Datums for 8540433, Marcus Hook PA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 8540433, Marcus Hook, PA
Status: Accepted (May 7 2020)
Units: Feet
Control Station: 8551910 Reedy Point, DE
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW6.17Mean Higher-High Water
MHW5.79Mean High Water
MTL2.99Mean Tide Level
MSL3.14Mean Sea Level
DTL3.08Mean Diurnal Tide Level
MLW0.18Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD882.98North American Vertical Datum of 1988
STND-21.65Station Datum
GT6.17Great Diurnal Range
MN5.62Mean Range of Tide
DHQ0.37Mean Diurnal High Water Inequality
DLQ0.18Mean Diurnal Low Water Inequality
HWI4.85Greenwich High Water Interval (in hours)
LWI12.13Greenwich Low Water Interval (in hours)
Max Tide10.10Highest Observed Tide
Max Tide Date & Time10/30/2012 06:48Highest Observed Tide Date & Time
Min Tide-3.57Lowest Observed Tide
Min Tide Date & Time03/06/2007 14:18Lowest Observed Tide Date & Time
HAT7.65Highest Astronomical Tide
HAT Date & Time05/26/1994 05:24HAT Date and Time
LAT-0.96Lowest Astronomical Tide
LAT Date & Time01/23/1996 01:42LAT Date and Time
Tidal Datum Analysis Periods
08/01/2002 - 07/31/2014
03/01/2017 - 02/28/2018




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