County page
Loudoun County
Loudoun County currently shows 1 Superfund site, 210 imported facility profiles, and 5,590 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 Loudoun County.
The latest loaded TRI year is 2024, with 5,590 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
Hidden Lane Landfill
Hidden Lane Landfill is in EPA's Superfund layer for Sterling, VA. Live ingestion currently includes the official EPA detail links and geocoded site record.
Facilities
Worst polluters and compliance pressure
Hiway Mobile Home Community Llc
Violation Identified across 10 of the last 12 quarters, with $60,252 in recorded penalties.
Chantilly Place
Significant noncompliance across 5 of the last 12 quarters, with $12,971 in recorded penalties.
Us Postal Service-dulles Vehicle Maintenance Facil
Violation Identified across 10 of the last 12 quarters in the imported ECHO record.
Hillsboro Pub
Significant noncompliance across 10 of the last 12 quarters in the imported ECHO record.
One Stop Trailer Park
Violation Identified across 9 of the last 12 quarters in the imported ECHO record.
Superior Concrete - Dulles
Violation Identified across 5 of the last 12 quarters in the imported ECHO record.
Dupont Fabros Tech - Ashburn Corp Ctr
Significant noncompliance across 8 of the last 12 quarters in the imported ECHO record.
Round Hill Town Wastewater Treatment Plant
Violation Identified across 8 of the last 12 quarters in the imported ECHO record.
Middleburg Academy, Inc
Violation Identified across 7 of the last 12 quarters in the imported ECHO record.
Lovettsville Town Wastewater Treatment Facility
No Violation Identified across 2 of the last 12 quarters, with $20,703 in recorded penalties.
Mwaa - Washington Dulles International Airport
Violation Identified across 6 of the last 12 quarters in the imported ECHO record.
Eit 2 0 Wastewater Treatment Plant
Violation Identified across 6 of the last 12 quarters in the imported ECHO record.
Cyrusone Kincora
No Violation Identified across 1 of the last 12 quarters, with $18,279 in recorded penalties.
Equinix Llc (73946)
No Violation Identified across 1 of the last 12 quarters, with $16,871 in recorded penalties.
Aligned Energy Data Centers (ashburn), Llc
No Violation Identified with $35,696 in recorded penalties.
Hillsboro Town Wastewater Treatment Package Plant
Violation Identified across 5 of the last 12 quarters in the imported ECHO record.
Cyrusone Sterling Ix/x/xi
No Violation Identified across 1 of the last 12 quarters, with $6,630 in recorded penalties.
Tart Lumber Company, Inc.
Significant noncompliance across 5 of the last 12 quarters in the imported ECHO record.
Intergate - Ashburn, Llc
No Violation Identified across 1 of the last 12 quarters, with $4,134 in recorded penalties.
Cyrusone Northern Virginia Data Center - Maries Road
No Violation Identified with $10,429 in recorded penalties.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | TRI-listed chemical | 8 | 3,573 lbs |
| Methyl tert-butyl ether | TRI-listed chemical | 1 | 638 lbs |
| Toluene | Volatile organic compound | 1 | 307 lbs |
| Xylene (mixed isomers) | Volatile organic compound | 1 | 305 lbs |
| Naphthalene | TRI-listed chemical | 1 | 178 lbs |
| 1, 2, 4-Trimethylbenzene | Volatile organic compound | 1 | 106 lbs |
| Benzene | Volatile organic compound | 1 | 68 lbs |
| Ethylbenzene | Volatile organic compound | 1 | 68 lbs |
| n-Hexane | TRI-listed chemical | 1 | 43 lbs |
| Formaldehyde | TRI-listed chemical | 1 | 9 lbs |
| Copper compounds | TRI-listed chemical | 1 | 2 lbs |
| Mercury compounds | TRI-listed chemical | 1 | 2 lbs |
| Arsenic | TRI-listed chemical | 1 | 1 lbs |
| Chromium | Metals and metal compounds | 1 | 1 lbs |
| Polycyclic aromatic compounds | TRI-listed chemical | 1 | 1 lbs |
| Lead compounds | Metals and metal compounds | 3 | 0 lbs |
| Cadmium | TRI-listed chemical | 1 | 0 lbs |
| Nitric acid | TRI-listed chemical | 1 | 0 lbs |
| Beryllium | TRI-listed chemical | 1 | 0 lbs |
| Benzo[g, h, i]perylene | TRI-listed chemical | 1 | 0 lbs |
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in Virginia
Virginia facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in Virginia
Virginia facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in Virginia
Virginia facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.