757 



requirements!, and such other factors as the Ad- 

 ministrator deems appropriate; 



(2)(Ai identify, in terms of amounts of con- 

 stituents and chemical, physical, and biological 

 characteristics of pollutants, the degree of effluent 

 reduction attainable through the application of 

 the best control measures and practices achievable 

 including treatment techniques, process and pro- 

 cedure innovations, operating methods, and other 

 alternatives for classes and categories of point 

 sources i other than publicly owned treatment 

 works) : and 



.Bi specify factors to be taken into account in 

 determining the best measures and practices avail- 

 able to comply with subsection ib>i2i of section 

 1311 of this title to be applicable to any point 

 source i other than publicly owned treatment 

 works > within such categories or classes. Factors 

 relating to the assessment of best available tech- 

 nology shall take into account the age of equip- 

 ment and facilities involved, the process employed, 

 the engineering aspects of the application of 

 various types of control techniques, process 

 changes, the cost of achieving such effluent reduc- 

 tion, non-water quality environmental impact (in- 

 cluding energy requirements! , and such other fac- 

 tors as the Administrator deems appropriate; and 



(3* identify control measures and practices 

 available to eliminate the discharge of pollutants 

 from categories and classes of point sources, tak- 

 ing into account the cost of achieving such elimi- 

 nation of the discharge of pollutants. 



(c) Pollution discharge olimlnadon procedures. 



The Administrator, after consultation, with ap- 

 propriate Federal and State agencies and other in- 

 terested persons, shall issue to the States and ap- 

 propriate water pollution control agencies within 270 

 days after October 18, 1972 land from time to time 

 thereafter) information on the processes, procedures. 

 or operating methods which result in the elimination 

 or reduction of the discharge of pollutants to imple- 

 ment standards of performance under section 1316 

 of this title. Such information shall include techni- 

 cal and other data, including costs, as are available 

 on alternative methods of elimination or reduction 

 of the discharge of pollutants. Such information, 

 and revisions thereof, shall be published in the Fed- 

 eral Register and otherwise shall be made available 

 to the public. 



(d) Secondary treatment information; alternative 

 waste treatment management techniques and sys- 

 tems. 



(1) The Administrator, after consultation with 

 appropriate Federal and State agencies and other 

 interested persons, shall publish within sixty days 

 after October 18. 1972 land from time to time there- 

 after) information, in terms of amounts of con- 

 stituents and chemical, physical, and biological 

 characteristics of pollutants, on the degree of effluent 

 reduction attainable through the application of sec- 

 ondary treatment. 



(2) The Administrator, after consultation with ap- 

 propriate Federal and State agencies and other in- 

 terested persons, shall publish within nine months 

 after October 18, 1972 land from time to time there- 



after) information on alternative waste treatment 

 management techniques and systems available to 

 implement section 1281 of this title, 



(e) Identification and evaluation of nonpoint sources 

 of pollution; processes, procedures, and methods 

 to control pollution. 



The Administrator, after consultation with appro- 

 priate Federal and State agencies and other in- 

 terested persons, shall issue to appropriate Federal 

 agencies, the States, water pollution control agencies, 

 and agencies designated under section 1288 of this 

 title, within one year after October 18, 1972 (and 

 from time to time thereafter) information including 

 (1) guidelines for identifying and evaluating the 

 nature and extent of nonpoint sources of pollutants, 

 and (2) processes, procedures, and methods to con- 

 trol pollution resulting from — 



(A) agricultural and silvicultural activities, in- 

 cluding runoff from fields and crop and forest 

 lands; 



(B) mining activities, including runoff and silta- 

 tion from new. currently operating, and abandoned 

 surface and underground mines; 



(C) all construction activity, including runoff 

 from the facilities resulting from such construc- 

 tion; 



I D ) the disposal of pollutants in wells or in sub- 

 surface excavations; 



(E! salt water intrusion resulting from reduc- 

 tions of fresh water flow from any cause, including 

 extraction of ground water, irrigation, obstruction, 

 and diversion ; and 



(P) changes in the movement. f5ow. or circula- 

 tion of any navigable waters or ground waters, in- 

 cluding changes caused by the construction of 

 dams, levees, channels, causeways, or flow diver- 

 sion facilities. 

 Such information and revisions thereof shall be pub- 

 lished in the Federal Register and otherwise made 

 available to the public. 



(f) Guidelines for pretreatment of pollutants. 



( 1 ) For the purpose of assisting States in carrying 

 out programs under section 1342 of this title, the 

 Administrator shall publish, within one hundred 

 and twenty days after October 18. 1972. and review 

 at least annually thereafter and. if appropriate, re- 

 vise guidelines for pretreatment of pollutants which 

 he determines are not susceptible to treatment by 

 publicly owned treatment works. Guidelines under 

 this subsection shall be established to control and 

 prevent the discharge into the navigable waters, the 

 contiguous zone, or the ocean (either directly or 

 through publicly owned treatment works) of any 

 pollutant w^hich interferes with, passes through, or 

 otherwise is incompatible with such works. 



(2) When publishing guidelines under this subsec- 

 tion, the Administrator shall designate the category 

 or categories of treatment works to which the guide- 

 lines shall apply. 



(g) Test procedures g:uidelines. 



The Administrator shall, within one hundred and 

 eighty days from October 18. 1972. promulgate guide- 

 lines establishing test procedures for the analysis of 



