# COMAR Title 26 — Department of the Environment

## Subtitle 13 — Disposal of Controlled Hazardous Substances

### Chapter 02 — Identification and Listing of Hazardous Waste

#### Regulation .13 Characteristic of Reactivity.

*COMAR 26.13.02.13*

A. A solid waste exhibits the characteristic of reactivity if a representative sample of the waste has any of the following properties:

  (1) It is normally unstable and readily undergoes violent change without detonating;

  (2) It reacts violently with water;

  (3) It forms potentially explosive mixtures with water;

  (4) When mixed with water, it generates toxic gases, vapors, or fumes in a quantity sufficient to present a danger to human health or the environment;

  (5) It is a cyanide or sulfide bearing waste which, when exposed to pH conditions between 2 and 12.5, can generate toxic gases, vapors, or fumes in a quantity sufficient to present a danger to human health or the environment;

  (6) It is capable of detonation or explosive reaction if it is subjected to a strong initiating source or if heated under confinement;

  (7) It is readily capable of detonation or explosive decomposition or reaction at standard temperature and pressure;

  (8) It is a:

    (a) Forbidden explosive as defined in 49 CFR §173.54; or

    (b) Division 1.1, 1.2, or 1.3 explosive as defined in 49 CFR §173.50 and 173.53.

B. A solid waste that exhibits the characteristic of reactivity has the EPA Hazardous Waste Number of D003.