Table 7.12 — Dafa for selected measures of water quality from undisturbed forest and range 

 watersheds in ttie United States, by division, province, and section 





Measures of quality 





Total dissolved solids 



Dissolved oxygen 



Water 



temperature 



Suspended sediment 



Division, province, and section 





(mg/1)' 





(% saturation)^ 



(degrees centigrade) 





(mg/1)3 







Percentile" 



Percentile 



Percentile 



Percentile 





15 



50 



85 



15 



50 



85 



15 



50 



85 



15 



50 



85 



1300 Subarctic 



























M1310 Alaska Range 



50 



90 



120 



90 



95 



100 







6.0 



13.0 



1 



3 

 (100) 



40 

 (500) 



1320 Yul<on Forest 



43 



6?, 



80 



95 



98 



100 







3.8 



7.5 



10 



20 



40« 



2100 Warm Continental 



























2110 Laurentian Mixed Forest 



























2111 Spruce-fir 



62 



91 



120 



79 



90 



104 







10.0 



15.5 







4 



14 



2112 Northern Hardwoods-Fir 



68 



104 



132 



77 



87 



98 







8.0 



20.0 



2 



4 



10 



2113 Northern Hardwoods 



25 



29 



35 



89 



97 



105 







8.0 



17.0 



1 



3 



8 



2114 Northern Hardwoods-Spruce 



16 



20 



25 



86 



92 



100 







4.0 



19.0 



1 



2 



5 



M2110 Columbia Forest 



























M2111 Douglas-fir Forest 



70 



100 



150 



85 



91 



97 



3.0 



4.0 



9.0 



10 



40 



60 



M2112 Cedar-Hemlock- 



























Douglas-fir 



48 



52 



54 



85 



95 



105 







6.0 



11.0 



2 



5 



10 



2200 Hot Continental 



























2210 Eastern Deciduous Forest 



























2211 Mixed Mesophytic 



14 



16 



18 



87 



93 



100 



4.5 



10.0 



16.0 



2 



4 



17 



2212 Beech-Maple 



206 



368 



556 



80 



94 



100 



4.0 



10.5 



23.0 



2 



24 



95 



2213 Maple-Basswood + 



























Oak Savanna 



239 



294 



313 



86 



96 



110 



1.0 



9.0 



17.0 



14 



48 



734 



2214 Appalachia Oak 



22 



25 



29 



89 



97 



105 



2.0 



6.0 



15.0 









2215 Oak Hickory 



44 



62 



156 



84 



94 



105 



7.0 



15.0 



23.0 



2 



8 



40 



2300 Subtropical 



























2310 Outer Coastal Plain Forest 



























2311 Beech-Sweetgum- 



























Magnolia-Pine-Oak 



16 



23 



53 



73 



83 



90 



10.0 



18.0 



24.0 



4 



19 





2312 Southern Flood Plain 



16 



23 



53 



73 



83 



90 



10.0 



18.0 



24.0 



4 



19 



93 



2320 Southeastern Mixed Forest 



15 



22 



34 



91 



98 



105 



9.0 



16.0 



23.0 



3 



7 



20 



2400 Marine 



























2410 Willamette-Puget Forest 



46 



62 



75 



70 



80 



90 



2.0 



12.0 



18.0 



5 



10 



20 



M2410 Pacific Forest 



15 



40 



75 



95 



98 



100 



1.0 



5.0 



9.0 



1 

 (20) 



3 

 (80) 



40 

 (400) 



M2411 Sitka-Spruce-Cedar- 



























Hemlock 



34 



48 



65 



92 



95 



98 



4.0 



8.0 



11.0 



1 



2 



8 



M2412 Redwood Forest 



52 



87 



124 



95 



98 



105 



7.0 



12.1 



18.0 



3 



26 



118 



M2413 Cedar-Hemlock- 



























Douglas-fir 



25 



50 



90 



85 



90 



95 



3.0 



9.0 



16.0 



4 



8 



12 



M2414 California Mixed Evergreen 



50 



120 



150 



93 



97 



99 



8.0 



14.5 



21.2 



6 



45 



175 



M2415 Silver FIr-Douglas-fir 



23 



46 



68 



85 



90 



94 



1.4 



6.2 



10.9 



2 



5 



10 



2500 Prairie 



























2510 Prairie Parkland 



























2511 Oak-Hickory-Bluestem 



235 



314 



370 



76 



94 



128 







13.0 



22.0 



17 



55 



214 



2512 Oak + Bluestem 



51 



55 



58 



— 



— 



— 



11.0 



20.0 



25.0 



— 



— 



— 



2520 Prairie Brushland 



























2521 Mesquite-Buffalo Grass 



240 



270 



280 



83 



94 



100 



12.0 



19.0 



26.0 



2 



8 



80 



2522 Junlper-Oak-Mesquite 



244 



278 



290 



83 



94 



100 



11.5 



19.0 



25.5 



2 



8 



80 



2523 Mesquite-Acacia 



250 



280 



295 



82 



92 



100 



12.0 



19.0 



26.0 



2 



8 



80 



2530 Tall-grass Prairie 



























2531 Bluestem 



352 



868 



1060 



70 



86 



100 







9.0 



19.5 



24 



80 



199 



2532 Wheatgrass-Bluestem- 



























Needlegrass 



149 



155 



161 



78 



83 



90 



4.5 



9.5 



20.0 



448 



508 



650 



2533 Bluestem-Grama 



72 



104 



133 



54 



81 



100 



5.0 



13.0 



23.0 



— 



— 



— 



See footnotes at end of table. 



303 



