Ariz. Admin. Code § 18-2-B1301.01

Current through Register Vol. 30, No. 50, December 13, 2024

Section R18-2-B1301.01 - Limits on Lead-Bearing Fugitive Dust from the Hayden Smelter

A. Applicability.

1. This Section applies to the owner or operator of the Hayden Smelter.

2. Effective Date. Except as otherwise provided, the requirements of this Section shall become applicable on December 1, 2018.

B. Definitions. In addition to definitions contained in R18-2-101 and R18-2-B1301, the following definitions apply to this Section:

1. "Acid plant scrubber blowdown drying system" means the process in which Venturi scrubber blowdown solids are dried and packaged via a thickener, filter press, electric dryer, and supersack filling stations.

2. "Control measure" means a piece of equipment used, or actions taken, to minimize lead-bearing fugitive dust emissions that would otherwise be released to the atmosphere. Control equipment may include, but are not limited to, wind fences, chemical dust suppressants, and water sprayers. Actions may include, but are not limited to, relocating sources, curtailing operations, or ceasing operations.

3. "Hayden Lead Nonattainment Area" means the townships in Gila and Pinal Counties, as identified and codified in 40 CFR § 81.303, that are designated nonattainment for the 2008 Lead National Ambient Air Quality Standards.

4. "High wind event" means any period of time beginning when the average wind speed, as measured at a meteorological station maintained by the owner or operator that is approved by the Department, is greater than or equal to 15 miles per hour over a 15 minute period, and ending when the average wind speed, as measured at the approved meteorological station maintained by the owner or operator, falls below 15 miles per hour over a 15 minute period.

5. "Lead-bearing fugitive dust" means uncaptured and/or uncontrolled particulate matter containing lead that is entrained in the ambient air and is caused by activities, including, but not limited to, the movement of soil, vehicles, equipment, and wind.

6. "Material pile" means material, including concentrate, uncrushed reverts, crushed reverts, and bedding material, that is stored in a pile outside a building or warehouse and is capable of producing lead-bearing fugitive dust.

7. "Non-smelting process sources" means sources of lead-bearing fugitive dust that are not part of the hot metal process, which includes smelting in the INCO flash furnace, converting, and anode refining and casting. Non-smelting process sources include storage, handling, and unloading of concentrate, uncrushed reverts, crushed reverts, and bedding material; acid plant scrubber blowdown solids; and paved and unpaved roads.

8. "Ongoing visible emissions" means observed emissions to the outside air that are not brief in duration.

9. "Road" means any surface on which vehicles pass for the purpose of carrying people or materials from one place to another in the normal course of business at the Hayden Smelter.

10. "Slag" means the inorganic molten material that is formed during the smelting process and has a lower specific gravity than copper-bearing matte.

11. "Slag hauler" means any vehicle used to transport molten slag.

12. "Storage and handling" means all activities associated with the handling and storage of materials that take place at the Hayden Smelter, including, but not limited to, stockpiling, transport on conveyor belts, transport or storage in rail cars, crushing and milling, arrival and handling of offsite concentrate, bedding, and handling of reverts.

13. "Trackout/carry-out" means any materials that adhere to and agglomerate on the surfaces of motor vehicles, haul trucks, and/or equipment (including tires) and that may then fall onto the road.

C. Operational Standards.

1. Equipment operations. At all times, the owner or operator shall operate and maintain all non-smelting process sources, including all associated air pollution control equipment, control measures, and monitoring equipment, in a manner consistent with good air pollution control practices for minimizing lead-bearing fugitive dust, and in accordance with the fugitive dust plan required by subsection (C)(2) and performance and housekeeping requirements in subsection (D). A determination of whether acceptable operating and maintenance procedures are being used shall be based on all available information to the Department and EPA Region IX, which may include, but is not limited to, monitoring results, review of operating and maintenance procedures and records, review of fugitive dust plans, and inspection of the relevant equipment.

2. Fugitive dust plan. The owner or operator shall develop, implement, and follow a fugitive dust plan that is designed to minimize lead-bearing fugitive dust from non-smelting process sources. At minimum, the fugitive dust plan shall contain the following:

a. Performance and housekeeping requirements in subsection (D).

b. Design plans and specifications for each wind fence to be installed to control lead-bearing fugitive dust from non-smelting process sources identified in subsections (D)(11) through (D)(14). The dust plan shall contain height limits for the materials being stored in each wind fence, consistent with the design plans and specifications for that particular wind fence. Wind fence design and specifications shall:

i. Require full encircling of the source to be controlled, with reasonable and sufficient openings for ingress and egress;

ii. Consider the orientation of the wind fence to the prevailing winds;

iii. Consider the strength of the winds in the area where the fence will be located;

iv. Consider the porosity of the material to be used, which shall not exceed 50 percent; and

v. Consider the height of the fence relative to the height of the material being stored. At minimum, wind fence height shall be greater than or equal to the material pile height.

c. Design plans and specifications for each new or modified water sprayer system used to control lead-bearing fugitive dust from non-smelting process sources specified in subsections (D)(11) through (D)(14). The number, type, location, watering intensity, flow rates, and other operational parameters of the water sprayers must meet moisture content objectives for sources specified in subsections (D)(11) through (D)(14). The owner or operator may include in the dust plan an exemption to the water requirements at times when the materials are sufficiently moist or it is raining and thus there is no need for additional wetting until the next scheduled watering to meet moisture content objectives. The dust plan shall include the following for each water sprayer:

i. watering schedule;

ii. watering intensity;

iii. minimum flow rate or pressure drop;

iv. appropriate and/or continuous monitoring;

v. schedule for calibration based on the manufacturer's recommended calibration schedule;

vi. preventative maintenance schedule; and

vii. other applicable operational parameters.

d. Necessary improvements and/or modifications to material conveyor systems, along with a schedule for implementing improvements or modifications, targeted to minimize lead-bearing fugitive dust from non-smelting process sources specified in subsections (D)(11) through (D)(14), as applicable, to the greatest extent practicable. The improvements or modifications may include, but is not limited to, hooding of transfer points, utilizing water sprayers, and employing scrapers, brushes, or cleaning systems at all points where belts loop around themselves to catch and contain material before it falls to the ground.

e. Design plans for the concrete pads for the non-smelting process sources specified in subsections (D)(11) and (D)(13). The concrete pads shall be designed to capture, store, and control stormwater or sprayed water to minimize emissions to the greatest extent practicable, including curbing around the outer edges of the concrete pad where feasible.

f. Additional controls and measures for sources specified in subsections (D)(11) through (D)(14) to be implemented during high wind events. These additional controls or measures, which must include curtailment or other alteration of activity when appropriate, must be implemented at these sources during all periods of high wind.

g. Sample inspection sheets, checklists, or logsheets for each of the inspections identified in subsection (D)(6), and in accordance with the following:

i. The inspection sheets or checklists shall include:

(1) Specific descriptions of the equipment being inspected and the specific functions being evaluated;

(2) The findings of the inspection;

(3) The date, time, and location of inspections; and

(4) An identification of who performed the inspection or logged the results.

ii. The logsheets for high wind events shall include:

(1) High wind event start time;

(2) High wind event end time;

(3) Description of area or activity inspected; and

(4) Description of corrective action taken if necessary.

h. Design plans of the new acid plant scrubber blowdown drying system specified in subsection (D)(15).

i. The name and location of the meteorological station, which must be approved by the Department, that is to be used by the owner or operator for determining high wind events pursuant to subsection (B)(4) and for implementing control requirements pursuant to subsection (D)(5).

3. Plan development and revisions. The owner or operator shall develop and keep current the fugitive dust plan required by subsection (C)(2). Any plan or plan revision shall be consistent with this Section and shall be submitted to the Department for review. The initial plan shall be submitted to the Department for review no later than May 1, 2017. Plans and plan revisions shall be consistent with good air pollution control practice for fugitive dust. Except for the meteorological station to be used for high wind events pursuant to subsection (D)(5), which shall require prior approval, plans and plan revisions may be implemented upon submittal and shall remain in effect until superseded or until disapproved by the Department. Disapprovals are appealable Department actions.

D. Performance and Housekeeping Requirements. The owner or operator shall comply with these requirements at all times regardless of a fugitive dust plan.

1. Water sprayers. The owner or operator shall implement a recordkeeping system to capture sprayer operations, including identification of the particular operation, lead-bearing fugitive dust source, timing and intensity of watering, and data regarding the quantity of water used at each water sprayer.

2. Wind fences. The owner or operator shall ensure that wind fences used to control lead-bearing fugitive dust from the non-smelting process sources specified in subsections (D)(11) through (D)(14) meet the following requirements:

a. Wind fence height shall be greater than or equal to the material pile height. The allowed material pile height shall be posted in a readily visible location at each wind fence.

b. Wind fence porosity shall not exceed 50 percent.

3. Material conveyor systems. For sources specified in subsections (D)(11) through (D)(14), as applicable, the owner or operator shall:

a. Minimize conveyor drop heights to the greatest extent practicable.

b. Clean any spills from conveyors within 30 minutes of discovery. The material collected must be handled in such a way so as to minimize lead-bearing fugitive dust to the maximum extent practicable.

4. Vehicle transport of materials. The owner or operator shall maintain vehicle cargo compartments used to transport materials capable of producing lead-bearing fugitive dust so that the cargo compartment is free of holes or other openings and is covered by a tarp.

5. High wind event requirements.

a. During high wind events, the owner or operator shall evaluate the non-smelting process sources specified in subsections (D)(11) through (D)(14) for ongoing visible emissions using the appropriate logsheet for each source.

b. If ongoing visible emissions are observed, the owner or operator shall promptly wet the source of emissions with the objective of mitigating further emissions.

c. If wetting does not appear to mitigate the ongoing visible emissions to 20 percent opacity or less, the owner or operator shall postpone associated handling of the source until the high wind event has ceased.

6. Physical inspections. The owner or operator shall conduct physical inspections as follows:

a. Daily inspections of all water sprayers to make sure they are functioning and are in accordance with the dust plan;

b. Daily visual inspections of all material piles to make sure they are maintained within areas protected by a wind fence, that they are not higher than allowed for the wind fence, and to verify that moisture content requirements are met;

c. Daily inspections of all material handling areas to identify and clean up track out or spills of materials;

d. Daily inspections of conveyor systems to identify and clean up material spills;

e. Daily inspections of rumble grates sump levels;

f. Daily spot inspections of vehicles carrying lead-bearing fugitive dust-producing materials when vehicles are in use to ensure that material is not overloaded, is properly covered, and cargo compartments are intact;

g. Weekly inspections of wind fences for material integrity and structural stability;

h. Daily inspections of all paved roads to identify and clean up track out or spills of materials;

i. Daily inspections of unpaved roads in subsection (D)(10)(a) to identify areas where chemical dust suppressant coverage has broken down; and

j. Bi-weekly inspections of the acid plant scrubber blowdown drying system enclosure.

7. Opacity limit and Method 9 readings.

a. Opacity from lead-bearing fugitive dust emissions shall not exceed 20 percent from any part of the facility at any time. Opacity shall be determined by using 40 CFR 60, Appendix A, Reference Method 9, except for unpaved roads, in which opacity shall be determined pursuant to subsection (D)(10)(c).

b. In the event that an employee observes ongoing visible emissions at a non-smelting process source covered by this Section, that employee shall promptly contact a Reference Method 9-certified observer, who shall promptly evaluate the emissions and conduct a Reference Method 9 reading, if possible.

c. A Reference Method 9-certified observer shall conduct a weekly visible emissions survey of all non-smelting process sources covered by this Section and perform a Reference Method 9 reading for any plumes that on an instantaneous basis appear to exceed 15 percent opacity.

8. Corrective actions.

a. At any time that visible emissions from the non-smelting process sources covered by this Section appear to exceed 15 percent opacity, the owner or operator shall take prompt corrective action to identify the source of the emissions and abate such emissions, with the corrective action starting within 30 minutes after discovery. For any non-smelting process source that produces visible emissions that appear to exceed 15 percent opacity, the owner or operator shall perform an analysis of the root cause, and implement a strategy designed to prevent, to the extent feasible, the ongoing recurrence of the source of visible emissions. Within 14 days of completion of its analysis, if appropriate, the owner or operator shall modify the fugitive dust plan in subsection (C)(2) for any changes identified from the analysis differing from the current provisions of the fugitive dust plan.

b. At any time that the owner or operator becomes aware that provisions of the fugitive dust plan and/or performance and housekeeping provisions required by this Section are not being met, the owner or operator shall take prompt action to return to compliance, which may include modifications to monitoring, recordkeeping, and reporting requirements in the fugitive dust plan. This includes, but is not limited to, the following actions:

i. Return water sprayers to full operational status;

ii. Repair damaged conveyor hoodings or oter enclosures;

iii. Apply additional water to ensure that sources are meeting moisture content requirements;

iv. Clean any trackout or spillage of dust-producing material, including dropoff of dust producing material from conveyors, using a street sweeper, vacuum, or wet broom with sufficient water and at the speed recommended by the manufacturer;

v. Reapplication of chemical dust suppressants in areas where the coating has broken down on unpaved roads; and

vi. Revisions to the fugitive dust plan to undertake improved monitoring, recordkeeping, and reporting requirements necessary to ensure that the controls contained in the fugitive dust plan are being implemented as contemplated by the fugitive dust plan.

9. Paved Roads These requirements apply to all roads at the facility currently paved and roads to be paved in the future. The owner or operator shall:

a. Clean roads at least once daily with a sweeper, vacuum, or wet broom in accordance with applicable manufacturer recommendations.

b. Maintain the integrity of the road surface.

c. Cleanup trackout and carry-out of material on the following schedule:

i. As expeditiously as practicable, when trackout and carry-out extends a cumulative distance of 50 linear feet or more; and

ii. At the end of the workday, for all other trackout and carry-out.

d. Comply with a speed limit not to exceed 15 miles per hour for all vehicular traffic. At minimum, speed limit signs shall be posted at all entrances and truck loading and unloading areas and/or at conspicuous areas along the roadway.

10. Unpaved Roads. These requirements apply to the unpaved roads identified in subsections (D)(10)(a)(i) through (D)(10)(a)(iii) below including any access points where the unpaved roads adjoin paved roads and any areas of vehicular handling of material.The owner or operator shall:

a. Implement a chemical dust suppressant application intensity and schedule, which at minimum shall be:

i. For the slag hauler road and all other unpaved roads used or to be used by the slag hauler, chemical dust suppressant shall be applied at least once per week during the summer, and once per every two weeks during the winter.

ii. For the main road to the secondary crusher, chemical dust suppressant shall be applied at least once every six weeks, year-round.

iii. For unpaved roads near reverts and silica flux crushing operations, chemical dust suppressant shall be applied at least once per two weeks during the summer, and once per month in the winter

b. Increase the frequency of chemical dust suppressant application if necessary to reduce fugitive dust emissions from unpaved roads.

c. Not allow visible emissions to exceed 20 percent opacity and shall not allow silt loading equal to or greater than 0.33 oz/ft2. However, if silt loading is equal to or greater than 0 33 oz/ft2, then the owner or operator shall not allow the average percent silt content to exceed 6 percent. Compliance with these requirements shall be determined by the test methods described in Appendix 15.

d. Maintain sufficient watering trucks and personnel to operate such trucks to be employed as an interim measure whenever visible emissions or a breakdown in dust suppressant covering are observed at any point along the treated unpaved road system.

e. Immediately, but no later than 30 minutes after initial observation of any visible emissions, apply water or chemical dust suppressant to the portion of the unpaved road where the visible emissions were observed.

f Reapply chemical dust suppressant within 24 hours of discovery of any area where the surface chemical dust suppressant coverage has broken down.

g. Collect and prevent from becoming airborne any runoff or material from rinsing or sweeping as soon as practicable.

h.Comply with a speed limit not to exceed 15 miles per hour for all vehicular traffic. At minimum, speed limit signs shall be posted at all entrances and truck loading and unloading areas and/or at conspicuous areas along the roadway.

11. Concentrate Storage, Handling, and Unloading. The owner or operator shall:

a. Consolidate and manage all concentrate storage piles in one or more concrete storage pads.

b. Store concentrate in an area with a wind fence in accordance with requirements set forth in the fugitive dust plan and pursuant to subsection (D)(2).

c. Maintain water sprayer in accordance with requirements set forth in the fugitive dust plan and to ensure the surfaces of concentrate piles are wetted to maintain a nominal 10 percent surface moisture content as determined from representative samples using ASTM Method D2216-10 or other equivalent methods approved by the Department and EPA Region IX.

d. Minimize the footprint of the concentrate storage piles by pushing into the stockpile with a front end loader and sweeping open areas of the pads with a self-powered vacuum sweeper at least daily during use.

12. Uncrushed Reverts Handling and Storage. The owner or operator shall:

a. Manage uncrushed revert material only in areas protected by a wind fence in accordance with requirements set forth in the fugitive dust plan and pursuant to subsection (D)(2).

b. Maintain water sprayers in accordance with requirements set forth in the fugitive dust plan and to ensure the surface of uncrushed revert material is wetted with the objective to minimize lead-bearing fugitive dust emissions to the greatest extent practicable.

13. Reverts Crushing Operations and Crushed Reverts Storage. The owner or operator shall:

a. Crush revert and store crushed revert only on one or more concrete pads.

b. Crush revert and store crushed revert only within an area protected by a wind fence in accordance with requirements set forth in the fugitive dust plan and pursuant to subsection (D)(2).

c. Maintain water sprayers in accordance with requirements set forth in the fugitive dust plan and to ensure the surfaces of all crushed revert material, including revert managed after it is crushed, is wetted to maintain a nominal 10 percent surface moisture content as determined from representative samples using ASTM Method D2216-10 or other equivalent methods approved by the Department and EPA Region IX

d. By October 2017, relocate all revert crushing operations to 33º 00' 25.84" N, 110º 46' 26.55" W and shall crush revert only at this new location.

14. Bedding Operations, Including Handling, Storage, and Unloading. The owner or operator shall:

a. Perfom all bedding activities, including loading and unloading of materials to be blended, only within an area protected by a wind fence in accordance with requirements set forth in the fugitive dust plan and pursuant to subsection (D)(2). These activities include the storage and handling areas for potentially lead-bearing fugitive dust-producing material within the bedding plant area.

b. Maintain water sprayers in accordance with requirements set forth in the fugitive dust plan and to ensure the surfaces of material in the bedding area is wetted to maintain a nominal 10 percent surface moisture content as determined from representative samples using ASTM Method D2216-10 or other equivalent methods approved by the Department and EPA Region IX.

c. Maintain rumble grates at all of the bedding plant's entrances and exits to shake off material on the loader tires as they enter and exit the area. Material that is tracked out of the bedding area must be cleaned up at the end of the workday.

d. Operate its bedding activities in a manner designed to avoid any trackout outside an area protected by a wind fence. Areas of material spillage or trackout, whether inside or outside of an area protected by a wind fence, shall be rinsed or cleaned daily.

15. Acid Plant Scrubber Blowdown Drying System.

a. The owner or operator shall dry acid plant scrubber blowdown solids only in an enclosed system that uses a venturi scrubber, thickener, filter press, and electric dryer that is maintained under negative pressure at all times that materials are being dried.

b. The owner or operator shall maintain the negative pressure of the electric dryer using a 2,500 ACFM dryer ventilation fan that must run at all times the electric dryer is operational. Monitoring of the negative pressure shall be demonstrated through the run and stop states of the ventilation fan and electric dryer

c. The acid plant scrubber blowdown drying system shall include the following elements:

i. Venturi scrubber slurry that reports to a new thickener

ii. Underflow from the thickener that goes to a filter press for further liquid removal, with the resulting filter cake sent to two electric dryers operating in parallel to provide final drying of the dust cake.

iii. Exhaust from the dryers sent to the packed gas cooling tower inlet duct.

iv. Dried cake discharged directly into bags.

d. The owner or operator shall clean all areas previously used for scrubber blowdown drying and no longer use previous areas for scrubber blowdown drying.

E. Contingency Requirements.

1. If the owner or operator does not meet the compliance schedule below in subsection (E)(3), or if the Hayden Lead Nonattainment Area does not attain the 2008 Lead National Ambient Air Quality Standards by the attainment date established in the Act, whichever occurs first, then the owner or operator shall increase the paved road cleaning frequency specified in subsection (D)(9) to twice per day.

2. The owner or operator shall implement the contingency measure in subsection (E)(1) within 60 days of notification by EPA Region IX of either a failure to meet the compliance schedule in subsection (E)(3) or a failure to attain by the attainment date established in the Act, whichever occurs first.

3. The compliance schedule is as follows. The Fugitive Dust Plan referred to in the compliance schedule shall mean the Fugitive Dust Plan submitted to the Administrator by the owner or operator to comply with requirements set forth in Consent Decree No. CV-15-02206-PHX-DLR, which became effective on December 30, 2015 in the United States District Court for the District of Arizona, as that plan may be later revised pursuant to subsection (C)(3):

Control Measure	Date of Implementation
Implementation of chemical dust suppression for unpaved roads.	Within 30 days of Administrator approval of application intensity and schedules in Fugitive Dust Plan.
Implementation of wind fences for materials piles (uncrushed reverts, reverts crushing and crushed reverts, bedding materials, and concentrate).	Within 120 days of Administrator approval of the Fugitive Dust Plan or the date of completion in the approved Fugitive Dust Plan, whichever is later.
Implementation of water sprays for materials piles (uncrushed reverts, reverts crushing and crushed reverts, bedding materials, and concentrate).	Within 120 days of Administrator approval of the Fugitive Dust Plan or the date of completion in the approved Fugitive Dust Plan, whichever is later.
Implementation of new acid plant scrubber blowdown drying system.	November 30, 2016
Implementation of new primary, secondary, and tertiary hooding systems for converter aisle for purposes of complying with requirements in R18-2-B1301.	July 1, 2018
Implementation of new ventilation system for matte tapping and slag skimming for flash furnace for purposes of complying with requirements in R18-2-B1301.	July 1, 2018

F. Ambient Air and Meteorological Monitoring Requirements.

1. The owner or operator shall conduct ambient air monitoring and sampling for lead as follows:

a. At minimum, the owner or operator shall continue to maintain and operate the ambient lead monitors located at ST-14 (the smelter parking lot), ST-23 (Hillcrest area), ST-26 (post office), and ST-18 (next to the concentrate handling area).

b. Samples must be collected continuously at all monitor sites specified in subsection (F)(1)(a). For the purposes of this requirement, "continuously" means that 24-hour filters are placed and collected at minimum, every six calendar days at all sites consistent with 40 CFR § 58.12.

c. The owner or operator shall follow the Hayden Smelter's Quality Assurance Project Plan (QAPP) applicable to these monitors.

d. The monitors must be operated and maintained in accordance with 40 CFR 58, Appendix A.

e. The owner or operator shall submit each filter removed from each monitor to a certified laboratory for analysis no later than 18 calendar days after the filter's removal. The owner or operator shall ensure that the laboratory performs its analysis and submits the results to the owner or operator no later than 21 calendar days from the lab's receipt of the filter.

f. The owner or operator shall calculate, update, and maintain as a record the following data within 14 calendar days of receipt of any results pertaining to the monitor filters received from a certified lab:

i. The total pollutants on the filters collected and analyzed; and

ii. Calculations of 30-day rolling average ambient air levels of lead for the ST-23, ST-26, and ST-18 monitors, and 60-day rolling average ambient air levels of lead for the ST-14 monitor, expressed as µg/m3.

g. The owner or operator shall retain lead samples collected pursuant to this Section for at least three years. The samples shall be stored in individually sealed containers and labeled with the applicable monitor and date. Upon request, the samples shall be provided to the Department within five business days.

2. The owner or operator shall conduct meteorological monitoring as follows:

a. Continuously monitor and record wind speed and direction data using equipment and a meteorological station approved by the Department.

b. The owner or operator shall calculate and record average wind speed in miles per hour over 15 minutes, rolled each minute.

c. Conduct wind speed and direction measurements using methods in accordance with EPA's Quality Assurance Handbook for Air Pollution Measurement Systems, Volume I V, Meteorological Measurements, Version 2.0.

3. The ambient air and meteorological monitoring stations required by this Section may be discontinued at the end of three full calendar years after the Hayden Lead Nonattainment Area is redesignated attainment for the 2008 Lead National Ambient Air Quality Standards.

G. Compliance Demonstration Requirements. The owner or operator shall demonstrate compliance with this Section by complying with all requirements in the fugitive dust plan pursuant to subsection (C)(2) and implementing all housekeeping and performance requirements pursuant to subsection (D).

H. Recordkeeping.

1. The owner or operator shall maintain the following records for at least five years and keep on-site for at least two years:

a. Current and past fugitive dust plans required by subsection (C)(2).

b. Physical inspection sheets, checklists, and logsheets for inspections conducted in accordance with subsection (D)(6).

c. All records of opacity and stabilization tests, if any, conducted in accordance with subsection (D)(10)(c).

d. All records of surface moisture content tests, if any, conducted in accordance with subsection (D)(11), subsection (D)(13), and subsection (D)(14).

e. All records of major maintenance activities and inspections conducted on monitors required by subsection (F).

f. All records of quality assurance and quality control activities for the monitors required by subsection (F).

g. All air quality monitoring samples, rolling averages of ambient lead concentrations and necessary calculations, and data required by subsection (F).

h. All records of wind data from the meteorological station required by subsection (F).

i. All records of any periods during which a monitoring device required by subsection (F) is inoperative or not operating correctly.

j. All records of reports and notifications required by subsection (I).

2. All of the following records maintained for the purposes of the fugitive dust plan required by subsection (C)(2) must be maintained in a recordkeeping log or recordkeeping system. As part of the records, the owner or operator shall include the dates and times for each of the following observations or activities, the name of the employee documenting each activity or observation, and the nature and location of each observation activity:

a. Each instance of observed visible emissions of 15 percent opacity or greater, along with a description of any corrective action undertaken and its success.

b. Water sprayer operations, including timing and intensity of watering to be captured in the water sprayer recordkeeping system.

c. Timing, location, type, and amount of chemical suppressant and water applied to unpaved roads, and a description of the nature and timing of any additional corrective action taken, as necessary, to minimize emissions to the greatest extent practicable.

d. Timing and location of all sweeping and cleaning of trackout or spillage material.

e. Timing and location of all washdown of concrete areas.

f. Timing and location of sump cleanouts.

g. Results of all visible emissions surveys and Reference Method 9 readings.

h. Appropriate records for operating conditions, including electric dryer ventilation fan start and stop times for the newly designed acid plant scrubber blowdown drying system.

i. Calibration records for all measurement devices, including maintenance of manufacturer's manuals or other documentation for suggested calibration schedules and accuracy levels for each measurement device.

j. Dates, times, and descriptions of deviations when the owner or operator's operations was carried out in a manner inconsistent with the fugitive dust plan required by subsection (C)(2).

I. . Reporting Within 30 days after the end of each calendar-year quarter, the owner or operator shall submit a report to the Department covering the prior quarter that includes the following:

1. All instances where observed fugitive emissions coming from sources covered in this Section were 15 percent or greater.

2. The date of all high wind events, with an identification of the location of the reading, wind speed, and duration of the event, and a description of actions taken as a result of the event on a source-by-source basis.

3. All instances where corrective action was required with identification of the emission source involved, what triggered the corrective action, what action the owner or operator undertook to abate or mitigate the problem, and whether the corrective action achieved the intended results.

4. A summary of all times when the electronic recordkeeping system was not recording data, and a summary and indication of the period when recorded data was outside of established operating parameters.

5. A summary of progress of all new construction, installation, upgrades, or modifications to equipment or structures at the facility required by the fugitive dust plan and subsection (D), including dates of commencement and completion of construction, dates of operations of new or modified equipment or structures, and dates old or outdated equipment or structures were permanently retired.

6. Raw monitoring data and calculated ambient lead concentrations from the ambient air monitoring stations required by subsection (F).

Ariz. Admin. Code § R18-2-B1301.01

New Section made by final rulemaking at 23 A.A.R. 767, effective 4/7/2017.