---
title: "Superfund Sites (Batch)"
method: POST
path: "/v2/block/superfund"
tags: ["Census Block Level"]
---

# Superfund Sites (Batch)

`POST /v2/block/superfund`

Identify nearby federally-designated toxic contamination cleanup sites, providing crucial information on potential environmental hazards in a block's vicinity. 

Source: ATSDR (CDC) 

Pricing Tier: Basic 

Updated: Decennially

## Request Body Fields

<table><tr><th>Field</th><th>Type</th><th>Description</th><th>Example</th></tr>
<tr><td>[]</td><td>object</td><td></td><td></td>
        </tr>
<tr><td>[].block_id</td><td>string</td><td>15-digit US-census block ID</td><td>360050001001000</td>
        </tr>
</table>

## Response

<table><tr><th>Field</th><th>Type</th><th>Description</th><th>Example</th></tr>
<tr><td>within_miles_0</td><td>object</td><td>Superfund sites that the property is located on (if any).</td><td></td>
        </tr>
<tr><td>within_miles_0.count</td><td>integer</td><td>Number of Superfund sites in the area.</td><td>4</td>
        </tr>
<tr><td>within_miles_0.detail</td><td>array</td><td>Specifics for each Superfund site in the area (if any).</td><td></td>
        </tr>
<tr><td>within_miles_0.detail[]</td><td>object</td><td></td><td></td>
        </tr>
<tr><td>within_miles_0.detail[].site_name</td><td>string</td><td>Official name of the Superfund site.</td><td>Hazardous Waste Disposal Site</td>
        </tr>
<tr><td>within_miles_0.detail[].epa_site_id</td><td>string</td><td>Official ID of the Superfund site.</td><td>EPA12345</td>
        </tr>
<tr><td>within_miles_0.detail[].link</td><td>string</td><td>URL for site details hosted by the EPA.</td><td>https://www.epa.gov/superfund/hazardous-waste-disposal-site</td>
        </tr>
<tr><td>within_miles_0.detail[].npl_status</td><td>string</td><td>Status of the site on the National Priorities List.</td><td>Proposed</td>
        </tr>
<tr><td>within_miles_0.detail[].updated_date</td><td>string</td><td>Date when the site entry was last modified.</td><td>2023-07-15</td>
        </tr>
<tr><td>within_miles_1</td><td>object</td><td>Superfund sites within 1 mile of the property (if any).</td><td></td>
        </tr>
<tr><td>within_miles_1.count</td><td>integer</td><td>Number of Superfund sites in the area.</td><td>4</td>
        </tr>
<tr><td>within_miles_1.detail</td><td>array</td><td>Specifics for each Superfund site in the area (if any).</td><td></td>
        </tr>
<tr><td>within_miles_1.detail[]</td><td>object</td><td></td><td></td>
        </tr>
<tr><td>within_miles_1.detail[].site_name</td><td>string</td><td>Official name of the Superfund site.</td><td>Hazardous Waste Disposal Site</td>
        </tr>
<tr><td>within_miles_1.detail[].epa_site_id</td><td>string</td><td>Official ID of the Superfund site.</td><td>EPA12345</td>
        </tr>
<tr><td>within_miles_1.detail[].link</td><td>string</td><td>URL for site details hosted by the EPA.</td><td>https://www.epa.gov/superfund/hazardous-waste-disposal-site</td>
        </tr>
<tr><td>within_miles_1.detail[].npl_status</td><td>string</td><td>Status of the site on the National Priorities List.</td><td>Proposed</td>
        </tr>
<tr><td>within_miles_1.detail[].updated_date</td><td>string</td><td>Date when the site entry was last modified.</td><td>2023-07-15</td>
        </tr>
<tr><td>within_miles_4</td><td>object</td><td>Superfund sites within 4 miles of the property (if any).</td><td></td>
        </tr>
<tr><td>within_miles_4.count</td><td>integer</td><td>Number of Superfund sites in the area.</td><td>4</td>
        </tr>
<tr><td>within_miles_4.detail</td><td>array</td><td>Specifics for each Superfund site in the area (if any).</td><td></td>
        </tr>
<tr><td>within_miles_4.detail[]</td><td>object</td><td></td><td></td>
        </tr>
<tr><td>within_miles_4.detail[].site_name</td><td>string</td><td>Official name of the Superfund site.</td><td>Hazardous Waste Disposal Site</td>
        </tr>
<tr><td>within_miles_4.detail[].epa_site_id</td><td>string</td><td>Official ID of the Superfund site.</td><td>EPA12345</td>
        </tr>
<tr><td>within_miles_4.detail[].link</td><td>string</td><td>URL for site details hosted by the EPA.</td><td>https://www.epa.gov/superfund/hazardous-waste-disposal-site</td>
        </tr>
<tr><td>within_miles_4.detail[].npl_status</td><td>string</td><td>Status of the site on the National Priorities List.</td><td>Proposed</td>
        </tr>
<tr><td>within_miles_4.detail[].updated_date</td><td>string</td><td>Date when the site entry was last modified.</td><td>2023-07-15</td>
        </tr>
</table>

## Request body

- object[]
  - `block_id` string, required — 15-digit US-census block ID

## Response `200`

Success

- object[]
  - `block/superfund` object
    - `api_code_description` string
    - `api_code` unknown
    - `result` object, nullable
      - `within_miles_0` object — Superfund sites that the property is located on (if any).
        - `count` integer — Number of Superfund sites in the area.
        - `detail` object[] — Specifics for each Superfund site in the area (if any).
          - `site_name` string — Official name of the Superfund site.
          - `epa_site_id` string — Official ID of the Superfund site.
          - `link` string — URL for site details hosted by the EPA.
          - `npl_status` string — Status of the site on the National Priorities List.
          - `updated_date` string — Date when the site entry was last modified.
      - `within_miles_1` object — Superfund sites within 1 mile of the property (if any).
        - `count` integer — Number of Superfund sites in the area.
        - `detail` object[] — Specifics for each Superfund site in the area (if any).
          - `site_name` string — Official name of the Superfund site.
          - `epa_site_id` string — Official ID of the Superfund site.
          - `link` string — URL for site details hosted by the EPA.
          - `npl_status` string — Status of the site on the National Priorities List.
          - `updated_date` string — Date when the site entry was last modified.
      - `within_miles_4` object — Superfund sites within 4 miles of the property (if any).
        - `count` integer — Number of Superfund sites in the area.
        - `detail` object[] — Specifics for each Superfund site in the area (if any).
          - `site_name` string — Official name of the Superfund site.
          - `epa_site_id` string — Official ID of the Superfund site.
          - `link` string — URL for site details hosted by the EPA.
          - `npl_status` string — Status of the site on the National Priorities List.
          - `updated_date` string — Date when the site entry was last modified.
  - `block_info` BlockInfo
    - `block_id` string, nullable — 15-digit US-census block ID

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `429` — Rate limit exceeded

---

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