New Jersey Administrative Code
Title 7 - ENVIRONMENTAL PROTECTION
Chapter 1E - DISCHARGES OF PETROLEUM AND OTHER HAZARDOUS SUBSTANCES
Subchapter 2 - PREVENTION AND CONTROL OF DISCHARGES AT MAJOR FACILITIES
Section 7:1E-2.6 - Facility drainage and secondary containment
Universal Citation: NJ Admin Code 7:1E-2.6
Current through Register Vol. 56, No. 24, December 18, 2024
(a) All portions or areas of a major facility in which hazardous substances are routinely refined, produced, stored, held, handled, processed, or transferred shall be designed so that any leak will be prevented from becoming a discharge.
(b) Secondary containment or diversion structures to prevent leaked hazardous substances from becoming discharges include:
1. Dikes, berms
or retaining walls;
2.
Curbing;
3. Gutters, culverts and
drainage systems;
4. Diversion
ponds, lagoons, retention basins, holding tanks, sumps, slop tanks and other
collecting systems;
5. Drip pans;
or
6. Other equivalent means
approved by the Department.
(c) Secondary containment or diversion systems, structures or equipment shall meet the following standards:
1. The secondary containment or diversion
system must block all probable routes by which leaked hazardous substances
could reasonably be expected to become discharges;
2. The capacity of the secondary containment
or diversion system shall include an additional capacity to accommodate six
inches of rainwater, if the secondary containment or diversion structure is
located such that rainwater could accumulate in it, and shall be:
i. For storage areas, the volume of the
largest tank or container within the area;
ii. For tank car or tank truck
loading/unloading areas, the volume of the largest compartment in any tank car
or tank truck utilizing the area;
iii. For buried pipes, the maximum volumetric
flow rate multiplied by the maximum amount of time between the detection of a
leak and the shutdown of the pipe; or
iv. For process areas, the volume of the
largest piece of equipment in the area, or the maximum volumetric flow rate
through the area multiplied by the maximum amount of time between the detection
of a leak and the shutdown of the system, whichever is greater;
3. All components of the secondary
containment or diversion system shall be made of or lined with impermeable
materials, which must be maintained in an impermeable condition. Existing
systems for existing aboveground storage tanks are exempt from this requirement
if the existing system:
i. Can protect ground
water for the period of time needed to clean up and remove a leak, up to the
entire volume of the largest tank utilizing the system. The Department may
require evidence of the ability of the secondary containment or diversion
system to protect ground water, including, but not limited to, soil
permeability testing, measurements of the depth to ground water beneath the
secondary containment or diversion system, and response times for cleaning up a
leak of the entire contents of the largest tank utilizing the system;
ii. Allows the visual detection of leaks;
and
iii. Is inspected daily in
accordance with
N.J.A.C.
7:1E-2.10;
4. No process area, loading or unloading
area, diked storage area or other storage area, or secondary containment or
diversion system appurtenant thereto shall drain into a watercourse, or into a
ditch, sewer, pipe or storm drain that leads directly or indirectly into a
watercourse or public sewage treatment plant, unless provision is made to:
i. Retain, by valves or other positive means,
any accumulated precipitation until it can be ascertained to the satisfaction
of the Department that no hazardous substances will be discharged to the
environment; or
ii. Intercept any
leaked hazardous substances in a permitted industrial wastewater treatment or
pretreatment facility or other facility operated in accordance with a valid and
effective NJPDES or NPDES permit;
5. Diversion systems must be designed to
handle the reasonably expected flow rate from a leak into them;
6. Incompatible materials shall not be stored
within the same containment area if there is a substantial likelihood of them
mixing in the event of leakage. This restriction does not apply to process
areas where the substances are brought into proximity as part of a production
process; and
7. Secondary
containment systems shall not be used as backup storage systems nor for any
other purpose that would impair their capacity to contain leaks.
Disclaimer: These regulations may not be the most recent version. New Jersey may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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