### Fifth and Twenty-fifth Percentile Estimates for Copper BLM Input Parameters by Oregon Level III Ecoregion March 1 4, 2016

1 **Fif th**  **P ercentile**  **E stimates for**  **Level III Ecoregions in Oregon Level III**  **Ecoregion Stream**  **Order Calcium** 

**(m g/L)**  **Magnesium**

**(m g/L)**  **Sodium**

**(m g/L)**  **Potassium**

**(m g/L)**  **Alk alinity** 

**(m g/L)**  **Chloride**

**(m g/L)**  **Sulfate (mg/L) DOC**  **(m g/L)**  **1 .**  **Coast Range** SO 1 -3 4.9 0.7 1.2 0.1 36.6 0.5 1.0 0.4

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

SO 4 - 6 2.4 1.0 2.4 0.4 24.0 3.1 0.5 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 0.2

SO 4 - 6 3.3 0.9 2.8 0.4 15.5 0.7 0.5 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 0.3

SO 4 - 6 5.2 0.8 2.2 0.5 20.0 0.5 2.1 SO 7 -9 - - - - - - - **10 .**  **Columbia Plateau**  SO 1 -3 16.8 4.8 6.4 1.3 43.4 3.2 6.5 0.6

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

SO 4 - 6 3.3 0.7 1.3 0.7 13.6 0.2 0.4 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 1.2

SO 4 - 6 11.0 1.8 4.2 0.9 33.0 1.4 3.1 SO 7 -9 23.3 8.1 11.0 1.9 109.9 8.9 22.1 **78 .**  **Klam ath**  **Mountains** SO 1 -3 5.4 5.1 4.9 0.3 - 2.1 1.8 0.5

SO 4 - 6 7.3 3.0 3.7 0.5 30.8 1.7 1.9 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 0.9

SO 4 - 6 16.8 5.9 3.6 0.6 42.0 1.3 7.3 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 1 4, 2016

2 **Tw enty** **- fif** 

**th P** **ercentile E** **stimates for Level III Ecoregions in Oregon**  **Level III Ecoregion**  **Stream Order**  **Calcium**

**(m g/L)**  **Magnesium**

**(m g/L)**  **Sodium**

**(m g/L)**  **Potassium**

**(m g/L)**  **Alk alinity** 

**(m g/L)**  **Chloride**

**(m g/L)**  **Sulfate (mg/L) DOC**  **(m g/L)**  **1 .**  **Coast Range** SO 1 -3 8.5 1.1 1.8 0.2 50.9 0.8 2.7 0.9

SO 4 - 6 5.7 1.3 3.0 0.5 19.0 2.7 3.8 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 0.6

SO 4 - 6 8.0 2.8 5.2 0.9 33.0 4.0 3.0 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 0.4

SO 4 - 6 4.0 1.1 3.0 0.5 16.5 1.2 1.1 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 0.6

SO 4 - 6 6.9 1.7 3.5 0.6 31.0 0.9 2.9 SO 7 -9 - - - - - - - **10 .**  **Columbia Plateau**  SO 1 -3 31.2 12.2 18.8 2.8 113.0 7.8 24.0 1.4

SO 4 - 6 13.0 4.9 7.0 1.7 54.0 2.6 6.1 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 1.2

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

SO 4 - 6 21.9 5.9 9.4 1.9 65.3 4.4 7.9 SO 7 -9 41.8 13.0 19.7 3.3 138.5 18.8 38.0 **78 .**  **Klam ath**  **Mountains** SO 1 -3 17.4 8.2 5.0 0.4 - 2.5 4.4 0.6

SO 4 - 6 8.8 3.9 4.6 0.7 39.0 2.8 3.4 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 1.3

SO 4 - 6 44.0 9.4 4.1 0.8 137.8 2.5 10.2 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 1 4, 2016

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