15A NCAC 02B .0406 TECHNOLOGY BASED EFFLUENT LIMITATIONS
(a) Municipal (POTW) Wastewaters and Other Similar Discharges
(1) Applicability. This Paragraph is applicable to all municipal wastewater treatment discharges and all discharges consisting primarily of domestic sewage. In addition to the limits contained in this Paragraph, limits applicable to industrial categories contained in Paragraph (b) of this Rule shall be applicable to any municipality if influent waste discharges from industries in any single category account for 10 or more percent of its average daily wastewater flow or the industrial discharges significantly impact the municipal system or its effluent discharge.
(2) Effluent limitations, except for waste stabilization ponds subject to Subparagraph (3) of this Paragraph, shall include the following:
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SECONDARY |
"BPWTT" |
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Effluent Characteristic |
Monthly Avg. |
Weekly Avg. Max. |
Avg. |
Max. |
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BOD(5) |
30 mg/l |
45 mg/l |
Reserved |
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TSS |
30 mg/l |
45 mg/l |
Reserved |
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Fecal Coliform |
(Effluent limitations for coliform bacteria and pH shall be imposed only if necessary to maintain compliance with applicable water quality standards.) |
Reserved |
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pH |
Reserved |
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(3) Effluent limitations for waste stabilization ponds shall include the following, provided that:
(A) Waste stabilization ponds are the sole process used for secondary treatment;
(B) The maximum facility design capacity is two million gallons per day or less; and
(C) Operation and maintenance data indicate that the requirements for TSS of Subparagraph (2) of this Paragraph cannot be achieved.
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|
SECONDARY |
"BPWTT" |
||
|
Effluent Characteristic |
Monthly Avg. |
Weekly Avg. Max. |
Avg. |
Max. |
|
BOD(5) |
30 mg/L |
45 mg/L |
Reserved |
|
|
TSS |
90 mg/L |
135 mg/L |
Reserved |
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Fecal Coliform |
(Effluent limitations for coliform bacteria and pH shall be imposed only if necessary to maintain compliance with applicable water quality standards.) |
Reserved |
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pH |
Reserved |
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(b) Industrial Waste Discharges.
(1) Applicability. This Paragraph is applicable to industrial wastewater treatment discharges.
(2) Effluent limits for industrial waste discharges are set forth in regulations promulgated by the Environmental Protection Agency, including those in 40 CFR Chapter I, Subpart N – Effluent Guidelines and Standards, which are hereby incorporated by reference, including any subsequent amendments and editions. These regulations can be accessed free of charge at http://www.gpo.gov/fdsys/.
40 CFR Part 129 -- EPA Toxic Pollutant Effluent Standards
40 CFR Part 401 -- EPA General Provisions for Effluent Guidelines and Standards
40 CFR Part 405 -- EPA Effluent Guidelines and Standards for Dairy Products
40 CFR Part 406 -- EPA Effluent Guidelines and Standards for Grain Mills
40 CFR Part 407 -- EPA Effluent Guidelines and Standards for Canned and Preserved Fruits and Vegetables
40 CFR Part 408 -- EPA Effluent Guidelines and Standards for Canned and Preserved Seafood
40 CFR Part 409 -- EPA Effluent Guidelines and Standards for Sugar Processing
40 CFR Part 410 -- EPA Effluent Guidelines and Standards for Textiles
40 CFR Part 411 -- EPA Cement Manufacturing Effluent Guidelines and Standards
40 CFR Part 412 -- EPA Effluent Guidelines and Standards for Concentrated Animal Feeding Operations (CAFO)
40 CFR Part 413 -- EPA Effluent Guidelines and Standards for Electroplating
40 CFR Part 414 -- EPA Effluent Guidelines and Standards for Organic Chemicals
40 CFR Part 415 -- EPA Effluent Guidelines and Standards for Inorganic Chemicals
40 CFR Part 417 -- EPA Effluent Guidelines and Standards for Soaps and Detergents
40 CFR Part 418 -- EPA Effluent Guidelines and Standards for Fertilizer Manufacturing
40 CFR Part 419 -- EPA Effluent Guidelines and Standards for Petroleum Refining
40 CFR Part 420 -- EPA Effluent Guidelines and Standards for Iron and Steel Manufacturing
40 CFR Part 421 -- EPA Effluent Guidelines and Standards for Nonferrous Metals
40 CFR Part 422 -- EPA Phosphate Manufacturing Effluent Guidelines and Standards
40 CFR Part 423 -- EPA Effluent Guidelines and Standards for Steam Electric Power Generating
40 CFR Part 424 -- EPA Effluent Guidelines for Ferroalloy Manufacturing
40 CFR Part 425 -- EPA Effluent Guidelines and Standards for Leather Tanning and Finishing
40 CFR Part 426 -- EPA Effluent Guidelines and Standards for Glass Manufacturing
40 CFR Part 427 -- EPA Effluent Guidelines and Standards for Asbestos Manufacturing
40 CFR Part 428 -- EPA Effluent Guidelines for Rubber Processing
40 CFR Part 429 -- EPA Effluent Guidelines and Standards for Timber Products
40 CFR Part 430 -- EPA Effluent Guidelines and Standards for Pulp, Paper, and Paper Board
40 CFR Part 432 -- EPA Effluent Guidelines and Standards for Meat Products
40 CFR Part 433 -- EPA Effluent Guidelines and Standards for Metal Finishing
40 CFR Part 434 -- EPA Effluent Guidelines and Standards for Coal Mining
40 CFR Part 435 -- EPA Effluent Guidelines and Standards for Offshore Oil and Gas Extraction
40 CFR Part 436 -- EPA Effluent Guidelines and Standards for Mineral Mining and Processing
40 CFR Part 437 -- EPA Effluent Guidelines and Standards for Centralized Waste Treatment
40 CFR Part 438 -- EPA Effluent Guidelines and Standards for Metals Products and Machinery
40 CFR Part 439 -- EPA Effluent Guidelines and Standards for Pharmaceutical Manufacturing
40 CFR Part 440 -- EPA Effluent Guidelines and Standards for Ore Mining and Dressing
40 CFR Part 441 – EPA Effluent Limitations Guidelines and Standards for the Dental Category
40 CFR Part 442 -- EPA Effluent Guidelines and Standards for Transportation Equipment Cleaning
40 CFR Part 443 -- EPA Effluent Guidelines and Standards for Paving and Roofing Materials
40 CFR Part 444 -- EPA Effluent Guidelines and Standards for Waste Combustors
40 CFR Part 445 -- EPA Effluent Guidelines and Standards for Landfills
40 CFR Part 446 -- EPA Effluent Guidelines and Standards for Paint Formulating
40 CFR Part 447 -- EPA Effluent Guidelines and Standards for Ink Formulating
40 CFR Part 449 -- EPA Effluent Guidelines and Standards for Airport Deicing
40 CFR Part 450 -- EPA Effluent Guidelines and Standards for Construction and Development
40 CFR Part 451 -- EPA Effluent Guidelines and Standards for Concentrated Aquatic Animal Production (Aquaculture)
40 CFR Part 454 -- EPA Effluent Guidelines and Standards for Gum and Wood Chemicals Manufacturing
40 CFR Part 455 -- EPA Effluent Guidelines for Pesticide Chemicals Manufacturing
40 CFR Part 457 -- EPA Effluent Guidelines and Standards for Explosives Manufacturing
40 CFR Part 458 -- EPA Effluent Guidelines and Standards for Carbon Black Manufacturing
40 CFR Part 459 -- EPA Effluent Guidelines and Standards for Photographic Processing
40 CFR Part 460 -- EPA Effluent Guidelines and Standards for Hospitals
40 CFR Part 461 -- EPA Effluent Guidelines and Standards for Battery Manufacturing
40 CFR Part 463 -- EPA Effluent Guidelines and Standards for Plastic Molding and Forming
40 CFR Part 464 -- EPA Effluent Guidelines and Standards for Metal Molding and Casting (Foundries)
40 CFR Part 465 -- EPA Effluent Guidelines and Standards for Coil Coating
40 CFR Part 466 -- EPA Effluent Guidelines and Standards for Porcelain Enameling
40 CFR Part 467 -- EPA Effluent Guidelines and Standards for Aluminum Forming
40 CFR Part 468 -- EPA Effluent Guidelines and Standards for Copper Forming
40 CFR Part 469 -- EPA Effluent Guidelines and Standards for Electrical and Electronic Components
40 CFR Part 471 -- EPA Effluent Guidelines and Standards for Nonferrous Metals Forming and Metal Powders
(3) For industrial categories or parts of categories for which effluent limits and guidelines have not been published and adopted, effluent limitations for existing industrial waste discharges, or new industrial waste discharges shall be calculated by the staff using the projected limits of the Environmental Protection Agency, the Environmental Protection Agency development document, and other available information in order to achieve the purposes of Article 21.
(4) On a case-by-case basis, if the staff determines, based on its professional judgment and applicable State and Federal guidelines, Rules, and laws, that effluent limits established by Subparagraph (b)(2) of this Paragraph are not adequate to control settleable solids, the staff shall establish effluent limits for settleable solids. Such effluent limitations for settleable solids shall be applicable only when the projected average solids concentration exceeds 5.0 ml/l and the limitations established shall lie within the range of 0.1 ml/l to 5.0 ml/l.
History Note: Authority G.S. 143-215; 143 215.1; 143-215.3(a)(1), (4);
Eff. February 1, 1976;
Amended Eff. July 1, 1988; December 1, 1984; November 1, 1978; December 1, 1976;
Readopted Eff. May 1, 2020.