Wisconsin Administrative Code › Department of Natural Resources › NR 700-799 - Environmental Protection - Investigation and Remediation of Environmental Contamination › Chapter NR 716 - Site Investigations › Section NR 716.13 - Sampling and analysis requirements

Current through June 24, 2024
(1)Responsible
				parties shall use laboratory analyses of environmental media samples which are
				collected, handled and analyzed in compliance with subs. (2) to (17) to confirm
				the nature and extent and evaluate the impacts of contamination, if a field
				investigation is required under s.
				NR
				716.11(1). Analytical methods used
				shall be suitable for the matrix, type of analyte, expected level of analyte,
				regulatory limit, and potential interferences in the samples to be
				tested.
(2)All chemical and
				physical analyses for which accreditation is available under ch. NR 149 shall
				be conducted by a laboratory accredited under ch. NR 149.
(3)Responsible parties may use non-laboratory
				methods of sample analysis, including field screening with a photoionization
				detector or flame ionization detector, analysis with a field gas chromatograph,
				geophysical or downhole probe surveying, non-certified mobile laboratory
				analysis, immunoassays and other appropriate methods, to supplement the
				information derived from laboratory analysis of samples. If non-laboratory
				methods are used at a location from which a laboratory sample is collected,
				responsible parties shall use separate samples for the non-laboratory and the
				laboratory analyses, unless the target compound is not subject to loss or
				alteration through sample handling.
(4)All soil samples obtained during the field
				investigation for the purpose of defining the degree and extent of the
				contamination shall be discrete, not composite, samples, unless the department
				explicitly approves in advance composite sampling for a specific site
				situation.
(5)Maximum holding times
				for soils shall be in accordance with the sampling method, sample storage
				container, and analytical methods used.
(6)Responsible parties shall provide for the
				following quality control and quality assurance procedures, at a minimum, when
				collecting samples for laboratory analysis for a field investigation conducted
				under this chapter:
(a) Chain of custody shall
				be documented from the time of sample collection to the receipt of the sample
				by the analytical laboratory. Chain of custody documentation shall be in
				compliance with ch. NR 149, and shall be submitted to the department with the
				sample results.
(b) For soil
				samples, one temperature blank for every shipping container of samples that
				require cooling for preservation, unless samples are received by the laboratory
				on ice, unless another temperature is required by the analytical method
				used.
(c) For water samples:
1. One replicate sample for every 10 or less
				samples.
2. One equipment blank for
				every 10 or less samples, unless dedicated sampling equipment is used to
				prevent cross-contamination.
3. One
				trip blank for each shipping container that contained volatile
				samples.
4. One temperature blank
				for every shipping container of samples that require cooling for preservation,
				unless samples are shipped on ice.
(d) Decontamination of all sampling
				instruments between each sampling event, unless dedicated or disposable
				sampling devices are used in a manner that prevents cross contamination or
				other unintended contamination of samples.