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Legend (dynamic/Oregon_GW_Resource_Concerns_2021)

GW Restricted Areas (0)
Deschutes Groundwater Mitigation Program (2)
Area above Klamath, Rogue, and Illinois SSWs (3)
Area above Grande Ronde, Wallawa, and Minam SSWs in Alluvium (4)
Concern Ratings (5)
Significant Concern Significant Concern
Concern Concern
Yield-Limited Yield-Limited
No Concerning Data No Concerning Data
Wells with Excessively Declined or Declining Water Levels (7)
0 0
1 1
2 2
3-5 3-5
6-10 6-10
>10 >10
Wells with Moderately Declined Water Levels (8)
0 0
1 1
2 2
3-5 3-5
6-10 6-10
>10 >10
Exceeded Decline Permit Conditions (9)
0 0
1 1
2 2
3-5 3-5
6-10 6-10
>10 >10
Permit Applications found Beyond the Capacity of the Resource (10)
0 0
1 1
2 2
3-5 3-5
6-10 6-10
>10 >10
Hydraulic Connection Determinations in GW Technical Reviews (12)
Blank: Insufficient Data Blank: Insufficient Data
Majority Not Connected Majority Not Connected
Majority Connected Townships Colored as Below Majority Connected Townships Colored as Below
Availability of Surface Water in August in Townships Typically Hydraulically Connected (13)
Blank: insufficient Data Blank: insufficient Data
>75% >75%
<=75% <=75%
Median Yield among Irrigation Wells (among>=3 tests) (15)
Insufficient Data Insufficient Data
0-50 0-50
<=100 <=100
<=150 <=150
<=200 <=200
<=400 <=400
>400 >400
Estimated Minimum Well Yield for Irrigation (16)
Insufficient Data Insufficient Data
0-50 0-50
<=100 <=100
<=200 <=200
<=300 <=300
>300 >300
Yield-Limited Townships (17)