 
              Public Information Session May 2012
 Created and charged at May 3, 2010 Town Meeting  Purpose  Four guidelines driving the study ◦ Sustainability of a clean water supply ◦ Economics ◦ Environmental ◦ Consistency with community character  Study Area ◦ Village Common District ◦ Village Overlay District
• Provide sewering to enable growth In the VCD/VOD • Create affordable limited sewering that does not require funding via the wider community (user based) • Limited sewering prevents sprawling growth and maintains Littleton’s character
 Treatment plant design (phasing)  Distribution Design  Economics of sewer district  Life cycle costs  Power generation
 Ted Doucette, Chair - Board of Selectmen  Megan Ford, Vice-chair – Citizen at Large  Peter Cassinari – Board of Health  Joe Collentro - Permanent Municipal Building Committee  Richard Crowley – Planning Board  Savas Danos – LELWD  Stephen Jahnle – Citizen at large  Donald MacIver – Citizen at large  Ken Smith – Citizen at large  Warren Terrell – Citizen at large
 Charles River Watershed Association (CRWA)  Natural Systems Utilities (NSU) - Grant obtained by CRWA (from Barr) $100,000 - CRWA in kind work $25,000
 Approved at town meeting $50,000  Expenses to date ◦ Natural Systems Utilities $28,500 ◦ Admin/misc $500 ◦ Soil testing (budget) $10,000 ◦ Balance/other expenses (SP details, permits) $11,000
Definition: Systems that are traditionally used to collect municipal wastewater in gravity and/or pressure sewers and convey it to a central primary treatment plant, before discharge on receiving surface waters. Large capital expenses are bonds paid by the general fund - all taxpayers contribute whether or not they are served by the system. Typical process with conventional sewer:  Target sewer district/area  Calculate maximum flows and capacity  Preliminary Design  Design system for full build out and capacity  Apply to State for Permit  Town Meeting approve funding  Bid documents and bid award  System construction  System operational and property connections
 Chelmsford ◦ $165 million ◦ 3.1 million GPD discharged out of district  South Acton ◦ Cost being borne by tax base ◦ Full capacity built - actual flow underutilized  Tewksbury ◦ Cost shifted to all tax payers ◦ Discharged out of district
 Smart Sewer Overview ◦ Wastewater is a resource ◦ Smart Growth  Enhances economic growth  Reduces overall energy  Increases short term affordability  Optimizes benefits to environment
 Economic Component of Smart Sewers  Sewer districts  Installed in response to growth/demand  Focuses development  Reduces risk of conventional sewer  Reduced upfront capital  Installed in response to demand  Paid by users  Betterment  User fees
Reducing carrying costs by using technologies that are  affordable at small scale and then installing capacity in phases to match growth – “just -in- time, “fit -for- purpose” Large carrying costs – higher risk or tax increase to subsidize user rate Small carrying costs – reduced risk to tax base and user
 Economic and Environmental benefits (Potential future phases) ◦ Subsidizing service from:  Water reuse  Energy generation  Anaerobic digestion of organic matter  Reduces methane gas in environment ◦ Reduced Disposal Fees  Septage  Food waste
 Environmental Benefits ◦ Water goes back to the source  Preserves natural flows ◦ Improves water quality (eliminates septic)  Reduces nitrate burden
carbon carbon water water cost nutrients nutrients
carbon carbon water water cost nutrients nutrients carbon water Potential income nutrients
 Property improvements  Variety of businesses ◦ High density mixed use  Increase in tax base ◦ Improved buildings leads to property tax increase  Revenue generated by sewer district  Development is confined to service area  Minimal risk to tax payers outside of district ◦ Construction paid by betterments ◦ Operation and maintenance paid by user fees ◦ Funds paid out by town roll into district expenses
 Costs ◦ Setup of (sewered) development overlay district ◦ Wastewater design and construction  Benefits ◦ Energy generation from wastewater ◦ Sprawl contained - less utility costs ◦ Open space protection - resource value ◦ Tax revenues from overlay district and development rights  Source CRWA
 Process ◦ Mapping ◦ Sewer Survey ◦ Preliminary design calculations ◦ Smart Sewering Analysis ◦ Meeting with property owners ◦ Financial
Map appin ing
 Town provided priorities for a sewer system in Littleton – Community Values Assessment ◦ Financial – paid by users not taxes ◦ Aquifer Protection ◦ Reduce solid waste by-product ◦ Quality of life – scenic vistas Survey of Property Owners in VCD and VOD - 95% of respondents interested
Respons onses Parcels ls % parcels Acres % acreag age Yes, interested 69 78.4% 108.1 67.2% Need more info 17 19.3% 47.4 29.5% Not interested 2 2.3% 5.4 3.3% Sub-total 88 100.0% 160.8 100.0% No response 37 28.0 Total 125 188.8
 Calculated flow for build out of study area  Estimated the length, cost of collection systems
 Reuse water – flush water, irrigation  Biogas – sell or use to power treatment plant  Anaerobic Digestion – septage, tipping fee  Food Waste – tipping fee, anaerobic digestion  Partnership with land owners subsidize costs  Transfer of Development Rights
 Growth Projects ◦ Local build out, national trends, New England/Massachusetts recovery, I495 Metrowest  Financial Model ◦ Parameters – phasing, cost of land, private vs. public financing, connection fees, subsidies  Ownership Options ◦ Municipal, Quasi-Government, Private non-profit, Public Private Partnership  Conclusions
 The LCSFC feels that the results of the report indicate a sewer common district is financially viable in the Littleton Common.  Requesting $35,000, offset by additional Payment in Lieu of Taxes (PILOT) by LELWD, budget neutral, to go through the next steps ◦ Further Hydro/Geo Study ◦ Request for Qualifications ◦ Owners Representative
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