N.H. Admin. Code § Env-Hw 507.02

Current through Register No. 45, November 7, 2024

Section Env-Hw 507.02 - Requirements for Containers and Tanks

(a) Containers and tanks used to accumulate hazardous waste shall be:

(1) In good condition;

(2) Chemically compatible with the waste stored therein such that no leakage or deterioration of the container or tank occurs; and

(3) Closed at all times except to add or remove waste.

(b) While accumulating hazardous waste in a container, a generator shall:

(1) Provide a minimum of 2 feet of aisle space to allow for inspection of at least one side of each container; and

(2) Position each container so that its hazardous waste label or marking is not hidden by walls or other containers and can be easily read without having to move any containers.

(c) Hazardous waste containers shall be stored on impervious surfaces. Impervious surfaces shall include concrete and asphalt unless cracks or holes are present, and shall not include earthen, wooden, or gravel surfaces.

(d) Except as provided in (e), below, hazardous waste containers shall not be stored in an area with functional floor drains or manholes, or in or near a sink with a functional drain present, unless secondary containment is provided around all hazardous waste containers in the area capable of containing the volume of the largest capacity hazardous waste container present.

(e) The containment system required by (d), above, or by (f)(3), below, shall not be required for areas that store containers holding only wastes that do not contain free liquids provided that:

(1) The area is sloped or is otherwise designed to drain and remove liquid resulting from precipitation; or

(2) The containers are elevated or otherwise protected from contact with accumulated liquid.

(f) Hazardous waste containers stored outside shall:

(1) Be covered to prevent precipitation from coming in contact with the tops of the containers except when being moved to another location;

(2) Be kept closed at all times except when the generator is actively adding wastes to or removing wastes from a container;

(3) Except as provided in (e), above, have secondary containment that:

a. Is adequate to hold any spills or leaks at 110% of the volume of the largest container in the area or 10% of the total volume of containers, whichever is greater; and

b. Is covered to keep the secondary containment structure free of rain, snow, and ice; and

(4) Not be stored within any of the following set-backs, subject to (g), below:

a. For surface waters, 50 feet;

b. For private wells, 75 feet;

c. The protective radius of any public water supply well; or

d. For storm drains, 50 feet.

(g) If a more protective set-back is required by any other state statute or rule, the more protective set-back shall apply.

N.H. Admin. Code § Env-Hw 507.02

#5053, eff 1-24-91; ss by #5886, eff 8-26-94; ss by #7333, eff 8-1-00; ss by #7578, eff 10-13-01; (See Revision Note at chapter heading for Env-Hw 500) ss by #9367, eff 1-28-09

Amended by Volume XXXVII Number 32, Filed August 10, 2017, Proposed by #12347, Effective 8/14/2017, Expires 8/14/2027.