Site A / Plot M Disposal Site

Nuclear disposal site in Cook County, Illinois, US
Thing radioactive_waste_repository Q16821679
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Site A / Plot M Disposal Site

Summary

Site A / Plot M Disposal Site is a radioactive waste repository[1]. It is known by 6 alternative names across languages and contexts.[2]

Key Facts

  • Site A / Plot M Disposal Site is located in Cook County[3].
  • Site A / Plot M Disposal Site is in the country of United States[4].
  • Site A / Plot M Disposal Site's instance of is recorded as radioactive waste repository[5].
  • Site A / Plot M Disposal Site's instance of is recorded as code name[6].
  • Site A / Plot M Disposal Site's instance of is recorded as memorial stone[7].
  • Site A / Plot M Disposal Site is part of nuclear history of the United States[8].
  • Site A / Plot M Disposal Site's Commons category is recorded as Site A/Plot M Disposal Site[9].
  • Site A / Plot M Disposal Site's coordinate location is recorded as {'lat': 41.7022, 'lon': -87.912161111111}[10].
  • Site A / Plot M Disposal Site's facet of is recorded as radioactive waste[11].
  • Site A / Plot M Disposal Site's used by is recorded as Argonne National Laboratory[12].
  • Site A / Plot M Disposal Site's inscription is recorded as {'lang': 'en', 'text': "THE WORLD'S FIRST NUCLEAR REACTOR WAS REBUILT AT THIS SITE IN 1943 AFTER INITIAL OPERATION AT THE UNIVERSITY OF CHICAGO. THIS REACTOR (CP-2) AND THE FIRST HEAVY WATER MODERATED REACTOR (CP-3) WERE MAJOR FACILITIES AROUND WHICH DEVELOPED THE ARGONNE NATIONAL LABORATORY. THIS SITE WAS RELEASED BY THE LABORATORY IN 1965 AND THE U.S. ATOMIC ENERGY COMMISSION THEN BURIED THE REACTORS HERE."}[13].
  • Site A / Plot M Disposal Site's inscription is recorded as {'lang': 'en', 'text': 'CAUTION—DO NOT DIG BURIED IN THIS AREA IS RADIOACTIVE MATERIAL FROM NUCLEAR RESEARCH CONDUCTED HERE 1943–1949. BURIAL AREA IS MARKED BY SIX CORNER MARKERS 100FT FROM THIS CENTER POINT. THERE IS NO DANGER TO VISITORS. U.S. DEPARTMENT OF ENERGY 1978'}[14].

Body

Definition and Type

Recorded instance of include radioactive waste repository[5], code name[6], and memorial stone[7].

Use and Application

Site A / Plot M Disposal Site is part of nuclear history of the United States[8]. Its used by is recorded as Argonne National Laboratory[12].

Why It Matters

Site A / Plot M Disposal Site is known by 6 alternative names across languages and contexts.[2]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [4] . wikidata.org.
  2. [5] . wikidata.org.
  3. [6] . wikidata.org.
  4. [7] . wikidata.org.
  5. [3] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Site A / Plot M Disposal Site. Retrieved May 3, 2026, from https://4ort.xyz/entity/site-a-plot-m-disposal-site
MLA “Site A / Plot M Disposal Site.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/site-a-plot-m-disposal-site.
BibTeX @misc{4ortxyz_site-a-plot-m-disposal-site_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Site A / Plot M Disposal Site}}, year = {2026}, url = {https://4ort.xyz/entity/site-a-plot-m-disposal-site}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Site A / Plot M Disposal Site — https://4ort.xyz/entity/site-a-plot-m-disposal-site (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/site-a-plot-m-disposal-site · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 6d ago · Dirac · 2026-07-21 view diff on Wikidata ↗
    Used by Argonne National Laboratory
    Located in the administrative territorial entity Cook County
    Part of
    Country United States
    + 11 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ [[Property:P18]]: Caution - do not dig - Radioactive Material.jpg, [[:toollabs:quickstatements/#/batch/261411|batch #261411]]"
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