( 4) If a wastewater stream is in compliance with the requirements in paragraph ( d), ( e), ( f), ( h), or ( m) of this section before entering the biological treatment unit, the organic wastewater compound mass of that wastewater is not required to be included in the total mass flow rate entering the biological treatment unit for the purpose of demonstrating compliance.

( h) Treatment in a RCRA unit option. The owner or operator shall treat the wastewater stream or residual in a unit identified in, and complying with, paragraph ( h)( 1), ( 2), or ( 3) of this section. These units are exempt from the design evaluation or performance test requirements specified in paragraphs ( a)( 4) and ( j) of this section, and from the monitoring requirements specified in § 60.781 of this subpart, as well as recordkeeping and reporting requirements associated with monitoring and performance tests.

( 1) The wastewater stream or residual is discharged to a hazardous waste incinerator for which the owner or operator has been issued a final permit under 40 CFR part 270 and complies with the requirements of 40 CFR part 264, subpart O, or 86 STAFF DRAFT  09/ 30/ 2005 has certified compliance with the interim status requirements of 40 CFR part 265,

subpart O.

( 2) The wastewater stream or residual is discharged to a process heater or boiler burning hazardous waste for which the owner or operator:

( i) Has been issued a final permit under 40 CFR part 270 and complies with the requirements of 40 CFR part 266, subpart H; or ( ii) Has certified compliance with the interim status requirements of 40 CFR part 266, subpart H.

( 3) The wastewater stream or residual is discharged to an underground injection well for which the owner or operator has been issued a final permit under 40 CFR part 270 or 40 CFR part 144 and complies with the requirements of 40 CFR part 122.

The owner or operator shall comply with all applicable requirements of this subpart prior to the point where the wastewater enters the underground portion of the injection well.

( i) Alternative Requirements for Biological Treatment. For any wastewater streams that are Group 1, you may elect to comply with the requirements specified in paragraph ( b)( 1) of this section as an alternative to the otherwise applicable requirements specified in paragraph ( a) of this section. You must include in this calculation all OWC detected in the inlet to the first primary treatment unit. 87 STAFF DRAFT  09/ 30/ 2005 ( 1) If the wastewater stream is discharged to open biological treatment, § 60.774 does not apply for any equalization unit, neutralization unit, or clarifier prior to the activated sludge unit, the control options specified in § 60.779( g) do not apply, and the performance testing requirements specified in § 60.783( g) do not apply, provided you comply with all of the conditions specified in paragraphs ( b)( 1)( i) through ( vii).

( i) Wastewater must be hard piped between the equalization unit, neutralization unit, clarifier, and activated sludge unit.

( ii) Calculate the destruction efficiency of the biological treatment unit using Equation 5 of this section. You have demonstrated compliance if E is greater than or equal to 90 percent.

[ Equation 5] E QMWa QMGe QMGn QMGc Fbio QMWa =       X ( )() 100 Where:

E = Destruction efficiency of total OWC for the biological treatment unit including the equalization unit, neutralization unit, and/ or clarifier, percent QMWa = mass flow rate of total OWC compounds entering the equalization unit, kg/ hr QMGe = mass flow rate of total OWC compounds emitted from 88 STAFF DRAFT  09/ 30/ 2005 the equalization units, kg/ hr QMGn = mass flow rate of total OWC compounds emitted from the neutralization units, kg/ hr QMGc = mass flow rate of total OWC compounds emitted from the clarifier, kg/ hr Fbio = Site specific fraction of OWC compounds biodegraded in the biological treatment unit ( iii) Determine the value of the terms in Equation 5 of this section under representative conditions in accordance with § 60.783( a)( 8) and ( 9).

( iv) Determine OWC concentrations and the total wastewater flow rate at the inlet to the equalization unit or clarifier,

whichever comes first, to calculate QMa.

( v) Determine QMGe, QMGn and QMGc using WATER9 or the most recent update to this model, and conduct testing or use other procedures to validate the modeling results.

( vi) Determine Fbio for the activated sludge unit as specified in § 60.783( h)( 2)( ii). For units that are not required to conduct performance testing to determine Fbio as described in § 60.783( h)( 1), replace the Fbio term in eqaution 5 of this section with the numeral " 1".

( vii) Comply with the monitoring requirements specified in 89 STAFF DRAFT  09/ 30/ 2005 § 60.781( b) for the biological treatment unit.

( viii) Submit the data and results of your demonstrtaion,

including both a description of and the results of your WATER9 modeling validation procedures in your notification of compliance status report as specified in § 60.784( c).

( j) Design evaluations or performance tests for treatment processes. Except as provided in paragraph ( j)( 3), ( h), or ( m)

of this section, the owner or operator shall demonstrate by the procedures in either paragraph ( j)( 1) or ( 2) of this section that each non biological treatment process used to comply with paragraphs ( e) and/ or ( f) of this section achieves the conditions specified for compliance. The owner or operator shall demonstrate by the procedures in either paragraph ( j)( 1) or ( 2)

of this section that each closed biological treatment process used to comply with paragraph ( f) or ( g) of this section achieves the conditions specified for compliance. If an open biological treatment unit is used to comply with paragraph ( f) or ( g) of this section, the owner or operator shall comply with § 60.783( f)

or § 60.783( g), respectively, of this subpart. Some open biological treatment processes may not require a performance test. Refer to § 60.783( h) of this subpart to determine whether the open biological treatment process meets the criteria that exempt the owner or operator from conducting a performance test. 90 STAFF DRAFT  09/ 30/ 2005 ( 1) This paragraph ( j)( 1) may be used to demonstrate compliance with paragraph ( e), ( f), or ( g) of this section,

except when the treatment process is an open biological treatment process. Prepare a design evaluation and supporting documentation that addresses the operating characteristics of the treatment process and that is based on operation at a representative wastewater stream flow rate and a representative concentration under which it would be most difficult to demonstrate compliance. For closed biological treatment processes, the actual mass removal shall be determined by a mass balance over the unit. The mass flow rate of organic wastewater compound exiting the treatment process shall be the sum of the mass flow rate of organic wastewater compound in the wastewater stream exiting the biological treatment process and the mass flow rate of the vented gas stream exiting the control device. The mass flow rate entering the treatment process minus the mass flow rate exiting the process determines the actual mass removal.

( 2) This paragraph ( j)( 2) may be used to demonstrate compliance with paragraph ( e), ( f), or ( g) of this section.

Performance tests shall be conducted using test methods and procedures that meet the applicable requirements specified in § 60.783 of this subpart.

( 3) The provisions of paragraphs ( j)( 1) and ( 2) of this 91 STAFF DRAFT  09/ 30/ 2005 section do not apply to design steam strippers that meet the requirements of paragraph ( d) of this section.

( k) Residuals. For each residual removed from a Group 1 wastewater stream, the owner or operator shall control air organic wastewater compound emissions by complying with § 60.774 of this subpart and by complying with one of the provisions in paragraphs ( k)( 1) through ( 4) of this section.

( 1) Recycle the residual to a production process or sell the residual for the purpose of recycling. Once a residual is returned to a production process, the residual is no longer subject to this section.

( 2) Return the residual to the treatment process.

( 3) Treat the residual to destroy the total combined mass flow rate of organic wastewater compound by 99 percent or more,

as determined by the procedures specified in § 60.783( c) or ( d) of this subpart.

( 4) Comply with the requirements for RCRA treatment options specified in paragraph ( h) of this section.

( l) [ Reserved]

( m) 5 Mg exemption. For each plant site, up to 5 Mg of organic wastewater compound per year may be excluded from control. The 5 Mg shall be based on an annual average and calculated according to procedures in paragraphs ( m)( 1) and ( 2) 92 STAFF DRAFT  09/ 30/ 2005 of this section.

( 1) Annual average concentration. The annual average concentration shall be a flow weighted average representative of actual or anticipated operation of the CPU generating the process wastewater over a designated 12 month period. For flexible operation units, the owner or operator shall consider the anticipated production over the designated 12 month period and include all process wastewater streams generated by the process equipment during this period. The owner or operator is not required to determine the concentration of organic wastewater compounds that are not reasonably expected to be in the process.

Flow weighted annual average concentrations for organic wastewater compound means the total mass of organic wastewater compound occurring in the wastewater stream during the designated 12 month period divided by the total mass of the wastewater stream during the same designated 12 month period. The annual average concentration shall be determined for each process wastewater stream either at the point of determination, or downstream of the point of determination with adjustment for concentration changes made according to § 60.782 ( b)( 6) of this subpart. The procedures specified in § 60.782( b) of this subpart are considered acceptable for determining the annual average concentration. They may be used in combination, and no one 93 STAFF DRAFT  09/ 30/ 2005 procedure shall take precedence over another. If sampling, a minimum of three wastewater samples from each process wastewater stream shall be taken. Samples may be grab samples or composite samples.

( 2) Annual average flow rate. The owner or operator shall determine the annual average flow rate by measuring flow rate either at the point of determination for each process wastewater stream, or downstream of the point of determination with adjustment for flow rate changes made according to § 60.782( c)( 4)

of this subpart. The annual average flow rate for the process wastewater stream shall be representative of the actual or anticipated operation of the CPU generating the wastewater over the designated 12 month period.

§ 60.780 Standards  Control devices.

( a) For each control device used to comply with the provisions in § § 60.774, 60.775, and 60.779 of this subpart, the owner or operator shall operate and maintain the control device or combination of control devices in accordance with the requirements of paragraphs ( b) through ( g) of this section,

unless otherwise specified in this subpart.

( b) Whenever organic wastewater compound emissions are vented to a control device used to comply with the provisions of this subpart, such control device shall be operating. 94 STAFF DRAFT  09/ 30/ 2005 ( c) The control device shall be designed and operated in accordance with paragraph ( c)( 1), ( 2), ( 3), ( 4), or ( 5) of this section.

( 1) An enclosed combustion device ( including but not limited to a vapor incinerator, boiler, or process heater) shall meet the conditions in paragraph ( c)( 1)( i), ( ii), or ( iii) of this section, alone or in combination with other control devices.

If a boiler or process heater is used as the control device, then the vent stream shall be introduced into the flame zone of the boiler or process heater.

( i) Reduce the total organic compound emissions, less methane and ethane, or total organic wastewater compound emissions vented to the control device by 95 percent by weight or greater;

( ii) Achieve an outlet total organic compound concentration, less methane and ethane, or total organic wastewater compound concentration of 20 parts per million by volume or less on a dry basis corrected to 3 percent oxygen. The owner or operator shall use either Method 18 or 25A, 40 CFR part 60, appendix A, or any other method or data that has been validated according to the applicable procedures in Method 301,

40 CFR part 63, appendix A; or ( iii) Provide a minimum residence time of 0.5 seconds at a 95 STAFF DRAFT  09/ 30/ 2005 minimum temperature of 760

C.

( 2) A vapor recovery system ( including but not limited to a carbon adsorption system or condenser), alone or in combination with other control devices, shall reduce the total organic compound emissions, less methane and ethane, or total organic wastewater compound emissions vented to the control device by 95 percent by weight, or greater, or achieve an outlet total organic compound concentration, less methane and ethane, or total organic wastewater compound concentration of 20 parts per million by volume or less.

( 3) A flare shall comply with the requirements of § 60.18 of this part and § 60.783( j) of this subpart.

( 4) A scrubber, alone or in combination with other control devices, shall reduce the total organic compound emissions, less methane and ethane, or total organic wastewater compound emissions in such a manner that 95 weight percent is either removed or destroyed by chemical reaction with the scrubbing liquid, or achieve an outlet total organic compound concentration, less methane and ethane, or total organic wastewater compound concentration of 20 parts per million by volume or less, whichever is less stringent.

( 5) Any other control device used, alone or in combination with other control devices, shall reduce the total organic 96 STAFF DRAFT  09/ 30/ 2005 compound emissions, less methane and ethane, or total organic wastewater compound emissions vented to the control device by 95 percent by weight, or greater, or achieve an outlet total organic compound concentration of 20 parts per million by volume or less.

( d) Except as provided in paragraph ( d)( 4) of this section,

an owner or operator shall demonstrate that each control device or combination of control devices achieves the appropriate conditions specified in paragraph ( c) of this section by using one or more of the methods specified in paragraphs ( d)( 1),( 2),( 3) and( 4) of this section.

( 1) Performance tests conducted using the test methods and procedures specified in § 60.783( i) of this subpart for control devices other than flares; or ( 2) A design analysis that addresses the vent stream characteristics and control device operating parameters specified in paragraphs ( d)( 2)( i) through ( vii) of this section.

( i) For a thermal vapor incinerator, the design analysis shall consider the vent stream composition, constituent concentrations, and flow rate and shall establish the design minimum and average temperature in the combustion zone and the combustion zone residence time.

( ii) For a catalytic vapor incinerator, the design analysis 97 STAFF DRAFT  09/ 30/ 2005 shall consider the vent stream composition, constituent concentrations, and flow rate and shall establish the design minimum and average temperatures across the catalyst bed inlet and outlet.

( iii) For a boiler or process heater, the design analysis shall consider the vent stream composition, constituent concentrations, and flow rate; shall establish the design minimum and average flame zone temperatures and combustion zone residence time; and shall describe the method and location where the vent stream is introduced into the flame zone.

( iv) For a condenser, the design analysis shall consider the vent stream composition, constituent concentrations, flow rate, relative humidity, and temperature and shall establish the design outlet organic wastewater compound concentration level,

design average temperature of the condenser exhaust vent stream,

and the design average temperatures of the coolant fluid at the condenser inlet and outlet.

( v) For a carbon adsorption system that regenerates the carbon bed directly on site in the control device such as a fixed bed absorber, the design analysis shall consider the vent stream composition, constituent concentrations, flow rate,

relative humidity, and temperature and shall establish the design exhaust vent stream organic wastewater compound concentration 98 STAFF DRAFT  09/ 30/ 2005 level, adsorption cycle time, number and capacity of carbon beds,

type and working capacity of activated carbon used for carbon beds, design total regeneration stream mass or volumetric flow over the period of each complete carbon bed regeneration cycle,

design carbon bed temperature after regeneration, design carbon bed regeneration time, and design service life of carbon.

( vi) For a carbon adsorption system that does not regenerate the carbon bed directly on site in the control device such as a carbon canister, the design analysis shall consider the vent stream composition, constituent concentrations, mass or volumetric flow rate, relative humidity, and temperature and shall establish the design exhaust vent stream organic wastewater compound concentration level, capacity of carbon bed, type and working capacity of activated carbon used for carbon bed, and design carbon replacement interval based on the total carbon working capacity of the control device and affected facility operating schedule.

( vii) For a scrubber, the design analysis shall consider the vent stream composition; constituent concentrations;

liquidto vapor ratio; scrubbing liquid flow rate and concentrations;

temperature; and the reaction kinetics of the constituents with the scrubbing liquid. The design analysis shall establish the design exhaust vent stream organic wastewater compound 99 STAFF DRAFT  09/ 30/ 2005 concentration level and will include the additional information in paragraphs ( A) and ( B) of this section for trays and a packed column scrubber.

( A) Type and total number of theoretical and actual trays;

( B) Type and total surface area of packing for entire column, and for individual packed sections if column contains more than one packed section.

( 3) For flares, the compliance determination is specified in § 60.783( j) of this subpart.

( 4) An owner or operator using any control device specified in paragraphs ( d)( 4)( i) through ( iv) of this section is exempt from the requirements in paragraphs ( d)( 1) through ( 3) and ( e) of this section.

( i) A boiler or process heater with a design heat input capacity of 44 megawatts or greater.

( ii) A boiler or process heater into which the emission stream is introduced with the primary fuel.

( iii) A boiler or process heater burning hazardous waste for which the owner or operator:

( A) Has been issued a final permit under 40 CFR part 270 and complies with the requirements of 40 CFR part 266 subpart H,

or ( B) Has certified compliance with the interim status 100 STAFF DRAFT  09/ 30/ 2005 requirements of 40 CFR part 266, subpart H.

( iv) A hazardous waste incinerator for which the owner or operator has been issued a final permit under 40 CFR part 270 and complies with the requirements of 40 CFR part 264, subpart O, or has certified compliance with the interim status requirements of 40 CFR part 265, subpart O.

( e) The owner or operator of a control device that is used to comply with the provisions of this section shall monitor the control device in accordance with § 60.781 of this subpart.

( f) Each control device shall be visually inspected initially and annually thereafter, and at other times as requested by the Administrator. Except as provided in § 60.777 of this subpart, if gaps, cracks, tears, or holes are observed in ductwork, piping, or connections to covers and control devices during an inspection, a first effort to repair shall be made as soon as practical but no later than 5 calendar days after identification. Repair shall be completed no later than 15 calendar days after identification or discovery of the defect.

( g) The owner or operator using a carbon adsorption system shall operate and maintain the control device in accordance with the following requirements:

( 1) Following the initial startup of the control device,

all carbon in the control device shall be replaced in accordance 101 STAFF DRAFT  09/ 30/ 2005 with one of the following:

( i) At a predetermined time interval established by the control device design; or ( ii) According to a written procedure for testing carbon capacity on a regular basis and replacing the carbon at a frequency that assures that the removal performance required by the regulation is continuously achieved.

( 2) All carbon removed from the control device shall be managed in accordance with one of the following:

( i) Regenerated or reactivated in a thermal treatment unit that is permitted under 40 CFR part 265, subpart P of this chapter;

( ii) Incinerated by a process that is permitted under subpart 0 of this part; or ( iii) Burned in a boiler or industrial furnace that is permitted under 40 CFR part 266, subpart H of this chapter.

( iv) Managed and treated as a residual according to the provisions of § 60.779 ( k).

§ 60.781 Monitoring of operations.

( a) For each steam stripper used to comply with § 60.779 of this subpart, the owner or operator shall comply with the monitoring requirements specified in Table 7 to this subpart.

( b) For the owner or operator using a biological treatment 102 STAFF DRAFT  09/ 30/ 2005 unit to comply with § 60.779 of this subpart and who is complying with Table 7 to this subpart, the owner or operator shall request approval to monitor appropriate parameters that demonstrate proper operation of the biological treatment unit. The request shall be submitted according to the procedures specified in § 60.784( b) of this subpart.

( c) If the owner or operator elects to comply with Item 3 in Table 7 of this subpart, alternative monitoring parameters for treatment processes, the owner or operator shall request approval to monitor appropriate alternative parameters that demonstrate proper operation of the selected treatment process. The request shall be submitted according to the procedures specified in § 60.784( b) of this subpart.

( d) Except as provided in paragraphs ( d)( 4) and ( 5) of this section, for each control device used to comply with the requirements of § § 60.774, 60.775, 60.779, and 60.780 of this subpart, the owner or operator shall comply with the requirements in § 60.780( d) of this subpart, and with the requirements specified in paragraph ( d)( 1), ( 2), or ( 3) of this section,

unless otherwise specified in this subpart.

( 1) The owner or operator shall comply with the monitoring requirements for control devices specified in Table 8 of this subpart; or 103 STAFF DRAFT  09/ 30/ 2005 ( 2) The owner or operator shall use an organic monitoring device installed at the outlet of the control device and equipped with a continuous recorder. Continuous recorder is defined in § 60.771 of this subpart; or ( 3) The owner or operator may request approval to monitor parameters other than those specified in paragraphs ( d)( 1) and ( 2) of this section. The request shall be submitted according to the procedures specified in § 60.784( b) of this subpart.

( 4) For a boiler or process heater in which all vent streams are introduced with primary fuel, the owner or operator shall comply with the requirements in § 60.780( d) of this subpart,

but the owner or operator is exempt from the monitoring requirements specified in paragraphs ( d)( 1) through ( 3) of this section.

( 5) For a boiler or process heater with a design heat input capacity of 44 megawatts or greater, the owner or operator shall comply with the requirements in § 60.780( d) of this subpart, but the owner or operator is exempt from the monitoring requirements specified in paragraphs ( d)( 1) through ( 3) of this section.

( e) For each parameter monitored in accordance with paragraph ( b), ( c), or ( d) of this section, the owner or operator shall establish a value that indicates proper operation of the treatment process or control device. In order to establish the 104 STAFF DRAFT  09/ 30/ 2005 value, the owner or operator shall comply with the requirements specified in § § 60.784( c)( 7)( ii)( A) and ( c)( 8)( ii) of this subpart.

( f) Monitoring equipment shall be installed, calibrated,

and maintained according to the manufacturer's specifications or other written procedures that provide adequate assurance that the equipment would reasonably be expected to monitor accurately.

( g) Each owner or operator of a treatment process or control device subject to the monitoring provisions of this subpart shall operate the treatment process or control device such that monitored parameters are below the maximum or above the minimum established value required to be monitored under paragraphs ( b), ( c), and ( d) of this section and established under paragraph ( e) of this section.

( h) Monitoring data under this subpart are directly enforceable when determining compliance with the required operating limits for the monitored control devices. For each excursion, except for excused excursions as defined in § 60.784( d)( 4), the owner or operator shall be deemed to have failed to have applied the control in a manner that achieves the required operating limits. Failure to achieve the required operating limits is a violation of this standard.

§ 60.782 Process wastewater provisions  Test methods and 105 STAFF DRAFT  09/ 30/ 2005 procedures for determining applicability and Group 1 and Group 2 determinations ( determining which process wastewater streams require control).

( a) Procedures to determine applicability. An owner or operator shall comply with paragraph ( a)( 1) or ( 2) of this section for each wastewater stream to determine which wastewater streams require control for organic wastewater compound. The owner or operator may use a combination of the approaches in paragraphs ( a)( 1) and ( 2) of this section for different wastewater streams generated at the affected facility.

( 1) Determine Group 1 or Group 2 status. Determine whether a wastewater stream is a Group 1 or Group 2 wastewater stream in accordance with paragraphs ( b) and ( c) of this section.

( 2) Designate as Group 1. An owner or operator may designate as a Group 1 wastewater stream a single wastewater stream or a mixture of wastewater streams. The owner or operator is not required to determine the concentration or flow rate for each designated Group 1 wastewater stream for the purposes of this section.

( b) Procedures to establish concentrations, when determining Group status under paragraph ( a)( 1) of this section.

An owner or operator who elects to comply with the requirements of paragraph ( a)( 1) of this section shall determine the annual 106 STAFF DRAFT  09/ 30/ 2005 average concentration for organic wastewater compound according to paragraph ( b)( 1) of this section. The annual average concentration shall be a flow weighted average representative of actual or anticipated operation of the DCPU generating the wastewater over a designated 12 month period. For flexible operation units, the owner or operator shall consider the anticipated production over the designated 12 month period and include all wastewater streams generated by the process equipment during this period. The owner or operator is not required to determine the concentration of organic wastewater compound that are not reasonably expected to be in the process or in the resulting wastewater stream.

( 1) General. An owner or operator who elects to comply with the requirements of paragraph ( a)( 1) of this section shall determine the flow weighted annual average concentration for organic wastewater compound and the range of concentrations represented by the flow weighted annual average concentration.

For the purposes of this section, the term concentration, whether concentration is used alone or with other terms, may be adjusted by the compound specific Fm factors. Compound specific Fm factors shall be determined as specified in appendix J to this part. Flow weighted annual average concentration for organic wastewater compound means the total mass of organic wastewater 107 STAFF DRAFT  09/ 30/ 2005 compound occurring in the wastewater stream during the designated 12 month period divided by the total mass of the wastewater stream during the same designated 12 month period. The annual average concentration shall be determined for each wastewater stream either at the point of determination, or downstream of the point of determination with adjustment for concentration changes made according to paragraph ( b)( 6) of this section. The procedures specified in paragraphs ( b)( 3), ( 4), and ( 5) of this section are considered acceptable procedures for determining the annual average concentration. They may be used in combination,

and no one procedure shall take precedence over another.

( 2) [ Reserved]

( 3) Process knowledge of the wastewater. Where process knowledge is used to determine the annual average concentration,

the owner or operator shall provide sufficient information to document the annual average concentration for wastewater streams determined to be Group 2 wastewater streams as specified in § 60.785( g) of this subpart. Documentation to determine the annual average concentration is not required for Group 1 streams.

Examples of acceptable documentation include material balances,

records of chemical purchases, process stoichiometry, or previous test results. If test data are used, the owner or operator shall provide documentation describing the testing protocol and the 108 STAFF DRAFT  09/ 30/ 2005 means by which any losses of volatile compounds during sampling,

and the bias and accuracy of the analytical method, were accounted for in the determination.

( 4) Bench scale or pilot scale test data. Where benchscale or pilot scale test data are used to determine the annual average concentration, the owner or operator shall provide sufficient information to document that the data are representative of the actual annual average concentration, or are reliably indicative of another relevant characteristic of the wastewater stream that could be used to predict the annual average concentration. For concentration data, the owner or operator shall also provide documentation describing the testing protocol, and the means by which any losses of volatile compounds during sampling, and the bias and accuracy of the analytical method, were accounted for in the determination of annual average concentration.

( 5) Test data from sampling at the point of determination or at a location downstream of the point of determination. Where an owner or operator elects to comply with paragraph ( a)( 1) of this section by measuring the concentration for organic wastewater compound, the owner or operator shall comply with the requirements of this paragraph ( b)( 5). For each wastewater stream, measurements shall be made either at the point of 109 STAFF DRAFT  09/ 30/ 2005 determination, or downstream of the point of determination with adjustment for concentration changes made according to paragraph ( b)( 6) of this section. A minimum of three samples from each wastewater stream shall be taken. Samples may be grab samples or composite samples.

( i) Methods. The owner or operator shall use any of the methods specified in paragraphs ( b)( 5)( i)( A) through ( G) of this section.

( A) Method 25D. Use procedures specified in Method 25D, 40 CFR part 60, appendix A.

( B) Method 305. Use procedures specified in Method 305, 40 CFR part 63, appendix A.

( C) Methods 624 and 625. Use procedures specified in Methods 624 and 625, 40 CFR part 136, appendix A and comply with the sampling protocol requirements specified in paragraph ( b)( 5)( ii) of this section. If these methods are used to analyze one or more compounds that are not on the method's published list of approved compounds, the Alternative Test Procedure specified in 40 CFR part 136.4 and 136.5 shall be followed. For Method 625, make corrections to the compounds for which the analysis is being conducted. The corrections shall be based on the accuracy as recovery factors in Table 7 of the method.

( D) Method 1624 and Method 1625. Use procedures specified 110 STAFF DRAFT  09/ 30/ 2005 in Method 1624 and Method 1625, 40 CFR part 136, appendix A and comply with the requirements specified in paragraph ( b)( 5)( ii) of this section. If these methods are used to analyze one or more compounds that are not on the method's published list of approved compounds, the Alternative Test Procedure specified in 40 CFR part 136.4 and 136.5 shall be followed.

( E) Method 8260 and Method 8270. Use procedures specified in Method 8260 and Method 8270 in " Test Methods for Evaluating Solid Waste, Physical/ Chemical Methods," EPA Publication No. SW 846, Third Edition, September 1986, as amended by Update I, November 15, 1992. As an alternative, an owner or operator may use any more recent, updated versions of Method 8260 and Method 8270 approved by EPA. When using Method 8260 or Method 8270, the owner or operator must maintain a formal quality assurance program consistent with Section 8 of Method 8260 or with Method 8270, respectively. The quality assurance program must include the following elements related to measuring the concentrations of organic wastewater compounds:

( 1) Documentation of site specific procedures to minimize the loss of compounds due to volatilization, biodegradation,

reaction, or sorption during the sample collection, storage, and preparation steps.

( 2) Documentation of specific quality assurance procedures 111 STAFF DRAFT  09/ 30/ 2005 followed during sampling, sample preparation, sample introduction, and analysis.

( 3) Measurement of the average accuracy and precision of the specific procedures, including field duplicates and field spiking of the off site material source before or during sampling with compounds having similar chemical characteristics to the target analytes.

( F) Other EPA method( s). Use procedures specified in the method and comply with the requirements specified in paragraph ( b)( 5)( ii) and either paragraph ( b)( 5)( iii)( A) or ( B) of this section.

( G) Method( s) other than EPA method. Use procedures specified in the method and comply with the requirements specified in paragraphs ( b)( 5)( ii) and ( iii)( A) of this section.

( ii) Sampling plan. The owner or operator who is expressly referred to this paragraph ( b)( 5)( ii) by provisions of this subpart shall prepare a sampling plan, as specified in § 60.785( g)( 3) of this subpart. Wastewater samples shall be collected using sampling procedures which minimize loss of organic compounds during sample collection and analysis and maintain sample integrity.

( iii) Validation of methods. The owner or operator shall validate EPA methods other than Methods 25D, 305, 624, 625, 1624, 112 STAFF DRAFT  09/ 30/ 2005 1625, 8260, and 8270 using the procedures specified in paragraph ( b)( 5)( iii)( A) or ( B) of this section. The owner or operator shall validate other methods as specified in paragraph ( b)( 5)( iii)( A) of this section.

( A) Validation of EPA methods and other methods. The method used to measure organic wastewater compound concentrations in the wastewater shall be validated according to section 5.1 or 5.3, and the corresponding calculations in section 6.1 or 6.3, of Method 301 of appendix A to this part. The data are acceptable if they meet the criteria specified in section 6.1.5 or 6.3.3 of Method 301 of appendix A to this part. If correction is required under section 6.3.3 of Method 301 of appendix A to 40 CFR part 63, the data are acceptable if the correction factor is within the range of 0.7 to 1.30. Other sections of Method 301 of appendix A to 40 CFR part 63 are not required. The concentrations of the individual organic wastewater compounds measured in the water may be corrected to the concentrations if they had been measured by Method 25D of appendix A to this part,

by multiplying each concentration by the compound specific Fm factor. Compound specific Fm factors shall be determined as specified in appendix J to this part.

( B) Validation for EPA methods. Follow the procedures as specified in " Alternative Validation Procedure for EPA Waste and 113 STAFF DRAFT  09/ 30/ 2005 Wastewater Methods" 40 CFR part 63, appendix D.

( iv) Calculations of average concentration. For methods that speciate, the average concentration of organic wastewater compound shall be calculated by first summing the concentration of the individual compounds to obtain a total organic wastewater compound concentration for the sample, adding the sample totals,

and then dividing by the number of samples in the run to obtain the sample average for the run. If the method used does not speciate the compounds, the sample results should be added and this total divided by the number of samples in the run to obtain the sample average for the run.

( 6) Adjustment for concentrations determined downstream of the point of determination. The owner or operator shall make corrections to the annual average concentration when the concentration is determined downstream of the point of determination at a location where: two or more wastewater streams have been mixed; one or more wastewater streams have been treated; or losses to the atmosphere have occurred. The owner or operator shall make the adjustments either to the individual data points or to the final annual average concentration.

( c) Procedures to determine flow rate, when evaluating Group status under paragraph ( a)( 1) of this section. An owner or operator who elects to comply with paragraph ( a)( 1) of this 114 STAFF DRAFT  09/ 30/ 2005 section shall determine the annual average flow rate of the wastewater stream and the range of flow rates represented by the annual average flow rate. The annual average flow rate shall be determined either at the point of determination for each wastewater stream, or downstream of the point of determination with adjustment for flow rate changes made according to paragraph ( c)( 4) of this section. These procedures may be used in combination for different wastewater streams at the affected facility. The annual average flow rate for the wastewater stream shall be representative of actual or anticipated operation of the DCPU generating the wastewater over a designated 12 month period.

The owner or operator shall consider the annual wastewater volume generated by the DCPU. If the DCPU is a flexible operation unit,

the owner or operator shall consider all anticipated production in the process equipment over the designated 12 month period.

The procedures specified in paragraphs ( c)( 1), ( 2), and ( 3) of this section are considered acceptable procedures for determining the flow rate. They may be used in combination, and no one procedure shall take precedence over another.

( 1) Process knowledge of the wastewater. The owner or operator may use process knowledge of the wastewater stream and/ or the process to determine the annual average flow rate.

The owner or operator shall use the maximum expected annual 115 STAFF DRAFT  09/ 30/ 2005 average production capacity of the process unit, knowledge of the process, and/ or mass balance information to either estimate the annual average wastewater flow rate directly or estimate the total annual wastewater volume and then divide total volume by 525,600 minutes in a year. For flexible batch operations, annual wastewater volume may be determined based on the maximum number of batches per year, estimated by dividng 8760 hours per year by the time required in hours for the piece of equipment in the batch train that is used the longest for the batch cycle. Where process knowledge is used to determine the annual average flow rate, the owner or operator shall provide sufficient information to document the flow rate for wastewater streams determined to be Group 2 wastewater streams as specified in § 60.785( g) of this subpart. Documentation to determine the annual average flow rate is not required for Group 1 streams.

( 2) Historical records. The owner or operator may use historical records to determine the annual average flow rate.

Derive the highest annual average flow rate of wastewater from historical records representing the most recent 5 years of operation or, if the process unit has been in service for less than 5 years but at least 1 year, from historical records representing the total operating life of the process unit. Where historical records are used to determine the annual average flow 116 STAFF DRAFT  09/ 30/ 2005 rate, the owner or operator shall provide sufficient information to document the flow rate for wastewater streams determined to be Group 2 wastewater streams. Documentation to determine the annual average flow rate is not required for Group 1 streams.

( 3) Measurements of flow rate. Where an owner or operator elects to comply with paragraph ( a)( 1) of this section by measuring the flow rate, the owner or operator shall comply with the requirements of this paragraph ( c)( 3). Measurements shall be made at the point of determination, or at a location downstream of the point of determination with adjustments for flow rate changes made according to paragraph ( c)( 4) of this section.

Where measurement data are used to determine the annual average flow rate, the owner or operator shall provide sufficient information to document the flow rate for wastewater streams determined to be Group 2 wastewater streams. Documentation to determine the annual average flow rate is not required for Group 1 streams.

( 4) Adjustment for flow rates determined downstream of the point of determination. The owner or operator shall make corrections to the annual average flow rate of a wastewater stream when it is determined downstream of the point of determination at a location where two or more wastewater streams have been mixed or one or more wastewater streams have been 117 STAFF DRAFT  09/ 30/ 2005 treated. The owner or operator shall make corrections for such changes in the annual average flow rate.

§ 60.783 Process wastewater provisions  Test methods and procedures to determine compliance.

( a) General. This section specifies the procedures for performance tests that are conducted to demonstrate compliance of a treatment process or a control device with the control requirements specified in § 60.779 of this subpart. Owners or operators conducting a design evaluation shall comply with the requirements of either paragraph ( a)( 1) or ( 2) of this section.

Owners or operators conducting a performance test shall comply with the applicable requirements in paragraphs ( a) through ( i) of this section.

( 1) Performance tests and design evaluations for treatment processes. If the design steam stripper option ( § 60.779( d) of this subpart) or RCRA option ( § 60.779( h) of this subpart) is selected to comply with § 60.779 of this subpart, neither a design evaluation nor a performance test is required. For any other non biological treatment process, the owner or operator shall conduct either a design evaluation as specified in § 60.779( j) of this subpart, or a performance test as specified in this section.

For closed biological treatment processes, the owner or operator shall conduct either a design evaluation as specified in 118 STAFF DRAFT  09/ 30/ 2005 § 60.779( j) of this subpart, or a performance test as specified in this section. For each open biological treatment process, the owner or operator shall conduct a performance test as specified in this section. [ Note: Some open biological treatment processes may not require a performance test. Refer to paragraph ( h) of this section to determine whether the biological treatment process meets the criteria that exempt the owner or operator from conducting a performance test.]

( 2) Performance tests and design evaluations for control devices. The owner or operator shall conduct either a design evaluation as specified in § 60.780( d)( 2) of this subpart, or a performance test as specified in paragraph ( i) of this section for control devices other than flares and paragraph ( j) of this section for flares.

( 3) Performance tests and compliance determinations shall be conducted according to the applicable sections of this subpart.

( 4) The owner or operator shall notify the Administrator of the intention to conduct a performance test as specified in § 60.784( h)( 1) of this subpart.

( 5) Performance tests shall be conducted according to the provisions of paragraphs ( a)( 5)( i) and ( ii) of this section.

( i) The owner or operator shall conduct tests and reduce 119 STAFF DRAFT  09/ 30/ 2005 data in accordance with the test methods and procedures set forth in this subpart, unless the Administrator:

( A) Specifies or approves, in specific cases, the use of a test method with minor changes in methodology;

( B) Approves the use of an alternative test method, the results of which the Administrator has determined to be adequate for indicating whether the facility is in compliance;

( C) Approves shorter sampling times and smaller sample volumes when necessitated by process variables or other factors;

or ( D) Waives the requirements for performance tests because the owner or operator has demonstrated by other means to the Administrator's satisfaction that the facility is in compliance.

( ii) The Administrator may require the owner or operator to conduct performance tests at any time when the action is authorized by section 114 of the Act. Nothing in this subpart shall be construed to abrogate the Administrator's authority to require testing under section 114 of the Act.

( 6) Data shall be reduced in accordance with EPA approved methods specified in this subpart or, if other test methods are used, the data and methods shall be validated according to the protocol in Method 301 of appendix A of 40 CFR part 63.

( 7) Performance tests may be waived with approval of the 120 STAFF DRAFT  09/ 30/ 2005 Administrator as specified in § 60.784( h)( 2) of this subpart.

( 8) Representative process unit operating conditions.

Compliance shall be demonstrated under representative operating conditions. Performance tests shall be conducted under such conditions as the Administrator specifies to the owner or operator based on representative performance ( i. e., performance based on normal operating conditions) of the affected facility.

Operations during periods of startup, shutdown, or malfunction shall not constitute representative conditions for the purpose of a performance test, nor shall emissions in excess of the standards in this subpart during periods of startup, shutdown, or malfunction be considered a violation of the standards. The owner or operator shall record the process information that is necessary to document operating conditions during the test, as specified in § 60.784( c)( 10) and ( d)( 6) of this subpart. Upon request, the owner or operator shall make available to the Administrator such records as may be necessary to determine the conditions of performance tests.

( 9) Representative treatment process or control device operating conditions. During the performance test, the owner or operator shall operate the process or control device such that the monitored control or recovery device parameters are at their maximum or minimum values, whichever results in better emission 121 STAFF DRAFT  09/ 30/ 2005 reduction. Performance tests shall be conducted when the treatment process or control device is operating at a representative inlet flow rate and concentration. If the treatment process or control device will be operating at several different sets of representative operating conditions, the owner or operator shall comply with paragraphs ( a)( 9)( i) and ( ii) of this section.

( i) Range of operating conditions. If the treatment process or control device will be operated at several different sets of representative operating conditions, performance testing over the entire range is not required. In such cases, the performance test results shall be supplemented with modeling and/ or engineering assessments to demonstrate performance over the operating range.

( ii) Consideration of residence time. If concentration and/ or flow rate to the treatment process or control device are not relatively constant ( i. e., comparison of inlet and outlet data will not be representative of performance), the owner or operator shall consider residence time when determining concentration and flow rate.

( 10) Testing equipment and facilities. All testing equipment shall be prepared and installed as specified in the applicable test methods, or as approved by the Administrator. 122 STAFF DRAFT  09/ 30/ 2005 The owner or operator of each new facility and, at the request of the Administrator, the owner or operator of an existing facility,

shall provide performance testing facilities as follows:

( i) Sampling ports adequate for test methods applicable to the source, including:

( A) Constructing the air pollution control system such that volumetric flow rates and pollutant emission rates can be accurately determined by applicable test methods and procedures;

and ( B) Providing a stack or duct free of cyclonic flow during performance tests, as demonstrated by applicable test methods and procedures;

( ii) Safe sampling platform( s);

( iii) Safe access to sampling platform( s);

( iv) Utilities for sampling and testing equipment; and ( v) Any other facilities that the Administrator deems necessary for safe and adequate testing of the facility.

( 11) Compounds not required to be considered in performance tests or design evaluations. This paragraph ( a)( 11) applies only when test methods that speciate compounds are used. Compounds that meet the requirements specified in paragraph ( a)( 11)( i),

( ii), or ( iii) of this section are not required to be included in the performance test. 123 STAFF DRAFT  09/ 30/ 2005 ( i) Compounds not used or produced by the chemical process unit; or ( ii) Compounds with concentrations at the point of determination that are below 1 ppmw; or ( iii) Compounds with concentrations at the point of determination that are below the lower detection limit where the lower detection limit is greater than 1 ppmw. The method shall be an analytical method for wastewater which has that compound as a target analyte.

( 12) Treatment using a series of treatment processes. In all cases where the wastewater provisions in this subpart allow or require the use of a treatment process to comply with emission limitations, the owner or operator may use multiple treatment processes. The owner or operator complying with the requirements of § 60.779( a)( 7)( i) of this subpart, when wastewater is conveyed by hard piping, shall comply with either paragraph ( a)( 12)( i) or ( ii) of this section. The owner or operator complying with the requirements of § 60.779( a)( 7)( ii) of this subpart shall comply with the requirements of paragraph ( a)( 12)( ii) of this section.

( i) The owner or operator shall conduct the performance test across each series of treatment processes. For each series of treatment processes, inlet concentration and flow rate shall be measured either where the wastewater stream enters the first 124 STAFF DRAFT  09/ 30/ 2005 treatment process in a series of treatment processes, or prior to the first treatment process as specified in paragraph ( a)( 14) of this section. For each series of treatment processes, outlet concentration and flow rate shall be measured where the wastewater stream exits the last treatment process in the series of treatment processes, except when the last treatment process is an open or a closed aerobic biological treatment process demonstrating compliance by using the procedures in paragraph ( f)

or ( g) of this section. When the last treatment process is either an open or a closed aerobic biological treatment process demonstrating compliance by using the procedures in paragraph ( f)

or ( g) of this section, inlet and outlet concentrations and flow rates shall be measured as provided in paragraphs ( a)( 12)( i)( A)

and ( B) of this section. The mass flow rates removed or destroyed by the series of treatment processes and by the biological treatment process are all used to calculate actual mass removal ( AMR) as specified in paragraph ( f)( 5)( ii) of this section.

( A) The inlet and outlet to the series of treatment processes prior to the biological treatment process are the points at which the wastewater enters the first treatment process and exits the last treatment process in the series, respectively,

except as provided in paragraph ( a)( 14)( ii) of this section. 125 STAFF DRAFT  09/ 30/ 2005 ( B) The inlet to the biological treatment process shall be the point at which the wastewater enters the biological treatment process or the outlet from the series of treatment processes identified in paragraph ( a)( 12)( i)( A) of this section, except as provided in paragraph ( a)( 14)( ii) of this section.

( ii) The owner or operator shall conduct the performance test across each treatment process in the series of treatment processes. The mass flow rate removed or destroyed by each treatment process shall be added together to determine whether compliance has been demonstrated using paragraphs ( c), ( d), ( e),

( f), and ( g) of this section, as applicable. If a biological treatment process is one of the treatment processes in the series of treatment processes, the inlet to the biological treatment process shall be the point at which the wastewater enters the biological treatment process or the inlet to the equalization tank if all the criteria of paragraph ( a)( 14)( ii) of this section are met.

( 13) When using a biological treatment process to comply with § 60.779 of this subpart, the owner or operator may elect to calculate the AMR using a subset of organic wastewater compounds determined at the point of determination or downstream of the point of determination with adjustment for concentration and flow rate changes made according to § 60.782( b)( 6) and ( c)( 4), 126 STAFF DRAFT  09/ 30/ 2005 respectively, of this subpart. All organic wastewater compounds measured to determine the RMR, except as provided by paragraph ( a)( 11) of this section, shall be included in the RMR calculation.

( 14) The owner or operator determining the inlet for purposes of demonstrating compliance using paragraph ( e), ( f),

or ( g) of this section may elect to comply with paragraph ( a)( 14)( i) or ( ii) of this section.

( i) When wastewater is conveyed exclusively by hard piping from the point of determination to a treatment process that is either the only treatment process or the first in a series of treatment processes ( i. e., no treatment processes or other waste management units are used upstream of this treatment process to store, handle, or convey the wastewater), the inlet to the treatment process shall be at any location from the point of determination to where the wastewater stream enters the treatment process. When samples are taken upstream of the treatment process and before wastewater streams have converged, the owner or operator shall ensure that the mass flow rate of all Group 1 wastewater streams is accounted for when using § 60.779( e) or ( f)

of this subpart to comply and that the mass flow rate of all Group 1 and Group 2 wastewater streams is accounted for when using § 60.779( g) of this subpart to comply, except as provided in 127 STAFF DRAFT  09/ 30/ 2005 paragraph ( a)( 11) of this section.

( ii) The owner or operator may consider the inlet to the equalization tank as the inlet to the biological treatment process if all the criteria in paragraphs ( a)( 14)( ii)( A) through ( C) of this section are met. The outlet from the series of treatment processes prior to the biological treatment process is the point at which the wastewater exits the last treatment process in the series prior to the equalization tank, if the equalization tank and biological treatment process are part of a series of treatment processes. The owner or operator shall ensure that the mass flow rate of all Group 1 wastewater streams is accounted for when using § 60.779( e) or ( f) of this subpart to comply and that the mass flow rate of all Group 1 and Group 2 wastewater streams is accounted for when using § 60.779( g) of this subpart to comply, except as provided in paragraph ( a)( 11) of this section.

( A) The wastewater is conveyed by hard piping from either the last previous treatment process or the point of determination to the equalization tank.

( B) The wastewater is conveyed from the equalization tank exclusively by hard piping to the biological treatment process and no treatment processes or other waste management units are used to store, handle, or convey the wastewater between the 128 STAFF DRAFT  09/ 30/ 2005 equalization tank and the biological treatment process.

( C) The equalization tank is equipped with a fixed roof and a closed vent system that routes organic wastewater compound emissions to a control device that meets the requirements of 40 CFR 63.133( a)( 2)( i) and ( b)( 1) through ( 4).

( b) [ Reserved]

( c) Non combustion, non biological treatment process:

percent mass removal/ destruction option. This paragraph ( c)

applies to performance tests that are conducted to demonstrate compliance of a non combustion, non biological treatment process with the percent mass removal limits specified in § 60.779( e)( 1),

( 2), and ( 3) of this subpart for organic wastewater compound.

This paragaraph can also apply to the residual treatment requirements specified in § 60.779 ( k)( 3). When demonstrating compliance with § 60.779( e)( 1) or § 60.779 ( k)( 3) of this subpart,

the owner or operator shall comply with the requirements specified in paragraphs ( c)( 1) through ( 6) of this section. When demonstrating compliance with § 60.779( e)( 2) of this subpart, the owner or operator shall comply with the requirements specified in paragraphs ( c)( 1), ( 2), ( 3), and ( 6) of this section. When demonstrating compliance with § 60.779( e)( 3) of this subpart, the owner or operator shall comply with the requirements specified in paragraphs ( c)( 1), ( 2), ( 3), ( 4), and ( 6) of this section for 129 STAFF DRAFT  09/ 30/ 2005 each of the following organic wastewater compounds: methanol, 1

butanol, and methyl ethyl ketone.

( 1) Concentration. The concentration of organic wastewater compound entering and exiting the treatment process shall be determined as provided in this paragraph ( c)( 1). Wastewater samples shall be collected using sampling procedures which minimize loss of organic compounds during sample collection and analysis and maintain sample integrity per § 60.782( b)( 5)( ii) of this subpart. The method shall be an analytical method for wastewater which has that compound as a target analyte. Samples may be grab samples or composite samples. Samples shall be taken at approximately equally spaced time intervals over a 1 hour period. Each 1 hour period constitutes a run, and the performance test shall consist of a minimum of three runs.

( 2) Flow rate. The flow rate of the entering and exiting wastewater streams shall be determined using inlet and outlet flow measurement devices, respectively. Where the outlet flow is not greater than the inlet flow, a single flow measurement device shall be used, and may be used at either the inlet or outlet. Flow rate measurements shall be taken at the same time as the concentration measurements.

( 3) Calculation of mass flow rate for non combustion,

nonbiological treatment processes. 130 STAFF DRAFT  09/ 30/ 2005 ( i) When complying with either § 60.779( e)( 1) or ( 2) of this subpart, use Equations 6 and 7, respectively, in this paragraph to calculate the mass flow rate of organic wastewater compound entering and exiting the treatment process.

[ Equation 6] QMW Q a ak T a k k p = 6 p * 10 C   ( * ) , ,, =

1 [ Equation 7] QMW p Q b bk T b k k p = 6 10 C   * ( * ) , ,, =

1 Where:

QMWa, QMWb = Mass flow rate of organic wastewater compound, average of all runs, in wastewater entering ( QMWa) or exiting ( QMWb) the treatment process, kg/ hr.

  = Density of the wastewater, kilograms per cubic meter.

Qa, k, Qb, k = Volumetric flow rate of wastewater entering ( Qa, k) or exiting ( Qb, k) the treatment process during each run k, cubic meters per hour.

CT, a, k,

CT, b, k. = Total concentration of organic wastewater 131 STAFF DRAFT  09/ 30/ 2005 compound in wastewater entering ( CT, a, k) or exiting ( CT, b, k) the treatment process during each run k, ppmw. Total concentration shall be based on speciated method( s) if using § 60.779( e)( 1) of this subpart to comply and shall be based on either speciated or nonspeciated methods if using § 60.779( e)( 2) of this subpart to comply.

p = Number of runs.

k = Identifier for a run.

106 = Conversion factor, mg/ kg.

( ii) When complying with § 60.779( e)( 3) of this subpart, use Equations 8 and 9, respectively, in this paragraph to calculate the mass flow rate of each compound, i. e., methanol, 1 butanol,

and methyl ethyl ketone, entering and exiting the treatment process.

[ Equation 8] QMWa = 6 a, k T, a, , k p * 10 ( Q * C )   [ Equation 9] QMW Q b bk T b k = 6 p * 10 C   ( * ) , ,,

Where: 132 STAFF DRAFT  09/ 30/ 2005 QMWa, QMWb = Mass flow rate of a compound, average of all runs, in wastewater entering ( QMWa) or exiting ( QMWb) the treatment process, kg/ hr.

  = Density of the wastewater, kilograms per cubic meter.

Qa, k, Qb, k = Volumetric flow rate of wastewater entering ( Qa, k) or exiting ( Qb, k) the treatment process during each run k, cubic meters per hour.

CT, a, k, CT, b, k = Concentration of a compound in wastewater entering ( CT, a, k) or exiting ( CT, b, k) the treatment process during each run k, ppmw.

Concentration shall be based on speciated method( s).

p = Number of runs.

k = Identifier for a run.

106 = Conversion factor, mg/ kg.

( 4) Percent removal calculation for mass flow rate. The percent mass removal across the treatment process shall be calculated using Equation 10 of this section if complying with § 60.779( e)( 1) of this subpart. 133 STAFF DRAFT  09/ 30/ 2005 [ Equation 10] E = QMW  QMW QMW 100 a b a *

Where:

E = Removal or destruction efficiency of the treatment process, percent.

QMWa, QMWb= Mass flow rate of organic wastewater compound in wastewater entering ( QMWa) and exiting ( QMWb) the treatment process, kg/ hr ( as calculated using Equations 6 and 8, or Equations 8 and 9).

( 5) Calculation of flow weighted average of Fr values. If complying with § 60.779( e)( 1) of this subpart, use Equation 15 in paragraph ( d)( 8) of this section to calculate the flow weighted average of the Fr values. When the term " combustion" is used in Equation 15, the term " treatment process" shall be used for the purposes of this paragraph. Follow the procedures in § 60.778 of this subpart to develop a stream specific list of organic wastewater compound. Follow the procedures in appendix J to this part to determine Fr values.

( 6) Compare mass removal efficiency to required efficiency. 134 STAFF DRAFT  09/ 30/ 2005 Compare the mass removal efficiency ( calculated in Equation 10)

to the required efficiency as specified in § 60.779( e) of this subpart. If complying with § 60.779( e)( 1) of this subpart,

compliance is demonstrated if the mass removal efficiency is greater than or equal to the flow weighted average of the Fr values calculated in Equation 15. If complying with § 60.779( e)( 2) of this subpart, compliance is demonstrated if the mass removal efficiency is 95 percent or greater and outlet concentration is less than 50 ppmw. If complying with § 60.779( e)( 3) of this subpart, compliance is demonstrated if the mass removal for methanol is greater than or equal to 31 percent,

the mass removal for 1 butanol is greater than or equal to 82 percent, and the mass removal for methyl ethyl ketone is greater than or equal to 95 percent.

( d) Combustion treatment processes: percent mass removal/ destruction option. This paragraph ( d) applies to performance tests that are conducted to demonstrate compliance of a combustion treatment process with the percent mass destruction limits specified in § 60.779( e)( 1) of this subpart for organic wastewater compound. The owner or operator shall comply with the requirements specified in paragraphs ( d)( 1) through ( 10) of this section.

( 1) Concentration in wastewater stream entering the 135 STAFF DRAFT  09/ 30/ 2005 combustion treatment process. The concentration of organic wastewater compound entering the treatment process shall be determined as provided in this paragraph ( d)( 1). Wastewater samples shall be collected using sampling procedures which minimize loss of organic compounds during sample collection and analysis and maintain sample integrity per § 60.782( b)( 5)( ii) of this subpart. Samples may be grab samples or composite samples.

Samples shall be taken at approximately equally spaced time intervals over a 1 hour period. Each 1 hour period constitutes a run, and the performance test shall consist of a minimum of three runs. If Method 25D is used to determine concentration of organic wastewater compound, only the total carbon concentration and not the chloride concentration shall be reported.

( 2) Flow rate of wastewater entering the combustion treatment process. The flow rate of the wastewater stream entering the combustion treatment process shall be determined using an inlet flow meter. Flow rate measurements shall be taken at the same time as the concentration measurements.

( 3) Calculation of mass flow rate in wastewater stream entering combustion treatment processes. The mass flow rate of organic wastewater compound entering the combustion treatment process is calculated using Equation 11 of this section. 136 STAFF DRAFT  09/ 30/ 2005 [ Equation 11] QMW Q a Ta k k p a k = 6 p * 10 C   ( * ) , , ,

=

1 Where:

QMWa = Mass flow rate of organic wastewater compound entering the combustion unit, kg/ hr.

  = Density of the wastewater stream, kilograms per cubic meter.

Qa, k = Volumetric flow rate of wastewater entering the combustion unit during run k, cubic meters per hour.

CT, a, k = Total concentration of organic wastewater compound in the wastewater stream entering the combustion unit during run k, ppmw.

p = Number of runs.

k = Identifier for a run.

( 4) Concentration in vented gas stream exiting the combustion treatment process. The concentration of organic wastewater compound exiting the combustion treatment process in any vented gas stream shall be determined as provided in this paragraph ( d)( 4). Samples may be grab samples or composite samples. Samples shall be taken at approximately equally spaced 137 STAFF DRAFT  09/ 30/ 2005 time intervals over a 1 hour period. Each 1 hour period constitutes a run, and the performance test shall consist of a minimum of three runs. Concentration measurements shall be determined using the following methods:

( i) Method 18, 40 CFR part 60, appendix A.

( ii) Method 25, 40 CFR part 60, appendix A.

( iii) Method 25A, 40 CFR part 60, appendix A.

( iv) Alternatively, any other test method validated according to the procedures in Method 301, 40 CFR part 60,

appendix A may be used.

( 5) Volumetric flow rate of vented gas stream exiting the combustion treatment process. The volumetric flow rate of the vented gas stream exiting the combustion treatment process shall be determined using Method 2, 2A, 2C, or 2D, CFR part 60,

appendix A, as appropriate. Volumetric flow rate measurements shall be taken at the same time as the concentration measurements.

[ Equation 12] [ Reserved]

( 6) Calculation of mass flow rate of vented gas stream exiting combustion treatment processes. The mass flow rate of organic wastewater compound in a vented gas stream exiting the combustion treatment process shall be calculated using Equation 13 of this section. 138 STAFF DRAFT  09/ 30/ 2005 [ Equation 13] QMGb = 2 b, i i b i= 1 n K ( CG * MW) QG

Where:

QMGb = Mass rate of TOC ( minus methane and ethane)

or total organic wastewater compound in vented gas stream exiting the control device, dry basis, kg/ hr.

CGb, i = Concentration of TOC ( minus methane and ethane) or organic wastewater compound i in vented gas stream exiting the control device,

dry basis, parts per million by volume.

MWi = Molecular weight of component i,

kilograms/ kilogram mole.

QGb = Flow rate of gas stream exiting the control device, dry standard cubic meters per hour.

K2 = Constant, 41.57 x 10 9 ( parts per million) 1 ( gram mole per standard cubic meter)

( kilogram/ gram), where standard temperature is 20

C.

i = Identifier for a compound.

n = Number of components in the stream. 139 STAFF DRAFT  09/ 30/ 2005 ( 7) Destruction efficiency calculation. The destruction efficiency of the combustion unit for organic wastewater compound shall be calculated using Equation 14 of this section.

[ Equation 14] E = QMW  QMG QMW * 100 a b a Where:

E = Destruction efficiency of organic wastewater compound for the combustion unit, percent.

QMWa = Mass flow rate of organic wastewater compound entering the combustion unit, kg/ hr.

QMGb = Mass flow rate of organic wastewater compound in vented gas stream exiting the combustion treatment process, kg/ hr.

( 8) Calculation of flow weighted average of Fr values. Use Equation 15 in this paragraph ( d)( 8) to calculate the flowweighted average of the Fr values. Follow the procedures in § 60.778 of this subpart to develop a stream specific list of organic wastewater compound. Follow the procedures in appendix J to this part to determine the Fr values.

[ Equation 15] Fravg i k p i n i n k p = i, a, k * a, k i, a, k a, k Fr * C Q C * Q * 100 = =

= =

            1 1 1 1 140 STAFF DRAFT  09/ 30/ 2005 Where:

Fravg = Flow weighted average of the Fr values.

Ci, a, k = Concentration of organic wastewater compound i in wastewater stream entering the combustion unit during run k, ppmw.

Qa, k = Volumetric flow rate of wastewater entering the combustion unit during run k, cubic meters per hour.

Fri = Fr value of component i as determined by the procedures in appendix J to this part.

i = Identifier for a compound.

n = Number of components in the stream.

k = Identifier for a run.

p = Number of runs.

( 9) Calculate flow weighted average of Fr values and compare to mass destruction efficiency. Compare the mass destruction efficiency ( calculated in Equation 14) to the required efficiency as specified in § 60.779( e)( 1) of this subpart. Compliance is demonstrated if the mass destruction efficiency is greater than or equal to the flow weighted average of the Fr values calculated in Equation 15.

( 10) Non speciated compliance demonstration. As an 141 STAFF DRAFT  09/ 30/ 2005 alternative, compliance with the percent mass destruction limits specified in § 60.779 ( e)( 1) is demonstrated if the mass destruction efficiency of total organic compounds, ( calculated in Equation 14), is greater than or equal to ninety nine percent.

( e) Non combustion treatment processes including closed biological treatment processes: RMR option. This paragraph ( e)

applies to performance tests for non combustion treatment processes other than open biological treatment processes to demonstrate compliance with the mass removal provisions for organic wastewater compound. Compliance options for noncombustion non biological treatment processes are specified in § 60.779( f)( 1) of this subpart. Compliance options for closed aerobic and anaerobic biological treatment processes are specified in § 60.779( f)( 2)( i) and ( g)( 1)( i), and § 60.779( f)( 3)

and ( g)( 2), respectively, of this subpart. When complying with any of these compliance options, the owner or operator shall also comply with the requirements specified in paragraphs ( e)( 1)

through ( 6) of this section.

( 1) Concentration in wastewater stream. The concentration of organic wastewater compound shall be determined as provided in this paragraph ( e)( 1). Concentration measurements to determine RMR shall be taken at the point of determination or downstream of 142 STAFF DRAFT  09/ 30/ 2005 the point of determination with adjustment for concentration change made according to § 60.782( b)( 6) of this subpart.

Concentration measurements to determine AMR shall be taken at the inlet and outlet to the treatment process and as provided in paragraphs ( a)( 12) through ( 14) of this section for a series of treatment processes. Wastewater samples shall be collected using sampling procedures which minimize loss of organic compounds during sample collection and analysis and maintain sample integrity per § 60.782( b)( 5)( ii) of this subpart. The method shall be an analytical method for wastewater which has that compound as a target analyte. Samples may be grab samples or composite samples. Samples shall be taken at approximately equally spaced time intervals over a 1 hour period. Each 1 hour period constitutes a run, and the performance test shall consist of a minimum of three runs.

( 2) Flow rate. Flow rate measurements to determine RMR shall be taken at the point of determination or downstream of the point of determination with adjustment for flow rate change made according to § 60.782( c)( 4) of this subpart. Flow rate measurements to determine AMR shall be taken at the inlet and outlet to the treatment process and as provided in paragraphs ( a)( 12) through ( 14) of this section for a series of treatment processes. Flow rate shall be determined using inlet and outlet 143 STAFF DRAFT  09/ 30/ 2005 flow measurement devices. Where the outlet flow is not greater than the inlet flow, a flow measurement device shall be used, and may be used at either the inlet or outlet. Flow rate measurements shall be taken at the same time as the concentration measurements.

( 3) Calculation of RMR for non combustion treatment processes including closed biological treatment processes. When using § 60.779( f)( 2)( i) or ( 3) of this subpart to comply, the RMR of organic wastewater compound for each Group 1 wastewater stream shall be calculated as specified in paragraph ( e)( 3)( i) of this section. When using § 60.779( g)( 1)( i) or ( 2) of this subpart to comply, the RMR shall be calculated as specified in paragraph ( e)( 3)( ii) of this section.

( i) When using § 60.779( f)( 2)( i) or ( 3) of this subpart to comply, the required mass removal of organic wastewater compound for each Group 1 wastewater stream shall be calculated using Equation 16 in this paragraph.

[ Equation 16] RMR C Fr i i = 10 * Q 9 i= 1 n   ( * )

Where:

RMR = Required mass removal for treatment process or series of treatment processes, kg/ hr. 144 STAFF DRAFT  09/ 30/ 2005   = Density of the Group 1 wastewater stream,

kilograms per cubic meter.

Q = Volumetric flow rate of wastewater stream at the point of determination, liters per hour.

i = Identifier for a compound.

n = Number of organic wastewater compounds in the stream.

Ci = Concentration of organic wastewater compound i at the point of determination, ppmw.

Fri = Fractional removal value of organic wastewater compound i. Follow the procedures in § 60.778 of this subpart to develop a stream specific list of organic wastewater compounds. Follow the procedures in appendix J to this part to determine Fr values.

109 = Conversion factor, mg/ kg * l/ m3.

( ii) When using § 60.779( g)( 1)( i) or ( 2) of this subpart to comply, the RMR is 95 percent of the mass flow rate for all wastewater streams combined for treatment. The RMR of organic wastewater compound for wastewater streams combined for treatment when complying with § 60.779( g) of this subpart shall be calculated using Equation 17 in this 145 STAFF DRAFT  09/ 30/ 2005 [ Equation 17] RMR = 0.95 10 * Q C 9 i i= 1 n

Where:

RMR = Required mass removal for treatment process or series of treatment processes, kg/ hr.

  = Density of the wastewater stream, kilograms per cubic meter.

Q = Volumetric flow rate of wastewater stream at the point of determination, liters per hour.

i = Identifier for a compound.

n = Number of organic wastewater compounds in the stream.

Ci = Concentration of organic wastewater compound i at the point of determination, ppmw.

109 = Conversion factor, mg/ kg * l/ m3.

( 4)( i) The required mass removal is calculated by summing the RMR for each Group 1 wastewater stream to be combined for treatment when complying with § 60.779( f)( 2)( i) or ( 3) of this subpart.

( ii) The RMR is calculated by summing the RMR for all wastewater streams combined for treatment when complying with 146 STAFF DRAFT  09/ 30/ 2005 § 60.779( g)( 1)( i) or ( 2) of this subpart.

( 5) The AMR calculation procedure for non combustion treatment processes including closed biological treatment processes. The AMR shall be calculated using Equation 18 in this paragraph.

[ Equation 18] AMR = ( QMW  QMW ) a b Where:

AMR = Actual mass removal of organic wastewater compound achieved by treatment process or series of treatment processes, kg/ hr.

QMWa = Mass flow rate of organic wastewater compound in wastewater entering the treatment process or the first treatment process in a series of treatment processes, kg/ hr.

QMWb = Mass flow rate of organic wastewater compound in wastewater exiting the last treatment process in a series of treatment processes,

kg/ hr.

( 6) Compare RMR to AMR. When complying with § 60.779( f)( 2)( i) or ( 3) of this subpart, compare the RMR calculated in Equation 16 to the AMR calculated in Equation 18.

When complying with § 60.779( g)( 1)( i) or ( 2) of this subpart, 147 STAFF DRAFT  09/ 30/ 2005 compare the RMR calculated in Equation 17 to the AMR calculated in Equation 18. Compliance is demonstrated if the AMR is greater than or equal to the RMR.

( f) Open or closed aerobic biological treatment processes:

RMR option. This paragraph ( f) applies to the use of performance tests that are conducted for open or closed aerobic biological treatment processes to demonstrate compliance with the mass removal provisions for organic wastewater compound. These compliance options are specified in § 60.779( f)( 2)( i) and ( ii) of this subpart. The owner or operator shall comply with the requirements specified in paragraphs ( f)( 1) through ( 6) of this section. Some compounds may not require a performance test.

Refer to paragraph ( h) of this section and Table 14 to this subpart to determine which compounds may be exempt from the requirements of this paragraph ( f).

( 1) Concentration in wastewater stream. The concentration of organic wastewater compound shall be determined as provided in this paragraph ( f)( 1). Concentration measurements to determine RMR shall be taken at the point of determination or downstream of the point of determination with adjustment for concentration change made according to § 60.782( b)( 6) of this subpart.

Concentration measurements to determine AMR shall be taken at the inlet and outlet to the treatment process and as provided in 148 STAFF DRAFT  09/ 30/ 2005 paragraph ( a)( 12) of this section for a series of treatment processes. Wastewater samples shall be collected using sampling procedures that minimize loss of organic compounds during sample collection and analysis and maintain sample integrity per § 60.782( b)( 5)( ii) of this subpart. The method shall be an analytical method for wastewater which has that compound as a target analyte. Samples may be grab samples or composite samples. Samples shall be taken at approximately equally spaced time intervals over a 1 hour period. Each 1 hour period constitutes a run, and the performance test shall consist of a minimum of 3 runs.

( 2) Flow rate. Flow rate measurements to determine RMR shall be taken at the point of determination or downstream of the point of determination with adjustment for flow rate change made according to § 60.782( c)( 4) of this subpart. Flow rate measurements to determine AMR shall be taken at the inlet and outlet to the treatment process and as provided in paragraph ( a)( 7) of this section for a series of treatment processes. Flow rate shall be determined using inlet and outlet flow measurement devices. Where the outlet flow is not greater than the inlet flow, a flow measurement device shall be used, and may be used at either the inlet or outlet. Flow rate measurements shall be taken at the same time as the concentration measurements. 149 STAFF DRAFT  09/ 30/ 2005 ( 3) Calculation of RMR for open or closed aerobic biological treatment processes. The RMR of organic wastewater compound for each Group 1 wastewater stream shall be calculated using Equation 19 in this paragraph.

[ Equation 19] RMR Ci = 10 * Q Fr ) 9 * i i= 1 n   (

Where:

RMR = Required mass removal for treatment process or series of treatment processes, kg/ hr.

  = Density of the Group 1 wastewater stream,

kilograms per cubic meter.

Q = Volumetric flow rate of wastewater stream at the point of determination, liters per hour.

i = Identifier for a compound.

n = Number of organic wastewater compounds in the stream.

Ci = Concentration of organic wastewater compound i at the point of determination, ppmw.

Fri = Fractional removal value of organic wastewater compound i. Follow the procedures in § 60.778 of this subpart to develop a stream specific list of organic wastewater 150 STAFF DRAFT  09/ 30/ 2005 compounds. Follow the procedures in appendix J to this part to determine Fr values.

109 = Conversion factor, mg/ kg * l/ m3.

( 4) The RMR is calculated by adding together the required mass removal for each Group 1 wastewater stream to be combined for treatment.

( 5) AMR calculation procedure for open or closed aerobic biological treatment processes. The AMR shall be calculated using Equation 20 in paragraph ( f)( 5)( i) of this section when the performance test is performed across the open or closed aerobic biological treatment process only. If compliance is being demonstrated in accordance with paragraph ( a)( 12)( i) of this section, the AMR for the series shall be calculated using Equation 21 in paragraph ( f)( 5)( ii) of this section. ( This equation is for situations where treatment is performed in a series of treatment processes connected by hard piping.) If compliance is being demonstrated in accordance with paragraph ( a)( 12)( ii) of this section, the AMR for the biological treatment process shall be calculated using Equation 20. The AMR for the biological treatment process used in a series of treatment processes calculated using Equation 20 shall be added to the AMR 151 STAFF DRAFT  09/ 30/ 2005 determined for each of the other individual treatment processes in the series of treatment processes.

( i) Calculate AMR for the open or closed aerobic biological treatment process as follows:

[ Equation 20] AMR a = QMW * Fbio Where:

AMR = Actual mass removal of organic wastewater compound achieved by open or closed biological treatment process, kg/ hr.

QMWa = Mass flow rate of organic wastewater compound in wastewater entering the treatment process,

kg/ hr.

Fbio = Site specific fraction of organic wastewater compound biodegraded. Fbio shall be determined as specified in paragraph ( h) of this section and 40 CFR part 63, appendix C.

Follow the procedures in § 60.778 of this subpart to develop a stream specific list of organic wastewater compounds.

( ii) Calculate AMR across a series of treatment units where the last treatment unit is an open or closed aerobic biological treatment process using Equation 21 in this paragraph. 152 STAFF DRAFT  09/ 30/ 2005 [ Equation 21] AMR = QMW  ( QMW )( 1  F ) a b bio Where:

AMR = Actual mass removal of organic wastewater compound achieved by a series of treatment processes, kg/ hr.

QMWa = Mass flow rate of organic wastewater compound in wastewater entering the first treatment process in a series of treatment processes,

kg/ hr.

QMWb = Mass flow rate of organic wastewater compound in wastewater exiting the last treatment process in a series of treatment processes prior to the biological treatment process,

kg/ hr.

Fbio = Site specific fraction of organic wastewater compound biodegraded. Fbio shall be determined as specified in paragraph ( h) of this section and 40 CFR part 63, appendix C.

Follow the procedures in § 60.778 of this subpart to develop a stream specific list of organic wastewater compounds.

( 6) Compare RMR to AMR. Compare the RMR calculated in 153 STAFF DRAFT  09/ 30/ 2005 Equation 19 to the AMR calculated in either Equation 20 or 21, as applicable. Compliance is demonstrated if the AMR is greater than or equal to the RMR.

( g) Open or closed aerobic biological treatment processes:

95 percent mass removal option. This paragraph ( g) applies to performance tests that are conducted for open or closed aerobic biological treatment processes to demonstrate compliance with the 95 percent mass removal provisions for organic wastewater compound. This compliance option is specified in § 60.779( g) of this subpart. The RMR for this option is 95 percent mass removal. The owner or operator shall comply with the requirements specified in paragraph ( g)( 1) of this section to determine AMR, paragraphs ( e)( 3)( ii) and ( 4)( ii) of this section to determine RMR, and paragraph ( g)( 2) of this section to determine whether compliance has been demonstrated. Some compounds may not require a performance test. Refer to paragraph ( h) of this section and Table 14 of this subpart to determine which compounds may be exempt from the requirements of this paragraph ( g).

( 1) The owner or operator shall comply with the requirements specified in paragraphs ( f)( 1), ( 2), and ( 5) of this section to determine AMR. References to Group 1 wastewater streams shall be deemed all wastewater streams combined for 154 STAFF DRAFT  09/ 30/ 2005 treatment for the purposes of this paragraph ( g)( 1).

( 2) Compare RMR to AMR. Compliance is demonstrated if the AMR is greater than or equal to the RMR.

( h) Site specific fraction biodegraded ( Fbio). The organic wastewater compounds are divided into two sets for the purposes of determining whether Fbio must be determined and, if Fbio must be determined, which procedures may be used to determine compound specific kinetic parameters. These sets are organic wastewater compounds in Table 14 of this subpart, and all other organic wastewater compound. ( 1) Performance test exemption. If a biological treatment process meets the requirements specified in paragraphs ( h)( 1)( i) and ( ii) of this section, the owner or operator is not required to determine Fbio and is exempt from the applicable performance test requirements specified in § 60.779 of this subpart.

( i) The biological treatment process meets the definition of " enhanced biological treatment process" in § 60.771 of this subpart.

( ii) At least 99 percent by weight of all organic wastewater compounds that are present in the aggregate of all wastewater streams using the biological treatment process to comply with § 60.779 of this subpart are compounds in Table 14 of this subpart. 155 STAFF DRAFT  09/ 30/ 2005 ( 2) Fbio determination. If a biological treatment process does not meet the requirement specified in paragraph ( h)( 1)( i) of this section, the owner or operator shall determine Fbio for the biological treatment process using the procedures in 40 CFR part 63, appendix C, and paragraph ( h)( 2)( ii) of this section. If a biological treatment process meets the requirements of paragraph ( h)( 1)( i) of this section but does not meet the requirement specified in paragraph ( h)( 1)( ii) of this section, the owner or operator shall determine Fbio for the biological treatment process using the procedures in 40 CFR part 63, appendix C, and paragraph ( h)( 2)( i) of this section.

( i) Enhanced biological treatment processes. If the biological treatment process meets the definition of " enhanced biological treatment process" in § 60.771 of this subpart and the wastewater streams include one or more compounds not in Table 14 of this subpart that do not meet the criteria in paragraph ( h)( 1)( ii) of this section, the owner or operator shall determine Fbio for organic wastewater compound not in Table 14 of this subpart using any of the procedures specified in 40 CFR part 63,

appendix C ( stream specific list). ( The symbol Fbio represents the site specific fraction of an individual organic wastewater compound that is biodegraded.) The owner or operator shall calculate Fbio for the organic wastewater compounds in Table 14 of 156 STAFF DRAFT  09/ 30/ 2005 this subpart using the defaults provided for first order biodegradation rate constants ( K1) of this subpart and follow the procedure explained in Form III of 40 CFR part 63, appendix C, or any of the procedures specified in 40 CFR part 63, appendix C.

( ii) Biological treatment processes that are not enhanced biological treatment processes. For biological treatment processes that do not meet the definition for " enhanced biological treatment process" in § 60.771 of this subpart, the owner or operator shall determine Fbio for organic wastewater compounds in Table 14 of this subpart and all other organic wastewater compound using any of the procedures in 40 CFR part 63, appendix C, except procedures 3 ( Inlet and Outlet Concentration Measurements) and 5 ( Multiple Zone Concentration Measurements).

( i) Performance tests for control devices other than flares. This paragraph ( i) applies to performance tests that are conducted to demonstrate compliance of a control device with the efficiency limits specified in § 60.780( c) of this subpart. If complying with the 95 percent reduction efficiency requirement,

comply with the requirements specified in paragraphs ( i)( 1)

through ( 9) of this section. If complying with the 20 parts per million by volume ( ppmv) requirement, comply with the requirements specified in paragraphs ( i)( 1) through ( 6) and 157 STAFF DRAFT  09/ 30/ 2005 ( i)( 9) of this section. The 20 ppmv limit or 95 percent reduction efficiency requirement shall be measured either as total organic wastewater compound or as TOC minus methane and ethane.

( 1) Sampling sites. Sampling sites shall be selected using Method 1 or 1A of appendix A to this part, as appropriate. For determination of compliance with the 95 percent reduction requirement, sampling sites shall be located at the inlet and outlet of the control device. For determination of compliance with the 20 ppm by volume limit, the sampling site shall be located at the outlet of the control device.

( 2) Concentration in gas stream entering or exiting the control device. The concentration of total organic wastewater compound or TOC in a gas stream shall be determined as provided in this paragraph ( i)( 2). Samples may be grab samples or composite samples ( i. e., integrated samples). Samples shall be taken at approximately equally spaced time intervals over a 1

hour period. Each 1 hour period constitutes a run, and the performance test shall consist of a minimum of 3 runs.

Concentration measurements shall be determined using the following methods:

( i) Method 18, 40 CFR part 60, appendix A.

( ii) Method 25 of appendix A of part 60 may be used to 158 STAFF DRAFT  09/ 30/ 2005 determine total gaseous nonmethane organic concentration for control efficiency determinations in combustion devices.

( iii) Method 25A of appendix A of part 60 may be used to determine the TOC concentration for control device efficiency determinations under the conditions specified in Method 25 of appendix A for direct measurement with a flame ionization detector, or in demonstrating compliance with the 20 ppmv TOC outlet standard.

( iv) Alternatively, any other test method validated according to the procedures in Method 301, 40 CFR part 60,

appendix A may be used.

( 3) Volumetric flow rate of gas stream entering or exiting the control device. The volumetric flow rate of the gas stream shall be determined using Method 2, 2A, 2C, or 2D, 40 CFR part 60, appendix A, as appropriate. Volumetric flow rate measurements shall be taken at the same time as the concentration measurements.

( 4) Calculation of TOC concentration. The TOC concentration ( CGT) is the sum of the concentrations of the individual components. If compliance is being determined based on TOC, the owner or operator shall compute TOC for each run using Equation 22 in this paragraph. 159 STAFF DRAFT  09/ 30/ 2005 [ Equation 22] CG CGS T ij i n j m = 1 m ,

= =

     1 1 Where:

CGT = Total concentration of TOC ( minus methane and ethane) in vented gas stream, average of samples, dry basis,

ppmv, if calculating TOC in accordance with paragraph ( i)( 4) of this section,

or total organic wastewater compound concentration, ppmv, if calculating TOC in accordance with paragraph ( i)( 5) of this section.

CGSi, j = Concentration of sample component i in vented gas stream for sample j, dry basis, ppmv.

i = Identifier for a compound.

n = Number of components in the sample.

j = Identifier for a sample.

m = Number of samples in the sample run.

( 5) Calculation of total organic wastewater compound concentration. The owner or operator determining compliance 160 STAFF DRAFT  09/ 30/ 2005 based on total organic wastewater compound concentration ( CGT) shall compute CGT according to Equation 22.

( 6) Percent oxygen correction for combustion control devices. If the control device is a combustion device,

comply with the requirements specified in paragraph ( i)( 6)( i) of this section to determine oxygen concentration,

and in paragraph ( i)( 6)( ii) of this section to calculate the percent oxygen correction.

( i) Oxygen concentration. The concentration of TOC or total organic wastewater compound shall be corrected to 3 percent oxygen if the control device is a combustion device.

The emission rate correction factor for excess air,

composite sampling ( i. e., integrated sampling), and analysis procedures of Method 3B, 40 CFR part 60, appendix A shall be used to determine the actual oxygen concentration (% 02d).

The samples shall be taken during the same time that the TOC ( minus methane and ethane) or total organic wastewater compound samples are taken.

( ii) Three percent oxygen calculation. The concentration corrected to 3 percent oxygen ( CGc), when required, shall be computed using Equation 23 in this paragraph. 161 STAFF DRAFT  09/ 30/ 2005 [ Equation 23] CGc = T 2d CG 17.9 20.9  % O

       Where:

CGc = Concentration of TOC or organic wastewater compound corrected to 3 percent oxygen, dry basis, ppmv.

CGT = Total concentration of TOC ( minus methane and ethane) in vented gas stream, average of samples, dry basis,

ppmv.

% 02d = Concentration of oxygen measured in vented gas stream, dry basis, ppmv.

( 7) Mass rate calculation. The mass rate of either TOC ( minus methane and ethane) or total organic wastewater compound shall be calculated using Equations 24 and 25 in this paragraph. Where the mass rate of TOC is being calculated, all organic compounds ( minus methane and ethane) measured by methods specified in paragraph ( i)( 2) of this section are summed using Equations 24 and 25.

[ Equation 24] QMG QG a a = 2 a, i i K CG * MW i= 1 n

       162 STAFF DRAFT  09/ 30/ 2005 [ Equation 25] QMG QG b b = 2 b, i i K CG * MW i= 1 n

       Where:

CGa, i, CGb, i = Concentration of TOC ( minus methane and ethane) or organic wastewater compound i in vented gas stream entering ( CGa, i) and exiting ( CGb, i) the control device, dry basis, ppmv.

QMGa, QMGb = Mass rate of TOC ( minus methane and ethane) or total organic wastewater compound in vented gas stream entering ( QMGa) and exiting ( QMGb) the control device, dry basis, kg/ hr.

MWi = Molecular weight of component i,

kilograms/ kilogram mole.

QGa, QGb = Flow rate of gas stream entering ( QGa)

and exiting ( QGb) the control device, dry standard cubic meters per hour.

K2 = Constant, 41.57 x 10 9 ( parts per million) 1 ( gram mole per standard cubic meter) ( kilogram/ gram), where standard temperature is 20

C.

i = Identifier for a compound. 163 STAFF DRAFT  09/ 30/ 2005 n = Number of components in the sample.

( 8) Percent reduction calculation. The percent reduction in TOC ( minus methane and ethane) or total organic wastewater compound shall be calculated using Equation 26 in this paragraph.

[ Equation 26] ( ) E = QMG  QMG QMG a b a 100%

Where:

E = Destruction efficiency of control device, percent.

QMGa, QMGb = Mass rate of TOC ( minus methane and ethane) or total organic wastewater compound in vented gas stream entering ( QMGa) and exiting ( QMGb) the control device, dry basis, kg/ hr.

( 9) Compare mass destruction efficiency to required efficiency. If complying with the 95 percent reduction efficiency requirement, compliance is demonstrated if the mass destruction efficiency ( calculated in Equation 26) is 95 percent or greater. If complying with the 20 ppmv limit 164 STAFF DRAFT  09/ 30/ 2005 in § 60.780( c) of this subpart, compliance is demonstrated if the outlet TOC concentration, less methane and ethane, or total organic wastewater compound concentration is 20 ppmv or less. For combustion control devices, the concentration shall be calculated on a dry basis, corrected to 3 percent oxygen.

( j) Compliance demonstration for flares. When a flare is used to comply with § 60.780( c) of this subpart, the owner or operator shall comply with the flare provisions in § 60.18 of this part and with paragraphs ( j)( 1) through( 3) of this section. The owner or operator is not required to conduct a performance test to determine percent emission reduction, or outlet organic wastewater compound or TOC concentration, when a flare is used.

( 1) Conduct a visible emission test using the techniques specified in § 60.18( c)( 1) and ( f)( 1) of this part.

( 2) Determine the net heating value of the gas being combusted, using the techniques specified in § 60.18 ( c) and ( f)( 3) of this part; and ( 3) Determine the exit velocity using the techniques specified in § 60.18( c)( 4) and ( 5) and ( f)( 4) through ( 6) of this part, as appropriate. 165 STAFF DRAFT  09/ 30/ 2005 § 60.784 Reporting requirements.

( a) Owners or operators requesting approval to use alternative monitoring, recordkeeping, or reporting shall comply with the provisions in paragraph ( b) of this section.

Each owner or operator shall submit the reports specified in paragraphs ( a)( 1) through ( 3) of this section, as applicable:

( 1) Reports required by subpart A of part 60 of this part, as specified in Table 2 to this subpart;

( 2) Reports required in paragraphs ( c) through ( h) of this section; and ( 3) Startup, shutdown, and malfunction reports specified in § 60.787( b)( 4) of this subpart.

( b) Requests for alternative monitoring and recordkeeping. An owner or operator may request approval to use alternatives to the continuous operating parameter monitoring and recordkeeping provisions of this subpart, as specified in this paragraph ( b).

( 1) Requests for approval to use alternatives to the continuous monitoring and recordkeeping provisions shall be submitted to the Administrator. Affected facilities shall submit the request for approval to use alternative monitoring and recordkeeping prior to the implementation of 166 STAFF DRAFT  09/ 30/ 2005 the alternative monitoring system for which approval is being requested if not already included in the operating permit application. The request shall contain the information specified in paragraphs ( b)( 2) through ( 4) of this section, as applicable.

( 2) Request for non automated monitoring and recording system. An owner or operator of an affected facility that does not have an automated monitoring and recording system capable of measuring parameter values at least once every 15 minutes and generating continuous records may request approval to use a non automated system with less frequent monitoring.

( i) The requested system shall include manual reading and recording of the value of the relevant operating parameter no less frequently than once per hour. Daily average values shall be calculated from these hourly values and recorded.

( ii) The request shall contain:

( A) A description of the planned monitoring and recordkeeping system;

( B) Documentation that the affected facility does not have an automated monitoring and recording system;

( C) Justification for requesting an alternative 167 STAFF DRAFT  09/ 30/ 2005 monitoring and recordkeeping system; and ( D) Demonstration to the Administrator's satisfaction that the proposed monitoring frequency is sufficient to represent control device operating conditions considering typical variability of the specific process and control device operating parameter being monitored.

( 3) Request for automated data compression recording system. An owner or operator may request approval to use an automated data compression recording system that does not record monitored operating parameter values at a set frequency ( for example, once every 15 minutes), but records all values that meet set criteria for variation from previously recorded values.

( i) The requested system shall be designed to:

( A) Measure the operating parameter value at least once every 15 minutes.

( B) Record at least four values each hour during periods of operation.

( C) Record the date and time when monitors are turned off or on.

( D) Recognize unchanging data that may indicate the monitor is not functioning properly, alert the operator, and record the incident. 168 STAFF DRAFT  09/ 30/ 2005 ( E) Compute daily average values of the monitored operating parameter based on recorded data.

( F) If the daily average is not an excursion, as defined in paragraphs ( d)( 3)( i) through ( iii) of this section, the data for that operating day may be converted to hourly average values and the four or more individual records for each hour in the operating day may be discarded.

( ii) The request shall contain a description of the monitoring system and data compression recording system,

including the criteria used to determine which monitored values are recorded and retained, the method for calculating daily averages, and a demonstration that the system meets all criteria in paragraph ( b)( 3 )( i) of this section.

( 4) For each waste management unit, treatment process,

or control device used to comply with § § 60.774 and 60.775 of this subpart for which the owner or operator seeks to monitor a parameter other than those specified in Tables 5,

7, and 8 of this subpart, the owner or operator shall submit a request for approval to monitor alternative parameters.

The owner or operator who requests approval to monitor a different parameter than those listed in Tables 5, 7, and 8 of this subpart shall submit the information specified in paragraphs ( b)( 4)( i) through ( iii) of this section. 169 STAFF DRAFT  09/ 30/ 2005 ( i) A description of the parameter( s) to be monitored to ensure the waste management unit, treatment process, or control device monitor is operated in conformance with its design and achieves the specified emission limit, percent reduction, or nominal efficiency, and an explanation of the criteria used to select the parameter( s).

( ii) A description of the methods and procedures that will be used to demonstrate that the parameter indicates proper operation of the waste management unit, treatment process, or control device, the schedule for this demonstration, and a statement that the owner or operator will establish, as part of the demonstration, an operating parameter value or range for the monitored parameter that indicates proper operation and maintenance of the unit,

process, or device.

( iii) The frequency and content of monitoring,

recording, and reporting if monitoring and recording is not continuous, or if semiannual reports required under paragraph ( d) of this section will not include reports of daily average values when the monitored operating parameter is not above or below ( as appropriate) the operating parameter value established in paragraph ( c)( 7)( ii) of this section. The rationale for the proposed monitoring, 170 STAFF DRAFT  09/ 30/ 2005 recording, and reporting system shall be included.

( c) Notification of Compliance Status. Each owner or operator subject to this subpart shall submit a Notification of Compliance Status within 150 days after the compliance dates specified in § 60.770( b)( 1) of this subpart. The Notification of Compliance Status shall include the results of group determinations, performance tests, inspections,

continuous monitoring system performance evaluations, values of monitored parameters established during performance tests, and any other information specified in paragraphs ( c)( 1) through ( 18) of this section used to demonstrate compliance or required to be included in the Notification of Compliance Status.

( 1) The owner or operator shall identify each affected facility and describe the process wastewater streams, and maintenance wastewater streams generated by the affected facility. For each designated CPU, the owner or operator shall identify the major equipment in the designated CPU.

Major equipment includes reactors, distillation columns, and other large unit operations. Smaller items such as pumps and auxiliary equipment need not be specifically identified;

however, the information provided must be sufficient to demonstrate that all components of a CPU were assigned to a 171 STAFF DRAFT  09/ 30/ 2005 designated CPU. This may be done by showing CPU and designated CPU boundaries on a flow diagram or by providing an equipment list or other appropriate documentation.

( 2) For each affected facility, the owner or operator shall submit the information specified in Table 9 of this subpart for each wastewater stream generated.

( 3) For each treatment process identified in Table 9 to this subpart that receives, manages, or treats a wastewater stream ( i. e., Group 1 wastewater stream or Group 2 wastewater stream selected by the owner or operator for control) or residual removed from a wastewater stream, the owner or operator shall submit the information specified in Table 10 to this subpart.

( 4) For each waste management unit identified in Table 9 to this subpart that receives or manages a wastewater stream ( i. e., Group 1 wastewater stream or Group 2 wastewater stream selected by the owner or operator for control) or residual removed from a wastewater stream, the owner or operator shall submit the information specified in Table 11 to this subpart.

( 5) For each waste management unit identified in Table 9 to this subpart, the owner or operator shall include in the Notification of Compliance Status the compliance option 172 STAFF DRAFT  09/ 30/ 2005 that will be used to comply with § 60.774 of this subpart,

and the applicable provisions of other subparts that the owner or operator will use to comply with the compliance option, as allowed in § 60.774 of this subpart. In addition,

submit any other types of information required to be submitted in the Notification of Compliance Status, as specified in § 60.774( f)( 2) of this subpart.

( 6) For each residual removed from a wastewater stream ( i. e., Group 1 wastewater stream or Group 2 wastewater stream selected by the owner or operator for control), the owner or operator shall submit the information specified in Table 12 to this subpart.

( 7) For each control device used to comply with § § 60.774, 60.775, and 60.779 of this subpart, the owner or operator shall submit the information specified in paragraphs ( c)( 7)( i) and ( ii) of this section.

( i) For each flare, the owner or operator shall submit the information specified in paragraphs ( c)( 7)( i)( A) through ( C) of this section.

( A) Flare design ( i. e., steam assisted, air assisted,

or non assisted);

( B) All visible emission readings, heat content determinations, flow rate measurements, and exit velocity 173 STAFF DRAFT  09/ 30/ 2005 determinations made during the compliance determination as specified by § 60.780( c)( 3) of this subpart; and ( C) Reports of the times and durations of all periods during the compliance determination when the pilot flame is absent or the monitor is not operating.

( ii) For each control device other than a flare, the owner or operator shall submit the information specified in paragraph ( c)( 7)( ii)( A) of this section and in either paragraph ( c)( 7)( ii)( B) or ( C) of this section.

( A) The information in paragraphs ( c)( 7)( ii)( A)( 1)

through ( 3) of this section on operating parameter values required to be established under § 60.781( e) of this subpart for the applicable parameters specified in Table 8 to this subpart, unless the operating parameter value has already been established in the operating permit.

( 1) The specific operating parameter value( s) of the monitored parameter( s);

( 2) The rationale for the specific operating parameter value for each parameter, including any data and calculations used to develop the value and a description of why the value indicates proper operation of the control device.

( i) If a performance test is conducted for a control 174 STAFF DRAFT  09/ 30/ 2005 device, the operating parameter value shall be based on the parameter values measured during the performance test,

supplemented by engineering analyses and/ or manufacturer's recommendations. Performance testing is not required to be conducted over the entire range of permitted parameter values.

( ii) If a performance test is not conducted for a control device, the operating parameter value may be based solely on engineering analyses and/ or manufacturer's recommendations.

( 3) A definition of the affected facility's operating day for purposes of determining daily average values of monitored parameters. The definition shall specify the times at which an operating day begins and ends.

( B) The design analysis specified in § 60.780( d)( 2) of this subpart; or ( C) Results of the performance test specified in § 60.780( d)( 1) of this subpart. Performance test results shall include operating ranges of key process and control parameters during the performance test; the value, averaged over the period of the performance test, of each parameter identified in the operating permit as being monitored in accordance with § 60.781 of this subpart; and applicable 175 STAFF DRAFT  09/ 30/ 2005 supporting calculations.

( 8) For each treatment process used to comply with § 60.779( d), ( e), ( f), or ( g) of this subpart, the owner or operator shall submit the information specified in paragraphs ( c)( 8)( i) and ( ii) of this section.

( i) For Items 1 and 3 in Table 7 to this subpart, the owner or operator shall submit the information specified in paragraphs ( c)( 8)( i)( A) and ( B) of this section.

( A) The information specified in paragraph ( c)( 7)( ii)( A) of this section for the operating parameter value required to be established under § 60.781( e) of this subpart for the monitoring parameters approved by the Administrator, unless the operating parameter value has already been established in the operating permit. An owner or operator using the design steam stripper compliance option specified in § 60.779( d) of this subpart does not have to submit the information specified in paragraph ( c)( 8)( i)( A) or ( B) of this section. However, the monitoring requirements specified in Item 2 of Table 7 to this subpart still apply.

( B) Results of the initial measurements of the parameters approved by the Administrator and any applicable supporting calculations. 176 STAFF DRAFT  09/ 30/ 2005 ( ii) For Item 2 in Table 7 to this subpart, the owner or operator shall submit the information specified in paragraph ( c)( 7)( ii)( A) of this section for the monitored operating parameter values required to be established under § 60.781( e) of this subpart, unless the operating parameter value has already been established in the operating permit.

( 9) Except as provided in paragraph ( c)( 9)( iii) of this section, for each waste management unit or treatment process used to comply with this subpart, the owner or operator shall submit the information specified in either paragraph ( c)( 9)( i) or ( ii) of this section.

( i) The design evaluation and supporting documentation specified in § 60.779( j)( 1) of this subpart.

( ii) Results of the performance test specified in § 60.779( j)( 2) of this subpart. Performance test results shall include operating ranges of key process and control parameters during the performance test; the value, averaged over the period of the performance test, of each parameter identified in the operating permit as being monitored in accordance with § 60.781( e) of this subpart; and applicable supporting calculations.

( iii) If the owner or operator elects to use one of the options for treatment in a RCRA unit specified in 177 STAFF DRAFT  09/ 30/ 2005 § 60.779( h) of this subpart, the owner or operator is exempt from the requirements specified in paragraphs ( c)( 9)( i) and ( ii) of this section.

( 10) For performance tests and group determinations that are based on measurements, and for estimates of organic wastewater compound emissions, the Notification of Compliance Status shall include one complete test report for each test method used for a particular kind of emission point. For additional tests performed for the same kind of emission point using the same method, the results and any other information required shall be submitted, but a complete test report is not required. A complete test report shall include a brief process description, sampling site description, description of sampling and analysis procedures and any modifications to standard procedures,

quality assurance procedures, record of operating conditions during the test, record of preparation of standards, record of calibrations, raw data sheets for field sampling, raw data sheets for field and laboratory analyses, documentation of calculations, and any other information required by the test method.

( 11) An owner or operator who transfers a Group 1 wastewater stream or residual removed from a Group 1 178 STAFF DRAFT  09/ 30/ 2005 wastewater stream for treatment pursuant to § 60.773( e) of this subpart shall include in the Notification of Compliance Status the name and location of the transferee and a description of the Group 1 wastewater stream or residual removed from a Group 1 wastewater stream sent to the treatment facility.

( 12) The owner or operator who chooses to comply with the provisions in § 60.789 of this subpart shall include in the Notification of Compliance Status a statement specifying which regulation( s) is ( are) being used to comply with this subpart.

( 13) Notification that the owner or operator has elected to comply with the reduced recordkeeping program in § 60.785( j) of this subpart.

( 14) Notification of the waste management unit compliance option used to comply with the provisions of this subpart, as specified in § 60.774 of this subpart, shall be submitted in the Notification of Compliance Status. If the owner or operator is complying with the recordkeeping and reporting provisions of a rule other than this subpart, as specified in § 60.774 of this subpart, a statement containing this information shall be submitted.

( 15) Requirements for Group 2 wastewater streams. 179 STAFF DRAFT  09/ 30/ 2005 This paragraph does not apply to Group 2 wastewater streams that are used to comply with § 60.779( g) of this subpart.

For Group 2 wastewater streams, the owner or operator shall include the information specified in paragraphs ( c)( 15)( i)

through ( iv) of this section in the Notification of Compliance Status report. This information may be submitted in any form. Table 9 to this subpart is an example.

( i) Identification and description of the CPU;

( ii) Stream identification code;

( iii) Concentration of compound( s) in ppmw. Include documentation of the methodology used to determine concentration; and ( iv) Flow rate in liters per minute.

( 16) The owner or operator who opts to exclude up to 5 Mg of organic wastewater compound per year from control,

as specified in § 60.779( m) of this subpart, shall identify in the Notification of Compliance Status each Group 1 wastewater stream that will not be controlled and the calculations used to determine the annual average concentration and the annual flow rate, as specified in § 60.779( m)( 1) and ( 2) of this subpart.

( 17) If a stream specific list of organic wastewater compound is required, as specified in § 60.778 of this 180 STAFF DRAFT  09/ 30/ 2005 subpart, the owner or operator shall include the following information, as applicable, in the Notification of Compliance Status.

( i) When creating a stream specific list of organic wastewater compound for Group 1 and Group 2 determinations,

as specified in § 60.778( d) of this subpart, document how the percent of organic wastewater compound in the process wastewater stream was determined.

( ii) When creating a stream specific list of organic wastewater compound for estimating VOC emission changes for modification determinations, as specified in § 60.778( e) of this subpart, document how the percentage of organic wastewater compound in the process wastewater stream or aqueous in process stream was determined.

( 18) The owner or operator subject to § 60.779( a)( 7) of this subpart, using a series of treatment processes or control devices, shall identify in the Notification of Compliance Status the combination of treatment processes or of control devices, including identification of the first and last treatment process or control device.

( 19) The owner or operator electing to comply with the alternatice compliance procedure specified in § 60.779( i)

shall submit data and results of the compliance 181 STAFF DRAFT  09/ 30/ 2005 demonstration, including both a description of and the results of the WATER9 modeling validation procedures.

( d) Semiannual reports. Each owner or operator subject to the provisions of this subpart shall submit semiannual reports to the Administrator. The reports shall be submitted semiannually no later than 60 calendar days after the end of each 6 month period. The first report shall be submitted no later than 8 months after the date the Notification of Compliance Status is due and shall cover the 6 month period beginning on the date the Notification of Compliance Status is due.

( 1) The semiannual report shall include updates to information submitted in the Notification of Compliance Status, including the results of group determinations,

performance tests, inspections, continuous monitoring system performance evaluations, values of monitored parameters established during performance tests, and any other information specified in paragraphs ( c)( 1) through ( 18) of this section used to demonstrate compliance or required to be included in the Notification of Compliance Status.

( 2) The semiannual report shall include reports of all excursions and all periods when daily average values of monitored parameters are above the maximum or below the 182 STAFF DRAFT  09/ 30/ 2005 minimum established value.

( 3) The semiannual report shall include the daily average values of monitored parameters for all excursions,

as defined by paragraphs ( d)( 3)( i) through ( iii) of this section. For excursions caused by lack of monitoring data,

the duration of periods when monitoring data were not collected shall be reported. For a control device where multiple parameters are monitored, if one or more of the parameters meets any of the excursion criteria in paragraph ( d)( 3)( i), ( ii), or ( iii) of this section, this is considered a single excursion for the control device.

( i) When the daily average value of one or more monitored parameters is above the maximum or below the minimum ( as appropriate) established operating parameter value.

( ii) When the period of control device operation is 4 hours or greater in an operating day and monitoring data are insufficient to constitute a valid hour of data for at least 75 percent of the operating hours.

( iii) When the period of control device operation is less than 4 hours in an operating day and more than one of the hours during the period of operation does not constitute a valid hour of data due to insufficient monitoring data. 183 STAFF DRAFT  09/ 30/ 2005 ( iv) Monitoring data are insufficient to constitute a valid hour of data, as used in paragraphs ( d)( 3)( ii) and ( iii) of this section, if measured values are unavailable for any of the 15 minute periods within the hour. For data compression systems approved under paragraph ( b)( 3) of this section, monitoring data are insufficient to calculate a valid hour of data if there are fewer than four data values recorded during the hour.

( 4) Each control device is allowed one excused excursion per semiannual period. The first semiannual period is the 6 month period covered by the first semiannual report.

( 5)( i) Paragraphs ( d)( 5)( i)( A) through ( D) of this section specify when an excursion is not a violation. In cases where continuous monitoring is required, the excursion does not count toward the number of excused excursions for determining compliance.

( A) If a monitored parameter is below the minimum established value and the affected facility is operated during such period in accordance with the facility's startup, shutdown, and malfunction plan;

( B) If a monitored parameter is above the maximum established value and the affected facility is operated 184 STAFF DRAFT  09/ 30/ 2005 during such period in accordance with the facility's startup, shutdown, and malfunction plan;

( C) If monitoring data are not collected during periods of startup, shutdown, or malfunction and the affected facility is operated during such periods in accordance with the facility's startup, shutdown, and malfunction plan; or ( D) If cessation of the emissions to which the monitoring applies occurs during periods of non operation of the CPU or portion thereof.

( ii) Nothing in paragraphs ( d)( 3) through ( 5) of this section shall be construed as allowing or excusing a monitoring parameter excursion caused by any activity that violates other applicable provisions of this subpart.

( iii) Paragraphs ( d)( 3) through ( 5) of this section,

except paragraph ( d)( 5)( i) of this section, shall apply only to emission points and control devices for which continuous monitoring is required by this subpart.

( 6) The semiannual report shall include results of any performance tests conducted during the reporting period,

including one complete report for each test method used.

For additional tests performed using the same method,

results and any other information required shall be 185 STAFF DRAFT  09/ 30/ 2005 submitted, but a complete test report is not required. A complete test report shall contain a brief process description, sampling site data, description of sampling and analysis procedures and any modifications to standard procedures, quality assurance procedures, record of operating conditions during the test, record of preparation of standards, record of calibrations, raw data sheets for field sampling, raw data sheets for field and laboratory analyses, documentation of calculations, and any other information required by the test method.

( 7) The semiannual report shall include notification that the owner or operator has elected to comply with the reduced recordkeeping program in § 60.785( j) of this subpart,

if such information was not included in the Notification of Compliance Status under paragraph ( c)( 13) of this section.

( 8) The semiannual report shall include notification that the owner or operator has elected not to retain the daily average values, as specified in § 60.785( j)( 2)( i) of this subpart.

( 9) The semiannual report shall include periods recorded under § 60.785( i)( 4)( i) of this subpart when the vent is diverted from the control device through a bypass line or the flow indicator is not operating. 186 STAFF DRAFT  09/ 30/ 2005 ( 10) The semiannual report shall include all occurrences recorded under § 60.785( i)( 4)( ii) of this subpart in which the seal mechanism is broken, the bypass line damper or valve position has changed, or the key to unlock the bypass line damper or valve was checked out.

( 11) The semiannual report shall include notification that semiannual report information for waste management units will be submitted with semiannual reports required by another rule that is one of the compliance options for waste management units as specified in § 60.774 of this subpart.

( 12) If a stream specific list of organic wastewater compound is required, as specified in § 60.778 of this subpart, the owner or operator shall include the following information, as applicable, in the semiannual report.

( i) When creating a stream specific list of organic wastewater compound for Group 1 and Group 2 determinations,

as specified in § 60.778( d) of this subpart, document how the percentage of organic wastewater compound in the process wastewater stream was determined.

( ii) When creating a stream specific list of organic wastewater compound for estimating VOC emission changes for modification determinations, as specified in § 60.778( e) of this subpart, document how the percentage of organic 187 STAFF DRAFT  09/ 30/ 2005 wastewater compound in the process wastewater stream or aqueous in process stream was determined.

( e) Semiannual reporting for treatment processes.

Except as provided in paragraph ( g) of this section, for each treatment process used to comply with this subpart, the owner or operator shall submit as part of the next semiannual report required by paragraph ( d) of this section the information specified in paragraphs ( e)( 1) through ( 3) of this section.

( 1) For a biological treatment unit, Item 1 in Table 7 to this subpart, the owner or operator shall submit the results of measurements that indicate that the biological treatment unit is outside the parameters established in the Notification of Compliance Status or operating permit.

( 2) For a steam stripper, Item 2 in Table 7 to this subpart, the owner or operator shall submit the monitoring results for each operating day during which the daily average value of any monitored parameter specified in Item 2 of Table 7 to this subpart was above the maximum or below the minimum ( as appropriate) operating parameter value established in the Notification of Compliance Status or operating permit.