PRWI_242861_Camp_5_Access_Drawings_FINAL_APPROVED_25_1218.pdf

IMPROVE VISITOR ACCESS TO UNITS A & B

ALPHA

CORPORATION

CS-1[COVER].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

CABIN CAMP 5 IN PRINCE WILLIAM FOREST PARK

PRINCE WILLIAM FOREST PARK

8/27/249/16/2410/4/2411/1/24 gfr23783 Standard gfr23783 Text Box November 12, 2024 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

Δ4 C7, C9A, C10 REINCORPORATE OPTION 12/18/25 JPB

LOD LOD

G

CO

ALPHA

CORPORATION

C1[NOTES -LEGEND-ABBREVIATIONS].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SECTION

SCALE:CG-001

A

CG-002

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

MAWAVI ROAD

G

G

G

X

X

ALPHA

CORPORATION

C2 [KEY PLAN].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

AREA A

SHEETS :

C3, C5, C7, C10

AREA B

SHEETS :

C4, C6, C8, C11

CONTRACTOR STAGING

& PARKING AREA

(SEE NOTE 4)

SITE ACCESS ROUTE

MAWAVI ROAD

(GRAVEL SURFACE)

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

G

G

G

G

G

G

X

X

X

X

X

BENCHMARK 2

BENCHMARK

BENCHMARK

BENCHMARK

ALPHA

CORPORATION

C3_C4 [EX COND].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SE

E

SH

EE

T C4

DENUDED POOR CONDITION BARREN LAND

COVER

(SEE SHEET C18) SURVEY CONTROL DATA

(US FT)

NORTHING

6,893,923.17

6,894,250.86

6,895,055.02

6,894,486.81

6,894,622.02

6,894,979.44

EASTING

11,793,840.42

11,793,649.85

11,793,699.59

11,793,652.10

11,793,638.77

11,793,635.19

NAME

BM6

BM5

BM4

BM3

BM2

BM1

DESCRIPTION

MAGNETIC HEAD NAIL

MAGNETIC HEAD NAIL

MAGNETIC HEAD NAIL

MAGNETIC HEAD NAIL

MAGNETIC HEAD NAIL

MAGNETIC HEAD NAIL

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

BENCHMARK

BENCHMARK

ALPHA

CORPORATION

C3_C4 [EX COND].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SE

E

SH

EE

T C3

DENUDED POOR CONDITION BARREN LAND

COVER

(SEE SHEET C18)

SURVEY CONTROL DATA

(US FT)

NORTHING

6,893,923.17

6,894,250.86

6,895,055.02

6,894,486.81

6,894,622.02

6,894,979.44

EASTING

11,793,840.42

11,793,649.85

11,793,699.59

11,793,652.10

11,793,638.77

11,793,635.19

NAME

BM6

BM5

BM4

BM3

BM2

BM1

DESCRIPTION

MAGNETIC HEAD NAIL

MAGNETIC HEAD NAIL

MAGNETIC HEAD NAIL

MAGNETIC HEAD NAIL

MAGNETIC HEAD NAIL

MAGNETIC HEAD NAIL

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

G

G

G

G

G

G

X

X

X

X

X

ALPHA

CORPORATION

C5_C6 [DEMO].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SE

E

SH

EE

T C6

DEMOLITION KEY NOTES

REMOVE EX WOOD COMPOSITE WALKWAY

REMOVE EX TREE

PROTECT EX CONCRETE STOOP

PROTECT EX COVERED PORCH AND CONCRETE SLAB

UNDER COVERED PORCH

REMOVE EX GRAVEL AS REQUIRED FOR NEW CONSTRUCTION

PROTECT EX EQUIPMENT PAD

PROTECT EX FLAGPOLE

PROTECT EX WATER FOUNTAIN

NOTES

1) SEE EROSION & SEDIMENT CONTROL PLANS FOR TREE

PROTECTION DETAILS AND TREE PROTECTION ALONG THE

LIMITS OF DISTURBANCE (LOD)

PROTECT EX RAMP

REMOVE EX GATE /GATE POSTS

PROTECT EX STEPS

PROTECT EX UTILITY

NOT USED THIS SHEET

RELOCATE EX WAYSIDE AS REQUIRED

TO ACCOMMODATE NEW WALKWAY.

SEE SHEET C7 FOR NEW LOCATION

OF RELOCATED WAYSIDE.

REMOVE EX WOOD WALL & WOOD STEP

REMOVE EX WOODEN STEPS.

PROTECT EX STONE WALL

NOT USED THIS SHEET

NOT USED THIS SHEET

NOT USED THIS SHEET

PROTECT EX PRIVACY WALL

REMOVE EX CONCRETE EQUIPMENT PADS. EX

EQUIPMENT ON PADS TO BE REMOVED BY OTHERS

UNDER SEPARATE CONTRACT

NOT USED THIS SHEET

REMOVE SECTION OF PIPE AS REQUIRED TO CONSTRUCT OUTLET

CONTROL STRUCTURE OCS 2.

RELOCATION REQUIRED AS PART OF OPTION 1

REMOVE EX GRAVEL AS REQUIRED FOR EXCAVATION & INSTALLATION

OF UNDERGROUND STORAGE PIPE SYSTEM DA3.

NOT USED THIS SHEET

ALL EX TREES LOCATED INSIDE THE LOD AND EX TREES

LOCATED ADJACENT THE OUTER PERIMETER OF THE LOD TO

REMAIN AND BE PROTECTED UNLESS OTHERWISE INDICATED

BY KEY NOTE 2 (TYPICAL).

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

CORPORATION

C5_C6 [DEMO].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SE

E

SH

EE

T C-

DEMOLITION KEY NOTES

NOT USED THS SHEET

REMOVE EXISTING TREE

PROTECT EX CONCRETE STOOP

NOT USED THIS SHEET

PROTECT EX EQUIPMENT

NOT USED THIS SHEET

PROTECT EX WATER FOUNTAIN

NOTES

PROTECT EX UTILITY

REMOVE EX CONC SIDEWALK SURROUNDING BLDG.

SOUTH EAST CORNER OF SIDEWALK TO REMAIN.

NOT USED THIS SHEET

PROTECT EX PROPANE TANKS AND SUPPORTING

SECTION OF CONCRETE. SEE KEY NOTE 25

NOT USED THIS SHEET

NOT USED THIS SHEET

NOT USED THIS SHEET

NOT USED THIS SHEET

NOT USED THIS SHEET

NOT USED THIS SHEET

NOT USED THIS SHEET

NOT USED THIS SHEET

PROTECT EX GATE /GATE POSTS

NOT USED THIS SHEET

PROTECT EX PRIVACY WALL

NOT USED ON THIS SHEET

APPROX LIMITS OF CONCRETE TO REMAIN TO SUPPORT

PROPANE TANKS. REMOVE CONCRETE BEYOND TANKS

AT THE NEAREST JOINT.

1) SEE EROSION & SEDIMENT CONTROL PLANS FOR TREE

PROTECTION DETAILS AND TREE PROTECTION ALONG THE

LIMITS OF DISTURBANCE (LOD)

ALL EX TREES LOCATED INSIDE THE LOD AND EX TREES

LOCATED ADJACENT THE OUTER PERIMETER OF THE LOD

TO REMAIN AND BE PROTECTED UNLESS OTHERWISE

INDICATED BY KEY NOTE 2 (TYPICAL).

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

G

G

G

G

G

G

X

X

X X

X

10+00

11+00

12+00

13+00 14+00

+0

20+63

+0

+5

50+00

51+00

51+20

+0

61+00

+6

+0

+6

100+00

101+00

101+64

+0

31+00 31+30

ALPHA

CORPORATION

C7 [SITE&GRADE]_NEW.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SE

E

SH

EE

T C8

SEE ENLARGED GRADING PLAN SHEET C9

KEY NOTES

WALKWAY - FLEXIBLE POROUS PAVEMENT WITH CURB.

CONCRETE SIDEWALK SURROUNDING BUILDING

RESTORE ALL PERVIOUS AREAS WITHIN LOD WITH SEED/TURF. TYPICAL

EDGE OF GRAVEL. PROVIDE FINE GRADING AS REQUIRED TO PROVIDE

SMOOTH TRANSITION TO ASPHALT PARKING AND ALONG EDGE OF ROADWAY.

PROVIDE ASPHALT PAVEMENT AT NEW PARKING

1' - 3' HIGH RETAINING WALL. SEE STRUCTURAL FOR DETAIL.

GRADING NOTES

1) REVISE GRADING AT DORMS AS SHOWN TO DIRECT

RUNOFF AWAY FROM BUILDING

1' - 2' HIGH RETAINING WALL - SEE STRUCTURAL FOR DETAIL.

SPLIT RAIL FENCE

LEGEND

OPTION 1 (BLDG A-60 ACCESSIBLE PATH & PARKING)

OPTION 2 (BLDG A-16 TO A-60 ACCESSIBLE PATH)

“STRIP TOPSOIL TO A DEPTH OF 6”, PERFORM

SOILS TESTING AND ANALYSIS AND PROVIDE

SOILS AMENDMENTS IN ACCORDANCE WITH

SPECIFICATION SECTION 329115 FL “SOIL

PREPARATION”, AND PERMANENTLY SEED IN

ACCORDANCE WITH SPECIFICATION SECTION

329200 TURFS AND GRASSES.

STAMPED & DYED CONCRETE WITH CURB.

DELETE CURB ACROSS

WALKWAY AT START OF

OPTION IF OPTION SELECTED

RESTORE EX GRAVEL

ROADWAY SURFACE AFTER

INSTALLATION OF

UNDERGROUND SWM

FACILITY. SEE SWM

UNDERGROUND STORAGE

NOTE 1 ON SHEET C23.

CONNECT NEW STORM PIPING

TO EXISTING DOWNSPOUTS

OPTION 3 (BLDG A-17 ACCESSIBLE PATH)

END OF OPTION

START OF OPTION

RELOCATED WAYSIDE. SEE TYPICAL POST INSTALLATION DETAIL 3 ON C26.

CONCRETE SIDEWALK WITH CROSSWALK STRIPING

PLANT NEW TREE. SEE TREE PLANTING DETAIL 5 ON SHEET C26 AND TREE PLANTING SCHEDULE, THIS SHEET.

NOT USED THIS SHEET

RELOCATE WAYSIDE AS PART OF OPTION 1. SEE TYPICAL POST INSTALLATION DETAIL 3 ON C26.

NOT USED THIS SHEET

PROVIDE CLEANOUT

NOT USED THIS SHEET

TREE PLANTING SCHEDULE

TREE

NO.

BOTANICAL /

COMMON NAME

DBH (IN) LATITUDE LONGITUDE

T1 KALMIA LATFOLIA

"MOUNTAIN LAUREL"

T2 HAMAMELIS VIRGINIANA

"WITCH HAZEL"

T3 QUERCUS ALBA

"WHITE OAK"

T4 QUERCUS ALBA

"WHITE OAK"

3 8/27/249/16/2410/4/2411/1/24 jbello Line jbello Polygon jbello Callout

THIS OPTION IS NOT IN CONTRACT

9/3/2025 jbello Callout

THIS OPTION IS NOT IN CONTRACT

9/3/2025 jbello Polygon jbello Callout

THIS OPTION WILL BE CONSIDERED

12/18/2025 jbello Line jbello Line jbello Line jbello Line jbello Line jbello Line jbello Line jbello Polygon jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

jbello Highlight

13+00 14+00

15+00

16+00

+0

18+00

+7

+0

20+63

70+00

70+90

+0

+3

ALPHA

CORPORATION

C7 [SITE&GRADE]_NEW.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SE

E

SH

EE

T C7

KEY NOTES

WALKWAY - FLEXIBLE POROUS PAVING WITH CURB

CONCRETE SIDEWALK SURROUNDING BUILDING

RESTORE ALL PERVIOUS AREAS WITHIN LOD WITH SEED/TURF. TYPICAL

GRADING NOTES

1) REVISE GRADING AT DORMS AS SHOWN TO DIRECT RUNOFF

AWAY FROM BUILDING

NOT USED THIS SHEET

SEE ENLARGED GRADING PLAN SHEET C9

PROVIDE ASPHALT PAVEMENT AT NEW PARKING

1' - 3' HIGH RETAINING WALL. SEE STRUCTURAL FOR DETAIL.

1' - 2' HIGH RETAINING WALL. SEE STRUCTURAL FOR DETAIL.

SPLIT RAIL FENCE

LEGEND

NOT USED THIS SHEET

NOT USED THIS SHEET

“STRIP TOPSOIL TO A DEPTH OF 6”, PERFORM

SOILS TESTING AND ANALYSIS AND PROVIDE

SOILS AMENDMENTS IN ACCORDANCE WITH

SPECIFICATION SECTION 329115 FL “SOIL

PREPARATION”, AND PERMANENTLY SEED IN

ACCORDANCE WITH SPECIFICATION SECTION

329200 TURFS AND GRASSES.

END OF OPTION

START OF OPTION

DELETE CURB ACROSS WALKWAY AT START OF OPTION IF OPTION SELECTED

CONNECT NEW STORM PIPING TO EXISTING DOWNSPOUTS

NOT USED THIS SHEET

NOT USED THIS SHEET

NOT USED THIS SHEET

APPROX LIMITS OF CONCRETE TO REMAIN TO

SUPPORT PROPANE TANKS. REMOVE CONCRETE

BEYOND TANKS AT THE NEAREST JOINT.

OPTION 4 (B-15 ACCESSIBLE PATH)

NOT USED THIS SHEET

PLANT NEW TREE. SEE TREE PLANTING DETAIL 5

ON SHEET C26 AND TREE PLANTING SCHEDULE,

THIS SHEET.

PROVIDE CLEANOUT

NOT USED THIS SHEET

NOT USED THIS SHEET

TREE PLANTING SCHEDULE

TREE

NO.

BOTANICAL /

COMMON NAME

DBH (IN) LATITUDE LONGITUDE

T5 KALMIA LATIFOLIA

"MOUNTAIN LAUREL"

T6 HAMAMELIS VIRGINIANA

"WITCH HAZEL"

T7 QUERCUS ALBA

"WHITE OAK"

T8 QUERCUS ALBA

"WHITE OAK"

T9 QUERCUS ALBA

"WHITE OAK"

EDGE OF GRAVEL. PROVIDE FINE GRADING AS REQUIRED TO PROVIDE

SMOOTH TRANSITION TO ASPHALT PARKING AND ALONG EDGE OF ROADWAY.

8/27/249/16/2410/4/2411/1/24 jbello Polygon jbello Line jbello Line jbello Line jbello Line jbello Callout

THIS OPTION IS NOT IN CONTRACT

9/3/2025 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

12+00

13+00 14+00

15+00

+0

20+63

ALPHA

CORPORATION

C7 [SITE&GRADE]_NEW.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

KEY NOTES

NEW WALKWAY - FLEXIBLE POROUS PAVING WITH CURB.

NOT USED THIS SHEET

CONCRETE SIDEWALK WITH CROSSWALK STRIPING

RESTORE ALL PERVIOUS AREAS WITHIN LOD WITH SEED/TURF. TYPICAL

PROVIDE ASPHALT PAVEMENT AT NEW PARKING

1' - 3' HIGH RETAINING WALL. SEE STRUCTURAL FOR DETAIL.

1' - 2' HIGH RETAINING WALL. SEE STRUCTURAL FOR DETAIL.

SPLIT RAIL FENCE

PLANT NEW TREE. SEE TREE PLANTING DETAIL 5 ON

SHEEET C26 AND TREE PLANTING SCHEDULE ON SHEET C7.

KEY NOTES 10 TO 15 NOT USED THIS SHEET

KEY NOTES 16 TO 21 NOT USED THIS SHEET

NOT USED THIS SHEET

RELOCATE ELECTRICAL CONDUIT AS NECESSARY

TO FACILITATE SPLIT RAIL FENCE INSTALLATION.

NOT USED THIS SHEET

EDGE OF GRAVEL. PROVIDE FINE GRADING AS REQUIRED TO PROVIDE

SMOOTH TRANSITION TO ASPHALT PARKING AND ALONG EDGE OF ROADWAY.

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

X

X

X X

X

10+00

11+00

12+00

13+00 14+00

+0

20+63

+0

+5

50+00

51+00

51+20

+0

61+00

+6

+0

+6

100+00

101+00

101+64

+0

31+00 31+30

ALPHA

CORPORATION

C7 [SITE&GRADE]_NEW.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SE

E

SH

EE

T C9

B

LAYOUT KEY NOTES

MAIN A-60 TO B-15. STA. 10+00 TO STA. 18+77. SEE SHEET C9C

A-60 TO A-10. STA. 30+00 TO STA. 31+31. SEE SHEET C9C

OPTION 3 INTERSECTION TO A-10. STAT 50+00 TO STA. 51+20. SEE SHEET C9C

INTERSECTION TO MAIN. STA. 60+00 TO STA. 61+63. SEE SHEET C9D

A-10 TO A-16. STA. 40+00 TO STA. 40+58. SEE SHEET C9C

MAIN TO A-40. STA 20+00 TO STA. 20+62. SEE SHEET C9C

OPTION 1 STA 90+00 TO STA. 90+64. SEE SHEET C9C

OPTION 2 STA. 100+00 TO STA. 101+64. SEE SHEET C9C

8/27/249/16/2410/4/2411/1/24 jbello Polygon jbello Polygon jbello Polygon jbello Callout

THIS OPTION IS NOT IN CONTRACT

9/3/2025 jbello Callout

THIS OPTION IS NOT IN CONTRACT

9/3/2025 jbello Callout

THIS OPTION WILL BE CONSIDERED

12/18/2025 jbello Line jbello Line jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

jbello Highlight

13+00 14+00

15+00

16+00

+0

18+00

+7

+0

20+63

70+00

70+90

+0

+3

ALPHA

CORPORATION

C7 [SITE&GRADE]_NEW.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SE

E

SH

EE

T C9

A

LAYOUT KEY NOTES

MAIN A-60 TO B-15. STA. 10+00 TO STA. 18+77. SEE SHEET C9C

NOT USED THIS SHEET

NOT USED THIS SHEET

MAIN TO A-40. STA 20+00 TO STA. 20+62. SEE SHEET C9C

B-14 TO B-10. STA. 70+00 TO STA. 70+90. SEE SHEET C9D

MAIN TO B-10. STA. 80+00 TO STA. 80+33. SEE SHEET C9D

NOT USED THIS SHEET

NOT USED THIS SHEET

NOT USED THIS SHEET

NOT USED THIS SHEET

11 OPTION 4. STA. 80+00 TO B-15. SEE SHEET C9D

8/27/249/16/2410/4/2411/1/24 jbello Polygon jbello Callout

THIS OPTION IS NOT IN CONTRACT

9/3/2025 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

A-60 TO B-15

10+00 10+50 11+00 11+50 12+00 12+50 13+00 13+50 14+00 14+50 15+00 15+50 16+00 16+50 17+00 17+50 18+00 18+50 19+00 19+50

BL

D

G . A

-6

ST

A.

0+

BL

D

G . B

-1

ST

A.

8+

PROP. GRADE

EX. GRADE

MAIN TO A-40

20+00 20+50 21+00 21+50

A-60 TO A-10

30+00 30+50 31+00 31+50 32+00

BL

D

G A

-4

ST

A.

0+

BL

D

G A

-6

ST

A.

0+

BL

D

G A

-1

ST

A.

1+

PROP. GRADE

EX. GRADE

PROP. GRADE

EX. GRADE

INTERSECTION TO A-10

50+00 50+50 51+00 51+50 52+00

A-10 TO A-16

40+00 40+50 41+00 41+50

BL

D

G A

-1

ST

A.

0+

BL

D

G A

-1

ST

A.

0+

IN

TE

R

SE

C

TI

O N

W

IT

H M

AI

N

P

AT

H

ST

A.

0+

BL

D

G A

-1

ST

A.

1+

PROP. GRADE

EX. GRADE

PROP. GRADE

EX. GRADE

ALPHA

CORPORATION

C7 [SITE&GRADE]_NEW.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

H:V:

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

INTERSECTION TO MAIN

60+00 60+50 61+00 61+50 62+00 62+50

B-14 TO B-10

70+00 70+50 71+00 71+50

MAIN TO B-10

80+00 80+50 81+00

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ALPHA

CORPORATION

C7 [SITE&GRADE]_NEW.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

H:V:

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

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EROSION & SEDIMENT CONTROL LEGEND

SFSILT FENCE

TITLEVESCH NO. KEY SYMBOL

3.05

OUTLET PROTECTION3.18

TREE PROTECTION3.38

SF

TP

PERMANENT

SEEDING3.32 PS PS

OP

TEMP CONSTRUCTION

ENTRANCE3.02 CE

CONCRETE WASHOUT

STRUCTURE CWS

ALPHA

CORPORATION

C10_C11_C12_C13[E&S].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

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LEGEND

8/27/249/16/2410/4/2411/1/24 jbello Polygon jbello Polygon jbello Polygon jbello Callout

THIS OPTION IS NOT IN CONTRACT

9/3/2025 jbello Callout

THIS OPTION IS NOT IN CONTRACT

9/3/2025 jbello Callout

THIS OPTION WILL BE CONSIDERED

12/18/2025 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

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SFSILT FENCE

TITLEVESCH NO. KEY SYMBOL

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OUTLET PROTECTION3.18

TREE PROTECTION3.38

SF

TP

PERMANENT

SEEDING3.32 PS PS

OP

TEMP CONSTRUCTION

ENTRANCE3.02 CE

CONCRETE WASHOUT

STRUCTURE CWS

SF

ALPHA

CORPORATION

C10_C11_C12_C13[E&S].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SE

E

SH

EE

T C-

LEGEND

8/27/249/16/2410/4/2411/1/24 jbello Polygon jbello Callout

THIS OPTION IS NOT IN CONTRACT

9/3/2025 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

CORPORATION

C10_C11_C12_C13[E&S].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

GENERAL EROSION CONTROL NOTES:

1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR SATISFYING ANY AND ALL EROSION

CONTROL (EC) AND STORMWATER MANAGEMENT (SWM) REQUIREMENTS FOR ANY

LAND DISTURBING ACTIVITIES, INCLUDING BUT NOT LIMITED TO, ON-SITE OR OFFSITE

BORROW, ON-SITE OR OFFSITE STOCKPILING OR DISPOSAL OF WASTE MATERIALS.

BEFORE UNDERTAKING ANY LAND DISTURBING ACTIVITY FOR WHICH THE PLANS DO

NOT SPECIFICALLY ADDRESS EROSION CONTROL AND STORMWATER MANAGEMENT,

THE CONTRACTOR SHALL CONTACT THE REGIONAL OFFICE OF THE DIVISION OF SOIL

AND WATER CONSERVATION TO DETERMINE WHAT EC AND SWM MEASURES ARE

NECESSARY. THE CONTRACTOR SHALL COMPLETELY SATISFY ALL REQUIREMENTS OF

THE CONTRACTING OFFICER INCLUDING PROVIDING A DESIGNATED, CERTIFIED,

"RESPONSIBLE LAND DISTURBER" AS DEFINED IN 9VAC25-850-10 BEFORE

CONTINUING WITH THE CONCERNED ACTIVITY.

2. DEVICES SHOWN ON SHEETS C10 AND C11 ARE TO BE CONSIDERED MINIMUM

EROSION AND SEDIMENT CONTROLS. ADDITIONAL CONTROLS MAY BE NECESSARY

DUE TO CONTRACTOR PHASING OR OTHER UNANTICIPATED CONDITIONS. IT IS THE

CONTRACTOR'S RESPONSIBILITY TO PROVIDE ADDITIONAL DEVICES TO THOSE

SHOWN IN ORDER TO CONTROL EROSION AND SEDIMENTATION. THIS IS INCLUDING,

BUT NOT LIMITED TO, THE REVISION, RELOCATION OR ADDITIONS OF SILT FENCE,

INLET PROTECTION, AND TEMPORARY SEEDING.

3. EROSION AND SEDIMENT CONTROL MEASURES SHALL BE INSTALLED AND

MAINTAINED ACCORDING TO THE STANDARDS AND SPECIFICATIONS OF THE LATEST

EDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK.

4. THE CONTRACTOR IS TO PROVIDE ADEQUATE MEANS OF ALLAYING DUST AS

NECESSARY BY APPLYING EITHER MOISTURE, CALCIUM CHLORIDE OR BOTH

MATERIALS ALONG THOSE SECTIONS OF THE PROJECT ADJACENT TO PUBLIC ACCESS.

5. APPLY PERMANENT VEGETATION (SEEDING) WITH SOIL PREPARATION.

AMENDMENTS AND SEED MIXTURE SHALL BE APPROPRIATE TO THE TIME OF YEAR.

SEE SEEDING MIX ON SHEET C13 FOR FURTHER DETAIL.

6. NO UNPROTECTED, DISTURBED AREA SHALL DRAIN TO ROADWAY PAVEMENTS SUCH

THAT THE SUBBASE, BASE OR WEARING SURFACE ARE CONTAMINATED BY SILT

TRAPPED AT LOW POINTS OR INLETS.

7. WATER SOURCE FOR TEMPORARY CONSTRUCTION ENTRANCES TO BE PROVIDED BY

EITHER A WATER TANK TRUCK OR AN EXISTING FIRE HYDRANT.

8. THE GRADING/EXCAVATION CONTRACTOR FOR THE SUBJECT SITE IS REQUIRED TO

NOTIFY, IN WRITING, THE ASSIGNED SITE INSPECTOR REGARDING ANY EXCESS

MATERIAL PROPOSED TO BE HAULED OFFSITE PRIOR TO HAULING. THE NOTIFICATION

MUST INDICATE THE QUANTITY OF MATERIAL TO BE MOVED OFFSITE,

IDENTIFICATION OF THE RECEIVING SITE WHERE THE EXCESS WILL BE TAKEN, AND

ALL INFORMATION NECESSARY TO SHOW THAT SUCH RECEIVING SITE HAS BEEN

PROPERLY PERMITTED AND HAS E&S CONTROLS INSTALLED.

ADDITIONAL EROSION CONTROL NOTES:

ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND

SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING

TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND

SEDIMENT CONTROL HANDBOOK, LATEST EDITION AND THE VIRGINIA EROSION AND

SEDIMENT CONTROL REGULATIONS.

ES-2: THE ADMINISTRATOR MUST BE NOTIFIED ONE WEEK PRIOR TO THE

PRE-CONSTRUCTION CONFERENCE, TWO WEEKS PRIOR TO THE COMMENCEMENT OF

LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. THE

NAME OF THE RESPONSIBLE LAND DISTURBER MUST BE PROVIDED TO THE

ADMINISTRATOR TWO WEEKS PRIOR TO ACTUAL ENGAGEMENT IN THE

LAND-DISTURBING ACTIVITY SHOWN ON THE APPROVED PLAN. IF THE NAME IS NOT

PROVIDED PRIOR TO ENGAGING IN THE LAND-DISTURBING ACTIVITY, THE PLAN'S

APPROVAL WILL BE REVOKED.

ES-3: ALL EROSION AND SEDIMENT CONTROL MEASURES TO BE PLACED PRIOR TO OR AS

THE FIRST STEP IN CLEARING.

ES-4: A COPY OF THE APPROVED E&SC PLAN SHALL BE MAINTAINED ON THE SITE AT ALL

TIMES.

ES-5: PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN

INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF-SITE BORROW OR

WASTE AREAS) THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY E&SC PLAN TO THE

ADMINISTRATOR FOR REVIEW AND APPROVAL.

ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL

EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION

AS DETERMINED BY THE INSPECTOR.

ES-7: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL

MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE

DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED, AFTER WHICH UPON

APPROVAL BY THE INSPECTOR, THE CONTROLS SHALL BE REMOVED. TRAPPED

SEDIMENT AND DISTURBED SOIL AREAS RESULTING FROM THE REMOVAL OF

TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER

EROSION AND SEDIMENTATION.

ES-8: DURING DEWATERING OPERATIONS, WATER SHALL BE PUMPED INTO AN

APPROVED FILTERING DEVICE.

ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES AT LEAST

ONCE EVERY FOUR (4) BUSINESS DAYS OR AT LEAST ONCE EVERY (5) BUSINESS DAYS

AND NO LATER THAN 48 HOURS FOLLOWING A MEASURABLE STORM EVENT. ANY

NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION

CONTROL DEVICES SHALL BE MADE IMMEDIATELY.

ES-10: THE CONTRACTOR IS RESPONSIBLE FOR THE DAILY REMOVAL OF SEDIMENT THAT

HAS BEEN TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE.

ES-11: SEEDING OPERATIONS SHALL BE INITIATED WITHIN 7 DAYS AFTER REACHING

FINAL GRADE OR UPON SUSPENSION OF GRADING OPERATIONS FOR ANTICIPATED

DURATION OF GRATER THAN 14 DAYS UPON COMPLETION OF GRADING OPERATIONS

FOR A SPECIFIC AREA.

ES-12: THE CONTRACTOR SHALL BE RESPONSIBLE FOR PREVENTING SURFACE AND AIR

MOVEMENT OF DUST FROM EXPOSED SOILS WHICH MAY PRESENT HEALTH HAZARDS,

TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE.

ES-13: A VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) PERMIT FOR THE

DISCHARGE OF STORMWATER FROM CONSTRUCTION ACTIVITIES IS REQUIRED FOR

PROJECTS DISTURBING 1 ACRE OR GREATER.

PERMANENT VEGETATIVE COVER NOTE:

ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT

SEEDING IMMEDIATELY FOLLOWING FINISH GRADING. SEEDING SHALL BE SELECTED

ACCORDING TO THE DETAIL ON SHEET C13. THE PLANTING SOIL MUST HAVE ENOUGH

FINE GRADED SOIL, FAVORABLE pH, SUFFICIENT PORE SPACE, SUFFICIENT DEPTH AND

FREE FROM TOXIC AMOUNTS OF HARMFUL MATERIALS OR EXCESSIVE QUANTITIES OF

ROOTS/STONES AND SHALL BE APPLIED WITH STD & SPEC 3.30. AFTER SEED IS IN PLACE,

IT MUST BE PROTECTED WITH A MULCH TO HOLD MOISTURE AND MODIFY

TEMPERATURE EXTREMES, AND TO PREVENT EROSION WHILE SEEDLINGS ARE

GROWING.

GENERAL LAND CONSERVATION NOTES

1. NO DISTURBED AREA WHICH IS NOT ACTIVELY BEING WORKED SHALL REMAIN

DENUDED FOR MORE THAN 7 CALENDAR DAYS.

2. ALL E&S CONTROL MEASURES APPROVED WITH THE E&S PLAN SHALL BE PLACED AS

THE FIRST STEP IN GRADING.

3. ALL STORM AND SANITARY SEWER LINES NOT IN STREETS SHALL BE SEEDED AND

MULCHED WITHIN 5 DAYS AFTER BACKFILL.

4. ELECTRIC POWER, TELEPHONE AND GAS SUPPLY TRENCHES SHALL BE COMPACTED,

SEEDED AND MULCHED WITHIN 7 DAYS AFTER BACKFILL.

6. DURING CONSTRUCTION ALL STORM SEWER INLETS SHALL BE PROTECTED BY INLET

PROTECTION, MAINTAINED AND MODIFIED DURING CONSTRUCTION PROGRESS AS

REQUIRED.

8. AT THE COMPLETION OF ANY PROJECT CONSTRUCTION AND PRIOR TO BOND

RELEASE, ALL TEMPORARY SEDIMENT CONTROLS SHALL BE REMOVED AND ALL

DENUDED AREAS SHALL BE STABILIZED.

9. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND BORROW AREAS

SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES.

10.ALL SOIL THAT IS BROUGHT TO THE SITE SHALL BE FROM AN APPROVED (i.e.

PERMITTED) LOCATION. ALL SOIL REMOVED FROM THE SITE WILL BE TAKEN TO AN

APPROVED (i.e. PERMITTED) LOCATION.

SOILS

THE SITE CONSISTS OF BUCKHALL LOAM(10C), MEADOWVILLE LOAM(38B), OCCOQUAN

SANDY LOAM(44D), AND OCCOQUAN SANDY LOAM(44E). FOR MORE SOILS

INFORMATION SEE SOIL MAP ON SHEET C13.

ANTICIPATED PHASING OF CONSTRUCTION

1. INSTALL SAFETY AND PROTECTION MEASURES PRIOR TO LAND DISTURBING

ACTIVITIES, INCLUDING TREE PROTECTION. INSTALL EROSION & SEDIMENT

CONTROLS & ENSURE THEY ARE PROPERLY FUNCTIONING PRIOR TO BEGINNING THE

WORK AND DISTURBANCE

2. NOTIFY THE PLAN APPROVING AUTHORITY ONE WEEK PRIOR TO THE

PRE-CONSTRUCTION CONFERENCE AND ONE WEEK PRIOR TO THE COMMENCEMENT

OF LAND-DISTURBING ACTIVITY AS REQUIRED BY GENERAL EROSION & SEDIMENT

CONTROL NOTES SHOWN THIS SHEET

3. PERFORM DEMOLITION OF EXISTING TREES, CONCRETE, GRAVEL, AND WOODEN

WALKWAY.

4. TEMPORARILY STABILIZE THE SITE DAILY AS WORK PROGRESSES.

5. INSTALL PROPOSED WALK AND OTHER APPURTENANCES AS PER THE PLAN.

6. PERMANENTLY SEED ALL DENUDED AREAS IMMEDIATELY FOLLOWING FINISHED

GRADING. FOR ALL STAGING AREAS AND UTILITY MAINTENANCE WAIVER WORK,

SOILS SHALL BE DECOMPACTED AND RESTORED TO PRE-DEVELOPMENT CONDITIONS.

7. NOTIFY THE PLAN APPROVING AUTHORITY ONE WEEK PRIOR TO THE FINAL

INSPECTION. UPON COMPLETION OF CONSTRUCTION, ADEQUATE STABILIZATION,

AND AUTHORITY APPROVAL, REMOVE ALL EROSION AND SEDIMENT CONTROL

MEASURES.

SEDIMENT AND EROSION CONTROL NARRATIVE

PROJECT DESCRIPTION

THE PROPOSED PROJECT IS LOCATED AT CABIN CAMP 5 IN PRINCE WILLIAM FOREST

PARK IN TRIANGLE, VIRGINIA. THE PROJECT PURPOSES TO CONSTRUCT NEW 5-FEET

WIDE ACCESSIBLE PATHWAYS WITHIN BOTH UNITS A & B OF CABIN CAMP 5. A NEW 6

FEET WIDE ACCESSIBLE PATH BETWEEN THE UNITS IS PROPOSED TO BE CONSTRUCTED

ALONG AN EXISTING SANITARY SEWER ALIGNMENT AND ADJACENT TO THE EXISTING

GRAVEL MAWAVI ROAD. THE EXISTING WOODEN PATHWAY LEADING TO THE DINING

HALL LOCATED IN CAMP A WILL BE RECONSTRUCTED. NEW HANDICAP ACCESSIBLE

PARKING IS PROPOSED TO BE INSTALLED NEXT TO THE EXISTING PAVILION.

EXISTING SITE CONDITIONS

THE SITE IS LOCATED AT THE PRINCE WILLIAM FOREST CABIN 5 CAMPGROUND IN

TRIANGLE, VIRGINIA. THE CAMPGROUND IS MAINLY WOODED. THE SIT CONTAINS

SEVERAL DORM STRUCTURES, BATH HOUSE BUILDINGS, AND OTHER CAMPGROUND

SUPPORT STRUCTURES. ELECTRIC, STORM WATER SEWER, SANITARY SEWER, AND

WATER LINES RUN THROUGHOUT THE CAMPGROUND TO SERVE THE EXISTING

CAMPGROUND STRUCTURES

ADJACENT PROPERTY

THE PROJECT SITE IS A PART OF THE OVERALL PRINCE WILLIAM FOREST PARK AND IS

BORDERED BY WOODS IN ALL DIRECTIONS.

OFFSITE AREAS

AS APPROVED BY THE CO.

CRITICAL EROSION AREAS

THE PROJECT SITE CONSISTS OF MODERATE SLOPES AND IS NEAR AREAS OF

STORMWATER RUNOFF CULMINATION.

SEDIMENT CONTROL PROGRAM

THE EROSION AND SEDIMENT CONTROL PROGRAM HAS BEEN PROPOSED TO BE

INSTALLED BEFORE OTHER CLEARING, GRADING AND CONSTRUCTION STARTS.

CONTROLS INSTALLED ARE INTENDED TO REMAIN FOR THE DURATION OF THE PROJECT.

DUST CONTROL NARRATIVE

THE CONTRACTOR SHALL UTILIZE DUST CONTROL MEASURES AS DEFINED IN THE

VIRGINIA STATE EROSION AND SEDIMENT CONTROL HANDBOOK TO PREVENT

SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE

THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS,

TRAFFIC SAFETY PROBLEMS, OR HARM ANIMAL OR PLANT LIFE.

EROSION AND SEDIMENT CONTROL MEASURES

1. SILT FENCE - 3.05 A TEMPORARY SEDIMENT BARRIER CONSTRUCTED OF POSTS AND

FILTER FABRIC AND PLACED AT THE TOE OF A SLOPE TO INTERCEPT AND DETAIN

SEDIMENT AND DECREASE FLOW VELOCITIES FROM DRAINAGE AREAS OF LIMITED

SIZE.

PERMANENT STABILIZATION/VEGETATIVE MEASURES WILL INCLUDE:

1. TEMPORARY SEEDING (3.31) - TEMPORARY SOIL STABILIZATION SHALL BE APPLIED

WITHIN 7 DAYS TO DENUDED AREAS NOT AT FINAL GRADE BUT WILL REMAIN

DORMANT FOR LONGER THAN 14 DAYS. TEMPORARY SEEDING MAY BE USED

DURING SEASONS WHEN PERMANENT SEEDING IS PROHIBITED. SEEDING SHALL BE

PER TABLE 3.31.B.

2. PERMANENT SEEDING (3.32) - ALL AREAS DENUDED BY THIS CONSTRUCTION

SHALL BE STABILIZED SEEDING. PERMANENT SEEDING SHALL BE PER TABLE ON

C13.

MAINTENANCE

1. ALL MEASURES ARE TO BE INSPECTED DAILY BY THE SITE SUPERINTENDENT OR

THEIR REPRESENTATIVE. ANY DAMAGED STRUCTURAL MEASURES ARE TO BE

REPAIRED BY THE END OF THE DAY.

2. TRAPPED SEDIMENT IS TO BE REMOVED AS REQUIRED TO MAINTAIN EFFICIENCY

AND TO BE DISPOSED OF BY SPREADING ON-SITE.

3. CONTROLS MAY BE REMOVED AFTER AREAS ABOVE THEM HAVE BEEN

STABILIZED AND WITH APPROVAL OF THE SITE INSPECTOR.

GUIDANCE MEMO NO. 15-2003

THE CONSTRUCTION OF ABOVEGROUND OR UNDERGROUND LINEAR UTILITIES MAY

BE CONDUCTED WITHOUT REQUIRING COVERAGE UNDER THE GENERAL VPDES

PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION ACTIVITIES

(CONSTRUCTION GENERAL PERMIT) PROVIDED THAT:

· THE PROJECT DOES NOT SIGNIFICANTLY ALTER THE PREDEVELOPMENT RUNOFF

CHARACTERISTICS OF THE LAND SURFACE AFTER THE COMPLETION OF

CONSTRUCTION AND FINAL STABILIZATION;

· THE PROJECT IS MANAGED SO THAT LESS THAN ONE (1) ACRE OF LAND

DISTURBANCE OCCURS ON A DAILY BASIS;

· THE DISTURBED LAND WHERE WORK HAS BEEN COMPLETED IS ADEQUATELY

STABILIZED ON A DAILY BASIS;

· THE ENVIRONMENT IS PROTECTED FROM EROSION AND SEDIMENTATION

DAMAGE ASSOCIATED WITH THE LAND-DISTURBING ACTIVITY;

· THE OWNER AND/OR CONSTRUCTION ACTIVITY OPERATOR DESIGNS, INSTALLS,

IMPLEMENTS, AND MAINTAINS POLLUTION PREVENTION MEASURES TO:

o MINIMIZE THE DISCHARGE OF POLLUTANTS FROM EQUIPMENT AND VEHICLE

WASHING, WHEEL WASH WATER, AND OTHER WASH WATERS;

o MINIMIZE THE EXPOSURE OF BUILDING MATERIALS, BUILDING PRODUCTS, CONSTRUCTION WASTES, TRASH, LANDSCAPE MATERIALS, FERTILIZERS, PESTICIDES, HERBICIDES, DETERGENTS, SANITARY WASTE, AND OTHER

MATERIALS PRESENT ON-SITE TO PRECIPITATION AND TO STORMWATER;

o MINIMIZE THE DISCHARGE OF POLLUTANTS FROM SPILLS AND LEAKS AND

IMPLEMENT CHEMICAL SPILL AND LEAK PREVENTION AND RESPONSE

PROCEDURES;

o PROHIBIT THE DISCHARGE OF WASTEWATER FROM THE WASHOUT OF

CONCRETE;

o PROHIBIT THE DISCHARGE OF WASTEWATER FROM THE WASHOUT AND

CLEANOUT OF STUCCO, PAINT, FORM RELEASE OILS, CURING COMPOUNDS,

AND OTHER CONSTRUCTION MATERIALS; AND

o PROHIBIT THE DISCHARGE OF FUELS, OILS, OR OTHER POLLUTANTS USED IN

VEHICLE AND EQUIPMENT OPERATION AND MAINTENANCE.

· THE OWNER AND/OR CONSTRUCTION ACTIVITY OPERATOR PROVIDES

REASONABLE ASSURANCE TO DEQ OR THE LOCAL VSMP AUTHORITY THAT ALL OF

THE ABOVE CONDITIONS WILL BE SATISFIED. THIS MAY BE ACCOMPLISHED BY

INCORPORATING THESE CONDITIONS INTO AN EROSION AND SEDIMENT

CONTROL PLAN DEVELOPED FOR THE PROJECT.

MINIMUM STANDARDS (9VAC25-840-40):

1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED

AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF

THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS

TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN

DORMANT FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION SHALL BE

APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR.

2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCK PILES AND BORROW AREAS

SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES. THE

APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT

STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND

SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE.

3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS

NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL

NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS

UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION.

4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND

OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A

FIRST STEP IN ANY LAND-DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL

BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE.

5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS

DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION.

6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED

BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN.

A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC

YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL

DRAINAGE AREAS LESS THAN THREE ACRES.

B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW

FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE

CONTROLLED BY A SEDIMENT BASIN. THE MINIMUM STORAGE CAPACITY OF A

SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE

OUTFALL SYSTEM SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY

OF THE BASIN DURING A 25-YEAR STORM OF 24-HOUR DURATION. RUNOFF

COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE

EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST WHILE THE

SEDIMENT BASIN IS UTILIZED.

7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER

THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING

EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE

PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM

IS CORRECTED.

8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS

CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL,

FLUME OR SLOPE DRAIN STRUCTURE.

9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER

PROTECTION SHALL BE PROVIDED.

10.ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION

SHALL BE PROTECTED SO THAT SEDIMENT-LADEN WATER CANNOT ENTER THE

CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED

TO REMOVE SEDIMENT.

11.BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES

ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED

TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE

CONVEYANCE CHANNEL AND RECEIVING CHANNEL.

12.WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE

TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND

STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING

CONSTRUCTION. NONERODIBLE MATERIAL SHALL BE USED FOR THE

CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED

FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS.

13.WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES

MORE THAN TWICE IN ANY SIX-MONTH PERIOD, A TEMPORARY VEHICULAR

STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIAL SHALL BE

PROVIDED.

14.ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS PERTAINING TO

WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET.

15.THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY

AFTER WORK IN THE WATERCOURSE IS COMPLETED.

16.UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE

FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA:

A. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME.

B. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES.

C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED

THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND

DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING

STREAMS OR OFF-SITE PROPERTY.

D. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED

IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION.

E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THIS

CHAPTER.

F. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH.

17.WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC

ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT

BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS

TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE, THE ROAD SURFACE

SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE

REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED

TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED

ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION SHALL

APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER

LAND-DISTURBING ACTIVITIES.

18.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE

REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE

TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE

AUTHORIZED BY THE VESCP AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED

SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL

BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND

SEDIMENTATION.

19.PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL

BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO

INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER

RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION IN

ACCORDANCE WITH THE FOLLOWING STANDARDS AND CRITERIA. STREAM

RESTORATION AND RELOCATION PROJECTS THAT INCORPORATE NATURAL

CHANNEL DESIGN CONCEPTS ARE NOT MAN-MADE CHANNELS AND SHALL BE

EXEMPT FROM ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR

NATURAL OR MAN-MADE CHANNELS:

A. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE SHALL

BE DISCHARGED DIRECTLY INTO AN ADEQUATE NATURAL OR MAN-MADE

RECEIVING CHANNEL, PIPE OR STORM SEWER SYSTEM. FOR THOSE SITES WHERE

RUNOFF IS DISCHARGED INTO A PIPE OR PIPE SYSTEM, DOWNSTREAM STABILITY

ANALYSES AT THE OUTFALL OF THE PIPE OR PIPE SYSTEM SHALL BE PERFORMED.

B. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED IN THE FOLLOWING

MANNER:

(1) THE APPLICANT SHALL DEMONSTRATE THAT THE TOTAL DRAINAGE AREA TO

THE POINT OF ANALYSIS WITHIN THE CHANNEL IS 100 TIMES GREATER THAN THE

CONTRIBUTING DRAINAGE AREA OF THE PROJECT IN QUESTION; OR

(2) (A) NATURAL CHANNELS SHALL BE ANALYZED BY THE USE OF A TWO-YEAR

STORM TO VERIFY THAT STORMWATER WILL NOT OVERTOP CHANNEL BANKS NOR

CAUSE EROSION OF CHANNEL BED OR BANKS;

(B) ALL PREVIOUSLY CONSTRUCTED MAN-MADE CHANNELS SHALL BE ANALYZED

BY THE USE OF A 10-YEAR STORM TO VERIFY THAT STORMWATER WILL NOT

OVERTOP ITS BANKS AND BY THE USE OF A TWO-YEAR STORM TO DEMONSTRATE

THAT STORMWATER WILL NOT CAUSE EROSION OF CHANNEL BED OR BANKS; AND

(C) PIPES AND STORM SEWER SYSTEMS SHALL BE ANALYZED BY THE USE OF A

10-YEAR STORM TO VERIFY THAT STORMWATER WILL BE CONTAINED WITHIN THE

PIPE OR SYSTEM.

C. IF EXISTING NATURAL RECEIVING CHANNELS OR PREVIOUSLY CONSTRUCTED

MAN-MADE CHANNELS OR PIPES ARE NOT ADEQUATE, THE APPLICANT SHALL:

(1) IMPROVE THE CHANNELS TO A CONDITION WHERE A 10-YEAR STORM WILL

NOT OVERTOP THE BANKS AND A TWO-YEAR STORM WILL NOT CAUSE EROSION

TO THE CHANNEL, THE BED, OR THE BANKS;

(2) IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE 10-YEAR

STORM IS CONTAINED WITHIN THE APPURTENANCES;

(3) DEVELOP A SITE DESIGN THAT WILL NOT CAUSE THE PRE-DEVELOPMENT PEAK

RUNOFF RATE FROM A TWO-YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS

INTO A NATURAL CHANNEL OR WILL NOT CAUSE THE PRE-DEVELOPMENT PEAK

RUNOFF RATE FROM A 10-YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS

INTO A MAN-MADE CHANNEL; OR

(4) PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT, STORMWATER

DETENTION OR OTHER MEASURES WHICH IS SATISFACTORY TO THE VESCP

AUTHORITY TO PREVENT DOWNSTREAM EROSION.

D. THE APPLICANT SHALL PROVIDE EVIDENCE OF PERMISSION TO MAKE THE

IMPROVEMENTS.

E. ALL HYDROLOGIC ANALYSES SHALL BE BASED ON THE EXISTING WATERSHED

CHARACTERISTICS AND THE ULTIMATE DEVELOPMENT CONDITION OF THE

SUBJECT PROJECT.

F. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER

DETENTION, HE SHALL OBTAIN APPROVAL FROM THE VESCP OF A PLAN FOR

MAINTENANCE OF THE DETENTION FACILITIES. THE PLAN SHALL SET FORTH THE

MAINTENANCE REQUIREMENTS OF THE FACILITY AND THE PERSON RESPONSIBLE

FOR PERFORMING THE MAINTENANCE.

G. OUTFALL FROM A DETENTION FACILITY SHALL BE DISCHARGED TO A RECEIVING

CHANNEL, AND ENERGY DISSIPATORS SHALL BE PLACED AT THE OUTFALL OF ALL

DETENTION FACILITIES AS NECESSARY TO PROVIDE A STABILIZED TRANSITION

FROM THE FACILITY TO THE RECEIVING CHANNEL.

H. ALL ON-SITE CHANNELS MUST BE VERIFIED TO BE ADEQUATE.

I. INCREASED VOLUMES OF SHEET FLOWS THAT MAY CAUSE EROSION OR

SEDIMENTATION ON ADJACENT PROPERTY SHALL BE DIVERTED TO A STABLE

OUTLET, ADEQUATE CHANNEL, PIPE OR PIPE SYSTEM, OR TO A DETENTION

FACILITY.

J. IN APPLYING THESE STORMWATER MANAGEMENT CRITERIA, INDIVIDUAL LOTS

OR PARCELS IN A RESIDENTIAL, COMMERCIAL OR INDUSTRIAL DEVELOPMENT

SHALL NOT BE CONSIDERED TO BE SEPARATE DEVELOPMENT PROJECTS. INSTEAD,

THE DEVELOPMENT, AS A WHOLE, SHALL BE CONSIDERED TO BE A SINGLE

DEVELOPMENT PROJECT. HYDROLOGIC PARAMETERS THAT REFLECT THE

ULTIMATE DEVELOPMENT CONDITION SHALL BE USED IN ALL ENGINEERING

CALCULATIONS.

K. ALL MEASURES USED TO PROTECT PROPERTIES AND WATERWAYS SHALL BE

EMPLOYED IN A MANNER WHICH MINIMIZES IMPACTS ON THE PHYSICAL,

CHEMICAL AND BIOLOGICAL INTEGRITY OF RIVERS, STREAMS AND OTHER WATERS

OF THE STATE.

L. ANY PLAN APPROVED PRIOR TO JULY 1, 2014, THAT PROVIDES FOR

STORMWATER MANAGEMENT THAT ADDRESSES ANY FLOW RATE CAPACITY AND

VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS SHALL

SATISFY THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL

OR MAN-MADE CHANNELS IF THE PRACTICES ARE DESIGNED TO (I) DETAIN THE

WATER QUALITY VOLUME AND TO RELEASE IT OVER 48 HOURS; (II) DETAIN AND

RELEASE OVER A 24-HOUR PERIOD THE EXPECTED RAINFALL RESULTING FROM THE

ONE YEAR, 24-HOUR STORM; AND (III) REDUCE THE ALLOWABLE PEAK FLOW RATE

RESULTING FROM THE 1.5, 2, AND 10-YEAR, 24-HOUR STORMS TO A LEVEL THAT IS

LESS THAN OR EQUAL TO THE PEAK FLOW RATE FROM THE SITE ASSUMING IT WAS

IN A GOOD FORESTED CONDITION, ACHIEVED THROUGH MULTIPLICATION OF THE

FORESTED PEAK FLOW RATE BY A REDUCTION FACTOR THAT IS EQUAL TO THE

RUNOFF VOLUME FROM THE SITE WHEN IT WAS IN A GOOD FORESTED

CONDITION DIVIDED BY THE RUNOFF VOLUME FROM THE SITE IN ITS PROPOSED

CONDITION, AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND

VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS AS DEFINED

IN ANY REGULATIONS PROMULGATED PURSUANT TO § 62.1-44.15:54 OR

62.1-44.15:65 OF THE ACT.

M. FOR PLANS APPROVED ON AND AFTER JULY 1, 2014, THE FLOW RATE CAPACITY

AND VELOCITY REQUIREMENTS OF § 62.1-44.15:52 A OF THE ACT AND THIS

SUBSECTION SHALL BE SATISFIED BY COMPLIANCE WITH WATER QUANTITY

REQUIREMENTS IN THE STORMWATER MANAGEMENT ACT (§ 62.1-44.15:24 ET

SEQ. OF THE CODE OF VIRGINIA) AND ATTENDANT REGULATIONS, UNLESS SUCH

LAND-DISTURBING ACTIVITIES (I) ARE IN ACCORDANCE WITH PROVISIONS FOR

TIME LIMITS ON APPLICABILITY OF APPROVED DESIGN CRITERIA IN 9VAC25-870-47

OR GRANDFATHERING IN 9VAC25-870-48 OF THE VIRGINIA STORMWATER

MANAGEMENT PROGRAM (VSMP) REGULATION, IN WHICH CASE THE FLOW RATE

CAPACITY AND VELOCITY REQUIREMENTS OF § 62.1-44.15:52 A OF THE ACT SHALL

APPLY, OR (II) ARE EXEMPT PURSUANT TO § 62.1-44.15:34 C 7 OF THE ACT.

N. COMPLIANCE WITH THE WATER QUANTITY MINIMUM STANDARDS SET OUT IN

9VAC25-870-66 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM

(VSMP) REGULATION SHALL BE DEEMED TO SATISFY THE REQUIREMENTS OF THIS

SUBDIVISION 19.

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

C10_C11_C12_C13[E&S].DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

SCALE:

SILT FENCE

NTSA SCALE:

TEMPORARY & PERMANENT SEEDING

NTSB SCALE:

TREE PROTECTION

NTSC

SCALE:

ONSITE CONCRETE WASHOUT STRUCTURE

NTSD

PERMANENT SEEDING (SEE NOTE THIS SHEET)

TEMPORARY SEEDING

PERMANENT SEEDING NOTE

SEED WITH HALF SEEDING RATE

OF AN EQUAL RATIO OF ERNMX -

114 AND ERNMX-129, OR

APPROVED EQUAL SEED MIXES.

OR APPROVED EQUAL

OR APPROVED EQUAL

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Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

X

X

B

A

B

B

A B

B

A

IMPERVIOUS COVER

DENUDED POOR CONDITION

BARREN LAND COVER

(SEE SHEET C18)

LEGEND

LIMITS OF DISTURBANCE

(FOR STORMWATER COMPUTATION

PURPOSES ONLY)

MANAGED TURF

(NONE SHOWN)

SYMBOL DESCRIPTION

A

B

HYDROLOGIC SOIL GROUP

(PER PRINCE WILLIAM

COUNTY GIS)

SWM APPLICABLE AREA NARRATIVE

THE SITE IS DEFINED BY THE PROPOSED LIMITS OF DISTURBANCE (LOD) OF APPROXIMATELY

1.5 ACRES.

ALPHA

CORPORATION

C-14.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

IMPERVIOUS COVER

LEGEND

LIMITS OF DISTURBANCE

(FOR STORMWATER COMPUTATION

PURPOSES ONLY)

MANAGED TURF

(NONE SHOWN)

SYMBOL DESCRIPTION

A

B

HYDROLOGIC SOIL GROUP

(PER PRINCE WILLIAM

COUNTY GIS)

MAWAVI ROAD

MAWAVI ROAD

X

X

B

A

B

B

A B

B

A

ALPHA

CORPORATION

C-15.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

X

X

B

A

B

B

A B

B

A

2BP

3BP

SF

SF

SF

SF

SF

SF

SCF

SCF

SCF

SCF

IMPERVIOUS COVER

DENUDED POOR CONDITION

BARREN LAND COVER

LEGEND

MANAGED TURF

(NONE SHOWN)

SYMBOL DESCRIPTION

BYPASS AREAS

(NON LOD)

LEGEND

SYMBOL DESCRIPTION

LIMITS OF DISTURBANCE

(FOR STORMWATER COMPUTATION

PURPOSES ONLY)

DRAINAGE AREA

DRAINAGE DIVIDE

D

A

B

HYDROLOGIC SOIL GROUP

(PER PRINCE WILLIAM

COUNTY GIS)

SF

SF = SHEETFLOW

SCF = SHALLOW CONCENTRATED FLOW

CF = CONCENTRATED FLOW

TIME OF CONCENTRATION

ALPHA

CORPORATION

C-16.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

X

X

2D

2BPD2UD

3D

SF

SF

SF

SF

SF

SF

SCF

SCF

SCF

SCF

CF

B

A

B

B

A B

B

AIMPERVIOUS COVER

LEGEND

LIMITS OF DISTURBANCE

(FOR STORMWATER COMPUTATION

PURPOSES ONLY)

MANAGED TURF

(NONE SHOWN)

SYMBOL DESCRIPTION

BYPASS AREAS (NON-LOD)

LEGEND

SYMBOL DESCRIPTION

DRAINAGE AREA

DRAINAGE DIVIDE

D

A

B

HYDROLOGIC SOIL GROUP

(PER PRINCE WILLIAM

COUNTY GIS)

ALPHA

CORPORATION

C-17.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

NOTE: POST-DEVELOPMENT TIMES OF

CONCENTRATION ARE ASSUMED TO

BE 6 MINUTES FOR A CONSERVATIVE

HYDROLOGIC ANALYSIS.

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

2D

2BPD2UD

3D

SF

SF

SF

SF

SF

SF

SF

SCF

SCF

SCF

SCF

CF

B

A

B

B

A B

B

A

ALPHA

CORPORATION

C-17.1.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

LEGEND

LIMITS OF DISTURBANCE

(FOR STORMWATER COMPUTATION

PURPOSES ONLY)

SYMBOL DESCRIPTION

DRAINAGE DIVIDE

8/27/249/16/2410/4/2411/1/24 jbello Text Box

Δ1 C7, C8 DELETE OPTIONS 9/3/25 JPB

Δ2 C9A, C9B DELETE OPTIONS 9/3/25 JPB

Δ3 C10, C11 DELETE OPTIONS 9/3/25 JPB

C-18.DWGN:\JOBS\DULLES\572-100-C PRWI CAMP 5 AND CARTER POND ACCESS IMPROVEMENTS\5000 CIVIL\DWGS CAMP 5\IN PROGRESS\SHEETS NICK.NAVARRO

21000 ATLANTIC BLVD, S. 400

DULLES, VA 20166 (703)450-0800

www.alphacorporation.com

WATER QUALITY COMPUTATIONS

WATER QUALITY NARRATIVE

THE SITE IS DEFINED BY THE PROPOSED LIMITS OF DISTURBANCE (LOD) OF

APPROXIMATELY 1.5 ACRES.

WATER QUALITY REQUIREMENTS

THE SITE IS SUBJECT TO THE REQUIREMENTS OF SECTION 9VAC25-870-63.A.2 OF THE

VSMP REGULATION FOR THE DEVELOPMENT ON PRIOR DEVELOPED LANDS.

WATER QUALITY COMPLIANCE

THE SITE IN ITS PRE-DEVELOPMENT CONDITIONS CONTAINS AREAS OF DENUDED

TURF COVER WHERE THE AREAS HAVE BEEN SUBJECT TO PROLONGED FOOT

TRAFFIC BY SITE USERS. GROUND IS COMPACTED IN THESE AREAS AND IT IS

CONSIDERED IMPERVIOUS COVER PER 9VAC25-870-10, DEFINITION OF IMPERVIOUS

COVER. IN POST-DEVELOPMENT CONDITION, THE WORK PROPOSES TO ESTABLISH

GOOD CONDITION MANAGED TURF LAND COVER IN THESE AREAS VIA AMENDING

ORGANIC MATERIAL, TILLING, AND AERATION OF THE FIRST 6 TO 10 INCHES OF THE

TOPSOIL.

THE OWNER SHALL BE RESPONSIBLE FOR MAINTENANCE OF THE MANAGED TURF

COVER IN GOOD CONDITION, PER SECTION 9VAC25_870-112.A. A MAINTENANCE

AGREEMENT IS NOT REQUIRED TO BE SUBMITTED TO DEQ.

SEE COMPLIANCE COMPUTATIONS ON THIS SHEET.

EXISTING LAND COVER NARRATIVE

PER SECTION 9VAC25-870-66.E AND F, THE APPLICANT REQUESTED TO

CHARACTERIZE…