1. 1 30 October 2002 Former Five Points Outlying Field (OLF) Neighborhood Meeting October 30, 2002

2. 2 30 October 2002 AgendaAgenda Expectations for tonight’s meeting Site history and ordnance Activities since last year Results of new activities Soil sampling strategy Ordnance investigation

3. 3 30 October 2002 Expectations for Tonight’s Meeting Discuss FUDS environmental investigations: –Soil sampling for potential chemical contamination –Engineering Evaluation/Cost Analysis (EE/CA) for ordnance and explosives hazards Will not discuss: –Real estate valuations –Seller’s disclosure obligations –Lawsuits

4. 4 30 October 2002 Five Points OLF History & Chronology 1940 Navy acquired site (162 acres) ~1943 use changed from practice landing strip to practice bombing target Fall 1954 Army conducted ordnance surface clearance action July 1956 GSA conveyed property to private owners, when it was used for agriculture until… Early 1980s – Twin Parks Estates built Mid 1990s – South Ridge Hills developed.

5. 5 30 October 2002 Project locator map of arlington

6. 6 30 October 2002 Types of Ordnance Used at Five Points OLF M-47 Chemical Bombs (probably practice type, filled with water, or maybe real with white phosphorus) MK 23 practice bombs (shotgun shell with black powder) M38A2 practice bombs (filled with sand, rust, water, with black powder “spotting” charge)

7. 7 30 October 2002 Examples of MK-23 Practice Bombs taken from Five Points OLF during early 1970s.

8. 8 30 October 2002 Photos showing hollow interior of MK-23 Practice Bombs.

9. 9 30 October 2002 Activities Since Last Year Completed Archives Search Report (ASR). Held Technical Project Planning (TPP) Workshop. (list of invitees) Interviewed various parties, including the former Major Dallas Lynch Acquired $1M funding for immediate actions. Completed Sampling and Analysis Plan (SAP) for soils. Completed first draft of the Engineering Evaluation /Cost Analysis (EE/CA) Report.

10. 10 30 October 2002 Activities Since Last Year Developed project mailing list Mailed project fact sheet to 250+ people Established web site Established Information Repository at Arlington Public Library

11. 11 30 October 2002 Results of New Activities Risk Assessment Code (RAC) score elevated from “2” to “1” (resulted in funding). Developed project close-out statement Clearance certificates refer to a single site (Five Points) Runways were paved with asphalt. M47 chemical bombs were likely practice. Evidence of live ordnance as late as 1970s. List of “contaminants of concern”. Sampling Plan.

12. 12 30 October 2002 Hazard SeverityHazard ProbabilityRACs result from combination of Hazard Severity score and Hazard Probability score. Hazard Severity types of ordnanceHazard Severity score relates to worst mishap that could occur from the types of ordnance used or present. Hazard Probability accessibility of public to ordnanceHazard Probability score relates to accessibility of public to ordnance. Risk Assessment Code (RAC) Scoring

13. 13 30 October 2002 Risk Assessment Code (RAC) Scoring Table (Oct 2001) FrequentProbableOccasionalRemoteImprobable Catastrophic 11234 Critical 12345 Marginal 23445 Negligible 34455 None 55555 Probability - Accessibility of Public to Ordnance Severity - Type of Ordnance

14. 14 30 October 2002 Risk Assessment Code (RAC) Scoring Table (Feb 2002) FrequentProbableOccasionalRemoteImprobable Catastrophic 11234 Critical 12345 Marginal 23445 Negligible 34455 None 55555 Probability - Accessibility of Public to Ordnance Severity - Type of Ordnance

15. 15 30 October 2002 Risk Assessment Codes (RACs) RAC 1 – Highest priority – recommend further actionRAC 1 – Highest priority – recommend further action RAC 2 – High priority – recommend further action RAC 3 – recommend further action RAC 4 – recommend further action RAC 5 – No Department of Defense Action Indicated Formerly Used Defense Sites (FUDS)

16. 16 30 October 2002 Technical Project Planning Site Closeout Statement “Substantially reduce safety hazards from ordnance and also health risks from potential DoD environmental contamination so that the Former Five Points Outlying Field community feels and is safe living in the neighborhood.” - Technical Project Planning Team (Corps, TCEQ, USEPA, Tarrant County Health Dept., Arlington Police & Fire Depts., residents’ attorney, KBHome)

17. 17 30 October 2002 Contaminants of Concern from DoD Activities Metals (from bodies of MK 23 practice bombs). Lead Zinc Explosives (from ordnance). TNT Tetryl Degradation products (DNT, etc.). White Phosphorus (from M47 chemical bombs).

18. 18 30 October 2002 Substances Not of Concern from DoD Activities Herbicides (asphalt runways) Fuels (no fueling operations) PCBs (no power) Solvents (no maintenance activities) Pesticides (no structures) Other (no causative activities)

19. 19 30 October 2002 Soil Sampling Strategy Examine areas most likely to be contaminated Central target area (~17.5 acres) Historical drainage areas Top two feet of soil (disturbed site) Examine additional areas of concern. Selected lots with “health issues” Soil at six feet in depth

20. 20 30 October 2002 The Former Five Points OLF - Jan. 1995. Note faint outlines of old runway boundaries. Mobile home park built in 1980s. N S EW

21. 21 30 October 2002 The Former Five Points OLF, Jan. 1995. Property boundary in green. Runway outlines in red. Target area outlined in blue. Target center is marked as red bulls eye. All line locations are approximate. N S EW

22. 22 30 October 2002 Five Points OLF in 1943 N

23. 23 30 October 2002 Five Points OLF in 1943 N Target area outlined in blue. Target center is marked as red bulls eye. All line locations are approximate.

24. 24 30 October 2002 Five Points OLF in 1943 N Target area outlined in blue. Target center is marked as red bulls eye. All line locations are approximate. Historical drainage shown in yellow.

25. 25 30 October 2002 Approximate soil sample locations shown as colored dots.

26. 26 30 October 2002 Approximate soil sample locations shown as red and blue dots.

27. 27 30 October 2002 Approximate soil sample locations shown as red and blue dots.

28. 28 30 October 2002 Approximate soil sample locations shown as red and blue dots.

29. 29 30 October 2002 Field Sampling Activities Target Area – 69 locations Non-target area – 48 locations Total117 locations Drainage Areas – 46 locations Non-drainage areas – 71 locations Total117 locations

30. 30 30 October 2002 Field Sampling Activities 117 Sampling locations –117 soil samples at 0” – 24” (top two feet) – 9 soil samples at 60” – 72” (5 – 6 feet) –126 Total soil samples 468 Chemical tests (4 tests x 126 samples) –Lead –Zinc –Explosives –White Phosphorus

31. 31 30 October 2002 Examples of Hydraulic Sampling Equipment

32. 32 30 October 2002 Soil Testing Results Lead and Zinc will be compared to State “average” levels Explosives and white phosphorus will be evaluated by a presence/absence test Any deviations will result in additional sampling

33. 33 30 October 2002 Expectations for Tonight’s Meeting Discuss FUDS environmental investigations: –Soil sampling for potential chemical contamination –Engineering Evaluation/Cost Analysis (EE/CA) for ordnance and explosives hazards

34. 34 30 October 2002 Engineering Evaluation/ Cost Analysis (EE/CA) Purpose: Evaluate ordnance hazards Perform risk evaluation of hazards Perform institutional analysis Identify and evaluate potential response actions to reduce risks from ordnance Recommend one or more response actions

35. 35 30 October 2002 Preliminary Draft EE/CA Preliminary draft still under internal review Final draft expected early 2003 Final draft will be available for public review and comment

36. 36 30 October 2002 Preliminary Draft EE/CA Response Action Alternatives: 1 - No action 2 - Institutional controls (legal, engineering, educational) 3 - Removal of surface ordnance + institutional controls 4 - Removal of surface and subsurface ordnance + institutional controls

37. 37 30 October 2002 Preliminary Draft EE/CA Recommendation: Alternative 4 – Removal of surface and subsurface ordnance + institutional controls Cost: ~ $600K Cleanup Schedule: Start 2003 ($500K funds in budget)

38. 38 30 October 2002 Ordnance Safety DO NOT TOUCH! DO NOT MOVE! Note/record location Call 911 or local law enforcement

39. 39 30 October 2002 Questions?Questions?