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Home My WebLink About09-17-1979 Public Information Meeting Minutes Sewers , � CIT�' OF ORONO Public Information P4eeting, Pro��sec� Se�•�ers, 7 : 30 P.Pi. Septer.lber 17, 1979 The Orono Council met on the above date with the following members present: Piayor Van PJest, Council- r.1er.�bers Butler, Iiurr, and P.aurus. Councilr.lember P4assengale absent. Also present: Cit�� Planner Olson, City rngineer Cook, Public [��Torks Coordinator Gerhardson, and Septic Inspector �af_fron. tZayor Van tdest introduced the Councilmer►bers to MItdNETO"dKA BLitFFS, . the public present and stated that this meeting rT'T:?�ID.7�TF �2D. T•7.y0i3�N6 LA. is an old fashioned town rteetinq to talk about PROPO�ED SEWERS rnutual problems and to learn the situation and get facts and alternatives frorl staff to resolve sewer problerls in the community. The t4ayor explained the purpose of the Metropolitan Council, which is composed of four s��steMs that they are responsible for: r4etropolitan �irports, i�setropolitan Parks System, Pietropolitan "'ransit, and i4etropolitan Sewer S_ystems. The Piayor stated that the interceptor now being installed is to eliminate the Orono and Lonc� Lake sewac�e pJ_ants allowing the effluent to flow directiv to Blue Lake Plant on the Piinnesota River and is heing paid for with tax dollars, f�e next explained the Psetropolitan Urban �ervice Area, (MUSA Line) . . t4ayor Van idest introduced t4ike Gaf_.fron, Orono' s Se�tic Inspector, stating that he is resPonsible for overseeing on-site septic systems in the rural service area. Mr. i'Iike �affron presented a sumr_Zary concerning existing conditions and explained theri in r.lore detail. He exPlained which areas are nrobler_i areas stating that the properties were nlatted , _years ago into small lots which also includec� �aetlands, which also affects septic systems. Mr. Gaffron explained the functioning of a septic system and why septic systeris do not function properly stating that types of soil also determines the adequacy of the present syster,ls. Sumr.lary - Minnetonka Bluffs and Shoreline/-Fernclale nd, ��TPst/Orono �ane Sewage Treatment Fvaluation and Alternatives - Pages 2 & 3 Paqe 2 SUMMARY MINNETONKA BLUFFS AND SHORELINE/WEST FERNDALE/ORONO LANE SEWAGE TREATMENT EVALUATION AND ALTERNATIVES EXISTING CONDITIONS Untreated septic tank effluent is presently flowing on the g�ound surface at 9 of 22 existing residences in the Minnetonka Bluffs Area. In addition, various other residences have drainfields in wetlands or marshy soils or have wells near �heir own or a neighbor ' s drainfield. In the lakeshore area, many existing drainfields are in or near the water table and have a high potential for causing lake pollution. VARIOUS ALTERNATIVES FOR DISPOSAL AND TREATMENT ALTERNATIVE PROS • CONS Repair Existing Where feasible is the least Small lots restrict area System by adding expensive alternative to useful for drainfield due drainfield and/or provide effective treatment to setback requirements repair tanks. and disposal on a long term Topography (slopes) , lakes basis . wetlands, high seasonal water tables andimpermeabl clay soils further limit standard drainfield use. Typical cost for a 3-br. " home - $1, 800 - $2 , 200. Alternative Mound Effectively useful drain- Requires flat area of abou System - built field for certain high 40 ' X 60 ' for a 3-br. ' above ground. water table/clay soil home. Still restricted conditions on a long by very high water tables . term basis. and very unsuitable clay soils. Requires pump in the septic tank. Typical cost. - $4 , 000 - $5, 000 . Greywater System Reduces water use by Still must treat and dis- relies on use of 30$ - 50$, therefore pose of laundry, �bathtub non-water using less water to treat and � or shower, and kitchen toilets , i. e. dispose of - could have wastes. State Plumbing incinerator toilets, smaller drainfields than Code requires water�-flush composting toilets, norr,►al. toilets for residential _recirculating fluid use. Public acceptance or marine holding of alternative toilets is tank toilets. a concern. Cost approxi- mately equal to standard � drainfield system since cost of alternative toilet is offset by smaller drainfield requirements. . Page 3 VARIOUS ALTERNATIVES FOR DISPOSAL AND TREATMENT (CONT. ) ALTERNATIVE PROS CONS Package Plant - Supposedly produces potable Costs for individual Self-Contained Unit. water. Does not require residentia� installation drainfield. may be upwards of $10, 000 Maintenance costs are high, space in basement needed. Holding Tank, No drainfield needed. No Cost of pumpouts is about Off-Site Treatment pollution hazard. $55/2, 000 gallons. For and Disposal. a family of 4 , pumpout � costs could be as much as $1, 500 - $2, 000 per year or more. Requires carefu monitoring by owner. Collector System, City owns and maintains Based on Hennepin County Community Drain- total system. Reduced Soils Maps, there is no field, probably homeowner responsibility. suitable land for a _ community septic community drainfield in tank. the vicinity. Would require a lift station. Some pollution hazard if - it fails. - Reliability is questionable. Collector System, City owns and maintains High first cost, would Package Treatment total system. Reduced likely require a building Plant. homeowner responsibility. and possibly a lift stati Collector System, City owns and maintains Would require a lift or tied into collection lines and injector station. Interceptor Sewer. lift station. No treatment plant to mai�tain. _ , PUIILIC ITdI'ORMATION PZEETIidG, SEPTEPiB�R 17 , 1979 Page 4 tir. �lenn Cook, City Engineer, explained possib�e SEl�1EP. LINE ROUTE routes of the se�-�er line to connect to the inter- ce�tor for the Minnetonka Bluffs area. Z� would go down Orono Orchard Road, then down I�anlon Avenue, then down to the tracks, then west to the lift station at County Road 15 and Orono Orchard Road where it would connect to the system; d��an Russell Avenue to �15 (difficult area) along Dickenson Street to Barrett Avenue or down alley between Dickenson Street and Barrett Avenue, #15 to Orono Lane on Orono Lane on the lakesic�e to Terndale R�a�3. F�'est. 2ir. Cook stated that this is the most economical route to serve most of the properties with one collection point at �#15 and Orono Orchard Road. It would serve 50 homes at approximately 57500 per unit, plus or riinus 20g. Assessments were discussed. Psayor Van Ilest: The Cit_y has to make a deterr.tination if a health probleri exists then the Cit_y must make a decision. The nroblems are the residents of the area and the City is trying to help solve the problem. The tsayor asked how many people felt that a sewer system is the most desirable ans�ver to solvinc� the problem. Majority answered "Yes" . P4ayor Van Nest: Do you want the Citv to nrenare a feasibility stud_y? Majority answered "Yes" . �'wo persons �ut of the group were against a City - sewer system. The concensus was that rlost people wanted a feasibility study. P4ayor Van Nest recommended a feasibilitv report ior the next Council r►eeting. List of persons present - Pages �5 & 6 P4eeting adj ourned at 9: 2 0 P.P4. ADJOURN:�ENT illiari . an idest, Mayor 9 / '-'J Attest: �-�� alter R, enson, City Administrator . 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