№ files_lp_3_process_7_044897
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Checklist for laboratory practices and standard operating procedures related to the Chemical Oxygen Demand (COD) closed reflux colorimetric method used for wastewater analysis in compliance with North Carolina regulations.
Note:
Year
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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
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
Note:
Year
Subject:
Wastewater and Groundwater Laboratory Certification
Document Type:
Checklist
Organization / Institution:
NC DEQ/DWR
Target Audience:
Laboratory Analysts, Environmental Testing Personnel
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
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
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
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
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
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
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
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
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
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
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
Note:
Year
Subject:
Wastewater and Groundwater Laboratory Certification
Document Type:
Checklist
Organization / Institution:
NC DEQ/DWR
Target Audience:
Laboratory Analysts, Environmental Testing Personnel