Description
Item Description:"Prepared in cooperation with Metropolitan Water Reclamation District of Greater Chicago."
"Groundwater and Streamflow Information Program."
GPO Cataloging Record Distribution Program (CRDP).
Physical Description:1 online resource (vii, 15 pages) : color illustrations, color map.
Bibliography:Includes bibliographical references (pages 14-15).
ISSN:2328-0328 ;