40 CFR 471.34: Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and by August 23, 1988 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in nickel-cobalt forming wastewater introduced into a POTW shall not exceed the following values:

(a) Rolling spent neat oils—subpart C—PSES. There shall be no discharge of process wastewater pollutants.

(b) Rolling spent emulsions.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with emulsions

Chromium 0.063 0.026

Nickel 0.094 0.063

Fluoride 10.1 4.49

(c) Rolling contact cooling water.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt rolled with water

Chromium 0.028 0.011

Nickel 0.042 0.028

Fluoride 4.49 1.99

(d) Tube Reducing Spent Lubricant—subpart C—PSES. (1) There shall be no discharge of process wastewater pollutants except as provided under paragraph (d)(2) of this section.

(2) Process wastewater pollutants may be discharged, with no allowance for any pollutants discharged, provided the facility owner or operator demonstrates, on the basis of analytical methods set forth in or approved pursuant to 40 CFR part 136, that the concentrations of nitrosamine compounds in the wastewater discharged from the tube reducing process do not exceed 0.050 mg/l of N-nitrosodimethylamine, 0.020 mg/l of N-nitrosodiphenylamine, and 0.020 mg/l of N-nitrosodi-n-propylamine.

(3) The demonstration required under paragraph (d)(2) of this section shall be made once per month until the demonstration has been made for all three nitrosamine compounds for six consecutive months, after which time the demonstration may be made once per quarter. If a sample is found to contain any of the foregoing nitrosamine compounds at concentrations greater than those specified in paragraph (d)(2) of this section, the actions described in paragraph (d)(4) of this section shall be taken, and the demonstration required under paragraph (d)(2) of this section shall be made once per month until it has been made for all three nitrosamine compounds for six consecutive months.

(4) If sampling results show that any of the foregoing nitrosamine compounds is present in the process wastewater at concentrations greater than those specified in paragraph (d)(2) of this section, the facility owner or operator shall ensure that, within thirty days of receiving written notification of the sampling results, there is no further discharge of tube reducing spent lubricant wastewater until the owner or operator:

(i) Performs a subsequent analysis which demonstrates that the concentrations of the foregoing nitrosamine compounds do not exceed the levels specified in paragraph (d)(2) of this section; or

(ii) Substitutes a new tube reducing lubricant and thereafter complies with the requirements of paragraph (d)(3) of this section; or

(iii) Determines the source of the pollutant whose concentration exceeded the level specified in paragraph (d)(2) of this section and demonstrates to the satisfaction of the POTW control authority that such source has been eliminated.

(5) The concentration limits specified in paragraph (d)(2) of this section apply at the point of discharge from the tube reducing process. However, sampling after the tube reducing wastewater has been commingled with other wastewaters is permitted if:

(i) Any dilution caused by the other wastewaters is taken into account in determining the appropriate (i.e., lower) allowable discharge concentration; and

(ii) An analytical method of sufficient sensitivity is used to measure the levels of each of the foregoing nitrosamine compounds in the wastewaters being sampled.

(e) Drawing spent neat oils—subpart C—PSES. There shall be no discharge of process wastewater pollutants.

(f) Drawing spent emulsions.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt drawn with emulsions

Chromium 0.036 0.014

Nickel 0.053 0.036

Fluoride 5.68 2.52

(g) Extrusion spent lubricants—subpart C—PSES. There shall be no discharge of process wastewater pollutants.

(h) Extrusion press or solution heat treatment contact cooling water.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of extruded nickel-cobalt heat treated

Chromium 0.031 0.013

Nickel 0.046 0.031

Fluoride 4.95 2.20

(i) Extrusion press hydraulic fluid leakage.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt extruded

Chromium 0.086 0.034

Nickel 0.128 0.086

Fluoride 13.8 6.13

(j) Forging equipment cleaning wastewater.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium 0.002 0.0006

Nickel 0.002 0.002

Fluoride 0.238 0.106

(k) Forging contact cooling water.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of forged nickel-cobalt cooled with water

Chromium 0.018 0.007

Nickel 0.026 0.018

Fluoride 2.82 1.25

(l) Forging press hydraulic fluid leakage.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt forged

Chromium 0.069 0.028

Nickel 0.103 0.069

Fluoride 11.2 4.94

(m) Forging spent lubricants—subpart C—PSES. There shall be no discharge of process wastewater pollutants.

(n) Stationary casting contact cooling water.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt cast with stationary methods

Chromium 0.448 0.182

Nickel 0.666 0.448

Fluoride 72.0 32.0

(o) Vacuum melting steam condensate—subpart C—PSES. There shall be no allowance for the discharge of wastewater pollutants.

(p) Metal powder production atomization wastewater.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt metal powder atomized

Chromium 0.970 0.393

Nickel 1.44 0.970

Fluoride 156 69.2

(q) Annealing and solution heat treatment contact cooling water—subpart C—PSES. There shall be no allowance for the discharge of wastewater pollutants.

(r) Wet air pollution control scrubber blowdown.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium 0.300 0.122

Nickel 0.446 0.300

Fluoride 48.2 21.4

(s) Surface treatment spent baths.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium 0.346 0.141

Nickel 0.514 0.346

Fluoride 55.7 24.7

(t) Surface treatment rinse.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt surface treated

Chromium 0.873 0.354

Nickel 1.30 0.873

Fluoride 141 62.3

(u) Alkaline cleaning spent baths.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium 0.013 0.005

Nickel 0.019 0.013

Fluoride 2.02 0.895

(v) Alkaline cleaning rinse.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt alkaline cleaned

Chromium 0.086 0.035

Nickel 0.128 0.086

Fluoride 13.9 6.15

(w) Molten salt rinse.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with molten salt

Chromium 0.312 0.127

Nickel 0.464 0.312

Fluoride 50.2 22.3

(x) Ammonia rinse.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt treated with ammonia solution

Chromium 0.006 0.002

Nickel 0.008 0.006

Fluoride 0.881 0.391

(y) Sawing or grinding spent emulsions.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt sawed or ground with emulsions

Chromium 0.015 0.006

Nickel 0.022 0.015

Fluoride 2.35 1.04

(z) Sawing or grinding rinse.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of sawed or ground nickel-cobalt rinsed

Chromium 0.067 0.027

Nickel 0.100 0.067

Fluoride 10.8 4.78

(aa) Steam cleaning condensate.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt steam cleaned

Chromium 0.011 0.005

Nickel 0.017 0.011

Fluoride 1.79 0.795

(bb) Hydrostatic Tube Testing and Ultrasonic Testing Wastewater—subpart C—PSES. There shall be no allowance for the discharge of process wastewater pollutants.

(cc) Degreasing Spent Solvents—subpart C—PSES. There shall be no discharge of process wastewater pollutants.

(dd) Dye Penetrant Testing Wastewater.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt tested with dye penetrant method

Chromium 0.079 0.032

Nickel 0.117 0.079

Fluoride 12.7 5.63

(ee) Electrocoating rinse.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt electrocoated

Chromium 1.25 0.506

Nickel 1.86 1.25

Fluoride 201 89.0

(ff) Miscellaneous wastewater sources.

Subpart C—PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of nickel-cobalt formed

Chromium 0.091 0.037

Nickel 0.136 0.091

Fluoride 14.7 6.50