Project Status Update: R90 Tracon, STL ATCT, MCI ATCT, mold and moisture issues

1. Project Status Update: R90 Tracon, STL ATCT, MCI ATCT, mold and moisture issues Presented to : CSA Terminal and Technical Operations Directors Presented by : Michelle Lott, Program Manager for Environment and Safety, CSA Planning and Requirements Group January 25, 2007

2. MCI ATCT, (Kansas City, Missouri) • Background • Tower is Leo Daly, similar to DTW and STL ATCT and currently has approximately 70 employees assigned to the tower • First mold remediation completed December 2004 subsequent to project to seal exterior of ATCT (remediation included 2 rooms of base building) • December 2005/January 2006 – Reports of condensation from facility personnel and blocked drain discovered and corrected on sub-junction level by Ops Engineering Personnel.

3. MCI ATCT Background • January – June 2006, Ops Engineering continued to monitor/evaluate moisture issues at ATCT, • Fire rated access panel installed to allow for inspection and observation of concealed areas on 10th floor. • Initiated cycle of testing surface temperatures, ambient temperatures and humidity levels. • Facility personnel requested to monitor specific areas for evidence of moisture and water intrusion • Mold growth was identified in concealed area on the sub-junction level of the ATCT. • Requirements captured in local requirements system for sub-junction remediation and comprehensive evaluation of ATCT and base building.

4. MCI ATCT, Evaluation • June 2006 – January 2007, Extensive evaluation conducted in ATCT by Kansas City EOSH contract support and Ops Engineering personnel to asses potential mold growth from drain incident and on-going condensation issues and to identify corrective actions for moisture issues. • Areas of mold growth were identified via visual confirmation and sampling of suspect materials/areas that could not be visually confirmed.

5. MCI ATCT Evaluation • Mold was identified in the following levels/areas: • Cab Level (ceiling of cab stairs) (occupied); • Junction Level (above elevator door in corridor )(occupied) • Sub-junction Level (equipment room occupied by Tech Ops personnel) • 2TS5 (NATCA office Room), (occupied) • 11TS5, 11TS6, 11TS1, 10TS1, 10TS4, 10TS5, 8TS1, 8TS6, 4TS3, 3TS3, 3TS5, (unoccupied) • Between 8th and 9th floors in elevator shaft (unoccupied)

6. MCI ATCT, Current Status • Statement of work for remediation of tower shaft is in draft; estimates for remediation and restoration are $120K and include: • Extensive HEPA vacuuming of walls, stair stringers, in the stairwells and elevator lobbies • Removal of impacted gypsum board on multiple layers of the tower • Installation of additional access doors to allow for visual inspection/monitoring of concealed areas • Cleaning of elevator shaft • Corrective Actions identified to date for the shaft are estimated at $40K and include: • Replacement of the 4th floor outside air intake louver • Repair of leaks on one junction level walkway • Insulating of steel beams and roof deck in ASDE penthouse • Replacement of stained ceiling tile in the control cab

7. MCI Current Status • Condensation issues are still unresolved, Additional engineering resources are required to get this resolved. • Base Building evaluation still needs to be conducted. • Requirements for this work were entered into the NAP system and submitted in the FY 09 F&E Budget Submission.

8. MCI ATCT Current Status • Efforts are underway to prepare a project plan, obtain immediate funding for remediation and fully define the requirements/resources required for additional engineering analysis. • Engineering approach has been to resolve moisture issues and then complete remediation (in lieu of continued multiple remediation projects). • Approach will be modified to include immediate abatement of occupied areas in the short term with a long term plan for continued engineering analysis and resolution of the moisture issues. • Need dedicated engineering resources applied to resolve issues.

9. MCI ATCT Current Status • On January 16, local Terminal management received the following: • FOIA request for information pertaining to: requirements documents /funding requests for the current issues, previous mold remediation project; health risk assessments; any air monitoring from recent assessments and previous remediation project. • Request to bargain concerning appropriate accommodations and procedures to be utilized in conducting mold remediation at MCI ATCT. • Representatives from FOH are scheduled to conduct an employee briefing and assessment of the ATCT and base building on January 31 – February 2, 2007.