"VARIABLE"	"DESCRIPTION"	"UNITS"	"RANGE_LOW"	"RANGE_HIGH"	"LEGAL_VALUES"
"DATE_COL"	"Date of field collection"				
"FW_ECO3"	"Three climatic regions of the US used in WSA in indicator development: Eastern Highlands, West, and Plains and Lowlands"				
"MMI_PERI_EHIGH"	"Periphyton multimetric index score for Eastern Highlands"	""	0	100	""
"MMI_PERI_PLNLOW"	"Periphyton multimetric index score for Plains and Lowlands"	""	0	100	""
"MMI_PERI_WMTNS"	"Periphyton multimetric index score for West and Mountains"	""	0	100	""
"NFAMILIES_VALVE"	"Number of diatom families per valve counted"	""	0		""
"NFAMILIES_VALVE_PT"	"Score for NFAMILIES_VALVE used in MMI"	""	0	10	""
"NFAMILIES_VALVE_RES"	"Modeled residual for NFAMILIES_VALVE used in scoring"	""			""
"PERI_MMI_COND"	"Periphyton assemblage condition, based on regional MMI"	""			"Good|Fair|Poor|No Data"
"PIHMOTD_VDIA"	"Proportion of valves of diatoms that are in taxa characterized as highly motile in sediments"	""	0	1	""
"PIHMOTD_VDIA_PT"	"Score for PIHMOTD_VDIA used in MMI"	""	0	10	""
"PIHMOTD_VDIA_RES"	"Modeled residual for PIHMOTD_VDIA used in scoring"	""			""
"PIPLNK_VDIA"	"Proportion of diatom valves as planktonic taxa"	""	0	1	""
"PIPLNK_VDIA_PT"	"Score for PIPLNK_VDIA used in MMI"	""	0	10	""
"PIPLNK_VDIA_RES"	"Modeled residual for PIPLNK_VDIA used in scoring"	""			""
"PISTLK_VDIA"	"Proportion of valves of diatoms that are in taxa characterized as highly stalked"	""	0	1	""
"PISTLK_VDIA_PT"	"Score for PISTLK_VDIA used in MMI"	""	0	10	""
"PISTLK_VDIA_RES"	"Modeled residual for PISTLK_VDIA used in scoring"	""			""
"PT_DISTMMISENS"	"Proportion of diatom taxa characteristically found at minimally disturbed sites in the Western EMAP project"	""	0	1	""
"PT_DISTMMISENS_PT"	"Score for PT_DISTOTMMISENS used in MMI"	""	0	10	""
"PT_DISTMMISENS_RES"	"Modeled residual for PT_DISTOTMMISENS used in scoring"	""			""
"PTSENS_ACHNANTHACEAE"	"Proportion of taxa characteristically found at minimally disturbed sites in the Western EMAP project in the diatom family Achnanthaceae"	""	0	1	""
"PTSENS_ACHNANTHACEAE_PT"	"Score for PTSENS_ACHNANTHACEAE used in MMI"	""	0	10	""
"PTSENS_ACHNANTHACEAE_RES"	"Modeled residual for PTSENS_ACHNANTHACEAE used in scoring"	""			""
"PTSENS_DIATOMACEAE"	"Proportion of taxa characteristically found at minimally disturbed sites in the Western EMAP project in the diatom family Diatomaceae"	""	0	1	""
"PTSENS_DIATOMACEAE_PT"	"Score for PTSENS_DIATOMACEAE used in MMI"	""	0	10	""
"PTSENS_DIATOMACEAE_RES"	"Modeled residual for PTSENS_DIATOMACEAE  used in scoring"	""			""
"PTSENS_NAVICULACEAE"	"Proportion of taxa characteristically found at minimally disturbed sites in the Western EMAP project in the diatom family Naviculaceae"	""	0	1	""
"PTSENS_NAVICULACEAE_PT"	"Score for PTSENS_NAVICULACEAE used in MMI"	""	0	10	""
"PTSENS_NAVICULACEAE_RES"	"Modeled residual for PTSENS_NAVICULACEAE used in scoring"	""			""
"PTTOL_NAVICULACEAE"	"Proportion of taxa characteristically found at highly disturbed sites in the Western EMAP project in the diatom family Naviculaceae"	""	0	1	""
"PTTOL_NAVICULACEAE_PT"	"Score for PTTOL_NAVICULACEAE used in MMI"	""	0	10	""
"PTTOL_NAVICULACEAE_RES"	"Modeled residual for PTTOL_NAVICULACEAE used in scoring"	""			""
"PTTOL_NITZSCHIACEAE"	"Proportion of taxa characteristically found at highly disturbed sites in the Western EMAP project in the diatom family Nitzschiaceae"	""	0	1	""
"PTTOL_NITZSCHIACEAE_PT"	"Score for PTTOL_NITZSCHIACEAE used in MMI"	""	0	10	""
"PTTOL_NITZSCHIACEAE_RES"	"Modeled residual for PTTOL_NITZSCHIACEAE used in scoring"	""			""
"S_N_DIAT"	"Number of NRSA diatom taxa per valve counted"	""	0		""
"SAMPLE_TYPE"	"Sample type"				
"SITE_ID"	"Site identification code"				
"UID"	"Unique site visit ID"				
"VISIT_NO"	"Visit number for that year"				
