Originally opened as a grammar school in 1923, the Historic Bullion Plaza Cultural Center and Museum (BPCCM) stands as a landmark of cultural and historical significance in the Town of Miami, Arizona.

To support the site’s preservation and revitalization, Â鶹TVÍøÕ¾ conducted comprehensive surveys including lead-based paint (LBP) and asbestos-containing material (ACM) as part of an Environmental Protection Agency (EPA)-funded brownfield assessment. These investigations were performed in full compliance with an USEPA Region IX-approved Sampling and Analyses Plan (SAP), which was also prepared by Â鶹TVÍøÕ¾.

Building on the results, Â鶹TVÍøÕ¾ prepared an Analysis of Brownfield Cleanup Alternatives (ABCA), outlining a preliminary evaluation that provided information on contamination issues and potential remedial alternatives. Through Â鶹TVÍøվ’ guidance,  the grantee was able to apply for additional support through the Arizona Department of Environmental Quality (ADEQ) Brownfield Program — successfully transition from assessment to remediation.

Today, the BPCCM stands as a shining example of Brownfield excellence—where cultural heritage meets environmental responsibility, and community pride is reclaimed for future generations.

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Â鶹TVÍøÕ¾ successfully met deadlines and set budgets for 22 phases of building survey, renovation and abatement oversight activities. Â鶹TVÍøÕ¾ provided an on-site PCM asbestos laboratory for accurate and speedy air monitoring results throughout the entire renovation project. Â鶹TVÍøÕ¾ also assisted the client and related construction trades on site asbestos awareness/O&M Training and OSHA exposure monitoring. Â鶹TVÍøÕ¾ also prepared a final abatement oversight report.

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Â鶹TVÍøÕ¾ understood that a worker was repairing equipment using internal combustion engine powered equipment. The weather was apparently very windy and the workers moved several pieces of equipment into a building to avoid the wind.

Â鶹TVÍøÕ¾ performed an investigation of the exposure incident to better understand the event and assist in the determination of potential root causes. Â鶹TVÍøÕ¾ also re-created the exposure event using the same equipment present during the real event. During the exposure re-creation, Â鶹TVÍøÕ¾ collected real-time data to determine the emissions from all equipment involved and in areas of the building to understand the employee’s potential carbon monoxide and exhaust gases exposure.

Â鶹TVÍøÕ¾ then used the data gathered during the investigation and air sampling to construct an exposure model to estimate the carbon monoxide exposure of workers over the course of the work shift. The data from the model and exposure investigation was compiled into a written report that outlined the results of the assessment along with various potential exposure scenarios. The client used the information to understand the event and institute measures to prevent similar events in the future.

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Â鶹TVÍøÕ¾ collected personal breathing zone samples for total hydrocarbons and volatile organic chemicals. The employee work tasks during the monitoring period were observed and documented. The samples were collected over a full eight-hour work shift.

All measured airborne chemical levels were below the applicable occupational exposure limits indicating a low potential for employee exposures.  Â鶹TVÍøÕ¾ also recommended that an established lunch area, away from the household hazardous waste collection area, be established.

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