Performing organization: Illinois Environmental Protection Agency, Bureau of Water, Division of Water Pollution Control."State of Illinois Environmental Protection Agency, Bureau of Water, Planning Section.""IEPA/BOW/98-001"--Cover."March 1998."Includes bibliographical references (p. 74-76).Mode of access: Internet
"IEPA/WPC/93-063."--Cover."June 1993."Includes bibliographical references (p. 30-31)Mode of access: ...
"National Water-Quality Assessment Program."Includes bibliographical references (p. 67-69).Mode of a...
"Prepared for the Illinois Institute of Natural Resources and the Illinois Environmental Protection ...
"The 1993 Intensive Survey of the Saline River Basin was developed in conjunction with the Illinois ...
"March 1988."--Cover."IEPA/WPC/88-019."--Cover."July 1987."Survey designed, conducted and written by...
"IEPA/WPC/88-030."--Cover."June 1988.""July 1988."--Cover.Survey designed, conducted and written by ...
At head of cover title: Illinois Environmental Protection Agency, Bureau of Land."August 1997.""Jan-...
"Publication of the state Water survey": p. 35.At head of title: State of Illinois. Len Small, gover...
Survey made cooperatively by the Illinois Environmental Protection Agency and the Illinois Dept. of ...
"February 1988"--Cover."IEPA/WPC/88-014"--Cover.Includes bibliographical references (p. 66-67)Mode o...
"Prepared for the Illinois Environmental Protection Agency."Chiefly tables.Bibliography: leaves 51-5...
"Prepared for the Illinois Environmental Protection Agency."Bibliography: leaves 32-33.Mode of acces...
Description based on: July 1, 1993-June 30, 1994.Mode of access: Internet."From 1981 until June 30, ...
"IEPA/WPC/89-163."--Cover."USEPA reach number 07060005-004.""June 1989."--Cover.Includes bibliograph...
Cover title: Surface drainage program, background survey."April 1973."Includes bibliographical refer...
"IEPA/WPC/93-063."--Cover."June 1993."Includes bibliographical references (p. 30-31)Mode of access: ...
"National Water-Quality Assessment Program."Includes bibliographical references (p. 67-69).Mode of a...
"Prepared for the Illinois Institute of Natural Resources and the Illinois Environmental Protection ...
"The 1993 Intensive Survey of the Saline River Basin was developed in conjunction with the Illinois ...
"March 1988."--Cover."IEPA/WPC/88-019."--Cover."July 1987."Survey designed, conducted and written by...
"IEPA/WPC/88-030."--Cover."June 1988.""July 1988."--Cover.Survey designed, conducted and written by ...
At head of cover title: Illinois Environmental Protection Agency, Bureau of Land."August 1997.""Jan-...
"Publication of the state Water survey": p. 35.At head of title: State of Illinois. Len Small, gover...
Survey made cooperatively by the Illinois Environmental Protection Agency and the Illinois Dept. of ...
"February 1988"--Cover."IEPA/WPC/88-014"--Cover.Includes bibliographical references (p. 66-67)Mode o...
"Prepared for the Illinois Environmental Protection Agency."Chiefly tables.Bibliography: leaves 51-5...
"Prepared for the Illinois Environmental Protection Agency."Bibliography: leaves 32-33.Mode of acces...
Description based on: July 1, 1993-June 30, 1994.Mode of access: Internet."From 1981 until June 30, ...
"IEPA/WPC/89-163."--Cover."USEPA reach number 07060005-004.""June 1989."--Cover.Includes bibliograph...
Cover title: Surface drainage program, background survey."April 1973."Includes bibliographical refer...
"IEPA/WPC/93-063."--Cover."June 1993."Includes bibliographical references (p. 30-31)Mode of access: ...
"National Water-Quality Assessment Program."Includes bibliographical references (p. 67-69).Mode of a...
"Prepared for the Illinois Institute of Natural Resources and the Illinois Environmental Protection ...