An economic analysis of effluent standards for BOD, ammonia, total suspended solids, and disinfection : case study of a modern treatment plant /

"Project no. 80.160."

An Economic impact study of petition for regulatory relief from phosphorus effluent limits, city of Pana : R84-44 : final report /

"Printed: April 1988."

Economic impact of a proposed change in the ammonia effluent standards, R77-6 /

"Project no. 80.094."

Economic impact of proposed water quality and effluent standard amendments for water in the Sangamon River Basin /

"November 1986."

Evaluation of effluent regulations of the State of Illinois : report to the State of Illinois Institute for Environmental Quality /

Project no. 20.070B

Technology assessment of wastewater treatment alternatives for compliance with deoxygenating wastes effluent standards : final report /

"Project 87/7012."

The economic impact of total dissolved solids effluent standards in Illinois /

Project no. 20.073.

A few practical remarks on the improvement of grass land, by means of irrigation, winter-flooding, and drainage, in a letter to the owners and occupiers of land, in the county of Essex.

Mode of access: Internet.

Irrigation practice and engineering.

Contains bibliographies.

Irrigation & drainage : a national research plan to meet competing demands and protect the environment.

Shipping list no.: 2002-0055-P.

Determining consumptive use and irrigation water requirements /

Caption title.

Tolerance of certain crops to several aquatic herbicides in irrigation water /

Caption title.

Summary of irrigation-district statutes of western states /

"January, 1931."

Response of several crops to six herbicides in irrigation water /

Cover title.

The Salt problem in irrigation agriculture : research at the United States Regional Salinity Laboratory.

Cover title.