WA9601-LR 990714f
HENLEY
JOHNSTON
& ASSOCIATES, INC.
('tlg(llfdf.3Htl.(; .()t*O S{'(('llC(' corh';lltt<,llS
Transmittal
Date: 14 July 1999
To: Sh/mek, Jacobs & Finklea, L.L.P.
Attn: Mr. Gary C. Hendricks, P.E.
Project: Wagon Wheel Ranch
Elevated Storaqe Tank
Centlemen:
Henley-Johnston & Assoc., Inc. transmits herewith the following:
Paint InsDection-ReDortsDated6-2~/6-23-99, 6-24/6-26-99and7-2-99
=Comments: Report Nos.
cc: Lar~' Davis, City of Coppell
Joe Swinnea, Iandmark
Sincerely yours,
Henley-Johnston & Assoc., Inc.
Project No. 6878
telephone (214) 941.3808
fax (214) 943-7645
235 Morgan Ave..
Dallas, Texas- 75203-1088
,Contract Inspection Service
4305 Glenwood f
Granbury, TX 76049
Client Henley Johnston and Assoc.
Contractor TASCO, Inc
ABRASIVE MATERIAL
Abrasive Type
Recycled Air Quality
Equipment
Date
· Page
'Project
Inspector
COAT~SPECTION REPORT ....
6-22/23-99 Keport 13859-9
1 of 2
Coppell Wagon Wheel Ranch 2.0 MG Elevated
Tank
Cindy Holmes, Certified Coating Inspector
SURFACE PREPARATION
Standard Specified
Standard Achieved
Profile Reading
ENVIROMENTAL CONDITIONS
Time 11:00 a.m. 12:05 p.m.
Dry Bulb 86 86
Wet Bulb 79 77
Humidity 73 66
Dew Point 76 73
Surface Temp 81 81-89
Wind Interior S 20
Area
Access tube - Dry side
Access tube / overflow pipe - wet side
Floor, lower cone wall
1:15 p.m.
89
77
58
72
88
S 20+
DRY FILM THICKNESS
COATING MATERIAL
Material used Tnemec Series 20 Color Tank Whit,
Batch No. Part A KC1999050916
Part B KC1999050438
Part C N/A
Thinner #4 KC 1999049 ! 73
Application method Brush touch up holidays
airless spray a&ess tube
Number of Low High Mean Comments
Readings
25 5.1 13.6 8.7 Batch 1
25 9.7 18.8 14.87 Batch 2
40 9.8 23.1 15.7 Batch 3
DFT gage used
Positector 6000
Additional Information: 6-22-99 Obtained dry fihn thickness readings on areas coated 6-18-99. DFT
readings are ou attached page Batch numbers 1 and 2. Readings on dry side of access tube are below those required by job
specification. Remainder of readings meet the 10.0 mils minimum specified. No coating applied today due to rain.
6-23-99 Performed holiday detector test on remainder of interior surfaces not yet checked including lower cone sheets,
floor, raised floor, over flow pipe and access pipe including ladder. Used a 67.5 volt wet sponge holiday detector with
Kodak photo flow in sponge water. Found some holidays along floor weld seams and on ladder and pipe braces. All holidays
were marked with green chalk. Brush touch up holidays started at 11:00 a.m. and completed by 12:15 p.m. This includes
entire ladder area.
Meanwhile contractor has been on exterior roof wire brushing some rust areas from over blast, especially on handrails.
Brush these areas with Tnemec Series 20, Tank White. Also sweep off top of tank with broom to remove dust, in
preparation for finish coat application tomorrow.
Airless spray application of Tnemec Series 20 Tank White to dry side of access tube to build millage. Brush
in the welds prior to finish coat application. Used 415 tip in spray gun to spray the access tube.
This rcport is for the cxclusivc use of our client and shall not be modified or reproduced without writtcn approval of said client
5/14 26532
Readings
Batches
Batch # 1 FE
# READING
1 ~.oo mil
2 8.70 mil
3 5.10 mil
4 11.30 mil
s 9.50 mil
G 9.1o mil
7 7.90 mil
8 8.50 mil
9 7.50 mil
1~ 9.30 mil
11 8.80 mil
12 ~.7o mil
13 7.40 mil
14 8.30 mil
15 7.00 mil
1~ 8.70 mil
18
19 11.00 mil
2o lz.5o mil
21 ~.~o mil
22 9.40 mil
23 9.~0 mil
24 ~3.G0 mit
25 6.10 mi
MAX 13.60 mil
MIM 5,10 mil
14 25
MEAl4 8.70 mil
5TD DEV 2.01 mil
Batch # Z FE
# READING
1 17.80 mil
2 Is.go mil
3 15.oo mi
4 9.70 mi
5 12.90 mil
g 12.79 mil
7- !8.49 mil
8 11.39 mil
9 13.~o mil
19 11.59 mil
i~ 12.60 rnil
12 12.90 mil
1S 14.90 mil
15 18.80 mil
15.50 mil
17 1~.10 mil
t8 15.~0 mil
18.10 mil
20 18.20 mil
lZ.89 mil
16.30 mil
Z3 14.10 mil
24 13.50
25 14.50
MAX 18.80 mil
MIN 9.70 mil
N 25
MEAN 14.87 mil
Batch # 3 FE
# READING
1 13.40 mil
2 11.00 mil
3 13.80 mil
4 12.59 mil
5 16.39 mil
17.79 mil
7 18.50
8 1~.19
19.00 mil
19 19.39 mil
11 12.59 mil
17.~0 mil
13 20.30 mil
14 9.89 mil
is 16.89 mil
18.~9 ~il
17 19.80 ~il
18 17.40 ~il
19 16.30 ~1
20 23.18 mil
21 i~.3o mil
22 15.¢9 mil
23 !4.20 mil
24 12.40 m~l
18.89
15,79 mil
27 14,40 mil
28 1~.30 mil
17.29 mil
30 16.30 mil
31 !5.99 mil
13.10 mil
33 15.89 mil
34 18.40 mil
35 19.4o mil
37 19.30
38 12.09
10.80
lz. se mil
MAX 23.19 mil
KIN 9.89 mil
N 40
MEAN 15.72 mii
5TD DEV 3.08 mil
Contract Inspection Service
4305 Glenwood
Granbury, TX 76049
Client Henley Johnston & Assoc.
Contractor TASCO, Inc
ABRASIVE MA ERIAL
Abrasive Type
ER~T;lme2nt Air ' y
ENVIROMENTAL CONDITIONS
Time * **
Dry Bulb 92 93
Wet Bulb 8 ! 81
Humidity 62 60
Dew Point 77 76
Surface Temp 95 i 06
Wind S 15 S 15-20
Area
6-26-99 DFT's on roof finish coat
Date
Page
Project
Inspector
COATIN~NSPECTION REPORT'': :'':~ ::;':~'
6-24/26-99 ,{.eport 13893-9
1 of 2
Coppell Wagon Wheel Ranch 2.0 MG
Elevated Tank
Cindy Holmes, Certified Coating Inspector
SURFACE PREPARATION
Standard Specified
Standard Achieved
Profile Reading
COATING MATERIAL
Material used
Batch No. Part A
Part B
Part C
Thinner
Tnemec Series 74 Endura-Shield
TX 1999020061, TX i 999020064
KC 19980705040, KC 19980705080
N/A
#39 KC 1999040898
Application method Airless spray, brush
Color - Tank White - WHb2
DRY FILM THICKNESS
Number of Low
Readings
18 6.5
High Mean Comments
16.6 10.7 Batch 1
6-26-99 DFT's on dry side access tube
20 9.4 20.2 12.96 Batch 2
DFT gage used
Positector 6000
Additional Information: 6-24-99 Contractor intended to spray full coat of Series 74 to roof area but during
application it was noted that fisheyes were forming. One panel was then cleaned with thinnet to see if that would solve
the problem. It did not. The Tnemec representative was called and it was decided that due to flight path of airplanes
coming into DFW being directly over the tank that some excess fuel fell on top of the tanks. This was not visible but a
definite possibility. He recommended applying a light coat of Series 74 over the existing coating and then come back with
another coat of Series 74 after that dried. Contractor followed these recommendations and finished applying the light
coat at approximately 12:30 p.m.
6-26-99 Contractor applies another coat of Series 74 to roof area after sweeping off loose dust and bird droppings. The
fisheyes did not seem to reappear but a closer look will be taken after coating has dried. The dry film thickness for
coatings applied so far to roof can be found in Batch I.
An inspection was performed to dry side &access tube today and dry film thickness readings are found in Batch 2. Four (4)
or Five (5) small areas near conduit run and on welds were found that needed additional paint. These areas touched up today.
*6-24-99 10:30 a.m. **6-26-99 3:00 p.m.
This report is for the exclusive use of our client and shall not be modified or reproduced without written approval of said client
,5_-mE~m~m~smFN:3
S/N 20532
Readings
Batches
Batch # I FE ~r~
# READING
1 10.20 mil
2 16.60 mil
3 ~.5o mil
4 lo.8o mil
5 7.~0 ~il
~,90 mil
7 12,70 mil
~.3o mil
9.80 mil
lo 1~.So mil
11 11.8o mil
7.~0 mil
13 14.80 mil
14 6.90 mil
15 11.00 mil
1G 11.50 mil
17 12.10 mil
18 12.10 mil
MAX 1~.00 mil
MIM ¢.50 mil
N 18
MEAN 10.72 mil
6TD DEV 2.09 mil
Batch # 2 FE
READING
1 12.40 mil
2 12.00 mil
3 13.00 mil
4 1~.10 mil
5 14.70 mil
14.90 mil
7 20.20 mil
8 9.40 rail
5 12.70 mil
10 15.80 mil
li 13,50 mil
12 le.2e mil
13 13.10 mil-
l4 11,70
15 i~..ee mil
9.9e mil
17 1'2.80 mil
18 le.~,a mil
1~.70 mil
13.e0 mil
MAX 20.20 mil
MIH 9.40 mil
N 20
MEAN 12.90 mil
5TD DEV 2.54 mil
· ! I
Granbury, TX 76049
Client Henley Johnston & Assoc.
Contractor TASCO, Inc
ABRASIVE MAT~AL
Abrasive Type a,.)
Recycled Air Qua ~ty
Equipment '
Date
Page
Project
Inspector
COATI~ INSPECTION REPORT
7-2-99 Report 13981-9
1 of 2
Coppoll Wagon Wheel Ranch 2.0 MG
Elevated Tank
Cindy Holmes, Certified Coating Inspector
SURFACE PREPARATION
Standard Specified
Standard Achieved
Profile Reading
ENVIROMENTAL CONDITIONS
Dry Bulb
Wet Bulb
Humidity
Dew Point
Surface Temp
Wind
COATING MATERIAL
Material used
Batch No. Part A
Part B
Part C
Thim~er
Application method
Area
DFT's on exterior roof and handrails
DRY FILM THICKNESS
Number of Low
Readings
40 9.7
High Mean Comments
23.7 14.27 Batch I
DFT gage used
Positector 6000
Additional Information: Dry fihn thickness readings on exterior roof meet the specified minimum of
10.0 mils. Readings are listed on page 2 of 2. The fisheyes noted in report #13893-9 in the first coat of finish coat are
covered but indented areas are still visible. The second coat of finish coat formed fisheyes or craters also, but holes
only go down to the first coat of finish coat. No pinholes go all the way through coating system.
The swinging gate for handrails is not hung properly and rubs at the bottom on bearing bars and at top on edge of
handrail. Also there will be more touch up behind temporary conduit for airplane lights when it gets moved.
Th is report is for the exclusive use of our client and shall not be modified or reproduced without written approval of said client
80 Readings
· Z Batches
Batch ~ 1 FE
1:3. :3 ~ m
4 ~.~e ~il
5 15.4e mil
7 i7.10 nil
15.50 nil
le.~O nil
11 1Z.7~ ~il
12 14.70 ~il
13 i7.~ mil
15 ll.80
lz. TQ ~il
i7 i5.~ nil
18 10.gQ nil
1~.30 nil
~.Te mil
11.40 mil
Z3.Te mil
11.70 mil
ll.ZO mil
1G.90
28 17.40 mil
10.BQ mil
S0 13.10
31 14.70 mil
15.80
33 17.~0 mi1
34 ~8.ee
35 ;5.~0
13.8o !~il
38 15.3e nil
~.Te mil
17.1~ mil
MAX 23.70 mil
MIN 9.70 mil
MEAN 14.27 mil
STD DEV 3.42 mil
{ ~ CLvr'J ,,J c~ ~r~D~z-A