Appendix D to Part 403 - Selected Industrial Subcategories Considered Dilute for Purposes of the Combined Wastestream Formula
40:31.0.1.1.4.0.1.21.2 : Appendix D
Appendix D to Part 403 - Selected Industrial Subcategories
Considered Dilute for Purposes of the Combined Wastestream Formula
The following industrial subcategories are considered to have
dilute wastestreams for purposes of the combined wastestream
formula. They either were or could have been excluded from
categorical pretreatment standards pursuant to paragraph 8 of the
Natural Resources Defense Council, Inc., et al. v. Costle Consent
Decree for one or more of the following four reasons: (1) The
pollutants of concern are not detectable in the effluent from the
industrial user (paragraph 8(a)(iii)); (2) the pollutants of
concern are present only in trace amounts and are neither causing
nor likely to cause toxic effects (paragraph 8(a)(iii)); (3) the
pollutants of concern are present in amounts too small to be
effectively reduced by technologies known to the Administrator
(paragraph 8(a)(iii)); or (4) the wastestream contains only
pollutants which are compatible with the POTW (paragraph 8(b)(i)).
In some instances, different rationales were given for exclusion
under paragraph 8. However, EPA has reviewed these subcategories
and has determined that exclusion could have occurred due to one of
the four reasons listed above.
This list is complete as of October 9, 1986. It will be updated
periodically for the convenience of the reader.
Auto and Other Laundries (40 CFR part 444) Carpet and
Upholstery Cleaning Coin-Operated Laundries and Dry Cleaning Diaper
Services Dry Cleaning Plants except Rug Cleaning Industrial
Laundries Laundry and Garment Services, Not Elsewhere Classified
Linen Supply Power Laundries, Family and Commercial
Electrical
and Electronic Components 1 (40 CFR part 469)
1 The Paragraph 8 exemption for the manufacture of products in
the Electrical and Electronic Components Category is for operations
not covered by Electroplating/Metal Finishing pretreatment
regulations (40 CFR parts 413/433).
Capacitors (Fluid Fill) Carbon and Graphite Products Dry
Transformers Ferrite Electronic Devices Fixed Capacitors
Fluorescent Lamps Fuel Cells Incandescent Lamps Magnetic Coatings
Mica Paper Dielectric Motors, Generators, Alternators Receiving and
Transmitting Tubes Resistance Heaters Resistors Swithchgear
Transformer (Fluid Fill)
Metal Molding and Casting (40 CFR
part 464) Nickel Casting Tin Casting Titanium Casting
Gum and
Wood Chemicals (40 CFR part 454) Char and Charcoal Briquets
Inorganic Chemicals Manufacturing (40 CFR part 415) Ammonium
Chloride Ammonium Hydroxide Barium Carbonate Calcium Carbonate
Carbon Dioxide Carbon Monoxide and Byproduct Hydrogen Hydrochloric
Acid Hydrogen Peroxide (Organic Process) Nitric Acid Oxygen and
Nitrogen Potassium Iodide Sodium Chloride (Brine Mining Process)
Sodium Hydrosulfide Sodium Hydrosulfite Sodium Metal Sodium
Silicate Sodium Thiosulfate Sulfur Dioxide Sulfuric Acid
Leather (40 CFR part 425) Gloves Luggage
Paving and
Roofing (40 CFR part 443) Asphalt Concrete Asphalt Emulsion
Linoleum Printed Asphalt Felt Roofing
Pulp, Paper, and
Paperboard, and Builders' Paper and Board Mills (40 CFR parts
430 and 431) Groundwood-Chemi-Mechanical
Rubber
Manufacturing (40 CFR part 428) Tire and Inner Tube Plants
Emulsion Crumb Rubber Solution Crumb Rubber Latex Rubber
Small-sized General Molded, Extruded and Fabricated Rubber Plants,
2
2 Footnote: Except for production attributed to lead-sheathed
hose manufacturing operations.
Medium-sided General Molded, Extruded and Fabricated Rubber Plants
2 Large-sized General Molded, Extruded and Fabricated Rubber Plants
2 Wet Digestion Reclaimed Rubber Pan, Dry Digestion, and Mechanical
Reclaimed Rubber Latex Dipped, Latex-Extruded, and Latex-Molded
Rubber 3
3 Footnote: Except for production attributed to chromic acid
form-cleaning operations.
Latex Foam 4
4 Footnote: Except for production that generates zinc as a
pollutant in discharge.
Soap and Detergent Manufacturing (40 CFR part 417) Soap
Manufacture by Batch Kettle Fatty Acid Manufacture by Fat Splitting
Soap Manufacture by Fatty Acid Neutralization Glycerine
Concentration Glycerine Distillation Manufacture of Soap Flakes and
Powders Manufacture of Bar Soaps Manufacture of Liquid Soaps
Manufacture of Spray Dried Detergents Manufacture of Liquid
Detergents Manufacture of Dry Blended Detergents Manufacture of
Drum Dried Detergents Manufacture of Detergent Bars and Cakes
Textile Mills (40 CFR part 410) Apparel manufacturing
Cordage and Twine Padding and Upholstery Filling
Timber Products
Processing (40 CFR part 429) Barking Process Finishing
Processes Hardboard - Dry Process [51 FR 36372, Oct. 9, 1986]
Appendix E to Part 403 - Sampling Procedures
40:31.0.1.1.4.0.1.21.3 : Appendix E
Appendix E to Part 403 - Sampling Procedures I. Composite Method
A. It is recommended that influent and effluent operational data
be obtained through 24-hour flow proportional composite samples.
Sampling may be done manually or automatically, and discretely or
continuously. If discrete sampling is employed, at least 12
aliquots should be composited. Discrete sampling may be flow
proportioned either by varying the time interval between each
aliquot or the volume of each aliquot. All composites should be
flow proportional to either the stream flow at the time of
collection of the influent aliquot or to the total influent flow
since the previous influent aliquot. Volatile pollutant aliquots
must be combined in the laboratory immediately before analysis.
B. Effluent sample collection need not be delayed to compensate
for hydraulic detention unless the POTW elects to include detention
time compensation or unless the Approval Authority requires
detention time compensation. The Approval Authority may require
that each effluent sample is taken approximately one detention time
later than the corresponding influent sample when failure to do so
would result in an unrepresentative portrayal of actual POTW
operation. The detention period should be based on a 24-hour
average daily flow value. The average daily flow should in turn be
based on the average of the daily flows during the same month of
the previous year.
II. Grab Method
If composite sampling is not an appropriate technique, grab
samples should be taken to obtain influent and effluent operational
data. A grab sample is an individual sample collected over a period
of time not exceeding 15 minutes. The collection of influent grab
samples should precede the collection of effluent samples by
approximately one detention period except that where the detention
period is greater than 24 hours such staggering of the sample
collection may not be necessary or appropriate. The detention
period should be based on a 24-hour average daily flow value. The
average daily flow should in turn be based upon the average of the
daily flows during the same month of the previous year. Grab
sampling should be employed where the pollutants being evaluated
are those, such as cyanide and phenol, which may not be held for an
extended period because of biological, chemical or physical
interaction which take place after sample collection and affect the
results.
[49 FR 31225, Aug. 3, 1984]