GSA WNRC Retaining Wall-100_ Final Submission-Drawings .pdf

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UNITED STATES GOVERNMENT

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Do not remove this notice.

Properly destroy or return documents when no longer needed.

FINAL SUBMISSION

PROJECT TEAM

SECURITY NOTICE

DRAWING INDEX

RETAINING WALL INVESTIGATION AND SOLUTION

VICINITY MAP

SCOPE OF WORK

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

ARCHITECT

GEOTECHNICAL ENGINEER

CIVIL ENGINEER

STRUCTURAL ENGINEER

CONSTRUCTION COST ESTIMATOR

LOCATION MAP

WASHINGTON NATIONAL RECORDS

4205 SUITLAND ROAD

SUITLAND, MARYLAND 20746

HAZARDOUS MATERIALS

APPLICABLE CODES, GOVERNING

STANDARDS AND CRITERIA

DOCUMENTS

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FINAL SUBMISSION

FINAL SUBMISSION

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I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional architect under the laws of the State of Maryland, License No. 9635, Expiration Date: 08/16/2023.

SITE

LOCATION

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PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

RETAINING WALL REPLACEMENT

WASHINGTON NATIONAL RECORDS CENTER (WNRC) SUITLAND, MARYLAND

FEBRUARY 15, 2022

GSA PROJECT CONTROL # RMD84124

LOCATION MAP

SCALE: 1" = 100' INDEX OF CIVIL ENGINEERING DRAWING

1 PRE-FINAL SUBMISSION 10-15-2021

2 MDE SUBMISSION 12-3-2021

I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the State of Maryland, License No. 19185, Expiration Date: 07/01/23.

MDE No. 22-SF-0088

3 PRE - FINAL DESIGN 1-11-2022

4 FINAL DESIGN 02-11-2022

5 FINAL DESIGN & MDE 2ND SUBMISSION 02-15-2022

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PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

GENERAL CIVIL ENGINEERING AND SITE PLAN NOTES AND CONDITIONS

GENERAL CONDITIONS

1. BENCHMARK INFORMATION:

BENCHMARK 1 TRAV1GPS IRON REBAR WITH CAP. ELEV=262.98' BENCHMARK 2 TRAV2GPS IRON REBAR WITH CAP. ELEV=253.75'

BENCHMARK 3 TRAV3GPS IRON REBAR WITH CAP. ELEV=286.31'

PENNONI PROJECT CONTROL AND BENCHMARKS ARE LOCATED ON DRAWING CS0201 FOR THIS PROJECT.

A.THE BENCHMARK DATA PROVIDED IS BASED UPON INFORMATION OF RECORD AND IS PROVIDED TO ACCOMMODATE DESIGN REVIEWS. BECAUSE BENCHMARKS ARE SUBJECT TO CHANGE AND/OR DISTURBANCE OVER TIME, IT IS THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY THIS INFORMATION, AND TO NOTIFY PENNONI (703-449-6700) AND THE CONTRACTING

OFFICER OF ANY DISCREPANCIES PRIOR TO CONSTRUCTION.

B.IF PENNONI IS NOT PROVIDING STAKE OUT SERVICES FOR THIS PROJECT, IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO ESTABLISH AND CONFIRM ALL VERTICAL AND HORIZONTAL CONTROLS TO BE USED FOR THIS PROJECT. FURTHER, IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO COMPUTE THE LAYOUT OF ALL PROPOSED SITE CONSTRUCTION (INCLUDING BUILDINGS, UTILITIES, PAVEMENTS, AND APPURTENANCES) CONSISTENT AND IN ACCORDANCE WITH THESE PLANS, IN ADVANCE OF COMMENCING THE WORK ASSOCIATED WITH THESE PLANS. COMPUTED LAYOUTS SHALL BE SUBMITTED TO AND APPROVED BY THE CONTRACTING OFFICER IN WRITING PRIOR TO CONSTRUCTION.

2. UNLESS OTHERWISE NOTED ON THIS SURVEY, LOCATIONS AND CONNECTIONS OF STORM AND SANITARY SEWER FACILITIES SHOWN HEREON ARE BASED ON OBSERVED FIELD EVIDENCE.

AS-BUILT INFORMATION OF ACCESSIBLE STRUCTURES HAVE BEEN PROVIDED, IF OBTAINABLE.

3. WHILE REASONABLE CARE HAS BEEN TAKEN IN IDENTIFYING UNDERGROUND UTILITIES AND CONNECTIONS, THEY ARE APPROXIMATE AND BASED ON OBSERVED ABOVE GROUND FACILITIES AND/OR SUBSURFACE UTILITY PAINT MARKINGS ONLY. THEREFORE, ACCURACY OF CONNECTIONS CANNOT BE GUARANTEED. THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE EXACT LOCATION OF ALL UTILITIES PRIOR TO CONSTRUCTION AND FOR ANY DAMAGES THAT MAY OCCUR DUE TO THEIR FAILURE TO LOCATE AND PROTECT THESE UNDERGROUND FACILITIES.

4. CONTRACTOR TO VERIFY FIELD CONDITIONS PRIOR TO AND DURING CONSTRUCTION AND NOTIFY THE CONTRACTING OFFICER AND THE ENGINEER IMMEDIATELY OF ANY DISCREPANCIES BETWEEN ACTUAL FIELD CONDITIONS AND APPROVED PLAN. SHOULD CONFLICTS BE DISCOVERED WITHIN THE INFORMATION PRESENTED IN THIS PLAN, THE CONTRACTOR SHALL CONTACT THE

CONTRACTING OFFICER TO DISCUSS/RESOLVE PRIOR TO ANY FURTHER CONSTRUCTION.

5. CONSTRUCTION SHALL BE EXECUTED AND PHASED IN SUCH A MANNER AS TO MINIMIZE ANY DISRUPTION OF THE EXISTING VEHICULAR AND/OR PEDESTRIAN TRAFFIC ACCESS AND CIRCULATION IN THE VICINITY OF THE PROPOSED CONSTRUCTION. THE CONTRACTOR SHALL REQUEST ANY SUCH CLOSURE OR DISRUPTION IN WRITING AT LEAST 30 DAYS PRIOR TO REQUESTED CLOSURE OR DISRUPTION. NO CLOSURE WILL BE ALLOWED WITHOUT WRITTEN PERMISSION FROM THE CONTRACTING OFFICER.

6. THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE EXACT LOCATION OF ALL UTILITIES PRIOR TO CONSTRUCTION AND WILL BE RESPONSIBLE FOR ANY DAMAGES THAT MAY OCCUR DUE TO THEIR FAILURE TO LOCATE AND PROTECT ANY UNDERGROUND FACILITIES. OBTAIN DIGGING PERMITS PRIOR TO START OF EXCAVATION BY CONTACTING THE CONTRACTING OFFICE 15 CALENDAR DAYS IN ADVANCE. SCAN THE CONSTRUCTION SITE WITH ELECTROMAGNETIC OR SONIC EQUIPMENT (I.E. EM OR GPR), AND MARK THE SURFACE OF THE GROUND WHERE EXISTING UNDERGROUND UTILITIES ARE DISCOVERED. VERIFY THE ELEVATIONS, MATERIALS AND SIZES OF EXISTING PIPING, UTILITIES, INCLUDING ANY TYPE OF UNDERGROUND OBSTRUCTION NOT INDICATED OR SPECIFIED TO BE REMOVED, BUT INDICATED OR DISCOVERED DURING SCANNING IN THE LOCATIONS TO BE TRAVERSED BY PIPING AND OTHER WORK TO BE INSTALLED. VERIFY ELEVATIONS BEFORE INSTALLING NEW WORK CLOSER THAN NEAREST MANHOLE OR OTHER STRUCTURE AT WHICH AN ADJUSTMENT IN GRADE CAN BE MADE. USE OF SCANNING EQUIPMENT MUST BE CERTIFIED BY NAVFAC SAFETY OFFICE FOR USE ON THE BASE. CONTACT THE CONTRACTING OFFICER FOR INSTRUCTIONS ON OBTAINING THIS CERTIFICATION.

7. DENOTES TEST HOLE REQUIRED TO DETERMINE EXACT LOCATION, MATERIAL, SIZE, VERTICAL AND HORIZONTAL ELEVATION OF EXISTING UTILITIES. CONTRACTOR SHALL BE RESPONSIBLE FOR THE DIGGING OF TEST HOLES PRIOR TO BEGINNING OF ANY CONSTRUCTION ON THE PROJECT. ALL CONFLICTS DISCOVERED AS A RESULT OF TEST HOLE FINDINGS SHALL BE REPORTED TO THE CONTRACTING OFFICER IMMEDIATELY. DO NOT START WORK UNTIL THE CONFLICTS ARE RESOLVED.

8. ALL CONSTRUCTION SHALL CONFORM TO THE UNIFIED FEDERAL CRITERIA (UFC) AND THE MARYLAND STATE HIGHWAY ADMINISTRATION (MSHA) STANDARDS AND SPECIFICATIONS. IN CASE OF ANY CONFLICT BETWEEN THESE REQUIREMENTS, THE MOST STRINGENT STANDARDS SHALL TAKE PRECEDENCE.

10. ALL CONSTRUCTION SHALL COMPLY WITH THE FOLLOWING STANDARDS AND SPECIFICATIONS:

A. MARYLAND STATE HIGHWAY ADMINISTRATION (MSHA) STANDARDS AND SPECIFICATIONS

B. MDE MARYLAND STORMWATER MANAGEMENT GUIDELINES FOR STATE AND FEDERAL PROJECTS.

C. MDE MARYLAND STORMWATER DESIGN MANUAL

D. AMERICANS WITH DISABILITIES ACT (ADA)-WWW.ADA.GOV ALL CURRENT REQUIREMENTS AND REGULATIONS FOR ACCESSIBLE DESIGN.

E. ADA-ABA REGULATION-WWW.ACCESS-BOARD.GOV/ADA-ABA/DOD-MEMORANDUM.HTM INTERNATIONAL BUILDING CODE (IBC).

F. 2011 MARYLAND STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL

G. "UNIFIED FACILITIES CRITERIA (UFC) - UFC 3-201-01 CIVIL ENGINEERING

11. TYPICAL SECTIONS ARE INTENDED TO SHOW GENERAL FEATURES OF THE PROPOSED CONSTRUCTION. FOR EXACT DETAILS AT A GIVEN LOCATION, SEE PLANS.

12. THIS PROJECT SHALL BE APPROVED BY THE MARYLAND DEPARTMENT OF THE ENVIRONMENT, WATER SCIENCE ADMINISTRATION PRIOR TO START OF CONSTRUCTION.

13. THE CONSTRUCTION CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL NECESSARY PERMITS PRIOR TO CONSTRUCTION. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL

REQUIRED PERMITTING FEES.

14. CONTRACTOR SHALL REMOVE LITTER AND CONSTRUCTION DEBRIS FROM THE SITE EACH DAY. LITTER, CONSTRUCTION DEBRIS, AND CONSTRUCTION CHEMICALS EXPOSED TO STORM WATER SHALL BE PREVENTED FROM BECOMING A POLLUTANT SOURCE FOR STORM WATER DISCHARGES AND SHALL NOT BE ALLOWED TO CLOG INLETS, NOR POLLUTE DISCHARGE CHANNELS.

15. NO SOLID MATERIALS, INCLUDING BUILDING MATERIALS, GARBAGE AND DEBRIS SHALL BE DISCHARGED TO SURFACE WATERS OF THE STATE, EXCEPT AS AUTHORIZED BY A CWA SECTION 404

PERMIT.

16. ALL EXISTING SURFACED STREETS AND SIDEWALKS THAT ARE OUTSIDE THE LIMITS OF DISTURBANCE SHALL BE MAINTAINED IN A CLEAN CONDITION, FREE OF DUST, MUD OR SNOWAT ALL

TIMES.

17. THE APPROVAL OF THIS PLAN DOES NOT CONSTITUTE THE APPROVAL OF FUTURE WORK OR WORK BY OTHERS.

18. THE APPROVAL OF THIS PLAN SHALL IN NO WAY RELIEVE THE OWNER/DEVELOPER OR HIS AGENT OF ANY LEGAL RESPONSIBILITIES WHICH MAY BE REQUIRED BY THE CODE OF MARYLAND OR

APPLICABLE ORDINANCES OR REQUIREMENTS.

19. NO GRAVE, OBJECT, STRUCTURE MARKING A PLACE OF BURIAL, OR OTHER ARCHEOLOGICAL SITE IS KNOWN TO EXIST ON THIS SITE.

GRADING AND EARTHWORK

20. ALL FINISHED GRADING, SEEDING, SODDING, OR PAVING SHALL BE DONE IN SUCH A MANNER AS TO PRECLUDE THE PONDING OF WATER ON THE SITE, PARTICULARLY ADJACENT TO BUILDINGS

AND STORM INLETS.

21. WHEN NECESSARY, AND IN KEEPING WITH THE DESIGN INTENT OF THE PLAN, MINOR ADJUSTMENTS TO GRADES AND ELEVATIONS, SHALL BE MADE IN THE FIELD WITH THE APPROVAL OF THE

OWNER/ENGINEER AND THE SITE INSPECTOR.

22. THE CONTROLLED FILL DENSITY SHALL BE CERTIFIED BY A REGISTERED PROFESSIONAL GEOTECHNICAL ENGINEER.

23. ALL BASE, SUBBASE AND SUBGRADE MATERIAL SHALL BE COMPACTED AT OPTIMUM CONTENT, WITHIN A TOLERANCE OF ± 2% OF OPTIMUM.

24. A GEOTECHNICAL REPORT HAS BEEN PREPARED BY PENNONI ASSOCIATES INC. (PENNONI) DATED JUNE 4, 2021, AND REVISED JUNE 21, 2021. THE CONTRACTOR SHALL OBTAIN AND BE FAMILIAR WITH THIS GEOTECHNICAL REPORT, AND CONFIRM THAT ALL GEOTECHNICAL-RELATED CONSTRUCTION COMPLIES WITH THE FINDINGS AND RECOMMENDATIONS OF THIS REPORT. IF THERE IS ANY DISCREPANCY DISCOVERED BETWEEN THE GEOTECHNICAL REPORT AND THESE DRAWINGS, SUCH DISCREPANCY SHALL BE REPORTED TO THE OWNER AND THE ENGINEER IMMEDIATELY, AND THE ASSOCIATED CONSTRUCTION SHALL NOT PROCEED UNTIL WRITTEN RESOLUTION OF THE DISCREPANCY IS PROVIDED BY THE OWNER AND THE ENGINEER.

GENERAL DEMOLITION NOTES

25. THE CONTRACTOR SHALL COORDINATE ALL REMOVAL EFFORTS WITH THE OWNER.

26. ANY HARDWOOD TREE WITH A DBH GREATER THAN 6” SHALL BE LIMBED, CUT IN 8' SECTIONS, AND STACKED AT A SITE TO BE DETERMINED BY OWNER AND ENGINEER. COORDINATION WITH OWNER AND

ENGINEER WILL BE REQUIRED PRIOR TO TREE REMOVAL.

27. THE CONTRACTOR IS RESPONSIBLE FOR ANY DAMAGE TO EXISTING ROADS, APPURTENANCES AND UTILITIES WHICH MAY OCCUR AS A RESULT OF THEIR CONSTRUCTION WITHIN OR CONTIGUOUS TO THE PROJECT SITE. ANY DAMAGE TO EXISTING ROADWAYS OR OTHER EXISTING FACILITIES SHALL BE REPAIRED TO BETTER THEN EXISTING CONDITIONS BY THE CONTRACTOR

AT NO ADDITIONAL COST TO THE GOVERNMENT.

28. NO EARTH DISTURBANCE SHALL OCCUR UNTIL THE PLAN HAS BEEN APPROVED BY MDE/WMA AND APPROVAL TO PROCEED GIVEN BY THE CONTRACTING OFFICER. THIS PROJECT REQUIRES APPROVED SEDIMENT AND EROSION CONTROL PLANS. THE CONTRACTOR SHALL SIGN THE ORIGINAL COPY OF THE APPROVED SEDIMENT AND EROSION CONTROL PLANS AS THE RESPONSIBLE PERSONNEL PRIOR TO BEGINNING ANY SOIL DISTURBING WORK. NO CONSTRUCTION SHALL BEGIN UNTIL THE PLAN HAS BEEN APPROVED BY

MDE/WMA AND THE CONTRACTING OFFICER HAS GIVEN APPROVAL TO PROCEED.

29. EXCAVATION SUPPORT SYSTEMS SHALL CONFORM TO THE PROVISIONS OF OSHA CONSTRUCTION STANDARD 29 CFR PART 1926 SUBPART P AND COE SAFETY AND HEALTH DEPARTMENT

REQUIREMENT MANUAL EM 385-1-1, JANUARY 2018.

30. THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ANY NECESSARY EXCAVATION PERMITS FROM THE OWNER, INCLUDING ALL REQUIRED FEES AND COORDINATION.

31. NO SEDIMENTATION SHALL BE ALLOWED TO EXIT PERMITTED LIMITS OF DISTURBANCE. THE CONTRACTOR SHALL REPAIR ANY DAMAGE TO THE EXISTING STORMWATER FACILITIES CAUSED IN ANY MANNER BY ACTIVITIES RELATED TO THE CONSTRUCTION OF THIS PROJECT, INCLUDING BUT NOT LIMITED TO SEDIMENTATION FROM CONSTRUCTION RUNOFF.

EXTERIOR IMPROVEMENTS (PAVEMENTS, LANDSCAPE, AND FENCING, ETC.)

32. THE PAVEMENT SECTION SHOWN ON THESE DRAWINGS IS BASED ON A PRELIMINARY CBR VALUE OF 5. THE CONTRACTOR SHALL PERFORM SUBGRADE TESTING AT THE TIME OF FINAL DESIGN AND CONSTRUCTION AND THE PAVEMENT DESIGNS/SECTION ADJUSTED, AS NECESSARY, TO REFLECT ACTUAL CBR VALUES.

33. AT ALL CONNECTIONS TO EXISTING CURB AND GUTTER, THE CONTRACTOR SHALL TRANSITION NEW CURB AND GUTTER TO MEET AND MATCH EXISTING CURB AND GUTTER. SUCH TRANSITIONS SHALL BE CONSTRUCTED TO ENSURE POSITIVE DRAINAGE AND SHALL BE AT CURB RETURNS WHERE POSSIBLE.

34. ALL CONCRETE SIDEWALKS SHALL BE 4" THICK UNLESS OTHERWISE NOTED IN THE PLAN. SIDEWALK SCORE JOINT LOCATIONS SHALL BE AT A MAXIMUM OF 6' O.C. SIDEWALK EXPANSION JOINTS SHALL BE A MAXIMUM OF 30' O.C. AND AT CHANGE IN MATERIAL AND AT PERIMETER OF STRUCTURES, UNLESS OTHERWISE SHOWN ON THE PLANS.

35. WALKWAYS SHALL BE CONSTRUCTED WITH A CROSS SLOPE OF 2% UNLESS OTHERWISE NOTED IN THE PLAN OR APPROVED BY THE ENGINEER, INCLUDING WALKWAYS CROSSING DRIVEWAY APRONS. CONSTRUCT WALKWAYS TO A MINIMUM LONGITUDINAL SLOPE OF 1%, EXCEPT WHERE WITHIN SAGS AND CRESTS, WITH ADEQUATE DRAINAGE. UNLESS OTHERWISE SHOWN ON THE PLAN, CONSTRUCT WALKWAYS TO A MAXIMUM LONGITUDINAL SLOPE OF 5%, OR TO MATCH ADJACENT ROADWAY GRADES, WHICHEVER IS GREATER.

36. UNLESS MORE STRINGENT COMPACTION REQUIREMENTS ARE NOTED ON THIS PLAN, THE SUBGRADE FOR ALL WALKWAYS SHALL BE COMPACTED TO A MINIMUM OF 95% OF THEORETICAL MAXIMUM DENSITY AT OPTIMUM MOISTURE CONTENT WITHIN THE TOLERANCE SPECIFIED IN THE CURRENT EDITION OF MSHA SPECIFICATIONS.

37. CONTROLLED FILLS SHALL BE COMPACTED TO 95% OF MAXIMUM DENSITY AS DETERMINED BY METHOD 'A' PER STANDARD PROCTOR AASHTO T-99, ASTM D698 AS APPLICABLE. DENSITY SHALL BE CERTIFIED BY A REGISTERED PROFESSIONAL AND RESULTS SUBMITTED TO THE APPROPRIATE JURISDICTION PRIOR TO PAVEMENT CONSTRUCTION.

38. ALL PAVEMENT STRIPING SHALL MEET THE CURRENT STANDARDS AND REQUIREMENTS OF THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD) AND SHALL BE THERMOPLASTIC

UNLESS OTHER SPECIFIED IN THIS PLAN.

39. A BITUMINOUS TACK COAT SHALL BE USED BETWEEN LIFTS OF BITUMINOUS PAVEMENT, PER MARYLAND STANDARDS AND SPECIFICATIONS.

40. ANY NEW PAVEMENT OPENED TO TRAFFIC SHALL RECEIVE A TACK COAT PRIOR TO PLACEMENT OF ANY OVERLYING ASPHALT COURSE.

41. AT LOCATIONS WHERE THE FINAL ASPHALT SURFACE COURSE IS TO BE FEATHERED INTO THE EXISTING ASPHALT SURFACE, THE EXISTING SURFACE COURSE SHALL BE SCABBLED TO A MINIMUM DEPTH OF 1.25 INCHES AND A TACK COAT SHALL BE APPLIED PRIOR TO FINAL PAVING TO ENSURE A SMOOTH WELL-BONDED JOINT. ADDITIONALLY, ALL CONNECTION TO EXISTING PAVEMENTS SHALL COMPLY WITH TYPICAL PAVEMENT JOINT DETAIL ON DRAWING CS3001.

GENERAL UTILITY NOTES:

42. ALL UTILITIES ARE TO BE RELOCATED AT THE CONTRACTOR'S EXPENSE. NO UTILITY INTERRUPTIONS SHALL BE ALLOWED UNLESS SPECIFICALLY PERMITTED BY THE CONTRACTING OFFICER.

ALL PERMITTED UTILITY INTERRUPTIONS SHALL BE REQUESTED FROM THE CONTRACTING OFFICER 30 CALENDAR DAYS IN ADVANCE AND SHALL BE SCHEDULED AND PERFORMED AFTER

WORKING HOURS.

43. PROVIDE 1' MINIMUM CLEARANCE BETWEEN UTILITY CROSSINGS.

44. PROVIDE A MINIMUM OF 4 FEET OF COVER OVER ALL WATER LINES.

45. DO NOT DISTURB, REMOVE, OR RELOCATE ANY ELECTRICAL LINES.

48. COORDINATE WITH OWNER AND ENGINEER TO RE-ROUTE OR RELOCATE ANY EXISTING UTILITY THAT CONFLICTS WITH CONSTRUCTION.

49. ALL WATER AND SEWER CONSTRUCTION SHALL BE PER WASHINGTON SUBURBAN SANITARY COMMISSION (WSSC) STANDARDS AND SPECIFICATIONS. CONTRACTOR SHALL COORDINATE WITH WSSC FOR ALL WATER AND SEWER

CONSTRUCTION.

50. EXISTING MANHOLE FRAMES, COVERS AND VALVE BOXES SHALL BE ADJUSTED AND/OR RE- CONSTRUCTED, AS NECESSARY, TO MATCH FINISHED GRADES.

FILTER FABRIC - TO BE PROVIDED PER C1 - WALL SECTION, AND BETWEEN STRUCTURAL FILL AND UL-FGA, AS FOLLOWS:

a. FABRIC SHALL BE A NONWOVEN FABRIC CONSISTING OF LONG CHAIN POLYMERIC FILAMENTS OR YARNS OF POLYPROPYLENE, POLYESTER, POLYAMIDE, OR POLYVINYLIDENE-CHLORIDE FORMED INTO A

STABLE NETWORK.

b. FABRIC SHALL BE INERT TO CHEMICALS COMMONLY ENCOUNTERED IN SOIL AND TO HYDROCARBONS.

c. FABRIC SHALL BE RESISTANT TO MILDEW, ROT, AND INSECT AND RODENT ATTACKS.

d. FABRIC SHALL CONTAIN ULTRAVIOLET RAY INHIBITORS AND STABILIZERS AND BE SUITABLE FOR USE AT TEMPERATURES OF 0°F TO 120°F.

e. FABRIC SECURING PINS SHALL BE 3/16-INCH DIAMETER STEEL, POINTED AT ONE END, AND FABRICATED AT THE OTHER END WITH A HEAD TO RETAIN A STEEL WASHER HAVING AN OUTSIDE DIAMETER OF NOT

LESS THAN 1 1/2 INCHES. PIN LENGTH SHALL BE AT LEAST 18 INCHES.

51. THIS SITE IS COVERED BY AN MS-4 PERMIT AND WILL BE SUBJECT TO EXTRA SCRUTINY BY MDE.

1 PRE-FINAL SUBMISSION 10-15-2021

2 MDE SUBMISSION 12-3-2021

I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the State of Maryland, License No. 19185, Expiration Date: 07/01/23.

SOIL EROSION & SEDIMENT CONTROL

SHALL BE STRICTLY ENFORCED.

NO DISTURBED AREAS SHALL BE LEFT UNSTABILIZED OVERNIGHT UNLESS THE

RUNOFF IS DIRECTED TO AN MDE APPROVED SEDIMENT CONTROL DEVICE.

MDE No. 22-SF-0088

3 PRE - FINAL DESIGN 1-11-2022

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PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

ABBREVIATIONS FOR SITE / CIVIL DRAWINGS

A AREA

AC ACRE

ABP ANGLE OF BULK PLANE

ATFP ANTITERRORISM FORCE PROTECTION

BC BACK OF CURB

BEAP BASE EXTERIOR ARCHITECTURAL PLAN

BM BENCH MARK

BMP BEST MANAGEMENT PRACTICES

BOL BOLLARD

BW BOTTOM OF WALL

C/C FACTOR RUNOFF COEFFICIENT

CD CHECK DAM

C&G CURB AND GUTTER

CFS CUBIC FEET PER SECOND

CIP CURB INLET PROTECTION

CL CENTERLINE

CLR CLEAR/CLEARANCE

CMF CONCRETE MONUMENT FOUND

CO CLEAN OUT

COMM. COMMUNICATION, TELECOMMUNICATION

CONC. CONCRETE

CULV. CULVERT

CVI COMMERCIAL VEHICLE INSPECTION

CVR COVER

D.B. DEED BOOK

DIA. DIAMETER

D.I.P. DUCTILE IRON PIPE

DT DECIDUOUS TREE

DWG DRAWING

EG EDGE OF GRAVEL

ELEC. ELECTRICAL

ELEV. ELEVATION

EP EDGE OF PAVEMENT

E & S EROSION & SEDIMENTATION CONTROL

ESMT. EASEMENT

EX./EXIST. EXISTING

FDN FOUNDATION

FFE FINISHED FLOOR ELEVATION

FH FIRE HYDRANT

FO FIBER OPTIC LINE

G GAS

GALV. GALVANIZED

GB GUTTER BUDDY

HC HEADER CURB

HCR HANDICAP RAMP

HP HIGH POINT

HWY. HIGHWAY

INC INCREMENTAL

INV. INVERT

IP INLET PROTECTION

IPF IRON PIPE FOUND

IPS IRON PIPE SET

JB JUNCTION BOX

LAT LATERAL

LB/LBS POUNDS

LONG LONGITUDE

LP LIGHT POLE, LOW POINT

MAX. MAXIMUM

MIN. MINIMUM

MH MANHOLE

MM MEET AND MATCH

MUTCD MANUAL OF UNIFORM TRAFFIC CONTROL DEVICES

NAVFAC NAVAL FACILITIES ENGINEERING COMMAND

NCPC NATIONAL CAPITAL PLANNING COMMISSION

NMMC NATIONAL MILITARY MEDICAL CENTER

NIC NOT IN CONTRACT

NTS NOT TO SCALE

OHE OVERHEAD ELECTRICAL

OSHA OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION

PP POWER POLE/PRESSURE PIPE

PERM. PERMANENT

PG. PAGE

PKNF PK NAIL FOUND

PRC POINT OF REVERSE CURVATURE

PVC POLYVINYL CHLORIDE

R/W, R.O.W. RIGHT OF WAY

RCP REINFORCED CONCRETE PIPE

REM. REMOVE

RR REMOVE AND RELOCATE, RAILROAD

RTE. ROUTE

S/W SIDEWALK

SAF SAFETY FENCE

SAN. SEW. SANITARY SEWER

SEC. SECTION

SF SQUARE FEET/SILT FENCE

SS SILTSOX

SSF SUPER SILT FENCE

STD. STANDARD

STM.DRN.STM.SEW. STORM DRAIN, STORM SEWER

SWM STORMWATER MANAGEMENT

TBR TO BE REMOVED

TC TOP OF CURB

TELE TELECOMMUNICATIONS EQUIPMENT

TP TELEPHONE POLE/TREE PROTECTION

TRANS TRANSFORMER, TRANSITION

TW TOP OF WALL

TYP. TYPICAL

UFC UNIFIED FACILITIES CRITERIA

UGE UNDERGROUND ELECTRICAL

UGT UNDERGROUND TELECOMMUNICATIONS

USGS UNITED STATES GEOLOGICAL SURVEY

UVSS UNDER-VEHICLE SURVEILLANCE SYSTEM

VOL. VOLUME

W/L, W/M, WAT WATER LINE, WATER MAIN

WSE WATER SURFACE ELEVATION

WSSC WASHINGTON SUBURBAN SANITARY COMMISSION

WTP WATER TREATMENT PLANT

YR YEAR

ZD ZONING DESIGNATION

W

OHT

GAS GAS GAS

BENCHMARK

LIMITS OF GRADING

EXISTING

DOOR LOCATION

BUILDING WALL

PROPERTY LINE

STREET CENTERLINE

CONTOURS

STORM STRUCTURE LABEL

CURB AND GUTTER

EDGE OF PAVEMENT

STORM SEWER

SANITARY SEWER

WATERMAIN

GAS LINE

UNDERGROUND ELECTRIC

OVERHEAD TELEPHONE

UNDERGROUND TELEPHONE

FENCE LINE

TRAFFIC SIGNAL POLE

WATER VALVE

UTILITY POLE

STREET LIGHT

PARKING SPACES NUMBER

FIRE HYDRANT

SIGN

SPOT SHOT

WATER METER

SANITARY STRUCTURE LABEL

TREE/BUSH

TREE LINE

TEST HOLE

X X X X

NEW

WETLANDS LINE

FIBER OPTIC LINE

BOLLARD

GWPBURIED UTILITY WARNING POST

GROUNG LIGHT

OVER HEAD WIRE

UGTUNDERGROUND TELECOM

UGT

CL

W

MAIN DOOR

GAS VALVE

TELEPHONE/TELECOM MANHOLE

SANITARY SEWER MANHOLE

STORM DRAIN MANHOLE

ELECTRIC MANHOLE

WATER MANHOLE

CLEAN OUT

RIP RAP

PENNONI SURVEY BOUNDARY

LEGEND FOR SITE / CIVIL DRAWINGS

BORING LOCATION............................. B1

EX. EVERGREEN TREE

E

G

SS

UNIDENTIFIED UTILITY

1 PRE-FINAL SUBMISSION 10-15-2021

2 MDE SUBMISSION 12-3-2021

I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the State of Maryland, License No. 19185, Expiration Date: 07/01/23.

MDE No. 22-SF-0088

3 PRE - FINAL DESIGN 1-11-2022

286.31

TRAV3GPS

7.628

7.7

6.7

6.6

7.4

7.7

7.6

7.6

7.8

7.7

7.8

253.75

TRAV2GPS

262.98

TRAV1GPS

0.0

9.7

9.7 26

9.5

8.326

9.3

7.6

5.4

2.6

5.0

5 27

0 27 5 28

0 28

262 26

G A

TE

CONC

CONC WALL

CONC WALL

WOOD

STEPS

CONC WALK

POWER

EQUIPMENT

EXISTING BUILDING EXISTING BUILDING

EXISTING BUILDING

CONC CURB

CONC CURB

CONC CURB

CONC CURB

ASPHALT DRIVE

ASPHALT DRIVE

RAILING

U:

\A cc ou nt s\M

TF

AX

\M

TF

AX

- G

SA

D C

Na tio na l R ec or ds R et ain ing W all \D

ES

IG

N\ _S

HE

ET

S\ M

TF

AX

1-

CS

TE

D:

2/

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9:

A M, B

Y:

Na de jda

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PL

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E:

Pe nn on i N

CS

.st b

PR

OJ

EC

T

ST

AT

US

PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

1 PRE-FINAL SUBMISSION 10-15-2021

2 MDE SUBMISSION 12-3-2021

I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the State of Maryland, License No. 19185, Expiration Date: 07/01/23.

00 20' 40'

MDE No. 22-SF-0088

3 PRE - FINAL DESIGN 1-11-2022

TRAV3GPS

7.628

7.7

6.7

6.6

7.4

7.7

7.6

7.6

7.8

7.7

7.8

253.75

TRAV2GPS

262.98

TRAV1GPS

0.0

9.7

9.7 26

9.5

8.326

9.3

7.6

5.4

2.6

5.0

5 27

0 27 5 28

0 28

262 26

G A

TE

CONC

CONC WALL

CONC WALL

WOOD

STEPS

CONC WALK

POWER

EQUIPMENT

EXISTING BUILDING EXISTING BUILDING

EXISTING BUILDING

CONC CURB

CONC CURB

CONC CURB

CONC CURB

ASPHALT DRIVE

ASPHALT DRIVE

RAILING

DEMOLISH EXISTING CURB AS NEEDED TO FACILITATE STABILIZED

CONSTRUCTION ENTRANCE. RETURN TO ORIGINAL CONDITION OR

BETTER AFTER CONSTRUCTION IS FINISHED

(SEE DRAWINGS # CS1001, CS3001 AND CS8001-CS8105.)

REMOVE AND REPLACE EXISTING RETAINING WALL

PER STRUCTURAL DRAWINGS AND SPECIFICATIONS.

REMOVE AND REPLACE EXISTING CONCRETE

TO EXISTING CONDITION OR BETTER, AS NEEDED

FOR RETAINING WALL REMOVAL AND REPLACEMENT

(SEE DRAWINGS # CS1001 AND CS3001).

DEMOLISH AND REPLACE THIS PORTION OF

EXISTING 4" SUB-DRAIN (SEE SITE PLAN)

DEMOLISH AND REMOVE THIS PORTION

OF EXISTING 4" SUB-DRAIN

PRESERVE AND CLEANOUT THIS PORTION OF

EXISTING 4" SUB-DRAIN (SEE SITE PLAN)

REMOVE AND REPLACE EXISTING CONCRETE CURB

AND GUTTER TO EXISTING CONDITION OR BETTER, AS

NEEDED FOR RETAINING WALL REMOVAL AND

REPLACEMENT (SEE DRAWINGS # CS1001 AND CS3001).

PROTECT EXISTING FIRE HYDRANT & ASSOCIATED WATER

LINE IN PLACE WTHOUT DAMAGE AND/OR REMOVE AND

REPLACE TO EXISTING CONDITION OR BETTER, AS

NEEDED FOR RETAINING WALL REMOVAL AND

REPLACEMENT (SEE DRAWINGS # CS1001 AND CS3001).

REMOVE AND REPLACE EXISTING ASPHALT PAVEMENT

TO EXISTING CONDITION OR BETTER, AS NEEDED FOR

RETAINING WALL REMOVAL AND REPLACEMENT

(SEE DRAWINGS # CS1001 AND CS3001).

PROTECT EXISTING LIGHT POST & ASSOCIATED ELECTRIC

LINE IN PLACE WTHOUT DAMAGE AND/OR REMOVE AND

REPLACE TO EXISTING CONDITION OR BETTER, AS

NEEDED FOR RETAINING WALL REMOVAL AND

REPLACEMENT (SEE DRAWINGS # CS1001 AND CS3001).

U:

\A cc ou nt s\M

TF

AX

\M

TF

AX

- G

SA

D C

Na tio na l R ec or ds R et ain ing W all \D

ES

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N\ _S

HE

ET

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1-

CS

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D:

2/

/2

9:

A M, B

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Na de jda

B ur diu ja

PL

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Pe nn on i N

CS

.st b

PR

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EC

T

ST

AT

US

PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

1 PRE-FINAL SUBMISSION 10-15-2021

2 MDE SUBMISSION 12-3-2021

I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the State of Maryland, License No. 19185, Expiration Date: 07/01/23.

00 20' 40'

MDE No. 22-SF-0088

3 PRE - FINAL DESIGN 1-11-2022

TRAV3GPS

7.628

7.7

6.7

6.6

7.4

7.7

7.6

7.6

7.8

7.7

7.8

253.75

TRAV2GPS

262.98

TRAV1GPS

0.0

9.7

9.7 26

9.5

8.326

9.3

7.6

5.4

2.6

5.0

5 27

0 27 5 28

0 28

262 26

G A

TE

CONC

CONC WALL

CONC WALL

WOOD

STEPS

CONC WALK

POWER

EQUIPMENT

EXISTING BUILDING EXISTING BUILDING

EXISTING BUILDING

CONC CURB

CONC CURB

CONC CURB

CONC CURB

ASPHALT DRIVE

ASPHALT DRIVE

RAILING

3' WIDE CONCRETE

SIDEWALK

212.6'

239.59'

MEET AND MATCH

EXISTING

REPAIR EXISTING WALL

(SEE STRUCT.)

REMOVE AND REPLACE EXISTING RETAINING WALL

PER STRUCTURAL DRAWINGS AND SPECIFICATIONS 4" PERFORATED UNDERDRAIN PIPE

CONNECT 6" PVC

LOWER FOUNDATION

DRAIN TO EXISTING INLET

26.93'

REPLACE PORTION OF EXISTING 4" SUB-DRAIN AND

CONNECT TO NEW LOWER SUB-DRAIN. CLEAN OUT

PORTION OF EXISTING SUB-DRAIN TO REMAIN

PRESERVE AND CLEANOUT THIS PORTION

OF EXISTING 4" SUB-DRAIN

REMOVE AND REPLACE EXISTING CONCRETE CURB

AND GUTTER TO EXISTING CONDITION OR BETTER, AS

NEEDED FOR RETAINING WALL REMOVAL AND

REPLACEMENT (SEE DRAWINGS # CS0501 AND CS3001).

PROTECT EXISTING FIRE HYDRANT & ASSOCIATED WATER

LINE IN PLACE WTHOUT DAMAGE AND/OR REMOVE AND

REPLACE TO EXISTING CONDITION OR BETTER, AS NEEDED

FOR RETAINING WALL REMOVAL AND REPLACEMENT (SEE

DRAWINGS # CS0501 AND CS3001).

PROTECT EXISTING LIGHT POST & ASSOCIATED ELECTRIC

LINE IN PLACE WTHOUT DAMAGE AND/OR REMOVE AND

REPLACE TO EXISTING CONDITION OR BETTER, AS

NEEDED FOR RETAINING WALL REMOVAL AND REPLACEMENT

(SEE DRAWINGS # CS0501 AND CS3001).

FINISHED GRADE IN GRASS AREA ON

HIGH SIDE OF WALL SHALL BE 1-FOOT

MIN. BELOW TOP OF WALL ELEVATION.

C1

C1

EX.=PROP.

TW=269.31' EX.=PROP.

TW=288.87'

EX.=PROP.

TW=288.93'

EX.=PROP.TW=288.87'

(AS SHOWN ON SECTION

C1 BELOW) EX.=PROP.

TW=288.94'

CO

CO

CO

WALL SECTION

SC: 1" = 5'

3'-6" RAIL

MATCH EXISTING

(SEE STRUCTURAL)

.0

4'

EXISTING TOP OF CURB (TC)

APPROXIMATE RANGE OF TC

VARIES FROM 261' - 266'±

ENGINEERED STRUCTURAL FILL PER PROJECT SPECIFICATIONS AND GEOTECHNICAL

REPORT (SEE ALSO GENERAL NOTES ON DRAWING # CS0002)

REMOVE AND REPLACE

EXISTING CONCRETE

CURB/SIDEWALK TO

EXISTING CONDITION OR

BETTER (ALSO SEE

STRUCTURAL).

EXISTING ROAD

BOTTOM OF FOOTING=265.50'

(PER RECORD DRAWINGS). CONTRACTOR TO CONFIRM DEPTH AND

SIZE OF EXISTING FOOTING AND NOTIFY THE OWNER AND ENGINEER

OF RESULTS PRIOR TO PROCEEDING WITH CONSTRUCTION.

CS1001

C1

PROPOSED RETAINING WALL

(SEE STRUCTURAL)

1.

' P E

R R

E C

O R

D D

O C

S

SLOPE VARIES

7.5% - 24%±

(SEE SITE PLAN)

FINISHED GRADE = 268.40' **. (FINISHED

GRADE VARIES FROM 267.5' - 268.5'±

ACROSS LENGTH OF WALL)

28.0'

CS3001

P1 ASPHALT PAVEMENT

CS3001

P2

LOWER LEVEL 4-INCH PERFORATED UNDERDRAIN

TO DISCHARGE TO 8-INCH SOLID PVC STORM DRAIN

TO DISCHARGE TO STORM DRAIN INLET (SEE PLAN)

BOTTOM OF PIPE MIN. 6" ABOVE BOTTOM OF

DRAINAGE AGGREGATE LAYER.

½ -INCH JOINT WITH

COMPRESSIBLE FILLER

AND SEALANT

12 INCHES MINIMUM OF FREE DRAINAGE AGGREGATE,

WRAPPED IN FILTER FABRIC TO PREVENT MIGRATION

OF BACKFILL INTO DRAINAGE AGGREGATE

GCP APPLIED TECHNOLOGIES (HTTPS://GCPAT.COM) PROCOR®

BELOW-GRADE FLUID APPLIED WATERPROOFING OR APPROVED

EQUAL; AND GCPAT HYDRODUCT® DRAINAGE COMPOSITES

PROTECTION AND DRAINAGE BOARD OR APPROVED EQUAL

UPPER LEVEL 4-INCH PERFORATED UNDERDRAIN TO DISCHARGE TO

4-INCH SOLID PVC WEEP HOLES TO DAYLIGHT ON DOWNHILL SIDE/FACE

OF WALL AT 10 FEET ON CENTER. COVER WEEP HOLES WITH RODENT

SCREEN WHERE THEY COME THROUGH WALL. ALL WEEP HOLES SHALL

DAYLIGHT 6 INCHES MIN. ABOVE FINISHED GRADE

1.

0'

ENGINEERED STRUCTURAL FILL AND ULTRA LIGHTWEIGHT (UL) FOAMED

GLASS AGGREGATE (FGA), PER UL-FGA - AEROAGGREGATES OF NORTH

AMERICA, LLC (AEROAGGNA.COM)

HTTPS://WWW.AEROAGGNA.COM/ABOUT-ULFGA), OR APPROVED EQUAL

(SEE ALSO STRUCTURAL DRAWINGS AND PROJECT SPECIFICATIONS).

M

IN

.E M

B E

D M

E N

T= 2'

TOP OF WALL ELEVATION = 288.87' **

AS NOTED ON PLAN

.4

7'

1.

U:

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Na tio na l R ec or ds R et ain ing W all \D

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1-

CS

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D:

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9:

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B ur diu ja

PL

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CS

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T

ST

AT

US

PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

00 20' 40'

1 PRE-FINAL SUBMISSION 10-15-2021

2 MDE SUBMISSION 12-3-2021

I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the State of Maryland, License No. 19185, Expiration Date: 07/01/23.

FILTER FABRIC - TO BE PROVIDED PER C1 - WALL SECTION, AND BETWEEN STRUCTURAL FILL

AND UL-FGA, AS FOLLOWS:

a. FABRIC SHALL BE A NONWOVEN FABRIC CONSISTING OF LONG CHAIN POLYMERIC FILAMENTS

OR YARNS OF POLYPROPYLENE, POLYESTER, POLYAMIDE, OR POLYVINYLIDENE-CHLORIDE

FORMED INTO A STABLE NETWORK.

b. FABRIC SHALL BE INERT TO CHEMICALS COMMONLY ENCOUNTERED IN SOIL AND TO

HYDROCARBONS.

c. FABRIC SHALL BE RESISTANT TO MILDEW, ROT, AND INSECT AND RODENT ATTACKS.

d. FABRIC SHALL CONTAIN ULTRAVIOLET RAY INHIBITORS AND STABILIZERS AND BE SUITABLE

FOR USE AT TEMPERATURES OF 0°F TO 120°F.

e. FABRIC SHALL CONFORM TO THE FOLLOWING TEST CRITERIA:

TEST AND METHOD SPECIFICATION LIMITS

GRAB TENSILE STRENGTH, ASTM D 1682, LBS. MIN. 90

TENSILE ELONGATION, ASTM D 1682, % MIN 20

BURST STRENGTH, ASTM D 3786, PSI MIN. 140

TRAPEZOIDAL TEAR STRENGTH, ASTM D 1117, PSI MIN. 45

EQUIVALENT OPENING SIZE, U.S. STANDARD SIEVE SIZE, CW-02215 USACE 40-100 (PER PLAN)

FLOW RATE, AASHTO M 2281 APPENDIX, GPM/SQ FT MIN. 40

COEFFICIENT PERMEABILITY, AASHTO M 228 APPENDIX, CM/SEC MIN. .05

f. FABRIC SECURING PINS SHALL BE 3/16-INCH DIAMETER STEEL, POINTED AT ONE END, AND

FABRICATED AT THE OTHER END WITH A HEAD TO RETAIN A STEEL WASHER HAVING AN

OUTSIDE DIAMETER OF NOT LESS THAN 1 1/2 INCHES. PIN LENGTH SHALL BE AT LEAST 18 INCHES.

MDE No. 22-SF-0088

3 PRE - FINAL DESIGN 1-11-2022

cc ou nt s\M

TF

AX

\M

TF

AX

- G

SA

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Na tio na l R ec or ds R et ain ing W all \D

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S\ M

TF

AX

1-

CS

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D:

2/

/2

9:

A M, B

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B ur diu ja

PL

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ST

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E:

Pe nn on i N

CS

.st b

PR

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EC

T

ST

AT

US

PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

1 PRE-FINAL SUBMISSION 10-15-2021

2 MDE SUBMISSION 12-3-2021

3 PRE - FINAL DESIGN 1-11-2022

MDE No. 22-SF-0088

TRAV3GPS

7.628

7.7

6.7

6.6

7.4

7.7

7.6

7.6

7.8

7.7

7.8

253.75

TRAV2GPS

262.98

TRAV1GPS

0.0

9.7

9.7 26

9.5

8.326

9.3

7.6

5.4

2.6

5.0

5 27

0 27 5 28

0 28

262 26

G A

TE

CONC

CONC WALL

CONC WALL

WOOD

STEPS

CONC WALK

POWER

EQUIPMENT

EXISTING BUILDING EXISTING BUILDING

EXISTING BUILDING

CONC CURB

CONC CURB

CONC CURB

CONC CURB

ASPHALT DRIVE

ASPHALT DRIVE

RAILING

212.6'

239.59'

26.93'

C1

C1

EX.=PROP.

TW=269.31' EX.=PROP.

TW=288.87'

EX.=PROP.

TW=288.93'

EX.=PROP.TW=288.87'

(AS SHOWN ON SECTION

C1 BELOW) EX.=PROP.

TW=288.94'

CO

CO

CO

PRESERVE AND CLEANOUT THIS PORTION OF

EXISTING 4" SUB-DRAIN (SEE SITE PLAN)

U:

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TF

AX

\M

TF

AX

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SA

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Na tio na l R ec or ds R et ain ing W all \D

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S\ M

TF

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1-

CS

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D:

2/

/2

9:

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Pe nn on i N

CS

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US

PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

12"

TYPICAL PAVEMENT JOINT SECTION

1 PRE-FINAL SUBMISSION 10-15-2021

2 MDE SUBMISSION 12-3-2021

I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the State of Maryland, License No. 19185, Expiration Date: 07/01/23.

00 20' 40'

FULL DEPTH ASPHALT PAVEMENT

CONCRETE SIDEWALK SECTION

MDE No. 22-SF-0088

3 PRE - FINAL DESIGN 1-11-2022

TRAV3GPS

7.628

7.7

6.7

6.6

7.4

7.7

7.6

7.6

7.8

7.7

7.8

253.75

TRAV2GPS

262.98

TRAV1GPS

0.0

9.7

9.7 26

9.5

8.326

9.3

7.6

5.4

2.6

5.0

5 27

0 27 5 28

0 28

262 26

G A

TE

CONC

CONC WALL

CONC WALL

WOOD

STEPS

CONC WALK

POWER

EQUIPMENT

EXISTING BUILDING EXISTING BUILDING

EXISTING BUILDING

CONC CURB

CONC CURB

CONC CURB

CONC CURB

ASPHALT DRIVE

ASPHALT DRIVE

RAILING

TO EX. STR. #10

Area = 0.44 Ac

TO EX. STR. 11

Area = 0.22 Ac

TO EX. STR. #12

Area = 0.56 Ac

TO EX. STR. #13

Area = 0.47 Ac

LOCATION OF GENERAL CONTRACTOR STORAGE /

LAY-DOWN AREA APPROXIMATELY 30' X 60'. THE

EXACT LIMITS ARE TO BE COORDINATED ON SITE

WITH THE GOVERNMENT AND MDE.

PROVIDE FENCING AROUND STAGING AREA, KEEP

CLEAN AND RESTORE TO ORIGINAL CONDITION OR

BETTER AT COMPLETION OF PROJECT.

WATER SOURCE VIA WATER TRUCK. WASH

WATER TO BE DIRECTED TO INLET PROTECTION.

SILT FENCE

STANDARD SYMBOL

FILTER LOG

E & S LEGEND

STABILIZED CONSTRUCTION

ENTRANCE W/ WASHRACK

STANDARD SYMBOL

CURB INLET PROTECTION

STANDARD SYMBOL

STANDARD SYMBOL

REMOVABLE PUMPING STATION

STANDARD SYMBOL

SUMP PIT

STANDARD SYMBOL

PORTABLE SEDIMENT TANK

STANDARD SYMBOL

E & S LEGEND

DRAINAGE DIVIDE

DRAINAGE AREA

CALLOUT

LIMIT OF DISTURBANCE

FILTER LOG

STANDARD SYMBOL

ONSITE CONCRETE WASHOUT

STRUCTURE

STANDARD SYMBOL

U:

\A cc ou nt s\M

TF

AX

\M

TF

AX

- G

SA

D C

Na tio na l R ec or ds R et ain ing W all \D

ES

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N\ _S

HE

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S\ M

TF

AX

1-

CS

TE

D:

2/

/2

1:

P M, B

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Na de jda

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PL

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E:

Pe nn on i N

CS

.st b

PR

OJ

EC

T

ST

AT

US

PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

1 PRE-FINAL SUBMISSION 10-15-2021

2 MDE SUBMISSION 12-3-2021

I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the State of Maryland, License No. 19185, Expiration Date: 07/01/23.

00 20' 40'

GENERAL NOTES FOR EROSION AND SEDIMENT

CONTROL PLANS:

1 - NO DISTURBED AREAS SHALL BE LEFT

UNSTABILIZED OVERNIGHT UNLESS THE RUNOFF IS

DIRECTED TO AN MDE APPROVED SEDIMENT

CONTROL DEVICE.

2 - SOIL EROSION & SEDIMENT CONTROL SHALL BE

STRICTLY ENFORCED.

3 - CONSTRUCTION VEHICLES SHALL BE WASHED

ONSITE AS NEEDED TO PREVENT ANY MUD,

SEDIMENT, OR SILTATION TO BE TRACKED OUTSIDE

OF CONSTRUCTION AREA.

NOTE: THIS SHEET IS FOR EROSION AND SEDIMENT

CONTROL ONLY. SEE OTHER SHEETS FOR SITE

PLANS AND DETAILS.

MDE No. 22-SF-0088

3 PRE - FINAL DESIGN 1-11-2022

NOTE:

1. THE WORK SHOWN IN THIS AREA SHALL BE DONE USING THE METHOD OF 'SAME DAY

STABILIZATION'. NO MORE LAND AREA [OR LENGTH OF TRENCH, SWALE, CHANNEL, ETC.] SHALL BE DISTURBED THAN CAN BE STABILIZED BY THE END OF THE SAME WORKDAY. ALL DISTURBED

AREAS THAT DO NOT DRAIN TO A SEDIMENT CONTROL DEVICE SHALL BE STABILIZED BY THE

END OF THE SAME WORKDAY. NO DISTURBED AREA SHALL BE LEFT UNSTABILIZED OVERNIGHT

UNLESS THE RUNOFF IS DIRECTED TO AN MDE APPROVED SEDIMENT CONTROL DEVICE. FOR

WORK ACTIVITIES IN PAVED AREAS, THE STONE BASE COURSE LAYER MUST BE PLACED BY THE

END OF THE SAME DAY TO QUALIFY AS SAME DAY STABILIZATION.

2. DISCHARGE FROM SUMP PIT (SP) VIA A REMOVABLE PUMPING STATION (RPS) SHALL BE

DISCHARGE TO EITHER A PORTABLE SEDIMENT TANK (PST) AND/OR A FILTER BAG (FB).

THE LOCATION OF THE PORTABLE SEDIMENT TANK (PST) AND/OR FILTER BAG (FB) MAY

VARY AND/OR BE ADJUSTED WITH PRIOR WRITTEN APPROVAL FROM THE OWNER, THE

ENGINEER, AND THE MDE INSPECTOR.

TRAV3GPS

7.628

7.7

6.7

6.6

7.4

7.7

7.6

7.6

7.8

7.7

7.8

253.75

TRAV2GPS

262.98

TRAV1GPS

0.0

9.7

9.7 26

9.5

8.326

9.3

7.6

5.4

2.6

5.0

5 27

0 27 5 28

0 28

262 26

G A

TE

CONC

CONC WALL

CONC WALL

WOOD

STEPS

CONC WALK

POWER

EQUIPMENT

EXISTING BUILDING EXISTING BUILDING

EXISTING BUILDING

CONC CURB

CONC CURB

CONC CURB

CONC CURB

ASPHALT DRIVE

ASPHALT DRIVE

RAILING

C1

C1

CO

CO

CO

TO EX. STR. #10

Area = 0.44 Ac

TO EX. STR. 11

Area = 0.22 Ac

TO EX. STR. #12

Area = 0.56 Ac

TO EX. STR. #13

Area = 0.47 Ac

WATER SOURCE VIA WATER TRUCK. WASH

WATER TO BE DIRECTED TO INLET PROTECTION.

SEE NOTE NELOW

LOCATION OF GENERAL CONTRACTOR STORAGE /

LAY-DOWN AREA APPROXIMATELY 30' X 60'. THE

EXACT LIMITS ARE TO BE COORDINATED ON SITE

WITH THE GOVERNMENT AND MDE.

PROVIDE FENCING AROUND STAGING AREA, KEEP

CLEAN AND RESTORE TO ORIGINAL CONDITION OR

BETTER AT COMPLETION OF PROJECT.

SILT FENCE

STANDARD SYMBOL

FILTER LOG

E & S LEGEND

STABILIZED CONSTRUCTION

ENTRANCE W/ WASHRACK

STANDARD SYMBOL

CURB INLET PROTECTION

STANDARD SYMBOL

STANDARD SYMBOL

REMOVABLE PUMPING STATION

STANDARD SYMBOL

SUMP PIT

STANDARD SYMBOL

PORTABLE SEDIMENT TANK

STANDARD SYMBOL

E & S LEGEND

FILTER LOG

STANDARD SYMBOL

DRAINAGE DIVIDE

DRAINAGE AREA

CALLOUT

LIMIT OF DISTURBANCE

ONSITE CONCRETE WASHOUT

STRUCTURE

STANDARD SYMBOL

U:

\A cc ou nt s\M

TF

AX

\M

TF

AX

- G

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PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

1 PRE-FINAL SUBMISSION 10-15-2021

2 MDE SUBMISSION 12-3-2021

I hereby certify that these documents were prepared or approved by me, and that I am a duly licensed professional engineer under the laws of the State of Maryland, License No. 19185, Expiration Date: 07/01/23.

00 20' 40'

GENERAL NOTES FOR EROSION AND SEDIMENT

CONTROL PLANS:

1 - NO DISTURBED AREAS SHALL BE LEFT

UNSTABILIZED OVERNIGHT UNLESS THE RUNOFF IS

DIRECTED TO AN MDE APPROVED SEDIMENT

CONTROL DEVICE.

2 - SOIL EROSION & SEDIMENT CONTROL SHALL BE

STRICTLY ENFORCED.

3 - CONSTRUCTION VEHICLES SHALL BE WASHED

ONSITE AS NEEDED TO PREVENT ANY MUD,

SEDIMENT, OR SILTATION TO BE TRACKED OUTSIDE

OF CONSTRUCTION AREA.

NOTE: THIS SHEET IS FOR EROSION AND SEDIMENT

CONTROL ONLY. SEE OTHER SHEETS FOR SITE

PLANS AND DETAILS.

MDE No. 22-SF-0088

NOTE:

1. THE WORK SHOWN IN THIS AREA SHALL BE DONE USING THE METHOD OF 'SAME DAY

STABILIZATION'. NO MORE LAND AREA [OR LENGTH OF TRENCH, SWALE, CHANNEL, ETC.] SHALL BE DISTURBED THAN CAN BE STABILIZED BY THE END OF THE SAME WORKDAY. ALL DISTURBED

AREAS THAT DO NOT DRAIN TO A SEDIMENT CONTROL DEVICE SHALL BE STABILIZED BY THE

END OF THE SAME WORKDAY. NO DISTURBED AREA SHALL BE LEFT UNSTABILIZED OVERNIGHT

UNLESS THE RUNOFF IS DIRECTED TO AN MDE APPROVED SEDIMENT CONTROL DEVICE. FOR

WORK ACTIVITIES IN PAVED AREAS, THE STONE BASE COURSE LAYER MUST BE PLACED BY THE

END OF THE SAME DAY TO QUALIFY AS SAME DAY STABILIZATION.

2. DISCHARGE FROM SUMP PIT (SP) VIA A REMOVABLE PUMPING STATION (RPS) SHALL BE

DISCHARGE TO EITHER A PORTABLE SEDIMENT TANK (PST) AND/OR A FILTER BAG (FB).

THE LOCATION OF THE PORTABLE SEDIMENT TANK (PST) AND/OR FILTER BAG (FB) MAY

VARY AND/OR BE ADJUSTED WITH PRIOR WRITTEN APPROVAL FROM THE OWNER, THE

ENGINEER, AND THE MDE INSPECTOR.

3 PRE - FINAL DESIGN 1-11-2022

NOTE: CUT SOIL MAY BE RE-USED IF TESTED AND CONFIRMED TO

MEET MDE SOIL AND GEOTECHNICAL REPORT SOIL REQUIREMENTS.

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PENNONI ASSOCIATES INC.

1602 Village Market Blvd SE, Suite 330

Leesburg, VA 20175 T 703.777.3616 F 703.777.3725

EROSION AND SEDIMENT CONTROL GENERAL NOTES

1. THE CONTRACTOR SHALL NOTIFY MDE AT (410) 537-3510 SEVEN (7) DAYS BEFORE COMMENCING ANY LAND DISTURBING ACTIVITY AND, UNLESS WAIVED BY MDE, SHALL BE REQUIRED TO HOLD A PRE-CONSTRUCTION MEETING BETWEEN PROJECT REPRESENTATIVES AND A REPRESENTATIVE OF MDE.

2. THE CONTRACTOR SHALL NOTIFY MDE IN WRITING AND BY TELEPHONE AT THE FOLLOWING POINTS:

A. THE REQUIRED PRE-CONSTRUCTION MEETING.

B. FOLLOWING INSTALLATION OF SEDIMENT CONTROL MEASURES.

C. PRIOR TO REMOVAL OR MODIFICATION OF ANY SEDIMENT CONTROL STRUCTURE(S).

D. PRIOR TO REMOVAL OF ALL SEDIMENT CONTROL DEVICES.

E. PRIOR TO FINAL ACCEPTANCE.

3. THE PLAN APPROVAL LETTER, APPROVED EROSION AND SEDIMENT CONTROL PLANS, DAILY LOG BOOKS, AND TEST REPORTS SHALL BE AVAILABLE AT THE SITE FOR INSPECTION BY DULY AUTHORIZED OFFICIALS OF MDE AND THE AGENCY RESPONSIBLE FOR THE PROJECT.

4. THE CONTRACTOR SHALL CONSTRUCT ALL EROSION AND SEDIMENT CONTROL MEASURES PER THE APPROVED PLAN AND CONSTRUCTION SEQUENCE AND SHALL HAVE THEM INSPECTED AND APPROVED BY THE MDE INSPECTOR PRIOR TO BEGINNING ANY OTHER LAND DISTURBANCES. MINOR SEDIMENT CONTROL DEVICE LOCATION ADJUSTMENTS MAY BE MADE IN THE FIELD WITH THE APPROVAL OF THE MDE INSPECTOR. THE CONTRACTOR SHALL ENSURE THAT ALL RUNOFF FROM DISTURBED AREAS IS DIRECTED TO THE SEDIMENT CONTROL DEVICES AND SHALL NOT REMOVE ANY EROSION OR SEDIMENT CONTROL MEASURE WITHOUT PRIOR PERMISSION FROM MDE INSPECTOR. THE CONTRACTOR SHALL OBTAIN PRIOR AGENCY AND MDE APPROVAL FOR MODIFICATIONS

TO THE EROSION AND SEDIMENT CONTROL PLAN AND/OR SEQUENCE OF CONSTRUCTION.

5. THE MDE INSPECTOR HAS THE OPTION OF REQUIRING ADDITIONAL SAFETY OR SEDIMENT CONTROL MEASURES, IF DEEMED NECESSARY.

6. THE CONTRACTOR SHALL PROTECT ALL POINTS OF CONSTRUCTION INGRESS AND EGRESS TO PREVENT THE DEPOSITION OF MATERIALS ONTO PUBLIC

ROADS. ALL MATERIALS DEPOSITED ONTO PUBLIC ROADS SHALL BE REMOVED IMMEDIATELY.

7. THE CONTRACTOR SHALL INSPECT DAILY AND MAINTAIN CONTINUOUSLY IN AN EFFECTIVE OPERATING CONDITION ALL EROSION AND SEDIMENT CONTROL MEASURES UNTIL SUCH TIME AS THEY ARE REMOVED WITH PRIOR PERMISSION FROM THE MDE INSPECTOR.

8. EROSION AND SEDIMENT CONTROL FOR UTILITY CONSTRUCTION SHALL BE PROVIDED IN ACCORDANCE WITH APPROVED PLANS. UTILITY CONSTRUCTION SHALL ONLY BE FOR AREAS WITHIN THE DELINEATED LIMIT OF DISTURBANCE. CALL "MISS UTILITY" AT 1-800-257-7777 48 HOURS PRIOR TO THE START OF WORK.

WHEN SAME DAY STABILIZATION IS APPROVED:

A. EXCAVATED TRENCH MATERIAL SHALL BE PLACED ON THE HIGH SIDE OF THE TRENCH.

B. TRENCHES FOR UTILITY INSTALLATION SHALL BE BACKFILLED, COMPACTED, AND STABILIZED AT THE END OF EACH WORKING DAY. NO MORE TRENCH

SHALL BE OPENED THAN CAN BE COMPLETED THE SAME DAY.

9. ALL WATER REMOVED FROM EXCAVATED AREAS SHALL BE PASSED THROUGH AN MDE APPROVED DEWATERING PRACTICE OR PUMPED TO A SEDIMENT TRAP OR BASIN PRIOR TO DISCHARGE TO A FUNCTIONAL STORM DRAIN SYSTEM OR TO STABLE GROUND SURFACE.

10. CONCRETE WASHOUT STRUCTURES SHALL BE USED WHEN CONCRETE TRUCKS, DRUMS, PUMPS, CHUTES, OR OTHER EQUIPMENT IS RINSED OR CLEANED

ON-SITE.

11. CONSTRUCTION ACTIVITIES PRODUCING DUST SHALL IMPLEMENT CONTROL MEASURES TO AVOID THE SUSPENSION OF DUST PARTICLES AND/OR PREVENT

DUST FROM BLOWING OFF-SITE OR TO AREAS WITHOUT TREATMENT.

12. FOLLOWING INITIAL SOIL DISTURBANCE OR RE-DISTURBANCE, PERMANENT OR TEMPORARY STABILIZATION SHALL BE COMPLETED WITHIN:

A. THREE (3) CALENDAR DAYS AS TO THE SURFACE OF ALL PERIMETER CONTROLS, DIKES, SWALES, DITCHES, PERIMETER SLOPES, AND ALL SLOPES

STEEPER THAN 3 HORIZONTAL TO 1 VERTICAL (3:1); AND

B. SEVEN (7) CALENDAR DAYS AS TO ALL OTHER DISTURBED OR GRADED AREAS ON THE PROJECT SITE NOT UNDER ACTIVE GRADING.

13. VEGETATIVE STABILIZATION SHALL BE PERFORMED IN ACCORDANCE WITH THE 2011 MARYLAND STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL. REFER TO APPROPRIATE SPECIFICATIONS FOR TEMPORARY SEEDING, PERMANENT SEEDING, MULCHING, SODDING, AND GROUND

COVERS.

14. WHEN SEEDING, ALL DISTURBED AREAS WITH SLOPES FLATTER THAN 2:1 SHALL BE STABILIZED WITH 4 INCHES OF TOPSOIL, SEED, AND MULCH. ALL DISTURBED AREAS WITH SLOPES 2:1 OR STEEPER SHALL BE STABILIZED WITH MATTING OVER 2 INCHES OF TOPSOIL AND SEED.

15. ALL SEDIMENT BASINS, TRAP EMBANKMENTS AND SLOPES, PERIMETER DIKES, SWALES AND ALL DISTURBED SLOPES STEEPER OR EQUAL TO 3:1 SHALL BE STABILIZED WITH SEED AND ANCHORED STRAW MULCH, SOD, OR OTHER APPROVED STABILIZATION MEASURES, AS SOON AS POSSIBLE BUT NO LATER THAN THREE (3) CALENDAR DAYS AFTER ESTABLISHMENT. ALL AREAS DISTURBED OUTSIDE OF THE PERIMETER SEDIMENT CONTROL SYSTEM SHALL BE MINIMIZED.

MAINTENANCE SHALL BE PERFORMED AS NECESSARY TO ENSURE CONTINUED STABILIZATION.

EROSION AND SEDIMENT CONTROL GENERAL NOTES (CONT.)

16. PERMANENT SWALES OR OTHER POINTS OF CONCENTRATED WATER FLOW SHALL BE STABILIZED WITH SEED AND AN APPROVED EROSION CONTROL MATTING, SOD, RIP-RAP, OR OTHER APPROVED STABILIZATION MEASURES.

17. FOR STOCKPILE SLOPES STEEPER THAN 3 HORIZONTAL TO 1 VERTICAL (3:1), THE CONTRACTOR SHALL APPLY SEED AND ANCHORED STRAW MULCH, SOD, OR OTHER APPROVED STABILIZATION MEASURES TO THE FACE OF THE STOCKPILE WITHIN THREE (3) CALENDAR DAYS OF ACTIVITY HAVING CEASED ON THE RESPECTIVE FACE. FOR SLOPES 3:1 OR FLATTER, THE CONTRACTOR SHALL APPLY STABILIZATION MEASURES TO THE FACE OF THE STOCKPILE WITHIN SEVEN

(7) CALENDAR DAYS OF ACTIVITY HAVING CEASED ON THE RESPECTIVE FACE. MAINTENANCE SHALL BE PERFORMED AS NECESSARY TO ENSURE CONTINUED

STABILIZATION.

18. FOR FINISHED GRADING, THE CONTRACTOR SHALL PROVIDE ADEQUATE GRADIENTS TO PREVENT WATER FROM PONDING FOR MORE THAN TWENTY-FOUR (24) HOURS AFTER THE END OF A RAINFALL EVENT. DRAINAGE COURSES AND SWALE FLOW AREAS MAY TAKE AS LONG AS FORTY-EIGHT (48) HOURS AFTER THE END OF A RAINFALL EVENT TO DRAIN. AREAS DESIGNED TO HAVE STANDING WATER SHALL NOT BE REQUIRED TO MEET THIS REQUIREMENT.

19. WHERE DEEMED APPROPRIATE BY THE ENGINEER OR INSPECTOR, SEDIMENT BASINS AND TRAPS MAY NEED TO BE SURROUNDED WITH AN APPROVED SAFETY FENCE. THE FENCE MUST CONFORM TO LOCAL ORDINANCES AND REGULATIONS. THE DEVELOPER OR OWNER SHALL CHECK WITH LOCAL BUILDING OFFICIALS ON APPLICABLE SAFETY REQUIREMENTS. WHERE SAFETY FENCE IS DEEMED APPROPRIATE AND LOCAL ORDINANCES DO NOT SPECIFY FENCING SIZES AND TYPES, THE FOLLOWING SHALL BE USED AS A MINIMUM STANDARD: THE SAFETY FENCE SHALL BE MADE OF WELDED WIRE AND AT LEAST 42 INCHES HIGH, HAVE POSTS SPACED NO FARTHER APART THAN 8 FEET, HAVE MESH OPENINGS NO GREATER THAN 2 INCHES IN WIDTH AND 4 INCHES IN HEIGHT WITH A MINIMUM OF 14 GAUGE WIRE. SAFETY FENCE SHALL BE MAINTAINED AND IN GOOD CONDITION AT ALL TIMES.

20. ALL SEDIMENT TRAP DEPTH DIMENSIONS ARE RELATIVE TO THE OUTLET ELEVATION. ALL TRAPS SHALL HAVE A STABLE OUTFALL. ALL TRAPS AND BASINS

SHALL HAVE STABLE INFLOW POINTS.

21. SEDIMENT SHALL BE REMOVED AND THE TRAP OR BASIN RESTORED TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO ONE QUARTER OF THE TOTAL DEPTH OF THE TRAP OR BASIN. TOTAL DEPTH SHALL BE MEASURED FROM THE TRAP OR BASIN BOTTOM TO THE CREST OF THE

OUTLET.

22. SEDIMENT REMOVED FROM TRAPS (AND BASINS) SHALL BE PLACED AND STABILIZED IN APPROVED AREAS, BUT NOT WITHIN A FLOODPLAIN, WETLAND OR TREE-SAVE AREA. WHEN PUMPING SEDIMENT LADEN WATER, THE DISCHARGE SHALL BE DIRECTED TO AN MDE APPROVED SEDIMENT TRAPPING DEVICE PRIOR TO RELEASE FROM THE SITE. A SUMP PIT MAY BE USED IF SEDIMENT TRAPS THEMSELVES ARE BEING PUMPED OUT.

23. PRIOR TO REMOVAL OF SEDIMENT CONTROL MEASURES, THE CONTRACTOR SHALL STABILIZE AND HAVE ESTABLISHED PERMANENT STABILIZATION FOR ALL CONTRIBUTORY DISTURBED AREAS USING SOD OR AN APPROVED PERMANENT SEED MIXTURE WITH REQUIRED SOIL AMENDMENTS AND AN APPROVED ANCHORED MULCH. WOOD FIBER MULCH MAY ONLY BE USED IN SEEDING SEASON WHERE THE SLOPE DOES NOT EXCEED 10% AND GRADING HAS BEEN DONE TO PROMOTE SHEET FLOW DRAINAGE. AREAS BROUGHT TO FINISHED GRADE DURING THE SEEDING SEASON SHALL BE PERMANENTLY STABILIZED AS SOON AS POSSIBLE, BUT NOT LATER THAN THREE (3) CALENDAR DAYS AFTER ESTABLISHMENT FOR SLOPES STEEPER THAN 3 HORIZONTAL TO 1 VERTICAL (3:1) AND SEVEN (7) CALENDAR DAYS FOR FLATTER SLOPES. WHEN PROPERTY IS BROUGHT TO FINISHED GRADE DURING THE MONTHS OF NOVEMBER THROUGH FEBRUARY, AND PERMANENT STABILIZATION IS FOUND TO BE IMPRACTICAL, TEMPORARY SEED AND ANCHORED STRAW MULCH SHALL BE APPLIED TO DISTURBED AREAS. THE FINAL PERMANENT STABILIZATION OF SUCH PROPERTY SHALL BE APPLIED BY MARCH 15 OR EARLIER IF GROUND AND WEATHER

CONDITIONS ALLOW.

24. TEMPORARY SEDIMENT CONTROL DEVICES SHALL BE REMOVED WITH PERMISSION OF THE MDE INSPECTOR WITHIN THIRTY (30) CALENDAR DAYS FOLLOWING ESTABLISHMENT OF PERMANENT STABILIZATION IN ALL CONTRIBUTORY DRAINAGE AREAS. UPON REMOVAL OF SEDIMENT CONTROL DEVICES, THE AREA DISTURBED BY REMOVAL SHALL BE STABILIZED WITH TOPSOIL, SEED, AND MULCH, OR AS SPECIFIED, WITHIN 24 HOURS OF SAID REMOVAL. STORMWATER MANAGEMENT STRUCTURES USED TEMPORARILY FOR SEDIMENT CONTROL SHALL BE CONVERTED TO THE PERMANENT CONFIGURATION WITHIN THIS TIME

PERIOD AS WELL.

25. OFF-SITE SPOIL OR BORROW AREAS ON STATE OR FEDERAL PROPERTY SHALL HAVE PRIOR APPROVAL BY MDE AND OTHER APPLICABLE STATE, FEDERAL, AND LOCAL AGENCIES; OTHERWISE APPROVAL SHALL BE GRANTED BY THE LOCAL AUTHORITIES. ALL WASTE AND BORROW AREAS OFF-SITE SHALL BE

PROTECTED BY SEDIMENT CONTROL MEASURES AND STABILIZED.

26. SITE INFORMATION:

A. AREA DISTURBED _______________ACRES

B. TOTAL CUT _______________CUBIC YARDS

C. TOTAL FILL _______________CUBIC YARDS

D. OFF-SITE WASTE / BORROW AREA LOCATION _____________________TBD

SEQUENCE OF CONSTRUCTION

1. THE CONTRACTOR SHALL NOTIFY THE MARYLAND DEPARTMENT OF ENVIRONMENT, WATER SCIENCE ADMINISTRATION (MDE/WSA) BY TELEPHONE AT (410) 537-3510 AND IN WRITING SEVEN (7) DAYS BEFORE COMMENCING ANY LAND DISTURBING ACTIVITIES TO ARRANGE FOR A PRE-CONSTRUCTION MEETING.

2. LIMITS OF DISTURBANCE MUST BE FIELD MARKED PRIOR TO INSTALLATION OF SEDIMENT CONTROL DEVICES.

3. CLEAR AND GRUB ONLY THAT PORTION OF THE SITE NECESSARY TO INSTALL PHASE 1 EROSION AND SEDIMENT CONTROLS.

4. INSTALL ALL E & S CONTROL MEASURES AS SHOWN ON THE PHASE 1 AND PHASE 2 EROSION & SEDIMENT PLANS.

A. ACCESS FOR CONSTRUCTION SHALL BE FROM THE EXISTING DRIVEWAY ON NORTHEN SIDE AND HAVE PROVIDED AN ONSITE CONCRETE WASHOUT STRUCTURE (CWS), AS SHOWN. ACCESS CONSTRUCTION #1 ON SOUTH SITE SHALL BE FROM THE EXISTING ROAD, AS SHOWN. SEE DRAWINGS CS8001 AND CS8002 FOR EROSION AND SEDIMENT PLAN NOTES FOR LIMITED ACCESS TO LIMITS OF DISTURBANCE (LOD) VIA STABILIZED CONSTRUCTION ENTRANCES.

B. INSTALL SILT FENCE AND INLET PROTECTIONS, FILTER LOG, REMOVABLE PUMPING STATION, SUMP PIT, PORTABLE SEDIMENT TANK, FILTER BAG BEFORE

BEGINNING CONSTRUCTION OF THE SITE.

C. MAINTAIN AND ADJUST EROSION AND SEDIMENT CONTROL MEASURES AS NEEDED FOR PHASE 2 AS SHOWN ON THE PHASE 2 EROSION & SEDIMENT PLANS AS GRADING AND EARTHWORK OPERATIONS ARE ON-GOING. THE DISTURBED AREAS WITHIN THE LIMITS OF DISTURBANCE SHALL BE STABILIZED AS SOON

AS CONSTRUCTED TO PRECLUDE SEDIMENT FROM ENTERING THE STORM SYSTEM.

D. THE WORK SHOWN IN THE PLAN SHALL BE DONE USING THE METHOD OF 'SAME DAY STABILIZATION'. NO MORE LAND AREA (FOR LENGTH OF TRENCH, SWALE, CHANNEL, ETC.) SHALL BE DISTURBED THAN CAN BE STABILIZED BY THE END OF THE SAME WORKDAY. ALL DISTURBED AREAS THAT DO NOT DRAIN TO A SEDIMENT CONTROL DEVICE SHALL BE STABILIZED BY THE END OF SAME WORKDAY. NO DISTURBED AREA SHALL BE LEFT UNSTABILIZED OVERNIGHT UNLESS THE RINOFF IS DIRECTED TO AN MDE APPROVED SEDIMENT CONTROL DEVICE. FOR WORK ACTIVITIES IN PAVED AREAS, THE STONE BASE COURSE LAYER MUST BE PLACED BY THE END OF THE SAME DAY TO QUALIFY AS SAME DAY STABILIZATION.

E. ONCE ALL AREAS ARE FULLY STABILIZED AND WITH WSA INSPECTOR'S PERMISSION CONSTRUCTION SHALL COMMENCE. PRECLUDE ANY SEDIMENT LADEN RUNOFF FROM ESCAPING THE APPROVED LIMITS OF DISTURBANCE DURING AND AFTER CONSTRUCTION.