§ 430.02 Monitoring requirements.
This section establishes minimum monitoring frequencies for certain pollutants. Where no monitoring frequency is specified in this section or where the duration of the minimum monitoring frequency has expired under paragraphs (b) through (e) of this section, the permit writer or pretreatment control authority shall determine the appropriate monitoring frequency in accordance with 40 CFR 122.44(i) or 40 CFR part 403, as applicable.
(a) BAT, NSPS, PSES, and PSNS monitoring frequency for chlorinated organic pollutants. The following monitoring frequencies apply to discharges subject to subpart B or subpart E of this part:
| CAS number | Pollutant | Minimum monitoring frequency | |
|---|---|---|---|
| Non-TCF a | TCF b | ||
| 1198556 | Tetrachlorocatechol | Monthly | ( c) |
| 2539175 | Tetrachloroguaiacol | Monthly | ( c) |
| 2539266 | Trichlorosyringol | Monthly | ( c) |
| 2668248 | 4,5,6-trichloroguaiacol | Monthly | ( c) |
| 32139723 | 3,4,6-trichlorocatechol | Monthly | ( c) |
| 56961207 | 3,4,5-trichlorocatechol | Monthly | ( c) |
| 57057837 | 3,4,5-trichloroguaiacol | Monthly | ( c) |
| 58902 | 2,3,4,6-tetrachlorophenol | Monthly | ( c) |
| 60712449 | 3,4,6-trichloroguaiacol | Monthly | ( c) |
| 87865 | Pentachlorophenol d | Monthly | ( c) |
| 88062 | 2,4,6-trichlorophenol d | Monthly | ( c) |
| 95954 | 2,4,5-trichlorophenol d | Monthly | ( c) |
| 1746016 | 2,3,7,8-TCDD | Monthly | ( c) |
| 51207319 | 2,3,7,8-TCDF | Monthly | ( c) |
| 67663 | chloroform e | Weekly | ( c) |
| 59473040 | AOX f | Daily | None specified. |
a Non-TCF: Pertains to any fiber line that does not use exclusively TCF bleaching processes.
b TCF: Pertains to any fiber line that uses exclusively TCF bleaching processes, as disclosed by the discharger in its permit application under 40 CFR 122.21(g)(3) and certified under 40 CFR 122.22 or, for indirect dischargers, as reported to the pretreatment control authority under 40 CFR 403.12 (b), (d), or (e).
c This regulation does not specify a limit for this pollutant for TCF bleaching processes.
d Monitoring frequency does not apply to this compound when used as a biocide. The permitting or pretreatment control authority must determine the appropriate monitoring frequency for this compound, when used as a biocide, under 40 CFR 122.44(i) or 40 CFR part 403, as applicable.
e This regulation does not specify a limit for this pollutant for subpart E mills.
f This regulation does not specify a limit for this pollutant for the ammonium-based or specialty grade sulfite pulp segments of subpart E.
(b) Duration of required monitoring for BAT, NSPS, PSES, and PSNS. The monitoring frequencies specified in paragraph (a) of this section apply for the following time periods:
(1) For direct dischargers, a duration of 5 years commencing on the date the applicable limitations or standards from subpart B or subpart E of this part are first included in the discharger's NPDES permit;
(2) For existing indirect dischargers, until April 17, 2006;
(3) For new indirect dischargers, a duration of 5 years commencing on the date the indirect discharger commences operation.
(c) Reduced monitoring frequencies for bleach plant pollutants under the Voluntary Advanced Technology Incentives Program. The following monitoring frequencies apply to mills enrolled in the Voluntary Advanced Technology Incentives Program established under subpart B of this part for a duration of 5 years commencing after achievement of the applicable BAT limitations specified in § 430.24(b)(3) or NSPS specified in § 430.25(c)(1) for the following pollutants, except as noted in footnote f: