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Conditions for 5-3125-6-1 (continued) Page 2 of 2 <br /> 9. The carbon canisters removed from the system shall be sealed vapor tight. [District Rule 22011 <br /> 10. Either the VOC control efficiency shall not be less than 98%, or the total VOC emission rate shall not exceed 2 pounds <br /> in any one day. [District Rule 2201] <br /> 11. The total VOC emissions from the operation shall not exceed 7.6 pounds in any one day. [District Rule 22011 <br /> 12. Neither the ventilation rate nor the effluent gas flow rate shall exceed 2,000 scfm. [District Rule 220 11 <br /> 13, The VOC concentration of the effluent gas from the carbon canisters shall not exceed 10 ppmv. [District Rule 2201] <br /> 14. The H2S concentration of the effluent gas from the carbon canisters shall not exceed 5 ppmv. [District Rule 4102] <br /> 15. Initial VOC concentration and flow rate measurements shall be taken at each new location to determine the appropriate <br /> size of carbon canister to he used. [District Rule 2201] <br /> 16. The minimum weight of the primary carbon canister(s) shall be determined using the following equation: Minimum <br /> Carbon Weight [lb] _(Influent Contaminant Concentration [ppmv] x 10^-6)x(Influent Flow Rate [ft3/min])x(1 lb- <br /> mole/385.4 ft3)x(Contaminant Mol. Wt. [Ib/lb-mole])x(1440 min/day)x (4.9 lb-Carbon/lb-Contaminant) [District <br /> Rule 2201] <br /> 17. The minimum weight the final carbon canister shall be 225 Ib. [District Rule 2201] <br /> 18. The exhaust stack shall vent vertically upward. The vertical exhaust flow shall not be impeded by a rain cap, roof <br /> overhang, or any other obstruction. [District Rule 2201] <br /> 19. Sampling ports adequate for extraction of grab samples, measurement of gas flow rate, and use of an FID, PID,or <br /> other District-approved VOC detection device shall be provided for both the influent and the effluent gas streams. <br /> [District Rule 1081] <br /> 20. Sampling ports adequate for use of a Draeger tube or other District-approved H2S detection device shall be provided <br /> for the effluent gas stream. [District Rule 1081] <br /> 21. Ongoing compliance with VOC emission rate and control efficiency requirements shall be demonstrated by sampling <br /> both the influent and the effluent gas streams with an FID, PID, or other District-approved VOC detection device. <br /> [District Rule 1081] <br /> 22. Compliance with VOC and 1­12S concentration limits shall be demonstrated by sampling the effluent gas stream at least <br /> once per day, excluding days when no liquid transfer occurs into the equipment vented to this system. [District Rule <br /> 1081 and 2201] <br /> 23. Measurements to determine the pH of scrubbing liquid,the influent and the effluent gas flow rates shall be taken at the <br /> initial inspection. Flow rate calculations and calculations of minimum carbon canister size shall be submitted to the <br /> District within 30 days of initial inspection. [District Rules 108 land 22011 <br /> 24. The maximum pH of sulfuric acid scrubbing solution in the covered vessels shall not exceed 4.0. [District Rule 2201] <br /> 25. The minimum pH of caustic soda scrubbing solution in the covered vessels shall not be less than 10.0. [District Rule <br /> 2201] <br /> 26. Permittee shall sample the pH of the scrubbing liquid at least once per day and record the pH and identity of scrubbing <br /> solution, excluding days when no liquid transfer occurs into the equipment vented to this system . [District Rules 1081 <br /> and 2201] <br /> 27. The pH of the scrubbing solution shall be measured using a pH meter. The pH meter shall be calibrated at least once <br /> per month, and more often if necessary, to ensure the accuracy of the meter readings. [District Rule 22011 <br /> 28. Records of the date, location, running time, measured influent, intermediary, and effluent VOC concentration, <br /> measured H2S concentration, type of vessel controlled by the scrubbing vessels and carbon canisters, scrubber solution <br /> used, scrubbing vessel pH, and calculations of minimum carbon canister size shall be maintained. [District Rule 2201] <br /> 29. All records shall be retained for a minimum of five years, and shall be made available for District inspection upon <br /> request. [District Rule 2201] <br /> S312S 1 MW 19300921IPM-ROZO C <br />