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Ambient Lead Monitoring Data

The Lead concentration data for the monitoring sites near the facility will be posted here after the sampling and monitoring data is checked to assure all of the method requirements are met. It is expected that data will be provided within two weeks of the calculation and initial verification of the data. All data will be stored in and available from the EPA national Air Quality database.

DHEC will operate samplers at several locations around the Johnson Controls facility to regularly collect particulate samples. The concentrations of Lead in the ambient air will be determined by using the Federal Reference Method for collection and analysis of the air samples. The samples will be analyzed at the DHEC laboratory in Columbia. All sampling and analysis will be done by DHEC personnel.

Lead Monitoring Synopsis for Johnson Controls

Lead sampling around the JCI facility will begin no later than the start-up of facility operations. The samples will be collected more frequently during startup to provide a more detailed indication of any impacts to ambient concentrations. If concentrations at any of the monitoring locations approach the level of the National Ambient Air Quality Standard, sampling will remain at the higher frequency until the problem is identified and addressed and the improvement is documented in the monitoring data. The monitors will be operated as part of the statewide ambient monitoring network.

Sampling will be conducted at three fixed sites. The locations of the sampling sites were determined by using emissions modeling to identify the areas with the expected highest lead concentrations resulting from facility operations. The monitoring sites include the area with the maximum predicted concentration downwind of the facility, an area with the highest concentration of facility-related traffic, and an area that can indicate potential impacts near the Pee Dee River.

The 24-hour concentrations measured at each sampling site will be averaged over three months and compared to the National Ambient Air Quality Standard. The standard is met if the highest 3-month average in any 3-year period is no more than 0.15 micrograms per cubic meter.

Lead Monitoring Data - 3 month rolling averages

U.S. Environmental Protection Agency Lead Information

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