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Home My WebLink About1995-06-12 95-279 ORDERCouncil Act on Date June 6. 1995 Item No95-279 1 Icem/Subje= Acceptance of the PY96 Combined Sever overflow Capital Projects Plan Responsible Department: Engineering Commentary: As you are aware, the City is obligated under the Consent Decree with EPA ad DEP to annually undertake combined sewer overflow projects as outlined in the °Combined Sewer Overflow Facilities Play" implemevtazion schodule. Attached is a briefoudine of the FY96 CSO pregmen for new projects together with a copy of the Consent Decree Compliance Schedule Also to be undertaken during FY% are two carryover projectspreviously approved last year: Upgrade of the Treatment Plant to provide additional Capacity to treat storm water, mW Phase B of the Davis Brook Connecting Pipe Project. With ravcvrtevce with the regulatory ageneses, these projects were postponed to allow sufficient time to fully assess plant performance and to integrate with design of the Davis Brook Storage Facility, respectively. Ibis Council Order formally adopts the M6 plan. As has been time in the past a Companion Order will be submitted authorizing borrowing from the Some Revolving Loan Food he cover firuncing of me promise, - IlapvRmene Hud Manager's Comments: U Y City Manvgn Associated Information: Q AAU _ Budget Approval: /rA Fires ttOve Legal Approval: pQ_ _ / /// . — U (/CiryYSag4Ciry 5a4<iio/io/l• Introduced For _ �F11SL Reading Page_of ❑ Referral 95-279 Anipmd to Councilor Tyler Tune 12, 1995 CITY OF BANGOR (TITLE.) @rhrt ."OC.ePr nca of the, Py96 Combined Sawer(werflow capital Projects Plan. By the c y Counts! of W My ofj9tnoor: ORDERED, TWT the FY% Capital Projects Pian for the Combined Sewer Overflow Projttts totaling $2,427,000.00 in estimated costs is hereby accepted and adopted. IN CITY COUNCIL June -'q, 1995 95-279 P a O R D E R eCITY X Title, Acceptance of the PY96 Combined' Sever Overflow Capital Projects Plan 95-2J �9...: CARRY-OVER PROJECTS F"N") DavisBreak ConnabMI Pipe Phase I Railroad Street Sewer Replacement This project replaces a 2l"concrete sewer pipe with a 30' ductile iron sewer pipe Fl� 95 in the same location on Reduced Street. The intent of the project is to provide of increased capacity of flows b the naturalism sewer. The project consists of approximately 630 feet of30" ductile von sewer pipe, two new manhole structures, modification of two other structures, and associated groundwork, at a total most estimated at $173,000.00. Phase R Reduced Street Track Crossiog/Regulator Replacement This project continues the Railroad Street sewer project with a track crossing and a replacement ofthe sluice gateregulatoron Front Street Thispordonofthc projem was placed in a later phase than the above projem to allow time to deal with Railroad regulations and to appropriately design the new, regulator facility. The consists of epprodmetdy 60 feet of 48" steel casing Pipe jacked into project place under the tacks, approximately 200 feat of 30" ductile iron sewer pipe, two manhole structures, a gate structure at the interceptor, and related groundwork, m a total cost estimated at $378,000.00. Wounvatter Treatment Plant Expansion to 43 MGD The CSO Facilities Plm4 in concurrence with the Federal Cleea Water Am, Calls for mercerizing flow to the traatme d plat in order to abate combined sewer overflow discharges. Plat staff has baa conducting wet weather weNuimats to determine the most cost effective method of dealing with high flOWs during �o raiNdVsmowmelt events. Sewer capacity to the plat is estimated at 43 million fvN 1 gallons per day (MGM while the short term was weather capacity of the secondary treatment plant is 30 MGD. The curtem plan is to provide primary turnaround only kr the 13 MGD flow that exceeds the 30 MGD capacity of the secondary treatment process. This will be accomplisheri isolating one of the primary treatment tanks by appropriately designed gaze Am rmas. Related pumps, disinfection, and control systems are included. Estimated cost at this time is $244,800.00. acavow.00c 95-D9 NEW PROJECTS Union Street AMa SewLr Se Con Prefect The Union Street Area Sewer Separation Project will separate a large portion of the combined sewer system which presently contributes flow to both the Fourteenth Street and Cemetery Sewer sub -areas. The p riser wif eensims ofthe installation of new sanitary sewers and some drains in Union Street from Eddyway Street to Thomas Hill Road and Thirteenth Street from Union Street to Rutland Street. New sanitary sewers will also be installed in portions of Cottage, May, Jackson. Frances, and Russell Streets and all of Manners Avenue and Rutland Somas. The existing combined sewers serving Fourteenth and Eddyway Streets will be connected to the new system pending dome; separation projects. Pipe sties will range from S inch to 24 inch sanitary sewers and 10 inch to 30 inch storm drains. The total cost of the project is estimated to be $1,320,000.00, Fremont Stuart Sewer SEIMMOOR Pro ect This project, includes the conshuction of approximately 800 LF of new sanitary sewer, 385 LF ofanmtary sewer service connections, and 460U of new storm sewer and will separate storm and svtitety sewer flows in Fremont Street, Dayton Street and Tyler Avemses. In order for the seperete storm sewers to function property, portions of these sheets will be regraded. Because of the amount of trench work required, portions of these streets will be repaved for their full width. Cost is estimated at $245,000.00. Poplar Street Sewer SevamilOn This project is the fifth phase ofthe Arctic Brook sewer separation which has the ultimate goal of elimination of combined sewer overflows in the Arctic Brook drainage area. TMs project consists of approximately 234 feet of 18" storm drain between Poplar Sued and the recently completed project on Earle Avenue, and approximately 900 feet of 8" and 10" sanitary, sewer and 122 feet of storm sewer on Poplar Street. Cost is estimated at $240,500.00. Hammond StreConnecting Pive Reolncement This project will abate combined sewer over lows into the Kevduskeag Stream by replacing an existing 7A" sanitary sewer pipe with approximately 135 LF of 42" RCp and approximately 90 LF of existing 42" pipe with 53" X 83"vertical elliptical RCP. Work will include the construction of two new structures and extensive modification ofmo existing stmcmres. An existing 15" storm sewer will be diverted from the existing combined sewer to the Keaduskeag Stream Cos[ is estimated at $157,000.00. NEWP0.0ASA I 95-2]9 Barkenville Connectins Pipe The Barkersville CSO strocmre on lower Main Street behind Bangor Hydrds garage collects to the Penobscot Interceptor with a 24" pipe. This project upgrades the capacity of this line by replacing or supplementing the existing MA conneming pipe. By increasing the capacity, more wet weather flow will be treated, and less will be discharged as a combined sewer overflow. Preliminary design is expected to commence in the fall of 1995. Conceptual stage own is estimated at $250,000 00. - . Prelimisa rvDesism FY 1997 Sewer/Combined Sewer Overflow projects have not yet been established. The CSO Facilities Plan calls for sewer separation projects in the Meadowbrook, Arctic Brook, Fourteenth Street, and Cemetery drainage areas, all upgrading the £Cenduskeag Pump Station to 28 MGD. The$153,000.00 budgeted for preliminary Design allows the development of the concepts into designed projects that will comply with the requirements of the Consent Decree between the City and EPA. IufdfnfioMnflow Reduction - Small Projects This category of projects is to address small sections of sewer that are in need of repair/replacwent to deal with blockages, deterioration, excessive leakage, or insut£ciend capacity. At the current time, such work is anticipated in New Capeham. $61,500.00 has been budgeted for this work. nEW?RQnICC Project Description Completion Date . Generic Bypass Analysis Report June 30, 1995 Phase I Projects: Evaluate PAF Performance - June 30, 1995 PAF Expansion to 43 MGD June 30, 1996 Roof LeaderDisconnectionProgram June 30, 2000 - Implement Long Term Monitoring June 30, 2009 ongoing Separation Projects June 30, 1999 - Ongoing -I/I Projects June 30, 2006 Barkersville Connecting Pipe June 30, 1996' Davis Brook Connecting Pipe June 30, 1995 - Hammond. Street Connecting Pine June 30, 1996 KPS Expansion June 30, 1997 Kenduskeag West Interceptor (complete) June 30, 1994 May & Union Street Modifications June 30, 1995 Phase II projects: - Arctic Brook Sewer Separation June 30, 1997 CemeterySewerSeparation _ June 30, 2002 14th Street Sewer Separation, June 30, 1997 Report evaluating the effectiveness of the Phases I and. II projects, vortex separator pilot testing, and - any proposed revisions to Phases III and IV, includinq schedule changes June 30, 2003