N.H. Admin. Code § Env-Or 407.10

Current through Register No. 50, December 12, 2024

Section Env-Or 407.10 - Installation of Fueling Systems over Surface Waters

The following shall apply to UST systems, including but not limited to all associated piping systems, for fueling facilities at which fuel is dispensed over surface waters:

(a) All UST systems shall comply with the following, available as noted in Appendix B:

(1) NFPA 30, Flammable and Combustible Liquids Code;

(2) NFPA 30A, Motor Fuel Dispensing Facilities and Repair Garages; and

(3) NFPA 303, Marinas and Boatyards;

(b) Piping systems where tanks are at an elevation that produces a pressure due to gravity at the dispenser shall:

(1) Be equipped with an anti-siphon device installed adjacent to and downstream from a manually-operated shutoff valve; and

(2) Have the anti-siphon device and manual shutoff valve located inside a liquid-tight collection sump at the tank;

(c) All sumps shall be liquid-tight and have a sump sensor;

(d) Piping systems shall:

(1) Have continuous secondary containment and be equipped with liquid-tight intermediate sumps with sensors at locations where runs of continuous secondary containment are joined;

(2) Be equipped with flexible piping with secondary containment between any floating structure and the shore;

(3) Be equipped with a readily-accessible shutoff valve that is:

a. Located on the shore, as close to the shoreline as possible; and

b. Installed adjacent to and upstream from the flexible piping required by (2), above; and

(4) Be protected from physical damage;

(e) Dispensing nozzles shall be automatic closing type without a device that allows the dispensing nozzle to remain open;

(f) Piping shall not be in contact with surface water;

(g) Onshore marina dispensers installed on or after the 2018 effective date of this chapter that are designated for filling portable containers only shall have a level reinforced-concrete dispensing pad that:

(1) Is not less than 5 feet wide by 5 feet long; and

(2) Has positive limiting barriers that:

a. Have a volume of at least one gallon; and

b. Are installed as specified in Env-Or 405.07(b)(1) and (2); and

(h) Onshore marina dispensers that are designated to fuel boated trailers and other land-based equipment shall be constructed in accordance with Env-Or 405.07(b).

N.H. Admin. Code § Env-Or 407.10

(See Revision Note at chapter heading for Env-Or 400) #10393, eff 9-1-13

Amended by Volume XXXVIII Number 45, Filed November 8, 2018, Proposed by #12643, Effective 10/10/2018, Expires 10/10/2028.