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File Number: 55999 <br /> Page 3 of 26 Pages' <br />SCl:mD~ A ' <br />1. Waste Discharge Limitations not to be exceeded after permit issuance. <br /> a. Treated Effluent Outfall O01and O01A* CNastewater Treatment Piant Discharge) ;....' <br /> <br /> (1) ,,M..,a) 1 - October 31: <br /> CBOD~ 10 mg/L 15 mg/L 4100 6100 8200 <br /> (See Note 1) <br /> TSS ' 10 m~ffL 15 mg/L 4100 6100 8200 <br /> <br /> (2) No,~,nber 1 - April.30: <br /> Average Effluent "Mofithly** 'Weekly**'!:.':.' Dailf' .. <br /> .... ..... ;.. COncentrations : Averagef.~' .~.'.A. ve.rage,.~ :.:Maximum;:' <br /> <br /> CBODs 25 mg/L 40 mg/L .16,000 24,000 32,000 <br /> (See Note 1) <br /> TSS 30 mg/L 45 mg/L 19~000 28,000 38~000 <br /> <br /> · * Nc~ discharge from Outfal100lA from May 22 through October 31 unless approved by the <br /> Department. <br /> ** Average dry weather des_isn flow. to .the fac ity e. qu.,a s 49 MGD. Summer load <br /> limits based upon average dry weather aesign now to me facility. Winter mass'load li_$nits. <br /> based Upon average wet weather design flowto the facility equaling 75 MGD. The daily <br /> mass load limit is suspended On any. day in whichthe flowto the treatment.facility exceeds <br /> 98 MGD (twice the d. esign .average dry weather flow). <br /> E. ¢oli Bacteria Shall not exceed 126 organisms per <br /> 100 ml monthly geomelric mean. No <br /> single sample shall exceed 406 <br /> ' 100 mi. <br /> the range <br /> PH 3) <br /> TSS not be less than 85% monthly <br /> average for CBODs and 85% monthly <br /> for TSS. <br /> act exceed a monthly average <br /> concentration of 0.05 mg/l or a daily <br /> average concentration of 0.12 mg/l <br /> Thermal Loading: ;' weekly~ <br /> May 1 - October 31 '(Summer) 3.1 Billion BTUs per day ( See Note <br /> Ammonia: not exc~ <br /> May 1 - October 31 (Summer) maximum and 12 mg/l monthly <br /> average. <br /> (4) The allowable mixing zone is that portion of the Willamette Privet from 20 feet upstream of <br /> the diffuser to 200 feet downstream bfthe diffuser. In addition, the Zone of Immediate <br /> Dilution (ZID) shall include that portion of the Willamette river within 50 fee~ downstream 4-27 <br /> of the diffuser. <br /> <br /> <br />