Wisconsin Administrative Code
Department of Natural Resources
NR 600-699 - Environmental Protection - Hazardous Waste Management
Chapter NR 666 - Standards For Managing Specific Hazardous Wastes And Specific Types Of Hazardous Waste Management Facilities
Subchapter H - Hazardous Waste Burned in Boilers and Industrial Furnaces
Section NR 666.103 - Interim license standards for burners

Universal Citation: WI Admin Code § NR 666.103

Current through August 26, 2024

(1) PURPOSE, SCOPE, APPLICABILITY.

(a) General.

1. The purpose of this section is to establish minimum national standards for owners and operators of "existing" boilers and industrial furnaces that burn hazardous waste where such standards define the acceptable management of hazardous waste during the period of interim license. The standards of this section apply to owners and operators of existing facilities until either a license is issued under s. NR 666.102(4) or until closure responsibilities identified in this section are fulfilled.

2. "Existing" or "in existence" means a boiler or industrial furnace that on or before August 21, 1991 is either in operation burning or processing hazardous waste or for which construction (including the ancillary facilities to burn or to process the hazardous waste) has commenced. A facility has commenced construction if the owner or operator has obtained the federal, state and local approvals or licenses necessary to begin physical construction; and one of the following applies:

a. A continuous on-site, physical construction program has begun.

b. The owner or operator has entered into contractual obligations-which cannot be canceled or modified without substantial loss-for physical construction of the facility to be completed within a reasonable time.

3. If a boiler or industrial furnace is located at a facility that already has a license or interim license, then the facility shall comply with the applicable regulations dealing with license modifications in s. NR 670.042 or changes in interim license in s. NR 670.072.

(b) Exemptions. The requirements of this section do not apply to hazardous waste and facilities exempt under ss. NR 666.100(2) or 666.108.

(c) Prohibition on burning dioxin-listed wastes. The following hazardous waste listed for dioxin and hazardous waste derived from any of these wastes may not be burned in a boiler or industrial furnace operating under an interim license: F020, F021, F022, F023, F026 and F027.

(d) Applicability of ch. NR 665 standards. Owners and operators of boilers and industrial furnaces that burn hazardous waste and are operating under an interim license are subject to all of the following provisions of ch. NR 665, except as provided otherwise by this section:

1. In subch. A of ch. NR 665 (General), s. NR 665.0004.

2. In subch. B of ch. NR 665 (General facility standards), ss. NR 665.0011 to 665.0017.

3. In subch. C of ch. NR 665 (Preparedness and prevention), ss. NR 665.0031 to 665.0037.

4. In subch. D of ch. NR 665 (Contingency plan and emergency procedures), ss. NR 665.0051 to 665.0056.

5. In subch. E of ch. NR 665 (Manifest system, recordkeeping and reporting), ss. NR 665.0071 to 665.0077, except that ss. NR 665.0071, 665.0072 and 665.0076 do not apply to owners and operators of on-site facilities that do not receive any hazardous waste from off-site sources.

6. In subch. G of ch. NR 665 (Closure and long-term care), ss. NR 665.0111 to 665.0115.

7. In subch. H of ch. NR 665 (Financial requirements), ss. NR 665.0141, 665.0142, 665.0143 and 665.0147 to 665.0148, except that states and the federal government are exempt from s. NR 665.0147.

8. Subchapter BB of ch. NR 665 (Air emission standards for equipment leaks), except s. NR 665.1050(1).

(e) Special requirements for furnaces. The following controls apply during an interim license to industrial furnaces (e.g., kilns, cupolas) that feed hazardous waste for a purpose other than solely as an ingredient (see subd. 2.) at any location other than the hot end where products are normally discharged or where fuels are normally fired:

1. `Controls.'

a. The hazardous waste shall be fed at a location where combustion gas temperatures are at least 1800 °F.

b. The owner or operator shall determine that adequate oxygen is present in combustion gases to combust organic constituents in the waste and retain documentation of such determination in the facility record.

c. For cement kiln systems, the hazardous waste shall be fed into the kiln.

d. The hydrocarbon controls of s. NR 666.104(3) or sub. (3) (e) apply upon certification of compliance under sub. (3) irrespective of the CO level achieved during the compliance test.

2. `Burning hazardous waste solely as an ingredient.' A hazardous waste is burned for a purpose other than solely as an ingredient if it meets one of these criteria:

a. The hazardous waste has a total concentration of nonmetal compounds listed in ch. NR 661 Appendix VIII, exceeding 500 ppm by weight, as-fired, and so is considered to be burned for destruction. The concentration of nonmetal compounds in a waste as-generated may be reduced to the 500 ppm limit by bona fide treatment that removes or destroys nonmetal constituents. Blending for dilution to meet the 500 ppm limit is prohibited and documentation that the waste has not been impermissibly diluted shall be retained in the facility record.

b. The hazardous waste has a heating value of 5,000 Btu/lb or more, as-fired, and so is considered to be burned as fuel. The heating value of a waste as-generated may be reduced to below the 5,000 Btu/lb limit by bona fide treatment that removes or destroys organic constituents. Blending to augment the heating value to meet the 5,000 Btu/lb limit is prohibited and documentation that the waste has not been impermissibly blended shall be retained in the facility record.

(f) Restrictions on burning hazardous waste that is not a fuel. Prior to certification of compliance under sub. (3), owners and operators may not feed hazardous waste that has a heating value less than 5,000 Btu/lb, as-generated, (except that the heating value of a waste as-generated may be increased to above the 5,000 Btu/lb limit by bona fide treatment; however, blending to augment the heating value to meet the 5,000 Btu/lb limit is prohibited and records shall be kept to document that impermissible blending has not occurred) in a boiler or industrial furnace, except that:

1. Hazardous waste may be burned solely as an ingredient.

2. Hazardous waste may be burned for purposes of compliance testing (or testing prior to compliance testing) for a total period of time not to exceed 720 hours.

3. Such waste may be burned if the department has documentation to show that, prior to August 21, 1991, all of the following conditions were met:

a. The boiler or industrial furnace was operating under the interim license standards for incinerators provided by subch. O of ch. NR 665, or the interim license standards for thermal treatment units provided by subch. P of ch. NR 665.

b. The boiler or industrial furnace met the interim license eligibility requirements under s. NR 670.070 for subch. O or subch. P of ch. NR 665.

c. Hazardous waste with a heating value less than 5,000 Btu/lb was burned prior to that date.

4. Such waste may be burned in a halogen acid furnace if the waste was burned as an excluded ingredient under s. NR 661.0002(5) prior to February 21, 1991 and documentation is kept on file supporting this claim.

(g) Direct transfer to the burner. If hazardous waste is directly transferred from a transport vehicle to a boiler or industrial furnace without the use of a storage unit, the owner and operator shall comply with s. NR 666.111.

(2) CERTIFICATION OF PRECOMPLIANCE.

(a) General. The owner or operator shall provide complete and accurate information specified in par. (b) to the department on or before August 21, 1991, and shall establish limits for the operating parameters specified in par. (c). Such information is termed a "certification of precompliance" and constitutes a certification that the owner or operator has determined that, when the facility is operated within the limits specified in par. (c), the owner or operator believes that, using best engineering judgment, emissions of particulate matter, metals, HCl and Cl 2 are not likely to exceed the limits provided by ss. NR 666.105, 666.106 and 666.107. The facility may burn hazardous waste only under the operating conditions that the owner or operator establishes under par. (c) until the owner or operator submits a revised certification of precompliance under par. (h) or a certification of compliance under sub.(3), or until a license is issued.

(b) Information required. All of the following information shall be submitted with the certification of precompliance to support the determination that the limits established for the operating parameters identified in par.(c) are not likely to result in an exceedance of the allowable emission rates for particulate matter, metals, HCl and Cl 2:

1. General facility information:

a. EPA facility ID number.

b. Facility name, contact person, telephone number and address.

c. Description of boilers and industrial furnaces burning hazardous waste, including type and capacity of device.

d. A scaled plot plan showing the entire facility and location of the boilers and industrial furnaces burning hazardous waste.

e. A description of the air pollution control system on each device burning hazardous waste, including the temperature of the flue gas at the inlet to the particulate matter control system.

2. Except for facilities complying with the Tier I or adjusted Tier I feed rate screening limits for metals or total chlorine and chloride provided by ss. NR 666.106(2) or (5) and 666.107(2) (a) or (5), respectively, the estimated uncontrolled (at the inlet to the air pollution control system) emissions of particulate matter, each metal controlled by s. NR 666.106, and hydrogen chloride and chlorine, and all of the following information to support such determinations:

a. The feed rate (lb/hr) of ash, chlorine, antimony, arsenic, barium, beryllium, cadmium, chromium, lead, mercury, silver and thallium in each feedstream (hazardous waste, other fuels, industrial furnace feedstocks).

b. The estimated partitioning factor to the combustion gas for the materials identified in subd. 2. a. and the basis for the estimate and an estimate of the partitioning to HCl and Cl 2 of total chloride and chlorine in feed materials. To estimate the partitioning factor, the owner or operator shall use either best engineering judgment or the procedures specified in ch. NR 666 Appendix IX.

c. For industrial furnaces that recycle collected particulate matter (PM) back into the furnace and that will certify compliance with the metals emissions standards under sub. (3) (c) 2. a., the estimated enrichment factor for each metal. To estimate the enrichment factor, the owner or operator shall use either best engineering judgment or the procedures specified in "Alternative Methodology for Implementing Metals Controls" in ch. NR 666 Appendix IX.

d. If best engineering judgment is used to estimate partitioning factors or enrichment factors under subd. 2. b. or c. respectively, the basis for the judgment. When best engineering judgment is used to develop or evaluate data or information and make determinations under this section, the determinations shall be made by a qualified, registered professional engineer and a certification of the engineer's determinations in accordance with s. NR 670.011(4) shall be provided in the certification of precompliance.

3. For facilities complying with the Tier I or adjusted Tier I feed rate screening limits for metals or total chlorine and chloride provided by ss. NR 666.106(2) or (5) and 666.107(2) (a) or (5), the feed rate (lb/hr) of total chloride and chlorine, antimony, arsenic, barium, beryllium, cadmium, chromium, lead, mercury, silver and thallium in each feed stream (hazardous waste, other fuels, industrial furnace feedstocks).

4. For facilities complying with the Tier II or Tier III emission limits for metals or HCl and Cl 2 (under ss. NR 666.106(3) or (4) or 666.107(2) (b) or (3)), the estimated controlled (outlet of the air pollution control system) emissions rates of particulate matter, each metal controlled by s. NR 666.106, and HCl and Cl 2, and the following information to support such determinations:

a. The estimated air pollution control system (APCS) removal efficiency for particulate matter, HCl, Cl 2, antimony, arsenic, barium, beryllium, cadmium, chromium, lead, mercury, silver and thallium.

b. To estimate APCS removal efficiency, the owner or operator shall use either best engineering judgment or the procedures prescribed in ch. NR 666 Appendix IX.

c. If best engineering judgment is used to estimate APCS removal efficiency, the basis for the judgment. Use of best engineering judgment shall be in conformance with provisions of subd. 2. d.

5. Determination of allowable emissions rates for HCl, Cl 2, antimony, arsenic, barium, beryllium, cadmium, chromium, lead, mercury, silver and thallium, and the following information to support such determinations:

a. For all facilities, all of the following:

1) Physical stack height.

2) Good engineering practice stack height as defined by 40 CFR 51.100(ii).

3) Maximum flue gas flow rate.

4) Maximum flue gas temperature.

5) Attach a US geological service topographic map (or equivalent) showing the facility location and surrounding land within 5 km of the facility.

6) Identify terrain type: complex or noncomplex.

7) Identify land use: urban or rural.

b. For owners and operators using Tier III site specific dispersion modeling to determine allowable levels under s. NR 666.106(4) or 666.107(3), or adjusted Tier I feed rate screening limits under s. NR 666.106(5) or 666.107(5):

1) Dispersion model and version used.

2) Source of meterological data.

3) The dilution factor in micrograms per cubic meter per gram per second of emissions for the maximum annual average off-site (unless on-site is required) ground level concentration (MEI location).

4) Indicate the MEI location on the map required under subd. 5. a. 5).

6. For facilities complying with the Tier II or III emissions rate controls for metals or HCl and Cl 2, a comparison of the estimated controlled emissions rates determined under subd. 4. with the allowable emission rates determined under subd. 5.

7. For facilities complying with the Tier I (or adjusted Tier I) feed rate screening limits for metals or total chloride and chlorine, a comparison of actual feed rates of each metal and total chlorine and chloride determined under subd. 3. to the Tier I allowable feed rates.

8. For industrial furnaces that feed hazardous waste for any purpose other than solely as an ingredient (as defined by sub. (1) (e) 2.) at any location other than the product discharge end of the device, documentation of compliance with sub. (1) (e) 1. a., b. and c.

9. For industrial furnaces that recycle collected particulate matter (PM) back into the furnace and that will certify compliance with the metals emissions standards under sub. (3) (c) 2. a., both of the following:

a. The applicable particulate matter standard in lb/hr.

b. The precompliance limit on the concentration of each metal in collected PM.

(c) Limits on operating conditions. The owner and operator shall establish limits on the following parameters consistent with the determinations made under par. (b) and certify (under provisions of par. (i)) to the department that the facility will operate within the limits during interim license when there is hazardous waste in the unit until revised certification of precompliance under par. (h) or certification of compliance under sub. (3):

1. Feed rate of total hazardous waste and (unless complying with the Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5)) pumpable hazardous waste.

2. Feed rate of each metal in all of the following feed streams:

a. Total feed streams, except that industrial furnaces that comply with the alternative metals implementation approach under par. (d) shall specify limits on the concentration of each metal in collected particulate matter in lieu of feed rate limits for total feedstreams.

b. Total hazardous waste feed, unless complying with the Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5).

c. Total pumpable hazardous waste feed, unless complying with the Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5).

3. Total feed rate of chlorine and chloride in total feed streams.

4. Total feed rate of ash in total feed streams, except that the ash feed rate for cement kilns and light-weight aggregate kilns is not limited.

5. Maximum production rate of the device in appropriate units when producing normal product, unless complying with the Tier I or adjusted Tier I feed rate screening limits for chlorine under s. NR 666.107(2) (a) or (5) and for all metals under s. NR 666.106(2) or (5), and the uncontrolled particulate emissions do not exceed the standard under s. NR 666.105.

(d) Operating requirements for furnaces that recycle PM. Owners and operators of furnaces that recycle collected particulate matter (PM) back into the furnace and that will certify compliance with the metals emissions controls under sub. (3) (c) 2. a. shall comply with the special operating requirements provided in "Alternative Methodology for Implementing Metals Controls" in ch. NR 666 Appendix IX.

(e) Measurement of feed rates and production rate.

1. `General requirements.' Limits on each of the parameters specified in par. (c) (except for limits on metals concentrations in collected particulate matter (PM) for industrial furnaces that recycle collected PM) shall be established and continuously monitored under either of the following methods:

a. A limit for a parameter may be established and continuously monitored and recorded on an instantaneous basis (i.e., the value that occurs at any time) not to be exceeded at any time.

b. A limit for a parameter may be established and continuously monitored on an hourly rolling average basis defined as follows:

1) A continuous monitor is one which continuously samples the regulated parameter without interruption, and evaluates the detector response at least once each 15 seconds, and computes and records the average value at least every 60 seconds.

2) An hourly rolling average is the arithmetic mean of the 60 most recent 1-minute average values recorded by the continuous monitoring system.

2. `Rolling average limits for carcinogenic metals and lead.' Feed rate limits for the carcinogenic metals (arsenic, beryllium, cadmium and chromium) and lead may be established either on an hourly rolling average basis as prescribed by subd. 1. b. or on (up to) a 24 hour rolling average basis. If the owner or operator elects to use an averaging period from 2 to 24 hours:

a. The feed rate of each metal shall be limited at any time to 10 times the feed rate that would be allowed on a hourly rolling average basis.

b. The continuous monitor shall meet all of the following specifications:

2) The rolling average for the selected averaging period is defined as the arithmetic mean of one hour block averages for the averaging period. A one hour block average is the arithmetic mean of the one minute averages recorded during the 60-minute period beginning at one minute after the beginning of preceding clock hour.

3. `Feed rate limits for metals, total chloride and chlorine, and ash.' Feed rate limits for metals, total chlorine and chloride, and ash are established and monitored by knowing the concentration of the substance (i.e., metals, chloride and chlorine, and ash) in each feedstream and the flow rate of the feedstream. To monitor the feed rate of these substances, the flow rate of each feedstream shall be monitored under the continuous monitoring requirements of subd. 1. and 2.

(f) Public notice requirements at precompliance. On or before August 21, 1991 the owner or operator shall submit a notice with the following information for publication in a major local newspaper of general circulation and send a copy of the notice to the appropriate units of state and local government. The owner and operator shall provide to the department with the certification of precompliance evidence of submitting the notice for publication. The notice, which shall be entitled "Notice of Certification of Precompliance with Hazardous Waste Burning Requirements of s. NR 666.103(2), Wis. Adm. Code", shall include all of the following:

1. Name and address of the owner and operator of the facility as well as the location of the device burning hazardous waste.

2. Date that the certification of precompliance is submitted to the department.

3. Brief description of the regulatory process required to comply with the interim license requirements including required emissions testing to demonstrate conformance with emissions standards for organic compounds, particulate matter, metals, HCl and Cl 2.

4. Types and quantities of hazardous waste burned including, but not limited to, source, whether solids or liquids, as well as an appropriate description of the waste.

5. Type of device or devices in which the hazardous waste is burned including a physical description and maximum production rate of each device.

6. Types and quantities of other fuels and industrial furnace feedstocks fed to each unit.

7. Brief description of the basis for this certification of precompliance as specified in par. (b).

8. Locations where the record for the facility can be viewed and copied by interested parties. These records and locations shall at a minimum include both of the following:

a. The administrative record kept by the department office where the supporting documentation was submitted or another location designated by the department.

b. The BIF correspondence file kept at the facility site where the device is located. The correspondence file shall include all correspondence between the facility and the department, state and local regulatory officials, including copies of all certifications and notifications, such as the precompliance certification, precompliance public notice, notice of compliance testing, compliance test report, compliance certification, time extension requests and approvals or denials, enforcement notifications of violations, and copies of EPA and state site visit reports submitted to the owner or operator.

9. Notification of the establishment of a facility mailing list whereby interested parties may notify the department that they wish to be placed on the mailing list to receive future information and notices about this facility.

10. Location (mailing address) of the department bureau of waste management where further information can be obtained on department regulation of hazardous waste burning.

(g) Monitoring other operating parameters. When the monitoring systems for the operating parameters listed in sub. (3) (a) 5. to 13. are installed and operating in conformance with vendor specifications or (for CO, HC and oxygen) specifications provided by ch. NR 666 Appendix IX, as appropriate, the parameters shall be continuously monitored and records shall be maintained in the operating record.

(h) Revised certification of precompliance. The owner or operator may revise at any time the information and operating conditions documented under pars. (b) and (c) in the certification of precompliance by submitting a revised certification of precompliance under procedures provided by those paragraphs.

1. The public notice requirements of par. (f) do not apply to recertifications.

2. The owner and operator shall operate the facility within the limits established for the operating parameters under par. (c) until a revised certification is submitted under this paragraph or a certification of compliance is submitted under sub. (3).

(i) Certification of precompliance statement. The owner or operator shall include the following signed statement with the certification of precompliance submitted to the department:

"I certify under penalty of law that this information was prepared under my direction or supervision in accordance with a system designed to ensure that qualified personnel properly gathered and evaluated the information and supporting documentation. Copies of all emissions tests, dispersion modeling results and other information used to determine conformance with s. NR 666.103(2) are available at the facility and can be obtained from the facility contact person listed above. Based on my inquiry of the person or persons who manages the facility, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

I also acknowledge that the operating limits established in this certification pursuant to s. NR 666.103(2) (c) and (d) are enforceable limits at which the facility can legally operate during interim license until:

(1) A revised certification of precompliance is submitted,

(2) a certification of compliance is submitted, or

(3) an operating license is issued."

(3) CERTIFICATION OF COMPLIANCE. The owner or operator shall conduct emissions testing to document compliance with the emissions standards of ss. NR 666.104(2) to (5), 666.105, 666.106, 666.107 and sub. (1) (e) 1. d., under the procedures prescribed by this subsection, except under extensions of time provided by par. (g). Based on the compliance test, the owner or operator shall submit to the department on or before August 21, 1992 a complete and accurate "certification of compliance" (under par. (d)) with those emission standards establishing limits on the operating parameters specified in par. (a).

(a) Limits on operating conditions. The owner or operator shall establish limits on the following parameters based on operations during the compliance test (under procedures prescribed in par. (d) 4.) or as otherwise specified and include these limits with the certification of compliance. The boiler or industrial furnace shall be operated in accordance with these operating limits and the applicable emissions standards of ss. NR 666.104(2) to (5), 666.105, 666.106, 666.107 and sub. (1) (e) 1. d. at all times when there is hazardous waste in the unit.

1. Feed rate of total hazardous waste and (unless complying with the Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5) and the total chlorine and chloride feed rate screening limits under s. NR 666.107(2) or (5)), pumpable hazardous waste.

2. Feed rate of each metal in the following feedstreams:

a. Total feedstreams, except that:

1) Facilities that comply with Tier I or adjusted Tier I metals feed rate screening limits may set their operating limits at the metals feed rate screening limits determined under s. NR 666.106(2) or (5).

2) Industrial furnaces that shall comply with the alternative metals implementation approach under par. (c) 2. shall specify limits on the concentration of each metal in the collected particulate matter in lieu of feed rate limits for total feedstreams.

b. Total hazardous waste feed (unless complying with the Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5)).

c. Total pumpable hazardous waste feed (unless complying with the Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5)).

3. Total feed rate of chlorine and chloride in total feed streams, except that facilities that comply with Tier I or adjusted Tier I feed rate screening limits may set their operating limits at the total chlorine and chloride feed rate screening limits determined under s. NR 666.107(2) (a) or (5).

4. Total feed rate of ash in total feed streams, except that the ash feed rate for cement kilns and light-weight aggregate kilns is not limited.

5. Carbon monoxide concentration, and where required, hydrocarbon concentration in stack gas. When complying with the CO controls of s. NR 666.104(2), the CO limit is 100 ppmv, and when complying with the HC controls of s. NR 666.104(3), the HC limit is 20 ppmv. When complying with the CO controls of s. NR 666.104(3), the CO limit is established based on the compliance test.

6. Maximum production rate of the device in appropriate units when producing normal product, unless complying with the Tier I or adjusted Tier I feed rate screening limits for chlorine under s. NR 666.107(2) (a) or (5) and for all metals under s. NR 666.106(2) or (5), and the uncontrolled particulate emissions do not exceed the standard under s. NR 666.105.

7. Maximum combustion chamber temperature where the temperature measurement is as close to the combustion zone as possible and is upstream of any quench water injection (unless complying with the Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5)).

8. Maximum flue gas temperature entering a particulate matter control device (unless complying with Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5) and the total chlorine and chloride feed rate screening limits under s. NR 666.107(2) or (5)).

9. For systems using wet scrubbers, including wet ionizing scrubbers (unless complying with Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) (a) or (5)) :

a. Minimum liquid to flue gas ration.

b. Minimum scrubber blowdown from the system or maximum suspended solids content of scrubber water.

c. Minimum pH level of the scrubber water.

10. For systems using venturi scrubbers, the minimum differential gas pressure across the venturi (unless complying with the Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5) and the total chlorine and chloride feed rate screening limits under s. NR 666.107(2) (a) or (5)).

11. For systems using dry scrubbers (unless complying with the Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5) and the total chlorine and chloride feed rate screening limits under s. NR 666.107(2) (a) or (5)) :

a. Minimum caustic feed rate.

b. Maximum flue gas flow rate.

12. For systems using wet ionizing scrubbers or electrostatic precipitators (unless complying with the Tier I or adjusted Tier I metals feed rate screening limits under s. NR 666.106(2) or (5) and the total chlorine and chloride feed rate screening limits under s. NR 666.107(2) (a) or (5)) :

a. Minimum electrical power in kilovolt amperes (kVA) to the precipitator plates.

b. Maximum flue gas flow rate.

13. For systems using fabric filters (baghouses), the minimum pressure drop (unless complying with the Tier I or adjusted Tier I metal feed rate screening limits under s. NR 666.106(2) or (5) and the total chlorine and chloride feed rate screening limits under s. NR 666.107(2) (a) or (5)).

(b) Prior notice of compliance testing. At least 30 days prior to the compliance testing required by par. (c), the owner or operator shall notify the department and submit all of the following information:

1. General facility information including:

a. EPA facility ID number.

b. Facility name, contact person, telephone number and address.

c. Person responsible for conducting compliance test, including company name, address and telephone number, and a statement of qualifications.

d. Planned date of the compliance test.

2. Specific information on each device to be tested including:

a. Description of boiler or industrial furnace.

b. A scaled plot plan showing the entire facility and location of the boiler or industrial furnace.

c. A description of the air pollution control system.

d. Identification of the continuous emission monitors that are installed, including:

1) Carbon monoxide monitor.

2) Oxygen monitor.

3) Hydrocarbon monitor, specifying the minimum temperature of the system and, if the temperature is less than 150 °C, an explanation of why a heated system is not used (see par. (e)) and a brief description of the sample gas conditioning system.

e. Indication of whether the stack is shared with another device that will be in operation during the compliance test.

f. Other information useful to an understanding of the system design or operation.

3. Information on the testing planned, including a complete copy of the test protocol and quality assurance/quality control (QA/QC) plan, and a summary description for each test providing all of the following information at a minimum:

a. Purpose of the test (e.g., demonstrate compliance with emissions of particulate matter).

b. Planned operating conditions, including levels for each pertinent parameter specified in par. (a).

1. `General.' Compliance testing shall be conducted under conditions for which the owner or operator has submitted a certification of precompliance under sub. (2) and under conditions established in the notification of compliance testing required by par. (b). The owner or operator may seek approval on a case-by-case basis to use compliance test data from one unit in lieu of testing a similar onsite unit. To support the request, the owner or operator shall provide a comparison of the hazardous waste burned and other feedstreams, and the design, operation and maintenance of both the tested unit and the similar unit. The department shall provide a written approval to use compliance test data in lieu of testing a similar unit if it finds that the hazardous wastes, the devices and the operating conditions are sufficiently similar, and the data from the other compliance test is adequate to meet the requirements of this subsection.

2. `Special requirements for industrial furnaces that recycle collected PM.' Owners and operators of industrial furnaces that recycle back into the furnace particulate matter (PM) from the air pollution control system shall comply with one of the following procedures for testing to determine compliance with the metals standards of s. NR 666.106(3) or (4):

a. The special testing requirements prescribed in "Alternative Method for Implementing Metals Controls" in ch. NR 666 Appendix IX.

b. Stack emissions testing for a minimum of 6 hours each day while hazardous waste is burned during an interim license. The testing shall be conducted when burning normal hazardous waste for that day at normal feed rates for that day and when the air pollution control system is operated under normal conditions. During an interim license, hazardous waste analysis for metals content shall be sufficient for the owner or operator to determine if changes in metals content may affect the ability of the facility to meet the metals emissions standards established under s. NR 666.106(3) or (4). Under this option, operating limits (under par. (a)) shall be established during compliance testing under this paragraph only on the following parameters:

1) Feed rate of total hazardous waste.

2) Total feed rate of chlorine and chloride in total feed streams.

3) Total feed rate of ash in total feed streams, except that the ash feed rate for cement kilns and light-weight aggregate kilns is not limited.

4) Carbon monoxide concentration, and where required, hydrocarbon concentration in stack gas.

5) Maximum production rate of the device in appropriate units when producing normal product.

c. Conduct compliance testing to determine compliance with the metals standards to establish limits on the operating parameters of par. (a) only after the kiln system has been conditioned to enable it to reach equilibrium with respect to metals fed into the system and metals emissions. During conditioning, hazardous waste and raw materials having the same metals content as will be fed during the compliance test shall be fed at the feed rates that will be fed during the compliance test.

3. `Conduct of compliance testing.'

a. If compliance with all applicable emissions standards of ss. NR 666.104 to 666.107 is not demonstrated simultaneously during a set of test runs, the operating conditions of additional test runs required to demonstrate compliance with remaining emissions standards shall be as close as possible to the original operating conditions.

b. Prior to obtaining test data for purposes of demonstrating compliance with the applicable emissions standards of ss. NR 666.104 to 666.107 or establishing limits on operating parameters under this section, the facility shall operate under compliance test conditions for a sufficient period to reach steady-state operations. Industrial furnaces that recycle collected particulate matter back into the furnace and that comply with subd. 2. a. or b., however, need not reach steady state conditions with respect to the flow of metals in the system prior to beginning compliance testing for metals.

c. Compliance test data on the level of an operating parameter for which a limit shall be established in the certification of compliance shall be obtained during emissions sampling for the pollutant or pollutants (i.e., metals, PM, HCl/Cl 2, organic compounds) for which the parameter shall be established as specified by par. (a).

(d) Certification of compliance. Within 90 days of completing compliance testing, the owner or operator shall certify to the department compliance with the emissions standards of ss. NR 666.104(2), (3) and (5), 666.105, 666.106, 666.107 and sub. (1) (e) 1. d. The certification of compliance shall include all of the following information:

1. General facility and testing information including:

a. EPA facility ID number.

b. Facility name, contact person, telephone number and address.

c. Person responsible for conducting compliance testing, including company name, address and telephone number, and a statement of qualifications.

d. Date or dates of each compliance test.

e. Description of boiler or industrial furnace tested.

f. Person responsible for quality assurance/quality control (QA/QC), title and telephone number, and statement that procedures prescribed in the QA/QC plan submitted under s. NR 666.103(3) (b) 3. have been followed, or a description of any changes and an explanation of why changes were necessary.

g. Description of any changes in the unit configuration prior to or during testing that would alter any of the information submitted in the prior notice of compliance testing under par. (b), and an explanation of why the changes were necessary.

h. Description of any changes in the planned test conditions prior to or during the testing that alter any of the information submitted in the prior notice of compliance testing under par. (b), and an explanation of why the changes were necessary.

i. The complete report on results of emissions testing.

2. Specific information on each test including:

a. Purpose or purposes of test (e.g., demonstrate conformance with the emissions limits for particulate matter, metals, HCl, Cl 2, and CO).

b. Summary of test results for each run and for each test including the following information:

1) Date of run.

2) Duration of run.

3) Time-weighted average and highest hourly rolling average CO level for each run and for the test.

4) Highest hourly rolling average HC level, if HC monitoring is required for each run and for the test.

5) If dioxin and furan testing is required under s. NR 666.104(5), time-weighted average emissions for each run and for the test of chlorinated dioxin and furan emissions, and the predicted maximum annual average ground level concentration of the toxicity equivalency factor.

6) Time-weighted average particulate matter emissions for each run and for the test.

7) Time-weighted average HCl and Cl 2 emissions for each run and for the test.

8) Time-weighted average emissions for the metals subject to regulation under s. NR 666.106 for each run and for the test.

9) QA/QC results.

3. Comparison of the actual emissions during each test with the emissions limits prescribed by ss. NR 666.104(2), (3) and (5), 666.105, 666.106 and 666.107 and established for the facility in the certification of precompliance under sub. (2).

4. Determination of operating limits based on all valid runs of the compliance test for each applicable parameter listed in par. (a) using either of the following procedures:

a. A parameter may be measured and recorded on an instantaneous basis (i.e., the value that occurs at any time) and the operating limit specified as the time-weighted average during all runs of the compliance test.

1) The limit for a parameter may be established and continuously monitored on an hourly rolling average basis defined as follows:

a) A continuous monitor is one which continuously samples the regulated parameter without interruption, and evaluates the detector response at least once each 15 seconds, and computes and records the average value at least every 60 seconds.

b) An hourly rolling average is the arithmetic mean of the 60 most recent 1-minute average values recorded by the continuous monitoring system.

2) The operating limit for the parameter shall be established based on compliance test data as the average over all test runs of the highest hourly rolling average value for each run.

c. Feed rate limits for the carcinogenic metals (i.e., arsenic, beryllium, cadmium and chromium) and lead may be established either on an hourly rolling average basis as prescribed by subd. 4. b. or on (up to) a 24 hour rolling average basis. If the owner or operator elects to use an averaging period from 2 to 24 hours:

1) The feed rate of each metal shall be limited at any time to 10 times the feed rate that would be allowed on a hourly rolling average basis.

2) The continuous monitor shall meet the following specifications:

b) The rolling average for the selected averaging period is defined as arithmetic mean of one hour block averages for the averaging period. A one hour block average is the arithmetic mean of the one minute averages recorded during the 60-minute period beginning at one minute after the beginning of preceding clock hour.

3) The operating limit for the feed rate of each metal shall be established based on compliance test data as the average over all test runs of the highest hourly rolling average feed rate for each run.

d. Feed rate limits for metals, total chlorine and chloride, and ash are established and monitored by knowing the concentration of the substance (i.e., metals, chloride and chlorine, and ash) in each feedstream and the flow rate of the feedstream. To monitor the feed rate of these substances, the flow rate of each feedstream shall be monitored under the continuous monitoring requirements of subd. 4. a. to c.

5. The following statement shall accompany the certification of compliance:

"I certify under penalty of law that this information was prepared under my direction or supervision in accordance with a system designed to ensure that qualified personnel properly gathered and evaluated the information and supporting documentation. Copies of all emissions tests, dispersion modeling results and other information used to determine conformance with s. NR 666.103(3) are available at the facility and can be obtained from the facility contact person listed above. Based on my inquiry of the person or persons who manages the facility, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

I also acknowledge that the operating conditions established in this certification pursuant to s. NR 666.103(3) (d) 4. are enforceable limits at which the facility can legally operate during an interim license until a revised certification of compliance is submitted."

(e) Special requirements for HC monitoring systems. When an owner or operator is required to comply with the hydrocarbon (HC) controls provided by s. NR 666.104(3) or sub. (1) (e) 1. d., a conditioned gas monitoring system may be used in conformance with specifications provided in ch. NR 666 Appendix IX if the owner or operator submits a certification of compliance without using extensions of time provided by par. (g).

(f) Special operating requirements for industrial furnaces that recycle collected PM. Owners and operators of industrial furnaces that recycle back into the furnace particulate matter (PM) from the air pollution control system shall do all of the following:

1. When complying with par. (c) 2. a., comply with the operating requirements prescribed in "Alternative Method to Implement the Metals Controls" in ch. NR 666 Appendix IX.

2. When complying with par. (c) 2. b., comply with the operating requirements prescribed by that subdivision paragraph.

(g) Extensions of time.

1. If the owner or operator does not submit a complete certification of compliance for all of the applicable emissions standards of ss. NR 666.104, 666.105, 666.106 and 666.107 by August 21, 1992, the owner or operator shall do one of the following:

a. Stop burning hazardous waste and begin closure activities under sub. (12) for the hazardous waste portion of the facility.

b. Limit hazardous waste burning only for purposes of compliance testing (and pretesting to prepare for compliance testing) a total period of 720 hours for the period of time beginning August 21, 1992, submit a notification to the department by August 21, 1992 stating that the facility is operating under restricted interim license and intends to resume burning hazardous waste, and submit a complete certification of compliance by August 23, 1993.

c. Obtain a case-by-case extension of time under subd. 2.

2. The owner or operator may request a case-by-case extension of time to extend any time limit provided by this paragraph if compliance with the time limit is not practicable for reasons beyond the control of the owner or operator.

a. In granting an extension, the department may apply conditions as the facts warrant to ensure timely compliance with this section and that the facility operates in a manner that does not pose a hazard to human health and the environment.

b. When an owner or operator requests an extension of time to enable the facility to comply with the alternative hydrocarbon provisions of s. NR 666.104(6) and obtain a hazardous waste license because the facility cannot meet the HC limit of s. NR 666.104(3):

1) The department shall, in considering whether to grant the extension, do all of the following:

a) Determine whether the owner and operator have submitted in a timely manner a complete feasibility and plan of operation report that includes information required under s. NR 670.022(2).

b) Consider whether the owner and operator have made a good faith effort to certify compliance with all other emission controls, including the controls on dioxins and furans of s. NR 666.104(5) and the controls on PM, metals, HCl and Cl 2.

2) If an extension is granted, the department shall, as a condition of the extension, require the facility to operate under flue gas concentration limits on CO and HC that, based on available information, including information in the feasibility and plan of operation report, are baseline CO and HC levels as defined by s. NR 666.104(6) (a).

(h) Revised certification of compliance. The owner or operator may submit at any time a revised certification of compliance (recertification of compliance) under the following procedures:

1. Prior to submittal of a revised certification of compliance, hazardous waste may not be burned for more than a total of 720 hours under operating conditions that exceed those established under a current certification of compliance, and such burning may be conducted only for purposes of determining whether the facility can operate under revised conditions and continue to meet the applicable emissions standards of ss. NR 666.104, 666.105, 666.106 and 666.107.

2. At least 30 days prior to first burning hazardous waste under operating conditions that exceed those established under a current certification of compliance, the owner or operator shall notify the department and submit the following information:

a. EPA facility ID number, and facility name, contact person, telephone number and address.

b. Operating conditions that the owner or operator is seeking to revise and description of the changes in facility design or operation that prompted the need to seek to revise the operating conditions.

c. A determination that when operating under the revised operating conditions, the applicable emissions standards of ss. NR 666.104, 666.105, 666.106 and 666.107 are not likely to be exceeded. To document this determination, the owner or operator shall submit the applicable information required under sub. (2) (b).

d. Complete emissions testing protocol for any pretesting and for a new compliance test to determine compliance with the applicable emissions standards of ss. NR 666.104, 666.105, 666.106 and 666.107 when operating under revised operating conditions. The protocol shall include a schedule of pre-testing and compliance testing. If the owner or operator revises the scheduled date for the compliance test, the owner or operator shall notify the department in writing at least 30 days prior to the revised date of the compliance test.

3. Conduct a compliance test under the revised operating conditions and the protocol submitted to the department to determine compliance with the applicable emissions standards of ss. NR 666.104, 666.105, 666.106 and 666.107.

4. Submit a revised certification of compliance under par. (d).

(4) PERIODIC RECERTIFICATIONS . The owner or operator shall conduct compliance testing and submit to the department a recertification of compliance under provisions of sub. (3) within 5 years from submitting the previous certification or recertification. If the owner or operator seeks to recertify compliance under new operating conditions, the owner or operator shall comply with sub. (3) (h).

(5) NONCOMPLIANCE WITH CERTIFICATION SCHEDULE . If the owner or operator does not comply with the interim license compliance schedule provided by subs. (2), (3) and (4), hazardous waste burning shall terminate on the date that the deadline is missed, closure activities shall begin under sub. (12), and hazardous waste burning may not resume except under an operating license issued under s. NR 670.066. For purposes of compliance with the closure provisions of sub. (12) and ss. NR 665.0112(4) (b) and 665.0113 the boiler or industrial furnace has received "the known final volume of hazardous waste" on the date that the deadline is missed.

(6) STARTUP AND SHUTDOWN . Hazardous waste (except waste fed solely as an ingredient under the Tier I (or adjusted Tier I) feed rate screening limits for metals and chloride and chlorine) may not be fed into the device during startup and shutdown of the boiler or industrial furnace, unless the device is operating within the conditions of operation specified in the certification of compliance.

(7) AUTOMATIC WASTE FEED CUTOFF . During the compliance test required by sub. (3) (c), and upon certification of compliance under sub. (3), a boiler or industrial furnace shall be operated with a functioning system that automatically cuts off the hazardous waste feed when the applicable operating conditions specified in sub. (3) (a) 1. and 5. to 13. deviate from those established in the certification of compliance. In addition:

(a) To minimize emissions of organic compounds, the minimum combustion chamber temperature (or the indicator of combustion chamber temperature) that occurred during the compliance test shall be maintained while hazardous waste or hazardous waste residues remain in the combustion chamber, with the minimum temperature during the compliance test defined as either of the following:

1. If compliance with the combustion chamber temperature limit is based on a hourly rolling average, the minimum temperature during the compliance test is considered to be the average over all runs of the lowest hourly rolling average for each run.

2. If compliance with the combustion chamber temperature limit is based on an instantaneous temperature measurement, the minimum temperature during the compliance test is considered to be the time-weighted average temperature during all runs of the test.

(b) Operating parameters limited by the certification of compliance shall continue to be monitored during the cutoff, and the hazardous waste feed may not be restarted until the levels of those parameters comply with the limits established in the certification of compliance.

(8) FUGITIVE EMISSIONS . Fugitive emissions shall be controlled by one of the following:

(a) Keeping the combustion zone totally sealed against fugitive emissions.

(b) Maintaining the combustion zone pressure lower than atmospheric pressure.

(c) An alternate means of control that the owner or operator can demonstrate provide fugitive emissions control equivalent to maintenance of combustion zone pressure lower than atmospheric pressure. Support for such demonstration shall be included in the operating record.

(9) CHANGES . A boiler or industrial furnace shall cease burning hazardous waste when changes in combustion properties, or feed rates of the hazardous waste, other fuels, or industrial furnace feedstocks, or changes in the boiler or industrial furnace design or operating conditions deviate from the limits specified in the certification of compliance.

(10) MONITORING AND INSPECTIONS .

(a) The owner or operator shall monitor and record all of the following, at a minimum, while burning hazardous waste:

1. Feed rates and composition of hazardous waste, other fuels, and industrial furnace feed stocks, and feed rates of ash, metals, and total chloride and chlorine as necessary to ensure conformance with the certification of precompliance or certification of compliance.

2. Carbon monoxide (CO), oxygen, and if applicable, hydrocarbons (HC), on a continuous basis at a common point in the boiler or industrial furnace downstream of the combustion zone and prior to release of stack gases to the atmosphere in accordance with the operating limits specified in the certification of compliance. CO, HC and oxygen monitors shall be installed, operated and maintained in accordance with methods specified in ch. NR 666 Appendix IX.

3. Upon the request of the department, sampling and analysis of the hazardous waste (and other fuels and industrial furnace feed stocks as appropriate) and the stack gas emissions shall be conducted to verify that the operating conditions established in the certification of precompliance or certification of compliance achieve the applicable standards of ss. NR 666.104, 666.105, 666.106 and 666.107.

(b) The boiler or industrial furnace and associated equipment (pumps, valves, pipes, fuel storage tanks, etc.) shall be subjected to thorough visual inspection when they contain hazardous waste, at least daily for leaks, spills, fugitive emissions and signs of tampering.

(c) The automatic hazardous waste feed cutoff system and associated alarms shall be tested at least once every 7 days when hazardous waste is burned to verify operability, unless the owner or operator can demonstrate that weekly inspections will unduly restrict or upset operations and that less frequent inspections will be adequate. Support for such demonstration shall be included in the operating record. At a minimum, operational testing shall be conducted at least once every 30 days.

(d) These monitoring and inspection data shall be recorded and the records shall be placed in the operating log.

(11) RECORDKEEPING . The owner or operator shall keep in the operating record of the facility all information and data required by this section for a minimum of 5 years.

(12) CLOSURE . At closure, the owner or operator shall remove all hazardous waste and hazardous waste residues (including, but not limited to, ash, scrubber waters and scrubber sludges) from the boiler or industrial furnace and shall comply with ss. NR 665.0111 to 665.0115.

Disclaimer: These regulations may not be the most recent version. Wisconsin may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.

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