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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 61622

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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
452450122481301 WASH 61622 1 0 65 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt --
452450122481301 WASH 61622 2 65 255 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
452450122481301 WASH 61622 3 255 310 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
452450122481301 WASH 61622 4 310 410 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
452450122481301 WASH 61622 5 410 460 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt GROUSE CREEK; FLOW 2
452450122481301 WASH 61622 6 460 505 GROUSE CREEK UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
452450122481301 WASH 61622 7 505 550 GROUSE CREEK UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
452450122481301 WASH 61622 8 550 555 ELLENSBURG FORMATION Siltstone --
452450122481301 WASH 61622 9 555 685 WAPSHILLA RIDGE UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
452450122481301 WASH 61622 10 685 880 WAPSHILLA RIDGE UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
452450122481301 WASH 61622 11 880 995 WAPSHILLA RIDGE UNIT OF GRANDE RONDE BASALT Basalt FLOW 3
452450122481301 WASH 61622 12 995 -- WAPSHILLA RIDGE UNIT OF GRANDE RONDE BASALT Basalt FLOW 4
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Page Last Modified: Wednesday, 09-Jan-2013 18:53:57 EST