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HomeMy WebLinkAboutWTR2703214_11Page 1 of 1 From: Mark Miller [mmiller@rh2.com] Sent: Wednesday, April 13, 2011 9:29 AM To: Thomas H. Malphrus Subject: RE: 2-Year Warranty Inspection Hi Tom, Thank you for keeping us in the loop. I will review these documents and get back to you if we have any questions. Thanks, Mark From: Thomas H. Malphrus rmailto:Tmalphrus@Rentonwa.govl Sent: Wednesday, April 13, 2011 9:23 AM To: Mark Miller Subject: 2-Year Warranty Inspection Mark: Please see the attached information. As project designer/engineer I believe that RH2 Engineering should be kept in the loop with the issues that we discovered in our 2-year coatings warranty inspection of the Hazen Reservoir. The primary issue is whether the stainless steel Tideflex WF-3 check valves are creating a corrosion cell with the carbon steel shell plates, which is causing pitting in the carbon steel shell plates. Coatings Unlimited and Tnemec appear to be positioning themselves for the possibility that we will discover more coating/corrosion issues when we conduct a 5-year warranty inspection and have pointed to the stainless steel check valves as a possible culprit. I have directed the maintenance crews to electrically isolate the check valves from the flanges on the outlet "T" pipe. This will act to break the corrosion cell if one currently exists. Please feel free to give me a call if you'd like more detail on how we are proceeding with this issue. Thanks, Thomas Malphrus, P. E. Clty of Renton 1055 S Grady Way Renton, WA 98057 425-430-7313 file://H:\File Sys\WTR -Drinking Water Utility\WTR-27 -Water Project Files\WTR-27-... 04/27/2011 Page 1 of 1 From: Jon Conner Uconner@rh2.com] Sent: Monday, April 04, 2011 2:00 PM To: Thomas H. Malphrus Subject: RE: Hazen Warranty Inspection Hi Tom —Yes, it looks like the shop drawings called for plated bolts (A307) instead of stainless steel at the pipe flanges. On the cable tray, the inside bolts are called out as stainless (connecting the cross struts to the channel supports) but the security nut is plated steel (A307) and the bolt that it screws to is just mild steel. I know that our specs say that any fastener must be equal or better to the material being fastened, so the flanges should have definitely had stainless bolts. Let me know if you need more info. If you'd like to ask TBI to replace, I can take a closer look at the specs. Thanks, Jon Conner, P.E. ( RH2 Engineering, Inc. 12100 NE 195th St, Ste 100 Bothell, WA 98011 P: 425.951.5352 C: 206.914.9536 www.rh2.com From: Thomas H. Malphrus fmailto:Tmalghrus@Rentonwa.govl Sent: Monday, April 04, 2011 11:55 AM To: Jon Conner Subject: Hazen Warranty Inspection Jon: Attached is a digital image which shows the outlet pipe and the corrosion of the nuts, bolts and washers on the outlet pipe flanges. I've also attached three pages from Shop Drawing Submittal 8.2 (for Division 13). Please help me determine if galvanized bolts washers and nuts were called out in the shop drawing submittal for: 1) Connectors to hold the shroud on to the cable tray. 2) Connectors to hold the flanges on to the outlet pipe. The flanges on the outlet pipe are stainless steel. Thanks, Thomas Malphrus, P. E. Clty of Renton 1055 S Grady Way Renton, WA 98057 425-430-7313 file://H:\File Sys\WTR -Drinking Water Utility\WTR-27 -Water Project Files\WTR-27-... 04/27/2011 Thomas H. Malphrus From: Thomas H. Malphrus Sent: Tuesday, April 19, 2011 9:41 AM To: 'Bonnie Wardlaw' Subject: Hazen Reservoir 2 year anniversary inspection Bonnie: Based on our inspection of the interior coating in the Hazen Reservoir, some parties have expressed concern that the stainless steel flanges on the Tideflex outlet valves have created a corrosion cell inside the reservoir which is contributing to the pitting which we observed on the interior of the reservoir shell plates. The City of Renton has decided to address this issue by electrically isolating the stainless steel flanges from the carbon steel flanges to which they are connected by installing bolt isolators on each bolt connecting the two flanges. On Friday we plan to test the flanges to ensure that they are electrically isolated from each other. Please contact me if you want to witness this test. I will be out of the office on Wednesday and Thursday. I will be back in the office at 7:00 am on Friday. Thank you, Thomas Malphrus, P. E. City of Renton 1055 S Grady Way Renton, WA 98057 425-430-7313 v i":.fi ne c.o J2otl '1 -1� C- c,1 c �-�� ; C.L � v -firms -� VP y 1 Thomas H. Malphrus From: mark ficca [accifmarcus@hotmail.com] Sent: Friday, April 08, 2011 8:02 PM To: Thomas H. Malphrus Subject: Hazen clarification Tom, I believe today at the tank site (inside) I made a statement or implied that I or Custom Coating Consultants performed the Low Voltage Holiday Detection. The information expressed was incorrect, if infact I stated that. I went thru the Technical Specifications later today following the site visit and verified that the specifications in section 9.11 - Inspection, paragraph #6 states the following: "Contractor shall inspect the completed coating on metal surfaces in the presence of the Owner for pinholes and holidays with a tinker and rasor or other low voltage (under 100 volts) holiday detector. Areas found to contain pinholes shall be repaired or recoated in accordance with the manufacturer's recommendations. Provide 72-hour notice to owner prior to performing test." I know it probably doesn't matter much, but we Custom Coating Consultants did witness the testing of the interior surfaces which was performed by Coatings Unlimited crews. My report will be forthcoming. Thanks again. Mark C. Ficca NACE Certified Coating Inspector Level III Custom Coating Consultants, LLC. http://customcoating_consultants.com ACC k J/a1t/615 0A 6 SIC,+- o sa f c,.t" c, r6 czA -lo o n S ficc, I r' � , I , p r e-s bw c-f c- RCt\. S (c.cJl Ge-or�c- S�k sal � A l 1 1 y �a-WA O M, ✓VI a l��\ r v S Thomas H. Malphrus From: Thomas H. Malphrus Sent: Monday, April 04, 2011 2:30 PM To: 'Bonnie Wardlaw' Subject: FYI - Hazen Coating Warranty Work to Begin Tuesday April 5 Bonnie: We will have the Hazen Reservoir opened up tomorrow, April 5, at 8:00 AM for Coatings Unlimited to begin fixing the corrosion issues that we discovered during our 2 year warranty inspection last Thursday. I already relayed this information to Roger Elton of Coatings Unlimited. Coatings Unlimited is free to begin the work ASAP. They will use the standard prepared by Torin Mowbray of Tnemec to fix the pitting and rusting on the floor and walls. Later today or tomorrow, I will send you a comprehensive list of items which need to be addressed. T Bailey is not required to be present during the work. Thomas Malphrus, P. E. Clty of Renton 1055 S Grady Way Renton, WA 98057 425-430-7313 Thomas H. Malphrus From: Thomas H. Malphrus Sent: Tuesday, April 19, 2011 9:41 AM To: 'Bonnie Wardlaw' Subject: Hazen Reservoir 2 year anniversary inspection Bonnie: Based on our inspection of the interior coating in the Hazen Reservoir, some parties have expressed concern that the stainless steel flanges on the Tideflex outlet valves have created a corrosion cell inside the reservoir which is contributing to the pitting which we observed on the interior of the reservoir shell plates. The City of Renton has decided to address this issue by electrically isolating the stainless steel flanges from the carbon steel flanges to which they are connected by installing bolt isolators on each bolt connecting the two flanges. On Friday we plan to test the flanges to ensure that they are electrically isolated from each other. Please contact me if you want to witness this test. I will be out of the office on Wednesday and Thursday. I will be back in the office at 7:00 am on Friday. Thank you, Thomas Malphrus, P. E. Clty of Renton 1055 S Grady Way Renton, WA 98057 425-430-7313 CUSTOM COATING CONSULTANTS, LLC P.O. Box 23789 * Federal Way, WA 98093 (253) 929-15950ffice * Fax (253) 929-1596 PROJECT INSPECTION REPORT Project Name: Hazen Reservoir Project No: 28009 Project Location: Renton Hazen High School / tank site Report No: 31 Specifying Authority: RH2 Engineering Painting Contractor: Coatings Unlimited General Contractor: T. Bailey, Inc. Date: 3/31/2011 1 Time: 0630-1030 Type of Inspection: PRE -START / INTERIM / PRE -FINAL / FINAL / 2 YEAR ANNIVERSARY INSPECTION Portion of Project: Exterior — Interior 2 year anniversary System(s) Inspected: Visual Environmental Conditions I Clear: Cloudy: X (mostly) Rain: X showers Snow: Time N/A N/A N/A N/A Air Temperature F Relative Humidity % Surface Temperature F Dew Point Material Temperature F INSPECTOR'S NARRATIVE: CCC was contacted by Mr. Thomas Malphrus, with the City of Renton to accompany the scheduled 2 year anniversary of the coatings application — Interior and Exterior to the Hazen Reservoir. Today onsite for the walk around was the following people: Mr. Thomas Malphrus — City of Renton Mr. Scott McConnell — Tnemec Sales Representative Mr. Michael Jackson — T-Bailey Mr. Roger Elton — Coatings Unlimited The exterior surfaces were viewed first and I noted the following defects needing correction. 1. Prepare and touch up under stairs near platform at exterior roof. 2. Remove overspray from metal grate at platform near roof hatch. 3. Prepare and touch up top of angle support under spiral stairs. 4. Prepare and touch up top of support at top of ladder. #1 #2 INTERIOR 1. Prepare and touch up sporadic pinholes/holidays weeping rust at viewed vertical welds and a few locations in the "field "of lower shell ring plates. 2. Prepare and touch up corrosion at weld viewed at transition weld joining floor and shell wall. 3. Locate, prepare and fill pits/voids in floor as per the Specification provided by Tnemec. 4. Prepare and touch up spot corrosion viewed at welds on floor. 5. Prepare and touch up ladder rungs at roof hatch 6. Prepare and touch up spot corrosion at interior platform near roof hatch. 111OWWWW #3 94 #2 #1 #1 #5 r L Ins ector: Mark Ficca Certification: NACE Certified Coating Inspector- Level 3 Reviewed by: Mark Ficca Certification: NACE Certified Coating Inspector- Level 3 y � , ' CUSTOM COATING CONSULTANTS, LLC P.O. Box 23789 * Federal Way, WA 98093 (253) 929-15950ffice * Fax (253) 929-1596 PROJECT INSPECTION REPORT Project Name: Hazen Reservoir Project No: 28009 Project Location: Renton Hazen High School / tank site Report No: 32W Specifying Authority: RH2 Engineering Painting Contractor: Coatings Unlimited General Contractor: T. Bailey, Inc. Date: 4/8/2011 1 Time: 1130 - 1530 Type of Inspection: PRE -START / INTERIM / PRE -FINAL / FINAL / 2 YEAR ANNIVERSARY INSPECTION Portion of Project: Exterior — Interior 2 year anniversary System(s) Inspected: Visual / DFT readings at spot repairs of interior applied touch up Environmental Conditions I Clear: Cloudy: X (mostly) Rain: Snow: Time N/A N/A N/A N/A Air Temperature F Relative Humidity % Surface Temperature F Dew Point Material Temperature F INSPECTOR'S NARRATIVE: CCC was contacted by Mr. Thomas Malphrus, with the City of Renton requesting a return visit to the Renton Hazen Reservoir to verify that the interior spot repairs that were identified in my revised report #31 had been successfully completed by Roger Elton of Coatings Unlimited. The exterior spot repairs will be performed at a later date when the outside weather conditions improve. Today onsite for the walk around were the following people including myself: Mr. Thomas Malphrus — City of Renton Mr. Andrew Weygandt — City of Renton Mr. Torin Mowbray — Tnemec Sales Representative Mr. Roger Elton — Coatings Unlimited I entered the tank and found the above noted people viewing the interior repairs. I used a properly calibrated Positector 6000, type II gage, serial #66024 to check the Dry Film Thickness of the spot repairs performed by Coatings Unlimited to correct previously noted repairs/defects to the coating system. The calculated average following random spot readings was 12.5 mils. This meets the originally specified minimum of 10.0 mils. Completed spot repairs on floor near South manway. Completed touch up of ladder rungs. ,N ,The interior defects/repairs have been completed and verified. Completed spot repairs near South manway. The exterior noted items still need repairs. 1. Prepare and touch up under stairs near platform at exterior roof. 2. Remove overspray from metal grate at platform near roof hatch. 3. Prepare and touch up top of angle support under spiral stairs. 4. Prepare and touch up top of support at top of ladder. Ins ector: Mark Ficca Certification: NACE Certified Coating Inspector- Level 3 Reviewed by: Mark Ficca Certification: NACE Certified Coating Inspector- Level 3 Thomas H. Malphrus From: Thomas H. Malphrus Sent: Tuesday, April 05, 2011 8:51 AM To: 'Bonnie Wardlaw' Subject: Warranty Repair - 2 year inspection Attachments: Repair Direction.pdf Bonnie: Please see the attached report from Custom Coatings Consultants which documents the items which were discovered during the two year warranty inspection and need to be repaired under warranty. Attached with the document is the repair specification supplied by Tnemec for fixing the pitting found on the reservoir interior surfaces. I will supply a copy of this report to Roger Elton of Coatings Unlimited. Thank you, Thomas Malphrus, P. E. Clty of Renton 1055 S Grady Way Renton, WA 98057 425-430-7313 1 CUSTOM COATING CONSULTANTS, LLC P.O. Box 23789 * Federal Way, WA 98093 (253) 929-15950ffice * Fax (253) 929-1596 PROJECT INSPECTION REPORT Project Name: Hazen Reservoir Project No: 28009 Project Location: Renton Hazen High School / tank site Report No: 31 Specifying Authority: RH2 Engineering Painting Contractor: Coatings Unlimited General Contractor: T. Bailey, Inc. Date: 3/31/2011 1 Time: 0630-1030 Type of Inspection: PRE -START / INTERIM / PRE -FINAL / FINAL / 2 YEAR ANNIVERSARY INSPECTION Portion of Project: Exterior — Interior 2 year anniversary System(s) Inspected: Visual Environmental Conditions I Clear: Cloudy: X (mostly) Rain: X showers Snow: Time N/A N/A N/A N/A Air Temperature F Relative Humidity % Surface Temperature F Dew Point Material Temperature F INSPECTOR'S NARRATIVE: CCC was contacted by Mr. Thomas Malphrus, with the City of Renton to accompany the scheduled 2 year anniversary of the coatings application — Interior and Exterior to the Hazen Reservoir. Today onsite for the walk around was the following people: Mr. Thomas Malphrus — City of Renton Mr. Scott McConnell — Tnemec Sales Representative Mr. Michael Jackson — T-Bailey Mr. Roger Elton — Coatings Unlimited The exterior surfaces were viewed first and I noted the following defects needing correction. 1. Prepare and touch up under stairs near platform at exterior roof. 2. Remove overspray from metal grate at platform near roof hatch. 3. Prepare and touch up top of angle support under spiral stairs. 4. Prepare and touch up top of support at top of ladder. I #2 INTERIOR Prepare and touch up sporadic pinholes/holidays weeping rust at viewed vertical welds and a few locations in the "field "of lower shell ring plates. Prepare and touch up corrosion at weld viewed at transition weld joining floor and shell wall. Locate, prepare and fill pits/voids in floor as per the Specification provided by Tnemec. Prepare and touch up spot corrosion viewed at welds on floor. Prepare and touch up ladder rungs at roof hatch Prepare and touch up spot corrosion at interior platform near roof hatch. #3 #4 2 #a #1 #1 #5 Ins ector: Mark Ficca Certification: NACE Certified CoatingInspector- Level 3 Reviewed by: Mark Ficca Certification: NACE Certified Coating Inspector- Level 3 TNW, IN(. NbEPEN6£NT 109rS£UMVE Of TNEkf£ (OVARY fN OV-0AT£D 7929 2N0 AVENUE SOUTH SEATTIE, WA 98108 1E1: 706-762.57SS FAX: 706.767-7588 WWW.TN1MF(.0061 April 4, 2011 Thomas Malphrus, P.E. City of Renton 1055 S. Grady Way Renton, WA 98055 Project: Hazen Tank, Floor Repair Procedure Subject: Tnemec Material Submittal Mr. Malphrus, Thank you for requesting a floor coating repair procedure. Please review the following information regarding the above project. Floor Coating Repair Procedure Surface preparation: SSPC SP-5 White Metal Cleaning Products: Primer- Tnemec Series 91-1-12O Hydro -Zinc Filler option- Tnemec Series 63-1500 Filler Surfacer Finish- Tnemec Series N140-15BL Pota-Pox Plus Application: Primer- 2.5 to 3.5 mils DFT Filler option- Fill flush to plane, if required. Finish- 12 mils DFT in two coats Please review attached product data and MSDS documents. If you have any questions please call. Cordially, Torin Mowbray Tnemec Regional Representative el Thomas H. Malphrus From: Thomas H. Malphrus Sent: Tuesday, April 12, 2011 10:28 AM To: Raymond Sled Cc: George Stahl; Abdoul Gafour Subject: Corrosion of Shell Plates at Hazen Reservoir Attachments: Electrical Isolation of WF-3 Check Valves.pdf Ray The coating contractor and coating manufacturer representative believe that the pitting we found on the Hazen Reservoir floor and wall plates is not normal for a 2-year old reservoir. Although the initial coating failure at each pit may have been due to a holiday in the coating or a coating preparation issue they believe that the loss of metal in each pit is due to a corrosion cell which has developed between the two stainless steel check valves on the outlet pipe and the carbon steel shell plates. I talked with Jerry Duppong of CH2M Hill and Jerry Weiser of Norton Corrosion and they both confirmed that this is a possible explanation for the pitting in the steel shell plates. In order to address this concern we need to electrically isolate the check valves from the "T" on which they are installed. Attached is a sketch which shows how we can isolate the check valves from the "T". We need to install non-conductive sleeves on each bolt, a non-conductive gasket between each check valve and the "T" and non-conductive washers under each nut and bolt head. After the bolts have been installed and tightened we need to insure that we do not have electrical continuity between the check valves and the "T". Not only will this electrically isolate the check valve and the "T" it will isolate each individual bolt as well. I noticed that the maintenance crew replaced several bolts on the bottom flange of the "T". These replacement bolts need to be isolated from the "T" in the same fashion as the bolts connecting the check valves to the "T". For your reference, I've attached the following: the data sheet for the Tideflex WF-3 check valve; the contractors submittal (engineer approved) for the Tideflex WF-3 check valve, and the shop drawing (engineer approved) for the 16- inch outlet piping. Please order the necessary parts and assemble the "T" and check valves as shown on my sketch. We will have to demonstrate to the painting contractor and coating representative that the check valves are electrically isolated from the "T" before we fill the reservoir with water. Please notify me when the work is completed and before the reservoir is filled so that I may set up this demonstration. Please be aware that the coating contractor and paint manufacturer representative are positioning themselves to defend against problems that we may find in the 5-year warranty inspection. It is important that we address their current concerns to prevent them from using them in their defense at the 5-year warranty inspection. I appreciate all the help that the maintenance crew has provided with this issue. Please feel free to call me if there is anything else that you need from me. Thank you, Thomas Malphrus, P. E. Clty of Renton 1055 S Grady Way Renton, WA 98057 425-430-7313 F->('Il * // WuS��-�/ lion- C©no�dc+�J� waSi.e-r nn - co �ducv:✓L I(oii - 3 TiUe��2X w r- 0 r) w a S�► T Sd L- PST ToN OF I(, - I nch STp�TN L ESS SAC- L L. TT-i� E T:.LP-X W f -3 G RT.:-r-K V IN L V F S FROM GA R T�o t-1 STE E L S R E L_ L p- A-T-E--S- Ff PtZFN R E5E- RVoz R -,JN4U t C,,') --v e- 13olt Sle�v� . `TU 4�; " 1 Sola-t`i o n h�tw �e.� Y;dt-(IC.)( 16-;riCAN FLOW y F. 3 S v b *%; j 'al For W42eN JZcSer yo Ir DISC SUPPORT RIBS 3.5" REF. 023.50" I—— 014.75" MEMBRANE —{ LIFTING EYE ITEM QTY. DESCRIPTION MAT'L 1 1 DISC 304 S/STEEL 2 1 SUPPORT ROD 304 S/STEEL 3 1 MEMBRANE NSF-61 EPDM CERTIFIED 4 3 BOLT WITH LOCKING NUT 304 S/STEEL NOTES: 1. VALVE IS TO BE MOUNTED WITH SUPPORT ROD IN THE VERTICAL POSITION. 2. PIPE I.D:IMUST BE SUPPLIED 3. FLANGE DRILLING: II \ REFERENCE: OUTLET CHECK VALVE it HAZEN 4.21MG STANDPIPE / III CITY OF RENTON, WA I I I I 016" ANSI 150# FLANGE DRILLING O OOOm000 I I (16) 1.121 DIA. THRU HOLES ON A Q1 � 021.25" BOLT CIRCLE \ \000001100000 0000000000/ / ♦ ,000 III 000 0 / i CUSTOMER APPROVAL SIGNED DAE SALES ORDER No:TXX—XXXX I ' i&qTex. 700 N. BELL AVE. T� CARNEGIE PA. 15106 info®tideflexxom 16" PIPE I.D. 0.63"--4-- SHOWN FOR REFERENCE ONLY CUSTOMER: H.D. SUPPLY ORDER No: Technologies 412.279.0044 PROPRIETARY NOTICE A Division of Red Valve Com an Inc_ fax 412.279.5410 S DOCUMENT CONTAINS PROPRIETARY INFORMATION OF TIDEFLEX TECHNOLOGIES. TT PRODUCT: 1 6" WF-3 WATERFLEX CHECK VALVE IS LOANED BY TIDEFLEX TECHNOLOGIES, SUBJECT TO THE CONDITIONS THAT IT 0 THE INFORMATION EMBODIEO THEREIN SHALL BE USED ONLY FOR RECORD AND TF PART No: WF3-1 60 —APPROVAL FERENCE PURPOSES. IT SHALL NOT BE USED OR CAUSED TO BE USED N ANY DR. BY: MVH DATE: 11-12-07 CHKD. BY: DATE: Y PREJUDICIAL TO THE INTERESTS OF TIDEFLEX TECHNOLOGIES. IT SHALL NOT REY REPRODUCED OR COPED N WHOLE OR PART, OR DISCLOSED TO ANYONE CAD SCALE: FULL NOUT THE DIRECT WRITTEN PERMISSION OF TIOEFLEX TECHNOLDCIES AND SHALL RETURNED UPON REQUEST. PLOT SCALE: .25 DWG No:TTS— Technologies Waterflex° WF-3—Full Face Style Check Valve Features & Benefits • High Backpressure Rating • Seals Drop -Tight Eliminating Backflow • No Springs or Packing Seals • light Weight • Non -slamming • Low Profile, Short Face to Face Materials of Construction • Disc: Carbon Steel, Stainless Steel, PVC (low pressure only) • Waterflex" Membrane: PGR, Neoprene, Buna-N, Hypalon-and NSF-61-Approved EPDM The wafer -style Series WF-3 is an entirely new check valve design specifically engineered for water applications. The all - new WF-3 provides very low headloss characteristics, with high backpressure ratings comparable to other valve styles such as lever and weight or spring -loaded disks. The WF-3 operates solely on line pressure and back pressure to open and close ... no outside energy source is required. As line pressure builds, the 100% elastomeric disc is folded away from the perforated plate, allowing water to pass. The "memo- ry" of the rubber will cause the disk to return flat, and back - pressure will seal the disk against the plate to prevent backflow. The WF-3 features a full -face flange and ANSI bolt drilling to 10 mate between two pipe flanges. 9 8 The Elastomer Waterflex® is more cost effective than other WWW 7 valve styles. Moving parts such as hinges and springs can seize w 6 if routine maintenance and lubrication is not performed. The o 5 WF-3 has no moving parts that require maintenance or repairs, 4 so operational costs are low and service life is long. The WF-3 3 also eliminates the need for machined metal parts, further 2 keeping costs down. 1 0 c Technical Data f Patent No. 76412514 Nominal ANSI Back Pressure Pipe Flange Outside ANSI Rating Size Size Diameter psi 4" 4" 9" 150 6" 6" 11" 150 8" 8" 13.5" 125 10" 10" 16" 100 12" 12" 19" 75 14" 14" 21" 75 16" 16" 23.5" 75 18" 18 25" 75 20" 20 27.5" 75 24" 24" 32" 50 30" 30" 38.75" 50 36" 36" 46" 50 42" 42" 53" 50 48" 48" 59.50" 50 Consult factory for higher larger sizes and working pressure. Headloss vs. Pipe Velocity 0 1 2 3 4 5 6 7 8 9 10 Pipe Velocity (FPS) Tideflex Technologies 9 700 N. Bell Ave., Carnegie, PA 15106 USA • 412-279-0044 • Fax 412-279-7878 9 www.tideflex.com g NOTED OTHERWISE FPO SIZES SHALL EQUAL THICKNESS of THINNER MEMBER JOINED. 2. SEE SHEET #1 FOR GENERAL NOTES 3. SEE SHEET #1 FOR COATING 4. HOLES ON FLANGE TO STRADDLE CENTERLINES. Shop Dirawl'ornStjbr+n, . +t%X f o r )+4aztA 19- iftch STUB UP 1'-10" TRIM TO V-4' AFTER TESTING 3/8 3/8 1/4 V —TANK BOTTOM INSIDE TANK SHELL 1'-6' HOLE IN BOTTOM ANNULAR PLATE F- 1'-4" H Vlt_W 2' N❑N-SHRINK GROUT E.L.-457.00' TOP OF TANK BOTTOM. 1'-0" PIPING BY OTHERS 3�16"�e ❑UTLET UNDERGR❑UND BILL OF MATERIALS #TO SHIP 801' ASSY DESCRIPTION SHIP MARK PCS MARK REMARKS MATEF 1 33A l6'0 OUTLET UNDERGROUND I a PIPE 16'0 X STD WT X 4'-t 5/8' A304 1 b ELL 16'0 STD WT LR 90• A304 1 c PIPE 16'0 X STD WT X 4'-5 5/8' A304 aNK F❑UNDATI❑N t =E DWG (18) FOR a PL 1/2 X I'-n 1/2' OD x 1'-4-4 t/a• ID A304 TAILS 1 e RING FLANGE 16'0 CLASS 'D' A304 I 33AB RING FLANGE 16.0 CLASS 'D' A304 1 33AC OUTLET PIPING REPAD 1 f PL 1/4 X 2'-9 1/2'0 x l'-4 1/8' 10 A36 t 33AD OUTLET PIPING TEE 3 e RING FLANGE 16'0 CLASS 'D' A36 PIPING BY OTHERS 2 s 1 PIPE 16.0 X STD WT X 0'-3' A53B 1 In STRAIGHT TEE 16'0 STD WT A234 3 33AE IBOLT KIT FOR 16.0 RING FLANGE PLATED A307 3 33AE GASKET 1/8- FOR 16-0 RING FLANGE W/HOLES R.R. 2 33AG 16-0 BLIND FLANGE A36 2'-7~ 1 1'-3 1/2" '-3 1/2' SEE NOTE #4 (h) FT TYP FOR ALL FLANGES (e) TYP -Co) TY�P > MAT F❑UNDATI❑N SEE DWG (18) FOR DETAILS —i 2'-4 3/4' 6'-6 5/16' WEIGHT U.S. Lbs T I cs v27108 REV'D LENGTH OF PC (c) AND REV'D VIEW'A' REV. BY DATE DESCRIPTION REVISIONS TOLFRANC S UNLESS OTHFRWSF NOTED, FRACTIONS: t 1/8" DEGREES: t2' OEGMAL: .X f.06• .XX *.03 .XXX t.010" AMT CERTIFIED 12441 BARTH❑L❑MEW RD ANAC❑RTES WA 98221 PH. 360 293 0682-FAX 360 293 3893 FABRICATOR WWW.TBAILEY.COM SCALE: N.T.S. PSF: 30 [®RAYM Br. KJM APPROVED BY: DATE: 10/17/07 ECKED BY: DRAWNG NO: 878-00-33 CUSTOMER: CITY OF RENTON, HAZEN RESERVOIR 80'-O" O X 115'-0" AWWA -ITLE: 16"O OUTLET UNDERGROUND SHFFT o:33 Thomas H. Malphrus From: Thomas H. Malphrus Sent: Wednesday, April 13, 2011 9:23 AM To: 'Mark Miller' Subject: 2-Year Warranty Inspection Attachments: Electrical Isolation Directions.pdf; Report 32W-Final-Renton Hazen Reservoir.doc; Report 31- Final-Renton Hazen Reservoir.doc Mark Please see the attached information. As project designer/engineer I believe that RH2 Engineering should be kept in the loop with the issues that we discovered in our 2-year coatings warranty inspection of the Hazen Reservoir. The primary issue is whether the stainless steel Tideflex WF-3 check valves are creating a corrosion cell with the carbon steel shell plates, which is causing pitting in the carbon steel shell plates. Coatings Unlimited and Tnemec appear to be positioning themselves for the possibility that we will discover more coating/corrosion issues when we conduct a 5-year warranty inspection and have pointed to the stainless steel check valves as a possible culprit. I have directed the maintenance crews to electrically isolate the check valves from the flanges on the outlet "T" pipe. This will act to break the corrosion cell if one currently exists. Please feel free to give me a call if you'd like more detail on how we are proceeding with this issue. Thanks, Thomas Malphrus, P. E. Clty of Renton 1055 S Grady Way Renton, WA 98057 425-430-7313 TNW, IN(. INDEPENDENT REPRESENTATIVE OF INEAIE( (OAIPANT INCORPORATED 7929 211D AVENUE SOUTH SEAITIE, WA 98109 TEL 206.762.5755 FAX: 206.767.7588 WWW.TNEAIE(.(OAI April 4, 2011 Thomas Malphrus, P.E. City of Renton 1055 S. Grady Way Renton, WA 98055 Project: Hazen Tank, Floor Repair Procedure Subject: Tnemec Material Submittal Mr. Malphrus, Thank you for requesting a floor coating repair procedure. Please review the following information regarding the above project. Floor Coating Repair Procedure Surface preparation: SSPC SP-5 White Metal Cleaning Products: Primer- Tnemec Series 91-H20 Hydro -Zinc Filler option- Tnemec Series 63-1500 Filler Surfacer Finish- Tnemec Series N140-15BL Pota-Pox Plus Application: Primer- 2.5 to 3.5 mils DFT Filler option- Fill flush to plane, if required. Finish- 12 mils DFT in two coats Please review attached product data and MSDS documents. If you have any questions please call. Cordially, Torin Mowbray Tnemec Regional Representative CUSTOM COATING CONSULTANTS, LLC P.O. Box 23789 * Federal Way, WA 98093 (253) 929-15950ffice * Fax (253) 929-1596 PROJECT INSPECTION REPORT Project Name: Hazen Reservoir Project No: 28009 Project Location: Renton Hazen High School / tank site Report No: 30 Specifying Authority: RH2 Engineering Painting Contractor: Coatings Unlimited General Contractor: T. Bailey, Inc. Date: Nov 21, 2008 1 Time: 0730-1300 Type of Inspection: PRE -START / INTERIM / PRE -FINAL / FINAL / NONCOMPLIANT Portion of Project: Exterior Coating System(s) Inspected: Modified SSPC-PA2 of exterior shell surfaces. Environmental Conditions Clear: I Cloudy: X mostly) Rain: Snow: Time 1125 hrs (outside) Air Temperature F 49 Relative Humidity % 57% Surface Temperature F 45 Dew Point 34 Material Temperature F N/A INSPECTOR'S NARRATIVE: CCC was contacted by Charlie Cook of Coatings Unlimited, requesting that CCC perform QA inspection of the exterior shell of the Renton Hazen Reservoir. Upon arrival, CCC used a properly calibrated Positector 6000, type II gage with a detachable probe to perform DFT testing in a "modified" format which included four individual drops from a Spider Basket. The testing also included DFT readings from around the base and readings taken from the shell in different locations from standing on the Spiral Staircase. Visually, the tank is nearing completion of the exterior coating system. CCC found areas along the Anchor clips and bolts with incomplete coverage and low DFT readings. CCC found one area on the exterior Vertical Stand Pipe that needed some touch up of the exterior coatings. The section was the third section up from the ground. CCC viewed areas of minor runs/sags in the coating system in different locations of the tank shell, and areas of embedded grit. CCC also viewed incomplete coverage at areas of the stair treads and supports, and other areas along the staircase and handrail. Incomplete coverage was also viewed on the domed roof in different locations of the skin plates and roof ladder assembly. Areas of the concrete pad were over sprayed with what appears to be either the intermediate / finish coats. CCC discussed with Charlie Cook the areas needing remedial work. Charlie acknowledged the areas and CCC requested that Coatings Unlimited contact us when the remedial work and touch up work is completed. Exterior view of Hazen Reservoir Overspray on concrete pad. Incomplete coverage on staircase Assembly. F Runs/sags near roof on exterior shell. -pa '- - Z�7i&L Incomplete coverage on domed roof plates. In regards to DFT testing of the exterior shell, CCC made four drops in the North, South, East, and West quadrants. CCC found all Quadrants sampled meeting the specified requirements for Dry Film Thickness, with exception of the Anchor Clips previously noted. Areas of the roof plates still had pieces of blue tape previously placed by CCC still indicating remedial work and additional touch up hadn't yet been performed. Overall, coverage and sheen looked consistent and complete on the shell. Inspector: Mark Ficca Certification: NACE Certified Coating'. Reviewed by: Gary Ficca Certification: NACE Certified Coatine Level 3 Level 3 2 Tidef t Technologies Waterflex°WF-3--Full Face Style Check Valve Features & Benefits • High Backpressure Rating • Seals Drop -Tight Eliminating Backflow • No Springs or Packing Seals • Light Weight • Non -slamming • Low Profile, Short Face to Face Materials of Construction • Disc: Carbon Steel, Stainless Steel, PVC (low pressure only) • Waterflex' Membrane: PGR, Neoprene, Buna-N, Hypalon` and NSF-61-Approved EPDM The wafer -style Series WF-3 is an entirely new check valve design specifically engineered for water applications. The all - new WF-3 provides very low headloss characteristics, with high backpressure ratings comparable to other valve styles such as lever and weight or spring -loaded disks. The WF-3 operates solely on line pressure and back pressure to open and close ... no outside energy source is required. As line pressure builds, the 100% elastomeric disc is folded away from the perforated plate, allowing water to pass. The "memo- ry" of the rubber will cause the disk to return flat, and back - pressure will seal the disk against the plate to prevent backflow. The WF-3 features a full -face flange and ANSI bolt drilling to 10 mate between two pipe flanges. 9 8 The Elastomer Waterflex® is more cost effective than other W 7 valve styles. Moving parts such as hinges and springs can seize 6 if routine maintenance and lubrication is not performed. The o 5 WF-3 has no moving parts that require maintenance or repairs, -c 4 so operational costs are low and service life is long. The WF-3 = 3 also eliminates the need for machined metal parts, further 2 1 keeping costs down. 0 r Technical Data Patent No. 76412514 Nominal ANSI Back Pressure Pipe Flange Outside ANSI Rating Size Size Diameter psi 4" 4" 9" 150 6" 6" 11" 150 8" 8" 13.5" 125 10" 10" 16" 100 12" 12" 19" 75 14" 14" 21 " 75 16" 16" 23.5" 75 18" 18 25" 75 20" 20 27.5" 75 24" 24" 32" 50 30" 30" 38.75" 50 36" 36" 46" 50 42" 42" 53" 50 48" 48" 59.50" 50 Consult factory for higher larger sizes and working pressure. Headloss vs. Pipe Velocity 0 1 2 3 4 5 6 7 8 9 10 Pipe Velocity (FPS) Tideflex Technologies 9 700 N. Bell Ave., Carnegie, PA 15106 USA • 412-279-0044 • Fax 412-279-7878 • www.tideflex.com UNLESS NOTED OTHERWISE 1. WELD SIZES SHALL EQUAL THICKNESS OF THINNER MEMBER JOINED. 2. SEE SHEET #1 FOR GENERAL NOTES 3. SEE SHEET #1 FOR COATING 4. HOLES ON FLANGE TO STRADDLE CENTERLINES. STUB UP V-10" TRIM TO 1'-4" AFTER TESTING 3/8 3/8 1/4 V -TANK BOTTOM INSIDE TANK SHELL 1'-6' HOLE IN -- BOTTOM ANNULAR PLATE r- V-4" H V1tW 2' NDN-SHRINK GROUT E.L.-457.00' TOP OF TANK BOTTOM. I /- PIPING BY OTHERS -,�„ 16"� OUTLET UNDERGROUND .Ian BILL OF MATERIALS #TO SHIP #OF ASSY DESCRIPTION REMARKS MATERIAL WEIGHT SHIP MARK PCS MARK U.S. Lbs 1 33A 16'0 OUTLET UNDERGROUND I a PIPE 16'0 X STD WT X 4'-1 5/8' A304 1 b ELL 16.0 STD WT LR 90' A304 1 c PIPE 16-0 X STD WT X 4'-5 5/8' A304 INK FOUNDATION I d I PL 1/2 X P-It 1/2' OD X V-4 1/9' ID A304 :E DWG (18) FOR :TAILS 1 e RING FLANGE 16'0 CLASS 'D' A304 1 33AB RING FLANGE 16'0 CLASS 'D' A304 1 133ACI OUTLET PIPING REPAD 1 F PL 1/4 X 2'-9 1/2'0 X Y-4 I/8' 10 A36 1 33AD JOUTLET PIPING TEE 3 e RING FLANGE 1610 CLASS 'D' A36 PIPING BY OTHERS 2 s PIPE 16'0 X STD VT X 0'-3' A53B I h STRAIGHT TEE l6'0 STD WT A234 3 33AE BOLT KIT FOR 16'0 RING FLANGE PLATED A307 3 33AF GASKET 1/8' FOR 16'0 RING FLANGE W/HOLES R.R. 2 33AG 16'0 BLIND FLANGE I A36 2'-7" -- 1'-3 1/2' l'-3 1/2' SEE NOTE #4 (h) <p4pp TYP FOR ALL FLANGES Ce> MAT F❑UNDATION SEE DWG (18) FOR DETAILS --^1 2'-4 3 / 4' 6'-6 5/16' 1 I TB 1/22/08 1 REV'D LENGTH OF PC c AND REV'D VIEW 'A' REV. ISY I DATE DESCRIPTION REVISIONS TOLERANCES. UNLESS OTHER*15E NOTED• FRACTIONS: t 1/8" pEGREE6: 32DECIMAL: .X f.06' .XX 3.03 .XXX t.010" CERTIFIED 12441 BARTH❑LOMEW RD ANAC❑RTES WA 98221 PH. 360 293 0682—FAX 360 293 3893 FABRICATOR WWW.TBAILEY.COM SCALE: N.T.S. I PSF: 30 1 DRAvm er, KJM JAPPROVED By., DATE: 10/17/07 1 CHECKEDBY- DRAWNG NO: 878-00-33 CUSTOMER, CITY OF RENTON, HAZEN RESERVOIR 80'-O"0X115'-O" AWWA ITLE: 16" 0 OUTLET UNDERGROUND CHFF-T 11: 33 L r" LESS NOTED OTHERWISE WELD SIZES SHALL EQUAL THICKNESS OF THINNER MEMBER JOINED. 2. 9EE SHEET #1 FOR GENERAL NOTES 3. SEE SHEET #1 FOR COATING 4. TEST FIT SMALL PARTS PRIOR TO FULL WELD OUT CONDUIT BY OTHERS E8A ­%00 ROOF ! I ROOF 2'-8 9/16" CABLE TRAY AND SUPPORT FRAME PLAN VIEW 8AC 8AC I (7) PLCS Lu (12) PLCS - -0 CD TO PC cn o a J I w f U C4 N 0 d � II cy o v 8AB (2) PLCS LiJ C'4 v INSIDE SHELL0 co N �? M 58AB I �, (6) PLCS II 4 3 4 3/4" 4" T / J TYP TYP1—t L� 1/4 GAP BETWEEN 5/2" } DOORS TYP 5'-7 1/2" i TYP 8AA \ JIL�LJ, N S CABLE TRAY SEE SHT <2> FOR ORIENTATION M 58B CABLE TRAY SEE SHT <2> FOR ORIENTATION 1/2" GAP BETWEEN DOOR AND GRATE t 1 VIEW 6" & 3" RMS CONDUIT BY OTHERS '" CA� OUTSIDE `END 6" SHELL 2 2'-5 1/4" DGDETAILS (2) AS SHOWN (2) OPP HAND BILL OF MATERIALS #TO SHIP SHIP MARK #OF PCS ASSY MARK DESCRIPTION REMARKS MATES 1 58A CABLE TRAY 1 58B CABLE TRAY 2 58AA LOWER CABLE TRAY ASSEMBLY 4 0 PL 1/4 X S -2 1/8" X 2'-11 3/4` 1 EMP/BREA A36 2 4 b c PL 1/4 X S-5 1/2" X X-2 3/16" HINGE BUYOUT 4" SS BUSHING (W/G.ZIRK) MP/BREA A36 SS 2 d RB 1/4"0 X 1'-0" FORM A36 2 e F8 1/4 X 3 X Y-5 1/2" A36 2 i F8 1/4 X 3 X 2'-i 3/16- M2E A36 4 r PL 1/4 X 0'-2" X 0'-3" WHOLE A36 4 s PL 1/4 X 0'-2" X 0'-2" TI MP/W/Ho E A36 14 58A6 CABLE TRAY ASSEMBLY r 2 -9 3/8' 3'-2 3/16" 2'-8 3/16" 56 9 C3 X 5.0# X 0'-2' A36 8 3 /4 " � _� 28 h RB 3/8"0 X i 1/4' THRO A36 BEND 6„ Pc (b) T 4-0. CDETAILS )((2) REQ'D {- 3'- d) ( �LOWER CABLE TRAY ASSEMBLY (2) REQ'D 14 j PL 1/4 X 2'-0' X 6'-0" A36 28 k C4 X 5.4/ X 5'-10 1/2" A36 28 m SECUTITY NUT 3/8" PLTO A307 28 n HINGE BUYOUT 4" BRASS BUSHING (W/G.ZERK) BRASS 56 p BOLT 3/8'0 X 3 1/2" (w/N&w) ss 28 t UNISTRUT 2 X 2 X 2'-0" A36 28 u 5/8"0 SPRING .K 1 1/4" A36 22 58AC UNISTRUT ASSEMBLY 44 44 9 C3 X 5.01 X 0'-2" A36 p BOLT 3/8 0 X 3 1/2 (W/N&W) PL TO A307 15.7' 22 1 UNISTRUT 2 X 2 X 2'-0' A36 �- 2'-1 3/16" ----� (DDE,TAILS (2REQ'D e) F VIEW 59 WEIGHT U.S. Lbs 3.03 Xxx t.010" WV EARW CERTIFIED , 1) mw" 12441 BARTHOLOMEW RD ANACORTES WA 98221 PH. 360 293 0682-FAX 360 293 3893 WWW.TBAILEY.COM FABRICATOR scAtE: N.T.S. PSF: 50 DRAWN BY: CS APPROVED BY; DATE' 11/02/07 CHECKED BY: DRAWING NO: 878-60-58 CUSTOMER: CITY OF RENTON, HAZEN RESERVOIR 80'-0"0 X 115'-0" AWWA TITLE: CABLE TRAY SHEET #: 58 19 19 19 19 19 19 19 19 7 19 19 7 19 19 19 19 19 19 sr S NOTED OTHERWISE E' D S . IZ ES SHALL EQUAL THICKNESS OF THINNER MEMBER JOINED. 2. SEE SHEET #1 FOR GENERAL NOTES 3. SEY SHEET #1 FOR COATING 2'-0" 0) (t) UNISTRUT (j) (TYP) (a)VIEW B (k) (J) -i t TYP f \ I I 1 1/2"-I (9) TYP TYP �sZ ZA o CABLE TRAY ASSEMBLY J V /-�U (14) REQ'D 3" TT 3/4" I a — IN L 1 /2"0 HOLE TYP r DETAILS (4) REQ'D (u) SPRING (m) (h) PLACE 6" FROM TOP AND 6" FROM BOTTOM 2» y 3/4" T IN t --\ 1 /2"0 HOLE 1 5/1,6" f IT TYP (,.,:),DETA ILS REQ'D r- 2'-0 3'-6" 0 NOT 'ELD PC (a) D PC (b) (a) (r) D VIEW 58 (t) Li!Q (P) e UNISTRUT ASSEMBLY (22) REQ'D IrOB REV'D CABLE TRAY DETAILS DATE DESCRIPTION - - - - ncw: a ut(.1MAU .X 3.08' XX 3 03 XXX t O1C R CERTIFIED I d4 m— W-- mw'f 12441 BARTHOLOMEW RD ANACORTES WA 98221 is PH. 360 293 0682-FAX 360 293 3893 WWW.TBAILEY.COM FABRICATOR scALE: N.T.S. PsF: 15 DRAWN BY: CS APPROVED BY: DATE: 11/02/07 1CHECKED BY.- DRAWING NO: 878 O 059 CUSTOMER: CITY OF RENTON, HAZEN RESERVIOR 80'-0"0 X 115'-0" AWWA TITLE: CABLE TRAY DETAILS SHEET #: 59 FROM :WATER MANAGEMENT LABS 1515 80TH STREET E TACOMA, WA 98404 (253) 531-3121 WATER BACTERIOLOGICAL FAX NO. :253-531-5297 . 1 AN,;! PSIS SAMPLE COLLECTION, (II1Af1 INSTRUCTIONS ON RAV (IF GOLDENIOD GOFY If instructions are not followed, sample will be rebooted. � l t(`OI ESGi i'';5:,';. IIJVIF.�t%OLLEC�FID COUN-F�' NAME ' i)AY v�G V ❑ AM PM7.nci nV TYPE OF SYSTFM PUBLIC INDIVIDUAL (�3rvan only t ((WdenI IAMI= OF SYSTEM IF PUBLIC SYSTEM. COMPLLTE: } GFU GR(XR 4 city of Renton IPEOFIC WCATk)N WHERE SAIAPI.f. COLLECTED TELEPHONE NO. w, han tap v4 scltuul, lire rarbn. Imrntninl DAB, (4 2 5 , 13 0 —7 4 0 0 EVENING 025 : 22.8-1902 SAMPLE COI..I.ECTED BY: (Narne) SYSTEM OWNER r 1,AGR.: (Narne) F �2,L A Ray Stec. SOURCE, ❑ GROUND WAfEfi UNDER SURFACE INFI-L.1- CE I ❑ GUNFA(.E ❑ WELL or SPRING ❑ PURCHAS:11) or CC:OMBINARON WELL FIELD INTERTIE r OTFIER SEND REPORT 1Zk (Nnt Full Nwm, Andreas and Zip Crtde) City of Renton, Wader Dept 355.5 Northea3t 2nd Str?At ` i w. outs �r Tnar •,,�;.a;��•, `�'�fie.i�r;ls •.0I9��.,5 4'i�fF4 .} al9son ,I ;:;}I METHOD USED MF I MON I PA CPRG DRINKING WATER GAMPLL RESULIA UNSATISF , Coliforms present SATISFAG � l:nllfnrms ah9unI REPEAT [� E. Cols parent ❑ F. CAA bhnont ��AMf'LES REQUIRED ❑ Fucal present ❑ Fens absent SEE RrVL-.NSE SIDE OF GREEN COPY FOR EXPLANATION OF REST II,TS fJrT t1.AC7fiTEU �JJTE ACC7, yi May. 02 2011 10:36AM P2 1515 BOTH STREET E TACOMA, WA 41fAOI (253) 531-31211 WATER BACTERIOLOGICAL ANALYSIS SAMFI.0 %LI.E(:Ti(NJ: READ IN TRUCTIONS DN BACK OF Wl ')I NR(1D COPY If Instructions are not followed, sample will be rejected C,s,- COLLE TED ` Mj�q°1CGLLE0 COUNTY NAME NTI f DAY ! V King . ❑ AM I'M TYPE OF :3Y:1'f_M IF PUBLIC SYSTEM, COMPLETE: ® PUHL.K' CIRCLE Fi(»IF ❑INDIVIDUAL (A) A :.. I m.-:Rfence servos Only 1 NAME OF SYSTEM city of Renton sPEaric LDCATION WHERE SAMPLE 00D.F.CTF0 _-TELEPHONE NO. pa, lei -an Inn, as anhouL fir._• ^­i.ot, tt+urttslnl DAY (4 2 5) 4 3 0 — 7 4 0 0 EVENING(425 ) 228-1902 SA�rtPl. E t:OLLECTED BY: (Nar* SY STEM OWNER/ MQR.: (Name) — (O�I Ray Sled do fq ROURCE GROUND WATER UNDER SURFACE INFLUENCE ❑ SURFACE ❑ WELLor ❑ SPRING PURCHASED or KCOMBINAnC WELL FIELD INTERTIE x (.YI'HER SEND REPORT TO: (Print Full Name Addreas and Zip Code) City of Renton, Wa er Dept 35.55 Northers!;t. 2nd Street Rent On � wec}•uw:mt� MI_THn") USED+ MF I MPN I PA I /'M&_Rk I CPRG DRINKING WATER SAMIi..E nE9ULTS I:olHorma ahaatil REPEAT E. Coli txeeent ❑ P. r� ll ahawnl SAMPLES REQUIRED ❑ Few[ Dreapnt ❑ Fec►d absent SEE REVERSE 510E OF GREEN COPY FOrt EXPLANATION OF RESULTS ' �q`Si � '�` }I py N ���.._ •�'�Ct,.,.E:tE1��Q���; ''�,;iy� :;.Fi�EM�j„�,., wnT �. 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