20240226_2023-0056_Approved_Sheets(2).pdf

PDF 31 MB Posted Aug 26, 2025

Attached to: ROADWAY & SITEWIDE IMPROVEMENTS Federal contract opportunity
Solicitation number: 70FA5025R00000012
Issued by: Federal Emergency Management Agency National Community Section

About this file

Written by GovTribe AI · Aug 26, 2025

This document is a comprehensive set of civil engineering and demolition plans for the Mount Weather Emergency Operations Center (MWEOC) FM Maintenance 300-400 Demolition project. The project involves selective demolition of multiple buildings (B310, B315, B320, B400, B408, B410, B714A) and associated site infrastructure across two contract line items (CLINs), including complete building removal, utility disconnections, underground tank removals, and site restoration. The demolition work encompasses electrical, mechanical, and utility systems, with specific requirements for environmental compliance, including proper handling of registered underground fuel storage tanks and adherence to Virginia Department of Environmental Quality (DEQ) stormwater management regulations.

The project site is located at 19844 Blue Ridge Mountain Road in Bluemont, Virginia, with a total disturbed area of 4.43 acres. The owner is the U.S. Department of Homeland Security, specifically the Federal Emergency Management Agency (FEMA), with Gregory Eisenhauer from the Engineering Branch as the primary contact. The demolition plans include detailed site grading, erosion control measures, utility disconnection protocols, and post-demolition site stabilization using specific seeding and mulching techniques. The project emphasizes environmental protection, including managing potential naturally occurring asbestos, maintaining site drainage, and ensuring proper sediment control during and after demolition activities.

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20250814 Roadway Sitewalk Notes.docx	DOCX document	Aug 28, 2025
Solicitation questions and answers - A00001.pdf	PDF	Aug 28, 2025
Attach 8 - 2025-0102_20250827_Approved_ESC_SWM_Sheets.pdf	PDF	Aug 28, 2025
Attach 3 - MWFS Menu.pdf	PDF	Aug 26, 2025
2020-0097_20241125_Approved_ESC_SWM_Narrative_Calcs.pdf	PDF	Aug 26, 2025
2023-0056 Plan Submission Checklist 2023-04-03.pdf	PDF	Aug 26, 2025
Attach 7 - Excavation permit request Form.pdf	PDF	Aug 26, 2025
Attach 6 - 250821 SOW MWEOC Site Wide Infrastructure FY25 with B127 Updated.pdf	PDF	Aug 26, 2025
Solicitation questions and answers - A00001.pdf	PDF	Aug 26, 2025
Attach 4 - MW Outage SHEET blank.pdf	PDF	Aug 26, 2025
Attach 2 - Nutrient credits.pdf	PDF	Aug 26, 2025
70FA5025R00000012 A0001.pdf	PDF	Aug 26, 2025
2020-0097_20241125_Approval_Combined_ESC_SWM_Modification_No._1.pdf	PDF	Aug 26, 2025
Attach 1 - 250821 Bid Form MWEOC Site Wide Infrastructure.pdf	PDF	Aug 26, 2025
Volume 4-Specifications (3-5-2025).pdf	PDF	Aug 1, 2025
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Volume 3 Specifications (3-5-2025).pdf	PDF	Aug 1, 2025
Volume 2-Specifications (3-5-2025).pdf	PDF	Aug 1, 2025
B127 Roof Replacement As-Builts.pdf	PDF	Aug 1, 2025
70FA5025R00000012 PROJECT ROADWAYS.pdf	PDF	Aug 1, 2025
B420 Demolition and Parking Drawings IFC 3-5-2025.pdf	PDF	Aug 1, 2025
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Volume 5 Specifications (3-5-2025).pdf	PDF	Aug 1, 2025
Volume 1 Specifications (3-5-2025).pdf	PDF	Aug 1, 2025

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MOUNT WEATHER EMERGENCY OPERATIONS CENTER

FM MAINTENANCE 300-400 DEMOLITION

MOUNT WEATHER, VIRGINIA 20135-2006

FEBRUARY 20, 2024

VICINITY MAP

SCALE: 1" = 5000'

PROJECT LOCATION

BLU

E R

GE M

OUNTAIN

OAD

INTERSTATE

TO 7

DEQ PROJECT#: 2023-0056

GKT

SKS

SMS

COVER SHEET

G-001

SMF

DEQ SUBMITTAL

PROJECT NO:

DRAWN BY:

EPS NO: 9630

B300-400 DEMOLITION

ISSUE BLOCK

M O

U N

T W

Y O

N S

OFSHEET

WORK ORDER NO: 864554

218151.006

APPROVED BY:

M O

U N

T W

, V

-2

N at io nw id e

D riv e | L yn ch bu rg

, V A

w ile yw ils on .c om

E m pl oy ee -O w ne d

UNCLASSIFIED//FOR OFFICIAL USE ONLY

CHECKED BY:

-4

O N

SHEET TITLE:

DEQ APPROVAL OF THIS STORMWATER MANAGEMENT PLAN FOR MOUNT WEATHER EMERGENCY OPERATIONS CENTER FM MAINTENANCE 300-400 DEMOLITION (2023-0XXX) AND RELATED CONSTRUCTION GENERAL PERMIT APPROVAL COVERS THE CONSTRUCTION PHASES DETAILED IN THIS PLAN SET. ANY LAND DISTURBING ACTIVITIES THAT DEVIATE FROM THE DEVELOPMENT OUTLINED ON SHEETS CS101-CS105 IN THIS PLAN SET SHALL NOT BE CONSTRUCTED UNTIL A PLAN MODIFICATION HAS BEEN SUBMITTED TO DEQ AND DEQ HAS PROVIDED APPROVAL.

LIST OF DRAWINGS

SHEET NUMBER SHEET TITLE

G-001 COVER SHEET

G-002 OVERALL PLAN

C-001 CIVIL NOTES, ABBREVIATIONS, AND LEGENDS

C-002 EROSION AND SEDIMENT CONTROL NOTES

CE101 EXISTING CONDITIONS PLAN - CLIN 001

CE103 B400 EXISTING CONDITIONS PLAN - CLIN 001

CE104 B408, B410 & B410A EXISTING CONDITIONS PLAN - CLIN 002

CE105 B714A EXISTING CONDITIONS PLAN - CLIN 002

CD101 DEMOLITION PLAN - CLIN 001

CD102 DEMOLITION PLAN - CLIN 002

CD103 B400 DEMOLITION PLAN - CLIN 001

CD104 B408, B410 & B410A DEMOLITION PLAN - CLIN 002

CD105 B714A DEMOLITION PLAN - CLIN 002

CS101 SITE PLAN - CLIN 001

CS102 SITE PLAN - CLIN 002

CS103 B400 SITE PLAN - CLIN 001

CS104 B408, B410 & B410A SITE PLAN - CLIN 002

CS105 B714A SITE PLAN - CLIN 002

CT102 PAVEMENT MARKING PLAN - CLIN 002

CT103 B400 PAVEMENT MARKING PLAN - CLIN 001

CT104 B408, B410 & B410A PAVEMENT MARKING PLAN - CLIN 002

C-501 CIVIL DETAILS

C-502 EROSION AND SEDIMENT CONTROL DETAILS

SITE INFORMATION:

SITE ADDRESS: 19844 BLUE RIDGE MOUNTAIN RD., BLUEMONT, VA 20135

TAX MAP ID: 33 A 15

PARCEL ACCOUNT: 677368855000

DISTURBED AREA: 4.43 AC

OWNER INFORMATION:

OWNER: U.S. DEPARTMENT OF HOMELAND SECURITY

CONTACT NAME: GREGORY EISENHAUER, ENGINEERING BRANCH

PHONE NUMBER: 540-542-2159

EMAIL: GREGORY.EISENHAUER@FEMA.DHS.GOV

...........APPROVAL BLOCK

DEPT. OF ENVIRONMENTAL QUALITY

DATE

DEQ PLAN # 2023 - 0056

02/20/2024 abq64963 Approval Stamp - NRO abq64963 Text Box 2/26/2024 abq64963 mking

1630 1635

17041702

SDSD

X X

IIIIIIIIIIIIIIIIIIIIIIII

IIIIII

I I I

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

III

LandingLights

Entrance

Post

Ref

Wind Sock

Post

Ref

Breather

Vault Water Faucet

Faucet Water

Abdn

Kero Tank

Post

Wind Sock

Safety marker marker Safety marker

Safety marker Safety marker Safety marker

Safety marker Safety marker Safety

Circuit breaker

Post

BALLOONSHED DRIVE

SUNRISE DRIVE

PK NAIL B

N=70

16.

E=11

.31

ELE

V.=1

.53

24' SWING

GATE

24' SWING

GATECA

E G

N =7071026.055

E=11655461.736

ELEV=1648.78

P-K N

AIL B1

N =7070708.810

E=11655155.730

ELEV=1647.40

P-K N

AIL C

PROPOSED BUILDING (#602)

FF UPPER LEVEL 1648.00

PROPOSED BUILDING (#602)

FF BOTTOM LEVEL 1632.00

TREE LINE

RIPRAP

RETAINING

ALL (TYP)

4" SOLID

HITE

LINE (TYP)

METAL

GUARDRAIL

METAL

GUARDRAIL

TREE

LINE

1631.20

1629.7

1629.61

1628.11

1625.61

1627.79

RETAINING

ALL (REFER

TO LA)

18.82'

R ock(s)

Rock(s)

R oc k( s)

Rock(s)

R ock(s)

Rock(s)

R ock(s)

Rock(s)

R ock(s)

Rock(s)

R ock(s)

Rock(s)

Roc k(s

Rock(s)

R ock(s)

Rock(s)

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Sign Sign

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GuyGuy

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Rock(s)

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Rock(s)

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Rock(s)

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R oc k( s)

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Guy

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Guy

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Rock(s)

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Guy

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Sign Sign

Rock(s)

Roc k(s

Rock(s)

Rock(s)Rock(s)

Rock(s)

Rock(s) Rock(s)

Rock(s)

Guy

LandingLights

Entrance

Post

Ref

Sign

Wind Sock

Sign

PostSign

Post

Ref

Sign

Ref

Sign

Breather

Vault Water Faucet

Faucet Water

Abdn

Kero Tank

Post

Wind Sock

Safety marker marker Safety marker

Safety marker Safety marker Safety marker

Safety marker Safety marker Safety

Circuit breaker

Guy

Post

75 10 1.

BLD

BLD 713

BLD 710

BLD 720

BLD 604

BLD 702

BLD

D 44

BLD

D 20

BLD

BLD 105

BLD

D 11

BLD

D 10

BLD

D 12

BLD

618 BLD 602

BLD 921

BLD 901

III

I I I

III

I I I I I I

I I I

ASBESTOS

WASTE

STORAGE

Y M

40 CY CONST.

DUMPSTER

40 CY RECYCL.

DUMPSTER

x x x x x x x x x x x x xx x x x x x x x x x x x x x x x x x x x x x x x

III

I I I

Y D

U M

II I

III

I I I

III

40 CY

DUMPSTER

TRASH

COMPACTOR

TC-1

WOODS

18" HONEY LOCUST

10568 1728.542

10590 1729.845

10623 1729.808

TSP

10652 1728.953

10653 1729.947

TSP

30" POPLAR

I I I

III

I I I

III

I I I

III

I I I

I I

III

I I I

III

I I I

III

I I I

IIII I I

WVWVWV

o o o o

10587 1729.149

EMH

10588 1729.739

TMH

I I I

III

10588 1729.739

TMH

1711.424

BOL

1711.417

BOL

x x x x x xx x x

BM 9858

EL 1716.04

I I I

III

I I I

III

I I I

I IIIII

I I I

III

I I I

III

II I

STEP

10191 1723.175

STEP

10192 1723.120

STEP

10193 1723.081

STEPSTEP

10194 1721.893

STEPSTEP

10195 1722.017

STEP

10196 1723.110

STEP

10245 1720.180

STEP

10246 1720.214

STEP

10247 1721.889

STEP

10330 1720.092

STEPSTEP

10331 1720.097

STEP

10332 1723.126

STEP

10333 1723.057

STEP

I I I

III

I I I

III

I I I

I I IIII

I I I

STDI 9394

STDI 9275

SUNRISE DRIVE

FFE 1737.52

GB4

X=11657029.1432Y=7071521.7012

CANOPY

R ock(s)

Rock(s)

1724.145

USMB

1709.782 C301

1724.145

USMB

1709.782 C301

" S

Rock(s)

BLD

BLD 911

BLD

N =7071078.546

E=11655246.717

ELEV=1647.97

P-K N

AIL B2

30' SLIDING GATE

PAVED DITCH

911707

1724.145

USMB

STA2

1709.782 C301

25 16

35 1645

X X

SDMH TOP 1456.5'

III

WOODS

18" HONEY LOCUST

10568 1728.542

10590 1729.845

10623 1729.808

TSP

10652 1728.953

10653 1729.947

TSP

30" POPLAR

I I I

III

I I I

III

I I I

III

I I I

I I

III

I I I

III

I I I

III

I I I

III

IIIIII

III

1724.145

USMB

1724.145

USMB

ACC

25 1725

6" TC

22D

29C

9D22D

28B

43B

43C 40D

88C 40D

40E

59C

40E

43B

43C

40D

40E

43C 88C

B315

CLIN 001

COMPLETE DEMOLITION

B320

CLIN 001

COMPLETE DEMOLITION

B410

CLIN 002

SELECTIVE DEMOLITION

B310

CLIN 002

COMPLETE DEMOLITION

B408A

CLIN 002

COMPLETE DEMOLITION

B714A

CLIN 002

COMPLETE DEMOLITION

B400

CLIN 001

COMPLETE DEMOLITION

B320A

CLIN 001

COMPLETE DEMOLITION

B410A

CLIN 002

SELECTIVE DEMOLITION

B408

CLIN 002

COMPLETE DEMOLITION

GKT

CAT

SMS

OVERALL PLAN

G-002

SMF

PROJECT NO:

DRAWN BY:

EPS NO: 9630

B300-400 DEMOLITION

ISSUE BLOCK

M O

U N

T W

Y O

N S

OFSHEET

WORK ORDER NO: 864554

218151.006

APPROVED BY:

M O

U N

T W

, V

-2

N at io nw id e

D riv e | L yn ch bu rg

, V A

w ile yw ils on .c om

E m pl oy ee -O w ne d

UNCLASSIFIED//FOR OFFICIAL USE ONLY

CHECKED BY:

-4

O N

SHEET TITLE:

ERODIBILITY FACTORS, K

0.23 AND LOWER - LOW ERODIBILITY

0.23 TO 0.36 - MODERATE ERODIBILITY

0.36 AND UP - HIGH ERODIBILITY

HYDROLOGIC SOIL GROUPS, HSG

A - LOW RUNOFF POTENTIAL, SOILS HAVING HIGH

INFILTRATION RATES EVEN WHEN

THOROUGHLY WETTED.

B - SOILS HAVING MODERATE INFILTRATION RATES

WHEN THOROUGHLY WETTED.

C - SOILS HAVING SLOW INFILTRATION RATES WHEN

THOROUGHLY WETTED.

D - HIGH RUNOFF POTENTIAL, SOILS HAVING VERY

SLOW INFILTRATION RATES WHEN

THOROUGHLY WETTED.

SOILS

9D - CATOCTIN-MYERSVILLE VERY STONY SILT LOAMS

15-45 PERCENT SLOPES

WELL DRAINED

K FACTOR - 0.28

HYDROLOGIC SOILS GROUP - B

22D - LEW VERY STONY SILT LOAM

15-30 PERCENT SLOPES

WELL DRAINED

K FACTOR - 0.17

HYDROLOGIC SOILS GROUP - B

28B - MYERSVILLE-CATOCTIN SILT LOAMS

3-8 PERCENT SLOPES

WELL DRAINED

K FACTOR - 0.49

HYDROLOGIC SOILS GROUP - B

29C - MYERSVILLE-CATOCTIN VERY STONY SILT LOAMS

8-15 PERCENT SLOPES

WELL DRAINED

K FACTOR - 0.49

HYDROLOGIC SOILS GROUP - B

40D - CATOCTIN CHANNERY SILT LOAM

15-25 PERCENT SLOPES

WELL DRAINED

K FACTOR - 0.24

HYDROLOGIC SOILS GROUP - B

* IF A SOIL IS ASSIGNED TO A DUAL HYDROLOGIC GROUP (A/D, B/D, OR C/D), THE FIRST LETTER IS FOR DRAINED AREAS AND THE SECOND IS FOR UNDRAINED AREAS. ONLY THE SOILS THAT IN THEIR NATURAL CONDITION ARE IN GROUP D ARE ASSIGNED TO DUAL CLASSES.

SOILS DATA SOURCE

NATURAL RESOURCES CONSERVATION SERVICE

(NRCS) WEB SOIL SURVEY, PROVIDED BY THE

UNITED STATES DEPARTMENT OF AGRICULTURE

40E - CATOCTIN CHANNERY SILT LOAM

25-45 PERCENT SLOPES

WELL DRAINED

K FACTOR - 0.24

HYDROLOGIC SOILS GROUP - B

43B - MYERSVILLE-CATOCTIN COMPLEX

2-7 PERCENT SLOPES

WELL DRAINED

K FACTOR - 0.43

HYDROLOGIC SOILS GROUP - B

43C - MYERSVILLE-CATOCTIN COMPLEX

7-15 PERCENT SLOPES

WELL DRAINED

K FACTOR - 0.43

HYDROLOGIC SOILS GROUP - B

59C - FLAIRMONT VERY FLAGGY LOAM

7-15 PERCENT SLOPES, VERY RUBBLY

MODERATELY WELL DRAINED

K FACTOR - 0.10

HYDROLOGIC SOILS GROUP - B

88C - LEW CHANNERY SILT LOAM

7-15 PERCENT SLOPES, STONY

SOMEWHAT POORLY DRAINED

K FACTOR - 0.24

HYDROLOGIC SOILS GROUP - B

02/20/2024

PROJECT NO:

DRAWN BY:

EPS NO: 9630

B300-400 DEMOLITION

ISSUE BLOCK

M O

U N

T W

Y O

N S

OFSHEET

WORK ORDER NO: 864554

218151.006

APPROVED BY:

M O

U N

T W

, V

-2

N at io nw id e

D riv e | L yn ch bu rg

, V A

w ile yw ils on .c om

E m pl oy ee -O w ne d

UNCLASSIFIED//FOR OFFICIAL USE ONLY

CHECKED BY:

-4

O N

SHEET TITLE:

DESIGN EXISTING

1. ALL WORK MUST BE PERFORMED IN STRICT COMPLIANCE WITH THE MOST CURRENT APPLICABLE

FEDERAL, STATE , AND LOCAL LAWS AND REGULATIONS, INCLUDING BUT NOT LIMITED TO,

ENVIRONMENTAL PROTECTION AGENCY (EPA), OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION

(OSHA), VIRGINIA OCCUPATIONAL AND SAFETY HEALTH COMPLIANCE PROGRAM (VOSH

ENFORCEMENT), VIRGINIA OVERHEAD HIGH VOLTAGE LINE SAFETY ACT, NATIONAL EMISSIONS

STANDARDS FOR HAZARDOUS AIR POLLUTANTS (NESHAPS), AND NATIONAL INSTITUTE OF

OCCUPATIONAL SAFETY AND HEALTH (NIOSH).

2. WHEN DURING THE COURSE OF CONSTRUCTION, ANY OBJECT OF AN UNUSUAL NATURE IS

ENCOUNTERED, CEASE WORK IN THAT AREA AND IMMEDIATELY NOTIFY THE COR.

3. DRAINAGE STRUCTURES MUST BE CONSTRUCTED IN ACCORDANCE WITH THE CURRENT VIRGINIA

DEPARTMENT OF TRANSPORTATION DESIGN STANDARDS AND SPECIFICATIONS.

4. SUITABLE SOIL, CONCRETE, AND ROCK CAN BE DISPOSED ONSITE IN THE EROSION CONTROL STOCKPILE OR IN AREAS DIRECTED BY THE COR. TOPSOIL MUST BE STOCKPILED WITHIN THE LIMITS OF CONSTRUCTION. UNSUITABLE SOILS MUST BE LOCATED AND SPREAD ONSITE WHERE DIRECTED BY THE COR. TOPSOIL AT THIS LOCATION WILL BE EXCAVATED, STOCKPILED, AND REAPPLIED OVER THE UNSUITABLE SOIL. CONCRETE AND ROCKS MUST BE BROKEN INTO PIECES NOT LARGER THAN EIGHT (8) INCHES AND THERE MUST NOT BE ANY EXPOSED REINFORCING STEEL. ALL OTHER DEBRIS MATERIAL AND UNSUITABLE SOILS MUST BE HAULED FROM THE SITE IN ACCORDANCE WITH ALL LAWS/REGULATIONS. ESTABLISH TURF AND APPLY EROSION AND SEDIMENT CONTROL MEASURES.

PROVIDE AN EROSION AND SEDIMENT CONTROL PLAN FOR ALL STOCKPILES AND ANY OFFSITE

DISPOSAL AREAS.

5. GRADING, EXCAVATING, AND CONSTRUCTION OF THE PROJECT MUST NOT COMMENCE UNTIL THE APPROPRIATE EROSION AND SEDIMENT CONTROL MEASURES ARE IN PLACE AS SPECIFIED ON THE DEQ APPROVED E&S PLAN. WHILE NO NATURALLY OCCURRING ASBESTOS HAS BEEN IDENTIFIED IN THE SUBSURFACE SOIL/ROCK LAYERS BELOW THE SITE DURING THE GEOTECHNICAL INVESTIGATION.

IF IT IS UNCOVERED IN THE FIELD, IMPLEMENT ALL BEST PRACTICES FOR EARTHWORK

CONSTRUCTION IN/AROUND NATURALLY OCCURRING ASBESTOS, EQUIPMENT AND PERSONNEL

DECONTAMINATION ALONG WITH AIR MONITORING AND DISPOSAL PRACTICES AS OUTLINED IN THE

NATURALLY OCCURRING ASBESTOS COMPLIANCE PLAN DEVELOPED BY ECS MID-ATLANTIC, LLC

DATED APRIL 7, 2021.

6. WITH THE EXCEPTION OF THE EROSION AND SEDIMENT CONTROL AND STORMWATER PLAN

APPROVAL, OBTAIN ALL NECESSARY PERMITS AND LICENSES REQUIRED BY THE STATE OF VIRGINIA

OR OTHER GOVERNING AGENCIES INVOLVED UNDER THIS CONTRACT.

7. APPROPRIATE FENCING AND BARRICADES MUST BE USED WHEN WORK OCCURS NEAR PEDESTRIAN

WALKWAYS.

8. DIMENSIONS SHOWN AT CURB ARE TO FACE OF CURB.

9. PROVIDE POSITIVE DRAINAGE AWAY FROM STRUCTURES AT ALL GRADED AREAS.

10. IF PORTABLE TOILETS ARE NECESSARY FOR THE CONSTRUCTION OF THE PROJECT, LOCATE A MINIMUM OF 25 FEET AWAY FROM THE NEAREST STORMWATER FEATURE (INLET, SWALE, POND, ETC.).

LOCATION OF PORTABLE TOILETS TO BE APPROVED BY COR.

11. A SMOOTH GRADE MUST BE MAINTAINED FROM EDGE OF EXISTING PAVEMENT TO PROPOSED CURB

AND GUTTER AND/OR PROPOSED PAVEMENT TO PRECLUDE THE FORMING OF FALSE GUTTERS

AND/OR THE PONDING OF ANY WATER ON THE PAVEMENT. REMOVE AND RECONSTRUCT EXISTING

PAVEMENT AND/OR CURB AS DICTATED BY FIELD CONDITIONS TO PROVIDE POSITIVE DRAINAGE AT

TIE-IN-POINTS.

12. ALL SOLID WASTE, HAZARDOUS WASTE, AND HAZARDOUS MATERIALS MUST BE MANAGED IN

ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL ENVIRONMENTAL REGULATIONS.

13. PROTECT ALL EXISTING MONITORING WELLS ON SITE.

14. AIR QUALITY REGULATIONS: THE FOLLOWING SECTIONS OF THE CODE OF VIRGINIA AND VIRGINIA

ADMINISTRATIVE CODE ARE APPLICABLE:

· ASPHALT PAVING OPERATIONS (9 VAC 5-45-780 ET. SEQ.)

· FUGITIVE DUST AND EMISSIONS CONTROL (9 VAC 5-50-60 ET. SEQ.)

· OPEN BURNING RESTRICTIONS (9 VAC 5-130)

15. DO NOT DISTURB ANY ANTENNA GUY WIRES OR GUY WIRE FOUNDATIONS DURING THE COURSE OF

CONSTRUCTION.

16. COORDINATE ALL WORK WITH THE FY24 ROAD REPAIR PROJECT.

17. ALL ROADS MUST BE ACCESSIBLE AT ALL TIMES. ONE LANE IS PERMITTED DURING WORKING HOURS WITH FLAGGERS REQUIRED. TWO WAY TRAFFIC IS REQUIRED DURING NON-DUTY HOURS. PROTECT

ANY GROUND OPENINGS WITH STEEL PLATES.

18. SEE SHEET E-001 FOR ELECTRICAL AND TECHNOLOGY DEMOLITION NOTES.

19. PROVIDE DEQ CLOSURE REPORT FOR EACH REGISTERED UNDERGROUND STORAGE TANK AFTER

CLOSURE IS COMPLETE.

1. A MINIMUM COVER OF THREE (3) FEET IS REQUIRED OVER PROPOSED LINES UNLESS SHOWN

OTHERWISE IN DESIGN PROFILE.

2. ALL EXISTING UTILITIES MAY OR MAY NOT BE SHOWN IN THEIR EXACT LOCATION.

3. VERIFY ALL UTILITY LOCATIONS PRIOR TO EXCAVATION.

4. REPAIR ANY ACTIVE UTILITIES DAMAGED DURING CONSTRUCTION AND NOTIFY THE COR OF THE

DAMAGE.

5. LENGTHS OF LINES INDICATED ON THE DRAWINGS FOR UTILITY SYSTEMS ARE APPROXIMATE ONLY.

DETERMINE THE EXACT AMOUNT OF PIPING REQUIRED TO FURNISH A COMPLETE WORKING SYSTEM IN

ACCORDANCE WITH THE INTENT OF THE DRAWINGS.

6. SUBMIT AN EXCAVATION REQUEST A MINIMUM OF SEVEN (7) DAYS PRIOR TO DIGGING; MOUNT

WEATHER PERSONNEL WILL MARK UNDERGROUND UTILITIES UPON RECEIPT OF THE REQUEST.

7. SUBMIT A UTILITY OUTAGE REQUEST A MINIMUM OF SEVEN (7) DAYS IN ADVANCE OF ANY UTILITY

OUTAGE FOR ALL UTILITIES THAT AFFECT BUILDINGS THAT WILL REMAIN IN SERVICE.

8. MAINTAIN UTILITY MARKINGS PROVIDED BY MWEOC THROUGH EXECUTION OF THE PROJECT.

9. PHASE CONSTRUCTION IN ORDER TO MINIMIZE DISRUPTION TO MWEOC UTILITIES DURING

INSTALLATION, DEMOLITION, AND REMOVAL. COORDINATE WITH MWEOC DURING ALL UTILITY

DISCONNECTION AND DEMOLITION. ALL TRANSITION AND RECONNECTION OF UTILITIES MUST BE

COORDINATED WITH OWNER. COORDINATE FINAL TRANSITION AND RECONNECTION PLAN AFTER

CONTRACT AWARD. THIS WORK MAY BE REQUIRED TO BE COMPLETED AFTER HOURS.

CONCRETE

ASPHALT REMOVAL

LIST OF ABBREVIATIONS

ACRE AC

BACK OF CURB BC

BUILDING BLD

COMMUNICATION COMM

CONTRACTING OFFICE REPRESENTATIVE COR

CORRUGATED METAL PIPE CMP

CUBIC YARD CY

DETENTION BASIN DB

DIAMETER DIA

DROP INLET DI

DUCTILE IRON PIPE DIP

EASTING E

EDGE OF CONCRETE EOC

EDGE OF PAVEMENT EOP

ELECTRICAL ELEC

ELECTRICAL MANHOLE EMH

ELEVATION ELEV

EROSION AND SEDIMENT E&S

EXISTING EX

FEET FT

FINISHED FLOOR FF

FIRE HYDRANT FH

HANDHOLE HH

HORIZONTAL BEND HB

INCHES IN

INSIDE DIAMETER ID

INVERT INV

LINEAR FOOT LF

MANHOLE MH

MAXIMUM MAX

MINIMUM MIN

MONUMENT MON

MOUNT WEATHER EMERGENCY MWEOC

OPERATIONS CENTER

NORTHING N

ON CENTER OC

OUTSIDE DIAMETER OD

POLYVINYL CHLORIDE PVC

POUNDS LBS

POUNDS PER SQUARE INCH PSI

REINFORCED CONCRETE PIPE RCP

SANITARY SEWER SS

STANDARD STD

STATION STA

STEAM STM

STORM DRAIN SD

STORM MANHOLE SMH

TOP OF CURB TC

TRAVERSE TRV

TYPICAL TYP

VERTICAL BEND VB

VIRGINIA DEPARTMENT OF VDOT

TRANSPORTATION

LEGENDGENERAL CIVIL NOTES

GENERAL UTILITY NOTES

GRAVEL REMOVAL

CONCRETE REMOVAL

1. THIS TOPOGRAPHIC SURVEY WAS COMPLETED UNDER THE DIRECT AND RESPONSIBLE

CHARGE OF, BRIAN S HARVEY, LS FROM AN ACTUAL GROUND SURVEY MADE UNDER MY

SUPERVISION; THAT THE IMAGERY AND/OR ORIGINAL DATA WAS OBTAINED ON JULY 20 THRU

AUGUST 7, 2020; AND THAT THIS PLAT, MAP, OR DIGITAL GEOSPATIAL DATA INCLUDING

METADATA MEETS MINIMUM ACCURACY STANDARDS UNLESS OTHERWISE NOTED.

2. SURVEY CONDUCTED BY WILEY|WILSON, JULY 20 THRU AUGUST 7, 2020. VERTICAL CONTROL:

NAVD 88; HORIZONTAL CONTROL: NAD 83 VIRGINIA STATE PLANE COORDINATE SYSTEM,

NORTH ZONE, U.S. SURVEY FOOT.

3. ALL EXISTING UNDERGROUND UTILITY LOCATIONS AS SHOWN ON THESE PLANS ARE

APPROXIMATE AND MAY NOT REPRESENT ALL UNDERGROUND UTILITIES OR SERVICE LINES.

SOURCE OF EXISTING UTILITY MAPPING: UTILITY LOCATIONS ARE BASED ON QUALITY LEVEL

"B" AS DEFINED BY ASCE STANDARD 38-02 "STANDARD GUIDELINE FOR THE COLLECTION AND

DEPICTION OF EXISTING SUBSURFACE UTILITY DATA". VERIFY THE EXACT LOCATION, DEPTH, SIZE, AND TYPE OF UTILITIES SHOWN AND NOTIFYING ENGINEER OF DISCREPANCIES.

DAMAGE TO PROPERTY, UTILITIES, OR PHYSICAL IMPROVEMENTS ARE AT NO ADDITIONAL

COST TO THE GOVERNMENT.

4. MISS UTILITY WAS NOT CONTACTED PRIOR TO TOPOGRAPHIC SURVEY.

5. PROPERTY LINE INFORMATION IS BASED ON CORRELATION OF FIELD MEASUREMENTS WITH

INFORMATION FOUND IN VARIOUS PLATS AND DEEDS OF RECORD. NO BOUNDARY SURVEY

WAS PERFORMED.

6. THIS SURVEY WAS PREPARED WITHOUT THE BENEFIT OF A TITLE REPORT AND IS NOT

INTENDED TO SHOW ALL EASEMENTS THAT MAY AFFECT THE PROPERTY.

7. ALL PROPERTY PINS DISTURBED BY THE WORK SHOWN ON THESE CONSTRUCTION

DOCUMENTS MUST BE REPLACED BY A VIRGINIA LICENSED LAND SURVEYOR.

8. THE EXISTENCE OF HAZARDOUS WASTE, VEGETATED WETLANDS, OR TIDAL WETLANDS WAS

NEITHER INVESTIGATED NOR CONFIRMED DURING THE PERFORMANCE OF THIS SURVEY.

9. THE FIELD SURVEY PERFORMED ONLY APPLIES TO FEATURES SHOWN WITHIN THE LIMITS OF

FIELD SURVEY BOUNDARY SHOWN ON EXISTING CONDITION SHEETS. ALL OTHER FEATURES

SHOWN OUTSIDE THE BOUNDARY WAS OBTAINED BY USE OF GIS/OWNER SUPPLEMENTAL

DATA.

GENERAL SURVEY NOTES

BENCHMARK

CONTROL POINT

CONTROL POINT - NAIL SET

DOWNSPOUT

ELECTRIC MANHOLE

LIGHT POLE

JUNCTION BOX

GUY WIRE

TRANSFORMER

WATER MANHOLE

FIRE HYDRANT

WATER VALVE

YARD HYDRANT

GAS MANHOLE

COMMUNICATIONS MANHOLE

SIGN

CARD READER

BOLLARD

FLAG POLE

FINISHED FLOOR ELEVATION

VENT

TREE

BUSH

ROOF OVERHANG

SOIL DELINEATION

EDGE OF PAVEMENT

GUARD RAIL

FENCELINE

TREELINE

MAJOR CONTOURS

MINOR CONTOURS

UNDERGROUND COMMUNICATIONS

UNDERGROUND FUEL LINE

UNDERGROUND FIRE ALARM

UNDERGROUND NATURAL GAS

UNDERGROUND ELECTRIC

STORM LINE

WATER LINE

DITCH

UTILITY DEMOLOTION

LIMITS OF CONSTRUCTION

LIMITS OF FIELD SURVEY

DEMOLITION

STRUCTURE/TREE DEMOLITION

DROP INLET

STORM MANHOLE

I I I I I I xx

UGT

UGE

MULCHING AND SEEDING

GKT

CAT

SMS

CIVIL NOTES, ABBREVIATIONS,

AND LEGENDS

C-001

SMF

BUILDING DEMOLITION

GRAVEL

LFS

PROJECT NO:

DRAWN BY:

EPS NO: 9630

B300-400 DEMOLITION

ISSUE BLOCK

M O

U N

T W

Y O

N S

OFSHEET

WORK ORDER NO: 864554

218151.006

APPROVED BY:

M O

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UNCLASSIFIED//FOR OFFICIAL USE ONLY

CHECKED BY:

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SHEET TITLE:

1. PERMANENT OR TEMPORARY SOIL STABILIZATION MUST BE APPLIED TO DENUDED AREA WITHIN

SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY

STABILIZATION MUST 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

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

RESPONSE: CONTRACTOR MUST ADHERE TO THESE STANDARDS.

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

RESPONSE: ANY STOCKPILES OF SOIL ON SITE MUST BE STABILIZED ACCORDINGLY. BORROW AREAS MAY

BE ON SITE OR OFF SITE AND WILL BE UNDER A SEPARATE PERMIT ONCE IDENTIFIED.

3. A PERMANENT VEGETATIVE COVER MUST BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE

PERMANENTLY STABILIZED. PERMANENT VEGETATION MUST NOT BE CONSIDERED ESTABLISHED

UNTIL A GROUND COVER IS ACHIEVED THAT, IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL

INHIBIT EROSION.

RESPONSE: SEE THE EROSION AND SEDIMENT CONTROL NOTES, NARRATIVE, AND PLAN FOR

STABILIZATION MEASURES.

4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT MUST BE CONSTRUCTED AS A FIRST STEP IN ANY LAND-DISTURBING ACTIVITY AND MUST BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE.

RESPONSE: SEE THE EROSION AND SEDIMENT CONTROL NOTES, NARRATIVE, AND PLAN FOR SEDIMENT

BASINS, TRAPS, AND BARRIERS.

5. STABILIZATION MEASURES MUST BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES, AND

DIVERSIONS IMMEDIATELY AFTER INSTALLATION.

RESPONSE: SEE THE EROSION AND SEDIMENT CONTROL NOTES, NARRATIVE, AND PLAN FOR

STABILIZATION OF EARTHEN STRUCTURES.

6. SEDIMENT TRAPS AND SEDIMENT BASINS MUST BE DESIGNED AND CONSTRUCTION BASED UPON THE

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

A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP MUST BE 143 CUBIC YARDS PER ACRE

OF DRAINAGE AREA AND THE TRAP MUST 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 MUST BE CONTROLLED BY A SEDIMENT

BASIN. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN MUST BE 134 CUBIC YARDS PER

ACRE OF DRAINAGE AREA. THE OUTFALL SYSTEM MUST, AT A MINIMUM, MAINTAIN THE

STRUCTURAL INTEGRITY OF THE BASIN DURING A TWENTY-FAVE YEAR STORM OF 24-HOUR

DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS MUST CORRESPOND TO A

BARE EARTH CONDITION OF THOSE CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT

BASIN IS UTILIZED.

RESPONSE: SEE THE EROSION AND SEDIMENT CONTROL NOTES, NARRATIVE, AND PLAN FOR SEDIMENT

BASINS AND TRAPS.

7. CUT AND FILL SLOPES MUST 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 MUST BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES

UNTIL THE PROBLEM IS CORRECTED.

RESPONSE: SEE THE EROSION AND SEDIMENT CONTROL NOTES, NARRATIVE, AND PLAN FOR CUT AND

FILL SLOPE STABILIZATION. THE MAXIMUM CUT AND FILL SLOPE IS 3:1.

8. CONCENTRATED RUNOFF MUST NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN

AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE.

RESPONSE: SEE THE EROSION AND SEDIMENT CONTROL NOTES, NARRATIVE, AND PLAN FOR DIVERSIONS

OF CONCENTRATED RUNOFF AROUND CUT AND FILL SLOPES.

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

BE PROVIDED.

RESPONSE. NO WATER SEEPAGE FROM A SLOPE FACE IS ANTICIPATED.

10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION MUST BE PROTECTED SO THAT SEDIMENT-LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING

FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT.

RESPONSE: SEE THE EROSION AND SEDIMENT CONTROL NOTES, NARRATIVE, AND PLAN FOR INLET

PROTECTION.

11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE

OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT

CHANNEL LINING MUST BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING

CHANNEL.

RESPONSE: SEE THE EROSION AND SEDIMENT CONTROL NOTES, NARRATIVE, AND PLAN FOR OUTLET

PROTECTION.

12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS MUST BE TAKEN TO MINIMIZE

ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE

GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATERIAL MUST BE USED FOR

THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE

STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS.

RESPONSE: NOT APPLICABLE TO THIS PROJECT.

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 MUST BE PROVIDED.

RESPONSE: NOT APPLICABLE TO THIS PROJECT.

14. ALL APPLICABLE FEDERAL, STATE, AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR

CROSSING LIVE WATERCOURSES MUST BE MET.

RESPONSE: NOT APPLICABLE TO THIS PROJECT.

15. THE BED AND BANKS OF A WATERCOURSE MUST BE STABILIZED IMMEDIATELY AFTER WORK IN THE

WATERCOURSE IS COMPLETED.

RESPONSE: NOT APPLICABLE TO THIS PROJECT.

16. UNDERGROUND UTILITY LINES MUST 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 MUST BE PLACED ON THE UPHILL SIDE OF TRENCHES.

C. EFFLUENT FROM DEWATERING OPERATIONS MUST 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 MUST BE PROPERLY COMPACTED IN ORDER TO

MINIMIZE EROSION AND PROMOTE STABILIZATION.

E. RESTABILIZATION MUST BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS.

F. APPLICABLE SAFETY REGULATIONS ALL BE COMPLIED WITH.

RESPONSE: CONTRACTOR MUST ADHERE TO THESE STANDARDS.

17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS,

PROVISIONS MUST 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 MUST BE CLEANED THOROUGHLY AT THE END OF EACH DAY.

SEDIMENT MUST BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED

TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING MUST BE ALLOWED ONLY AFTER

SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION MUST APPLY TO INDIVIDUAL DEVELOPMENT

LOTS AS WELL AS TO LARGER LAND-DISTURBING ACTIVITIES.

RESPONSE: CONSTRUCTION ENTRANCE(S) WILL BE PLACED FOR SITE ACCESS.

18. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES MUST BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM AUTHORITY. TRAPPED SEDIMENT AND

THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OR TEMPORARY MEASURES MUST

BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION.

RESPONSE: SEE THE EROSION AND SEDIMENT CONTROL NOTES, NARRATIVE, AND PLAN.

19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES MUST 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.

A. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE MUST 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 SYSTEM MUST BE

PERFORMED.

B. ADEQUACY OF ALL CHANNELS AND PIPES MUST BE VERIFIED IN THE FOLLOWING MANNER:

B.1. THE APPLICANT MUST DEMONSTRATE THAT THE TOTAL DRAINAGE AREA TO THE POINT OF

ANALYSIS WITHIN THE CHANNEL IS ONE HUNDRED TIMES GREATER THAN THE CONTRIBUTING

DRAINAGE AREA OF THE PROJECT IN QUESTION; OR

B.2. CHANNELS

B.2.1. NATURAL CHANNELS MUST BE ANALYZED BY THE USE OF A TWO YEAR STORM TO VERIFY

THAT STORMWATER WILL NOT OVERTOP BANKS NOR CAUSE EROSION OF CHANNEL BED

OR BANKS; AND

B.2.2. ALL PREVIOUSLY CONSTRUCTED MANMADE CHANNELS MUST BE ANALYZED BY THE USE

OF A TEN 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

B.2.3. PIPES AND STORM SEWER SYSTEMS MUST BE ANALYZED BY THE USE OF A TEN YEAR

STORM TO VERIFY THAT STORMWATER WILL BE CONTAINED WITHIN THE PIPE OR

SYSTEM.

C. IF EXISTING NATURAL RECEIVING CHANNELS OR PREVIOUSLY CONSTRUCTED MANMADE

CHANNELS OR PIPES ARE NOT ADEQUATE, THE APPLICANT MUST:

C.1. IMPROVE THE CHANNEL TO CONDITION WHERE A TEN YEAR STORM WILL NOT OVERTOP THE

BANKS AND A TWO YEAR STORM WILL NOT CAUSE EROSION TO THE CHANNEL BED OR BANKS;

C.2. IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE TEN YEAR STORM IS

CONTAINED WITHIN THE APPURTENANCES; OR

C.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 TEN

YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A MANMADE CHANNEL; OR

C.4. PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT, STORMWATER DETENTION OR OTHER

MEASURE WHICH IS SATISFACTORY TO THE PLAN APPROVING AUTHORITY TO PREVENT

DOWNSTREAM EROSION.

D. THE APPLICANT MUST PROVIDE EVIDENCE OF PERMISSION TO MAKE THE IMPROVEMENTS.

E. ALL HYDROLOGIC ANALYSES MUST BE BASED ON THE EXISTING WATERSHED CHARACTERISTICS

AND THE ULTIMATE DEVELOPMENT OF THE SUBJECT PROJECT.

F. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER DETENTION HE MUST

OBTAIN APPROVAL FROM THE LOCALITY OF A PLAN FOR MAINTENANCE REQUIREMENTS OF THE

FACILITY AND THE PERSON RESPONSIBLE FOR PERFORMING THE MAINTENANCE.

G. OUTFALL FROM A DETENTION FACILITY MUST BE DISCHARGED TO A RECEIVING CHANNEL, AND

ENERGY DISSIPATORS MUST 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 MUST BE DIVERTED TO A STABLE OUTLET, ADEQUATE CHANNEL, PIPE OR

PIPE SYSTEM, OR TO A DETENTION FACILITY.

J. IN APPLYING THESE STORMWATER RUNOFF CRITERIA, INDIVIDUAL LOTS OR PARCELS IN A

RESIDENTIAL, COMMERCIAL OR INDUSTRIAL DEVELOPMENT MUST NOT BE CONSIDERED TO BE

SEPARATE DEVELOPMENT PROJECTS. INSTEAD, THE DEVELOPMENT, AS A WHOLE, MUST BE

CONSIDERED TO BE A SINGLE DEVELOPMENT PROJECT. HYDROLOGIC PARAMETERS THAT

REFLECT THE ULTIMATE DEVELOPMENT CONDITION MUST BE USED IN ALL ENGINEERING

CALCULATIONS.

K. ALL MEASURES USED TO PROTECT PROPERTIES AND WATERWAYS MUST 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

MANMADE CHANNELS IF THE PRACTICES ARE DESIGNED TO (i) DETAIN THE WATER QUALITY VOLUME AND 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 MUST BE EXEMPT FROM ANY FLOW RATE CAPACITY AND

VELOCITY REQUIREMENTS FOR NATURAL OR MANMADE CHANNELS AS DEFINED IN ANY

REGULATIONS PROMULGATED PURSUANT TO SS 62.1-44.15:54 OR 62.1-55.15:65 OF THE ACT.

M. FOR PLANS APPROVED ON AND AFTER JULY 1, 2014, THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS OF SS 62.1-44.15"52 A OF THE ACT AND THIS SUBSECTION MUST BE SATISFIED BY

COMPLIANCE WITH WATER QUANTITY REQUIREMENTS IN THE STORMWATER MANAGEMENT ACT

(SS 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 9VA25-870-47 OR GRANDFATHERING IN

9VA25-870-48 OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) REGULATION, IN

WHICH CASE THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS OF SS 62.1-44.15:52 A OF THE ACT MUST APPLY, OR (ii) ARE EXEMPT PURSUANT TO SS 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 MUST BE DEEMED TO

SATISFY THE REQUIREMENTS OF THIS SUBDIVISION 19.

RESPONSE: THE PROJECT IS DESIGNED SO THAT THE POST-DEVELOPMENT RUNOFF RATE AT ALL

OUTFALLS FROM THE SITE IS EQUAL TO OR LESS THAN THE PRE-DEVELOPMENT RUNOFF RATE.

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" AND THE

VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS.

ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE

WEEK PRIOR TO THE FINAL INSPECTION.

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

STEP IN CLEARING.

ES-4: A COPY OF THE EROSION AND SEDIMENT CONTROL PLAN MUST 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

MUST SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND

APPROVAL BY THE PLAN APPROVING AUTHORITY.

ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN

APPROVING AUTHORITY.

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.

ES-8: THE CONTRACTOR MUST INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE

EFFECTIVENESS OF THE EROSION CONTROL DEVICES MUST BE MADE IMMEDIATELY.

THE PURPOSE OF THE EROSION CONTROL MEASURES SHOWN ON THESE PLANS IS TO PRECLUDE THE TRANSPORT OF ALL WATERBORNE SEDIMENTS RESULTING FROM CONSTRUCTION ACTIVITIES FROM ENTERING ONTO ADJACENT PROPERTIES OR STATE WATERS. IF FIELD INSPECTION REVEALS THE INADEQUACY OF THE PLAN TO CONFINE SEDIMENT TO THE PROJECT SITE, APPROPRIATE MODIFICATIONS

WILL BE MADE TO CORRECT ANY PLAN DEFICIENCIES.

1. THE CONTRACTOR MUST BE THOROUGHLY FAMILIAR WITH ALL APPROVED PROCEDURES, WHICH

MAY BE PERTINENT TO THE PROJECT. MAINTENANCE WILL INCLUDE THE REPAIR OF MEASURES

DAMAGED BY ANY SUBCONTRACTOR INCLUDING THOSE OF THE PUBLIC UTILITY COMPANIES.

SUPPLY DEQ WITH THE NAME OF THE INDIVIDUAL RESPONSIBLE FOR ENSURING MAINTENANCE OF

INSTALLED MEASURES ON A DAILY BASIS PRIOR TO THE PRE-CONSTRUCTION MEETING.

2. SEDIMENT CONTROL DEVICES NOT LOCATED IN PROPOSED FILL OR EXCAVATION AREAS MUST BE CONSTRUCTED PRIOR TO ALL OTHER LAND DISTURBANCE. A PRE-CONSTRUCTION MEETING WILL BE

HELD AT THE SITE TO IDENTIFY THOSE MEASURES TO BE INITIALLY INSTALLED.

3. SURFACE FLOWS OVER CUT AND FILL SLOPES MUST BE CONTROLLED BY REDIRECTING FLOWS

FROM TRAVERSING THE SLOPES.

4. SEDIMENT CONTROL MEASURES MAY REQUIRE MINOR FIELD ADJUSTMENTS AT THE TIME OF

CONSTRUCTION TO ENSURE THEIR INTENDED PURPOSE IS ACCOMPLISHED. COR APPROVAL WILL BE

REQUIRED FOR OTHER DEVIATION FROM THE APPROVED PLANS.

5. TEMPORARY STOCKPILES OF SOIL / TOPSOIL EXCAVATED DURING SITE CONSTRUCTION ARE

ANTICIPATED. EXCESS SOIL / TOPSOIL MUST BE KEPT ONSITE AT A TEMPORARY LOCATION IN

ACCORDANCE WITH STATE AND FEDERAL LAW AND THE SWPPP FOR CONSTRUCTION WASTE.

6. THE CONTRACTOR MUST COMPLETE DRAINAGE FACILITIES WITHIN 30 DAYS FOLLOWING

COMPLETION OF ROUGH GRADING AT ANY POINT WITHIN THE PROJECT. THE INSTALLATION OF

DRAINAGE FACILITIES MUST TAKE PRECEDENCE OVER ALL UNDERGROUND UTILITIES. OUTFALL

DITCHES FROM DRAINAGE STRUCTURES MUST BE STABILIZED IMMEDIATELY AFTER CONSTRUCTION

OF SAME. THIS INCLUDES INSTALLATION OF EROSION CONTROL STONE WHERE REQUIRED.

7. TEMPORARY VEGETATIVE COVER MUST BE PROVIDED IN ALL AREAS WHICH ARE NOT DESIGNATED

FOR PAVING, UNDERGROUND UTILITIES, OR STRUCTURAL USES. SUCH AREAS MUST NOT BE

EXPOSED FOR PERIODS EXCEEDING 14 DAYS. TEMPORARY VEGETATIVE COVER MAY BE ELIMINATED IN FAVOR OF FINAL VEGETATIVE COVER IF CONSTRUCTION AND SEASONAL CONDITIONS PERMIT.

8. ALL AREAS DESIGNATED FOR PAVING, UNDERGROUND UTILITIES, AND STRUCTURAL USE MUST BE

COMPACTED, SEEDED, AND MULCHED AS SOON AS POSSIBLE BUT NOT EXCEEDING 14 DAYS

FOLLOWING INSTALLATION. NO MORE THAN 500' OF UTILITY TRENCHES ARE TO BE OPEN AT ONE

TIME.

9. THE TERM SEEDING, FINAL VEGETATIVE COVER OR STABILIZATION, ON THIS PLAN MUST MEAN THE

SUCCESSFUL GERMINATION AND ESTABLISHMENT OF A STABLE GRASS COVER FROM A PROPERLY

PREPARED SEEDBED CONTAINING THE SPECIFIED AMOUNTS OF SEED, LIME, AND FERTILIZER.

IRRIGATION MUST BE REQUIRED AS NECESSARY TO ENSURE ESTABLISHMENT OF GRASS COVER.

10. INLET PROTECTION MUST BE PROVIDED FOR ALL STORM DRAIN INLETS AS SOON AS PRACTICAL

FOLLOWING CONSTRUCTION OF SAME.

11. BASE COURSE MATERIAL MUST BE PLACED IN ALL PAVED AREAS WITHIN 30 DAYS OF FINAL GRADING.

12. TEMPORARY EROSION CONTROL MEASURES ARE NOT TO BE REMOVED UNTIL ALL DISTURBED

AREAS ARE STABILIZED. AFTER STABILIZATION IS COMPLETE, ALL MEASURES MUST BE REMOVED

WITHIN 30 DAYS. TRAPPED SEDIMENT MUST BE SPREAD AND SEEDED.

13. SEED AND MULCH AND PROVIDE TOPSOIL TO ALL DISTURBED AREAS THAT WILL NOT BE COVERED

WITH PAVEMENT.

THE DEMOLITION AND REHABILITATION PROJECT'S OBJECTIVE IS TO DEMOLISH BUILDINGS BEYOND THEIR USEFUL LIFE OR REHABILITATE BUILDINGS NOT BEYOND THEIR USEFUL LIFE ONCE ALL OF THE FACILITIES MAINTENANCE PROGRAM PROJECTS ARE COMPLETED. THIS INCLUDES B716 (FACILITIES MAINTENANCE), B618 (VEHICLE MAINTENANCE), B470 (TRANSPORTATION BUILDING), AND B703 (ROADS AND GROUNDS). THE PERSONNEL MOVING INTO THOSE FACILITIES WILL MOVE OUT OF THE BUILDINGS TO BE DEMOLISHED OR REHABILITATED. IF DEMOLISHED, THE AREAS WILL BE RETURNED TO AN OPEN GRASS SITE, WITH ALL

UTILITIES AND SITE FEATURES REMOVED.

EXISTING CONDITIONS

THE PROJECT CONSISTS OF MULTIPLE SMALLER DEVELOPED SITES WITH BUILDINGS, GRAVEL, PAVEMENT, PARKING LOTS, AND OTHER SITE FEATURES.

ADJACENT PROPERTY

SEE SHEET G-002 FOR EACH SITE'S LOCATION AND CONSTRAINTS.

OFFSITE AREAS

IT IS NOT ANTICIPATED THAT THIS PROJECT WILL IMPACT OFF-SITE AREAS, THOUGH THE CONTRACTOR MAY DISPOSE OF CONSTRUCTION DEBRIS, SOIL, ROCK, OR OTHER ITEMS OFF-SITE. ANY OFF-SITE DISPOSAL

AREAS MUST BE PERMITTED AS NECESSARY FOR THIS DISPOSAL.

CRITICAL EROSION AREAS

THE PROJECT AREA IS MODERATELY TO STEEPLY SLOPED , WITH AVERAGE SLOPES OF BETWEEN 8 TO 15%.

THE PROJECT SITE IS DEVOID OF JURISDICTIONAL WETLANDS. ANY PROPOSED 3:1 SLOPES REQUIRED TO TIE-OUT THE PROPOSED GRADING ARE THE CRITICAL EROSION AREAS WITH THIS PROJECT. THE CRITICAL

EMBANKMENT SLOPES REQUIRE CONTINUED PROTECTION DURING GRADING OPERATIONS.

SOILS

SOILS WITHIN THE PROJECT LIMITS ARE PRIMARILY UNCONTROLLED FILL OF LEAN CLAY (CL), GRAVEL WITH SAND (GP), SILT WITH SAND AND GRAVEL (ML), CLAYEY GRAVEL (GC), SILTY GRAVEL (GM), AND FAT CLAY (CH) WITH BOULDERS, TOPSOIL, TRASH, AND CONSTRUCTION DEBRIS UNDERLAIN BY WEATHERED

METABASALT.

E&S SEQUENCE

CONSTRUCTION WILL BE SEQUENCED SO THAT GRADING OPERATIONS CAN BEGIN AND END AS QUICKLY AS

POSSIBLE.

1. INSTALL SILT FENCE DOWNSLOPE FROM DISTURBED AREAS.

2. INSTALL SEDIMENT BASINS AND DITCHES/DIVERSIONS TO THESE.

3. INSTALL ALL OTHER PERIMETER CONTROLS.

4. INSTALL TEMPORARY SEEDING ON ALL AREAS ONCE GRADING IS COMPLETE.

5. INSTALL PERMANENT SEEDING, MULCH, AND TOPSOIL ONCE ALL LAND DISTURBANCE HAS CEASED.

MANAGEMENT STRATEGIES

IN GENERAL, MANAGEMENT STRATEGIES WILL FOLLOW THE PRESCRIBED STRATEGIES OUTLINED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. ADDITIONAL GUIDANCE IS PROVIDED FOR

REFERENCE.

EROSION AND SEDIMENT CONTROL MEASURES

THE OVERALL INTENT OF THIS PLAN IS THAT SEDIMENT AND EROSION BE CONTROLLED AT ALL TIMES DURING CONSTRUCTION. UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION

AND SEDIMENT CONTROL PRACTICES MUST MEET OR EXCEED THE MINIMUM STANDARDS AND

SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. THE PROPOSED MEASURES WERE SELECTED BASED ON DRAINAGE AREA SIZES AND PHYSICAL CHARACTERISTICS OF THE DISTURBED AREAS. THE MINIMUM STANDARDS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK MUST BE ADHERED TO UNLESS OTHERWISE WAIVED OR APPROVED BY A VARIANCE AS ISSUED

BY DEQ.

STRUCTURAL PRACTICES

STORM DRAIN INLET PROTECTION - 3.07

ALL STORM DRAINAGE INLETS AND CULVERTS MUST BE PROTECTED DURING CONSTRUCTION.

SEDIMENT-LADEN RUNOFF MUST BE FILTERED BEFORE ENTERING THE STORM DRAIN SYSTEM.

VEGETATIVE PRACTICES

TEMPORARY SEEDING - 3.31

ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN 14 DAYS MUST BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION 7 DAYS AFTER GRADING. SELECTION OF THE SEED MIXTURE

WILL DEPEND ON THE TIME OF YEAR IT IS APPLIED.

PERMANENT SEEDING - 3.32

ALL DENUDED AREAS WHERE PERMANENT, LONG-LIVED VEGETATIVE COVER IS NEED TO STABILIZE THE SOIL OR ROUGH-GRADED AREAS WHICH WILL NOT BE BROUGHT TO FINAL GRADE FOR A YEAR OR MORE WILL BE STABILIZED WITH PERMANENT SEED MIX. SEE LANDSCAPE PLAN FOR DESIGNATION OF AREAS TO

RECEIVE EACH SEED TYPE.

MULCHING - 3.35

MULCHING SHOULD BE APPLIED IMMEDIATELY FOLLOWING PERMANENT SEEDING. MULCH SHOULD BE SPREAD UNIFORMLY BY HAND OR MACHINE. ANCHORING TECHNIQUES MUST BE APPLIED IF STRAW MULCH

IS TO BE USED.

MANAGEMENT STRATEGIES

1. CONSTRUCTION WILL BE SEQUENCED SO THAT GRADING OPERATIONS CAN BEGIN AND END AS

QUICKLY AS POSSIBLE.

2. TEMPORARY SEEDING OR OTHER STABILIZATION WILL FOLLOW IMMEDIATELY AFTER GRADING.

3. AREAS WHICH ARE NOT TO BE DISTURBED WILL BE CLEARLY MARKED BY FLAGS, SIGNS, FENCING, ETC.

4. THE JOB SUPERINTENDENT MUST BE RESPONSIBLE FOR THE INSTALLATION AND MAINTENANCE OF

ALL EROSION AND SEDIMENT CONTROL PRACTICES.

5. DUST CONTROL TO BE PROVIDED BY SPRINKLING THE SITE WITH WATER, AS NEEDED, FROM CLOSEST

EXISTING HYDRANT OR USE OF WATER TRUCK.

PERMANENT STABILIZATION

ALL AREAS DISTURBED BY CONSTRUCTION OPERATIONS AND NEWLY GRADED ON SLOPES STEEPER THAN 3:1 MUST HAVE A SOIL BLANKET OR SODDED AND SEEDED ON ALL OTHER AREAS. IF SEEDING AND SODDING CANNOT BE ACCOMPLISHED DURING SCHEDULED TIME, PROTECT DISTURBED AREAS WITH MULCH OR JUTE MESH. RECOMMENDED SEEDING AND SODDING TIME MUST BE IN SPRING BETWEEN FEBRUARY 1 AND APRIL

30 OR IN FALL BETWEEN SEPTEMBER 1 AND OCTOBER 15.

SELECTION OF PLANT MATERIAL IS BASED ON CLIMATE, TOPOGRAPHY, SOILS, LAND USE, AND PLANTING SEASON. TO DETERMINE WHICH PLANT MATERIALS ARE BEST ADAPTED TO THE SITE, USE TABLE 3.32c OF THE VESCH, WHICH DESCRIBED PLANT CHARACTERISTICS AND LIST RECOMMENDED VARIETIES. ALL PERMANENT SEEDING MUST BE PLACED PER THE VESCH 3.32. IN ALL SEEDING OPERATIONS, SEED, FERTILIZER, AND LIME WILL BE APPLIED PRIOR TO MULCHING ACCORDING TO STD. & SPEC. 3.32 OF VESCH.

STORMWATER MANAGEMENT

WATER QUALITY AND WATER QUANTITY CONTROL FOR THE PROJECT WILL BE MANAGED IN ACCORDANCE WITH PART II B (TECHNICAL CRITERIA FOR REGULATED LAND-DISTURBING ACTIVITIES) OF THE VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) REGULATIONS. COMPLYING WITH THESE REGULATIONS WILL ALSO ADDRESS THE REQUIREMENTS OF EISA SECTION 438, WHICH REQUIRES FEDERAL AGENCIES TO

REDUCE STORMWATER RUNOFF FROM FEDERAL DEVELOPMENT AND REDEVELOPMENT PROJECTS TO

PROTECT WATER RESOURCES.

STORMWATER IS TO BE COLLECTED BY STORM DRAINS AND ROUTED THROUGH A SURFACE POND SO THAT IT CAN BE SLOWLY RELEASED BACK INTO THE EXISTING STORMWATER SYSTEM TO DECREASE PEAK FLOWS. THE SITE IS GRADED SO THAT NO RUNOFF WILL FLOW THROUGH THE SALT EQUIPMENT STORAGE

AREA. THE RUNOFF FROM THIS AREA WILL BE COLLECTED BY A SERIES OF DROP INLETS AND DRAIN TO A SALT STORAGE POND. THIS POND WILL NOT HAVE A DISCHARGE, EVEN DURING A 100-YEAR STORM. SEE

THE APPENDICES FOR THE SLAT STORAGE CALCULATIONS.

THE WATER QUANTITY DETENTION POND WILL MANAGE THE 1-YEAR AND 10-YEAR, 24-HOUR STORMS SO AS

NOT TO INCREASE EROSION AND FLOODING CONDITIONS AS THE DOWNSTREAM OUTFALL.

MAINTENANCE

ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY AND WITHIN 48-HOURS OF ANY RUNOFF-PRODUCING RAINFALL EVENT. THE FOLLOWING ITEMS WILL BE CHECKED IN PARTICULAR:

STRUCTURAL PRACTICES:

1. THE MATERIAL REMOVED FROM THE EROSION AND SEDIMENT CONTROL STRUCTURES MAY BE

DISPOSED OF BY SPREADING THE MATERIAL ON-SITE OR BY HAULING IT AWAY IF NOT SUITABLE FOR

PLACEMENT AS TOPSOIL.

2. SEDIMENT CONTROL STRUCTURES MUST NOT BE REMOVED WITHOUT APPROVAL OF THE SITE

INSPECTOR.

STORM DRAIN INLET PROTECTION - 3.07

CHECK REGULARLY FOR SEDIMENT BUILDING, WHICH WILL PREVENT DRAINAGE. IF THE GRAVEL IS

CLOGGED BY SEDIMENT, IT MUST BE REMOVED AND CLEANED OR REPLACED.

VEGETATIVE PRACTICES:

1. ADDITIONAL SLOPE STABILIZATION MEASURES MUST BE PROVIDED FOR SLOPES, WHICH ARE FOUND

TO BE ERODING EXCESSIVELY WITHIN ONE YEAR UNTIL THE PROBLEM IS CORRECTED.

2. NO AREA MUST BE LEFT DENUDED FOR A PERIOD LONGER THAN 14 DAYS EXCEPT FOR THAT PORTION

OF THE SITE IN WHICH WORK WILL BE CONTINUOUS BEYOND 14 DAYS.

TEMPORARY SEEDING - 3.31

CHECK REGULARLY TO ENSURE THAT GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. AREAS DAMAGED BY RAINFALL ARE TO BE RESEEDED AND MULCHED WITHIN TWO DAYS AND WHENEVER GROUND COVER HAS NOT BEEN ADEQUATELY ESTABLISHED TO PREVENT EROSION.

PERMANENT SEEDING - 3.32

CALCULATIONS FOR TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES:

A MAXIMUM OF A QUARTER ACRE OF DRAINAGE IS ALLOWED PER 100 LINEAR FEET OF SILT FENCE. A MAXIMUM OF 5 ACRES IS ALLOWED PER TEMPORARY DIVERSION DIKE. 67 CY DRY STORAGE AND 67 CY WET STORAGE PER ACRE ARE REQUIRED FOR THE SEDIMENT BASIN. A MAXIMUM OF 1 ACRE IS ALLOWED PER INLET PROTECTION. SEE THE CALCULATIONS FOR EROSION AND SEDIMENT CONTROL DRAINAGE AREA

MAPS FOR EACH PHASE.

THE LIMITS OF WORK IS APPROXIMATELY 166,300 SF/3.82 ACRES.

DEQ APPROVAL OF THIS STORMWATER MANAGEMENT PLAN FOR MOUNT WEATHER EMERGENCY

OPERATIONS CENTER FM MAINTENANCE 300-400 DEMOLITION (2023-0056) AND RELATED CONSTRUCTION GENERAL PERMIT APPROVAL COVERS THE CONSTRUCTION PHASES DETAILED IN THIS PLAN SET. ANY LAND DISTURBING ACTIVITIES THAT DEVIATE FROM THE DEVELOPMENT OUTLINED ON SHEETS CS101-CS105 IN THIS PLAN SET SHALL NOT BE CONSTRUCTED UNTIL A PLAN MODIFICATION HAS BEEN SUBMITTED TO DEQ

AND DEQ HAS PROVIDED APPROVAL.

9VAC25-840-40 VIRGINIA EROSION AND SEDIMENT CONTROL

MINIMUM STANDARDS

VIRGINIA EROSION AND SEDIMENT

CONTROL NOTES

GENERAL EROSION AND SEDIMENT

CONTROL NOTES

EROSION CONTROL NARRATIVE

GKT

CAT

SMS

EROSION AND SEDIMENT

CONTROL NOTES

C-002

SMF

STEP

CONC.

AC ACACAC

STEP

IIII

UNDERGROUND

FUEL TANK

WV W

UGE

4" PVC

SANMH 10095

RIM 1728.92

8" TC OUT 1720.34

8" TC IN 1722.42

8" TC

CONC.

STEP

PROPANE

I I I

III

I I I

I I I I I I I I I I I I I I I I I I I I I

III

I I I

III

IIIIIIIII

I II

UGE

ASPHALT

30" W OAK

22" PIN OAK

GRASS

GRAVEL

GRASS

NAIL SET 43

N 7071167.73

E 11657206.93

EL 1714.01

1711.424

BOL

1711.417

BOL

GRASS

NAIL SET 39

N 7071299.65

E 11657419.83

EL 1705.46

ROCK

x x x x x x x x x x x x x x

SANMH 9669

RIM 1711.20

8" TC OUT 1705.21

8" TC IN 1705.96

4" PVC IN 1707.81

4" PVC IN 1706.31

COCO

BM 9858

EL 1716.04

1711.916

4" PVC

BUILDING 315

BUILDING 320/320A

UGT

I…

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File details come from the government source that posted it. Updated Aug 26, 2025.