Database fields in category Site characteristics

	Distribution maps
Label	Lower 48	Alaska	Hawaii	Statistics	Description
`SETTING`					Physiographic setting of sample site
`ACCHANWID`					Width of active stream channel at collection site
`WATERDEP`					Depth of water at collection site
`WATCOL`					Color of water at collection site
`FLOWSTAGE`					Flow stage of stream at time of sample collection
`FLOWRATE`					Description of flow rate of stream at time of sample collection
`STRBED`					Material in stream bed at sample collection site
`CONTAMSOU`					Observed sources of anthropogenic contamination near sample site
`CONTAMPOT`					Likelihood that the sample is contaminated
`CONTAMDEGR`					Degree to which sample is likely to be contaminated
`VEG`					Description of vegetation around sample site
`PH`					pH of water at sample site