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WA9601-LR 990603HENLEY JOHNSTON & ASSOCIATES, INC. ('rlg~/lc, f,,r~flg ,(J(°O~C((~IIC(: COIl.~llI(Clllt,~ Transmittal " Date: 3 June 1999 To: Shimek, Jacobs & Finklea, L.L.P. Attn: Mr. C~ry C. Hendricks, P.E. P r o j e c t: Wagon Wheel Ranch Elevated Storaqe Tank Gentlemen: Henley-Johnston & Assoc., Inc. transmits herewith the following: CbatingInspectionReportsl~ated. 5-19-9~, 5-20.-99, 5-21-99 & 5-24-99 Comments: Report Nos. Day" ~ City of Coppe!l Joe Swinnea, Landmark Sincerely yours, Herbert C. ~"~,~..r Henley-Johnston & Assoc., Inc. Project No. 6878 telephone [214] 941.3808 fax [214] 943-7645 235 Morgan Ave., Dallas, Texas 75203.1088 ! I Contract Inspection Service 4305 Glenwood 3 Granbury, TX 76049 Client Henley Johnston & Assoc. Project Date Page Inspector Contractor TASCO, Inc ABRASIVE MATERIAL Abrasive Type Silica Sand (Sugar Sand) Recycled No Air Quality Good Equipment Su!lair 10,000 CFM, 2 blast lines ENVIROMENTAL CONDITIONS Time 12:10 p.m. 4:45 p.m. Dry Bulb 81 83 Wet Bulb 67 67 Humidity 48 43 Dew Point 59 58 Surface Temp 81 102 Wind E ! 5 SE 15-20 COATI,~ INSPECTION REPORT 5-19-99 .,eport 1342S-9 1 of 1 Coppell Wagon Wheel Ranch 2.0 MG Tank Coppell, TX Cindy Holmes, Certified Coating Inspector DFT gage used SURFACE PREPARATION Standard Specified Exterior SSPC-SP 6 Standard Achieved SSPC-SP 6 Profile Reading Average 2.5 mils 2 Readings taken COATING MATERIAL Material used Tnemec Series 20 Pota-Pox Batch No. Part A KC1999030439 Part B KC 19990407 i 3 Part C N/A Thinner #4 KC 1999029162 Application meth~'d Airless spray, brush Color- Beige 1255 DRY FILM THICKNESS Number of Low Readings High Mean Comments Additional Information: Contractor moved blast equipment back on site and started abrasive blast exterior roof sheets, Blast bare metal areas clean to SSPC-SP 6 cleanliness. Brush blast over existing prime coat to remove din and scarify surface. Thirteen (13) roof sheets blasted today from outer edge up to 5' away from handrail. · Several spots on welds not SSPC-SP 6 clean. These areas were not coated today. Airless spray application from 5:15 p.m. to 6:I0 p.m. Also brush and roll welds to work paint into rough areas on welds. This report is for the exclusive use of our client and shall not be modified or reproduced without written approval of said client Contract Inspection Service 4305 Glenwood Granbury, TX 76049 Client Henley Johnston, Assoc. Project Date Page COATI~ INSPECTION REPORT 5-20-99 ,:'port 13444-9 1 of 1 Coppell Wagon Wheel Ranch 2.0 MG Tank Contractor TASCO, Inc ABRASIVE MATERIAL Abrasive Type Silica Sand Recycled No Air Quality Okay Equipment 2 blast nozzles ,Inspector Cindy Holmes, Certified Coating Inspector SURFACE PREPARATION Standard Specified Exter. SSPC-SP 6 Standm'd Achieved SSPC-sP 6 Profile Reading Average 2.5 mils ENVIROMENTAL CONDITIONS COATING MATERIAL Time 1:20 p.m. 3:30 p.m. Material used Tnemec Series 20 Pota-Pox Dry Bulb 81 84 Batch No. Part A KC 1999030439 Wet Bulb 73 71 Part B KC 1999040713 Humidity 69 52 Part C N/A Dew Point 70 65 Thinner #4 KC 1999029162 Surface Temp 74-83 84-90 Application method Airless spray, brush Wind S 20-25 S 20-30 Color Beige 1255 : DRY FILM THICKNESS Area Number of Low High Mean Comments Readings DFT's on areas coated 5-19-99 15 2.7 5.6 3.9 DFT's on existing primer on roof sheets 25 3.4 6.1 4.5 DFT gage used Positector 6000 Additional Information: Contractor has completed thc abrasivc blast on exterior roof surS~ccs includit~g handrails. All caulking has been removed from roof edge and sharp edges ground smooth. Existing shop primer on roof sheets was brush blasted to remove dirt and scarify surface. Cathodic protection holes have been cut in roof. One hole was cut over stiflenet beam and stiffener plate was cut with a torch so edges are rough. Blast hoses have been dropped down into bowl of tank and blast has started on floor'surfaces. No coating to be applied to interior today. Exterior roof surfaces are coated by airless spray - 417 tips - I gun - Graco Bulldog Pump. Start application at 4:05 p.m. Complete by 6:15 p.m. Use approximately ten (10) gallons &material. Brush applied coating in some weld areas. Coated only bare areas today (weld seams). This report is for thc cxclusivc usc of our client and shall not bc modified or repmduc, ed without written approval of said client "I ......I' I I Contract Inspection Service 4305 Glenwood ,r } Granbury, TX 76049 Client Henley Johnston, Inc Date Page Project ' Contractor TASCO, Inc ABRASIVE MATERIAL Abrasive Type Silica Sand Bulk Recycled No ' Air Quality Okay Equipment 750 compressor; 2 blast nozzles .Inspector 1 of 1 Coppell Wagon Wheel Ranch 2.0 MG Elevated Tank Cindy Holmes, Certified Coating Inspector SURFACE PREPARATION Standard Specified Interior SSPC-SP 10 Standard Achieved Interior not inspected today Profile Reading ENVIROMENTAL CONDITIONS Time 10:30 a.m. 12:45 p.m. Dry Bulb 82 83 Wet Bulb 72 74 Humidity 61 66 Dew Point 67 70 Surface Temp 80-86 83-88 Wind S 20 S 20 Area COATING MATERIAL Material used _Batch No. Part A Part B .Part C Thinner Application method DRY FILM THICKNESS Number of Low Readings Tnemec Series 20 Pota-Pox KC! 999030439 KC i 999040713 N/A #4 - KC 1999029162 Airless spray High Mean Comments DFT gage used Additional Information: Abrasive blast to interior tloor and lower cone wall. No coating to be apl~!icd to interior surthces today. Airless spray application of intermediate coat to exterior roof surfaces. This includes handrails and bearing bars. Spray application staffed at 10:40 a.m. and was completed by 1:30 p.m. This report is for the cxclusivc usc ofour clicnt and shall not be modi~cd or rcproduccd without written approval orsaid client ! 1 Contract Inspection Service 4305 Glenwood C3 Granbury, TX 76049 Client Henley Johnston, Assoc. Contractor TASCO, Inc ABRASIVE MATERIAL Abrasive Type Silica Sand "Sugar Sand" Recycled No Air Quality Good Equipment 2 blast nozzles Date Page Project Inspector COATII~ INSPECTION REPORT 5-24-99 ~port 13490-9 1 of 1 Coppell Wagon Wheel Ranch 2.0 MG Elevated Tank Cindy Holmes, Certified Coating Inspector SURFACE PREPARATION Standard Specified Interior SSPC-SP 10 Standard Achieved SSPC-SP 10 Profile Reading Average 2.43 mils ENVIROMENTAL CONDITIONS Time 2:!5 p.m. 4:45 p.m. Dry Bulb 90 88 Wet Bulb 65 66 Humidity 24 30 Dew Point 48 52 Surface Temp 89 83 Wind North 8 Interior Area COATING MATERIAL Material used Tnemec Series 20 Pota-Pox Batch No. Part A. KC 199904 1432 Part B KC 1999041534 Part C N/A Thinner #4 Application method Airless spray, Color- Beige - 1255 : DRY FILM THICKNESS Number of Low Readings High Mean Comments DFT gage used Additional Information: Abrasive blast to interior floor (curved and flat areas), exterior of access tube and overflow pipe to 8' off floor and about 8' up on inner cone wall 360 degrees around. Full blast to all weld seams and scratches. These areas cleaned to SSPC-SP 10. Brush blast over existing shop applied primer to scarify surface and remove concrete particles from construction process. Sweep dust off all curved floor and walls and pipes. Push sand and dust down to flat floor where it will cover and protect the blast there. Some areas were skipped during blast operation and will not be coated today, such as manway access area and ladder brace weld. After dust has settled area to be coated was swept again and then primer applied. Primer applied to bare metal areas and also over existing primed areas. This report is for the exclusive use of our client and shall not be modified or reproduced without written approval of said client | 1