Sewers vs. Sewer Avoidance: The Old Lyme Story Bonnie Reemsnyder, First Selectwoman Town of Old Lyme Dave Prickett, PE, Vice President Woodard & Curran CAWPCA Fall Meeting November 1, 2013

OUTLINE The Old Lyme Story Planning Overview Key Observations 2

THE OLD LYME STORY 3

PLANNING OVERVIEW 4

Goals and Key Tasks  Project area as a whole  Evaluate needs  On-site soils/groundwater testing Develop and evaluate local and regional alternatives  Public participation program  Prepare recommended plan for WPCA 5

Needs Analysis  Drivers include lot size, water service, soil and groundwater conditions, and natural resources  90% of Project Area flows in 5 of the sub-areas comprising service area 6

Local Alternative - Disposal and Reuse  Flows  Average  Max Day  Testing overview  Soils  Groundwater  Mounding analysis 7

Year-Round Disposal/Reuse Needs 8

Year-Round Disposal/Reuse Solutions 9

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Local Alternative - Treatment  Reuse requires higher level of treatment  2-3 acre site 11

Local Alternative Summary 12

Regional Alternative – Collection 13

Regional Alternative Summary 14

Comparison of Alternatives 15

Recommended Plan  Strong local support expressed by WPCA and Selectmen  Control & Flexibility 16

KEY OBSERVATIONS 17

Public Participation Program  Wastewater terminology  Sewer vs non-sewer  Local vs regional  Centralized vs decentralized  Wastewater composition  Project stakeholders  Town/WPCA  Beach communities  Downstream communities  CT-DEEP  Consultants 18

Collection System Options Impact Treatment and Disposal Alternatives 19

Presentation of Costs  Capital  O&M  Annualized  Present Worth  Unit Costs  Cost per EDU 20

The Importance of a Reuse Partner… 21

Implementation Strategies  With sewers comes sewer sprawl, right?  Similar risk for regional and local alternatives if not mitigated  Tools  Define sewer service area  Allocate wastewater capacity  Consider zoning restrictions  Develop sewer use regulations 22

QUESTIONS? 23