A. Applicability 1. This Section applies to a person who fires only sewage sludge or sewage sludge and auxiliary fuel, as defined in Subsection B of this Section, in a sewage sludge incinerator; to a sewage sludge incinerator, as defined in Subsection B of this Section; and to sewage sludge or sewage sludge and auxiliary fuel fired in a sewage sludge incinerator.2. This Section applies to the exit gas from a sewage sludge incinerator stack.B. Special Definitions. All terms not defined below shall have the meaning given them in LAC 33:IX.7301.B and in LAC 33:III.111.Air Pollution Control Device- one or more processes used to treat the exit gas from a sewage sludge incinerator stack.
Auxiliary Fuel- fuel used to augment the fuel value of sewage sludge. This includes, but is not limited to, natural gas, fuel oil, coal, gas generated during anaerobic digestion of sewage sludge, and municipal solid waste (not to exceed 30 percent of the dry weight of sewage sludge and auxiliary fuel together). Hazardous wastes are not auxiliary fuel.
Average Daily Concentration- the arithmetic mean of the concentration of a pollutant in milligrams per kilogram of sewage sludge (dry weight basis) in the samples collected and analyzed in a month.
Control Efficiency- the mass of a pollutant in the sewage sludge fed to an incinerator minus the mass of that pollutant in the exit gas from the incinerator stack divided by the mass of the pollutant in the sewage sludge fed to the incinerator.
Dispersion Factor- the ratio of the increase in the ground level ambient air concentration for a pollutant at or beyond the property line of the site where the sewage sludge incinerator is located to the mass emission rate for the pollutant from the incinerator stack.
Fluidized Bed Incinerator- an enclosed device in which organic matter and inorganic matter in sewage sludge are combusted in a bed of particles suspended in the combustion chamber gas.
Hourly Average- the arithmetic mean of all measurements, taken during an hour. At least two measurements must be taken during the hour.
Incineration- the combustion of organic matter and inorganic matter in sewage sludge by high temperatures in an enclosed device.
Incinerator Operating Combustion Temperature- the arithmetic mean of the temperature readings in the hottest zone of the furnace recorded in a day (24 hours) when the temperature is averaged and recorded at least hourly during the hours the incinerator operates in a day.
Monthly Average- the arithmetic mean of the hourly averages for the hours a sewage sludge incinerator operates during the month.
Performance Test Combustion Temperature- the arithmetic mean of the average combustion temperature in the hottest zone of the furnace for each of the runs in a performance test.
Risk Specific Concentration- the allowable increase in the average daily ground level ambient air concentration for a pollutant from the incineration of sewage sludge at or beyond the property line of the site where the sewage sludge incinerator is located.
Sewage Sludge Feed Rate- either the average daily amount of sewage sludge fired in all sewage sludge incinerators within the property line of the site where the sewage sludge incinerators are located for the number of days in a 365-day period that each sewage sludge incinerator operates, or the average daily design capacity for all sewage sludge incinerators within the property line of the site where the sewage sludge incinerators are located.
Sewage Sludge Incinerator- an enclosed device in which only sewage sludge or sewage sludge and auxiliary fuel are fired.
Stack Height- the difference between the elevation of the top of a sewage sludge incinerator stack and the elevation of the ground at the base of the stack when the difference is equal to or less than 214 feet (65 meters). When the difference is greater than 214 feet (65 meters), stack height is the creditable stack height determined in accordance with LAC 33:III.921.
Standard-a standard of performance proposed or promulgated under this Chapter.
Stationary Source- any building, structure, facility, or installation that emits or may emit any air pollutant.
Total Hydrocarbons- the organic compounds in the exit gas from a sewage sludge incinerator stack measured using a flame ionization detection instrument referenced to propane.
Wet Electrostatic Precipitator-an air pollution control device that uses both electrical forces and water to remove pollutants in the exit gas from a sewage sludge incinerator stack.
Wet Scrubber- an air pollution control device that uses water to remove pollutants in the exit gas from a sewage sludge incinerator stack.
C. General Requirements 1. No person shall fire sewage sludge or sewage sludge and auxiliary fuel in a sewage sludge incinerator except in compliance with the requirements in this Section.2. Performance Tests for New Stationary Sources a. Within 60 days after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial start-up of such facility and at such other times as may be required by the administrative authority, the owner or operator of such facility shall conduct performance test(s) and furnish the administrative authority a written report of the results of such performance test(s).b. Performance tests shall be conducted and data reduced in accordance with the test methods and procedures contained for each applicable requirement in Subsections D, E, and F of this Section, unless the administrative authority: i. specifies or approves, in specific cases, the use of a reference method with minor changes in methodology;ii. approves the use of an equivalent method;iii. approves the use of an alternative method the results of which have been determined by the administrative authority to be adequate for indicating whether a specific source is in compliance;iv. waives the requirement for performance tests because the owner or operator of a source has demonstrated by other means, to the administrative authority's satisfaction, that the affected facility is in compliance with the standard; orv. approves shorter sampling times and smaller sample volumes when necessitated by process variables or other factors. Nothing in this Subparagraph shall be construed to abrogate the administrative authority's right to require additional testing if deemed necessary for proper determination of the standard of performance of the new stationary source.c. Performance tests shall be conducted under such conditions as the administrative authority shall specify to the plant operator based on representative performance of the affected facility. The owner or operator shall make available to the administrative authority such records as may be necessary to determine the conditions of the performance tests. Operations during periods of start-up, shutdown, and malfunction shall not constitute representative conditions for the purpose of a performance test nor shall emissions in excess of the level of the applicable emission limit during periods of start-up, shutdown, and malfunction be considered a violation of the applicable emission limit unless otherwise specified in the applicable standard.d. The owner or operator of an affected facility shall provide the administrative authority at least 30 days prior notice of any performance test, except as otherwise specified in this Subsection, to afford the administrative authority the opportunity to have an observer present. If after 30 days notice for an initially scheduled performance test, there is a delay (due to operational problems, etc.) in conducting the scheduled performance test, the owner or operator of an affected facility shall notify the administrative authority as soon as possible of any delay in the original test date either by providing at least seven days prior notice of the rescheduled date of the performance test or by arranging a rescheduled date with the administrative authority by mutual agreement.e. The owner or operator of an affected facility shall provide, or cause to be provided, performance testing facilities as follows: i. sampling ports adequate for test methods applicable to such facility, 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); andiv. utilities for sampling and testing equipment.f. Unless otherwise specified in the applicable parts of this Paragraph, each performance test shall consist of three separate runs using the applicable test method. Each run shall be conducted for the time and under the conditions specified in the applicable standard. For the purpose of determining compliance with an applicable standard, the arithmetic means of results of the three runs shall apply. In the event that a sample is accidentally lost or conditions occur in which one of the three runs must be discontinued because of forced shutdown, failure of an irreplaceable portion of the sample train, extreme meteorological conditions, or other circumstances beyond the owner's or operator's control, compliance may, upon the administrative authority's approval, be determined using the arithmetic mean of the results of the two other runs.3. In conducting the performance tests required in Paragraph C.2 of this Section, the owner or operator shall use as reference methods and procedures the test methods referenced in LAC 33:IX.7301.I or other methods and procedures as specified in this Section, except as provided for in Subparagraph C.2.b of this Section.4. The owner or operator of any sewage sludge incinerator subject to the provisions of this Chapter shall conduct a performance test during which the monitoring and recording devices required under Paragraphs F.2, 4, and 6, Subparagraph F.8.a, and Paragraph F.9 of this Section are installed and operating and for which the sampling and analysis procedures required under Subparagraph G.1.d of this Section are performed as follows. a. For incinerators that commenced construction or modification: i. on or before April 18, 1986, the performance test shall be conducted within 360 days of the effective date of these regulations, unless the monitoring and recording devices required under Paragraphs F.2, 4, and 6, Subparagraph F.8.a, and Paragraph F.9 of this Section were installed and operating and the sampling and analysis procedures required under Subparagraph G.1.d of this Section were performed during the most recent performance test and a record of the measurements taken during the performance test is available for review by the administrative authority; andii. on or after the effective date of these regulations, the date of the performance test shall be determined by the requirements in Paragraph C.2 of this Section.b. The owner or operator shall provide the administrative authority at least 30 days prior notice of the performance test to afford the administrative authority the opportunity to have an observer present.5. The owner or operator of any sewage sludge incinerator, other than a multiple hearth, fluidized bed, or electric incinerator or any sewage sludge incinerator equipped with a control device other than a wet scrubber, shall submit a plan to the administrative authority for approval for monitoring and recording incinerator and control device operation parameters. The plan shall be submitted to the administrative authority as follows: a. no later than 90 days after October 6, 1988, for sources that have provided notification of commencement of construction prior to October 6, 1988;b. no later than 90 days after the notification of commencement of construction, for sources that provide notification of commencement of construction on or after October 6, 1988; andc. at least 90 days prior to the date on which the new control device becomes operative for sources switching to a control device other than a wet scrubber.D. Pollutant Limits 1. Firing of sewage sludge in a sewage sludge incinerator shall not violate the requirements in the national emission standard for beryllium in Subpart C of 40 CFR Part 61 (as incorporated by reference at LAC 33:III.5116).2. Firing of sewage sludge in a sewage sludge incinerator shall not violate the requirements in the national emission standard for mercury in Subpart E of 40 CFR Part 61 (as incorporated by reference at LAC 33:III.5116).3. Pollutant Limit- Lead a. The average daily concentration for lead in sewage sludge fed to a sewage sludge incinerator shall not exceed the concentration calculated using Equation (4). Click Here To View Image Equation (4)
where:
C = average daily concentration of lead in sewage sludge
NAAQS = National Ambient Air Quality Standard for lead in micrograms per cubic meter
DF = dispersion factor in micrograms per cubic meter per gram per second
CE = sewage sludge incinerator control efficiency for lead in hundredths
SF = sewage sludge feed rate in metric tons per day (dry weight basis)
b. The dispersion factor (DF) in Equation (4) shall be determined from an air dispersion model in accordance with Paragraph D.5 of this Section. i. When the sewage sludge stack height is 214 feet (65 meters) or less, the actual sewage sludge incinerator stack height shall be used in the air dispersion model to determine the dispersion factor (DF) for Equation (4).ii. When the sewage sludge incinerator stack height exceeds 214 feet (65 meters), the creditable stack height shall be determined in accordance with LAC 33:III.921, and the creditable stack height shall be used in the air dispersion model to determine the dispersion factor (DF) for Equation (4).c. The control efficiency (CE) for Equation (4) shall be determined from a performance test of the sewage sludge incinerator in accordance with Paragraph D.5 of this Section. 4. Pollutant Limit- Arsenic, Cadmium, Chromium, and Nickel a. The average daily concentration for arsenic, cadmium, chromium, and nickel in sewage sludge fed to a sewage sludge incinerator each shall not exceed the concentration calculated using Equation (5). Click Here To View Image Equation (5)
where:
C = average daily concentration of arsenic, cadmium, chromium, or nickel in sewage sludge
CE = sewage sludge incinerator control efficiency for arsenic, cadmium, chromium, or nickel in hundredths
DF = dispersion factor in micrograms per cubic meter per gram per second
RSC = risk-specific concentration for arsenic, cadmium, chromium, or nickel in micrograms per cubic meter
SF = sewage sludge feed rate in metric tons per day (dry weight basis)
b. The risk-specific concentrations for arsenic, cadmium, and nickel used in Equation (5) shall be obtained from Table 1 of LAC 33:IX.7311.D. Table 1 of LAC 33:IX.7311.D |
Risk-Specific Concentration for Arsenic, Cadmium, and Nickel |
Pollutant | Risk-Specific Concentration (micrograms per cubic meter) |
Arsenic | 0.023 |
Cadmium | 0.057 |
Nickel | 2.0 |
c. The risk-specific concentration for chromium used in Equation (5) shall be obtained from Table 2 of LAC 33:IX.7311.D or shall be calculated using Equation (6). Table 2 of LAC 33:IX.7311.D |
Risk-Specific Concentration For Chromium |
Type of Incinerator | Risk-Specific Concentration (micrograms per cubic meter) |
Fluidized bed with wet scrubber | 0.65 |
Fluidized bed with wet scrubber and wet electrostatic precipitator | 0.23 |
Other types with wet scrubber | 0.064 |
Other types with wet scrubber and wet electrostatic precipitator | 0.016 |
Click Here To View Image
where:
RSC = risk-specific concentration for chromium in micrograms per cubic meter used in Equation (5)
r = decimal fraction of the hexavalent chromium concentration in the total chromium concentration measured in the exit gas from the sewage sludge incinerator stack in hundredths
d. The dispersion factor (DF) in Equation (5) shall be determined from an air dispersion model in accordance with Paragraph D.5 of this Section.i. When the sewage sludge incinerator stack height is equal to or less than 214 feet (65 meters), the actual sewage sludge incinerator stack height shall be used in the air dispersion model to determine the dispersion factor (DF) for Equation (5).ii. When the sewage sludge incinerator stack height is greater than 214 feet (65 meters), the creditable stack height shall be determined in accordance with LAC 33:III.921 and the creditable stack height shall be used in the air dispersion model to determine the dispersion factor (DF) for Equation (5).e. The control efficiency (CE) for Equation (5) shall be determined from a performance test of the sewage sludge incinerator in accordance with Paragraph D.5 of this Section. 5. Air Dispersion Modeling and Performance Testing a. The air dispersion model used to determine the dispersion factor in Subparagraphs D.3.b and 4.d of this Section shall be appropriate for the geographical, physical, and population characteristics at the sewage sludge incinerator site. The performance test used to determine the control efficiencies in Subparagraphs D.3.c and 4.e of this Section shall be appropriate for the type of sewage sludge incinerator.b. For air dispersion modeling initiated after September 3, 1999, the modeling results shall be submitted to the administrative authority 30 days after completion of the modeling. In addition to the modeling results, the submission shall include a description of the air dispersion model and the values used for the model parameters.c. The following procedures, at a minimum, shall apply in conducting performance tests to determine the control efficiencies in Subparagraphs D.3.c and 4.e of this Section after September 3, 1999: i. the performance test shall be conducted under representative sewage sludge incinerator conditions at the highest expected sewage sludge feed rate within the design capacity of the sewage sludge incinerator;ii. the administrative authority shall be notified at least 30 days prior to any performance test so the administrative authority may have the opportunity to observe the test. The notice shall include a test protocol with incinerator operating conditions and a list of test methods to be used; andiii. each performance test shall consist of three separate runs using the applicable test method. The control efficiency for a pollutant shall be the arithmetic mean of the control efficiencies for the pollutant from the three runs.d. The pollutant limits in Paragraphs D.3 and 4 of this Section shall be submitted to the administrative authority no later than 30 days after completion of the air dispersion modeling and performance test.e. Significant changes in geographic or physical characteristics at the incinerator site or in incinerator operating conditions require new air dispersion modeling or performance testing to determine a new dispersion factor or a new control efficiency that will be used to calculate revised pollutant limits.6. Standards for Particulate Matter a. No owner or operator of any sewage sludge incinerator subject to the provisions of this Section shall discharge or cause the discharge into the atmosphere of:i. particulate matter at a rate in excess of 0.65 g/kg dry sewage sludge input (1.30 lb/ton dry sewage sludge input); andii. any gases that exhibit 20 percent opacity or greater.b. The owner or operator of a sewage sludge incinerator shall determine compliance with the particulate matter emission standards in Subparagraph D.6.a of this Section as follows:i. the emission rate (E) of particulate matter for each run shall be computed using the following equation: Click Here To View Image
where:
E = emission rate of particulate matter, g/kg (lb/ton) of dry sewage sludge input
Cs = concentration of particulate matter, g/dscm (g/dscf)
Qsd = volumetric flow rate of effluent gas, dscm/hr (dscf/hr)
S = charging rate of dry sewage sludge during the run, kg/hr (lb/hr)
K = conversion factor, 1.0 g/g [4.409 lb2/(g-ton)]
ii. Method 5 ( 40 CFR Part 60, Appendix A-3, incorporated by reference in LAC 33:III.3003) shall be used to determine the particulate matter concentration (Cs) and the volumetric flow rate (Qsd) of the effluent gas. The sampling time and sample volume for each run shall be at least 60 minutes and 0.90 dscm (31.8 dscf);iii. the dry sewage sludge charging rate (S) for each run shall be computed using either of the following equations: Click Here To View Image
Click Here To View Image
where:
S = charging rate of dry sewage sludge, kg/hr (lb/hr)
Sm = total mass of sewage sludge charged, kg (lb)
Rdm = average mass of dry sewage sludge per unit mass of sludge charged, mg/mg (lb/lb) [THETA] = duration of run, in minutes
Km = conversion factor, 60 min/hr
Sv = total volume of sewage sludge charged, m3 (gal)
Rdv = average mass of dry sewage sludge per unit volume of sewage charged, mg/Liter (lb/ft3)
Kv = conversion factor, 60 X 10-3 (liter-kg-min)/(m3-mg-hr) [8.021 (ft3-min)/(gal-hr)]
iv. the flow measuring device of Paragraph F.2 of this Section shall be used to determine the total mass (Sm) or volume (Sv) of sewage sludge charged to the incinerator during each run. If the flow measuring device is on a time rate basis, readings shall be taken and recorded at 5-minute intervals during the run and the total charge of sewage sludge shall be computed using the following equations, as applicable: Click Here To View Image
Click Here To View Image
where:
Qmi = average mass flow rate calculated by averaging the flow rates at the beginning and end of each interval "i", kg/min (gal/min)
Qvi = average volume flow rate calculated by averaging the flow rates at the beginning and end of each interval "i", m3/min (gal/min) [THETA] i = duration of interval "i", min
v. samples of the sewage sludge charged to the incinerator shall be collected in nonporous jars at the beginning of each run and at approximately 1-hour intervals thereafter until the test ends, and Part 2540, G. Total, Fixed, and Volatile Solids in Solid and Semisolid Samples (the test method indicated in LAC 33:IX.7301.I.2.g) shall be used to determine dry sewage sludge content of each sample (total solids residue), except that: (a). evaporating dishes shall be ignited to at least 103°C rather than the 550°C specified in Step 3(a)(1);(b). determination of volatile residue, Step 3(b) may be deleted;(c). the quantity of dry sewage sludge per unit sewage sludge charged shall be determined in terms of mg/Liter (lb/ft3) or mg/mg (lb/lb); and(d). the average dry sewage sludge content shall be the arithmetic average of all the samples taken during the run; andvi. Method 9 ( 40 CFR 60, Appendix A-4, incorporated by reference in LAC 33:III.3003) shall be used to determine opacity. E. Operational Standard- Total Hydrocarbons 1. The total hydrocarbons concentration in the exit gas from a sewage sludge incinerator shall be corrected for 0 percent moisture by multiplying the measured total hydrocarbons concentration by the correction factor calculated using Equation (7). Click Here To View Image
where:
X = decimal fraction of the percent moisture in the sewage sludge incinerator exit gas in hundredths
2. The total hydrocarbons concentration in the exit gas from a sewage sludge incinerator shall be corrected to 7 percent oxygen by multiplying the measured total hydrocarbons concentration by the correction factor calculated using Equation (8). Click Here To View Image
where:
Y = percent oxygen concentration in the sewage sludge incinerator stack exit gas (dry volume/dry volume)
3. The monthly average concentration for total hydrocarbons in the exit gas from a sewage sludge incinerator stack, corrected for 0 percent moisture using the correction factor from Equation (7) and to 7 percent oxygen using the correction factor from Equation (8), shall not exceed 100 parts per million on a volumetric basis when measured using the instrument required by Paragraph F.5 of this Section. F. Management Practices 1. The owner or operator of a sewage sludge incinerator shall provide access to the sewage sludge charged so that a well-mixed representative grab sample of the sewage sludge can be obtained.2. A flow measuring device that can be used to determine either the mass or volume of sewage sludge charged to the incinerator shall be installed, calibrated, maintained, and properly operated. a. The flow measuring device shall be certified by the manufacturer to have an accuracy of +-5 percent over its operating range.b. The flow measuring device shall be operated continuously and data recorded during all periods of operation of the incinerator, unless the administrative authority specifies otherwise.3. A weighing device for determining the mass of any municipal solid waste charged to the incinerator when sewage sludge and municipal solid waste are incinerated together shall be installed, calibrated, maintained, and properly operated. The weighing device shall have an accuracy of +-5 percent over its operating range.4. For incinerators equipped with a wet scrubbing device, a monitoring device that continuously measures and records the pressure drop of the gas flow through the wet scrubbing device shall be installed, calibrated, maintained, and properly operated. a. Where a combination of wet scrubbers is used in series, the pressure drop of the gas flow through the combined system shall be continuously monitored.b. The device used to monitor scrubber pressure drop shall be certified by the manufacturer to be accurate within +-250 pascals (+-1 inch water gauge) and shall be calibrated on an annual basis in accordance with the manufacturer's instructions.5. An instrument that continuously measures and records the total hydrocarbons concentration in the sewage sludge incinerator stack exit gas shall be installed, calibrated, operated, and maintained for a sewage sludge incinerator. The total hydrocarbons instrument shall employ a flame ionization detector, have a heated sampling line maintained at a temperature of 150°C or higher at all times, and be calibrated at least once every 24-hour operating period using propane.6. An instrument that continuously measures and records the oxygen concentration in the sewage sludge incinerator stack exit gas shall be installed, calibrated, operated, and maintained for a sewage sludge incinerator. a. The oxygen monitoring device shall be located upstream of any rabble shaft cooling air inlet into the incinerator exhaust gas stream, fan, ambient air recirculation damper, or any other source of dilution air.b. The oxygen monitoring device shall be certified by the manufacturer to have a relative accuracy of +-5 percent over its operating range and shall be calibrated according to method(s) prescribed by the manufacturer at least once each 24-hour operating period.7. An instrument that continuously measures and records information used to determine the moisture content in the sewage sludge incinerator stack exit gas shall be installed, calibrated, operated, and maintained for a sewage sludge incinerator.8. An instrument that continuously records combustion temperature at every hearth in multiple hearth furnaces, in the bed and outlet of fluidized bed incinerators, and in the drying, combustion, and cooling zones of electric incinerators shall be installed, calibrated, maintained, and properly operated. a. For multiple hearth furnaces, a minimum of one thermocouple shall be installed in each hearth in the cooling and drying zones, and a minimum of two thermocouples shall be installed in each hearth in the combustion zone.b. For electric incinerators, a minimum of one thermocouple shall be installed in the drying zone and one in the cooling zone, and a minimum of two thermocouples shall be installed in the combustion zone.c. Each temperature measuring device shall be certified by the manufacturer to have an accuracy of +-5 percent over its operating range.d. Operation of a sewage sludge incinerator shall not cause the operating combustion temperature for the sewage sludge incinerator to exceed the performance test combustion temperature by more than 20 percent.9. A device for measuring the fuel flow to the incinerator shall be installed, calibrated, maintained, and properly operated.a. The fuel flow measuring device shall be certified by the manufacturer to have an accuracy of +-5 percent over its operating range.b. The fuel flow measuring device shall be operated continuously and data recorded during all periods of operation of the incinerator, unless the administrative authority specifies otherwise.10. An air pollution control device shall: a. be appropriate for the type of sewage sludge incinerator, and the operating parameters for the air pollution control device shall be adequate to indicate proper performance of the air pollution control device; andb. be operated so as not to cause a significant exceedance of the average value for the air pollution control device operating parameters from the performance test required by Subparagraphs D.3.c and 4.e of this Section, nor shall the operation of the air pollution control device violate any other requirements of this Section to which the air pollution control device is subjected.11. The permittee shall collect and analyze sewage sludge fed to a sewage sludge incinerator for dry sludge content and volatile solids content using the method specified at Clause D.6.b.v of this Section, except that the determination of volatile solids, Step (3)(b) of the method, shall not be deleted.12. Sewage sludge shall not be fired in a sewage sludge incinerator if it is likely to adversely affect a threatened or endangered species listed under Section 4 of the Endangered Species Act, or its designated critical habitat.13. The instruments required in Paragraphs F.2-9 of this Section shall be appropriate for the type of sewage sludge incinerator.14. The administrative authority may exempt the owner or operator of any multiple hearth, fluidized bed, or electric sewage sludge incinerator from the daily sampling and analysis of sludge feed requirements in Paragraph F.11 and Subparagraph G.1.d of this Section and from the recordkeeping requirement in Subparagraph H.2.p of this Section for the volatile solids content, only, of the sewage sludge charged to the incinerator during all periods of this incinerator following the performance test if: a. the particulate matter emission rate measured during the performance test required under Paragraph C.4 of this Section is less than or equal to 0.38 g/kg of dry sewage sludge input (0.75 lb/ton); andb. the administrative authority determines that the requirements will not be necessary to evaluate the effects upon the environment and human health resulting from the emissions from the sewage sludge incinerator. G. Frequency of Monitoring. Except as specified otherwise in this Section, the frequency of monitoring shall be as follows. 1. Sewage Sludge a. The frequency of monitoring for beryllium shall be as required in Subpart C of 40 CFR Part 61 (as incorporated by reference in LAC 33:III.5116), and for mercury as required in Subpart E of 40 CFR Part 61 (as incorporated by reference in LAC 33:III.5116).b. The frequency of monitoring for arsenic, cadmium, chromium, lead, and nickel in sewage sludge fed to a sewage sludge incinerator shall be the frequency in Table 1 of LAC 33:IX.7311.G. Table 1 of LAC 33:IX.7311.G |
Frequency of Monitoring-Incineration |
Amount of Sewage Sludge1 (metric tons per 365-day period) | Frequency |
Greater than zero but less than 290 | Once per year |
Equal to or greater than 290 but less than 1,500 | Once per quarter (4 times per year) |
Equal to or greater than 1,500 but less than 15,000 | Once per 60 days (6 times per year) |
Equal to or greater than 15,000 | Once per month (12 times per year) |
1 Amount of sewage sludge fired in a sewage sludge incinerator (dry weight basis) |
c. After the sewage sludge has been monitored for two years at the frequency in Table 1 of LAC 33:IX.7311.G, the administrative authority may reduce the frequency of monitoring for arsenic, cadmium, chromium, lead, and nickel.d. The frequency of monitoring for dry sewage sludge content and volatile solids content of the sewage sludge shall be once per day, as a grab sample of the sewage sludge fed to the incinerator.2. Total Hydrocarbons, Oxygen Concentration, Moisture Content, and Combustion Temperatures. The total hydrocarbons concentration and oxygen concentration in the exit gas from a sewage sludge incinerator stack, the information used to measure moisture content in the exit gas, and the combustion temperatures for the sewage sludge incinerator shall be monitored continuously.3. Air Pollution Control Device Operating Parameters. Unless specified otherwise in this Chapter, the frequency of monitoring for the appropriate air pollution control device operating parameters shall be daily.4. The frequency of monitoring shall be as specified in this Section for any performance testing or other sampling requirements not covered above. If the frequency of monitoring is not specified, then the frequency of monitoring shall be as specified by the administrative authority. H. Recordkeeping 1. If the owner/operator of a sewage sludge incinerator is the person who prepares sewage sludge, the owner/operator of the sewage sludge incinerator shall keep a record of the annual production of sewage sludge (i.e., dry ton or dry metric tons) and of the sewage sludge management practice used and retain such record for a period of five years.2. The owner/operator of a sewage sludge incinerator shall develop the following information and shall retain this information for five years:a. the concentration of lead, arsenic, cadmium, chromium, and nickel in the sewage sludge fed to the sewage sludge incinerator;b. the total hydrocarbons concentrations in the exit gas from the sewage sludge incinerator stack;c. information that indicates the requirements in the national emission standard for beryllium in Subpart C of 40 CFR Part 61 (as incorporated by reference at LAC 33:III.5116) are met;d. information that indicates the requirements in the national emission standard for mercury in Subpart E of 40 CFR Part 61 (as incorporated by reference at LAC 33:III.5116) are met;e. the operating combustion temperatures for the sewage sludge incinerator;f. values for the air pollution control device operating parameters;g. the oxygen concentration and information used to measure moisture content in the exit gas from the sewage sludge incinerator stack;h. the sewage sludge feed rate;i. the stack height for the sewage sludge incinerator;j. the dispersion factor for the site where the sewage sludge incinerator is located;k. the control efficiency for lead, arsenic, cadmium, chromium, and nickel for each sewage sludge incinerator;l. the risk-specific concentration for chromium calculated using Equation (6), if applicable;m. a calibration and maintenance log for the instruments used to measure the total hydrocarbons concentration and oxygen concentration in the exit gas from the sewage sludge incinerator stack, the information needed to determine moisture content in the exit gas, and the combustion temperatures;n. results of the particulate matter testing required in Subparagraph D.6.b of this Section;o. for incinerators equipped with a wet scrubbing device, a record of the measured pressure drop of the gas flow through the wet scrubbing device, as required by Paragraph F.4 of this Section;p. a record of the rate of sewage sludge fed to the incinerator, the fuel flow to the incinerator, and the total solids and volatile solids content of the sewage sludge charged to the incinerator; andq. results of all applicable performance tests required in this Section. I.Reporting 1. If the owner/operator of a sewage sludge incinerator is the person who prepares the sewage sludge, the owner/operator shall submit the information in Paragraph H.1 of this Section to the administrative authority on February 19 of each year.2. The owner/operator of a sewage sludge incinerator shall submit the information in Subparagraphs H.2.a-q of this Section to the administrative authority on February 19 of each year.3. In addition to the reporting requirements in Paragraphs I.1 and 2 of this Section, the owner/operator of any multiple hearth, fluidized bed, or electric sewage sludge incinerator subject to the provisions of this Chapter shall submit to the administrative authority on February 19 and August 19 of each year (semiannually) a report in writing that contains the following: a. a record of average scrubber pressure drop measurements for each period of 15 minutes duration or more during which the pressure drop of the scrubber was less than, by a percentage specified below, the average scrubber pressure drop measured during the most recent performance test. The percent reduction in scrubber pressure drop for which a report is required shall be determined as follows: i. for incinerators that achieved an average particulate matter emission rate of 0.38 kg/mg (0.75 lb/ton) dry sewage sludge input or less during the most recent performance test, a scrubber pressure drop reduction of more than 30 percent from the average scrubber pressure drop recorded during the most recent performance test shall be reported; andii. for incinerators that achieved an average particulate matter emission rate of greater than 0.38 kg/mg (0.75 lb/ton) dry sewage sludge input during the most recent performance test, a percent reduction in pressure drop greater than that calculated according to the following equation shall be reported: Click Here To View Image
where:
P = percent reduction in pressure drop
E = average particulate matter emissions (kg/megagram)
b. a record of average oxygen content in the incinerator exhaust gas for each period of 1-hour duration or more that the oxygen content of the incinerator exhaust gas exceeds the average oxygen content measured during the most recent performance test by more than 3 percent. 4. The owner or operator of any multiple hearth, fluidized bed, or electric sewage sludge incinerator from which the average particulate matter emission rate measured during the performance test required at Paragraph C.4 of this Section exceeds 0.38 g/kg of dry sewage sludge input (0.75 lb/ton of dry sewage sludge input) shall include in the report for each calendar day that a decrease in scrubber pressure drop or increase in oxygen content of exhaust gas is reported, a record of the following: a. scrubber pressure drop averaged over each 1-hour incinerator operating period;b. oxygen content in the incinerator exhaust averaged over each 1-hour incinerator operating period;c. temperatures of every hearth in multiple hearth incinerators, the bed and outlet of fluidized bed incinerators, and the drying, combustion, and cooling zones of electric incinerators averaged over each 1-hour incinerator operating period;d. rate of sewage sludge charged to the incinerator averaged over each 1-hour incinerator operating period;e. incinerator fuel use averaged over each 8-hour incinerator operating period; andf. moisture and volatile solids content of the daily grab sample of sewage sludge charged to the incinerator.5. The owner or operator of any sewage sludge incinerator other than a multiple hearth, fluidized bed, or electric incinerator or any sewage sludge incinerator equipped with a control device other than a wet scrubber shall include in the semiannual report a record of control device operation measurements, as specified in the plan approved under Paragraph C.5 of this Section.La. Admin. Code tit. 33, § IX-7311
Promulgated by the Department of Environmental Quality, Office of Environmental Assessment, Environmental Planning Division, LR 28:809 (April 2002), repromulgated LR 30:233 (February 2004), amended by the Office of the Secretary, Legal Affairs Division, LR 33:2399 (November 2007).AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2074(B)(1)(c) and (B)(3)(e).