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Maryland Proposes Contamination Reporting Rules Triggered by Concentration (not Quantity): Routine Transactional Due Diligence Could Pose a Problem

On October 31, the Maryland Department of the Environment (“MDE”) published a proposed regulation calling for reporting of hazardous substances found in the environment — that is, site contamination.  A routine investigation of real estate could trigger this obligation because the reporting thresholds would be concentrations of hazardous substances, not quantities.

Section 103 of the federal Comprehensive Environmental Response, Compensation and Liability Act, 42 U.S.C. § 9603, requires a person in charge of a facility to report a release of more than a reportable quantity of a hazardous substance.  A “reportable quantity” is just that — a quantity.  40 C.F.R. pt. 302 sets out a reportable quantity for each listed hazardous substance in pounds and kilograms.  Thus, if one observes a release of a knowable or calculable mass of material, one may have a duty to report.  Just finding a few parts per million in a small sample of soil or a few parts per billion in a sample of groundwater, however, does not necessarily result in knowledge of (a) a release at any particular time or (b) the quantity released.

MDE would set reporting thresholds in concentrations.  So, a soil sample containing more milligrams per kilogram or a groundwater sample containing more micrograms per liter of the hazardous substance would trigger the requirement to report the analytical result to MDE.

“Responsible persons” would have the reporting obligation.  “Responsible persons” under section 7-201 of the Environment Article are essentially the familiar four categories of responsible persons under CERCLA:  current owners and operators, owners and operators at the time of disposal, arrangers, and transporters.  A seller of real estate who learned of a test result might have to report it.  The purchaser probably would not if the purchaser did not close the transaction; after the closing, of course, the purchaser would be a “responsible person.”

The rule proposal appears at 41 Md. Reg. 1337 (Oct. 31, 2014), and would amend COMAR 26.14.02.  You can read a copy here.

The proposed reporting thresholds are not published in the Maryland Register, but appear in a June 2014 guidance document posted on the MDE website here.

The comment period on this proposal closes on December 1, 2014.

©2020 Greenberg Traurig, LLP. All rights reserved. National Law Review, Volume IV, Number 322

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About this Author

David G. Mandelbaum, Greenberg Traurig Law Firm, Philadelphia, Environmental Law Litigation Attorney
Shareholder

David G. Mandelbaum represents clients facing problems under the environmental laws and serves as Co-Chair of the firm's Environmental Practice. He regularly represents clients in lawsuits and has also helped clients achieve satisfactory outcomes through regulatory negotiation or private transactions. David teaches Superfund, and Oil and Gas Law in rotation at the Temple Law School. He has taught Environmental Law, Climate Change and Land Use Law and Administration in the past, and he is a regular writer and speaker on the subjects.

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