or waters. This includes all pipes, chan- and coal storage, refuse storage, and nels, ponds, basins, tanks and all other ancillary areas related to the cleaning equipment serving such structures. or beneficiation of coal of any rank in (p) The term “coal refuse disposal cluding, but not limited to, bitupile” means any coal refuse deposited minous, lignite, and anthracite. on the earth and intended as permanent dispoal long-term storage 8 434.21 [Reserved) (greater than 180 days) of such material, but does not include coal refuse $ 434.22 Effluent limitation guidelines deposited within the active mining representing the degree of effluent area or coal refuse never removed from reduction attainable by the applicathe active mining area. tion of the best practicable control (q) The term “controlled surface technology currently available mine drainage” means any surface (BPT). mine drainage that is pumped or si (a) Except as provided in 40 CFR phoned from the active mining area. 125.30–125.32, 40 CFR 401.17, and $$ 434.61, (r) The term "abandoned mine" 434.62 and 434.63 of this part, the folmeans a mine where mining operations lowing limitations establish the conhave occurred in the past and centration or quality of pollutants (1) The applicable reclamation bond which may be discharged by any existor financial assurance has been released or forfeited or ing coal preparation plant and coal (2) If no reclamation bond or other fi preparation plant associated areas subnancial assurance has been posted, no ject to the provisions of this subpart mining operations have occurred for after application of the best pracfive years or more. ticable control technology currently (s) The term “1-year, 24-hour precipi- available if discharges from such point tation event” means the maximum 24- sources normally exhibit a pH of less hour precipitation event with a prob- than 6.0 prior to treatment: able recurrence interval of once in one year as defined by the National Weath BPT EFFLUENT LIMITATIONS er Service and Technical Paper No. 40, “Rainfall Frequency Atlas of the Average of Pollutant or pollutant property Maximum for daily values U.S.,” May 1961, or equivalent regional any 1 day for 30 conor rainfall probability information de secutive days veloped therefrom. Concentration in mg 1 (t) The Term “2-year, 24-hour precipitation event" means the maximum 24 Iron, total hour precipitation event with a prob Manganese, total TSS able recurrence interval of once in two PH years as defined by the National Weather Service and Technical Paper Within the range of 6.0 to 9.0 at all times. No. 40, “Rainfall Frequency Atlas of (b) Except as provided in 40 CFR the U.S., “May 1961, or equivalent re 125.30–125.32, 40 CFR 401.17 and $$ 434.61 gional or rainfall probability informa and 434.63 of this part, the following tion developed therefrom. limitations establish the concentration or quality of pollutants which may be Subpart B-Coal Preparation discharged by any existing coal prepa Plants and Coal Preparation ration plant and coal preparation plant Plant Associated Areas associated areas subject to the provi sions of this subpart after application $ 434.20 Applicability. of the best practicable control techThe provisions of this subpart are ap- nology currently available if displicable to discharges from coal prepa- charges from such point sources norration plants and coal preparation mally exhibit a pH equal to or greater plant association areas, as indicated, than 6.0 prior to treatment: including discharges which pumped, siphoned, or drained from the coal preparation plant water circuit 7.0 4.0 70 3.5 2.0 35 1 are 8 434.24 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved] source $ 434.23 Effluent limitations guidelines representing the degree of effluent reduction attainable by application of the best available technology economically achievable (BAT). (a) Except as provided in 40 CFR 125.30–125.32, and $8 434.61, 434.62 and 434.63 of this part, the following limitations establish the concentration or quality of pollutants which may be discharged by any existing coal preparation plant and coal preparation plant associated areas subject to the provisions of this subpart after application of the best available technology economically achievable if discharges from such point sources normally exhibit a pH of less than 6.0 prior to treatment: $ 434.25 New performance standards (NSPS). The following new source performance standards (NSPS) shall be achieved by any new source coal preparation plant and coal preparation plant associated areas, as indicated: (a) Except as provided in 40 CFR 401.17 and 88 434.61, 434.62 and 434.63 of this part, the following new source performance standards shall apply to discharges from new source coal preparation plants and new source coal preparation plant associated areas, if such discharges normally exhibit a pH of less than 6.0 prior to treatment: BAT EFFLUENT LIMITATIONS 1 Within the range 6.0 to 9.0 at all times. (b) Underground mine drainage. The limitations in this subsection apply to discharges from the underground workings of underground mines until SMCRA bond release. (1) Except as provided in 40 CFR 125.30–125.32, 40 CFR 401.17 and $8 434.61, 434.62 and 434.63 of this part, the following limitations establish the concentration of quality of pollutants in acid or ferruginous mine drainage subject to the provisions of this subsection after application of the best practicable control technology currently available: § 434.53 Effluent limitations guidelines representing the degree of effluent reduction attainable by application of the best available technology economically achievable (BAT). (a) Reclamation areas. The limitations of this subsection apply to discharges from reclamation areas until SMCRA bond release. Except as provided in 40 CFR 125.30– 125.32, and SS 434.61 and 434.63(d)(2) of this part, the following limitations establish the concentration or quality of pollutants which may be discharged by a point source subject to the provisions of this subsection after application of the best available technology economically achievable: |