CalPortland Company Rillito Plant
Rillito, AZ · PIMA COUNTY · NAICS 327310
Data updated May 2026
CalPortland Company Rillito Plant sits in the upper third of EPA GHGRP reporters by latest CO₂e (#771 of 8,713 nationally, #16 of 102 in AZ).
- National rank #771 of 8,713 GHGRP facilities
- #16 of 102 in AZ
- #43 of 434 in Minerals
- 22.1% of TAIHEIYO CEMENT USA parent CO₂e
- 2023 mix: 0.3% non-CO₂ (N₂O-led)
- +42.8% since 2011
CalPortland Company Rillito Plant vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
789,422 771st of 8713 higher than 7,942 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 22.1% of TAIHEIYO CEMENT USA reported parent CO₂e (789K MT of 3.6M MT ; #3 of 4 GHGRP facilities under that parent ). Inside the EPA Minerals sector it ranks #43 of 434 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 789K MT CO₂e reported for 2023, non-CO₂ gases are 0.3% , led by N₂O at 0.2% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 99.7%
- 787K MT
- CH₄
- 0.1%
- 800 MT
- N₂O
- 0.2%
- 1K MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 789,422 |
| 2022 | 807,226 |
| 2021 | 849,023 |
| 2020 | 798,138 |
| 2019 | 893,556 |
| 2018 | 954,086 |
| 2017 | 801,277 |
| 2016 | 552,813 |
| 2015 | 769,167 |
| 2014 | 832,823 |
| 2013 | 556,023 |
| 2012 | 628,319 |
| 2011 | 552,668 |
Facility insight: CalPortland Company Rillito Plant
CalPortland Company Rillito Plant (GHGRP ID 1006669) is a high-volume reporter at 789K MT CO₂e in 2023 from Rillito, AZ (#771 of 8,713 nationally) under Minerals (NAICS 327310).
From 2011 to 2023, reported CO₂e rose 42.8% (peak 954K MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Peak year was 2018 at 954K MT CO2e; latest 2023 sits 17.3% below that peak (789K MT). The largest year-to-year move was 2013→2014 (+49.8%, 277K MT).
Frequently Asked Questions
Where does CalPortland Company Rillito Plant rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, CalPortland Company Rillito Plant ranks #771 of 8,713 reporting facilities by latest reported CO₂e, and #16 of 102 facilities in AZ (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than CalPortland Company Rillito Plant? ▼
CalPortland Company Rillito Plant's 789K MT CO₂e is higher than 7,942 of the 8,713 GHGRP facilities with reported emissions (91%), an exact count from the full corpus, not an estimate.
How much CO2 does CalPortland Company Rillito Plant emit? ▼
CalPortland Company Rillito Plant reported 789K MT CO2e in 2023.
What share of TAIHEIYO CEMENT USA does CalPortland Company Rillito Plant represent? ▼
CalPortland Company Rillito Plant accounts for 22.1% of TAIHEIYO CEMENT USA's reported GHGRP CO₂e (789K MT of 3.6M MT), ranking #3 of 4 facilities under that parent.
What is CalPortland Company Rillito Plant's 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 0.3% of reported CO₂e at CalPortland Company Rillito Plant, with N₂O the larger non-CO₂ share at 0.2% (CO₂ 99.7%). Shares use the facility's GHGRP gas components for that year.
Where does CalPortland Company Rillito Plant rank inside Minerals? ▼
Among EPA GHGRP facilities tagged Minerals, CalPortland Company Rillito Plant ranks #43 of 434 by latest reported CO₂e.
Is CalPortland Company Rillito Plant reducing emissions? ▼
Over 13 reporting years (2011–2023), CalPortland Company Rillito Plant's emissions have increased by 42.8%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside AZ for a top-third GHGRP emitter: CO₂e totals first, then Minerals neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside AZ (789K MT here).
Similar Minerals CO₂e
Nearest same-sector facility totals outside AZ.