Attachment E - Town of Leesburg Digester Sludge Storage Tank B Replacement.pdf

SHEET NUMBER

DESIGNED BY:

DRAWN BY:

CHECKED BY:

KHA PROJECT

DATE

© KIMLEY-HORN AND ASSOCIATES, INC.

WWW.KIMLEY-HORN.COM REGISTRY NO. 35106

PHONE: 703-674-1300 FAX: 703-674-1350

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PROGRESS

SUBMITTALCJH

PGS

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MAY 2026

110270036

No. Revisions By Date

T h is d o c u m e n t, to g e th e r w it h th e c o n c e p ts a n d d e si g n s p re se n te d h e re in a s a n in st ru m e n t o f se rv ic e is in te n d e d o n ly fo r th e sp e c if ic p u rp o se a n d c lie n t fo r w h ic h it w a s p re p a re d R e u se o f a n d im p ro p e r re lia n c e o n th is d o c u m e n t w it h o u t w ri tt e n a u th o ri za ti o n a n d a d a p ta ti o n b y K im le y-

H o rn a n d

A ss o c ia te s, In c sh a ll b e w it h o u t lia b ili ty to

K im le y-

H o rn a n d

A ss o c ia te s, In c

11400 COMMERCE PARK DRIVE SUITE #400, RESTON, VA 20191

BATTLEFIELD PKWY

RUSSEL BRANCH PKWY

E MARKET ST

EXISTING DSST

REPLACEMENT PROJECT

LOCATION

TOWN OF LEESBURG, VIRGINIA

CAPITAL IMPROVEMENT PROGRAM

OWNER:

TOWN OF LEESBURG

25 WEST MARKET STREET

LEESBURG, VA 20176

PHONE: (703) 771-2750

PREPARED BY:

11400 COMMERCE PARK DRIVE, SUITE 400

RESTON, VA 20191

PHONE: (703) 674-1300

PROJECT LOCATION:

1385 RUSSELL BRANCH PARKWAY SE, LEESBURG, VA 20175

1" = 240'

COVER G-000

TABLE OF SHEETS

PAGE NUMBER

G-000

SHEET NAME

C-101

COVER

EXISTING CONDITIONS

DEMOLITION PLAN

C-100

NORTH

GRAPHIC SCALE IN FEET

0 120 240 480

C-200 PROPOSED TANK PLAN

C-201 PROPOSED TANK PIPING PLAN

C-202 WALL, LADDER, AND ACCESS HATCH DETAILS

C-203 C-204

TANK DETAILS

PIPE DETAILS

GENERAL NOTES

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

23.

A.

B.

C.

D.

E.

a.

b.

24.

METHODS AND MATERIALS USED IN THE CONSTRUCTION OF THE IMPROVEMENTS HEREIN SHALL CONFORM TO THE CURRENT EDITION OF THE TOWN OF LEESBURG DESIGN AND CONSTRUCTION STANDARDS MANUAL

(DCSM).

CONTRACTOR TO SCHEDULE A PRE-CONSTRUCTION MEETING WITH THE TOWN OF LEESBURG AND

ENGINEER WITHIN 15 DAYS FROM NOTICE TO PROCEED AND PRIOR TO ANY LAND DISTURBANCE ACTIVITIES.

PRIOR TO ANY LAND DISTURBING ACTIVITIES, THE CONTRACTOR SHALL OBTAIN ALL NECESSARY PERMITS.

CONTRACTOR SHALL COORDINATE WITH THE TOWN OF LEESBURG TO COORDINATE ANY NECESSARY

ISOLATION OF EXISTING PIPES.

CONTRACTOR SHALL EXPOSE 5-FT ON EITHER SIDE OF ALL CONNECTION POINTS AND VERIFY THERE IS NOTHING IMPEDING THE DESIGN. SHOP DRAWING APPROVAL IS CONTINGENT UPON APPROVAL OF EXTENT

OF PIPE NEEDED FOR CONNECTION.

THE CONTRACTOR SHALL SUBMIT STRUCTURAL DRAWINGS AND SPECIFICATIONS FOR THE NEW DIGESTER TANK FOR APPROVAL. STRUCTURAL DRAWINGS SHALL BE SEALED BY A LICENSED PROFESSIONAL ENGINEER

IN THE COMMONWEALTH OF VIRGINIA.

THE CONTRACTOR SHALL ONLY WORK WITHIN THE TANK SITE PROPERTY BOUNDARIES.

THE CONTRACTOR IS RESPONSIBLE TO RESTORE THE PROPERTY TO ITS ORIGINAL CONDITION OR THE

CONDITION AGREED UPON WITH THE TOWN.

THE CONTRACTOR SHALL BE RESPONSIBLE FOR COSTS INCURRED FOR THE RELOCATION OF OR REPAIR OF

DAMAGE TO ANY UTILITIES DUE TO CONSTRUCTION.

MEASURES TO CONTROL EROSION AND SILTATION MUST BE PROVIDED AND INSTALLED ACCORDING TO ARTICLE 6 OF THE TOWN OF LEESBURG DCSM AND/OR THE CURRENT EDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. THE APPROVAL OF THESE PLANS IN NO WAY RELIEVES THE CONTRACTOR OR THEIR AGENT OF THE RESPONSIBILITIES CONTAINED IN THE SILTATION AND EROSION

CONTROL POLICY.

BURNING, BLASTING, TRANSPORTATION OR STORAGE OF EXPLOSIVES IS PROHIBITED ON THE PROJECT SITE.

SURVEY INFORMATION IS BASED ON THE VIRGINIA COORDINATE SYSTEM NAD83 - NORTH ZONE, AND THE VERTICAL DATUM IS NAVD88, BOTH ESTABLISHED BY GPS OBSERVATIONS. THE HORIZONTAL AND VERTICAL

UNIT OF MEASUREMENT IS THE U.S. SURVEY FOOT.

ALL STATIONING AND DISTANCE SHOWN IN THE PLANS ARE BASED ON HORIZONTAL MEASUREMENTS.

EXISTING UTILITIES, PIPELINES, AND STRUCTURES SHOWN ON THE DRAWINGS ARE IN ACCORDANCE WITH AVAILABLE RECORDS. THE CONTRACTOR SHALL VERIFY THE EXACT LOCATION, SIZE, TYPE, AND ELEVATION

OF ALL EXISTING PIPELINES AND STRUCTURES PRIOR TO COMMENCEMENT OF CONSTRUCTION.

THE CONTRACTOR SHALL BE RESPONSIBLE FOR DETERMINING THE LOCATION OF ALL EXISTING

UNDERGROUND UTILITIES PRIOR TO BEGINNING ANY CONSTRUCTION. CALL BEFORE YOU DIG 1-800-552-7001.

IT IS THE INTENTION OF THESE PLANS THAT ALL AREAS SHALL BE GRADED IN DETAIL SO AS TO PROVIDE

POSITIVE SURFACE DRAINAGE AND TO PREVENT THE PONDING OF WATER.

THE CONTRACTOR SHALL PROVIDE ADEQUATE MEANS OF CLEANING TRUCKS AND/OR OTHER EQUIPMENT OF MUD PRIOR TO ENTERING PUBLIC STREETS, AND IT IS THE CONTRACTOR'S RESPONSIBILITY TO CLEAN STREETS, ALLAY DUST, AND TO TAKE WHATEVER MEASURES ARE NECESSARY TO INSURE THAT THE ROAD IS

MAINTAINED IN A CLEAN, MUD AND DUST FREE CONDITION AT ALL TIMES.

IF TEST PIT DATA OR FIELD CONDITIONS SHOW THERE IS A CONFLICT WITH AN EXISTING UTILITY OR THE DESIGN HAS TO BE MODIFIED, SUBMIT THE TEST PIT DATA OR FIELD INFORMATION TO THE TOWN OF

LEESBURG.

THE CONTRACTOR SHALL NOT BE RELEASED FROM THE PROJECT UNTIL THE WORK AND FINAL INSPECTION ARE COMPLETED TO THE SATISFACTION OF THE TOWN OF LEESBURG. A REPRESENTATIVE OF THE TOWN OF

LEESBURG SHALL PROVIDE WRITTEN APPROVAL VERIFYING THAT THE WORK IS COMPLETE.

THE CONTRACTOR SHALL COORDINATE WITH THE TOWN ’S UTILITIES DEPARTMENT FOR ELECTRIC AND SCADA CONNECTIONS. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE INSTALLATION OF THE ELECTRICAL, SCADA, AND COMMUNICATION CONDUITS AS SHOWN IN THE PLANS. CONNECTION AND ACCESS

TO ELECTRIC IS AT NO COST TO THE CLIENT.

CONTRACTOR SHALL MAINTAIN AS-BUILT DRAWINGS FOR THE WORK AND PROVIDE COPIES TO THE TOWN OF

LEESBURG UPON COMPLETION OF THE WORK.

A GEOTECHNICAL REPORT, CONDUCTED BY TERRACON IN FEBRUARY 2026, IS PROVIDED IN APPENDIX A IN

THE TECHNICAL SPECIFICATIONS.

THE CONTRACTOR SHALL DESIGN THE TANK AND FOUNDATION IN ACCORDANCE WITH THE VIRGINIA BUILDING AND CONSTRUCTION CODE, ACI 318-19, ACI 350-20, AND THE REQUIREMENTS OF THE LOUDOUN COUNTY BUILDING AND STRUCTURAL DESIGN LOAD CRITERIA. SEE TECHNICAL SPECIFICATIONS FOR ALL

APPLICABLE CODES FOR EACH ELEMENT. THE LOADING CRITERIA ARE AT A MINIMUM:

GROUND SNOW LOAD: 30 PSF

FROST DEPTH: 24 INCHES

WIND SPEED: RISK CATEGORY IV (125 Vmph)

IRC SEISMIC SITE DESIGN CATEGORY: D

EARTHQUAKE VCC SECTION 1613:

10 MCER GROUND MOTION RESPONSE ACCELERATIONS OF 0.2 SECONDS SPECTRAL RESPONSE

ACCELERATION (5% OF CRITICAL DAMPING)

4 MCER GROUND MOTION 1 SECOND SPECTRAL RESPONSE ACCELERATION (5% CRITICAL

DAMPING)

SEISMIC LOADS PER ASCE 7-22:

Ss = 0.15g S1 = 0.042g Sms = 0.18g Sm1 = 0.089g Vs30 = 185 m/s

SEISMIC DESIGN CATEGORY: A

WATER POLLUTION CONTROL FACILITY

DIGESTER SLUDGE STORAGE TANK B REPLACEMENT

Sds = 0.12g Sd1 = 0.059g T1 = 8s PGA = 0.083g

NOTES

1.

2.

A.

B.

C.

D.

E.

F.

G.

H.

GEOTECHNICAL REPORT PROVIDED IS FOR INFORMATION ONLY. IF ADDITIONAL GEOTECHNICAL

INFORMATION IS NEEDED FOR DESIGN, THIS WILL BE THE RESPONSIBILITY OF THE TANK MANUFACTURER.

SPECIFICATIONS APPLICABLE TO THIS PROJECT INCLUDE BUT ARE NOT LIMITED TO:

02 41 19 - DSST B DEMOLITION

03 31 00 - CAST-IN-PLACE CONCRETE FOR PRECAST POST-TENSIONED CONCRETE TANK BASE SLABS

03 37 00 - PRESTRESSED CONCRETE STORAGE TANK (AWWA D110)

03 38 00 - PRECAST POST-TENSIONED CONCRETE TANKS - CIRCULAR (AWWA D115)

03 48 00 - PRECAST CONCRETE - VAULTS

08 31 13 - ACCESS HATCH

09 97 00 - SPECIAL COATINGS

APPENDIX A - TERRACON GEOTECHNICAL ENGINEERING REPORT

VEL. SUBRAMANIAN

Lic. No. 047552

VELMURUGAN

SUBRAMANIAN

5/15/2026

TOWN OF LEESBURG,

VIRGINIA

RUSSELL BRANCH PARKWAY

TANK CENTER

N: 7082219.889

E: 11757939.494 LOD

LODLO

D

LO

D

LOD LOD

LO

D

SYMBOL LEGENDSYMBOL LEGEND

MAY 2026

110270036

TOWN OF LEESBURG WPCF

DIGESTER SLUDGE STORAGE TANK B REPLACEMENT

SHEET NUMBER

DESIGNED BY:

DRAWN BY:

CHECKED BY:

KHA PROJECT

DATE

© KIMLEY-HORN AND ASSOCIATES, INC.

WWW.KIMLEY-HORN.COM REGISTRY NO. 35106

PHONE: 703-674-1300 FAX: 703-674-1350

100%

PROGRESS

SUBMITTAL11400 COMMERCE PARK DRIVE SUITE #400, RESTON, VA 20191

No. Revisions By Date

CJH

PGS

VS

EX. BOLTED TANK TO

BE REMOVED AND

REPLACED

EXISTING CONDITIONS C-100

REMOVE AND REPLACE

EX. 8" DISCHARGE PIPE

AND VALVE VAULT

REMOVE AND REPLACE EX.

6" PIPING AND VALVE VAULT

REMOVE AND REPLACE

EX. SIDEWALK

EX. 6" DIGESTER

SLUDGE PIPING - NOT

SURVEYED

EX. 8" DIGESTER

SLUDGE PIPING - NOT

SURVEYED

NOTES:

1. BOUNDARY INFORMATION SHOWN HEREON IS BASED ON EXISTING LAND RECORDS OF LOUDOUN COUNTY, VIRGINIA, AND FIELD VERIFIED BY THE SURVEYOR IN MARCH 2025. NORTH MERIDIAN INFORMATION SHOWN HEREON REFERENCES TO NAD 83 VIRGINIA STATE PLANE, NORTH ZONE. THE CAD FILE CONTAINING SURVEY AND TOPOGRAPHIC INFORMATION WAS PROVIDED BY THE TOWN OF LEESBURG ON SEPTEMBER 9, 2025.

2. THE CONTRACTOR MUST COORDINATE WITH THE TOWN OF LEESBURG REGARDING THE USAGE OF THE EXISTING ACCESS ROADS TO ENSURE ACCESS IS MAINTAINED FOR OTHER CONSTRUCTION ACTIVITIES ON-SITE AND REGULAR PLANT MATERIAL/CHEMICAL DELIVERIES.

3. CONTRACTOR SHALL COORDINATE THE STAGING AREA FOR THE TANK WITH THE TOWN OF LEESBURG AS PART OF THE OVERALL SOLIDS PROCESSING FACILITIES

UPGRADE PROJECT.

SUMMARY OF WORK:

1. REMOVE THE EXISTING STEEL TANK, FOUNDATION, AND TWO EXISTING VALVE VAULTS INCLUDING PIPING AND VALVES AS SHOWN ON SHEET C-101.

2. PROPOSED NEW DIGESTER SLUDGE STORAGE TANK SHALL BE CONSTRUCTED IN THE SAME LOCATION AS SHOWN ON SHEET C-200 TO C-204.

3. EXISTING LIGHT POLE AND BOLLARD MAY BE REMOVED DURING CONSTRUCTION AS NECESSARY. IF EXISTING INFRASTRUCTURE IS DAMAGED OR REMOVED DURING

CONSTRUCTION, THE INFRASTRUCTURE WILL NEED TO BE REPLACED IN KIND AFTER CONSTRUCTION IS COMPLETED.

REMOVE AND REPLACE EX.

BOLLARD AS NEEDED. SEE

SUMMARY OF WORK NOTE 3

CONTRACTOR TO

PROTECT EX. PUMP AND

CONCRETE PAD

REMOVE AND REPLACE

EX. LIGHT POLE AS

NEEDED. SEE SUMMARY

OF WORK NOTE 3

NORTH

CONTRACTOR TO

PROTECT EX.

STORAGE SHED

CONTRACTOR TO

PROTECT EX. PIPING

LIMITS OF

DISTURBANCE

VEL. SUBRAMANIAN

Lic. No. 047552

VEL. SUBRAMANIAN

Lic. No. 047552

VELMURUGAN

DRAWN BY:

CHECKED BY:

KHA PROJECT

DATE

© KIMLEY-HORN AND ASSOCIATES, INC.

WWW.KIMLEY-HORN.COM REGISTRY NO. 35106

PHONE: 703-674-1300 FAX: 703-674-1350

100%

PROGRESS

SUBMITTALCJH

PGS

VS

MAY 2026

110270036

No. Revisions By Date

T h is d o c u m e n t, to g e th e r w it h th e c o n c e p ts a n d d e si g n s p re se n te d h e re in a s a n in st ru m e n t o f se rv ic e is in te n d e d o n ly fo r th e sp e c if ic p u rp o se a n d c lie n t fo r w h ic h it w a s p re p a re d R e u se o f a n d im p ro p e r re lia n c e o n th is d o c u m e n t w it h o u t w ri tt e n a u th o ri za ti o n a n d a d a p ta ti o n b y K im le y-

H o rn a n d

A ss o c ia te s, In c sh a ll b e w it h o u t lia b ili ty to

K im le y-

H o rn a n d

A ss o c ia te s, In

D

D

D

DD

D D

D D

D

D

D

D

EX. GRADE AT

DIGESTER TANK

263'-0"

TOP OF TANK

298'-9"

8" OVERFLOW PIPE

296'-9"

6" FILL PIPE

268'-9"

LOWER 8" OVERFLOW

PIPE

281'-3"

PIPE CENTERLINE

259'-9"

42'-0"

'-0

BASE OF TANK

262'-0"

(VARIES)

INTERIOR STEEL TANK DIAMETER

AP

PR

O X.

3/16" = 1'-0"1 EX. DIGESTER TANK PLAN

3/16" = 1'-0"2 EX. DIGESTER TANK SECTION

C-101DEMOLITION PLAN

KEYNOTE NAME

1 EX. STEEL TANK SHELL

2 EX. DIGESTER FOUNDATION

3 EX. 8" DIP DRAIN PIPE

4 EX. 6" DS DIP

5 EX. 8" DIP OVERFLOW PIPE

6 EX. TANK ROOF

7 EX. LADDER AND SAFETY CAGE

8 EX. FLUSHING CONNECTION

9 EX. 5'X5' VALVE VAULT

10 EX. 6" GATE VALVE

11 EX. 8" GATE VALVE

12 EX. 8"x8" CROSS

13 EX. 8" 90 DEGREE BEND

14 EX. 6" 90 DEGREE BEND

16 EX. TANK VENT

17 EX. STREET LIGHT

18 EX. BOLLARD

19 EX. MANWAY

1.

2.

3.

NOTES:

ALL ELEVATIONS AND DIMENSIONS FOR THE EX. VALVE VAULTS, EX. PIPES, AND EX. DIGESTER

TANK ARE FROM RECORD DRAWINGS DATED MAY 2002.

ALL HORIZONTAL ALIGNMENTS FOR EXISTING DRAIN PIPES ARE TAKEN FROM THE WATER

POLLUTION CONTROL FACILITY BIOSOLIDS MANAGEMENT UPGRADE PROJECT PLANS AND ARE

APPROXIMATE LOCATIONS.

THIS SHEET DEPICTS THE EXISTING STEEL TANK THAT MUST BE REMOVED INCLUDING

FOUNDATION. REMOVE ALL ACCESSORIES AND APPURTENANCES, EXISTING TWO VAULTS, AND ALL PIPING INSIDE AND OUTSIDE THE TANK/VAULTS TO THE EXTENT OF 5 FT OUTSIDE OF THE VAULT.

EX. ROOF ACCESS HATCH

EX. ROOF ACCESS HATCH

EX 1849

EX 1848

EX 1847

EX 1853

EXISTING STEEL BOLTED TANK (TO BE REMOVED)

EX. FLANGED LEVEL

TRANSMITTER

EX. FLANGED LEVEL

TRANSMITTER

PHOTO 1: EX. TANK, LADDER, AND MANWAY PHOTO 2: EX. TANK AND VALVE VAULTS PHOTO 3: EX. TANK INTERIOR

PHOTO 4: EX. TANK ROOF, ACCESS HATCH (CENTER),

FLANGED LEVEL TRANSMITTER (LEFT), AND VENT (TOP)

EX. ENCLOSURE AND

TRANSMITTER

EX. ROOF GUARDRAIL

EX. ROOF GUARDRAIL

EX. PIPE SUPPORT (TYP)

EX. 8" 45 DEGREE BEND

EX. ELECTRIC LINE

EX. PUMP AND

CONCRETE PAD

EX. CONDUIT FOR

LEVEL TRANSMITTER

EX. DRAIN LINES (TYP)

SEE NOTE 2

EX. 24" PIPE

EX. EQUIPMENT SHED

EX. MISC. STRUCTURE

EX. PAVEMENT EDGE

EX. CONCRETE PAD

EX. BUILDING

LIMITS OF DEMOLITION

SEE NOTE 3

LIMITS OF DEMOLITION

SEE NOTE 3

VEL. SUBRAMANIAN

Lic. No. 047552

VEL. SUBRAMANIAN

Lic. No. 047552

VELMURUGAN

SUBRAMANIAN

5/15/2026 caleb.hanneman Polygon caleb.hanneman Polygon caleb.hanneman Polygon caleb.hanneman Polygon caleb.hanneman Polygon caleb.hanneman Rectangle caleb.hanneman Text Box

TO BE DEMOLISHED

caleb.hanneman Rectangle caleb.hanneman Polygon

DRAWN BY:

CHECKED BY:

KHA PROJECT

DATE

© KIMLEY-HORN AND ASSOCIATES, INC.

WWW.KIMLEY-HORN.COM REGISTRY NO. 35106

PHONE: 703-674-1300 FAX: 703-674-1350

100%

PROGRESS

SUBMITTALCJH

PGS

VS

MAY 2026

110270036

No. Revisions By Date

T h is d o c u m e n t, to g e th e r w it h th e c o n c e p ts a n d d e si g n s p re se n te d h e re in a s a n in st ru m e n t o f se rv ic e is in te n d e d o n ly fo r th e sp e c if ic p u rp o se a n d c lie n t fo r w h ic h it w a s p re p a re d R e u se o f a n d im p ro p e r re lia n c e o n th is d o c u m e n t w it h o u t w ri tt e n a u th o ri za ti o n a n d a d a p ta ti o n b y K im le y-

H o rn a n d

A ss o c ia te s, In c sh a ll b e w it h o u t lia b ili ty to

K im le y-

H o rn a n d

A ss o c ia te s, In

C-200

5'-0"

5'-0"

6'-6"

D

D D D

D

D

D

D

6'-9"

10'-0

6'-6"

EX. GRADE AT

DIGESTER TANK

263'-0"

TOP OF TANK

298'-9"

PIPE CENTERLINE

259'-9"

42'-0"

'-0

BASE OF TANK

262'-0"

(VARIES)

265'-9"

INTERIOR TANK DIAMETER

AP

PR

O X.

TOP OF BASE SLAB

56 25

D

D

D

DD

D

.8

5°

40.35°

.2

8°

27.41°

11.45°

2'-6"

2.59°

20.64°

C-200PROPOSED TANK PLAN

KEYNOTE NAME

17 EX. STREET LIGHT

18 EX. BOLLARD

20 PROP. DIGESTER SLUDGE STORAGE TANK

23 PROP. 50" FIBERGLASS VENTILATOR, SEE DETAIL ON SHEET

C-203

25 PROP. EXTERIOR LADDER WITH LOCKABLE GATE, SEE DETAIL

ON SHEET C-202

28 PROP. STAINLESS STEEL WALL MANHOLE

31 PROP. 10" DS DIP SUCTION MAIN

32 PROP. 8" DS DIP DISCHARGE MAIN

35 PROP. 5'X5' CONCRETE VALVE VAULT

36 PROP. LOCKABLE H-20 RATED ACCESS HATCH

37 PROP. 8" DS DIP DRAIN PIPE

38 PROP. 6" DIP

46 PROP. STAINLESS STEEL WALL MANHOLE, SEE DETAIL ON

SHEET C-203

47 PROP. EXTERIOR TANK LADDER

49 PROP. ROOF ACCESS HATCH, BILCO ROOF HATCH MODEL E

WITH GUARDRAIL (OR APPROVED EQUAL) SEE NOTE 8 AND

DETAIL ON SHEET C-202

53 PROP. ALUMINUM GUARDRAIL WITH TOE-BOARD, SEE DETAIL

ON SHEET C-203

55 PROP. 1" CONDUIT

56 PROP. LEVEL INDICATOR, SEE DETAIL ON SHEET C-203

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

NOTES:

IT SHALL BE THE CONTRACTORS' RESPONSIBILITY TO VERIFY THE EXACT

HORIZONTAL AND VERTICAL LOCATION OF ALL EXISTING UTILITIES AS NEEDED

PRIOR TO CONSTRUCTION INCLUDING EX. VALVE VAULTS, EX. PIPES, AND EX.

DIGESTER TANK. THE CONTRACTOR SHALL INFORM THE ENGINEER OF ANY

DISCREPANCIES THAT ARE NOTED BETWEEN THE PLANS AND THE EXISTING

CONDITIONS BASED ON THE UTILITY VERIFICATION AS WELL AS ANY POTENTIAL

CONSTRUCTION CONFLICTS THAT MAY ARISE FROM THESE DISCREPANCIES. ANY

DISCREPANCIES SHALL BE RECORDED BY THE CONTRACTOR IN THE AS-BUILTS.

ALL EXISTING DRAIN PIPES ARE TAKEN FROM THE WATER POLLUTION CONTROL

FACILITY BIOSOLIDS MANAGEMENT UPGRADE PROJECT PLANS AND ARE

APPROXIMATE LOCATIONS. CONTRACTOR SHALL VERIFY THE ELEVATION OF THE

DRAIN PIPES THAT THE PROPOSED PIPES ARE CROSSING PRIOR TO

INSTALLATION OF PROPOSED PIPES.

TANK FOUNDATION IS ILLUSTRATIVE ONLY. TANK FOUNDATION TO BE DESIGNED

BY THE TANK MANUFACTURER AND SUBMITTED AS A SHOP DRAWING FOR

APPROVAL. TANK FOUNDATION DESIGN SHALL BE DESIGNED IN ACCORDANCE

WITH THE GEOTECHNICAL REPORT LOCATED IN APPENDIX A IN THE TECHNICAL

SPECIFICATIONS. THE DESIGN SHALL BE PER ACI 350 AND BE SIGNED AND

SEALED BY A PROFESSIONAL ENGINEER LICENSED IN THE COMMONWEALTH OF

VIRGINIA.

SEE TECHNICAL SPECIFICATION SECTION 03 38 00 FOR POST-TENSIONED

CONCRETE TANKS OR SECTION 03 37 00 FOR PRESTRESSED CONCRETE TANKS.

THE TANK DESIGN SUBMITTAL SHALL BE SIGNED AND SEALED BY A

PROFESSIONAL ENGINEER LICENSED IN THE COMMONWEALTH OF VIRGINIA.

TANK AND ASSOCIATED DETAILS ARE ILLUSTRATIVE ONLY AND REPRESENTS THE

COMPONENTS AND ACCESSORIES REQUIRED BY AND ASSOCIATED WITH THE

PROPOSED STORAGE TANK.

CONTRACTOR SHALL SUBMIT SEALED STRUCTURAL DRAWINGS AND

SPECIFICATIONS FOR THE VALVE VAULT.

CONTRACTOR SHALL COORDINATE WITH THE TOWN OF LEESBURG'S UTILITIES

DEPARTMENT FOR ELECTRICAL AND SCADA CONNECTIONS. THE CONTRACTOR

SHALL BE RESPONSIBLE FOR THE INSTALLATION OF THE ELECTRICAL, SCADA,

AND COMMUNICATIONS CONDUITS AND APPURTENANCES. CONNECTION AND

ACCESS TO ELECTRIC IS AT NO COST TO THE CLIENT.

CONTRACTOR TO COORDINATE THE INSTALLATION OF THE BILCO ROOF HATCH

MODEL E WITH BILCO TO ENSURE COMPATABILITY WITH CONCRETE ROOF

STRUCTURE AND SUPPORT. ALTERNATE HATCH DESIGN CAN BE SUBMITTAL TO

THE TOWN OF LEESBURG AS A SHOP DRAWING FOR APPROVAL AND SHALL

FOLLOW OSHA REQUIREMENTS.

CONTRACTOR SHALL DESIGN AND CONSTRUCT THE LIGHTNING PROTECTION FOR

THE DSST B PER THE SPECIFICATIONS AND SUBMIT AS A SHOP DRAWING TO THE

TOWN OF LEESBURG FOR APPROVAL.

COATING APPLICATION IS TO BE COORDINATED WITH COATING MANUFACTURER.

IF JOINTS ARE PROPOSED IN THE CONCRETE, COATING INSTALLER MUST

COORDINATE WITH TANK MANUFACTURER AND COATING MANUFACTURER TO

ENSURE THAT JOINTS ARE COATED PER COATING MANUFACTURER DESIGN

STANDARDS.

3/16" = 1'-0"1 PROPOSED DIGESTER TANK PLAN

EX 1849

EX 1848

EX 1847

EX 1853

3/16" = 1'-0"2 PROPOSED DIGESTER TANK SECTION

PROPOSED DIGESTER

SLUDGE STORAGE TANK B

MIXING SYSTEM TO BE IN

INSTALLED A LATER

PROJECT PHASE

EX. ELECTRIC LINE

CONTRACTOR

TO PROTECT

EX. PUMP AND

CONCRETE PAD

REMOVE AND

REPLACE CONCRETE

SIDEWALK IN KIND

1/8" = 1'-0"4

PROPOSED DIGESTER TANK ROOF

PLAN

SEE SHEET C-201 FOR ALL

PIPING PLANS AND SECTIONS

SCADA TRANSMITTER

FOR LEVEL INDICATOR

IN METAL ENCLOSURE,

SEE NOTE 7

INSTALL CONCRETE VALVE VAULT (TYP OF 2)

WITH AN INSIDE LENGTH AND WIDTH OF 5'.

FILL BOTTOM OF VALVE VAULT UP TO THE INVERT

OF THE PROPOSED PIPES WITH #57 STONE

VALVE VAULT FOUNDATION TO BE DESIGNED BY

THE TANK CONTRACTOR

1/8" = 1'-0"3

PROPOSED DIGESTER TANK

GEOMETRY PLAN

EX 1849

EX 1848

EX 1847

EX 1853

APPROX. BASE

SLAB DIAMETER

FOUNDATION/BASE SLAB

EX. BOLLARD MAY BE

REMOVED AND

REPLACED DURING

CONSTRUCTION AS

NEEDED

TANK EXTERIOR TO BE

COATED AS SPECIFIED IN

SPECIFICATION SECTION

03 37 00 OR 03 38 00, SEE

NOTE 10

EX. STORAGE SHED

CONTRACTOR

TO PROTECT

EX. 24" PIPING

EX. LIGHT POLE MAY BE

REMOVED AND REPLACED

DURING CONSTRUCTION AS

NEEDED

EX. MISC. STRUCTURE

TANK INTERIOR TO BE

COATED AS SPECIFIED IN

SPECIFICATION SECTION

09 97 00, SEE NOTE 10

VEL. SUBRAMANIAN

Lic. No. 047552

VEL. SUBRAMANIAN

Lic. No. 047552

VELMURUGAN

EX. GRADE AT

DIGESTER TANK

263'-0"

TOP OF TANK

298'-9"

8" OVERFLOW PIPE

296'-9"

LOWER 8" OVERFLOW

PIPE

281'-3"

PIPE CENTERLINE

259'-9"

3' M

IN

PIPE BRACKETS

SPACING TO BE DESIGNED

BY TANK MANUFACTURER

SEE DETAIL ON SHEET C-204

45 3743

35 51 42 41

43 52

(VARIES)

SEE NOTE 9

EX. GRADE AT

DIGESTER TANK

263'-0"

PIPE CENTERLINE

259'-9"

3' M

IN

. (VARIES)58

EX. GRADE AT

DIGESTER TANK

263'-0"

6" FILL PIPE

268'-9"

PIPE CENTERLINE

259'-9"

34 38

51 41 36

3' M

IN

(VARIES)

C-201

C-201

C-201

D

D

D

D

D

D

D D

PROPOSED FLUSHING CONNECTION

SEE DETAIL ON SHEET C-204

6'-9"

SEE NOTE 1

SEE NOTE 1

C-201PROPOSED TANK PIPING PLAN

KEYNOTE NAME

3 EX. 8" DIP DRAIN PIPE

4 EX. 6" DS DIP

17 EX. STREET LIGHT

18 EX. BOLLARD

20 PROP. DIGESTER SLUDGE STORAGE TANK

26 PROP. ALUMINUM GUARDRAIL

31 PROP. 10" DS DIP SUCTION MAIN

32 PROP. 8" DS DIP DISCHARGE MAIN

33 PROP. 8" DIP LONG SOLID SLEEVE

34 PROP. 6" DIP LONG SOLID SLEEVE

35 PROP. 5'X5' CONCRETE VALVE VAULT

36 PROP. LOCKABLE H-20 RATED ACCESS HATCH

37 PROP. 8" DS DIP DRAIN PIPE

38 PROP. 6" DIP

39 PROP. 8" DIP OVERFLOW PIPE

40 PROP. 6" PLUG VALVE

41 PROP. 8" PLUG VALVE

42 PROP. 8"x8" CROSS

43 PROP. 8" 90 DEGREE BEND

44 PROP. 6" 90 DEGREE BEND

45 PROP. 8" DIP DISCHARGE PIPE

46 PROP. STAINLESS STEEL WALL MANHOLE, SEE

DETAIL ON SHEET C-203

51 PROP. FLUSHING CONNECTION

52 PROP. COMPACT #57 STONE

54 PROP. PRESSURE INDICATOR TRANSMITTER

57 PROP. 8" 45 DEGREE BEND

58 PROP. 10" 45 DEGREE BEND

EX 1849

EX 1848

EX 1847

EX 1853

APPROX. EX. 8" 45 DEGREE BEND

SEE NOTE 2

PROPOSED 10" SUCTION MAIN

TO SLUDGE MIXING BUILDING

AND INSTALL 10" CAP (TO

CONTINUE AS YARD PIPING IN A

LATER PROJECT PHASE)

CL ELEV. = 257' 3"

PROPOSED 8" DISCHARGE MAIN

TO SLUDGE MIXING BUILDING

AND INSTALL 8" CAP (TO

CONTINUE AS YARD PIPING IN A

DIFFERENT PHASE)

CL ELEV. = 257' 3"

INSTALL 8" DIP TO

THIS FLANGE

MIXING SYSTEM TO BE

INSTALLED IN A LATER

PROJECT PHASE

MIXING SYSTEM TO BE

INSTALLED IN A LATER

PROJECT PHASE

EX. ELECTRIC LINE

EX. PUMP AND

CONCRETE PAD

PROPOSED 10" SUCTION MAIN TO

SLUDGE MIXING BUILDING

AND INSTALL 10" CAP (TO

CONTINUE AS YARD PIPING IN A

DIFFERENT PHASE)

PROPOSED 8" DISCHARGE MAIN TO

SLUDGE MIXING BUILDING

AND INSTALL 8" CAP (TO CONTINUE

AS YARD PIPING IN A DIFFERENT

PHASE)

3/16" = 1'-0"2

8" DRAIN AND DISCHARGE PIPES

SECTION

3/16" = 1'-0"3

SLUDGE MIXING BUILDING PIPING

SECTION

3/16" = 1'-0"4 PROPOSED 6" DS DIP SECTION

3/16" = 1'-0"1

PROPOSED DIGESTER TANK PIPING

PLAN

PROPOSED DIGESTER

SLUDGE STORAGE TANK B

1.

2.

3.

4.

5.

6.

7.

A.

B.

C.

D.

8.

9.

NOTES:

IT SHALL BE THE CONTRACTORS' RESPONSIBILITY TO VERIFY THE EXACT

HORIZONTAL AND VERTICAL LOCATION OF ALL EXISTING UTILITIES AS

NEEDED PRIOR TO CONSTRUCTION INCLUDING EX. VALVE VAULTS, EX.

PIPES, AND EX. DIGESTER TANK. THE CONTRACTOR SHALL INFORM THE

ENGINEER OF ANY DISCREPANCIES THAT ARE NOTED BETWEEN THE PLANS

AND THE EXISTING CONDITIONS BASED ON THE UTILITY VERIFICATION AS

WELL AS ANY POTENTIAL CONSTRUCTION CONFLICTS THAT MAY ARISE

FROM THESE DISCREPANCIES. ANY DISCREPANCIES SHALL BE RECORDED

BY THE CONTRACTOR IN THE AS-BUILTS.

LOCATION OF THE 8" 45 DEGREE BEND WAS TAKEN FROM RECORD

DRAWINGS. CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE EXACT

HORIZONTAL AND VERTICAL LOCATION OF THIS BEND AND CONNECTING

THE 8" LONG SOLID SLEEVE AT LEAST 2' BEFORE THE BEND.

ALL EXISTING DRAIN PIPES ARE TAKEN FROM THE WATER POLLUTION

CONTROL FACILITY BIOSOLIDS MANAGEMENT UPGRADE PROJECT PLANS

AND ARE APPROXIMATE LOCATIONS. CONTRACTOR SHALL VERIFY THE

ELEVATION OF THE DRAIN PIPES THAT THE PROPOSED PIPES ARE

CROSSING PRIOR TO INSTALLATION OF PROPOSED PIPES.

ALL PIPING UNDER THE FOUNDATION SLAB SHALL BE ENCASED IN

CONCRETE. SEE FLEXIBLE JOINT FOR PIPE ENCASEMENT DETAIL ON SHEET

C-203.

SUMP TO BE CENTERED WITHIN TANK AND HAVE A MINIMUM INNER

DIAMETER OF 4 FEET.

TANK FOUNDATION IS ILLUSTRATIVE ONLY. TANK FOUNDATION TO BE

DESIGNED BY THE TANK MANUFACTURER AND SUBMITTED AS A SHOP

DRAWING FOR APPROVAL. TANK FOUNDATION DESIGN SHALL BE DESIGNED

IN ACCORDANCE WITH THE GEOTECHNICAL REPORT LOCATED IN APPENDIX

A IN THE TECHNICAL SPECIFICATIONS. TANK MANUFACTURER TO ACCOUNT

FOR DIFFERENTIAL SETTLEMENT AS NOTED IN THE GER. THE DESIGN

SHALL BE PER ACI 350 AND BE SIGNED AND SEALED BY A PROFESSIONAL

ENGINEER LICENSED IN THE COMMONWEALTH OF VIRGINIA.

CONTRACTOR SHALL INSTALL A PRESSURE INDICATING TRANSMITTER (PIT)

AND SUBMIT AS A SHOP DRAWING FOR APPROVAL. THE PIT SHALL BE FROM

THE FOLLOWING MANUFACTURERS:

ENDRESS AND HAUSER, MODEL PMP71

ROSEMOUNT, MODEL 3051

ABB, MODEL 2600T

OR APPROVED EQUAL

CONTRACTOR SHALL INSTALL A NON-CONTACT RADAR LEVEL SENSOR TO

MEASURE THE LIQUID LEVEL IN THE TANK, AN INTERCONNECTION CABLE,

AND ELECTRONICS UNIT.

PIPE FLOOR PENETRATION IS ILLUSTRATIVE ONLY. PIPE FLOOR

PENETRATION TO BE DESIGNED BY THE TANK MANUFACTURER AND

SUBMITTED AS A SHOP DRAWING FOR APPROVAL.

SEE NOTE 4

SEE NOTE 4

SEE NOTE 4

SEE NOTE 1

SEE NOTE 1

5 PROPOSED TANK ISOMETRIC VIEW

CONTRACTOR

TO PROTECT

EX. 24" PIPING

SEE NOTE 6

SEE NOTE 9

SEE NOTE 9

VEL. SUBRAMANIAN

Lic. No. 047552

VEL. SUBRAMANIAN

Lic. No. 047552

VELMURUGAN

MAY 2026

110270036

TOWN OF LEESBURG WPCF

DIGESTER SLUDGE STORAGE TANK B REPLACEMENT

SHEET NUMBER

DESIGNED BY:

DRAWN BY:

CHECKED BY:

KHA PROJECT

DATE

© KIMLEY-HORN AND ASSOCIATES, INC.

WWW.KIMLEY-HORN.COM REGISTRY NO. 35106

PHONE: 703-674-1300 FAX: 703-674-1350

100%

PROGRESS

SUBMITTAL11400 COMMERCE PARK DRIVE SUITE #400, RESTON, VA 20191

No. Revisions By Date

CJH

PGS

VS

WALL, LADDER, AND ACCESS HATCH DETAILS C-202VEL. SUBRAMANIAN

Lic. No. 047552

VEL. SUBRAMANIAN

Lic. No. 047552

VELMURUGAN

3'2"

MAY 2026

110270036

TOWN OF LEESBURG WPCF

DIGESTER SLUDGE STORAGE TANK B REPLACEMENT

SHEET NUMBER

DESIGNED BY:

DRAWN BY:

CHECKED BY:

KHA PROJECT

DATE

© KIMLEY-HORN AND ASSOCIATES, INC.

WWW.KIMLEY-HORN.COM REGISTRY NO. 35106

PHONE: 703-674-1300 FAX: 703-674-1350

100%

PROGRESS

SUBMITTAL11400 COMMERCE PARK DRIVE SUITE #400, RESTON, VA 20191

No. Revisions By Date

CJH

PGS

VS

TANK DETAILS C-203VEL. SUBRAMANIAN

Lic. No. 047552

VEL. SUBRAMANIAN

Lic. No. 047552

VELMURUGAN

MAY 2026

110270036

TOWN OF LEESBURG WPCF

DIGESTER SLUDGE STORAGE TANK B REPLACEMENT

SHEET NUMBER

DESIGNED BY:

DRAWN BY:

CHECKED BY:

KHA PROJECT

DATE

© KIMLEY-HORN AND ASSOCIATES, INC.

WWW.KIMLEY-HORN.COM REGISTRY NO. 35106

PHONE: 703-674-1300 FAX: 703-674-1350

100%

PROGRESS

SUBMITTAL11400 COMMERCE PARK DRIVE SUITE #400, RESTON, VA 20191

No. Revisions By Date

CJH

PGS

VS

PIPE DETAILS C-204VEL. SUBRAMANIAN

Lic. No. 047552

VEL. SUBRAMANIAN

Lic. No. 047552

VELMURUGAN