Development document for effluent limitations guidelines and new source performance standards :  for the phosphorus derived chemicals segment of the phosphate manufacturing point source category 
 Phosphorus derived chemicals. 

 - Washington, D.C. :  U.S. Environmental Portection Agency,  1974 
 - vii, 154 pages :  diagrams ;  27 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phosphorus industry--Waste disposal--Standards--United States.<br/>Phosphates--Waste disposal--Standards--United States.<br/>Water--Pollution--United States.<br/>Effluent quality--Standards--United States.
<br/><br/><label>Dewey Class. No.: </label>631.850973