Contraindications to water decontamination include contamination with metallic sodium, lithium, calcium, potassium, cesium, and rubidium.1,12 Other contraindications to water decontamination include exposure to dusts of pure magnesium, sulfur, strontium, titanium, uranium, yttrium, zinc, and zirconium.1,12 These substances react violently with water and can cause secondary injury.1,12 Cover the patient and/or substance with mineral oil, remove the substance with forceps, and store it in a container with mineral oil.4,12 However, many of these substances may already have reacted with moisture on the patient's skin.1,12,13 Rapid removal of the chemical agent is better than allowing continuing injury to occur.6,13 Adding large amounts of water to the small amount of residual chemical on the patient's body poses little risk of creating a serious reaction hazard.13,14