15A NCAC 18E .0104 – Abbreviations

For the purpose of this Subchapter, the following abbreviations refer to:

(1) ABS: Acrylonitrile-Butadiene-Styrene;
(2) ACEC: Apparent Cation Exchange Capacity;
(3) ANSI: American National Standards Institute;
(4) AOWE: Authorized On-Site Wastewater Evaluator;
(5) ASTM: American Society for Testing and Materials;
(6) ATO: Authorization to Operate;
(7) BOD₅: Five Day Biochemical Oxygen Demand;
(8) CA: Construction Authorization;
(9) CBOD: Carbonaceous Biochemical Oxygen Demand;
(10) cmol/kg: centimoles per kilogram;
(11) CFR: Code of Federal Regulations;
(12) CSA: Canadian Standards Association;
(13) DDF: Design Daily Flow;
(14) DEQ: Department of Environmental Quality;
(15) DIP: Ductile Iron Pipe;
(16) DO: Dissolved Oxygen;
(17) DOT: Department of Transportation;
(18) DSE: Domestic Strength Effluent;
(19) EOP: Engineered Option Permit;
(20) FE: Iron;
(21) FOG: Fats, Oil, and Grease;
(22) gal: gallons
(23) gpd: Gallons per Day;
(24) gpd/ft²: Gallons per Day per Square Foot;
(25) HSE: High Strength Effluent;
(26) IAPMO: International Association of Plumbing and Mechanical Officials;
(27) IP: Improvement Permit;
(28) IPWW: Industrial Process Wastewater;
(29) LC: Limiting Condition;
(30) LDP: Large Diameter Pipe;
(31) LG: Licensed Geologist;
(32) LHD: Local Health Department;
(33) LPP: Low Pressure Pipe;
(34) LSS: Licensed Soil Scientist;
(35) LTAR: Long Term Acceptance Rate;
(36) meq/100 g: Milliequivalents per 100 grams;
(37) mg/L: Milligrams/Liter;
(38) NEMA: National Electrical Manufacturers Association;
(39) NH₃: Total Ammonia Nitrogen;
(40) NOI: Notice of Intent to Construct;
(41) NOV: Notice of Violation;
(42) NSF: NSF International;
(43) OP: Operation Permit;
(44) PE: Professional Engineer;
(45) PIA: Provisional, Innovative, and Accepted;
(46) PPBPS: Prefabricated Permeable Block Panel System;
(47) psi: Pounds per Square Inch;
(48) PVC: Polyvinyl Chloride;
(49) RCW: Reclaimed Water;
(50) RV: Recreational Vehicle;
(51) RWTS: Residential Wastewater Treatment System;
(52) SCO: State Climate Office of North Carolina;
(53) SDR: Standard Dimension Ratio;
(54) SPI: Standard Precipitation Index;
(55) STEP: Septic Tank Effluent Pump;
(56) SWC: Soil Wetness Condition;
(57) TKN: Total Kjeldahl Nitrogen;
(58) TL: Trench Length;
(59) TN: Total Nitrogen;
(60) TSS: Total Suspended Solids;
(61) TW: Trench Width;
(62) USDA-NRCS: United States Department of Agriculture – Natural Resources Conservation Service;
(63) VIP: Visual Inspection Protocol; and
(64) WS: Water Supply Class.

History Note: Authority G.S. 130A-335(e);
Eff. January 1, 2024.