Table A.9 Fabric Filters

A.9 Fabric Filters

A.9.1 Fabric Filter subject to 40 CFR pt. 64 (CAM)

Fabric Filters – subject to 40 CFR pt. 64 Compliance Assurance Monitoring (CAM) – controlling Other (not Large) PSEUs

This carat (>) means to input a numerical number according to the design of the fabric filter. The Permittee shall record this data in the Operation and Maintenance (O & M) plan within 30 days after permit issuance or 30 days after installation of any new control equipment for which there are such operating parameter requirements.

What to do / Why to do it
Operation and Maintenance of Fabric Filter: The Permittee shall operate and maintain the fabric filter according to the control equipment manufacturer’s specifications, shall conduct inspections, and maintain documentation of those actions as required by Minn. R. 7011.0075, subp. 2(A) to 2(I). The Permittee shall keep copies of the O & M Plan available onsite for use by staff and MPCA staff. / 40 CFR Section 64.8; Minn. R. 7017.0200;
Minn. R. 7011.0080; Minn. R. 7007.0800, subp. 14
PM control efficiency: The Permittee shall operate and maintain the control equipment such that it achieves an overall control efficiency of particulate matter: greater than or equal to <99/79> percent efficiency. / Minn. R. 7011.0080; Minn. R. 7007.0800, subp. 4
PM10 control efficiency: The Permittee shall operate and maintain the control equipment such that it achieves an overall control efficiency of particulate matter with an aerodynamic diameter less than or equal to 10 microns: greater than or equal to <93/74> percent efficiency. / Minn. R. 7011.0080; Minn. R. 7007.0800, subp. 4
PM2.5 control efficiency: The Permittee shall operate and maintain the control equipment such that it achieves an overall control efficiency of particulate matter with an aerodynamic diameter less than or equal to 2.5 microns: greater than or equal to <93/74> percent efficiency. / Minn. R. 7007.0800, subp. 4
Pressure Drop: Maintain greater than or equal to > inches of water column and less than or equal to > inches of water column. / Minn. R. 7011.0080; Minn. R. 7007.0800, subp. 4
Recordkeeping of Pressure Drop. If the spray booth is in operation, then the Permittee shall record:
1) the pressure drop once every 24 hours,
2) whether or not the recorded pressure drop was within the range specified in the compliance management plan, and
3) the time and date of the pressure drop reading.
If the pressure drop is not within the range specified in the compliance management plan, then it will be considered a deviation. / 40 CFR Section 64.9; Minn. R. 7017.0200; Minn. R. 7011.0080; Minn. R. 7007.0800, subp. 4
Visible Emissions: The Permittee shall check the fabric filter stack for any visible emissions once each day of operation during daylight hours. During inclement weather, the Permittee shall read and record the pressure drop across the fabric filter, once each day of operation. / Minn. R. 7011.0080; Minn. R. 7007.0800, subp. 5
Recordkeeping of Visible Emissions (VE): The Permittee shall keep records on the time and date of VE inspections, and whether or not any VEs were observed. / 40 CFR Section 64.9; Minn. R. 7017.0200; Minn. R. 7007.0800, subp. 5
Corrective Actions: The Permittee shall take corrective action as soon as possible if any of the following occur::
-if visible emissions are observed;
-if the recorded pressure drop is outside the required operating range; or
-if the fabric filter or any of its components are found during the inspections to need repair.
Corrective actions shall return the pressure drop to within the permitted range, eliminate visible emissions, and/or include completion of necessary repairs identified during the inspection, as applicable. Corrective actions include, but are not limited to, those outlined in the O & M Plan for the fabric filter. The Permittee shall keep a record of the type and date of any corrective action taken for each filter. / 40 CFR Section 64.7(d); Minn. R. 7017.0200; Minn. R. 7007.0800, subp. 5
Reporting of Corrective Actions: All situations warranting corrective actions are deviations, the Permittee shall report the deviations in the semiannual deviations report as required in the total facility section of this general permit. / 40 CFR Section 64.9(c); Minn. R. 7017.0200; Minn. R. 7007.0800, subp. 6
Monitoring Equipment: The Permittee shall install and maintain the necessary monitoring equipment for measuring and recording pressure drop as required by this permit. The monitoring equipment must be installed, in use, and properly maintained when the monitored fabric filter is in operation. / 40 CFR Section 64.7(b); Minn. R. 7017.0200; Minn. R. 7007.0800, subp. 4
Periodic Inspections: At least one per calendar quarter or more frequently as required by the manufacturing specifications, the Permittee shall inspect the control equipment components. The Permittee shall maintain a written record of these inspections. / 40 CFR Section 64.3; Minn. R. 7017.0200; Minn. R. 7007.0800, subps. 4, 5, and 14
The Permittee shall calibrate or replace the pressure gauge at least once every 12 months and shall maintain a written record of any action resulting from the calibration. / 40 CFR Section 64.3; Minn. R. 7017.0200
Documentation of Need for Improved Monitoring: If the Permittee fails to achieve compliance with an emission limitation or standard for which the monitoring did not provide an indication of an excursion or exceedance while providing valid data, or the results of compliance or performance testing document a need to modify the existing pressure drop range, the Permittee shall promptly notify the MPCA and update the Permittee’s records to address the necessary monitoring change. / 40 CFR Section 64.7(e); Minn. R. 7017.0200
As required by 40 CFR Section 64.9(a)(2), for the Semi-Annual Deviations Report listed in Table B of this permit and/or the Notification of Deviations Endangering Human Health and the Environment listed earlier in Table A of this permit, as applicable, the Permittee shall include the following related to the monitoring identified as required by 40 CFR pt. 64: 1) Summary information on the number, duration, and cause of excursions or exceedances, as applicable, and the corrective action taken; and 2) Summary information on the number, duration, and cause for monitor downtime incidents. / 40 CFR Section 64.9(a)(2); Minn. R. 7017.0200
The Permittee shall maintain records of monitoring data, monitor performance data, corrective actions taken, and other supporting information required to be maintained. The Permittee may maintain records on alternative media, such as microfilm, computer files, magnetic tape disks, or microfiche, provided that the use of such alternative media allows for expeditious inspection and review, and does not conflict with other applicable recordkeeping requirements. / 40 CFR Section 64.9(b); Minn. R. 7017.0200

A.9.2 Fabric Filters not subject to 40 CFR pt. 64 (CAM)

Fabric Filters – NOT subject to 40 CFR pt. 64 Compliance Assurance Monitoring (CAM)

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