Revised Local Reference (RLR) Diagram for HARLINGEN

Station ID: 25

RLR diagram based on the information in the datum section below

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Datum information

Add 6.907m to data values 1865-2004 to refer to RLR
Add 6.914m to data values 2005 onwards to refer to RLR
RLR is 13.900m below primary benchmark TGBM