Okaloosa County BOCC — February 18, 2014 — Repair & Paint Countryview & Bluewater Tanks — reading text

grinding is considered incidental to the welding work and is to be included in the Base Bid. After grinding, these areas shall be cleaned to produce the profile recommended by the manufacturer of the coating system. Cleaning Areas To Be Welded a. It shall be necessary to remove the coating prior to the welding of any new items to the tank. b. All areas that have been welded and/or ground smooth shall be cleaned prior to painting to provide proper profile for the coating system. c. Areas to be welded shall be welded prior to the final cleaning and painting of surfaces within the heat-affected zone. The heat-affected zone includes the opposite side of the plate or member being welded. Even if not specifically 009870 - 16 Job No. 41-459 mentioned as a part of the Work under this Agreement, those areas of paint or coatings in the heat-affected zone of areas not specified to be painted shall be cleaned and painted in accordance with the requirements listed in these Detailed Technical Specifications. C. Pit Filling 1. After an area of steel is abrasive blast cleaned, any pits, rough areas or seams marked for pit filling or surfacing by the ENGINEER shall be filled with solventless polyamide epoxy seam sealer of the type recommended by the supplier of the interior paint system. The epoxy seam sealer shall be applied neatly and smoothly to the steel surfaces and any rough areas of the seam sealer shall be sanded smooth prior to the application of the coating system. 2. The CONTRACTOR shall include in his base bid two gallons of pit filler. D. Seam/Seal Welding 1. All areas of apparent seam deterioration shall be abrasive blast cleaned, and any seam corrosion or undercut marked by the Engineer shall be repaired by arc- gouging and welding. 2. The number of linear feet of seam welding shall be paid for by the unit price as listed in the Bid Proposal. E. Handrail Addition (in base bid - both tanks) Fabricate and install a handrail on the exterior of the access tube at the top of both tanks as depicted in the detailed drawing in the Appendix. Depicted on side of access tube, but final location (access tube or top of tank) to be determined by OWNER at time of installation. An additional coat of zinc-rich primer shall be shop-applied to all replacement parts. G. Tank Vent (separate bid item - Bluewater Tank only) Replace tank vent with 24" Pressure Vacuum Vent as manufactured by Newlin’s Welding and Tank Maintenance (Montezuma, IN - Phone No. (765) 245-2741) K. Roof Manway (separate bid item - both tanks) Replace existing 24" roof manway with new 30" roof manway as manufactured by Newlin’s Welding and Tank Maintenance (Montezuma, IN - Phone No. (765) 245- Repair & Paint 009870 - 17 Countryview & Bluewater Tanks (2014) Job No. 41-459 2741). Details included in Appendix. An additional coat of zinc-rich primer shall be shop-applied to all replacement parts. L. Target (in base bid - both tanks) Remove and dispose of existing target, brackets and any associated appurtenances and seal all penetrations by welding, as applicable, before commencing blasting and painting operations. M. Existing Transducer and New Conduit (in base bid — both tanks) Remove existing transducer and cable under supervision of OWNER’s SCADA personnel. Install new rigid galvanized conduit from existing transducer tap to RTU panel, routing down through dry riser. Transducer and cable to be re-installed at later date by others. Details for conduit in Electrical Drawings in Appendix. N. Countryview Tank Repairs (in base bid) 1. Replace dry riser entrance door hinges and weatherstrip around door to prevent entrance by insects. 2. Replace screens on vent and dry riser vents. O. Bluewater Tank Repairs (separate bid item) Replace screened end of overflow pipe with weighted flapper and screen to meet FDEP regulations. P. Bluewater Tank Repairs (in base bid) 1. Repair door frame before blasting and painting Seal conduit penetrations in dry pillar by welding plates as needed, reducing size of penetrations to match conduit size. Remove and grind smooth existing old ladder brackets. 4. Replace vent screens. ive) 3.6 REPAINTING THE TANKS A. General 1. All cleaning and painting shall be done in a workmanlike manner. Curing times and ventilation requirements of the paint manufacturer shall be strictly enforced by the CONTRACTOR. Repair & Paint 009870 - 18 Countryview & Bluewater Tanks (2014) Job No. 41-459 The CONTRACTOR shall have sufficient Wet Film Thickness Gauges and a calibrated Dry Film Thickness Gauge on the premises during all working hours after any painting begins. In addition to the minimum and maximum dry film requirements (See Appendix, Table 1), all sags, runs, pinholes, craters, roller nap, and other irregularities which would be detrimental to the life or appearance of the coating(s) shall be removed and repaired at no additional cost to the OWNER. Finish coats shall be uniform in color, hide and sheen (gloss) without streaks, laps, runs, drips, sags or missed areas. B. Painting Environment 1. Repair & Paint All temperature and humidity requirements of the paint manufacturer's published product data shall be followed. In addition, no painting shall be done when the relative humidity is greater than 80%, or the temperature of the steel is or is expected to be less than 5 degrees F above the dew point temperature during application and until the coating has cured to resist moisture in accordance with the manufacturer's published product data. The CONTRACTOR shall have wet bulb-dry bulb measuring equipment and steel temperature measuring equipment on the job at all times. Readings shall be recorded at the beginning and end of each painting session and at no less than two (2) hour intervals. Wind velocities during exterior painting shall be compatible for the quality application of the exterior coatings. Measurements shall be recorded on the Daily Coatings Report. Minimum Temperature a. Each component shall be maintained at a minimum of 75 degrees F prior to mixing. b. The mixed coatings shall also be maintained at a minimum of 65 degrees F during application. c. All costs associated with keeping the coating material at the minimum specified temperature shall be included in the Base Bid. Mixing of Coatings a. Each component shall be thoroughly mixed on-site with a power agitator in accordance with the manufacturer’s printed instructions to ensure no pigment remains on the bottom of the container. b. Anentire kit shall be mixed together to ensure proper ratios of components. c. The container shall be large enough to hold all components to be mixed, 009870 - 19 Countryview & Bluewater Tanks (2014) Job No. 41-459 including thinner. The combined material shall be thoroughly mixed with a power agitator that shall be driven by a 3/4" drill motor not exceeding 300 rpm and which do not cause air entrainment to achieve a uniform consistency. Adherence to proper induction times and re-coat schedule for the combined coating material shall be in accordance with the manufacturer's published product data. No coating shall be applied until the minimum induction time has been reached. 6. Coatings Application a. Methods of application are at the discretion of the CONTRACTOR as long as the materials are applied in accordance with the manufacturer's published data and the end results are in compliance with these specifications (including all others inferred by reference). Brushes shall be: Purdy Corporation, Professional Quality, Black China Bristle Series, or Wooster Brush Company Pro 10, Professional Quality, Black China, sash and trim brushes, or approved equal. Rollers shall be Purdy Corporation, Professional Quality, Lambskin rollers with phenolic core, or Wooster Brush Company, Professional Quality, Resin/Coat Rollers, or Premier Lint Free, Epoxy Bonded to Phenolic Core, Premier Richmond Hill, NY, or approved equal. Techniques shall be used which will not allow coating droplets to travel from the base of the tank or escape from the containment apparatus. Prior to the cleaning or coating of any surface, the CONTRACTOR shall present a written plan for approval by the PROJECT REPRESENTATIVE and the ENGINEER concerning how abrasive and/or paint damage to automobiles and property will be handled, including a process for quick removal of the abrasive or paint, and who will do the Work. This approval in no way shall relieve the CONTRACTOR from the responsibility of settling claims for damage, but is intended as an avenue to expedite and minimize said claims. 7. Coating Thickness a. Dry film thicknesses (DFT) specified in the attached painting schedule (see Appendix, Table 1), are dry mil thicknesses measured in accordance with Steel Structures Painting Council SSPC-PA-2, Paint Application Specification No. 2, “Measurement of Dry Paint Thickness with Magnetic Gauges.” Painting Contractor shall apply additional coats as necessary to achieve the specified minimum dry film thickness range per coat. b. The thickness of each type paint is essential to the system's integrity (see Repair & Paint Countryview & Bluewater Tanks (2014) Appendix, Table 1). The addition of mils in a succeeding coat of a different generic type or formulation to make up for thin preceding coat(s) shall not be allowed. Ifa thicker finish coat is needed to hide the underlying darker color on the exterior of the tank, a thicker coat may be applied, but it shall not exceed the 009870 - 20 Job No. 41-459 maximum allowable thickness recommended by the coating manufacturer. - c. Under no circumstances shall the dry film thickness of an individual coat or of the total coating system exceed the coating manufacturer's maximum allowable thickness limit. f. Dry mil thickness greater than the coating manufacturer's maximum allowable thickness shall be considered unacceptable and shall be removed by the CONTRACTOR at no additional cost to the OWNER at the direction of the ENGINEER and OWNER. g. Some coatings may require additional coats applied to achieve the specified thickness when applied by brush or roller. No additional compensation shall be made for additional coats required to achieve the specified minimum thickness. 8. Surface Conditions a. The surfaces to be painted shall be free from mud, oil, grease, dust, moisture, salts, and other foreign material which would cause adhesion or other problems in the finished product. b. If field tests by the ENGINEER find questionable amounts of contamination on the steel surfaces or painted surfaces to be top-coated, a representative of the paint manufacturer may be called to examine the surfaces in question and determine if the surfaces are in accordance with these Detailed Technical Specifications and the manufacturer's published product data. 9. Painting Schedule a. The tank should be entirely cleaned and primed prior to the start of the intermediate painting to avoid damage to the topcoats from adjacent cleaning operations. b. The primer shall not be applied closer than 6" to the edge of a surface yet to be cleaned. c. Ifthe re-coat cycle of the primer prevents completing cleaning and priming of the tank before applying the intermediate coat, then the CONTRACTOR shall submit, in writing, a schedule for coating application which will avoid damage to the intermediate and finish coats when applied close to uncleaned surfaces. 10. Piping a. The CONTRACTOR shall be responsible for assuring that no foreign material including, but not limited to paint, abrasive, rags, or tools enter the : inlet/outlet, drain, or overflow piping during the prosecution of the Work. b. Any material found in this piping at the time the tank is placed back into service shall be removed at the expense of the CONTRACTOR. To aid in preventing the entrance of foreign material, the CONTRACTOR shall drain the pipe and either lower the protective cover to the top of the