Report, Band 10Johns Hopkins Press, 1918 CONTENTS.--Vol. I (1897)--Vol. II (1898)--Vol. III (1899)--Vol. IV (1902)--Vol. V (1905)--Vol. VI (1906)--Vol. VII (1908)--Vol. VIII (1909)--Vol. IX (1911)--Vol. X (1918)--Vol. XI (1922)--Vol. XII (1928)--Vol. XIII (1937)--Vol. 14 (1941) |
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Seite 25
... 94. View of Chemical Feed Controllers .. 95. View of Upper Service Pumping Station . 96. View of Coagulation Basins .. 496 497 498 499 PREFACE The present volume consists essentially of two general papers ILLUSTRATIONS 25.
... 94. View of Chemical Feed Controllers .. 95. View of Upper Service Pumping Station . 96. View of Coagulation Basins .. 496 497 498 499 PREFACE The present volume consists essentially of two general papers ILLUSTRATIONS 25.
Seite 239
... pumping wells , but where the outcropping edges of the water - bearing layers are at higher levels , flowing wells may be ... pumped by air compression . Quantity . Small to large . Moderate supplies have been obtained at many points ...
... pumping wells , but where the outcropping edges of the water - bearing layers are at higher levels , flowing wells may be ... pumped by air compression . Quantity . Small to large . Moderate supplies have been obtained at many points ...
Seite 240
... pumped by suction , some by force pumps . Quantity . Variable , often large ( lower horizon ) . A well at Jessups , Anne Arundel County , 180 feet in depth , furnishes 20 gallons per minute ; one at Hyattsville , Prince George's County ...
... pumped by suction , some by force pumps . Quantity . Variable , often large ( lower horizon ) . A well at Jessups , Anne Arundel County , 180 feet in depth , furnishes 20 gallons per minute ; one at Hyattsville , Prince George's County ...
Seite 242
... pumping , and at Naval Academy Junction in Anne Arundel County a well 315 feet deep yields 20 gallons per minute . Quality ... pumped . Quality . Usually hard , with iron in variable quantities , but in general good for potable purposes ...
... pumping , and at Naval Academy Junction in Anne Arundel County a well 315 feet deep yields 20 gallons per minute . Quality ... pumped . Quality . Usually hard , with iron in variable quantities , but in general good for potable purposes ...
Seite 243
... pumping by suction pumps . Quantity . - Large and small . Among small wells may be mentioned . one at Millersville ... ( pumped with an air compressor ) ; at the Annapolis Water Works , Anne Arundel County , from four wells 135 to 160 ...
... pumping by suction pumps . Quantity . - Large and small . Among small wells may be mentioned . one at Millersville ... ( pumped with an air compressor ) ; at the Annapolis Water Works , Anne Arundel County , from four wells 135 to 160 ...
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Häufige Begriffe und Wortgruppen
30 feet Allegany County Anne Arundel County Aquia Average elevation Baltimore beds beneath the surface Blue Ridge Calvert Capacity of reservoir carried to reservoir Cecil County Chesapeake Bay Choptank City Clark Hoshall Coastal Plain Creek Cretaceous crystalline rocks Cumberland Curtis Bay Daily consumption Delaware deposits Diameter district Downin drilled Eastern Shore Elevation above source elevation above town Eocene feet beneath feet deep feet in depth Fire hydrants flow formation Frederick gallons per minute Garrett County Geological glauconite gneiss gravel gray Hagerstown Hard head inches iron limestone lower Magothy Mary's Maryland Matawan miles Miocene Mountain Municipality Nanjemoy Patapsco Patuxent peneplain Percentage of population Piedmont Plateau Pleistocene population supplied Potomac River Prince George's County Public supply sand sandstone sandy clay shales shallow Soft southern Sparrows Point springs streams SURFACE WATERS surface yields UNDERGROUND WATERS Upper valleys Washington water horizons Waterworks western Wicomico Worcester County