All outdoor above-ground facilities for the storage of any hazardous chemical substance shall be located at a minimum distance of 500 feet from any residential development or Residential Zone. Tanks or drums of fuel directly connecting with heating devices or appliances located on the same premises as the tanks or drums of fuel are excluded from this provision.

For the purposes of this section, a hazardous chemical substance shall be defined as any radioactive material or single substance or mixture containing a substance described in the following sections of the New Jersey Department of Environmental Protection "Proposed Hazardous Waste Management Regulations," N.J.A.C. Title 7, Subchapter F, Chapter 26, Subchapter 6, September, 1980:

6.12(e) and 6.12 (f) - specific chemicals listed as acutely hazardous or toxic.

6.13 - specific chemicals shown to have toxic, carcinogenic, mutagenic or teratogenic effects on humans or other life forms.

6.5(a) 2 - any chemical which is fatal to humans in low doses or exhibits toxicity in animals as follows:

Oral LD 50 (rat) < 50 mg/kg, inhalation LC 50 (rat) < 2 mg/liter or dermal Ld 50 (rabbit) < 200 mg/kg.

6.6 through 6.9 - chemicals which exhibit the characteristics of ignitability, corrosivity, reactivity or EP toxicity.

6.10 and 6.11 - chemical substances listed in the hazardous waste streams from nonspecific and specific sources.