Item A - PH on MWMC/Metro Plan - Laserfiche WebLink

Home Browse Search

File Number: 55999 Page 15 of 26 Pages conditions for a lesser percentage removal exiSt or w~ll exist in the design lire'of the treatment facility. If'the permittee wishes to make this demonstration, the p.ermittee must conduct engineering studies to demonstrate that flows to the.treatment facility are not the result of excessive infiltration and inflow, and conduct an engineering evaluation of the attainable percentage removal for BOD and TSS at the peak month design flow (using two-year high month precipitation amount) and the highest monthly flow at which 85% removal can be achieved, and include the following information and evaluations: ' a. The entire system muSt be flow mapped, by subbasin, and all .sewer syStem overflow points identified· · b. Unless othenvise approved in wri~ang by the'Depa~anent, alt inflow sources mns~'be identified. c. The treatment facility shall be.evaluated to determine the maXimum monthly flow at which 85 % removal of BOD and TSS can be achieved. In addition, the permit~ee shall evaluatelwhat · percentage reduction of BOD and TSS is achievable at peak design monthly flows consistent with a two-year high month precipitation event. For both of these evaluations, projected flows after inflow removal a~ required in Condition 9, of this schedule are. to be used.' · 9. The Department hereby approves the MWlVlC Wet Weather Flow Management_P. lan dated ,Au.guSt 27, 2001. -.' The permittee shall implement the Plan as approved· Unless otherwise approved in writing Dy me Department, all inflow sources identified during implementation of the Plan are to be permanently .- disconnected from the sanitary sewer syStem.. 10. The permittee shall meet the requirements for use of' reclaimed water under Division 55, including the following: a. All reclaimed water shall be managed in accordance with the approved Reclaimed Water Use Plan. No substantial changes .shall be made in the. approved plan withotit written approval of the Department.. q ' b. No reclaimed water shall be released by the permittee to another person, as defined in Oregon Revised Statute (ORS) 468.005, for use unless there is a valid contract between the pemu'ttee and that Person that meets the requirements of OAR 340-55-015(9). c. The permittee shill ~otify the Department within 24 hours if it !s determined that the treated effluent is being'used in a manner not in compliance with OAK 340-55. When the Depament offices are .not open, the permittee shall report the incident of noncompliance ta the Oregon Emergency .. Response System (Telephone N.um~r 1-800-452-0311). d. No reclaimed Wate~ shall be made available to a person proposing to recycle unless that person certification sh~ll be kept on file by the sewage treatment system owner ana t~e mac~e avaname To me Department for inspection. 11. The permittee shail notify the DEQ'Western R~gio~ ~- ~alem Office (phone: (503) 378-82~0) in accordance with the response times noted in the General Conditions of this permit, of any malfunction so that corrective action can be coordinated between the perrnittee and the Department. 4-39