1. Environmental Investigators Lonnie Gilley Robin Pugh

2.   Photo Ionization Detector (PID)  Readings in ppm  Can detect a wide variety of Volatile Organic Compounds (VOCs); however, it cannot detect all VOCs  Can be used to monitor atmosphere and screen soils for contamination from VOCs MiniRae 3000

3.   4 specific sensors monitor LEL, O2, CO, and H2S  Can be used to monitor normal atmosphere and subsurface utility manways to determine if they are impacted  Other sensor options capability QRae & QRae II

4.   Photo Ionization Detector (PID)  4 specific sensors monitor LEL, O2, CO, and H2S  Can log data  Can be used to monitor remotely  Multiple monitors from multiple agencies may be used together to create one set of monitoring data from multiple locations, as well as, plume modeling capability AreaRae

5.   Flame ionization device  Detects “total hydrocarbons”  Including methane and ethane Toxic Vapor Analyzer (TVA)

6.   “See” volatile organic compound (VOC) emissions  Can be used to locate source of an emission or plume  Cannot quantify or qualify  Steam dissipates, VOC’s linger Optical Gas Imaging Camera (OGIC)

7.   Can identify compounds  Compare to Air Monitoring Comparison Values (AMCV’s), but with limitations  “Snapshot in time” Summa Canister

8.   Monitors levels of particulate matter  PM 10  PM 2.5  Logs over time  Download to computer DataRAM

9.   Hydrogen Sulfide (H2S) analyzer  Detects down to parts per billion Jerome

10.   Measures  Dissolved Oxygen  Conductivity  pH  Temperature Hydrolab

11.   Gieger Counter Radiological Survey Meter

12.  Equipment Summary Monitoring Device TVAJeromeMiniRAEAreaRAEVRAEQRAE/QRAE II Summa Canister IR GEM 2000 Geiger Counter CH 4 X XX Cl 2 XX CO XX CO 2 X X H2SH2S X XXX HCN XX LEL X X X NH 3 XX NO XX NO 2 XX O2O2 XXX X Radiation X SO 2 XX VOCs X XX XX

13.  Thank you! Questions?  Lonnie Gilley Environmental Investigator TCEQ DFW Region Office 817-588-5841 Lonnie.Gilley@tceq.texas.gov  Robin Pugh Environmental Investigator TCEQ DFW Region Office 817-588-5909 Robin.Pugh@tceq.texas.gov