Watershed county Stream name DEQStationNumber Dec_Long Dec_Lat Location Date Multimetric Index Score Ecological Condition
Potomac                    
Arlington
Gulf Branch 1AGUL-P1-SOS -77.1137 38.9252 50m downstream from GW Pkwy
08/27/01 5 Unacceptable
08/29/01 5 Unacceptable
06/23/06 3 Unacceptable
07/24/06 4 Unacceptable
Spout Run 1ASPU-P1-SOS -77.0835 38.9013 next to drainage pipe, off Spout Run Pkwy, under GW
09/06/01 5 Unacceptable
07/13/06 2 Unacceptable
07/31/06 3 Unacceptable
Spout Run 1ASPU-P2-SOS -77.0847 38.9003 200 m upstream from P1
09/07/01 3 Unacceptable
07/17/06 4 Unacceptable
08/01/06 4 Unacceptable
Spout Run 1ASPU-P3-SOS -77.086 38.8983 below Spout Run, ~50 m upstream of 2nd drainage pipe
09/07/01 3 Unacceptable
07/17/06 2 Unacceptable
08/02/06 3 Unacceptable
Donaldson 1ADON-P1-SOS -77.1078 38.9198 10m upstream from mouth
08/29/01 10 Acceptable
07/10/06 5 Unacceptable
07/26/06 4 Unacceptable
Gulf Branch 1AGUL-P2-SOS -77.1142 38.925 directly under bridge
07/03/06 5 Unacceptable
07/25/06 6 Unacceptable
Gulf Branch 1AGUL-P3-SOS -77.1147 38.9245 15 m upstream from bridge
08/28/01 10 Acceptable
07/10/06 5 Unacceptable
07/25/06 6 Unacceptable
Donaldson 1ADON-P2-SOS -77.1082 38.9197 beneath GW Parkway bridge
08/27/01 10 Acceptable
07/11/06 6 Unacceptable
07/26/06 4 Unacceptable
Donaldson 1ADON-P3-SOS -77.1083 38.9195 15m upstream from GW parkway
08/27/01 4 Unacceptable
07/11/06 3 Unacceptable
07/27/06 3 Unacceptable
Fairfax
Accotink Creek 1AACO-AC10-SOS -77.2849 38.8647 Ranger Road Park upstream from foot bridge.  Park is located off Ranger Road in City of Fairfax.
04/10/01 4 Unacceptable
02/02/03 2 Unacceptable
08/24/03 7 Unacceptable
11/02/03 3 Unacceptable
04/30/04 4 Unacceptable
08/01/04 6 Unacceptable
11/30/04 4 Unacceptable
Accotink Creek 1AACO-AC2-SOS -77.22 38.8325 Across from park near I495/ .1-.2 mi south of Rt 236 & I-495 in Annandale
01/24/02 2 Unacceptable
02/26/02 2 Unacceptable
04/30/02 3 Unacceptable
04/03/03 2 Unacceptable
07/25/03 4 Unacceptable
10/30/03 8 Gray Zone (indeterminate conditions)
02/25/04 3 Unacceptable
04/22/04 4 Unacceptable
07/07/04 5 Unacceptable
10/27/04 4 Unacceptable
04/26/06 3 Unacceptable
Accotink Creek 1AACO-AC3-SOS -77.271 38.8656 Ranger Road Park
02/23/02 4 Unacceptable  
04/14/02 6 Unacceptable
07/27/02 3 Unacceptable
Accotink Creek 1AACO-ACC6-SOS -77.2282 38.8164 Due west of ballfield concession stand in Wakefield park. Intersection of 495 and Braddock Road - 620
04/08/01 4 Unacceptable
02/09/02 5 Unacceptable
04/01/02 4 Unacceptable
07/21/02 4 Unacceptable
04/28/03 3 Unacceptable
10/19/03 3 Unacceptable
02/28/04 4 Unacceptable
04/25/04 4 Unacceptable
07/11/04 6 Unacceptable
Accotink Creek 1AACO-ACC9-SOS -77.24555 38.85333 Site is located in Eakin Community Park, downstream from road, behind the children's play area.  The park is located off Prosperity Ave, between Little River Turnpike (236) and Arlington Boulevard (50).
02/15/02 3 Unacceptable
04/03/03 5 Unacceptable
07/24/03 4 Unacceptable
10/30/03 5 Unacceptable
02/24/04 4 Unacceptable
04/22/04 5 Unacceptable
07/07/04 5 Unacceptable
10/27/04 3 Unacceptable
02/01/06 4 Unacceptable
02/01/06 4 Unacceptable
04/26/06 2 Unacceptable
Big Rocky Run 1ABIR-CR4-SOS -77.407 38.8683 Rocky Run stream Valley Park, Greenbriar Development
04/20/04 6 Unacceptable
07/31/04 7 Unacceptable
11/06/04 8 Gray Zone (indeterminate conditions)
Big Rocky Run 1ABIR-CR5-SOS -77.4295 38.8556 Site is located in Eleanor C Lawrence Park, by Walney Pond downstream of metal bridge.  Park is located off Walney Road, near 66 and Rte 28
04/08/01 8 Gray Zone (indeterminate conditions)
02/10/02 5 Unacceptable
04/13/02 3 Unacceptable
02/02/03 3 Unacceptable
04/26/03 3 Unacceptable
08/31/03 7 Unacceptable
10/25/03 7 Unacceptable
02/22/04 4 Unacceptable
04/29/04 4 Unacceptable
08/01/04 7 Unacceptable
11/14/04 7 Unacceptable
12/03/06 7 Unacceptable
Cinnamon Creek 1ACIN-DR9-SOS -77.2794 38.9475 40 yards West of wooden bridge, within 20 yards of work by Judy O'Kay.
01/12/02 6 Unacceptable
Clark's Branch 1ACLA-PB1-SOS -77.25861 39.03 Site is located in Riverbend Park, near confluence with Potomac River.  Riverbend Park is off Jeffrey Road, north of Great Falls Park.
08/30/01 8 Gray Zone (indeterminate conditions)
08/29/03 5 Unacceptable
03/27/04 4 Unacceptable
11/22/04 4 Unacceptable
08/18/05 8 Gray Zone (indeterminate conditions)
Colvin Run 1ACOV-DR13-SOS -77.30972 38.96556 Under bridge on Hunter Mill Road , down from Lake Fairfax
04/29/06 9 Acceptable
07/22/06 10 Acceptable
Colvin Run 1ACOV-DR28-SOS -77.3334 38.957 Site is located downstream from where Wiehle Crosses over Colvin Run.  North of Chestnut Grove Homes complex.  100’ downstream from Bridge 16, behind Bentana Park East Town houses
04/14/01 8 Gray Zone (indeterminate conditions)
01/12/02 8 Gray Zone (indeterminate conditions)
07/21/02 10 Acceptable
07/12/03 6 Unacceptable
11/26/03 7 Unacceptable
02/07/04 9 Acceptable
04/25/04 6 Unacceptable
07/24/04 8 Gray Zone (indeterminate conditions)
11/20/04 7 Unacceptable
11/05/05 10 Acceptable
11/18/06 10 Acceptable
Colvin Run (unnamed tributary) 1ACOL*DR20-SOS
02/15/02 4 Unacceptable
03/27/02 3 Unacceptable
07/28/02 3 Unacceptable
11/28/05 3 Unacceptable
08/01/06 4 Unacceptable
10/19/06 3 Unacceptable
02/20/07 4 Unacceptable
Colvin Run (unnamed tributary) 1ACOV-DR27-SOS -77.32361 38.96194 Tributary downstream of Lake Anne behind Tall Oaks assisted living
04/09/01 3 Unacceptable
02/25/02 6 Unacceptable
04/11/02 5 Unacceptable
02/12/03 5 Unacceptable
05/01/03 4 Unacceptable
08/27/03 4 Unacceptable
11/05/03 4 Unacceptable
02/04/04 5 Unacceptable
02/04/04 5 Unacceptable
04/22/04 4 Unacceptable
08/19/04 2 Unacceptable
10/26/04 5 Unacceptable
11/25/05 6 Unacceptable
02/22/06 2 Unacceptable
08/30/06 3 Unacceptable
11/09/06 5 Unacceptable
01/25/07 4 Unacceptable
Cub Run 1ACUB-CR1-SOS -77.46528 38.835 where Cub Run crosses Route 29 (Lee Highway) in Centreville. Taking stream valley trail north/upstream from Rt. 29, site is at first place trail crosses stream
04/28/01 7 Unacceptable
02/23/02 6 Unacceptable
04/06/02 8 Gray Zone (indeterminate conditions)
02/03/03 9 Acceptable
10/18/03 6 Unacceptable
01/03/04 7 Unacceptable
03/21/04 7 Unacceptable
07/24/04 6 Unacceptable
11/11/06 8 Gray Zone (indeterminate conditions)
Cub Run 1ACUB-CR3-SOS -77.4697 38.8828 approximately 50 '  North of Old Lee Bridge Road.  This area is north from where Old Lee Bridge intersects Braddock Road.
04/22/01 7 Unacceptable
04/06/02 9 Acceptable
07/21/02 8 Gray Zone (indeterminate conditions)
Cub Run 1ACUB-CR6-SOS -77.4699 38.8011 Cub Run, adjacent to Bull Run/Occoquan Trail, under power lines
04/22/01 9 Acceptable
02/09/02 7 Unacceptable
04/27/02 5 Unacceptable
02/02/03 9 Acceptable
04/27/03 6 Unacceptable
08/02/03 8 Gray Zone (indeterminate conditions)
11/10/03 6 Unacceptable
02/14/04 8 Gray Zone (indeterminate conditions)
04/18/04 7 Unacceptable
08/01/04 11 Acceptable
12/05/04 11 Acceptable
11/05/05 9 Acceptable
04/30/06 9 Acceptable
Difficult Run 1ADIF-DR1-SOS -77.31889 38.90333 Vale Rd. Bridge, North edge, several feet downstream from edge of bridge.
02/03/02 3 Unacceptable
04/25/02 6 Unacceptable
07/12/02 6 Unacceptable
Difficult Run 1ADIF-DR25-SOS -77.33111 38.88556 Site is located in Difficult Run Stream Valley Park, across from Blenheim, downstream from DR 26.  Park is located parallel to Miller Heights Road.
04/02/01 7 Unacceptable
Difficult Run 1ADIF-DR26-SOS -77.33167 38.88528 Site is located behind Gardener's home, at end of Lapham Dr.
04/19/01 6 Unacceptable
07/17/03 3 Unacceptable
11/01/03 6 Unacceptable
Holmes Run 1AHOR-CAM1-SOS -77.21833 38.87639 100yrds north of Lee Highway, 50yrds east of Shreve Rd
04/29/01 5 Unacceptable
02/23/02 6 Unacceptable
Johnny Moore Creek 1AJOH-JMC1-SOS -77.4095 38.7963 Compton Rd bridge, first riffle downstream
03/31/01 7 Unacceptable
01/06/02 7 Unacceptable
07/07/02 6 Unacceptable
08/09/03 6 Unacceptable
11/02/03 6 Unacceptable
02/13/04 5 Unacceptable
04/18/04 4 Unacceptable
08/01/04 5 Unacceptable
11/29/04 7 Unacceptable
Johnny Moore Creek 1AJOH-JMC2-SOS -77.4121 38.7816 End of Balmoral Fore, above confluence with Bull Run, deep woods by old dam
04/07/01 6 Unacceptable
07/07/02 8 Gray Zone (indeterminate conditions)
08/16/03 2 Unacceptable
11/01/03 6 Unacceptable
02/13/04 6 Unacceptable
04/18/04 3 Unacceptable
08/01/04 5 Unacceptable
11/14/04 4 Unacceptable
Johnny Moore Creek 1AJOH-JMC3-SOS -77.40667 38.80222 Mainstem - Behind Martin House
04/30/02 10 Acceptable
Johnny Moore Creek 1AJOH-JMC4-SOS -77.40722 38.8025 Site is located on Martin's private land, downstream from where tributary crosses Briarcroft St in Clifton.  The tributary is unmarked on maps.
04/29/01 10 Acceptable
08/26/01 11 Acceptable
01/27/02 8 Gray Zone (indeterminate conditions)
08/31/03 9 Acceptable
Little Difficult Run 1ALID-DR22-SOS -77.375 38.90389 West on Southfield Dr, Left on Searsmont Pl, follow path 1/4 mile to creek
02/25/02 8 Gray Zone (indeterminate conditions)
04/30/02 8 Gray Zone (indeterminate conditions)
11/15/06
Little Difficult Run 1ALID-DR23-SOS -77.23902184 38.76989647 Reston/Oakton border; p6, G10, ADC map
04/30/01 4 Unacceptable
01/30/02 5 Unacceptable
04/26/02 4 Unacceptable
04/24/03 4 Unacceptable
08/21/03 6 Unacceptable
11/29/03 5 Unacceptable
02/27/04 6 Unacceptable
04/28/04 5 Unacceptable
08/12/04 5 Unacceptable
11/30/04 6 Unacceptable
11/30/05 6 Unacceptable
Little Pimmit Run 1ALIO-PIM1-SOS -77.36722 38.97389 Site is located just south of where Claiborne Drive intersection with Kirby Road in McLean.
04/27/01 5 Unacceptable
08/30/01 6 Unacceptable
Long Branch 1ALOE-AC4-SOS -77.2430556 38.87111 2933 Fairhill Road
01/24/02 5 Unacceptable
04/23/02 4 Unacceptable
Turkey Run 1ALOE-ACC8-SOS -77.2405 38.8252 0.2 upstream of Wakefield Chapel parking lot
04/03/03 2 Unacceptable
10/30/03 5 Unacceptable
02/24/04 6 Unacceptable
04/22/04 4 Unacceptable
07/07/04 6 Unacceptable
10/27/04 5 Unacceptable
Long Branch 1ALOE-AC7-SOS -77.2363889 38.81306 Canterbury Woods Park, Braddock and Wakefield Chapel Roads
04/01/01 3 Unacceptable
02/10/02 1 Unacceptable
04/01/02 3 Unacceptable
07/21/02 6 Unacceptable
04/28/03 4 Unacceptable
10/21/03 4 Unacceptable
02/29/04 5 Unacceptable
Old Courthouse Spring Branch 1AOCS-DR5-SOS -77.2508 38.9293 Tyson's Corner, off Rt. 7/Ashgrove House Rd./Northern Neck Weston Townhomes
01/08/02 4 Unacceptable
04/30/02 4 Unacceptable
02/13/03 4 Unacceptable
08/13/03 4 Unacceptable
11/25/03 4 Unacceptable
04/21/04 4 Unacceptable
Pimmit Run 1APIM-PIM2-SOS -77.14361 38.93556 Site is located on Main's private land, in stream valley behind 1331 Merchant Lane.  Merchant Lane is near intersection of Chainbridge Road (123) and Kirby Road.
04/12/01 7 Unacceptable
08/25/01 7 Unacceptable
01/29/02 4 Unacceptable
01/29/02 3 Unacceptable
04/21/02 6 Unacceptable
04/30/02 5 Unacceptable
02/09/03 7 Unacceptable
05/03/03 6 Unacceptable
08/22/03 6 Unacceptable
11/02/03 5 Unacceptable
04/25/04 6 Unacceptable
08/25/04 5 Unacceptable
11/21/04 5 Unacceptable
08/29/05 5 Unacceptable
11/19/05 5 Unacceptable
04/30/06 5 Unacceptable
07/27/06 6 Unacceptable
07/28/06 7 Unacceptable
Pimmit Run 1APIM-PIM3-SOS -77.1794 38.9141 Site is located next to Kirby Park, south of Lemmon Road and north of intersection of Westmoreland Street and Kirby.  McLean
04/14/01 4 Unacceptable
04/19/03 4 Unacceptable
07/27/03 6 Unacceptable
01/17/04 6 Unacceptable
05/13/04 4 Unacceptable
08/19/04 7 Unacceptable
11/01/04 6 Unacceptable
08/28/05 6 Unacceptable
Piney Branch 1APIY-DR10-SOS 77.29778 38.93139 Difficult Run, ADC Map#7  B9.
01/21/06 7 Unacceptable
Piney Branch 1ACOL-D20-SOS -77.22777619 38.8166468 Located downstream from Lake Anne, at bridge 17 and Reston Unitarian Church
02/08/03 5 Unacceptable
05/04/03 3 Unacceptable
07/20/03 5 Unacceptable
01/31/04 8 Gray Zone (indeterminate conditions)
04/25/04 6 Unacceptable
07/11/04 5 Unacceptable
11/07/04 5 Unacceptable
02/13/05 3 Unacceptable
05/01/05 3 Unacceptable
Pohick Creek 1APOH-POH6-SOS -77.24 38.76667 Pohick Creek Watershed Site #6, Gillings Rd@ intersection with Kentford Dr
07/22/01 5 Unacceptable
Sandy Run 1ASAD-SOS -77.2905556 38.73056 TRIB - Fairfax Station, VA 22039
04/22/03 8 Gray Zone (indeterminate conditions)
Scott's Run 1ASCO-SCOT1-SOS -77.20528 38.95944 Scott's Run Nature Preserve, downstream of weat parking lot area
08/22/01 5 Unacceptable
03/26/04 3 Unacceptable
11/19/04 3 Unacceptable
Snakeden Branch 1ASNA-DR11-SOS -77.3225 38.93361 Estimated 2.5 miles downstream from Lake Audobon Dam.
07/25/03 4 Unacceptable
05/01/06 4 Unacceptable
08/23/06 2 Unacceptable
Snakeden Branch 1ASNA-DR15-SOS -77.33472 38.92861 Just before Snakeden empties into L. Audubon.
01/30/06 3 Unacceptable
Snakeden Branch 1ASNA-DR29-SOS -77.35889 38.93667 Headwaters behind Hunter Woods Plaza, where path makes T (flagged).
02/13/02 4 Unacceptable
04/30/02 4 Unacceptable
03/04/03 2 Unacceptable
04/29/03 4 Unacceptable
08/27/03 4 Unacceptable
02/07/06 6 Unacceptable
02/07/06 6 Unacceptable
01/12/07 5 Unacceptable
Snakeden Branch 1ASNA-DR3-SOS -77.3231 38.9338 Behind Barton Hill Road. Park at Twin Branches Road.  Take steep path down, labled Twin branches nature trail.  (Twin Branches Road, bridge 44)
04/26/01 6 Unacceptable
03/29/02 3 Unacceptable
01/10/03 3 Unacceptable
04/15/03 0 Unacceptable
07/07/03 5 Unacceptable
11/10/03 5 Unacceptable
02/11/04 4 Unacceptable
04/21/04 5 Unacceptable
07/15/04 3 Unacceptable
10/14/04 3 Unacceptable
01/25/05 3 Unacceptable
11/18/05 4 Unacceptable
10/30/06 4 Unacceptable
01/11/07 4 Unacceptable
Snakeden Branch 1ASNA-DR30-SOS -77.3397 38.9289 Behind Spyglass Cove Lane, just upstream of Stuarts Bridge, Lake Audubon
03/19/01 5 Unacceptable
01/22/02 5 Unacceptable
05/07/02 3 Unacceptable
03/04/03 5 Unacceptable
05/02/03 4 Unacceptable
07/20/03 3 Unacceptable
12/01/03 3 Unacceptable
02/24/04 4 Unacceptable
04/27/04 3 Unacceptable
08/24/04 4 Unacceptable
11/29/04 4 Unacceptable
04/27/05 4 Unacceptable
11/15/05 3 Unacceptable
01/30/06 3 Unacceptable
03/22/06 3 Unacceptable
08/23/06 2 Unacceptable
11/30/06 4 Unacceptable
02/28/07 6 Unacceptable
Sugarland Run 1ASUG-SLR1-SOS -77.368333 38.97583 Runnymede Park, Herndan at Utility Crossing
01/17/02 5 Unacceptable
03/15/02 4 Unacceptable
07/23/02 4 Unacceptable
Sugarland Run 1ASUG-SLR2-SOS -77.3713889 38.9592 Site is located in Reston, near intersection of Fairfax County Parkway and Sunset Hills, downstream from Washington Old Dominion  trail
07/10/01 7 Unacceptable
01/06/03 5 Unacceptable
03/24/03 8 Gray Zone (indeterminate conditions)
08/11/03 5 Unacceptable
11/25/03 3 Unacceptable
01/12/04 3 Unacceptable
04/07/04 5 Unacceptable
07/09/04 4 Unacceptable
10/07/04 2 Unacceptable
04/26/05 5 Unacceptable
04/28/06 5 Unacceptable
01/24/07 5 Unacceptable
02/27/07 3 Unacceptable
Wolftrap Creek 1AWOT-DR6-SOS -77.2869 38.9593 Directly behind 9906 Chase Hill Court In Vienna VA
04/18/01 4 Unacceptable
01/13/02 5 Unacceptable
02/09/02 6 Unacceptable
04/11/02 9 Acceptable
07/28/02 6 Unacceptable
07/22/03 4 Unacceptable
08/18/03 8 Gray Zone (indeterminate conditions)
02/28/04 5 Unacceptable
04/29/04 6 Unacceptable
Mine Run 1AMNR-P1-SOS -77.2558 38.9998 5m downstream from road
08/30/01 9 Acceptable
06/20/06 9 Acceptable
07/18/06 11 Acceptable
08/03/06 7 Unacceptable
Mine Run 1AMNR-P2-SOS -77.256 39 15m upstream from road
08/31/01 7 Unacceptable
06/20/06 7 Unacceptable
07/18/06 9 Acceptable
08/03/06 8 Gray Zone (indeterminate conditions)
Mine Run 1AMNR-P3-SOS -77.2563 39 25m upstream from road
08/31/01 8 Gray Zone (indeterminate conditions)
06/20/06 9 Acceptable
07/18/06 8 Gray Zone (indeterminate conditions)
08/04/06 7 Unacceptable
Dead Run 1ADEA-P1-SOS -77.1725 38.967 15-20m upstream from mouth
09/11/01 6 Unacceptable
06/21/06 2 Unacceptable
07/19/06 5 Unacceptable
Dead Run 1ADEA-P2-SOS -77.1732 38.9663 50 m downstream
09/17/01 7 Unacceptable
06/21/06 4 Unacceptable
07/20/16 7 Unacceptable
Dead Run 1ADEA-P3-SOS -77.1737 38.9652 70m downstream of GW Pkwy bridge, below falls
09/17/01 7 Unacceptable
06/22/06 5 Unacceptable
07/20/16 6 Unacceptable
Turkey Run 1ATUY-P1-SOS -77.1567 37.966 base of Switchback trail
08/24/01 4 Unacceptable
06/22/06 6 Unacceptable
07/21/06 6 Unacceptable
Turkey Run 1ATUY-P2-SOS -77.1567 37.9648 100m downstream from GW Pkwy
08/24/01 4 Unacceptable
06/22/06 5 Unacceptable
07/21/06 8 Gray Zone (indeterminate conditions)
Turkey Run 1ATUY-P3-SOS -77.157 37.9638 50m downstream from GW Pkwy
09/04/01 7 Unacceptable
06/23/06 6 Unacceptable
07/24/06 6 Unacceptable
Turkey Cock Run 1ATUC-CAM7-SOS 0 0
04/06/01 5 Unacceptable
The Glade 1ATHG-DR17-SOS -77.3454 38.9228 Upstream of Soapstone Drive, access of paved trail, by bridge #57
04/21/01 5 Unacceptable
01/07/02 5 Unacceptable
04/07/02 5 Unacceptable
01/26/03 7 Unacceptable
04/27/03 4 Unacceptable
07/30/03 4 Unacceptable
11/01/03 4 Unacceptable
02/14/04 5 Unacceptable
04/16/04 3 Unacceptable
08/21/04 4 Unacceptable
10/17/04 5 Unacceptable
05/01/05 4 Unacceptable
07/30/06 6 Unacceptable
10/21/06 6 Unacceptable
Little Difficult Run 1ALID-DR32-SOS 0 0 Site is located on community property, near intersection of Southfield Drive and West Ox Road.  The site is off Searsmont Place, 1/4 mi on left downtrail.
04/30/01 9 Acceptable
11/13/05 10 Acceptable
Sandy Run Tributary 1ASAD-SNDY1-SOS -77.1703327 38.76588794 Garden Club,Manor House Dr., Fairfax Station, VA 22039
04/23/01 11 Acceptable
10/26/04 9 Acceptable
04/20/05 8 Gray Zone (indeterminate conditions)
03/15/06 8 Gray Zone (indeterminate conditions)
Sugarland Run Tributary 1ASUG-SLR4-SOS -77.3644 38.9788 Bridge 108 - off trail off Lake Newport Road, north of Baron Cameron Avenue
04/28/01 6 Unacceptable
08/04/01 8 Gray Zone (indeterminate conditions)
01/25/02 7 Unacceptable
05/03/02 3 Unacceptable
03/10/03 6 Unacceptable
07/23/03 6 Unacceptable
10/03/03 3 Unacceptable
01/21/04 3 Unacceptable
04/23/04 2 Unacceptable
07/06/04 8 Gray Zone (indeterminate conditions)
10/04/04 7 Unacceptable
04/25/05 8 Gray Zone (indeterminate conditions)
06/30/06 7 Unacceptable
10/24/06 7 Unacceptable
Johnny Moore Creek 1AJOH-JMCB-SOS 0 0 Upstream of sites JMC2 and JMC-C
09/02/01 9 Acceptable
Johnny Moore Creek 1AJOH-JMCC-SOS 0 0 Upstream from JMC2
09/02/01 8 Gray Zone (indeterminate conditions)
Pimmit Run 1APIM-P1-SOS -77.1867 38.9293 30 meters upstream Glebe Road Route 123 Bridge
09/05/01 9 Acceptable
07/17/06 4 Unacceptable
Pimmit Run 1APIM-P2-SOS -77.1187 38.9298 50 meters upstream Glebe Road, Route 123 Bridge
09/05/01 9 Acceptable
07/17/06 5 Unacceptable
Pimmit Run 1APIM-P3-SOS 77.119 38.9302 80 meters upstream Glebe Road, Route 123 Bridge
09/05/01 9 Acceptable
07/13/06 4 Unacceptable
07/28/06 8 Gray Zone (indeterminate conditions)
Elklick Run 1AELC-CR7-SOS -77.37773695 38.90405078 Site is located on new park authority land, across the fields for about a mile.  Area is located near intersection of Pleasant Valley Road and Bradock Road.  ADC Map 10, k5).  Site is closed to the public.
02/01/03 5 Unacceptable
08/10/03 6 Unacceptable
11/16/03 6 Unacceptable
02/22/04 5 Unacceptable
04/25/04 8 Gray Zone (indeterminate conditions)
Courthouse Spring Branch 1ACTS*-DR5-SOS -77.16042938 38.85630919 Site is located near intersection of Rt. 7 and Dulles Toll Road (267), where Ashgrove Lane crosses over the stream.  Downstream from bridge.
04/26/05 4 Unacceptable
11/13/05 5 Unacceptable
04/23/06 3 Unacceptable
Wolftrap Run 1ADIF-DR6-SOS -77.17461121 38.84644837 Site is located behind 9906 Chase Hill Court, Vienna VA
04/29/04 8 Gray Zone (indeterminate conditions)
Little Difficult Run 1ALID-DR7-SOS -77.25120528 38.92950917 Site is located in Little Difficult Run Stream Valley Park, at bridge 200 yards west of Fox Mill Rd. Park is located near intersection of Westwood Hills and Fox Mill Road. (Map 6 a13)
02/03/02 5 Unacceptable
03/16/03 5 Unacceptable
08/03/03 5 Unacceptable
11/22/03 6 Unacceptable
02/15/04 6 Unacceptable
03/28/04 6 Unacceptable
08/22/04 7 Unacceptable
01/30/05 6 Unacceptable
Snakeden Branch - Tributary 1ASNA-DR16-SOS -77.362 38.9387 South of Sunrise Valley Rd. and at far east end of Snakeden
02/22/02 4 Unacceptable
02/06/03 3 Unacceptable
04/10/03 5 Unacceptable
10/30/03 5 Unacceptable
01/12/04 4 Unacceptable
04/19/04 4 Unacceptable
07/22/04 4 Unacceptable
10/21/04 2 Unacceptable
01/12/05 2 Unacceptable
07/12/05 4 Unacceptable
01/13/06 4 Unacceptable
04/06/06 4 Unacceptable
04/06/06 4 Unacceptable
07/21/06 4 Unacceptable
07/21/06 4 Unacceptable
11/01/06 6 Unacceptable
11/01/06 6 Unacceptable
02/22/07 4 Unacceptable
Snakeden Branch 1ASNA-DR19-SOS -77.3459 38.9299 Site just before stream passes under Soapstone Drive. By USGS Gaging station
02/02/02 5 Unacceptable
04/21/02 4 Unacceptable
02/21/03 7 Unacceptable
05/02/03 4 Unacceptable
10/12/03 4 Unacceptable
02/27/04 4 Unacceptable
04/30/04 4 Unacceptable
08/13/04 4 Unacceptable
11/30/04 5 Unacceptable
11/23/05 6 Unacceptable
01/04/06 5 Unacceptable
03/24/06 5 Unacceptable
07/31/06 3 Unacceptable
02/28/07 4 Unacceptable
Paul Spring Branch 1APAU-PSB01-SOS -77.0599 38.7471 Paul Spring Pkwy just downstream (west) of Alexandria Ave.
02/12/02 3 Unacceptable
04/10/02 3 Unacceptable
07/24/02 2 Unacceptable
03/05/03 4 Unacceptable
Little Difficult Run 1ALID-DR04-SOS 0 0 in Fox Mill District Park
04/24/02 4 Unacceptable
05/05/02 6 Unacceptable
Wolftrap Stream 1ADIF-DR12-SOS 0 0 at intersection of Foxstone Drive and Ridge Lane
04/28/02 3 Unacceptable
06/21/03 0 Unacceptable
11/04/03 6 Unacceptable
Rox Stone Run 1ARXR*-FSR01-SOS 0 0
01/29/02 4 Unacceptable
Cub Run 1ACUB-CR8-SOS -77.47235 38.8753 Walk upstream from where Cub Run crosses road
03/23/03 7 Unacceptable
02/29/04 4 Unacceptable
05/22/04 5 Unacceptable
08/08/04 8 Gray Zone (indeterminate conditions)
11/20/04 6 Unacceptable
01/21/06 4 Unacceptable
Daniel's Run 1ADAN-ACC13-SOS -77.3013 38.8454 Park at end of Tedrich Rd.  Walk 2 minutes to stream, monitor downstream of bridge
04/19/03 4 Unacceptable
07/28/03 5 Unacceptable
02/21/04 4 Unacceptable
04/17/04 6 Unacceptable
10/21/04 5 Unacceptable
Big Rocky Run 1ABIR-CR09-SOS -77.40517 38.86825 First riffle downstream from Greenbriar Park (trailhead at pool)
07/13/03 5 Unacceptable
10/19/03 5 Unacceptable
02/22/04 2 Unacceptable
04/10/04 4 Unacceptable
07/13/04 5 Unacceptable
10/30/04 5 Unacceptable
02/15/06 6 Unacceptable
07/23/06 8 Gray Zone (indeterminate conditions)
07/23/06 8 Gray Zone (indeterminate conditions)
08/11/06 6 Unacceptable
Difficult Run 1ADIF-DR32-SOS 0 0 West Ox Road to Southfield Dr., left on Searsmont Drive, park on cul-de-sac.  Follow path from common area to stream
04/22/03 9 Acceptable
07/31/03 3 Unacceptable
11/04/03 3 Unacceptable
04/30/04 8 Gray Zone (indeterminate conditions)
11/07/04 4 Unacceptable
Johnny Moore Creek 1AJOH-JMC5-SOS -77.3299 38.96367442
04/27/03 4 Unacceptable
Paul Spring Branch 1APAU-LHC01-SOS -77.19206 38.7714465 Paul Spring Pkwy just downstream (west) of Alexandria Ave.
04/26/03 4 Unacceptable
07/17/03 6 Unacceptable
11/15/03 4 Unacceptable
01/24/04 4 Unacceptable
05/01/04 4 Unacceptable
Pohick Creek 1APOH-POH09-SOS -77.2094 38.1009 Just upstream from the lower Potomac Pollution Control Plant.  Stream is perpendicular to Richmond Highway.  Park at end of access street.  Walk upstream along stream to "root" steps down to stream.
05/03/03 5 Unacceptable
08/25/04 6 Unacceptable
Horsepen Creek 1AHPR-HP01-SOS 0 0 trail off Lake Shore Dr. dead ends into riffle
08/09/03 6 Unacceptable
11/30/03 6 Unacceptable
03/01/04 5 Unacceptable
Burke's Spring Branch 1AFOU-PIM06-SOS -77.17923 38.90877 In Haycock-Longfellow Park, within 15 feet upstream and downstream of wooden bridge behind Longfellow School
11/23/03 5 Unacceptable
11/28/04 5 Unacceptable
Burke's Spring Branch 1AFOU-PIM05-SOS -77.17941 38.908 approximately 200-500 ft. downstream of Hutchison Street, on McLean Greens common land
11/26/03 2 Unacceptable
04/18/04 4 Unacceptable
08/19/04 5 Unacceptable
12/04/04 2 Unacceptable
Burke's Spring Branch 1AFOU-PIM04-SOS 0 0
11/22/03 6 Unacceptable
Burke's Spring Branch 1AFOU-PIM07-SOS 0 0
11/29/03 2 Unacceptable
Big Rocky Run 1ABIR-CR10-SOS -77.44853 38.84653 Trail to stream runs between 4321 and 4323 Majestic Lane - sample near bridge.  Big Rocky Run Stream Valley Park
11/16/03 3 Unacceptable
02/15/04 3 Unacceptable
04/22/04 2 Unacceptable
07/26/04 5 Unacceptable
11/14/04 8 Gray Zone (indeterminate conditions)
02/20/05 4 Unacceptable
07/29/05 5 Unacceptable
11/07/06 6 Unacceptable
Accotink Creek 1AACO-AC11-SOS -77.20513 38.959397
11/08/03 4 Unacceptable
Burke Spring Branch 1AXKS-PIM08-SOS -77.17923 38.91365 Burke's Spring Branch's confluence with Pimmit Run
02/21/04 2 Unacceptable
10/31/04 5 Unacceptable
04/17/05 5 Unacceptable
08/28/05 6 Unacceptable
Calamo Stream 1ACAL-ACC12-SOS -77.1946 38.7723 25 yards west of intersection of Ridgeway and Calamo Street
07/13/04 3 Unacceptable
11/06/04 3 Unacceptable
Accotink Creek 1AACO-AC14-SOS -77.23248 38.8046 At Lake Accotink Park, walk down trail from main office to creek, just downstream to first good riffles
10/25/04 4 Unacceptable
Bullneck Run 1ABUN-BULL01-SOS -77.21453 38.96545 About 1/4 mile upstream from where BR enters the Potomac River
11/30/04 4 Unacceptable
04/12/05 3 Unacceptable
08/20/05 6 Unacceptable
03/04/06 6 Unacceptable
08/08/06 8 Gray Zone (indeterminate conditions)
08/08/06 8 Gray Zone (indeterminate conditions)
08/08/06 8 Gray Zone (indeterminate conditions)
Backlick Run 1ABAL-CAM06-SOS -77.16293 38.79297 At Wilburdale Park
08/29/04 7 Unacceptable
11/27/04 5 Unacceptable
Horsepen Creek Unnamed Tributa 1AHPR-HP02-SOS 0 0 just downstream of crossing with Viking Drive
03/27/04 4 Unacceptable
09/04/04 5 Unacceptable
Quander Brook 1AQUA*-LHC02-SOS 0 0 between Quander Road and Fairview Dr (behind shopping center)
08/08/04 6 Unacceptable
11/28/04 6 Unacceptable
Pohick Creek 1APOH-POH10-SOS -77.20088 38.69805 100 yds downstream of Old Colchester Rd. Bridge
11/01/04 5 Unacceptable
Walney Creek 1AWLC*-1-SOS 0 0
11/21/04 10 Acceptable
07/24/05 9 Acceptable
02/18/06 11 Acceptable
11/25/06 9 Acceptable
Kingstowne Stream 1AKTS*-DOG01-SOS 0 0 Downstream from restoration beginning - first samplable riffle off trail
10/24/04 6 Unacceptable
02/05/05 6 Unacceptable
03/18/06
Burke's Spring Branch 1AFOU-PIM10-SOS 0 0 On Brooks Square Common Land, downstream of the confluence of the 2 forks of Burke's Spring Branch, and upstream of the berm that creates inline swp.
08/05/05 2 Unacceptable
Accotink Creek (tributary) 1AACO-ACC15-SOS 0 0 Off private lane, feeds pond; stretch between Holburn and Country Lane
06/25/05 5 Unacceptable
Fauquier
Goose Creek 1AGOO-1-SOS 77.83 38.96278 3/10 mile south of route 50 bridge
04/30/03 9 Acceptable
04/08/04 10 Acceptable
06/25/04 9 Acceptable
08/28/04 8 Gray Zone (indeterminate conditions)
02/01/05 9 Acceptable
03/13/05 10 Acceptable
10/30/05 10 Acceptable
Goose Creek 1AGOO-2-SOS -77.82389 38.47861 1/5 mile south of route 50 bridge
04/30/03 10 Acceptable
04/08/04 11 Acceptable
06/25/04 9 Acceptable
09/01/04 11 Acceptable
04/12/05 10 Acceptable
06/28/05 11 Acceptable
10/16/05 11 Acceptable
12/31/05 9 Acceptable
03/31/06 12 Acceptable
07/15/06 7 Unacceptable
10/01/06 10 Acceptable
12/17/06 10 Acceptable
Bolling Branch 1ABOL-9-SOS -77.89056 38.913056 4200 Maidstone Road - stream 100 yards SW from road
04/30/03 9 Acceptable
06/26/03 9 Acceptable
07/19/03 6 Unacceptable
03/28/04 7 Unacceptable
06/04/04 7 Unacceptable
09/21/04 10 Acceptable
02/03/05 8 Gray Zone (indeterminate conditions)
03/31/05 7 Unacceptable
06/29/05 7 Unacceptable
10/26/05 10 Acceptable
01/08/06 8 Gray Zone (indeterminate conditions)
03/27/06 10 Acceptable
09/26/06 8 Gray Zone (indeterminate conditions)
01/07/07 9 Acceptable
Goose Creek 1AGOO-4-SOS -77.89 38.91389 75 yards downstream of Bolling Branch, 25 yards from island, 1st riffle
04/30/03 10 Acceptable
07/19/03 11 Acceptable
03/28/04 10 Acceptable
06/04/04 11 Acceptable
09/26/04 6 Unacceptable
02/03/05 8 Gray Zone (indeterminate conditions)
06/28/05 9 Acceptable
10/16/05 5 Unacceptable
12/31/05 11 Acceptable
04/01/06 12 Acceptable
10/01/06 9 Acceptable
12/16/06 11 Acceptable
Little River 1ALIV-12-SOS -77.74952 38.90773 25 yards downstream from bridge at Rock Hill Mill Road
04/15/03 6 Unacceptable
07/17/03 6 Unacceptable
03/24/04 7 Unacceptable
06/02/04 5 Unacceptable
09/19/04 10 Acceptable
12/16/04 11 Acceptable
03/30/05 11 Acceptable
10/01/05 11 Acceptable
10/20/05 8 Gray Zone (indeterminate conditions)
12/31/05 8 Gray Zone (indeterminate conditions)
04/03/06 10 Acceptable
10/03/06 8 Gray Zone (indeterminate conditions)
12/15/06 11 Acceptable
Little River (Goose Creek) 1ALIV-13-SOS -77.7193 38.9508 Landmark School Road, upstream from bridge
04/24/03 6 Unacceptable
07/17/03 4 Unacceptable
03/26/04 8 Gray Zone (indeterminate conditions)
10/26/04 9 Acceptable
12/12/04 11 Acceptable
03/06/05 10 Acceptable
07/01/05 9 Acceptable
10/01/05 11 Acceptable
03/26/06 9 Acceptable
Cromwells Run 1ACRM-14-SOS -77.80938 38.93142 50 yards downstream of bridge at route 715
04/28/03 9 Acceptable
07/13/03 5 Unacceptable
04/08/04 9 Acceptable
06/22/04 8 Gray Zone (indeterminate conditions)
09/21/04 8 Gray Zone (indeterminate conditions)
12/22/04 8 Gray Zone (indeterminate conditions)
03/26/05 11 Acceptable
07/27/05 10 Acceptable
10/17/05 9 Acceptable
12/04/05 9 Acceptable
03/11/06 10 Acceptable
10/10/06 9 Acceptable
11/30/06 10 Acceptable
Cromwells Run 1ACRM-15-SOS -77.805 38.9
04/28/03 11 Acceptable
10/17/03 10 Acceptable
04/08/04 12 Acceptable
07/03/04 8 Gray Zone (indeterminate conditions)
09/23/04 10 Acceptable
12/10/04 11 Acceptable
03/31/05 11 Acceptable
06/22/05 9 Acceptable
10/19/05 11 Acceptable
01/03/06 11 Acceptable
03/26/06 12 Acceptable
09/29/06 12 Acceptable
12/17/06 10 Acceptable
Goose Creek (Upper) 1AGOO-6-SOS -77.9925 38.90528 50 yards downstream of route 757 bridge at Markham.  Between route 55 and railroad
10/10/03 10 Acceptable
04/06/04 10 Acceptable
06/19/04 7 Unacceptable
09/21/04 6 Unacceptable
04/12/05 11 Acceptable
06/28/05 9 Acceptable
10/15/05 10 Acceptable
01/09/06 9 Acceptable
03/29/06 11 Acceptable
07/09/06 11 Acceptable
01/01/07 11 Acceptable
Goose Creek (Upper) 1AGOO-7-SOS -78.02972 38.90528 2nd riffle below route 726 bridge
10/14/03 11 Acceptable
04/06/04 11 Acceptable
06/19/04 9 Acceptable
09/21/04 9 Acceptable
02/03/05 9 Acceptable
03/07/05 7 Unacceptable
06/20/05 8 Gray Zone (indeterminate conditions)
10/24/05 9 Acceptable
12/24/05 7 Unacceptable
04/12/06 11 Acceptable
10/06/06 11 Acceptable
01/01/07 10 Acceptable
Gap Run 1AGAR-8-SOS -7789556 38.94361 Approximately 75' upstream of bridge on route 623 between the Rectortown Road and Delaplane
08/06/03 7 Unacceptable
04/22/04 9 Acceptable
07/06/04 6 Unacceptable
10/26/04 11 Acceptable
05/01/05 12 Acceptable
09/03/05 8 Gray Zone (indeterminate conditions)
03/12/06 7 Unacceptable
09/25/06 8 Gray Zone (indeterminate conditions)
12/12/06 11 Acceptable
Crooked Run 1ACRF-10-SOS -77.93806 38.9472 2256 Winchester Ridge; 50 meters downstream of driveway bridge
08/11/03 11 Acceptable
03/28/04 11 Acceptable
09/14/04 12 Acceptable
02/03/05 9 Acceptable
03/26/05 10 Acceptable
06/29/05 9 Acceptable
09/30/05 11 Acceptable
12/28/05 9 Acceptable
09/29/06 9 Acceptable
12/15/06 9 Acceptable
Goose Creek 1AGOO-11-SOS -77.870278 38.93722 100 yards downstream of Rectortown Road, Route 710 Bridge
08/08/03 12 Acceptable
03/29/04 9 Acceptable
04/20/04 11 Acceptable
06/26/04 9 Acceptable
12/05/04 6 Unacceptable
07/02/05 10 Acceptable
Goose Creek 1AGOO-5-SOS -77.9233 38.91361 100' North of Route 17 bridge; above confluence of crooked Run
03/28/04 12 Acceptable
09/27/04 10 Acceptable
02/03/05 8 Gray Zone (indeterminate conditions)
03/20/05 10 Acceptable
03/26/05 10 Acceptable
09/28/05 8 Gray Zone (indeterminate conditions)
12/27/05 8 Gray Zone (indeterminate conditions)
03/31/06 10 Acceptable
07/11/06 9 Acceptable
10/06/06 10 Acceptable
12/18/06 9 Acceptable
Goose Creek 1AGOO-13-SOS -77.805 38.89806 Below Edens house on Herringdon Road, Route 705
07/01/04 7 Unacceptable
Goose Creek 1AGOO-3-SOS -77.8691 38.9375 Rt. 710 bridge
06/26/04 6 Unacceptable
09/12/04 8 Gray Zone (indeterminate conditions)
02/01/05 8 Gray Zone (indeterminate conditions)
03/20/05 9 Acceptable
06/25/05 10 Acceptable
09/05/05 7 Unacceptable
03/25/06 7 Unacceptable
06/17/06 6 Unacceptable
09/09/06 8 Gray Zone (indeterminate conditions)
12/16/06 11 Acceptable
Bollings Branch 1ABOL-18-SOS -77.904722 38.891944 MAP 13 SECTION D -1, 9406 JUSTICE LANE ON RT. F-185,GROVE LANE, ABOUT 3 MILES WEST OF MARSHALL. 190 YDS FROM SHED TO 2ND BEND IN STREAM.
03/13/06 11 Acceptable
09/27/06 9 Acceptable
12/03/06 10 Acceptable
Barton's Creek 1ABAO-16-SOS -77.70833 38.938056 Map 9 Section 5-D From Middleburg traffic light go 2.5 miles on Rt. 776 to a right on Logan’s Mill Rd. Rt. 628.  Go 6/10th of a mile to first bridge Walk upstream to first riffles.
09/23/06 11 Acceptable
12/28/06 7 Unacceptable
Hungry Creek 1AHGC*-17-SOS -77.655278 38.97056 Loudoun Map 35  Sect C-2   About 4 miles East on Rt. 50 from Middleburg.  Right on Aldie Dam Rd. Rt. 632Go 6/10th of a mile to a slanted dirt road on left.On right red tag on barbed wire fence over stone wall.Go under & walk 110 strides to stream & riffle
09/28/06 12 Acceptable
12/11/06 9 Acceptable
Goose Creek 1AGOO-10-SOS -77.685 39.0244 Loudoun Map 27 Sect J 4/5   From Middleburg go east about 4 mi to right turn onto Snickersville Pike, Rt. 734.Go 4.6 miles to right turn onto Lime Kiln Road, Rt. 733.  Go 1.2 mi to site on left side of road. Walk down bank & upstream to riffles.
10/03/06 10 Acceptable
01/16/07 5 Unacceptable
Jeffries Branch 1AJEE-22-SOS -77.87028 39.03083 From Upperville go west on Rt 50 to Trappe Rd., Rt 619 on edge of town. Go 2.2 miles to Millville Rd. Rt. 743 a right turn just as road becomes gravel. Go 6/10ths of a mile to 2 stone posts/tree line driveway on left.
10/23/06 9 Acceptable
12/18/06 8 Gray Zone (indeterminate conditions)
Loudoun
Jack's Run 1AJAC-2-SOS -77.7283 39.1197 North side of route 690 at culvert
02/11/02 8 Gray Zone (indeterminate conditions)
Crooked Run 1ACRF-3-SOS -77.6828 39.0914 South of Route 727 Bridge approximately 50' downstream
05/20/04 11 Acceptable
12/08/04 10 Acceptable
05/05/05 10 Acceptable
08/18/05 8 Gray Zone (indeterminate conditions)
North Fork Goose Creek 1ANOG-4-SOS -77.6953 39.0756 Approximately 300' west of route 722
02/11/02 6 Unacceptable
Simpson Creek 1ASIM*-8-SOS -77.7692 39.1289 West side route 719, Round Hill
02/11/02 10 Acceptable
North Fork Goose Creek 1ANOG-7B-SOS -77.7508 39.135 Downstream old RR bridge at Villages, north side of bypass, 100' upstream
02/11/02 6 Unacceptable
Goose Creek 1AGOO-12-SOS -77.82944 38.96412 From Rt. 50 go 1.4 mi. on Crenshaw Rd. to red survey tag on right.  Go to large Sycamore tree on bank and riffles just down stream a few feet.
06/05/05 7 Unacceptable
Goose Creek 1AGOO-20-SOS -77.608056 39.02889 Goose Creek - Loudoun Map  28  Section- K 4   Banshee Reeks Nature Preserve
10/03/06 6 Unacceptable