EPA TRI Facility · Nonmetallic Mineral Product
Pomona Plant 5
Pomona, CA · Parent: Mcc Development Corp
- Total releases
- 58 lbs
- Chemicals reported
- 1
- Latest report
- 2023
- Primary pathway
- Air Releases
MIXED Form-R mix
Pomona Plant 5: how the 58 lbs splits
58 lbs across all reported pathways
- Air Releases 30 lbs 52.5%
- Land Disposal 28 lbs 47.5%
Pomona Plant 5's 58 lbs Form-R total is MIXED - air releases is 52.5% of the bar. Next segment: land disposal at 47.5%. Leading chemical by pounds: Lead compounds.
TRACE volume MIXED pathway CLEAN
Pomona Plant 5 is an EPA Toxics Release Inventory reporter in Pomona, CA, in the nonmetallic mineral product sector. It reported 11 lbs of releases across 1 chemical in 2023, and 58 lbs in total across its 2019-2023 reporting years. That ranks 17,064 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In California's 1,149 reporting TRI sites, pounds #1 is not chemical-count #1. Pomona Plant 5 is pounds #861 and chemical-count #1012 at 58 lbs. Clean Harbors Buttonwillow LLC leads reported pounds (50.4M lbs) at 45 chemicals (chemical-count #2). Chevron Products Co Richmond Refinery leads chemical count at 46 chemicals (3.0M lbs, pounds #13). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Consolidated Precision Products Corp; Cci Inc.; Airgas USA LLC; Gb Manufacturing Inc Calif. Acrylic Ind. Inc. (dba Cal Spas). Similar-scale Nonmetallic Mineral Product peers outside California: Gold Bond Building Products - Westwego; Knife River Materials Yard; Certainteed Gypsum; St. Marys Cement U.S. LLC. Other Mcc Development Corp sites in this extract: Hawaiian Rock Products-Guam; Gardena Plant 25; Moreno Valley Plant 2; Rialto Plant 24. Largest disclosed chemicals by pounds: Lead compounds.
Pomona Plant 5 is a TRACE · MIXED-pathway Form-R site in Pomona, CA: 58 lbs across 1 chemical. No single media clears 70% of the bar (lead segment air releases at 52.5%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Gold Bond Building Products - Westwego and Knife River Materials Yard.
Pomona Plant 5 vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
58 lbs 34th percentile higher than 34% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Pomona Plant 5 in the Nonmetallic Mineral Product sector extract
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Pomona Plant 5 reports the 961st-largest volume (58 lbs). Scale peers outside California include Gold Bond Building Products - Westwego and Knife River Materials Yard.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Pomona Plant 5 Form-R facts
Compare this facility
See how Pomona Plant 5 stacks up against nearby facilities and the typical reporter.
98% less than the comparison
67% less than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Pomona Plant 5 releases toxic chemicals into the environment. Total: 58 lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 10% (10 lbs to 11 lbs).
Pomona Plant 5: annual Form-R pounds
TRACE site · MIXED pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Pomona Plant 5 year-over-year reported totals (increased by 10% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Lead compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 10 lbs | 1 |
| 2020 | 13 lbs | 1 |
| 2021 | 11 lbs | 1 |
| 2022 | 14 lbs | 1 |
| 2023 | 11 lbs | 1 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Lead compounds | 58 lbs | - |
Pomona Plant 5 in Los Angeles
Nearest TRI Facilities to Pomona Plant 5
Closest other reporters in California - including Consolidated Precision Products Corp, Cci Inc., Airgas USA LLC, ordered by distance.
Showing 8 of 1,148 other reporting facilities in California.
Similar Nonmetallic Mineral Product Facilities
Other Nonmetallic Mineral Product facilities with similar total release volumes (±80%), outside California - e.g. Gold Bond Building Products - Westwego, Knife River Materials Yard, Certainteed Gypsum.
Other Mcc Development Corp Facilities
Same-parent TRI sites ranked by reported releases - including Hawaiian Rock Products-Guam, Gardena Plant 25, Moreno Valley Plant 2.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Lead compounds; nearby reporters include Consolidated Precision Products Corp. Pomona Plant 5 stamps TRACE volume · MIXED pathway · CLEAN carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Pomona Plant 5 TRI extract (TRACE · MIXED · CLEAN · lead Lead compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Pomona Plant 5 totals are self-reported EPCRA §313 estimates for Pomona, CA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 327320 · Nonmetallic Mineral Product. 0.0% of Los Angeles TRI pounds in this extract. Nearest ABS peer: Imasen Bucyrus Technology-Tennessee (Δ 0 lbs). Pounds ≠ exposure.
Pomona Plant 5 stamps TRACE · MIXED pathway (air releases leads at 52.5%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov