAN LOW WATER                             MLW    =  0.089
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     0357 B 2016                                 7.554    6.590
     0357 A 2016                                 7.775    6.811
     0357 C 2016                                 7.095    6.131
     0357 D 2016                                 7.011    6.047
     C 534 1987                                 12.119   11.155


                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of  6

                                                                                
Station ID: 9440357                         PUBLICATION DATE:  03/01/2017
Name:       TEMCO KALAMA TERMINAL, COLUMBIA RIVER             
            WA
NOAA Chart: 18524                           Latitude:   45° 59.2' N (  45.98667)
USGS Quad:  DEER ISLAND                     Longitude: 122° 50.2' W (-122.83667)


                             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.