Lewis & Clark County Landfill
Helena, MT · LEWIS AND CLARK COUNTY · NAICS 562212
Data updated May 2026
According to the EPA Greenhouse Gas Reporting Program, Lewis & Clark County Landfill ranks #5,221 of 8,713 U.S. reporting facilities by latest reported CO₂e and #22 of 43 facilities in MT.
- National rank #5,221 of 8,713 GHGRP facilities
- #22 of 43 in MT
- #813 of 1,433 in Waste
- 100% of COUNTY OF LEWIS & CLARK MONTANA parent CO₂e
- 2023 mix: 100% non-CO₂ (CH₄-led)
- +124.5% since 2011
Lewis & Clark County Landfill vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
34,916 5221st of 8713 higher than 3,492 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 COUNTY OF LEWIS & CLARK MONTANA reported parent CO₂e (35K MT of 35K MT ). Inside the EPA Waste sector it ranks #813 of 1,433 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 35K MT CO₂e reported for 2023, non-CO₂ gases are 100% , led by CH₄ at 100% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- -
- n/r
- CH₄
- 100%
- 35K MT
- N₂O
- -
- n/r
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 34,916 |
| 2022 | 33,857 |
| 2021 | 32,419 |
| 2020 | 31,113 |
| 2019 | 29,810 |
| 2018 | 21,481 |
| 2012 | 16,323 |
| 2011 | 15,554 |
Facility insight: Lewis & Clark County Landfill
Lewis & Clark County Landfill (EPA GHGRP Facility ID 1004538) reported 35K metric tons of CO2-equivalent in 2023, operating in Helena, MT within LEWIS AND CLARK COUNTY. Among GHGRP reporters it ranks #5,221 of 8,713 nationally by latest CO₂e and #22 of 43 in MT. The site is classified under Waste with NAICS code 562212.
From 2011 to 2023, reported CO₂e rose 124.5% (peak 35K MT). GHGRP filings are on record for 8 of those 13 years, 5 years missing from the reporting history.
Frequently Asked Questions
Where does Lewis & Clark County Landfill rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, Lewis & Clark County Landfill ranks #5,221 of 8,713 reporting facilities by latest reported CO₂e, and #22 of 43 facilities in MT (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than Lewis & Clark County Landfill? ▼
Lewis & Clark County Landfill's 35K MT CO₂e is higher than 3,492 of the 8,713 GHGRP facilities with reported emissions (40%), an exact count from the full corpus, not an estimate.
How much CO2 does Lewis & Clark County Landfill emit? ▼
Lewis & Clark County Landfill reported 35K MT CO2e in 2023.
What share of COUNTY OF LEWIS & CLARK MONTANA does Lewis & Clark County Landfill represent? ▼
Lewis & Clark County Landfill accounts for 100% of COUNTY OF LEWIS & CLARK MONTANA's reported GHGRP CO₂e (35K MT of 35K MT).
What is Lewis & Clark County Landfill's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 100% of reported CO₂e at Lewis & Clark County Landfill, with CH₄ the larger non-CO₂ share at 100%. Shares use the facility's GHGRP gas components for that year.
Where does Lewis & Clark County Landfill rank inside Waste? ▼
Among EPA GHGRP facilities tagged Waste, Lewis & Clark County Landfill ranks #813 of 1,433 by latest reported CO₂e.
Is Lewis & Clark County Landfill reducing emissions? ▼
Over 8 reporting years (2011–2023), Lewis & Clark County Landfill's emissions have increased by 124.5%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Two GHGRP-derived peer sets for Lewis & Clark County Landfill, both outside MT so the neighborhoods are not state-geo containment.
Similar reported CO₂e
Nearest latest-year facility totals outside MT (35K MT here).
Similar Waste CO₂e
Nearest same-sector facility totals outside MT.