Nev. Admin. Code § 459.9938 - Marina storage tanks: Filling equipment; monitoring; testing; daily inventory records
1. Except as
otherwise provided in subsection 3, all aboveground marina storage tanks must
be filled through a liquid-tight connection enclosed in a grounded fill pipe
spill-containment box that is located at least 3 feet above the ground and at
least 20 feet away from a body of water and is capable of containing a minimum
of 5 gallons.
2. Except as
otherwise provided in subsection 3, all marina storage tanks filled by means of
remote piping must have installed in the piping at a point where connection and
disconnection is made between the tank and a delivery vehicle either a check
valve and shutoff valve with a quick-connect coupling or a check valve with a
dry-break coupling. The check valve device must be protected from tampering and
physical damage.
3. The provisions
of subsections 1 and 2 do not apply to a marina storage tank:
(a) With a capacity of 1,100 gallons or less;
or
(b) That is not equipped to
accept a tight-fill and is instead filled from a delivery nozzle on a delivery
vehicle.
4. Except for
double-walled, aboveground marina storage tanks which are exempt from weekly
monitoring requirements and except as otherwise provided in subsection 6,
aboveground marina storage tanks must be visually inspected weekly for leaks.
The results of the weekly visual inspections must be dated and
recorded.
5. Except as otherwise
provided in subsection 6, aboveground marina storage tanks must be :
(a) Visually inspected monthly in accordance
with the provisions of subsection 2 of NAC
590.740; and
(b) In addition to the visual inspection
pursuant to paragraph (a), inspected monthly using a method of release
detection that is described in and conducted in accordance with
40 C.F.R. §
280.43(a)-(d) and
(g).
6. Weekly and monthly monitoring of an
aboveground marina storage tank is not required when a marina is closed during
the off-season if the tank contains only a de minimis quantity of
fuel.
7. All underground or
underwater piping that is not double-walled with interstitial leak sensors must
be tightness-tested for leaks in accordance with the requirements of
40 C.F.R. §
280.41(b).
8. All electronic and mechanical equipment
used for release detection, monitoring or warning must be tested for proper
operation and calibration annually or pursuant to the manufacturer's
recommendation, whichever is more frequent.
9. If, because of the nature of the
aboveground marina storage tank or its secondary containment, visual
inspections are not adequate for the purpose of determining whether a leak has
occurred, an owner or operator of an aboveground storage tank shall keep daily
inventory records. Daily inventory records for the most recent 3 years must be
kept on the premises or made available for inspection upon 24 hours' notice.
Daily inventory records are not required when a marina is closed during the
off-season if the tank contains only a de minimis quantity of fuel.
10. Upon request by the Division, the owner
or operator of an aboveground marina storage tank must make available to the
Division any records of the monitoring or inspection of an aboveground marina
storage tank conducted pursuant to this section that the owner or operator is
required to maintain pursuant to
40 C.F.R. §
280.45.
Notes
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