Idaho Administrative Code
Title IDAPA 16 - Health and Welfare, Department of
Rule 16.02.24 - CLANDESTINE DRUG LABORATORY CLEANUP
Section 16.02.24.400 - CLEARANCE SAMPLING REQUIREMENTS

a. Sample locations are photographed and show the floor plan of the property, all of which are included in the final report required under Section 600 of these rules.

b. Samples are obtained, preserved, and handled under professional standards for the types of samples and analytical testing to be conducted under the chain of custody protocol.

c. Samples are analyzed by a laboratory certified by the U.S. Environmental Protection Agency or accredited by the American Industrial Hygiene Association laboratory accreditation program for the analyte being analyzed.

d. Sampling locations are numerically identified and the numbered sampling locations delineated on the floor plan, visible in photographs, and linked to samples.

e. Standard three inch by three (3x3) inch gauze are used for all sampling. The gauze must be wetted with analytical grade methanol or isopropanol and each surface sampled wiped at least five (5) times in two (2) perpendicular directions and the gauze turned onto itself throughout the wiping process.

f. After sampling, the sample is placed in a new, clean sample container and sealed with a Teflon-lined lid. The sample container must be labeled with the site or project identification number, date, time, and sample location, and be handled by professional standards and conducted under the chain of custody protocol.

g. Discrete sampling is used in areas expected to have the highest levels of contamination, as identified on the Department approved form. A ten (10) centimeter by ten (10) centimeter area (one hundred square centimeters (100 cm2), or approximately sixteen (16) square inches) must be sampled from non-porous surfaces such as floors, walls, appliances, sinks, or countertops in each room. The sample area must be composed of no fewer than three (3) discrete samples.

h. All other rooms of the property with lowest levels of contamination are sampled using one (1) discrete sample per room.

i. A ten (10) centimeter by ten (10) centimeter area (one hundred square centimeters (100 cm2), or approximately sixteen (16) square inches) is sampled from the ventilation system in a location to be determined by the qualified industrial hygienist.