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 characteristic	Effluent limitations
Effluent characteristic	Maximum for any 1 day	Average of daily values for 30 consecutive days shall not exceed—
	Metric units (kilograms per 1,000 kg of BOD5 input)
BOD5	1.00	0.400
TSS	1.50	.600
pH	(1)	(1)
	English units (pounds per 100 lb of BOD5 input)
BOD5	0.100	0.040
TSS	0.150	.060
pH	(1)	(1)
1 Within 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 characteristic	Effluent limitations
Effluent characteristic	Maximum for any 1 day	Average of daily values for 30 consecutive days shall not exceed—
	Metric units (kilograms per 1,000 kg of BOD5 input)
BOD5	1.30	0.650
TSS	1.95	.975
pH	(1)	(1)
	English units (pounds per 100 lb of BOD5 input)
BOD5	0.130	0.065
TSS	0.195	.098
pH	(1)	(1)
1 Within the range 6.0 to 9.0.

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

CFR

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