===== PDF PAGE 20 ===== [Extraction: embedded PDF text] CITY OF WEST CHICAGO INFRASTRUCTURE COMMITTEE AGENDA ITEM SUMMARY ITEM TITLE: AGENDA ITEM NUMBER: Lf-, C ' Resolution No. 21-R-0014 - Contract Award - KLM Engineering, Inc. - Professional Engineering Services COMMITTEE AGENDA DATE: March 4, 2021 Related to the 2021 Booster Station #4 Ground Storage COUNCIL AGENDA DATE: March 15, 2021 Tank Rehabilitation Project STAFF REVIEW: Robert E. Flatter, P.E., Director of Public Works APPROVED BY CITY ADMINISTRATOR: Michael L. Guttman ITEM SUMMARY: Within the Fiscal Year 2021 Water Fund budget, $800,000.00 has been budgeted for the rehabilitation of the 500,000 gallon ground storage tank associated with Booster Station #4, located at 320 E. Forest Avenue (southwest corner of Bishop Street and Forest Avenue). Booster Station #4 and the associated ground storage tank, is one of two Booster Stations and ground storage tanks used to increase available water in the distribution system during peak demand periods. This is accomplished by the operation of pumps within the Booster Station to draw water from the ground storage tank and discharging said water into the distribution system. As more water is needed, the overall pressure drops in the distribution system. When pressure drops below a desired level, a signal is received at the station calling for pumps to run and "boost" the system pressure. Improvements were last completed at Booster Station #4 in 2019, which included replacement of pumps, piping and electrical gear directly associated with the Booster Station's operations. In 2019, the City also hired KLM Engineering, Inc. (KLM) of Woodbury, Minnesota, to clean sediment from within the Booster Station #4 ground storage tank, evaluate the condition of said tank, and draft an inspection report. This ground storage tank was originally constructed in 1959. KLM's inspection report (attached) identified that after more than 61 years of service life, significant rehabilitation of this structure is required. Required improvements include, but are not limited to, the following: • Replacement of the tank's roof. The current roof is in unrepairable condition. • Sandblast and repaint of the tank's exterior. • Removal of obsolete equipment from within the interior of the tank (i.e., Cathodic Protection System, ladder safety climb device, wood plank baffle wall, etc.). • Sandblast and repainting of the tank's interior. • Installation of a mixing system inside the tank to improve water quality (replacement for obsolete wood plank baffle wall). • Installation of OSHA approved safety features. Estimate cost of required improvements range between $625,000.00 and $735,000.00. Competitive bids will be sought for construction once engineering design plans, specifications, and bid documents are finalized. Being most familiar with the condition of the storage tank and repairs needed, City staff asked KLM for a ===== PDF PAGE 21 ===== [Extraction: embedded PDF text] CITY OF WEST CHICAGO proposal to provide professional engineering services related to the 2021 Booster Station #4 Ground Storage Tank Rehabilitation Project. Services will include, but not be limited to, development of design plans, development of project specifications, development of bid documents, providing assistance during the bidding process, and construction oversight services. KLM submitted a cost proposal of $58, 122.00. Therefore, it is staff's recommendation that a contract be awarded to KLM Engineering, Inc. of Woodbury, Minnesota, for professional engineering services related to the 2021 Booster Station #4 Ground Storage Tank Rehabilitation Project, for an amount not to exceed $58, 122.00. ACTIONS PROPOSED: Approve Resolution No. 21-R-0014 authorizing the Mayor to execute a Contract with KLM Engineering, Inc. of Woodbury, Minnesota, for professional engineering services related to the 2021 Booster Station #4 Ground Storage Tank Rehabilitation Project, for an amount not to exceed $58, 122.00. COMMITTEE RECOMMENDATION: ===== PDF PAGE 22 ===== [Extraction: embedded PDF text] RESOLUTION NO. 21-R-0014 A RESOLUTION AUTHORIZING THE MAYOR TO EXECUTE A CONTRACT AGREEMENT WITH KLM ENGINEERING, INC. FOR PROFESSIONAL ENGINEERING SERVICES RELATED TO THE 2021 BOOSTER STATION #4 GROUND STORAGE TANK REHABILITATION PROJECT BE IT RESOLVED by the City Council of the City of West Chicago, in regular session assembled, that the Mayor is hereby authorized to execute a Contract Agreement for Professional Engineering Services related to the 2021 Booster Station #4 Ground Storage Tank Rehabilitation Project, between the City of West Chicago and KLM Engineering, Inc., for an amount not to exceed $58,122.00, in substantially the form attached hereto and incorporated herein as Exhibit "A". APPROVED this 15th day of March 2021. AYES: NAYES: ABSTAIN: ABSENT: Mayor Ruben Pineda ATTEST: City Clerk Nancy M. Smith ===== PDF PAGE 23 ===== [Extraction: embedded PDF text] - - - - I ' : I I CITY OF WEST CHICAGO, ILLINOIS 500,000 Gallon Capacity Booster Number 4 Reservoir Ground Storage Reservoir Inspection Report KLM Project 1976 Wooddale Drive. Suite 4 I Woodbury, MN 55125 MN3924 (651) 773-5111 I Fax (651) 773-5222 ===== PDF PAGE 24 ===== [Extraction: visually verified transcription of rendered page] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Table of Contents 1.0|PROJECT INFORMATION 2 2.0|EXECUTIVE SUMMARY 3 2.1|Structural Examination Summary 3 2.2|Coating Evaluation Summary 3 2.3|Repair and Reconditioning Cost Estimate 4 2.4|Remaining Tank Life 4 3.0|RECOMMENDATIONS 4 3.1|Interior Structural 5 3.2|Interior Wet Coating 6 3.3|Cathodic Protection System (C.P.) 6 3.4|Exterior Structural 6 3.5|Exterior Coating 7 3.6|Site and Environmental Considerations 7 3.7|Telecommunications Considerations 7 4.0|REPAIR AND RECONDITIONING OVERVIEW 7 APPENDIX A: Photographs APPENDIX B: Drawings APPENDIX C: Surface Preparation Requirement APPENDIX D: Inspection and Evaluation Methods APPENDIX E: Paint Chip Lead and Chromium Test Results ===== PDF PAGE 25 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS 1.0IPROJECT INFORMATION KLM Project No.: ~~~~~~~~~~~~-MN3924 Customer P. 0. Number: -~~~~~~~~N/A Customer: City of West Chicago, IL Phone: 630-293-2255 Street/City/State/Zip: 1400 Hawthorne Lane west Chicago, IL 60185 Customer Contact: Rocky Horvath, Water Utility Supervisor Tank Owner: City of West Chicago, IL Phone: 630-768-8875 (cell) Tank Owner Contact: Rocky Horvath, Water Utility Supervisor Owner's Tank Designation: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~Booster Number 4 Reservoir Tank Description: Ground Storage Reservoir Tank Street Location: East Forest Avenue & Bishop Street, West Chicago, IL 60185 Purpose of Inspection: Dry tank examination and interior & exterior coating evaluation Date of Inspection: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-May 15, 2019 1n spec t e d By: Devin Severson, NACE #78234 & Tim Lindsay Type of Inspection: KLM Standard Dry Tank Inspection Procedures Manufacturer: ~~~~~~~~~~~~~~~-Graver Construction Date: -~~~~~~~~1959 Serial No.: 51414 Design Code: AWWA D100-55 Capacity: 500,000 Gallons Type of Construction: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Welded Number and Size of Columns or Pilasters: ~~~~~~~~~~~~~~~~~~~~~~None Tank Diameter: 52-feet Height: Overall 45-feet Height to: HWL 30-feet LWL Grade Type of Access to Tank Interior: Shell manway(s) and exterior ladder to roof manway Tank Construction Drawings: ~~~~~~~~~~~~~~~~~~~~~~~~~~-None Available Previous Inspection Records: ~~~~~~~~~~~~~~~~~~~~~~~~~~-Liquid Engineering Reports EXISTING COATING INFORMATION Interior Wet Exterior Date Last Coated Circa 1993 Circa 1993 Full or Spot Repair Full Full Coating Contractor Unknown Unknown Surface Preparation Unknown Unknown Paint System Epoxy Epoxy/Urethane Paint Manufacturer Unknown Unknown Lab Lead Test Paint Chips Taken Taken __ _f:f Copyright 2019 by KLM Engineering, Inc. Page 2 ===== PDF PAGE 26 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS CITY OF WEST CHICAGO, ILLINOIS 500,000 GALLON CAPACITY BOOSTER NUMBER 4 RESERVOIR 2.0IEXECUTIVE SUMMARY 11 t ' t ; Based on the inspection data, it appears that extensive miscellaneous structural modifications and repairs are required. These modifications and repairs serve to bring the tank into compliance with OSHA regulations, AWWA standards, as well as allow for better coating bonding, allow for safer access in and on the tank, and, in some cases, removing unnecessary items. The roof of the Booster No. 4 reservoir is in unrepairable condition. Although, it does not appear that the roof is caving in at the time of the evaluation, there is evidence of the interior of the roof plate edges deteriorating with severe corrosion. The evaluation was performed in May with good weather conditions, winter weather conditions and snow loads are unpredictable which may create considerable deflections. If left unattended the roof will continue to deteriorate depositing corrosion into water and when through corrosion occurs, contaminants can enter into the water and be in violation of AWWA and health department standards. Currently corrosion has not visually appeared to affect the structural integrity of the roof. Although, corrosion has begun to migrate from the plate edges into base metal. If the corrosion is allowed to progress, it will diminish the structural strength of the roof. KLM does not have a history of the roof condition; therefore, a reasonable life prediction cannot be made at this time if no action is taken. The critical time for the walls is when the reservoir is partially full, then the roof provides lateral support of the walls under wind and unbalanced snow loads and keeps the walls (shell) round. If there is loss of the structural strength of the roof, the walls are subject to collapse. The existing roof is not effectively repairable, replacing the entire roof and structure with a new steel roof (coated) is estimated at $300,000 at current costs. As an option, the City of West Chicago may entertain replacing the steel roof with an aluminum geodesic domed roof for approximately $375,000. An aluminum geodesic domed roof would require minimal maintenance over the life expectancy of the reservoir whereas reconditioning the interior and exterior of a steel roof can cost around $100,000 every 25+- years. See photos 2 through 8. A new roof shall include one (1) pressure pallet vent, three (3) ventilation manways and a pipe style, OSHA compliant handrail to encompass the center finial vent and access manway. 2.2jCoating Ev. tuati n $111 m 11y 2.2.1 ILead and Chromium Content Analysis The total lead and chromium content of the interior and exterior coatings was analyzed. The results in Appendix E show a 0.0029 to 0.022 percent lead content for the interior wet coating and a 0.077 to 0.24 percent lead content for the exterior coating. Current State regulations classify neither the interior nor exterior coatings as lead-based paints. Chromium levels in the test samples indicate levels from Below Recording Limits (•' I 'I I q T l I • I Based on the inspection data, if the recommended structural repairs and coating replacement are completed within the next 12 months, the tank will be satisfactory for continued service provided that it is inspected regularly. The tank and coating should first be inspected within the warranty period and every three (3) to five (5) years thereafter. A new interior and exterior coating, if applied and maintained properly, should last 15 to 20 years. 3.0IRECOMMENDATIONS The photographs referred to in this section are in Appendix A. All drawings are found in Appendix B. The surface preparation requirements for all repairs as well as the requirements for welding are described in Appendix C. The exterior and interior paint chip lead tests are in Appendix E. Copyright 2019 by KLM Engineering, Inc. Page4 ===== PDF PAGE 28 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Based on an evaluation of the inspection data, the following are our recommendations: 3.1!1ntcrror Stru tural 3.1.1 Remove the inspection platform and fill pipe de-fuser platform under the center of the roof. See photos 2, 7, and 9 through 11. 3.1.2 Remove the fill pipe down to a point approximately three (3) feet above floor level. Install a brace connecting the pipe to the floor at the 90-degree connection of the pipe. See photos 10 through 12. a. Diffuser inlets are typically installed to "aerate" water supply during the fill process to oxygenate water and allow iron to separate and settle to the floor. With a treatment plant, diffusers are normally not required. The existing supports for the platform are corroded beyond repair. Due to reoccurring maintenance costs, cost of replacing the support system and the fact that aeration only occurs while the reservoir is filling, repairing the existing fill pipe system and inspection platform is not recommended. 3.1.3 Remove the wood plank baffle wall and all connection points. Grind smooth all attachment points to the wall and floor per Appendix C. Typically baffle walls are installed to direct even distribution of sediment. It is not required with proper mixing systems and scheduled cleanout inspections. See photos 12 through 15. 3.1.4 Remove the Cathodic Protection System in its entirety including the housing around the shell penetration and wall clips. Repair the resulting hole in the shell per AWWA D100-11. See photos 23, 26 and 37. 3.1.5 Remove the ladder safety climb device. Install an anchor point and Self Retracting Lifeline (SRL) on the underside of the roof adjacent to the access manway for safe egress into the reservoir. See photos 17 and 18 and KLM Drawing No. 26. 3.1.6 Remove approximately 4-inches off the top of the overflow weir box to comply with AWWA D100- 11 and State Health Codes. See photo 8. 3.1. 7 Remove all erection brackets scab marks and weld spatter below the HWL by air arc gouging, cutting torch, or grinding. Repair the tank surface by welding and grinding outlined in Appendix C. See photos 20 through 22. This will work will require approximately 75 man-hours. 3.1.8 Replace the top ten ( 10) feet of ladder and ladder stand-off brackets at the top of the shell. See photo 17. 3.1.9 Install a 12-inch tall removable silt stop to the top of the outlet pipe with welded flat bar tabs to keep it in place. Install two bars on top of the new silt stop. The silt stop will help keep sediment from entering the water stream and the bars will hinder the entry of miscellaneous material and provide a safety measure. See photo 25. 3.1.10 Install a Grid-Bee GS-12 Submersible Mixer (or equivalent) in the reservoir to provide mixing capabilities that reduce the likelihood and magnitude of ice formation in cold weather and prevent stratification in warm weather, improving water quality and reducing the necessity of chemical additives such as chlorine. Refer to KLM Drawing 58. The costs of a GridBee GS-12 installed is approximately $18,000. The cost for a GridBee GS-9 mixer is included in the cost estimates in Section 2.3. As an option, install Tideflex (or equivalent) fill pipe system. The cost to install a Tideflex system is approximately $38,000. Copyright 2019 by KLM Engineering, Inc. Page 5 ===== PDF PAGE 29 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS ' I ' 'I 3.2.1 The interior wet coating is in poor condition above the High-Water Line (HWL) with approximately 50 percent visible coating failures including severe corrosion at each lap plate seam. The roof has structurally deteriorated beyond the point of repair. Due to deterioration, condition and non-compliance with AWWA and State Health Codes the roof should be replaced with an aluminum geodesic dome style roof within the next 12 months to ensure continued use of the reservoir as designed. The coating below the HWL is in poor overall condition with approximately 50 percent visible coating failures consisting of widespread rust nodules and solvent entrapment blisters. Due to condition the coating below the HWL is not repairable and should be replaced in its entirety at the same time as installation of the geodesic dome roof within 12 months. See photos 2 through 26. 3.2.2 After structural repairs are completed, all the reservoir surfaces should be abrasive blasted to an SSPC-SP-10 Near White Metal Blast and coated with a light-colored zinc/polyamide epoxy system (similar to the Tnemec Series 91-H20 Hydro-Zinc/Series N140 Pota-Pox Plus Epoxy coatings) . . 10 ·1 • I "II I I \ 3.3.1 The submerged style Cathodic Protection System is recommended to be removed in its entirety per Item 3.1.5 above. Current coating conditions suggests that the Cathodic Protection System is not working correctly. 3.3.2 A cathodic protection system is not required if the coating is applied and maintained properly. 3.6 ' v t' t rt . 3.4.1 Relocate the exterior shell ladder approximately three (3) feet either side of its existing location. The ladder is currently aligned with the roof access manway creating unsafe access into the wet area. This item may not be required if the manway on the new geodesic dome roof is located See photos 31 and 32. 3.4.2 Replace the two (2) shell manway gaskets. See photos 34 and 36. 3.4.3 Replace missing Flexcell under the base plate of the reservoir. Epoxy caulk around the entire perimeter of the seam between the concrete and base plate using Sika-Flex 1-A or approved equal. See photos 36 through 39. 3.4.4 Remove the name plate for purposed of blasting and painting the shell on the back side of the plate. Reinstall the name plate after coating application. See photo 35. 3.4.5 Replace the flat track safety climb device on the shell ladder with an OSHA compliant cable style safety climb device. See photo 32 and KLM Drawing No. 24 3.4.6 Install a splash pad under the overflow discharge to allow for drainage away from the base of the reservoir per AWWA D100-11 requirements. See photos 38 and 39. 3.4.7 Install a sump pump including electrical connections required for proper operation in the valve pit. The discharge shall be routed through the roof of the valve pit and directed away from the base of the reservoir. See photos 41 and 42. Copyright 2019 by KLM Engineering, Inc. Page 6 ===== PDF PAGE 30 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS ·e: - 11 3.5.1 The exterior coating is in poor overall condition with more than 50 percent visible coating failures throughout the structure. Failures consist of rust nodules caused by deterioration of the topcoat exposing the underlying epoxy to UV conditions. Due to age and condition the exterior is not a candidate for spot repair or over-coating and should be replaced in its entirety at the same time as the interior coating within the next 12 months. This includes the piping in the valve pit. See photos 27 through 41. 3.5.2 After structural repairs are completed, all the reservoir surfaces should be abrasive blasted to an SSPC-SP-6 Commercial Blast Clean and coated with a zinc/epoxy/urethane/fluoropolymer system (similar to the Tnemec Series 91-H20 Hydro-Zinc/Series N140 Pota-Pox Plus Epoxy/Series 73 Endurashield/Series 701 Hydroflon coatings). nvi n ~J I rj '" I t. 3.6.1 The reservoir is located inside a 75-foot by 225-foot chain link fenced area with close proximity to the fence on the east side adjacent to a sidewalk and Bishop Street. West Chicago City Guidelines will need to be followed for closing the adjacent sidewalk. 3.6.2 In conformance with Illinois State Regulations, an analysis has been performed to determine the methods of pollution control required for this storage structure during reconditioning. To maintain air quality and to prevent the drift of dust and fugitive emissions, full containment will be required, including impervious ground cover, a top cover or bonnet and negative air dust collection . . 7 · , , m t . , t · o · ~ :; o ·1 ' :: e r 6. 7 .1 The reservoir has no telecommunications equipment, either antennas or other associated equipment. Antennas generally have the effect of dramatically increasing the cost of reconditioning water storage reservoirs. If the owner is considering allowing antennas to be installed on the tower/reservoir, lease agreements should be written to ensure the antenna owners are responsible for increase maintenance costs due to their presence. Installations should be reviewed to ensure that they do not interfere with normal use or maintenance of the tower, present safety hazards, or violate state or federal regulations. 4.0IREPAIRAND RECONDITIONING OVERVIEW KLM recommends repairs be completed within the next 12 months. An experienced tank-coating contractor with the proper crew and equipment should be able to complete the project in ten (10) weeks. KLM ENGINEERING, INC. Report prepared by: Report reviewed and certified by: h-~~ Rodney Ellis Jerry J. Tell, P.E. Vice PresidenUCOO Manager of Engineering NACE Certified Coatings Inspector No. 1686 MN License No. 15524 APl/CWI 04040311 Copyright 2019 by KLM Engineering, Incorporated. All rights reserved. This material may not be duplicated reproduced, displayed, modified or distributed without the prior express written permission of KLM Engineering, Incorporated. P:\201912019 Evaluations And Photos\West Chicago, IL MN3924 Forest Avenue GSR\Support Docs\West Chicago, IL MN3924 Report Final Revised.Docx Copyright 2019 by KLM Engineering, Inc. Page 7 ===== PDF PAGE 31 ===== [Extraction: OCR (rendered-page OCR)] APPENDIX A PHOTOGRAPHS ===== PDF PAGE 32 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 1 Overall view of reservoir Photo No. 2 Overall roof condition, note center fill de-fuser and inspection platform '11'.711'~ ' .;7..- :!-.:...:' Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 33 ===== [Extraction: OCR (rendered-page OCR)] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 3 Roof condition Photo No. 4 Roof condition KN) Engtnnwelny be Sexemeet Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 34 ===== [Extraction: OCR (rendered-page OCR)] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 5 Severe corrosion on roof plates Photo No. 6 Severe corrosion on roof plates KIM Conlmanctiey tons suewncar Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 35 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 7 Severe corrosion on inspection platform brace and dollar plate Photo No. 8 Overflow weir box and roof/shell condition Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 36 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 9 Fill pipe and de-fuser plate J I' / / /. Photo No. 10 Underside of fill pipe and de-fuser plate adjacent to inspection platform Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 37 ===== [Extraction: OCR (rendered-page OCR)] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 11 Fill pipe and baffle wall Photo No. 12 Fill pipe and baffle wall KS Engin sasing Ine semen = Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 38 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 13 Wood plank baffle wall Photo No.14 Baffle wall connection to reservoir shell ~ ,~_.:::2;'' Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 39 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 15 Baffle wall connection to roof Photo No.16 Roof to shell connection and conditions £/•Nl.·•,_t,,-J~•.f·... '"""'"""'"""""(.-.,<;_ Copyright 2019 by KLM Engineering, Inc . ===== PDF PAGE 40 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 17 Ladder condition at top of shell Photo No. 18 Overall condition of shell ~ ' .J!:_ .;;,.!' Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 41 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 19 Shell condition, note C.P. system Photo No. 20 Shell coating condition, note blisters and erection scab marks Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 42 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 21 Erection scab marks and blistered coating on shell Photo No. 22 Erection scab marks and blistered coating on shell Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 43 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 23 C.P. penetration on shell and floor conditions Photo No. 24 Floor conditions and inlet pipe Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 44 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 25 Floor conditions, note sump pit and shell manway --- Photo No. 26 C.P. system and floor conditions Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 45 ===== [Extraction: OCR (rendered-page OCR)] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 27 Non-compliant finial vent and roof conditions ’ *. : kr > one pantie Pa atta «3 thy. . Photo No. 28 Overall roof conditions oe Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 46 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS ..,.. ' ... ' .: ; . I .. f .. Photo No. 29 Roof conditions .. .. . ' . .. . . . .·· ~ kz : •• ~ , ......._ - !JI ,,. • 0 . .·• . . ' .. --·. Photo No. 30 Roof conditions Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 47 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 31 Note shell ladder location in reference to roof access manway Photo No. 32 Shell ladder and coating conditions Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 48 ===== [Extraction: OCR (rendered-page OCR)] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS Photo No. 33 Shell coating condition Photo No. 34 Shell manway prewee yy Erotennte: semtnie” Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 49 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS ., Photo No. 35 Name plate Photo No. 36 Shell manway and foundation conditions Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 50 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS ' -- Photo No. 37 C.P. rectifier and shell conditions Photo No. 38 Overflow discharge ~~· "J'.!::::. 7:2.!.~ ' Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 51 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS /l· Photo No. 39 Overflow discharge, note missing flex cell at chime base Photo No. 40 Shell coating condition Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 52 ===== [Extraction: embedded PDF text] BOOSTER NUMBER 4 RESERVOIR CITY OF WEST CHICAGO, ILLINOIS I I tM f I 1' I I ' '. 1 , I ., Photo No. 41 Valve pit roof and access manway Photo No. 42 Valve pit and piping conditions ·~ "~:~;;,~.ii.:.~' Copyright 2019 by KLM Engineering, Inc. ===== PDF PAGE 53 ===== [Extraction: OCR (rendered-page OCR)] APPENDIX B DRAWINGS ===== PDF PAGE 54 ===== [Extraction: OCR (rendered-page OCR)] 1976 waa a DRAR BY [PME JANUARY 2018 Fox i SL es | CHECKED BY | DATE KLM PROJECT NO. ‘ina DRAWING NO. 24 (Ga ENGINEERING, INC. SUBNECT | ADDER SAFETY CLIMB DEVICE — CABLE STYLE NOTES: 1. CONTRACTOR SHALL PROVIDE AND INSTALL A CABLE STYLE SAFETY CLIMB DEVICE PER THE SPECIFICATION 2. SYSTEM SHALL BE EQUIVALENT TO THE DBI/SALA LAD—SAF(R) FLEXIBLE CABLE SYSTEM 3. CONTRACTOR SHALL PROVIDE TWO (2) HARNESSES AND LAD—SAF(R) SLEEVES WITH SAFLOK CARABINER (OR EQUIVALENT) 4. CONTRACTOR SHALL PROVIDE DOUBLE LANYARDS WITH EACH HARNESS PROVIDED Full Body Harness —, with Front Attachment —\, HEEB Copyright 2019 by KLM Engineering, Incorporated. All rights reserved. This material may not be duplicated reproduced, displayed, modified or distributed without the prior express written permission of KLM Engineering, Incorporated, ===== PDF PAGE 55 ===== [Extraction: embedded PDF text] NOTES: 1. ALL WELDING SHALL BE PER AWS D1 .1 MANWAY COVER LATEST EDITION. 2 . ALL WELDING SHOWN IS TO BE DONE BY CONTRACTOR. 3 . INSTALL PRIOR TO RECOATING. 4. FIELD VERIFY LOCATION. 5. SELF RETRACTING LIFELINE (SRL) SHALL BE SALA SEALED BLOCK HEAVY DUTY OR EQUAL. ACCESS TUBE ,,., WET LADDER SELF RETRACTING LIFELINE LUG 0 11 1/4" PL SELF RETRACTING \,cm/ LIFELINE (SRL) 3/4" HOLE ~ SECTIONAL ELEVATION) LUG DETAIL ) EB E8 , "I DAlE MARCH 2019 ENGINE1f!~~ SELF RETRACTING LIFELINE Kl.M DRAWING NO. KLM WOodbury, llN 55125 (1551) 77:r5111 r AND LUG Fm (1551) 77:r5222 \.. 26 ,JI Copyright 2019 by KLM Engineering, Incorporated. All rights reserved. This material may not be duplicated reproduced, displayed, modified or distributed without the prior express written permission of KLM Engineering, Incorporated ===== PDF PAGE 56 ===== [Extraction: embedded PDF text] -------- ...... ...... -- WATERTIGHT / WATERPROOF ELEC BOX ...._ ....._ ...... ROOF PENETRATION / / ---- / / / ' ' \ / \ ------ I \ I \ \ -----------_/ I I I ' \ OUTSIDE TANK ROOF PLATE I ' \ I I I INSIDE TANK I GASKET & SEALANT I I JAM NUT I I / ,,_ - - - .._ .._ SUPPORT CHAIN / -- ...... AND ELECTRICAL / ...... THREADED CONDUIT / / ' I I / ' \ I I \ I \ I \ I \ I NOT TO SCALE I UBMERSIBLE t.AIXER DETAIL VIEW RID BEE GS-9/GS-12 ~ I I I \------------ \ I ,_,,.. \ I \ I SECTION VIEW \ MIXER I \ / INSTALLER NOTES: / 1. INSTALL MIXER IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS. / / ...... '2. INSTALL IN ACCORDANCE WITH STATE ELECTRICAL CODES AND STATE REGULATIONS. ...... --...... ___ _ '3. INSTALLER PROVIDE ALL WIRING, CONDUIT, DEVICES, BREAKERS, AND SWITCHES. -- DETAIL VIEW 4. WATERTIGHT PENETRATION IN ROOF AT THE DIRECTION OF THE ENGINEER. 5. COORDINATE WITH ENGINEER FOR DESIGN OF PERMANENT SUPPORT BRACKETS, IF REQUIRED. r DAlE Grid Bee MIXER INSTALLATION JANUARY 2018 " KLM ENG~~::~t GROUND STORAGE RESERVOIR KLM DRAWING NO. W-ry. MN 55125 (1151) 773-5111 FCIX (651) 773-5222 \... 58 ~ i Copyright 2019 by KLM Engineering, Incorporated All rights reserved. This material may not be duplicated reproduced, displayed, modified or distributed without the pfior express written permissioo of KLM Engineering, Incorporated. ===== PDF PAGE 57 ===== [Extraction: OCR (rendered-page OCR)] APPENDIX C SURFACEPREPARATIONREQUIREMENTS ===== PDF PAGE 58 ===== [Extraction: embedded PDF text] NACE SP0178-2007 (formerly RP0178-2003) Item No. 21022 INTE~NATIONAL Standard Practice Design, Fabrication, and Surface Finish Practices for Tanks and Vessels to Be Lined for Immersion Service This NACE International standard represents a consensus of those individual members who have reviewed this document, its scope, and provisions. Its acceptance does not in any respect preclude anyone, whether he or she has adopted the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not in conformance with this standard. Nothing contained in this NACE International standard is to be construed as granting any right, by implication or otherwise, to manufacture, sell, or use in connection with any method, apparatus, or product covered by Letters Patent, or as indemnifying or protecting anyone against liability for infringement of Letters Patent. This standard represents minimum requirements and should in no way be interpreted as a restriction on the use of better procedures or materials. Neither is this standard intended to apply in all cases relating to the subject. Unpredictable circumstances may negate the usefulness of this standard in specific instances. NACE International assumes no responsibility for the interpretation or use of this standard by other parties and accepts responsibility for only those official NACE International interpretations issued by NACE International in accordance with its governing procedures and policies which preclude the issuance of interpretations by individual volunteers. Users of this NACE International standard are responsible for reviewing appropriate health, safety, environmental, and regulatory documents and for determining their applicability in relation to this standard prior to its use. This NACE International standard may not necessarily address all potential health and safety problems or environmental hazards associated with the use of materials, equipment, and/or operations detailed or referred to within this standard. Users of this NACE International standard are also responsible for establishing appropriate health, safety, and environmental protection practices, in consultation with appropriate regulatory authorities if necessary, to achieve compliance with any existing applicable regulatory requirements prior to the use of this standard. CAUTIONARY NOTICE: NACE International standards are subject to periodic review, and may be revised or withdrawn at any time in accordance with NACE technical committee procedures. NACE International requires that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of initial publication and subsequently from the date of each reaffirmation or revision. The user is cautioned to obtain the latest edition. Purchasers of NACE International standards may receive current information on all standards and other NACE International publications by contacting the NACE International FirstService Department, 1440 South Creek Dr., Houston, Texas 77084-4906(telephone+1 281 /228-6200). Revised 2007-03-10 Reaffirmed 2003-03-17 Reaffirmed September 1995 Reaffirmed March 1991 Revised 1989 Approved 1978 NACE International 1440 South Creek Drive Houston, Texas 77084-4906 +1 281/228-6200 ISBN 1-57590-167-6 © 2007, NACE International ===== PDF PAGE 59 ===== [Extraction: embedded PDF text] SP0178-2007 Foreword When specifying tanks and vessels that are to be internally lined to control corrosion and prevent product contamination, special design, fabrication, and surface finishing practices must be considered to obtain the desired performance of these linings for immersion service. As the corrosiveness of the product increases, the design and fabrication of the tank or vessel becomes more critical relative to the performance of the lining. This standard presents standard practices for the design, fabrication, and surface finish of metal tanks and vessels that are to be lined for corrosion resistance and to prevent product contamination. The standard explains how the standard practices govern the quality of lining applications. Appendix A contains illustrations depicting both good and bad practices for tanks and vessels to be lined, and Appendix 8 contains a list of recommended responsibilities to ensure that an acceptable lining application is achieved. Appendix C contains written and graphic descriptions of five dewees of surface preparation of welds in tanks and vessels that may be specified prior to lining. > This standard is intended for use or reference by end users, lining specifiers, lining applicators, lining manufacturers, and contracting authorities involved in the surface preparation or lining installation in tanks and vessels intended for chemical immersion service. This standard practice was originally prepared in 1978 by NACE International Task Group (TG) T- 6A-29, a component of Unit Committee T-6A on Coaling and Lining Materials for Immersion Service, in collaboration with Unit Committee T-6H on Application and Use of Coatings for Atmospheric Service. The standard was revised in 1989 by TG T-6G-27, a component of Unit Committee T-6G on Surface Preparation for Protective Coatings, and was reaffirmed in 1991 and 1995. It was reaffirmed in 2003 by Specific Technology Group (STG) 04 on Coatings and Linings, Protective: Surface Preparation. The standard was revised in 2007 by TG 295 on Lining, Tanks and Vessels for Immersion Service: Fabrication Details, Surface Finish Requirements, and Proper Design Considerations-Review of NACE Standard RP0178-2003. This TG is administered by STG 04. It is also sponsored by STG 02 on Coatings and Linings, Protective: Atmospheric; STG 03 on Coatings and Linings, Protective: Immersion and Buried Service; and STG 43 on Transportation, Land. This standard is issued by NACE International under the auspices of STG 04. en The visual comparator mentioned in Appendix C is a molded plastic replica that illustrates various degrees of surface finishing for welds prior to coating or lining. Full-seam welds, skip welds, butt welds, lap welds, and others are depicted. For more information contact the NACE FirstService Department, 1440 South Creek Drive, Houston, TX 77084-4906. NACE International ===== PDF PAGE 60 ===== [Extraction: embedded PDF text] SP0178-2007 NACE International gratefully acknowledges the contributions of the following companies in the preparation of the welding samples and the fabrication of the die from which the plastic replicas have been molded: Auslmont USA, lnc.,<21 Thorofare, NJ CenterPoint Energy,<3l Houston TX S.G. Pinney & Associates, lnc.,!•l Port St. Lucie, FL The Sherwin-Williams Company,<5l Cleveland, OH NACE also gratefully acknowledges the assistance of KTA-Tator lnc.,csi Pittsburgh, PA, in developing the weld pattern that was used to mold the plastic replica of weld samples. In NACE standards, the terms shall, must, should, and may are used in accordance with the definitions of these terms in the NACE Publications Style Manual, 4th ed., Paragraph 7.4.1.9. Shall and must are used to state mandatory requirements. Should is used to state something considered good and is recommended but is not mandatory. May is used to state something considered optional. t2l Ausimont USA. Inc., 10 Leonards Lane, Thorofare, NJ 08086. C3l CenterPoint Energy, P.O. Box 1325, Houston, TX 77251-1 325. <4l S.G. Pinney & Associates, Inc., Corporate Office, 1326 S.W. Biitmore St., Fort St. Lucie, FL 34983. (5l r he Sherwin-Wiiiiams Company, 101 Prospect Avenue N.W., Cleveland, OH 44115. (&) KTA-Tator, Inc., 115 Technology Drive, Pittsburgh, PA 15275. Ii NACE International ===== PDF PAGE 61 ===== [Extraction: embedded PDF text] SP0178-2007 NACE International Standard Practice Design, Fabrication, and Surface Finish Practices for Tanks and Vessels to Be Lined for Immersion Service Contents 1 . General ....................................................................................................................................... 1 2. Definitions ................................................................................................................................... 1 3. Design Practices ................................ ......................................................................................... 1 4. Fabrication Practices .................................................................................................................. 3 5. Surface Finish Practices ....................................................... ...................................................... 3 Bibliography ...................................................................................................................................... 4 Appendix A: Illustrations of Design, Fabrication, and Surface Finish Practices for Metal Tanks and Vessels to Be Lined for Immersion Service ......................................................... 5 Appendix B: Recommended Responsibilities ................................................................................ 11 Appendix C: Written and Graphic Descriptions of Various Degrees of Surface Finishing of Welds That May Be Specified in Preparation for Lining of Tanks and Vessels .... 12 NACE International Ill ===== PDF PAGE 62 ===== [Extraction: OCR (rendered-page OCR)] SP0178-2007 Iv NACE International ===== PDF PAGE 63 ===== [Extraction: embedded PDF text] SP0178-2007 Section 1 : General 1 .1 This standard presents standard practices for the pictorial representations of welds and grinding finishes design, fabrication, and surface finish of tanks and vessels and are not Intended to be representative of the to be lined for immersion service. Tanks and vessels may integrity of the welds. The "weld condition prior to be lined for corrosion control or to prevent product finishing" is not a typical weld; it is only intended to contamination. illustrate defects in welds that must be corrected prior to lining. 1 .1.1 Appendix A (mandatory) contains illustrations depicting both good and bad practices for tanks and 1.2 Good welding practices and welding codes govern the vessels to be lined for immersion service. integrity of the tank and vessel welds; this standard only addresses surface preparation of the welds for the purpose 1.1.2 Appendix B (nonmandatory) contains a list of of lining the tank or vessel for immersion service. recommended responsibilities of the purchaser (user), designer, fabricator, lining applicator, and inspector to 1.3 Other design and construction codes or standards may ensure that an acceptable lining application is be used to complement the details given here. When achieved. applicable, the requirements of such other codes or standards shall be considered. A partial list of such codes 1 .1.3 Appendix C (nonmandatory) contains written and standards can be found in the Bibliography. and graphic descriptions of five degrees of surface preparation of welds in tanks and vessels that may be 1 .4 These standard practices may be used in the design, specified prior to lining. The written descriptions of the fabrication, and surface finish of tanks and vessels for five degrees of surface preparation of welds in services other than Immersion, such as dry bulk storage of Appendix C take precedence over the graphics and the solid materials. companion visual comparator. The graphics are only Section 2: Definitions Lining: A coating or layer of sheet material adhered to or in flame-sprayed linings, fiber-reinforced plastic linings, or intimate contact with the interior surface of a container used similar lining materials. to protect the container against corrosion by its contents and/or to protect the contents of the container from Surface Finish: The degree of smoothness of a surface contamination by the container material. For the purposes produced by the removal of sharp edges and the of this standard, lining refers to a surface barrier, usually a appropriate surface preparation of welds and other rough thin film less than 500 µm (20 mil) thick applied as either a areas. The term surface finish is also used to characterize lining or a coating. In common usage, the terms coating the degree of smoothness that is necessary to attain a and lining are interchangeable, but in this standard, only the surface to which the lining can be applied satisfactorily in term lining is used. The requirements contained herein may accordance with the lining specification. or may not apply to heavier, thick-film linings, sheet linings, trowel-applied and pumped-into-place finishes, plasma, Section 3: Design Practices 3.1 Accessibility tanks or vessels designed to be buried below grade. 3.1 .1 All surfaces of the tank or vessel interior shall be readily accessible for surface preparation and lining 3.1 .3 Additional manways and openings should be application (see Figures A1 through A 10, Appendix A). provided as needed to facilitate ventilation. These must meet safety requirements. 3.1.2 The manway diameter for working entrance and safety reasons during the lining application shall be as 3.2 Joints large as practical for the tank or vessel being lined. 3.2.1 Continuous butt-welded joints shall be used 3.1.2.1 If possible, at least one manway shall be whenever possible (see Figure AS, Appendix A). located near ground (working) level, except in NACE International ===== PDF PAGE 64 ===== [Extraction: embedded PDF text] SP0178-2007 3.2.2 Rivets shall not be used. 3.4.2 If appurtenances inside the tank or vessel, including nuts and bolts, cannot be lined, they shall be 3.2.3 The use of internal bolted connections should made of corrosion-resistant materials. (CAUTION: See be avoided to the fullest extent possible. Paragraph 3.3.2.1.) 3.2.4 Continuous lap-welded joints may be used but 3.4.3 If bolted connections are necessary and cannot are not preferred. For sheet lining material, this type of be made of corrosion-resistant materials, the mating construction may not be acceptable. surfaces shall be lined before assembly. Gaskets shall be used on mating surfaces and the sealing surfaces of 3.3 Connections nuts and bolts to protect the lining. 3.3.1 All connections to the tank or vessel shall be 3.4.4 Dissimilar metals shall be electrically isolated flanged. from the steel tank or vessel surface whenever possible. Where dissimilar metals are used, selection 3.3.2 Threaded connections should not be used in shall be such that the galvanic effect is minimized. tanks and vessels operating in corrosive environments Other corrosion mitigation methods may be required (see Figure A4, Appendix A). However, if threaded (see Figure AB, Appendix A). connections cannot be avoided in corrosive environments, these parts shall be fabricated of 3.4.5 Heating elements shall be offset from the tank corrosion-resistant materials, or constructed as shown or vessel surface to provide access for surface in Figure A 1o, Appendix A. preparation, application, inspection, and cleaning. Elements shall be positioned so as not to damage the 3.3.2.1 CAUTION: Dissimilar metal (galvanic) lining system. corrosion occurs when, for example, an alloy is used to replace the steel bottom of a tank, or in a 3.5 Structural Reinforcement Members similar circumstance when alloy appurtenances must be part of the construction of a vessel. If a 3.5.1 Structural support members should be installed lining is then applied to the steel and part of the on the exterior of the tank or vessel. However, If such alloy (usually 150 to 610 mm [5.9 to 24 in.]), any members are installed internally, they shall be discontinuity in the lining exposes a small anode fabricated of simple shapes such as smooth, round surface. Once corrosion starts, it progresses bars or pipe for ease of applying the lining material. rapidly because of the large exposed alloy cathodic area to the much smaller anodic area. 3.5.2 The use of internal flanged connections, Without the lining, galvanic corrosion causes the stiffening rings, reinforcement pads, angles, channels, steel to corrode at the weld area, but at a much I-beams, and other complex shapes should be slower rate. The recommended practice is to avoided. If they must be installed internally, these apply the lining to all of the alloy as well as the members shall be fully welded and welds and sharp steel, thereby eliminating the possible occurrence edges ground to a radius of at least 3.2 mm (0.13 in.) of a large-cathode-to-small-anode surface. or as agreed between the tank or vessel fabricator, tank or vessel owner, and lining applicator (see Figures 3.3.3 Nozzle connections to be lined shall be as short A1 and A6, Appendix A). as possible and be a minimum of 50 mm (2 In.) in diameter (see Figure A4, Appendix A). Connections 3.6 Heat Sinks less than 50 mm (2 in.) in diameter shall be suitably attached through a reducing flange (see Figure A10, 3.6.1 Heated, forced curing of lining systems is often Appendix A). When trowel-applied thick-film linings are preferred if not specmcally required. During tank or required, additional nozzle inside diameter shall be vessel design and fabrication, especially with field- allowed for lining thickness. erected units, consideration must be given to avoiding or minimizing heat sink areas. Such areas might 3.4 Appurtenances Inside the Tank or Vessel include opposite saddles or support lugs, flat bottoms on foundations, and stiffening rings. 3.4.1 The standard practices in Sections 3, 4, and 5 shall apply to any item to be installed inside a tank or 3.6.2 These situations may be addressed either by vessel that is to be lined. Such appurtenances include, tank or vessel design or by construction or insulation of but are not limited to, agitators, anti-swirl baffles, outlet the foundation or supports. Another possible solution connections, gauging devices, vortex breakers, and is the use of temporary constructions, such as false internal piping. floors or temporary shelters, to achieve uniform heating and curing. 2 NACE International ===== PDF PAGE 65 ===== [Extraction: embedded PDF text] SP0178-2007 Section 4: Fabrication Practices 4.1 All design practices in Section 3 shall apply to all (a) with the use of properly sized heaters; fabrication. (b) by placing the tank on a concrete pad topped with 4.2 All welding shall be continuous. Intermittent or spot a 100-mm (4-in.) layer of vermiculite concrete; welding shall not be allowed. (c) by Insulating with a high-compressive-strength 4.3 Fillets and corners must be accessible for grinding. structural grade insulation between the tank bottom and foundation; 4.4 Field tanks fabricated for use with high-heat-cured linings (e.g., unmodified phenol formaldehyde thermosetting (d) by installing an internal temporary false bottom linings) should have bottoms suitably insulated and installed approximately 1.5 m (5.0 ft) above the floor of the tank on properly drained foundations to facilitate proper cure of prior to the final high-temperature bake; or the lining on the floor of the tank. Because the sand-filled earthen foundation, concrete pad, or other similar (e) by other suitable means that practically and foundation is a poor insulator, some means must be effectively ensure a properly cured lining on the tank considered prior to the application of the lining either to floor. override the heat sink or to distribute the heat uniformly. This may be accomplished in several ways: Section 5: Surface Finish Practices 5.1 Sharp edges shall be ground to a smooth radius of at prepare the weld surface and surrounding metal least 3.2 mm (0.13 in.) or as agreed between the tank or surfaces in accordance with the specification. Over- vessel fabricator, tank or vessel owner, and lining grinding, which would result in decreasing the wall applicator. thickness or the integrity of the weld beyond the limitations imposed by good welding practices, 5.2 Tank and vessel internal surfaces to be lined shall not applicable welding codes, or tank or vessel ratings, be marred by gouges, handling marks, deep scratches, shall be avoided. metal stamp marks, slivered steel, or other surface flaws. Flaws shall be repaired by welding or grinding, as 5.4 Automatic machine welds may be acceptable as appropriate. dictated by the specifications for film continuity. 5.2.1 Limits on surface flaw depth and geometry shall 5.5 All weld spatter and arc strikes must be removed. be set by agreement between the tank or vessel Chipping may be used if followed by grinding or the use of fabricator, tank or vessel owner, and lining applicator. an abrasive disc. 5.2.2 All restorative welding shall be performed 5.6 If an anti-spatter material is applied adjacent to the according to applicable tank or vessel design codes, weld area prior to welding, the anti-spatter material shall be approved job-specific procedures, or both. one that is readily removable. Anti-spatter materials shall be removed prior to abrasive blasting. 5.3 All rough welds shall be ground to remove sharp edges and other such irregularities (see Figure A2, Appendix A). 5.7 When checking weld conlinu~y. the tank or vessel Chipping may be used to remove sharp edges if followed by fabricator shall avoid the use of oils, lubricants, or other grinding. See Appendix C for written and graphic foreign materials that would leave a contaminating residue descriptions of five degrees of surface finishing of welds not easily removed by abrasive blasting. that may be specified preparatory to the lining of tanks and vessels. 5.8 Surfaces shall be cleaned and decontaminated as required by the governing lining application specification(s). 5.3.1 The amount of grinding performed shall be judicious and performed only to the extent necessary to NACE International 3 ===== PDF PAGE 66 ===== [Extraction: embedded PDF text] SP0178·2007 Bibliography APl 17l Standard 650 (latest revision). 'Welded Steel Tanks Directive 97/23/EC (latest revision). "Pressure Equipment for Oil Storage." Washington, D.C.: American Directive (PED)." Brussels, Belgium: European Petroleum Institute (API). Commission.191 API RP 652 (latest revision). "Lining of Aboveground NACE Standard SP0294 (latest revision). "Design, Petroleum Storage Tank Bottoms." Washington, D.C.: Fabrication, and Inspection of Storage Tank Systems API. for Concentrated Fresh and Process Sulfuric Acid and Oleum at Ambient Temperatures." Houston, TX: ASME<8l Boiler and Pressure Vessel Code (latest revision). NACE. New York, NY: ASME. 171 American Petroleum Institute (API), 1220 L Street, NW, Washington, D.C. 20005-4070. any Contact Laurie Sylte P.O./Prol #. MN3924 Suite4 Telephone: 651-773-5111 Location: Woodbury, MN 55125 E-Mail; lsylte@klmengineering.com West Chicago, IL MalJix TCLP (Waste) Metals Content Oltler Tests Turnaround Time Comments: la Paint Chips D Wipe 0Lead OLead OPH (Conosivity) OSameDay* OSoil OFMer ORCRA (8) Metals 0 Lead, Cad., Chmme. Olgnitability IZ}Rush• D Abrasive 0 D 0 RCRA (8) Metals ovoc (Method 24, etc) 0Standard D Wastewater D 0 0 Wipes Nr Sampling Filters GPI labs accep1s Visa, MasterCard, ir'id American Express. •Accelerated Turnaround is not available for everv test. Please call for inl'ormalion. 0 TSP 0PM10 Lebora!Dly SalJllle Dal&'Time Area~ed D 37 mm cassette ID Nurrber Sampled Sample Identification I Location: Special Instructions: (sq.ft.) Minules Flow Rate UNITS /\L. lcp?O 1 5-13-19 Exterior Shell ,c:n":>I 2 5-13-19 Interior Wet Plates ,.,,5L. 3 5-13-19 - Exterior Roof ..L l'"l,~3 4 5-13-19 Interior Wet Top Shell Weld Seam • Sampled By (Please print) : Devin Severson Date su~tted: 5-20-2019 Signature: 1Vl~1Lt,,J lcf11~ Received by: Date/Time: Relinquished Date/Time:, _______ _ ~Received by: Date/Time: ReUnquished Date/Time:,_______ _ Page -1 of -1 .~ Method of Shipment ~1 Received for Laboratory by: Submittal#: 1.1H"t - os- ·1:t .- OC)\ 1118/17 Fonn #: 53-12