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Denis LeBlanc U.S. Geological Survey Northborough, MA

The Hydrology of Cape Cod Streams Considerations for the Coonamesset River. Denis LeBlanc U.S. Geological Survey Northborough, MA. 40. Coonamessett River Water-Table Map from Ground-Water Flow Model Water-table contours in feet. 30. 20. 10.

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Denis LeBlanc U.S. Geological Survey Northborough, MA

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  1. The Hydrology of Cape Cod Streams Considerations for the Coonamesset River Denis LeBlanc U.S. Geological SurveyNorthborough, MA

  2. 40 CoonamessettRiver Water-Table Map from Ground-Water Flow Model Water-table contours in feet 30 20 10

  3. Contributing Area to the Coonamessett River River Discharge9.0 Mgal/dayContributing Area7.3 mi2

  4. CoonamessettRiver Contributing Areas Water-table contours in feet 60 50 40 30 20 10

  5. http://waterdata.usgs.gov/nwis

  6. Ground-Water Level Streamflow

  7. 8 Outlet of Last Bog Sandwich Road 6 5/24/89 4 MILLION GALLONS PER DAY 4/11/89 Hatchville Road 7/5/89 2 0 0 4000 8000 12000 16000 DISTANCE FROM POND OUTLET, IN FEET

  8. 8 6 4 MILLION GALLONS PER DAY 2 0 Nov-88 Jan-89 Mar-89 Apr-89 Jun-89 Aug-89 Sep-89 Nov-89 Outlet of Last Bog Sandwich Road Outlet of Pond

  9. Coonamessett River Summary • Ground water is main source of flow in Coonamessett River • Recharge area extends onto MMR • Flow varies directly with ground-water levels

  10. The Ground-Water Recharge Mosaic Water Budget In: Natural recharge 180 Mgal/d Onsite systems 7 Mgal/d Out: Wells 10 Mgal/d Streams 62 Mgal/d Coast 101 Mgal/d

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