Nevada Administrative Code
Chapter 459 - Hazardous Materials
STORAGE TANKS
Section 459.9936 - Marina storage tanks: Piping and valves

Universal Citation: NV Admin Code 459.9936

Current through September 16, 2024

1. If, on a marina storage tank:

(a) A submersible pump is used, a listed emergency shutoff valve must be installed at each dispensing device.

(b) A suction pump-type dispensing device is used, a listed vacuum-actuated shutoff valve with a shear section or equivalent-type valve must be installed directly under each dispensing device.

2. Piping and valves subject to pressure extremes caused by thermal expansion of the contents must be equipped with a pressure-relieving device that has secondary containment.

3. Aboveground piping runs must be enclosed in protective containment leading to a catch basin equipped with an operating automatic leak-detection audible alarm and shutoff device.

4. Except as otherwise provided in subsection 5, any new or replacement underground piping installed after October 31, 2005, must be:

(a) Constructed of nonmetallic components;

(b) Double-walled and integral with a listed leak sensor; and

(c) Installed with a tracer locator wire installed in all buried piping trenches.

5. Existing facilities which have metallic or single-walled nonmetallic piping and which are permanently relocated to a fuel island must install dispenser sumps with leak sensors. Any additions to the metallic piping must be nonmetallic single- or double-walled piping.

6. For piping used at floating marinas:

(a) Suitable lengths of oil-, weather- and UV-resistant flexible hose, UL-approved for use at marinas, must be used between the onshore piping and the piping on the floating structure.

(b) Piping at all hinge locations must be connected with UL-approved listed flexible piping.

(c) All docks and pier installations must have double-walled piping.

(d) A listed emergency breakaway device designed to retain liquid on both sides of the breakaway point must be installed in a spill containment box monitored with a leak sensor on each line serving the dock and anchored at the onshore end of the piping.

Added to NAC by Environmental Comm'n by R083-05, eff. 10-31-2005

NRS 459.826, 459.830

Disclaimer: These regulations may not be the most recent version. Nevada 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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