HomeMy WebLinkAbout10/12/2010 Study Session Agenda PacketJ J`
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MARANA TOWN COUNCIL
STUDY SESSION
NOTICE AND AGENDA
11555 W. Civic Center Drive, Marana, Arizona 85653
Council Chambers, October 12, 2010, at or after 6:00 PM
Ed Honea, Mayor
Herb Kai, Vice Mayor
Russell Clanagan, Council Member
Patti Comerford, Council Member
Carol McGorray, Council Member
Jon Post, Council Member
Roxanne Ziegler, Council Member
ACTION MAY BE TAKEN BY THE COUNCIL ON ANY ITEM LISTED ON THIS AGENDA.
Revisions to the agenda can occur up to 24 hours prior to the meeting. Revised agenda items appear in
italics. The Council Chambers are wheelchair and handicapped accessible. Any person who, by reason
of any disability, is in need of special services as a result of their disability, such as assistive listening
devices, agenda materials printed in Braille or large print, a signer for the hearing impaired, etc., will
be accommodated. Such special services are available upon prior request to the Town Clerk at least 10
working days prior to the Council meeting.
CALL TO ORDER AND ROLL CALL
PLEDGE OF ALLEGIANCE/INVOCATION/MOMENT OF SILENCE
APPROVAL OF AGENDA
DISCUSSION/DIRECTION/POSSIBLE ACTION
Resolution No. 2010-98: Relating to the Marana Municipal Airport; approving and
authorizing the Town Manager to execute a grant amendment with the Arizona
Department of Transportation (Grant No. ESS80) extending the expiration date to
December 31, 2010 (T VanHook)
Presentation: Relating to Environment; presentation on the results of the Town of
Marana's Greenhouse Gas Emissions Inventory (Jennifer Christelman)
Discussion regarding HB2246 and the Town Council's ability to regulate the use of
consumer fireworks within the Town limits as of November 30, 2010 (Caine Sklar)
Presentation: Relating to Capital Improvement Projects; update on the Twin Peaks
Interchange and Twin Peaks Road/Camino de Mariana Ribbon Cutting/Celebration
Study Session -October 12, 2010 -Page 1 of 49
(Ryan Benavides)
Presentation: Relating to Technology Services; providing a presentation and update
on the redesign of the Town of Marana Internet Website (Deb Thalasitis)
Executive Session pursuant to A.R.S. §38-431.03 (A)(3), Council may ask for discussion or
consultation for legal advice with the Town Attorney concerning any matter listed on this agenda.
ADJOURNMENT
Study Session -October 12, 2010 -Page 2 of 49
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11555 W. CIVIC CENTER DRIVE, MARANA, ARIZONA 85653
COUNCIL CHAMBERS, October 12, 2010, 6:00:00 PM
To: Mayor and Council Item D 1
From: T VanHook ,Community Development Director
Strategic Plan Focus Area:
Not Applicable
Subject: Resolution No. 2010-98: Relating to the Marana Municipal Airport; approving and
authorizing the Town Manager to execute a grant amendment with the Arizona
Department of Transportation (Grant No. ESS80) extending the expiration date to
December 31, 2010
Discussion:
In January 2005 the Town executed a grant agreement (ADOT Grant Number ESS80) with the
Arizona Department of Transportation to fund the environmental study required to acquire nearly
250 acres of land at the Marana Municipal Airport for the Runway Protection Zones of the
extended Runway 3-21, Runway 12R-30L, and Runway 12.
Although much of the work was completed during the initial funding period, delays with reviews
required by the Federal Aviation Administration and other unforeseen setbacks did not allow the
Town to fully expend the allocation prior to the June 30, 2010 deadline. Per the Town's June 1,
2010 request, ADOT is offering an extension of the grant agreement through December 31,
2010. Staff are working with consultants to ensure that the ADOT funded portion of the project
is completed on or before the end of the proposed extension.
Financial Impact:
Match for the project has been included in the CIP for 2010-2011.
ATTACHMENTS:
Name:
Description:
Type:
O Airport -
_ADOT E5S80_Amendment_Resolution_9- ADOT E5S10 Amendment Resolution Resolution
zoo ol~ l.doc
~ Grant Amendment_5_Time.pdf
~ Amendment 5_E5S80.pdf
ADOT E5S10 Amendment
ADOT E5S10 Amendment Cover Letter
Exhibit
Exhibit
Staff Recommendation:
Staff recommends approval of Resolution No. 2010-98 approving and authorizing the Town
Study Session -October 12, 2010 -Page 3 of 49
Manager to execute a grant amendment with the Arizona Department of Transportation (Grant
No. ESS80) extending the expiration date to December 31, 2010.
Suggested Motion:
I move to adopt Resolution No. 2010-98, authorizing the Town Manager to execute a grant
amendment with the Arizona Department of Transportation (Grant No. E5S80) extending
the expiration date to December 31, 2010.
Study Session -October 12, 2010 -Page 4 of 49
MARANA RESOLUTION N0.2010-98
RELATING TO THE MARANA MUNICIPAL AIIZPORT; APPROVING AND
AUTHORIZING THE TOWN MANAGER TO EXECUTE A GRANT AMENDMENT WITH
THE ARIZONA DEPARTMENT OF TRANSPORTATION (GRANT NO.
ESS80) EXTENDING THE EXPIRATION DATE TO DECEMBER 31, 2010
WHEREAS, A.R.S. § 28-8411 authorizes the Town Council of the Town of Marana to
undertake all activities necessary to acquire, establish, construct, own, control, lease, equip,
improve, maintain, operate and regulate an airport; and
WHEREAS, the Town of Marana executed a grant agreement on January 11, 2005 with
the Arizona Department of Transportation (ADOT) to fund an environmental assessment on
nearly 250 acres of land at the Marana Municipal Airport for the Runway Protection Zones of the
extended Runway 3-21, Runway 12R-30L, and Runway 12; and
WHEREAS, ADOT is offering an amendment to the grant agreement extending the
expiration date until December 31, 2010 to allow the Town to complete work started under the
agreement.
NOW, THEREFORE, BE IT RESOLVED BY THE MAYOR AND COUNCIL OF THE
TOWN OF MARANA, ARIZONA, that the Town Manager is authorized to execute a grant
agreement amendment and take any appropriate actions required to complete the requirements
for funding under ADOT Grant No. ESS80.
PASSED AND ADOPTED BY THE MAYOR AND COUNCIL OF THE TOWN OF
MARANA, ARIZONA, this 12th day of October 2010.
Mayor Ed Honea
ATTEST:
Jocelyn C. Bronson, Town Clerk
APPROVED AS TO FORM:
Frank Cassidy, Town Attorney
Study Session -October 12, 2010 -Page 5 of 49
Arizona Department of Transportation
Multimodal Planning Division
Aeronautics Group
Airport Development Reimbursable Grant Agreement
Amendment Number 5
AMENDMENT to the Airport Development Reimbursable Grant Agreement ESS80 dated January
19, 2005, between the STATE OF ARIZONA, acting. by and through its DEPARTMENT OF
TRANSPORTATION, through its Multimodal Planning Division (the "State") and the Town of
Marana, a political subdivision of the State of Arizona ("the Sponsor").
AGREEMENT
The Airport Development Agreement dated January 19, 2005, is amended as follows:
1. Paragraph 4 of the Obligations is replaced by the following:
The State's obligation to provide funds hereunder expires upon completion of the efforts
required herein or December 31, 2010, whichever is earlier.
2. All other provisions of the Airport Development Agreement remain applicable and
unchanged except as herein modified.
3. This Airport Development Agreement Amendment is effective upon the signature of the
representative of the State.
Study Session -October 12, 2010 -Page 6 of 49
Page 1 of 2
IN WITNESS WHEREOF, the parties hereto have caused this agreement to be executed by their
duly authorized respective officers.
STATE:
State of Arizona
Department of Transportation
Multimodal Planning Division
By:
Title: Jennifer Toth, Director
Date:
WITNESSED BY:
Signature:
Print Name:
Date:
Study Session -October 12, 2010 -Page 7 of 49
SPONSOR:
Town of Marana
Marana Regional Airport
Signature:
Title:
Date:
WITNESSED BY:
Signature:
Print Name:
Date:
Page 2 of 2
~rizc~n~ ~e}~~r~rr~en~ of Tr~r~~p~+~r~~tiran
Multimodal Planning Division
nQ~~- 206 South Seventeenth Avenue Phoenix, Arizona 85007-3213
Janice K. Brewer
Governor
September 24, 2010
Jennifer Toth
Division Director
John S. Halikowski
Director
Ms. T Vanhook
Community Development Director
Town of Marana
11555 West Civic Center Drive
Marana, AZ 85653
Re: Airport Development Grant Agreement - EA for Land Acquisition
ADOT Grant Number ESS80
Marana Regional Airport
Via email
Dear Ms. Vanhook:
Attached herein, you will find Amendment Number 5 for ESS80. This amendment will extend the
expiration date to December 31, 2010 as requested.
Please print, sign, and return two copies of the amendment to my attention. Upon execution by the
ADOT, a fully executed copy will be returned to you.
If you have any questions, please feel free to contact me at KPotts@azdot.gov or (602) 712-7597.
Sincerely,
z~~~ s. ~~
Kenneth S. Potts, A.A.E.
Airport Projects Planning Manager
Attachments (1)
Study Session -October 12, 2010 -Page 8 of 49
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11555 W. CIVIC CENTER DRIVE, MARANA, ARIZONA 85653
COUNCIL CHAMBERS, October 12, 2010, 6:00:00 PM
To: Mayor and Council Item D 2
From:. Jennifer Christelman ,Environmental Engineering Division Manager
Strategic Plan Focus Area:
Not Applicable
Subject: Presentation: Relating to Environment; presentation on the results of the Town of
Marana's Greenhouse Gas Emissions Inventory
Discussion:
Resolution 2009-131 authorized Town staff to coordinate with Pima Association of Governments
(PAG) to complete a greenhouse emissions inventory for the Town of Marana.
The presentation will provide the results of the Greenhouse Gas Emissions Inventory completed
by for the Town of Marana and the efforts on reduction.
Financial Impact:
The inventory was completed by PAG. The future work on energy efficiency and conservation
will be completed using the funding provided through the Energy Efficiency and Conservation
Grant.
ATTACHMENTS:
Name:
^ Greenhouse_Gas Emissions_Councl_Presentation.ppt
Description: Type:
Greenhouse Gas Emissions Inventory Backup
PowerPoint Presentation Material
~ PAG_Final_Rept_Marana Greenhouse_Gas_6 22_10.pdf Greenhouse Gas Emissions Inventory Report Backup
Materia4
Staff Recommendation:
None
Suggested Motion:
None
Study Session -October 12, 2010 -Page 9 of 49
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June 2010
Pima Association o Governments
Study SessifFYt'-~{3c[ober 12,~{l~A-page 19 of 49
PIMA ASSOCIATION OF GOVERNMENTS
Chair
Ned Norris Jr.
Chairman
Tohono O'odham Nation
Member
Robert Walkup
Mayor
City of Tucson
Member
2010 REGIONAL COUNCIL
Vice Chair
Jennifer Eckstrom
Mayor
City of South Tucson
Member
Ed Honea
Mayor
Town of Marana
Member
Treasurer
Satish I. Hiremath
Mayor
Town of Oro Valley
Member
Robert Valencia
Vice Chairman
Pascua Yaqui Tribe
Member
Ramon Valadez Stephen W. "Steve" Christy Lynne Skelton
Supervisor Representative Mayor
Pima County Board of Supervisors AZ State Transportation Board Town of Sahuarita
MANAGEMENT COMMITTEE
Fred Stevens, Project Specialist, Tohono O'odham Nation
Enrique Serna, Manager, City of South Tucson
Jerene Watson, Interim Manager, Town of Oro Valley
Richard Miranda, Deputy Manager, City of Tucson
Gilbert Davidson, Manager, Town of Marana
Francisco Valencia, Secretary, Pascua Yaqui Tribe
Chuck Huckelberry, Administrator, Pima County
Jim Stahle, Manager, Town of Sahuarita
James Zumpf, Asst. Director of Statewide Planning, ADOT - Multimodal Planning Division
Todd Emery, Ex-Officio Member, ADOT-Tucson District Engineer
EXECUTIVE DIRECTOR
Gary G. Hayes
DIRECTOR OF PLANNING
Andy Gunning
AIR QUALITY PLANNING STAFF:
Lee Comrie, Air Quality Planning Manager
Susanne Cotty, Air Quality Planner
June 2010
Study Session -October 12, 2010 -Page 20 of 49
TABLE OF CONTENTS
ACKNOWLEDGMENTS .........................................................................................................................3
LIST OF ACRONYMS .......................................................... ...........................................................................................4
1. Executive Summary ..................................................... ...........................................................................................5
2. Introduction ................................................................... ...........................................................................................5
3. Project Objectives ........................................................ ...........................................................................................6
4. General Methodology ................................................. ...........................................................................................6
5. Detailed Methodology and Preliminary Results ...........................................................................................8
A. Marana Community ...........................................................................................................................................8
B. Marana Government Operations Inventory ............................................................................................14
6. Conclusions .............................................................................................................................................................17
LIST OF FIGURES
Figure 1. Comparison of Marana Greenhouse Gas Emissions by Sector 2007 and 2008 ...................10.
Figure 2.2008 Marana Greenhouse Gas Emissions by Sector ....................................................................12
Figure 3.2008 Marana Greenhouse Gas Emissions by Source ...................................................................12
Figure 4.2008 Marana Government GHG Emissions by Sector ..................................................................14
Figure 5.2008 Marana Government GHG Emissions by Source ................................................................15
LIST OF TABLES
Table 1. Marana Greenhouse. Gas Emissions (metric tons COze) and Energy Use (million Btu) 2007
and 2008 ..............................................................................................................................................................11
Table 2. Marana Government Greenhouse Gas Emissions (metric tons COze), Energy Use (million
Btu) and Expenditures (dollars) 2008 .........................................................................................................15
Table 3. Summary of Marana Government's Recycled Waste Activity and Emissions and Energy
Savings 2008 ......................................................................................................................................................17
APPENDICES
Appendix A. Data Sources
Appendix B. Population Estimates
Appendix C. Emission Factors for Electricity Use
Appendix D. Marana Community Data Inputs
Appendix E. Waste Characterizations
Appendix F. EPA's WARM Model GHG Emission Factors for Alternative Management Scenarios
Appendix G. Town of Marana Government Inventory Data Inputs
Study Session -October 12, 2010 -Page 21 of 49 2
ACKNOWLEDGMENTS
Numerous representatives from various organizations have contributed to the production of this
report and their efforts are greatly appreciated. We extend a special note of thanks to the
Marana staff for their contributions. Additionally, various members of Pima Association of
Governments, Pima County, Tucson Electric Power (TEP), Trico Electric Cooperative, Arizona
Electric Power Cooperative, Southwest Gas, Marana Regional Airport and the Arizona
Department of Commerce -Energy Office, provided data and guidance in compiling this report.
A full list of contributors is contained in Appendix A. In addition, we'd like to thank the Pima
County Department of Environmental Quality for continued access to the CACP emissions
model.
PAG would especially like to thank Jennifer Christelman, Marana's Manager of Environmental
Engineering Division, for her assistance in the planning and coordination of staff resources
needed to complete this project.
Study Session -October 12, 2010 -Page 22 of 49
LIST OF ACRONYMS
Btu British thermal units
CACP Clean Air and Climate Protection model
CHa Methane
COz Carbon dioxide
COze Carbon dioxide equivalents
DOE Department of Energy
EIA Energy Information Administration (department within DOE)
GHG Greenhouse gas
GWh Gigawatt hours (1,000,000 KWh)
HFC Hydrofluorocarbons
ICLEI International Council for Local Environmental Initiatives
IPCC Intergovernmental Panel on Climate Change
KWh Kilowatt hours
MMBtu Million British Thermal Units
MWh Megawatt hours (1,000 KWh)
Nz0 Nitrous oxide
PAG Pima Association of Governments
PFC Perfluorocarbons
RCI Residential, Commercial and Industrial sectors
SF6 Sulfur hexafluoride
TEP Tucson Electric Power
USEPA U.S. Environmental Protection Agency
VMT Vehicle Miles Traveled
WARM EPA's Waste Reduction Model
Study Session -October 12, 2010 -Page 23 of 49 4
1. Executive Summary
The Pima Association of Governments' Regional Council approved a resolution directing PAG
staff to conduct a greenhouse gas (GHG) emissions inventory for eastern Pima County. Upon
completion of the initial Regional GHG Inventory (PAG, 2008), representatives of Marana's
government expressed an interest in joining regional efforts to estimate GHG emissions.
Subsequently, PAG staff in cooperation with Marana staff developed inventories for its
community and government operations.
This report presents initial estimates of historical and current anthropogenic GHG emissions for
2007 and 2008 for the Marana community (hereinafter referred to as the Community) and the
2008 emissions for its government operations (hereinafter referred to as the Government). Due
to lack of actual data, some of the 2007 and 2008 values are estimates based on recent energy
use data and are heavily weighted by Marana's population data. It is included here at the request
of Marana staff.
These estimates are intended to provide town stakeholders with a preliminary understanding of
past and current regional GHG emissions and to serve as a basis for analyzing and designing
possible mitigation plans and strategies.
Marana's population has more than doubled from 2000 to 2008, and, from 2007 to 2008, the
population grew by 5 percent with an estimated concurrent 9 percent increase in GHG
emissions. By comparison, eastern Pima County's population grew by less than 1 percent and its
emissions decreased by almost 2 percent, over this same two-year period.
Modeling analyses conducted for 2008 estimated that the Community produced about 842,000
metric tons of carbon dioxide equivalents (COze), about 5 percent of eastern Pima County's total.
Community transportation and energy use were the largest contributors to GHG emissions.
Transportation emissions were 63 percent of the 2008 total, almost entirely the result of personal
and commercial vehicle use. In 2008, the combined energy use by the residential, commercial
and industrial sectors was 37 percent of total emissions; of these emissions, 88 percent resulted
from electricity use. Emissions generated by all electricity use comprised 32 percent of the 2008
total while natural gas contributed 4 percent.
Waste-related emissions were a minor contributor to total emissions, generating less than 1
percent of 2008 emissions.
In 2008, Government operations produced about 8,400 metric tons of COze, representing about
1 percent of the total Community emissions. Facility energy use (58 percent) and vehicle fleet
emissions (17 percent) were the chief sources of emissions with employee commuting
generating 14 percent of the total. Energy used in water handling and public lighting and waste
generation each produced less than 10 percent of 2008 emissions. Electricity was the major form
of energy consumed and was responsible for 68 percent of Government emissions in 2008.
2. Introduction
This report presents estimates of 2007 and 2008 Community and 2008 Government
anthropogenic GHG emissions, using generally accepted principles and guidelines contained in
the International Council for Local Environmental Initiatives (ICLEI) Clean Air and Climate
Protection (CACP) 2003 software for local GHG emissions. These estimates are intended to
Study Session -October 12, 2010 -Page 24 of 49
provide town stakeholders with an initial understanding of current regional GHG emissions to
guide in analyzing and designing GHG mitigation strategies.
Three major greenhouse gases are included: [carbon dioxide (COz), methane (CHa) and nitrous
oxide (Nz0)], as in the eastern Pima County and Tucson (hereinafter referred to as City) GHG
inventories (PAG, 2008, 2009 and 2010). These greenhouse gases are emitted largely from the
burning of fossil fuels such as coal, natural gas, gasoline and diesel. Emissions of these individual
greenhouse gases are expressed as COzequivalents (COze), indicating the relative contribution
of each gas weighted according to its relative contribution to global climate change.
Unlike the state and national inventories, hydrofluorocarbons (HFCs) perfluorocarbons (PFCs),
and sulfur hexafluoride (SF6) are not included. Local fluorinated hydrocarbons emissions are
expected to represent a very small proportion of total greenhouse gases.
3. Project Objectives
In October 2007, the PAG Regional Council approved a resolution to conduct a GHG emissions
inventory for eastern Pima County. The goal of this resolution is to provide GHG emissions
inventories to assist the jurisdictions and government agencies in assessing emissions and serve
as a resource in developing GHG reduction strategies. Upon completion of the initial Regional
Greenhouse Gas Inventory, Marana officials expressed an interest in joining regional efforts to
estimate GHG emissions. Subsequently, Marana staff cooperated with PAG to develop
Community and Government inventories.
This inventory is not meant to be a precise accounting of GHG emissions but is designed to
provide a resource for Community planning in the future. It is important to note that this report
has not been validated by an independent party and is not a tool designed for developing
regulations. Care also should be exercised in comparing the results of this inventory to those
done by other communities since the sources analyzed and/or the greenhouse gases included
are likely to be different.
4. General Methodology
Communitylnventory
To prepare the Community GHG emissions inventory, three major emission sources were
considered: energy consumption, transportation and waste generation. Energy use was
segregated into residential, commercial and industrial sectors' electricity and natural gas use.
Transportation from on-road vehicles was disaggregated by vehicle type and fuels used. Waste
totals were factored by disposal method and composition. In addition, aviation fuel use from
Marana Regional Airport and Community propane consumption are included in the report.
Local data and emissions factors were used whenever possible. Assumptions used in compiling
the data and estimating emissions are detailed in Section 5.
Using the CACP model and emission factors, as appropriate, GHG emissions were estimated for
2007 and 2008. Due to lack of historic information, some of the 2007 and 2008 data inputs are
based on recent estimates of energy use and are heavily weighted by Marana's population data
(Appendix D). It is included here at the request of Marana staff and serves as an approximate
baseline, tracking the impact of the Community's growth on GHG emissions over this period.
Study Session -October 12, 2010 -Page 25 of 49
Local energy use, vehicle miles traveled (VMT) and waste data from 2007 and 2008 were entered
into the model and converted to COZe emissions using specific emission factors or coefficients.
These emission factors specify the amount of greenhouse gases produced per unit of energy
used, miles traveled and waste generated.
Annual electricity emission factors were calculated using emissions data from TEP generating
resources and were supplied by TEP staff for 2007 and 2008 (Appendix C). These factors were
applied to TEP use data to determine COZe for the various years.
Trico emission factors were supplied by Arizona Electric Power Cooperative staff for 2007and
2008 (Appendix C). These factors were applied to Trico's use data to determine COZe emissions.
Emissions from TEP and Trico electricity use are combined by sector and labeled "Electricity"
(Table 1), but separate consumption values are detailed in Appendix D.
To evaluate emissions from natural gas consumption, usage data was entered into the CACP
model which converts therms of natural gas into COze emissions, using coefficients from the
Department of Energy's Voluntary Greenhouse Gas Emissions Reporting Guidelines at
http~/lwww.eia.doe.gov/oiaf/1605/flash/flash.html.
Emissions from natural gas and electricity use are based on end-use energy consumption, not on
the emissions resulting from the production of that energy. For example, emissions from
electricity consumed by residential, commercial and industrial sectors are reported, not
emissions due to combustion of fuel at electric generation facilities.
Emissions from on-road vehicle fuel use are calculated for gasoline and diesel. Data are entered
as VMT per year for each type of vehicle by fuel type. Model default fuel economies for each
vehicle/fuel combination are used and are based on the Energy Information Administration (EIA)
Energy Data book and Tellus Institute research. Default emission factors depend on the type of
fuel used and are derived from the U.S. Environmental Protection Agency (USEPA) data and the
Intergovernmental Panel on Climate Change (IPCC) guidelines.
The CACP model estimates emissions resulting from waste disposal in landfills located within a
jurisdictional boundary. Marana however, does not have landfills but sends its waste to Pima
County's landfills for disposal. Therefore, Community emissions attributed to wastes represent
those from generation, not disposal. The waste emission factors used in this inventory were from
an EPA evaluation, updated in August 2002.
GHG emissions and energy reductions resulting from waste diversion were estimated using
EPA's Waste Reduction Model (WARM) (USEPA, 2009). The model uses alife-cycle approach
accounting for emissions avoided in producing replacement materials (upstream) and disposal-
related emissions (downstream). Calculations are based on a comparison of the COZe emissions
and energy use that would be incurred if materials were landfilled and the savings realized
through alternative waste management practices (e.g. recycling, composting).
Emissions generated by aviation gasoline and Jet A use at Marana Regional Airport were
determined using Department of Energy emission factors (EIA, 2009). Propane use emissions
were estimated using factors imbedded in the CACP model. Emissions generated from these
three sources are evaluated separately and included in the "Other" category.
PAG's Air Quality Planning staff prepared these analyses in close consultation with
representatives of Marana, TEP, Trico and Southwest Gas. Additionally, PAG's transportation
Study Session -October 12, 2010 -Page 26 of 49 ']
planning and technical services staff, and representatives from Marana Regional Airport and the
Arizona Department of Commerce provided data for this report (See Appendix A for a complete
list of contributors). Technical guidance was provided by the ICLEI staff who, in cooperation with
the National Association of Clean Air Agencies and Torrie Smith Associates, developed the
inventory software used in this report.
Government Operations Inventories
To prepare the Government GHG emissions inventory, three major emission sources were
considered: energy consumption, on-road vehicle use and waste generation. Additionally, the
Government inventory includes expenditure data for each source category, as available.
Electricity and natural use data, as applicable, for facilities, water handling and public lighting are
provided for 2008. All energy use data were compiled and analyzed using the CACP software, as
in the Community inventory. Electricity emissions from TEP and Trico are combined in the
facilities, water and public lighting categories and labeled "Electricity" (Table 2), but separate
consumption values are detailed for each utility in Appendix G.
On-road vehicle travel included VMT by the Government fleet and employee commuting, and
were disaggregated by vehicle and fuel type. Gasoline and diesel emissions generated by the
Government fleet and employee commuting are included. As in the Community inventory,
emissions generated by Government vehicle travel and employee commuting were determined
using the U. S. Department of Energy's Voluntary Greenhouse Gas Emissions Reporting
Guidelines' coefficients http:llwww.eia.dae.ov/aiaf/16051f1ash/flash.html.
As in the Community inventory, waste data were factored by disposal method and composition
and emissions were estimated using EPA's emission factors. Government recyclables tonnage
was provided but a detailed description of the materials was not included. Therefore,
Government recyclable materials were characterized using the most recent data available from
City curbside collections (Gibson, 2009).
PAG's Air Quality Planning staff prepared these analyses in close consultation with Marana town
staff.
5. Detailed Methodology and Preliminary Results
The CACP model is designed to include government emissions within the community inventory
but provides the option of examining government operations separately providing a more
detailed analysis of government-generated emissions. Therefore, two inventories are described
in this section: the Marana community (Community) and Marana government operations
(Government).
A. Marana Community
Residential, Commercial and Industrial (RCI) Sector Energy Use
Energy use for the RCI sectors includes natural gas and electricity only. Other fuel sources such as
heating oil and wood are not included in this inventory.
Study Session -October 12, 2010 -Page 27 of 49 8
The residential sector is based on household energy use for activities such as heating, cooling
and lighting. The industrial sector includes energy use by mining and agriculture and
incorporates activities such as manufacturing, production and factory operations. The
commercial sector encompasses fuel and electricity used in non-residential buildings such as
schools, hospitals and retail facilities. Government-owned facilities and institutional activity also
are included in this sector.
RCI electricity consumption data totals for 2007 and 2008 were submitted by TEP and the
corresponding emission factors (Appendix C) were applied to use data to estimate emissions.
TEP electricity consumption data is aggregated into customer classes based on average annual
energy use, not necessarily by customer operations. Therefore, the industrial class may include
some large commercial operations, and the commercial class may include some small industrial
operations.
Trico staff submitted electricity use data by District total for 2007 and 2008. Using GIS mapping
techniques, PAG Technical Services staff determined that Marana occupied 17 percent of the
area in Trico's District 1 for both of the inventory years. Based upon guidance from Trico staff
and Marana's estimated portion of Trico's District 1, the following methods were used to
estimate Trico electricity usage:
• Total Marana usage was estimated using 17 percent of District 1 electricity consumption
for each of the survey years;
• Total Marana District 1 electricity use (KWh) was segregated by sector as follows:
residential (66 percent); commercial (29 percent) and industrial (5 percent),
corresponding to the Trico usage patterns in eastern Pima County for 2007 and 2008;
• Trico emission factors (2007 and 2008) were applied to the use data to estimate annual
emissions.
Southwest Gas staff provided RCI natural gas use data for 2008 and 2009. To estimate 2007
residential use, the 2008 residential use (51.1 therms/capita) was applied to the 2007 Marana
population level (Appendix B).
To estimate 2007 commercial natural gas consumption, an average per commercial customer
rate was developed using 2008 Marana's Southwest Gas data (15,427 therms/customer/year).
Based upon the 13 percent increase in the commercial Southwest Gas customer number from
2008 to 2009, the rate was held constant and projected backward to 2007. Using this method,
we estimated there were 279 commercial Community customers in 2007; the average
commercial therm rate/year was applied to the 2007 customer estimate.
No reliable method could be devised to estimate 2007 industrial natural gas use due to only one
reported industrial customer and its 150 percent increase in use from 2008 to 2009. Thus, the
industrial natural gas consumption was held constant for 2007 and 2008.
Given the absence of certain data and the methods used to estimate energy consumption,
caution should betaken in deriving detailed inferences from the 2007 to 2008 trends in GHG
energy-related emissions (Figure 1). However, the estimated trends in RCI energy use can serve
as possible surrogates for reflecting energy-related emission impacts of Marana's rapid
population growth from 2007 to 2008 (Table 1).
Study Session -October 12, 2010 -Page 28 of 49 9
RCI electricity and natural gas use emissions were 37 percent of total 2008 Community
emissions. Of the three sectors, residential and commercial users were the largest contributors to
energy emissions (Figure 2). Electricity is the major source of energy and represented 32 percent
of all 2008 emissions, while natural gas contributed about 4 percent (Figure 3).
Figure 1. Comparison of Marana Greenhouse Gas Emissions by Sector 2007 and 2008
1,000,000
0
r
.L 800,000
a+
GJ
£ 600,000
N
~° 400,000
N
aEi 200,000
d
N
Q 0
V
2007 Year 2008
Transportation Residential Energy Use Commercial Energy Use
Industrial Energy Use Waste Generation
On-Road Transportation
Emissions from on-road vehicle activity are reported here; travel and fuel use by nonroad
vehicles and equipment (tractors, bulldozers and lawnmowers) are not presented in this report.
Information on Community VMT for 2007 and 2008 were developed using PAG's travel demand
forecasting model. PAG's current travel model is a standardized four-step procedure model that
covers trip generation, trip distribution, mode choice and traffic assignment. Based on the
ICLEI's staff recommendations, the U.S. average CACP model defaults were used to apportion the
local vehicle mix.' Specifically, 93 percent of the vehicles were assumed to begasoline-powered
and 7 percent were assumed to be diesel.
From 2007 to 2008, private and commercial vehicle VMT increased by 10 percent, resulting in a 9
percent increase in GHG emissions. Nationally carbon dioxide transportation emissions dropped
by 6 percent over this same period (EPA, 2010). Due to higher fuel prices and the recent
economic downturn, one might expect to see a similar trend in the Community as observed
nationally. However, the 2007-2008 increases in Community VMT and emissions reflect the
transportation model's lack ofsensitivity toshort-term economic changes such as fuel cost and
employment fluctuations.
Pima County staff provided Marana Rural Transit VMT data for 2007 and 2008 by fuel type. Over
this two-year period, Rural Transit VMT decreased by 10 percent, resulting in a 12 percent drop in
emissions (Table 1).
Overall, transportation-related emissions increased by 9 percent from 2007 to 2008 and were 63
percent of the 2008 total (Figure 2). Marana's relatively high fraction of transportation emissions
' Model default vehicle mix: Gasoline: auto (full-size)-8.5 %; auto (mid-size) 18.7%; auto (compact/subcompact) -33
%; light trucks/SUV/pickup - 32.4%; motorcycle - 0.4 %. Diesel: auto (compact/subcompact) - 0.3%; light
truck/SUV/pickup -1.3%; heavy truck - 5.2%; bus - 0.2%
Study Session -October 12, 2010 -Page 29 of 49 1 Q
can be attributed to the amount of Interstate travel that occurs within the Town's boundaries. A
significant portion of the urbanized region of I-10 (16 miles) lies within the Marana jurisdictional
limits and this travel is assigned to Marana by the transportation forecasting model. Since
Community per capita energy use is comparable to that of the County, transportation emissions
assume a relatively larger portion of the total due to the impact of apportioned I-10 travel.
Gasoline was the predominant transportation fuel and contributed 53 percent to 2008
emissions, while diesel contributed a smaller amount, about 11 percent (Figure 3).
Table 1. Marana Greenhouse Gas Emissions (metric tons COZe) and Energy Use (million Btu) 2007
and 2008
2007 Zoos
Percent
COZe COZe Change
(metric (metric COze 2007-
tons) MMBtu tons) MMBtu 2008
Residential Energy Use
Natural Gas 9,239 1 E,4,840 9,660 172,348 5
Electricity 122,800 482,157 121,198 480,903 -7
Residential Total 132,039 646,997 130,858 653,251 -1
Commercial Energy Use
Natural Gas 24,129 430,500 27,734 494,827 15
Electricity 72,723 285,845 96,032 381,843 32
Commercial Total 96,852 716,345 123,766 876,670 28
Industrial Energy Use
Natural Gas 76 1,354 76 1,354 0
Electricity 53,503 210,792 50,862 202,592 -5
Industrial Total 53,579 212,146 50,938 203,946 -5
Transportation
Private & commercial vehicle use 487,522 6,270,775 532,799 6,855,208 9
Other Transportation 49 627 43 562 -12
Transportation Total 487,571 6,271,402 532,842 6,855,770 9
Waste Generation Total 4,307 3,444 -20
Total 774,348 7,846,890 841,848 8,589,637 9
Other
Aviation Gas 124 1,750 120 1,697 -3
Jet A 229 3,200 223 3,154 -3
Propane 3,047 45,295 3,058 45,460 0
Shaded areas represent estimated values
Study Session -October 12, 2010 -Page 30 of 49 11
Figure 1.2008 Marana Greenhouse Gas Emissions by Sector
Waste
Generation
<1%
Transportatior
63%
Residential
Energy Use
~%
Commercial
Energy Use
15%
Industrial
nergy Use
6%
Figure 2.2008 Marana Greenhouse Gas Emissions by Source
Diesel Waste
11% ~ < 1%
Electricity
~ ` 32%
~~<
Natural Gas
Gasoline 4%
53%
Waste
Community waste data for 2007 and 2008 were not available. To estimate the Community's
waste production, annual landfilled totals from the Ina, Sahuarita, Tangerine and Los Reales
landfills were tabulated and used to estimate per capita County waste generation for both
survey years. County waste per capita for 2007 and 2008 were 0.891 short tons and 0.748 short
tons, respectively? These values were applied to Marana's 2007 and 2008 population levels to
estimate Community waste generation. Wastes were characterized using the average waste
composition from the four County landfills and Arizona and California waste studies (Cascadia,
2003; Cascadia, 2006) (Appendix E).
z 2008 EPA estimated U.S. per capita trash generation as 0.82 short tons/person/year
http://www.era.aovfosw/nonhazlmnicis~al/gui~sfmsw2048rpt.pdf
Study Session -October 12, 2010 -Page 31 of 49 i 2
Community waste emissions were a small component of GHG emissions, contributing less than 1
percent to the 2008 total (Figure 3). Community recycling data were not available.
Other
Emissions from aviation gas, Jet A and propane use are shown in Table 1 as "Other" but are not
included in the figures or in the total emissions to coincide with the protocol in PAG's Regional
GHG Inventory (PAG 2008, 2009 and 2010). Consumption data for these three fuels are shown in
Appendix D.
Aviation Fuels: Aviation Gas and Jet A
Aviation gas and Jet A use data were submitted by Marana Regional Airport staff for 2007 and
2008. Based upon airport GHG studies and Tucson International Airport staff recommendations,
only 10 percent of the total aviation gas and Jet A were used to calculate emissions generated in
the Community airshed. This 10 percent represents the fuel used during the landings and take-
off (LTO) phase.
EIA's emission factors for aviation gas (COz: 8.31 kg/gallon; CH4: 7.26 g/gallon; N20: 0.09 g/gallon)
and for Jet A fuel (COz: 9.57 kg/gallon: CH4: 0.27 g/gallon; NzO: 0.32 g/gallon) were used to
determine combustion emissions from fuels used at the Marana airport. Individual GHG
emissions were entered into the CACP model and are reported as COze totals. Emissions from
fuel use are reported as total COze by fuel type (Table 1). Both aviation gas and Jet A emissions
dropped by 3 percent over this two-year period.
Propane
State propane sales data for 2007 and 2008 were obtained from the Arizona Department of
Commerce -Energy Office (2009). As suggested by Energy Office staff, population data were
used as a surrogate to determine Community propane use from state sales totals for the various
inventory years.
Emissions were estimated using a propane coefficient factor contained in the CACP model.
Propane use and resulting emissions increased by less than 1 percent from 2007 to 2008
(Appendix D, Table 1).
Marana Community Inventory Synopsis
Community GHG emissions rose by an estimated 67,500 metric tons from 2007 to 2008,
representing a 9 percent increase. Transportation and energy use emissions were the major
sources of emissions. From 2007 to 2008, Community VMT increased by 10 percent and was
responsible for generating 63 percent of emissions in 2008. However, this increase in VMT and
resulting emissions may be an anomaly due to the insensitivity of PAG's transportation model to
short-term economic factors.
Gasoline was the major transportation fuel used and was responsible for 53 percent of 2008
emissions; diesel combustion emissions were a minor component of fuel use and contributed 11
percent to the total. Private and commercial vehicle use are responsible for virtually all of these
transportation emissions since currently Marana is not served extensively by public transit.
Study Session -October 12, 2010 -Page 32 of 49 13
Energy use by the RCI sectors was another significant source of Community emissions,
contributing 37 percent to the 2008 total. Community residential and commercial energy
consumption produced approximately equal amounts of GHG emissions. Electricity was the
major energy source and was responsible for 88 percent ofenergy-related emissions.
Emissions associated with Community solid waste generation represent a small fraction of
emissions, contributing less than 1 percent to the 2008 total.
B. Marana Government Operations Inventory
Emissions generated by Government operations for 2008 are summarized below. A detailed list
of data inputs for the Government inventory can be found in Appendix G.
Energy Use
In this section, energy use refers to activities such as water pumping and treatment, the heating,
cooling and lighting of Government facilities and public lighting. Emissions from Government
facilities, water pumping and public lighting energy use are presented separately in Table 2 and
in Figure 4, but are combined when comparing emissions by energy source (Figure 5).
Facility Energy Use
Marana staff supplied facility electricity and natural gas use and expenditures data for 2008.
These emissions are a significant source of Government emissions, contributing 58 percent to
the 2008 total (Figure 4). Almost all of these energy-related emissions (99 percent) can be
attributed to electricity use.
Figure 3.2008 Marana Government GHG Emissions by Sector
Public Lighting
5%
Water Energy
use Waste
6%
Employee
Commute-
14
Vehide Flee
17%
Facility Energy
Use
58%
Study Session -October 12, 2010 -Page 33 of 49 14
Figure 4.2008 Marana Government GHG Emissions by Source
Diesel Waste
3% <1%
Gasoline
28%
Natural Gas
1 % Electricity
68%
Table 2. Marana Government Greenhouse Gas Emissions (metric tons COZe), Energy Use (million
Btu) and Expenditures (dollars) 2008
2008
C02e
(metric
tons)
MMBtu
Cost
(dollars)
Facilities Ener Use
Electrici 4,850 19,275 497,318
Natural Gas 46 819 15,117
Facilities Ener Use Total 4,896 20,094 512,435
Water Ener Use
Electrici 485 1,871 58,001
Natural Gas 0 0 0
Water Energ Use Total 485 1,871 58,001
Vehicle Fleet
Gasoline 1,213 15,729 n.a.
Diesel 251 3,195 n.a.
Vehicle Fleet Total 1,464 18,924
Emplo ee Commute Total 1,146 14,793
Public Li htin Total 383 1,522 50,230
Government Solid Waste Total 16 2,663
Grand Total 8,390 57,204 623,329
0 = no use
n.a. =Data not available
Study Session -October 12, 2010 -Page 34 of 49 I S
Water Energy Use
Government staff provided Marana Municipal Water (MMW) electricity use and expenditure
information for 2008. MMW is not the sole provider of water to the community since Marana
water users also are serviced by Tucson Water, Cortaro Water Users Association, Metro Water,
Oro Valley Water and others. All Tucson Water energy-related emissions are included with the
City of Tucson's government emissions and the other water providers' emissions are included in
their respective Communities' commercial electricity and natural gas consumption emissions.
Unlike other local jurisdictions, the government's water energy-related emissions were a minor
source of GHG emissions (6 percent) (Figure 4), which is not unexpected since MMW provides
services to less than 15 percent of the Marana community (Beem, M. personal communication,
2010).
Public Lighting
Government staff provided street and traffic electricity use and cost data for 2008. Public
lighting emissions were a small component of the Government's emissions, contributing 5
percent to the annual total (Figure 4).
In 2008, electricity use by facilities, water pumping and public lighting was the major form of
energy consumed and was responsible for 68 percent of Government emissions; natural gas
emissions from facility use represented 1 percent of the 2008 total (Figure 5).
On-road Vehicle Travel
Vehicle Fleet
Government staff provided VMT and vehicle and fuel type data for 2008. Emissions from
Government fleet vehicle travel were responsible for 17 percent of total emissions.
Employee Commute
PAG's Travel Reduction Program (TRP) began in 1989 to reduce carbon monoxide levels and
traffic congestion in the Tucson metropolitan area. The program requires PAG staff to survey all
employers who have 100 or more employees at one site. The last survey was conducted in 2007
and this data was used in this report.
Marana employees' daily drive-alone, one-way VMT survey data was used to calculate annual
round-trip VMT for 2007. As recommended by ICLEI staff, a model default vehicle mix was used
to characterize Government commuting patterns a Employee commuting contributed 14
percent to 2008 Government emissions (Figure 4).
Gasoline was the predominant fuel used in the Government fleet and in employee commuting
and was responsible for producing 28 percent of the emissions; diesel consumption by fleet
vehicles generated 3 percent of total emissions (Figure 5).
s Commuter vehicle fleet mix: Gasoline -Auto: full-size/SUV/Pickup (36.4 percent); Auto: mid-size (18.8 percent)
Auto: compact/subcompact (44.8 percent)
Study Session -October 12, 2010 -Page 35 of 49 16
Government-generated Solid Waste
Government staff submitted waste tonnage for 2008, and it was characterized using information
from a Tucson government study (Hughes, et al, 1993) (Appendix E). Waste emissions were a
small component of Government emissions, contributing less than 1 percent to the 2008 total.
Government Operations'Diverted Wastes
Recycled waste totals were submitted by Government staff for 2008 (Table 3). Since a
description of Government's recyclables was not provided, the materials were characterized
using the most recent local recycling data available (Gibson, D., 2009) (Appendix E). Emissions
and energy savings were estimated using the EPA's WARM model (USEPA, 2009) the model's
emission factors can be found in Appendix F.
Table 3. Summary of Marana Government's Recycled Waste Activity and Emissions and Energy
Savings 2008
Recycled COZe Saved MMBtus
Government Collections Waste
(metric tons)
Saved
(metric tons)
2008 14.9 47 332
Marana Government Sepsis
In 2008, Government operations generated approximately 8,400 metric tons of COZe, about 1
percent of Community emissions. Over half of these emissions were from facility energy use,
with electricity comprising 99 percent of these energy emissions. Vehicle fleet travel (17
percent) and employee commuting (14 percent) were other significant sources of emissions.
Water (6 percent) and public lighting energy use (4 percent) and waste generation (less than 1
percent) were responsible for the remainder of 2008 GHG emissions.
6. Conclusions
In 2008, the Marana community produced 842,000 metric tons of GHG, about S percent of
eastern Pima County's total. From 2007 to 2008, Community GHG emissions rose by
approximately 9 percent corresponding to a 5 percent rise in population growth. As in the
County and City inventories, transportation and energy use, closely linked to population levels,
contributed significantly to GHG emissions. However, the relative proportion of the Marana's
emission sources was notably different from the County's and City's, due to the impact of I-10
associated- travel within Marana's boundaries.
County and City GHG inventories estimated transportation emissions at about one-third of the
2008 total (PAG 2008, 2009 and 2010) while transportation emissions for Marana were almost
two-thirds of the total. Marana's relatively high fraction of transportation emissions can be
attributed to the sizable portion of the urbanized I-10 that lies within Marana's boundaries and
is assigned to Community by the transportation forecasting model.
Study Session -October 12, 2010 -Page 36 of 49 1']
In 2008, Marana per capita energy use was comparable to the County's and City's consumption
rates. However, Marana's relative proportion of energy use emissions (37 percent) was dwarfed
by the large contribution from transportation.
Government operations produced about 8,400 metric tons of COze, representing about 1
percent of the 2008 Community emissions. As with the Community inventory, the Government
inventory exhibited similarities and differences as compared to other government inventories in
the Tucson region (PAG 2008, 2009 and 2010).
Similar to other jurisdictions, Marana's government facility energy use was a major contributor
to GHG emissions. Electricity was the main energy source for its operations and was responsible
for the majority of Government's emissions. Likewise, Government's vehicle fleet, employee
commuting, public lighting and waste emissions were minor contributors to the total emissions
as in other regional jurisdictions.
Unlike other local government inventories, Marana's water-related energy use emissions were
responsible for a small portion of its 2008 total. In Marana, the municipal water department
services about 15 percent of the Community, thus using less energy and producing relatively
lower GHG emissions. The majority of Marana's water delivery and wastewater treatment is
provided by other jurisdictions.
This report provides GHG emission estimates for the Marana community and government
operations for 2007 and 2008. It provides baseline information and identifies the major sources
of community and government emissions. The report can serve as a guide to assist the Town and
government agencies in evaluating emissions and assist them in developing programs and
policies to reduce GHG emissions.
References Cited
Arizona Department of Commerce, Energy Office. First Sales of Petroleum Products into Arizona
for Consumption. 2009. htt :ffwww.azcommerce.com/doclib/ener f etrosales. df
Arizona Department of Economic Security. Population Estimates for Arizona's Counties,
Incorporated Places and Balance of County. 2009.
ht~:!lwww.azcommerce.comfdoclibleconinfo/FILES/estimates1980 2008.x1s
Beem, M. Marana Municipal Water Department. Personal communication. 2010.
Cascadia Consulting Group Inc., Characterization of Waste from Single-family Residences. Report
for the City of Phoenix Public Works Department. 2003.
Cascadia Consulting Group Inc., Waste Disposal and Diversion Findings for Selected Industry
Groups. Contractor's Report to the California Integrated Waste Management Board. 2006.
Energy Information Administration (EIA), Department of Energy. Fuel Emission Factors. 2009.
htt :ffwww.eia.doe. ovfoiaff 1 b05 excel Fue!°1o20Emission°Io20Factors.xls
Gibson, D. City of Tucson. Personal communication. 2009.
Hughes, W.W., Tani, M., Aller, S. and Rathje, W.L. A Characterization of the Solid Wastes of City of
Tucson Governmental Agencies. 1993.
Study Session -October 12, 2010 -Page 37 of 49 1 g
Pima Association of Governments. Regional Greenhouse Gas Inventory. 2008.
ham://www.a net.orgfdocuentsfAirfGreenHouseGas-2008-11-Inventory.r~df
Pima Association of Governments. Regional Greenhouse Gas Inventory Addendum and
Appendices. 2009.
tt : www. a net.or (documents Air GreenFiouseGas-2009-10-Addendum. df
tt :/(www. a net.or /documents Air Greeni•ioseGas-2009-10-A endixRevisions, df
Pima Association of Governments. Regional Greenhouse Gas Inventory 1990 to 2008.2010.
U. S. Census Bureau. 2008. httta:f/www.census.ctOVfpoestfstatesftablesfl°~ST-ST2008-0.x1s
U.S. Environmental Protection Agency (USEPA) Municipal Solid Waste Generation, Recycling and
Disposal in the United States: Facts and Figures for 2008.
htt :ffwww.e a. ovlosw/nonhazfmunici alf alas/msw2008r t. df
U. S. Environmental Protection Agency (USEPA). Waste Reduction Model (WARM). 2009.
h~:ffwww.epa.slovfcliatechangefw c~dfwastelcalclatorsflNarm ome.htrt~i
U. S. Environmental Protection Agency (USEPA). Inventory of U.S. Greenhouse Gas Emissions and
Sinks:1990-2008. U.S. EPA # 430-R-10-0062010.2010.
htt :ffe a. ovlclimatechan e emissions usinventor re ort.html
Study Session -October 12, 2010 -Page 38 of 49 ) 9
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Appendix B. Population Estimates 2000, 2007 and 2008
Eastern
United Pima
States4 Arizonan Countyb Maranab
2000 282,194,308 5,130,632 814,468 13,556
2007 301,621,157 6,500,194 968,423 32,274
2008 304,059,724 6,629,455 973,462 33,744
Appendix C. Emission Factors for Electricity Use
2007 2008
Lbs. COze per MWh
Tucson Electric Power' 1908.4 1887.5
Trico Electric Cooperative8 2024.8 2003.6
4 U.S. Census Bureau. 2009.
http:Ilwww,census,c~ovlpo{aest/stateslta bles/NST-irST2008-01.x1s
s Arizona Department of Commerce. 2009.
htt :f verww.azcommerce.comldoclib/econinfo FILES estimates1980 2008.x1s
e Based on Arizona Department of Commerce data for Pima County and applied an allocation factor (0.96) to
represent Eastern Pima County
' Based on emission and generation data representative of the fuel type/plant type combinations used by
TEP to generate electricity; data supplied by TEP staff.
$ Based on emissions and generation data representative of the fuel type/plant type combinations used by Trico to
generate electricity; data supplied by Trico staff.
Study Session -October 12, 2010 -Page 40 of 49 21
Appendix D. Marana Community Data Inputs
2007 2008
Residential Energy Use
Natural Gas (therms) 1,648,396 1,723,476
Electricity (GWh)
TEP 132 130
Trico 10 11
Commercial Energy Use
Natural Gas (therms) 4,304,996 4,948,271
Electricity (GWh)
TEP 80 107
Trico 4.2 4.7
Industrial Energy Use
Natural Gas (therms) 13,542 13,542
Electricity (GWh)
TEP 61 59
Trico 0.7 0.8
Transportation (miles per year)
Private and commercial vehicle travel 832,770,456 914,923,611
Rural Transit 70,327 63,251
Waste Disposal (short tons per year)9 28,745 25,228
Other (gallons per year)
Propane 497,750 499,559
Jet A 23,700 23,363
Aviation Gasoline 14,560 14,116
Shaded areas represent estimated values
9 2007 and 2008 waste totals were based on Pima County waste per capita data and 2007 and 2008 Marana
populations
Study Session -October 12, 2010 -Page 41 of 49 22
Appendix E. Waste and Recyclables Characterizations
Waste Categories
Construction and
demolition 10
Paper products
Food wastes
Plant debris
Wood/textiles
All other wastes
Government 1z
Paper products
Food wastes
Plant debris
Wood/textiles
All other wastes
Residential 13
Paper products
Food wastes
Plant debris
Wood/textiles
All other wastes
Commercial 14
Paper products
Food wastes
Plant debris
Wood/textiles
All other wastes
Private self-haulers 15
Paper products
Food wastes
Plant debris
Wood/textiles
All other wastes
Percent
Composition
City of Tucson Recyclables"
Percent
Composition
3 Glass 14
0 Aluminum cans 1
1 Cardboard 15
20 HDPE 2
76 Newspaper 33
Mixed paper 8
Pet 3
15 Tin cans 3
4 Unrecyclable 21
37
6
38 Average waste composition from
Pima County landfills
2007 2008
Paper products 10 10
18 Food wastes 9 8
17 Plant debris 25 29
28 Wood/textiles 8 8
3 All other wastes 47 44
34
28
26
2
11
33
7
1
5
22
65
10 Based on Detailed Characterization of Construction and Demolition Waste. Cascadia Consulting Group. 2006.
" Represents City of Tucson recyclables stream; based on personal communication (Gibson, D, City of Tucson. 2009).
'~ Based on A Characterization of the Solid wastes of the Tucson Governmental Agencies. Hughes, W. et a1,1993.
13 Based on Characterization of Waste from Single-family Residences for the City of Phoenix Public Works Dept. Cascadia
Consulting Group. 2003.
"Based on Waste Disposal and Diversion Findings for Selected Industry Groups. Cascadia Consulting Group. 2006.
15 Based on a Statewide Waste Characterization Study- Contractors'Report to the California Board. Cascadia Consulting
Group. 2004.
Study Session -October 12, 2010 -Page 42 of 49 23
Appendix F. WARM model per metric ton estimates of GHG Emissions for Alternate
Management Scenarios (EPA, 2009)
aterial GHG
Emissions per
Ton of
Material
Source
Reduced
(MTCOzE)
GHG
Emissions per
Ton of
Material
Recycled
(MTCOzE)
GHG Emissions
per Ton of
Material
Landfilled
(MTCOZE)
GHG
Emissions
per Ton of
Material
Combusted
(MTCOzE)
GHG
Emissions
per Ton of
Material
Composted
(MTCOzE)
Aluminum Cans -8.29 -13.67 0.04 0.06 NA
Steel Cans -3.19 -1.80 0.04 -1.54 NA
Copper Wire -7.41 -4.97 0.04 0.06 NA
Glass -0.58 -0.28 0.04 0.05 NA
HDPE -1.80 -1.40 0.04 0.91 NA
LDPE -2.29 -1.71 0.04 0.91 NA
PET -2.11 -1.55 0.04 1.07 NA
Corrugated Cardboard -5.59 -3.11 0.33 -0.66 NA
Magazines/third-class mail -8.66 -3.07 -0.33 -0.48 NA
Newspaper -4.89 -2.80 -0.89 -0.75 NA
Office Paper -8.01 -2.85 1.76 -0.63 NA
Phonebooks -6.34 -2.66 -0.89 -0.75 NA
Textbooks -9.18 -3.11 1.76 -0.63 NA
Dimensional Lumber -2.02 -2.46 -0.52 -0.79 NA
Medium Density Fiberboard -2.22 -2.47 -0.52 -0.79 NA
Food Scraps. NA NA 0.68 -0.18 -0.20
Yard Trimmings NA NA -0.34 -0.22 -0.20
Grass NA NA 0.15 -0.22 -0.20
Leaves NA NA -0.58 -0.22 -0.20
Branches NA NA -0.52 -0.22 -0.20
Mixed Paper, Broad NA -3.54 0.27 -0.66 NA
Mixed Paper, Resid. NA -3.54 0.19 -0.66 NA
Mixed Paper, Office NA -3.42 0.38 -0.60 NA
Mixed Metals NA -5.26 0.04 -1.07 NA
Mixed Plastics NA -1.52 0.04 0.97 NA
Mixed Recyclables NA -2.88 0.08 -0.60 NA
Mixed Organics NA NA 0.15 -0.20 -0.20
Mixed MSW NA NA 0.37 -0.13 NA
Carpet -4.03 -7.23 0.04 0.37 NA
Personal Computers -55.97 -2.27 0.04 -0.20 NA
Clay Bricks -0.29 NA 0.04 NA NA
Concrete NA -0.01 0.04 NA NA
Fly Ash NA -0.87 0.04 NA NA
Tires -4.01 -1.84 0.04 0.09 NA
Study Session -October 12, 2010 -Page 43 of 49 24
Appendix G: Marana Government Data Inputs
200 8
Facilit Energ Use Electricity-
KWh; natural
gas -therms
Dollars
Natural Gas 8,293 15,523
Electricity
TEP 4,758,768 465,618
Trico 288,716 31,700
Water Ener Use
Natural Gas 0
Electricity
TEP 255,231 26,808
Trico 292,892 31,193
Vehicle Fleet Miles/year
Gasoline 1,756,444 n.a.
Diesel 143,556 n.a.
Emplo ee Commute 76 Miles/year
Gasoline 2,072,819
Public Lighting Electricity -
KWh
Electricity
TEP 420,969 46,495
Trico 24,884 3,735
Government Solid Waste Short
tons/year
113 n.a.
n.a. -Data not available
0 - No use
16 Employee commuting data from PAG's 2007 employer survey
Study Session -October 12, 2010 -Page 44 of 49
25
~,'~,
~~~~
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~t!NM~>~RAfi.~
11555 W. CIVIC CENTER DRIVE, MARANA, ARIZONA 85653
COUNCIL CHAMBERS, October 12, 2010, 6:00:00 PM
To: Mayor and Council Item D 3
From: Laine Sklar ,Assistant Town Attorney
Strategic Plan Focus Area:
Not Applicable
Subject: Discussion regarding HB2246 and the Town Council's ability to regulate the use of
consumer fireworks within the Town limits as of November 30, 2010
Discussion:
House Bi112246 becomes effective on November 30, 2010. The bill authorizes the statewide sale
of certain types of fireworks, defined as "consumer fireworks," to people over the age of 15.
While the Town cannot limit the sale of fireworks within the Town limits, it can limit the use of
fireworks within the Town limits.
The Town can choose to provide no limits on the use of consumer fireworks, or can limit the
location or time of their use up to and including an outright prohibition on the use of consumer
fireworks within the Town limits. For example, the Town could prohibit the use of consumer
fireworks completely, or prohibit their use except on July 4th and December 31st, or the Town
could permit the use of consumer fireworks year-round between the hours of 5:00 p.m. and 10:00
p.m. The amount of regulation is entirely in the Council's discretion.
Should the Council choose to limit the use of consumer fireworks within the Town limits, the
Council would need to designate a violation as either a civil or criminal offense and establish any
minimum, maximum, or mandatory penalties the Council feels are appropriate.
If the Council chooses to take no action, then as of December 1, 2010, there will be no
restrictions on the use of permissible consumer fireworks within the Town limits.
Staff requests feedback from the Council concerning whether the Council would like to limit the
use of consumer fireworks in any manner. Should the Council wish to limit the use of consumer
fireworks, Staff requests the Council direct staff to proceed in drafting an ordinance pursuant to
the Council's decision.
ATTACHMENTS:
Name: Description: Type:
No Attachments Available
Staff Recommendation:
Study Session -October 12, 2010 -Page 45 of 49
None. Seeking Council input and direction.
Suggested Motion:
Council's pleasure.
Study Session -October 12, 2010 -Page 46 of 49
~.~~.
~~~N
,<.p.,, $s~~~.
11555 W. CIVIC CENTER DRIVE, MARANA, ARIZONA 85653
COUNCIL CHAMBERS, October 12, 2010, 6:00:00 PM
To: Mayor and Council Item D 4
From: Ryan Benavides ,Assistant Public Works Director
Strategic Plan Focus Area:
Commerce, Community Building, Progress and Innovation, Recreation
Strategic Plan Focus Area -Additional Information:
Commerce Center: Build upon the unique combination of assets to attract and maintain career-
oriented commerce.
Community Building: Create a safe community with a strong sense of place where diverse people
are motivated to be involved and feel connected, needed and appreciated; Create a sense of
community identity and "community place"
Progress and Innovation: Encourage excellence and innovation within the community and the same
from projects being proposed by developers and those looking to invest in Marana
Recreation Capital of Arizona: Identify, undertake and/or complete planning processes for parks,
open-space, and recreation facilities; Ensure that future developments, land-use and projects protect
and showcase the Sonoran Desert and all its inhabitants
Subject: Presentation.__ Relating to Capital Improvement Projects; update on the Twin Peaks
Interchange and Twin Peaks Road/Camino de Marana Ribbon Cutting/Celebration
Discussion:
Tom Ellis and Ryan Benavides will present Council with details on the upcoming celebration events
scheduled for the completion of the Twin Peaks Interchange and Twin Peaks Road/Camino de
Marana Projects to take place on November 13th & 18th.
ATTACHMENTS:
Name: Description: Type:
No Attachments Available
Staff Recommendation:
For informational purposes.
Suggested Motion:
For informational purposes.
Study Session -October 12, 2010 -Page 47 of 49
''""'~~
IY1~~~~
~~~~
r~~~ ~,x~ ~»~,
11555 W. CIVIC CENTER DRIVE, MARANA, ARIZONA 85653
COUNCIL CHAMBERS, October 12, 2010, 6:00:00 PM
To: Mayor and Council Item D 5
From: Deb Thalasitis ,Assistant Town Manager
Strategic Plan Focus Area:
Progress and Innovation
Strategic Plan Focus Area -Additional Information:
Action Strategy: Leverage the use of technology in communicating with residents and
employees.
Subject: Presentation: Relating to Technology Services; providing a presentation and update
on the redesign of the Town of Marana Internet Website
Discussion:
A presentation of the design concept and a mock up of the proposed layout will be presented by
town staff and representatives from Westward Vision, a consulting group hired to help with the
Website's graphics and branding.
The design and operation of the town's website will be brought in house to provide more
functionality and flexibility while increasing integration with existing enterprise databases. The
new website will provide an opportunity to add needed functions to provide better information
to community and visitors as well as to leverage the Website as a marketing tool for the Town.
Expanded capabilities will allow staff to update content and imagery on a regular basis and
integrate new functional features as they become relevant to town operations. New functions
may include the use of social media, on-line services, video streaming, and the dynamic
promotion of special events.
Financial Impact:
N/A
ATTACHMENTS:
Name: Description: Type:
No Attachments Available
Staff Recommendation:
Staff recommends approval of the design concept and proposed layout as presented and direction
to move forward with the development of the Town's new Marana.com website.
Study Session -October 12, 2010 -Page 48 of 49
Commission Recommendation - if applicable:
N/A
Suggested Motion:
I move to direct staff to continue development of the proposed Website design presented this
evening.
Study Session -October 12, 2010 -Page 49 of 49