EPA v. VASQUEZ BOULEVARD/INTERSTATE 70 SITE - OU #2; CITY AND COUNTY OF DENVER

Case summary

Investigations in and near the Site found many areas where surface and subsurface soils contained levels of arsenic and lead above what was considered background levels: 15 milligrams/kilograms ( mg/kg ) for arsenic and 400 mg/kg for lead. In particular, limited sampling of soils along the proposed route of the storm water drainage feature show arsenic levels up to 48 mg/kg and lead levels up to 1400 mg/kg and sampling on property adjacent to the proposed route showed arsenic levels up to 1400 mg/kg and lead levels up to 100,000 mg/kg. Levels of arsenic and lead well above background levels show a release of a hazardous substance to the environment at the Site. Excavation of these metal contaminated soils threaten additional releases of these hazardous substances to the environment.

Defendants (1)

• City and County of DenverNamed in complaintNamed in settlement

Facilities (1)

• VASQUEZ BOULEVARD/I-70 SUPERFUND SITE

  4550 HUMBOLT STREET, DENVER, CO, 80216

  Registry ID: 110020051628

Statutes cited

• CERCLA 122A — Agreement to Perform Work Under 104B
• CERCLA 106A — Imminent & Substantial Endangerment Order
• CERCLA 107A — Cost Recovery
• CERCLA 104E2 — Information and/or Access

Enforcement conclusions (1)

• VASQUEZ BOULEVARD/INTERSTATE 70 SITE - OU #2; CITY AND COUNTY OF DENVERentered 2015-07-01

  Primary law: CERCLA

Timeline (2 milestones)

• 2015-07-01Final Order Issued
• 2015-08-14Enforcement Action Data Entered