Joint Village Board-Plan Commission-Public Works & Utility Agenda/ Packet

VILLAGE OF LISBON W234 N8676 Woodside Rd Lisbon, WI 53089-1545 Office: (262) 246-6100 | Email: villagehall@lisbonwi.gov | Website: www.lisbonwi.gov Join Zoom Online: https://us06web.zoom.us/j/87565604848?pwd=UndQT2taMndwY3pzblJsT0Z5ZnlKdz09 Zoom by Phone: Dial 1-312-626-6799 Meeting ID: 875 6560 4848 Passcode: 333394 JOINT MEETING AGENDA VILLAGE BOARD, PLAN COMMISSION, PUBLIC WORKS & UTILITY Richard Jung Fire Station – N54W26455 Lisbon Rd. (CTH K) WEDNESDAY, MARCH 25, 2026, at 6:30P.M. (or following Plan Commission, whichever is later) 1. Call to Order & Roll Call 2. New Business A. Open discussion regarding long -term development planning related to possible areas to include in future expansions of the sewer service area. 3. Adjournment NOTE: It is possible that members and/or a quorum of other governmental bodies may attend the above meeting to gather information. No action will be taken by any governmental body other than specifically noticed above. Citizens with disabilities who require assistance to participate in this meeting should contact Village Hall at least 72 hours in advance. VILLAGE OF RICHFIELD - WASHINGTON CO VILLAGE OF MENOMONEE FALLS VILLAGE OF LANNON VILLAGE OF MENOMONEE FALLS VILLAGE OF SUSSEX TOWN OF MERTON VILLAGE OF MERTON VILLAGE OF HARTLAND CITY OF PEWAUKEE VILLAGE OF PEWAUKEE WAUKESHA CO UV 164 UV 74 ") MD ") VV ") F ") K ") K ") VV ") Q ") KF RYAN RD DUPLAINVILLE RD SILVER SPRING DR HIGH RD MAPLE AVE NORTH RD CENTER OAK RD N L I S B O N R D WAUKESHA AVE COLGATE RD TOWN LINE RD WOODSIDE RD MARY HILL RD LISBON RD CANADIAN NATIONAL RR HILLSIDE RD L YNNDALE RD LAKE FIVE RD GOOD HOPE RD MAIN ST L I N D S A Y R D COUNTY LINE RD HICKORY RD SILVER SPRING DR LISBON RD PLAINVIEW RD UNION PACIFIC RR RICHMOND RD SEWRPC SSA (Approved 208 Boundary) Planned Sussex SSA Potential Additional SSAs Memorandum 1 Ballpark Commons Office Building 7044 South Ballpark Drive, Suite 200 Franklin, WI 53132 (414) 336-7900 foth.com January 21, 2026 TO: Dan Green, Village Administrator CC: Nick Wilichowski, DPW, Mike Yeager PE, Andy Schult z PE FR: Tom Ludwig PE RE: Village of Lisbon SSA Study, Focus Area 1-- Ric hmond School Sewershed 1. Study Summary To-Date We have reviewed existing Sussex intermunicipal sewer agreements, approved Sanitary Sewer Service Areas (SSA’s), planned SSA’s, and potential existing sewer connections to the Sussex Wastewater Treatment Facility as part of the overall SSA study. The goal of the study is to provide a comprehensive sewer plan to eventually submit for review and approval to the Southeastern Wisconsin Regional Planning Commission (SEWRPC). This plan will provide a mechanism to allow for future sewer extensions to serve planned sewered areas as identified by the Village Planning Commission (PC) and Board. The intent is for this plan to be conducted in concert with the Village’s Comprehensive Land Use Plan. The Village Planner will facilitate the discussion described further in this memo. We have identified five (5) focus areas to study in more detail and to break into manageable PC discussion sessions to solicit input for desired sewer system areas. Focus Area (FA) 1 is the Richmond School sewershed, as it may be necessary to submit this area to SEWRPC before the completion of the study due to the school’s ongoing sewage lift station issues. Attached please find FA1 Land Use Map, FA 1 Sewer Study Map, and a sewer computation sheet. The following is a description of the tasks that have been completed and pertinent map features to consider during the discussions. 2. Focus Area 1 2.1 General Study Tasks/Mapping/Computations The first attachment, the Land Use Map identifies current land uses that were used in the sewer flow calculations. Standard flow values per household were used and full buildout was assumed for the sewershed. The sewershed boundary, the pink line, is the estimated area that 2 can contribute basement gravity flow to the CTH K interceptor . Gravity flow is the most cost effective manner to convey sewage. Other key map attributes are as follows: 2.1.1 Approved SEWRPC 208 Boundary Indicated with a purple boundary. These are areas previously identified and approved through the formal SEWRPC process. Capacity has been reserved in the Sussex Wastewater Treatment Facility (WWTF). 2.1.2 Planned Sussex WWTF Areas Indicated with a blue dashed boundary. These areas, outside of the aforementioned 208 areas, have been included in the Sussex WWTF capacity sizing via intermunicipal agreements. 2.1.3 CTH K Sewershed Indicated with a pink boundary. As indicated, this is an estimated FA 1 boundary for basement gravity sewer service to the western terminus of the 15” sewer in CTH K (solid blue line). Parcels can be served adjacent to this boundary. A gravity extension (green line) can be extended adjacent to CTH K and would eliminate the Richmond School Lift Station. There are two “satellite” planned and approved sewer 208 areas depicted on the map that could also connect with some extensions to the CTH K interceptor further downstream if septic systems fail and/or there is desired higher density development in the southern portion of the Village. 2.2 Capacity and Estimated Flow The FA 1 sewershed was delineated into subcatchment areas for the purpose of flow generation, sewer pipe routing and sizing on a planning level basis. See the second and third attachments for the topographic map and flow computation sheet, respectively. By agreement, Lisbon can contribute a peak flow of 829,483 gallons per day (gpd) to Sussex through the west end of the interceptor. We estimate, based on current land uses, a peak flow of 593,000 gpd. The 15” pipe can physically convey 1,750,000 gallons per day. See the balloon callout on the map. In other words, Lisbon can convey an additional 829,483-593,000 = 236,000 gpd of peak flow by agreement to this connection. This can be realized by either higher densities or a larger sewershed. The other two balloons summarize flows for the two satellite areas, where they could connect, and the associated agreement capacities. 3. Requested PC Sewershed Feedback When considering the following feedback areas, review existing and potential development sewer needs that are substantially located in the pink sewered boundary and in and around the two satellite areas. The pink boundary identifies the general area to provide gravity sewer service, which is the most cost-effective service to provide in the long term. Areas can be located adjacent and outside of the boundary but should be limited in the amount of expansion due to cost of service and ultimate capacity limits. 3 Once we have gathered feedback, we will recompute sewer flows and compare them to the agreement and physical pipe and treatment plant capacities. We will follow this procedure for the subsequent FA’s 2-5. We fully anticipate that this may be an iterative process to match desired land use/flows with contractual and system capacities. The end results may be commensurate with Sussex agreement capacities or may necessitate future Sussex sewer planning amendments, capacity adjustments and negotiations, if so desired by the Village of Lisbon. 3.1 Review established development/neighborhoods and advise on likelihood of sewer service. Reserve capacity or delete from sewer consideration. 3.2 Any potential redevelopment areas requiring sewer service? 3.3 Any undeveloped areas that require or could support sewer service? 3.4 Any high density, high water use development areas desired for FA 1? . DRAFT DRAFT Project: Wastewater Conveyance Facility Plan CIPP 0.01 Type Density (DU/ac) Loading (GPD/ac) Type Loading (GPD/ac) Client: Village of Lisbon CMP 0.028 Rural Density 0.05 12 Industrial 1000 Sanitary Sewer Computation Sheet DIP 0.011 Suburban Density II 0.25 60 Mixed Use 900 HOBAS 0.009 Suburban Densitry I 0.45 108 Business/Commerical 800 Peaking Factor 2.5 HDPE 0.01 Low Density Residential 1.08 259 Gov & Institutional 600 Manning's Formula PVC 0.012 Medium Density Residentail 3.48 835 Ag, Parks, & Open Space neglible Q/A = V = (1.49*R^2/3*S^1/2)/n RCP 0.012 High Density Residentail 14.52 3485 Other VCP 0.013 *100 gpd/cap & 2.4 ppl/DU Manhole No. Manhole No. MH Start STA MH End STA Rim Elevation Depth UP MH Length Pipe Size (in) Invert UP Invert DWN Slope % Pipe Material n Velocity (fps) Q (cfs) Q (MGD) Q (% Full) RD (ac) Ave RD Flow (gpd) SDII (ac) Ave SDII Flow (gpd) SDI (ac) Ave SDI Flow (gpd) LDR (ac) Ave LDR Flow (gpd) MDR (ac) Ave MDR Flow (gpd) HDR (ac) Ave HDR Flow (gpd) Industrial (ac) Ave Indu Flow (gpd) Mixed Use (ac) Ave Mixed Use Flow (gpd) Bus/Com (ac) Ave Bus/Com Flow (gpd) Gov/Inst (ac) Ave Gov/Inst Flow (gpd) Other (ac) Ave Other Flow (gpd) Total Ave Flow (MGD) Peaking Factor Design Flow (MGD) 2.5 35 34 140+00 136+00 1060.25 10.55 400.00 8 1049.70 1048.10 0.40% PVC 0.012 2.37 0.83 0.54 2.5 34 33 136+00 132+00 1073.00 25.00 400.00 8 1048.00 1036.30 2.93% PVC 0.012 6.41 2.24 1.45 2.5 33 32 132+00 128+00 1059.50 23.30 400.00 8 1036.20 1034.60 0.40% PVC 0.012 2.37 0.83 0.54 2.5 32 31 128+00 124+00 1046.00 11.50 400.00 8 1034.50 1032.90 0.40% PVC 0.012 2.37 0.83 0.54 2.5 31 30 124+00 120+00 1046.00 13.20 400.00 8 1032.80 1031.20 0.40% PVC 0.012 2.37 0.83 0.54 2.5 30 29 120+00 116+00 1048.00 16.60 400.00 8 1031.40 1029.80 0.40% PVC 0.012 2.37 0.83 0.54 2.5 29 28 116+00 112+00 1048.00 18.30 400.00 8 1029.70 1028.10 0.40% PVC 0.012 2.37 0.83 0.54 15.6% 6.90 83 128.40 33,281 0.033 2.5 0.083 28 27 112+00 108+00 1053.00 25.00 400.00 8 1028.00 1021.10 1.72% PVC 0.012 4.93 1.72 1.11 7.5% 2.5 27 26 108+00 104+00 1046.00 25.00 400.00 8 1021.00 1017.10 0.97% PVC 0.012 3.70 1.29 0.84 10.0% 2.5 26 25 104+00 100+00 1042.00 25.00 400.00 8 1017.00 1009.50 1.88% PVC 0.012 5.14 1.79 1.16 7.2% 2.5 25 24 100+00 96+00 1033.75 24.35 400.00 8 1009.40 1007.80 0.40% PVC 0.012 2.37 0.83 0.54 15.6% 2.5 24 23 96+00 92+00 1032.50 24.80 400.00 8 1007.70 1006.10 0.40% PVC 0.012 2.37 0.83 0.54 15.6% 2.5 23 22 92+00 88+00 1031.00 25.00 400.00 8 1006.00 1003.10 0.72% PVC 0.012 3.19 1.11 0.72 18.6% 77.70 20,140 0.020 2.5 0.050 22 21 88+00 84+00 1028.00 25.00 400.00 8 1003.00 989.60 3.35% PVC 0.012 6.86 2.40 1.55 8.6% 2.5 21 20 84+00 80+00 1014.50 25.00 400.00 8 989.50 969.35 5.04% PVC 0.012 8.42 2.94 1.90 7.9% 55.20 5,962 0.61 488 0.006 2.5 0.016 20 19 80+00 76+00 994.25 25.00 400.00 8 969.25 955.10 3.54% PVC 0.012 7.05 2.46 1.59 9.4% 2.5 19 18 76+00 72+00 980.00 25.00 400.00 12 955.00 954.10 0.22% PVC 0.012 2.33 1.83 1.18 12.7% 2.5 18 17 72+00 68+00 979.00 25.00 400.00 12 954.00 953.10 0.22% PVC 0.012 2.33 1.83 1.18 20.4% 25.10 301 127.80 33,126 2.20 1,760 1,539 0.037 2.5 0.092 17 16 68+00 64+00 978.00 25.00 400.00 12 953.00 952.10 0.22% PVC 0.012 2.33 1.83 1.18 20.4% 2.5 16 15 64+00 60+00 977.00 25.00 400.00 12 952.00 951.10 0.22% PVC 0.012 2.33 1.83 1.18 20.4% 2.5 15 14 60+00 56+00 976.00 25.00 400.00 12 951.00 949.10 0.47% PVC 0.012 3.39 2.66 1.72 14.1% 2.5 14 13 56+00 52+00 974.00 25.00 400.00 12 949.00 943.10 1.47% PVC 0.012 5.97 4.69 3.03 8.1% 0.11 1 15.20 1,642 1.40 363 0.002 2.5 0.005 13 12 52+00 48+00 968.00 25.00 400.00 12 943.00 929.10 3.47% PVC 0.012 9.16 7.20 4.65 5.3% 2.5 12 11 48+00 44+00 954.00 25.00 400.00 15 929.00 910.10 4.72% PVC 0.012 12.40 15.21 9.83 4.3% 99.10 10,703 230.20 59,668 354 0.071 2.5 0.177 11 10 44+00 40+00 935.00 25.00 400.00 15 910.00 897.00 3.25% PVC 0.012 10.28 12.62 8.15 5.2% 2.5 10 9 40+00 36+00 916.00 19.10 400.00 15 896.90 896.30 0.15% PVC 0.012 2.21 2.71 1.75 24.4% 17.30 1,868 0.002 2.5 0.005 9 8 36+00 32+00 905.50 9.30 400.00 15 896.20 895.60 0.15% PVC 0.012 2.21 2.71 1.75 24.4% 2.5 8 7 32+00 28+00 903.33 7.83 400.00 15 895.50 894.90 0.15% PVC 0.012 2.21 2.71 1.75 24.4% 2.5 7 6 28+00 24+00 902.00 7.20 400.00 15 894.80 894.20 0.15% PVC 0.012 2.21 2.71 1.75 24.4% 2.5 6 5 24+00 20+00 902.00 7.90 400.00 15 894.10 893.50 0.15% PVC 0.012 2.21 2.71 1.75 24.4% 2.5 5 4 20+00 16+00 903.50 10.10 400.00 15 893.40 892.80 0.15% PVC 0.012 2.21 2.71 1.75 24.5% 28.90 347 0.000 2.5 0.001 4 3 16+00 12+00 905.00 12.30 400.00 15 892.70 892.10 0.15% PVC 0.012 2.21 2.71 1.75 32.1% 47.20 5,098 186.60 48,367 0.053 2.5 0.134 3 2 12+00 08+00 907.00 15.00 400.00 15 892.00 891.40 0.15% PVC 0.012 2.21 2.71 1.75 33.9% 0.59 7 35.40 3,823 32.70 8,476 0.012 2.5 0.031 2 1 08+00 04+00 910.00 18.70 400.00 15 891.30 890.70 0.15% PVC 0.012 2.21 2.71 1.75 33.9% 2.5 1 Ex 04+00 914.00 23.40 400.00 15 890.60 890.00 0.15% PVC 0.012 2.21 2.71 1.75 33.9% 2.5 2.5 18.70 4,847 0.005 2.5 0.012 2.5 139.70 36,210 14.60 12,194 0.048 2.5 0.121 2.5 0.291 0.727 Land Use Flow Loadings CTH K PROPOSED INTERCEPTOR TIKALSKI CTH K MISC Structures Pipe Capacity DRAFT Utility Financing 101: March 25, 2026 2 •Explain general funding concepts for utilities •Explain generally accepted repayment methods for utility infrastructure extensions •Answer your questions! Why are we here? 3 Why Wisconsin Governments Borrow • Administrative & operational • Public safety • Recreational Facilities • Streets • Utility systems • Sidewalks & trails Infrastructure • Machinery • Vehicles • Computers Equipment 4 •“Pay as you go”  Use existing budget, cash &/or reserves  Efficient for short-lived assets  Sometimes difficult to save enough  Those who “paid” may not benefit Types of Municipal Capital Financing 5 •Debt issuance  Preserve existing cash & resources  Cost of asset amortized over useful life  Asset paid for & benefited by users  Manage & stabilize tax rates, user fees  Most debt service exempt from levy limitation Types of Municipal Capital Financing 6 •General obligation •Revenue obligation Types of Pledge & Security 7 •Total amount outstanding – at any time – limited to 5% of total equalized valuation (Wisc. State Statutes) •Must be fully retired no later than 20 years from original issue date •Debt service exempt from municipal levy limits General Obligation (G.O.) Debt G.O. Promissory Notes G.O. Bonds 8 •Can be issued to finance “any revenue producing facility or enterprise owned by a municipality and operated for a public purpose”  Water, sanitary sewer, electric, nursing home, housing, etc.  Tax increment District (TID) projects •No dollar limit •Stated maturity no later than 40 years after original issue date •Can levy for revenue insufficiency under levy limits Revenue Obligations 9 •Debt Service Reserve Fund  Accounts for the accumulation of resources for, and the payment of, general long-term debt principal and interest •Debt Coverage Requirement & Additional Bonds Test Revenue Obligations, Continued… 10 •Sewer User Rates  Annual debt service payments + applicable debt coverage requirements built into annual user rate revenue requirement  Or annual depreciation and rate of return recovered  Asset cost spread over entire user system  Does the asset benefit system as a whole or just a subset of users? •Special Assessments  Village special assesses asset to benefitting property owners How are utility capital costs recovered? 11  Exercise of police powers and lien placed on benefitting properties  Generally appropriate for assets that benefit a specific area of the utility.  Typically, payable in lump sum or installments, can also be deferred until connection, BUT be careful to match revenues to debt service payments •Impact Fees and Connection Fees  One time fee to recognize the growth share of new capital facilities How are utility capital costs recovered? 12  Payable at issuance of building or occupancy permit  Impact fees require public facilities needs assessment report  Impact fees have 8-year time period for spending or refunding  Generally used for larger, regional assets, oversizing of mains  Require building permits/connections to system to recover asset costs! How are utility capital costs recovered?