№ lp_2_1_25486
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Checklist form issued by a state laboratory certification authority outlining regulatory, procedural, preservation, calibration, and quality assurance requirements for determination of color in water samples under Standard Methods 2120 B-2021.
Organization: NC DEQ/DWR Wastewater/Groundwater Laboratory Certification Branch
Parameter: Color (PC)
Method: Standard Methods 2120 B-2021 (Aqueous)
Regulatory References: 15A NCAC 02H .0805; 40 CFR 136.3; 40 CFR 136.6
Document Type: Laboratory Certification Checklist
Subject: Quality assurance and procedural compliance for color analysis
Equipment: Nessler tubes; pH meter; 0.45 µm membrane or glass fiber filter and assembly; plastic or acid-washed amber glass bottles
Analysis Reagents: Organic-free water; Potassium chloroplatinate; Hydrochloric acid; Cobaltous chloride; Sodium hydroxide; Purchased stock standard
Preservation Requirements: ≤ 6 ºC; analysis within 48 hours; protection from light
Quality Control Requirements: pH meter calibration; buffer check ±0.1 S.U.; documentation of calibration and adjustments
Reporting Requirements: Results in whole numbers; pH documented at time of determination
Price: 8 / 10 USD
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Standard Operating Procedure for the Analysis of pH, Electrometric Method: SM 4500 H+ B-2021
Note: Effective Date
Supervisor Signature: ___________________
Date: __________
Supervisor Name (print): ________________________________
Year: 2021
Region / City: North Carolina
Topic: pH measurement, laboratory procedures
Document Type: Standard Operating Procedure
Organization / Institution: Wastewater/Groundwater Laboratory Certification Branch
Author: Not specified
Target Audience: Laboratory staff, environmental testing personnel
Period of Validity: Not specified
Approval Date: Not specified
Amendment Date: Not specified
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION BRANCH
Note: Year
Subject: Biochemical Oxygen Demand (BOD) Analysis
Document Type: Standard Operating Procedure
Organization / Institution: North Carolina Department of Environmental Quality (DEQ)
Target Audience: Laboratories conducting water quality analysis
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION
Year: 2011
Region / City: North Carolina
Topic: Laboratory certification, quality control
Document Type: Certification checklist
Organization / Institution: North Carolina Department of Environmental Quality (NC DEQ)
Author: NC DEQ / DWR
Target Audience: Laboratory personnel
Effective Date: 2011
Date of Revision: Not specified
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION
Note: Year
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION BRANCH
Note: Year
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION BRANCH
Note: Year
Subject: Wastewater and Groundwater Laboratory Certification
Document Type: Checklist
Organization / Institution: NC DEQ/DWR
Target Audience: Laboratory Analysts, Environmental Testing Personnel
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION BRANCH
Year: 2015
Region / City: North Carolina
Topic: Laboratory Certification
Document Type: Standard Operating Procedure
Organization / Institution: North Carolina Department of Environmental Quality (NC DEQ)
Author: NC DEQ / DWR
Target Audience: Laboratories performing wastewater and groundwater testing
Period of Validity: Indefinite (subject to review every 2 years)
Approval Date: Not specified
Date of Changes: Not specified
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION BRANCH
Year: 2021
Region / City: North Carolina
Subject: Total Phosphorus Analysis
Document Type: Standard Operating Procedure (SOP)
Organization: North Carolina Department of Environmental Quality (NC DEQ)
Author: NC DEQ/DWR
Target Audience: Laboratory personnel, analysts
Validity Period: N/A
Approval Date: N/A
Date of Amendments: N/A
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION BRANCH
Note: Year
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION BRANCH
Year: 2026
Region / City: North Carolina
Topic: Water Quality Analysis, Fecal Coliform Testing
Document Type: Standard Operating Procedure (SOP)
Organization: North Carolina Department of Environmental Quality
Author: NC DEQ/DWR Laboratory Certification Branch
Target Audience: Laboratory Technicians, Water Quality Analysts
Effective Period: Ongoing
Approval Date: Not specified
Revision Date: Not specified
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION CHECKLIST FOR TOTAL ORGANIC CARBON ANALYSIS
Note: Year
Subject: Water quality, laboratory analysis
Document Type: Certification checklist
Organization / Institution: North Carolina Department of Environmental Quality (NC DEQ)
Target Audience: Laboratory analysts and environmental quality professionals
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION CHECKLIST
Year: 2007
Region / City: North Carolina
Theme: Laboratory Certification, Wastewater, Groundwater
Document Type: Checklist
Agency: North Carolina Department of Environmental Quality (NC DEQ)
Author: NC DEQ/DWR Laboratory Certification Branch
Target Audience: Laboratory Analysts, Environmental Testing Personnel
Period of Validity: Ongoing review every 2 years
Approval Date: November 7, 2007
Modification Date: Not specified
NC DENR/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION
Note: Year
Subject: Wastewater and Groundwater Laboratory Certification
Document Type: Certification Checklist
Organization / Institution: North Carolina Department of Environmental Quality (NCDEQ)
Target Audience: Laboratory Analysts
NC DEQ/DWR Wastewater/Groundwater Laboratory Certification Checklist for SW-846 Method 8260D
Organization: NC DEQ/DWR Wastewater/Groundwater Laboratory Certification Branch
Document type: Laboratory certification checklist
Analytical parameter: Purgeable organics
Analytical method: SW-846 Method 8260D
Sample types: Aqueous and non-aqueous samples
Regulatory references: 15A NCAC 02H .0805; SW-846 Chapter Four; SW-846 Method 5035
Quality requirements: QA/QC minimum benchmarks per NC WW/GW LCB policy
Intended use: Evaluation of laboratory practices and SOP compliance
Geographic scope: North Carolina
Technical focus: Sample preservation, storage, holding times, and analytical equipment
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION BRANCH
Note: Year
NC DEQ/DWR WASTEWATER/GROUNDWATER LABORATORY CERTIFICATION BRANCH
Year: 2014
Region / City: North Carolina
Theme: Laboratory Certification, Wastewater, Groundwater
Document Type: Certification Checklist
Organization / Institution: NC DEQ/DWR
Author: Not specified
Target Audience: Laboratory analysts, laboratory certification staff
Effective Period: Ongoing, review every 2 years
Approval Date: Not specified
Revision Date: Not specified
Topics: 2120 B-2021 WASTEWATERGROUNDWATER