Gold Creek. The two sites on Gold Creek had very similar values for most metrics and 

 were virtually indistinguishable in terms of diatom species composition. Both sites had pollution 

 index values that indicate minor organic enricliment and both supported a few abnormal diatom 

 cells. Although the sedimentation index at both sites did not exceed the threshold for minor 

 impairment, both sites supported large numbers of Planothidiiim spp., which is adapted to living 

 attached to sand grains. 



Jerry Creek. The one sample from Jerry Creek was dominated by Fragilaria 

 vaucheriae, an "increaser" that is found worldwide in disturbed freshwater habitats. The other 

 major species at this site are common pollution-sensitive species and indicate gentle gradients 

 and slow current velocities. The pollution index at this site approached but did not exceed the 

 criterion for minor impairment. A few teratological cells were found here. 



Pine Creek. Like Gold Creek, the two sites on Pine Creek had similar diatom floras and 

 similar metric values. Both sites had sedimentation index values that barely exceed the threshold 

 for minor impairment. Pollution index values approached, but did not exceed, the threshold for 

 minor impairment. Major diatom species indicate eutrophic waters (enriched with inorganic 

 nutrients) and gentle gradients at both sites. A few abnormal cells were also recorded here. 



Fox Creek. Diatom metrics indicate minor impainnent from organic loading and 

 sedimentation at both sites on Fox Creek. Major diatom species indicate human disturbance with 

 elevated nutrients at both sites. Planothidium species, which are adapted to living attached to 

 sand grains, was a major taxon at site 01 . A few deformed cells were counted at site 02 and the 

 two sites shared 54% of their diatom floras. 



Fishtrap Creek. The pollution index indicated minor impairment from organic loading 

 at site 01 and borderline impairment at site 02. The siltation index indicated minor impairment 

 from sedimentation at site 02. Major diatom species indicate gentle gradients at both sites and 

 human disturbance with elevated nutrients, especially at site 01 . A few abnormal cells were 

 counted at site 01 . The diatom floras at the two sites were virtually indistinguishable. 



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