Great Lakes Castings LLC
Ludington, MI · MASON COUNTY · NAICS 331511
Data updated May 2026
Great Lakes Castings LLC ranks among smaller GHGRP totals (#6,413 of 8,713 nationally; #188 of 260 in MI), a lower-footprint comparator in Metals.
- National rank #6,413 of 8,713 GHGRP facilities
- #188 of 260 in MI
- #284 of 363 in Metals
- 100% of RESERVE GROUP MANAGEMENT parent CO₂e
- 2023 mix: 0.5% non-CO₂ (N₂O-led)
- -17.5% since 2011
Great Lakes Castings LLC vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
23,337 6413th of 8713 higher than 2,300 of 8,713 facilities
GHGRP facilities, banded by latest reported CO₂e (MT)
Each bar is a band; taller bars hold more facilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA Greenhouse Gas Reporting Program · 2023
Facility footprint context
This site accounts for 100% of RESERVE GROUP MANAGEMENT reported parent CO₂e (23K MT of 23K MT ). Inside the EPA Metals sector it ranks #284 of 363 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 23K MT CO₂e reported for 2023, non-CO₂ gases are 0.5% , led by N₂O at 0.3% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.5%
- 23K MT
- CH₄
- 0.2%
- 46 MT
- N₂O
- 0.3%
- 77 MT
Emissions decline across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 23,337 |
| 2022 | 16,064 |
| 2021 | 19,468 |
| 2020 | 22,113 |
| 2019 | 25,636 |
| 2018 | 25,521 |
| 2017 | 26,526 |
| 2016 | 24,850 |
| 2015 | 24,603 |
| 2014 | 26,756 |
| 2013 | 26,582 |
| 2012 | 26,391 |
| 2011 | 28,278 |
Facility insight: Great Lakes Castings LLC
Great Lakes Castings LLC (ID 1010034) reported 23K MT CO₂e for 2023 in MASON COUNTY, MI (#6,413 of 8,713 by latest CO₂e).
Across 2011–2023, annual CO₂e fell 17.5%; peak load was 28K MT in 2011. This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2011 at 28K MT CO2e; latest 2023 sits 17.5% below that peak (23K MT). The largest year-to-year move was 2022→2023 (+45.3%, 7K MT).
Frequently Asked Questions
Where does Great Lakes Castings LLC rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Great Lakes Castings LLC ranks #6,413 of 8,713 reporting facilities by latest reported CO₂e, and #188 of 260 facilities in MI (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Great Lakes Castings LLC? ▼
Great Lakes Castings LLC's 23K MT CO₂e is higher than 2,300 of the 8,713 GHGRP facilities with reported emissions (26%), an exact count from the full corpus, not an estimate.
How much CO2 does Great Lakes Castings LLC emit? ▼
Great Lakes Castings LLC reported 23K MT CO2e in 2023.
What share of RESERVE GROUP MANAGEMENT does Great Lakes Castings LLC represent? ▼
Great Lakes Castings LLC accounts for 100% of RESERVE GROUP MANAGEMENT's reported GHGRP CO₂e (23K MT of 23K MT).
What is Great Lakes Castings LLC's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.5% of reported CO₂e at Great Lakes Castings LLC, with N₂O the larger non-CO₂ share at 0.3% (CO₂ 99.5%). Shares use the facility's GHGRP gas components for that year.
Where does Great Lakes Castings LLC rank inside Metals? ▼
Among EPA GHGRP facilities tagged Metals, Great Lakes Castings LLC ranks #284 of 363 by latest reported CO₂e.
Is Great Lakes Castings LLC reducing emissions? ▼
Over 13 reporting years (2011–2023), Great Lakes Castings LLC's emissions have decreased by 17.5%. This suggests meaningful progress in emissions reduction.
Nationwide facilities with similar CO₂e or sector
Lower-footprint peers outside MI: nearest CO₂e totals and same-sector reporters for context.
Similar reported CO₂e
Nearest latest-year facility totals outside MI (23K MT here).
Similar Metals CO₂e
Nearest same-sector facility totals outside MI.