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N.C. Department of Environment and Natural Resources

NC Department of Environment and Natural Resources
Water Quality - ATU Downloads

Water Quality

 

 

 

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Aquatic Toxicology Unit Downloads

Main Number 919-743-8401
 

 

Whole Effluent Toxicity (WET) Downloads

 

NC DWQ Whole Effluent Toxicity (WET) Guidance

DWQ WET Strategy
Changes to DWQ Water Treatment Plant (WTP) Strategy
Alternate Species Toxicity Testing
NPDES Reporting Requirements
Checklist for Municipal Application Requirements

 

NC DWQ Whole Effluent Toxicity (WET) Procedures

ATTENTION: REVISED ATU CRITERIA & PROCEDURES

Summary of ATU Revisions

Single Effluent Acute Pass/Fail
Ceriodaphnia Chronic Pass/Fail
Ceriodaphnia Chronic Phase II
Certification/Criteria Procedures Document

 

NC DWQ Whole Effluent Toxicity (WET) Enforcement Policy:

Revised Whole Effluent Toxicity Enforcement Policy - Sept. 1999
Ceriodaphnia Chronic Limit Language
Policy Revision Notification Letter (Effective Sept.1, 1999)
Action Level Policy (Effective Oct. 25, 2000)

 

NC DWQ Whole Effluent Toxicity (WET) Reporting Forms:

Understanding and Implementing Your Monitoring Requirement 
Report Form AT-1: NPDES acute LC50 and chronic pass/fail 
Report Form AT-2: NPDES acute pass/fail analysis 
Report Form AT-3: NPDES chronic ChV and pass/fail analysis 
Report Form AT-6: NPDES acute LC50 Limit for Mysidopsis bahia 
Parameter Codes for form MR-1 

 

 

Whole Effluent Toxicity Testing self monitoring summary 

 

 

Biological Laboratory Downloads

Certification Application
Certification Application
Certification Renewal Application
Certification Renewal Application
Laboratory Certification Rules
Guidance document for laboratories seeking and maintaining certification
DWQ Certified Laboratory List 

 

  Other Downloads

TRE Guidance Document
TRE Guidance for Municipal Wastewater Treatment Plants, EPA 833-B-99-002
Additional EPA TIE/TRE guidance (March, 2001)
Biocide Worksheet Form 101
Biocide Worksheet Form 101
Biocide Application Spreadsheet

 

 

Environmental Sciences Section 1621 Mail Service Center Raleigh, NC 27699-1621 919.743.8400

 
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