40 CFR § 409.12 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
The following limitations establish the quantity or quality of pollutants or pollutant properties, controlled by this section, which may be discharged by a point source subject to the provisions of this subpart after application of the best practicable control technology currently available; provided however, that a discharge by a point source may be made in accordance with the limitations set forth in either paragraph (a) of this section exclusively, or paragraph (b) of this section exclusively, below:
(a) The following limitations establish the maximum permissible discharge of process waste water pollutants when the process waste water discharge results from barometric condensing operations only.
| Effluent characteristic | Effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days shall not exceed— | |
| Metric units (kg/kkg of product) | ||
| BOD |
3.3 | 2.2 |
| pH | ( 1) | ( 1) |
| Temperature | ( 2) | ( 2) |
| English units (lb/1,000 lb of product) | ||
| BOD |
3.3 | 2.2 |
| pH | ( 1) | ( 1) |
| Temperature | ( 3) | ( 3) |
1 Within the range 6.0 to 9.0.
2 Temperature not to exceed the temperature of cooled water acceptable for return to the heat producing process and in no event greater than 32 °C.
3 Temperature not to exceed the temperature of cooled water acceptable for return to the heat producing process and in no event greater than 90 °F.
(b) The following limitations establish the maximum permissible discharge of process waste water pollutants when the process waste water discharge results, in whole or in part, from barometric condensing operations and any other beet sugar processing operation.
| Effluent characteristic | Effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days shall not exceed— | |
| Metric units (kg/kkg of product) | ||
| BOD |
3.3 | 2.2 |
| TSS | 3.3 | 2.2 |
| pH | ( 1) | ( 1) |
| Fecal coliform | ( 2) | ( 2) |
| Temperature | ( 3) | ( 3) |
| English units (lb/1,000 lb of product) | ||
| BOD |
3.3 | 2.2 |
| TSS | 3.3 | 2.2 |
| pH | ( 1) | ( 1) |
| Fecal coliform | ( 4) | ( 4) |
| Temperature | ( 5) | ( 5) |
1 Within the range 6.0 to 9.0.
2 Not to exceed MPN of 400/100 ml at any time.
3 Not to exceed 32 °F.
4 Not to exceed MPN of 400/100 ml at any time (not typically expressed in English units).
5 Not to exceed 90 °F.