Decommissioning Plan Report - Peterborough Utilities Inc.

Transcription

PETERBOROUGH
WASTE WATER
TREATMENT PLANT
GENERATION PROJECT
Cambium Reference No.: 3005-001
Decommissioning Plan
Report
2014-09-02
Cambium Inc.
P.O. Box 325
52 Hunter Street East, Peterborough
Ontario, K9H 1G5
Telephone:
Facsimile:
(866) 217.7900
(705) 742.7907
cambium-inc.com
Decommissioning Plan Report
2014-09-02
Peterborough Waste Water Treatment Plant Generation Project
Peterborough Utilities Inc.
TABLE OF CONTENTS
1.0 INTRODUCTION...................................................................................................................................... 1 1.1 GENERAL INFORMATION ...................................................................................................................... 1 1.2 CONTACTS ............................................................................................................................................. 1 1.3 FEDERAL INVOLVEMENT...................................................................................................................... 2 2.0 DECOMMISSIONING .............................................................................................................................. 3 2.1 DECOMMISSIONING DURING CONSTRUCTION................................................................................. 3 2.2 DECOMMISSIONING AFTER CEASING OPERATION.......................................................................... 3 2.2.1 Equipment Dismantling and Removal ...................................................................................................... 4 2.2.1.1 Generator ............................................................................................................................................ 4 2.2.1.2 Gas Treatment Module and Piping ..................................................................................................... 4 2.2.1.3 Flare .................................................................................................................................................... 4 2.2.1.4 Transformer ......................................................................................................................................... 4 2.2.1.5 Equipment Foundations and Pipe Supports........................................................................................ 4 2.2.1.6 Transmission Line ............................................................................................................................... 5 2.2.1.7 Power Cables ...................................................................................................................................... 5 2.3 SITE RESTORATION .............................................................................................................................. 5 2.4 MANAGING EXCESS MATERIALS AND WASTE .................................................................................. 6 3.0 EMERGENCY RESPONSE AND COMMUNICATION PLAN................................................................. 7 4.0 DECOMMISSIONING NOTIFICATION ................................................................................................... 8 5.0 OTHER APPROVALS ............................................................................................................................. 9 6.0 CONCLUSIONS..................................................................................................................................... 10 LIST OF APPENDED FIGURES
Figure 1 Site Location Plan LIST OF INSERTED TABLES
Table 1
Proponent and Consultant Contact Information
LIST OF APPENDED TABLES
Table 2 Management of Wastes and Materials Prepared by Cambium Inc.
Reference: 3005-001
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2014-09-02
1.0 INTRODUCTION
Cambium Inc. (Cambium) was retained by Peterborough Utilities Incorporated (PUI) to prepare this
Decommissioning Plan Report (DPR) for the operation of a Renewable Energy Generation Facility (the Facility) at
the Peterborough Waste Water Treatment Plan (WWTP) located at 425 Kennedy Road, in Peterborough, Ontario
(the Site). See Figure 1 for a Site Location Plan.
This Report has been prepared in accordance with Ontario Regulation (O. Reg.) 359/09 – Renewable Energy
Approvals under Section V.0.1 of the Ontario Environmental Protection Act and is being submitted as part of a
Renewable Energy Approval (REA) application for the Facility.
This DPR describes plans for the decommissioning of the renewable energy facility, activities related to the
restoration of lands and waters negatively affected by the project, and procedures for managing excess waste.
1.1
GENERAL INFORMATION
PUI intends to build and commission a 380 kilowatt (kW) combined heat and power (CHP) facility by utilizing the
Peterborough WWTP as an energy source. The Peterborough WWTP process creates a biogas by-product that
fuels three (3) boilers used in the Facility’s anaerobic digestive system; however, the amount of fuel required for
the boilers is finite, and currently a surplus of by-product biogas is being produced, flared, and essentially wasted.
The biogas will be the fuel source for the reciprocating engines and the thermal energy generated from the
engine(s) will be captured through a heat recovery system. The heat recovery system in turn will heat the water
utilized in the anaerobic digestive system. This is considered to be a Class 3 anaerobic digestion facility that
utilizes biomass organic matter as per O. Reg. 359/09.
An application by PUI was made to the Ontario Power Authority (OPA) to obtain a contract for the sale of
electricity from the CHP Facility through the Province’s Feed in Tariff (FIT) program (enabled by the Green
Energy and Green Economy Act). PUI has been awarded a FIT 2.1 Contract for the sale of electricity to the
Ontario OPA. The FIT 2.1 program requires a REA to be completed prior to the Notice to Proceed (NTP) being
issued from the OPA.
The official name of the project is: Peterborough Waste Water Treatment Plant Generation Project.
1.2
CONTACTS
PUI is the applicant and Cambium is the engineering consultant representing PUI. Contact information for PUI
and Cambium personnel is provided below:
Prepared by Cambium Inc.
Reference: 3005-001
Page 1
2014-09-02
Table 1
Proponent and Consultant Contact Information
Name
Title
Address
Phone and Fax
Kevin
McKeown
(Generation Project
Manager)
Jim Bailey
Cambium Inc.
(REA Consultant)
Christine
Teixeira
Cambium Inc. (REA Senior
Engineer)
Andrea
Coppins
Cambium Inc. (REA
Project Coordinator)
2245 Keene Road
Peterborough, Ont.
K9J 6Z5
52 Hunter St. E
Peterborough, Ont.
K9H 1G5
52 Hunter St. E
Peterborough, Ont.
K9H 1G5
52 Hunter St. E
Peterborough, Ont.
K9H 1G5
P: 705‐748‐9301
ext. 1309
F: 705‐743‐5988
P: 705-742-7900
ext. 201
F: 705-742-7907
P: 705-742-7900
ext. 216
F: 705-742-7907
P: 705-742-7900
ext. 207
F: 705-742-7907
1.3
Email
[email protected]
[email protected]
[email protected]
[email protected]
FEDERAL INVOLVEMENT
No Federal lands, Federal funding, or watercourses are part of, or will be impacted by this project; therefore, a
Federal Environmental Assessment is not anticipated to be completed for this project.
Reference: 3005-001
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2.0 DECOMMISSIONING
The decommissioning of the Site will involve the removal of all equipment as well as disconnection of gas lines
and power lines. The subject Site will be reinstated to conditions similar to its current conditions.
2.1
DECOMMISSIONING DURING CONSTRUCTION
In the unlikely event that the project is abandoned before completion, any structural components that are already
installed will be removed as outlined in this report. Open excavations will be backfilled and the ground will be
compacted and regraded to conditions as close to those prior to construction as possible.
Site preparation such as grading is minimal and should not change the drainage pattern of runoff rainwater.
Areas where vegetation was impacted will be reseeded with native species if natural seeding from nearby plants
is unlikely to occur. Mitigation measures, as described in the Construction Plan Report will also be implemented
where appropriate.
2.2
DECOMMISSIONING AFTER CEASING OPERATION
The Site will be reinstated to conditions similar to conditions prior to the REA project.
Dismantling activities will occur in the following sequence:

Removal of electrical connection of the grid to eliminate exposure to high voltage electricity. The hydro pole
and power line that connects the power generation facility to the grid may be removed at this time or in
parallel with the removal of the other components.

Removal of liquids to remove the risks of spill. The oil stored in the gas treatment modules and the
generator module will be removed.

Dismantling of the power generation facility beginning with modular components located on concrete
foundations. This includes the electrical components such as the transformer, high voltage switchgear, and
metering cabinets.

Removal of above-ground piping or electrical conduit/wiring that interconnects the equipment modules.

Removal of the equipment modules. This includes the gas treatment module, the generation module, and
any additional equipment modules added over the life of the project.

Removal of underground piping and electrical conduit/wiring to create space for removal of larger
underground structures such as the transformer foundation.

Transformer foundation and any other equipment foundations are removed.
Reference: 3005-001
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
The area of the transformer foundation will be graded with soil and seeded, as necessary, prepared for
future uses.

Final Site restoration and Site inspection.
2.2.1
2.2.1.1
EQUIPMENT DISMANTLING AND REMOVAL
GENERATOR
The CHP unit will be removed. The first step is to drain oil from the storage tanks and reservoirs. The fluid used
on the gas treatment system should be removed. Any materials removed should be disposed of at an approved
disposal site. The piping should be purged to remove flammable gases. Next, all components that are not
transported with the generator module should be removed. This would include the stack, exterior components of
the gas cooler system, exterior piping, and electrical cabling.
2.2.1.2
GAS TREATMENT MODULE AND PIPING
Any liquids associated with the gas cooler system will be drained from the equipment and piping. The piping
would be purged to remove any combustible gases. The exterior piping, electrical cabling, and equipment will be
removed from the gas treatment module. The gas treatment module would be removed from the foundation and
loaded on a truck with a crane.
2.2.1.3
FLARE
The generator unit will be connected to an existing flare. Therefore, upon decommissioning, the existing flare will
be disconnected from the gas source and reinstated to conditions similar to prior to the installation of the CHP unit
and associated equipment. Any electrical power supplies will be disconnected and interconnecting piping and
electrical cabling between the blower and the flare will be removed. This includes any piping and wiring between
electrical and instrumentation panels and equipment.
2.2.1.4
TRANSFORMER
Oil will be removed from the transformer and disposed of at an approved facility. The transformer will be removed
by disconnecting the electrical cabling and any foundation bolting. The transformer should be removed from the
foundation with a crane.
2.2.1.5
EQUIPMENT FOUNDATIONS AND PIPE SUPPORTS
The CHP will be located in an existing building; therefore, no removal of foundation is necessary in this area. The
decommissioning of the transformer foundation would involve the excavation and temporary stockpiling of the soil
around the foundation. Once cleared, the concrete foundation will be removed using appropriate equipment. The
Reference: 3005-001
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2014-09-02
removed concrete and rebar scrap will be removed from the Site by truck and property disposed of at a registered
waste disposal site or recycling facility. The stockpiled soil will be used to replace the excavated area on top and
around the foundation. The disturbed area will be feathered out and graded. The soil will be seeded with native
vegetation as required or prepared for future uses. Pipe supports would be removed in a manner similar to the
equipment foundations.
2.2.1.6
TRANSMISSION LINE
Decommissioning of the transmission line components will involve the removal of the high voltage line that
connects the generation station to the distribution line. All poles and associated equipment, such as isolation
switch, fuses, and metering, will also be removed.
2.2.1.7
POWER CABLES
The following cables will be removed:

Underground high-voltage power cable between the isolation switch and high voltage side of the
transformer.

Cables that connect the low voltage side of the transformer to the electrical intertie.

Power and control cabling between the equipment modules.
These cables will be removed by disconnecting them at the equipment and then extracting them from the ducts
and conduit using cable pulling equipment. The empty cable ducts and conduit can be removed using small
excavation equipment.
2.3
SITE RESTORATION
Prior to construction, the project location consisted of an existing building and a small grassed area (i.e. the area
where the transformer will be located). Since the area where the CHP will be located is within an existing
building, the proposed Facility will not negatively affect the lands or waters in any significant way. However, once
all components have been removed, the project area will be restored to as close to a pre-construction state as
feasible.
The following steps outline how the lands and waters potentially affected by the Facility will be restored to a prefacility condition:

As discussed earlier in this report, the Site will be reinstated to conditions similar to its pre-facility
conditions.

The area of the transformer will be seeded to grow vegetation that is consistent with the surrounding land.
Reference: 3005-001
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Is it not expected that the lands surrounding the Facility will require any special remediation since any hazardous
materials used on the Site will be contained with adequate spill protection. As with the construction process, any
land that was disturbed or compacted during the decommissioning of components will be de-compacted and
graded, followed by the application of soil, if required, and seeding with native species.
No direct impact to the aquatic environment is expected from the Site restoration activities.
2.4
MANAGING EXCESS MATERIALS AND WASTE
During the decommissioning of the Facility, a variety of materials and wastes will be generated. Where possible,
materials should be reused or recycled. Waste materials will be landfilled at the Peterborough County and City
Waste Management Facility or will be transported to a licensed landfill by a certified contractor. Table 2 describes
the types of material or waste anticipated and how the material will be managed.
Reference: 3005-001
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2014-09-02
3.0 EMERGENCY RESPONSE AND COMMUNICATION PLAN
Information regarding the Emergency Response and Communication Plan is included within the Design and
Operations Plan submitted as part of the REA. The Emergency Response and Communication Plan will cover
the life of the project, including decommissioning.
Reference: 3005-001
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2014-09-02
4.0 DECOMMISSIONING NOTIFICATION
Notification of decommissioning activities will follow the same process as for non-emergency communication
outlined in the Emergency Response and Communication Plan included within the Design and Operations Plan.
Once the Facility has been fully decommissioned, all responders and stakeholders listed in these plans will be
notified. This will allow those parties to make appropriate changes to their own plans and organization.
Reference: 3005-001
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5.0 OTHER APPROVALS
No other approvals are required for the generation project. PUI is aware that after the decommissioning of the
Facility, a Record of Site Condition under the Ministry of the Environment (MOE) Records of Site Condition
Regulation, O. Reg. 153/04, may be required. In the event that other approvals are required at the time of
decommissioning, PUI will ensure that all approvals are obtained.
Reference: 3005-001
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2014-09-02
6.0 CONCLUSIONS
This DPR has been prepared in accordance with O. Reg. 359/09 and will be submitted as part of a REA
application for the Peterborough Waste Water Treatment Plant Generation Project.
Should you have any questions or comments with respect to the enclosed, please do not hesitate to contact the
undersigned.
Respectfully submitted,
Cambium Inc.
Christine Teixeira, P.Eng.
Senior Engineer
Jim Bailey, P.Eng.
Senior Project Manager
P:\3000 to 3999\3005-001 Peterborough Utilities - REA Peterborough WWTP\Deliverables\FINAL REPORTS\FINAL - Decommissioning Plan Report\2014-09-02 RPT PUI REA DPR.docx
Reference: 3005-001
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2014-09-02
Appended Figures
Cambium Inc.
ST
LOT 14
CON 11
LOT 13
CON 11
XW
MA
TS
KS
PAR
C
ST
IEW
ERV
RIV
INE
ER
ATH
S
LLI
CO
ST
Waste Water Treatment Plant
ES
CR
ON
SO
ee
AVE
ON
AVE
VE
EA
UC
SPR
NE
DEN
O
to
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ve
S
LLI
CO
DR
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na
K
AR
HP
UT
ELE
STE
DR
Project Location
HT
Lot
T
NS
RO
ME
A
C
Ri
RI
VE
RS
ID
E
PETERBOROUGH UTILITIES INC.
425 Kennedy Road,
Peterborough, Ontario
LEGEND
SH
ER
AVE
ON
ND
R
A
º
AVE
ELL
PETERBOROUGH WASTE
WATER TREATMENT PLANT
GENERATION PROJECT
AV
E
EN
WD
HO
LOT 25
CON 14
AVE
IN
ST
AR
ELL
K
MC
GR
AM
AH
S
CR E
Algonquin
Huntsville
SITE
Orillia
Barrie
Vaughan Oshawa
Lake Onatrio
Mississauga L a k e O n a t r i o
NAG
MO
KEN NE D
0
D
Y R
D
NR
HA
Y7
LOT 24
CON 14
100
km
P.O. Box 325, 52 Hunter Street East
Peterborough, Ontario, K9H 1G5
Tel: (705) 742.7900 Fax: (705) 742.7907
www.cambium-env.com
N DR
HW
50
Notes:
- 2012 image acquired January 2014 from ESRI. Source: Esri, DigitalGlobe,
GeoEye, i-cubed, USDA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP,
swisstopo, and the GIS User Community
- Base mapping features are © Queen's Printer of Ontario, 2010 (this does
not constitute an endorsement by the Ministry of Natural Resources or the
Ontario Government).
- Distances on this plan are in metres and can be converted to feet by
dividing by 0.3048.
- Cambium Inc. makes every effort to ensure this map is free from errors but
cannot be held responsible for any damages due to error or omissions. This
map should not be used for navigation or legal purposes. It is intended for
general reference use only.
415
115
A ND
Lindsay
Quinte
West
400
425
Pembroke
Index
Map
Park
JOH
NST
O
SITE LOCATION PLAN
Project No.:
Scale:
0
20 40 60 80 100
Metres
Created by:
Date:
3005-001 Rev.:
Projection:
1:5,000
NLB
Checked by:
June 2014
NAD 1983 UTM Zone 17N
JAB
Figure:
1
2014-09-02
Appended Tables
Cambium Inc.
2014-09-02
Table 2: Management of Wastes and Materials
Material/Waste
Means of Managing Excess Materials and Waste
Process piping
Removed, cleaned, and transported by certified and licensed contractor to landfill
or recycling facility
Electrical equipment
Electrical wiring, transformer, switchgear, and motors will be removed, cleaned,
and transported by a certified and licensed contrator to landfill or recycling facility
The process equipment will be well maintained during the life of the project. At the
Process equipment (genset, flare, end of the project, process equipment can be reused if a market exists for the
and gas treatment equipment)
equipment. Outdated equipment will be dismantled, cleaned, and transported by a
certified and licensed contractor to landfill or recycling facility
Asphalt and concrete foundations
Asphalt and concrete foundations will be broken down and transported by certified
and licensed contractor to landfill or recycling facility
Site aggregate and fill
The site aggregate and fill used for construction will be tested for contamination
prior to removal and disposed of at landfill or recycling facility. Where possible, fill
will be reused to re-establish site elevations. Topsoil will be added as necessary to
return site to condition equivalent to the surroundings.
Structures
The transmission line poles will be dismantled and transported to landfill or
recycling facility.

Decommissioning Plan Report - Peterborough Utilities Inc.

Transcription

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