27500003 IFB WWTF Digester Boiler and Heat Exchanger Building

IT IS A VIOLATION OF LAW FOR ANY PERSON, UNLESS THEY ARE
ACTING UNDER THE DIRECTION OF A LICENSED PROFESSIONAL
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR TO ALTER AN ITEM IN ANY WAY. IF AN ITEM BEARING THE
STAMP OF A LICENSED PROFESSIONAL IS ALTERED, THE ALTERING
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR SHALL STAMP THE DOCUMENT AND INCLUDE THE
NOTATION "ALTERED BY" FOLLOWED BY THEIR SIGNATURE, THE
DATE OF SUCH ALTERATION, AND A SPECIFIC DESCRIPTION
OF THE ALTERATION.
No. Submittal Revision Apv By Date
Designed By: Drawn By: Checked By:
Issue Date: Project No.: Scale:
432026 87506
Drawing No.:
TWD.TLUAFED-AHC-RDRB\SETALPMET\TROPPUS.KSEDOTUA.\SELIF
TCEJORP\RELIOB
RETSEGID
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605780\AHC\SCODCCA\CD\2015\SRESU\:C
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Drawing Copyright (C) 2025
TOWN OF CHRISTIANSBURG
1341 Research Center Drive, Suite 2100
Blacksburg, VA 24060-5548
540.552.5548 . www.chasolutions.com
WASTEWATER TREATMENT FACILITY
DIGESTER BOILER AND HEAT EXCHANGER BUILDING
100 EAST MAIN STREET
CHRISTIANSBURG,
VIRGINIA 24073
PROJECT SITE: PREPARED BY:
PREPARED FOR:
TOWN OF CHRISTIANSBURG CHA CONSULTING, INC
TOWN OF CHRISTIANSBURG
WASTEWATER TREATMENT FACILITY 1341 RESEARCH CENTER DRIVE
100 EAST MAIN STREET
2557 CRAB CREEK ROAD SUITE 2100
CHRISTIANSBURG, VIRGINIA 24073
CHRISTIANSBURG, VIRGINIA 24073 BLACKSBURG, VIRGINIA 24060 7/7/2026
(540) 382-6128
(540) 552-5548
NEW BOILER AND HEAT
EXCHANGER BUILDING LOCATION
TOWN OF CHRISTIANSBURG
WASTEWATER TREATMENT
FACILITY
DIGESTER BOILER AND HEAT
EXCHANGER BUILDING
PROJECT SITE
- BID ISSUE JHMJHM 070726
COVER SHEET
LOCATION MAP PLANT AERIAL SITE MAP
NOT TO SCALE NOT TO SCALE
JHM
AS SHOWN
G0-001

IT IS A VIOLATION OF LAW FOR ANY PERSON, UNLESS THEY ARE ACTING UNDER THE DIRECTION OF A LICENSED PROFESSIONAL
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR TO ALTER AN ITEM IN ANY WAY. IF AN ITEM BEARING THE
STAMP OF A LICENSED PROFESSIONAL IS ALTERED, THE ALTERING
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR SHALL STAMP THE DOCUMENT AND INCLUDE THE
NOTATION "ALTERED BY" FOLLOWED BY THEIR SIGNATURE, THE
DATE OF SUCH ALTERATION, AND A SPECIFIC DESCRIPTION
OF THE ALTERATION.
No. Submittal Revision Apv By Date
Designed By: Drawn By: Checked By:
Issue Date: Project No.: Scale:
432026 87506
Drawing No.:
GWD.605780-200-0G\STEEHS_10\SGNIWARD\NGISED_90\SELIF
TCEJORP\RELIOB
RETSEGID
GRUBSNAITSIRHC
605780\AHC\SCODCCA\CD\2015\SRESU\:C
:eliF
2015
:yBdevaStsaL
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Drawing Copyright (C) 2025
GENERAL NOTES
SHEET NUMBER SHEET TITLE
1341 Research Center Drive, Suite 2100
1. CONTRACTOR SHALL FIELD VERIFY ALL EXISTING SITE CONDITIONS PRIOR TO COMMENCING GENERAL
Blacksburg, VA 24060-5548
WORK AND SHALL IMMEDIATELY NOTIFY ENGINEER IN WRITING OF ANY DISCREPANCIES. 540.552.5548 . www.chasolutions.com
G0-001 COVER SHEET
G0-002 DRAWING INDEX, GENERAL NOTES
2. CONTRACTOR SHALL CONFINE ALL CONSTRUCTION ACTIVITIES ASSOCIATED WITH WORK
SPECIFIED UNDER THIS CONTRACT TO THE AREA WITHIN LIMITS OF CONSTRUCTION. G0-003 GENERAL LEGENDS AND ABBREVIATIONS
G0-101 PROCESS FLOW DIAGRAM (SOLIDS)
3. CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR SITE SAFETY AND FOR COMPLIANCE WITH ALL
G0-102 PROCESS FLOW DIAGRAM (SOLIDS CONT.)
FEDERAL, STATE AND LOCAL HEALTH AND SAFETY CODES, LAWS, REGULATIONS AND
ORDINANCES INCLUDING, BUT NOT LIMITED TO THE OCCUPATIONAL SAFETY AND HEALTH G0-201 PID - DIGESTER GAS - DEMOLITION
ADMINISTRATION (OSHA). G0-202 PID - ANAEROBIC DIGESTION, DIGESTER SLUDGE - DEMOLITION
G0-203 PID - DIGESTER GAS - PROPOSED
4. THE CONTRACTOR SHALL PROVIDE A DETAILED CONSTRUCTION PLAN AND SCHEDULE TO THE
G0-204 PID - ANAEROBIC DIGESTION, DIGESTER SLUDGE - PROPOSED
ENGINEER FOR APPROVAL PRIOR TO BEGINNING ANY CONSTRUCTION ACTIVITY.
G0-205 PID - NEW HEAT EXCHANGER BLDG
5. CONTRACTOR SHALL RESTORE ALL AREAS DISTURBED BY CONSTRUCTION; INCLUDING ACCESS
G0-301 EXISTING CONDITIONS AND NFPA 820 CLASSIFICATION
AND SITE ROADWAYS, DITCHES, DRAINAGE STRUCTURES AND OTHER EXISTING FEATURES TO
CIVIL
THEIR ORIGINAL CONDITION OR TO A CONDITION SATISFACTORY TO THE ENGINEER.
C0-001 CIVIL LEGEND AND NOTES
6. ALL REQUIRED TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE INSTALLED 100 EAST MAIN STREET
C0-002 MASTER SITE KEY PLAN
AND MAINTAINED BY THE CONTRACTOR IN ACCORDANCE WITH THE APPROVED SEDIMENT AND CHRISTIANSBURG,
C0-003 EXISTING SITE INFORMATION
EROSION CONTROL PLAN.
VIRGINIA 24073
C0D-101 EXISTING SITE TOPOGRAPHY AND YARD PIPING WITH DEMOLITION
7. CONTRACTOR SHALL OBTAIN ALL REQUIRED PERMITS AND PAY ALL FEES OF SUCH PRIOR TO C0-101 PROPOSED YARD PIPING AND GRADING PLAN
COMMENCING WORK.
C0-400 EROSION AND SEDIMENT CONTROL NARRATIVE
8. CONTRACTOR SHALL BE RESPONSIBLE FOR THE STAKING AND LAYOUT OF ALL PROPOSED C0-401 EROSION AND SEDIMENT CONTROL DETAILS
STRUCTURES AND IMPROVEMENTS. C0-402 EROSION AND SEDIMENT CONTROL
C0-501 STANDARD CIVIL DETAILS
9. MATERIAL SCHEDULES AND LISTS INCLUDED AS A PART OR WITH THESE CONSTRUCTION
C0-502 STANDARD CIVIL DETAILS
DRAWINGS ARE FURNISHED TO THE CONTRACTOR FOR REFERENCE PURPOSES ONLY. THESE
SCHEDULES AND LISTS SHALL NOT BE CONSTRUED A BILL OF MATERIALS UPON WHICH TO BASE A ARCHITECTURE
BID. THE CONTRACTOR SHALL BE RESPONSIBLE TO REVIEW AND TAKE INTO CONSIDERATION
A-001 DIGESTER BOILER BUILDING - CODE INFORMATION AND LIFE SAFETY
ALL DETAILED DRAWINGS, SCHEMATICS AND TECHNICAL SPECIFICATIONS INCLUDED UNDER THIS
A-101 DIGESTER BOILER BUILDING - GROUND FLOOR PLAN
CONTRACT IN THE PREPARATION OF HISHER BID AND PERFORMANCE OF THE WORK.
A-201 DIGESTER BOILER BUILDING - EXTERIOR ELEVATIONS & BUILDING SECTIONS
10. CONTRACTOR SHALL CONFIRM ALL CONNECTIONS AND TIE-POINTS OF PROPOSED WORK WITH
STRUCTURAL
EXISTING FACILITIES INCLUDING ALL STRUCTURAL, MECHANICAL, ELECTRICAL, PIPING AND
S-001 NOTES, LEGENDS, AND ABBREVIATIONS
OTHER UTILITY SYSTEMS. PROVIDE SKETCH TO ENGINEER OF ANY DISCREPANCIES.
S-100 FOUNDATION SLAB PLAN AND SECTIONS 7/7/2026
11. CONTRACTOR SHALL PROVIDE ANY SHORING REQUIRED TO PROTECT EXISTING FACILITIES S-700 TYPICAL SECTIONS AND DETAILS
DURING EXCAVATION FOR INSTALLATION OF PROPOSED STRUCTURES AND UTILITIES.
PROCESS
CONTRACTOR SHALL BE RESPONSIBLE FOR SHORING DESIGN. DESIGN SHALL BE PERFORMED BY A
REGISTERED PROFESSIONAL ENGINEER LICENSED TO PRACTICE IN THE COMMONWEALTH OF D0-501 PROCESS DETAILS
VIRGINIA. ALL ANTICIPATED COSTS FOR SHORING AND DESIGN SHALL BE INCLUDED IN THE D0-502 PROCESS DETAILS
CONTRACTOR'S BASE BID PRICE.
D0-503 GAS MONITORING AND SAFETY SYSTEM
D7D-101 DIGESTER BUILDING- DEMOLITION PLAN AND SECTION
12. THE CONTRACTOR SHALL BE RESPONSIBLE TO PROVIDE ALL TEMPORARY PIPING, PUMPING OF
FLOWS AND UTILITY SERVICE INCLUDING POWER, AS REQUIRED TO MAINTAIN PLANT D7D-901 DIGESTED SLUDGE AND DIGESTER GAS PIPING DEMO ISOMETRIC
OPERATIONS AS DESCRIBED IN THE SPECIFICATIONS.
D7-101 DIGESTER BUILDING NEW WORK
D7-901 DIGESTER BUILDING NEW WORK ISOMETRICS
13. ALL TEMPORARY PIPING AND UTILITIES SHALL BE INSTALLED IN TRENCHES AND BACKFILLED.
CONTRACTOR SHALL PROTECT ALL TEMPORARY LINES FROM FREEZING. D8-101 HEAT EXCHANGER BUILDING PLAN
MECHANICAL
14. PROVISIONS FOR THE PROTECTION OF PROCESS WATER FROM FOREIGN MATERIAL, CHEMICALS,
TOWN OF CHRISTIANSBURG
M-101 MECHANICAL PLAN
AND DEBRIS SHALL BE MADE DURING ALL STAGES OF CONSTRUCTION.
WASTEWATER TREATMENT
M-201 MECHANICAL DETAILS
FACILITY
15. CONTRACTOR SHALL ENSURE FACILITY REMAINS IN OPERATION AND MAINTAINS THE ABILITY TO M-301 MECHANICAL SCHEDULES AND CONTROLS
TREAT AND HANDLE WASTEWATER FLOWS TO THE FLOWS AND STANDARD AS ESTABLISHED IN
ELECTRICAL
ITS VPDES PERMIT - VA 0061751. DIGESTER BOILER AND HEAT
E0-001 ELECTRICAL NOTES, ABBREV., LEGEND
EXCHANGER BUILDING
16. ALTHOUGH SUCH WORK MAY NOT BE SPECIFICALLY SHOWN, THE CONTRACTOR SHALL FURNISH E0-101 ELECTRICAL SITE PLAN
AND INSTALL ANY SUPPLEMENTAL OR MISCELLANEOUS ITEMS, PIPING, CONDUIT, WIRING, AND
E0-102 ONE-LINE DIAGRAM
APPURTENANCES AND DEVICES INCIDENTAL TO OR NECESSARY FOR A SOUND AND COMPLETELY
E0-601 ELECTRICAL DETAILS
OPERATIONAL INSTALLATION.
E7D-101 ANAEROBIC DIGESTER BLDG- EXISTING UPPER LEVEL DEMO PLAN
17. DRAINING AND CLEANING OF PIPING FOR THE PERFORMANCE OF CONTRACT WORK WILL BE BY
E7-101 ANAEROBIC DIGESTER BLDG - ELECTRICAL ROOM PLAN
CONTRACTOR. ALL COSTS ASSOCIATED WITH DRAINING AND CLEANING SHALL BE BORNE BY
E8-101 HEAT EXCHANGER BLDG - LIGHTING AND POWER PLAN
CONTRACTOR UNLESS SPECIFICALLY STATED OTHERWISE.
ED9-101 ENERGY RECOVERY - ELECTRICAL DEMOLITION
18. CONSTRUCTION OPERATIONS SHALL BE SCHEDULED TO ALLOW THE OWNER UNINTERRUPTED
ED9-102 BLOWER BUILDING - ENERGY RECOVERY ELEC DEMO
ACCESS AND OPERATION OF EXISTING AND ADJACENT FACILITIES.
IC0-001 SCADA AREA CONTROL PANEL 'ACP-5' MODIFICATIONS
19. CONTRACTOR SHALL BE FULLY RESPONSIBLE FOR COORDINATION OF ALL CONSTRUCTION
ACTIVITY WHICH REQUIRES ACTION BY OWNER'S PERSONNEL.
20. EXISTING MASTER SITE KEY PLAN AND STREAM LOCATION WAS SOURCED FROM THE TOWN OF
CHRISTIANSBURG WASTEWATER TREATMENT FACILITY - 4 MGD EXPANSIONUPGRADE (1998
OLVER), AND TOWN OF CHRISTIANSBURG WASTEWATER TREATMENT PLANT (1976 R STUART
ROYER AND ASSOCIATES). THE 100-YEAR FLOOD ELEVATION OF 1830 FT WAS FIRST REFERENCED
IN 1976 R STUART ROYER, TOWN OF CHRISTIANSBURG WASTEWATER TREATMENT PLANT PLANS.
EXISTING DIGESTER BUILDING AND HEAT EXCHANGER PIPING WAS SOURCED FROM THE TOWN OF
CHRISTIANSBURG WWTF ANAEROBIC DIGESTER IMPROVEMENTS (2008 OLVER), AND TOWN OF
CHRISTIANSBURG ENERGY RECOVERY PROJECT (2010 OLVER). THE CONTRACTOR SHALL BE
RESPONSIBLE FOR VERIFYING ALL EXISTING CONDITIONS AND NOTIFY THE ENGINEER, IN
- BID ISSUE JHMJHM 070726
WRITING, OF ANY CONFLICTS PRIOR TO CONSTRUCTION.
21. DUE TO THE VARIATION IN EQUIPMENT APPROVED FOR BID UNDER THIS CONTRACT, NOT ALL
DRAWING INDEX, CONDUIT, WIRING OR SMALL DIAMETER PIPING HAS NECESSARILY BEEN SHOWN ON THE
DRAWINGS. HOWEVER THE CONTRACTOR SHALL BE RESPONSIBLE TO PROVIDE ALL REQUIRED
GENERAL NOTES
PIPING, CONDUIT AND WIRING INCIDENTAL TO OR NECESSARY FOR A SOUND AND COMPLETELY
OPERATIONAL INSTALLATION.
22. ACCESS TO ALL EXISTING FACILITIES SHALL BE MAINTAINED BY THE CONTRACTOR THROUGHOUT
CONSTRUCTION
JHM
23. THE CONTRACTOR SHALL PROVIDE A DETAILED CONSTRUCTION PLAN AND SCHEDULE TO THE
ENGINEER FOR APPROVAL PRIOR TO BEGINNING ANY CONSTRUCTION ACTIVITY. AS SHOWN
G0-002

IT IS A VIOLATION OF LAW FOR ANY PERSON, UNLESS THEY ARE ACTING UNDER THE DIRECTION OF A LICENSED PROFESSIONAL
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR TO ALTER AN ITEM IN ANY WAY. IF AN ITEM BEARING THE
STAMP OF A LICENSED PROFESSIONAL IS ALTERED, THE ALTERING
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR SHALL STAMP THE DOCUMENT AND INCLUDE THE NOTATION "ALTERED BY" FOLLOWED BY THEIR SIGNATURE, THE
DATE OF SUCH ALTERATION, AND A SPECIFIC DESCRIPTION
OF THE ALTERATION.
No. Submittal Revision Apv By Date
Designed By: Drawn By: Checked By:
Issue Date: Project No.: Scale:
432026 87506
Drawing No.:
GWD.605780-300-0G\STEEHS_10\SGNIWARD\NGISED_90\SELIF
TCEJORP\RELIOB
RETSEGID
GRUBSNAITSIRHC
605780\AHC\SCODCCA\CD\2015\SRESU\:C
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Drawing Copyright (C) 2025
ABBREVIATIONS PIPING AND INSTRUMENTATION LEGEND GENERAL SYMBOL LEGEND
NOTE: ALL ABBREVIATIONS MAY NOT APPLY TO THIS PROJECT. EXISTING LINE SYMBOLS PROPOSED EQUIPMENT ABBR. SYMBOL DESCRIPTION 1341 Research Center Drive, Suite 2100
Blacksburg, VA 24060-5548
@ AT K KIPS 540.552.5548 . www.chasolutions.com
& AND L LENGTH
V VALVE
AB ANCHOR BOLT LB(S) POUND,POUNDS CD CD PUMP
AC ACRES LF LINEAR FEET CONDENSATE DRAIN
ADDL ADDITIONAL LIN LINEAR GV GATE VALVE
ADDM ADDENDUM LP LIGHT POLE CENT CENT
CENTRATE
ADDN ADDITION LWL LOW WATER LEVEL MIXER CV CHECK VALVE
ADJ ADJACENT DG DG
AFF ABOVE FINISHED FLOOR MAS MASONRY DIGESTER GAS
LP CV LOW PRESSURE CHECK VALVE
AFG ABOVE FINISHED GRADE MATL MATERIAL
AG ABOVE GROUND MAX MAXIMUM DS DS
AGGR AGGREGATE MECH MECHANICAL DIGESTED SLUDGE DRAFT TUBE MIXER - BALL VALVE
AISC AMERICAN INSTITUTE OF STEEL CONSTRUCTION MEMB MEMBRANE DR DR
ALUM ALUMINUM MFR MANUFACTURER DRAIN PV PLUG VALVE
APP'D APPROVED MH MANHOLE
APPROX APPROXIMATE MO MASONRY OPENING FOD FOD
FOUNDATION DRAIN - BUTTERFLY VALVE
ARCH ARCHITECTURE, ARCHITECTURAL MTL METAL
ASPH ASPHALT MIL MILLIMETER FIELD INSTRUMENT -
GRS GRS
AVG AVERAGE MIN MINIMUM GREASE CV CONTROL VALVE
ASTM AMERICAN SOCIETY FOR TESTING AND MATERIALS MISC MISCELLANEOUS FUNCTION SYMBOLS IDENTIFICATION
AWS AMERICAN WELDING SOCIETY MTG MOUNTING GTS GTS PR PRESSURE REGULATOR
GRIT SLURRY
AWWA AMERICAN WATER WORKS ASSOCIATION
100 EAST MAIN STREET
N NORTH (COORDINATE)
HWR HWR - PRESSURE RELIEF VALVE
BD BOTTOM OF DITCH NA NOT APPLICABLE HOT WATER RETURN CHRISTIANSBURG,
BIT BITUMINOUS NE NORTH EAST WHERE XXX = THE FOLLOWING AND = INSTRUMENTDEVICE : VIRGINIA 24073
B BASE LINE NFPA NATIONAL FIRE PROTECTION ASSOCIATION HWS HWS PI PRESSURE INDICATOR
HOT WATER SUPPLY
BL BUILDING LINE NGVD NATIONAL GEODETIC VERTICAL DATUM AE ANALYSIS ELEMENT
BLDG BUILDING NIC NOT IN CONTRACT LP LP AI ANALYTICAL INSTRUMENT PE PRESSURE ELEMENTSWITCH
BLDGD BUILDING DATUM NO, NUMBER PROPANE AIT ANALYTICAL INDICATING TRANSMITTER
BM BENCHMARK NOM NOMINAL B BLOWER
- UNION
BTWN BETWEEN NTS NOT TO SCALE MSL MSL CV CONTROL VALVE (OPENCLOSE)
MIXED SLUDGE
BOF BOTTOM OF FOOTING NW NORTHWEST ES EMERGENCY SHOWER (WITH FLOW SWITCH)
BOT BOTTOM NWL NORMAL WATER LEVEL FCV FLOW CONTROL VALVE (MODULATING) - MOTOR
NPW NPW
NON-POTABLE WATER FE FLOW ELEMENT
C CHORD LENGTH (CURVE) OC ON CENTER FIT FLOW INDICATING TRANSMITTER - FLAME TRAP
CC CENTER TO CENTER OD OUTSIDE DIAMETER POS POS FQIC FLOW QUANTITY INDICATING CONTROLLER
CF COLUMN FOOTING OF OUTSIDE FACE POLYMER SOLUTION FS FLOW SWITCH
- FLAME CHECK VALVE
CFS CUBIC FEET PER SECOND OPNG OPENING HS HAND SWITCHDISCONNECT
PSG PSG
C&G CURB AND GUTTER OPP OPPOSITE PRIMARY SLUDGE JIC POWER INDICATING CONTROLLERMOTOR STARTER
CI CURB INLET OSHA OCCUPATIONAL SAFETY & HEALTH ACT JS POWER SWITCH, AUX CONTACT ON MOTOR STARTER THRM THERMAL SHUTOFF VALVE
CIP CAST IRON PIPE RAS RAS LE LEVEL ELEMENT
CJ CONTROL JOINT PAVT PAVEMENT RETURN ACTIVATED SLUDGE LIT LEVEL INDICATING TRANSMITTER - FLAME TRAPARRESTOR ASSEMBLY
CCJ CRACK CONTROL JOINT PI POINT OF INTERSECTION LS LEVEL SWITCH (HIGH, HIGH HIGH, LOW, LOW LOW, ALARM)
RCY RCY
CENTERLINE PL PROPERTY LINE RECYCLE M MECHANICALEQUIPMENT
- ARROW INDICATES FLOW DIRECTION
CL CLASS, CENTERLINE PLN PLAN MS MOISTURE SWITCH
CLR CLEAR PNL PANEL RL RL MX MIXER
CMP CORRUGATED METAL PIPE PP UTILITY POLE RAIN LEADER P PUMP - DRIP TRAP 7/7/2026
CMU CONCRETE MASONRY UNIT PROP PROPERTY, PROPOSED PDT PRESSURE DIFFERENTIAL TRANSMITTER
SEP SEP
CO COMPANY,CLEAN OUT PRV PRESSURE RELEASE VALVE SEPTAGE PE PRESSURE ELEMENT - MANUAL DRIP TRAP
COL COLUMN PSF POUNDS PER SQUARE FOOT PI PRESSURE GAUGEINDICATOR
CONC CONCRETE PSI POUNDS PER SQUARE INCH SLG SLG PIT PRESSURE INDICATING TRANSMITTER
CONT CONTINUE, CONTINUOUS, CONTINUATION PVC POLYVINYL CHLORIDE SLUDGE SIC SPEED INDICATING CONTROLLERVARIABLE FREQUENCY DRIVE - ORIFICE PLATE (FLOW METER)
CONTR CONTRACTOR SV SOLENOID VALVE
SMP SMP
COORD COORDINATE R RADIUS SAMPLE TS TEMPERATURE SWITCH F F FILTER
CULV CULVERT RCP REINFORCED CONCRETE PIPE V VALVE
RD ROAD SCM SCM VS VIBRATION SWITCH - SEDIMENT TRAP
DAFT DISSOLVED AIR FLOTATION THICKENER RED REDUCER SCUM WE WEIGHTFORCE ELEMENT
DEG DEGREE REF REFERENCE WIT SCALEWEIGHTFORCE INDICATING TRANSMITTER
DEMO DEMOLISH,DEMOLITION REG INS RIGID INSULATION STM STM - MANOMETER
STORM WATER
DESC DESCRIPTION REINF REINFORCED,REINFORCEMENT
DI DUCTILE IRON REQ'D REQUIRED SU SU VIEW ANNOTATION - REDUCER
DIA, DIAMETER REV REVISION SUMP DISCHARGE
DIP DUCTILE IRON PIPE ROW RIGHT-OF-WAY
SUP SUP - THERMAL GAS FLOW METER
DIST DISTANCE RP RADIUS POINT
SUPERNATANT
DR DRAIN RVS REVERSE
DWG DRAWING RW RIGHT-OF-WAY SW SW DETAIL CALLOUT DETAIL IDENTIFICATION NO. - VENT TOWN OF CHRISTIANSBURG
SEAL WATER SHEET NO. WHERE DETAIL IS SHOWN WASTEWATER TREATMENT
E EAST (COORDINATE) S SOUTH (COORDINATE)
EA EACH SB SOIL BORING VT VT FACILITY
VENT
EF EACH FACE SCH SCHEDULE VIEW TITLE
EL ELEVATION SE SOUTHEAST WAS WAS VIEW TITLE 1 DIGESTER BOILER AND HEAT
ELEC ELECTRIC,ELECTRICAL SEC SECTION WASTE ACTIVATED SLUDGE 1" = 10' 0 10' 20'
EMBED EMBEDMENT SHT SHEET EXCHANGER BUILDING
EOP EDGE OF PAVEMENT SIM SIMILAR WST WST
WASTE
EQUIP EQUIPMENT SPRT SUPPORT
EW EACH WAY SQ SQUARE
WW WW
EWL EMERGENCY WATER LEVEL SS SANITARY SEWER, STAINLESS STEEL WASTEWATER (PLANT PIPING)
EXGR EXISTING GRADE SSFM SANITARY SEWER FORCE MAIN
EXH EXHAUST STA STATION \\\\\\\
PIPING (TO BE DEMOLISHED)
EXIST EXISTING STD STANDARD
EXP EXPANSION STL STEEL
STR STRUCTURAL, STRUCTURE
FAC FACILITY SY SQUARE YARDS
FCS FOAM CONTROL SYSTEM SW SOUTHWEST, SIDEWALK
FDN FOUNDATION
FF FACE TO FACE TDF TRENCH DRAIN FOOTING, TURNED DOWN FOOTING
FFE FINISHED FLOOR ELEVATION T TANGENT DISTANCE (CURVE),TELEPHONE LINE
FH FIRE HYDRANT T & B TOP & BOTTOM
FLEX FLEXIBLE TOW TOP OF WALL
FLG FLANGED TEMP TEMPORARY
FLR FLOOR TEL TOP OF CASTING ELEVATION
FOC FACE OF COLUMN THK THICK, THICKNESS
FP FIRE PROTECTION TC TOP OF CURB ELEVATION
FRP FIBERGLASS REINFORCED PLASTIC TOS TOP OF SLAB ELEVATION
FT FOOT TP TOP OF PAVEMENT ELEVATION
FTG FOOTING TS THICKENED SLAB
TYP TYPICAL
GAL GALLON TD TOP OF DITCH
GALV GALVANIZED
GC GENERAL CONTRACTOR UE UNDERGROUND ELECTRICAL
GI GRATE INLET UNO UNLESS NOTED OTHERWISE
GPM GALLONS PER MINUTE USGS UNITED STATES GEOLOGICAL SOCIETY
GR GRADE (SLOPE) UT UNDERGROUND TELEPHONE
- BID ISSUE JHMJHM 070726
H HORIZONTAL V VERTICALLY
HHE HEATERHEAT EXCHANGER VERT VERTICAL
HD HEAVY DUTY VFD VARIABLE FREQUENCY DRIVE
GENERAL LEGENDS
HEX HEXAGON VLV VALVE
HGT HEIGHT VPC VERTICAL POINT OF CURVATURE
AND ABBREVIATIONS
HORIZ HORIZONTAL VPI VERTICAL POINT OF INTERSECTION
HWL HIGH WATER LEVEL VPT VERTICAL POINT OF TANGENT
HYD HYDRANT
W WEST, WATERLINE
ID INSIDE DIAMETER WW WASTEWATER
IE INVERT ELEVATION WF WALL FOOTING
IN INCHES W WITH JHM
INC INCORPORATED WO WITHOUT
INCL INCLUDE WL WATER LEVEL
INS INSULATION WS WATER SURFACE AS SHOWN
INV INVERT WT WEIGHT
WWF WELDED WIRE FABRIC
JB JUNCTION BOX YD YARD
JT JOINT G0-003

B
PRIMARY SLUDGE AND WAS TRANSFER PUMPS GBT FEED PUMPS POLYMER SYSTEMS GRAVITY BELT THICKENER CENTRIFUGE
ROTARY DRUM THICKENER (RDT)
TWAS (GBT) TRANSFER PUMPS
LANDFILL DISPOSAL
SAW
ROTARY DRUM
THICKENER EXISTING GRAVITY BELT THICKENER
RDT-1 GBT-1
PRIMARY SLUDGE
PUMPING STATION
TWAS
FILTRATE
SST-1B SST-1A
SST-2B
SST-2A
DYNAMIC MIXER
CENTRIFUGE 1
(RAS)
RETURN ACTIVATED
SLUDGE PUMP STATION
BIOSOLIDS
STORAGE TANKS
EXISTING EXISTING
CENTRATE STORAGE SST-3 SST-4
(EXISTING SST-5)
SLUDGE MIXING\TRANSFER EXISTING SLUDGE MIXING\TRANSFER
PUMP STATION NO. 1
PUMP STATION NO.2
DEWATERED CAKE
SAW
FROM SC-1
FROM SC-2
MORF 4321-CP
POLYMER
MORF
SAWT
A1-TSS RETSEGID
OT
TWAS
THICKENED SLUDGE
TO PLANT DRAIN
SAW
DS
EXISTING
SBT-2
LSP
SAW
SD
RETSEGID
MORF
SAW
EXISTING POLYMER
RAS TO AERATION BASIN
ETARTLIF
B
EKAC
DERETAWED
P-813
P-814
P-814A
PA
REMYLOP
CENTRATE
WPN
ETARTNEC
NPW
WPN
NPW
WPN
SLUDGE STORAGE TANKS
NPW BOOSTER PUMPS GBT POLYMER FEED
2 - CIRCULAR STORAGE TANKS, SST-3, SST-4
52' DIA. x 10' S.W.D.
1 - POLYMER ACTIVATION SYSTEM FOR GBT
160,000 GAL. EACH
1200 GPH
SST-1A, SST-1B, SST-SA, SST-2B
WAS AND TWAS STORAGE
32' x 32' x 10' S.W.D.
77,000 GAL.
SLUDGE BLENDING TANK
SBT-2 (BLUE TANK)
12' DIA x 16' TALL
20,000 GAL.
TO DIGESTER
NPW
CENTRATE
EGDULS
GNITSIXE
SPMUP
DEEF
CENTRATE STORAGE TANK
1 - CIRCULAR STORAGE TANK, SST-5
56' DIA. x 10' S.W.D.
180,000 GAL.
TWAS
WAS
MH-3
CENTRATE RETURN
CENTRIFUGE 2
FLOW CONTROL
VALVE VAULT
908-P
RETSOOB
WPN
DIKS
PMUP
DENEKCIHT
GNITSIXE
REFSNART
EGDULS
SPMUP
LAND APPLICATION
106-P
206-P
.XE
306-P
.XE
808-P
118-P 218-P
POLYMER 2 -
POLYMER 1-RDT
CENTRIFUGE
WPN WPN
IT IS A VIOLATION OF LAW FOR ANY PERSON, UNLESS THEY ARE
ACTING UNDER THE DIRECTION OF A LICENSED PROFESSIONAL
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR TO ALTER AN ITEM IN ANY WAY. IF AN ITEM BEARING THE
STAMP OF A LICENSED PROFESSIONAL IS ALTERED, THE ALTERING
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR SHALL STAMP THE DOCUMENT AND INCLUDE THE
NOTATION "ALTERED BY" FOLLOWED BY THEIR SIGNATURE, THE
DATE OF SUCH ALTERATION, AND A SPECIFIC DESCRIPTION
OF THE ALTERATION.
TO SST-1A
No. Submittal Revision Apv By Date
Designed By: Drawn By: Checked By:
Issue Date: Project No.: Scale:
432026 87506
Drawing No.:
GWD.605780-FP
101-0G\STEEHS_10\SGNIWARD\NGISED_90\SELIF
TCEJORP\RELIOB
RETSEGID
GRUBSNAITSIRHC
605780\AHC\SCODCCA\CD\2015\SRESU\:C
:eliF
23501
:yBdevaStsaL
relyT
,gnideerB
:resU
tnerruC
MA
64:82:01
6202227
:dettolP
MP
84:22:2
620297
:devaS
Drawing Copyright (C) 2025
1341 Research Center Drive, Suite 2100
Blacksburg, VA 24060-5548
540.552.5548 . www.chasolutions.com
100 EAST MAIN STREET
CHRISTIANSBURG,
VIRGINIA 24073
7/7/2026
GENERAL SHEET NOTES
1. INFORMATION PROVIDED ON THIS DRAWING REFERENCES CHA, 2020,
BIOSOLIDS MANAGEMENT FACILITIES. THERE IS NO NEW WORK ON THESE
FACILITIES AS PART OF THIS PROJECT.
TOWN OF CHRISTIANSBURG
WASTEWATER TREATMENT
FACILITY
DIGESTER BOILER AND HEAT
EXCHANGER BUILDING
- BID ISSUE JHMJHM 070726
PROCESS FLOW
DIAGRAM (SOLIDS)
JHM
AS SHOWN
G0-101

ANAEROBIC DIGESTERS
EA 40 FT DIA, 33'6" DEEP
1,125,000 BTUHR
1 - PRIMARY DIGESTER NPW 80 GPM PER PASS
295,000 GAL
SLUDGE 350 GPM PER PASS
CONSUMES 2344 CFHR DIGESTER GAS OR 563 CFHR LP
1 - SECONDARY DIGESTER
264,000 GAL
PRIMARY DIGESTER
SLUDGE BLENDING
TANK 2 (SBT-2)
FOR DEWATERING SECONDARY DIGESTER
SLUDGE STORAGE
TANKS 3,4 (SST-3,4)
FOR LAND APPLICATION
EGDULS
RETSEGID
LP SUPPLY
TWAS FROM TWAS XFER PUMPS
P-811 AND P-812
IN SOLIDS DEWATERING BLDG
DIGESTER GAS
TWAS FROM TWAS MIXED SLUDGE
PUMP P-601 PSH B
AND SST-1A
PRIMARY SLUDGE
FROM P-602
SAG
RETSEGID
DIGESTED SLUDGE RECIRCTRANSFER
2 - CENTRIFUGAL PUMPS @ 10 HP
P-701 ; P-702
DUAL STAGE DIGESTION 1 DUTY ; 1 STDBY
(HEATED AND MIXED PRIMARY, MIXED OR SETTLING ONLY SECONDARY)
SINGLE STAGE DIGESTION
BOTH PRIMARY AND SECONDARY DIGESTERS HEATED
2 DUTY
GAS HOLDING CAPACITY
9000 CF DIGESTER GAS AT 11.25" WC
WASTE GAS
BURNER
M-703
V-854
V-853 N.C.
V-852
BOILER
NPW
P-701
V-856
DUAL PASS
HEAT EXCHANGER
P-702
V-855
BOILERHEAT
EXCHANGE
BUILDING
SAG
RETSEGID
BOILERHEAT EXCHANGER (DUAL PASS)
SOLIDS PROCESSING CAPACITY
TWO (2) SINGLE STAGE DIGESTERS
PRIMARY SLUDGE 13,500 GPD (@4.5 TS)
5,300 LBDAY
TWAS 9,200 GPD (@4.5 TS)
3,500 LBDAY
SRT 25 DAYS
IT IS A VIOLATION OF LAW FOR ANY PERSON, UNLESS THEY ARE
ACTING UNDER THE DIRECTION OF A LICENSED PROFESSIONAL
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR TO ALTER AN ITEM IN ANY WAY. IF AN ITEM BEARING THE
STAMP OF A LICENSED PROFESSIONAL IS ALTERED, THE ALTERING
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR SHALL STAMP THE DOCUMENT AND INCLUDE THE
NOTATION "ALTERED BY" FOLLOWED BY THEIR SIGNATURE, THE
DATE OF SUCH ALTERATION, AND A SPECIFIC DESCRIPTION
OF THE ALTERATION.
N.C.
No. Submittal Revision Apv By Date
TOWN OF CHRISTIANSBURG WWTF - PROCESS FLOW DIAGRAM
DIGESTED SOLIDS
Designed By: Drawn By: Checked By:
Issue Date: Project No.: Scale:
432026 87506
Drawing No.:
GWD.605780-FP
101-0G\STEEHS_10\SGNIWARD\NGISED_90\SELIF
TCEJORP\RELIOB
RETSEGID
GRUBSNAITSIRHC
605780\AHC\SCODCCA\CD\2015\SRESU\:C
:eliF
23501
:yBdevaStsaL
relyT
,gnideerB
:resU
tnerruC
MA
50:92:01
6202227
:dettolP
MP
84:22:2
620297
:devaS
Drawing Copyright (C) 2025
1341 Research Center Drive, Suite 2100
Blacksburg, VA 24060-5548
540.552.5548 . www.chasolutions.com
100 EAST MAIN STREET
CHRISTIANSBURG,
VIRGINIA 24073
7/7/2026
TOWN OF CHRISTIANSBURG
WASTEWATER TREATMENT
FACILITY
DIGESTER BOILER AND HEAT
EXCHANGER BUILDING
- BID ISSUE JHMJHM 070726
PROCESS FLOW
DIAGRAM (SOLIDS
CONT.)
JHM
AS SHOWN
G0-102

V-755 V-758 V-757
YRAMIRP
YRADNOCES
FIT
ETSAW
13
FIT
14
FE
14
V-756 LP
V-753
N.C.
\\\\\\\\\\\\\
\
\
\
FE
15 \
6" SS DG
\
SECONDARY
DIGESTER GAS \
LP
FE
13
3" LIQUEFIED PETROLEUM
PE
207
PE
208
GD
"4
6" DIGESTER GAS
H.W.L. 1847' H.W.L 1847' MAX MAX
L.W.L. 1841' L.W.L. 1841'
MIN MIN HEAT CORBEL
EXCHANGER ELEV.
M-701
1838.50
CORBEL ELEV. V-764
1830.5 LP PILOT
TO M-701
V-765
3"-DG-SS COMBINED
SEDIMENT
TRAP
3" SS DG COMBINED DIGESTER GAS
6"-DG-SS PRIMARY GAS
EXIST
MANOMETERS
TWO-STAGE
PR
TNEV
FLAME
TRAP
V-751
V-752
SEDIMENT
TRAP
4" DIGESTER GAS
VENT
AUXILIARY FUEL
SUPPLY
SAG
RETSEGID
SAG
RETSEGID
PRIMARY DIGESTER SECONDARY DIGESTER
V-754
V-763
SAG
RETSEGID
"6
SAG
RETSEGID
YRAMIRP
SAG
RETSEGID
YRADNOCES
SAG
RETSEGID
12"-DG-SS COMBINED GAS
12"-DG-SS-HEATEX GAS
12"-DG-SS WASTE GAS
TAEH
REGNAHCXE
SAG
ETSAW
SS-GD-"21
6"-DG-SS WASTE GAS
\\
\ \
\ \\\
\ \ \ \
\\
\ \ \
\ \ \
\ \ \
\ \ \
\ \ \
\ \ \
\ \ \
\ \ \
\ \ \
\ \ \
\ \ \ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
\ \ \
\ \ \
\ \ \
\ \ \
\ \ \
\
\
\\\\\ \ \
\ \ \
\ \
\
\ \
\
\\\\\\\\\\\\\\\\\\\\\\\ \
\
\
\
\\\\\\\\\\\\\\\\\\\\\\\\\\\\
\
IMH
ADACS
)PCL(
LENAP
LORTNOC
LACOL
TNEMURTSNI
DLEIF
DNA
TNEMPIUQE
TNEV
EXISTING ACP-5
(EXISTING DIGESTER BUILDING ELECTRICAL ROOM)
PLC-5
\
\
\
\
\\\\\\\\\\\\\\
\
\
EXIST. HEAT
EXCHANGER
CONTROL PANEL
TT TT
701 703
TT TT
702 704
PIT PIT FIT
\
208 207 15
\
\
\
\
\
\
\
\
IT IS A VIOLATION OF LAW FOR ANY PERSON, UNLESS THEY ARE
\ ACTING UNDER THE DIRECTION OF A LICENSED PROFESSIONAL
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR TO ALTER AN ITEM IN ANY WAY. IF AN ITEM BEARING THE
\ STAMP OF A LICENSED PROFESSIONAL IS ALTERED, THE ALTERING
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR SHALL STAMP THE DOCUMENT AND INCLUDE THE
\ NOTATION "ALTERED BY" FOLLOWED BY THEIR SIGNATURE, THE
DATE OF SUCH ALTERATION, AND A SPECIFIC DESCRIPTION
OF THE ALTERATION.
\
\\\\\\\\
\
\
\
WASTE GAS BURNER AND
G0-205
\ NEW HEXBOILER
\
\
1
No. Submittal Revision Apv By Date
\\\
\
Designed By: Drawn By: Checked By:
Issue Date: Project No.: Scale:
432026 87506
Drawing No.:
GWD.605780-DI&P
002-0G\STEEHS_10\SGNIWARD\NGISED_90\SELIF
TCEJORP\RELIOB
RETSEGID
GRUBSNAITSIRHC
605780\AHC\SCODCCA\CD\2015\SRESU\:C
:eliF
23501
:yBdevaStsaL
relyT
,gnideerB
:resU
tnerruC
MA
04:92:01
6202227
:dettolP
MP
21:52:2
620297
:devaS
Drawing Copyright (C) 2025
GENERAL SHEET NOTES
1. "COMBINED" DIGESTER GAS REFERS TO COMBINED PRIMARY AND
SECONDARY DIGESTER GAS.
2. DRAWING DOES NOT SHOW DEMOLITION OF STAINLESS STEEL VENT 1341 Research Center Drive, Suite 2100
Blacksburg, VA 24060-5548 LINES FOR PRVS AND PRESSURE SWITCHES ON THE EXISTING BOILER.
540.552.5548 . www.chasolutions.com
CONTRACTOR SHALL TRACE VENT LINES FROM BOILER AND DEMO AND
CAP AT MAIN.
3. HATCHED PIPING, EQUIPMENT, AND PANELS INDICATE DEMOLITION.
CODED NOTES
1. DEMO PLATE ORIFICE FLOW METER AND APPURTENANCES, CHECK
VALVE, AND VALVE. BLIND FLANGE WITH GASKET REMAINING AND
LEAK TEST.
100 EAST MAIN STREET
CHRISTIANSBURG,
VIRGINIA 24073
7/7/2026
TOWN OF CHRISTIANSBURG
WASTEWATER TREATMENT
FACILITY
DIGESTER BOILER AND HEAT
EXCHANGER BUILDING
- BID ISSUE JHMJHM 070726
PID - DIGESTER GAS
- DEMOLITION
JHM
AS SHOWN
G0-201

IMH
ADACS
)PCL(
LENAP
LORTNOC
LACOL
TNEMURTSNI
DLEIF
DNA
TNEMPIUQE
EXISTING ACP-5
(EXISTING DIGESTER BUILDING ELECTRICAL ROOM)
PLC-5
EXIST. HEAT
EXCHANGER
CONTROL PANEL
TT TT
P-701 VFD P-701 VFD
701 703
TT TT
702 704
\
\
\
\
\
\
\
\
\
\
\
H.W.L. 1847' \ H.W.L 1847'
MAX MAX
\ \ \ EXPANSION
\ TANK \ \ \\\\\
\ \
\ \
\\\\\\\\\\\\\
AIRTROL FITTING
\
SECONDARY DIGESTER OUT
V-760
SECONDARY DIGESTER IN V-762
L.W.L. 1841' L.W.L. 1841' MIN V-703 MIN CORBEL V-734
ELEV. PRIMARY DIGESTER OUT
1838.50 V-704 SUP
PRIMARY DIGESTER IN V-702
V-733
CORBEL ELEV. 1830.5
SUP
M704A & M705A & V-735
M704B V-7XX V-7XX M705B
V-732
M M
V-724 V-722 V-723 V-725
SUP
V-7XX V-701
2 DRAFT 2 DRAFT
TUBE MIXERS V-705 V-739 V-726 TUBE
(ON VFD) M MIXERS M
(ON VFD)
V-706 V-707 V-709 V-712 V-715 V-728 V-727
V-720 V-713 V-721 V-717 V-730
V-719
V-718
PI PI V-729
18 19
V-708
TO SEAL WATER PUMPS
AND SAMPLE SINKS
PRIMARY DIGESTER SECONDARY DIGESTER
3" NON POTABLE WATER FROM NPW SYSTEM
FROM PSHB
TO SBT-2
DEWATERING BLDG
TO SST3, 4, 5 &
LAND APPLICATION
30" MAIN INFLUENT 30" MAIN INFLUENT
FLOW FLOW
RETAW
ELBATOP
NON
\
\
\
\
\\\\\\\\\
\
\
\
\ \ \ \
\ \ \ \
\ \ \ \
\ \ \ \
\ \ \ \
\ \ \ \
\ \ \ \
\ \ \ \
\ \ \ \
\ \ \ \ IT IS A VIOLATION OF LAW FOR ANY PERSON, UNLESS THEY ARE
ACTING UNDER THE DIRECTION OF A LICENSED PROFESSIONAL
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
\ \ \ \ SURVEYOR TO ALTER AN ITEM IN ANY WAY. IF AN ITEM BEARING THE
STAMP OF A LICENSED PROFESSIONAL IS ALTERED, THE ALTERING
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
\ \ \ \ SURVEYOR SHALL STAMP THE DOCUMENT AND INCLUDE THE
NOTATION "ALTERED BY" FOLLOWED BY THEIR SIGNATURE, THE
DATE OF SUCH ALTERATION, AND A SPECIFIC DESCRIPTION \ \ \ \ OF THE ALTERATION.
TT TT TT TT
\701 \ 702 \703 \704
\ \ \ \ \
\ \\\\\\\\
\ \ \ \\\ \
\
\\\\\
\\
\
\\\\\\\ 2 \
\\
\\\\\\\\\ \ \
\ \\\\\\\\\
\ \\ \
\ \ \ \\ \ \
3 \ \
\\\\\
\ \ \
\ \ \
\ \\\\\\\ \
\ \ \ \ \
\
\ \ \ \
\
\ \ \
\
\ \ \
\
\ \ \
\ \
\
\
\
\ No. Submittal Revision Apv By Date
V-710 V-711 V-716
\
\
\
\
\
\
\
\
\
\
\
\
\
V-856 \\\\\\\\\\\\ \
6" MIXED SLUDGE-DIP
V-855
1
V-853 V-852
6" DIGESTER SLUDGE-DIP Designed By: Drawn By: Checked By:
Issue Date: Project No.: Scale:
V-851
432026 87506
Drawing No.:
GWD.605780-DI&P
002-0G\STEEHS_10\SGNIWARD\NGISED_90\SELIF
TCEJORP\RELIOB
RETSEGID
GRUBSNAITSIRHC
605780\AHC\SCODCCA\CD\2015\SRESU\:C
:eliF
23501
:yBdevaStsaL
relyT
,gnideerB
:resU
tnerruC
MA
75:92:01
6202227
:dettolP
MP
21:52:2
620297
:devaS
Drawing Copyright (C) 2025
CODED NOTES
1. DEMOLISH NPW LINE FROM EXISTING HEXBOILER TO BELOW FLOOR
SLAB, INSERT ISOLATION BALL VALVE AND CAP LINE.
2. DEMOLISH EXISTING HEXBOILER, INLET AND OUTLET SLUDGE PLUG 1341 Research Center Drive, Suite 2100
Blacksburg, VA 24060-5548
VALVES AND PIPING THROUGH THE FLOOR SLAB. REFER TO D
540.552.5548 . www.chasolutions.com
DRAWINGS FOR MORE DETAIL. NOTE THE INLET AND OUTLET
ORIENTATION OF SLUDGE LINES ON THE EXISTING HEXBOILER UNIT IS
DIFFERENT THAN THE NEW HEXBOILER.
3. HATCHED PIPING, EQUIPMENT, AND PANELS INDICATE DEMOLITION.
100 EAST MAIN STREET
CHRISTIANSBURG,
VIRGINIA 24073
7/7/2026
TOWN OF CHRISTIANSBURG
WASTEWATER TREATMENT
FACILITY
DIGESTER BOILER AND HEAT
EXCHANGER BUILDING
- BID ISSUE JHMJHM 070726
PID - DIGESTED
SLUDGE -
DEMOLITION
JHM
AS SHOWN
G0-202

V-755 V-758
YRAMIRP
YRADNOCES
FIT
ETSAW
13
FIT
14
FE
14
V-756 LP
V-753
N.C.
6" SS DG
SECONDARY
DIGESTER GAS
LP
FE
13
PE
207
PE
208
GD
"4
6" DIGESTER GAS
H.W.L. 1847' H.W.L 1847'
MAX MAX
L.W.L. 1841' L.W.L. 1841'
MIN MIN CORBEL
ELEV.
1838.50
CORBEL ELEV. V-764
1830.5
3"-DG-SS COMBINED
SEDIMENT
TRAP
3" SS DG COMBINED DIGESTER GAS
6"-DG-SS PRIMARY GAS
EXIST
MANOMETERS
TNEV
V-751
V-752
SEDIMENT
TRAP
PRIMARY DIGESTER SECONDARY DIGESTER
V-754
4" DIGESTER GAS
V-763
VENT
SAG
RETSEGID
"6
SAG
RETSEGID
YRAMIRP
SAG
RETSEGID
YRADNOCES
SAG
RETSEGID
12"-DG-SS COMBINED GAS
12"-DG-SS WASTE GAS
SAG
ETSAW
SS-GD-"21
6"-DG-SS WASTE GAS
IMH
ADACS
)PCL(
LENAP
LORTNOC
LACOL
TNEMURTSNI
DLEIF
DNA
TNEMPIUQE
TNEV
EXISTING ACP-5
(EXISTING DIGESTER BUILDING ELECTRICAL ROOM)
PLC-5
PIT PIT
208 207
IT IS A VIOLATION OF LAW FOR ANY PERSON, UNLESS THEY ARE
ACTING UNDER THE DIRECTION OF A LICENSED PROFESSIONAL
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR TO ALTER AN ITEM IN ANY WAY. IF AN ITEM BEARING THE
STAMP OF A LICENSED PROFESSIONAL IS ALTERED, THE ALTERING
ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT OR LAND
SURVEYOR SHALL STAMP THE DOCUMENT AND INCLUDE THE
NOTATION "ALTERED BY" FOLLOWED BY THEIR SIGNATURE, THE
DATE OF SUCH ALTERATION, AND A SPECIFIC DESCRIPTION
OF THE ALTERATION.
WASTE GAS BURNER AND
G0-205
NEW HEXBOILER
No. Submittal Revision Apv By Date
NEW BLIND FLANGE
Designed By: Drawn By: Checked By:
Issue Date: Project No.: Scale:
432026 87506
Drawing No.:
GWD.605780-DI&P
002-0G\STEEHS_10\SGNIWARD\NGISED_90\SELIF
TCEJORP\RELIOB
RETSEGID
GRUBSNAITSIRHC
605780\AHC\SCODCCA\CD\2015\SRESU\:C
:eliF
23501
:yBdevaStsaL
relyT
,gnideerB
:resU
tnerruC
MA
11:03:01
6202227
:dettolP
MP
21:52:2
620297
:devaS
Drawing Copyright (C) 2025
1341 Research Center Drive, Suite 2100
Blacksburg, VA 24060-5548
540.552.5548 . www.chasolutions.com
100 EAST MAIN STREET
CHRISTIANSBURG,
VIRGINIA 24073
7/7/2026
TOWN OF CHRISTIANSBURG
WASTEWATER TREATMENT
FACILITY
DIGESTER BOILER AND HEAT
EXCHANGER BUILDING
- BID ISSUE JHMJHM 070726
PID - DIGESTER GAS
- PROPOSED
JHM
AS SHOWN
G0-203