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Electronic Code of Federal Regulations

e-CFR data is current as of June 2, 2020

Title 40Chapter ISubchapter NPart 405 → Subpart L


Title 40: Protection of Environment
PART 405—DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY


Subpart L—Dry Whey Subcategory


Contents
§405.120   Applicability; description of the dry whey subcategory.
§405.121   Specialized definitions.
§405.122   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§405.123   [Reserved]
§405.124   Pretreatment standards for existing sources.
§405.125   Standards of performance for new sources.
§405.126   Pretreatment standards for new sources.
§405.127   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).

§405.120   Applicability; description of the dry whey subcategory.

The provisions of this subpart are applicable to discharges resulting from the manufacture of sweet or acid dry whey.

§405.121   Specialized definitions.

For the purpose of this subpart:

(a) Except as provided below, the general definitions, abbreviations and methods of analysis set forth in part 401 of this chapter shall apply to this subpart.

(b) The term BOD5 input shall mean the biochemical oxygen demand of the materials entered into process. It can be calculated by multiplying the fats, proteins and carbohydrates by factors of 0.890, 1.031 and 0.691 respectively. Organic acids (e.g., lactic acids) should be included as carbohydrates. Composition of input materials may be based on either direct analyses or generally accepted published values.

§405.122   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

Except as provided in §§125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) For whey drying plants with an input equivalent to more than 57,000 lb/day of 40 percent solids whey (22,800 lb/day of solids or 15,620 lb/day of BOD5 input).

Effluent characteristicEffluent limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days shall not exceed—
Metric units (kilograms per 1,000 kg of BOD5 input)
BOD51.000.400
TSS1.50.600
pH(1)(1)
English units (pounds per 100 lb of BOD5 input)
BOD50.1000.040
TSS0.150.060
pH(1)(1)

1Within the range 6.0 to 9.0.

(b) For whey drying plants with an input equivalent to 57,000 lb/day or less of 40 percent solids whey (under 22,800 lb/day solids or 15,620 lb/day of BOD5 input).

Effluent characteristicEffluent limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days shall not exceed—
Metric units (kilograms per 1,000 kg of BOD5 input)
BOD51.300.650
TSS1.95.975
pH(1)(1)
English units (pounds per 100 lb of BOD5 input)
BOD50.1300.065
TSS0.195.098
pH(1)(1)

1Within the range 6.0 to 9.0.

[39 FR 18597, May 28, 1974, as amended at 60 FR 33935, June 29, 1995]

§405.123   [Reserved]

§405.124   Pretreatment standards for existing sources.

Any existing source subject to this subpart that introduces process wastewater pollutants into a publicly owned treatment works must comply with 40 CFR part 403. In addition, the following pretreatment standard establishes the quantity or quality of pollutants or pollutant properties controlled by this section which may be discharged to a publicly owned treatment works by a point source subject to the provisions of this subpart.

Pollutant or pollutant propertyPretreatment standard
pHNo limitation.
BOD5      Do.
TSS      Do.

[40 FR 6435, Feb. 11, 1975, as amended at 60 FR 33935, June 29, 1995]

§405.125   Standards of performance for new sources.

The following standards of performance establish the quantity or quality of pollutants or pollutant properties, controlled by this section, which may be discharged by a new source subject to the provisions of this subpart:

Effluent characteristicEffluent limitations
Maximum for any 1 dayAverage of daily values for 30 consecutive days shall not exceed—
Metric units (kilograms per 1,000 kg of BOD5 input)
BOD50.2200.110
TSS0.275.138
pH(1)(1)
English units (pounds per 100 lb of BOD5 input)
BOD50.0220.011
TSS0.023.014
pH(1)(1)

1Within the range 6.0 to 9.0.

§405.126   Pretreatment standards for new sources.

Any new source subject to this subpart that introduces process wastewater pollutants into a publicly owned treatment works must comply with 40 CFR part 403.

[60 FR 33935, June 29, 1995]

§405.127   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT).

Except as provided in §§125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT): The limitations shall be the same as those specified for conventional pollutants (which are defined in §401.16) in §405.122 of this subpart for the best practicable control technology currently available (BPT).

[51 FR 24996, July 9, 1986]

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