Observation

observation · observation-ebrpd-mussels-history-survey

Claims and evidence

Prior waterbody screening

List is growing
Yes
Lookback days
30
Published flagged waters
  • Contra Loma Reservoir
  • Sacramento-San Joaquin Delta
  • San Luis Reservoir
  • Bethany Reservoir
  • San Justo Reservoir
  • Lake Mead
  • Lake Havasu
  • San Benito County waters
  • California south of Tehachapi Mountains
  • waters outside California
Evidence and sources (1)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-ebrpd-inspected-lakes

  1. Evidence stance: supports · Evidence details

    Inspection includes a 30-day vessel-history survey and hands-on visual check. The survey flags use in an infested water body, including Contra Loma, the Delta, San Luis, Bethany, San Justo, Lakes Mead and Havasu, San Benito County, California south of the Tehachapis, and waters outside California; the page warns that this list is growing.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Recorded observations

Browse observations separately (1)

Inspection includes a 30-day vessel-history survey and hands-on visual check. The survey flags use in an infested water body, including Contra Loma, the Delta, San Luis, Bethany, San Justo, Lakes Mead and Havasu, San Benito County, California south of the Tehachapis, and waters outside California; the page warns that this list is growing.

Publisher
East Bay Regional Park District
Observer / attribution
user-supplied page transcription
Observed at
2026-09-20T00:00:00+00:00
Retrieved at
2026-09-20T00:00:00+00:00

Retrieval time does not establish when an event occurred.

Observation details · Source details · Original source: East Bay Regional Park District

Published record history

History lists published operations; it does not reconstruct removed content or confirm that external media remains available.

JSON

Historical evidence is not a guarantee of current conditions.