SECTION 165:26-8-40.2. Installation requirements for over-water piping

(a)   Steel piping.

(1)   Piping shall be installed with proper support and strain relief in order to eliminate the physical stress on the piping and piping connections caused by the constant movement of the water and floating dock. Fuel piping and electrical conduit shall be rigidly attached to the dock before the piping enters the sump area, in order to prevent strain on the entry boots and primary pipe fittings.

(2)   Steel flex connectors must be used between the shore piping and the piping on the floating structure and between separate sections of the floating structure to allow for movement of the dock and changes in water levels.

(3)   Onshore piping must be rigidly anchored in place to prevent movement when water levels are elevated.

(4)   A listed emergency breakaway device designed to retain liquid on both sides of the breakaway point must be installed on each line serving the dock. The breakaway device shall be located where the dock piping will separate from the shore or secured ramp piping. The piping shall be secured at both ends of the breakaway device so that the piping will withstand the forces and pressures exerted upon it.

(5)   There must be a normally closed explosion proof solenoid valve with built-in pressure relief or a normally closed explosion proof solenoid valve and a pressure relief valve installed in each product line at the shoreline.

(6)   A ball valve must be installed at the shoreline in order to manually shut off the flow of fuel.

(7)   Containment sumps must be installed under all dispensers and monitored with sensors. If a pressure system is used all sump sensors must automatically control the electricity to both the solenoid valves and submerged pump. If a suction system is used the sump sensors should automatically control the electricity to both the solenoid valve and suction pump motor.

(8)   If the onshore piping is double walled a transition sump is required at the shoreline in order to contain a release from the onshore piping. The transition sump must contain the ball valve and solenoid valve and be rigidly anchored in place.

(b)   Double walled piping.

(1)   Double walled piping must be installed according to the double wall piping manufacturer recommendations.

(2)   All double walled piping installed above the water shall be enclosed inside a rigid metal chase or conduit except at joints requiring flexibility. A flexible metal conduit can be used between shore piping and piping on the floating structure or between separate sections of the floating structure to allow for movement of the dock and changes in water levels. Both the rigid and flexible metal chase/conduit must shield the fuel pipe from damage by fire and in itself be fire resistant.

(3)   Due to the constant movement of the water and the floating dock, piping shall be installed with proper support and strain relief in order to eliminate the physical stress on the piping and piping connections. Fuel piping and electrical conduit shall be rigidly attached to the dock before the piping enters the sump area, in order to prevent strain on the entry boots and primary pipe fittings.

(4)   Onshore piping must be rigidly anchored in place to prevent movement when water levels are elevated.

(5)   A listed emergency breakaway device designed to retain liquid on both sides of the breakaway point must be installed on each line serving the dock. The breakaway device shall be located where the dock piping will separate from the shore or secured ramp piping. The piping shall be secured at both ends of the breakaway device so that the piping will withstand the forces and pressures exerted upon it.

(6)   There must be a normally closed explosion proof solenoid valve with built-in pressure relief or a normally closed explosion proof solenoid valve and a pressure relief valve installed in each product line at the shoreline.

(7)   A ball valve must be installed at the shoreline in order to manually shut off the flow of fuel. It must be installed so that it is accessible to the operator at all water levels.

(8)   Containment sumps must be installed under all dispensers and monitored with sensors. If a pressure system is used all sump sensors must automatically control the electricity to both the solenoid valves and submerged pump. If a suction system is used the sump sensors should automatically control the electricity to both the solenoid valve and suction pump motor.

(9)   A transition sump must be rigidly anchored in place either on the dock or at the shoreline. The transition sump must contain the ball valve, solenoid valve, and emergency breakaway device. The transition sump must be either monitored with a sensor or a bypass tube must be used in order to divert a leak from the transition sump to the dispenser sump where it would be detected by a sensor.

[Source: Added at 23 Ok Reg 144, eff 10-6-05 (emergency); Added at 23 Ok Reg 2297, eff 7-1-06; Amended at 34 Ok Reg 958, eff 9-11-17]