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

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File Number:. 55999 Page 12 of 26 Pages SCHEDULE D · ' Special Conditions I. Prior to increasing thermal load beyond the current pei'mit limitations, the Permittee shall notify the Deparmaent and apply for and be issued a permit modification allowing the inereas6. 2. Effluent temperature shall be managed in accordance with the Temperature Management Plan frMP)' (submitted October 2001) approved by the Department by this permitting action· Implementation of~hort and long term activities initiated in the'approved Temperature Management Plan shall not necessarily ' constitute a permit modification'. 3. All biosolicls shall'be managed in.accordance with the current, DEQ approved biosolids management · plan, and the site. authorization letters issued by the 'DEQ:.'Any changes, insolids management activities that significantly differ from operations specified' under the approved plan require'the.p.rior written approval'of the DEQ. ... All new biosolids application'sites shall meet the site selection criteria set forth in OAK 340-50- 0070. All .currently approved sites are located' in Oregon. No new public notice is'required for the continued use of these currently approved sites. Property.owners adjacent to any newly approved application sites shall be notified, in writing or by any method approved byDEQ, of the proposed activity prior to the start of application. For.proi~osed new. application sites .that are deemed by .. the DE.Q to be sensitive with respect to residential housing, runoff:potential'or threat to groundwater, an opportunity for public comment shall be.provided in accordance With OAK 340- 50-0030. ' ' 4.. This permit may. be modified to incorporate any applicable standard for biosolids use or disposal promulgated under section 405(d) oftbe Clean Water Act, i~the standard for biosolids USe or disposal is mgre'stringent than-any requiremen~ for biosolids use or disposal in the permit, or ~ontrols a pollutant or practice not limited in this permit. .. 5. Whole Effluent Toxicity Testing a. The permitte~ shall conduct whole effluent toxicity te~ts as specifi~l in Schedule B ofthi~ permit. b. Bioassay tests may be dual end-point tests, in which both acute and chronic end-points can be. determined from the results cfa single.chronic test (the acute end-point shall be based upon a 48- hour time period). · c. Acute Toxici.ty Testing - Organisms and Protocols (1) The permittee shall conduct 48-hour static renewal tests with.the Ceriodaphnia dubia (water flea) and the Pitne£halesprornelc~ (fathead minnow). (2) The presence, of acute toxicity will be determined as specified in Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms, Fo .u~th Edition, EPA/600/4-90/O27F, August 1993. (3) An acute bioassay t6st shall be considered to show toxicity if there is a statistically significant difference in survival between the control and 100 percent effluent, unless the permit specifically provides.for a Zone of Immediate Dilution (ZID) for biotoxicity. If the permit specifies such a ZID, acute toxicity shall.be indicated.when a statistically significant difference in survival occurs at dilutions greater than that Which is found to occur at the edge of the ZID. d. Chronic Toxicity Testing - Organisms and Protocols (1) The permittee shall conduct tests with: Ceriodaphnia dubia (water flea) for reproduction and survival test endpoint, Pimeph.alespromelas (fathead minnow) for growth and 4-36