Lead-Based Paint XRF Test Cover Sheet

Lead Safe Testing, LLC 303-949-8884 info@leadsafetestingllc.com 10200 E. Girard Ave. Bldg. A, Suite 412 Denver, CO 80231 Lead-Based Paint XRF Test Cover Sheet Job Name: Glenwood Springs Decommissioned Wastewater Treatment Facility Test Location: 101 W. 7 th St., Glenwood Springs, CO 81601 Date of Test: 6/19/2017 10:00 a.m. Inspector license number: 17888 Comments / Results: Pre-demo site inspection of Garage Building and Water tanks at/near Garage Building, Old Lab building, Admin and Clarifier building and adjacent Water tanks. Positive readings for Lead-Based Paint (LBP) above the EPA/HUD action level of 1.0 mg/cm 2 are notated below. From the job description given to Lead Safe Testing, LLC this project is to be a complete demolition project and it will be the responsibility of the demolition contractor to dispose of materials containing Lead-Based Paint in accordance with Local, State, and Federal Laws. The purpose of this report is to identify those building components containing LBP above the action level. Other components on the site tested for the presence of LBP but were not above the EPA/HUD action level and can be found in the results spreadsheet. POSITIVE READINGS-- #595 Interior Garage/Mezzanine Metal Support Column #597 Interior Garage/Mezzanine Metal Support Column #613 Interior Hallway Landing Railing #617 Interior Hallway Stair Railing West Stairwell #618 Interior Hallway Stair Stringer West Stairwell #620 Interior Horizontal Metal Pipes connected to North Water Tank Retain these records for a minimum of 3 years or as required by law. Lead Safe Testing, LLC 10200 E. Girard Ave. Building A, Suite 412 Denver, CO 80231 Page 1

#622 Interior Horizontal Metal Valves connected to North Water Tank #629 Interior Garage/Mezzanine Metal Support Beam #655 Interior Mezzanine Metal Support Beam on the 2 nd floor #684 Exterior Roof Access Metal Stair Rail on Side D (East) #685 Exterior Roof Access Metal Stair Stringer on Side D (East) #693 Exterior Catwalk Metal Stair Rail connecting the Garage to the West Tank #778 Interior Metal Beam Hoist support in Room 4 of the Old Lab Building #782 Interior Metal Beam Hoist support in Room 4 of the Old Lab Building #798 Exterior Metal Stair Stringer on Tank 1 #799 Exterior Metal Stair Column on Tank 1 #800 Exterior Metal Stair Rail on Tank 1 #806 Exterior Metal Stair Rail on Tank 2 #807 Exterior Metal Stair Stringer on Tank 2 #812 Exterior Metal Crank Housing on Tank 3 #895 Exterior Metal Lintel on Side A (South) of the Admin Building Locker Room While every effort was made to inspect all components, the possibility exists that other components not inspected could be present behind walls, ceilings, or other components that were not accessible. This inspection report is only valid for components listed herein. Retain these records for a minimum of 3 years or as required by law. Lead Safe Testing, LLC 10200 E. Girard Ave. Building A, Suite 412 Denver, CO 80231 Page 2

XRF Analysis The instrument used for this Lead Paint Inspection was an X-ray fluorescence unit (XRF) manufactured by the Heuresis Corporation serial number 1355. HOW TO INTERPRET XRF READINGS: There are fourteen columns in the XRF table. The interpretation of each column is as follows: Column 1 Reading Number (#): This is the reading number on the instrument. Column 2 Units: The way the instrument correlates the data. Most often mg/cm 2 Column 3 Results: The result of the assay Column 4 Date/Time: This is the time and date the reading was taken. Column 5 User: The certificate number of the inspector performing the lead test. Column 6 Job: The physical address of the job site. Column 7 Location: Interior, Exterior, or Calibration. This column simply states if the assay was take on the interior or the exterior of the site. Additionally, this column can list Calibration. The XRF must be calibrated before inspection and at the end of the inspection. The XRF also needs to be calibrated every 4 hours if the inspection time exceeds 4 hours. Column 8 Room: This column identifies the room where assay was taken. This column may be represented by a - - if the reading was taken on the exterior of a building and the room was unspecified. Column 9 Component: This column identifies the surface that was tested. Some examples are door, door trim, wall, ceiling, window, etc. Retain these records for a minimum of 3 years or as required by law. Lead Safe Testing, LLC 10200 E. Girard Ave. Building A, Suite 412 Denver, CO 80231 Page 3

Column 10 Description: This column identifies an associated part of the components, e.g. sash to describe the sash of a window. This column may be represented by an -- if the reading was taken on a specific component, e.g. a wall will not have an associated part. Column 11 Substrate: This column defines what material the paint was applied to. Substrates are most commonly plaster, drywall or wood but could be other material such as metal, vinyl, or stucco. Column 12 Side: This column determines where the component being tested is located in the room. Side A is usually the street side of the building. Then, going in a clockwise direction, the adjacent sides are labeled B, C and D. Sides A, B, C and D are identified on the Floor Plan where applicable. For example, if you were standing in a bedroom that had two windows on different walls these windows would be identified by the side location such as Window Side A and Window Side B. Column 13 Floor: This simply corresponds to the floor of the building. Column 14 Condition: This column identifies the condition of the paint on the surface being tested. The terms intact, poor, peeling, chalking, cracking are used to describe the paint condition for HUD funded projects. Retain these records for a minimum of 3 years or as required by law. Lead Safe Testing, LLC 10200 E. Girard Ave. Building A, Suite 412 Denver, CO 80231 Page 4

EFFECTIVE DATE: December 1, 2015 MANUFACTURER AND MODEL: Performance Characteristic Sheet Make: Models: Source: Heuresis Model Pb200i 57 Co, 5 mci (nominal new source) FIELD OPERATION GUIDANCE OPERATING PARAMETERS: Action Level mode XRF CALIBRATION CHECK LIMITS: 0.8 to 1.2 mg/cm 2 (inclusive) SUBSTRATE CORRECTION: Not applicable INCONCLUSIVE RANGE OR THRESHOLD: ACTION LEVEL MODE READING DESCRIPTION Results not corrected for substrate bias on any substrate SUBSTRATE THRESHOLD (mg/cm 2 ) Brick 1.0 Concrete 1.0 Drywall 1.0 Metal 1.0 Plaster 1.0 Wood 1.0 BACKGROUND INFORMATION EVALUATION DATA SOURCE AND DATE: This sheet is supplemental information to be used in conjunction with Chapter 7 of the HUD Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing ("HUD Guidelines"). Performance parameters shown on this sheet are calculated using test results on building components in the HUD archive. Testing was conducted on 146 test samples in November 2015, with two separate instruments running software version 2.1-2 in Action Level test mode. The actual source strength of each instrument on the day of testing was approximately 2.0 mci; source ages were approximately one year. OPERATING PARAMETERS

Performance parameters shown in this sheet are applicable only when properly operating the instrument using the manufacturer's instructions and procedures described in Chapter 7 of the HUD Guidelines. XRF CALIBRATION CHECK: The calibration of the XRF instrument should be checked using the paint film nearest 1.0 mg/cm 2 in the NIST Standard Reference Material (SRM) used (e.g., for NIST SRM 2579, use the 1.02 mg/cm 2 film). If the average (rounded to 1 decimal place) of three readings is outside the acceptable calibration check range, follow the manufacturer's instructions to bring the instrument into control before XRF testing proceeds. SUBSTRATE CORRECTION VALUE COMPUTATION: Chapter 7 of the HUD Guidelines provides guidance on correcting XRF results for substrate bias. Supplemental guidance for using the paint film nearest 1.0 mg/cm 2 for substrate correction is provided: XRF results are corrected for substrate bias by subtracting from each XRF result a correction value determined separately in each house for single-family housing or in each development for multifamily housing, for each substrate. The correction value is an average of XRF readings taken over the NIST SRM paint film nearest to 1.0 mg/cm 2 at test locations that have been scraped bare of their paint covering. Compute the correction values as follows: Using the same XRF instrument, take three readings on a bare substrate area covered with the NIST SRM paint film nearest 1 mg/cm 2. Repeat this procedure by taking three more readings on a second bare substrate area of the same substrate covered with the NIST SRM. Compute the correction value for each substrate type where XRF readings indicate substrate correction is needed by computing the average of all six readings as shown below. For each substrate type (the 1.02 mg/cm 2 NIST SRM is shown in this example; use the actual lead loading of the NIST SRM used for substrate correction): Correction value = (1st + 2nd + 3rd + 4th + 5th + 6th Reading)/6-1.02 mg/cm 2 Repeat this procedure for each substrate requiring substrate correction in the house or housing development. EVALUATING THE QUALITY OF XRF TESTING: Randomly select ten testing combinations for retesting from each house or from two randomly selected units in multifamily housing. Conduct XRF re-testing at the ten testing combinations selected for retesting. Determine if the XRF testing in the units or house passed or failed the test by applying the steps below. Compute the Retest Tolerance Limit by the following steps: Determine XRF results for the original and retest XRF readings. Do not correct the original or retest results for substrate bias. In single-family and multi-family housing, a result is defined as a single reading. Therefore, there will be ten original and ten retest XRF results for each house or for the two selected units. Calculate the average of the original XRF result and the retest XRF result for each testing combination. Square the average for each testing combination. Add the ten squared averages together. Call this quantity C. Multiply the number C by 0.0072. Call this quantity D. Add the number 0.032 to D. Call this quantity E.

Take the square root of E. Call this quantity F. Multiply F by 1.645. The result is the Retest Tolerance Limit. Compute the average of all ten original XRF readings. Compute the average of all ten re-test XRF readings. Find the absolute difference of the two averages. If the difference is less than the Retest Tolerance Limit, the inspection has passed the retest. If the difference of the overall averages equals or exceeds the Retest Tolerance Limit, this procedure should be repeated with ten new testing combinations. If the difference of the overall averages is equal to or greater than the Retest Tolerance Limit a second time, then the inspection should be considered deficient. Use of this procedure is estimated to produce a spurious result approximately 1% of the time. That is, results of this procedure will call for further examination when no examination is warranted in approximately 1 out of 100 dwelling units tested. TESTING TIMES: In the Action Level paint test mode, the instrument takes the longest time to complete readings close to the Federal standard of 1.0 mg/cm 2. The table below shows the mean and standard deviation of actual reading times by reading level for paint samples during the November 2015 archive testing. The tested instruments reported readings to one decimal place. No significant differences in reading times by substrate were observed. These times apply only to instruments with the same source strength as those tested (2.0 mci). Instruments with stronger sources will have shorter reading times and those with weaker sources, longer reading times, than those in the table. Mean and Standard Deviation of Reading Times in Action Level Mode by Reading Level Reading (mg/cm 2 ) Mean Reading Time (seconds) Standard Deviation (seconds) < 0.7 3.48 0.47 0.7 7.29 1.92 0.8 13.95 1.78 0.9 1.2 15.25 0.66 1.3 1.4 6.08 2.50 > 1.5 3.32 0.05 CLASSIFICATION OF RESULTS: XRF results are classified as positive if they are greater than or equal to the stated threshold for the instrument (1.0 mg/cm 2 ), and negative if they are less than the threshold. DOCUMENTATION: A report titled Methodology for XRF Performance Characteristic Sheets (EPA 747-R-95-008) provides an explanation of the statistical methodology used to construct the data in the sheets, and provides empirical results from using the recommended inconclusive ranges or thresholds for specific XRF instruments. The report may be downloaded at http://www2.epa.gov/lead/methodology-xrf-performancecharacteristic-sheets-epa-747-r-95-008-september-1997. This XRF Performance Characteristic Sheet (PCS) was developed by QuanTech, Inc., under a contract with the XRF manufacturer.

Reading # mg/cm 2 Result DateTime User Job 584 1 Positive 6/19/201710:24 17888 GSWTF 585 1 Positive 6/19/201710:25 17888 GSWTF 586 1 Positive 6/19/201710:25 17888 GSWTF 587 0.3 Negative 6/19/201710:28 17888 GSWTF-WTB 588 0.1 Negative 6/19/201710:28 17888 GSWTF-WTB 589 0.2 Negative 6/19/201710:29 17888 GSWTF-WTB 590 0.1 Negative 6/19/201710:31 17888 GSWTF-WTB 591 0.1 Negative 6/19/201710:32 17888 GSWTF-WTB 592 0.3 Negative 6/19/201710:33 17888 GSWTF-WTB 593-0.1 Negative 6/19/201710:33 17888 GSWTF-WTB 594 0.1 Negative 6/19/201710:35 17888 GSWTF-WTB 595 1.4 Positive 6/19/201710:37 17888 GSWTF-WTB 596 0.5 Negative 6/19/201710:37 17888 GSWTF-WTB 597 1.5 Positive 6/19/201710:38 17888 GSWTF-WTB 598 0 Negative 6/19/201710:39 17888 GSWTF-WTB 599 0.1 Negative 6/19/201710:39 17888 GSWTF-WTB 600 0.1 Negative 6/19/201710:39 17888 GSWTF-WTB 601 0.1 Negative 6/19/201710:40 17888 GSWTF-WTB 602 0.1 Negative 6/19/201710:42 17888 GSWTF-WTB 603 0 Negative 6/19/201710:42 17888 GSWTF-WTB 604 0.2 Negative 6/19/201710:45 17888 GSWTF-WTB 605 0.1 Negative 6/19/201710:46 17888 GSWTF-WTB 606 0.1 Negative 6/19/201710:49 17888 GSWTF-WTB 607 0.2 Negative 6/19/201710:49 17888 GSWTF-WTB 608 0.4 Negative 6/19/201710:49 17888 GSWTF-WTB 609-0.1 Negative 6/19/201710:50 17888 GSWTF-WTB 610 0.2 Negative 6/19/201710:50 17888 GSWTF-WTB 611 0.1 Negative 6/19/201710:51 17888 GSWTF-WTB 612 0.2 Negative 6/19/201710:51 17888 GSWTF-WTB 613 1 Positive 6/19/201710:51 17888 GSWTF-WTB 614 0.2 Negative 6/19/201710:53 17888 GSWTF-WTB 615 0 Negative 6/19/201710:54 17888 GSWTF-WTB 616 0.1 Negative 6/19/201710:54 17888 GSWTF-WTB 617 1.9 Positive 6/19/201710:54 17888 GSWTF-WTB 618 1.3 Positive 6/19/201710:54 17888 GSWTF-WTB 619 0.1 Negative 6/19/201710:55 17888 GSWTF-WTB 620 2.9 Positive 6/19/201710:56 17888 GSWTF-WTB 621 0.2 Negative 6/19/201710:56 17888 GSWTF-WTB 622 2.6 Positive 6/19/201710:56 17888 GSWTF-WTB 623 0 Negative 6/19/201710:56 17888 GSWTF-WTB GSWTF Report Page 1

624 0.1 Negative 6/19/201711:00 17888 GSWTF-WTB 625 0.1 Negative 6/19/201711:01 17888 GSWTF-WTB 626 0.1 Negative 6/19/201711:04 17888 GSWTF-WTB 627 0.1 Negative 6/19/201711:04 17888 GSWTF-WTB 628 0.2 Negative 6/19/201711:05 17888 GSWTF-WTB 629 1 Positive 6/19/201711:05 17888 GSWTF-WTB 630 0.2 Negative 6/19/201711:14 17888 GSWTF-WTB 631 0.2 Negative 6/19/201711:14 17888 GSWTF-WTB 632 0.1 Negative 6/19/201711:14 17888 GSWTF-WTB 633 0.1 Negative 6/19/201711:15 17888 GSWTF-WTB 634 0.1 Negative 6/19/201711:15 17888 GSWTF-WTB 635 0.1 Negative 6/19/201711:15 17888 GSWTF-WTB 636 0.1 Negative 6/19/201711:15 17888 GSWTF-WTB 637 0.1 Negative 6/19/201711:15 17888 GSWTF-WTB 638 0 Negative 6/19/201711:19 17888 GSWTF-WTB 639 0 Negative 6/19/201711:20 17888 GSWTF-WTB 640 0 Negative 6/19/201711:20 17888 GSWTF-WTB 641 0 Negative 6/19/201711:21 17888 GSWTF-WTB 642 0 Negative 6/19/201711:21 17888 GSWTF-WTB 643 0.2 Negative 6/19/201711:22 17888 GSWTF-WTB 644 0.1 Negative 6/19/201711:23 17888 GSWTF-WTB 645 0.1 Negative 6/19/201711:29 17888 GSWTF-WTB 646 0.1 Negative 6/19/201711:29 17888 GSWTF-WTB 647 0.1 Negative 6/19/201711:29 17888 GSWTF-WTB 648 0.1 Negative 6/19/201711:29 17888 GSWTF-WTB 649 0.1 Negative 6/19/201711:29 17888 GSWTF-WTB 650 0 Negative 6/19/201711:29 17888 GSWTF-WTB 651 0 Negative 6/19/201711:30 17888 GSWTF-WTB 652 0.1 Negative 6/19/201711:30 17888 GSWTF-WTB 653-0.3 Negative 6/19/201711:30 17888 GSWTF-WTB 654 0.1 Negative 6/19/201711:30 17888 GSWTF-WTB 655 1 Positive 6/19/201711:31 17888 GSWTF-WTB 656 0.1 Negative 6/19/201711:32 17888 GSWTF-WTB 657 0 Negative 6/19/201711:34 17888 GSWTF-WTB 658 0.1 Negative 6/19/201711:35 17888 GSWTF-WTB 659 0 Negative 6/19/201711:35 17888 GSWTF-WTB 660 0.1 Negative 6/19/201711:36 17888 GSWTF-WTB 661 0.2 Negative 6/19/201711:37 17888 GSWTF-WTB 662 0.3 Negative 6/19/201711:38 17888 GSWTF-WTB 663 0.1 Negative 6/19/201711:39 17888 GSWTF-WTB 664 0.2 Negative 6/19/201711:39 17888 GSWTF-WTB GSWTF Report Page 2

665 0.7 Negative 6/19/201711:40 17888 GSWTF-WTB 666 0.1 Negative 6/19/201711:44 17888 GSWTF-WTB 667 0.2 Negative 6/19/201711:45 17888 GSWTF-WTB 668 0.3 Negative 6/19/201711:47 17888 GSWTF-WTB 669 0.1 Negative 6/19/201711:48 17888 GSWTF-WTB 670 0.1 Negative 6/19/201711:49 17888 GSWTF-WTB 671 0.2 Negative 6/19/201711:49 17888 GSWTF-WTB 672 0.2 Negative 6/19/201711:49 17888 GSWTF-WTB 673 0.2 Negative 6/19/201711:50 17888 GSWTF-WTB 674 0.1 Negative 6/19/201711:50 17888 GSWTF-WTB 675 0.2 Negative 6/19/201711:50 17888 GSWTF-WTB 676 0.2 Negative 6/19/201711:50 17888 GSWTF-WTB 677 0.2 Negative 6/19/201711:51 17888 GSWTF-WTB 678 0.1 Negative 6/19/201711:51 17888 GSWTF-WTB 679 0.1 Negative 6/19/201711:52 17888 GSWTF-WTB 680 0.1 Negative 6/19/201711:53 17888 GSWTF-WTB 681 0.2 Negative 6/19/201711:55 17888 GSWTF-WTB 682 0.2 Negative 6/19/201711:56 17888 GSWTF-WTB 683 0.8 Negative 6/19/201711:56 17888 GSWTF-WTB 684 1.2 Positive 6/19/201711:57 17888 GSWTF-WTB 685 1.7 Positive 6/19/201711:57 17888 GSWTF-WTB 686 0.1 Negative 6/19/201711:59 17888 GSWTF-WTB 687 0.1 Negative 6/19/201712:01 17888 GSWTF-WTB 688 0 Negative 6/19/201712:01 17888 GSWTF-WTB 689 0.1 Negative 6/19/201712:02 17888 GSWTF-WTB 690 0 Negative 6/19/201712:03 17888 GSWTF-WTB 691 0.2 Negative 6/19/201712:04 17888 GSWTF-WTB 692 0.1 Negative 6/19/201712:05 17888 GSWTF-WTB 693 1.6 Positive 6/19/201712:07 17888 GSWTF-WTB 694 0.1 Negative 6/19/201712:07 17888 GSWTF-WTB 695 0.2 Negative 6/19/201712:07 17888 GSWTF-WTB 696 0.1 Negative 6/19/201712:08 17888 GSWTF-WTB 697 0.1 Negative 6/19/201712:08 17888 GSWTF-WTB 698 0.1 Negative 6/19/201712:09 17888 GSWTF-WTB 699 0 Negative 6/19/201712:12 17888 GSWTF-WTB 700 0.1 Negative 6/19/201712:53 17888 GSWTF-WTB 701 0.2 Negative 6/19/201712:56 17888 GSWTF-WTB 702 0.2 Negative 6/19/201712:57 17888 GSWTF-WTB 703 0.1 Negative 6/19/201712:58 17888 GSWTF-WTB 704 0.1 Negative 6/19/201713:01 17888 GSWTF-WTB 705 0.2 Negative 6/19/201713:01 17888 GSWTF-WTB GSWTF Report Page 3

706 0.1 Negative 6/19/201713:02 17888 GSWTF-WTB 707 0.2 Negative 6/19/201713:03 17888 GSWTF-WTB 708 0.2 Negative 6/19/201713:03 17888 GSWTF-WTB 709 0.2 Negative 6/19/201713:03 17888 GSWTF-WTB 710 0 Negative 6/19/201713:04 17888 GSWTF-WTB 711 0.9 Negative 6/19/201713:11 17888 GSWTF 712 0.9 Negative 6/19/201713:11 17888 GSWTF 713 0.9 Negative 6/19/201713:11 17888 GSWTF 714-0.1 Negative 6/19/201713:12 17888 GSWTF Old Lab 715-0.2 Negative 6/19/201713:12 17888 GSWTF Old Lab 716-0.1 Negative 6/19/201713:13 17888 GSWTF Old Lab 717-0.1 Negative 6/19/201713:13 17888 GSWTF Old Lab 718 0.3 Negative 6/19/201713:13 17888 GSWTF Old Lab 719 0.2 Negative 6/19/201713:14 17888 GSWTF Old Lab 720 0.1 Negative 6/19/201713:14 17888 GSWTF Old Lab 721 0 Negative 6/19/201713:14 17888 GSWTF Old Lab 722 0.2 Negative 6/19/201713:15 17888 GSWTF Old Lab 723 0.4 Negative 6/19/201713:15 17888 GSWTF Old Lab 724 0.4 Negative 6/19/201713:16 17888 GSWTF Old Lab 725 0.1 Negative 6/19/201713:16 17888 GSWTF Old Lab 726-0.1 Negative 6/19/201713:17 17888 GSWTF Old Lab 727 0 Negative 6/19/201713:18 17888 GSWTF Old Lab 728-0.3 Negative 6/19/201713:19 17888 GSWTF Old Lab 729-0.2 Negative 6/19/201713:19 17888 GSWTF Old Lab 730 0.2 Negative 6/19/201713:20 17888 GSWTF Old Lab 731 0.2 Negative 6/19/201713:21 17888 GSWTF Old Lab 732 0.1 Negative 6/19/201713:21 17888 GSWTF Old Lab 733 0.1 Negative 6/19/201713:22 17888 GSWTF Old Lab 734 0.2 Negative 6/19/201713:22 17888 GSWTF Old Lab 735 0.1 Negative 6/19/201713:22 17888 GSWTF Old Lab 736 0.1 Negative 6/19/201713:23 17888 GSWTF Old Lab 737 0.1 Negative 6/19/201713:23 17888 GSWTF Old Lab 738-0.2 Negative 6/19/201713:24 17888 GSWTF Old Lab 739-0.1 Negative 6/19/201713:24 17888 GSWTF Old Lab 740 0.2 Negative 6/19/201713:25 17888 GSWTF Old Lab 741 0 Negative 6/19/201713:25 17888 GSWTF Old Lab 742 0 Negative 6/19/201713:26 17888 GSWTF Old Lab 743 0.2 Negative 6/19/201713:27 17888 GSWTF Old Lab 744 0.3 Negative 6/19/201713:27 17888 GSWTF Old Lab 745 0.1 Negative 6/19/201713:27 17888 GSWTF Old Lab 746 0.2 Negative 6/19/201713:28 17888 GSWTF Old Lab GSWTF Report Page 4

747 0.2 Negative 6/19/201713:28 17888 GSWTF Old Lab 748-0.1 Negative 6/19/201713:29 17888 GSWTF Old Lab 749 0.1 Negative 6/19/201713:29 17888 GSWTF Old Lab 750 0 Negative 6/19/201713:29 17888 GSWTF Old Lab 751 0.3 Negative 6/19/201713:29 17888 GSWTF Old Lab 752 0.1 Negative 6/19/201713:29 17888 GSWTF Old Lab 753 0.7 Negative 6/19/201713:29 17888 GSWTF Old Lab 754 0.1 Negative 6/19/201713:30 17888 GSWTF Old Lab 755 0 Negative 6/19/201713:30 17888 GSWTF Old Lab 756 0.2 Negative 6/19/201713:30 17888 GSWTF Old Lab 757 0.2 Negative 6/19/201713:30 17888 GSWTF Old Lab 758 0 Negative 6/19/201713:31 17888 GSWTF Old Lab 759 0.1 Negative 6/19/201713:31 17888 GSWTF Old Lab 760 0 Negative 6/19/201713:31 17888 GSWTF Old Lab 761 0 Negative 6/19/201713:32 17888 GSWTF Old Lab 762 0.1 Negative 6/19/201713:35 17888 GSWTF Old Lab 763 0.1 Negative 6/19/201713:35 17888 GSWTF Old Lab 764 0.2 Negative 6/19/201713:35 17888 GSWTF Old Lab 765 0.2 Negative 6/19/201713:35 17888 GSWTF Old Lab 766 0.1 Negative 6/19/201713:36 17888 GSWTF Old Lab 767 0.2 Negative 6/19/201713:37 17888 GSWTF Old Lab 768 0.1 Negative 6/19/201713:37 17888 GSWTF Old Lab 769 0.2 Negative 6/19/201713:37 17888 GSWTF Old Lab 770 0.3 Negative 6/19/201713:37 17888 GSWTF Old Lab 771 0 Negative 6/19/201713:38 17888 GSWTF Old Lab 772 0 Negative 6/19/201713:38 17888 GSWTF Old Lab 773 0.3 Negative 6/19/201713:41 17888 GSWTF Old Lab 774-0.1 Negative 6/19/201713:41 17888 GSWTF Old Lab 775 0.1 Negative 6/19/201713:42 17888 GSWTF Old Lab 776 0.3 Negative 6/19/201713:42 17888 GSWTF Old Lab 777-0.3 Negative 6/19/201713:43 17888 GSWTF Old Lab 778 1.2 Positive 6/19/201713:44 17888 GSWTF Old Lab 779 0.1 Negative 6/19/201713:44 17888 GSWTF Old Lab 780 0.8 NULL 6/19/201713:45 17888 GSWTF Old Lab 781 0.8 Negative 6/19/201713:45 17888 GSWTF Old Lab 782 1.3 Positive 6/19/201713:46 17888 GSWTF Old Lab 783 0.2 Negative 6/19/201713:46 17888 GSWTF Old Lab 784 0.4 Negative 6/19/201713:47 17888 GSWTF Old Lab 785 0.4 Negative 6/19/201713:50 17888 GSWTF Old Lab 786 0.3 Negative 6/19/201713:51 17888 GSWTF Old Lab 787 0.3 Negative 6/19/201713:51 17888 GSWTF Old Lab GSWTF Report Page 5

788 0.2 Negative 6/19/201713:52 17888 GSWTF Old Lab 789 0.3 Negative 6/19/201713:52 17888 GSWTF Old Lab 790 0.5 Negative 6/19/201713:52 17888 GSWTF Old Lab 791 0.3 Negative 6/19/201713:52 17888 GSWTF Old Lab 792 0.1 Negative 6/19/201713:54 17888 GSWTF Old Lab 793 0.2 Negative 6/19/201713:55 17888 GSWTF Old Lab 794 0.1 Negative 6/19/201713:55 17888 GSWTF Old Lab 795 0.2 Negative 6/19/201713:55 17888 GSWTF Old Lab 796 0.3 Negative 6/19/201713:58 17888 GSWTF 797 0 Negative 6/19/201713:58 17888 GSWTF 798 2.4 Positive 6/19/201713:58 17888 GSWTF 799 1.1 Positive 6/19/201713:58 17888 GSWTF 800 1.4 Positive 6/19/201713:59 17888 GSWTF 801 0 Negative 6/19/201713:59 17888 GSWTF 802 0.1 Negative 6/19/201713:59 17888 GSWTF 803 0.1 Negative 6/19/201714:00 17888 GSWTF 804 0.2 Negative 6/19/201714:01 17888 GSWTF 805 0.2 Negative 6/19/201714:03 17888 GSWTF 806 2.8 Positive 6/19/201714:04 17888 GSWTF 807 2.1 Positive 6/19/201714:04 17888 GSWTF 808 0 Negative 6/19/201714:05 17888 GSWTF 809 0 Negative 6/19/201714:06 17888 GSWTF 810 0.1 Negative 6/19/201714:06 17888 GSWTF 811 0.3 Negative 6/19/201714:07 17888 GSWTF 812 1.4 Positive 6/19/201714:08 17888 GSWTF 813 0.3 Negative 6/19/201714:09 17888 GSWTF 814 0.2 Negative 6/19/201714:09 17888 GSWTF 815 0.2 Negative 6/19/201714:09 17888 GSWTF 816 0.2 Negative 6/19/201714:09 17888 GSWTF 817 0.5 Negative 6/19/201714:10 17888 GSWTF 818 0.1 Negative 6/19/201714:10 17888 GSWTF 819-0.1 Negative 6/19/201714:11 17888 GSWTF 820 0 Negative 6/19/201714:11 17888 GSWTF 821 0.3 Negative 6/19/201714:12 17888 GSWTF 822 0 Negative 6/19/201714:12 17888 GSWTF 823 0.3 Negative 6/19/201714:25 17888 GSWTF RBC 824 0.1 Negative 6/19/201714:25 17888 GSWTF RBC 825-0.1 Negative 6/19/201714:26 17888 GSWTF RBC 826-0.1 Negative 6/19/201714:26 17888 GSWTF RBC 827 0.4 Negative 6/19/201714:26 17888 GSWTF RBC 828 0.1 Negative 6/19/201714:26 17888 GSWTF RBC GSWTF Report Page 6

829 0.1 Negative 6/19/201714:27 17888 GSWTF RBC 830 0.5 Negative 6/19/201714:27 17888 GSWTF RBC 831 0.5 Negative 6/19/201714:28 17888 GSWTF RBC 832 0.1 Negative 6/19/201714:29 17888 GSWTF RBC 833 0.1 Negative 6/19/201714:29 17888 GSWTF RBC 834 0.1 Negative 6/19/201714:30 17888 GSWTF RBC 835 0.1 Negative 6/19/201714:30 17888 GSWTF RBC 836 0.1 Negative 6/19/201714:32 17888 GSWTF RBC 837 0.1 Negative 6/19/201714:32 17888 GSWTF RBC 838 0.1 Negative 6/19/201714:33 17888 GSWTF RBC 839 0.2 Negative 6/19/201714:33 17888 GSWTF RBC 840 0.2 Negative 6/19/201714:33 17888 GSWTF RBC 841 0.5 Negative 6/19/201714:34 17888 GSWTF RBC 842 0.1 Negative 6/19/201714:34 17888 GSWTF RBC 843-0.2 Negative 6/19/201714:35 17888 GSWTF RBC 844 0.1 Negative 6/19/201714:35 17888 GSWTF RBC 845 0 Negative 6/19/201714:36 17888 GSWTF RBC 846 0.1 Negative 6/19/201714:36 17888 GSWTF RBC 847 0.1 Negative 6/19/201714:37 17888 GSWTF RBC 848 0.1 Negative 6/19/201714:37 17888 GSWTF RBC 849 0.2 Negative 6/19/201714:38 17888 GSWTF RBC 850 0.2 Negative 6/19/201714:38 17888 GSWTF RBC 851 0.2 Negative 6/19/201714:39 17888 GSWTF RBC 852 0.1 Negative 6/19/201714:39 17888 GSWTF RBC 853 0.1 Negative 6/19/201714:40 17888 GSWTF RBC 854 0.2 Negative 6/19/201714:40 17888 GSWTF RBC 855 0 Negative 6/19/201714:41 17888 GSWTF RBC 856 0.1 Negative 6/19/201714:41 17888 GSWTF RBC 857 0.1 Negative 6/19/201714:43 17888 GSWTF RBC 858 0.3 Negative 6/19/201714:43 17888 GSWTF RBC 859 0.2 Negative 6/19/201714:44 17888 GSWTF RBC 860 0 Negative 6/19/201714:45 17888 GSWTF RBC 861 0.3 Negative 6/19/201714:46 17888 GSWTF RBC 862 0.3 Negative 6/19/201714:46 17888 GSWTF RBC 863-0.1 Negative 6/19/201714:46 17888 GSWTF RBC 864 0.2 Negative 6/19/201714:46 17888 GSWTF RBC 865 0.1 Negative 6/19/201714:47 17888 GSWTF RBC 866 0.3 Negative 6/19/201714:47 17888 GSWTF RBC 867 0.5 Negative 6/19/201714:47 17888 GSWTF RBC 868 0.1 Negative 6/19/201714:47 17888 GSWTF RBC 869 0.1 Negative 6/19/201714:48 17888 GSWTF RBC GSWTF Report Page 7

870 0.1 Negative 6/19/201714:48 17888 GSWTF RBC 871-0.1 Negative 6/19/201714:49 17888 GSWTF RBC 872-0.1 Negative 6/19/201714:49 17888 GSWTF RBC 873-0.2 Negative 6/19/201714:49 17888 GSWTF RBC 874 0.1 Negative 6/19/201714:49 17888 GSWTF RBC 875-0.2 Negative 6/19/201714:50 17888 GSWTF RBC 876-0.1 Negative 6/19/201714:51 17888 GSWTF RBC 877-0.1 Negative 6/19/201714:51 17888 GSWTF RBC 878-0.1 Negative 6/19/201714:51 17888 GSWTF RBC 879 0 Negative 6/19/201714:52 17888 GSWTF RBC 880 0.2 Negative 6/19/201714:53 17888 GSWTF RBC 881 0.2 Negative 6/19/201714:54 17888 GSWTF RBC 882 0.1 Negative 6/19/201714:55 17888 GSWTF RBC 883 0.1 Negative 6/19/201714:55 17888 GSWTF RBC 884 0.2 Negative 6/19/201714:55 17888 GSWTF RBC 885 0.1 Negative 6/19/201714:56 17888 GSWTF RBC 886 0.2 Negative 6/19/201714:57 17888 GSWTF RBC 887 0.1 Negative 6/19/201714:58 17888 GSWTF RBC 888 0.2 Negative 6/19/201714:59 17888 GSWTF RBC 889 0.1 Negative 6/19/201714:59 17888 GSWTF RBC 890 0 Negative 6/19/201715:00 17888 GSWTF RBC 891-0.2 Negative 6/19/201715:01 17888 GSWTF RBC 892 0 Negative 6/19/201715:01 17888 GSWTF RBC 893 0.1 Negative 6/19/201715:01 17888 GSWTF RBC 894 0.1 Negative 6/19/201715:03 17888 GSWTF RBC 895 1.1 Positive 6/19/201715:03 17888 GSWTF RBC 896 0.1 Negative 6/19/201715:04 17888 GSWTF RBC 897 0.1 Negative 6/19/201715:04 17888 GSWTF RBC 898 0.1 Negative 6/19/201715:05 17888 GSWTF RBC 899 0.2 Negative 6/19/201715:06 17888 GSWTF RBC 900 0.1 Negative 6/19/201715:06 17888 GSWTF RBC 901 0.1 Negative 6/19/201715:08 17888 GSWTF RBC 902 0.2 Negative 6/19/201715:09 17888 GSWTF RBC 903 0.1 Negative 6/19/201715:09 17888 GSWTF RBC 904 0.2 Negative 6/19/201715:10 17888 GSWTF RBC 905 0.1 Negative 6/19/201715:11 17888 GSWTF RBC 906 0.1 Negative 6/19/201715:11 17888 GSWTF RBC 907 0.1 Negative 6/19/201715:12 17888 GSWTF RBC 908 0.3 Negative 6/19/201715:12 17888 GSWTF RBC 909 0.1 Negative 6/19/201715:12 17888 GSWTF RBC 910 0.2 Negative 6/19/201715:12 17888 GSWTF RBC GSWTF Report Page 8

911 0.1 Negative 6/19/201715:14 17888 GSWTF RBC 912 0.9 Negative 6/19/201715:15 17888 GSWTF 913 1 Positive 6/19/201715:16 17888 GSWTF 914 1 Positive 6/19/201715:16 17888 GSWTF GSWTF Report Page 9

Location Room Component Description Substrate Side Floor Condition Calibration Calibration Calibration Interior Garage Window -- Metal B First Intact Interior Garage Window -- Metal D First Intact Interior Garage Door -- Metal A First Intact Interior Garage Door -- Metal A First Intact Interior Garage Door Jamb Metal A First Intact Interior Garage Wall -- Concrete C First Intact Interior Garage Wall -- Concrete B First Intact Interior Garage Wall -- Concrete B First Intact Interior Garage Column -- Metal B First Intact Interior Garage Column -- Metal B First Intact Interior Garage Column -- Metal B First Intact Interior Garage Pipe Horizontal PVC B First Intact Interior Garage Pipe Horizontal Metal B First Intact Interior Garage Pipe Horizontal Metal B First Intact Interior Garage Pipe Horizontal Metal B First Intact Interior Garage Pipe Vertical PVC B First Intact Interior Garage Pipe Horizontal PVC B First Intact Interior Garage Door -- Metal C First Intact Interior Garage Door Jamb Metal C First Intact Interior Hallway Door Jamb Metal C First Intact Interior Hallway Door -- Metal C First Intact Interior Hallway Floor -- Concrete C First Intact Interior Hallway Wall -- Concrete A First Intact Interior Hallway Wall -- Concrete B First Intact Interior Hallway Wall -- Concrete C First Intact Interior Hallway Wall -- Concrete D First Intact Interior Hallway Landing Rail Metal A First Intact Interior Hallway Boiler -- Metal A First Intact Interior Hallway Boiler -- Metal A First Intact Interior Hallway Stair Rail Metal B First Intact Interior Hallway Stair Rail Metal B First Intact Interior Hallway Stair Stringer Metal B First Intact Interior Hallway Stair Tread Metal B First Intact Interior Hallway Pipe Horizontal Metal C First Intact Interior Hallway Pipe Horizontal Metal C First Intact Interior Hallway Valve Horizontal Metal C First Intact Interior Hallway Pipe Horizontal Metal C First Intact GSWTF Report Page 10

Interior Hallway Pipe Horizontal Metal C First Intact Interior Hallway Pipe Vertical PVC C First Intact Interior Garage Pipe Horizontal PVC D First Intact Interior Garage Truss Horizontal Metal D First Intact Interior Garage Decking Horizontal Metal D First Intact Interior Garage Beam -- Metal D First Intact Interior Hallway Pipe Horizontal Metal D First Intact Interior Hallway Pipe Horizontal Metal D First Intact Interior Hallway Pipe Horizontal Metal D First Intact Interior Hallway Pipe Horizontal Metal D First Intact Interior Hallway Pipe Horizontal Metal D First Intact Interior Hallway Pipe Horizontal Metal D First Intact Interior Hallway Pipe Horizontal Metal D First Intact Interior Hallway Pipe Horizontal Metal D First Intact Interior Hallway Pipe Horizontal Metal C First Intact Interior Hallway Pipe Horizontal Metal C First Intact Interior Hallway Pipe Horizontal Metal C First Intact Interior Hallway Pipe Horizontal Metal C First Intact Interior Hallway Pipe Horizontal Metal A First Intact Interior Hallway Pipe Horizontal Metal A First Intact Interior Hallway Pipe Horizontal Metal A First Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Beam -- Metal A Second Intact Interior Mezzanine Beam -- Metal A Second Intact Interior Mezzanine Pipe Vertical Metal C Second Intact Interior Mezzanine Pipe Vertical Metal C Second Intact Interior Mezzanine Pipe Vertical Metal C Second Intact Interior Mezzanine Pipe Horizontal Metal C Second Intact Interior Mezzanine Wall -- Concrete A Second Intact Interior Mezzanine Wall -- Concrete C Second Intact Interior Mezzanine Window -- Metal B Second Intact Interior Mezzanine Window -- Metal B Second Intact GSWTF Report Page 11

Exterior Mezzanine Window Lintel Metal B Second Intact Exterior Mezzanine Window Lintel Metal C Second Intact Exterior Mezzanine Window Lintel Metal C Second Intact Exterior Bathroom 1 Wall -- Drywall D Second Intact Exterior Bathroom 1 Wall -- Drywall C Second Intact Exterior Bathroom 1 Door Jamb Drywall C Second Intact Exterior Bathroom 1 Door -- Drywall C Second Intact Interior Bathroom 1 Door -- Drywall C Second Intact Interior Bathroom 1 Door Jamb Drywall C Second Intact Interior Bathroom 1 Wall -- Drywall B Second Intact Interior Bathroom 1 Wall -- Drywall C Second Intact Interior Bathroom 1 Ceiling -- Drywall C Second Intact Interior Mezzanine Door -- Metal D Second Intact Interior Mezzanine Door Jamb Metal D Second Intact Interior Mezzanine Truss -- Metal D Second Intact Interior Mezzanine Decking -- Metal D Second Intact Exterior Mezzanine Door Jamb Metal D Second Intact Exterior Mezzanine Door -- Metal D Second Intact Exterior Roof Access Stair Rail Metal D Second Intact Exterior Roof Access Stair Rail Metal D Second Intact Exterior Roof Access Stair Stringer Metal D Second Intact Exterior South Tank Hatch -- Metal -- Second Intact Exterior South Tank Tank Lid -- Metal -- Second Intact Exterior South Tank Tank Latch -- Metal -- Second Intact Exterior South Tank Guard Rail -- Metal -- Second Intact Exterior Garage Fascia -- Wood A Second Poor Exterior Garage Fascia -- Wood D Second Poor Exterior Garage Fascia -- Wood B Second Poor Exterior Catwalk Stair Rail Metal B Second Intact Exterior Catwalk Hatch Landing Metal B Second Intact Exterior West Tank Tank Lid -- Metal B Second Intact Exterior West Tank Tank Latch -- Metal B Second Intact Exterior West Tank Guard Rail -- Metal B Second Intact Exterior West Tank Hatch -- Metal B Second Intact Exterior North Tank Tank Lid -- Metal B Second Intact Exterior North Tank Tank Latch -- Metal B Second Intact Exterior North Tank Guard Rail -- Metal B Second Intact Exterior North Tank Wall -- Concrete B First Intact Exterior West Tank Wall -- Concrete B First Intact Exterior Garage Window Lintel Metal D First Intact Exterior Garage Door Jamb Metal D First Intact GSWTF Report Page 12

Exterior Garage Door -- Metal D First Intact Exterior Garage Door -- Metal D First Intact Exterior Garage Door -- Metal D First Intact Exterior Garage Door Jamb Metal D First Intact Exterior Garage Window Lintel Metal B First Intact Calibration Calibration Calibration Interior Room 1 Wall -- Concrete A First Intact Interior Room 1 Wall -- Concrete B First Intact Interior Room 1 Wall -- Concrete C First Intact Interior Room 1 Wall -- Concrete D First Intact Interior Room 1 Ceiling -- Concrete D First Intact Interior Room 1 Window Jamb Wood D First Intact Interior Room 1 Pipe Horizontal PVC D First Intact Interior Room 1 Pipe Horizontal PVC D First Intact Interior Room 1 Door -- Metal D First Intact Interior Room 1 Door Jamb Metal D First Intact Interior Room 2 Door Jamb Metal D First Intact Interior Room 2 Door -- Metal D First Intact Interior Room 2 Wall -- Concrete A First Intact Interior Room 2 Wall -- Concrete B First Intact Interior Room 2 Wall -- Concrete C First Intact Interior Room 2 Wall -- Concrete D First Intact Interior Room 2 Ceiling -- Concrete D First Intact Interior Room 2 Wall -- Drywall B First Intact Interior Room 2 Wall -- Drywall A First Intact Interior Room 2 Door Trim Wood A First Intact Interior Room 2 Door -- Wood A First Intact Interior Room 2 Door Jamb Wood A First Intact Interior Stairwell Door Trim Wood C First Intact Interior Stairwell Door -- Wood C First Intact Interior Stairwell Wall -- Concrete A First Intact Interior Stairwell Wall -- Concrete B First Intact Interior Stairwell Wall -- Drywall C First Intact Interior Stairwell Wall -- Drywall D First Intact Interior Stairwell Wall -- Concrete A Basemen Intact Interior Stairwell Wall -- Concrete B Basemen Intact Interior Mechanical Room Wall -- Concrete C Basemen Intact Interior Mechanical Room Wall -- Concrete D Basemen Intact Interior Mechanical Room Pipe Horizontal Metal A Basemen Intact GSWTF Report Page 13

Interior Mechanical Room Pipe Horizontal Metal A Basemen Intact Interior Mechanical Room Pipe Horizontal Metal A Basemen Intact Interior Mechanical Room Pipe Horizontal Metal A Basemen Intact Interior Mechanical Room Pipe Horizontal Metal A Basemen Intact Interior Mechanical Room Pipe Horizontal Metal A Basemen Intact Interior Mechanical Room Pipe Horizontal Metal A Basemen Intact Interior Mechanical Room Pipe Horizontal Metal A Basemen Intact Interior Mechanical Room Pipe Horizontal Metal A Basemen Intact Interior Mechanical Room Pipe Horizontal Metal A Basemen Intact Interior Mechanical Room Vent -- Metal A Basemen Intact Interior Mechanical Room Stair Rail Metal A Basemen Intact Interior Mechanical Room Stair Tread Metal A Basemen Intact Interior Mechanical Room Stair Post Metal A Basemen Intact Interior Mechanical Room Stair Baluster Metal A Basemen Intact Interior Mechanical Room Pipe Vertical Metal A Basemen Intact Interior Room 3 Wall -- Drywall A First Intact Interior Room 3 Wall -- Drywall B First Intact Interior Room 3 Wall -- Drywall C First Intact Interior Room 3 Wall -- Drywall D First Intact Interior Room 3 Ceiling Drywall D First Intact Interior Room 3 Door Trim Wood A First Intact Interior Room 3 Door Jamb Wood A First Intact Interior Room 3 Baseboard -- Wood A First Intact Interior Room 3 Baseboard -- Wood B First Intact Interior Room 3 Baseboard -- Wood C First Intact Interior Room 3 Baseboard -- Wood D First Intact Interior Room 4 Wall -- Concrete C First Intact Interior Room 4 Wall -- Concrete D First Intact Interior Room 4 Wall -- Concrete B First Intact Interior Room 4 Ceiling -- Concrete B First Intact Interior Room 4 Wall -- Concrete A First Intact Interior Room 4 Beam -- Metal A First Intact Interior Room 4 Beam -- Metal A First Intact Interior Room 4 Door Lintel Metal D First Intact Interior Room 4 Door Lintel Metal D First Intact Interior Room 4 Beam -- Metal D First Intact Interior Room 4 Door -- Metal D First Intact Interior Room 4 Door Jamb Metal D First Intact Exterior Room 4 Floor - Concrete D First Intact Interior Room 1 Floor - Concrete D First Intact Interior Room 2 Floor - Concrete D First Intact GSWTF Report Page 14

Exterior Door -- Metal C First Intact Exterior Door Jamb Metal C First Intact Exterior Door Jamb Metal D First Intact Exterior Door -- Metal D First Intact Exterior Wall -- Concrete A First Intact Exterior Wall -- Concrete B First Intact Exterior Wall -- Concrete C First Intact Exterior Wall -- Concrete D First Intact Exterior Tank 1 Stair Rail Metal D First Intact Exterior Tank 1 Stair Tread Metal D First Intact Exterior Tank 1 Stair Stringer Metal D First Intact Exterior Tank 1 Stair Column Metal D First Intact Exterior Tank 1 Stair Rail Metal D First Intact Exterior Tank 1 Stair Landing Metal D First Intact Exterior Tank 1 Catwalk Rail Metal D First Intact Exterior Tank 1 Catwalk Landing Metal D First Intact Exterior Tank 1 Wall -- Concrete D First Intact Exterior Tank 2 Wall -- Concrete D First Intact Exterior Tank 2 Stair Rail Metal D First Intact Exterior Tank 2 Stair Stringer Metal D First Intact Exterior Tank 2 Stair Landing Metal D First Intact Exterior Tank 2 Catwalk Rail Metal D First Intact Exterior Tank 2 Catwalk Landing Metal D First Intact Exterior Tank 2 Crank Housing -- Metal D First Intact Exterior Tank 3 Crank Housing -- Metal D First Intact Exterior Tank 3 Stair Rail Metal D First Intact Exterior Tank 3 Stair Stringer Metal D First Intact Exterior Tank 3 Stair Landing Metal D First Intact Exterior Tank 3 Catwalk Rail Metal D First Intact Exterior Tank 3 Catwalk Landing Concrete D First Intact Exterior Tank 4 Wall -- Concrete D First Intact Exterior Tank 4 Stair Rail Metal D First Intact Exterior Tank 4 Stair Landing Metal D First Intact Exterior Tank 4 Catwalk Rail Metal D First Intact Exterior Tank 4 Catwalk Landing Metal D First Intact Interior Bathroom 1 Wall -- Concrete A First Intact Interior Bathroom 1 Wall -- Drywall B First Intact Interior Bathroom 1 Wall -- Concrete B First Intact Interior Bathroom 1 Wall -- Concrete C First Intact Interior Bathroom 1 Door Jamb Metal C First Intact Interior Bathroom 1 Door -- Wood C First Intact GSWTF Report Page 15

Interior Hallway Door -- Wood A First Intact Interior Hallway Door Jamb Metal A First Intact Interior Hallway Wall -- Concrete A First Intact Interior Hallway Wall -- Drywall B First Intact Interior Hallway Wall -- Drywall C First Intact Interior Hallway Door -- Metal C First Intact Interior Hallway Door Jamb Metal C First Intact Interior Hallway Door Jamb Wood B First Intact Interior Hallway Door Jamb Wood C First Intact Interior Office Wall -- Drywall A First Intact Interior Office Wall -- Drywall B First Intact Interior Office Wall -- Drywall C First Intact Interior Office Window Jamb Metal D First Intact Interior Office Window Jamb Wood D First Intact Interior Office Window Jamb Wood B First Intact Interior Office Door -- Wood C First Intact Interior Office Door Jamb Metal C First Intact Interior Office 2 Door Jamb Metal A First Intact Interior Office 2 Door -- Wood A First Intact Interior Office 2 Door Jamb Metal B First Intact Interior Office 2 Wall -- Drywall A First Intact Interior Office 2 Wall -- Drywall B First Intact Interior Lab Wall -- Drywall A First Intact Interior Lab Wall -- Drywall D First Intact Interior Lab Door Jamb Metal A First Intact Interior Lab Door Jamb Metal C First Intact Interior Lab Door -- Metal C First Intact Interior Lab Door -- Metal A First Intact Interior Lab Truss -- Metal A First Intact Interior Lab Decking -- Metal A First Intact Interior Lab Floor - Concrete A First Intact Interior Breakroom Wall -- Concrete A First Intact Interior Breakroom Wall -- Drywall B First Intact Interior Breakroom Wall -- Drywall C First Intact Interior Breakroom Wall -- Drywall D First Intact Interior Breakroom Door Jamb Metal D First Intact Interior Breakroom Door Jamb Metal C First Intact Interior Breakroom Door Jamb Metal B First Intact Interior Breakroom Door Jamb Metal A First Intact Interior Breakroom Door -- Wood A First Intact Interior Breakroom Door -- Metal B First Intact GSWTF Report Page 16

Interior Breakroom Door -- Metal C First Intact Interior Laundry Wall -- Concrete A First Intact Interior Laundry Wall -- Concrete B First Intact Interior Laundry Wall -- Concrete C First Intact Interior Laundry Wall -- Concrete D First Intact Interior Laundry Door Jamb Metal B First Intact Interior Locker Room Wall -- Concrete B First Intact Interior Locker Room Wall -- Concrete C First Intact Interior Locker Room Wall -- Concrete D First Intact Interior Locker Room Wall -- Concrete D First Intact Interior Clarifier Room Column - Concrete A First Intact Interior Clarifier Room Beam - Concrete A First Intact Interior Clarifier Room Pipe Horizontal PVC A First Intact Interior Clarifier Room Pipe Vertical Metal A First Intact Interior Clarifier Room Pipe Horizontal Metal A First Intact Interior Clarifier Room Column -- Metal A First Intact Interior Clarifier Room Beam -- Metal A First Intact Interior Clarifier Room Door -- Wood B First Intact Interior Clarifier Room Door Jamb Metal B First Intact Interior Clarifier Room Beam -- Metal C First Intact Interior Clarifier Room Column -- Metal C First Intact Interior Clarifier Room Support Bracket -- Metal C First Intact Interior Clarifier Room Door -- Metal C First Intact Interior Clarifier Room Door Jamb Metal C First Intact Exterior Locker Room Window Lintel Metal D First Intact Exterior Locker Room Window Lintel Metal A First Intact Exterior Locker Room Door -- Metal A First Intact Exterior Locker Room Door Jamb Metal A First Intact Exterior Clarifier Room Window Lintel Metal A First Intact Exterior Clarifier Room Downspout -- Metal A First Intact Exterior Clarifier Room Pipe Horizontal PVC A First Intact Exterior Clarifier Room Door -- Wood B First Intact Exterior Clarifier Room Window Lintel Metal B First Intact Exterior Clarifier Room Downspout -- Metal C First Intact Exterior Clarifier Room Window Lintel Metal C First Intact Exterior Office Window Lintel Metal B First Intact Exterior Office Window Lintel Metal C First Intact Exterior Office Door -- Metal C First Intact Exterior Office Door Jamb Metal C First Intact Exterior Clarifier Room Door Jamb Metal C First Intact Exterior Clarifier Room Door -- Metal C First Intact GSWTF Report Page 17

Exterior Office Downspout -- Metal C First Intact Calibration Calibration Calibration GSWTF Report Page 18