CalEPA / DTSC / OEHHA data contract

Provenance

PublisherCalEPA / DTSC / OEHHA

API basehttps://services3.arcgis.com/Oy2JTCD10wkoelxS/arcgis/rest/services

Freshness & coverage

FreshnessFreshness not declared

GeographicNot declared

TemporalNot declared

AuthenticationNo credentials required

Methods (5)

searchEnvirostorSites

read

DTSC Envirostor cleanup-site database (~13.7K). Filter county/projectName/siteType/status.

Input schema

{
  "type": "object",
  "properties": {
    "siteCode": {
      "type": "string"
    },
    "projectName": {
      "type": "string"
    },
    "siteType": {
      "type": "string"
    },
    "status": {
      "type": "string",
      "examples": [
        "Active"
      ]
    },
    "nationalPrioritiesList": {
      "type": "string"
    },
    "city": {
      "type": "string"
    },
    "county": {
      "type": "string",
      "examples": [
        "Kern"
      ]
    },
    "bbox": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "near": {
      "type": "object",
      "properties": {
        "lat": {
          "type": "number"
        },
        "lon": {
          "type": "number"
        },
        "radiusMiles": {
          "type": "number"
        }
      },
      "required": [
        "lat",
        "lon",
        "radiusMiles"
      ],
      "additionalProperties": false
    },
    "limit": {
      "type": "number"
    },
    "format": {
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "records"
          ]
        },
        {
          "type": "string",
          "enum": [
            "geojson"
          ]
        }
      ]
    }
  },
  "additionalProperties": false
}

County stored UPPERCASE. NPL: YES/NO/DELISTED string.

searchCalEnviroScreen

read

CalEnviroScreen 4.0 (~8K census tracts). PiP via {lat, lon}. Filter minCIscoreP/minCIdecile.

Input schema

{
  "type": "object",
  "properties": {
    "tract": {
      "type": "string"
    },
    "lat": {
      "type": "number",
      "examples": [
        35.37
      ]
    },
    "lon": {
      "type": "number",
      "examples": [
        -119.02
      ]
    },
    "minCIscoreP": {
      "type": "number"
    },
    "minCIdecile": {
      "type": "number"
    },
    "county": {
      "type": "string"
    },
    "bbox": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "near": {
      "type": "object",
      "properties": {
        "lat": {
          "type": "number"
        },
        "lon": {
          "type": "number"
        },
        "radiusMiles": {
          "type": "number"
        }
      },
      "required": [
        "lat",
        "lon",
        "radiusMiles"
      ],
      "additionalProperties": false
    },
    "limit": {
      "type": "number"
    },
    "format": {
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "records"
          ]
        },
        {
          "type": "string",
          "enum": [
            "geojson"
          ]
        }
      ]
    }
  },
  "additionalProperties": false
}

NO county column — keyed by census tract. Use bbox/near/PiP for spatial.

searchHazardousWasteFacilities

read

DTSC HWTS Active Facilities (~107K RCRA). Filter facilityName/epaId/facType (G/T/TSDF).

Input schema

{
  "type": "object",
  "properties": {
    "facilityName": {
      "type": "string"
    },
    "epaId": {
      "type": "string"
    },
    "facType": {
      "type": "string",
      "examples": [
        "TSDF"
      ]
    },
    "county": {
      "type": "string"
    },
    "bbox": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "near": {
      "type": "object",
      "properties": {
        "lat": {
          "type": "number"
        },
        "lon": {
          "type": "number"
        },
        "radiusMiles": {
          "type": "number"
        }
      },
      "required": [
        "lat",
        "lon",
        "radiusMiles"
      ],
      "additionalProperties": false
    },
    "limit": {
      "type": "number"
    },
    "format": {
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "records"
          ]
        },
        {
          "type": "string",
          "enum": [
            "geojson"
          ]
        }
      ]
    }
  },
  "additionalProperties": false
}

NO county column. FAC_TYPES is comma-set (G,T / G,TSDF / G,T,TSDF).

searchBrownfields

read

Envirostor scoped to brownfield site_types (Voluntary Cleanup + Calmortgage + School Cleanup).

Input schema

{
  "type": "object",
  "properties": {
    "projectName": {
      "type": "string"
    },
    "status": {
      "type": "string"
    },
    "city": {
      "type": "string"
    },
    "county": {
      "type": "string",
      "examples": [
        "Los Angeles"
      ]
    },
    "bbox": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "near": {
      "type": "object",
      "properties": {
        "lat": {
          "type": "number"
        },
        "lon": {
          "type": "number"
        },
        "radiusMiles": {
          "type": "number"
        }
      },
      "required": [
        "lat",
        "lon",
        "radiusMiles"
      ],
      "additionalProperties": false
    },
    "limit": {
      "type": "number"
    },
    "format": {
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "records"
          ]
        },
        {
          "type": "string",
          "enum": [
            "geojson"
          ]
        }
      ]
    }
  },
  "additionalProperties": false
}

No standalone DTSC Brownfields Feature Service exists upstream.

getServiceInfo

read

Schema + record counts for any of 3 services (CalEPA / DTSC / OEHHA). Pass `service` to scope.

Input schema

{
  "type": "object",
  "properties": {
    "service": {
      "type": "string",
      "examples": [
        "envirostor"
      ]
    }
  },
  "additionalProperties": false
}