Potomac NAWQA:
Sampling approaches and sampling stations

fix1 - Integrator Surface-Water Site: Water quality and ecology (multiple samples)
fix2 - Indicator Surface-Water Site: Water quality and ecology (multiple samples)
bst - Streambed Sediment and Aquatic Biological Tissues
bed - Streambed Sediment only
tis - Aquatic Biological Tissues only
synh - Major Tributaries Synoptic: Water quality (one sample)
syn1 - Great Valley Carbonate Surface-Water Synoptic: Water quality and ecology (one sample)
syn2 - Piedmont Surface-Water Synoptic: Water quality and ecology (one sample)
syn3 - Triassic Lowlands Surface-Water Synoptic: Water quality and ecology (one sample)
syn4 - Valley and Ridge Surface-Water Synoptic: Water quality and ecology (one sample)

To search on a specific station identifier, use your browser's search mode.
USGS station id Station name fix1 fix2 bst synh syn1 syn2 syn3 syn4
01654000 Accotink Creek near Annandale, VA   fix2 bst     syn2    
01638994 Alloway Creek near Harney, MD             syn3  
01651010 Anacostia River near Bladensburg, MD     bed          
01619500 Antietam Creek near Sharpsburg, MD       synh        
01660350 Aquia Creek near Garrisonville, VA           syn2    
01639462 Bear Brook near Frizzellburg, MD           syn2    
01643820 Beaverdam Creek near Unison, VA           syn2    
01643300 Bennett Creek near Hyattstown, MD           syn2    
01639400 Big Pipe Creek at Bachman Mills, MD           syn2    
01620995 Black Run at Rawley Springs, VA               syn4
01621400 Blacks Run at Harrisonburg, VA         syn1      
01643615 Broad Run at Elmar, MD             syn3  
01637950 Broad Run near Jefferson, MD           syn2    
01635045 Buffalo Marsh Run near Middletown, VA         syn1      
01656725 Bull Run near Catharpin, VA             syn3  
01657000 Bull Run near Manassas, VA     bst          
01636460 Bullskin Run above Kabletown, WV         syn1      
01646350 Cabin John Creek at Rockville, MD           syn2    
01611500 Cacapon River near Great Cacapon, WV     bst synh        
01642200 Carroll Creek at Frederick, MD         syn1      
01638050 Catoctin Creek at Olive, MD       synh        
01638480 Catoctin Creek at Taylorstown, VA   fix2 bst synh   syn2    
01614110 Conococheague Creek trib. near Fayetteville, PA         syn1      
01614500 Conococheague Creek at Fairview, MD fix1   bst synh        
01613082 Cove Run at Warfordsburg, PA               syn4
01643705 Cromwell Run near Atoka, VA           syn2    
01656870 Cub Run at Old Lee Rd near Chantilly, VA             syn3  
01613060 Cummings Run near Needmore, PA               syn4
01645725 Difficult Run near Vienna, VA           syn2    
01610990 Dillons Run at Capon Bridge, WV               syn4
01605800 Dry Run near Cherry Grove, WV               syn4
01614130 Falling Spring at Chambersburg, PA         syn1      
01656772 Flat Branch at Manassas Park, VA             syn3  
01639380 Flat Run at Emmitsburg, MD             syn3  
01656920 Flatlick Branch at Braddock Rd near Chantilly, VA             syn3  
01624670 Folly Mills Creek near Staunton, VA         syn1      
01652370 Fourmile Run at Arlington, VA           syn2    
01641930 Glade Creek near Walkersville, MD         syn1      
01644000 Goose Creek near Leesburg, VA     bst synh        
01656102 Goslin Run near Aden, VA             syn3  
01644481 Great Seneca Creek at Goshen, MD           syn2    
01619200 Hamilton Creek at Hagerstown, MD         syn1      
01636215 Happy Creek at Crosby Stadium at Front Royal, VA         syn1      
01614010 Harlan Run near Spring Mills, WV         syn1      
01632750 Holmans Run at Quicksburg, VA         syn1      
01605950 Jordan Run near Hopeville, WV               syn4
01656655 Kettle Run near Nokesville, VA             syn3  
01610185 Kimsey Run near Lost River, WV               syn4
01624490 Lewis Creek at Staunton, VA         syn1      
01613510 Little Cove Creek near Sylvan, PA               syn4
01640000 Little Pipe Creek at Avondale, MD           syn2    
01638920 Littles Run near Gettysburg, PA             syn3  
01611205 Maple Run near Slanesville, WV               syn4
01617800 Marsh Run at Grimes, MD     bst   syn1      
01619140 Marsh Run at Reid, MD         syn1      
01625000 Middle River near Grottoes, VA     bst synh        
01604400 Mill Creek at Burlington, WV               syn4
01629550 Mill Creek near Hamburg, VA         syn1      
01608300 Mill Run near Romney, WV               syn4
01639000 Monocacy River at Bridgeport, MD   fix2 bst synh        
01643020 Monocacy River at Reich's Ford Bridge near Frederick, MD (Q@01643000*) fix1   bst synh        
01620850 Mossy Creek near Spring Creek, VA         syn1      
01621050 Muddy Creek at Mount  Clinton, Va. **   fix2 bst   syn1      
01608150 Mudlick Run near Moorefield, WV               syn4
01638740 Mummasburg Run near Gettysburg, PA             syn3  
01659000 North Branch Chopawamsic Creek near Joplin, VA           syn2    
01600000 North Branch Potomac River at Pinto, MD     bed synh        
01595000 North Branch Potomac River at Steyer, MD     bed          
01603000 North Branch Potomac River near Cumberland, MD fix1   bst synh        
01647720 North Branch Rock Creek near Norbeck, MD           syn2    
01643800 North Fork Goose Creek near Lincoln, VA           syn2    
01633000 North Fork Shenandoah River at Mt Jackson, VA       synh        
01634000 Nouth Fork Shenandoah River near Strasburg, VA     bst synh        
01606720 North Mill Creek near Petersburg, WV               syn4
01622000 North River at Burketown, VA       synh        
01620500 North River near Stokesville, VA               syn4
01616500 Opequon Creek near Martinsburg, WV     bst synh        
01634100 Paddy Run near Zepp, VA               syn4
01636305 Page Brook at Boyce, VA         syn1      
01649200 Paint Branch at College Park, MD           syn2    
01601470 Piney Mountain Creek at LaVale, MD               syn4
01624950 Polecat Draft near Piedmont, VA         syn1      
01626950 Porterfield Run near Crimora, VA         syn1      
01652589 Potomac River below Oxon Creek at Washington, DC     bed          
01646580 Potomac River at Chain Bridge at Washington, DC (Q@01646500*) fix1     synh        
01618000 Potomac River at Shepherdstown, WV     bst          
01652588 Potomac River near Alexandria, VA     tis          
01618200 Rattlesnake Run near Shepherdstown, WV         syn1      
01638450 Richard Creek near Waterford, VA           syn2    
01614525 Rockdale Run at Fairview, MD         syn1      
01640155 Sams Creek near Union Bridge, MD           syn2    
01596500 Savage River near Barton, MD     bed          
01605900 Seneca Creek near Onega, WV               syn4
01636500 Shenandoah River at Millville, WV fix1   bst synh        
01631700 Shoemaker River near Faulks Run, VA               syn4
01639440 Silver Run near Silver Run, MD           syn2    
01650900 Sligo Creek at Takoma Park, MD           syn2    
01606500 South Branch Potomac River near Petersburg, WV       synh        
01608500 South Branch Potomac River near Springfield, WV fix1   bst synh        
01642425 South Fork Linganore Creek near Linganore, MD           syn2    
01606600 South Fork Lunice Creek near Maysville, WV               syn4
01658500 South Fork Quantico Creek near Independent Hill, VA           syn2    
01631000 South Fork Shenandoah River at Front Royal, VA       synh        
01629500 South Fork Shenandoah River near Luray, VA       synh        
01631020 South Fork Shenandoah River Below Cabin Run at Front Royal, VA (Q@01631000*)     bst          
01608000 South Fork South Branch Potomac River near Moorefield, WV   fix2 bst synh        
01627500 South River at Harriston, VA     bst synh        
01611120 Sperry Run at Rio, WV               syn4
01661050 St.Clement Creek near Clements, MD     bst          
01611130 Tear Coat Creek near Rio, WV               syn4
01605490 Thorn Creek near Moatstown, WV               syn4
01633730 Toms Brook at Toms Brook, VA         syn1      
01615520 Town Run at Winchester, VA         syn1      
01610250 Trout Run near Wardensville, WV               syn4
01617010 Tuscarora Creek at Martinsburg, WV         syn1      
01614350 Welsh Run at Welsh Run, PA         syn1      
01605220 West Strait Creek near Monterey, VA               syn4
01610063 White Sulfur Run near Flintstone, MD               syn4
01638895 Whites Run near Two Tavern's, PA             syn3  
01657435 Wolf Run near Clifton, VA           syn2    


* Q denotes that discharge measurements were taken at a different point on the stream than the actual sample.
Discharge from the stated Station was used. 
** Five additional surface-water sites were located within the small-scale ground-water flow-system study in the Muddy Creek watershed, near Mount Clinton, VA.