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WET WEATHER FLOW MANAGEMENT PLAN <br /> <br /> TABLE 3-2 <br /> Pros and Cons of the Alternatives <br /> <br /> Alternative 3olutlon <br /> Elements Pros . Cons 3-2 3-4 3.5 S-6 <br /> · Enforcement (policy developed to address <br /> noncompliance.by property owner) <br /> · . . ~ . · Payment (identification of payment) <br /> Conveyance -------_ <br /> <br /> Pipelines Meets 5-year crlterla for overflows · Discharges to Willamette tributaries · · · <br /> beyond 5 year <br /> <br /> Slgnlficant construction In park area <br /> adjacent to the West Bank Interceptor <br /> (S,4 only) <br /> Pump Stations <br /> <br />3torage Facilities Constructed storage produces known performance · No storage locations to enhance surface "'"--'-'- <br /> (S-4 and S-$) · · <br /> · features (S-2 and S-6) <br /> Storage facllitles provide opportunity to enhance · Storage requires maintenance not <br /> surface features (S-4 and. S-5) currently performed In system (S-4 and <br /> S-S) <br />Treatment Effiuer~t well'wlthln quality permit requirements --'-'---- <br /> <br /> Secondary treatment to 130 mgd, select treat for <br /> ramainder <br /> <br /> Beyond 5 year likely to be hlgh fiver flow conditions <br /> and minlmum recelvlng water, human contact, or <br /> aesthetic Impact <br /> <br />USRIOO3672330. DOC · <br /> <br /> <br />