=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-JUL-93 :
Many stations on the Gulf coast have large values for September 1961.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Clearwater Beach    940/060 RLR(1985) is 8.3m below BM LP 10 RM1
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 21-Dec-2011 :
Using NOAA data the RLR diagram has been reviewed. Primary benchmark remains LP 10 RM 1 2.234m above gauge datum (TGZ)

