53 resultados para Survey Programs.
Resumo:
"December 1994."
Resumo:
"April 1998."
Resumo:
"The Illinois Environmental Protection Agency monitors surface waters (i.e. lakes and streams) through a variety of programs. The most extensive is the Ambient Water Quality Monitoring Network (AWQMN) which consists of 203 stream stations statewide sampled on a 6 week cycle since October 1977." -- p. 1.
Resumo:
Mode of access: Internet.
Resumo:
"Survey report"--Cover.
Resumo:
Bibliography: p. 42.
Resumo:
Mode of access: Internet.
Resumo:
Mode of access: Internet.