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2015 Washington Toxics Release Inventory (TRI)

The Toxics Release Inventory (TRI) identifies facilities that release certain chemicals into air, water, or land. These facilities are required to report the amounts of chemicals they release on site or send for disposal off site each year. 2015 is the most recent reporting year for which we have data.

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What is a Release?

Releases in TRI are classified as either "on-site" or "off-site." An on-site release is the amount of a toxic chemical a facility emits or disposes to air, water, or land. An off-site release is the amount transferred off site for disposal; it also includes metals released into wastewater that goes to a Publicly Owned Treatment Works (POTW).

In 2015, 327 facilities submitted 1,087 chemical reports. From these data, we found:

  • 114 different chemicals or chemical groups were reported.
  • 21.9 million pounds were released on site.
  • 4.4 million pounds were transferred off site for disposal.

Total releases were more than 26 million pounds. Most of these releases (40%) were to land.


Compared to 2014, total releases have increased by nearly five million pounds (22.2 percent). While releases to air have gone down, water releases are relatively unchanged, and land releases have increased by 74.5 percent.

TRI Releases in Washington, 2014 compared to 2015 (in pounds)

Type of Release

2014

2015

Percent Change

Change in Pounds

On Site Release
17,783,539
21,891,077
23.1% ↑
4,107,538 ↑
Air
9,506,745
9,076,248
4.5% ↓
430,497 ↓
Land
6,063,017
10,578,661
74.5% ↑
4,515,644 ↑
Water
2,213,777
2,236,168
1.0% ↑
22,391 ↑
POTW* Disposal
713
376
47.3% ↓
337 ↓
Off-site Disposal
3,769,663
4,443,709
17.9% ↑
674,046 ↑
Total
21,553,914
26,335,162
22.2% ↑
4,781,248 ↑
*Publicly Owned Treatment Works, metals only.

TRI releases have decreased in Washington since 2003. The number of facilities reporting to TRI decreased until 2012. Since 2012, an additional 17 businesses report to TRI.


TRI Releases by Industry Type, 2015 (in pounds)

2012 NAICS* Category # of Facilities # of Chemicals Released On Site POTW** Disposal Disposed Off Site Total Released (On Site + POTW** Off Site)
Mining 3 13 557,900 0 2 557,902
Utilities 1 15 213,401 0 36 213,437
Manufacturing 288 878 11,300,578 350 2,220,481 13,521,410
Wholesale Trade 18 109 142,015 0 811,386 953,401
Warehousing & Storage 1 1 2,380 0 0 2,380
Waste Management & Remediation Services 6 38 20,170 0 318,671 338,841
Public Administration 10 33 9,654,633 25 1,093,133 10,747,792
Grand Total 327 1,087 21,891,077 376 4,443,709 26,335,162
*North American Industry Classification System
**Publicly Owned Treatment Works, metals only