Samplers and Sampling Procedures for Hazardous Waste Streams

Book excerpt: The goal of this project was to develop simple but effective sampling equipment and procedures for collecting, handling, storing, and recording samples of hazardous wastes. The report describes a variety of sampling devices designed to meet the needs of those who regulate and manage hazardous wastes. Particular emphasis is given to the development of a composite liquid waste sampler, the Coliwasa. This simple device is designed for use on liquid and semi-liquid wastes in a variety of containers, tanks, and ponds. Devices for sampling solids and soils are also described. In addition to the sampling devices, the report describes procedures for development of a sampling plan, sample handling, safety precautions, proper recordkeeping and chain of custody, and sample containment, preservation, and transport. Also discussed are certain limitations and potential sources of error that exist in the sampling equipment and the procedures. The statistics of sampling are covered briefly, and additional references in this area are given.