ESTABLI SHED 1758

V IRGINIA

TO

W

N

OF LEESBURG

TOWN OF LEESBURG, VIRGINIA

CAPITAL IMPROVEMENTS PROGRAM

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING IMPROVEMENTS - PHASE 1

IFB NO. 500640-FY27-02

MAY 2026

2:

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A N

G A N

BID SET

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

LEESBURG WPCF

LEESBURG WPCF

BATTLEFIELD PKWY

MARYLANDVIRGINIA

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LOUDOUN COUNTY

TOWN OF LEESBURG

TO

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N O

F LEESBURG

LO

UDO

UN CO

UNTY

698 7

BA

TT

LE

FI

EL

D P

KW

Y

POTOMAC STATION DR

RUSSELL BRANCH PKWY SE

KINCAID BLVD

KINCAID BLVD

W

&OD TRAIL

W &O

D TRAIL

TUSCARORA CREEK

TUSCARORA CREEK

TUSCARO

RA CREEK

RUSSELL BRANCH PKWY SE

E MARKET ST

E MARKET ST

E MARKET ST

M

AR

YLAN

D

VIR

G

IN

IA

VICINITY MAP

1" = 2500'

LOCATION MAP

1" = 500'

SITE DATA

ADDRESS: 1393 RUSSELL BRANCH PKWY

LEESBURG, VA. 20175

PROJECT LATITUDE/LONGITUDE 39.0919 / -77.5300

INSTRUMENT #: 201807180041537

GPIN #: 149358258000

ZONING: LB:I1 - LB:INDUSTRIAL/RESEARCH

PARK

RECEIVING WATERS (VAHUC6): PL-16: CATTAIL BRANCH-GOOSE

CREEK

FLOOD ZONE INFORMATION:

THE PROJECT RESIDES IN FEMA

FLOOD ZONE (AE), AN AREA OF

REGULATORY FLOODWAY AS SHOWN

ON THE FEMA FIRM PANEL

51107C0235E, EFFECTIVE FEB 17, 2017

NUMBER OF LOTS 1

NUMBER OF PARKING SPACES REQUIRED 1.0 PER EMPLOYEE, PLUS 1.0 PER

COMPANY VEHICLE

NUMBER OF PARKING SPACES PROVIDED N/A

ALLOWABLE BUILDING HEIGHT 55 FT

TABULAR AREA ALLOWED 15500 SF PER FLOOR

MAXIMUM FLOOR AREA RATIO NONE

THICKENED SLUDGE PUMPING STATION

STATISTICS

HEIGHT: 28'-8"

BOTTOM FLOOR AREA: 2397 SF

INTERMEDIATE FLOOR AREA: 1012 SF

TOP FLOOR AREA: 776 SF

SOLIDS ELECTRICAL BUILDING STATISTICS HEIGHT: 18'-0"

AREA: 1064 SF

DSST MIXING BUILDING STATISTICS HEIGHT: 20'-0"

AREA: 2030 SF

INTERIOR PARKING LOT LANDSCAPING

REQUIREMENT N/A

SITE AREA

TOTAL PROPERTY AREA: 52.1 ACRES

TOTAL DISTURBED AREA: 2.27 ACRES

EXISTING IMPERVIOUS AREA: 0.66 ACRES

PROPOSED IMPERVIOUS AREA: 0.93 ACRES

INCREASE IN IMPERVIOUS AREA: +0.27 ACRES

RPA IMPACTS 0.00 SF

SETBACKS

REQUIRED BUFFER YARD: 50 FT

FRONT SETBACK: 50 FT

SIDE SETBACK: 20 FT

REAR SETBACK: 20 FT

BMP TOTAL AREA -

ACRES

TOTAL

IMPERV -

ACRES

ACRES

TREATED

IMPERV -

ACRES

TREATED

LOCATION (VIRGINIA STATE

PLANE COODINATES (NAD83)

N: E:

HDS UNIT 1

(A-3) 1.08 0.44 1.08 0.44 11757569.727 7082396.392

HDS UNIT 2

(A-8) 0.73 0.42 0.73 0.42 11757674.663 7082351.446

HDS UNIT 3

(B-0) 1.29 0.94 1.29 0.94 11757823.876 7082264.005

EXTENDED

DETENTION

POND (WATER

QUANTITY

ONLY)

2.34 0.85 0.00 0.00 11757586.710 7082334.166

05/15/2026

2 342

3 342

NO. DATEISSUED FOR APPROVEDBY

PROJ.ENGR.

CHECKED

DRAWN

DESIGNED

SHEET

DATE:

OF

NUMBER

DRAWING

31111-098

MAY 2026

:4

3P

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J. HISE

IFB NO.

500640-

FY27-02

1 05/2026BID SET JTH

THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

H & S JOB

NUMBER

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

TOWN OF LEESBURG

LEESBURG, VIRGINIA

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING

IMPROVEMENTS - PHASE 1

G004

GENERAL

DESIGN CRITERIA AND SEQUENCE OF

CONSTRUCTION

M. MAZZOCHETTE

M. BLICKENSTAFF

J. HISE

DESIGN CRITERIA

PLANT FLOWS AND LOADS

PLANT INFLUENT FLOW

ANNUAL AVERAGE (AA) 7.5 MGD

MAXIMUM MONTH (MM) 9.0 MGD

PRIMARY SLUDGE MASS LOAD

ANNUAL AVERAGE (AA) 14,000 LB/DAY

MAXIMUM MONTH (MM) 16,000 LB/DAY

PRIMARY SLUDGE PUMPING

PRIMARY CLARIFIERS

PRIMARY CLARIFIERS, DUTY 2

PRIMARY CLARIFIERS, STANDBY 1

PRIMARY SLUDGE MINIMUM TS 2%

PRIMARY SLUDGE MAXIMUM TS 4%

PRIMARY SLUDGE PUMPING

FLOW RATE 300 GPM

TDH 33.7-36.8 FT

PUMP STYLE ROTARY LOBE

PUMP MOTOR SIZE 7.5 HP

PRIMARY SCUM PUMPING

FLOW RATE 100 GPM

TDH 4.1-8.4 FT

PUMP STYLE PROGRESSING CAVITY

PUMP MOTOR SIZE 5 HP

PRIMARY SLUDGE SCREENING

NUMBER OF UNITS, DUTY 1

NUMBER OF UNITS, STANDBY 1

RATED FLOW RATE 300 GPM

PERFORATION SIZE 3 MM

SCREEN DIFFERENTIAL

PRESSURE, MAX 10 PSI

PRIMARY SLUDGE FLOW SPLITTING

RATED FLOW 600 GPM

NUMBER OF OUTLETS, DUTY 2

NUMBER OF OUTLETS, STANDBY 1

WEIR LENGTH, PER OUTLET 3 FT

WEIR CREST ELEVATION 273.83 FT ABOVE MSL

GRAVITY THICKENING

NUMBER OF UNITS, DUTY 2

NUMBER OF UNITS, STANDBY 1

INNER DIAMETER 22 FT

DESIGN FEED RATE, PER UNIT 150 GPM

UNIT MOTOR SIZE 0.75 HP

CAPTURE EFFICIENCY 85%

THICKENED SLUDGE MASS LOAD

ANNUAL AVERAGE (AA) 11,900 LB/DAY

MAXIMUM MONTH (MM) 13,600 LB/DAY

THICKENED SLUDGE PUMPING

NUMBER OF UNITS, DUTY 3

NUMBER OF UNITS, STANDBY 1

DESIGN PUMPING RATE 250 GPM

DESIGN TDH 19.9-24.4 FT

THICKENED SLUDGE MINIMUM TS 4%

THICKENED SLUDGE MAXIMUM TS 6%

PUMP STYLE ROTARY LOBE

PUMP MOTOR SIZE 10 HP

ANAEROBIC DIGESTION

NUMBER OF UNITS, DUTY 3

NUMBER OF UNITS, STANDBY 1

BIOGAS PRODUCTION

ANNUAL AVERAGE (AA) 63 SCFM

MAXIMUM MONTH (MM) 67 SCFM

TCEN FEED SOLIDS 3%

TCEN DISCHARGE SOLIDS 6%

ANAEROBIC DIGESTER SOLIDS 3%

TCEN FEED RATE 75 GPM

TCEN FEED PUMP STYLE PROGRESSING CAVITY

TCEN FEED PUMP MOTOR SIZE 7.5 HP

TDS PUMPING RATE 40 GPM

TDS PUMP STYLE PROGRESSING CAVITY

TDS PUMP MOTOR SIZE 7.5 HP

HEAT EXCHANGING

NUMBER OF UNITS, DUTY 3

NUMBER OF UNITS, STANDBY 1

HEX UNIT CAPACITY ____

SAMPLE PUMPS

DESIGN PUMPING RATE 30 GPM

DESIGN TDH 20 FT

PUMP MOTOR SIZE 3 HP

DIGESTER COVERS

TYPE FIXED

NUMBER OF UNITS INSTALLED 4

OPERATING PRESSURE 13 IN H2O

DESIGN PRESSURE 15 IN H2O

DIGESTED SLUDGE STORAGE TANK (DSST) MIXING

NUMBER OF UNITS, DUTY 1

NUMBER OF UNITS, STANDBY 1

MIXING FLOW RATE 1200 GPM

MINIMUM DSST WATER LEVEL 9 FT

MINIMUM DSST VOLUME 100,000 GALLONS

MAXIMUM DSST WATER LEVEL 30 FT

MAXIMUM DSST VOLUME 300,000 GALLONS

PUMP STYLE HORIZONTAL CHOPPER

PUMP MOTOR SIZE 15 HP

SUGGESTED SEQUENCE OF WORK

A. PERFORM THE WORK IN THE SPECIFIED SEQUENCE OR AS OTHERWISE APPROVED BY ENGINEER. CERTAIN PHASES OR STAGES OF THE WORK MAY REQUIRE WORKING 24-HOUR DAYS OR WORK DURING HOURS OUTSIDE OF REGULAR WORKING HOURS.

WORK MAY BE ACCELERATED FROM A LATER STAGE TO AN EARLIER STAGE IF OWNER'S OPERATIONS ARE NOT ADVERSELY AFFECTED BY PROPOSED SEQUENCE CHANGE, AND WITH ENGINEER'S ACCEPTANCE. REFER TO SECTION 01 14 00 FOR SEQUENCE-DEPENDENT WORK STIPULATIONS AND REQUIREMENT FOR MAINTENANCE OF PLANT OPERATIONS.

1. MILESTONE 1: DIGESTED SLUDGE STORAGE TANK (DSST) B REPLACEMENT

1) DEMOLITION

a) EXISTING DSST B AND DSST B FOUNDATION.

b) EXISTING VALVE VAULTS AND YARD PIPING.

c) EXISTING INFRASTRUCTURE THAT MAY IMPEDE CONSTRUCTION OF A NEW CONCRETE STORAGE TANK (DSST B).

2) CONSTRUCTION OF NEW DSST B AND VALVE VAULTS.

3) THE INSTALLATION OF MIXING SYSTEM COMPONENTS WITHIN DSST-B CONCURRENT WITH DSST-B REPLACEMENT. MIXING

SYSTEM PIPING SHALL EXTEND BEYOND FOOTPRINT OF TANK AND BE AFFIXED WITH BLIND FLANGES OR OTHER ACCEPTABLE MEANS OF CAPPING TO RESIST FULL TANK PRESSURE IN ORDER TO FACILITATE CONNECTION OF MIXING

PUMP DISCHARGE AND SUCTION PIPING.

2. MILESTONE 2: DSST A UPGRADES

a. THE ADDITION OF MIXING SYSTEM PIPING AND NOZZLES TO DSST A. MIXING SYSTEM PIPING SHALL EXTEND BEYOND

FOOTPRINT OF TANK AND BE AFFIXED WITH BLIND FLANGES OR OTHER ACCEPTABLE MEANS OF CAPPING TO RESIST FULL TANK PRESSURE IN ORDER TO FACILITATE CONNECTION OF MIXING PUMP DISCHARGE AND SUCTION PIPING.

3. MILESTONE 3: DEMOLITION PHASE A AND REHABILITATION OF PRIMARY SLUDGE PUMP STATION (PSPS) #2

a. DEMOLITION INCLUDES:

1) PORTIONS OF YARD PIPING IN THE AREA OF THE EXISTING GRAVITY THICKENERS, INCLUDING UTILITY PIPING AND

SIDEWALK.

2) DEMOLITION OF LIQUID SLUDGE LOADING FACILITY.

b. MILESTONE 3 WORK INCLUDES:

1) REMOVAL OF PRIMARY SLUDGE PUMPS, ELECTRICAL EQUIPMENT, WATER HEATER AND ASSOCIATED APPURTENANCES AND

PIPING IN PSPS 2.

2) INSTALLATION OF NEW PRIMARY SLUDGE PUMPS WITH ASSOCIATED PIPING, VALVES AND METERS.

3) IMPROVEMENTS TO ELECTRICAL, INSTRUMENTATION, AND HVAC.

4) ELECTRICAL SYSTEM START-UP AND COMMISSIONING.

4. MILESTONE 4: REHABILITATION OF PRIMARY SLUDGE PUMP STATION (PSPS) #1

a. MILESTONE 4 WORK INCLUDES:

1) REMOVAL OF PRIMARY SCUM PUMP, PRIMARY SLUDGE PUMPS, ELECTRICAL EQUIPMENT, WATER HEATER AND ASSOCIATED

APPURTENANCES AND PIPING IN PSPS 1.

2) NEW WORK INCLUDES A NEW ROOF HATCH FOR EQUIPMENT ACCESS AND INSTALLATION OF NEW PRIMARY SLUDGE PUMPS

AND A NEW PRIMARY SCUM PUMP WITH ASSOCIATED PIPING, VALVES AND METERS.

3) IMPROVEMENTS TO ELECTRICAL, INSTRUMENTATION, AND HVAC SYSTEMS.

5. MILESTONE 5 - ANAEROBIC DIGESTER A AND C REHABILITATION

a. UPGRADES TO THE DIGESTERS INCLUDE NEW COVERS AND MIXERS, INSTALLATION OF FOAM SEPARATORS, SEDIMENT TRAPS AND DRIP TRAPS, AND INTERNAL STRUCTURAL REPAIRS. NEW PIPING, VALVES, FLOW METERS, AND DIGESTER GAS SAFETY

EQUIPMENT ARE TO BE PROVIDED.

6. MILESTONE 6 - ANAEROBIC DIGESTER B AND D REHABILITATION

a. UPGRADES TO THE DIGESTERS INCLUDE NEW COVERS AND MIXERS, INSTALLATION OF FOAM SEPARATORS, SEDIMENT TRAPS

AND DRIP TRAPS, AND INTERNAL STRUCTURAL REPAIRS. NEW PIPING, VALVES, FLOW METERS, AND DIGESTER GAS SAFETY

EQUIPMENT ARE TO BE PROVIDED.

7. BALANCE OF WORK

a. NEW GRAVITY THICKENERS COMPLEX

1) WORK INCLUDES CONSTRUCTION OF THE THICKENED SLUDGE PUMPING STATION, THREE GRAVITY THICKENERS, TWO

GRAVITY THICKENER SCUM PITS AND VALVE VAULTS, AND ASSOCIATED YARD UTILITIES.

2) CIVIL WORK TO BE COMPLETED REQUIRES EXCAVATION AND SHORING FOR THE NEW PUMP STATION AND GRAVITY

THICKENER TANKS.

3) MECHANICAL AND METAL COMPONENTS, PIPING TO SCUM PITS AND SPLITTER BOX, AND TANK LINING TO BE COMPLETED.

4) ODOR CONTROL DUCTWORK TO BE CONNECTED TO EXISTING ODOR CONTROL SYSTEM.

5) ELECTRICAL AND INSTRUMENTATION/CONTROLS WORK TO INCLUDE SYSTEMS FOR POWER LIGHTING, PROCESS, AND

BUILDING SUPPORT EQUIPMENT.

b. NEW SOLIDS ELECTRICAL BUILDING

1) CONSTRUCTION OF THE NEW SOLIDS ELECTRICAL BUILDING INCLUDING STRUCTURAL FOUNDATION, SLABS AND WALLS, CMU INSTALLATION AND ROOFING. INTERIOR WALLS, WATERPROOFING, LIGHTING, DOORS AND LIFE SAFETY

REQUIREMENTS TO BE INSTALLED.

2) HVAC EQUIPMENT, ELECTRICAL COMPONENTS AND CONNECTIONS, AS WELL AS THE NEW ELECTRICAL TRANSFORMER ARE

TO BE INSTALLED.

c. DSST MIXING SYSTEM BUILDING

1) CONSTRUCTION OF A NEW BUILDING WITH PUMPS AND SUPPORTING EQUIPMENT TO CONTINUOUSLY RECIRCULATE THE

CONTENTS OF THE DSSTS.

d. DIGESTER BUILDING UPGRADES

1) UPGRADES TO THE DIGESTER BUILDING PROCESS EQUIPMENT INCLUDE:

a) TWO NEW BOILERS AND SUPPORTING DIGESTER HEATING EQUIPMENT, AND 4 NEW SLUDGE HEAT EXCHANGERS.

b) A NEW CENTRIFUGE IS TO BE PROVIDED WITH UPGRADED THICKENED DIGESTED SLUDGE PUMPS.

c) SLUDGE SAMPLING SYSTEM IMPROVEMENTS

2) UPGRADES TO THE BUILDING INCLUDES:

a) NEW CMU WALLS AND BEAMS

b) NEW DOORS AND COATINGS

c) ELECTRICAL, HVAC, AND I&C IMPROVEMENTS

e. DEMOLITION PHASE B

1) REMOVAL OF THE ELECTRICAL SUBSTATION 45B AFTER ALL EXISTING ELECTRICAL LOADS HAVE BEEN RELOCATED OR

DECOMMISSIONED AND SUBSTATION IS UNPOWERED.

2) DEMOLITION OF GRAVITY THICKENERS A AND B, THE EXISTING SPLITTER BOX, AND ASSOCIATED PROCESS PIPING AS

SHOWN ON THE DRAWINGS.

f. CIVIL SITEWORK FOR THE DETENTION POND, PAVING, AND LANDSCAPING SHALL OCCUR CONCURRENTLY ACROSS ALL STAGES.

g. COMMISSIONING AND PROJECT CLOSEOUT

h. FINAL SITE WORK AND DEMOBILIZATION

SUGGESTED SEQUENCE OF ESC CONSTRUCTION

1. OBTAIN ALL NECESSARY PERMITS.

2. CONTRACTOR SHALL FOLLOW MAINTENANCE OF PLANT OPERATIONS (MOPO) REQUIREMENTS DEFINED IN SPECIFICATIONS SECTION 01 14 00, COORDINATION WITH OWNER'S OPERATIONS. THIS SPECIFICATIONS DEFINES THE REQUIRED SEQUENCING

IN MORE DETAIL.

3. SET UP A PRE-CONSTRUCTION MEETING WITH THE TOWN, PLANT STAFF, AND THE CONTRACTOR THROUGH (POINT OF

CONTACT TBD).

4. INSTALL EROSION AND SEDIMENT CONTROL MEASURES AT LOCATIONS AS DESIGNATED ON DRAWINGS INCLUSIVE OF SILT FENCING, TREE PROTECTION, INLET PROTECTION, SEDIMENT TRAP, AND CONSTRUCTION ENTRANCES. SEDIMENT TRAP AND

SHALL BE INSTALLED AS THE FIRST EROSION AND SEDIMENT CONTROL MEASURES.

5. ONCE ALL EROSION CONTROL MEASURES ARE IN PLACE, MOBILIZE.

6. CONTRACTOR SHALL EXECUTE DEMOLITION WORK AND REHABILITATION OF PRIMARY SLUDGE PUMPING STATION #1 AND #2.

7. CONTRACTOR SHALL CONSTRUCT NEW SOLIDS ELECTRICAL BUILDING.

8. CONTRACTOR SHALL CONSTRUCT NEW GRAVITY THICKENERS COMPLEX INCLUDING THE FOLLOWING: GRAVITY THICKENER TANKS, TEMPORARY SLUDGE PUMPING STATION, OVERHEAD CATWALK, SITE CIVIL IMPROVEMENTS, STORMWATER PIPES AND

STRUCTURES, AND ROAD IMPROVEMENTS.

9. CONTRACTOR SHALL CONSTRUCT DIGESTED SLUDGE STORAGE TANK (DSST) INCLUDING THE FOLLOWING: DSST TANK IMPROVEMENTS, DIGESTER SLUDGE MIXING BUILDING, YARD PIPING IMPROVEMENTS, SITE CIVIL IMPROVEMENTS, GRADING, AND ROAD IMPROVEMENTS.

10.ESC SOC STEPS 8 AND 9 CAN BE COMPLETED CONCURRENTLY.

11.CONTRACTOR SHALL CONSTRUCT ANAEROBIC DIGESTER BUILDING UPGRADES.

12.CONTRACTOR SHALL EXECUTE DEMOLITION OF ELECTRICAL SUBSTATION 45B AND ASSOCIATED INCLUDING TRANSFORMERS

TX-45B-36A AND B AND FOUNDATIONS AND DEMOLITION OF GRAVITY THICKENERS A AND B.

13.CONTRACTOR SHALL PERFORM PLANT SHUT DOWN OPERATIONS AS DETAILED IN SPECIFICATION SECTION 01 14 00, COORDINATION WITH OWNER'S OPERATIONS TO INSTALL ALL REQUIRED YARD PIPING WHILE ALSO MINIMIZING PLANT

DOWN-TIME.

14.STOCKPILE SOILS AND DEBRIS AS REQUIRED AT LOCATION SHOWN ON PLANS. CONTRACTOR TO DISPOSE OF EXCESS SOILS OFFSITE. STOCKPILE SHALL BE PROVIDED WITH PERIMETER EROSION CONTROL MEASURES. MEASURES SHALL BE A MINIMUM OF 10-FEET FROM TOE OF STOCKPILE SLOPE TO ALLOW FOR ACCESS AND MAINTENANCE. SIDE SLOPES SHALL BE 3H:1V MAX, WITH TOP OF STOCKPILE GRADED AT 5% MINIMUM FOR POSITIVE DRAINAGE.

15.THE CONTRACTOR SHALL MAINTAIN ALL EROSION AND SEDIMENT CONTROL MEASURES INSTALLED AND INSTALL ADDITIONAL EROSION CONTROL AND TEMPORARY GROUND STABILIZATION MEASURES AS MAY BE REQUIRED AS DETERMINED BY THE

ENGINEER OR OWNER.

16. ALL SEDIMENTATION CONTROL DEVICES SHALL BE INSPECTED WEEKLY AND AFTER EACH RAINFALL EVENT OF 1/2-INCH OR

GREATER AND REPAIRED OR REPLACED IMMEDIATELY AS NECESSARY.

17.ONCE CONSTRUCTION OF THE NEW SOLIDS ELECTRICAL BUILDING, GRAVITY THICKENERS COMPLEX, DSST, AND ANAEROBIC DIGESTER BUILDING UPGRADES ARE SUBSTANTIALLY COMPLETE, TEMPORARY VEGETATION MAY BE ESTABLISHED AND FINAL

GRADING MAY BEGIN.

18. WITHIN THIRTY DAYS (30) AFTER ACHIEVING ADEQUATE STABILIZATION AND UPON APPROVAL BY LOCAL REGULATORY AUTHORITY, THE TEMPORARY EROSION AND SEDIMENT CONTROLS SHALL BE CLEANED UP AND REMOVED.

5/15/2026

5 342

B #1

B #2

B #3

B #4

X X

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RECLAIMED WATER

SD

SD SD

X

X X X

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XX

NO. DATEISSUED FOR APPROVEDBY

PROJ.ENGR.

CHECKED

DRAWN

DESIGNED

SHEET

DATE:

OF

NUMBER

DRAWING

31111-098

MAY 2026

1:

A

C

D C

\A C

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H az en a nd S aw ye r\3

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J. HISE

IFB NO.

500640-

FY27-02

1 05/2026BID SET JTH

THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

H & S JOB

NUMBER

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

TOWN OF LEESBURG

LEESBURG, VIRGINIA

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING

IMPROVEMENTS - PHASE 1

C010

CIVIL

OVERALL SITE PLAN

N. CAROLLO

A. DARNELL

D. SKEGGS

PRIMARY/GRIT

ODOR CONTROL

BIOFILTER

EMERGENCY

STORAGE

TANK

GRIT

REMOVAL

FACILITIES

BNR FLOW

SPLITTER

STRUCTURE

PRIMARY

CLARIFIER A

REACTOR

BASINS A

AND B

REACTOR

BASINS C

AND D

REACTOR

BASINS E

AND F

PROCESS

BLOWER

BUILDING

PRIMARY

CLARIFIER B

PRIMARY

CLARIFIER C

DIURNAL

EQUALIZATION

FLOW SPLITTER

PRIMARY SCUM

LOADING PAD

PRIMARY SCUM

SCREENING BUILDING

DIGESTER

BUILDING

ADMINISTRATION

BUILDING

SOLIDS

PROCESSING

BUILDING

PUBLIC

WORKS

BUILDING

SECONDARY

CLARIFIERS A

AND B

SECONDARY

CLARIFIERS C

AND D

GRAVITY

FILTER

BUILDING

RECYCLE

EQUALIZATION

BASIN SOLIDS

STORAGE PAD

ENCLOSURE

MAINTENANCE

STORAGE BUILDING

DIGESTED SLUDGE

STORAGE TANKS

EMERGENCY

STORAGE

BASIN A

INFLUENT

PUMPING

STATION

INFLUENT PUMPING

STATION ODOR

CONTROL BIOFILTER

CHEMICAL

BUILDING

ELECTRICAL BUILDING

EFFLUENT PUMPING

STATION

INFLUENT

RECEIVING BOX

ELECTRICAL BUILDING NO. 2

FUEL TANK

GENERATOR

MAINTENANCE

SHOP

EMERGENCY

BLOWER BUILDING

W3 PUMPING

STATION

SLUDGE HOLDING

TANK

DIGESTER GAS

VALVE VAULT

METHANOL

STORAGE AND

PUMPING

RAS

METERING

VAULT

EMERGENCY

STORAGE FLOW

METER VAULT

W3 PRESSURE

REDUCING VAULT

ROUGHING RECIRC

STATION

EQUALIZATION RETURN

METERING VAULT

OWNER: LEESBURG, TOWN OF

PIN: 149358258000

1393 RUSSELL BRANCH PKWY

ZONING: I-1

USE: SEWAGE TREATMENT

FACILITY

AREA: 62.59 AC.

RUSSEL BRANCH PKWY SE

PRIMARY SLUDGE PUMPING

STATION NO. 1

PRIMARY SLUDGE PUMPING

STATION NO. 2

DIGESTER

GAS FLARE

INFLUENT FLOW

METER VAULT

GRAVITY FILTER

FLOW SPLITTER

RAS/WAS

PUMPING

STATION

SOLIDS PROCESSING

ODOR CONTROL RTO

AREA 1

C011, C021, C024, ES1

PHASED DEMOLITION AREA

SEE PLAN SHEET C014

KEYSTO

N

E D R

WASTE GAS FLARE

SETBACK FROM STRUCTURES

MIN. 50' RADIUS FROM CL OF FLARE

GT-A

[300]

GT-B

[320]

GT-C

[340]

FUTURE

GT

FUTURE

REACTOR

BASIN G

SOLIDS ELECTRICAL

BUILDING

THICKENED SLUDGE

PUMPING STATION

EXTENDED DETENTION POND

BMP (WATER QUANTITY ONLY)

TUSCARO

RA CREEK

AREA 2

C012, C022, C025, ES2

AREA 3

C013, C023, ES3

0 5025

SCALE: 1" = 50'

' F

R O

N T

SE

TB

AC

K

20' SIDE

SETBACK

BNR AND CLARIFIERS

ELECTRICAL BUILDING (FUTURE)

FUTURE

DENITRIFICATION

FILTERS

NOTES:

1. WASTE GAS FLARE TO BE LOCATED AT LEAST 50 FEET AWAY FROM

ANY STRUCTURES PER 9VAC25-790-550

2. SEE SHEETS C012 AND C034 FOR ADDITIONAL ROAD CLOSURE

INFORMATION.

SURVEY AREA 1 NOTES:

1. THE PROPERTY SHOWN HEREON IS IDENTIFIED ON LOUDOUN

COUNTY TAX ASSESSMENT MAP AS PIN 149-35-8258-000 AND IS

ZONED I-1 PER THE LOUDOUN COUNTY ZONING ORDINANCE.

2. THE PROPERTY SHOWN HEREON IS NOW IN THE NAME OF TOWN OF

LEESBURG, VIRGINIA AS RECORDED IN INSTRUMENT NO.

20180718-0041537 AMONG THE LAND RECORDS OF LOUDOUN

COUNTY, VIRGINIA.

LEESBURG TOWN UTILITIES

1385 RUSSELL BRANCH PKWY SE

LEESBURG, VA 20175

3. BOUNDARY INFORMATION SHOWN HEREON IS BASED ON EXISTING

LAND RECORDS OF LOUDOUN COUNTY, VIRGINIA, AND FIELD

VERIFIED BY J2 ENGINEERS, INC. IN MARCH, 2025. NORTH MERIDIAN

INFORMATION SHOWN HEREON IS REFERENCED TO NAD 83

VIRGINIA STATE PLANE, NORTH ZONE.

4. THIS PLAT HAS BEEN PREPARED WITHOUT THE BENEFIT OF A

COMMITMENT FOR TITLE INSURANCE.

5. THE PROPERTY SHOWN HEREON DOES LIES WITHIN THE 100-YEAR

FLOOD PLAIN. THE PROPERTY SHOWN HEREON LIES WITHIN ZONE

"AE" (SPECIAL FLOOD HAZARD AREAS) AS SHOWN ON FEMA FLOOD

INSURANCE RATE MAP FOR LOUDOUN COUNTY, VIRGINIA,

COMMUNITY-PANEL NUMBERS 51107C0231E AND 51107C0235E,

EFFECTIVE DATE: FEBRUARY 17, 2017, LOMR 18-03-0635P,

EFFECTIVE DATE: JULY 6, 2017, LOMR 21-03-0539P, EFFECTIVE DATE:

JULY 19, 2021.

6. CONTROL: HORIZONTAL: NAD 83 VA NORTH STATE PLANE

COORDINATE SYSTEM

VERTICAL: NGVD29

CONTROL BASED ON LEICA NETWORK RTK (SMARTNET)

AS REFERENCED TO THE LOYALA GPS REFERENCE

NETWORK.

7. LEVEL B SUE SURVEY PERFORMED BY UNDERGROUND UTILITY

SEARCH IN FEBRUARY, 2025.

SURVEY AREA 2 NOTES:

1. THE BASE MAPPING INFORMATION FOR SURVEY AREA 2

TAKEN FROM THE DRAWINGS TITLED "LEESBURG WATER

POLLUTION CONTROL FACILITY UPGRADE AND EXPANSION

PROJECT 7.5", DATED JULY 2004, AND PREPARED BY

CH2MHILL. THE SOURCE DATA FROM THESE DRAWINGS IS

THE FOLLOWING:

2. BASE MAPPING FOR THE WPCF SITE WAS PERFORMED BY

RICHARD CROUSE AND ASSOCIATES INC. FROM

PHOTOGRAPHY FLOWN IN 2002. THE ORIGINAL COMPILATION

SCALE FOR THE MAPPING WAS DONE AT 1"=50' WITH A

CONTOUR INTERVAL OF 2 FEET. CONTROL SURVEYS FOR

THE AERIAL MAPPING WERE DONE BY PATTON, HARRIS,

RUST & ASSOCIATES.

3. THE ELEVATIONS SHOWN ON THIS BASE MAP ARE BASED ON

NGVD 1929 AND ARE REFERENCED TO NATIONAL GEODETIC

SURVEY BENCHMARK "B-90 RESET 1949" ELEVATION 267.280.

BENCHMARK IS LOCATED 1800 FEET NW FROM EXISTING

WPCF PLANT ENTRANCE ALONG STATE HIGHWAY ROUTE 7,

AT A LARGE CONCRETE CULVERT IN THE TOP SOUTHWEST

HEADWALL, AND 30 FEET SOUTHWEST OF THE CENTERLINE

OF THE HIGHWAY.

4. HORIZONTAL COORDINATES SHOWN ARE REFERENCED TO

NAD 83 VIRGINIA NORTH STATE PLANE COORDINATE

SYSTEM. VERTICAL ELEVATIONS ARE BASED ON THE NORTH

AMERICAN DATUM OF 1927.

FUTURE TWAS

ELECTRICAL BUILDING

ZONE X

SURVEY AREA 2

SURVEY AREA 2

SURVEY AREA 1

LEGEND

SURVEY AREA BOUNDARY

AREA NO. SURVEYED BY SURVEY DATE

J2

1608 VILLAGE MARKET BLVD. SE

SUITE 200 LEESBURG, VA 20175

PH: 703-361-1550

JULY 20251

SEE SURVEY

AREA 2 NOTES

THIS SHEET

SEE SURVEY

AREA 2 NOTES

THIS SHEET

SURVEY DATA SUMMARY TABLE

50' SETBACK LINE

PROPERTY LINE

PROCESS AREAS

050 SUBSTATION 45B (DEMO)

070 PROCESS BLOWER BUILDING

100 PRIMARY SLUDGE PUMPING STATION NO. 1

150 PRIMARY SLUDGE PUMPING STATION NO. 2

200 THICKENED SLUDGE PUMPING STATION

250 GRAVITY THICKENER SPLITTER BOX

300 GRAVITY THICKENER A

320 GRAVITY THICKENER B

340 GRAVITY THICKENER C

400 GRAVITY THICKENER SCUM PIT

450 SOLIDS ELECTRICAL BUILDING

500 DIGESTER BUILDING

550 DIGESTER WASTE GAS FLARE

600 DIGESTED SLUDGE STORAGE TANK A

620 DIGESTED SLUDGE STORAGE TANK B

650 DIGESTED SLUDGE MIXING BUILDING

750 SOLIDS PROCESSING BUILDING

800 ADMINISTRATION BUILDING

820 ELECTRICAL BUILDING NO. 2

850 MAINTENANCE SHOP

[450]

[250] [200]

[850]

DIGESTED SLUDGE

MIXING BUILDING

[650]

[600] [620]

[800]

[750]

[500]

[550]

[150]

[100]

[070]

GTSP

[400]

GTSP

[400]

100 YEAR FLOODPLAIN

500 YEAR FLOODPLAIN

100 YEAR FLOODPLAIN

500 YEAR FLOODPLAIN

100 YEAR FLOODPLAIN

ZONE X

(0.2% ANNUAL

CHANCE

FLOOD

HAZARD)

ZONE X

ZONE AE

ZONE AE

REGULATORY

FLOODWAY

ZONE AE

REGULATORY

FLOODWAY

STORM TABLE

EX.1869 GRATE TOP=269.40

OUT=264.72 (6" PVC To EX.1866)

EX.1866 GRATE TOP=269.50

IN=262.33 (6" PVC Fr. EX.1869) OUT=261.88 (6" PVC To EX.1871)

EX.1859 GRATE TOP=263.27

OUT=260.76 (10" DIP To EX.1846)

EX.1846 MH TOP=262.96

IN=257.51 (10" DIP Fr. EX.1859) IN=257.40 (10" DIP Fr. EX.1853) OUT=257.23 (10" DIP To EX.1839)

EX.1839 MH TOP=264.79

IN=256.35 (10" DIP Fr. EX.1846) IN=259.50 (10" DIP Fr. EX.1880) IN=255.78 (4" PVC Fr. NE) OUT=255.69 (15" RCP To EX.1869)

EX.1838 GRATE TOP=263.92

IN=255.40 (15" RCP Fr. EX.1839) OUT=255.33 (15" RCP To EX.1833)

EX.1833 GRATE TOP=258.43

IN=254.00 (15" RCP Fr. EX.1838) OUT=253.93 (15" RCP To EX.1829)

EX.1829 GRATE TOP=257.43

IN=253.21 (15" RCP Fr. EX.1833) OUT=253.03 (15" RCP To EX.1824)

EX.1824 GRATE TOP=256.83

IN=252.95 (15" RCP Fr. EX.1829) OUT=252.76 (15" RCP To EX.1000)

EX.1000 MH TOP=258.45

IN=252.47 (15" RCP Fr. EX.1824) OUT=252.42 (15" RCP To EX.2001)

EX.2001 MH TOP=257.12

IN=251.86 (15" RCP Fr. EX.1000) OUT=251.56 (15" RCP To S)

EX.1879 GRATE TOP=260.33

OUT=258.93 (10" DIP To EX.1880)

EX.1880 GRATE TOP=261.68

IN=258.61 (10" DIP Fr. EX.1879) OUT=256.03 (10" DIP To EX.1839)

EX.1853 GRATE TOP=262.31

OUT=258.64 (10" DIP To EX.1846)

EX.1877 GRATE TOP=265.91

IN=262.65 (6" PVC Fr. SE) OUT=260.56 (6" PVC To EX.1878)

SANITARY TABLE

EX.1915 MH TOP=264.09

PAVED SHUT

EX.1862 MH TOP=266.94

IN=259.99 (4" PVC Fr. EX.1915) OUT=259.71 (6" PVC To EX.1855)

EX.1855 MH TOP=265.85

IN=259.57 (6" PVC Fr. EX.1862) IN=260.16 (6" PVC Fr. NE) IN=260.81 (6" PVC Fr. E) IN=259.74 (6" PVC Fr. SE) OUT=259.30 (8" PVC To EX.1845)

EX.1845 MH TOP=264.31

IN=259.29 (8" PVC Fr. EX.1855) IN=255.72 (8" PVC Fr. NE) OUT=255.68 (4" PVC To SE)

EX.1844 MH TOP=264.16

IN=259.78 (4" PVC Fr. SE) OUT=258.42 (8" PVC To EX.1878)

EX.1878 MH TOP=266.20

IN=257.44 (*" PVC Fr. *) IN=? (4" PVC Fr. EX.1877) OUT=257.36 (8" PVC To EX.1820)

EX.1820 MH TOP=263.10

IN=256.99 (12" PVC Fr. EX.1819) IN=256.98 (8" PVC Fr. EX.1878) OUT=256.82 (15" PVC To EX.1872)

EX.1872 MH TOP=262.38

IN=256.31 (15" PVC Fr. EX.1820) OUT=256.19 (15" PVC To NW)

EX.1815 MH TOP=270.17

IN=262.59 (4" PVC Fr. N) OUT=262.55 (4" PVC To EX.1814)

EX.1814 MH TOP=268.41

IN=258.34 (4" PVC Fr. EX.1815) IN=258.12 (6" PVC Fr. NW) OUT=257.98 (6" PVC To EX.1816)

EX.1816 MH TOP=266.90

IN=257.47 (6" PVC Fr. EX.1814) IN=257.47 (8" PVC Fr. EX.1871) OUT=257.44 (8" PVC To EX.1819)

EX.1819 MH TOP=266.50

IN=257.38 (8" PVC Fr. EX.1816) OUT=257.26 (12" PVC To EX.1820)

EX.1871 MH TOP=269.03

IN=257.89 (4" PVC Fr. NW) IN=257.91 (4" PVC Fr. NE) IN=257.86 (6" PVC Fr. EX.1866) OUT=257.77 (8" PVC To EX.1816)

SANITARY TABLE

EX.1813 MH TOP=265.13

IN=256.02 (4" PVC Fr. NE) OUT=255.92 (4" PVC To EX.1812)

EX.1812 MH TOP=263.46

IN=255.54 (4" PVC Fr. EX.1813) IN=256.94 (6" PVC Fr. NE) IN=257.03 (6" PVC Fr. NW) OUT=255.49 (6" PVC To EX.1811)

EX.1811 MH TOP=264.02

EX.1873 MH TOP=261.18

IN=255.06 (18" PVC Fr. NE) OUT=254.98 (15" PVC To EX.1913)

EX.1913 MH TOP=254.40

IN=247.87 (15" PVC Fr. EX.1873) IN=248.04 (115" PVC Fr. EX.1914) OUT=247.72 (18" PVC To SW)

EX.1823 MH TOP=260.18

IN=252.86 (?" PVC Fr. E) OUT=252.77 (15" PVC To EX.1914)

EX.1914 MH TOP=256.10

IN=249.52 (15" PVC Fr. EX.1823)

REVERSE FLOW CHECKED 3 TIMES

OUT=249.71 (15" PVC To EX.1913)

EX.1817 MH TOP=267.09

IN=255.73 (6" PVC Fr. SE) OUT=255.56 (6" PVC To EX.1818)

EX.1818 MH TOP=266.80

IN=255.17 (6" PVC Fr. EX.1817) IN=251.14 (6" PVC Fr. NE - LOWER INVERT) IN=255.44 (6" PVC Fr. SE) OUT=250.82 (10" PVC To EX.1822)

EX.1822 MH TOP=263.81

IN=250.89 (10" PVC Fr. EX.1818) OUT=249.63 (10" PVC To S)

EX.1729 MH TOP=239.10

EX.1779 MH TOP=272.21

EX.1780 MH TOP=271.54

EX.1781 MH TOP=270.90

EX.1821 MH TOP=263.38

EX.1847 MH TOP=262.52

EX.1848 MH TOP=262.40

EX.1849 MH TOP=261.82

EX.1854 MH TOP=264.62

SURVEY AREA BOUNDARY

DELIVERY ROUTE REQUIRED TO

REMAIN OPEN DURING CONSTRUCTION,

SEE NOTE 2.

6 342

DD

G

AS

GAS

GAS

WW

W

WWW

WWWWW

W

RECLAIMED WATER

DD

UNABLE TO DETERMINE

WHERE THIS PIPE COMES FROM

INVERT FROM

STORM NOT

PICKED UP

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TOWN OF LEESBURG,

VIRGINIA

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TH #1

TH #2

TH #3

TH #4

TH #5

TH #6

TH #7

TH #8

TH #9

TH #10

TH #11

TH #12

TH #13

TH #15

TH #16TH #17

TH #18

TH #19

TH #20

TH #21

TH #23TH #24

TH #25TH #26

TH #22

TH #27

TH #28

TH #29

TH #28A

TH #36

TH# 37

TH #38

TH #39

TH #40

TH #41

TH #42

TH #43

TH #44

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MAINTENANCE

STORAGE

BUILDING

ELECTRICAL

SUBSTATION

45B

NO. DATEISSUED FOR APPROVEDBY

PROJ.ENGR.

CHECKED

DRAWN

DESIGNED

SHEET

DATE:

OF

NUMBER

DRAWING

31111-098

MAY 2026

1:

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J. HISE

IFB NO.

500640-

FY27-02

1 05/2026BID SET JTH

THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

H & S JOB

NUMBER

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

TOWN OF LEESBURG

LEESBURG, VIRGINIA

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING

IMPROVEMENTS - PHASE 1

0 20'10

SCALE: 1" = 20'

PRIMARY

CLARIFIER A

PRIMARY

CLARIFIER B

PRIMARY

CLARIFIER C

DIGESTER

BUILDING

PRIMARY

SLUDGE

PUMPING

STATION

PRIMARY

SCUM

SCREENING

BUILDING

MAINTENANCE

SHOP

EMERGENCY

BLOWER

BUILDING

C011

CIVIL

DEMOLITION PLAN - AREA 1

N. CAROLLO

N. CAROLLO

D. SKEGGS

M

AT

C H

LI

N

E

SE

E

SH

EE

T

C

REACTOR

BASINS

C AND D

REACTOR

BASINS

E AND F

BNR FLOW

SPLITTER

STRUCTURE

PROCESS

BLOWER

BUILDING

DIURNAL

EQUALIZATION

FLOW SPLITTER

METHANOL

STORAGE AND

PUMPING

RAS/WAS

PUMPING

STATION

MATCHLINE SEE SHEET C013

SECONDARY

CLARIFIERS C

AND D

RAS

METERING

VAULT

NOTES:

1. THE EXISTING ROUGHING FILTERS HAVE BEEN PARTIALLY

DEMOLISHED AND ABANDONED AT 6’-7’ BELOW GRADE WITH

THE APPROXIMATE BOUNDARIES INDICATED IN PLAN.

CONTRACTOR SHALL REMOVE ALL PORTIONS OF THE

REMAINING STRUCTURE. CONTRACTOR SHALL IMMEDIATELY

REPORT DIFFERING SITE CONDITIONS TO THE OWNER.

2. ABANDONED ROUGHING FILTER STRUCTURE OVERLAPS THE

PROPOSED EXTENDED DETENTION POND WITH ITS BOTTOM

EXTENDING TO APPROXIMATELY ELEVATION 254.0.

CONTRACTOR SHALL REMOVE ENTIRE FOUNDATION.

3. ABANDONED ROUGHING FILTER STRUCTURE OVERLAPS THE

PROPOSED GRAVITY THICKENERS AND THICKENED SLUDGE

PUMPING STATION WITH ITS BOTTOM EXTENDING TO

APPROXIMATELY ELEVATION 256.25. CONTRACTOR SHALL

REMOVE THE REMAINING ROUGHING FILTER STRUCTURE.

4. STORAGE CONTAINERS AND CONSTRUCTION TRAILER WILL

BE REMOVED FROM THE SITE PRIOR TO START OF

CONSTRUCTION.

5. UTILIZE PORTION OF GRAVEL ROAD FOR CONSTRUCTION

ENTRANCE. REMOVE GRAVEL ROAD AS NEEDED FOR

PROPOSED IMPROVEMENTS DURING CONSTRUCTION. SEE

SHEET ES1 FOR ADDITIONAL INFORMATION.

6. REFER TO THE PROJECT MANUAL FOR TEST HOLE AND

GEOTECHNICAL INFORMATION.

7. REFER TO DWG C010 FOR SURVEY INFORMATION OF STORM

AND SEWER STRUCTURES.

8. COORDINATE WITH OWNER DURING REMOVAL OF PLANT

DRAIN PIPES. CONTRACTOR SHALL ENSURE NO ACTIVE

FLOW IS DRAINING FROM UPSTREAM AREAS DURING

INSTALLATION PROCESS. CONNECT EXISTING PIPE TO

PROPOSED MANHOLE AS SHOWN ON SHEET C033.

ABANDONED ROUGHING

FILTER T3, SEE NOTE 1 AND 3

ABANDONED ROUGHING

FILTER T4, SEE NOTE 1 AND 2

SEE NOTE 4

REMOVE 4" W3 TO

EXTENTS SHOWN

REMOVE W3

REMOVE 15" PLANT DRAIN

REMOVE 15" PLANT

DRAIN

REMOVE PLANT

DRAIN MANHOLE

REMOVE PLANT

DRAIN MANHOLE

REMOVE YARD HYDRANT

AND ASSOCIATED VALVES

REMOVE WATER VALVES

REMOVE PLANT

DRAIN MANHOLE

REMOVE PLANT

DRAIN MANHOLE

SEE ENLARGED PHASED

DEMO PLANS ON SHEET C014

REMOVE TREE AND

PROTECT PLANTER

BOX

LIMITS OF ASPHALT

DEMOLITION FOR

UTILITY TRENCHING

SEE NOTE 5

DEMOLISH ASPHALT PAVEMENT

FOR STORMWATER OUTFALL

INSTALLATION AND PAVEMENT

IMPROVEMENTS

REMOVE LIGHT POLE

REMOVE LIGHT POLE

LIMITS OF ASPHALT

DEMOLITION FOR

UTILITY TRENCHING

REMOVE AND REPLACE

WATER VALVE COVERS

TYP OF 3

APPROXIMATE LOCATION OF 2"

CHEMICAL LINE. CONTRACTOR

SHALL NOT DISTURB THIS LINE.

SEE ENLARGED

PHASED DEMO PLANS

ON SHEET C014

DEMOLISH SIDEWALK TO

NEAREST JOINT

REMOVE LIGHT POLE

REMOVE PLANT

DRAIN, SEE NOTE 8

PRIMARY

SCUM

LOADING

PAD

REMOVE EX CURB FOR

PROPOSED TRENCHING

REMOVE AND

REPLACE LIGHT POLE

REFER TO DWG C031 FOR

PROPOSED CONNECTION

REFER TO DWG C033 FOR PROPOSED CONNECTION

CONTRACTOR TO PROTECT LIGHT POLE

DURING 15" PLANT DRAIN REMOVAL

TX-45B-36A

TX-45B-36B

7 342

GAS

GAS

GAS

G

AS

GAS

GAS

GAS

GAS

G

AS

G

AS

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AS

GAS

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W W

W W

W W

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UNABLE TO DETERMINE

WHERE THIS PIPE COMES FROM

PAVED SHUT

TO BLDG?

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AS

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AS

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W W

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D

D

D

D

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D

D

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UGC

UGC

U G

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W

W

W

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GAS

GAS

GAS

GAS

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W

W

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YH

YH

YH

DD

D D D D D

D

W

SD SDSD

D

D

D D

D

D

FH

W

FH

OHE

OHE

OHE

OHE

OHE

OHE

OHE

OHEOHE

UGE

UGE UGE UGE

U G

E

U G

E

U G

E U

G E

U G

E

U G

E

UG

E

UG

E

U G

E U

G E

UGEUGE

UGE

UGEUGE

U G

E

U G

E

UGE

UGE

UGE

UGEUGE

UGEUGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGEUGE

UGT

UGT

UGT

UGT

UGT

UGT

UGT

UGT

U G

E U

G E

UGE

X X

X X

X X

X X

X X

X X

X X

X

X X X

X X

X X

X X

X X

XXXX

X X

X X

X X

X X

X X

X X

X X

XXXXX

X

X

XX

UGC

U G

C

U G

E

U G

E

UGE

U G

E U

G E

UGE

UGE UGE

UGE

U G

E

U G

E U

G E

OHE

OHE

OHE

OHE

OHE

OHE OHE

UGE

GAS

GAS

GAS

GAS

G

AS

GAS

GAS

GAS

GAS

G

AS

G

AS

G

AS

GAS

WWWWWW

W W

W W

W W

W W

W

W W

W

DDDDDDD DDDDDDD

SD

SD

SD

SD

SD SDSD SD

SDSD

D D

D D

D D

D D

D D

D D

D D

D D

D D DD D D

W

UNABLE TO DETERMINE

WHERE THIS PIPE COMES FROM

PAVED SHUT

TO BLDG?

DD

SD SD

LO

D

LO

D

LO

D

LOD

LOD

LOD

LO

D

LOD LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LO

DLO

D

LO

D

LO

D

LO

D

LO

D

LOD LOD LOD

LO

D

LOD

LOD

LO

D

LO

D

LOD

LOD

LO

D

LO

D

LOD

LOD

LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LOD

LO

D

LO

D

LOD

LOD

LOD

LOD

LOD

LOD

TH #34 TH #35

TH #45

TH #46

TH #47

TH #48

TH #49

NO. DATEISSUED FOR APPROVEDBY

PROJ.ENGR.

CHECKED

DRAWN

DESIGNED

SHEET

DATE:

OF

NUMBER

DRAWING

31111-098

MAY 2026

1:

A

C

D C

\A C

C D oc s\

H az en a nd S aw ye r\3

-0

_W

PC

F

So lid s Pr oc es si ng

Im p

Ph I\

Pr oj ec t F ile s\

_D es ig n\ C iv il\

C

D

EM

O

LI

TI

O N

P

LA

N

AR

EA

.d w g

L as tS av eB y:

C

TO

M

SI

C

J. HISE

IFB NO.

500640-

FY27-02

1 05/2026BID SET JTH

THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

H & S JOB

NUMBER

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

TOWN OF LEESBURG

LEESBURG, VIRGINIA

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING

IMPROVEMENTS - PHASE 1

0 20'10

SCALE: 1" = 20'

ADMINISTRATION

BUILDING

SOLIDS

PROCESSING

BUILDING

DIGESTED SLUDGE

STORAGE TANK B

SOLIDS PROCESSING

ODOR CONTROL RTO

SLUDGE

HOLDING

TANK

DIGESTER GAS

VALVE VAULT

C012

CIVIL

DEMOLITION PLAN - AREA 2

N. CAROLLO

N. CAROLLO

D. SKEGGS

M

AT

C H

LI

N

E

SE

E

SH

EE

T

C

KEYSTO

N

E D R

RUSSELL BRANCH PKWY SE

PUBLIC

WORKS

BUILDING

PROPERTY LINE

DIGESTED SLUDGE

STORAGE TANK A

NOTES:

1. REFER TO THE PROJECT MANUAL FOR TEST

HOLE AND GEOTECHNICAL INFORMATION.

2. CONTRACTOR SHALL USE CAUTION WHEN

PERFORMING TRENCHING OPERATIONS NEAR

LIGHT POLE. CONTRACTOR SHALL

COORDINATE WITH PLANT STAFF FOR

SHORING AND PROTECTION OF LIGHT POLE.

3. REFER TO DWG C010 FOR SURVEY

INFORMATION OF STORM AND SEWER

STRUCTURES.

4. REFER TO DWG C010 FOR SURVEY

INFORMATION OF STORM AND SEWER

STRUCTURES.

5. DURING PAVEMENT AND UTILITY DEMOLITION

ACTIVITIES, CONTRACTOR SHALL MAINTAIN

TRAVELWAY FOR DELIVERY VEHICLES TO

ACCESS SOLIDS PROCESSING BUILDING. OPEN

TRENCHES SHALL BE COVERED BY DOUBLE 1"

STEEL PLATES CAPABLE OF SUPPORTING H-20

TRAFFIC LOADING. CONTRACTOR SHALL

COORDINATE WITH OWNER TO DETERMINE

ANTICIPATED DELIVERY SCHEDULE AND

PROVIDE CLEAN WORK SITE FOR DELIVERY

VEHICLE TO CROSS ANY OPEN TRENCH. OPEN

TRENCHES SHALL BE COVERED WITH THE

STEEL PLATES AT THE END OF EACH WORK

DAY.

LIMITS OF PAVEMENT

DEMOLITION FOR

UTILITY TRENCHING,

TYP

SEE NOTE 2

DEMOLISH CONTROL

PANEL, SEE DWG M550

MISCELLANEOUS EQUIPMENT FROM

SURVEY SHALL BE MOVED OUT OF

CONSTRUCTION AREA PRIOR TO

START OF CONSTRUCTION

DEMOLISH GAS BURNER,

SEE DWG M550

EXISTING VAULT, ACCESS

HATCH, AND VENT TO

REMAIN

REMOVE AND REPLACE

SIDEWALK TO NEAREST

JOINT

SEE PLANS PREPARED BY KIMLEY HORN TITLED

"DIGESTER SLUDGE STORAGE TANK B REPLACEMENT"

FOR TANK AND VAULT DEMOLITION LIMITS.

PROVIDE STEEL PLATE FOR DELIVERY VEHICLES

CROSSING WORK ZONE, SEE NOTE 5

PROVIDE STEEL PLATE FOR DELIVERY VEHICLES

CROSSING WORK ZONE, SEE NOTE 5

8 342

SD

SD

SD

SD

SD

SD

SD

SD

D

D D D D D D

D

D

D

D

D

D

D

D

W W

W

SD

D

D

D

W W

D D

SD

W

W

W

D D

D D

D

W

D

SD

SD

D

D D

D D

D

GAS

W

G

AS

SD

D D

D D

D

D D

D

D

SD

SD

SD

SD

YH

YH

D D

D D

D D

D D

D

D

D

D

D

D

D

FH

SD

SD

SD

D D

OF

DD

DD

DD

D D

D D

D D

W

SD

D

D

D

D

SD

OF

FH

YH

YH

YH

YH

W

W W

W W

W

D D

D D

D D

D D

X

X

X

X

X X

X X

X X

X X

X

UGE UGE UGE

UGE

UGE

UGE

U G

E

U G

E

U G

E U

G E

UG

E

U G

E U

G E

U G

E

U G

E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

UG

E

U G

E U

G E

U G

E

UGE

UGE

U G

E

UGE

UGE

UGE

U G

E U

G E

U G

E U

G E

U G

E

UG

E

UGE

UG

E

UGE

UGE

UGE

U G

E

UGE UGE

UGE

UGE

U G

E U

G E

U G

E

UGE

U G

E

U G

E U

G E

U G

E

U G

E

UGE

U G

E

UGE

UGE

UGE

UGE

UGE UGE

UGE UGE

UGE

UGE

UGE

UGE

UGE

U G

E U

G E

UGE UGE

UGE

UG

E

UGE

UGE

UGE

UGE

UGE UGE UGE UGE UGE UGE

UGE UGE UGE UGE UGE UGE

UGE

U G

E U

G E

UGE

U G

E U

G E

U G

E

UG

E

UG

E

U G

E

UG

E

UG

E

UGE

UGE UGE

UGE

UGE

UGE

UGE

U G

E U

G E

U G

E

UGE

UGE

UGE

UGE

UGE

UGE

U G

E U

G E

U G

E U

G E

U G

E U

G E

UGE

UGE

UGE UGE UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

U G

E U

G E

U G

E U

G E

UG

E

UGE

U G

E U

G E

UGEUGE

UGEUGE

E E

E

E

E

E

E

E

E

E

E

E E

E

E E

E

E

E

E

E

E

E

E

E

E

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LOD

LOD

LOD

LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

NO. DATEISSUED FOR APPROVEDBY

PROJ.ENGR.

CHECKED

DRAWN

DESIGNED

SHEET

DATE:

OF

NUMBER

DRAWING

31111-098

MAY 2026

1:

A

C

D C

\A C

C D oc s\

H az en a nd S aw ye r\3

-0

_W

PC

F

So lid s Pr oc es si ng

Im p

Ph I\

Pr oj ec t F ile s\

_D es ig n\ C iv il\

C

D

EM

O

LI

TI

O N

P

LA

N

AR

EA

.d w g

L as tS av eB y:

C

TO

M

SI

C

J. HISE

IFB NO.

500640-

FY27-02

1 05/2026BID SET JTH

THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

H & S JOB

NUMBER

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

TOWN OF LEESBURG

LEESBURG, VIRGINIA

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING

IMPROVEMENTS - PHASE 1

0 20'10

SCALE: 1" = 20'

C013

CIVIL

DEMOLITION PLAN - AREA 3

N. CAROLLO

N. CAROLLO

D. SKEGGS

RECYCLE

EQUALIZATION

BASIN

ROUGHING

RECIRC

STATION

EQUALIZATION

RETURN METERING

VAULT

GRAVITY

FILTER

BUILDING

SOLIDS

STORAGE PAD

ENCLOSURE

INFLUENT

PUMPING

STATION

CHEMICAL

BUILDING

GRAVITY

FILTER FLOW

SPLITTER

ELECTRICAL

BUILDING NO. 2

FUEL TANK

GENERATOR

ZONE AE

ZONE AE

REGULATORY FLOODWAY

ZONE AE

R

EG

U

LATO

R

Y FLO

O D

W

AY

EL. = 241.6

ZONE X

(0.2% ANNUAL CHANCE

FLOOD HAZARD)

MATCHLINE SEE SHEET C011

NOTES:

1. REFER TO THE PROJECT MANUAL FOR

TEST HOLE AND GEOTECHNICAL

INFORMATION.

2. REFER TO DWG C010 FOR SURVEY

INFORMATION OF STORM AND SEWER

STRUCTURES.

REMOVE AND REPLACE

CURB AND GUTTER TO

NEAREST JOINT

LIMITS OF ASPHALT

DEMOLITION FOR

UTILITY TRENCHING

DEMOLISH ASPHALT PAVEMENT

FOR STORMWATER OUTFALL

INSTALLATION AND PAVEMENT

IMPROVEMENTS

REMOVE AND REPLACE

SIDEWALK TO NEAREST

JOINT

9 342

10 342

11 342

12 342

13 342

14 342

TH #3

TH #5

TH #38

TH #4

2+

0+00

1+

2+

0+00

0+52

DD

DD

SDSD

SDSD

D

D

D

D

D

D

D

D

D DD D

D D D DD D D D

D D DD D D

D

D

D

D

D

D

D

D

D

D

D

D

D D

D D

DD

D

D D

D

SDSD

DDD

DDD

D

D

D

D

D

D

D

D

DD

DD

DD

SD

SS

SS

D

D D D

D

D

D

D

D

FH

YH

D

D D

D

D

D

OF

YH YH

E

E

E

E

B #1

B #2

B #3

LO

D

LO

DLO

D

LO

D

LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LODLODLODLOD

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LOD

LOD

LOD

LOD

LOD

LOD

LOD LOD LOD LOD

LO

D

LO

D

LO

D

LO

D

LOD

LOD

LO

D

LO

D

LOD LOD

LO

D

LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LODLODLOD

LO

DLO

D

LO

D

LODLOD

LODLOD

LO

D

TH #1

TH #2

TH #3

TH #4

TH #5

TH #6

TH #7

TH #8

TH #9

TH #10

TH #11

TH #12

TH #13

TH #15

TH #16TH #17

TH #18

TH #19

TH #20

TH #21

TH #23TH #24

TH #25TH #26

TH #22

TH #27

TH #28

TH #29

TH #28A

TH #36

TH# 37

TH #38

TH #39

TH #40

TH #41

TH #42

TH #43

TH #44

R =50.0'

R =120.0'

R =40.0'

MAINTENANCE

STORAGE

BUILDING

LEGEND

PERMANENT POOL

MILL AND OVERLAY

FULL DEPTH PAVEMENT

CONCRETE PAVEMENT

GRAVEL/RIPRAP

SIDEWALK

NO. DATEISSUED FOR APPROVEDBY

PROJ.ENGR.

CHECKED

DRAWN

DESIGNED

SHEET

DATE:

OF

NUMBER

DRAWING

31111-098

MAY 2026

1:

A

C

D C

\A C

C D oc s\

H az en a nd S aw ye r\3

-0

_W

PC

F

So lid s Pr oc es si ng

Im p

Ph I\

Pr oj ec t F ile s\

_D es ig n\ C iv il\

C

SI

TE

P

LA

N

AR

EA

.d w g L as tS av eB y:

C

TO

M

SI

C

J. HISE

IFB NO.

500640-

FY27-02

1 05/2026BID SET JTH

THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

H & S JOB

NUMBER

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

TOWN OF LEESBURG

LEESBURG, VIRGINIA

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING

IMPROVEMENTS - PHASE 1

0 20'10

SCALE: 1" = 20'

FUTURE REACTOR

BASIN G

GT-A

[300]

GT-B

[320]

GT-C

[340]

SOLIDS

ELECTRICAL

BUILDING

[450]

PRIMARY

CLARIFIER A

PRIMARY

CLARIFIER B

PRIMARY

CLARIFIER C

DIGESTER

BUILDING

PRIMARY

SCUM

SCREENING

BUILDING

MAINTENANCE

SHOP

EMERGENCY

BLOWER

BUILDING

C021

CIVIL

SITE PLAN - AREA 1

N. CAROLLO

A. DARNELL

D. SKEGGS

FUTURE

GT

M

AT

C H

LI

N

E

SE

E

SH

EE

T

C

REACTOR

BASINS

C AND D

REACTOR

BASINS

E AND F

BNR FLOW

SPLITTER

STRUCTURE

PROCESS

BLOWER

BUILDING

DIURNAL

EQUALIZATION

FLOW SPLITTER

METHANOL

STORAGE AND

PUMPING

RAS/WAS

PUMPING

STATION

THICKENED

SLUDGE

PUMPING

STATION

[200]

20.0'

4.0'

MATCHLINE SEE SHEET C023

SECONDARY

CLARIFIERS C

AND D

RAS

METERING

VAULT

12.0'

SPLITTER BOX

FULL DEPTH ASPHALT PAVEMENT,

SEE DETAIL, DWG CD2 PAVEMENT JUNCTION,

SEE DETAIL

DWG, CD2

VDOT STD CG-6

5' CONCRETE WALKWAY,

SEE DETAIL

DWG CD1

4' CONCRETE VALLEY GUTTER

SEE DETAIL DWG CD2

PAVEMENT JUNCTION,

SEE DETAIL

DWG CD2

VDOT STD CG-6

MILL AND OVERLAY, MILL

1.5" TO PROVIDE MINIMUM

1.5" SM-9.5A SURFACE

COURSE

EXTENDED DETENTION POND

BMP, SEE C027 AND SW1 FOR

DETAILS

4' CONCRETE WALKWAY,

TYP, SEE DETAIL

DWG CD1

ELECTRICAL TRANSFORMER

TYP OF 3, SEE ELEC DWGS

BOLLARD TYPE 3, TYP OF 2,

SEE DETAIL

DWG CD1

CONCRETE PAVEMENT,

SEE DETAIL

DWG CD2

BOLLARD TYPE 1, TYP OF 8,

SEE DETAIL

DWG CD1

FUTURE BNR AND CLARIFIERS

ELECTRICAL BUILDING

12' MAINTENANCE ACCESS, TYP

12" CONCRETE

FOREBAY WALL, SEE

SW1 AND CD4 DWGS

67 LF, 12" WIDE REINFORCED

CONCRETE RETAINING WALL, SEE

C027 AND CD4 FOR DETAILS

8.0'

4.0'

4.0'

4.0'

VDOT STD CG-2, TYP

PAVEMENT JUNCTION WITH

RESURFACING OF EXISTING

PAVEMENT, SEE DETAIL

DWG CD2

BOLLARD TYPE 3,

SEE DETAIL DWG CD1

R=50.0'

R=

.0

R=12.0'

20.3'

LIMITS OF DISTURBANCE, TYP

NOTES:

1. SEE STORMWATER MANAGEMENT DWGS FOR

STORMWATER SWALE, PIPING, AND DRAINAGE

STRUCTURE DETAILS.

2. SEE YARD PIPING DWGS FOR DETAILS.

3. REFER TO DWG C010 FOR SURVEY INFORMATION

OF STORM AND SEWER STRUCTURES.

4. REFER TO ELECTRICAL DWGS FOR REMOVAL AND

REPLACEMENT OF LIGHT POLE.

BUILDING FOUNDATION, TYP

YARD PIPING, SEE

TYPICAL TRENCH DETAIL,

DWG CD1

MODIFIED VDOT EW-1

SEE DETAIL, DWG C027

FULL DEPTH ASPHALT

PAVEMENT, SEE DETAIL,

DWG CD2

C-32-0556

C-32-0520

C-32-0540

C-32-0520

C-32-0555

PAVEMENT JUNCTION,

SEE DETAIL

DWG CD2

C-32-0556

5.0'

5.0'

[500]

C-32-0556

C-32-0520

C-32-0555

PAVEMENT JUNCTION W/

RESURFACING OF EXISTING

PAVEMENT, SEE DETAIL,

DWG CD2

C-32-0555

GTSP

[400]

GTSP

[400]

4" VDOT #57 STONE W/

TYPE 1 SEPARATOR

GEOTEXTILE AT BASE OF

STONE LAYER

RAISE AND REPLACE WATER

VALVE COVERS WITH TRAFFIC

RATED WATER VALVE COVERS,

TYP OF 3

SEE NOTE 1

C-32-0540

C-32-0540

PROPOSED CONCRETE

STAIRS WITH HANDRAILS,

SEE STRU DWGS

RAISE AND REPLACE WATER

VALVE COVERS WITH TRAFFIC

RATED WATER VALVE COVERS,

TYP OF 3

15.8'

29.7'

PRIMARY

SLUDGE

PUMPING

STATION

PRIMARY

SCUM

LOADING

PAD

VDOT STD CG-6

SEE NOTE 4

VDOT STG CG-6

PRIMARY SLUDGE

PUMPING STATION NO. 1

[100]

BOLLARD TYPE 1, TYP OF

16, SEE DETAIL DWG CD1

C-32-0540

12 FOOT MAINTENANCE PATH ACCESS AND

EMERGENCY SPILLWAY. 46 SQ YDS OF VDOT

STANDARD EC-3, TYPE 2 MATTING

TOP OF EMBANKMENT

R12.0'

15 342

DDDDDDD DDDDDDD

SD

SD

SD

SD SDSD SD

SDSD

D D

D D

D D

D D

D D

D D

D D

D D

D D DD D D

DD

SD SD

X X

X X

X X

X X

X X

X X

X X

X

X X X

X X

X X

X X

X X

XXXX

X X

X X

X X

X X

X X

X X

X X

XXXXX

X

X

XX

DDDDDDD DDDDDDD

SD

SD

SD

SD

SD SDSD SD

SDSD

D D

D D

D D

D D

D D

D D

D D

D D

D D DD D D

DD

SD SD

LO

D

LO

D

LO

D

LOD

LOD

LOD

LO

D

LOD LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LO

DLO

D

LO

D

LO

D

LO

D

LO

D

LOD LOD LOD

LO

D

LOD

LOD

LO

D

LO

D

LOD

LOD

LO

D

LO

D

LOD

LOD

LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LOD

LO

D

LO

D

LOD

LOD

LOD

LOD

LOD

LOD

30+00

+4

B #4

X X

N O

TE 5

NO. DATEISSUED FOR APPROVEDBY

PROJ.ENGR.

CHECKED

DRAWN

DESIGNED

SHEET

DATE:

OF

NUMBER

DRAWING

31111-098

MAY 2026

1:

A

C

D C

\A C

C D oc s\

H az en a nd S aw ye r\3

-0

_W

PC

F

So lid s Pr oc es si ng

Im p

Ph I\

Pr oj ec t F ile s\

_D es ig n\ C iv il\

C

S

IT

E

PL

AN

AR

EA

.d w g L as tS av eB y:

C

TO

M

SI

C

J. HISE

IFB NO.

500640-

FY27-02

1 05/2026BID SET JTH

THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

H & S JOB

NUMBER

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

TOWN OF LEESBURG

LEESBURG, VIRGINIA

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING

IMPROVEMENTS - PHASE 1

0 20'10

SCALE: 1" = 20'

WASTE GAS FLARE

ADMINISTRATION

BUILDING

SOLIDS

PROCESSING

BUILDING

DIGESTED SLUDGE

STORAGE TANK B

SOLIDS PROCESSING

ODOR CONTROL RTO

SLUDGE

HOLDING

TANK

C022

CIVIL

SITE PLAN - AREA 2

N. CAROLLO

A. DARNELL

D. SKEGGS

M

AT

C H

LI

N

E

SE

E

SH

EE

T

C

KEYSTO

N

E D R

RUSSELL BRANCH PKWY SE

SETBACK FROM STRUCTURES

MIN 50' RADIUS FROM CL OF FLARE,

SEE NOTE 4

PUBLIC

WORKS

BUILDING

20' SIDE

SETBACK

PROPERTY LINE

DIGESTED SLUDGE

STORAGE TANK A

DIGESTED

SLUDGE

MIXING BLDG

[650]

' F

R O

N T

SE

TB

AC

K

LEGEND

PERMANENT POOL

MILL AND OVERLAY

FULL DEPTH PAVEMENT

CONCRETE PAVEMENT

GRAVEL/RIPRAP

SIDEWALK

NOTES:

1. SEE STORMWATER MANAGEMENT DWGS FOR

STORMWATER SWALE, PIPING, AND DRAINAGE

STRUCTURE DETAILS.

2. SEE YARD PIPING DWGS FOR DETAILS.

3. REFER TO DWG C010 FOR SURVEY INFORMATION

OF STORM AND SEWER STRUCTURES.

4. WASTE GAS FLARE PAD TO BE LOCATED AT LEAST

50 FEET AWAY FROM ANY STRUCTURE PER

9VAC25-790-550

5. CENTER OF FLARE TO MAINTAIN A MINIMUM OF 28'

DISTANCE FROM THE ADJACENT UTILITY POLES

AND WIRES

5.00'

2' VALLEY GUTTER, SEE

DETAIL, DWG CD2

4" VDOT #57 STONE W/ TYPE 1

SEPARATOR GEOTEXTILE AT

BASE OF STONE LAYER

5.

LIMITS OF DISTURBANCE, TYP

RESTORE ASPHALT

PAVEMENT OVER ELEC

DUCTBANK, SEE TYPICAL

TRENCH DETAIL,

DWG CD2 C-01-0106

5' CONCRETE WALKWAY,

SEE DETAIL,

DWG CD1 C-32-0520

RESTORE ASPHALT

PAVEMENT OVER ELEC

DUCTBANK, SEE TYPICAL

TRENCH DETAIL, DWG

CD2 C-01-0106

CONCRETE PAVEMENT,

SEE DETAIL

DWG CD2 C-32-0556

5' CONCRETE WALKWAY,

SEE DETAIL

DWG CD1 C-32-0520

MILL AND OVERLAY, MILL

1.5" TO PROVIDE MINIMUM

1.5" SM-9.5A SURFACE

COURSE

RESTORE ASPHALT

PAVEMENT OVER ELEC

DUCTBANK, SEE TYPICAL

TRENCH DETAIL, DWG

CD2 C-01-0106

MILL AND OVERLAY, MILL

1.5" TO PROVIDE MINIMUM

1.5" SM-9.5A SURFACE

COURSE

RESTORE ASPHALT

PAVEMENT OVER ELEC

DUCTBANK, SEE TYPICAL

TRENCH DETAIL, DWG CD2

C-01-0106

BOLLARD TYPE 2, TYP OF 2,

SEE DETAIL

DWG CD1 C-32-0540

[550]

REPLACE CONCRETE

WALKWAY TO NEAREST

JOINT, SEE DETAIL

DWG CD1

C-32-0520

SEE PLANS PREPARED BY KIMLEY HORN TITLED

"DIGESTER SLUDGE STORAGE TANK B REPLACEMENT"

FOR TANK AND VAULT CONSTRUCTION LIMITS.

BOLLARD TYPE 1, TYP OF 14,

SEE DETAIL,

DWG CD1 C-32-0540

17.00'

.0

0'

CHAIN LINK FENCE WITH DOUBLE SWING GATE,

AND 10" OPENING WITH BLACK PRIVACY SLATS

SEE DETAIL SS-18, DWG CD1

4" VDOT #57 STONE W/ TYPE 1 SEPERATOR

GEOTEXILE AT BASE OF STONE LAYER

16 342

2+

X

X

X

X

X X

X X

X X

X X

X

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LOD

LOD

LOD

LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

SD

SD

SD

SD

SD

SD

SD

SD

SD

SD

SD

SD

SD

SD

SD

SD

SD

SD

YH

YH

FH

SD

SD

SD

OF

SD

SD

OF

FH

YH

YH

YH

YH

E E

E

E

E

E

E

E

E

E

E

E E

E

E E

E

E

E

E

E

E

E

E

E

E

NO. DATEISSUED FOR APPROVEDBY

PROJ.ENGR.

CHECKED

DRAWN

DESIGNED

SHEET

DATE:

OF

NUMBER

DRAWING

31111-098

MAY 2026

1:

A

C

D C

\A C

C D oc s\

H az en a nd S aw ye r\3

-0

_W

PC

F

So lid s Pr oc es si ng

Im p

Ph I\

Pr oj ec t F ile s\

_D es ig n\ C iv il\

C

S

IT

E

PL

AN

AR

EA

.d w g L as tS av eB y:

C

TO

M

SI

C

J. HISE

IFB NO.

500640-

FY27-02

1 05/2026BID SET JTH

THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

H & S JOB

NUMBER

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

TOWN OF LEESBURG

LEESBURG, VIRGINIA

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING

IMPROVEMENTS - PHASE 1

0 20'10

SCALE: 1" = 20'

C023

CIVIL

SITE PLAN - AREA 3

N. CAROLLO

A. DARNELL

D. SKEGGS

RECYCLE

EQUALIZATION

BASIN

ROUGHING

RECIRC

STATION

EQUALIZATION

RETURN METERING

VAULT

GRAVITY

FILTER

BUILDING

SOLIDS

STORAGE PAD

ENCLOSURE

INFLUENT

PUMPING

STATION

CHEMICAL

BUILDING

GRAVITY

FILTER FLOW

SPLITTER

ELECTRICAL

BUILDING NO. 2

FUEL TANK

GENERATOR

FUTURE

DENITRIFICATION

FILTERS

MATCHLINE SEE SHEET C021

LEGEND

PERMANENT POOL

MILL AND OVERLAY

FULL DEPTH PAVEMENT

CONCRETE PAVEMENT

GRAVEL/RIPRAP

SIDEWALK

NOTES:

1. SEE YARD PIPING DWGS FOR DETAILS.

2. REFER TO DWG C010 FOR SURVEY INFORMATION

OF STORM AND SEWER STRUCTURES.

REPLACE CONCRETE

WALKWAY TO NEAREST

JOINT, SEE DETAIL, DWG

CD1

REPLACE CURB AND

GUTTER PER VDOT STD

CG-6 TO NEAREST JOINT

ELEC DUCTBANK, TYP,

SEE ELEC DWGS

LIMITS OF DISTURBANCE, TYP

C-32-0520

PAVEMENT JUNCTION WITH

RESURFACING OF EXISTING

PAVEMENT, SEE DETAIL

DWG CD2 C-32-0555

17 342

LO

D

LO

DLO

D

LO

D

LOD

LO

D

LO

D

LO

D

LO

D

LODLODLODLOD

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LOD

LOD

LOD

LOD

LOD

LOD

LOD LOD LOD LOD

LO

D

LO

D

LO

D

LO

D

LOD

LOD

LO

D

LO

D

LOD LOD

LO

D

LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LODLODLOD

LO

DLO

D

LO

D

LODLOD

LODLOD

LO

D

DD

G

AS

GAS

GAS

WW

W

WWW

WWWWW

W

RECLAIMED WATER

DD

UNABLE TO DETERMINE

WHERE THIS PIPE COMES FROM

INVERT FROM

STORM NOT

PICKED UP

SDSD

SDSD

D

D

D

D

D

D

D

D

D DD D

D D D DD D D D

D D DD D D

D

D

D

D

D

D

D

D

D

D

D

D

D D

D D

DD

D

D D

D

W

SDSD

DDD

DDD

D

D

D

D

D

D

D

D

DD

DD

DD

AIR

RELEASE

VALVE

SD

D

W

D D

D

SS

D

D D

D D

D D

D

W

D D D

W

D

D D D D D

D

D

D

D

W W

W

D D

D D

D

D D

D D D

D D

D

D

D

D

D

D

D

D

D

W

FH

YH

D

D D

D

D

D

W W

OF

D D D D D D

YH YH

U G

E U

G E

UGEUGEUGE UGEUGE

UGE

U G

E U

G E

U G

E

UG

E

UGE

UGE

UGE

UGE

UGE

UGE

UG

E

U G

E U

G E

U G

E U

G E

U G

E U

G E

UG

E

U G

E U

G E

U G

E U

G E

U G

E U

G E

UG

E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E

UGEUGE UGEUGE

U G

E

UGE

U G

E

UGE

U G

E

UGE

UG

E

UGEUGEUGE

UGE

UGE

UGE

UGE

UGE

UGE

U G

E

UGE

UGE

UGE UGE UGE UGE UGE

UGE

U G

E U

G E

U G

E U

G E

U G

E

UG

E

UGE

UGE

UGE

UGE

U G

E

U G

E U

G E

U G

E U

G E

U G

E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E

U G

E

UG

E

UGE

UGE

UGE UGE UGE UGE UGE

UGE

U G

E U

G E

U G

E U

G E

U G

E

UG

E

UGE

UGE

UGE

UGE

UGE UGE UGE UGE UGE

UGE

U G

E U

G E

U G

E U

G E

U G

E

UG

E

UGE

UGE

U G

E U

G E

U G

E U

G E

U G

E

UGEUGE

U G

E U

G E

U G

E

B #1

B #2

B #3

A-6A A-6

A-5

A-4

A-3

A-2

A-7

A-8

A-1

M

AT

C H

LI

N

E

SE

E

SH

EE

T

C

NOTES:

1. SEE SHEETS SW1 AND SW2 FOR STORMWATER

PROFILES AND DRAINAGE DESCRIPTIONS.

2. PROVIDE INLET PROTECTION UNTIL AREA UPLAND

FROM ALL INLETS HAS BEEN STABILIZED.

3. REFER TO SHEETS ES1 THROUGH ES6 FOR

EROSION AND SEDIMENT CONTROL NOTES AND

DETAILS.

4. REPLACE STORM PIPING TO NEAREST RCP JOINT

AS REQUIRED FOR NEW DRAINAGE STRUCTURE

INSTALLATION.

5. SEE YARD PIPING DWGS FOR DETAILS.

ELECTRICAL

BUILDING

FFE = 268.17

[450]

TSPS

FFE = 268.17

[200]

SEE ENLARGED PLAN 1 ON SHEET C026

AND L001

SEE ENLARGED PLAN 2 ON SHEET C027 AND L002

LIMITS OF GRADING, TYP

LIMITS OF DISTURBANCE, TYP

PRIMARY

CLARIFIER A

REACTOR

BASINS C

AND D

REACTOR

BASINS E

AND F

PRIMARY

CLARIFIER B

PRIMARY

CLARIFIER C

SECONDARY

CLARIFIERS C

AND D

FUTURE

REACTOR

BASIN G

GT-A

[300]

GT-B

[320]

GT-C

[340]

FUTURE

GT

ELEC DUCT BANK, TYP

SEE ELEC DWGS

DIGESTER

BUILDING

ELEC DUCTBANK, TYP

SEE ELEC DWGS

BNR FLOW

SPLITTER

STRUCTURE

PROCESS

BLOWER

BUILDING

DIURNAL

EQUALIZATION

FLOW SPLITTER

METHANOL

STORAGE AND

PUMPING

RAS/WAS

PUMPING

STATION

EMERGENCY

BLOWER BUILDING

MAINTENANCE

STORAGE

BUILDING

MAINTENANCE

SHOP

SOLIDS

STORAGE PAD

ENCLOSURE

LIMITS OF

DISTURBANCE

NO. DATEISSUED FOR APPROVEDBY

PROJ.ENGR.

CHECKED

DRAWN

DESIGNED

SHEET

DATE:

OF

NUMBER

DRAWING

31111-098

MAY 2026

1:

A

C

D C

\A C

C D oc s\

H az en a nd S aw ye r\3

-0

_W

PC

F

So lid s Pr oc es si ng

Im p

Ph I\

Pr oj ec t F ile s\

_D es ig n\ C iv il\

C

G

R

AD

IN

G

P

LA

N

AR

EA

.d w g

L as tS av eB y:

C

TO

M

SI

C

J. HISE

IFB NO.

500640-

FY27-02

1 05/2026BID SET JTH

THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

H & S JOB

NUMBER

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

TOWN OF LEESBURG

LEESBURG, VIRGINIA

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING

IMPROVEMENTS - PHASE 1

C024

CIVIL

GRADING PLAN - AREA 1

N. CAROLLO

N. CAROLLO

D. SKEGGS

SEE ENLARGED PLAN ON SHEET C028

EXTENDED DETENTION POND

BMP (WATER QUANTITY ONLY),

SEE DWG SW4 FOR DETAILS

PRIMARY SLUDGE

PUMPING STATION NO. 1

[100]

[250]

A-9

A-0

0 20'10

SCALE: 1" = 20'

18 342

GAS

GAS

G

AS

GAS

GAS

GAS

GAS

G

AS

G

AS

G

AS

GAS

WWWWWW

W W

W W

W W

W W

W

W W

W

DDDDDDD DDDDDDD

SD

SD

SD

SD

SD SDSD SD

SDSD

D D

D D

D D

D D

D D

D D

D D

D D

D D DD D D

W

UNABLE TO DETERMINE

WHERE THIS PIPE COMES FROM

PAVED SHUT

TO BLDG?

DD

SD SD

G

AS

G

AS

G

AS

G

AS

D

W W

W W

W W

D

D

D D

D

D

W

D

W

D

D

D

D

D

D

D

D

D

D

D

SD

UGC

UGC

UGC

U G

C

W

W

W

W

G

AS

GAS

GAS

GAS

GAS

W W

FH

W

W

FH

D

D D

D D

YH

D

YH

YH

YH

DD

D D D D D

D

W

SD SDSD

D

D

D D

D

D

FH

W

FH

OHE

OHE

OHE

OHE

OHE

OHE

OHE

OHEOHE

UGE

UGE UGE UGE

U G

E

U G

E

U G

E U

G E

U G

E

U G

E

UG

E

UG

E

U G

E U

G E

UGEUGE

UGE

UGEUGE

U G

E

U G

E

UGE

UGE

UGE

UGEUGE

UGEUGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGE

UGEUGE

UGT

UGT

UGT

UGT

UGT

UGT

UGT

UGT

U G

E U

G E

UGE

X X

X X

X X

X X

X X

X X

X X

XXXXX

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 X

X X

XXXX

LO

D

LO

D

LO

D

LOD

LOD

LOD

LO

D

LOD LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LO

DLO

D

LO

D

LO

D

LO

D

LO

D

LOD LOD LOD

LO

D

LOD

LOD

LO

D

LO

D

LOD

LOD

LO

D

LO

D

LOD

LOD

LOD

LO

D

LO

D

LO

D

LO

D

LO

D

LO

D

LOD

LOD

LO

D

LO

D

LOD

LOD

LOD

LOD

LOD

LOD

B #4

X X

263264

26526

273274

1 26

9 25

264 263

C025

CIVIL

GRADING PLAN - AREA 2

N. CAROLLO

N. CAROLLO

D. SKEGGS

M

AT

C H

LI

N

E

SE

E

SH

EE

T

C

DIGESTED

SLUDGE MIXING

BUILDING

[650]

FFE = 260.83

NOTES:

1. SEE SHEETS SW1 AND SW2 FOR STORMWATER

PROFILES AND DRAINAGE DESCRIPTIONS.

2. PROVIDE INLET PROTECTION UNTIL AREA UPLAND

FROM ALL INLETS HAS BEEN STABILIZED.

3. REFER TO SHEETS ES1 THROUGH ES6 FOR

EROSION AND SEDIMENT CONTROL NOTES AND

DETAILS.

4. REPLACE STORM PIPING TO NEAREST RCP JOINT

AS REQUIRED FOR NEW DRAINAGE STRUCTURE

INSTALLATION.

5. SEE YARD PIPING DWGS FOR DETAILS.

6. REFER TO DWG C010 FOR SURVEY INFORMATION

OF STORM AND SEWER STRUCTURES.

7. CONTRACTORS SHALL MAINTAIN ACCESS TO ALL

ENTRANCES AND EXITS TO SOLIDS PROCESSING

BUILDING DURING CONSTRUCTION FOR CHEMICAL

DELIVERY AND SOLIDS LOAD OUT.

SEE ENLARGED PLAN 3 ON SHEET C028

SEE ENLARGED PLAN 4 ON SHEET C028

DIGESTED SLUDGE

STORAGE TANK DIGESTED SLUDGE

STORAGE TANK

ADMINISTRATION

BUILDING

SOLIDS

PROCESSING

BUILDING

PUBLIC

WORKS

BUILDING

DIGESTER

BUILDING

RUSSEL BRANCH PKWY SE

KEYSTO

N

E D R

SOLIDS PROCESSING

ODOR CONTROL RTO

ELEC DUCTBANK, TYP

SEE ELEC DWGS.

LIMITS OF DISTURBANCE TYP

NO. DATEISSUED FOR APPROVEDBY

PROJ.ENGR.

CHECKED

DRAWN

DESIGNED

SHEET

DATE:

OF

NUMBER

DRAWING

31111-098

MAY 2026

1:

A

C

D C

\A C

C D oc s\

H az en a nd S aw ye r\3

-0

_W

PC

F

So lid s Pr oc es si ng

Im p

Ph I\

Pr oj ec t F ile s\

_D es ig n\ C iv il\

C

G

R

AD

IN

G

P

LA

N

AR

EA

.d w g

L as tS av eB y:

C

TO

M

SI

C

J. HISE

IFB NO.

500640-

FY27-02

1 05/2026BID SET JTH

THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

H & S JOB

NUMBER

HAZEN AND SAWYER

1 SOUTH STREET, SUITE 1150

BALTIMORE, MARYLAND 21202

TOWN OF LEESBURG

LEESBURG, VIRGINIA

WATER POLLUTION CONTROL FACILITY

SOLIDS PROCESSING

IMPROVEMENTS - PHASE 1

SEE NOTE 4

SEE NOTE 7

SEE NOTE 7

SEE NOTE 7

0 20'10

SCALE: 1" = 20'

19 342

D D

WWWWW

D

D

D

D

DD

DD

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D D

D D

D D

D D

D D

D D

D D

D D

D D

D D

D D

D D

D D

D

D

D

D

D

D

D

D

D

D

D

D

DD

DD

D D

D D

D D

D

D D D

D

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E

U G

E U

G E

U G

E U

G E

U G

E U

G E

U G

E

UGE UGE

UGEUGE

UGEUGE

UGEUGEUGE

UGE

UGE

UGE

UGE UGE UGE UGE UGE UGE UGE UGE UGE

UGE

U G

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G E

U G

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G E

U G

E U

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U G

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U…