Current through Register Vol. 50, No. 9, September 20, 2024
A. The owner or operator of surface
impoundment units subject to LAC 33:V.4462.A must develop and keep on-site
until closure of the facility a response action plan. The response action plan
must set forth the actions to be taken if the action leakage rate has been
exceeded. At a minimum, the response action plan must describe the actions
specified in Subsection B of this Section.
B. If the flow rate into the leak detection
system exceeds the action leakage rate for any sump, the owner or operator
must:
1. notify the administrative authority
in writing of the exceedence within seven days of the determination;
2. submit a preliminary written assessment to
the administrative authority within 14 days of the determination as to the
amount of liquids, likely sources of liquids, possible location, size, and
cause of any leaks, and short-term actions taken and planned;
3. determine to the extent practicable the
location, size, and cause of any leak;
4. determine whether waste receipt should
cease or be curtailed, whether any waste should be removed from the unit for
inspection, repairs, or controls, and whether or not the unit should be
closed;
5. determine any other
short-term and long-term actions to be taken to mitigate or stop any leaks;
and
6. within 30 days after the
notification that the action leakage rate has been exceeded, submit to the
administrative authority the results of the analyses specified in Paragraphs
B.3-5 of this Section, the results of actions taken, and actions planned.
Monthly thereafter, as long as the flow rate in the leak detection system
exceeds the action leakage rate, the owner or operator must submit to the
administrative authority a report summarizing the results of any remedial
actions taken and actions planned.
C. To make the leak and/or remediation
determinations in Paragraphs B.3-5 of this Section, the owner or operator must:
1. assess the sources of liquids and amounts
of liquids by source;
2. conduct a
fingerprint, hazardous constituent, or other analyses of the liquids in the
leak detection system to identify the sources of liquids and possible location
of any leaks, and the hazard and mobility of the liquids; and
3. assess the seriousness of any leaks in
terms of potential for escaping into the environment; or
4. document why such assessments are not
needed.
AUTHORITY NOTE:
Promulgated in accordance with
R.S.
30:2180 et
seq.
