Addendum 4 - Final QUESTIONS Final.pdf

SAN BERNARDINO COUNTY

SOLID WASTE MANAGEMENT DIVISION

222 West Hospitality Lane, 2nd Floor San Bernardino, CA 92415-0017

Fax: 909-386-8900

ADDENDUM NO. 4

TO THE PLANS AND BID DOCUMENTS FOR

THE LANDFILL GAS FLARE STATION at the MID VALLEY SANITARY LANDFILL in Rialto, California

December 04, 2025

BID DUE DATE: 10:00AM DECEMBER 9, 2025

BID DUE DATE: 10:00AM DECEMBER 16, 2025

The following changes and/or additions shall be made to the Plans and Bid Documents for the Landfill Gas Flare Station at the Mid Valley Sanitary Landfill. All other requirements of the Plans and Bid Documents shall remain the same.

The following changes are to be made part of the Contract Documents. Bidders are required to acknowledge receipt of these changes on the Bid Proposal.

I. REVISED BID DATE:

Bid Opening Date has been modified, Special Provisions Page 1, as follows:

“Notice is herby given that the San Bernardino County, Department of Public Works – Solid Waste Management Division on behalf of the Board of the San Bernardino County, California will receive sealed bis no later than 10:00 a.m. on December 16, 2025, in the Department of Public Works, Solid Waste Management Division offices, locate at 222 W.

Hospitality Lane, 2nd Floor, San Bernardino, California, 92415-0017, at which time the bids will be publicly opened and declared for the Landfill Gas Flare Station at the Mid Valley Sanitary Landfill in Rialto, California. Bid received after this time will not be considered.”

II. PROJECT PLANS AND SPECIFICATIONS

1. Delete and Replace Section C1 in its entirety of the Technical Specifications with Section C1 contained within Attachment 3.

2. Delete and replace in its entirety Bid Schedule supplied in the bid documents with the Revised Bid Schedule (numbered 22-1R1 thru 22-4R1) in Attachment 4. Bids not submitted on Revised Bid Schedule will be deemed Non-Responsive.

III. PROJECT QUESTIONS AND ANSWERS

1. Will the County accept an electronic bid bond instead of a hard copy?

No, refer to Section IV. Bid Deposit (Bid Bond) of Instructions to Bidders (Yellow Pages).

2. Who would be our contact for scheduling equipment delivery?

Please contact Vu Nguyen, SWMD Project Engineer @ 840-587-2582 or vu.nguyen@dpw.sbcounty.gov

3. For Bid Line Item 12, would the County clarify what will and won’t be salvaged so we can provide an accurate estimate?

Contractor is to assume all equipment and materials in the existing flare station will need to be disposed of, except for the concrete pads/slabs. Please note that the County may elect to keep certain equipment and remove from the existing Flare Station prior to Contractor completing this demolition and disposal work per Line Item 12.

4. The bid proposal checklist and assembly sheets, item 3 on page 3, indicates if we are submitting our bid thru ePro, we should include in our submission the fully executed bid proposal on Yellow Page 6. Does the County mean we should submit the entire Yellow section, which starts on Yellow page 6?

Bidders must submit the pink sheets and yellow sheets, page 3 through page 37, in addition to any additional required documents.

5. Bid line item 77, please clarify what is expected to be completed by the contractor?

Supply all material, equipment, and labor to assist with permitting and provide any special inspections as required by the County (including any Special Inspections for Concrete curing and testing).

6. Field Piping:

a. Bid Line Item 15 has (1) LF in qty. is this accurate?

Quantity should be “LS” or Lump Sum. However, please note that Line Item 15 does include the approximate quantity of piping required (80 LF) in the “Description of Work” column. See revised Bid Schedule, Attachment 4.

b. Bid Line items 16 & 18 have LS unit rates, is this accurate?

Yes, line Items are lump sum packages that includes all the piping, fittings, reducers, and appurtenances required. Each of the line items lists the approximate length of pipe required in LF for estimating purposes in the “Description of Work” column.

7. The flow diagram, d-601, indicate that the existing flare station needs to remain in service until the new flare is fully commissioned. However, the piping drawings do not provide previsions to allow for both the new and existing piping to be in service simultaneously, as the Flow Diagram does.

The existing flare will need to remain in service until the new flare is fully commissioned. A flow diagram is attached Drawing G-003, C-502 and D-601 (Revisions are clouded) Attachment 2. In addition see attached revised Technical Specification Section C01029, Attachment 3.

8. We request installation manuals for all the Owner supplied equipment.

Please find attached the unloading and assembly instructions provided by PEI.

9. Based on the job walk I get the impression that the Owner??s Vendor would be responsible for commissioning their equipment. The specs indicate that we are responsible for commissioning, but if the Owner commissions their supplied equipment our involvement would be limited. Please Clarify.

The County, Design Engineer, CQA, and Flare Equipment Supplier (PEI) will be present during system start-up and testing. During this period, if any components require replacement, repair, adjustment, or similar work, the general contractor and its subcontractors (mechanical/electrical) shall be available to provide assistance, including equipment and labor.

10. What are the weights for the GHS-1 & 2 skids Are Flares #1 & @2 being shipped in one piece, what are the weights? For CAB 401 &402 what are the weights being shipped?

Please find attached the top assemblies of the skids and flares along with the overall layout provided by PEI which includes the weights.

11. Where will the dirt from the pad excavation be taken?

The excavated material will be transported to the bottom of Unit 4, where landfill operations are currently occurring. Contractor shall coordinate with Construction Manager and Landfill Operator.

12. Please confirm the SOV units for bid items 15, 44, 45, and 47.

Quantity is “LS” or “Lump Sum” since each line items contains piping, fittings, reducers, and appurtenances. Please note each line item has the approximate length of piping required in the “Description of Work” column for estimating purposes. No additional compensation, outside of this budgeted line item, will be provided for the referenced piping, fittings, reducers and appurtenances.

13. Are there more ground wells to be installed than the two called out on the plans on sheet E-101 Per Detail 4/E-501?

No, only these two ground wells are required.

14. Please confirm that the contractor is required to provide independent inspection and testing services as specified in Section C01650, Part 1.01(F).

Yes, the contractor is responsible for providing independent inspections and testing services in accordance with CBC and CEC provisions, including any Special Inspections required by the County.

15. Could SWMD please provide the top-of-footing elevations for the two steps in the 12" CMU wing wall located north of the East Wall profile?

As seen on Sheet C-202, the lower top-of-footing elevation before the steps is 1589.00 and the upper top-of-footing elevation after the steps is 1591.00. Assuming a standard riser height of approximately 8 inches, the top-of-footing elevations for the two steps should be 1589.66 and 1590.33, respectively.

16. Is there a plan to simultaneously keep the old flare system running while performing start-up and testing on the new flare system?

Please see question 7 above.

17. Page 11, Section XVII in the Instruction to Bidders references a schedule to be submitted by the Contractor. Is this schedule to be submitted at bid or once the job is awarded?

The schedule is to be provided once the Contract is awarded and once the Notice to Proceed is issued.

If you have any questions, please Pete Ligorria at (909) 386-8701 or you may contact me at

(909) 386-9017.

Johnny Gayman, P.E. Date Chief Engineer

E4635 Johnny Gayman 2024

E4635 Text Box 12/04/2025

ATTACHMENT 1

• Unloading and Assembly Instructions provided by PEI.

• Top assemblies of the skids and flares along with the overall layout provided by PEI which includes the weights.

UNLOADING AND ASSEMBLY INSTRUCTIONS

Please carefully review the packing list upon arrival and notify us of any discrepancies. We request that a signed packing list is returned to us within 48 hours of equipment arrival. If no issues are noted within this time frame we deem that all items are satisfactorily received and accounted for.

The Gas Handling System and Flare are shipped separately along with the interconnection piping and other small components. Upon arrival at the jobsite, a crane or other lifting device will be required to unload and place the unit.

Approximate weights for major equipment:

Gas Handling System 1 (GHS1): 40,000 – 45,000 lbs Gas Handling System (GHS2): 17,000 – 20, 000 lbs Enclosed Flare (FLR1): 62,000 – 65,000 lbs Enclosed Flare (FLR2): 26,000 – 30,000 lbs Combustion Air Blower (FLR-BLR-401): 11,200 – 12,000 lbs Combustion Air Blower (FLR-BLR-402): 2500 – 3000 lbs

Gas Handling System (GHS1 and GHS2) Four lifting points are provided on the skid framework to facilitate unloading of the Gas Handling System (GHS). Lifting from any other points on the system may cause damage to the system.

Spreader bars should be used when lifting to keep from damaging any components, piping, or instrumentation on the GHS. The GHS should be slowly lifted and set on the prepared concrete foundation pad. The GHS mounting feet should be anchored with appropriate, site designed anchor bolts and leveled using shims or grouting. The skid should be level to within 1/8” from foot to foot.

Enclosed Flare (FLR1 and FLR2) The Flare is shipped in a horizontal position. The two lifting points on the top of the flare and two of the flare feet are used when lifting the flare off the shipping trailer. REMOVE THE

PLYWOOD COVER FROM THE TOP OF THE FLARE BEFORE LIFTING TO THE VERTICAL

POSITION. Lift the flare to a vertical position using appropriate lifting equipment connected to the same two lifting points on the top of the flare. The flare should be slowly lifted and set on the prepared concrete foundation pad. The flare mounting feet should be anchored with appropriate, site designed anchor bolts and leveled using shims or grouting. The Burner Head will be packaged for shipment. This package will need to be removed as well.

Smaller components that ship loose from the flare and GHS can now be installed. These include, but are not limited to:

Flame arrester, flex, valves UV Scanner Pilot tile Interconnecting piping Control Panel Sun/Rain Shield

Flame arresters, flexes, and valves will need to be connected to flare as shown in PEI drawings.

Valves should be installed with the actuators in a horizontal orientation.

Pilot tiles will need to be placed in the pilot. Also, the igniter plug should be installed after the pilot tile has been placed into the pilot with the igniter opening facing the igniter port.

The landfill gas piping connections and electrical connections can now be made. In addition, the condensate drain must be connected to a proper condensate collection system. The GHS and Flare should also be properly grounded.

This is a simple overview of the installation requirements of our equipment and does not include other requirements of the installer to provide a complete installation as required in the specifications.

PLAN VIEW

SCALE 1:30

FRONT ELEV. VIEW

SCALE 1:30

RIGHT ELEV. VIEW

SCALE 1:30

ISOMETRIC VIEW

©2021 PERENNIAL ENERGY, LLC

MATERIAL: AS NOTED

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN INCHES

FRACT .XX ANGLES

±1/16 ±.03 ±0°30

DRAWN BY:

A.PARKER

DATE:

8/19/21

DESIGNED BY:

J.WIENHOFF

DATE:

8/19/21

ENGINEERING SIGNATURES

D

SIZE DWG. NO.

TITLE:

PA-001-1132

GAS HANDLING SYSTEM

TOP ASSEMBLY

This Drawing Contains Proprietary Data and May Not Be Duplicated, Copied, Reproduced or Otherwise Used In Any Manner

Not in the Best Interest of Perennial Energy LLC. All Ideas and Concepts Remain the Property of Perennial Energy LLC.

APPLICABLE JOB NO(S).

MID-VALLEY LNEGFS

LTR DESCRIPTION DATE APPROVED

REVISED PER ENGINEERING REVIEW (3/23/22) AP

REVISIONS

SCALE: AS NOTED

FILE NO. PA-001-1132.dwg

SHEET 1 OF 1

www.PerennialEnergy.com

WEST PLAINS, MO 65775

1375 COUNTY ROAD 8690

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EDP-1

SERVICE

ENTRY

NOTE: CONNECT

TO GROUND GRID

CADWELD HERE

NOTE: CONNECT

TO GROUND GRID

CADWELD HERE

SSR-1

PESD

FLT-301

CLASSIFIED AREA

CLASS 1, DIV 2, GROUP D

3FT CLEARANCE FROM GAS PIPE

E/E-1

BLR-303BLR-302BLR-301

n1

TYP

427 [35'-7"]

16 3/8

O V E R A L L

H E I G H T

E/E-1

FLT-301

CP-1

LFG IN

LFG

IN

NOTE:

1. CLASSIFIED AREAS ARE SPECIFICALLY NOTED. ALL OTHER AREAS ARE UNCLASSIFIED.

2. SKIDS MUST BE LEVEL 1/8" SIDE TO SIDE, 1/4" END TO END.

3. CONTACT PERENNIAL ENERGY FOR INTERIM MAINTENANCE PROCEDURES IF EQUIPMENT IS NOT

RUNNING WITHIN 21 DAYS OF ARRIVAL ON SITE.

4. REMOVE SHIPPING STANDS, BRACES, AND COVERS PRIOR TO INSTALLATION.

5. UNLESS OTHERWISE NOTED, USE ON GAS WITH MORE THAN 1500 PPM, H2S VOIDS WARRANTY.

6. BLOWERS 50HP AND ABOVE MUST HAVE SKID FRAME RAILS UNDER THE BLOWER SOLIDLY

SHIMMED OR GROUTED TO A SUITABLE CONCRETE PAD.

7. TOP ASSEMBLY DIMENSIONS SHOWN ARE NOT ACTUAL SHIPPING DIMENSIONS, CONFIRM FIELD

DIMENSIONS PRIOR TO ORDERING THE PROPER SHIPPING PERMITS.

8. ALL FLANGES ARE 125# GALVANIZED DUCTILE IRON SLIP FLANGES WITH ZINC PLATED FASTENERS.

WEIGHT: 40,000-45,000 ESTIMATED

CP-1

AC-2AC-1

TYP

TYP

SKID MOUNTING

CLAMP PLATE

COG

C O G

COG

COG

J B O X

FOOT PLAN

SCALE 1:20

TYPICAL SECTION

THRU LIFTING LUG

SCALE 1:8

PLAN VIEW

SCALE 1:25

©2021 PERENNIAL ENERGY, LLC

MATERIAL: AS NOTED

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN INCHES

FRACT .XX ANGLES

±1/16 ±.03 ±0°30

DRAWN BY:

A.PARKER

DATE:

9/8/21

DESIGNED BY:

J.WIENHOFF

DATE:

9/8/21

ENGINEERING SIGNATURES

D

SIZE DWG. NO.

TITLE:

PA-001-1137

FLARE TOP ASSEMBLY

164" OD X 612" TALL

This Drawing Contains Proprietary Data and May Not Be Duplicated, Copied, Reproduced or Otherwise Used In Any Manner

Not in the Best Interest of Perennial Energy LLC. All Ideas and Concepts Remain the Property of Perennial Energy LLC.

APPLICABLE JOB NO(S).

MID-VALLEY LNEGFS

LTR DESCRIPTION DATE APPROVED

REVISED PER ENGINEERING REVIEW (12/9/21) DS

REVISIONS

SCALE: AS NOTED

FILE NO. PA-001-1137.dwg

SHEET 1 OF 2

www.PerennialEnergy.com

WEST PLAINS, MO 65775

1375 COUNTY ROAD 8690

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179 5/8

87 5/8

45° 45° n2 THRU

TYP(8)

n164 OD

FLARE SHELL

n171 7/8 BHC

FLARE ROLLED RING

LIFT LUG

FLARE RAIN SHIELD

FLARE SHELL

INSULATION

FLARE TRIM RING

GROUND TAB

NOTE:

CONNECT TO

GROUND GRID

CADWELD HERE

AP-2

FCV-403

FCV-402

AP-3

FCV-401

4 3/8

TYP

AP-1

AP-4

FCV-404

TE-501..3

FX-301

WEIGHT: 62,000-65,000 LBS ESTIMATED

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ELEVATION VIEWS

SCALE 1:50

AIR BLOWER VIEWS

SCALE 1:40

ISOMETRIC VIEWS

SCALE 1:70

©2021 PERENNIAL ENERGY, LLC

MATERIAL: AS NOTED

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN INCHES

FRACT .XX ANGLES

±1/16 ±.03 ±0°30

DRAWN BY:

A.PARKER

DATE:

9/8/21

DESIGNED BY:

J.WIENHOFF

DATE:

9/8/21

ENGINEERING SIGNATURES

D

SIZE DWG. NO.

TITLE:

PA-001-1137

FLARE TOP ASSEMBLY

164" OD X 612" TALL

This Drawing Contains Proprietary Data and May Not Be Duplicated, Copied, Reproduced or Otherwise Used In Any Manner

Not in the Best Interest of Perennial Energy LLC. All Ideas and Concepts Remain the Property of Perennial Energy LLC.

APPLICABLE JOB NO(S).

MID-VALLEY LNEGFS

LTR DESCRIPTION DATE APPROVED

REVISED PER ENGINEERING REVIEW (12/9/21) DS

REVISIONS

SCALE: AS NOTED

FILE NO. PA-001-1137.dwg

SHEET 2 OF 2

www.PerennialEnergy.com

WEST PLAINS, MO 65775

1375 COUNTY ROAD 8690

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BG-506

AP-1

FCV-401

BG-504

164Ø

9 1/2

AP-2

FCV-402

36" MANWAY

BG-508

BG-507

AP-3

FCV-403

BG-505

BG-503

TE-501

TE-502

TE-503

BG-502

BG-501

T Y P

AP-4

FCV-404

188 5/8

94 1/2

10 5/8

COG

SCALE 1:20

FOOT PLAN

SCALE 1:20

TYPICAL SECTION THRU LIFTING LUG

SCALE 1:10

SCALE 1:20

©2021 PERENNIAL ENERGY, LLC

MATERIAL: AS NOTED

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN INCHES

FRACT .XX ANGLES

±1/16 ±.03 ±0°30

DRAWN BY:

A.PARKER

DATE:

12/9/21

DESIGNED BY:

J.WIENHOFF

DATE:

12/9/21

ENGINEERING SIGNATURES

D

SIZE DWG. NO.

TITLE:

PA-001-1141

FLARE TOP ASSEMBLY

92" OD X 420" TALL

This Drawing Contains Proprietary Data and May Not Be Duplicated, Copied, Reproduced or Otherwise Used In Any Manner

Not in the Best Interest of Perennial Energy LLC. All Ideas and Concepts Remain the Property of Perennial Energy LLC.

APPLICABLE JOB NO(S).

MID-VALLEY LNEGFS

LTR DESCRIPTION DATE APPROVED

REVISED PER ENGINEERING REVIEW (12/10/21) AP

REVISIONS

SCALE: AS NOTED

FILE NO. PA-001-1141.dwg

SHEET 1 OF 2

www.PerennialEnergy.com

WEST PLAINS, MO 65775

1375 COUNTY ROAD 8690

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WEIGHT: 26,000-30,000 LBS ESTIMATED

LADDER

45°

90° n92

FLARE

SHELL

n101 5/16

BHC

n1 1/2

THRU

FLARE INSULATION

RETAINER BAND

FLARE SHELL

FLARE RAIN SHIELD

INSULATION

FLARE TRIM RING

LIFT LUG

GROUND TAB

NOTE:

CONNECT TO

GROUND GRID

CADWELD HERE

BURNER INLET

FCV-406

TSE-302

FX-302

FV-302

8" 150# FLANGE

CONNECTION

FCV-405

36 1/4

108 3/4

45°

ELEVATION VIEWS

SCALE 1:36

ISO VIEWS

SCALE 1:50

AIR BLOWER VIEWS

SCALE 1:40

©2021 PERENNIAL ENERGY, LLC

MATERIAL: AS NOTED

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN INCHES

FRACT .XX ANGLES

±1/16 ±.03 ±0°30

DRAWN BY:

A.PARKER

DATE:

12/9/21

DESIGNED BY:

J.WIENHOFF

DATE:

12/9/21

ENGINEERING SIGNATURES

D

SIZE DWG. NO.

TITLE:

PA-001-1141

FLARE TOP ASSEMBLY

92" OD X 420" TALL

This Drawing Contains Proprietary Data and May Not Be Duplicated, Copied, Reproduced or Otherwise Used In Any Manner

Not in the Best Interest of Perennial Energy LLC. All Ideas and Concepts Remain the Property of Perennial Energy LLC.

APPLICABLE JOB NO(S).

MID-VALLEY LNEGFS

LTR DESCRIPTION DATE APPROVED

REVISED PER ENGINEERING REVIEW (12/10/21) AP

REVISIONS

SCALE: AS NOTED

FILE NO. PA-001-1141.dwg

SHEET 2 OF 2

www.PerennialEnergy.com

WEST PLAINS, MO 65775

1375 COUNTY ROAD 8690

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FCV-401

FCV-402

47 1/2

79 1/8

T Y P

7 1/4

36" MANWAY

30" MANWAY

BG-515

BG-516

BG-512

TE-504

TE-505

TE-506

BG-511

BG-514

AP-6

AP-7

AP-8

AP-5

C.O.G.

BG-513

BG-509

BG-510

FRONT ELEVATION VIEW

SCALE 1:24

PLAN VIEW

SCALE 1:24

RIGHT ELEVATION VIEW

SCALE 1:24

ISOMETRIC VIEW

SCALE 1:20

©2021 PERENNIAL ENERGY, LLC

MATERIAL: AS NOTED

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN INCHES

FRACT .XX ANGLES

±1/16 ±.03 ±0°30

DRAWN BY:

A.PARKER

DATE:

10/27/21

DESIGNED BY:

J.WIENHOFF

DATE:

10/27/21

ENGINEERING SIGNATURES

D

SIZE DWG. NO.

TITLE:

PA-001-1153

COMBUSTION AIR BLOWER

401 TOP ASSEMBLY

This Drawing Contains Proprietary Data and May Not Be Duplicated, Copied, Reproduced or Otherwise Used In Any Manner

Not in the Best Interest of Perennial Energy LLC. All Ideas and Concepts Remain the Property of Perennial Energy LLC.

APPLICABLE JOB NO(S).

MID-VALLEY LNEGFS

LTR DESCRIPTION DATE APPROVED

REVISED PER ENGINEERING REVIEW (12/9/21) DS

REVISIONS

SCALE: AS NOTED

FILE NO. PA-001-1153.dwg

SHEET 1 OF 1

www.PerennialEnergy.com

WEST PLAINS, MO 65775

1375 COUNTY ROAD 8690

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NOTE:

1. CLASSIFIED AREAS ARE SPECIFICALLY NOTED. ALL OTHER AREAS ARE UNCLASSIFIED.

2. SKIDS MUST BE LEVEL 1/8" SIDE TO SIDE, 1/4" END TO END.

3. CONTACT PERENNIAL ENERGY FOR INTERIM MAINTENANCE PROCEDURES IF EQUIPMENT IS NOT

RUNNING WITHIN 21 DAYS OF ARRIVAL ON SITE.

4. REMOVE SHIPPING STANDS, BRACES, AND COVERS PRIOR TO INSTALLATION.

5. UNLESS OTHERWISE NOTED, USE ON GAS WITH MORE THAN 1500 PPM, H2S VOIDS WARRANTY.

6. BLOWERS 50HP AND ABOVE MUST HAVE SKID FRAME RAILS UNDER THE BLOWER SOLIDLY

SHIMMED OR GROUTED TO A SUITABLE CONCRETE PAD.

7. TOP ASSEMBLY DIMENSIONS SHOWN ARE NOT ACTUAL SHIPPING DIMENSIONS, CONFIRM FIELD

DIMENSIONS PRIOR TO ORDERING THE PROPER SHIPPING PERMITS.

8. DO NOT USE THIS DRAWING FOR LOCATION OF CAST IN PLACE ANCHORS.

1/2

1/2

94 1/2

6 1/2

REF

14 3/4

REF

196 1/8

193 1/8

96 5/16

1 1/2 n16) TYP

1 1/2

73 1/4

93 5/16

3 13/16

25 11/16

COG

1 1/16

COG

WEIGHT: 11,200-12,000 LBS (ESTIMATED)

SCALE 1:10

RIGHT ELEVATION VIEW

SCALE 1:10

PLAN VIEW

SCALE 1:10

ISOMETRIC VIEW

SCALE 1:10

©2021 PERENNIAL ENERGY, LLC

MATERIAL: AS NOTED

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN INCHES

FRACT .XX ANGLES

±1/16 ±.03 ±0°30

DRAWN BY:

A.PARKER

DATE:

10/28/21

DESIGNED BY:

J.WIENHOFF

DATE:

10/28/21

ENGINEERING SIGNATURES

D

SIZE DWG. NO.

TITLE:

PA-001-1154

COMBUSTION AIR BLOWER

402 TOP ASSEMBLY

This Drawing Contains Proprietary Data and May Not Be Duplicated, Copied, Reproduced or Otherwise Used In Any Manner

Not in the Best Interest of Perennial Energy LLC. All Ideas and Concepts Remain the Property of Perennial Energy LLC.

APPLICABLE JOB NO(S).

MID-VALLEY LNEGFS

LTR DESCRIPTION DATE APPROVED

REVISED PER ENGINEERING REVIEW (12/10/21) AP

REVISIONS

SCALE: AS NOTED

FILE NO. PA-001-1154.dwg

SHEET 1 OF 1

www.PerennialEnergy.com

WEST PLAINS, MO 65775

1375 COUNTY ROAD 8690

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U

C

E

D

NOTE:

1. CLASSIFIED AREAS ARE SPECIFICALLY NOTED. ALL OTHER AREAS ARE UNCLASSIFIED.

2. SKIDS MUST BE LEVEL 1/8" SIDE TO SIDE, 1/4" END TO END.

3. CONTACT PERENNIAL ENERGY FOR INTERIM MAINTENANCE PROCEDURES IF EQUIPMENT IS NOT

RUNNING WITHIN 21 DAYS OF ARRIVAL ON SITE.

4. REMOVE SHIPPING STANDS, BRACES, AND COVERS PRIOR TO INSTALLATION.

5. UNLESS OTHERWISE NOTED, USE ON GAS WITH MORE THAN 1500 PPM, H2S VOIDS WARRANTY.

6. BLOWERS 50HP AND ABOVE MUST HAVE SKID FRAME RAILS UNDER THE BLOWER SOLIDLY

SHIMMED OR GROUTED TO A SUITABLE CONCRETE PAD.

7. TOP ASSEMBLY DIMENSIONS SHOWN ARE NOT ACTUAL SHIPPING DIMENSIONS, CONFIRM FIELD

DIMENSIONS PRIOR TO ORDERING THE PROPER SHIPPING PERMITS.

8. DO NOT USE THIS DRAWING FOR LOCATION OF CAST IN PLACE ANCHORS.

47 1/2

3/4 3/4

14 3/4

REF

35 1/4

4 3/8

79 1/8

14 3/4

REF

1 3/16

1 3/16 n5/8 TYP

WEIGHT: 2,500-3,000 LBS ESTIMATED

18 5/8

C.O.G.

6 7/16

26 11/16

5/16

15/16

C.O.G.

FRONT ELEV. VIEW

SCALE 1:30

RIGHT ELEV. VIEW

SCALE 1:30

ISOMETRIC VIEW

SCALE 1:30

©2022 PERENNIAL ENERGY, LLC

MATERIAL: AS NOTED

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN INCHES

FRACT .XX ANGLES

±1/16 ±.03 ±0°30

DRAWN BY:

A.PARKER

DATE:

1/17/22

DESIGNED BY:

J.WIENHOFF

DATE:

1/17/22

ENGINEERING SIGNATURES

D

SIZE DWG. NO.

TITLE:

PA-001-1169

GAS HANDLING SYSTEM

TOP ASSEMBLY [GHS2]

This Drawing Contains Proprietary Data and May Not Be Duplicated, Copied, Reproduced or Otherwise Used In Any Manner

Not in the Best Interest of Perennial Energy LLC. All Ideas and Concepts Remain the Property of Perennial Energy LLC.

APPLICABLE JOB NO(S).

MID-VALLEY LNEGFS

LTR DESCRIPTION DATE APPROVED

REVISED PER ENGINEERING REVIEW (3/23/22) AP

REVISIONS

SCALE: AS NOTED

FILE NO. PA-001-1169.dwg

SHEET 1 OF 1

www.PerennialEnergy.com

WEST PLAINS, MO 65775

1375 COUNTY ROAD 8690

A M

I

M i d V a l l e y

L N E G F S P A d

P A R K E R

S

I

Z

E

F

R

I

G

I

N

A

L

R

E

D

U

C

E

D

LFG IN

NOTE:

1. CLASSIFIED AREAS ARE SPECIFICALLY NOTED. ALL OTHER AREAS ARE UNCLASSIFIED.

2. SKIDS MUST BE LEVEL 1/8" SIDE TO SIDE, 1/4" END TO END.

3. CONTACT PERENNIAL ENERGY FOR INTERIM MAINTENANCE PROCEDURES IF EQUIPMENT IS NOT

RUNNING WITHIN 21 DAYS OF ARRIVAL ON SITE.

4. REMOVE SHIPPING STANDS, BRACES, AND COVERS PRIOR TO INSTALLATION.

5. UNLESS OTHERWISE NOTED, USE ON GAS WITH MORE THAN 1500 PPM, H2S VOIDS WARRANTY.

6. BLOWERS 50HP AND ABOVE MUST HAVE SKID FRAME RAILS UNDER THE BLOWER SOLIDLY

SHIMMED OR GROUTED TO A SUITABLE CONCRETE PAD.

7. TOP ASSEMBLY DIMENSIONS SHOWN ARE NOT ACTUAL SHIPPING DIMENSIONS, CONFIRM FIELD

DIMENSIONS PRIOR TO ORDERING THE PROPER SHIPPING PERMITS.

8. ALL FLANGES ARE 125# GALVANIZED DUCTILE IRON SLIP FLANGES WITH ZINC PLATED FASTENERS.

CP-2

AC-3

11 13/16

342 [28'-6"]

79 98

BLR-304

R E F

O V E R A L L

PMP-702

PMP-701

NOTE: CONNECT

TO GROUND GRID

CADWELD HERE

NOTE: CONNECT

TO GROUND GRID

CADWELD HERE

LFG IN

CP-2

BLR-305 BLR-306

WEIGHT: 17,000-20,000 ESTIMATED

60 1/2

COG

COG

COG

43 7/8

COG

183 3/8

COG

SCALE 1:80

PLAN VIEW

SCALE 1:80

ISOMETRIC VIEW

SCALE 1:90

©2022 PERENNIAL ENERGY, LLC

MATERIAL: AS NOTED

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN INCHES

FRACT .XX ANGLES

±1/16 ±.03 ±0°30

DRAWN BY:

A.PARKER

DATE:

1/21/22

DESIGNED BY:

J.WIENHOFF

DATE:

1/21/22

ENGINEERING SIGNATURES

D

SIZE DWG. NO.

TITLE:

OS-009-0277

OVERALL SITE

LAYOUT

This Drawing Contains Proprietary Data and May Not Be Duplicated, Copied, Reproduced or Otherwise Used In Any Manner

Not in the Best Interest of Perennial Energy LLC. All Ideas and Concepts Remain the Property of Perennial Energy LLC.

APPLICABLE JOB NO(S).

MID-VALLEY LNEGFS

LTR DESCRIPTION DATE APPROVED

REVISED PER ENGINEERING REVIEW (10/9/24) DS

REVISIONS

SCALE: AS NOTED

FILE NO. OS-009-0277.dwg

SHEET 1 OF 1

www.PerennialEnergy.com

WEST PLAINS, MO 65775

1375 COUNTY ROAD 8690

A M

O A C A D F

M i d V a l l e y

L N E G F S O S d

P A R K E R

S

I

Z

E

F

R

I

G

I

N

A

L

R

E

D

U

C

E

D

NOTE:

1. CLASSIFIED AREAS ARE SPECIFICALLY NOTED. ALL OTHER AREAS ARE UNCLASSIFIED.

2. SKIDS MUST BE LEVEL 1/8" SIDE TO SIDE, 1/4" END TO END.

3. CONTACT PERENNIAL ENERGY FOR INTERIM MAINTENANCE PROCEDURES IF EQUIPMENT IS NOT

RUNNING WITHIN 21 DAYS OF ARRIVAL ON SITE.

4. REMOVE SHIPPING STANDS, BRACES, AND COVERS PRIOR TO INSTALLATION.

5. UNLESS OTHERWISE NOTED, USE ON GAS WITH MORE THAN 1500 PPM, H2S VOIDS WARRANTY.

6. BLOWERS 50HP AND ABOVE MUST HAVE SKID FRAME RAILS UNDER THE BLOWER SOLIDLY

SHIMMED OR GROUTED TO A SUITABLE CONCRETE PAD.

7. TOP ASSEMBLY DIMENSIONS SHOWN ARE NOT ACTUAL SHIPPING DIMENSIONS, CONFIRM FIELD

DIMENSIONS PRIOR TO ORDERING THE PROPER SHIPPING PERMITS.

8. DO NOT USE THIS DRAWING FOR LOCATION OF CAST IN PLACE ANCHORS.

1275 [106'-3"]

57 3/8

70 1/2

(79)

GHS1

GHS2

FLR2

FLR1

NOTE: SHOWN FOR SIZE REF ONLY

ATTACHMENT 2

Flow Diagram

DEMOLITION/SALVAGE/RELOCATION CONSTRUCTION NOTES (PER SHEET C-101/C-102)

RELOCATE SEWAGE TANK AND DRAIN LINE TO FLARE STATION

RELOCATE PORTABLE STAIR CASES

REMOVE/DEMO 6' HIGH CHAIN LINK FENCE WITH 3-STRAND BARBED WIRE, GATES

RELOCATE CARGO AND STORAGE CONTAINERS, VARIOUS SIZES AND WEIGHTS PER PLAN

REMOVE/DEMO EXISTING CONCRETE SLABS/FOOTINGS (THICKNESS VARIES) AND CONDUITS

RELOCATE STORAGE CONTAINER TO FLARE STATION OR AREA DESIGNATED BY COUNTY

PROTECT EXISTING STRUCTURE/PIPE IN PLACE

DESCRIPTION# QTY (OR APPROVED EQUAL) REFERENCE NOTES

RELOCATE COUNTY OPERATION'S TRAILER (12' X 40') TO FLARE STATION 1 EA EXISTING SEE C-101/M-101 CONNECT ALL UILITIES

1 EA EXISTING SEE C-101/M-101 CONNECT WITH 3" LINE TO TRAILER

3 EA EXISTING SEE C-101/M-101 -

5 EA EXISTING SEE C-101/M-101 -

1 EA EXISTING SEE C-101/M-101 AFTER NEW FLARE STATION IS OPERATIONAL

AS REQ'D EXISTING SEE C-102 PREVIOUS POWER PLANT CONDUITS NOT SHOWN

400 LF EXISTING SEE C-102 -

4 EA EXISTING SEE C-102/M-101 -

AS REQ'D - SEE C-102/C502

AS REQ'D - - -

120 LF - -

IF ENCOUNTERED DURING GRADING/EARTHWORK

AS REQ'D EXISTING

30 LF EXISTING - -

SUPPLIER OR MFR. DETAIL/SHEET

PART NO.

MODEL OR

EXISTING

EXISTING

EXISTING

EXISTING

EXISTING

EXISTING

EXISTING

2 EA - -

EXISTING

EXISTING

EXISTING

EXISTING

REMOVE EXISTING 24" STORM DRAIN LINE/BURIED HEADWALL11

PLUG/GROUT END OF EXISTING 24" STORM DRAIN LINE12

SAWCUT AND REMOVE SECTION OF AC BERM14

INSTALL 12" CONCRETE AROUND OUTLET GRATE

- -20 LF ISCO INDUSTRIES - -

4 EA ISCO INDUSTRIES - GHS-1/GHS-2 DRAIN AND SUMP BALANCE LINES

10 EA GRAINGER PER DETAIL 1/C-302 GHS-2 DRAIN LINE CONNECTION

8 EA PER DETAIL 8/C-501 -

SITE IMPROVEMENTS/GRADING/FIELD PIPING CONSTRUCTION NOTES (C-103, C-301, C-302, C-501, C-502, C-503)

CONSTRUCT 6" AC PAVEMENT OVER 12" CLASS 2 BASE

CONSTRUCT 6" THICK CONCRETE V-DITCH, APPROX. 5' WIDE, DEPTH VARIES

INSTALL 6" ATRIUM STYLE INLET GRATE

INSTALL 6" SINGLE WALL DRAIN PIPE, HDPE

SAWCUT AND REMOVE AC PAVEMENT SECTION

9,550 SF CONTRACTOR OR SUB SEE DWG C-103/C-105

11 CY CONTRACTOR OR SUB SEE DETAIL 2/C-501 WITH 6x6 W1.4/1.4 WWM

100 LF ADVANCED DRAINAGE SYS SEE DWG C-103 DRAINAGE SWALE DRAIN PIPE

1 EA LOCAL SUPPLIER SEE DWG C-103 V-DITCH INLET STRUCTURE

2,000 SF CONTRACTOR OR SUB SEE DWG C-103/C-105 SEE DETAILS 6 & 7/C-501

PER PLAN

PER PLAN

INSTALL 1" SDR 11 HDPE PIPE & FITTINGS

INSTALL 2" HDPE SADDLE

INSTALL 2" SS CHECK VALVE, Y SPRING TYPE

INSTALL 6" STEEL BOLLARD AND PLASTIC SLEEVE

6 EA --61 INSTALL 2" X 1" HDPE REDUCER

6 EA --62 INSTALL 1" HDPE TO SS TRANSITION FITTING

6 EA --63 INSTALL 1" SS COUPLING

2 EA --64 INSTALL 1" X 3/4" SS REDUCER BUSHING

4 EA --65 INSTALL 1" X 1/2" SS REDUCER BUSHING

66 INSTALL 3/4" SS PIPE NIPPLE

CUSTOM

ISCO INDUSTRIES

ISCO INDUSTRIES

GRAINGER

GRAINGER

GRAINGER

GRAINGER2 EA

67 INSTALL 1/2" SS PIPE NIPPLE

68 INSTALL 4" X 2" HDPE D/C TERMINATION FITTING

69 INSTALL 8" X 4" HDPE D/C TERMINATION FITTING

GRAINGER4 EA --

ISCO INDUSTRIES6 EA --

ISCO INDUSTRIES6 EA --

ISCO INDUSTRIES6 EA --

ISCO INDUSTRIES6 EA --

72 INSTALL 4" HDPE BALL VALVE, BUTT X BUTT ISCO INDUSTRIES1 EA --

SUMP CONNECTION AND SUMP BALANCE LINES

SUMP CONNECTION

SUMP CONNECTION

SUMP LIQUID DISCHARGE CONNECTION

SUMP AIR & BALANCE LINE CONNECTION

4" CONDENSATE LINE CLEAN-OUT

73 INSTALL 30" SDR 17 HDPE PIPE ISCO INDUSTRIES80 LF SEE DETAIL 6/C-501-

74 INSTALL 30" HDPE FLANGE ADAPTER, D.I. BACK-UP RING, AND HARDWARE ISCO INDUSTRIES3 ASSY --

INSTALL 30" X 24" HDPE REDUCER

ISCO INDUSTRIES

2 EA

INSTALL 24" X 18" HDPE REDUCER

ISCO INDUSTRIES

2 EA

INSTALL 18" X 12" HDPE REDUCER

ISCO INDUSTRIES

4 EA

INSTALL 18" SDR 17 HDPE PIPE

ISCO INDUSTRIES

100 LF

INSTALL 18" HDPE FLANGE ADAPTER, D.I. BACK-UP RING, AND HARDWARE

ISCO INDUSTRIES

4 EA

INSTALL 18" HDPE ELBOW, 90°, SDR 17

ISCO INDUSTRIES

2 EA

SEE DETAIL 7/C-501-

81 ISCO INDUSTRIES --

82 ISCO INDUSTRIES --

INSTALL 30" HDPE TEE, SDR 17

INSTALL 30" HDPE ELBOW, 90°, SDR 17 2 EA

1 EA

INSTALL 2" SDR 11 HDPE x 4" SDR 17 HDPE DUAL CONTAINED PIPE & FITTINGS 140 LF83 ISCO INDUSTRIES -

INSTALL 4" SDR 11 HDPE x 8" SDR 17 HDPE DUAL CONTAINED PIPE & FITTINGS 220 LF84 ISCO INDUSTRIES -

INSTALL SALVAGED 12" BUTTERFLY VALVE 2 EA85 - -

(DELETED) -86 - -

SEE DETAILS 6 & 7/C-501

INSTALL 24" SDR 17 HDPE PIPE

INSTALL 12" SDR 17 HDPE PIPE

INSTALL 2" SDR 9 HDPE PIPE & FITTINGS

INSTALL 2" SDR 11 HDPE PIPE & FITTINGS

INSTALL 1 1/2" DOUBLE CHECK VALVE ASSEMBLY PER SAN BERNARDINO COUNTY STANDARDS

100 LF ISCO INDUSTRIES

20 LF ISCO INDUSTRIES

200 LF ISCO INDUSTRIES

40 LF ISCO INDUSTRIES

1 ASSY

SEE DETAIL 10/C-501 UNIT #4 HEADER

- INLET TO GHS-2

- COMPRESSED AIR LINE

- CONDENSATE FORCEMAIN

INSTALL 24" BUTTERFLY VALVE WITH 3' VALVE EXTENSION AND GEAR OPERATOR 1 ASSY -

INSTALL 24" HDPE TEE, SDR 17 1 EA ISCO INDUSTRIES -

INSTALL 24" HDPE ELBOW, 90°, SDR 17 2 EA ISCO INDUSTRIES -

INSTALL 24" HDPE FLANGE ADAPTER, D.I. BACK-UP RING, GASKET, AND BOLT KIT 5 EA ISCO INDUSTRIES -

INSTALL 24" PVC BLIND FLANGE 1 EA ISCO INDUSTRIES UNIT #4 HEADER

5 EA CUSTOM SEE DETAIL 2/C-502 SUMP OUTLET PIPING

3 EA ISCO INDUSTRIES -

4 EA ISCO INDUSTRIES -

550 LF - WATER LINE FOR SWMD TRAILER

INSTALL 2" HDPE BALL VALVE, BUTT X BUTT 11 EA ISCO INDUSTRIES CONDENSATE FORCEMAIN, 2" CLEAN-OUT

JOIN EXISTING 6" WATER LINE PER SAN BERNARDINO COUNTY STANDARDS 1 EA - SEE DETAIL 2/C-503 -

SEE WALL PROFILES, C-201/C-202

INSTALL 2" HDPE TO STAINLESS STEEL TRANSITION FITTING (BUTT x MPT) 20 EA ISCO INDUSTRIES SEE DETAIL 1/C-301/302 CONDENSATE FORCEMAIN CHECK VALVES

1 ASSY REAL ENV. PRODUCTS SEE DWG C-301/D-601 -

INSTALL CONDENSATE SUMP ASSEMBLY "B", SERIES 7000 SUMP, 18" X 24" DUAL CONTAINED 1 ASSY REAL ENV. PRODUCTS SEE DWG C-302/D-601 -

SITE IMPROVEMENTS/GRADING/FIELD PIPING CONSTRUCTION NOTES (C-103, C-104. C-301, C-302, C-501, C-502)

ISCO INDUSTRIES

INSTALL PIPE SUPPORT, CONCRETE FOOTING AND SIGN

INSTALL 12" HDPE ELBOW, 90°, SDR 17

INSTALL 12" HDPE FLANGE ADAPTER, D.I, BACK-UP RING, GASKET, AND BOLT KIT

INSTALL 1 1/2" CLASS 150 PVC WATER PIPE & FITTINGS

SEE SHEET C-503

PER PLAN

PER PLAN

JOIN EXISTING AS REQ'D -

INSTALL 6" AC BERM

GRADE AREA TO CONTOURS SHOWN (PRIMARILY CUT TO INSTALL FOOTINGS & WALLS)

55 LF CONTRACTOR OR SUB SEE DWG C-103

PER PLAN CONTRACTOR OR SUB SEE DWG C-103

1 EA ISCO INDUSTRIES

- -4 EA

COORDINATE WITH COUNTY/SCE

PER PLAN

AS REQ'D -

INSTALL CONDENSATE SUMP ASSEMBLY "A", SERIES 7000 SUMP, 30" X 36" DUAL CONTAINED

EXISTING HIGH VOLTAGE POWER POLE(S) TO BE REMOVED BY OTHERS

SEE DETAIL 3/C-503

INSTALL 12" BUTTERFLY VALVE, SS DISK & INTERNALS, VITON OR TEFLON SEALS

INSTALL 12" 22 1/2° HDPE ELBOW, SDR 17

SEE SUMP "A" AND GHS-1 INLET PIPING PROFILE

SEE SUMP "B" AND GHS-2 INLET PIPING PROFILE

SEE DETAIL 1/C-301

SEE DETAIL 1/C-302

INSTALL 4" X 2" HDPE REDUCER, SDR 11 5 EA ISCO INDUSTRIES

DESCRIPTION# QTY (OR APPROVED EQUAL) REFERENCE NOTES

SUPPLIER OR MFR. DETAIL/SHEET

PART NO.

MODEL OR

DESCRIPTION# QTY (OR APPROVED EQUAL) REFERENCE NOTES

SUPPLIER OR MFR. DETAIL/SHEET

PART NO.

MODEL OR

CONDENSATE FORCEMAIN

SUMP AIR & BALANCE LINE CONNECTION

SUMP LIQUID DISCHARGE CONNECTION

INSTALL 4" X 2" HDPE D/C 45° WYE FITTING

INSTALL 8" X 4" HDPE D/C 45° WYE FITTING

ESTIMATED

ESTIMATED

INSTALL 1 1/2" CLASS 150 PVC BALL VALVE, NSF/ANSI 61 STANDARD AND HOSE BIB 1 ASSY87 HAYWARD OR EQUAL -

INSTALL WATER LINE THRUST BLOCK88 2 EA - - SEE DETAIL 1/C-503

REMOVE/SALVAGE EXISTING SUMP, VALVES, PIPE, AND FITTINGS AFTER NEW FLARE STATION IS OPERATIONAL

INSTALL 6" MITERED DRAINAGE GRATE (JOIN WITH FERNCO COUPLING) 1 EA DRAINAGE SOLUTIONS 6MD3P

RELOCATE EXISTING FLARE STATION O&M TRAILER TO NEW FLARE STATION COMPOUND

DEMOLITION AND DISPOSAL OF THE EXISTING FLARE STATION: INCLUDES ALL CONCRETE

SLABS, FOOTINGS, WALLS, FENCING, FLARE STACKS, INTERCONNECT GAS SYSTEM PIPING

AND FITTINGS (ABOVE AND BELOW GRADE), PIPE SUPPORTS AND FOOTINGS,

INSTRUMENTATION, COMPRESSORS, COMPRESSED AIR LINES (ABOVE AND BELOW GRADE),

CONDENSATE DRAIN LINES (ABOVE AND BELOW GRADE), CONDENSATE INJECTION SYSTEM

(ABOVE AND BELOW GRADE), FLARE PILOT FUEL SYSTEM (PROPANE, ABOVE AND BELOW

GRADE), CONDENSATE STORAGE TANK, PUMPS, BLOWERS, KNOCK-OUT VESSEL, VALVES,

ELECTRICAL PANELS, CONDUITS (ABOVE AND BELOW GRADE), WIRING, AND SWITCHGEAR

AS DIRECTED BY THE COUNTY. SALVAGE BLOWERS AND ANY OTHER ITEMS AT THE

DISCRETION OF THE COUNTY.

REMOVAL OF EQUIPMENT FROM FLARE STATION

SHALL BE COMPLETED AFTER THE NEW FLARE

STATION IS OPERATIONAL, INCLUDING SOURCE

TESTING. THE COUNTY WILL DETERMINE IF ANY

OF THE EXISTING FLARE STATION EQUIPMENT IS

SALVAGEABLE FOR COUNTY PURPOSES PRIOR

TO DISPOSAL/REMOVAL. THE COUNTY WILL

ASSIGN AN AREA NEAR THE FLARE STATION FOR

EQUIPMENT STORAGE.

SEE SHEET C-102 FOR

EXISTING FLARE

STATION AREA

AS REQ'D EXISTING - --

EXISTING TELEPHONE LINE TO BE REMOVED FROM POWER POLE BY OTHERS15

INSTALL 12" HDPE TEE89 4 EA ISCO INDUSTRIES - -

DEMOLITION/SALVAGE/

SITE IMPROVEMENTS

CONSTRUCTION NOTES

G-003 NONE

A P

P R

R

E V

I S

I O

N S

M A

R K

D A

T E

A P

P R

R

E V

I S

I O

N S

DESIGNED BY

DRAWN BY PROJ. ENGR.

DEPARTMENT OF PUBLIC WORKS

SUBMITTED BY

TOT. SHT'S.

SAN BERNARDINO COUNTY

SHT. NO.

SCALE

DWG NO.DATE

RECOMMENDED / APPROVED BY

M A

R K

D A

T E

DATE

SAMI H AYASS

PREPARED UNDER THE SUPERVISION OF:

DATECHIEF ENGINEER

DEPUTY DIRECTOR DATEPROJECT MANAGER DATE 6/2025 42

MID-VALLEY SANITARY LANDFILL

SNA/SHA SHA

LANDFILL GAS FLARE STATION

21700 Copley Drive, Suite 200 Diamond Bar, CA 91765

TEL 909.860.7777 FAX 909.860.8017

H d w g

S b s w m d

M i d

V a l l e y F l a r e

S t a t i o n

D

W G

S

G

V d s c o t t a n g u s

SNA

P

R

O

S

I

O

T

E

R G

E

I

S

C84806

C

I

VI

L

R

E

D

E R

N

N

E

G

I

L

A

N

E

S

F

E

A

M

A

S

I

H A

Y

S

S

S

T

A

F

CA

I

F

O

R

N

I

A

06/18/2025

06/18/2025SAMI H AYASS

A

D D

D

E M

S

M

P O

R A

R Y

C O

N N

E C

T I O

N

T

O

E

X I S

T I N

G P

R O

P O

S E

D

H

A

NTS

PIPING PLAN1

REFERENCE SHEET: C-103

TOP OF FLANGE=1586.0

24" INV=1579.0 (WEST)

TOP OF FLANGE=1586.0

18" INV=1581.0 (WEST)

18" INV=1575.0 (EAST)

TYP 10 PLACES

EXISTING 2" x 4" HDPE

DUAL CONTAINED

CONDENSATE

FORCEMAIN FROM

TEMPORARY SUMP

AND UNIT #4

EXISTING 2" HDPE

COMPRESSED AIR LINE

EXISTING 2" HDPE COMPRESSED

AIR LINE TO FLARE STATION

COMPRESSOR (CUT & CAP

AFTER NEW FLARE STATION

IS OPERATIONAL)

EXISTING 12" HDPE TO FLARE

STATION KNOCK-OUT (CUT &

CAP AFTER NEW FLARE STATION

IS OPERATIONAL)

EXISTING

PIPING FROM

UNIT #1

EXISTING 2" HDPE

EXISTING 2" HDPE COMPRESSED

H

D P

E

L

G

A

D E

R

P I P

I N

G

F

R O

M

U

N

H

D P

E

C

O N

D E

N S

A T

E

F

M

H

D P

E

C

O M

P R

E S

S E

D

A

I R

S

N

K

S

P

W

A

N

T

C

P

TYP 10 PLACES

S

D

S

D

S

D

S

D

S

D

S

D

S

D

S

D

S

D

S

D

S

D

S

D

S

D

S

D

A

A

A

A

SUMP

SUMP "A"

SUMP "B"

AIR (JOIN WITH NEW AIR LINE)

61 62

63 62 6164

63 64

37 41 37

65 67

56 61 55 62

63 65 67

30" INV=1575.0 (EAST)

G

G

G

47 59

81 56

63 62 616567

25 28

4" CLEAN-OUT6972

2" CLEAN-OUT6839

TYP 5

PLACES

TYP 5

PLACES

G

EXISTING 12" SDR 17

HDPE TO UNIT #4

NTS

PIPE SUPPORT/SIGN DETAIL2

REFERENCE SHEET: DETAIL 1 THIS SHEET

T

G

W

E R

P L

A N

T

1'-0"

CONDENSATE

2' LONG X 1' WIDE X 2' DEEP

CONCRETE FOOTING OR 2'Ø

SONOTUBE

8" SQUARE STEEL SIGN. 3/4"

BLACK LETTERS ON WHITE

BACKGROUND, FASTEN WITH

TWO 1/4" SHEET METAL

SCREWS TO STRUT CHANNEL

PLASTIC STRUT CHANNEL CAPS

2" GALVANIZED STRUT CHANNEL

CLAMPS

U OR L BRACKETS AND

HARDWARE

1 5/8" X 1 5/8" GALVANIZED

STRUT CHANNEL, TYP

TYP 6 PLACES

PLACES

TYP 6

CONDENSATE FM

C O

N N

E C

T

T

O

X

D

N

D E

N S

A T

E

F

M

C O

N N

E C

T

T

O

X

D

N

D E

N S

A T

E

F

M

26 26

C

C

LEGEND

PROPOSED 4" X 8" DUAL CONTAINMENT CONDENSATE FORCEMAIN (TO POWER PLANT)

PROPOSED 2" X 4" DUAL CONTAINMENT CONDENSATE FORCEMAIN (TO TK-701)

EXISTING 2" HDPE COMPRESSED AIR LINE

A PROPOSED 2" HDPE COMPRESSED AIR LINE

A

EXISTING BELOW GRADE PIPING

PROPOSED BELOW GRADE PIPING

PROPOSED PIPING/EQUIPMENT ABOVE GRADE

EXISTING ABOVE GRADE PIPING

F

I E

V

R

I F

Y

H

E A

D E

R

D

E P

T H

12" HDPE

LFG HEADER

G

AFTER NEW FLARE

STATION IS OPERATIONAL

G

NONE 15C-502

DETAILS

INSTALL 1" SDR 11 HDPE PIPE & FITTINGS

INSTALL 2" HDPE SADDLE

INSTALL 2" SS CHECK VALVE, Y SPRING TYPE

61 INSTALL 2" X 1" HDPE REDUCER

62 INSTALL 1" HDPE TO SS TRANSITION FITTING

63 INSTALL 1" SS COUPLING

64 INSTALL 1" X 3/4" SS REDUCER BUSHING

65 INSTALL 1" X 1/2" SS REDUCER BUSHING

66 INSTALL 3/4" SS PIPE NIPPLE

67 INSTALL 1/2" SS PIPE NIPPLE

68 INSTALL 4" X 2" HDPE D/C TERMINATION FITTING

69 INSTALL 8" X 4" HDPE D/C TERMINATION FITTING

73 INSTALL 30" SDR 17 HDPE PIPE

74 INSTALL 30" HDPE FLANGE ADAPTER, D.I. BACK-UP RING, AND HARDWARE

INSTALL 30" X 24" HDPE REDUCER

INSTALL 24" X 18" HDPE REDUCER

INSTALL 18" X 12" HDPE REDUCER

INSTALL 18" SDR 17 HDPE PIPE

INSTALL 18" HDPE FLANGE ADAPTER, D.I. BACK-UP RING, AND HARDWARE

INSTALL 2" SDR 11 HDPE x 4" SDR 17 HDPE DUAL CONTAINED PIPE & FITTINGS 83

INSTALL 4" SDR 11 HDPE x 8" SDR 17 HDPE DUAL CONTAINED PIPE & FITTINGS84

INSTALL SALVAGED 12" BUTTERFLY VALVE85

REMOVE/SALVAGE EXISTING SUMP, VALVES, PIPE, AND FITTINGS9

INSTALL 2" SDR 9 HDPE PIPE & FITTINGS

INSTALL 2" SDR 11 HDPE PIPE & FITTINGS

INSTALL 24" HDPE TEE, SDR 17

INSTALL 24" HDPE FLANGE ADAPTER, D.I. BACK-UP RING, GASKET, AND BOLT KIT

INSTALL 2" HDPE BALL VALVE, BUTT X BUTT

INSTALL 2" HDPE TO STAINLESS STEEL TRANSITION FITTING (BUTT x MPT)

INSTALL CONDENSATE SUMP ASSEMBLY "B", SERIES 7000 SUMP, 18" X 24" DUAL CONTAINED

INSTALL PIPE SUPPORT, CONCRETE FOOTING AND SIGN PER DETAIL 2 THIS SHEET

INSTALL 12" HDPE ELBOW, 90°, SDR 17

INSTALL 12" HDPE FLANGE ADAPTER, D.I, BACK-UP RING, GASKET, AND BOLT KIT

JOIN EXISTING

INSTALL/REPLACE 6" AC BERM

INSTALL CONDENSATE SUMP ASSEMBLY "A", SERIES 7000 SUMP, 30" X 36" DUAL CONTAINED

INSTALL 4" HDPE BALL VALVE, BUTT X BUTT

SEE SUMP "A" AND GHS-1 INLET PIPING PROFILE PER SHEET C-301

SEE SUMP "B" AND GHS-2 INLET PIPING PROFILE PER SHEET C-302

INSTALL 4" X 2" HDPE REDUCER, SDR 11

INSTALL 4" X 2" HDPE D/C 45° WYE FITTING

CONSTRUCTION NOTES

71 INSTALL 8" X 4" HDPE D/C 45° WYE FITTING

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DESIGNED BY

DRAWN BY PROJ. ENGR.

DEPARTMENT OF PUBLIC WORKS

SUBMITTED BY

TOT. SHT'S.

SAN BERNARDINO COUNTY

SHT. NO.

SCALE

DWG NO.DATE

RECOMMENDED / APPROVED BY

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SAMI H AYASS

PREPARED UNDER THE SUPERVISION OF:

DATECHIEF ENGINEER

DEPUTY DIRECTOR DATEPROJECT MANAGER DATE 6/2025 42

MID-VALLEY SANITARY LANDFILL

SNA/SHA SHA

LANDFILL GAS FLARE STATION

21700 Copley Drive, Suite 200 Diamond Bar, CA 91765

TEL 909.860.7777 FAX 909.860.8017

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INSTALL 12" BUTTERFLY VALVE41

INSTALL 12" HDPE TEE89

2" PVC80

P

V C

V-3 PMP-701/702

TK-701

TK-701

LG

C

C

V-3

LT

2" PVC80

CONDENSATE HOLDING TANK

MFR: POLY PROCESSING (CORE-ROSION)

SIZE: 11'-11"Ø X 14'-6" HIGH

COLOR: BLACK

CAPACITY: 8,700 GALLONS WITH

SECONDARY CONTAINMENT, SIESMIC

RESTRAINT, FITTINGS

ELECTRIC PUMP

MFR: GRUNDFOS

MODEL:CM3-9 A-S-I-E-AQQE

FLOW: 5 GPM

MOTOR: 3.35 HP (440-480V,

3Ø, 60Hz)

GRANULAR ACTIVATED CARBON

CONNECTION: 2" FNPT

SIZE: 55 GALLON DRUM

LEGEND

PROPOSED PIPING/EQUIPMENT SUPPLIED AND INSTALLED BY CONTRACTOR

PIPING/EQUIPMENT SUPPLIED BY FLARE MANUFACTURER (PURCHASED BY COUNTY)

2" HDPE11

30MM BTU

1/2"

FLR-1

CDN

CDN

CDN

1 GPM MAX.

1/2" SS40

1/2"

FLR-2 CONDENSATE DESTRUCTION

SYSTEM (CDS) BY PEI (SEE SHEET 45 & 46)

CDN

1 GPM/30 MM BTU

HV

1" SS

PMP-701

1" SS

M

PMP-702

1" SS

1" SS

PS

5/8" SST

PI

M

PI

FE

FT

1/2" SST

FE

FT

1/2" SST

5 GPM MAX

PI

1/2" SS40

PI

1/2"

PI

PI

PI

SS40

1/2"

SS40

1/2"

SS40

PI

FLR-1 CONDENSATE DESTRUCTION

SYSTEM (CDS) BY PEI (SEE SHEETS 45 & 46)

CONDENSATE DESTRUCTION

SYSTEM (CDS) BY PEI (SEE SHEET 45)

S

S

1/2" SS40

1/2" SS40

2" HDPE

1/4"

1/4"

TSE-701

FLAME CHECK

MFR: GROTH

MODEL: 7622

CONNECTION: 2" FNPT

MATERIAL: SS ELEMENT

TSE-701

HV

HV

SP

SP

30x36 D/C

P

SUMP "A"

H

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PI

FT

EXISTING PIPING/EQUIPMENT OR INSTALLED BY OTHERS (ARCHAEA OR COUNTY)

G

CONDENSATE TO

POWER PLANT

EXISTING 4x8 HDPE D/C CONDENSATE LINE

(BY OTHERS)

FROM UNIT #4

CONDENSATE FM

24x12

FLR-2

INJECTION

INJECTION

SUMP

FLARE STATION

EXISTING

CONDENSATE

FLARE STATION

EXISTING

TANK

FROM UNIT #2/#3

4x8 HDPE D/C

12"

LFG FROM

UNIT #1

G

PE17

LFG FROM

UNITS #2 & #3

G

NEW

VALVES

12" HDPE17

LFG FROM UNIT

#4 (UNUSED)

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TO EXISTING

CONDENSATE FM

KNOCK-OUT

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G

FROM UNIT #1

CONDENSATE FM

2"x4" D/C HDPE

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AIR IN

4x2

2" HDPE11

2" HDPE11

EXISTING PIPING/EQUIPMENT TO BE REMOVED AFTER START-UP OF NEW SYSTEM

18x24 D/C

P

SUMP "B"

P

E

PI

FT

x

AIR IN

TO GHS-2

30" PE17

18" PE17

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HV

4x2

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FSV

FSV

HV

AND SHEET D-602

AIR IN

AIR IN

(SEE SHEET D-602)

2" HDPE11

TO EXISTING CONDENSATE INJECTION PUMPS

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HV

HV

HV

HV

HV

HV

HV

CAP LINE AFTER START-UP

OF NEW FLARE STATION

HV

SUMP-A

CONDENSATE SUMP ASSEMBLY

MFR: REAL ENVIRONMENTAL PRODUCTS OR EQUAL

MODEL: SERIES 7000, IN-LINE

DUAL CONTAINED AUTO SUMP

SIZE: 30"Ø SDR 17 HDPE PRIMARY AND

36"Ø SDR 32.5 HDPE SECONDARY

PUMP MFR: PUMP ONE - #20000454

FLANGE CONNECTIONS: 30" AND 24"

PUMP ISOLATION WELL: 6" HDPE WITH

QUICK-CONNECT ACCESS PORT

ASSESSORIES: PNEUMATIC PULSE COUNTER, 1"

DISCHARGE HOSE, 3/8" AIR HOSE, 1/2" VENT HOSE

(TUBING BUNDLE), PRESSURE REGULATOR, AIR

VALVE, DISCHARGE VALVE, CLAMPS,

QUICK-CONNECT FITTINGS,VAULT

SUMP-B

CONDENSATE SUMP ASSEMBLY

MFR: REAL ENVIRONMENTAL PRODUCTS OR EQUAL

MODEL: SERIES 7000, IN-LINE

DUAL CONTAINED AUTO SUMP

SIZE: 18"Ø SDR 17 HDPE PRIMARY AND

24"Ø SDR 17 HDPE SECONDARY

PUMP MFR: PUMP ONE - #20000454

FLANGE CONNECTIONS: 18"

PUMP ISOLATION WELL: 6" HDPE WITH

QUICK-CONNECT ACCESS PORT

ASSESSORIES: PNEUMATIC PULSE COUNTER, 1"

DISCHARGE HOSE, 3/8" AIR HOSE, 1/2" VENT HOSE

(TUBING BUNDLE), PRESSURE REGULATOR, AIR

VALVE, DISCHARGE VALVE, CLAMPS,

QUICK-CONNECT FITTINGS,VAULT

PROPOSED DUAL CONTAINED HDPE PIPING, SIZE PER PLAN

(SEE SHEET D-602)

(SEE SHEET D-602)

GAC

AND FLARE INJECTION SYSTEM

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FSV

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HV

FSV

HV

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4x2

FSV

HV

FSV

HV

HV

HVFSV

FSV

HV

4" CLEAN-OUT

HV

2" CLEAN-OUT

HV

NEW FLARE STATION AREA

EXISTING FLARE STATION AREA

2" HDPE11

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2" HDPE11

CAP LINES AFTER

START-UP OF NEW

FLARE STATION

4x2

2" PVC80

2x1

2"x4" D/C HDPE

24"

30"

TO GHS-1

(SEE SHEET D-602)

ELECTRICAL BY CONTRACTOR

FLR-1 EQUIPMENT SUPPLIED BY PEI (SEE SHEET 46)

AND SHEET D-602

FLR-2 EQUIPMENT SUPPLIED BY PEI (SEE SHEET 46)

VAULT @ FS

HV-705

HV-706

HV-707

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HV-703

HV-704

2" HDPE11

2" PVC80

1" SS

FX

INSTALL 12" TEE

INSTALL 12" TEE

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HV

HV

NONE 32D-601

CONDENSATE MANAGEMENT SYSTEM

PROCESS FLOW DIAGRAM

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DESIGNED BY

DRAWN BY PROJ. ENGR.

DEPARTMENT OF PUBLIC WORKS

SUBMITTED BY

TOT. SHT'S.

SAN BERNARDINO COUNTY

SHT. NO.

SCALE

DWG NO.DATE

RECOMMENDED / APPROVED BY

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R K

D A

T E

DATE

PREPARED UNDER THE SUPERVISION OF:

DATECHIEF ENGINEER

DEPUTY DIRECTOR DATEPROJECT MANAGER DATE 6/2025 42

MID-VALLEY SANITARY LANDFILL

SNA/SHA SHA

FLARE STATION IMPROVEMENTS

21700 Copley Drive, Suite 200 Diamond Bar, CA 91765

TEL 909.860.7777 FAX 909.860.8017

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AutoCAD SHX Text

ATTACHMENT 3

Revised Technical Specifications

Mid-Valley Sanitary Landfill Subsection C01029 Basis of Payment Landfill Gas Flare Station

Page C01029-1

SECTION C1 – GENERAL REQUIREMENTS

SUBSECTION C01029

BASIS OF PAYMENT

PART 1 – GENERAL

1.01 INTRODUCTION

This section includes the items of work and the basis of payment for these tasks. The Contractor shall bid Items 1 through 87 below separately and provide a total sum for all work line items, including optional item 87. The Contractor is responsible for supplying all materials, equipment, and labor necessary for the complete construction and installation of all work as described in these specifications and as shown on the Construction Drawings. Payment for each work item will be on either a unit price (EA), lump sum (LS), lineal foot (LF), cubic yard (CY), or square foot (SF) basis, and only after that portion of the project has been completed.

PART 2 – PRODUCTS (NOT USED)

PART 3 – EXECUTION (NOT USED)

PART 4 – PAYMENT

4.1 MOBILIZATION/DEMOBILIZATION

This task includes any and all temporary facilities and utilities, safety plans, and construction equipment required for this project. Payment for this work will be made on a LS basis. Twenty-five (25) percent of the LS price bid will be paid with the first payment request following satisfactory evidence of mobilization of sufficient labor, equipment and material to adequately progress the work of this contract. Twenty-five (25) percent of the LS price bid will be paid with the payment request subsequent to the payment request in which the initial payment for this item is made. Fifty (50) percent of the LS price bid will be paid with the Final Payment request. The price bid in the proposal for this item shall not exceed ten (10) percent of the total project amount.

4.2 CLEARING AND GRUBBING

Supply all material, equipment, and labor necessary to clear and grub the pipe path and flare station area to allow suitable working area, as shown on the Construction drawings.

Included is the removal of all refuse, debris and green waste as required. This item shall include all resources necessary to prepare access roads and the removal and disposal of refuse generated. Refuse shall be disposed of at the active working face at Mid-Valley Landfill. Transportation costs to and from the landfill active face shall be included in this

Page C01029-2 item. No tipping fees are required for the trucks; however, all trucks must be weighed.

Payment for this item will be on a LS basis.

4.3 SURVEY (PRE- AND POST-CONSTRUCTION)

Supply all material, equipment, and labor necessary to perform surveying tasks, including initial layout survey for piping, treatment facility grading and earthwork, and as-built survey of piping and wells. Payment for this item will be on a LS basis.

4.4 GENERAL EARTHWORK AND GRADING

Supply all materials, equipment, and labor for the earthwork and grading of the flare station area. Excavation includes removal, relocation, or disposal of any rocks, and boulders in the approximate area as shown on the Construction Drawings, Sheet C-103.

Payment for this item will be on a LS basis.

4.5 STORM DRAIN DEMOLITION

Supply all materials, equipment, and labor for partial removal and modification (grout/plug) of the existing storm drain, as well as partial removal of existing headwall, as shown on the Construction Drawings, Sheet C-102. Payment for this item will be on a LS basis.

4.6 FENCE REMOVAL

Supply all materials, equipment, and labor for the removal of existing fencing as shown on the Construction Drawings, Sheet C-102. Payment for this work will be on a unit price LS basis.

4.7 RELOCATION OF EXISTING STORAGE AND CARGO CONTAINERS

Supply all materials, equipment, and labor for the relocation of the existing storage and cargo containers as shown on the Construction Drawings, Sheets C-101, C-102, and M-

101. Payment for this item will be on a unit price EA basis.

4.8 RELOCATION OF EXISTING FLARE STATION MOBILE O&M OFFICE TRAILER

Supply all materials, equipment, and labor for the relocation of existing flare station O&M mobile office trailer. This includes associated portable staircases and general utility connections as shown on the Construction Drawings, Sheets C-101, C-102, and M-101.

Page C01029-3

4.9 SAWCUT AND REMOVAL OF AC BERM AND PAVEMENT

Supply all material, equipment, and labor for the sawcut and removal of the asphalt concrete (AC) berm and pavement as shown on Construction Drawings, Sheet C-102.

Payment for this item will be on a unit price LS basis.

4.10 DEMOLITION AND REMOVAL OF EXISTING CONCRETE SLABS, FOOTINGS,

CONDUITS AND APPURTENANCES

Supply all materials, equipment, and labor for the demolition and removal of existing concrete slabs in the flare station area. Excavation includes removal, relocation, or disposal of slabs, footings, and conduits in the approximate area as shown on the Construction Drawings, Sheet C-102. Payment for this item will be on a LS basis.

4.11 SALVAGE EXISTING CONDENSATE SUMP ASSEMBLY

Supply all materials, equipment, and labor to salvage an existing condensate sump assembly and appurtenances. Work includes excavation of condensate sump assembly, backfill, and compaction of excavated area as shown on the Construction Drawings, Sheets C-102 and C-502. Payment for this item will be on a LS basis.

4.12 DEMOLITION AND DISPOSAL OF EXISTING FLARE STATION

Contractor will be responsible for the removal of the existing LFG flare station, excluding infrastructure related to the connection of the new flare station, within 60 days of startup and successful source testing of the new flare. Contractor will be responsible for demolition and/or disposal of equipment, including but not limited to blower(s), flare(s), tank(s), interconnection piping, pump(s), surrounding fencing, concrete pads and foundations, and electrical infrastructure. Salvage blower(s) and/or any other items at the discretion of the County. Demolished materials will be scrapped and removed from the site. Contractor will be responsible for disposal on-site (no disposal fees for dumping of non-hazardous materials on-site). All materials must go through scales for weight.

Contractor will be required to perform asbestos testing and share results prior to decommissioning the existing flare station. The Contractor will bear the cost of decommissioning the LFG flare station. Payment for this item will be made on a LS basis.

4.13 INSTALL CONDENSATE SUMP ASSEMBLY “A” AND APPURTENANCES

Supply all materials, equipment, and labor to install condensate sump assembly “A” and appurtenances. Sump assembly includes a slurry component (mixture of liquid and solid materials) used to facilitate the…