County page
Nevada County
Nevada County currently shows 1 Superfund site, 48 imported facility profiles, and 0 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 Nevada County.
The latest loaded TRI year is 2024, with 0 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
Lava Cap Mine
Lava Cap Mine is in EPA's Superfund layer for Nevada City, CA. Live ingestion currently includes the official EPA detail links and geocoded site record.
Facilities
Worst polluters and compliance pressure
Lake of the Pines Wwtp
Violation Identified across 12 of the last 12 quarters, with $6,000 in recorded penalties.
Lake Wildwood Wwtp
Violation Identified across 11 of the last 12 quarters, with $15,000 in recorded penalties.
Grass Valley Wastewater Treatment Plant
Violation Identified across 12 of the last 12 quarters, with $3,000 in recorded penalties.
Donner Summit Wwtf
Violation Identified across 8 of the last 12 quarters, with $36,000 in recorded penalties.
Wm of Nevada County
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
East Bennett Road Chipping Facility
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Nevada City Wastewater Treatment Plant
Violation Identified across 5 of the last 12 quarters, with $12,000 in recorded penalties.
Cascade Shores Wwtp
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Floriston Water System
Violation Identified across 11 of the last 12 quarters in the imported ECHO record.
Ups Grass Valley Cagva
No Violation Identified with $5,300,000 in recorded penalties.
Sierra Estates Mutual Water Company-iron + Manganese Tx
Violation Identified across 8 of the last 12 quarters in the imported ECHO record.
Malakoff Diggins State Park
Violation Identified across 3 of the last 12 quarters, with $3,000 in recorded penalties.
Skyler Electric Co., Inc
Significant Violation across 2 of the last 12 quarters, with $2,800 in recorded penalties.
Penn Valley Shopping Center
Significant noncompliance across 5 of the last 12 quarters in the imported ECHO record.
Empire Mine State Historical Park
Violation Identified across 4 of the last 12 quarters in the imported ECHO record.
Donner Mine Camp Inc
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
Ncsos, Mccourtney Rd.-aeration
Violation Identified across 4 of the last 12 quarters in the imported ECHO record.
Rough & Ready Mhp Water System
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
Shady Creek Outdoor School
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
Washington Water District
Violation Identified across 4 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|
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.