ASWAN Villages, Bank of America – Dade County, Florida
BFA was retained by the Bank of America to conduct Phase I and II Assessments activities at the Aswan Village Apartment Complex located in Opa Locka, Florida. The apartment complex was constructed over portions of a former dump site. BFA completed the following assessment and remedial activities at the site:
- Performed Phase I in accordance with the current ASTM E1527 standards. Performed Phase II ESA activities in accordance with appropriate standards including 62-770 to investigate the occurrence of PAHs, 601/602 parameters, 8 RCRA metals and methane gas at the site.
- Installed eight groundwater monitoring wells. Groundwater monitoring was conducted on a quarterly basis in accordance with DEP-SOP-001/01-FS2200 Groundwater Sampling• Installed twenty-one (21) Methane Gas Monitoring Wells (MGMWs) along the perimeter of the property to assess and help delineate methane gas concentration at the property boundary. Combustible gas sampling was conducted with a Q-RAE PLUS Multi-Gas Monitor PGM–2000.
- Designed and installed an active methane gas extraction system. This included the installation of 14 active collection wells with vacuum blowers and air emission stacks. The active systems were installed under the footprint of each the 13 apartment buildings and clubhouse.
- Conducted routine weekly monitoring of the active methane gas extraction system. This included monitoring the MGRS via the HEW sample port and blower discharge sample port at each building. Applied pressure, temperature, methane and oxygen concentrations were monitored at each building.
- Provided construction oversight and inspection services during the installation of the active methane remediation system. Ensured systems were installed in accordance with DERM-approved specifications.
- Conducted routine weekly ambient air quality monitoring of potential methane gas migration pathways within the occupied structures (e.g., apartments, equipment rooms, clubhouse, etc.)
- Performed routine O&M activities on the system including calibration of pressure gauges and other quality control checks.
- Prepared monthly monitoring reports for the client for submission to DERM.
- Assisted client with the preparation of institutional site controls as required by DERM. This included, notification to tenants, lease agreements and other restrictions as recommended by the Engineer of Record.