NPDES Guidance
Many of the Division's policies and guidance reference specific facilities or situations. Below are some permitting guidance documents to aid the NPDES permit writers in policy and guidance interpretation. These relate to NPDES permit parameters and permitting guidance for discharger groups.
GENERAL PERMITTING GUIDANCE
Engineering Alternatives Analysis
NC Model Mercury Minimization Plan
Reduction of Monitoring Frequencies for Exceptional Performance
Mixing Zones
Swamp Waters
Zero-Flow Streams
Trout Waters
Planning For An Expansion: A Guidance Document for Municipalities
POLLUTANT SPECIFIC PERMITTING GUIDANCE
Ammonia Nitrogen
Toxicity Testing
Copper & Zinc Action Levels Policy
Fecal Coliform
Total Residual Chlorine
Total Residual Chlorine Compliance Level
Total Metals
Mercury:
List of facilities required to perform EPA method 1631
EPA method 1631 notification letter
BASIN SPECIFIC PERMITTING GUIDANCE
Goose Creek
South Fork Catawba River Basin Color
FACILITY SPECIFIC PERMITTING GUIDANCE
Water Treatment Plant (WTP) Strategy
Assessment & Recommendations for WTP Permitting: Findings of the WTP Workgroup
Bulk Oil Terminals
Vehicle Pressure Washing
NPDES COMPLIANCE GUIDANCE
Significant Figures and Their Use on Discharge Monitoring Reports (DMRs)
DMR Calculations
NPDES Reporting Requirements
Wastewater Treatment Plant Annual Report Guidelines
Special Order by Consent (SOC) Guidance Document
NPDES Standard Conditions
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