Skip to main content
09-1991-2500Administrative - FormalFinal Order IssuedFY 1991· Region 09

EPA v. M.E.W Study Area UAO for RD/RA

Case summary

This unilateral administrative order was issued under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 and requires the respondents to conduct remedial design and remedial action related to the Middlefield-Ellis-Whisman Study Area Superfund site in Mountain View, California.

Defendants (9)

  • National Semiconductor CorporationNamed in complaintNamed in settlement
  • NEC Electronics, Inc.Named in complaintNamed in settlement
  • Fairchild Semiconductor CorporationNamed in complaintNamed in settlement
  • Schlumberger Technology CorporationNamed in complaintNamed in settlement
  • Union Carbide Chemicals and Plastics Company Inc.Named in complaintNamed in settlement
  • Tracor X-Ray, Inc.Named in complaintNamed in settlement
  • General Instrument CorporationNamed in complaintNamed in settlement
  • Sobrato Development CompaniesNamed in complaintNamed in settlement
  • Siltec CorporationNamed in complaintNamed in settlement

Facilities (1)

  • M-E-W STUDY AREA

    SHERLAND AVE & N WHISMAN, MOUNTAIN VIEW, CA, 94043

    Registry ID: 110009329342

Statutes cited

  • CERCLA 106AImminent & Substantial Endangerment Order

Enforcement conclusions (2)

  • M.E.W Study Area UAO for RD/RAentered 1990-11-29

    Primary law: CERCLA

  • M.E.W Study Area UAO for RD/RAentered 2011-09-16

    Primary law: CERCLA

Timeline (2 milestones)

  • 2011-09-16Final Order Issued
  • 2011-10-05Enforcement Action Data Entered

Case metadata

EPA activity ID
2600062388
Case number
09-1991-2500
Lead agency
EPA
EPA region
09
Voluntary self-disclosure
No
Primary statute
Imminent & Substantial Endangerment Order

Sourced verbatim from EPA ECHO Enforcement Case Report for case 09-1991-2500 . Bulk data: ICIS-FEC download summary.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.