County page
Riverside County
Riverside County currently shows 3 Superfund sites, 508 imported facility profiles, and 135,175 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 Riverside County.
The latest loaded TRI year is 2024, with 135,175 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
Alark Hard Chrome
Alark Hard Chrome is in EPA's Superfund layer for Riverside, CA. Live ingestion currently includes the official EPA detail links and geocoded site record.
March Air Force Base
March Air Force Base is in EPA's Superfund layer for Riverside, CA. Live ingestion currently includes the official EPA detail links and geocoded site record.
Stringfellow
Stringfellow is in EPA's Superfund layer for Jurupa Valley, CA. Live ingestion currently includes the official EPA detail links and geocoded site record.
Facilities
Worst polluters and compliance pressure
Western Riverside Co Reg Wwtp
Violation Identified across 9 of the last 12 quarters, with $294,000 in recorded penalties.
Metal Container Corp
Violation Identified across 7 of the last 12 quarters in the imported ECHO record.
Corona Wwtp 1
Violation Identified across 5 of the last 12 quarters, with $177,000 in recorded penalties.
Qg Printing Corporation
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Kent Seatech Llc
Violation Identified across 5 of the last 12 quarters, with $30,000 in recorded penalties.
Ama Plastics
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Ameriflex Inc
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Corona Energy Partners
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Cryoworks, Inc.
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Dart Container Corporation of California
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Elastomer Technologies, Inc (eti)
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Gxo Logistics
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Hollandia Farms North
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
International Paper Company
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Jackman Machining
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
National Distribution Centers Llc
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
National Distribution Centers Lp
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Promach - Corona
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Ramona Dairy
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Riverside Machine Works Inc
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| n-Butyl alcohol | TRI-listed chemical | 2 | 39,951 lbs |
| Certain glycol ethers | TRI-listed chemical | 3 | 30,942 lbs |
| Styrene | Volatile organic compound | 3 | 27,073 lbs |
| Ammonia | TRI-listed chemical | 3 | 25,800 lbs |
| Methanol | TRI-listed chemical | 3 | 5,906 lbs |
| Xylene (mixed isomers) | Volatile organic compound | 2 | 1,298 lbs |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | Metals and metal compounds | 2 | 588 lbs |
| Ethylbenzene | Volatile organic compound | 3 | 395 lbs |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | TRI-listed chemical | 1 | 348 lbs |
| 1, 2, 4-Trimethylbenzene | Volatile organic compound | 1 | 255 lbs |
| Formic acid | TRI-listed chemical | 1 | 249 lbs |
| Dicyclopentadiene | TRI-listed chemical | 1 | 222 lbs |
| Phthalic anhydride | TRI-listed chemical | 1 | 132 lbs |
| Maleic anhydride | TRI-listed chemical | 1 | 118 lbs |
| Zinc compounds | TRI-listed chemical | 1 | 117 lbs |
| Ethylene glycol | TRI-listed chemical | 1 | 115 lbs |
| Lead compounds | Metals and metal compounds | 16 | 84 lbs |
| n-Hexane | TRI-listed chemical | 1 | 80 lbs |
| Naphthalene | TRI-listed chemical | 2 | 77 lbs |
| Toluene | Volatile organic compound | 1 | 57 lbs |
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in California
California facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in California
California facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in California
California facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.