Observation

observation · observation-ebrpd-water-quality-program

Claims and evidence

Del valle beach monitoring

April october
weekly
November march
twice monthly
Sample sites per beach
2
Sign inputs
  • bacteria
  • blue green algae
Evidence and sources (2)

No claim effective interval recorded.

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    Del Valle beaches are sampled for bacteria weekly April-October and twice monthly November-March, with two sample sites per beach. Posted stop-light signs combine latest bacteriological tests and blue-green algae conditions.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    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

  2. Evidence stance: supports · Evidence details

    EBRPD routinely monitors recreational and drinking water, storm water, wastewater, lakes and creeks, and responds to sewage, oil, and hazardous-material incidents. Natural swim areas are sampled weekly April-October in collaboration with county environmental-health departments, with current data posted for safe recreation choices.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    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

Water quality program scope

  • recreational water
  • drinking water
  • storm water
  • wastewater
  • lakes
  • creeks
  • water related emergencies
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-ebrpd-water-quality-program

  1. Evidence stance: supports · Evidence details

    EBRPD routinely monitors recreational and drinking water, storm water, wastewater, lakes and creeks, and responds to sewage, oil, and hazardous-material incidents. Natural swim areas are sampled weekly April-October in collaboration with county environmental-health departments, with current data posted for safe recreation choices.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    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)

EBRPD routinely monitors recreational and drinking water, storm water, wastewater, lakes and creeks, and responds to sewage, oil, and hazardous-material incidents. Natural swim areas are sampled weekly April-October in collaboration with county environmental-health departments, with current data posted for safe recreation choices.

Publisher
East Bay Regional Park District
Observer / attribution
user-supplied page transcription
Observed at
Unknown
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.