405.72—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 with a dairy products input of more than 85,000 lb/day of milk equivalent (more than 8,830 lb/day of BOD5 input).
| Effluent characteristic | Effluent limitations | |
|---|---|---|
| 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 | 2.20 | 0.880 |
| TSS | 3.30 | 1.320 |
| pH | (1) | (1) |
| English units (pounds per 100 lb of BOD5 input) | ||
| BOD5 | 0.220 | 0.068 |
| TSS | 0.330 | .132 |
| pH | (1) | (1) |
| 1 Within the range 6.0 to 9.0. | ||
(b)
For plants with a dairy products input of 85,000 lb/day or less of milk equivalent (less than 8.830 lb/day of BOD5 input).
| Effluent characteristic | Effluent limitations | |
|---|---|---|
| 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 | 2.926 | 1.463 |
| TSS | 4.388 | 2.194 |
| pH | (1) | (1) |
| English units (pounds per 100 lb of BOD5 input) | ||
| BOD5 | 0.293 | 0.146 |
| TSS | 0.439 | .219 |
| pH | (1) | (1) |
| 1 Within the range 6.0 to 9.0. | ||
[39 FR 18597, May 28, 1974, as amended at 39 FR 32993, Sept. 13, 1974; 60 FR 33934, June 29, 1995]