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  1. California Open Data

    Surface Water - Habitat Results

    California State Water Resources Control BoardUpdated 5 Nov 2026

    … parquet format), and developers can also use the API associated with each year's dataset to access the …

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    • ZIP
    • CSV
  2. California Open Data

    Active Transportation Count Dataset

    CaltransUpdated 16 Oct 2026

    … Data is vendor-collected using technologies like video analytics, then shared with HQ via APIs or files for …

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    • XLSX
    • CSV
  3. California Open Data

    Surface Water - Benthic Macroinvertebrate Results

    California State Water Resources Control BoardUpdated 4 Nov 2026

    … parquet file format), and developers can use the API associated with the "CEDEN Benthic Data" (csv) resource to …

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    • CSV
    • ZIP
  4. California Open Data

    Surface Water - Toxicity Results

    California State Water Resources Control BoardUpdated 5 Nov 2026

    … parquet file format), and developers can use the API associated with the "Surface Water Toxicity" (csv) resource to …

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    • CSV
    • ZIP
  5. California Open Data

    Surface Water - Aquatic Organism Tissue Sample Results

    California State Water Resources Control BoardUpdated 4 Nov 2026

    … parquet format), and developers can also use the API associated with each year's dataset to access the …

    • PDF
    • ZIP
    • CSV
  6. California Open Data

    Surface Water - Chemistry Results

    California State Water Resources Control BoardUpdated 5 Nov 2026

    … parquet format), and developers can also use the API associated with each year's dataset to access the …

    • PDF
    • ZIP
    • CSV
“API” datasets · Open Data Finder