US Navy Psns & Imf - Bremerton Site & Naval Base Kitsap – Emissions Trend

Bremerton, WA · 2019–2023

This page assembles 5 consecutive years of EPA Toxics Release Inventory Form R filings for US Navy Psns & Imf - Bremerton Site & Naval Base Kitsap, spanning 2019–2023. Each annual total aggregates on-site air emissions, surface-water discharges, land disposal, and off-site transfers reported by the facility under EPCRA Section 313, which requires disclosure whenever a listed chemical is manufactured, processed, or otherwise used above threshold quantities.

Reported releases opened at 2.6M in 2019 and closed at 1.0M in 2023 – a decrease of 61.2% over the window. The chart below stacks the four TRI release media (air, water, land, off-site) and overlays the yearly total. The top contributor by cumulative mass is Copper at 2.4M, followed by Zinc compounds at 1.5M.

Because TRI figures are estimated, not metered, year-over-year deltas can reflect methodology revisions, ownership changes, or shifts in what a facility classifies as reportable, not only physical emission changes. Treat the trajectory as a disclosure record, and cross-reference with the EPA Enforcement and Compliance History Online (ECHO) system for the fuller regulatory picture on this other facility.

Overall Trend
↓ Decreasing (-61.2%)
2019 Total
2.6M lbs
2023 Total
1.0M lbs

Total Releases by Category

Air
Water
Land
Offsite Transfer
0521.4K1.0M1.6M2.1M2.6M 20192020202120222023 Pounds Released

Year-over-Year Comparison

Year Total Chemicals YoY Change
2019 2.6M lbs 10 -
2020 1.9M lbs 8 -25.9%
2021 1.8M lbs 9 -7.0%
2022 1.5M lbs 10 -18.7%
2023 1.0M lbs 10 -30.7%

Top Chemicals by Year

Chemical 20192020202120222023 Total
Copper 551.2K 866.8K 425.6K 372.8K 172.1K 2.4M
Zinc compounds - - 650.5K 390.0K 421.4K 1.5M
Copper compounds 378.8K 177.7K 214.1K 319.0K 198.7K 1.3M
Nickel 415.4K 190.0K 190.8K 106.9K 47.7K 950.7K
Lead 478.9K 200.4K 86.1K 31.8K 30.3K 827.6K
Chromium 195.4K 109.4K 92.9K 85.5K 34.7K 518.0K
Xylene (mixed isomers) 228.1K 154.5K 45.1K 27.9K 12.3K 468.0K
n-Butyl alcohol 149.3K 97.3K 30.5K 34.6K 18.4K 330.1K
Manganese 43.2K 136.8K 61.2K 22.9K 15.1K 279.2K
1,2,4-Trimethylbenzene 90.3K - - 70.0K 61.5K 221.8K
Ethylbenzene 76.5K - - - - 76.5K

About This Data

Trend data is sourced from the EPA Toxic Release Inventory (TRI). Facilities report annually. Release quantities are self-reported estimates. Year-over-year changes may reflect changes in production, pollution control measures, reporting methodology, or chemical thresholds.

A decrease in reported releases does not necessarily indicate improved environmental performance, as it may reflect production cutbacks, facility closures, or changes in reporting requirements. Similarly, increases may reflect expanded production rather than degraded environmental practices.

Frequently Asked Questions

Is US Navy Psns & Imf - Bremerton Site & Naval Base Kitsap getting cleaner or dirtier?
Based on EPA TRI data from 2019–2023, US Navy Psns & Imf - Bremerton Site & Naval Base Kitsap's total toxic releases have decreased by approximately 61%.
What time period does this trend data cover?
This page shows 5 years of EPA Toxic Release Inventory data from 2019–2023. Release quantities are self-reported estimates filed annually by the facility.