Forms and Inspection Checklists

Applications

Application TypeDocument LinkRevision

Initial Application for Field Laboratories

Click here for guidance in completing the initial application.

WORD2024/07
Initial Application for Non-Field LaboratoriesWORD2026/02
Amendment Application for any laboratory typeWORD2024/09

Forms

The following forms are provided for reference and use. 

Form TypePurpose
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 SurveyA 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) FormA 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 NotificationExample 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 TitleRevision DateDocument Links
Field Laboratory Entrance Walkthrough7/2023WORD
   

 

Non-Metal Inorganic        
Checklist        
Title		TechnologyMethodRevision        
Date		Document Links
pHElectrometricSM 4500 H+ B - 20212024/07WORD
pHElectrometricSW-846 9045 D2025/02WORD
ConductivityWheatstone BridgeSM 2510 B - 2021 and EPA 120.1, Rev. 19822024/07WORD
Total Residual ChlorineColorimetric, DPDSM 4500 Cl G - 20112023/11WORD
Settleable ResidueVolumetricSM 2540 F - 20152023/08WORD
SalinityConductivitySM 2520 B - 20112025/12WORD
TemperatureThermometricSM 2550 B - 20102023/11WORD
Dissolved OxygenMembrane ElectrodeSM 4500 O G-2021, ASTM D888-18 (B)2025/11WORD
Dissolved OxygenOptical/Luminescent 

SM 4500 O H-2021, Hach 10360 Rev. 1.2, 10/2011,

ASTM D888-18 (C), In Situ 1002-8-2009

2025/11WORD
ChlorideTitrationSM 4500 Cl- B - 20212025/02WORD
Total Organic CarbonPersulfate-UV or Heated PersulfateSM 5310 C - 20142023/05WORD
Total Organic CarbonHigh-Temperature CombustionSM 5310 B - 20142023/09WORD
BOD and CBOD (5-day)DO Depletion and LDO SM 5210 B - 20162023/08WORD
Ammonia NitrogenISESM 4500 NH3 D-20212024/02WORD
Ammonia NitrogenSpectrophotometricEPA Method 350.1, Rev. 2.0, 1993 (Hach Method 10205 TNT)2021/03WORD
Ammonia NitrogenAutomatic phenateEPA Method 350.1, Rev. 2.0, 19932023/04WORD
Ammonia NitrogenTitrationSM 4500 NH3 C-20212024/07WORD
Suspended Residue GravimetricSM 2540 D - 20202024/05WORD
Dissolved ResidueGravimetricSM 2540 C - 2020 2024/05WORD
Total ResidueGravimetricSM 2540 B - 20202024/05WORD
Ignitability of SolidsClosed-Cup Tester SW-846 10302020/01WORD
Paint Filter LiquidGravimetricSW-846 9095B2016/06WORD
Nitrite NitrogenColorimetricSM 4500-NO2 B-20112020/01WORD
Nitrite Nitrogen

Automated -

Cadmium Reduction Bypassed

EPA 353.2, Rev. 2, 19932022/02WORD
TurbidityNephelometricSM 2130 B-20202024/09WORD
Oil & GreaseGravimetric, HEMEPA 1664 Rev. B2023/07WORD
Total PhosphorusAscorbic Acid, AutomatedEPA 365.1, Rev. 2.0, 19932020/01WORD
Total PhosphorusAscorbic Acid, ManualSM 4500 P E -20212024/05WORD
Total PhosphorusAscorbic Acid, AutomatedSM 4500 P F -20212024/05WORD
HardnessTitrationSM 2340 C -20212024/02WORD
CODColorimetricSM 5220 D-20112024/11WORD
CODColorimetricHach 8000, Rev. 1979 (method here)2023/03WORD
AlkalinityTitrationSM 2320 B-20212024/05WORD
Anions Ion ChromatographyEPA 300.0, Rev. 2.1, 19932020/01WORD
AnionsIon ChromatographySW846 9056A2023/05WORD
Color (PC)Visual ComparisonSM 2120 B-20212024/12WORD
Nitrogen, Total Kjeldahl Digestion with SpectrophotometricHach 10242 Rev 1.22024/11WORD
Nitrogen, Total Kjeldahl

Block Digestion and Semi-Automated

Colorimetry 

EPA 351.2, Rev. 2.0, 19932022/02WORD
Nitrogen, Total KjeldahlMacro Digestion and TitrationSM 4500 Norg B (NH3 C)-20112022/11WORD
Cyanide, TotalManual SpectrophotometricSM 4500 CN- E-20212024/10WORD
Nitrate + NitriteCadmium Reduction, ManualSM 4500 NO3- E-20192025/11WORD
Nitrate + NitriteCadmium Reduction, AutomatedSM 4500 NO3- F-20192025/11WORD
Nitrate + Nitrite Cadmium Reduction, AutomatedEPA 353.2, Rev. 2.0, 19932022/11WORD
Nitrate + NitriteSpectrophotometric (2,6-dimethylphenol)Hach 102062024/09WORD
Nitrate NitrogenSpectrophotometric (2,6-dimethylphenol)Hach 102062024/09WORD
PhenolManual ColorimetricEPA 420.1, Rev. 1978 2025/01WORD
Vector Attraction Reduction Option 1: Reduction in Volatile Solids Content2022/05WORD
Vector Attraction Reduction Option 4: Specific Oxygen Uptake Rate (SOUR)2025/01WORD
Vector Attraction Reduction Option 5: Aerobic Processes at Greater Than 40C2022/01WORD
Vector Attraction Reduction Option 6: Addition of Alkali2023/06WORD
Vector Attraction Reduction Option 7: Moisture Reduction of Sewage Sludge Containing No Unstabilized Solids2023/04WORD
Vector Attraction Reduction Option 8: Moisture Reduction of Sewage Sludge Containing Unstabilized Solids2023/05WORD
Chlorophyll a SpectrophotometricSM 10150 B-2022 2025/08WORD
Chlorophyll aFluorometricSM 10150 C-20222025/08WORD

 

Bacteriological Checklist TitleTechnologyMethodRevision        
Date		Document Links
Thermotolerant (Fecal) ColiformMPNColilert® 182023/07WORD
Thermotolerant (Fecal) ColiformMembrane FilterSM 9222 D -20152023/01WORD
Thermotolerant (Fecal) Coliform for Sludge (503)MPNSM 9221 E - 20142021/09WORD
Total Coliform Membrane FilterSM 9222 B-20152023/02WORD
Enterococci MPNEnterolert® IDEXX2020/01WORD
E. ColiMPNColilert® 182022/03WORD
E. ColiMPNColilert®(24)2022/03WORD

 

Metals Checklist TitleTechnologyMethodRevision DateDocument Links
MercuryCVAAEPA 245.1, Rev. 3.0 (1994)2020/01WORD
MercuryCVAASW-846 7470A2020/01WORD
Hexavalent ChromiumColorimetricSW-846 7196A2020/01WORD
Hexavalent ChromiumColorimetricSW-846 7196A/3060A (Non-Aqueous)2020/01WORD
Hexavalent ChromiumColorimetricSM 3500 Cr- B-2020 (Aqueous)2024/06WORD
Metals ICP-MSEPA 200.8, Rev. 5.4 (1994) (Aqueous & Non-Aqueous)2022/03WORD
MetalsICP-AESEPA 200.7, Rev. 4.4 (1994) (Aqueous & Non-Aqueous)2022/03WORD

 

Organics Checklist TitleTechnologyMethodRevision DateDocument Links
Total Petroleum Hydrocarbons - GROGCSW846- 8015C (Aqueous & Non-Aqueous)2021/02WORD
Purgeable OrganicsGC/MSSW-846 8260D (Aqueous & Non-Aqueous)2022/10WORD
Purgeable OrganicsGC/MSSM 6200 B-2020 (Aqueous)2026/01WORD
Extractable Petroleum Hydrocarbon MADEP EPH Dec 2019, Rev. 2.1 (Aqueous & Non-Aqueous)2025/10WORD

 

Additional checklists will be added as they are reviewed and finalized.

 

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This page was last modified on 02/20/2026