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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 330

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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
453302122504101 WASH 330 1 0 127 BORING LAVA Basalt --
453302122504101 WASH 330 2 127 405 TROUTDALE FORMATION Clay --
453302122504101 WASH 330 3 405 455 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt FLOW 1
453302122504101 WASH 330 4 455 515 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt FLOW 2
453302122504101 WASH 330 5 515 555 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt --
453302122504101 WASH 330 6 555 560 VANTAGE MEMBER (INFORMAL USAGE) OF ELLENSBURG FORMATION Siltstone --
453302122504101 WASH 330 7 560 615 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
453302122504101 WASH 330 8 615 618 ELLENSBURG FORMATION Claystone --
453302122504101 WASH 330 9 618 665 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
453302122504101 WASH 330 10 665 670 ELLENSBURG FORMATION Basalt --
453302122504101 WASH 330 11 670 745 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
453302122504101 WASH 330 12 745 825 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
453302122504101 WASH 330 13 825 865 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 3
453302122504101 WASH 330 14 865 895 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 4
453302122504101 WASH 330 15 895 900 ELLENSBURG FORMATION Claystone --
453302122504101 WASH 330 16 900 1005 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt --
453302122504101 WASH 330 17 1005 1130 WAPSHILLA RIDGE UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
453302122504101 WASH 330 18 1130 -- WAPSHILLA RIDGE UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
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Page Last Modified: Wednesday, 09-Jan-2013 18:51:22 EST