County page
Boulder County
Boulder County currently shows 2 Superfund sites, 446 imported facility profiles, and 40,504 lbs in loaded TRI releases.
Overview
What this county page is saying
This live county page is generated from the ingested EPA datasets. It merges ECHO facility compliance rows, TRI release totals, and any Superfund sites attached to Boulder County.
The latest loaded TRI year is 2024, with 40,504 lbs in county-level on-site releases tied to the imported facility set.
Focus points
Design and product notes
County pages combine facility compliance history with chemical release totals.
TRI chemistry shows what is being reported, while ECHO shows who keeps drawing enforcement attention.
Superfund records add legacy cleanup context even when live contaminant detail is still sparse.
Superfund layer
Cleanup sites in this county
Captain Jack Mill
Captain Jack Mill is in EPA's Superfund layer for Ward, CO. Live ingestion currently includes the official EPA detail links and geocoded site record.
Marshall Landfill
Marshall Landfill is in EPA's Superfund layer for Boulder, CO. Live ingestion currently includes the official EPA detail links and geocoded site record.
Facilities
Worst polluters and compliance pressure
Cemex Construction Materials South Llc
Significant Violation across 11 of the last 12 quarters, with $1,943,425 in recorded penalties.
Western Aggregates Incorporated (txi)
Significant Violation across 12 of the last 12 quarters, with $688,000 in recorded penalties.
Boulder Open Space Seep Outfalls 002a and 003a
Significant Violation across 12 of the last 12 quarters, with $458,211 in recorded penalties.
Cross and Caribou Mines
Violation Identified across 12 of the last 12 quarters, with $59,300 in recorded penalties.
Univ of Colo Boulder - Campus
Significant Violation across 12 of the last 12 quarters, with $35,000 in recorded penalties.
1155 Canyon Condominiums
Significant noncompliance across 10 of the last 12 quarters, with $46,800 in recorded penalties.
1301 Canyon Condominium
Significant noncompliance across 10 of the last 12 quarters, with $39,000 in recorded penalties.
Western Foundries Inc
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Notch 66
Significant noncompliance across 7 of the last 12 quarters, with $9,000 in recorded penalties.
Ready Mixed Concrete Co Plant 14
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Arcosa Esc Boulder
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
San Lazaro Mhp Wwtf
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
929 Pearl St Dewatering System
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Balarat Outdoor Education Center
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Barnard Quarry
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Boulder Commons
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Boulder County Transportation Dept
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Boulder Municipal Airport
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Cu Utilities Services
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Erie Wwtf
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Methanol | TRI-listed chemical | 2 | 10,550 lbs |
| Certain glycol ethers | TRI-listed chemical | 1 | 7,400 lbs |
| Acetonitrile | TRI-listed chemical | 3 | 6,412 lbs |
| Methyl tert-butyl ether | TRI-listed chemical | 2 | 5,900 lbs |
| Ammonia | TRI-listed chemical | 1 | 3,518 lbs |
| Dichloromethane | TRI-listed chemical | 2 | 1,604 lbs |
| N, N-Dimethylformamide | TRI-listed chemical | 1 | 1,170 lbs |
| Toluene | Volatile organic compound | 2 | 1,085 lbs |
| n-Hexane | TRI-listed chemical | 1 | 1,010 lbs |
| N-Methyl-2-pyrrolidone | TRI-listed chemical | 2 | 765 lbs |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | Metals and metal compounds | 2 | 319 lbs |
| 1, 4-Dioxane | TRI-listed chemical | 1 | 255 lbs |
| Zinc compounds | TRI-listed chemical | 1 | 255 lbs |
| Lead compounds | Metals and metal compounds | 4 | 155 lbs |
| Chromium | Metals and metal compounds | 3 | 59 lbs |
| Nickel | Metals and metal compounds | 3 | 24 lbs |
| Mercury compounds | TRI-listed chemical | 1 | 12 lbs |
| Pyridine | TRI-listed chemical | 1 | 6 lbs |
| Manganese | TRI-listed chemical | 1 | 5 lbs |
| Hydrogen fluoride | TRI-listed chemical | 1 | 1 lbs |
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in Colorado
Colorado facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in Colorado
Colorado facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in Colorado
Colorado facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.