NR 149.03 Note
The note in s. NR 149.02 (2) (d)
provides a list of department administrative rules of covered programs requiring accreditation under this chapter.
Deficiency” means a documented or verifiable deviation from the requirements of this chapter that is noted during an on-site evaluation or while reviewing analytical data produced by a laboratory.
Department” means the department of natural resources.
EPA” means the United States environmental protection agency.
“Field of accreditation” means a 3-tiered unit by which the department uses to grant laboratories accreditation as specified under s. NR 149.13
For hire” means offering analyses for payment or non-monetary compensation.
Initial calibration blank” or “ICB” means an aliquot that consists of the same matrix as that used for the calibration standards, but without the analytes, analyzed following the initial calibration and prior to quantitating any samples to verify the absence of instrumental interferences.
Initial calibration verification standard” or “ICV standard” means a standard of known concentration, prepared using second source standards, analyzed following the initial calibration and prior to quantitating any samples to assure initial calibration accuracy.
Internal standard” means a known concentration of standard added to a sample or quality control sample as a reference for evaluating and controlling the precision and bias of the analytical method.
Laboratory” means a facility that performs tests in connection with a covered program that requires data from an accredited laboratory. A facility consisting of a principal laboratory and annexes within 5 miles of the principal laboratory may be considered a single laboratory. When the terms “laboratory” or “laboratories” are used unmodified in this chapter, the terms include laboratories accredited under this chapter and those seeking accreditation under this chapter.
Laboratory control sample” or “LCS” means a sample of a matrix without the analytes of interest or a matrix with a consistent concentration of the analytes of interest, fortified with a verified known amount of the analytes of interest. The purpose of an LCS is to determine whether the methodology is in control and whether the laboratory can make accurate and precise measurements.
NR 149.03 Note
In many EPA methods, the term “lab-fortified blank” is equivalent to an LCS.
Laboratory equipment” means any support equipment or analytical instrument necessary to or involved in generating the results of an analysis.
Limit of detection” or “LOD” means the lowest concentration or amount of analyte that can be identified, measured, and reported with confidence that the concentration is not a false positive value. The department considers the LOD to be equivalent to the method detection limit and is determined under the method cited in sub. (46)
Limit of quantitation” or “LOQ” means the lowest concentration or amount of an analyte for which quantitative results can be obtained.
Maximum contaminant level” or “MCL” means the maximum permissible level of a contaminant in water that is delivered to any user of a public water system.
Method” means a procedure used for measuring the presence and concentration of physical and chemical pollutants.
Method blank” means a clean matrix that is treated and processed exactly as a sample including exposure to all glassware, equipment, solvents, reagents, internal standards, and surrogates to measure artifacts in the measurement process.
NR 149.03 Note
In many EPA methods, the term “laboratory reagent blank” is equivalent to a method blank.
Method detection limit” or “MDL” means the minimum measured concentration of a substance that can be reported with 99% confidence that the measured concentration is distinguishable from method blank results. The MDL is generated according to the procedure specified in the latest revision of 40 CFR Part 136
, Appendix B.
NR 149.03 Note
Links to 40 CFR Part 136
, Appendix B can be found on the Wisconsin department of natural resources laboratory accreditation program website.
NIST” means the National Institute for Standards and Technology.
Non-aqueous” includes all matrices that are not drinking water or aqueous. It includes soils, sediments, sludges, organic liquids, oils, solid waste, and multi-phasic wastes. Leachates are accredited under the non-aqueous matrix.
Nonconformance” means a documented or verifiable deviation from the requirements of this chapter or a deviation from the requirements of a quality system.
On-site evaluation” means an assessment conducted by the department at a laboratory seeking or maintaining accreditations to determine actual or potential compliance with the requirements of this chapter.
Ownership” means owning or controlling, directly or indirectly, a laboratory facility through an equity interest, or its equivalent, of 10% or more.
Pesticide” means a chemical substance defined in s. 94.67 (25)
, Stats., an isomer of a pesticide or a degradation product or metabolic product of a pesticide.
Precision” means the degree to which a set of observations or measurements of the same property, obtained under similar conditions, conform to themselves. Precision is usually expressed as the standard deviation, variance, or range, in either absolute or relative terms.
Proficiency testing sample” or “PT sample” means a sample obtained from an approved proficiency testing sample provider to evaluate the ability of a laboratory to produce an analytical test result meeting the definition of acceptable performance outlined in s. NR 149.27
. The concentration of the analyte in the sample is unknown to the laboratory at the time of analysis.
Qualify” means a written statement accompanying or referencing test results to identify anomalies or deviations from the requirements in this chapter that were encountered in generating the results.
Quality assurance” means an integrated system of activities involving planning, control, assessment, reporting, and improvement to ensure that a product or service meets defined standards of quality.
Quality control” means the overall system of technical activities designed to measure and control the quality of a product or service that meets the stated needs of users.
Quality control limit” means the acceptance criteria used to evaluate quality control samples. Quality control limits may be those published by the department, referenced in a method or calculated by a laboratory. In this chapter, quality control limits calculated by a laboratory will be referred to as generated in-house control limits.
Quality system” means a structured and documented management arrangement describing the policies, objectives, principles, organizational authority, responsibilities, accountability, and implementation plan of an organization for ensuring quality in its work processes, products, and services.
Raw data” means any original information from a measurement activity or study recorded in media that allows the reconstruction and evaluation of the activity or study. “Raw data” include absorbance, emission counts, area counts, peak heights, abundance, and millivolts. Raw data may be stored in hard copy or electronically.
Reagent water” means water which has been treated to remove any impurities that may affect the quality of an analysis.
Reference material” means a material that has one or more sufficiently well-established properties that can be used for calibrating or verifying the calibration of support equipment or analytical instruments.
Registration” or “registered” means registration under s. 299.11 (8)
, Stats., of laboratories that perform tests solely on its own behalf or that of a subsidiary under common ownership or control in accordance with the standards and requirements of this chapter. Registered laboratories do not perform drinking water testing.
Relative standard error” or “RSE” means the standard error divided by the mean for a set of calibration data and expressed as a percentage. The RSE is calculated according to the following formula:
xi = true amount of analyte in calibration level
i, in mass or concentration units.
x‵i = measured amount of analyte in calibration level i, in mass or concentration units.
p = number of terms in the fitting equation.
NR 149.03 Note
average = 1, linear = 2, quadratic = 3, cubic = 4
n = number of calibration points.
Relocation” means a move by a laboratory resulting in a change in the laboratory's physical address.
Replicate” means two or more substantially equal aliquots analyzed independently for the same analyte.
Residual” means the difference, expressed as a percent, between the theoretical concentration of a calibration standard and the value derived from the calibration function from the measured response of the calibration standard.
Result” means the quantitative or qualitative output of an analysis, including measurements, determinations, and information obtained or derived from tests.
Revocation” means cancellation of a laboratory's accreditation.
Second source standard” means a standard procured from a supplier or manufacturer different from the supplier or manufacturer of a laboratory's calibration standards, or a standard obtained from the same supplier or manufacturer of a laboratory's calibration standards from a lot verifiably different from the lot of the calibration standards.
Sensitivity” means the capability of a method or instrument to discriminate between measurement responses representing different levels of analyte, or the capability of a method or instrument to detect an analyte at or greater than a stated quantity.
Subcontract” means the act of procuring analytical services from a certified laboratory.
NR 149.03 Note
Registered laboratories only do testing for their own facility. Another facility, under the same ownership, can procure analytical services from a registered laboratory.
Support equipment” means devices that may not be analytical instruments, but that are necessary to support laboratory tests and operations. “Support equipment” includes autoclaves, balances, ovens, refrigerators, freezers, incubators, water baths, temperature measuring devices, sample preparation devices, and volumetric dispensing devices when quantitative results depend on the accuracy of the support equipment.
Surrogate” means a substance unlikely to be found in environmental samples, with properties similar to those of analytes of interest, which is used to evaluate the bias of an analysis in the fortified sample.
Suspension” means a temporary cancellation of a laboratory's certification.
Temperature blank” means a sample container, of at least 40 mL capacity, filled with water and transported with each shipment of collected samples to determine the temperature of other samples in the shipment on arrival at a laboratory.
Test” means any chemical, biological, physical, radiological, or microscopic assay, examination, or analysis conducted by a laboratory on water, wastewater, groundwater, a biosolid, a waste material, a hazardous substance, or any other matrix analyzed to determine compliance with a covered program.
X-intercept” means the point at which the plot of the calibration function crosses the x-axis.
NR 149.03 History
History: CR 17-046: cr. Register February 2021 No. 782, eff. 6-29-21; corection in (38), (48), (60) made under s. 35.17, Stats., Register February 2021 No. 782. NR 149.05(1)(1)
All laboratories submitting data to the department for a covered program or generating data to determine compliance with a covered program, shall be accredited under this chapter for the fields of accreditation corresponding to the submitted or generated data, unless this chapter or a covered program exempts a test from requiring accreditation.
The department may not accept data from a laboratory that is not properly accredited under this chapter, except as provided in s. NR 149.11
The department may initiate enforcement action against a laboratory which maintains accreditations under this chapter but performs testing for analytes for which it does not hold the appropriate accreditation and for which the department offers accreditation when that data will be reported to the department.
A laboratory may not transfer its accreditation to any other entity unless the department expressly approves the transfer by the process specified in s. NR 149.14 (1) (a)
NR 149.05 History
History: CR 17-046: cr. Register February 2021 No. 782, eff. 6-29-21. NR 149.06(1)(1)
The department shall issue certificates to accredited laboratories indicating or referring to the specific fields of accreditation for which laboratories have been granted accreditation. The department shall issue certificates annually, whenever the fields for which a laboratory is accredited change, and when a laboratory relocates or changes its name.
The department shall issue certificates to the owner or legally responsible party of a laboratory.
The department may not issue certificates to anyone who is not the owner or legally responsible party of a laboratory.
The department may indicate in a certificate that a laboratory is managed by an outside contractor.
Certificates are the property of the department and shall be returned to the department upon request.
A laboratory may not alter or modify certificates issued by the department. A laboratory that alters or modifies a certificate, or that misrepresents the fields of accreditation contained or referenced in a certificate, may be subject to revocation of all its accreditations.
NR 149.06 History
History: CR 17-046: cr. Register February 2021 No. 782, eff. 6-29-21; renum. (2) (intro.), (a) to (2) (ag), (ar) under s. 13.92 (4) (b) 1., Stats., Register February 2021 No. 782. NR 149.08
Acceptance of other accreditations, licenses, or approvals. NR 149.08(1)(1)
Agriculture, trade, and consumer protection agreement.
The department shall accept the accreditation, licensure, or approval by the department of agriculture, trade, and consumer protection for microbiological testing performed by a laboratory submitting or generating data for a covered program.
Laboratories accredited, licensed, or approved by other governments. NR 149.08(2)(a)
The department may negotiate with and attempt to enter into agreements with federal agencies and agencies of other states to reciprocally accept accreditations of laboratories under this chapter.
The department may accept the accreditation, licensure, or approval of a laboratory by another state or an agency of the federal government if the standards used for the qualification of a laboratory are substantially equivalent to those established in this chapter.
The department may not accept the accreditation, licensure, or approval of a laboratory by another state or an agency of the federal government, unless that state or federal agency accepts laboratories accredited under this chapter.
The department may enter into agreements with private not-for-profit organizations to accept accreditation of laboratories under this chapter.
The department may accept the accreditation, licensure, or approval of a laboratory by a private not-for-profit organization if the organization's standards used for the qualification of a laboratory are substantially equivalent to those established in this chapter.
NR 149.08 History
History: CR 17-046: cr. Register February 2021 No. 782, eff. 6-29-21.