ANSI INCITS 145-1986 (R2002)(formerly ANSI X3.145-1986 (R1997)for Information Systems -Codes - Identification ofHydrologic unitsCopyright 1986 by Information Technology Industry Council (ITI). All rights reserved.No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of ITI, 1250 Eye Street NW,Washington, DC 20005.
