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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 58003

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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
452452122470101 WASH 58003 1 0 80 FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt --
452452122470101 WASH 58003 2 80 88 ELLENSBURG FORMATION Claystone --
452452122470101 WASH 58003 3 88 130 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
452452122470101 WASH 58003 4 130 165 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
452452122470101 WASH 58003 5 165 230 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
452452122470101 WASH 58003 6 230 295 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 1 PILLOW LAVA
452452122470101 WASH 58003 7 295 436 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
452452122470101 WASH 58003 8 436 490 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt FLOW 1 GROUSE CREEK
452452122470101 WASH 58003 9 490 564 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt FLOW 2 GROUSE CREEK
452452122470101 WASH 58003 10 564 -- ORTLEY UNIT OF GRANDE RONDE BASALT Basalt FLOW 3 GROUSE CREEK
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Page Last Modified: Wednesday, 09-Jan-2013 18:53:43 EST