technology currently available.
(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart 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): ------------------------------------------------------------------------
BPT Effluent
limitations
------------------------
Average of
daily
Pollutant or pollutant property Maximum values for
for any 1 30
day consecutive
days shall
not exceed------------------------------------------------------------------------
Metric units (kilograms
per 1,000 m\3\ of
feedstock)
-------------BOD5........................................... 34.6 18.4TSS............................................ 23.4 14.8COD \1\........................................ 210.0 109.0Oil and grease................................. 11.1 5.9Phenolic compound.............................. 0.25 0.120Ammonia as N................................... 23.4 10.6Sulfide........................................ 0.22 0.099Total chromium................................. 0.52 0.30Hexavalent chromium............................ 0.046 0.020pH............................................. (\2\) (\2\)
-------------
English units (pounds
per 1,000 bbl of
feedstock)
-------------BOD5........................................... 12.1 6.5TSS............................................ 8.3 5.25COD \1\........................................ 74.0 38.4Oil and grease................................. 3.9 2.1Phenolic compounds............................. 0.088 0.0425Ammonia as N................................... 8.25 3.8Sufide......................................... 0.078 0.035Total chromium................................. 0.183 0.107Hexavalent chromium............................ 0.016 0.0072pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ See footnote following table in Sec. 419.13(d).\2\ Within the range of 6.0 to 9.0.
(b) The limits set forth in paragraph (a) of this section are to be multiplied by the following factors to calculate the maximum for any one day and maximum average of daily values for thirty consecutive days.
(1) Size factor. ------------------------------------------------------------------------
Size
1,000 barrels of feedstock per stream day factor------------------------------------------------------------------------Less than 24.9................................................. 0.7325.0 to 49.9................................................... 0.7650.0 to 74.9................................................... 0.8375.0 to 99.9................................................... 0.91100.0 to 124.9................................................. 0.99125.0 to 149.9................................................. 1.08150.0 or greater............................................... 1.13------------------------------------------------------------------------
(2) Process factor. ------------------------------------------------------------------------
Process
Process configuration factor------------------------------------------------------------------------Less than 4.49................................................. 0.73
4.5 to 5.49.................................................... 0.805.5 to 5.99.................................................... 0.916.0 to 6.49.................................................... 0.996.5 to 6.99.................................................... 1.087.0 to 7.49.................................................... 1.177.5 to 7.99.................................................... 1.288.0 to 8.49.................................................... 1.398.5 to 8.99.................................................... 1.519.0 to 9.49.................................................... 1.659.5 or greater................................................. 1.72------------------------------------------------------------------------
(3) See the comprehensive example in subpart D, Sec. 419.42(b)(3).
(c) The provisions of Sec. 419.12(c) apply to discharges of process wastewater pollutants attributable to ballast water by a point source subject to the provisions of this subpart.
(d) The quantity and quality of pollutants or pollutant properties controlled by this paragraph, attributable to once-through cooling water, are excluded from the discharge allowed by paragraph (b) of this section. Once-through cooling water may be discharged with a total organic carbon concentration not to exceed 5 mg/l.
(e) Effluent limitations for contaminated runoff. The following effluent limitations constitute the quantity and quality of pollutants or pollutant properties controlled by this paragraph and attributable to contaminated runoff, which may be discharged after the application of the best practicable control technology currently available by a point source subject to this subpart.
(1) If wastewater consists solely of contaminated runoff and is not commingled or treated with process wastewater, it may be discharged if it does not exceed 15 mg/l oil and grease and 110 mg/l total organic carbon (TOC) based upon an analysis of any single grab or composite sample.
(2) If contaminated runoff is commingled or treated with process wastewater, or if wastewater consisting solely of contaminated runoff which exceeds 15 mg/l oil and grease or 110 mg/l TOC is not commingled or treated with any other type of wastewater, the quantity of pollutants discharged shall not exceed the quantity determined by multiplying the flow of contaminated runoff as determined by the permit writer times the concentrations listed in the following table: ------------------------------------------------------------------------
BPT effluent limitations
for contaminated runoff
---------------------------
Average of
Pollutant or pollutant property daily values
Maximum for for 30
any 1 day consecutive
days shall
not exceed------------------------------------------------------------------------
Metric units (kilograms
per 1,000 m\3\ of flow)
---------------BOD5........................................ 48. 26.TSS......................................... 33. 21.COD \1\..................................... 360. 180.Oil and grease.............................. 15. 8.Phenolic compounds (4AAP)................... 0.35 0.17Total chromium.............................. 0.73 0.43Hexavalent chromium......................... 0.062 0.028pH.......................................... (\2\) (\2\)
---------------
English units (pounds per
1,000 gallons of flow)
---------------BOD5........................................ 0.40 0.22TSS......................................... 0.28 0.18COD \1\..................................... 3.0 1.5Oil and grease.............................. 0.13 0.067Phenolic compounds (4AAP)................... 0.0029 0.0014Total chromium.............................. 0.0060 0.0035Hexavalent chromium......................... 0.00052 0.00023pH.......................................... (\2\) (\2\)------------------------------------------------------------------------\1\ In any case in which the applicant can demonstrate that the chloride
ion concentration in the effluent exceeds 1,000 mg/l (1,000 ppm), the
permitting authority may substitute TOC as a parameter in lieu of COD.
A TOC effluent limitation shall be based on effluent data from the
particular refinery which correlates TOC to BOD5. If in the judgment
of the permitting authority, adequate correlation data are not
available, the effluent limitations for TOC shall be established at a
ratio of 2.2 to 1 to the applicable effluent limitations for BOD5.\2\ Within the range of 6.0 to 9.0. [47 FR 46446, Oct. 18, 1982, as amended at 50 FR 28522, 28523, July 12, 1985; 50 FR 32414, Aug. 12, 1985]