D.C. Mun. Regs. tit. 20, r. 20-4302
Upon entry, the Department may do any of the following:
If the Department obtains any samples from the premises or the vehicle, the Department shall give the owner, operator, or agent in charge a receipt that describes the samples obtained, and, if requested, a portion of each sample equal in volume or weight to the portion obtained. If any analysis is made of the samples, the Department shall promptly furnish the owner, operator, or agent in charge a copy of the results of the analysis made of the samples.
In addition to the information required to be produced during an inspection pursuant to § 4302.1(c) of this chapter the Department may require, in writing, that a generator, transporter, owner or operator of a regulated facility, or other person handling hazardous waste, used oil, or regulated medical waste provide any document, respond to specific questions, or provide other information with respect to any of the wastes or used oil, or the handling of the wastes or used oil, as may be necessary to determine compliance with the laws and rules listed in § 4300 of this chapter.
When the Department makes a written request for any document, response to specific questions, or other information pursuant to § 4302.3 of this chapter, the documents, responses, or other information shall be submitted to the Department within fourteen (14) calendar days of receipt of the request, unless the Department specifies a different time period.
The Department may require a generator, transporter, owner or operator of a regulated facility, or any other responsible person to take any necessary corrective action, including monitoring or testing, in accordance with the requirements of the laws and rules listed in § 4300 of this chapter.
When requiring a responsible person to take action pursuant to this chapter, the Department may, in addition to any other enforcement action authorized by law, issue a field notice or directive letter, that shall advise the responsible person of the action the person is required to take and state the time period within which the action must be performed.
Notwithstanding § 4302.6 of this chapter, the Department may give an oral directive to a responsible person to cease and desist from an activity in a situation where there is potential serious danger to human health or the environment, or to take immediate action to mitigate any hazard from a spill or release; provided, that the Department shall, as soon thereafter as practicable, issue a written directive incorporating the contents of the oral directive.
When hazardous waste, used oil, or regulated medical waste on a property pose an imminent threat to human health or the environment, the Department may post notice of the threat on the property and restrict access. The posting shall provide the public with notice that a dangerous condition exists, and shall prohibit the owner, operator, and agent in charge from removing or handling the chemicals or the waste without prior approval from the Department.
D.C. Mun. Regs. tit. 20, r. 20-4302