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EASTHAM WATER SYSTEM

EASTHAM WATER SYSTEM. MONDAY MAY 7, 2012 . MAY 4, 2009 Annual Town Meeting Article 17 – Town-Wide Water System. Pump tests – Districts G, H, and NRHS Quantity and quality of water All required well source permitting for up to 1 MGD from each site.

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EASTHAM WATER SYSTEM

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  1. EASTHAM WATER SYSTEM MONDAY MAY 7, 2012

  2. MAY 4, 2009 Annual Town Meeting Article 17 – Town-Wide Water System • Pump tests – Districts G, H, and NRHS • Quantity and quality of water • All required well source permitting for up to 1 MGD from each site. • Feasibility and costs of obtaining 0.5 MGD or more water from Orleans

  3. 1951 and 1999 Land Cover of Cape Images courtesy of Woods Hole Research Center.

  4. Saltwater Lens (Modified from Masterson 2004)

  5. ONEMGD Leach field Downgradient well Nitrate Pharmaceuticals c Household Products

  6. Source: Cape Cod Commission

  7. NITRATE IS AN INDICATOR OF WASTEWATER IN WELL WATER MORE NITROGEN = MORE CONTAMINANTS 5 PPM NITRATE --- WELL WATER IS 1/8 RECONSTITUTED WASTEWATER (COUNTY HEALTH DIRECTOR)

  8. 2011 Silent Spring Institute Study“Emerging Contaminants In Cape Cod Private Drinking Water Wells – 2011” • Sampled private wells across the Cape • Tested for “Emerging Contaminants” from septic systems: 27 detected Pharmaceuticals Cleaning Solutions Flame retardants Hormones Metals Insect Repellents Personal Care Products • Possible health effects, unregulated, untested

  9. Bedroom density and nitrate levels • “Short circuiting” is occurring due to small lot size and large number of wells and septic systems; • High number of samples > 2mg/L validates that entire groundwater system is showing nitrogen impacts from septic systems

  10. Bedroom density and nitrate levels 70% of single family residences (7 out of 10 homes) exceed the Title 5 standard for density on nitrogen sensitive lots – Eastham 2012

  11. . Supply Sources NRHS: .88 MGD District G: .99 District H 1.3 MGD

  12. PHASE 1 • WELLFIELDS • TRANSMISSION MAINS • STORAGE TANKS • CONNECTION OPPORTUNITIES: • 1391 total • 1157 residential • 68 commercial • 166 other

  13. Phase 2 1126 Connections 95% Fire protection

  14. Phase 3 1117 Connections

  15. Phase 4 1079 Connections

  16. Phase 5 1502 Connections

  17. Phase 6 Seashore Area 284 Connections

  18. Town-wide Water System Total Cost: $111M Includes: Final Design/Specifications and Bidding Construction/Construction Management OPM Inflation Contingencies

  19. ANNUAL TAX IMPACT WATER PROJECT YEAR TAX IMPACT / $1,000 TAX / $400K HOUSE 2015 $0.23 $93.00 2020 $1.40 $558.35 2025 $2.08 $833.81 2045 $0.06 $24.40 OVER PERIOD 2014 - 2045 TOTAL MUNICIPAL DEBT PAID: $135.9M TOTAL PAID FOR AVERAGE $400K HOUSE: $16,768

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