1-564-22 RFB 10-2026 Dwg Set.pdf

PDF 13 MB Posted Oct 22, 2026

Attached to: Second Stage Final Clarifier Repairs Contract No. 2026-02
Solicitation number: US.258989
Issued by: Allegheny County, Pennsylvania

About this file

Written by GovTribe AI · Oct 26, 2026

This is a drawing set for the Second Stage Final Clarifier Repairs project prepared by KLH Engineers, Inc. for the Pleasant Hills Authority in Allegheny County, Pennsylvania. The project involves the replacement of two clarifier drive assemblies and associated work at the Pleasant Hills Sewage Treatment Plant located at 628 Cochran Mill Road, Jefferson Hills, PA 15025. The drawings include a title sheet, existing site plan, photographs with notes and details, second stage clarifier plans, and a second stage clarifier section. Key components identified for work include the removal and replacement of clarifier drive assemblies, structural steel components, influent well assemblies, sludge withdrawal pipes, truss arm assemblies, primary drive assemblies with 12-inch worm gears, scum boxes, and joint sealants on both Second Stage Final Clarifier No. 1 and No. 2. Additional work involves blasting and coating of specified structural elements. The project is released for bid in October 2026, with sealed bids due November 24, 2026 at 10:00 a.m. via the PennBid Program. A mandatory pre-bid conference is scheduled for Thursday, November 12, 2026 at 10:00 a.m. at the treatment plant site. The expected project duration is 220 calendar days.

The drawing set emphasizes Pennsylvania underground utility line protection requirements, mandating that contractors notify all utility companies at least three working days prior to excavation through the Pennsylvania One Call System at 1-800-242-1776. Electrical work specifications require disconnection of power and control feeds to existing clarifier drives, reuse of existing conduit and wire for proposed clarifier drive installation without cable splicing, and full compliance with Division 16 specifications and applicable electrical codes. All work shown on photographs is noted as typical to each clarifier unit. The project site is located within the Lick Run Watershed (Chapter 93 - Trout Stocking Fishery) and requires coordination with multiple utility companies and regulatory agencies prior to construction commencement.

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Drawing No.

Sheet No.

5313 Campbells Run Road, Suite 100 Pittsburgh, PA 15205

Phone: 412.494.0510 Fax: 412.494.0426 info@klhengineers.com

KLH

ENGINEERS, INCNOTE: IN ACCORDANCE WITH THE PENNSYLVANIA UNDERGROUND UTILITY LINE PROTECTION LAW, ACT 287 OF

1974 AS AMENDED BY ACT 50 OF 2017, THE CONTRACTOR MUST NOTIFY ALL UTILITY COMPANIES PRIOR TO EXCAVATION FOR FIELD LOCATION AND SIZE CONFORMATION. AT LEAST THREE (3) DAYS NOTIFICATION PRIOR TO THE ACTUAL START OF EXCAVATION IS REQUIRED. UTILITIES CAN BE NOTIFIED THROUGH THE

PENNSYLVANIA ONE CALL SYSTEM, INC. BY CALLING 1-800-242-1776. G1

No part of this document may be reproduced or transmitted in any form, by any means without written permission, except for brief excerpts in reviews or analysis.

TITLE SHEET

EXISTING SITE PLAN

PHOTOGRAPHS, NOTES & DETAILS

SECOND STAGE CLARIFIER PLAN

G1 C1 M1 M2 of 5

Order No.

DESCRIPTIONDWG. NO.SHEET NO.

DRAWING LIST

CONTRACT NO. 2026-02 GENERAL/MECHANICAL

SECOND STAGE FINAL CLARIFIER REPAIRS

564-22

CALL BEFORE YOU DIG!

PENNSYLVANIA LAW REQUIRES

3 WORKING DAYS NOTICE FOR

CONSTRUCTION PHASE

AND 10 WORKING DAYS

IN DESIGN STAGE-STOP CALL

1-800-242-1776

ANIA ONE CALL SYSTEM

, INC

STOP -CALL BEFORE YOU D

RELEASED FOR BID

OCTOBER 2026

ALLEGHENY COUNTY, PENNSYLVANIA

PLEASANT HILLS AUTHORITY

SCALE: 1" = 2000'

PROJECT LOCATION

LOCATION MAP

SCALE: 1" = 2000'

5 of 5 M3

SECOND STAGE CLARIFIER SECTION

628 COCHRAN MILL ROAD

JEFFERSON HILLS, PA 15025

AutoCAD SHX Text S:\Active Clients\564 Pleasant Hills Authority\564-22 2nd Stage Final Clarifiers Survey\Dwg\G564-22-001.dwg 10/19/2026 10:29 AM Plotted By: Jason Antitomas 10/19/2026 10:29 AM Plotted By: Jason Antitomas10/19/2026 10:29 AM Plotted By: Jason Antitomas Plotted By: Jason AntitomasJason Antitomas

Lick Run

(Ch. 93 - T

SF)

Lick Run

(Ch. 93 - T

SF)

EXISTING UNDERGROUND ELECTRIC

EXISTING UNDERGROUND TELEPHONE

Legend

PA DOT INFORMATION

EXISTING SIGN

EXISTING LIGHTPOLE

EXISTING MAILBOX

EXISTING WELL

EXISTING 10' CONTOUR

EXISTING 2' CONTOUR

EXISTING PROPERTY LINE

EXISTING MONUMENT

EXISTING IRON PIN

EXISTING GAS VALVE

EXISTING GASLINE

EXISTING GAS CURB BOX

EXISTING GAS METER

EXISTING GRAVEL PAVING

EXISTING ASPHALT PAVING

EXISTING BUILDING

EXISTING STORM MANHOLE

EXISTING SANITARY MANHOLE

EXISTING EVERGREEN TREE

EXISTING DECIDUOUS TREE

EXISTING WATER CURB BOX

EXISTING WATERLINE

EXISTING STORM SEWER

EXISTING SANITARY SEWER

EXISTING HYDRANT

EXISTING GUY WIRE

EXISTING UTILITY POLE

EXISTING WATER METER

EXISTING WATER VALVE

EXISTING HEDGE ROW

EXISTING FENCE LINE

EXISTING SEPTIC TANK

STREET NAMES

EXISTING WATERCOURSE

PROPERTY OWNER INDEX (ALT)

EXISTING SANITARY CO

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EXISTING STORM INLETS

EXISTING GUIDE RAIL

Street Name

S.R XXXX

SEG. XXX

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EXISTING GAS LINE MARKER

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Lic k R un Co ch ra n

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20' 40'020'

OVERALL SITE PLAN

SCALE: 1"=150'

150' 300'0150'

AutoCAD SHX Text Asphalt Driveway

AutoCAD SHX Text Concrete Pad

AutoCAD SHX Text San Mh Top=899.97 Inv.El.=893.27(In) Inv.El.=893.27(In) 36" Inv.El.=893.27(Out)

AutoCAD SHX Text Gate

AutoCAD SHX Text

8" PVC

AutoCAD SHX Text Strm Pipe Outlet 8" Inv.El.=893.37(Out)

AutoCAD SHX Text Lawn

AutoCAD SHX Text Gabion Baskets

AutoCAD SHX Text N/F PLEASANT HILLS AUTH Tax Parcel 0769-G-00030-0000-01

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AutoCAD SHX Text Conc. Sidewalk

AutoCAD SHX Text Conc. Wall

AutoCAD SHX Text Asphalt Driveway

AutoCAD SHX Text Concrete Pads

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AutoCAD SHX Text 2nd Stage Final Clarifier No.2

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AutoCAD SHX Text Return Sludge Pumping Station & Blower Building

AutoCAD SHX Text 2nd Stage Aeration Tanks No. 1,2,3 & 4

AutoCAD SHX Text Conc. Sidewalk

AutoCAD SHX Text Chain Link Fence

AutoCAD SHX Text Lawn

AutoCAD SHX Text Valve Chamber

AutoCAD SHX Text Chain Link Fence

AutoCAD SHX Text Plant Generator Building

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AutoCAD SHX Text 2nd Stage Final Clarifier No.2

AutoCAD SHX Text w

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S.R XXXX

AutoCAD SHX Text 2 Sty Brick Hse #555

AutoCAD SHX Text Septic Tank

AutoCAD SHX Text (Type Surface)

AutoCAD SHX Text Plant Generator Building

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AutoCAD SHX Text 2nd Stage Aeration Tanks No.1,2,3 & 4

AutoCAD SHX Text Return Sludge Pumping Station & Blower Building

AutoCAD SHX Text 2nd Stage Final Clarifier No.2

AutoCAD SHX Text 2nd Stage Final Clarifier No.1

AutoCAD SHX Text Sludge Digester No.1

AutoCAD SHX Text Sludge Digester No.2

AutoCAD SHX Text Filter Building

AutoCAD SHX Text Primary Tanks No.1,2,3&4

AutoCAD SHX Text First Stage Aeration Tanks

AutoCAD SHX Text First Stage Final Clarifier No.1

AutoCAD SHX Text First Stage Final Clarifier No.2

AutoCAD SHX Text First Stage Final Clarifier No.5

AutoCAD SHX Text First Stage Final Clarifier No.4

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AutoCAD SHX Text Maintenance Building

AutoCAD SHX Text Blower Building

AutoCAD SHX Text Equipment Building

AutoCAD SHX Text Items Identified with Mixed Case Text are Existing.

S:\Active Clients\564 Pleasant Hills Authority\564-22 2nd Stage Final Clarifiers Survey\Dwg\C564-22-001.dwg 10/16/2026 9:49 AM Plotted By: Jason Antitomas 10/16/2026 9:49 AM Plotted By: Jason Antitomas10/16/2026 9:49 AM Plotted By: Jason Antitomas Plotted By: Jason AntitomasJason Antitomas

M2-A

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M 3-

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M 3-F

M 3-E

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M3-B

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= PHOTOGRAPH LOCATION

SCALE: 1/8" = 1'-0"

048 4 826

= ITEMS FOR BLAST & COAT ON THIS DRAWING

AutoCAD SHX Text Second Stage Return Sludge Pumping Station & Blower Building

AutoCAD SHX Text Second Stage Final Clarifier No.1

AutoCAD SHX Text Second Stage Final Clarifier No.2

AutoCAD SHX Text 24" D.I. Effluent

AutoCAD SHX Text 18" D.I. Sludge Return

AutoCAD SHX Text 6" D.I. Waste Sludge Line Inv. El.888.02

AutoCAD SHX Text 8" D.I. Make-Up Line Inv. El.888.02

AutoCAD SHX Text 6" D.I. Waste Sludge Line Inv. El.888.02

AutoCAD SHX Text 8" D.I. Make-Up Line Inv. El.888.02

AutoCAD SHX Text 24" D.I. Effluent Inv. El. 887.41

AutoCAD SHX Text Walkway

AutoCAD SHX Text Aluminum Handrail

AutoCAD SHX Text Walkway

AutoCAD SHX Text Aluminum Handrail

AutoCAD SHX Text Direction Of Rotation

AutoCAD SHX Text Clarifier Assembly

AutoCAD SHX Text Sludge Withdrawal Pipes (Typ.)

AutoCAD SHX Text Truss Arm Assembly, Flight & Squeegee

AutoCAD SHX Text Primary Drive Assembly & 12" Worm Gear

AutoCAD SHX Text Influent Well Assembly

AutoCAD SHX Text Clarifier Assembly

AutoCAD SHX Text Scum Box

AutoCAD SHX Text Flap Gate Valve (Typ. of 12)

AutoCAD SHX Text Joint Sealant (Typ.)

AutoCAD SHX Text Items Identified with Mixed Case Text are Existing.

S:\Active Clients\564 Pleasant Hills Authority\564-22 2nd Stage Final Clarifiers Survey\Dwg\M564-22-001.dwg 10/19/2026 9:28 AM Plotted By: Jason Antitomas 10/19/2026 9:28 AM Plotted By: Jason Antitomas10/19/2026 9:28 AM Plotted By: Jason Antitomas Plotted By: Jason AntitomasJason Antitomas

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SECOND FINAL CLARIFIER NO.2

SECTION M2-A (TYPICAL TO EACH)

SCALE: 1/4" = 1'-0"

4' 8'04'

= ITEMS FOR BLAST & COAT ON THIS DRAWING

LEGEND

AutoCAD SHX Text Second Stage Final Clarifier No.2

AutoCAD SHX Text Clarifier

AutoCAD SHX Text Sludge Withdrawal Pipes (Typ.)

AutoCAD SHX Text El.911.00

AutoCAD SHX Text El.908.54

AutoCAD SHX Text Water Level El.908.02

AutoCAD SHX Text El.907.73

AutoCAD SHX Text El.905.67

AutoCAD SHX Text Primary Drive Assembly & 12" Worm Gear

AutoCAD SHX Text Spur Gear Drive Assembly

AutoCAD SHX Text Aluminum Handrail

AutoCAD SHX Text Bridge Assembly

AutoCAD SHX Text Scum Deflector

AutoCAD SHX Text Skimmer Boom

AutoCAD SHX Text Influent Well Assembly

AutoCAD SHX Text Clarifier Assembly (Typ.)

AutoCAD SHX Text Center Pier & Drive Cage

AutoCAD SHX Text Sight Box & Metal Sludge Pipes

AutoCAD SHX Text Scum Box

AutoCAD SHX Text Structural Steel

AutoCAD SHX Text Power & Control Conduits (Typ. of 3) (Shown Reflected)

AutoCAD SHX Text Bridge Mounted Light Post (Typ.)

AutoCAD SHX Text Items Identified with Mixed Case Text are Existing.

S:\Active Clients\564 Pleasant Hills Authority\564-22 2nd Stage Final Clarifiers Survey\Dwg\M564-22-002.dwg 10/16/2026 11:48 AM Plotted By: Jason Antitomas 10/16/2026 11:48 AM Plotted By: Jason Antitomas10/16/2026 11:48 AM Plotted By: Jason Antitomas Plotted By: Jason AntitomasJason Antitomas

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SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-A

SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-B

SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-C

SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-D

SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-K

SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-G

SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-E

SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-I

SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-F

SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-J

SECOND STAGE FINAL CLARIFIERS

PHOTO NO.M3-H

BLAST & COAT

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BLAST & COAT

REMOVE & REPLACE

BLAST & COAT

REMOVE & REPLACE

ELECTRICAL NOTES:

1. CONTRACTOR SHALL DISCONNECT POWER AND CONTROL FEEDS TO

EXISTING CLARIFIER DRIVE.

2. ALL WIRING FOR THE PROPOSED CLARIFIER DRIVE SHALL BE INSTALLED

PER THE MANUFACTURERS REQUIREMENTS.

3. REUSE EXISTING CONDUIT AND WIRE FOR BOTH POWER AND CONTROL

FEEDERS TO THE PROPOSED CLARIFIER DRIVE. SPLICING OF FEEDER

CABLES IS NOT ACCEPTABLE.

4. ALL ELECTRICAL WORK REQUIRED FOR THE INSTALLATION OF THE

PROPOSED CLARIFIER DRIVE SHALL BE IN COMPLETE COMPLIANCE WITH

ALL STANDARDS AND CODES OUTLINED IN THE DIVISION 16

SPECIFICATIONS.

BLAST & COAT

REMOVE & REPLACE

GENERAL NOTES:

1. WORK SHOWN ON PHOTOGRAPHS SHALL BE TYPICAL TO EACH CLARIFIER UNIT.

BLAST & COAT

REMOVE & REPLACE

AutoCAD SHX Text Items Identified with Mixed Case Text are Existing.

AutoCAD SHX Text S:\Active Clients\564 Pleasant Hills Authority\564-22 2nd Stage Final Clarifiers Survey\Dwg\M564-22-003.dwg 10/19/2026 10:19 AM Plotted By: Jason Antitomas 10/19/2026 10:19 AM Plotted By: Jason Antitomas10/19/2026 10:19 AM Plotted By: Jason Antitomas Plotted By: Jason AntitomasJason Antitomas

AutoCAD SHX Text Sludge Withdrawal Pipes (Typ.)

AutoCAD SHX Text Truss Arm Assembly, Flight & Squeegee

AutoCAD SHX Text Walkway

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AutoCAD SHX Text Primary Drive Assembly & 12" Worm Gear

AutoCAD SHX Text Center Pier & Drive Cage

AutoCAD SHX Text Sludge Withdrawal Pipes (Typ.)

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AutoCAD SHX Text Primary Drive Assembly & 12" Worm Gear

AutoCAD SHX Text Influent Well Assembly

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AutoCAD SHX Text Sludge Withdrawal Pipes (Typ.)

AutoCAD SHX Text Truss Arm Assembly, Flight & Squeegee

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AutoCAD SHX Text Sludge Withdrawal Pipes (Typ.)

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AutoCAD SHX Text Scum Deflector

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AutoCAD SHX Text Sludge Withdrawal Pipes (Typ.)

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AutoCAD SHX Text Scum Box

AutoCAD SHX Text Electrical & Control Conduits & Wires

AutoCAD SHX Text Structural Steel

AutoCAD SHX Text Drive Cage

AutoCAD SHX Text Flap Gate Valve (Typ.)

AutoCAD SHX Text Joint Sealant

AutoCAD SHX Text Sight Box

AutoCAD SHX Text Structural Steel

AutoCAD SHX Text Sludge Withdrawal Pipes (Typ.)

AutoCAD SHX Text Center Pier

AutoCAD SHX Text Drive Cage

AutoCAD SHX Text Flap Gate Valve (Typ.)

Flap Gate Valve (Typ.)

Sheets and Views

1 G564-22-001 - G1

2 C564-22-001 - C1

3 M564-22-001 - M1

4 M564-22-002 - M2

5 M564-22-003 - M3

File details come from the government source that posted it. Updated Oct 26, 2026.