v>EPA

The Waste Management
Hierarchy

P2 in TRI Data

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SEPA

Source Reduction and Other Environmentally-Friendly Practices

Under the PPA, facilities implementing source reduction activities report the activity implemented
and the method by which this P2 opportunity was identified using designated codes (see first
column below). Many facilities also choose to describe these activities or other measures taken
to reduce toxic chemical releases, using a free-text data entry field on the TRI reporting form:

Source Reduction Activity

Pollution Prevention Free-Text Entry (Section 8.11)

W42: Substituted raw materials

We have reduced our air emissions by substituting #6 fuel oil
with B50; a product that is 50% vegetable oil.

W60: Changed to mechanical
stripping / cleaning devices
(from solvents or other
materials)

Grit blasting has been used in place of some of our acid
stripping operations. Our customer satisfaction with this
process will determine if it will be used as a permanent
change. Otherwise our acid use will increase with expected
increase in production requirements.

W21: Instituted procedures to
ensure that materials do not stay
in inventory beyond shelf-life

We found customers for paint at the end of its shelf life that
did not require high performance standards of paint within its
shelf life. This reduced the amount in the waste stream.

Production Ratio or Activity Index

Under the PPA, TRI facilities report a production ratio or activity
index that typically compares production in the current year to
the prior year. For a chemical used in the generation of
electricity, for example, the production ratio for that chemical
would reflect the year-to-year change in the number of kilowatt
hours produced.

Using this ratio, year-to-year changes in waste management
quantities can be viewed within the context of production. This
can help data users gauge whether reductions in waste
generation were the result of reported source reduction activities.

Accessing and Using TRI's P2 Data

EPA's new P2 search tool can be used to identify P2 practices
associated with particular industries, chemicals, or businesses
and to see which facilities reported the largest reductions in toxic
chemical releases. This tool also provides access to graphical
representations of the P2 data reported annually by each facility.

On-the-go access to these data is offered through mvrtk, while
more complex queries can be performed using TRI.net. For more
on these tools and for updates, visit http://www.epa.aov/tri/p2/.

Barriers to Implementing P2

In 2012, EPA began
encouraging facilities that did
not implement source
reduction activities to use the
optional P2 text-entry field to
indicate what barriers may be
preventing them from doing
so. These may include:

¦	Need for additional
technical information;

¦	Concerns about
product quality; or

¦	Prohibitive cost.

This information will provide
a more complete picture of
P2 activities at facilities and
may facilitate exchanges
between those seeking and
those offering technical
assistance.

A

TOXICS RELEASE INVENTORY (TRI) PROGRAM

www.epa.gov/tri

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