Nonroad Mobile Workgroup

Contents [hide]

1. Members
2. Work Group Meetings
- 2.1 March 22, 2018
- 2.2 February 8, 2018

Inventory Collaborative Google Drive Link

Members

Co-leads: Sarah Roberts (EPA OTAQ), Joseph Jakuta (Ozone Transport Commission),

Alexandra Catena (District of Columbia), Alison Eyth (EPA OAQPS), Andy Bollman (North Carolina), Brian Sullins (Alabama), Brian Timin (EPA OAQPS), Brian Trowbridge (Pennsylvania), Chris Bovee (Wisconsin), Chris Kite (Texas), Chris Rochester (New York), Collin Smythe (Vermont), Dale Wells (Colorado), Gil Grodzinsky (Georgia), James Smith (Tennessee), Jim Koronaides (New Jersey), Ken Santlal (Massachusetts), Marc Bennett (Massachusetts), Mark Janssen (LADCO), Mike Maleski (Ohio), Peter Verschoor (Utah), Rebecca Simpson (Colorado), Sonya Lewis-Cheatham (Virginia), Susanne Cotty (Pima County, AZ), Sylvia Vanderspek (California), Tim Wallace (Maryland), Vanessa Crandell-Beck (Alaska)

Work Group Meetings

March 22, 2018

Attendees

Co-leads: Sarah Roberts (EPA OTAQ), Joseph Jakuta (Ozone Transport Commission)

Agenda

EPA Update: MOVES2014b
2016 alpha inventory
Presentations

Mark Janssen, Lake Michigan Air Directors Consortium: LADCO Experience wth Nonroad Improvements
Chris Kite, Texas Commission on Environmental Quality:
Andy Bollman, North Carolina Department of Environmental Quality: Nonroad Emissions Projection Methods for Agriculture and Construction Diesel Nonroad Mobile Emissions Categories
Gil Grodzinsky, Georgia Department of Natural Resources: Importance of Updated Sector Growth Rates on NONROAD Emissions

Minutes/Notes

Meeting slides

Action Items

All: review draft workgroup charge; provide comments to Sarah and Joseph by April 1st, 2018
All: if you're planning to submit data for inclusion in the beta inventory run, please contact Sarah, Joseph, and Alison Eyth to indicate what inputs you intend to provide
All: if you would like to share work that’s been done to improve emissions estimates from the Lawn & Garden and Recreational Marine sectors, please send a note to Sarah and Joseph by COB Monday, April 23rd.

February 8, 2018

Attendees

Co-leads: Sarah Roberts (EPA OTAQ), Joseph Jakuta (Ozone Transport Commission)

Alexandra Catena (District of Columbia), Alison Eyth (EPA OAQPS), Brian Sullins (Alabama), Brian Timin (EPA OAQPS), Brian Trowbridge (Pennsylvania), Chris Bovee (Wisconsin), Chris Kite (Texas), Chris Rochester (New York), Dale Wells (Colorado), Gil Grodzinsky (Georgia), James Smith (Tennessee), Ken Santlal (Massachusetts), Kusandra King (North Carolina), Marc Bennett (Massachusetts), Mark Janssen (LADCO), Mike Maleski (Ohio), Rebecca Simpson (Colorado), Sonya Lewis-Cheatham (Virginia), Stephanie Huber (California), Susanne Cotty (Pima County, AZ), Vanessa Crandell-Beck (Alaska)

Agenda

Welcome and Introductions
Overview of Inventory Collaborative

Organizational Structure
Platform Schedule
Resources

Nonroad Work Group Tasks
Planned Updates to NONROAD Model
Next Steps

Minutes/Notes

Meeting slides

EPA heard from states that they wanted to be more involved in providing inputs in development of inventories, as well as the methods used, in particular when projecting growth. Inventory will be in 3 phases. Alpha will be based on 2014 NEI v2, which has been posted on the ftp site. The nonroad files are rather large and might need to be resized. Beta will include projections to 2023 and 2028 and improvements to 2014. 2016v1 will be completed by winter 2019.

NONROAD standalone model was release about 20 years ago and besides folding it into the MOVES GUI and updating a few emissions rates there have been no improvements. EPA is planning on updating the growth rates that are growing populations or activity from 1996, 1998, or 2000 depending on class in the next update to MOVES. It currently uses a national growth rate, which is based on a linear extrapolation. Planning on using a variety of mostly public data sets including projection surrogates such as US Census population as well as historic data such as fuel and kerosene sales and boat registrations. This new data saw an overall decrease in engine populations in most sectors and reductions in emissions as well. For this effort EPA is considering whether they will provide an updated NONROAD input database or develop adjustment factors to apply after MOVES2014a NONROAD runs are complete.

Gil Grodzinsky conducted a similar test of improving growth rates for some sectors and found similar results for the sectors they analyzed.

It should be noted that aircraft ground support equipment and oil and gas equipment from NONROAD is not used and will not fall under the purview of this group.

Mark Janssen brought up the issue of whether some of this work could be taken outside of the NONROAD model and would like to block off time to hear from others on what they have done in individual states.

In subsequent calls we would like to plan on having members of the workgroup present some of their findings and methodology. Sarah Roberts proposed looking at sectors in order of emissions importance. We will start with agriculture and construction next month.

Datasets should be sent to Sarah Roberts (Roberts.Sarah at epa.gov) and Alison Eyth (Eyth.Alison at epa.gov) at EPA as well as Joseph Jakuta at OTC (jjakuta at otcair.org)