Community Assessment Report - Onsite Sewage Treatment ...

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o All properties install compliant ISTS and explore private funding options for anyfuture upgrades.o Include all systems in a future management plan.• If the Community desires to own and manage all wastewater systems to ensureenvironmental stewardship, or if the Community desires to free up space on individuallots potentially occupied by ISTS, with consideration to cost of the overall systemapplying secondarily, then the following recommendation applies:o Further evaluate Alternatives 2 and 3, cluster treatment system options. Evaluatepotential to attain public financing to fund these options.o If Alternative 2 (Cluster LISTS serving six properties with eight properties onISTS) is desired, then:o Determine final properties for inclusion in cluster mound LISTS onexisting wastewater treatment site (can accommodate maximum flowof ~3,000 gallons per day (approximately six three-bedroom homes))o Remaining eight properties install ISTS on their own lotso If Alternative 3 (Cluster MSTS serving all properties) is desired, then:o Evaluate potential for purchasing additional lando Complete a hydrogeologic investigation to determine if nitrogenremoval technology will be required and if groundwater moundingwill affect design of a proposed MSTS.5.3 NEXT STEPSThe following describes future actions that could be taken by the Community of Rolling Shoresbased on the CAR recommendations.• Explore public financing grant options to reduce debt service for upgrades.• Explore possibility of land acquisition for cluster MSTS system (Alternative 3).• Further explore the suitability of the proposed cluster site(s) for wastewater treatment viaa Hydrogeological Assessment using soil pits, and (where applicable) borings togroundwater, and groundwater mounding assessments.T:\2797-01 Chisago County\CAR\ROLLINGS SHORES CAR 090712.docx5-2
• Chisago County would continue to enforce the ISTS regulations of Chapter 7080. Allproperties will require an upgrade to some form of compliant SSTS in the near future.T:\2797-01 Chisago County\CAR\ROLLINGS SHORES CAR 090712.docx5-3
Page 1: Rolling ShoresCommunityAssessment R
Page 4 and 5: 1.0 Introduction1.1 BACKGROUNDThe C
Page 7 and 8: 1.3 REPORT PURPOSEThis report is a
Page 9 and 10: 2.0 Existing Conditions2.1 INTRODUC
Page 11 and 12: 2.3 FINDINGSThe purpose of the site
Page 13 and 14: Photo 1: Wastewater effluent surfac
Page 15 and 16: 3.0 Alternatives Analysis3.1 INTROD
Page 17 and 18: 3.2.2 Private ISTS ProgramIn a priv
Page 19 and 20: ISTS rules dictate that systems tha
Page 21 and 22: with CAR ID#13 is allowed to build
Page 23 and 24: Table 4: Estimated Permitting Flow
Page 25 and 26: etained at all individual propertie
Page 27 and 28: • Lower operation and maintenance
Page 29 and 30: 4.0 Cost Comparison of Alternatives
Page 31 and 32: The replacement wastewater system A
Page 33 and 34: asis, other considerations such as
Page 35 and 36: analysis over a 25-year period show
Page 37: 5.0 Summary and Recommendations5.1
Page 41 and 42: Project LocationRush Lake 7.5 Minut
Page 43 and 44: 920940920920920920940930920920920!A
Page 45: 13Note: CAR ID#13 will be a holding
Page 48 and 49: Appendix ABackground Information
Page 50 and 51: pores and channels. As a result the
Page 52 and 53: The trench is the most common of th
Page 54 and 55: DRAFT - 5/30/12Septic System Improv
Page 56 and 57: CAR ID#Property Information Drainfi
Page 58 and 59: 03.01358.15!>SB 1948.71503.01358.16
Page 60 and 61: !(03.01358.13!(!A!>SB 1939.30703.01
Page 62 and 63: !>!A03.01358.11!. !.03.01358.12!>SB
Page 64 and 65: 03.00047.1003.00047.00!(SUMP OUT925
Page 66 and 67: 03.01358.06!ACambridge Dr!>SB 1939.
Page 68 and 69: !A03.01358.04Cambridge Dr!A03.01358
Page 70 and 71: !(!>SB 1939.98903.01358.02!ASB 1940
Page 72 and 73: !>03.01358.18470th St!>SB 4935.649S
Page 75 and 76: Appendix DSoil Borings
Page 77 and 78: Date Completed:Completed By:Project
Page 89 and 90:
Date Completed:Completed By:Project
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Appendix EFlow Calculations
Page 101 and 102:
LISTS Final Permitting FlowWorkshee
Page 103 and 104:
MSTS Final Permitting FlowWorksheet
Page 105 and 106:
ESTIMATED LISTS CLUSTER CAPITAL COS
Page 107 and 108:
ESTIMATED CLUSTER MSTS CAPITAL COST
Page 109 and 110:
OPERATION AND MAINTENANCE FOR CLUST
Page 111 and 112:
Appendix GChisago County Letters
Page 113 and 114:
Compliance Inspection FormExisting
Page 115 and 116:
Property address: Cambridge Dr, Har
Page 117 and 118:
Easement and property research find
Page 119:
#210968• Signed June 27, 1988•
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