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Project Coordination ActivitiesProject Coordination Activities
Meeting with Cape Cod National Meeting with Cape Cod National Seashore –Seashore – August 27 August 27
Cape Cod Commission Cape Cod Commission USDA Meeting – September 16USDA Meeting – September 16
Nauset Regional High School
Drill Site
Drill Site at NRHS
Mud System
Drill Cuttings - Aquifer Zone
Well Screen
Well Development
Nauset High SchoolHydrogeologic Conditions
Deep boring installed to 400’
Water table at 50’
Good material to 105’Silts and clays below
Installed well at 90’
District H District H
District HDistrict HHydrogeologic Conditions Summary Hydrogeologic Conditions Summary
Deep boring: 405’ bgsDeep boring: 405’ bgs DTW – 30’ bgsDTW – 30’ bgs Potentially productive zones:Potentially productive zones:
Shallow 106-116’ bgsShallow 106-116’ bgsIntermediate 207-217’ bgsIntermediate 207-217’ bgs
Freshwater/Saltwater Interface 343 feetFreshwater/Saltwater Interface 343 feet
District HWell Installations
Deep well: 346’Deep well: 346’
Intermediate well: 207’ Intermediate well: 207’
Shallow well: 116’Shallow well: 116’
District H
Well Development
District H
Well Development
District H Drill Log
Potentially productive aquifer zone (sand) 80-218’
Fresh Water/Salt water interface: 143’ bgs
Specific Capacity Shallow: 33 gpm/ft Intermediate: 5-10+ gpm/ft
Water quality: Shallow – excellentIntermediate – Waiting on data
Silt and Clay
Sand
Fresh WaterSalt Water
District HDistrict HHydrogeologic IssuesHydrogeologic Issues
Response of salt water transition zone Response of salt water transition zone with pumpingwith pumping
Proximity of vernal poolsProximity of vernal pools Groundwater/vernal pool interactionGroundwater/vernal pool interaction
District H Deep Test Well
19.00
19.25
19.50
19.75
8/27/09 8/28/09 8/29/09 8/30/09 8/31/09 9/1/09 9/2/09 9/3/09 9/4/09 9/5/09
Tidal influences on water level in deep test well
Vernal Pools
Single Family Residential> 80,000 sq. ft.
General Business
General Industrial
Single Family Residential 40,000-79,999 sq. ft.
Conservation/Passive Recreation
District GDrill Site
•Drill site and 400’ buffer entirely within Town-owned land
• Currently installing deep boring
• Site has available land for more than one test site
Eastham Water Supply Investigations
Updated Schedule
8 15 22 29 6 13 20 27 3 10 17 24 31 7 14 21 28 5 12 19 26 2 9 16 23 30 7 14 21 28 4 11 18 25 1 8 15 22 1 8 15 22 29
Phase I Tasks
Task 1. Project and Regulatory Coordination
Task 2. Orleans Water Source Feasibility Study
Task 3. Site Survey
Task 4. Initial Site Investigations
Nauset Regional High School
District H
District G
Task 5. Groundwater Modeling
Task 6. Request for Site Exam
Nauset Regional High School
District H
District G
Task 7. Request Approval to Conduct Pump Test
NovemberOctober FebruaryDecember2009 2010
Project Task June JanuaryJuly August MarchSeptember
Discussion