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Conditions for W9432 - 1 -0 ( continued ) Page 2 of 3 9 . Nitric acid ( HNO3 ) emissions from the exhaust of the packed bed scrubber shall not exceed 8 . 7 pounds in any one day . [District Rules 2201 and 4102] 10 . Fugitive emissions from this operation shall not exceed any of the following limits : 0 .9 Ib-NOx/day, 0 . 2 lb-NaOI-I/day, 0 . 3 Ib - H2SO4/day, and 0 . 9 Ib - HNO3 /day . [District Rules 2201 and 41021 11 . The scrubber' s NOx ( referenced as NO2 ) removal efficiency shall be at least 72% . [District Rule 2201 ] 12 . The scrubber removal efficiency shall be at least 95 % for each of the following pollutants : a) sodium hydroxide (NaOH ), b) sulfuric acid ( H2SO4 ) , and c) nitric acid ( HNO3 ) . [ District Rule 220 1 ] 13 . The slot velocity of the push/pull ventilation system shall not be less than 2 , 000 feet per minute . [District Rule 22011 14 . The ventilation system shall be designed and operated such that there is sufficient vacuum within the building in which the surface finishing operation is located to ensure an inward velocity exists at each opening (e . g . door, window, etc .) during surface finishing operations to ensure compliance with the 99 . 5 % capture efficiency requirement . Minimum values for this inward velocity shall be determined within 60 days of initial startup . During surface finishing operations , all doors and windows shall remain closed to the maximum extent possible . [District Rule 2201 ] 15 . The following scrubber operating parameters shall be established per manufacturer's recommendation at time of startup II nspection to ensure compliance with the permitted emissions limits : a) the range of differential pressure across the scrubber media, in unit of inch water column ; b) the scrubber spray nozzles flowrate, in unit of gallon per minute; c) the scrubber liquid recirculation flow rate and the liquid blow-down rate, each in unit of gallon per minute ; and d ) the range of pH reading across the scrubber media . [ District Rule 2201 ] 16 . Source testing to demonstrate compliance with the NOx , sodium hydroxide (NaOH) , sulfuric acid ( I-I2SO4) , and nitric acid ( HNO3 ) emissions limits , and the scrubber removal efficiencies of NOx , sodium hydroxide (NaOH ) , sulfuric acid ( H2SO4 ) , and nitric acid ( HNO3 ) shall be conducted within 60 days of initial start-up . Source testing to demonstrate ongoing compliance with the NOx emission limit shall be conducted at least once every 24 months thereafter. [ District Rule 2201 ] 17 . For the purposes of determining compliance with an applicable emission limit , the emission rate shall be calculated using the arithmetic average of three 30 -consecutive- minute test runs . If two of the three test runs show emissions above the applicable limit, that test cannot be used to demonstrate compliance with the application emission limit, even if the averaged emissions of all three runs are less than the applicable limit . [ District Rules 1081 and 2201 ] 18 . NOx emissions shall be measured using EPA Method 7 , 7A , 713 , 7C , 7D , or 7E or CARB Method 100 . Should the operator or permittee decide to use a different methodology, the methodology must be first approved by the District prior to use . [ District Rules 1081 and 220 1 ] 19 . Sulfuric Acid ( H2SO4 ) emissions shall be measured using EPA Method 8 . Should the operator or permittee decide to use a different methodology , the methodology must be first approved by the District prior to use . [ District Rules 1081 and 2201 ] 20 . Sodium Hydroxide (NaOH) and Nitric Acid (HNO3 ) emissions shall each be measured using an appropriate testing methodology . The testing methodology must be first approved by the District prior to use . [District Rules 1081 and 2201 ] 21 . Stack gas oxygen shall be determined using EPA Method 3 or 3A , or CARB Method 100 . [District Rules 1081 and 2201 ] 22 . Stack gas velocity shall be determined using EPA Method 2 . [ District Rules 1081 and 22011 23 . Stack gas moisture content shall be determined using EPA Method 4 . [District Rules 1081 and 2201 ] 24 . Capture efficiency of the push /pull ventilation system shall be measured using an appropriate testing methodology , such as EPA Method 204 - Criteria for and Verification of a Permanent or Temporary Total Enclosure . The testing methodology must be first approved by the District prior to use . [ District Rules 1081 and 22011 25 . Sampling facilities for source testing shall be provided in accordance with the provisions of Rule 1081 ( Source Sampling) . [ District Rule 1081 ] CONDITIONS CONTINUE ON NEXT PAGE