EPA v. CALIFORNIA GULCH & RIO GRAND WESTERN RR

Case summary

06/19/92: DENVER & RIO GRANDE WESTERN RAILROAD COMPANY IS A DELAWARE COMPANY WITH ITS PRINCIPLE PLACE OF BUSINESS IN DENVER, COLORADO. THE SITE IS THE CALIFORNIA GULCH SUPERFUND SITE ZINC SLAG PILE IN LEADVILLE, COLORADO. THE SITE CONTAINS SLAG PILES, COMPOSED PRIMARILY OF CALCIUM, MAGNESIUM, IRON, AND SILICA WITH RESIDUAL HEAVY METALS. SLAG IS MINERALIZED BYPRODUCT RESULTING FROM THE REFINEMENT OF ORES IN BLAST OR REVERBATORY FURNACES FOR THE RECOVERY OF NON-FERROUS METALS. RESPONDENT OWNS THREE SLAG PILES AT THE SITE. THE SITE ALSO CONTAINS AT LEAST ONE ZINC SLAG PILE. THROUGH SEVERAL SAMPLING AND ANALYSES, EPA HAS DETERMINED THAT THE SITE RELEASES OR HAS THE POTENTIAL TO RELEASE VARIOUS METALS, INCLUDING ARSENIC, CADMIUM, COPPER, LEAD, AND ZINC INTO THE SOILS, SURFACE WATER, GROUND WATER, STREAM SEDIMENT, AIR, AND FLORA AND FAUNA. THIS ORDER IS FOR REMEDIAL INVESTIGATION/FEASIBILITY STUDY ON THIS OPERABLE UNIT FOR SLAG. 03/15/94:------------------------------------------------> 03/15/94: RI WORK ALMOST COMPLETED. FINAL DRAFT RI HAS BEEN RELEASED FOR PUBLIC INSPECTION AND COMMENTS; FS TO BEGIN THIS SUMMER. A SEPARATE CD FOR RO/RA HAS BEEN ENTERED.

Defendants (2)

• CALIFORNIA GULCH SUPERFUND SITE - OU SLANamed in complaint
• DENVER & RIO GRANDE WESTERN RAILROADNamed in complaint

Facilities (1)

• CALIFORNIA GULCH

  S OF CY-YAK TUNNEL DOWNSTREAM, LEADVILLE, CO, 80461

  Registry ID: 110006000521

Statutes cited

• CERCLA 122 — Superfund
• CERCLA 104A — CERCLA 104(a)

Timeline (4 milestones)

• 1991-12-03Complaint Filed/Proposed Order
• 1991-12-03Final Order Issued
• 1992-06-19Enforcement Action Data Entered
• 1995-08-11Enforcement Action Closed