County page
Maricopa County
Maricopa County currently shows 5 Superfund sites, 993 imported facility profiles, and 623,662 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 Maricopa County.
The latest loaded TRI year is 2024, with 623,662 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
Hassayampa Landfill
Hassayampa Landfill is in EPA's Superfund layer for Arlington, AZ. Live ingestion currently includes the official EPA detail links and geocoded site record.
Indian Bend Wash Area
Indian Bend Wash Area is in EPA's Superfund layer for Scottsdale, AZ. Live ingestion currently includes the official EPA detail links and geocoded site record.
Motorola Inc 52nd Street Plant
Motorola Inc 52nd Street Plant is in EPA's Superfund layer for Phoenix, AZ. Live ingestion currently includes the official EPA detail links and geocoded site record.
Phoenix Goodyear Airport Area
Phoenix Goodyear Airport Area is in EPA's Superfund layer for Goodyear, AZ. Live ingestion currently includes the official EPA detail links and geocoded site record.
Williams Air Force Base
Williams Air Force Base is in EPA's Superfund layer for Chandler, AZ. Live ingestion currently includes the official EPA detail links and geocoded site record.
Facilities
Worst polluters and compliance pressure
Cmc Steel Fabricators
No Violation Identified across 3 of the last 12 quarters, with $4,400 in recorded penalties.
Mesa Materials
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Maax Spas Industries Corp
No Violation Identified across 3 of the last 12 quarters, with $1,600 in recorded penalties.
New Wincup Holdings
Violation Identified across 5 of the last 12 quarters, with $10,920 in recorded penalties.
Federal Correction Institution-fci Phoenix
Significant noncompliance across 8 of the last 12 quarters in the imported ECHO record.
59th Ave Warehouse
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Aerotec International Inc
Violation across 12 of the last 12 quarters in the imported ECHO record.
M E Global Inc
Violation Identified across 6 of the last 12 quarters in the imported ECHO record.
National Memorial Cemetery-xtp001 - Cl2
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Apel Extrusions
Violation Identified across 6 of the last 12 quarters in the imported ECHO record.
Thatcher Company of Arizona
Significant Violation across 8 of the last 12 quarters in the imported ECHO record.
Tolleson Wwtp
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Adaman Mutual Water Co
Significant Violation across 11 of the last 12 quarters in the imported ECHO record.
Aspc Lewis Complex Wtr Sy
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Clear Springs - Sunsite Vista
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Grandview Water Company
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Mcprd - Buckeye Hills Recreation-tp001 - Cl2
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Pima Utilities-tp003 - Cl2
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Shangri la Ii Resort
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Stadium Chevron
Significant Violation across 11 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Certain glycol ethers | TRI-listed chemical | 8 | 92,497 lbs |
| Styrene | Volatile organic compound | 8 | 91,461 lbs |
| n-Butyl alcohol | TRI-listed chemical | 3 | 55,095 lbs |
| Ammonia | TRI-listed chemical | 9 | 54,205 lbs |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | TRI-listed chemical | 9 | 18,809 lbs |
| Copper | TRI-listed chemical | 18 | 18,169 lbs |
| Sulfuryl fluoride | TRI-listed chemical | 1 | 18,000 lbs |
| Formic acid | TRI-listed chemical | 2 | 17,189 lbs |
| Fluorine | TRI-listed chemical | 2 | 17,124 lbs |
| Toluene | Volatile organic compound | 12 | 15,304 lbs |
| Zinc compounds | TRI-listed chemical | 16 | 14,288 lbs |
| Methanol | TRI-listed chemical | 9 | 12,112 lbs |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | TRI-listed chemical | 7 | 11,788 lbs |
| Hydrogen fluoride | TRI-listed chemical | 10 | 10,876 lbs |
| N-Methyl-2-pyrrolidone | TRI-listed chemical | 5 | 9,752 lbs |
| Nitric acid | TRI-listed chemical | 23 | 9,590 lbs |
| Xylene (mixed isomers) | Volatile organic compound | 15 | 8,503 lbs |
| 1-Bromopropane | TRI-listed chemical | 1 | 7,533 lbs |
| Aluminum (fume or dust) | TRI-listed chemical | 1 | 6,449 lbs |
| Formaldehyde | TRI-listed chemical | 3 | 6,105 lbs |
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in Arizona
Arizona facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in Arizona
Arizona facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in Arizona
Arizona facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.