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