EPA TRI Facility · Nonmetallic Mineral Product
301931-STEPHENS #2 (nampa)
Nampa, ID
- Total releases
- 986 lbs
- Chemicals reported
- 3
- Latest report
- 2023
- Primary pathway
- Land Disposal
LAND Form-R mix
301931-STEPHENS #2 (nampa): how the 986 lbs splits
986 lbs across all reported pathways
- Land Disposal 986 lbs 100.0%
- Air Releases 0 lbs <0.1%
301931-STEPHENS #2 (nampa)'s 986 lbs Form-R total is LAND - land disposal is 100.0% of the bar. Next segment: air releases at <0.1%. Leading chemical by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
TRACE volume LAND pathway CLEAN
301931-STEPHENS #2 (nampa) is an EPA Toxics Release Inventory reporter in Nampa, ID, in the nonmetallic mineral product sector. It reported 460 lbs of releases across 3 chemicals in 2023, and 986 lbs in total across its 2020-2023 reporting years. That ranks 13,896 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Idaho's 123 reporting TRI sites, pounds #1 is not chemical-count #1. 301931-STEPHENS #2 (nampa) is pounds #76 and chemical-count #61 at 986 lbs. Hecla Ltd Lucky Friday Mine Unit leads reported pounds (58.7M lbs) at 10 chemicals (chemical-count #9). US Ecology Idaho Inc. leads chemical count at 75 chemicals (10.2M lbs, pounds #6). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Oldcastle Infrastructure & Idaho Sand & Gravel; Amalgamated Sugar Co Nampa; Maddens Ready Mix; Plexus Manufacturing Solutions (boi). Similar-scale Nonmetallic Mineral Product peers outside Idaho: Cemstone - Dayton; Five Star Products Inc.; Cemstone - Childs Road; James Hardie Building Products Cleburne. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Lead And Lead Compounds; Mercury And Mercury Compounds.
301931-STEPHENS #2 (nampa) stamps TRACE volume with a dominant LAND pathway (100.0% land disposal) across 3 chemicals. Cumulative Form-R extract: 986 lbs (2020–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Cemstone - Dayton and Five Star Products Inc..
301931-STEPHENS #2 (nampa) vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
986 lbs 47th percentile higher than 47% 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
301931-STEPHENS #2 (nampa) in the Nonmetallic Mineral Product sector extract
Among the 3,265 Nonmetallic Mineral Product facilities in this database, 301931-STEPHENS #2 (nampa) reports the 626th-largest volume, placing it in the top 19.2% of its sector. Scale peers outside Idaho include Cemstone - Dayton and Five Star Products Inc..
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- 301931-STEPHENS #2 (nampa)'s total reported releases rose from 210 lb in 2022 to 460 lb in 2023, based on EPA TRI filings.
- 301931-STEPHENS #2 (nampa)'s land releases rose from 210 lb in 2022 to 460 lb in 2023, based on EPA TRI filings.
301931-STEPHENS #2 (nampa) Form-R facts
Compare this facility
See how 301931-STEPHENS #2 (nampa) stacks up against nearby facilities and the typical reporter.
4.9× more than the comparison
57% 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 301931-STEPHENS #2 (nampa) releases toxic chemicals into the environment. Total: 986 lbs.
Emissions Trend Summary
From 2020 to 2023, total releases increased by 297% (116 lbs to 460 lbs).
301931-STEPHENS #2 (nampa): annual Form-R pounds
TRACE site · LAND pathway · TRI years 2020–2023
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows 301931-STEPHENS #2 (nampa) year-over-year reported totals (increased by 297% from 2020 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: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
| Year | Total | Chemicals |
|---|---|---|
| 2020 | 116 lbs | 3 |
| 2021 | 200 lbs | 3 |
| 2022 | 210 lbs | 3 |
| 2023 | 460 lbs | 3 |
Chemical Releases
Aggregated across all reporting years (2020–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 986 lbs | - |
| Lead And Lead Compounds | 0 lbs | - |
| Mercury And Mercury Compounds | 0 lbs | - |
301931-STEPHENS #2 (nampa) · LAND-pathway site
Nearest TRI Facilities to 301931-STEPHENS #2 (nampa)
Closest other reporters in Idaho - including Oldcastle Infrastructure & Idaho Sand & Gravel, Amalgamated Sugar Co Nampa, Maddens Ready Mix, ordered by distance.
Showing 8 of 122 other reporting facilities in Idaho.
Similar Nonmetallic Mineral Product Facilities
Other Nonmetallic Mineral Product facilities with similar total release volumes (±80%), outside Idaho - e.g. Cemstone - Dayton, Five Star Products Inc., Cemstone - Childs Road.
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 Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead And Lead Compounds, Mercury And Mercury Compounds; nearby reporters include Oldcastle Infrastructure & Idaho Sand & Gravel. 301931-STEPHENS #2 (nampa) stamps TRACE volume · LAND 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 301931-STEPHENS #2 (nampa) TRI extract (TRACE · LAND · CLEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
301931-STEPHENS #2 (nampa) totals are self-reported EPCRA §313 estimates for Nampa, ID, latest year 2023. Form-R rows span 2020–2023 (4 years). NAICS 327320 · Nonmetallic Mineral Product. 0.0% of Canyon TRI pounds in this extract. Nearest ABS peer: Jennings Bulk Plant (Δ 0 lbs). Pounds ≠ exposure.
301931-STEPHENS #2 (nampa) stamps TRACE volume · LAND pathway · CLEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution). PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. 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