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 available technology economically achievable:
(a) The following limitations constitute the maximum permissible discharge for urea manufacturing operations in which urea is produced as a solution product:
| Effluent characteristics | Effluent limitations (mg/l) | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days shall not exceed— | |
| Ammonia (as N) | 0.53 | 0.27 |
| Organic nitrogen (as N) | 0.45 | 0.24 |
Note: Metric units: Kilogram/1,000 kg of product; English units: Pound/1,000 lb of product.
(b) The following limitations constitute the maximum permissible discharge for urea manufacturing operations in which urea is prilled or granulated:
| Effluent characteristics | Effluent limitations (mg/l) | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days shall not exceed— | |
| Ammonia (as N) | 0.53 | 0.27 |
| Organic nitrogen (as N) | .86 | .46 |
Note: Metric units: Kilogram/1,000 kg of product; English units: Pound/1,000 lb of product.
(Sec. 306(b), Federal Water Pollution Control Act, as amended (33 U.S.C. 1316(c)))
[43 FR 17826, Apr. 26, 1978]
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