Forms and Inspection Checklists
Applications
| Application Type | Document Link | Revision |
|---|---|---|
Initial Application for Field Laboratories Click here for guidance in completing the initial application. | 7/1/2024 | |
| Initial Application for non-Field Laboratories | 9/1/2024 | |
| Amendment Application for any laboratory type | 9/1/2024 |
Forms
The following forms are provided for reference and use.
| Form Type | Purpose |
|---|---|
| Laboratory Certification Program Evaluation Form | A form used to evaluate various performance areas within the NC WW/GW LC program including auditor performance, inspection reports and program performance. [Extended Format] |
| Laboratory Certification Program Short Survey | A short survey to provide feedback on the services provided by the NC WW/GW Laboratory Certification program. [Short Format] |
| Notice of Finding for Immediate Response (NOFIR) Form | A form used by NC WW/GW LC auditors during on-site inspections when a Finding is judged to be severe to the extent that immediate correction or suspension of the action is required. |
| Sample Non-conformance Notification | Example of a form that can be used when laboratories submit notification to the NC WW/GW LC program of samples analyzed that do not meet sample collection, preservation or holding time requirements. |
Checklists
This section contains copies of the parameter/method/technology checklists used by NC WW/GW Laboratory Certification auditors during the on-site inspections of laboratories. They include comments, technical tips and the applicable literature references.
| General Checklist Title | Revision Date | Document Links |
|---|---|---|
| Inspection Entrance Interview Checklist | 08/28/2008 | |
| Sample Receipt Checklist | 06/19/2015 | |
| Quality Assurance Systems Checklist | 05/19/2011 | |
| Exit Interview Summary Checklist | 12/30/2009 | |
| Field Laboratory Entrance Walkthrough | 7/2023 |
| Non-Metal Inorganic Checklist Title | Technology | Method | Revision Date | Document Links |
|---|---|---|---|---|
| pH | Electrometric | SM 4500 H+ B - 2021 | 07/2024 | |
| pH | Electrometric | SW-846 9045 D | 2/2025 | |
| Conductivity | Wheatstone Bridge | SM 2510 B - 2021 and EPA 120.1, Rev. 1982 | 07/2024 | |
| Total Residual Chlorine | Colorimetric, DPD | SM 4500 Cl G - 2011 | 11/2023 | |
| Settleable Residue | Volumetric | SM 2540 F - 2015 | 8/2023 | |
| Salinity | Conductivity | SM 2520 B - 2011 | 11/2023 | |
| Temperature | Thermometric | SM 2550 B - 2010 | 11/2023 | |
| Dissolved Oxygen | Membrane Electrode | SM 4500 O G-2016, ASTM D888-12 (B) | 11/2023 | |
| Dissolved Oxygen | Optical/Luminescent | SM 4500 O H-2016, Hach 10360 Rev. 1.2, 10/2011, ASTM D888-12 (C), In Situ 1002-8-2009 | 11/2023 | |
| Chloride | Titration | SM 4500 Cl- B - 2021 | 2/2025 | |
| Total Organic Carbon | Persulfate-UV or Heated Persulfate | SM 5310 C - 2014 | 5/2023 | |
| Total Organic Carbon | High-Temperature Combustion | SM 5310 B - 2014 | 9/2023 | |
| BOD and CBOD (5-day) | DO Depletion and LDO | SM 5210 B - 2016 | 8/2023 | |
| Ammonia Nitrogen | ISE | SM 4500 NH3 D-2021 | 2/2024 | |
| Ammonia Nitrogen | Spectrophotometric | EPA Method 350.1, Rev. 2.0, 1993 (Hach Method 10205 TNT) | 3/2021 | |
| Ammonia Nitrogen | Automatic phenate | EPA Method 350.1, Rev. 2.0, 1993 | 4/2023 | |
| Ammonia Nitrogen | Titration | SM 4500 NH3 C-2021 | 07/2024 | |
| Suspended Residue | Gravimetric | SM 2540 D - 2020 | 5/2024 | |
| Dissolved Residue | Gravimetric | SM 2540 C - 2020 | 5/2024 | |
| Total Residue | Gravimetric | SM 2540 B - 2020 | 5/2024 | |
| Ignitability of Solids | Closed-Cup Tester | SW-846 1030 | 1/2020 | |
| Paint Filter Liquid | Gravimetric | SW-846 9095B | 6/2016 | |
| Nitrite Nitrogen | Colorimetric | SM 4500-NO2 B-2011 | 1/2020 | |
| Nitrite Nitrogen | Automated - Cadmium Reduction Bypassed | EPA 353.2, Rev. 2, 1993 | 2/2022 | |
| Turbidity | Nephelometric | SM 2130 B-2020 | 9/2024 | |
| Oil & Grease | Gravimetric, HEM | EPA 1664 Rev.B | 7/2023 | |
| Total Phosphorus | Ascorbic Acid, Automated | EPA 365.1, Rev. 2.0, 1993 | 1/2020 | |
| Total Phosphorus | Ascorbic Acid, Manual | SM 4500 P E -2021 | 5/2024 | |
| Total Phosphorus | Ascorbic Acid, Automated | SM 4500 P F -2021 | 5/2024 | |
| Hardness | Titration | SM 2340 C -2021 | 2/2024 | |
| COD | Colorimetric | SM 5220 D-2011 | 11/2024 | |
| COD | Colorimetric | Hach 8000, Rev. 1979 (method here) | 3/27/23 | |
| Alkalinity | Titration | SM 2320 B-2021 | 5/2024 | |
| Anions | Ion Chromatography | EPA 300.0, Rev. 2.1, 1993 | 1/2020 | |
| Anions | Ion Chromatography | SW846 9056A | 5/2023 | |
| Color (PC) | Visual Comparison | SM 2120 B-2021 | 12/2024 | |
| Nitrogen, Total Kjeldahl | Digestion with Spectrophotometric | Hach 10242 Rev 1.2 | 11/2024 | |
| Nitrogen, Total Kjeldahl | Block Digestion and Semi-Automated Colorimetry | EPA 351.2, Rev. 2.0, 1993 | 2/2022 | |
| Nitrogen, Total Kjeldahl | Macro Digestion and Titration | SM 4500 Norg B (NH3 C)-2011 | 11/16/2022 | |
| Cyanide, Total | Manual Spectrophotometric | SM 4500 CN- E-2021 | 10/2024 | |
| Nitrate + Nitrite | Cadmium Reduction, Manual | SM 4500 NO3- E-2019 | 06/2024 | |
| Nitrate + Nitrite | Cadmium Reduction, Automated | SM 4500 NO3- F-2016 | 1/2022 | |
| Nitrate + Nitrite | Cadmium Reduction, Automated | EPA 353.2, Rev. 2.0, 1993 | 11/2022 | |
| Nitrate + Nitrite | Spectrophotometric (2,6-dimethylphenol) | Hach 10206 | 9/2024 | |
| Nitrate Nitrogen | Spectrophotometric (2,6-dimethylphenol) | Hach 10206 | 9/2024 | |
| Phenol | Manual Colorimetric | EPA 420.1, Rev. 1978 | 1/2025 | |
| Vector Attraction Reduction | Option 1: Reduction in Volatile Solids Content | 5/2022 | ||
| Vector Attraction Reduction | Option 4: Specific Oxygen Uptake Rate (SOUR) | 1/2025 | ||
| Vector Attraction Reduction | Option 5: Aerobic Processes at Greater Than 40C | 1/2022 | ||
| Vector Attraction Reduction | Option 6: Addition of Alkali | 6/2023 | ||
| Vector Attraction Reduction | Option 7: Moisture Reduction of Sewage Sludge Containing No Unstabilized Solids | 4/2023 | ||
| Vector Attraction Reduction | Option 8: Moisture Reduction of Sewage Sludge Containing Unstabilized Solids | 5/2023 |
| Bacteriological Checklist Title | Technology | Method | Revision Date | Document Links |
|---|---|---|---|---|
| Thermotolerant (Fecal) Coliform | MPN | Colilert® 18 | 7/2023 | |
| Thermotolerant (Fecal) Coliform | Membrane Filter | SM 9222 D -2015 | 1/2023 | |
| Thermotolerant (Fecal) Coliform for Sludge (503) | MPN | SM 9221 E - 2014 | 9/2021 | |
| Total Coliform | Membrane Filter | SM 9222 B-2015 | 2/2023 | |
| Enterococci | MPN | Enterolert® IDEXX | 1/2020 | |
| E. Coli | MPN | Colilert® 18 | 3/2022 | |
| E. Coli | MPN | Colilert®(24) | 3/2022 |
| Metals Checklist Title | Technology | Method | Revision Date | Document Links |
|---|---|---|---|---|
| Mercury | CVAA | EPA 245.1, Rev. 3.0 (1994) | 01/2020 | |
| Mercury | CVAA | SW-846 7470A | 01/2020 | |
| Hexavalent Chromium | Colorimetric | SW-846 7196A | 01/2020 | |
| Hexavalent Chromium | Colorimetric | SW-846 7196A/3060A (Non-Aqueous) | 01/2020 | |
| Hexavalent Chromium | Colorimetric | SM 3500 Cr- B-2020 (Aqueous) | 06/2024 | |
| Metals | ICP-MS | EPA 200.8, Rev. 5.4 (1994) (Aqueous & Non-Aqueous) | 3/2022 | |
| Metals | ICP-AES | EPA 200.7, Rev. 4.4 (1994) (Aqueous & Non-Aqueous) | 3/2022 |
| Organics Checklist Title | Technology | Method | Revision Date | Document Links |
|---|---|---|---|---|
| Total Petroleum Hydrocarbons - GRO | GC | SW846- 8015C (Aqueous & Non-Aqueous) | 2/18/2021 | |
| Purgeable Organics | GC/MS | SW-846 8260D (Aqueous & Non-Aqueous) | 10/04/2022 |
Additional checklists will be added as they are reviewed and finalized.
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This page was last modified on 03/12/2025