Perfect World

Superfund / California

NPL Site · EPA Region 9

Hewlett-Packard (620-640 Page Mill Road)

Palo Alto, Santa Clara County, California

Industry (inferred)Technology & Electronics
Computing & data
EPA IDCAD980884209
HRS score29.76
ProposedJune 24, 1988
ListedFebruary 21, 1990
Construction completeSeptember 16, 1997
Deleted

Regulatory timeline

  1. June 24, 1988Proposed for the NPL
  2. February 21, 1990Established on the NPL (final listing)
  3. September 16, 1997Construction completed

Projected reinspection cycle

CERCLA requires a five-year review while hazards remain on site. These dates are projected from this site's cleanup timeline — they are estimates, not EPA-published dates. Check the site progress profile for the actual review schedule.

  1. September 16, 2022Projected five-year review (reinspection), cycle 5
  2. September 16, 2027Projected five-year review (reinspection), cycle 6
  3. September 16, 2032Projected five-year review (reinspection), cycle 7

Official EPA records