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Title 40: Protection of Environment
CHAPTER I: ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
SUBCHAPTER N: EFFLUENT GUIDELINES AND STANDARDS
PART 415: INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY
Subpart V: Titanium Dioxide Production Subcategory
415.226 - Pretreatment standards for new sources (PSNS).
(a) Except as provided in 40 CFR 403.7, any new source subject to this subpart and producing titanium dioxide by the sulfate process which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS):
| Pollutant or pollutant property | PSNS effluent limitations | Maximum for any 1 day | Average of daily values for 30 consecutive days |
| Milligrams per liter (mg/1) | ||
| Iron (T) | 8.5 | 2.5 |
| Chromium (T) | 0.57 | 0.30 |
| Nickel (T) | 0.38 | 0.20 |
In cases where POTWs find it necessary to impose mass limitations, the following equivalent mass limitations are provided as an alternate: The limitations for Iron(T), Chromium(T), and Nickel(T) are the same as specified in ? 415.225(a).(b) Except as provided in 40 CFR 403.7, any new source subject to this subpart and producing titanium dioxide by the chloride process which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS):
| Pollutant or pollutant property | PSNS effluent limitations | Maximum for any 1 day | Average of daily values for 30 consecutive days |
| Milligrams per liter (mg/1) | ||
| Iron (T) | 5.3 | 1.6 |
| Chromium (T) | 0.23 | 0.12 |
In cases where POTWs find it necessary to impose mass limitations, the following equivalent mass limitations are provided as guidance: The limitations for Iron(T) and Chromium(T) are the same as specified in ? 415.255(b).
(c) Except as provided in ? 403.7, any new source subject to this subpart and producing titanium dioxide by the simultaneous beneficiation-chlorination (chloride-ilmenite) process which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS):
| Pollutant or pollutant property | PSNS effluent limitations | Maximum for any 1 day | Average of daily values for 30 consecutive days |
| Milligrams per liter (mg/l) | ||
| Iron (T) | 5.3 | 1.6 |
| Chromium (T) | 0.23 | 0.12 |
| Nickel (T) | 0.33 | 0.17 |
In cases where POTWs find it necessary to impose mass limitations, the following equivalent mass limitations are provided as an alternate: The limitations for Iron (T), Chromium (T), and Nickel (T) are the same as specified in ? 415.225(c).
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