Oregon Water Resources Department
Groundwater Information System Mapping Tool

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Nbr of Measured BLSD

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Observation Wells (Statewide)

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Hydrography/River Miles

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river_mile_anno_L12

rivemileannol12

river_mile_anno_L13

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river_mile_anno_L14

rivemileannol14

river_mile_anno_L15

rivermileannol15

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rivermileannol16

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Water Quality Limited Pollutant - 2018

ODFW Fish Habitat Distribution - 2018

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Deschutes Groundwater Mitigation Program

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Area above Grande Ronde, Wallawa, and Minam SSWs in Alluvium

Concern Ratings

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Exceeded Decline Permit Conditions

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Permit Applications found Beyond the Capacity of the Resource

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Availability of Hydraulically Connected SW

Hydraulic Connection Determinations in GW Technical Reviews

Blank: Insufficient Data

Majority Not Connected

Majority Connected Townships Colored as Below

Availability of Surface Water in August in Townships Typically Hydraulically Connected

Blank: insufficient Data

>75%

<=75%

Well Yields

Median Yield among Irrigation Wells (among>=3 tests)

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>400

Estimated Minimum Well Yield for Irrigation

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>300

Yield-Limited Townships

DOGAMI Geology

Faults

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Geologic polygon contact lines

Group/Terrane

Quaternary Surficial Deposits

Quaternary Volcanics

Boring Volcanic Field

Late High Cascade Volcanics

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Dalles Group

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Neogene sedimentary rocks

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Early Winema Volcanic Field

Harney Basin Volcanic Field

High Lava Plains Volcanic Province

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Lake Owyhee Volcanic Field

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Neogene volcanic rocks

Oregon-Idaho Graben

Powder River Volcanic Field

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Northern Nevada Volcanics

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Columbia River Basalt Group

Coastal alkalic basalts

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Astoria Group

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Elkton-Yamhill Group

Keasey-Alsea Group

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Tyee Group

Whalecove-Gnat Creek Group

Yaquina-Pittsburg Bluff Group

Early Western Cascade Volcanics

Goble Group

John Day/Clarno Group

Late Western Cascade Volcanics

Little Butte Volcanics

Paleogene volcanic rocks

Siletz Terrane

Mitchell Group

Myrtle Group

Paleogene sedimentary rocks

Nevadan intrusives

Applegate Group

Baker Terrane

Condrey Mountain Terrane

Gold Beach Terrane

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Mountain Home Complex

Olds Ferry Terrane

Pickett Peak Terrane

Pueblo Mountain Metamorphic Complex

Sexton Mountain Terrane

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1	3430	MARI0002979	Details	205	Log	04/05/1961	10/09/2025	230	700	105650	613	State Obs Well Current	Quaternary-Late Tertiary sediment Aq	45.08060011	-122.74865991

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Hydrograph (wl count)

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Oregon Water Resources Department Groundwater Information System Mapping Tool

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Public Land Survey System

Oregon Water Resources Department
Groundwater Information System Mapping Tool