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['Water Programs']
['Water Quality']
02/24/2022
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415.222 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently avail
(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart and producing titanium dioxide by the sulfate process must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):
| Pollutant or pollutant property | BPT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days | |
| Kg/kkg (or pounds per 1,000 lb) of product | ||
| TSS | 140 | 38 |
| Chromium (T) | 0.48 | 0.21 |
| Nickel (T) | 0.29 | 0.14 |
| pH | ( 1) | ( 1) |
| 1 Within the range 6.0 to 9.0. | ||
(b) Except as provided for in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart and producing titanium dioxide by the chloride process must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):
| Pollutant or pollutant property | BPT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days | |
| Kg/kkg (or pounds per 1,000 lb) of product | ||
| TSS | 23 | 6.4 |
| Chromium (T) | 0.057 | 0.030 |
| pH | ( 1) | ( 1) |
| 1 Within the range 6.0 to 9.0. | ||
(c) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart and producing titanium dioxide by the simultaneous beneficiation-chlorination (chloride/ilmenite) process must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):
| Pollutant or pollutant property | BPT effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days | |
| Kg/kkg (or pounds per 1,000 lb) of product | ||
| TSS | 35 | 9.6 |
| Chromium (T) | 0.12 | 0.053 |
| Nickel (T) | 0.072 | 0.035 |
| pH | ( 1) | ( 1) |
| 1 Within the range 6.0 to 9.0. | ||
[47 FR 28278, June 29, 1982, as amended at 47 FR 55227, Dec. 8, 1982]
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