East Bay Regional Park District

source · source-ebrpd-del-valle-swimming

Original source: East Bay Regional Park District

Claims and evidence

Swimming advisory

caution
Evidence and sources (4)

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

Spatial scope IDs: scope-del-valle-east-beach

  1. Evidence stance: supports · Evidence details

    At retrieval, the EBRPD page posted a blue-green algae Caution Advisory for the East Swim Beach and stated that the West Swim Beach had no water because of low lake levels.

    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

  2. Evidence stance: supports · Evidence details

    At retrieval, the current-conditions table listed a Caution Advisory for the Del Valle East Swim Beach and no advisory for the West Swim Beach, where it reported no water because of low lake levels.

    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

  3. Evidence stance: supports · Evidence details

    At retrieval, East Beach had a blue-green algae Caution Advisory and West Beach had no water because of low lake levels.

    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

  4. Evidence stance: supports · Evidence details

    At retrieval, the table listed a Caution algae advisory at Del Valle East Beach and no advisory at West Beach, where there was no water because of low lake levels.

    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

Water availability

no water
Evidence and sources (4)

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

Spatial scope IDs: scope-del-valle-west-beach

  1. Evidence stance: supports · Evidence details

    At retrieval, the EBRPD page posted a blue-green algae Caution Advisory for the East Swim Beach and stated that the West Swim Beach had no water because of low lake levels.

    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

  2. Evidence stance: supports · Evidence details

    At retrieval, the current-conditions table listed a Caution Advisory for the Del Valle East Swim Beach and no advisory for the West Swim Beach, where it reported no water because of low lake levels.

    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

  3. Evidence stance: supports · Evidence details

    At retrieval, East Beach had a blue-green algae Caution Advisory and West Beach had no water because of low lake levels.

    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

  4. Evidence stance: supports · Evidence details

    At retrieval, the table listed a Caution algae advisory at Del Valle East Beach and no advisory at West Beach, where there was no water because of low lake levels.

    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

Lifeguard schedule

Days
weekends and holidays
Hours
  • 11:00
  • 18:00
Season
May 16 through September 27
Year stated
No
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The Del Valle swimming page lists lifeguards 11 AM-6 PM on weekends and holidays from May 16 through September 27, two beaches, and year-round swimming without lifeguards north of the boat ramp.

    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

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

Published swimming page parking fee usd

10
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The Del Valle swimming page displays a $10 parking fee without seasonal or vehicle-type detail.

    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

Swimming safety guidance

Check posted signs
Yes
Days to avoid after rain
3
Keep dogs away
Yes
Keep water out of mouth
Yes
Shower and dry after
Yes
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    The page advises keeping water out of the mouth, showering and towel-drying promptly after swimming, avoiding lake swimming for three days after rain, checking posted water-quality signs, and keeping dogs away from the water.

    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

Located in

park-del-valle-regional-park
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-east-beach

  1. Evidence stance: supports · Evidence details

    The Del Valle swimming page lists lifeguards 11 AM-6 PM on weekends and holidays from May 16 through September 27, two beaches, and year-round swimming without lifeguards north of the boat ramp.

    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

Located in

park-del-valle-regional-park
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-west-beach

  1. Evidence stance: supports · Evidence details

    The Del Valle swimming page lists lifeguards 11 AM-6 PM on weekends and holidays from May 16 through September 27, two beaches, and year-round swimming without lifeguards north of the boat ramp.

    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

Unlifeguarded swimming area

Allowed
year round
Lifeguard service
No
Location
north of boat ramp
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    The Del Valle swimming page lists lifeguards 11 AM-6 PM on weekends and holidays from May 16 through September 27, two beaches, and year-round swimming without lifeguards north of the boat ramp.

    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 (5)

At retrieval, East Beach had a blue-green algae Caution Advisory and West Beach had no water because of low lake levels.

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

The Del Valle swimming page displays a $10 parking fee without seasonal or vehicle-type detail.

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

The Del Valle swimming page lists lifeguards 11 AM-6 PM on weekends and holidays from May 16 through September 27, two beaches, and year-round swimming without lifeguards north of the boat ramp.

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

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

The page advises keeping water out of the mouth, showering and towel-drying promptly after swimming, avoiding lake swimming for three days after rain, checking posted water-quality signs, and keeping dogs away from the water.

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.