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Electronic Code of Federal Regulations

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

Title 40Chapter ISubchapter NPart 405Subpart D → §405.42


Title 40: Protection of Environment
PART 405—DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY
Subpart D—Butter Subcategory


§405.42   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 plants processing more than 175,000 lb/day of milk equivalent (more than 18,180 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)
BOD51.3750.550
TSS2.063.825
pH(1)(1)
English units (pounds per 100 lb of BOD5 input)
BOD50.1380.055
TSS0.206.083
pH(1)(1)

1Within the range 6.0 to 9.0.

(b) For plants processing 175,000 lb/day or less of milk equivalent (less than 18,180 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)
BOD51.8250.913
TSS2.7381.369
pH(1)(1)
English units (pounds per 100 lb of BOD5 input)
BOD50.1830.091
TSS.274.137
pH(1)(1)

1Within the range 6.0 to 9.0.

[39 FR 18597, May 28, 1974, as amended at 60 FR 33933, June 29, 1995]

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