Missouri
Registry of Abandoned or Uncontrolled Hazardous Waste Sites
The Registry of Abandoned or Uncontrolled Hazardous Waste Sites, which the Missouri Department of Natural Resources also calls simply the Registry, is a list of sites in Missouri that are contaminated with hazardous waste. Missouri's Registry Law, section 260.440 of the Revised Statutes, went into effect in 1983. It requires the department to maintain the Registry and make it available for public review.
In a Phase I ESA
The Registry is a state list of hazardous waste sites made under a state law, which is why the handbook pairs it with the state Superfund equivalent record type that ASTM E1527-21 lists as a standard source. The department does not describe it that way; that pairing is the handbook's reading. The general reading of such a listing is on the state Superfund equivalent page. Four Missouri details shape how to read it.
- No new sites since 2003. The department says no new sites have been placed on the Registry since 2003, and that the Registry regulations were rescinded March 30, 2019. It says it still inspects current Registry sites annually and reassesses their classification.
- Each site has a class. The department says every listed site is placed in one of five categories by its need for remediation, based only on its potential impact on public health and the environment. Class 1 is an imminent danger needing immediate action. Class 2 is a significant threat needing action. Class 3 is no significant threat, with action possibly deferred. Class 4 is properly closed but needs continued management. Class 5 is properly closed with no evidence of present or potential adverse impact and no further action required, and Class 5 sites are removed from the Registry.
- A consent agreement is not a listing. The department says some owners of property proposed for the Registry chose to clean up instead. Eight owners negotiated a Registry Consent Agreement, and the department withdraws its Registry action when remediation is complete.
- Notices on the land. The department says its earlier regulations required a deed notice to be filed with the recorder of deeds in the county of the site, and that environmental covenants under the Missouri Environmental Covenants Act now serve that role where waste is left in place. Ask whether a recorded notice or covenant exists for a listed property.
What the annual report holds
State law requires the department to publish the Registry each year as the Missouri Registry Annual Report. The department says the report holds information about each site: name, address and owner; waste type and quantity; a site description; environmental problems and areas of concern; remedial or cleanup actions; the general geologic and hydrologic setting; a public drinking water advisory; and a health assessment. It says the report is available online as publication PUB0337.
Where to look a site up
- The most recent Missouri Registry Annual Report, PUB0337, on the department's document search.
- The department's E-Start map, which the department says is its public database of properties with restrictions under the Missouri Environmental Covenants Act.
- The department's Superfund Sites page, which links the Registry page.
Getting the file
The department says that if the annual report cannot be reached online, a Sunshine Law request can bring it on CD for $3. Site files are requested the same way.
Sources
Missouri Department of Natural Resources pages, read October 8, 2026, no modified date shown: