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Oregon Water Science Center

Columbia River Basalt Stratigraphy in Oregon

In Cooperation with the Oregon Water Resources Department (OWRD)

Table of Geologic Units for Site WASH 886

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USGS Site ID: Site identification number permanently assigned to the well by the U.S. Geological Survey and recorded in National Water Information System (NWIS), a national computer database maintained by U.S. Geological Survey.

Sequence Number: Sequence number assigned to identify a record.

Depth to Top of Interval: The depth to the top of this unit, in feet below land surface.

Depth to Bottom of Interval: The depth to the bottom of this unit, in feet below land surface. This field should be specified for all units, except the last one in the hole.

Unit code: The name of aquifer or geologic unit stored by the U.S. Geological Survey in National Water Information System (NWIS), a national computer database maintained by U.S. Geological Survey.

Lithology code: The principal lithology of this unit stored by the U.S. Geological Survey in National Water Information System (NWIS), a national computer database maintained by U.S. Geological Survey.

Description of material: The adjective modifier to describe the rock type.

--, no data/unknown.

USGS Site ID Well Log ID Sequence Number Depth to Top of Interval Depth to Bottom of Interval Unit code Lithology code Description of material
453612122541301 WASH 886 1 0 55 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt --
453612122541301 WASH 886 2 55 110 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt --
453612122541301 WASH 886 3 110 115 VANTAGE MEMBER (INFORMAL USAGE) OF ELLENSBURG FORMATION Claystone --
453612122541301 WASH 886 4 115 268 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt --
453612122541301 WASH 886 5 268 445 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt --
453612122541301 WASH 886 6 445 550 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
453612122541301 WASH 886 7 550 600 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
453612122541301 WASH 886 8 600 650 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt FLOW 3
453612122541301 WASH 886 9 650 -- GROUSE CREEK UNIT OF GRANDE RONDE BASALT Basalt --
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Page Last Modified: Wednesday, 09-Jan-2013 18:51:31 EST