Wisconsin Administrative Code
Department of Natural Resources
NR 100-199 - Environmental Protection General
Chapter NR 149 - Laboratory Accreditation
Subchapter III - Program Structure
Section NR 149.13 - Fields of accreditation: certification and registration

Universal Citation: WI Admin Code ยง NR 149.13

Current through August 26, 2024

(1) GENERAL. The department shall certify and register laboratories by specific fields of accreditation. Accreditation shall be by certification under s. 299.11(7), Stats., or registration under s. 299.11(8), Stats. Fields of accreditation consist of 3 tiers describing the analytical capability of laboratories.

(2) TIER 1 - MATRIX. The first tier of accreditation is comprised of aqueous, non-aqueous, and drinking water matrices.

Note: Biosolids and sludges are a non-aqueous matrix for accreditation purposes.

(3) TIER 2 - TECHNOLOGY OR METHOD.

(ag) The second tier of accreditation is comprised of analytical technologies for the aqueous and non-aqueous matrices or methods for the drinking water matrix.

(ar) The department may certify or register laboratories that analyze aqueous and non-aqueous matrices for the analytical technologies contained in this section, Table 1.

(b) The department shall include any associated sample preparation techniques, such as digestions, distillations, extractions, cleanups, concentrations, and dilutions as part of the certification or registration for a given field of accreditation.

(c) Laboratories may employ multiple methods of analysis for a given analytical technology under the same field of accreditation.

Table 1 - Analytical Technologies for Aqueous and Non-Aqueous Matrices

Number

Analytical Technology

General Chemistry

1.

Oxygen Demand Assays (BOD or cBOD)1

2.

Colorimetric or Turbidimetric

3.

Electrometric Assays (i.e. ion-selective electrode)

4.

Gravimetric Assays - Residue (solids)

5.

Extraction/Gravimetric Assays - Oil & Grease as Hexane Extractable Materials (HEM)1

6.

Titrimetric or Potentiometric Titration Assays

7.

Flow Injection-Gas Diffusion-Amperometry1

8.

Nondispersive Infrared (NDIR) or Microcoulometry

9.

Ion Chromatography (IC)

Metals

10.

Flame Atomic Absorption Spectrophotometry (FLAA)

11.

Flame Photometry Spectrophotometry (FP)

12.

Gaseous Hydride Atomic Absorption Spectrophotometry (GHAA)

13.

Graphite Furnace Atomic Absorption Spectrophotometry (GFAA)

14.

Cold Vapor Atomic Absorption Spectrophotometry (CVAA)

15.

Cold Vapor Atomic Fluorescence Spectrophotometry (CVAFS)

16.

Thermal Decomposition Atomic Absorption Spectrophotometry (TDAA)

17.

Inductively Coupled Plasma Emission Spectrophotometry (ICP)

18.

Inductively Coupled Plasma-Mass Spectrometry (ICP/MS)

Organics

19.

Gas Chromatography (GC)

20.

Gas Chromatography-Mass Spectrometry (GC/MS)

21.

Liquid Chromatography (LC)

22.

Liquid Chromatography-Mass Spectrometry (LC/MS)

23.

High Resolution Gas Chromatography-Mass Spectrometry (HRGC/MS)

Other

24.

Hazardous Waste Characteristics2

25.

Solid Waste Leaching Procedures2

26.

Whole Effluent Toxicity Assays1

27.

Other3
1. Accreditation for this technology is only available for the aqueous matrix - Tier 1.

2. Accreditation for this technology is only available for the non-aqueous matrix - Tier 1.

3. The department may offer accreditation in other analytical technologies if the technology is approved by the EPA or is approved by the department as an emerging technology.

(d) The department may certify laboratories analyzing drinking water samples using methods promulgated or approved by the EPA under 40 CFR Part 141 .

Note: Links to 40 CFR Part 141 can be found on the Wisconsin department of natural resources laboratory accreditation program website.

(4) TIER 3 - ANALYTES OR ANALYTE GROUP.

(ag) The third tier of the accreditation is comprised of analytes or analyte groups. The department may certify or register laboratories by analyte groups if it improves the efficiency of administering accreditations.

(ar) The analytes and analyte groups available for accreditation under this subsection are contained in Appendix I.

(b) The department, upon consultation with the council, may offer accreditation for additional analytes or analyte groups that are not contained in Appendix I upon request by the manager of a covered program or when the EPA requires the additional analytes or analyte group analysis.

(c) For aqueous and non-aqueous matrices, the analytes and analyte groups are organized into classes. Laboratories analyzing aqueous and non-aqueous matrices may be accredited for analytes and analyte groups belonging to the analytical classes contained in this section. Table 2.

Table 2 - Analytical Classes for Aqueous and Non-Aqueous Matrices

Number

Analytical Classes

1.

General Chemistry

2.

Metals

3.

Volatile Organic Compounds

4.

Base, Neutral, and Acid Extractable Semivolatile Compounds, including:

a. Aldehydes and Ketones

b. Benzidines

c. Chlorinated Hydrocarbons

d. Explosive Residues

e. Haloethers

f. Nitroaromatics

g. Nitrosamines

h. Non-halogenated Organics

i. Phenols

j. Phthalates

k. Polynuclear Aromatic Hydrocarbons

5.

Polynuclear Aromatic Hydrocarbons

6.

Pesticides and Metabolites, including:

a. Acid

b. Nitrogen

c. Carbamate

d. Organochlorine

e. Organophosphorus

f. Triazine

g. Other

7.

Persistent Organic Pollutants

8.

Hazardous Waste Characteristics1

9.

Leaching Procedures1,2

10.

Solvent Scans

11.

Toxicity, Acute

12.

Toxicity, Chronic
1. Hazardous Waste Characteristics and Leaching Procedures are only offered for non-aqueous matrices - Tier 1.

2. Leaching Procedures require that laboratories also maintain accreditation for any analyte to be determined in the resulting leachate in the non-aqueous matrix.

(d) For the drinking water matrix, the analytes and analyte ing water may be certified for analytes or analyte groups belong-groups are organized into classes. Laboratories analyzing drinking to the analytical classes contained in this section, Table 3.

Table 3 - Analytical Classes for the Drinking Water Matrix

Number

1.

Analytical Classes

Disinfection By-products

2.

Primary Inorganic Contaminants (Non-Metals)

3.

Primary Inorganic Contaminants (Metals)

4.

Secondary Contaminants (Non-Metals)

5.

Secondary Contaminants (Metals)

6.

Synthetic Organic Contaminants (SOC) - Dioxin

7.

Synthetic Organic Contaminants (SOC) - Organochlorine Pesticides

8.

Synthetic Organic Contaminants (SOC) - Nitrogen-Phosphorus Pesticides

9.

Synthetic Organic Contaminants (SOC) - Herbicides

10.

Synthetic Organic Contaminants (SOC) - Miscellaneous

11.

Volatile Organic Compounds (VOC)

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