Fifth and Twenty-fifth Percentile Estimates for Copper BLM Input Parameters by Oregon Level III Ecoregion March 14, 2016

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Fifth Percentile Estimates for Level III Ecoregions in Oregon 

Level III 

Ecoregion

Stream 

Order

Calcium 

(mg/L)

Magnesium 

(mg/L)

Sodium 

(mg/L)

Potassium 

(mg/L)

Alkalinity 

(mg/L)

Chloride 

(mg/L) Sulfate (mg/L)

DOC

(mg/L)

1. Coast Range

SO 1-3 4.9 0.7 1.2 0.1 36.6 0.5 1.0

SO 4-6 3.1 0.8 1.8 0.2 12.6 0.9 1.6 0.4

SO 7-9 11.2 3.2 4.0 0.7 52.1 2.0 5.9

3. Willamette 

Valley

SO 1-3 4.5 1.6 3.2 0.5 26.0 2.2 1.0

SO 4-6 2.4 1.0 2.4 0.4 24.0 3.1 0.5 0.4

SO 7-9 4.7 1.5 3.3 0.6 20.0 2.4 2.1

4. Cascades

SO 1-3 0.9 0.1 1.7 0.1 - 0.3 0.2

SO 4-6 3.3 0.9 2.8 0.4 15.5 0.7 0.5 0.2

SO 7-9 12.5 3.3 3.3 0.9 49.9 1.5 5.7

9. Eastern 

Cascades Slopes 

and Foothills

SO 1-3 6.0 1.2 2.5 0.5 35.0 0.2 1.0

SO 4-6 5.2 0.8 2.2 0.5 20.0 0.5 2.1 0.3

SO 7-9 - - - - - - -

10. Columbia 

Plateau

SO 1-3 16.8 4.8 6.4 1.3 43.4 3.2 6.5

SO 4-6 7.6 2.4 3.2 0.7 25.9 0.9 2.4 0.6

SO 7-9 4.1 0.9 1.9 0.6 14.1 0.5 2.0

11. Blue 

Mountains

SO 1-3 8.6 3.2 49.0 3.7 169.0 11.0 24.0

SO 4-6 3.3 0.7 1.3 0.7 13.6 0.2 0.4 0.7

SO 7-9 7.4 1.1 2.8 0.7 27.2 0.6 3.7

12. Snake River 

Plain

SO 1-3 11.9 1.6 4.5 0.6 32.5 0.9 1.7

SO 4-6 11.0 1.8 4.2 0.9 33.0 1.4 3.1 1.2

SO 7-9 23.3 8.1 11.0 1.9 109.9 8.9 22.1

78. Klamath 

Mountains

SO 1-3 5.4 5.1 4.9 0.3 - 2.1 1.8

SO 4-6 7.3 3.0 3.7 0.5 30.8 1.7 1.9 0.5

SO 7-9 - - - - - - -

80. Northern 

Basin and Range

SO 1-3 6.1 1.0 3.0 1.0 23.0 0.2 1.9

SO 4-6 16.8 5.9 3.6 0.6 42.0 1.3 7.3 0.9

SO 7-9 8.9 2.4 7.7 2.1 - 2.1 5.1
Fifth and Twenty-fifth Percentile Estimates for Copper BLM Input Parameters by Oregon Level III Ecoregion March 14, 2016

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Twenty-fifth Percentile Estimates for Level III Ecoregions in Oregon 

Level III 

Ecoregion

Stream 

Order

Calcium 

(mg/L)

Magnesium 

(mg/L)

Sodium 

(mg/L)

Potassium 

(mg/L)

Alkalinity 

(mg/L)

Chloride 

(mg/L) Sulfate (mg/L)

DOC

(mg/L)

1. Coast Range

SO 1-3 8.5 1.1 1.8 0.2 50.9 0.8 2.7

SO 4-6 5.7 1.3 3.0 0.5 19.0 2.7 3.8 0.9

SO 7-9 13.9 3.9 4.9 0.9 62.0 2.9 7.7

3. Willamette 

Valley

SO 1-3 10.6 3.8 5.9 1.5 42.0 4.7 3.2

SO 4-6 8.0 2.8 5.2 0.9 33.0 4.0 3.0 0.6

SO 7-9 5.7 1.9 4.1 0.7 22.8 3.1 2.9

4. Cascades

SO 1-3 2.5 0.8 2.0 0.4 - 0.6 0.3

SO 4-6 4.0 1.1 3.0 0.5 16.5 1.2 1.1 0.4

SO 7-9 15.9 4.1 4.5 1.0 58.3 2.2 8.7

9. Eastern 

Cascades Slopes 

and Foothills

SO 1-3 14.5 8.0 23.0 3.5 35.0 0.5 3.2

SO 4-6 6.9 1.7 3.5 0.6 31.0 0.9 2.9 0.6

SO 7-9 - - - - - - -

10. Columbia 

Plateau

SO 1-3 31.2 12.2 18.8 2.8 113.0 7.8 24.0

SO 4-6 13.0 4.9 7.0 1.7 54.0 2.6 6.1 1.4

SO 7-9 14.5 4.0 2.4 0.8 20.0 1.2 7.7

11. Blue 

Mountains

SO 1-3 12.4 6.2 49.0 3.7 169.0 11.0 24.0

SO 4-6 5.0 1.4 2.1 1.0 23.0 0.5 0.9 1.2

SO 7-9 15.0 2.9 5.7 1.0 55.3 1.5 7.8

12. Snake River 

Plain

SO 1-3 21.3 3.7 11.2 2.3 41.0 3.4 10.1

SO 4-6 21.9 5.9 9.4 1.9 65.3 4.4 7.9 1.4

SO 7-9 41.8 13.0 19.7 3.3 138.5 18.8 38.0

78. Klamath 

Mountains

SO 1-3 17.4 8.2 5.0 0.4 - 2.5 4.4

SO 4-6 8.8 3.9 4.6 0.7 39.0 2.8 3.4 0.6

SO 7-9 - - - - - - -

80. Northern 

Basin and Range

SO 1-3 7.2 1.7 6.7 2.8 27.0 0.7 3.3

SO 4-6 44.0 9.4 4.1 0.8 137.8 2.5 10.2 1.3

SO 7-9 8.9 2.4 7.7 2.1 - 2.1 5.1
Fifth and Twenty-fifth Percentile Estimates for Copper BLM Input Parameters by Oregon Level III Ecoregion March 14, 2016

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