Attachment C - Leesburg WPCF_SPI-1_Bid-Ready Drawings_Vol 3 of 7.pdf

116°'

164°'

EL 254.00

EL 258.50

CONC WALL BEYOND EL 257.50

19-1 1/2" 12'-6" 19-1 1/2"

50'-9"

#6@8"

EW, T&B

6" 6"

EL 254.00

EL 261.25

#6@8"

EW, EF

#6 DWLS@8", EF

#6@8"

EW, T&B

5'-0"

2'-0" 12" 2'-0"

WALL HORZ CONST JT

S-03-0204

EL 254.00

EL 258.50

#6@8"

EW, EF

#6 DWLS@8", EF

#6@8"

EW, T&B

5'-0"

2'-0" 12" 2'-0"

WALL HORZ CONST JT

S-03-0204

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

4.

dw 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

CD4

DETAILS

CIVIL DETAILS - SHEET 4

N. CAROLLO

N. CAROLLO

D. SKEGGS

1/2 CU YD CRUSHED

STONE FOR HYDRANT

DRAINAGE

YARD HYDRANT

C-33-0641

VALVE BOX PAD,

SEE C-33-0631

3' M

IN

HANDWHEEL

2" POST HYDRANT,

ECLIPSE NO 2, BY

JOHN C. KUPFERLE

FOUNDRY OR EQUAL

VALVE BOX

2" GATE VALVE WITH

CAST IRON BODY AND

SQUARE NUT OPERATOR

TAPPING SADDLE

SIZE AS REQD

BRONZE OR COPPER

ADAPTER AS REQD, TYP

CRUSHED STONE

VALVE SUPPORT

CONCRETE THRUST BLOCK

BEARIG AGAINST 2.25 SQ FT

UNDISTURBED MATERIAL

SOLID CMU BLOCK

TYPE K SOFT

COPPER PIPE, TYP

3' NOMINAL

NOTES:

1. PRECAST STRUCTURES SHALL BE IN ACCORDANCE

WITH CONTRACT SPECIFICATION 03 40 00, 03 40

10, 03 48 00, AND 33 05 61. ALL JOINTS SHALL BE

SEALED IN ACCORDANCE WITH CONCRETE

SPECIFICATIONS.

2. CONTRACTOR SHALL COORDINATE WITH THE

SLUICE GATE MANUFACTURE FOR INSTALLATION

INSTRUCTIONS. THE SLUICE GATE SHALL BE

MOUNTED TO THE FACE OF THE CONCRETE

STRUCTURE.

3. THE MOUNTING FRAME FOR THE SLUICE GATE

SHALL BE PROVIDED BY THE SLUICE GATE

MANUFACTURER. THE CONTRACTOR SHALL

COORDINATE WITH THE SLUICE GATE

MANUFACTURER ON INSTALLATION

REQUIREMENTS OF THE MOUNTING FRAME WITH

ANCHOR BOLTS ON THE SIDE WALL OF THE

MANHOLE STRUCTURE. CONTRACTOR SHALL

COORDINATE WITH SLUICE GATE MANUFACTURER

ON SELECTED SLUICE GATE DIMENSIONS TO

CONFIRM THE SLUICE GATE CAN BE INSTALLED

AND REMOVED THROUGH THE MANHOLE OPENING

BEFORE THE TOP ECCENTRIC CONE IS INSTALLED

ONTOP OF THE MANHOLE STRUCTURE.

4. ENCAPSULATE #57 STONE WITH NON-WOVEN

NEEDLE-PUNCHED SEPARATIONS GEOTEXTILE

MIRAFI 140N OR APPROVED EQUAL LAP 2'.

MANHOLE LID OFFSET FROM

CENTER OF STRUCTURE FOR

SLUICE GATE OPERATOR ACCESS

ROD EXTENSION

ANCHOR POINTS, TYP

10" SLUICE GATE VALVE

WITH ROD EXTENSION

10" GTO OUTFLOW

10" GTO BYPASS

TO PLANT DRAIN

FUTURE 10"

GTO INFLOW 10" GTO INFLOW

10" GTO BYPASS TO PLANT DRAIN,

INV: 250.45

10" GTO OUTFLOW,

INV 249.20

RIM INV: 263.63

FUTURE 10" GTO INFLOW,

INV: 250.45

BOTTOM OF STRUCTURE

INV: 248.95

COMPACTED #57 STONE,

TYP(24" MIN)

SUBGRADE COMPACTED PER

SPECIFICATIONS, TYP

GEOTEXTILE FABRIC,

SEE NOTE 4

SECTION VIEW

PLAN VIEW

10" GTO INFLOW

INV: 249.20

DETAIL 4

N.T.S

GTO BYPASS PIPE VAULT

CD4

DETAIL 1

1" = 30'

FOREBAY WALL SECTION

CD4

DETAIL 2

1" = 30'

RETAINING WALL

CD4

5/15/2026

51 342

GRIT REMOVAL

SPLITTER BOX

PRIMARY

CLARIFIER A

PRIMARY

CLARIFIER B

PRIMARY

CLARIFIER C

PRIMARY SLUDGE

PUMPING STATION 1

SPLITTER BOX

GRAVITY

THICKENER A

GRAVITY

THICKENER B

THICKENED

SLUDGE PUMP

THICKENED

SLUDGE PUMP

DIGESTER A

DIGESTER C

DIGESTER B

DIGESTER D

RECIRCULATING

PUMP

DIGESTED SLUDGE

STORAGE TANK A

DIGESTED SLUDGE

STORAGE TANK B

SLUDGE TRANSFER

PUMP

SLUDGE TRANSFER

PUMP

RS

PI

PI

PI

PE TO BNR

PE TO BNR

PE TO BNR

PSD

PSD

PSD

OVER FLOW TO RAS/WAS

PUMPING STATION

PSD

PSD TPS

TPS TPS

TPS

RSD

RSD

DS

DS

DS

DS

DS

DIGESTER BUILDING

PO

LY

M

ER

FE

R

R

IC

C

H

LO

R

ID

E

OVER FLOW TO RAS/WAS

PUMPING STATION

SLUDGE

BLENDING

TANKS

RSD

RSD

RECIRCULATING

PUMP

RSD

RSD

RECIRCULATING

PUMP

RSD

RSD

RSD

RSD

RECIRCULATING

PUMP

PSM

PSM

PSM

SCUM

PIT

SCUM

PUMP

PS

M

SCUM

SCREEN

PRIMARY SLUDGE

PUMPING STATION 2

SCUM

PUMPS TO BSP

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

M

EC

H .rv t 5/

/2

:3

2:

P M

M001

D. RESTREPO

J. HISE

M. MAZZOCHETTE

MECHANICAL

SOLIDS PROCESS FLOW DIAGRAM - EXISTING

NOTES:

1. THIS IS A SIMPLIFIED SCHEMATIC SHOWING MAJOR

PROCESS STAGES AND EQUIPMENT ONLY. NOT ALL

COMPONENTS SUCH AS VALVES, FITTINGS,

INSTRUMENTS OR OTHER SUPPORTING SYSTEMS

ARE SHOWN.

1 BID SET 05/2026 JTH

52 342

GRAVITY

THICKENER A

DIGESTED

SLUDGE

STORAGE

TANK A

SLUDGE

TRANSFER

PUMP

SLUDGE

TRANSFER

PUMP

TPS DS

DS

DS

DS

DS

DIGESTER BUILDING

TDS

TDS

TDS TRANSFER

PUMP

TDS TRANSFER

PUMP

THICKENING

CENTRIFUGE

DIGESTER A

DIGESTER C

DIGESTER B

DIGESTER D

RECIRCULATING

PUMP

DF

RSD

RSD

RSD

RSD

RECIRCULATING

PUMP

RSD

RSD

RECIRCULATING

PUMP

RSD

RSD

RSD

RSD

RECIRCULATING

PUMP

SLUDGE

BLENDING

TANKS

TO PLANT DRAIN

OVER

FLOW TO

RAS/WAS

PUMPING

STATION

GRIT

REMOVAL

SPLITTER

BOX

PRIMARY

CLARIFIER A

PRIMARY

CLARIFIER B

PRIMARY

CLARIFIER C

PRIMARY SLUDGE

PUMPING STATION 1

RS

PI

PI

PI

PE TO BNR

PE TO

BNR

PE TO BNR

PSD

PSD

PO

LY

M

ER

FE

R

IC

C

H

LO

R

ID

E

PSM

PSM

PSM

SCUM

PIT

SCUM

PUMP

PS

M

PRIMARY SLUDGE

PUMPING STATION 2

SCUM

PUMPS

PSM

TO

B

FP

TCEN FEED

PUMP

TCEN FEED

PUMP

DS

DS

DS

DS

DSST MIXING

PUMP

DS

DS

DS

DS

DSST MIXING

PUMPDIGESTED

SLUDGE

STORAGE

TANK B

DSST MIXING BUILDING

PSD

PSD

PSD

PSD

SLUDGE

SCREEN A

SLUDGE

SCREEN B

BYPASS

SCUM

PUMPS

THICKENED SLUDGE PUMPING STATION

TPS

SPLITTER

BOX

GRAVITY

THICKENER B

OVER

FLOW TO

RAS/WAS

PUMPING

STATION

GRAVITY

THICKENER C

OVER

FLOW TO

RAS/WAS

PUMPING

STATION

TPS

TPS

TPS

PS

M

PS

M

PS

M

PSD

PSD

PSD

PSM

PSM

PSD

PSD

PSM

PS

M

FUTURE

GRAVITY

THICKENER D

PSD

HEAT

EXCHANGER

HEAT

EXCHANGER

HEAT

EXCHANGER

HEAT

EXCHANGER

SCUM

PUMPS

PS

M

PSM

SCREENINGS

DUMPSTER

SCREENINGS

DUMPSTER

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

M

EC

H .rv t 5/

/2

:3

2:

P M

M002

D. RESTREPO

J. HISE

M. MAZZOCHETTE

MECHANICAL

SOLIDS PROCESS FLOW DIAGRAM - PROPOSED

NOTES:

1. THIS IS A SIMPLIFIED SCHEMATIC SHOWING MAJOR

PROCESS STAGES AND EQUIPMENT ONLY. NOT ALL

COMPONENTS SUCH AS VALVES, FITTINGS,

GRINDERS, INSTRUMENTS OR OTHER SUPPORTING

SYSTEMS ARE SHOWN.

1 BID SET 05/2026 JTH

53 342

WEIR 268.75

WEIR 274.67

EL 258.50

EL 254.17

EL 254.80

EL 259.62

PRIMARY SLUDGE

PUMP 1

EL. 262.83

EL 274.81

EL 268.83

EL 271.33 EL 271.25

WEIR 271.33

THICKENED SLUDGE

PUMP B

EL. 262.75

WEIR EL. 279.35

EL 280.00

MAX WL

MIN WL 274.75

CL. 296.75

OF TO PLANT DRAIN

SPLITTER BOX

BOT. 262.83

EL 255.58

FLOW CONDITIONS:

PS FLOW = 300 GPM

TSP FLOW = 100 GPM

STP FLOW = 300 GPM

PRIMARY CLARIFIER A/ PRIMARY

SLUDGE PUMPING STATION 1

SPLITTER BOX GRAVITY

THICKENER B

DIGESTER/ DIGESTER

BUILDING

DIGESTED SLUDGE

STORAGE TANKS

THICKENED

SLUDGE PUMPS

(IN DIGESTER

BUILDING

TO BE DEMOLISHED

TO BE DEMOLISHED

TO BE REPURPOSED

SLUDGE TRANSFER PUMP

EL. 263.17

305305

310310

CL. 259.50

DSST TANK BOTTOM

TO SOLIDS

PROCESSING

BUILDING

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

M

EC

H .rv t 5/

/2

:3

2:

P M

M003

D. RESTREPO

J. HISE

M. MAZZOCHETTE

MECHANICAL

SOLIDS HYDRAULIC PROFILE - EXISTING/DEMOLITION

1 BID SET 05/2026 JTH

54 342

WEIR 269.05

WEIR 274.67

EL 258.50

EL 255.86

EL 259.62

PRIMARY SLUDGE

PUMP 1

CL EL. 262.69

EL 274.81

EL 269.64

EL 274.22 EL 273.40 WEIR 274.00

THICKENED SLUDGE

PUMP 1

EL. 255.69

SPLITTER BOX

BOT. 263.17

EL 256.17

FLOW CONDITIONS:

PS FLOW = 300 GPM

TSP FLOW = 250 GPM

STP FLOW = 300 GPM

PRIMARY CLARIFIER A/ PRIMARY

SLUDGE PUMPING STATION 1

SPLITTER BOX GRAVITY

THICKENER B

DIGESTER/ DIGESTER

BUILDING

DIGESTED SLUDGE

STORAGE TANKS

CL. 285.05

SLUDGE SCREEN THICKENED

SLUDGE PUMPING

STATION

TOS 276.67

TOS 270.17

305 305

310 310

EL 254.80

WEIR EL. 279.35

EL 280.00

MAX WL

MIN WL 274.75

CL. 296.75

OF TO PLANT DRAIN

SLUDGE TRANSFER PUMP

EL. 263.17

CL. 259.50

DSST TANK BOTTOM

TO SOLIDS

PROCESSING

BUILDING

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

M

EC

H .rv t 5/

/2

:3

2:

P M

M004

D. RESTREPO

J. HISE

M. MAZZOCHETTE

MECHANICAL

SOLIDS HYDRAULIC PROFILE - PROPOSED

1 BID SET 05/2026 JTH

55 342

M100

A_______ M100

A_______

M100

B_______

M100

B_______

PUMP ROOM

PRIMARY

CLARIFIER A PRIMARY

CLARIFIER B

EX 6" PSD, TO

THICKENERS

REMOVE PUMPS AND PIPING TO

THE LIMITS SHOWN, TYP

6" PSM

REMOVE EX. PRIMARY SCUM

PUMP, EX. PRIMARY SCUM

PUMP 1

6" PSM

EX 4" MAG METER TO BE RELOCATED

AND REUSED, SEE NOTE 2

REMOVE ELECTRICAL EQUIPMENT

AND WATER TANK

EX 8" PSM

EX 6" SCEX 6" SC

REMOVE HEATER

REMOVE CONC,

SEE STRU DWGS

EX 8" PSD

REMOVE PUMPS AND PIPING

TO THE LIMITS SHOWN, TYP

EL 259.83

EL 273.42

EX. 4" MAG METER TO BE

RELOCATED AND REUSED

REMOVE VALVE EXTENSION, TYP

CL EL 262.83

REMOVE CONC

EQUIPMENT PADS AND

PIPE SUPPORTS, TYP

REMOVE SHUTTER

DAMPER

EX 8" PSD

EL 259.83

EL 273.42

REMOVE PUMPS AND PIPING

TO THE LIMITS SHOWN, TYP

REMOVE CONC SLAB,

SEE STRU DWGS

REMOVE GUARD RAILS,

SEE STRU DWGS

REMOVE CONC EQUIPMENT

PADS AND PIPE SUPPORTS, TYP

REMOVE VALVE

EXTENSION, TYP

M100

A_______ M100

A_______

M100

B_______

M100

B_______

18" 281.42, EX OA

CUT SLAB FOR

ACCESS DOOR,

SEE STRU DWGS

REMOVE VALVE

EXTENSION, TYP

REMOVE

GUARD RAILS,

SEE STRU

DWGS

12" 281.42, EX OA

PRIMARY

CLARIFIER A PRIMARY

CLARIFIER B

3/8" = 1'-0"

DEMOLITION BOTTOM PLAN

SECTION

3/8" = 1'-0" M100

A

SECTION

3/8" = 1'-0" M100

B

N

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

0-

PS

P1

-M .rv t 5/

/2

4:

:5

PM

M100

J. ALIANGAN

J. HISE

M. MAZZOCHETTE

PRIMARY SLUDGE PUMPING STATION NO. 1

MECHANICAL

DEMOLITION PLAN AND SECTIONS

NOTES:

1.

2.

SEE DEMOLITION NOTES ON DRAWING S002.

INSTALL EXISTING 4" MAGMETER IN THE NEW

PRIMARY SLUDGE PIPING.

3/8" = 1'-0" 4'21012"

3/8" = 1'-0"

DEMOLITION TOP PLAN

1 BID SET 05/2026 JTH

56 342

M101

M101

A_______

M101

C_______

M101

C_______

PUMP ROOM

PRIMARY

CLARIFIER A PRIMARY

CLARIFIER B

EX 6" PSD

8" BLIND FLANGE, TYP

EX 4" MAG METER,

SEE NOTE 2

COMBINATION AIR RELEASE VACUUM

VALVE, C/W BALL VALVE, TYP

EX 8" PSM

EX 8" PSD

EX 6" SC

EX 6" SC

ACCESS HATCH ABOVE

4" x 3" RED ELBOW, TYP

4" PV

4" PSM, CL 261.05

M101

D_______

M101

D_______

3'

0"

3' - 0"

9A-60-2

9A-61-2

9A-60-1

4" PV

9A-61-1

9A-62-1

PRIMARY SCUM PUMP NO. 1

PRIMARY SLUDGE

GRINDER NO. 1

PRV, TYP

PRIMARY SLUDGE GRINDER

NO.2

PRIMARY SLUDGE PUMP NO. 2

NEW SUMP PIT, SEE NOTE 1

6" PSD, CL 268.40

6"x4" LONG RADIUS

REDUCING ELBOW, TYP

4" PSD, CL 268.40

EX 4" PSM

WATER HEATER, SEE

PLUMBING DWGS

M

IN12

M

IN20

6" DISMANTLING JOINT

4" DISMANTLING JOINT, TYP

4" SWING CHECK VALVE

EX SCUM MIXER NO. 1

9A-63-1

EL 259.83

EL 273.42

EX 8" PSD

EX 8" PSD

FLUSHING CONNECTION

C/W BALL VALVE, TYP

COMBINATION AIR RELEASE VACUUM

VALVE, C/W BALL VALVE, TYP

6" PSD

CL 268.40

9A-60-1

9A-60-2

PRESSURE RELEASE VALVE,

TO SCUM PIT A

ACCESS DOOR, SEE STRUC

DWGS FOR DETAILS

CL EL 262.69

EL 257.59

PRIMARY SLUDGE GRINDER

NO.2

PRIMARY SLUDGE

GRINDER NO.1 UH-100-2

UH-100-1

COVER PL, SEE STRUC

DWGS

DAVIT CRANE BASE

2" V

CL 272.20

EX 4" PSM

6" KNIFE GATE VALVE, TYP

6" DISMANTLING JOINT, TYP

EQPT PAD, SEE STRU DWGS, TYP

EL 259.83

EL 273.42

COMBINATION AIR RELEASE

VALVE C/W BALL VALVE, TYP,

TO SCUM PIT A EX 4" MAG METER TO BE

REUSED

8" BLIND FLANGE, TYP

9A-60-2

SCUM PIT A

4" DISMANTLING JOINT, TYP

ACCESS DOOR, SEE STRUC

DWGS FOR DETAILS

CL EL 262.69

6" PV, TYP

PRIMARY SLUDGE

GRINDER NO.2

6" KNIFE GATE VALVE, TYP

9A-61-2

PRIMARY SLUDGE PUMP NO. 2 UH-100-2

9A-61-2

DAVIT CRANE BASE

4" PSD

CL 268.40

PG/PSH

9A-61-2

EQPT PAD, SEE STRU DWGS, TYP

10"

21 3/4"

BALL VALVE, TYP

TEE CLEANOUT

UH-100-1

9A-62-1

9A-60-1

CL EL 268.92

CL EL 262.83

4" PSM

CL 261.05

4" PV

4" DISMANTLING JOINT

4" PV

EL 259.83

EL 269.17

EL 273.42

PRIMARY SCUM PUMP

NO. 1

PRIMARY SLUDGE GRINDER

NO. 1

PG/PSH

9A-62-1

4" PSM

CL 263.93

EQPT PAD, SEE STRU DWGS, TYP

N

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

0-

PS

P1

-M .rv t 5/

/2

4:

:5

PM

M101

J. ALIANGAN

J. HISE

M. MAZZOCHETTE

PRIMARY SLUDGE PUMPING STATION NO. 1

MECHANICAL

PLAN AND SECTIONS

3/8" = 1'-0"

PLAN

SECTION

3/8" = 1'-0" M101

A

SECTION

3/8" = 1'-0" M101

C SECTION

3/8" = 1'-0" M101

D

SUMP PIT

NOTES:

1.

2.

REFERENCE THE PLUMBING AND THE

STRUCTURAL DRAWINGS FOR DETAILS ON

SUMP PUMP PIT 1.

INSTALL EXISTING 4" MAGMETER IN THE NEW

PRIMARY SLUDGE PIPING.

3/8" = 1'-0" 4'21012"

1 BID SET 05/2026 JTH

57 342

M150

M150

A_______

PUMP ROOM

EX 6" PSD

EX 4" PSM

EX 6" PSD

REMOVE PUMPS AND PIPING

TO THE LIMITS SHOWN, TYP

REMOVE ELECTRICAL

EQUIPMENT, WATER HEATER,

AND CONC EQPT PADS

M150

B_______ M150

B_______

EX 4" PSM

EX 4" D

EX 6" PSM

EX 4" PSM

EX 1" W3

EX 4" MAG METER.

SEE NOTE 2

EX ACCESS

DOOR

ABOVE

9B-62-3

EX PRIMARY SCUM PUMP 3

EX PRIMARY SCUM PUMP 2

9B-62-2

EX SCUM MIXER NO. 2

9B-63-2

EX 4" PSM

EX 3" PSD

EX 6" PSD

EX 6" PSD

EX 4" PSM

REMOVE PUMPS, CONC EQPT

PADS, PIPING, ANDSUPPORTS

TO THE LIMITS SHOWN, TYP

EL 266.25

EL 266.00

CL EL 261.47

CL EL 267.30

EX 4" MAG METER.

SEE NOTE 2

REMOVE VALVE

EXTENSIONS

REMOVE ROOF

VENT

REMOVE

ELECTRICAL

EQUIPMENT, WATER

HEATER, AND CONC

EQPT PADS

EX PRIMARY SCUM PUMP NO. 2

EX PRIMARY SCUM PUMP NO. 3

REMOVE PUMPS, CONC EQPT

PADS, PIPING, ANDSUPPORTS

TO THE LIMITS SHOWN, TYP

CONTRACTOR SHALL

FIELD VERIFY THIS

MEASUREMENT

EX 1" W3

4' - 3"

CL EL 266.25

CL EL 267.66

CL EL 262.00

9B-62-2

9B-62-3

EL 256.46

SUMP

PIT

REMOVE VENT

M150

A_______

M150

A_______

M150

B_______ M150

B_______

EX 4" PSM

REMOVE VALVE

EXTENSION, TYP

REMOVE

ROOF VENT

EX ACCESS DOOR

N

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

0-

PS

P2

-M .rv t 5/

/2

:3

6:

A M

M150

J. ALIANGAN

J. HISE

M. MAZZOCHETTE

PRIMARY SLUDGE PUMPING STATION NO. 2

MECHANICAL

DEMOLITION PLAN AND SECTIONS

3/8" = 1'-0"

DEMOLITION BOTTOM PLAN

SECTION

3/8" = 1'-0" M150

A SECTION

3/8" = 1'-0" M150

B 3/8" = 1'-0"

4'21012"

NOTES:

1.

2.

SEE DEMOLITION NOTES ON DRAWING S002.

INSTALL EXISTING 4" MAGMETER IN THE NEW

PRIMARY SLUDGE PIPING.

3/8" = 1'-0"

DEMOLITION TOP PLAN

N

1 BID SET 05/2026 JTH

58 342

EX 6" PSD

EX 6" PSD

PUMP ROOM

M151

C_______

M151

C_______

M151

D_______ M151

D_______

EX. 4" MAG METER.

SEE NOTE 2

9B-61-3

9B-61-4

9B-60-3

EX ACCESS

DOOR

ABOVE

PRIMARY SCUM PIT

EX 4" PSM

EX 4" D

EX 6" PSM

EX 4" PSM

4" DISMANTLING JOINT, TYP

EX 1" W3

ABANDON EX 4" PSM

AND BLIND OR CAP

WHERE NECESSARY

4" BLIND

FLANGE

EX PRIMARY SCUM PUMP NO.3

EX PRIMARY SCUM PUMP NO.2

PRIMARY SLUDGE PUMP NO. 4

6" PV, TYP

PRIMARY SLUDGE PUMP NO. 3

PRIMARY SLUDGE GRINDER NO. 3

6" PV, TYP

9B-62-2

9B-62-3

EX SCUM MIXER NO. 2

9B-63-2

6" DISMANTLING JOINT, TYP

6" FILLER FLANGE

6" KNIFE GATE VALVE, TYP

INSTALL CONNECTION

FOR 6" BYPASS

EX 6" PSD

EX 6" PSD

6" PV, TYPPRIMARY SLUDGE PUMP NO. 4

FLUSHING CONNECTION, TYP.

PRIMARY SLUDGE PUMP NO. 3

FLUSHING

CONNECTION, TYP

EX 4" MAG METER.

SEE NOTE 2

9B-61-4

9B-61-3

EX ACCESS DOOR

EX 4" PSM

4" DISMANTLING JOINT, TYP

6" PV, TYP

EL 273.00

EL 259.33

TYPM-40-0300

CL EL 261.47

6" PSD

CL 267.94

CL EL 267.30

UH-150-2

ARV, TYP

6" PV

6" SWING CHECK VALVE, TYPPRV, TYP

EF-150-1COVER PL, SEE 100

SERIES STRUC

DWGS, SIM, TYP OF 2

4" BLIND FLANGE

MIN

12"

MIN

20"

ABANDON 4" PSM

AND BLIND OR CAP

WHERE

NECESSARY

EX ACCESS DOOR

EX PRIMARY SCUM PUMP NO. 2

EX PRIMARY SCUM PUMP NO. 3

6" SWING CHECK

VALVE, TYP

9B-60-3

9B-61-3

EL 273.08

EL 259.38

M-40-0300

EX 1" W3

EL 256.46

SUMP

PIT

PRIMARY SLUDGE GRINDER

NO. 3

EF-150-1

PRIMARY SLUDGE PUMP NO. 3

9B-62-2

9B-62-3

6" PV, TYP

PG/PSH

9B-61-3PG/PSL

9B-61-3

EQPT PAD, SEE STRU

DWGS, TYP

M151

C_______

M151

C_______

M151

D_______ M151

D_______

EX 6" PSD

EX 4" PSM

EX 4" D

EX 6" PSM

EX 4" PSM

EX 1" W3

ABANDON 4" PSM AND

BLIND OR CAP WHERE

NECESSARY

EX ACCESS

DOOR

EF-150-1

EQPT DAVIT CRANE AND

BASE, SEE NOTE 4

ABANDON 4" PSM AND

BLIND OR CAP WHERE

NECESSARY

EX SCUM MIXER NO. 2

9B-63-2

COVER PL, SEE 100

SERIES STRUC

DWGS, SIM, TYP OF 2

8"

N

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

0-

PS

P2

-M .rv t 5/

/2

:3

7:

A M

M151

J. ALIANGAN

J. HISE

M. MAZZOCHETTE

PRIMARY SLUDGE PUMPING STATION NO. 2

MECHANICAL

PLAN AND SECTIONS

3/8" = 1'-0"

BOTTOM PLAN

SECTION

3/8" = 1'-0" M151

C SECTION

3/8" = 1'-0" M151

D 3/8" = 1'-0" 4'21012"

3/8" = 1'-0"

TOP PLAN

NOTES:

1.

2.

3.

4.

REFERENCE THE PLUMBING DRAWINGS FOR

DETAILS ON SUMP PUMP.

INSTALL EXISTING 4" MAGMETER IN THE NEW

PRIMARY SLUDGE PIPING.

PROVIDE SUFFICIENT DUST PROTECTION FOR

ALL EXISTING EQUIPMENT (PUMPS, ETC.)

DURING DEMOLITION AND CONSTRUCTION.

EQUIPMENT DAVIT CRANE BASE LOCATION

SHALL BE COORDINATED WITH EQUIPMENT

SELECTED AND CONFIRMED WITH ENGINEER

AND OWNER PRIOR TO INSTALLATION. SEE

SPECIFICATION 41 22 00 FOR ADDITIONAL

REQUIREMENTS.

N

1 BID SET 05/2026 JTH

59 342

THICKENED SLUDGE

PUMP STATION, SEE 200

SERIES FOR DWGS

GRAVITY THICKENER A, SEE

300 SERIES FOR DWGS

GRAVITY THICKENER B, SEE

320 SERIES FOR DWGS

GRAVITY THICKENER C, SEE

340 SERIES FOR DWGS

SPLITTER BOX, SEE 250

SERIES FOR DWGS

SOLIDS ELECTRIC

BUILDING, SEE 450

SERIES FOR DWGS

SCUM PIT 1, SEE 400 SERIES

FOR DWGS

SCUM PIT 2, SEE 400 SERIES

FOR DWGS

N

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W P

C F

S o lid s P ro c e s s in g I m p P h I /3

-0

-2

-T

S P

S -M

.r v t

/1

/2

:4 :0

P

M

M200

J. BETTINI

M. MAZZOCHETTE

S. CHIN

THICKENED SLUDGE PUMPING STATION

MECHANICAL

OVERALL PLAN

3/16" = 1'-0"

OVERALL PLAN

1 BID SET 05/2026 JTH

60 342

M204

B_______

M204

B_______

SEE 2/M205

M204

B_______

M204

B_______

M204

A_______

M204

A_______

6" PLUG VALVE, TYP

6" PSD, CL 261.83, SEE

CIVIL FOR

CONTINUATION

TYPM-40-0107

6" PSD, CL 261.83

6" PSD, CL 261.83

STAIR 2

STAIR 1

PUMP ROOM

6" DF, CL 262.58, SEE

CIVIL FOR

CONTINUATION

HOSE BIBB

6' - 3" 6' - 11" 7' - 5"

6" TPS, CL 256.17,

SEE CIVIL FOR

CONTINUATION

6" TPS, CL 256.17, SEE

CIVIL FOR

CONTINUATION

2" W3, CL 261.50

2" W3, CL 265.83

2" W3, CL 265.83

6" PDG, CL 251.42, TO

GTO MANHOLE

6" PSD, CL 261.83

TYPM-40-0704

TYPM-40-0704

SEE 3/M206

SPLITTER BOX

FOOTPRINT

4" D, CL 265.25, SLOPE

1/8"/12"

WATER HEATER, SEE

PLUMBING DWGS

6" PSD, CL 261.83

3' - 2"6' - 6"6' - 6"6' - 6"

FLOOR DRAIN, SEE

NOTE 2, TYP

4" PSM, CL 260.42, SEE CIVIL

FOR CONTINUATION

4" PSM, CL 261.50, SEE CIVIL

FOR CONTINUATION

M-40-0103

6" PDG, CL 251.42, SEE CIVIL

FOR CONTINUATION 4" D, CL 250.95, SEE CIVIL FOR

CONTINUATION

FD FD

FD

4" D, CL 251.40, SLOPE

1/8"/12"

4" D, CL 251.24,

SLOPE 1/8"/12"

4" D, CL 251.10,

SLOPE 1/8"/12"

16" OA, CL 248.63

N

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W P

C F

S o lid s P ro c e s s in g I m p P h I /3

-0

-2

-T

S P

S -M

.r v t

/1

/2

:4 :0

P

M

M201

J. BETTINI

M. MAZZOCHETTE

S. CHIN

THICKENED SLUDGE PUMPING STATION

MECHANICAL

BOTTOM PLAN

NOTES:

1. CONTRACTOR SHALL PROVIDE PIPE

SUPPORTS IN ACCORDACE WITH

SPECIFICATION 40 05 07 - PIPE

SUPPORTS

2. FLOOR DRAIN SHALL BE ZURN MODEL

NO. ZN-Z415-B71-G OR APPROVED

EQUAL.

1/4" = 1'-0"

BOTTOM PLAN

1 BID SET 05/2026 JTH

61 342

M204

B_______

M204

A_______

STAIR 2

STAIR 1

2 CUBIC YARD

DUMPSTER, TYP

DUMPSTER ROOM

4" PSD

4" PSD

4" PSD

4" PSD

HOSE BIBB

AL ACCESS DOOR,

SEE STRU DWGS, TYP

GRAVITY THICKENER C, SEE

340 SERIES DRAWINGS

GRAVITY THICKENER B, SEE

320 SERIES DRAWINGS

GRAVITY THICKENER A, SEE

300 SERIES DRAWINGS

SPLITTER BOX, SEE 250

SERIES DRAWINGS

PEDESTRIAN WALKWAY, SEE

STRU 270 SERIES DRAWINGS

M-40-0704

M-40-0620R

SCUM PIT 2, SEE 400

SERIES DRAWINGS

SCUM PIT 1, SEE 400 SERIES

DRAWINGS

FLOOR DRAIN, SEE

NOTE 1, TYP

HVAC EQUIPMENT,

SEE HVAC DWGS

HVAC EQUIPMENT,

SEE HVAC DWGS

16" STAINLESS

STEEL INSECT

SCREEN, TYP

1" D, CONDENSATE DRAIN

4" D

16" OA, CL 278.00

16" STAINLESS STEEL

INSECT SCREEN

BOLLARDS, TYP

N

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W P

C F

S o lid s P ro c e s s in g I m p P h I /3

-0

-2

-T

S P

S -M

.r v t

/1

/2

:4 :0

P

M

M202

J. BETTINI

M. MAZZOCHETTE

S. CHIN

THICKENED SLUDGE PUMPING STATION

MECHANICAL

TOP PLAN

1/4" = 1'-0"

TOP PLAN

NOTES:

1. FLOOR DRAIN SHALL BE ZURN MODEL NO. ZN-

Z415-B71-G OR APPROVED EQUAL.

2. EQUIPMENT DAVIT CRANE BASE LOCATION

SHALL BE COORDINATED WITH EQUIPMENT

SELECTED AND CONFIRMED WITH ENGINEER

AND OWNER PRIOR TO INSTALLATION. SEE

SPECIFICATION 41 22 00 FOR ADDITIONAL

REQUIREMENTS.

1 BID SET 05/2026 JTH

62 342

M204

B_______

M204

A_______

SCREEN ROOM

STAIR 2

HOSE BIBB, TYP

M-40-0704

SPLITTER BOX, SEE 250

SERIES DRAWINGS

FLOOR DRAIN, SEE

NOTE 1, TYP

SLUDGE SCREEN, TYP

11-142-1

11-142-2

7' - 0" 7' - 4" 7' - 0"

SLUDGE SCREEN,

11-142-1 VCP

PNEUMATIC PANEL, TYP

COMPRESSOR, TYP

SLUDGE SCREEN,

11-142-2 VCP

23 1/2"

4" OA, CL 292.92

16" EXPANSION JOINT

16" OA, CL 284.33

FOR OA DUCT SUPPORT,

SEE STRU DWGS, TYP

M204

A_______

SPLITTER BOX, SEE 250

SERIES DRAWINGS

4" D, CL 278.54, SLOPE 1/8"/12"

N

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W P

C F

S o lid s P ro c e s s in g I m p P h I /3

-0

-2

-T

S P

S -M

.r v t

/1

/2

:4 :0

P

M

M203

J. BETTINI

M. MAZZOCHETTE

S. CHIN

THICKENED SLUDGE PUMPING STATION

MECHANICAL

UPPER PLAN

3/8" = 1'-0"

UPPER PLAN

NOTES:

1. FLOOR DRAIN SHALL BE ZURN MODEL NO. ZN-

Z415-B71-G OR APPROVED EQUAL.

2. CONTRACTOR SHALL INSTALL THE

COMPRESSED AIR SYSTEM AND ALL

ASSOCIATED PIPING, VALVES, AND FITTINGS

IN ACCORDANCE WITH THE COMPRESSED AIR

EQUIPMENT MANUFACTURERS

RECOMMENDATIONS.

3. CONTRACTOR SHALL INSTALL ALL

COMPRESSED AIR PIPING AT A MINIMUM OF

3'-0" FROM THE FLOOR. CONTRACTOR SHALL

ALSO ROUTE PIPING AS REQUIRED TO AVOID

BLOCKING DOORWAYS AND PATHWAYS

BETWEEN DOORS.

4. PIPE SUPPORTS AND ASSOCIATED

HARDWARE SHALL BE 316 STAINLESS STEEL,

SPACING SHALL BE AS SPECIFIED IN

SPECIFICATION 40 05 07.

5. CONTRACTOR SHALL BE RESPONSIBLE FOR

SUBMITTING SHOP DRAWINGS DETAILING ALL

SERVICE AIR PIPE ROUTING PRIOR TO

BEGINNING WORK.

6. SERVICE AIR PIPE SHALL BE ROUTED TO THE

SCREENS ALONG THE CEILING.

7. CONTRACTOR SHALL PROVIDE MEANS TO

DISASSEMBLE SERVICE AIR PIPING TO ALLOW

FOR SCREEN SERVICE AND MAINTENANCE.

1 BID SET 05/2026 JTH

63 342

6" PSD, CL 261.83

SEE CIVIL FOR

CONTINUATION

EL 268.17

EL 282.17

EL 254.17

2 CUBIC YARD

DUMPSTER HIDDEN

FOR CLARITY, TYP

TYPM-40-0107

6" PLUG VALVE, TYP

TYPM-40-0705

FLUSHING

CONNECTION

2" W3

CL 271.00

2" W3

CL 265.83

TYPM-40-0704

2" W3

CL 282.50

2" W3

CL 278.92

HOSE BIBB

TYPM-40-0108

4" OA

CL 292.92

TYPM-40-0114

4" D, INV 278.36

SLOPE 1/8"/12"

3" FLEXIBLE HOSE, TYP

M-40-0111

M-40-0704

SEE PLUMBING DWGS

FOR CONTINUATION

SLUDGE SCREEN, TYP

11-142-1

11-142-2

4" D, INV 265.07

SLOPE 1/8"/12"

4" D, INV 251.43

SLOPE 1/8"/12"

TYPM-40-0100

FLOOR DRAIN,

SEE NOTE 1

FLOOR DRAIN,

SEE NOTE 2

SLUDGE SCREEN,

11-142-2 VCP

PNEUMATIC PANEL, TYP

SLUDGE SCREEN,

11-142-1 VCP

COMPRESSOR, TYP

COMPRESSOR HIDDEN

FOR CLARITY

M204

1 TYP

4" CONTROL DAMPER, TYP

16" STAINLESS STEEL INSECT

SCREEN, TYP

6" X 1" COMPANION FLANGE FOR

CONDENSATE DRAIN, TYP

BOLLARDS HIDDEN

FOR CLARITY, TYP

6" OA

16" OA

16" OA

CL 284.33

1" D

FOR OA DUCT SUPPORT,

SEE STRU DWGS, TYP

TYPM-40-0100

2 CUBIC YARD

DUMPSTER

M-40-0100

M-40-0108

2" W3

CL 265.83

6" PSD

CL 261.83

TYPM-40-0705

FLUSHING

CONNECTION

HOSE BIBB

TYPM-40-0704

EL 254.17

EL 268.17

EL 282.17

M-40-0111

SLUDGE SCREEN

3" FLEXIBLE HOSE

2" W3

CL 265.83

11-142-1

4" D, INV 265.07

SLOPE 1/8"/12"

4" D, INV 251.43

SLOPE 1/8"/12"

4" D, INV 278.36

SLOPE 1/8"/12"

BOLLARD

SLUDGE SCREEN,

11-142-1 VCP

4" CONTROL DAMPER

PNEUMATIC PANEL

4" PLUG VALVE, TYP

4" PSD

4" PSD

4" D, CL 278.54

SLOPE 1/8"/12"

4" OA

CL 292.92

16" STAINLESS STEEL

INSECT SCREEN

16" OA

CL 278.00

M204

4" EXPANSION JOINT, TYP

1/2" MIN GAP AROUND

SST CHUTE

THROUGH FLOOR

3'-0" ABOVE TOP

OF DUMPSTER

SLUDGE SCREEN

HDPE

1/4" 316 SST

CHUTE COORD

FLANGE FOR SST SHAFT TO BE

PROVIDED BY SCREEN

MANUFACTURER IS TO BE

BOLTED TO FLOOR OPENING

WITH EPDM GASKET TO CREATE

AIRTIGHT SEAL

TRANSITION BY SCREEN

MANUFACTURER TO FIT INSIDE

BOLTED COLLAR

REMOVABLE COLLAR, SEE

NOTE 1

3" FLEXIBLE HOSE

M

IN

PIPE

STEEL FLOOR

SLEEVE

FLOOR SLEEVE SHALL BE

SIZED TO ALLOW PASSAGE

OF PIPE FLANGE

CONCRETE

FLOOR

EPDM FLEXIBLE

RUBBER COUPLING

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W P

C F

S o lid s P ro c e s s in g I m p P h I /3

-0

-2

-T

S P

S -M

.r v t

/1

/2

:4 :0

P

M

M204

J. BETTINI

M. MAZZOCHETTE

S. CHIN

THICKENED SLUDGE PUMPING STATION

MECHANICAL

SECTIONS

SECTION

3/8" = 1'-0" M201

BSECTION

3/8" = 1'-0" M201

A

NOTES:

1. CONTRACTOR SHALL COORDINATE

SIZE AND LENGTH OF SCREENINGS

DISCHARGE CHUTE BETWEEN

SCREEN AND CLIENT SELECTED 2

YARD DUMPSTER. CHUTES SHALL BE

FABRICATED FROM 1/4" THICK 316 SST.

2. FLOOR DRAIN SHALL BE ZURN MODEL

NO. ZN-Z415-B71-G OR APPROVED

EQUAL.

3. CONTRACTOR SHALL COORDINATE

COMPRESSED AIR PIPING FROM

COMPRESSOR TO PNEUMATIC PANELS

AND SCREENS, WITH PIPING

OVERHEAR SO AS TO PREVENT TRIP

HAZARDS AND CONFLICTS WITH

OTHER EQUIPMENT AND EGRESS.

DETAIL

1/2" = 1'-0" M204

NOTES:

1. REMOVABLE COLLAR SHALL BE PROVIDED BY

SCREEN MANUFACTURER COLLAR SHALL BE

316 STAINLESS STEEL. REMOVAL OF COLLAR

SHALL ALLOW FOR DISMANTLING OF SLUDGE

SCREEN.

DETAIL

NTS M204

1 BID SET 05/2026 JTH

FOR OA DUCT SUPPORT,

SEE STRU DWGS, TYP

64 342

M205

2B_______

M205

2B_______

TS PUMP, TYP

PG/PSL

31-122-1

PG/PSL

31-122-2

PG/PSL

31-122-3

PG/PSL

31-122-4

PG/PSH

31-122-4

PG/PSH

31-122-3

PG/PSH

31-122-2

PG/PSH

31-122-1

6" TPS, CL 256.17

6" SWING CHECK

VALVE, TYP

M205

2A_______

M205

2A_______

6" DISMANTLING

JOINT, TYP

6" TPS, CL 262.58

FIT

31-463-1

TYPM-40-0103

6" TPS, CL 256.17

6" TPS, CL 256.17

6" PLUG VALVE, TYP

6" DF, CL 262.58

31-122-1

31-122-231-122-4

31-122-3

TYPM-40-0107

6" TPS, CL 256.176" TPS, CL 256.17

6" TPS, CL 256.17

4" TPS, CL 262.58

FIT

31-152-1

/2

4" DISMANTLING JOINT, TYP

3" DISMANTLING JOINT

3" MAGNETIC

FLOW METER

FE

31-152-1

4" PSM, CL 262.58

4" PLUG VALVE, TYP

4" PSM, CL 262.58

6" PLUG VALVE, TYP

FLOOR DRAIN,

SEE NOTE 1

AL GRATING, SEE

STRU DWGS

M

IN

M

IN

4" MAGNETIC FLOW METER

FE

31-463-1

6" TPS, CL 262.58

MIN

18"

MIN

6"

TYPM-40-0705

FLUSHING CONNECTION

EL 254.17

PG/PSH

31-122-3

6" SWING CHECK VALVE

6" PLUG VALVE, TYP

6" TPS

CL 256.17

6" DISMANTLING JOINT, TYP

PG/PSL

31-122-3

SPLITTER BOX, SEE

250 SERIES FOR

CONTINUATION

6" TPS, CL 256.17

SEE CIVIL FOR

CONTINUATION

M-40-0107

TYPM-40-0103

2" W3

CL 265.83

2" W3

CL 265.83

HDPE

FRP

TYPS-03-0404

PIPE ENCASEMENTS

PUMP CL 255.68

2" AIR RELEASE VALVE, ROUTE DRAIN

TO NEAREST FLOOR DRAIN, TYP

2" BALL VALVE, TYP6" PLUG VALVE, TYP

M-40-0100

1" TPS

CL 266.75

6" TPS

CL 262.58

M-40-0104

6" PSD

CL 261.83

6" DF

CL 262.58

HVAC EQUIPMENT,

SEE HVAC DWGS

EL 268.16

EL 264.17

6" TPS

CL 264.00

AL GRATING, SEE

STRU DWGS

CLASS B CONC,

SEE STRU DWGS

1" TPS

CL 268.67

TS PUMP

31-122-3

MIN

12"

MIN

20"

4" MAGNETIC

FLOW METER

4" DISMANTLING

JOINT

FE

31-463-1

6" TPS

CL 256.17

6" PLUG VALVE, TYP

6" PSD

CL 261.83

6" BLIND FLANGE, TYP

6" PDG, CL 251.42

TO GTO MANHOLE

2" W3

CL 265.83

2" BALL VALVE, TYP

M-40-0620R

4" PSM

CL 261.50

4" PLUG VALVE, TYP

6" PDG

CL 254.83

4" PSM

CL 260.42

AL GRATING, SEE

STRU DWGS

CLASS B CONC,

SEE STRU DWGS

HYDROPHILIC WATERSTOP,

CONTINUOUS AROUND

PERIMETER OF PIPE, TYP

6" DISMANTLING JOINT

S-03-0404

PIPE ENCASEMENT

4" D, INV 251.18

SLOPE 1/8"/12"

HYDROPHILIC WATERSTOP,

CONTINUOUS AROUND

PERIMETER OF PIPE, TYP

N

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W P

C F

S o lid s P ro c e s s in g I m p P h I /3

-0

-2

-T

S P

S -M

.r v t

/1

/2

:4 :1

P

M

M205

J. BETTINI

M. MAZZOCHETTE

S. CHIN

THICKENED SLUDGE PUMPING STATION

MECHANICAL

DETAILS

DETAIL

3/8" = 1'-0" M201

SECTION

3/8" = 1'-0" M205

2B

3/8" = 1'-0"

PLAN VIEW

SECTION

3/8" = 1'-0" M205

2A

NOTES:

1. FLOOR DRAIN SHALL BE ZURN MODEL NO. ZN-

Z415-B71-G OR APPROVED EQUAL.

1 BID SET 05/2026 JTH

65 342

M206

3A_______

M206

3A_______

M-40-0111

M206

3B_______

M206

3B_______

FLUSHING

CONNECTION

M-40-0705

4" PSM, CL 256.17

4" PLUG VALVE, TYP

4" PSM, CL 256.17

GRINDER

31-151-1

4" DISMANTLING

JOUNT

4" PSM, CL 262.58

4" PSM, CL 260.42, SEE CIVIL

FOR CONTINUATION

1" AIR RELEASE VALVE

1/2" V, CL 264.75,

ROUTE TO NEAREST

FLOOR DRAIN

ELEC EQUIPMENT,

SEE ELEC DWGS

4" PLUG VALVE, TYP

11" 23" 20 3/4"

TYPM-40-0107

ELEC EQUIPMENT,

SEE ELEC DWGS, TYP

2" W3, CL 261.50

4" PSM, CL 261.50, SEE CIVIL

FOR CONTINUATION

6" PDG, CL 254.83

M-40-0704

4" PSM

CL 256.17

GRINDER

31-151-1

EL 254.17

EL 268.17

4" DISMANTLING

JOINT, TYPM-40-0705

FLUSHING

CONNECTION

M-40-0100

1/2" V

CL 264.75

4" PSM

CL 260.42

4" PSM

CL 260.42

4" PLUG VALVE, TYP

4" PSM

CL 262.58

CL 254.83

6" PDG

CL 251.42

ELEC EQUIPMENT,

SEE ELEC DWGS

M-40-0111

2" W3

CL 261.50

S-03-0404

4" PSM

CL 261.50

6" PDG

HYDROPHILIC WATERSTOP,

CONTINUOUS AROUND

PERIMETER OF PIPE, TYP

AL GRATING, SEE

STRU DWGS

CLASS B CONC, SEE

STRU DWGS

2" W3

CL 265.83

M-40-0704

1" AIR RELEASE VALVE, PIPE

DISCHARGE TO NEAREST

FLOOR DRAIN

S-03-0507

6" PDG, CL 251.42

TO GTO MANHOLE

EL 254.17

4" PSM, CL 261.50

SEE CIVIL FOR CONTINUATION

CL 260.42

6" PDG, CL 251.42

SEE CIVIL FOR

CONTINUATION

4" PSM

6" PDG

CL 254.83

4" PLUG VALVE, TYP

HYDROPHILIC WATERSTOP,

CONTINUOUS AROUND

PERIMETER OF PIPE, TYP

AL GRATING, SEE STRU DWGS

CLASS B CONC FILL,

SEE STRU DWGS

S-03-0404

PIPE ENCASEMENT

N

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W P

C F

S o lid s P ro c e s s in g I m p P h I /3

-0

-2

-T

S P

S -M

.r v t

/1

/2

:4 :1

P

M

M206

J. BETTINI

M. MAZZOCHETTE

S. CHIN

THICKENED SLUDGE PUMPING STATION

MECHANICAL

DETAILS

DETAIL

1/2" = 1'-0" M201

SECTION

1/2" = 1'-0" M206

3A

SECTION

1/2" = 1'-0" M206

3B

1/2" = 1'-0"

PLAN VIEW

NOTES:

1. FLOOR DRAIN SHALL BE ZURN MODEL NO. ZN-

Z415-B71-G OR APPROVED EQUAL.

1 BID SET 05/2026 JTH

66 342

M251

M251

B_______

M251

A_______

M251

A_______

SST WEIR GATE, TYP

M251

C_______ M251

C_______

6" BLIND FLANGE

AL FLAT COVERS, SEE

STRU DWGS, TYP

THICKENED SLUDGE

PUMPING STATION, SEE

SERIES 200 FOR DWGS

GRAVITY THICKENER

PEDESTRIAN BRIDGE,

SEE STRU SERIES 270

FOR DWGS

M-40-0620R

SEE NOTE 1

STOP PLATE, TYP

M-40-0600

6" PSD

6" PSD, SEE NOTE 1

6" PSD, SEE NOTE 1

16" OA, CL 284.33

16" EXPANSION JOINT, TYP

FOR OA KNEE BRACE SUPPORT,

SEE STRU DWGS

M251

B_______

M251

B_______

M251

A_______

M251

A_______

BOX B BOX A

BOX C BOX D

INFLUENT CHANNEL

6" PSD, CL 261.83

TYPM-40-0110

6" BLIND FLANGE

M251

C_______ M251

C_______

THICKENED SLUDGE

PUMPING STATION, SEE

SERIES 200 FOR DWGS

FLUSHING CONNECTION

6" PLUG VALVE

6" TPS, CL 256.17

6" TPS, CL 256.17

6" PSD

6" PSD, CL 261.83

TYPM-40-0107

SEE NOTE 1

SEE NOTE 1

SEE NOTE 1

6" PSD

6" PSD

PUMP ROOM

6" TPS, CL 264.00

STRUC

FOUNDATION

HIDDEN FOR

CLARITY, TYP

6" TPS, CL 256.17

6" DISMANTLING JOINT, TYP

16" OA, CL 258.63

FOR OA KNEE BRACE SUPPORT,

SEE STRU DWGS

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

0-

SS

B-

M .rv t 5/

/2

:1

9:

A M

M250

M. CASUCO

J. COYNE

S. CHIN

GRAVITY THICKENER SPLITTER BOX

MECHANICAL

PLANS

1/2" = 1'-0"

TOP PLAN

NOTES:

1. EXPOSED PRIMARY SLUDGE PIPING SHALL

HAVE A 1/8-INCH MINIMUM SLOPE. SLOPE

SHALL BE ACHIEVED WITH MEGAFLANGE

SERIES 2100 BY EBAA IRON OR WITH MCWANE

DUCTILE IRON BEVELED FILLER FLANGE OR

APPROVED EQUAL.

NN

1/2" = 1'-0"

BOTTOM PLAN

1 BID SET 05/2026 JTH

67 342

EL 264.17

EL 276.67

SST WEIR GATE, TYP

AL FLAT COVERS, SEE

STRU DWGS, TYP

CLASS B CONC FILL,

SEE STRU DWGS

TYPM-40-0110

INFLUENT

CHANNEL

STOP PLATE

TYPM-40-0600

EL 273.67

EL 275.83EL 275.67

271.506" PSD, INV

SEE NOTE 1271.506" PSD, INV

SEE NOTE 1

CL 274.83

SEE SECTION B

6" FLARE 90° BEND

16" OA

CL 258.63

6" EXPANSION JOINT, TYP

6" CONTROL DAMPER

6" PSD

CL 261.83

TYPS-03-0404

PIPE ENCASEMENT

M251

16" EXPANSION

JOINT, TYP

16" OA

CL 283.67

M-40-0421R TYP

FOR OA KNEE BRACE

SUPPORT, SEE STRU

DWGS EL 276.67

INFLUENT CHANNEL

PUMP ROOM

SST WEIR GATE, TYP

6" EXPANSION JOINT

6" PSD

CL 261.83

THICKENED SLUDGE

PUMPING STATION, SEE

SERIES 200 FOR DWGS

GRAVITY THICKENER

PEDESTRIAN BRIDGE,

SEE STRU SERIES 270

FOR DWGS

TYPM-40-0600

STOP PLATE

HDPE

FRP

EL 275.83

6" FLARE 90° BEND

M-40-0101

6" TPS

CL 274.83

2" W3

CL 265.83

FLUSHING CONNECTION

6" PLUG VALVE

M251

M-40-0705

M-40-0104

6" TPS

CL 264.00

6" PSD

SEE NOTE 1

TYPS-03-0404

PIPE ENCASEMENT

EL 264.17

EL 254.17

6" TPS

CL 256.17

6" PLUG VALVE, TYP

TS PUMP, TYP

PG/PSL

31-122-2

6" DISMANTLING

JOINT, TYP

6" PDG

CL 254.83

M-40-0107

6" CONTROL DAMPER

16" EXPANSION JOINT

M-40-0421R TYP

16" OA

CL 284.33

EL 276.67

BOX C BOX D

SST WEIR GATE, TYP

AL FLAT COVERS, SEE

STRU DWGS, TYP

CLASS B CONC. FILL,

SEE STRU DWGS, TYP

COORDINATE CONNECTION TO

ODOR CONTROL COVERS WITH

COVER MANUFACTURER.

HARDWARE SHALL BE 316 SST

VA

R

IE

S

ODOR CONTROL COVER

8" OA

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

0-

SS

B-

M .rv t 5/

/2

:1

9:

A M

M251

M. CASUCO

J. COYNE

S. CHIN

GRAVITY THICKENER SPLITTER BOX

MECHANICAL

SECTIONS AND DETAIL

SECTION

1/2" = 1'-0" M250

A

SECTION

1/2" = 1'-0" M250

B

NOTES:

SECTION

1/2" = 1'-0" M250

C

1. EXPOSED PRIMARY SLUDGE PIPING SHALL

HAVE A 1/8-INCH MINIMUM SLOPE. SLOPE

SHALL BE ACHIEVED WITH MEGAFLANGE

SERIES 2100 BY EBAA IRON OR WITH MCWANE

DUCTILE IRON BEVELED FILLER FLANGE OR

APPROVED EQUAL.

DETAIL

NTS M251

1 BID SET 05/2026 JTH

68 342

HEAT TRACE PSD

SEE NOTE 2

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W

P C

F S o lid s P ro c e s s in g I m p P h I /3

-0

-3

-G T

A -M

.r v t

/1

/2

:1 :5

P

M

M300

M. CASUCO

J. COYNE

S. CHIN

GRAVITY THICKENER A

MECHANICAL

ISOMETRIC VIEWS

NOTES:

1. GRAVITY THICKENER A SHOWN. ARRANGEMENT FOR GRAVITY

THICKENER B AND C TO BE SIMILAR. REFER TO M320 AND M340

SERIES DRAWINGS.

2. ALL PRIMARY SLUDGE PIPING EXTERNAL TO SPLITTER BOX,

THICKENED SLUDGE PUMPING STATION AND GRAVITY THICKENER

SHALL BE INSULATED AND HEAT TRACED ACCORDING TO

SPECIFICATION 40 41 13 - HEAT TRACING SYSTEMS

3. CONTRACTOR TO COORDINATE PLATFORM AND WALKWAY WITH

COVER MANUFACTURER AND GRAVITY THICKENER

MANUFACTURER.

ISOMETRIC ISOMETRIC - CUTAWAY

1 BIT SET 05/2026 JTH

69 342

M302

M302

B_______

M302

A_______

M302

A_______

R O

TATIO

N

M302

C_______

M302

C_______

SCUM TROUGH, SEE NOTE 1

SKIMMER ARM, SEE NOTE 1

SCUM BAFFLE, SEE NOTE 1

V-NOTCHED WEIR, SEE NOTE 1

10" GTO, CL 261.67, SEE CIVIL

FOR CONTINUATION

RAKE ASSEMBLY, SEE NOTE 1

GRAVITY THICKENER A

6" TPS, CL 256.17, SEE CIVIL

FOR CONTINUATION

8" OA, CL 256.67±

SEE CIVIL FOR CONTINUATION

M-40-0105

22' - 0" ø

6" PSM, CL 262.08, TO SCUM PIT

ELEC EQUIPMENT,

SEE ELEC DWGS M302

B_______

M302

B_______

M302

A_______

M302

A_______

CENTER DRIVE

ASSEMBLY, SEE NOTE 1

WALKABLE AL FLAT COVER,

SEE STRU DWGS

M302

C_______

M302

C_______

GRAVITY THICKENER

PLATFORM, SEE NOTE 1

8" OA, CL 272.83

6" PSD, INV 271.00

SEE NOTE 4

31A-121-1

TYPS-05-0501

8" CONTROL DAMPER, TYP

8" OA, CL 274.67

AIR INTAKE W/ INSECT SCREEN

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W

P C

F S o lid s P ro c e s s in g I m p P h I /3

-0

-3

-G T

A -M

.r v t

/1

/2

:1 :5

P

M

M301

M. CASUCO

J. COYNE

S. CHIN

GRAVITY THICKENER A

MECHANICAL

PLANS

3/8" = 1'-0"

BOTTOM PLAN

NN

3/8" = 1'-0"

TOP PLAN

NOTES:

1. REFER TO SECTION 46 43 21.24 FOR MECHANISM SPECIFICATIONS

AND SCOPE OF SUPPLY.

2. CONTRACTOR SHALL PROVIDE PIPE SUPPORT IN ACCORDANCE

WITH SPECIFICATION 40 05 07 - PIPE SUPPORTS.

3. SECTIONS SHOWN SHALL BE SIMILAR FOR GRAVITY THICKENERS B

AND C UNLESS NOTED OTHERWISE ON THE M320 OR M340 SERIES

DRAWINGS.

4. EXPOSED PRIMARY SLUDGE PIPING SHALL HAVE A MINIMUM 1/8-

INCH SLOPE. SLOPE SHALL BE OBTAINED WITH MEGAFLANGE

SERIES 2100 BY EBAA IRON OR WITH MCWANE DUCTILE IRON

BEVELED FILLER FLANGE OR APPROVED EQUAL.

5. GTO PIPING AT THE GRAVITY THICKENER SHALL BE INSULATED

AND HEAT TRACED ACCORDING TO SPECIFICATION 40 41 13 - HEAT

TRACING SYSTEMS.

1 BIT SET 05/2026 JTH

70 342

6" TPS, CL 256.17

SEE CIVIL FOR CONTINUATION

6" PSD, INV 271.00

SEE NOTE 4

EL 270.17

GROUT TOPPING,

SEE STRU DWGS

SKIMMER ARM,

SEE NOTE 1

CENTER SHAFT, SEE NOTE 1

RAKE ASSEMBLY,

SEE NOTE 1

EL 259.17

WALKWAY BRIDGE

MOTOR AND DRIVE,

SEE NOTE 1

8" OA, CL 256.67

SEE CIVIL FOR CONTINUATION

EL 255.42

EL 267.33

WEIR V-NOTCHED EL 269.05

FRP

HDPE

CONC PIPE ENCASEMENT.

DASHED LINES ARE FOR

REFERENCE ONLY

FEEDWELL, SEE NOTE 1

TANK WALL

DRIVE PLATFORM,

W/ ALUMINUM HANDRAIL

FEEDWELL SUPPORTS,

SUPPORTED FROM

CENTER SHAFT,

SEE NOTE 1

PICKETS, SEE NOTE 1

M302

8" OA

CL 272.83

S-03-0404

M-40-0104

EL 270.09

CONTRACTOR (GC)

GRAVITY

THICKENER

MANUFACTURER

S-05-0501

8" CONTROL DAMPER, TYP

8" OA

CL 274.67

AIR INTAKE W/ INSECT

SCREEN

8" EXPANSION JOINT

WEIR V-NOTCHED EL 269.05

GROUT TOPPING,

SEE STRU DWGS

SKIMMER ARM, SEE

NOTE 1

CENTER SHAFT, SEE NOTE 1

RAKE ASSEMBLY,

SEE NOTE 1

EL 259.17

6" PSD, INV 270.96

SEE NOTE 4

10" GTO

CL 261.67

6" TPS

CL 256.17

EL 259.17

WALKWAY BRIDGE

EL 267.33

EL 268.83

EL 270.17

AL FLAT COVER, SEE STRU DWGS

MOTOR AND DRIVE,

SEE NOTE 1

EL 273.00

CONC PIPE ENCASEMENT.

DASHED LINES ARE FOR

REFERENCE ONLY

FEEDWELL SUPPORTS,

SUPPORTED FROM CENTER

SHAFT, SEE NOTE 1

TANK WALL

DRIVE PLATFORM,

W/ ALUMINUM HANDRAIL

PICKETS, SEE

NOTE 1, TYP

FEEDWELL, SEE NOTE 1

RAKE BLADES, TYP

M-40-0105

S-03-0404

8" CONTROL DAMPER

8" OA

CL 274.67

EL 267.33

EL 270.17

SCUM TROUGH,

SEE NOTE 1

GROUT TOPPING, SEE

STRU DWGS

CENTER SHAFT,

SEE NOTE 1

RAKE ASSEMBLY,

SEE NOTE 1

WEIR V-NOTCHED EL 269.05

AL FLAT COVER, SEE STRU DWGS

WALKWAY BRIDGE

EL 259.17

, SEE DETAIL M-40-06-01

SCUM TROUGH

SUPPORT,

SEE NOTE 1

DRIVE PLATFORM,

W/ALUMINUM HANDRAIL

FEEDWELL SUPPORTS,

SUPPORTED FROM

CENTER SHAFT, SEE NOTE 1

PICKETS, SEE NOTE 1

FEEDWELL, SEE NOTE 1

6" EXPANSION JOINT

M-40-0108

6" PSM, CL 262.08

TO SCUM PIT

GUARD RAIL, PARTIALLY

HIDDEN FOR CLARITY

M-40-0104

EL 270.09

SKIMMER ARM,

SEE NOTE 1

COORDINATE CONNECTION TO

AL FLAT COVERS WITH COVER

MANUFACTURER. HARDWARE

SHALL BE TYPE 316 SST

V A

R

IE

S

AL FLAT COVER,

SEE STRU DWGS

8" OA

V A

R

IE

S

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W

P C

F S o lid s P ro c e s s in g I m p P h I /3

-0

-3

-G T

A -M

.r v t

/1

/2

:1 :5

P

M

M302

M. CASUCO

J. COYNE

S. CHIN

GRAVITY THICKENER A

MECHANICAL

SECTIONS AND DETAIL

SECTION

3/8" = 1'-0" M301

A

NOTES:

1. REFER TO SECTION 46 43 21.24 FOR MECHANISM SPECIFICATIONS AND

SCOPE OF SUPPLY.

2. CONTRACTOR SHALL PROVIDE PIPE SUPPORT IN ACCORDANCE WITH

SPECIFICATION 40 05 07 - PIPE SUPPORTS.

3. SECTIONS SHOWN SHALL BE SIMILAR FOR GRAVITY THICKENERS B

AND C UNLESS NOTED OTHERWISE ON THE M300, M320 OR M340

SERIES DRAWINGS.

4. EXPOSED PRIMARY SLUDGE PIPING SHALL HAVE A MINIMUM 1/8-INCH

SLOPE. SLOPE SHALL BE OBTAINED WITH MEGAFLANGE SERIES 2100

BY EBAA IRON OR WITH MCWANE DUCTILE IRON BEVELED FILLER

FLANGE OR APPROVED EQUAL.

5. CONTRACTOR SHALL COORDINATE WITH MECHANISM

MANUFACTURER FOR SUPPORT OF EXPOSED PIPING IN ACCORDANCE

WITH SPECIFICATION 46 43 21.23 GRAVITY THICKENER EQUIPMENT

6. ALL PRIMARY SLUDGE PIPING EXTERNAL TO SPLITTER BOX,

THICKENED SLUDGE PUMPING STATION AND GRAVITY THICKENER

SHALL BE INSULATED AND HEAT TRACED ACCORDING TO

SPECIFICATION 40 41 13 - HEAT TRACING SYSTEMS

SECTION

3/8" = 1'-0" M301

B

SECTION

3/8" = 1'-0" M301

C

DETAIL

NTS M302

1 BIT SET 05/2026 JTH

71 342

GRAVITY THICKENER B

O

T A

T

IO

N

6" TPS, CL 256.17, SEE CIVIL

FOR CONTINUATION

10" GTO, CL 261.67, SEE CIVIL

FOR CONTINUATION

6" PSM, CL 262.56, TO SCUM PIT

18" OA, CL 255.17±

SEE CIVIL FOR CONTINUATION

22' - 0" ø

3' - 4"

V-NOTCH WEIR, SEE NOTE 1

SCUM BAFFLE, SEE NOTE 1

SCUM TROUGH, SEE NOTE 1

SKIMMER ARM, SEE NOTE 1

RAKE ASSEMBLY, SEE NOTE 1

CENTER DRIVE

ASSEMBLY, SEE NOTE 1

AL FLAT COVERS, SEE

STRU DRAWINGS

AIR INTAKE W/

INSECT SCREEN

6" PSD, INV 271.00

SEE NOTE 4

GRAVITY THICKENER

PLATFORM, SEE NOTE 1

8" OA, CL 273.67

8" OA, CL 272.83, SEE CIVIL FOR

CONTINUATION

31B-121-1

S-05-0501

8" CONTROL DAMPER, TYP

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W

P C

F S o lid s P ro c e s s in g I m p P h I /3

-0

-3

-G T

B -M

.r v t

/1

/2

:2

:0

A

M

M320

M. CASUCO

J. COYNE

S. CHIN

GRAVITY THICKENER B

MECHANICAL

PLANS

3/8" = 1'-0"

BOTTOM PLAN

NN

3/8" = 1'-0"

TOP PLAN

NOTES:

1. REFER TO SECTION 46 43 21.24 FOR MECHANISM SPECIFICATIONS

AND SCOPE OF SUPPLY.

2. CONTRACTOR SHALL PROVIDE PIPE SUPPORT IN ACCORDANCE WITH

SPECIFICATION 40 05 07 - PIPE SUPPORTS.

3. GRAVITY THICKENER B TO BE SIMILAR TO GRAVITY THICKENER A

EXCEPT AS SHOWN HEREIN. REFER TO M300 SERIES DRAWINGS

FOR TYPICAL SECTIONS.

4. EXPOSED PRIMARY SLUDGE PIPING SHALL HAVE A MINIMUM 1/8-INCH

SLOPE. SLOPE SHALL BE OBTAINED WITH MEGAFLANGE SERIES 2100

BY EBAA IRON OR WITH MCWANE DUCTILE IRON BEVELED FILLER

FLANGE OR APPROVED EQUAL.

5. GTO PIPING AT THE GRAVITY THICKENER SHALL BE INSULATED AND

HEAT TRACED ACCORDING TO SPECIFICATION 40 41 13 - HEAT

TRACING SYSTEMS.

1 BID SET 05/2026 JTH

72 342

CENTER DRIVE

ASSEMBLY, SEE NOTE 1

AL FLAT COVERS, SEE

STRU DWGS

AIR INTAKE W/

INSECT SCREEN

GRAVITY THICKENER

PLATFORM, SEE NOTE 1

8" OA, CL 273.00, SEE CIVIL

FOR CONTINUATION

6" PSD, INV 270.97

SEE NOTE 4

31C-121-1

8" CONTROL DAMPER, TYP

TYPS-05-0501

8" OA, INV 274.32

18" OA, CL 255.08±

SEE CIVIL FOR CONTINUATION

6" PSM, CL 262.08, TO SCUM PIT

10" GTO, CL 261.67, SEE CIVIL

FOR CONTINUATION

R O

T A

T

IO

N

6" TPS, CL 256.17, SEE CIVIL

FOR CONTINUATION

3' - 4"

V-NOTCH WEIR, SEE NOTE 1

SCUM BAFFLE, SEE NOTE 1

SCUM TROUGH, SEE NOTE 1

SKIMMER ARM, SEE NOTE 1

RAKE ASSEMBLY, SEE NOTE 1

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W

P C

F S o lid s P ro c e s s in g I m p P h I /3

-0

-3

-G T

C -M

.r v t

/1

/2

:1

:0

A

M

M340

M. CASUCO

J. COYNE

S. CHIN

GRAVITY THICKENER C

MECHANICAL

PLANS

N N

NOTES:

1. REFER TO SECTION 46 43 21.24 FOR MECHANISM SPECIFICATIONS

AND SCOPE OF SUPPLY.

2. CONTRACTOR SHALL PROVIDE PIPE SUPPORT IN ACCORDANCE WITH

SPECIFICATION 40 05 07 - PIPE SUPPORTS.

3. GRAVITY THICKENER C TO BE SIMILAR TO GRAVITY THICKENER A

EXCEPT AS SHOWN HEREIN. REFER TO M300 SERIES DRAWINGS FOR

TYPICAL SECTIONS.

4. EXPOSED PRIMARY SLUDGE PIPING SHALL HAVE A MINIMUM 1/8-INCH

SLOPE. SLOPE SHALL BE OBTAINED WITH MEGAFLANGE SERIES 2100

BY EBAA IRON OR WITH MCWANE DUCTILE IRON BEVELED FILLER

FLANGE OR APPROVED EQUAL.

5. GTO PIPING AT THE GRAVITY THICKENER SHALL BE INSULATED AND

HEAT TRACED ACCORDING TO SPECIFICATION 40 41 13 - HEAT

TRACING SYSTEMS.

3/8" = 1'-0"

TOP PLAN

3/8" = 1'-0"

BOTTOM PLAN

1 BID SET 05/2026 JTH

73 342

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

Au to de sk

D oc s:

//3

-0

_W

PC

F So lid s

Pr oc es si ng Im p Ph

I/

1-

8-

0-

SC

P1

-M .rv t 5/

/2

6:

:1

PM

M400

C. TEJEDA DIAZ

M. MAZZOCHETTE

L. HERMAN

SCUM PIT 1

MECHANICAL

ISOMETRIC

ISOMETRIC - FOR ILLUSTRATIVE PURPOSES ONLY

1 BIT SET 05/2026 JTH

74 342

M403

M403

A_______

M403

B_______

M403

B_______

GRAVITY THICKENER A

GRAVITY THICKENER B

CLASS B CONC FILL, TYP

6'-0"Ø ID PRECAST CONC

MANHOLE, SEE SPEC 33 05 61

10" GTO, CL 261.67

LPT EL 259.33

HPT EL 259.67

S L O

P E

HPT EL 261.42

HPT EL 261.42

LPT EL 261.33

PRECAST CONC VAULT, SEE

SPEC 33 05 61

3" PSM, CL 262.00

3" PSM, CL 262.00

6" PSM, CL 262.08

6" PSM, CL 262.08

4" FLARE 90° BEND

2" D, CL 261.42

4" PLUG VALVE, TYP

4" DISMANTLING JOINT, TYP

4" PSM, CL 262.00

6' - 0"

SLOPE

SLOPE

5" DEFLECTOR, TYP

2" NOZZLE, TYP

TYPM-40-0111

6" RUBBER SLEEVE BOOT, TYP

4" SWING CHECK VALVE, TYP

3" QUICK DISCONNECT DISCHARGE, TYP

CHOPPER PUMP, TYP

38A-119-1

38A-119-2

18" OA, CL 256.17±

SEE CIVIL FOR CONTINUATION

4" PSM, CL 263.50, OVERFLOW

SEE NOTE 1

TOP EL 264.50

EL 263.33

NOTES:

1. FLEXIBLE RUBBER SLEEVE BOOTS WITH STAINLESS STEEL

CLAMPS TO BE PRESS SEAL - MODEL PSX DIRECT DRIVE OR

EQUAL.

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o c s /3

-0

W

P C

F S o lid s P ro c e s s in g I m p P h I /3

-0

-4

-S

C P

-M

.r v t

/1

/2

:5 :4

A

M

M401

C. TEJEDA DIAZ

M. MAZZOCHETTE

L. HERMAN

SCUM PIT 1

MECHANICAL

BOTTOM PLAN

3/4" = 1'-0"

BOTTOM PLAN

N

1 BIT SET 05/2026 JTH

75 342

M403

M403

A_______

M403

B_______

M403

B_______

GRAVITY THICKENER B

GRAVITY THICKENER A

6'-0"Ø ID PRECAST CONC MANHOLE,

SEE SPEC 33 05 61

AL ACCESS DOOR

S-05-0806

24" MANWAY W/ HINGED COVER,

PAD LOCK, AND HANDLE, SEE

NOTE 2

4" OA, CL 268.16

STEEL COVER PLATE, SEE NOTE 2

LE/LT

38A-119-1

PRECAST CONC VAULT,

SEE SPEC 33 05 61

LIFTING PLATE, SEE NOTE 2, TYP OF 3

4" AIR INTAKE W/ INSECT SCREEN

1' - 0" 3' - 6"

38A-119-1

38A-119-2

CHOPPER PUMP, TYP

SIMC-33-0631

4" CONTROL DAMPER

OIL LEVEL MONITOR, TYP

CHOPPER PUMP HANDLES, TYP

LIFTING EYE, TYP

S-03-0508

4" OA, CL 268.63

OA SUPPORT,

SEE DET 1/M403

NOTES:

1. FLEXIBLE RUBBER SLEEVE BOOTS WITH STAINLESS STEEL CLAMPS

TO BE PRESS SEAL - MODEL PSX DIRECT DRIVE OR EQUAL.

2. CONTRACTOR SHALL DESIGN AND PROVIDE A PAINTED STEEL SCUM

PIT COVER PLATE FOR SUPPORT OF THE PUMPS AND

APPURTENANCES SHOWN ON THE CONTRACT DRAWINGS. COVER

PLATE DESIGN SHALL INCORPORATE A HINGED STEEL MANWAY

WITH PAD LOCK AND HANDLE AND THREE (3) PERMANENT LIFTING

PLATES. CONTRACTOR SHALL COORDINATE COVER PLATE DESIGN

AND ANCHORAGE REQUIREMENTS WITH THE PRECAST CONCRETE

MANUFACTURER, SEE SPECIFICATION 05 50 00 AND 33 05 61.

DESIGNED THE SCALE BAR

SHOWN BELOW

MEASURES ONE

INCH LONG ON

THE ORIGINAL

DRAWING.

DATE:

H & S JOB

NUMBER

IFB NO.

500640-

FY27-02

DRAWING

NUMBER

PROJ.ENGR.

DRAWN

CHECKED

NO. ISSUED FOR DATE BY

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

J. HISE

MAY 2026

31111-098

SHEET OF XXAPPROVED

A u to d e s k D o…