Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HAWAIIAN ROCK PRODUCTS-GUAM
1402 RT 15, MANGILAO, GU, 96913
Parent company: MCC DEVELOPMENT CORP
Carcinogen
PBT
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Lead compounds | Lead And Lead Compounds | Polycyclic aromatic compounds | Benzo[g,h,i]perylene | Total (lbs) | |
| 2024 | 38 | — | 3 | 0 | 40 | |
| 2023 | — | 34 | 3 | 0 | 37 | |
| 2022 | 38 | — | 3 | 0 | 41 | |
| 2021 | — | 41 | 3 | 0 | 44 | |
| 2020 | — | 27 | 2 | 0 | 30 | |
| 2019 | — | 30 | 6 | 0 | 36 | |
| 2018 | — | 14 | 2 | 0 | 16 | |
| 2017 | 15 | — | 2 | 0 | 17 | |
| 2016 | 17 | — | 2 | 0 | 19 | |
| 2015 | 18 | — | 2 | 0 | 20 | |
| 2014 | 23 | — | 3 | 0 | 25 | |
| 2013 | 21 | — | 3 | 0 | 24 | |
| 2012 | 28 | — | 4 | 0 | 32 | |
| 2011 | 32 | — | 4 | 0 | 36 | |
| 2010 | 48 | — | 6 | 0 | 54 | |
| 2009 | 70 | — | 4 | 0 | 74 | |
| 2008 | 36 | — | 3 | 0 | 39 | |
| 2007 | 31 | — | 3 | 0 | 34 | |
| 2006 | 27 | — | 3 | 0 | 31 | |
| 2005 | 26 | — | 4 | 0 | 30 | |
| 2004 | 9 | — | 2 | — | 11 | |
| 2003 | 13 | — | 2 | — | 15 | |
| 2002 | 10 | — | 2 | — | 12 | |
| 2001 | 13 | — | 2 | — | 16 | |
| 2000 | — | — | 3 | — | 3 | |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.