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a. Red – Addition

b. Blue – Notes/Direction

c. Green – Deletion

2. The Attachment 1 Operations Roof drawings replace Sheets S-61-102, A-61-105, A-61-501, H-

61-102 and H-61-103 in their entirety.

3. Delete Schedule 40 05 05.20-S01 – Pipeline Schedule and replace with Attachment 2 in its entirety.

4. The Potable Water (PW) main has been revised. See Attachment 3. Replace Sheets D-03-401, D-

03-402, D-03-403, D-03-404, C-03-101, C-03-102, C-03-103, C-03-104, C-03-105, C-08-504, C-

08-505 in their entirety.

5. See Attachment 4 for Section 40 05 61.23 - Resilient Seated Gate Valves to be added to the

Contract Documents.

6. See Attachment 5 which replaces the following Electrical drawings in their entirety: E-01-101, E-01-402, E-01-601, E-11-101, E-61-101, E-61-601, E-61-605, E-61-701, E-71-101, and E-95-

604.

7. See Attachment 6 which replaces the following Structural drawings in their entirety: S-11-102, S-

61-103, S-95-506.

8. Add the following after Paragraph 2.1.A in Section 40 05 17 (Copper Tubing and Accessories)

9. In Section 01 91 00, 1.8, replace Operational Acceptance Testing with the following in its entirety:

1.8 RELIABILITY DEMONSTRATION TESTING

A. Purpose: To demonstrate prior to Final Completion of the Work that the systems and all related equipment, accessories, signals, and controls operate reliably and as specified as a complete, comprehensive, and coordinated system.

B. Complete the Startup of all necessary systems prior to any Reliability Demonstration

Testing. Complete successful Reliability Demonstration Test(s) on a complete system prior to incremental or overall Substantial Completion. If phasing and associated incremental Substantial Completions are implemented, each phase of construction shall require its own tests.

C. Reliability Demonstration Testing shall be performed using process materials (if applicable).

D. Maintain operational logs and all alarm printouts throughout the reliability demonstration period and make them available to the Owner/Engineer (if applicable).

E. The Reliability Demonstration Test may be monitored by the Owner/Engineer.

F. No changes or modifications shall be made to the SCADA System Software, PLC equipment or instrument settings, or other system adjustments during the Reliability

Demonstration Test without written permission of the Owner/Engineer.

G. The Reliability Demonstration Test shall be interrupted and the test restarted should a failure occur. The test duration resets to zero and is restarted after corrections have been made. A test failure is defined as any one of the following:

1. System operation outside of specified operating boundary conditions for a time duration to be determined by the Owner/Engineer.

2. A failure of a component or device that requires other than a normal maintenance effort to correct. Normal maintenance is defined as the level of support normally available from the Owner’s maintenance staff.

3. Repeated failure of the same component or device, regardless of cause or severity.

4. A failure requiring off-site parts or support to repair.

5. A failure of a component or device that cannot be repaired within 4 hours.

Repair times, for repairs requiring less than 4 hours, shall be added onto the end of the test duration.

H. Document actions taken and procedures developed that are not covered in the operations manuals, and provide as an appendix to the operating manuals.

I. Repeat Reliability Demonstration Testing as required by Engineer when modifications are made to Work after successful demonstration testing is complete.

J. Prior to Final Completion, operate and maintain each system for not less than 30 days continuously, based on 7-day/week, 24-hour/day operation, and at specified capacity to demonstrate that the system performs as specified herein. The system may include components furnished by the Owner/Engineer (if applicable) as well as components furnished by the Contractor.

10. Prospective Bidders are advised that Section 01 11 13 Paragraph 1.1.A.1 is revised to include:

l. Installation of 12’’ potable water main and abandonment or demolition of portions of the 6’’ potable water main.

11. Prospective Bidders are advised that Section 01 11 13 Paragraph 1.14.D. is revised to include:

10. 12’’ Potable Water Main

a. The installation and connection of services to the new 12’’ potable water main are to be started after July 31, 2027. Potable water outages are to only occur for one system or building at a time and for only a maximum duration of 4 hours. Potable water outages to buildings with restroom facilities are to be planned between the hours of 6 PM and 6 AM.

12. Revise the corresponding portion of the Table under Section 40 05 19 (Ductile Iron Pipe)

Paragraph 2.2.A as follows:

Push-on Joints ANSI/AWWA C111/A21.11

Restrained Push-on Joints, locking wedge type, 4-

18 inch, working pressure rating of at least 250 psi.

EBAA Iron "Megalug" Series 1700; U.S. Pipe

“TR Flex Gripper Ring”; Star Pipe Products

“StarGrip 3100P”; or American “Field Flex

Ring”, without exception.

13. See Attachment 7 for Section 40 05 31.12 – Polyvinyl Chloride (PVC) Pressure Pipe to be added to the Contract Documents.

14. Delete FPSP-HW Fire Protection and Signaling Panel One-Line Diagram on Drawing E-11-602 in its entirety and replace with the One-Line Diagram in Attachment 8.

QUESTIONS AND ANSWERS:

Q1. In reference to Drawing E-01-003 Note 1, this note says to reuse the existing primary cables and conduits and re-terminate. It also says it is required to provide new cables and conduits as required.

How are we supposed to know if the cables and conduits will need to be replaced at this time. We suggest the Owner to include an allowance for these items so as to not include in our estimate since it’s unknown at this time.

A1. The expectation is that the existing conductor and stub-ups are adequate for the connection to the new switches. However, if modifications are required to accommodate the new primary fuse switch driven by layout or design of the switch itself, that work shall be included in the bid.

Q2. In reference to Drawing E-22-603, please provide drawings showing all new devices being fed from

PLC-3-1 & PLC-3. Headworks screen CPs are shown but not the rest.

A2. See Drawing E-11-101.

Q3. In reference to Drawing E-25-601 Notes 1 – 5, Note 1 says to re-feed all equipment. Please re-issue drawing E-25-101 showing all equipment on the risers. If this is not possible, please provide maximum distance for each item.

A3. See the following for the approximate locations of the equipment to be re-fed. Awarded Contractor shall field-locate all locations of existing equipment to be re-fed, in accordance with Keynote 1, Drawing E-25-601.

Q4. In reference to Drawing E-25-602 Notes 1 & 2, please provide a drawing showing the location of all the equipment shown on the riser to be refed. If this is not possible, please provide a maximum distance for each item shown on the risers. Note 1 says to remove the existing wiring, will the conduits stay?

A4. See Drawing E-01-401.

Q5. In reference to Drawing E-61-105 Note 1, this note talks about the relocation of Pumps #1 & 2

VFDs, please provide a drawing showing the location of the pumps assuming we would need to relocate the load side of the VFDs to the pumps.

A5. The load side of the VFD is to remain (Drawing E-61-601) and spliced at the junction box (Keynote

4, Drawing E-61-105).

Q6. Specification 46 21 53 Centerflow Perforated Plate Screens 2.2.D indicates that the estimated downstream water level during the peak flow of 35.4MGD is 44.0 inches, while the hydraulic profile shown on Plan Sheet G-00-605 shows a downstream water level during the peak flow of

35.4MGD being 44.4inches or 36inches depending on the channel. Which value should be used as the basis of screen design?

A6. Peak Hour Flow No. 2 on Drawing G-00-605 is the controlling basis for screen design. Revise the corresponding portion of the Table under Section 46 21 53 Paragraph 2.2.D, as follows:

Estimated downstream water depth at 35.4 mgd 44.0 44.4± in

Q7. Specification sections 46 21 53-2.6.D outlines a NEMA 7 local control station with (4) pilot devices and 46 21 73-2.6.C outlines a NEMA 7 local control station with (3) pilot devices and terminal blocks for field wiring. Please note, this differs greatly from the plans as drawing I-11-601 shows the local control stations for the screens with a OIT and drawing I-95-701 shows the local control stations with OITs, Ethernet switches, and Fiber connections. Please note, NEMA 7 control stations are explosion proof and cannot have OITs mounted on them. Can you please confirm that the local control stations will include the devices that are outlined in section 46 21 53 and 46 21 73 and will not include the OITs, Ethernet switches, and fiber connections that are shown on the drawings.

A7. To be addressed in a forthcoming addendum.

Q8. On sheet S-11-102 where the side mount guardrail and self-closing swing gate is shown, it is unclear what is supposed to be done at this location. This area is not shown on the building sections. Are we only providing new guardrails and swing gate at an existing platform? Please clarify the intent and provide an elevation or section cut.

A8. See Clarification 7 and Drawing S-11-102 in Attachment 6.

Q9. Is there a wage determination number to use on this project?

A9. See Addendum III, A47.

Q10. For Section 00 21 13, Article 3.01 Item D. Subcontractor and Supplier qualification information;

Can you please advise what specifically is being requested of the Subs/Suppliers. Do they need to provide a full qualification package to include financials, contractor’s license, previous experience…etc. or just a list of previous experience?

A10. Insert the following as sub-paragraph 1 under Section 00 21 13 Paragraph 3.01.D.

Subcontractors and suppliers are to provide written qualification information, such as financial data, previous experience, and present commitments.

Q11. Section 43 23 13.14 (Horizontal End Suction Centrifugal Pumps): 2.2.A indicates the operating head range for full speed continuous operation to be 12 to 33 ft. for all three (3) pumps. This head range is outside of the primary and secondary design point head conditions (50 and 34.1 feet respectively). Please clarify if the 12 to 33 ft. head range is meant to be for reduced speed operation.

A11. To be addressed in a forthcoming addendum.

Q12. I’m trying to get an equal status for Edwards to participate as a supplier of the Fire Alarm System equal. Our contact has been asked to bid and feels he cannot, do to Edwards not being listed.

A12. Alternative manufacturers may be approved pending shop drawing review.

Q13. Please clarify RPT containment / casing pipe size and schedule. Civil drawings call for 4” Sch. 80

PVC, while the Mechanical drawings indicate 3” Sch. 40 within the Chemical Facility.

A13. No conflict is anticipated. See Detail E Drawing M-95-503 and Detail A Drawing M-95-505 for transition details.

Q14. In response to Addendum #3, Q&A #59, please provide the GPM required to handle the bypass pumping for the drain valves, and where the suction and discharge points would be from/to.

Provide a complete drawing for this required bypass pumping system so we can figure on the distances required.

A14. See Drawing G-00-604 “Flow Rates” schedule. Contractor is responsible for the design and configuration of the bypass system, subject to Owner and Engineer approval in accordance with

Section 01 11 13 Paragraphs 1.13.C and 1.14.C.

Q15. Spec 40 05 19 page 6 - Flanged Coupling Adapters are specified as Romac FCA501's with anchor pins. Drilling holes in pipe walls for anchor pins will destroy he pipes integrity. Will the owner accept EBBA Megaflanges, Model #1200 as an equal for the required restraint?

A15. EBBA Megaflanges, Model #1200 may be considered an approved equal, pending shop drawing review.

Q16. Spec 40 05 19 page 6 - Dismantling Joints are currently specified as Viking Johnson but this is a

BABA project and Viking Johnson joints are made either in the U.K. or in China. Would the owner accept JCM Dismantling Joint Model #309 as an equal?

A16. Romac “DJ400” or Dresser “Style 131 Dismantling Joint” are two named alternatives. Alternative manufacturers may be approved pending shop drawing review.

Q17. In reference to the PW Main on Drawing C-03-103, the line size referenced is 10" HDPE. It ties in at the Chemical Building to a 6" WM. Note 7 on drawing c-03-103 references a detail C-08-503 for a backflow preventer using 6" DI. The hydrant valve referenced near the backflow preventer is a

10" PIV. Please clarify the PW line size and material designation as there seems to be conflicting sizes and pipe material.

A17. See Attachments 2 and 3.

Q18. Please confirm which PVC material classification (per Section 40 05 32) governs the buried 4" UW yard line and 10” PW, specifically, whether PVC-2 (Schedule 80, solvent-welded, ASTM D1785) applies, or whether a pressure-rated gasketed PVC pipe (e.g., AWWA C900, DR14/18/25) is intended for these buried water service line.

A18. See Attachment 2 and Attachment 7.

Q19. Please confirm the correct material for the 10" (and 6") Potable Water yard service line shown on

C-03-103, HDPE per the drawing, or PVC per the Pipeline Schedule. If HDPE is correct, please confirm the required DIPS or IPS sizing standard, SDR/pressure class, and jointing method (fusion, mechanical, etc.). If PVC is correct, please confirm the applicable class/standard (e.g., AWWA

C900, Schedule 40/80) and joint type, and confirm the drawing will be revised.

A19. See Clarification 3, and Attachments 2 and 3.

Q20. Please confirm the required copper tubing type for any buried water service lines on this project, specifically, whether soft-annealed Type K copper tubing (ASTM B88) is required for buried applications, as opposed to the CU-3 (Type L, hard drawn) classification in Section 40 05 17.

A20. See Attachment 2 for revised pipeline schedule.

Q21. Please confirm the required fitting type and joint method for buried copper service connections

(e.g., flared fittings per ANSI B16.26, compression fittings, or other approved buried-rated fittings), since Section 40 05 17 only specifies solder/brazed fittings conforming to ANSI B16.18 /

ANSI/ASME B16.22, which are not typically rated or accepted for direct-bury use.

A21. See Clarification 8.

Q22. Please confirm whether underground copper joints (if any) are permitted to be soldered/brazed, or whether all buried joints must be flared or compression-type with no buried solder joints, per standard water utility practice.

A22. See Clarification 8.

Tyler French, Procurement Administrator

City of Hagerstown

D E F G H J K L

H1

PROVIDE 2L5x5x3/8"

UNDER HVAC EQUIPMENT,

TYP SEE NOTE 2

15'-1" 15'-1" 9'-8" 13'-0" 5'-0" 8'-0" 13'-0" 18'-8"

EXISTING JOIST

EXIST CONDENSING

UNIT TYP

SEE HVAC

EXHAUST FAN

TYP SEE HVAC

S-61-301

A

S-61-301

B

TYP

PROVIDE 2L5x5x3/8"

UNDER HVAC EQUIPMENT,

TYP

UNDER HVAC UNIT

TYP SEE NOTE 2

E X

IS

T

W

X

E X

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TYP

PROVIDE 2L5x5x3/8"

UNDER HVAC EQUIPMENT,

TYP SEE NOTE 2

PROVIDE 2L5x5x3/8"

UNDER HVAC

EQUIPMENT, TYP SEE

NOTE 2

PROVIDE 2L5x5x3/8"

UNDER HVAC

EQUIPMENT, TYP SEE

NOTE 2

1/2

D

0 OF

F

IL

E

0 1 2 4(SCALE BAR IS 4" AT FULL SCALE)

PROJECT NO.:

DESIGNED:

DETAILED:

CHECKED:

APPROVED:

DATE:

SUBCONSULTANT:

P L O

T T

E D

Black & Veatch Corporation Gaithersburg, Maryland

REVISIONS AND RECORD OF ISSUE

R E

V

IT

V E

R S

IO

N

PROFESSIONAL CERTIFICATION.

THE STATE OF MARYLAND

ENGINEER UNDER THE LAWS OF

APPROVED BY ME, AND THAT I AM A

DOCUMENTS WERE PREPARED OR

I HEREBY CERTIFY THAT THESE

DULY LICENSED PROFESSIONAL

LICENSE NO.: _______________,

EXPIRATION DATE: _______________.

A u to d e s k D o c s /4

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S-61-102

HAGERSTOWN

WASTEWATER

TREATMENT PLANT

IMPROVEMENTS

ROOF PLAN

STRUCTURAL

OPERATIONS BUILDING

419612

ASN

JS

BSB

KC

MAY 2026

1/4" = 1'-0"

ROOF LEVEL PLAN WITH ELECTRICAL ROOM OPENINGS

1/8" = 1'-0"

0'4'8' 8' 16'

GENERAL SHEET NOTES

1. CONTRACTOR SHALL FIELD-VERIFY EXISTING JOIST SPACING

AND METAL DECK CONDITIONS PRIOR TO INSTALLATION OF

NEW MEMBERS.

2. CONTRACTOR SHALL FIELD-VERIFY LOCATIONS OF NEW

DOUBLE-ANGLE FRAMING IN COORDINATION WITH NEW ROOF

EQUIPMENT LAYOUTS.

0 5/2026 ISSUED FOR BID

1 7/2026 REVISION 2

48144

12/14/2027

48144

12/14/2027

THIS DRAWING WAS ORIGINALLY

SEALED BY KIRAN CHANDRAN ON MAY

13, 2026, A DULY LICENSED

PROFESSIONAL ENGINEER UNDER

THE LAWS OF THE STATE OF

MARYLAND (LICENSE NUMBER AND

EXPIRATION DATE BELOW).

THIS REPLACES THE ORIGINAL

SIGNED BID DRAWING.

ADDENDUM IV

ATTACHMENT 1

A B C D F G H J K L M

H1

1A

1 2

EXISTING

SLOPE

EXISTING

SLOPE

EX

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EXISTING

SLOPE EXISTING

SLOPE

7 7

8 TYP.

LOCATION OF EXIST. ROOF CURB

ALIGN WEST EDGE OF

NEW ROOF CURB WITH

TO EDGE OF ROOF CURB

2'-0" FROM EDGE OF DRAIN

TO EDGE OF ROOF CURB

2'-0" FROM EDGE OF DRAIN

1/2

D

0 OF

FI

LE

0 1 2 4(SCALE BAR IS 4" AT FULL SCALE)

PROJECT NO.:

DESIGNED:

DETAILED:

CHECKED:

APPROVED:

DATE:

SUBCONSULTANT:

PL

O

TT

ED

REVISIONS AND RECORD OF ISSUE

Black & Veatch Architects, LLC 11401 Lamar Avenue

Overland Park, Kansas 66211

R

EV

IT

V

ER

SI

O N

PROFESSIONAL CERTIFICATION.

THE STATE OF MARYLAND

ENGINEER UNDER THE LAWS OF

APPROVED BY ME, AND THAT I AM A

DOCUMENTS WERE PREPARED OR

I HEREBY CERTIFY THAT THESE

DULY LICENSED PROFESSIONAL

LICENSE NO.: _______________,

EXPIRATION DATE: _______________.

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HAGERSTOWN

WASTEWATER

TREATMENT PLANT

IMPROVEMENTS

ROOF PLAN

ARCHITECTURAL

OPERATIONS BUILDING

419612

CAA

SJU

PDR

PDR

MAY 2026

3/16" = 1'-0"

5' 10'2'6' 4' 0'

SHEET KEYNOTES

GENERAL SHEET NOTES

1.

2.

CONTRACTOR SHALL VERIFY AND MEASURE EXISTING

BUILDING CONDITIONS PRIOR TO BIDDING. EXISTING

CONDITIONS MUST BE CONFIRMED AND PREPARED FOR THE

ACCEPTANCE OF NEW CONSTRUCTION HEREIN.

ALL ROOFING WORK SHALL BE PERFORMED BY A LICENSED

APPLICATOR CERTIFIED BY THE EXISTING ROOFING

MANUFACTURER. TO PRESERVE THE EXISTING WARRANTY,

CONTRACTOR SHALL INSPECT ON SITE AND COORDINATE

WITH EXISTING ROOFING MANUFACTURER WARRANTY

REQUIREMENTS.

1/8" = 1'-0"

ROOF PLAN

1. NEW EQUIPMENT ACCESS ROOF HATCH TO REPLACE

EXISTING. CONFIRM EXACT SIZE AND LOCATION IN FIELD.

PATCH AND REPAIR EXISTING ROOFING MEMBRANE AS

REQUIRED. SEE DETAIL 6/A-61-501.

2. EXISTING EPDM ROOF TO REMAIN.

3. EXISTING ROOF HATCH TO REMAIN.

4. INSTALL INSULATED STRUCTURAL GALVANIZED STEEL

CURB. CONFIRM EXACT SIZE AND LOCATION WITH

EQUIPMENT SUPPLIED. PATCH AND REPAIR EXISTING

ROOFING MEMBRANE AND INSULATION AS REQUIRED. SEE

DETAIL 1/A-61-501.

5. INSTALL INSULATED GALVANIZED STEEL CURB. CONFIRM

EXACT SIZE AND LOCATION WITH EQUIPMENT SUPPLIED.

PATCH AND REPAIR EXISTING ROOFING MEMBRANE AND

INSULATION AS REQUIRED. SEE DETAIL 3/A-61-501.

6. INSTALL INSULATED GALVANIZED STEEL CURB OPENING

ADAPTER. CONFIRM EXACT SIZE AND LOCATION WITH

EQUIPMENT SUPPLIED. PATCH AND REPAIR EXISTING

ROOFING MEMBRANE AND INSULATION AS REQUIRED. SEE

DETAIL 4/A-61-501.

7. INSTALL AN INSULATED ROOF CURB CAP ON EXISTING ROOF

CURB WHERE HVAC EQUIPMENT SHALL BE REMOVED. SEE

DETAIL 7/A-61-501.

8. INSTALL DUCT SUPPORT POST. SEE DETAIL 2/A-61-501.

9. DUCTWORK ABOVE. SEE HVAC DRAWINGS.

10. NEW ROOFING CRICKET.

11. EXISTING ROOFING CRICKET.

12. MODIFY EXISTING ROOFING CRICKET AS REQUIRED TO

ACCOMMODATE NEW HVAC CURB CRICKET.

0 5/2026 ISSUED FOR BID

1 7/2026 REVISION 2

ARCHITECT UNDER THE LAWS OF

DULY LICENSED REGISTERED

19237 11/14/2027

THIS DRAWING WAS ORIGINALLY

SEALED BY PHILIP D. RISHEL ON MAY

13, 2026, A DULY LICENSED

ARCHITECT UNDER THE LAWS OF THE

STATE OF MARYLAND (LICENSE

NUMBER AND EXPIRATION DATE

BELOW).

TTHIS REPLACES THE ORIGINAL

SIGNED BID DRAWING.

2' -0

EXISTING ROOF

METAL DECK

HVAC EQUIPMENT

STRUCTURAL ROOF

EQUIPMENT SUPPORT CURB,

SEE STRUCTURAL

DRAWINGS

WOOD BLOCKING

BATT INSULATION

& ROOF DECK OR

DUCT OPENING, AS

SHOWN ON ROOF

PLAN

EXISTING ROOF

MEMBRANE, OVER COVER

BOARD, OVER RIGID

INSULATION.

CUT/PATCH/REPAIR AS

REQUIRED TO INSTALL

ROOF CURB

FLASHING MEMBRANE

(MATCH EXISTING ROOFING

MEMBRANE MATERIAL),

OVER COVER BOARD

RIGID INSULATION INSIDE

ROOF CURB WALLS

EXISTING STEEL

ROOF FRAMING

BONDING ADHESIVE

GALVANIZED SHEET STEEL

LINER OVER RIGID

INSULATION (1 1/2" MINIMUM

THICKNESS)

SINGLE-PLY ROOF

MEMBRANE OVER

COVERBOARD OVER

TAPERED RIGID

INSULATION

6" MIN

2" M

IN

8" M

IN

CLAMPING RING

LAP SEALANT

BONDING ADHESIVE

FLASHING MEMBRANE

AS REQUIRED BY

ROOFING MANUFACTURER

DUCT SUPPORT

SEE STRUCTURAL

DRAWINGS

DUCT SUPPORT ANCHOR

TO ROOF STRUCTURE

SEE STRUCTURAL

DRAWINGS

EXISTING ROOF

METAL DECK

2' -0

EXISTING ROOF

METAL DECK 6"

FLASHING MEMBRANE

4"

CAP FLASHING

PREFABRICATED METAL

CURB, WELD TO ROOF

DECK 12" O.C. (TYP)

(FOR STRUCTURAL CURBS

SEE STRUCTURAL DRAWINGS)

BY EQUIPMENT FURNISHED

DIMENSION DETERMINED

RIGID INSULATION

IN METAL CURB

EXISTING ROOF

MEMBRANE OVER

COVERBOARD

RIGID

INSULATION

METAL LINER AT

BOTH SIDES

EXISTING METAL

DECK

6" MIN

2" M

IN

8" M

IN

CLAMPING RING

LAP SEALANT

BONDING ADHESIVE

FLASHING MEMBRANE

AS REQUIRED BY

ROOFING MANUFACTURER VENT STACK

CENTER LINE OF VENT

TYPE 8 RISER CLAMP & BASE

PLATE REQUIRED WHENEVER

UNSUPPORTED LENGTH OF VENT

BELOW DECK EXCEEDS 5'-0"

WELD ONE SIDE OF CLAMP ONLY

TO BASE PLATES

1/4x3x6 BASE PLATE

WELD TO METAL DECK

TYP

6"

EXISTING ROOF

MEMBRANE, OVER

COVER BOARD, OVER

RIGID INSULATION.

CUT/PATCH/REPAIR AS

REQUIRED TO INSTALL

ROOF CURB

EXISTING METAL ROOF DECK

FLASHING MEMBRANE

(MATCH EXISTING ROOFING

MEMBRANE MATERIAL)

OVER COVER BOARD

PREFABRICATED INSULATED

METAL ROOF CURB

EXISTING ROOF MEMBRANE OVER

COVERBOARD, OVER RIGID

INSULATION, CUT/PATCH REPAIR AS

REQUIRED TO INSTALL ROOF CURB

BONDING ADHESIVE

EXISTING ROOF DECK OPENING

REINFORCEMENT, VERIFY ON SITE

1' -6

6"

SHEET METAL FLASHING

FASTENED TO WOOD BLOCKING

HVAC DUCTWORK

EXISTING METAL ROOF DECK

FLASHING MEMBRANE

(MATCH EXISTING ROOFING

MEMBRANE MATERIAL)

OVER COVER BOARD

EXISTING ROOF MEMBRANE OVER

COVERBOARD, OVER RIGID

INSULATION, CUT/PATCH/REPAIR AS

REQUIRED TO INSTALL ROOF CURB

BONDING ADHESIVE

EXISTING ROOF DECK OPENING

REINFORCEMENT, VERIFY ON SITE

2' -0

PREFABRICATED INSULATED

METAL ROOF CURB

SHEET METAL FLASHING

FASTENED TO WOOD

BLOCKING

EQUIPMENT ACCESS HATCH

TO REPLACE EXISTING

EXISTING METAL ROOF DECK

EXISTING ROOF CURB TO

REMAIN

EXISTING ROOF

MEMBRANE OVER

COVERBOARD

EXISTING RIGID

INSULATION

CURB COVERS SHALL BE

SECURELY FASTENED TO

ROOF CURB

DRIP EDGE FLASHING

RIGID INSULATION (1-INCH MINIMUM)

SLOPE

TO DRAIN

PREFABRICATED INSULATED METAL

CURB COVER

STEEL STIFFENER

SHEET METAL LINER

1/2

D

0 OF

FI

LE

0 1 2 4(SCALE BAR IS 4" AT FULL SCALE)

PROJECT NO.:

DESIGNED:

DETAILED:

CHECKED:

APPROVED:

DATE:

SUBCONSULTANT:

PL

O

TT

ED

REVISIONS AND RECORD OF ISSUE

Black & Veatch Architects, LLC 11401 Lamar Avenue

Overland Park, Kansas 66211

R

EV

IT

V

ER

SI

O N

PROFESSIONAL CERTIFICATION.

THE STATE OF MARYLAND

ENGINEER UNDER THE LAWS OF

APPROVED BY ME, AND THAT I AM A

DOCUMENTS WERE PREPARED OR

I HEREBY CERTIFY THAT THESE

DULY LICENSED PROFESSIONAL

LICENSE NO.: _______________,

EXPIRATION DATE: _______________.

Au to de sk

D oc s:

//4

- H ag er st ow n W

W

TP

Im pr ov em en ts

/4

2-

-O pe ra tio ns

B ui ld in g.

rv t 7/

/2

2:

:4

PM

A-61-501

HAGERSTOWN

WASTEWATER

TREATMENT PLANT

IMPROVEMENTS

ROOF DETAILS

ARCHITECTURAL

OPERATIONS BUILDING

419612

CAA

SJU

PDR

PDR

MAY 2026

GENERAL SHEET NOTES

1.

2.

CONTRACTOR SHALL VERIFY AND MEASURE EXISTING

BUILDING CONDITIONS PRIOR TO BIDDING. EXISTING

CONDITIONS MUST BE CONFIRMED AND PREPARED FOR THE

ACCEPTANCE OF NEW CONSTRUCTION HEREIN.

ALL ROOFING WORK SHALL BE PERFORMED BY A LICENSED

APPLICATOR CERTIFIED BY THE EXISTING ROOFING

MANUFACTURER. TO PRESERVE THE EXISTING WARRANTY,

CONTRACTOR SHALL INSPECT ON SITE AND COORDINATE

WITH EXISTING ROOFING MANUFACTURER WARRANTY

REQUIREMENTS.

1 1/2" = 1'-0"

ROOF STRUCTURAL CURB DETAIL - LARGE

EQUIPMENT1

1 1/2" = 1'-0"

0'3"12" 1'6"9"

1 1/2" = 1'-0"

ROOF POST DETAIL - DUCT SUPPORT2

1 1/2" = 1'-0"

ROOF CURB DETAIL - CLEAR OPENING3

1 1/2" = 1'-0"

ROOF PENETRATION DETAIL - SMALL PIPE5

1 1/2" = 1'-0"

ROOF CURB DETAIL - OPENING ADAPTER4

1 1/2" = 1'-0"

ROOF CURB DETAIL - EQUIPMENT ACCESS HATCH6

1 1/2" = 1'-0"

ROOF CURB COVER DETAIL7

0 5/2026 ISSUED FOR BID

1 7/2026 Revision 2

ARCHITECT UNDER THE LAWS OF

DULY LICENSED REGISTERED

19237 11/14/2027

THIS DRAWING WAS ORIGINALLY

SEALED BY PHILIP D. RISHEL ON MAY

13, 2026, A DULY LICENSED

ARCHITECT UNDER THE LAWS OF THE

STATE OF MARYLAND (LICENSE

NUMBER AND EXPIRATION DATE

BELOW).

THIS REPLACES THE ORIGINAL

SIGNED BID DRAWING.

T

T

T

T

T

D E F G H J K L M

JANITOR ROOM

TRAINING ROOM

OFFICE

CONTROL ROOM

ELECTRICAL

ROOM (EX)

RESTROOM

PLC ROOM

EXISTING

INSTRUMENTATION

AND

PROGRAMMING

OFFICE

EXISTING MEN'S

RESTROOM

EXISTING

CONFERENCE

ROOM

EXISTING

WOMEN'S

RESTROOM

EXISTING LUNCH

ROOM

ELECTRICAL

ROOM 1

LAB

ELECTRICAL

ROOM 2

H1

"x

(L

12"x10"

SR-1-440

(TYP OF 3)

22"x18" (L1), DUCT UP

20"x14" (L1), DUCT UP

RETURN

1750 CFM,

BIRDSCREEN

VCD (TYP)

12"x12"-6"

SR-1-100

6" DIA (L)

8"x14" (L1)

12"x14" (L1)

12" DIA (TYP)

24"x24"-12"

SD-1-325

22"x18" (L1)

30"x16" (L1) DUCT UP, CONNECT TO PAC-001

30"x16" (L1) DUCT UP, CONNECT TO PAC-1

30"x16" (L1)

"x

(L

24"x10" (L1)

18"x12" (L1)

24"x6" (L1)

12"x10"

RG-1-100

12"x10" (L1)

24"X24"-22"x22"

RD-1-780

12"x16" (L1)

24"x6" (L1)

24"X24"-22"x22"

RD-1-750

24"x24"-10"

SD-1-175

24"x12"- 12"x10"

RD-2-210

24"x12"- 12"x10"

RD-2-100

24"x24"-6"

SD-1-100

6" DIA (L1)

6" DIA (L1)

10" DIA (L1)

12"x16" (L1)

24"x24"-10"

SD-1-280

(TYP OF 2)

12"x24"-8"x8"

RD-2-80

(TYP OF 2)

24"x24"-8"

SD-1-175

8" DIA (L1)

8" DIA (L1)

8" DIA (L1)

8" DIA (L1)

24"x24"-8"

SD-1-250

8" DIA (L1)

24"x24"-8"

SD-1-225

12"x24"-12"x10"

RD-2-480

(TYP OF 2)

24"x24"-16"x16"

RD-1-720

24"x24"-16"x16"

RD-1-1100

32"x18" (L1)

DUCT UP,

CONNECT

TO PAC-005

18"x32" (L1) DUCT UP, CONNECT TO PAC-005

8" DIA (L1)

8" DIA (L1)

6" DIA (L1)

8" DIA (L1)

8" DIA 8" DIA (L1)

8" DIA (L1)

24"x12"-12"x10"

RD-2-250

(TYP OF 2)

24"x12"-10"x8"

RD-2-150

(TYP OF 2)

12"x12"-6"

SR-1-50

24"x24"-8"

SD-1-225

24"x24"-8"

SD-1-200

(TYP OF 4)

24"x24"-8" SD-1-75 24"x24"-8"

SD-1-125

16"x12"(L1)

8" DIA (L1)

24"x24"-6"

ED-1-50

24"x24"-10"

ED-1-250

6" DIA

6" DIA

10" DIA

24"x24"-10"

SD-1-325

10" DIA (L1)

8" DIA (L1)

8" DIA (L1)

20"x32"

DUCT UP

32"x18"

DUCT UP

24"x24"-18"x18"

RD-1-1030

24"x24"-18"X18"

RD-1-1100

10" DIA (L1)

"x

(L

32"x18" (L1)

14"x16" (L1)

24"x16" (L1)

24"x24"-10"

SD-1-325

12"x12"-6"

SR-1-50

14"x16" (L1)

14"x16" (L1)

24"x24"-12"

SD-1-350

(TYP OF 2)

12"x10" (L1)

8" DIA (L1)

24"x24"-8"

SD-1-50

16"x16" (L1)

24"x24"-16"x16"

RD-1-880

(TYP OF 2)

6"x6"

24"x24"-8"

ED-1-125

6"x6"

DUCT UP

TO 61-EF-001

6"x6"

H

H-95-501

CEILING DIFFUSER -

HORIZONTAL DUCT

CONNECTION (TYP)

B

H-95-501

REGISTER /

GRILLE (TYP)

8" DIA (L1)

8" DIA (L1)

12"x10" (L1)

(TYP)

6" DIA (L1)

VCD

(TYP)

EL 485.33'

10" DIA DUCT

BDD

8"x8" DUCT UP

TO ROOF HOOD

BDD

8"x8" DUCT UP

TO ROOF HOOD

BDD

8"x8" DUCT UP

TO ROOF HOOD

24"x24"

SR-2-3800

28"x28" (L1), DUCT UP TO

ROOF

BIRD SCREEN

OVER DUCT

OPENING

24"x24" (L1)

DUCT UP

TO ROOF

61-T-003

61-T-001 61-T-002 61-T-005

61-T-004

14"x10" (L1)

16"x12"(L1)

14"x12"12"x10"(L1)

24"x24"-6"

SD-1-50

24"x24"-12"

SD-1-300

24"x24"-8"

SD-1-150

12"x10"

SR-1-430

DUCT CONNECT

TO 61-EF-002

EXISTING

OPS. LAB

61-EF-003

6"x6"

61-EF-005

6"x6"

61-EF-004

12"x10"

10"x8"

12"x10"

24"x12"-14"x10"

RD-2-300

J

H-95-501

WALL PENETRATION

INTERIOR (TYP)

32"x18" (L1)

16"x16" (L1)

18"x18"

18"x18"

32"x20"

1/2

D

0 OF

F

IL

E

0 1 2 4(SCALE BAR IS 4" AT FULL SCALE)

PROJECT NO.:

DESIGNED:

DETAILED:

CHECKED:

APPROVED:

DATE:

SUBCONSULTANT:

P L O

T T

E D

Black & Veatch Corporation Gaithersburg, Maryland

REVISIONS AND RECORD OF ISSUE

R E

V

IT

V E

R S

IO

N

PROFESSIONAL CERTIFICATION.

THE STATE OF MARYLAND

ENGINEER UNDER THE LAWS OF

APPROVED BY ME, AND THAT I AM A

DOCUMENTS WERE PREPARED OR

I HEREBY CERTIFY THAT THESE

DULY LICENSED PROFESSIONAL

LICENSE NO.: _______________,

EXPIRATION DATE: _______________.

A u to d e s k D o c s /4

H a g e rs to w n W

W T

P I m p ro v e m e n ts

-6

-O p e ra ti o n s B u ild in g .r v t

/2

/2

:5 :4

A

M

H-61-102

HAGERSTOWN

WASTEWATER

TREATMENT PLANT

IMPROVEMENTS

OVERALL UPPER LEVEL

FLOOR PLAN

HVAC

OPERATIONS BUILDING

419612

JCM

RKS

MFR

MFR

MAY 2026

3/16" = 1'-0"

UPPER LEVEL - HVAC PLAN

3/16" = 1'-0"

5' 10'2'6' 4' 0'

GENERAL SHEET NOTES

SHEET KEYNOTES

1. SEE DRAWING H-00-001, LEGENDS, ABBREVIATIONS, AND

GENERAL NOTES.

1. (E) SPLIT SYSTEM TO REMAIN.

2. (E) HYDRONIC HEATER ABOVE CEILING TO REMAIN.

3. 24"x24" CONTINUATION.

0 5/2026 ISSUED FOR BID

33747

2/27/2027

ADDENDUM IV

THIS DRAWING WAS ORIGINALLY

SEALED BY MICHELE F. ROTH ON MAY

13, 2026, A DULY LICENSED

PROFESSIONAL ENGINEER UNDER

THE LAWS OF THE STATE OF

MARYLAND (LICENSE NUMBER AND

EXPIRATION DATE BELOW).

THIS REPLACES THE ORIGINAL

SIGNED BID DRAWING.

1 7/2026 REVISION 2

D E F G H J K L M

H1

METAL EQUIPMENT CURB,

SEE ARCH DETAIL DRAWING

(TYP) 22"x18" L2, DUCT DN

20"x14" L2, DUCT DN

32"x18" L2, DUCT DN

32"x18" L2, DUCT DN

33"x18" L2, DUCT DN

32"x18" L2, DUCT DN

32"x20" L2, DUCT DN

32"x18" L2, DUCT DN

61-PAC-004

61-PAC-002

6"x6"

DUCT DN

CONDENSATE

DRAIN (TYP)

E

H-95-501

DRAIN PAN TRAP -

DRAW THROUGH

(TYP)

F

H-95-501

ROOF

MOUNTED FAN

METAL EQUIPMENT CURB,

SEE ARCH DETAIL

DRAWING (TYP)

P

H-95-501

ROOF HOOD

(TYP)

8"x8" DUCT DN

8"x8" DUCT DN

8"x8" DUCT DN

10" DIA

DUCT DN

FLEX

CONN (TYP)

24"x24" (L2)

24"x24" (L2), DUCT DN

28"x28" (L2), DUCT DN

"x

(L

28"x28" (L2)

28"x28" (L2)

28"x28" (L2)

61-RH-001

61-RH-002

61-RH-003

61-EF-007

61-EF-006

61-PAC-005

61-PAC-001

61-PAC-003

1/2

D

0 OF

F

IL

E

0 1 2 4(SCALE BAR IS 4" AT FULL SCALE)

PROJECT NO.:

DESIGNED:

DETAILED:

CHECKED:

APPROVED:

DATE:

SUBCONSULTANT:

P L O

T T

E D

Black & Veatch Corporation Gaithersburg, Maryland

REVISIONS AND RECORD OF ISSUE

R E

V

IT

V E

R S

IO

N

PROFESSIONAL CERTIFICATION.

THE STATE OF MARYLAND

ENGINEER UNDER THE LAWS OF

APPROVED BY ME, AND THAT I AM A

DOCUMENTS WERE PREPARED OR

I HEREBY CERTIFY THAT THESE

DULY LICENSED PROFESSIONAL

LICENSE NO.: _______________,

EXPIRATION DATE: _______________.

A u to d e s k D o c s /4

H a g e rs to w n W

W T

P I m p ro v e m e n ts

-6

-O p e ra ti o n s B u ild in g .r v t

/2

/2

:5 :1

A

M

H-61-103

HAGERSTOWN

WASTEWATER

TREATMENT PLANT

IMPROVEMENTS

ROOF PLAN

HVAC

OPERATIONS BUILDING

419612

JCM

RKS

MFR

MFR

MAY 2026

3/16" = 1'-0"

5' 10'2'6' 4' 0'

3/16" = 1'-0"

ROOF LEVEL - HVAC PLAN

GENERAL SHEET NOTES

SHEET KEYNOTES

1. SEE DRAWING H-00-001, LEGENDS, ABBREVIATIONS, AND

GENERAL NOTES.

1. (E) CONDENSING UNIT TO REMAIN.

2. ROOF HOOD EQUAL TO GREENHECK FGR GRAVITY

RELIEF, 8x8 NECK SIZE, WITH BACKDRAFT DAMPER.

3. MODIFY EXISTING OPENING AS NEEDED TO ACCOMMODATE

DUCT. PROVIDE, CURB OPENING ADAPTER PER

ARCHITECTURAL DETAIL.

4. EXISTING ROOF OPENING COVERED BY ARCHITECTURAL CURB

CAP. REFER TO ARCHITECTURAL DETAIL DRAWINGS.

5. REFER TO DETAIL C/S-95-511

6. REFER TO DETAIL D/S-95-511

7. REFER TO DETAIL E/S-95-511

8. RELOCATE EXISTING CONDENSING UNIT AS NEEDED TO

PROVIDE CLEARANCE FOR PAC UNIT.

0 5/2026 ISSUED FOR BID

1 7/2026 REVISION 2

33747

2/27/2027

THIS DRAWING WAS ORIGINALLY

SEALED BY MICHELE F. ROTH ON MAY

13, 2026, A DULY LICENSED

PROFESSIONAL ENGINEER UNDER

THE LAWS OF THE STATE OF

MARYLAND (LICENSE NUMBER AND

EXPIRATION DATE BELOW).

THIS REPLACES THE ORIGINAL

SIGNED BID DRAWING.

Pipeline Schedule

Nominal

Size, in Service Location Installation Material Coating* Lining

18 Sanitary Sewer Yard Piping Buried DIP A4 Cement Mortar

16 In-Plant Pumping, IP In-Plant Pump Station Outdoors, insulated with heat trace DIP A7 Ceramic Epoxy

≤16 Return Activated Sludge, RAS RAS/WAS Pump Station, Operations Building Indoors DIP A2 Ceramic Epoxy

4-12 10 Potable Water, PW Yard Piping Buried PVC DIP N/A A4 N/A Cement Mortar

4 Waste Activated Sludge, WAS RAS/WAS Pump Station, Operations Building Indoors DIP A2 Ceramic Epoxy

4 Primary Sludge, PS RAS/WAS Pump Station, Operations Building Indoors DIP A2 Ceramic Epoxy

4 Utility Water, UW Yard Piping Buried PVC Pressure Pipe N/A N/A

4 Non-potable water, NPW Headworks Indoors DIP A7 Ceramic Epoxy

2.5 Drain, DRN Yard Piping Buried PVC-2 N/A N/A

1 Magnesium Oxide, MgO Yard Piping Buried CPVC N/A N/A

1 Chemical Yard Piping Chemical Duct Bank RPT N/A N/A

<4 Potable Water, PW Yard Piping Buried CU-1 F2 N/A

* See the Protective Coatings section for coating designations

SCHEDULE 40 05 05.20-S01 - Pipeline Schedule

City of Hagerstown

Hagerstown WWTP Phase 1 Improvements

40 05 05.20-S01

Addendum IV

BV Project No. 419612

July 30

ATTACHMENT 2