CITY OF WATSONVILLE

AIRPORT TANK REHABILITATION PROJECT

TECHNICAL SPECIFICATIONS

TABLE OF CONTENTS

SECTION DESCRIPTION

011100 Coordination of Work and Permits

013300 Submittals

024100 Equipment, Piping, and Materials Demolition

099198 Removal of Lead Bearing Coatings

099672 Repair and Recoating of Existing Steel Water Tank

099674 Coatings for Steel Water Tank

133430 Steel Water Tank Structural Repair

Attachment A – Select Record Drawings Attachment B – Airport Reservoir Inspection Report Attachment C – Airport Reservoir Preliminary Tank Coating Test Results

COORDINATION OF WORK, PERMITS, AND REGULATIONS 011100-1

SECTION 011100 COORDINATION OF WORK AND PERMITS

1.01 DESCRIPTION

This section generally describes the project and includes Contractor's use of premises, and operation of existing facilities, permits, and regulations.

1.02 GENERAL NATURE OF WORK

The work involves rehabilitation and recoating at an existing steel water storage tank, the Airport Reservoir. For the steel reservoir, the complete interior surfaces and tank appurtenances will be cleaned, repaired and recoated. The work also includes structural repairs of the tank.

1.03 LOCATION OF PROJECT SITE

The Airport Reservoir site is located in the City of Watsonville, on City owned property and located at the southwest end of Burchell Avenue. See Sheet G-01 for the project location map.

1.04 WORK BY OTHERS

A. No other construction contracts are currently planned for the site. The Contractor shall have full access to the site and shall stage equipment and materials within the areas designated on the project plans.

B. In case of conflict in site use, see: MUTUAL RESPONSIBILITY OF CONTRACTORS, General Provisions.

1.05 WORK SEQUENCE AND SCHEDULE

A. Prior to the start of work, the City will temporarily remove the Airport Reservoir from service and drain the reservoir. The Contractor shall provide a minimum 10-day notice prior to the start of work to allow for the City to drain the reservoir. Any nuisance water remaining in the tank shall be the responsibility of the Contractor to pump out prior to starting work on the tank.

1.06 CONTRACTOR'S USE OF PREMISES

A. The Contractor shall have full access to the site and shall stage equipment and materials within the areas designated on the project plans.

1.07 MAINTENANCE AND OPERATION OF EXISTING FACILITIES

A. Operation of existing facilities, including operating valves, draining tanks, operation of temporary storage facilities, etc., shall be the responsibility of the City.

COORDINATION OF WORK, PERMITS, AND REGULATIONS 011100-2

1.08 PERMITS

A. The City has not obtained any permits for this project. The Contractor shall obtain any permits necessary to complete the Work, if required.

B. Required permits may contain requirements that affect the cost of project work. Comply with the permit requirements and obtain and pay the fees involved with the supplementary work permits

1.09 LICENSES

A. The prime contractor and subcontractors shall obtain and pay for a City of Watsonville Business License. Detailed information concerning business license may be obtained from the City’s website.

END OF SECTION

SUBMITTALS 013300-1

SECTION 013300 SUBMITTALS

1.01 SHOP DRAWINGS

A. Submit shop drawings in accordance with the General Provisions.

B. The use of contract drawing reproductions for shop drawings is subject to rejection.

C. Submit digital copies in PDF format of shop drawings. The Owner's Representative will return the same. Clearly indicate the equipment tag or identification number, specification section, and drawing number to which each shop drawing is referenced.

D. If the Contractor submits shop drawings of equipment by manufacturers other than those listed in the specifications, provide the following information with the submittal:

1. The name and address of at least three companies or agencies that are currently using the equipment.

2. The name and telephone number of at least one person at each of the above companies or agencies whom the Owner's Representative may contact.

3. A description of the equipment that was installed at the above locations. The description shall be in sufficient detail to allow the Owner's Representative to compare it with the equipment that is proposed to be installed in this project.

E. For materials originating outside of the United States for which tests are required, provide recertification and retesting by an independent domestic testing laboratory.

1.02 SAMPLES

A. Furnish samples of the various materials, together with the finish thereon, as specified for and intended to be used on or in the work. Send samples to the office of the Owner's Representative, carriage prepaid.

B. Submit samples before purchasing, fabricating, applying, or installing such materials and finishes.

C. Submit samples, other than field samples, in duplicate. A cover letter shall accompany the sample and shall list all items being transmitted, designating their particular usage and location in the project. One sample marked "Resubmittal Not Required" will be returned to the Contractor; rejected samples will not be returned.

D. Samples shall be submitted and resubmitted until acceptable. Materials, finishes, and workmanship in the completed project shall be equal in every respect to that of the samples so submitted and accepted.

E. Samples shall conform to materials, fixtures, equipment, surface textures, colors, etc., as required by drawings and specifications or as requested by the Owner's Representative.

SUBMITTALS 013300-2

F. Identify sample as to product, color, manufacturer, trade name, lot, style, model, etc., location of use, and contract document reference, as well as the names of the Contractor, supplier, project, and Owner's Representative.

1.03 SUBMITTAL REGISTER

Designate in a submittal register/schedule, coordinated with the construction schedule the date for submission and the date the reviewed shop drawings, product data, and samples will be needed. The submittal register shall include the submittal description, specification section, date to be submitted, date reviewed, and date acceptable submittal is required.

1.04 SUBMITTAL REQUIREMENTS

A. Make submittals promptly in accordance with the submittal register/schedule and in such sequence as to cause no delay in the work. Schedule submission a minimum of 30 calendar days before reviewed submittals will be needed.

B. Allow 10 days for submittal review for initial review and for each resubmittal.

C. Submittals shall contain:

1. The date of submission and the dates of any previous submissions.

2. The project title and number.

3. Contract identification.

4. The names of:

a. Contractor.

b. Supplier.

c. Manufacturer.

5. Identification of the product, with the specification section number.

6. Field dimensions, clearly identified as such.

7. Relationship to adjacent or critical features of the work or materials.

8. Identification of deviations from contract documents.

9. Identification of revisions on resubmittals.

10. A 5-inch by 5-inch blank space for stamps of the Owner’s Representative.

11. Contractor’s stamp, initialed or signed, shall certify Contractor’s review of submittal, verification of products, field measurements and field construction

SUBMITTALS 013300-3

criteria, and coordination of the information within the submittal that the product meets the requirements of the work and of the contract documents.

1.05 SUBMITTAL FORMAT

A. Each submittal shall have a transmittal form. A sample transmittal form is included at the end of this section. Every page in a submittal shall be numbered in sequence. Each copy of a submittal shall be collated and stapled or bound, as appropriate. Copies not collated will be rejected.

B. Where product data from a manufacturer is submitted, clearly mark which model is proposed, with all pertinent data, capacities, dimensions, clearances, diagrams, controls, connections, anchorage, and supports. Present a sufficient level of detail for assessment of compliance with the contract documents.

C. Each submittal shall be assigned a unique number. Submittals shall be numbered sequentially. The submittal numbers shall be clearly noted on the transmittal. Original submittals shall be assigned a numeric submittal number. Resubmittals shall bear an alphanumeric system which consists of the specification section number assigned to the original submittal for that item followed by a letter of the alphabet to represent that it is a subsequent submittal of the original. For example, if Submittal 25 requires a resubmittal, the first resubmittal will bear the designation 25.1 and the second resubmittal will bear the designation 25.2 and so on.

D. Disorganized submittals that do not meet the requirements above will be returned without review.

1.06 RESUBMITTALS

Resubmittal of submittals will be reviewed and returned in the same review period as for the original submittal. It is considered reasonable that the Contractor shall make a complete and acceptable submittal by the second submission of a submittal item. The Owner’s Representative reserves the right to withhold monies due to the Contractor to cover additional costs of any review beyond the second submittal.

1.07 CONTRACTOR'S JOBSITE DRAWINGS

Provide and maintain on the jobsite one complete set of prints of all drawings which form a part of the contract. Immediately after each portion of the work is installed, indicate all deviations from the original design shown in the drawings either by additional sketches or ink thereon. Upon completion of the job, deliver this record set to the Owner's Representative.

SUBMITTALS 013300-4

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EQUIPMENT, PIPING, AND MATERIALS DEMOLITION 024100-1

SECTION 024100 EQUIPMENT, PIPING, AND MATERIALS DEMOLITION

PART 1 - GENERAL

1.01 DESCRIPTION

This section describes demolition and removal, replacement, abandonment, and relocation of existing mechanical and electrical equipment and piping.

PART 2 - MATERIALS

Refer to other sections of these specifications for material to be used as replacements for removed or abandoned equipment.

PART 3 - EXECUTION

3.01 GENERAL

Perform removal, abandonment, and demolition work specified and indicated in the drawings. Prepare remaining surfaces to receive new scheduled and specified materials and finishes or finish to match adjacent surfaces if no additional work is scheduled or indicated.

3.02 REMOVAL AND REPLACEMENT

Temporarily remove existing materials and equipment in conflict with proposed construction including cathodic protection equipment, level sensors and transducers, chlorine analyzers, and other materials and equipment not requiring coating or modifications. Upon completion of other work, reinstall materials and equipment to the satisfaction of the Owner, Engineer, and in accordance with current regulations and codes to functional pre-construction conditions or better. Securely store temporarily removed items and protect from damage.

3.03 SHUTDOWNS OF EXISTING PIPING AND ELECTRICAL UTILITIES

Shut off or disconnect utilities affecting demolition work. Schedule shutdowns with the Owner; notify the Owner 14 working days in advance of any shutdown that is required to perform the work. The Owner will open/close valves on piping, and electrical disconnects required for the shutdowns.

3.04 TEMPORARY SUPPORT OF EXISTING EXPOSED PIPING

A. Provide temporary supports for existing piping to remain. Do not block access to the adjacent valves, equipment, or access door and stairways with the temporary supports.

EQUIPMENT, PIPING, AND MATERIALS DEMOLITION 024100-2

3.05 PLUGGING ABANDONED PIPING

Plug buried pipes 6 inches and larger to be abandoned. Plug pipes of all sizes to be abandoned under structures. Plug by placing a 3-foot-long concrete plug in the open ends, or completely fill will 2-sack slurry, as shown on the Plans.

3.06 REMOVAL OR RELOCATION OF ELECTRICAL MATERIALS AND EQUIPMENT

A. Unless otherwise noted, remove existing electrical materials and equipment from areas indicated for demolition or where equipment is to be relocated. Disconnect circuits at their source. Remove materials no longer used, such as studs, straps, and conduits.

B. Repair affected surfaces to conform to the type, quality, and finish of the surrounding surface.

3.07 PATCHING

A. Patching shall mean the restoration of a surface or item to a condition as near as practicable to match the existing adjoining surfaces unless otherwise noted, detailed, or specified.

B. When patching involves painting, special coating, vinyl fabric, or other applied finish, refinish the entire surface plane (i.e., wall or ceiling), unless complete refinishing of the entire space is scheduled or specified.

C. Patching includes cleaning of soiled surfaces.

3.08 DEMOLITION

A. Existing boxes, pipes, pavements, curbs, and other items are to be removed, altered, salvaged, and disposed of as specified herein or indicated in the drawings. Remove and dispose of all portions of these items that interfere with project construction.

B. Remove and dispose material and equipment to be demolished in their entirety.

C. Perform the work in a manner that will not damage parts of the structure not intended to be removed or to be salvaged for the Owner. If, in the opinion of the Owner's Representative, the method of demolition used may endanger or damage parts of the structure or affect the satisfactory operation of the facilities, promptly change the method when so notified by the Owner's Representative. No blasting will be permitted.

D. Equipment, material, and piping, except as specified to be salvaged for the Owner, or removed by others, within the limits of the demolition, excavations, and backfills, will become the property of the Contractor and shall be removed from the project site. The salvage value of this equipment, materials, and piping shall be reflected in the contract price of the demolition work.

E. Do not reuse material salvaged from demolition work on this project, except as specifically shown.

EQUIPMENT, PIPING, AND MATERIALS DEMOLITION 024100-3

EQUIPMENT, PIPING, AND MATERIALS DEMOLITION 024100-4

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REMOVAL OF LEAD-BEARING COATINGS 099198-1

CIWAT.230372.01

SECTION 099198 REMOVAL OF LEAD-BEARING COATINGS

PART 1 - GENERAL

1.01 DESCRIPTION

A. This section describes the materials, processes, protective measures, and inspection for the removal and disposal of lead-bearing paint and coatings from steel tanks.

B. The work shall include removal of the lead-bearing paint to bare metal on the tank, piping, and other appurtenances that require recoating or are within cutting zones. Package and transport lead-bearing waste material to a California-approved waste disposal site for such materials with the following options:

1. Option A: Hazardous materials permanently stored at a waste disposal facility.

2. Option B: Hazardous materials processed by either a recycling or incineration facility.

C. Provide and operate required safety equipment including respiratory and protective gear.

Contractor is also responsible for personal monitoring of Contractor personnel and posting access restrictions required during the course of work.

D. Perform work in compliance with federal, state, and local laws and regulations including the following:

1. EPA.

2. OSHA Rule on Lead Exposure in Construction (29 CFR 1926.62)

3. California Hazardous Waste Control Act.

4. Title 8, California Code of Regulations including Section 5216.

5. Title 22, California Code of Regulations, Chapter 30.

6. Title 26, California Code of Regulations.

7. Department of Health and Safety.

8. CAL/OSHA including Section 5144.

9. Division 2, Health and Safety Code Chapter 6.5.

10. SSPC Guides 6 and 7.

REMOVAL OF LEAD-BEARING COATINGS 099198-2

1.02 RELATED WORK SPECIFIED ELSEWHERE

A. Painting and Coating: 099000.

B. Recoating Existing Steel Water Tank: 099672.

C. Coatings for Steel Water Tank (Epoxy): 099674.

1.03 SUBMITTALS

A. Submit manufacturer's literature on equipment to be used for removal and packaging of contaminated materials.

B. Submit list of projects and owners where equipment has been used and list of projects which Contractor has performed removal of lead-bearing or other contaminated materials.

C. Submit description of removal procedure including method, secondary precautions, containment, and limitations in removal and in the techniques used.

D. Submit description of procedures of packaging and transporting lead-bearing material.

E. Submit manufacturer's catalog description of safety equipment and procedures.

F. Submit name of hazardous waste transporter including EPA license number and permit.

G. Submit name and address of hazardous waste disposal site where the contaminated material will be deposited including license number.

H. Submit completed uniform hazardous waste shipping manifest.

I. Submit completed inspection and test reports for monitoring requirements during removal operations.

1.04 PRECONSTRUCTION CONFERENCE

At least seven days prior to start of removal of the coating and after review of submittal Items A through G, submit a schedule and arrange for a conference with the paint contractor (if applicable), Owner's Representative, Owner, and manufacturers of equipment to be used in the removal of the coatings to coordinate the following:

A. Safety equipment and procedures including personnel changing room.

B. Procedures for removal, containment, packaging, and transporting of lead-bearing and other materials.

C. Posting and access restrictions required during course of work.

D. Owner's inspection.

REMOVAL OF LEAD-BEARING COATINGS 099198-3

E. Specification compliance for removal and handling of lead-bearing materials.

F. Schedule removal operation and transportation of lead-bearing waste.

G. Weather limitations.

H. List of equipment for removal operations.

I. Manpower.

1.05 OBSERVATION OF WORK

A. The Owner's Representative will observe all phases of lead-bearing coating removal and packaging of lead-bearing materials for transporting. Contractor shall provide 24 hours' notice prior to removal or handling of lead-bearing materials.

B. The Contractor shall monitor for airborne and site contamination for compliance with Title 8, California Code of Regulations, Section 5216 and Title 22 of the California Code of Regulations (Article II, Section 66699).

C. The Contractor shall be responsible for monitoring his personnel in accordance with Title 8, California Code of Regulations, Section 5216 and OSHA 29 CFR 1926.62.

D. Upon completion of the removal of the lead-bearing coatings, the Owner's Representative will take smear samples at the removal surfaces and site samples to confirm the tank and site are free of contamination. No sand blasting shall take place prior to the confirmation of these tests.

E. Upon the return of the smear and site contamination samples, a 4-foot by 8-foot area shall be sand blasted in accordance with SSPC SP-6 and these specifications. This initial area shall be tented and kept in a negative atmospheric environment during blasting to contain all sand blasting materials. The Owner's Representative will take samples of the blast materials and test to determine whether lead contamination is below the levels in Title 22 of the California Code of Regulations. While total lead content as high as 1,000 ppm is allowable under certain circumstances, the presence of soluble lead components is required to be less than 5 ppm for the soluble threshold limit concentration (STLC). This corresponds to a total threshold limit concentration (TTLC) level of less than 50 ppm.

Unless data shows there is a significant insoluble component of lead in the waste paint-sand mixtures, this latter limit of 50 ppm will be used as the criterion for defining the waste as hazardous. If the level is higher than 50 ppm but STLC testing yields soluble lead of less than 5 ppm, the waste would not be classified as hazardous as long as the total lead (TTLC) is less than 1,000 ppm.

1.06 MEASUREMENT AND PAYMENT

Payment for removal of lead-contaminated coatings shall be in accordance with the lump-sum amount as shown in the Bid Schedule.

REMOVAL OF LEAD-BEARING COATINGS 099198-4

PART 2 - MATERIALS

2.01 PACKAGING HAZARDOUS WASTE

Containers for packaging lead-bearing waste shall meet EPA and Department of Transportation requirements for hazardous materials.

2.02 GROUND COVERS

Manufacture tarpaulins for ground cloths and diapers of material that cannot be contaminated with dust particles impregnated into the fabric.

2.03 EQUIPMENT

A. Use equipment designed for removal of hazardous materials that will not contaminate the environment with its own generated material or the removed material and will not generate additional hazardous waste beyond the coating material removed.

B. Equipment shall be vacuum needle guns with HEPA type filters as manufactured by Pentek, Inc., or equal. A centrifugal shot blast system with vacuum disposal and HEPA filters may be used for horizontal surfaces.

2.04 CONDITION OF EQUIPMENT

Equipment shall be in good working order and seals and filters shall be maintained to prevent contamination beyond the disposal system.

PART 3 - EXECUTION

3.01 LIMITATIONS ON REMOVAL OF COATING

A. The specified limitations for the removal of contaminated coatings is intended to prevent airborne soil and water contamination of the project site and area adjacent to the project site.

B. No removal shall take place when weather conditions prevent full containment of removed material.

C. No removal shall take place in rain, snow, or winds greater than 5 mph without Owner's Representative's inspection.

D. The Owner may allow removal when winds are above 5 mph if equipment and procedures demonstrate full containment of removed material.

3.02 CONTAINMENT SYSTEM

Provide a containment system in accordance with SSPC-Guide 6, Class 1.

REMOVAL OF LEAD-BEARING COATINGS 099198-5

3.03 SURFACE PREPARATION PRIOR TO REMOVING COATING

A. Remove loose dirt and foreign material by sweeping or other means that will not remove the coating.

B. Remove deposits of grease and oil with a solvent that will not remove coating.

3.04 SAMPLING AND TESTING

The Contractor shall obtain four representative samples of surface preparation debris at the completion of the job. Send samples to a state-approved laboratory to test for leachable lead per EPA Method 1311. A Chain of Custody form shall accompany the samples;

follow procedures described in SSPC 7I, Section 5.6.3-b and c. Depending on the leachable lead concentration, the waste may be determined to be hazardous, per SSCP 7I, Section 5.8.

3.05 METHOD OF REMOVAL

A. The removal of contaminated coating to bare metal shall be in compliance with SSPC SP- 11 using one or both of the following two methods. Perform removal using a vacuum needle gun method for all areas except that which a centrifugal shot blast system may be used. Use both methods in conjunction with a HEPA vacuum type disposal system which filters and contains the hazardous materials and separates the abrasive from the hazardous materials where required.

B. Paint strippers may be used on inaccessible areas when reviewed by the Owner's Representative.

C. Use ground tarpaulins and/or diapers to collect any particles that may escape the vacuum.

3.06 STORAGE OF HAZARDOUS MATERIALS

A. Storage of lead-bearing and other hazardous materials shall be in containers meeting the requirements of EPA and California Code of Regulations. Mark containers with the following information:

1. Manifest document number.

2. Composition and physical state.

3. Statement that calls attention to particular hazardous properties, i.e., toxic, reactive, etc.

4. Name of waste generator (Owner): The City of Watsonville.

5. Name, address, and phone number of Contractor.

6. Name of transportation and EPA identification number (to be provided by Owner).

REMOVAL OF LEAD-BEARING COATINGS 099198-6

7. Total quantity of material by volume.

8. Initial date material was packaged.

B. Do not store hazardous materials onsite longer than 60 days.

C. At the end of each shift, seal hazardous materials in containers. Store these materials in a vandal-resistant enclosure when containers are left unattended.

3.07 TRANSPORTING HAZARDOUS MATERIALS

Hazardous materials shall be packaged, manifested, and transported by a licensed hazardous waste hauler to a hazardous waste disposal site in compliance with governmental regulations and these specifications.

3.08 DISPOSAL OF DEBRIS

A. Ship hazardous materials to a disposal facility or waste broker for treatment and disposal.

Follow the procedures outlined in SSPC-Guide 7, Section 6.3.

B. Nonhazardous materials shall be disposed of at a Subtitle D landfill.

3.09 NOTIFICATION

Provide a copy of all documentation to the Owner within 10 days of origination. Mail with registered mail signed receipt; provide copy to the Owner.

3.10 PREPARATION FOR FINISH COATING

Upon removal of the lead-bearing coating materials from the tank, piping, and appurtenances to bare metal and upon completion of inspections and tests, prepare the surface to obtain required surface profile and coat per Section 099674.

REPAIR AND RECOATING OF EXISTING STEEL WATER TANK 099672-1

SECTION 099672 REPAIR AND RECOATING OF EXISTING STEEL WATER TANK

PART 1 - GENERAL

1.01 DESCRIPTION

This section describes the preconstruction asbestos survey, heavy metal sampling, repair, application, and inspection of the protective coatings to be utilized on the interior and exterior surfaces of the Owner’s existing Rider Reservoir. Clean and coat steel water tank in accordance with Section 099674.

1.02 RELATED WORK SPECIFIED ELSEWHERE

A. Removal of Lead-Bearing Coatings: 099198.

B. Coatings for Steel Water Tank: 099674.

C. Steel Water Tank Structural Repairs: 133430.

1.03 SUBMITTALS

A. Submit shop drawings in accordance with the General Provisions and Section 013300.

B. Submit metals sampling results for tank interior and exterior surface coatings.

C. Submit qualifications for standby hole watch.

1.04 REFERENCE DOCUMENTS

The following guidelines, documents, and references are to assist the Contractor in performing its duties for inspecting, repairing, cleaning, surface preparation, and application of the coating systems. The documents listed form a part of this specification to the extent referenced.

A. Quality Control: The following references provide the means of maintaining quality control of the blasting and coating systems:

1. Steel Structures Painting Council (SSPC), Surface Preparation Specifications, Publication No. 98-01.

2. SSPC-PA Series (Paint Application Guides).

3. NACE, RPO287-02, Field Measurement of Surface Abrasive Blast Cleaned Surfaces Using a Replica Tape.

4. ASTM D4138, Standard Method of Measurement of Dry Film Thickness of Protective Coating Systems by Destructive Means.

REPAIR AND RECOATING OF EXISTING STEEL WATER TANK 099672-2

5. ASTM D4285, Standard Test Method for Indicating Oil or Water in Compressed Air.

6. ASTM D4414, Standard Practice for Measurement of Wet Film Thickness by Notch Gages.

7. U.S. Weather Bureau psychrometric tables.

8. Steel Tank Institute (STI) SP001, Standard for the Inspection of Above Ground Storage Tanks.

9. STI SP031, Standard for the Repair of Shop Fabricated Above Ground Tanks.

B. California and Local Regulations: The Contractor is solely responsible for accomplishing work in a safe manner, complying with, but not limited to, the following regulations:

1. CAL/OSHA, Title 8, Industrial Relations, Chapter 4, Division of Industrial Safety Orders, Subchapter 4, Construction Safety Order.

2. California Air Resources Board, Title 17, Subchapter 6, Abrasive Blasting.

3. South Coast Air Quality Management District: Rule 1403 (Asbestos), Rule 1113 (Architectural Coatings), Rule 402 (Nuisance), and Rule 1140 (Abrasive Blasting).

4. Dispose of hazardous waste in accordance with California Health and Safety Code, Division 20, Chapter 6.5, Hazardous Waste Control and Title 22, California Administrative Code, Chapter 30, Minimum Standards for Management of Hazardous and Extremely Hazardous Materials.

5. Title 8, CCR, General Industrial Safety Orders (GISO), Section 5156, Scope & Definitions, and Section 5159, Confined Space Operations.

6. Title 8, CCR, Construction Safety Orders, Section 1532.1, Lead in Construction.

7. Title 8, CCR, Construction Safety Orders, Article 4, Sections 1528 to 1531, Dusts, Fumes, Mists, Vapor, and Gases.

1.05 WORKER PROTECTION

A. Conform to federal, state, county, city, and Owner safety and environmental protection codes and regulations. Do not create conditions for which the Owner is subject to citations by any regulatory agency. Should the Owner be cited for a condition under the control of the Contractor, the Contractor will be responsible for payment and settlement of said citation. Provide safety equipment, including that for confined space entry and safety equipment necessary for use by the Owner’s Representative.

B. Comply with applicable regulations for properly storing, handling, transporting, and disposing of any hazardous waste.

REPAIR AND RECOATING OF EXISTING STEEL WATER TANK 099672-3

C. Provide at least one working telephone on the jobsite at all times.

D. Maintain a full-time standby hole watch in case of an emergency. This employee shall be certified in CPR, have confined space certification, and be able to comply with GISO 5157 (Operating Procedures and Employee Training) and GISO 5158 (Pre-Entry). This employee shall also be fully equipped to operate within the directives of GISO 5159 (Confined Space Operations). This person shall have his own personal safety equipment and operating telephone (not the jobsite telephone). Submit name and qualifications for standby hole watch.

E. During the interior abrasive blasting operations, blast operators shall wear National Institute of Occupational Safety and Health (NIOSH) approved air-supplied helmets. The air compressor used to supply breathing air shall conform to OSHA regulations on carbon monoxide and high-temperature protection and meet Grade D breathing air as described in Compressed Gas Association Commodity Specification G-7.1 (ANSI S86.1). Breathing air shall also be free of dust, fumes, vapors, or gases that may result in harmful exposure.

Other persons who are exposed to blasting dust shall wear approved filter-type respirators and safety goggles. When coatings are applied in confined areas, persons exposed to toxic vapors and dust shall wear NIOSH-approved air-supplied masks.

F. Prepare a written respirator program per CAL/OSHA regulations. The elements of a respirator protection program are summarized, but not limited to, the following:

1. Written standard operating procedures for selection and use;

2. Employee instructions and training in the use and limitations of respirators;

3. Regular cleaning and disinfection;

4. Sanitary storage of respirators; and

5. Regular inspection of respirators to assure that they are in good repair.

G. Blasting and spraying hoses shall be grounded to prevent accumulation of charges of static electricity.

H. Provide explosion-proof artificial lighting for all work-confined spaces. Light bulbs shall be guarded to prevent breakage. Lighting fixtures and flexible cords shall comply with the requirements of NEPA 70 NEC for the atmosphere in which they will be used.

I. Coating materials may be irritating to the skin and eyes. When handling and mixing coatings, workers shall wear gloves and eye shields.

1.06 PRECONSTRUCTION CONFERENCE

See Section 099674.

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1.07 QUALIFICATIONS

A. See Section 099674.

B. Persons conducting asbestos surveys shall be certified by Cal/OSHA pursuant to regulations required by subdivision (b) of Section 9021.5 of the Labor Code, and shall have taken and passed an EPA-approved Building Inspector Course and conform to the procedures outlined in the Course.

C. Require the coating applicator to provide a supervisor at the worksite during cleaning and coating operations. The supervisor shall have the authority to sign change orders, coordinate work, and make decisions. Provide skilled craftsmen qualified to perform the required work.

1.08 INSPECTION

A. A minimum of 14 days prior to removal of the existing coating, the affected facility or facility components shall be thoroughly surveyed by the Contractor for the presence of asbestos prior to any demolition or renovation activity. The survey shall include the inspection, identification, and quantification of all friable, and Class I and Class II non-friable asbestos containing material, and any physical sampling of materials.

B. Prior to start of abrasive blasting, the Contractor shall sample, test, and submit testing results of existing interior and exterior coatings for the presence of lead and other heavy metals included in the CAM 17 list, defined in California Code of Regulations Title 22, Section 66261.24 in accordance with EPA Test Methods for Evaluating Solid Waste, Revised Methods SW-846.

C. Prior to recoating, the Contractor will conduct an inspection of the tank in compliance with the Steel Tank Institute SP001-Standard for the Inspection of Above Ground Storage Tanks.

D. The Owner's Representative will provide coating inspection. The Owner’s Representative will provide test equipment, except for the low-voltage holiday detector. The Contractor shall conduct the low-voltage holiday test in the presence of the Owner’s Representative.

E. The Owner's Representative will perform inspection on all phases of the surface preparation, abrasive blast cleaning, and application of the coating systems. See Section 099674 for additional requirements.

PART 2 - MATERIALS

2.01 COATING SYSTEMS

REPAIR AND RECOATING OF EXISTING STEEL WATER TANK 099672-5

2.02 STEEL FOR REPAIRS

See Section 133430.

PART 3 - EXECUTION

3.01 REMOVAL OF LEAD-BEARING COATINGS

See Section 099198

3.02 DELIVERY AND STORAGE OF COATING MATERIALS

See Section 099674.

3.03 PROTECTION OF THE WORK

See Section 099674.

3.04 CONDITION OF EQUIPMENT

See Section 099674.

3.05 VENTILATION OF TANK INTERIOR

See Section 099674.

3.06 HUMIDITY AND TEMPERATURE CONTROL

See Section 099674.

3.07 INTERIOR SURFACE PREPARATION

A. Remove accumulated sand and silt from the bottom of the tank.

B. Prior to performing any work on the tank interior, the Contractor shall perform the specified dehumidification for three days, 24 hours per day, to dry the tank interior.

C. Abrasion blast clean interior surfaces per SSPC SP-10. The surface profile shall be 1.5 to

2.5 mils.

3.08 EXTERIOR SURFACE PREPARATION

A. Abrasion blast clean exterior surfaces to be coated per SSPC SP-10. The surface profile shall be 1.5 to 2.5 mils.

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3.09 LIMITATIONS ON ABRASIVE BLAST CLEANING

See Section 099674. Changed humidity or a delay, such as equipment failure, may cause a cleaned surface to color or slightly oxidize from condensation before the coating can be applied. In the event that a surface colors or becomes moist, blast clean it again before applying the coating.

3.10 ABRASIVE BLAST CLEANING

See Section 099674.

3.11 TANK REPAIR

A. See Section 099674.

3.12 MODIFICATIONS

A. Modifications must meet or exceed the original design standard requirements.

B. All piping and fittings shall be a minimum of schedule 40 steel pipe. Piping flanges shall be ANSI Class 150.

C. Connections for venting shall be flush with the inside of the top of the tank.

3.13 SPECIAL REPAIRS AND MODIFICATIONS

A. Inspect and repair as needed, shell plates, trusses, roof plates, support columns, floor, and manways as described in Section 133430.

B. Install new EPDM gasket around the access hatch.

3.14 LIMITATIONS ON THE APPLICATION OF COATINGS

A. See Section 099674.

3.15 PROCEDURES FOR THE APPLICATION OF COATINGS

See Section 099674.

3.16 APPLICATION OF INTERIOR COATING SYSTEM

A. See Section 099674.

3.17 APPLICATION OF EXTERIOR COATING SYSTEM

A. See Section 099764.

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3.18 INSPECTION FACILITIES

See Section 099674.

3.19 INSPECTION AND TESTING

A. See Section 099674.

3.20 DISINFECTION

A. See Section 099674.

3.21 TESTING FOR VOLATILE ORGANIC CONSTITUENTS

See Section 099674.

3.22 ELEVEN-MONTH INSPECTION OF COATING SYSTEMS

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COATINGS FOR STEEL WATER TANK

CIWAT.230372.03

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SECTION 099674 COATINGS FOR STEEL WATER TANK

PART 1 - GENERAL

1.01 DESCRIPTION

This section describes the materials, applications, and inspection of the protective coatings to be utilized on the interior and exterior surfaces of the steel water tank.

1.02 RELATED WORK SPECIFIED ELSEWHERE

A. Removal of Lead-Bearing Coatings: 099198.

B. Repair and Recoating Existing Steel Water Tank: 099672.

1.03 SUBMITTALS

A. Submit shop drawings in accordance with the General Provisions and Section 013300.

B. Submit coating manufacturer's catalog data on formulation and recommended use. provide a separate submittal for each material to be used in the work. At a minimum provide submittals for Abrasive materials, Paint systems, Thinners, and any other additives.

Indicate in the submittal where each product is intended for use. The Contractor shall include the following data in the interior coating system submittal:

1. Weight in pounds/gallon – ASTM D-2196

2. % solids by volume – ASTM D-2369

3. Percent solids by weight – ASTM D-2369

4. Air cure dry time to re-coat – ASTM D-1640

5. Copy of NSF-600 (Interior only) certification with maximum dry film thickness and maximum thinner percent for the thin film epoxy.

6. Minimum adhesion to steel substrate – ASTM D-4541 using a type II instrument (Minimum acceptable adhesion shall be 800 p.s.i.).

7. Manufacturer’s batch numbers and dates of manufacture for materials to be furnished as part of this project.

8. Letter from dehumidification manufacture that the equipment has been properly sized as per the specification requirements.

C. The Contractor shall include the following data in the manufacturer’s recommended handling and installation instructions for the proposed paint system submittal:

1. Storage – including maximum and minimum storage temperatures.

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2. Surface preparation including maximum height of surface profile on abrasive blast cleaned steel.

3. Coating repair procedures.

4. Application equipment.

5. Mixing and application of coating system – including a table of minimum and maximum time to re-coat as a function of temperature and humidity.

6. Curing – including curing time required before holiday testing, and curing time required before immersion as function of temperature and coating thickness.

Minimum and maximum re-coat times.

7. Acceptable temperatures at the time of application.

8. Health and Safety Plan.

9. Fire Prevention Plan.

D. Submit two sets of color chip samples illustrating available colors for the finish coats of the exterior coating system.

E. Submit the name of the company and abrasive to be used, the generic type of abrasive, the State of California Air Resources Board (CARB) certification, and product data sheets.

F. Submit complete field procedures to be utilized for any shop-primed steel surfaces.

Include detailed instructions for degreasing steel prior to blast cleaning, cleaning of blast particles before recycling, application of primers, curing period.

G. Submit manufacturer's safety data sheets on painting and coating products.

H. The Contractor shall submit, for the City Engineer’s acceptance, a written program detailing measures for full containment, and equipment and dust and over-spray control for exterior coatings.

I. Name of laboratories proposed to be used to test wastes and reservoirs water prior to testing any materials.

J. The Contractor shall include the following data in the equipment submittal:

1. Product data and procedures for the dehumidification and temperature control system.

2. Product data and procedures for the Ventilation and Containment System.

3. Details of vacuum system for removing dust and abrasive from abrasive blast cleaned surfaces.

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4. The manufacturer’s latest written operation instructions including recommendations for air filter maintenance and change interval for air compressors used for work.

K. The Contractor shall submit a disposal plan including:

1. Certification that the materials disposal plan complies with all applicable requirements of the Federal Resource Conservation and Recovery Act; Title 22 and Title 26 of the California Administrative Code; and other applicable regulations of local, state, and federal agencies having jurisdiction over the disposal of spent abrasive blast media, removed coating materials, and other waste, whether hazardous or non-hazardous.

2. The name and Environmental Laboratory Accreditation Program Certificate number of laboratory that will sample and test spent abrasive blast media and removed coating materials. Include statement of the laboratory’s certified testing areas and analyses that the laboratory is qualified to perform.

3. Written permission to dispose of material from disposal site representative. Include name, address, and telephone number of disposal site and of representative. The City shall provide written acceptance of the disposal plan prior to disposal of any wastes.

L. The Contractor shall submit the following during and after blasting and coating work:

1. Actual weight of blast cleaning abrasive used for field abrasive blast cleaning, submitted within 24 hours after blasting is completed.

2. Quantity of coating material used for each coat, submitted within 24 hours after completion of each coat.

3. Laboratory test results for representative waste samples prior to removing any waste materials from the job site. At a minimum, the samples shall be tested for total concentrations of the 17 metals identified in Title 22, for comparison to Total Threshold Limit Concentrations (TTLC) values. The California Waste Extraction Test (WET) shall be performed for each analyte of each sample for which the total concentration exceeds 10 times the STLC value, if any, as specified in Title 22.

Toxic Characteristic Leaching Procedure (TCLP) testing shall be performed for each analyte of each sample for which the total concentration exceeds 20 times the TCLP values, if any, specified in the Federal Resource Conservation and Recovery Act.

Reactivity, corrosively, and Ignitability testing shall be performed as required by Title 22 and/or the City or representative of the disposal facility. Testing shall be performed separately on interior and exterior coating wastes.

4. Receipts from disposal site for all wastes. Receipts shall identify disposed material and source, show quantity of disposed material in tons or cubic yards, and show method used for final disposition as buried, incinerated, and chemically treated and/or other means.

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5. Quantity of thinner used for each coat and total amount used.

1.04 REFERENCE DOCUMENTS

The following guidelines, documents, and references are to assist the Contractor in performing its duties for inspecting, repairing, cleaning, surface preparation, and application of the coating systems. The documents listed form a part of this specification to the extent referenced.

A. Quality Control: The following references provide the means of maintaining quality control of the blasting and coating systems:

1. AWWA D102-97, Standard for Painting Steel Water-Storage Tanks

2. AWWA C652, Disinfection of Water Storage Facilities.

3. ISO-8502-3, Preparation of Steel Substrates (Class 2)

4. Steel Structures Painting Council (SSPC), Surface Preparation Specifications, Publication No. 98-01.

5. SSPC-Vol.1, Steel Structures Painting Manual, Good Painting Practice.

6. SSPC-Vol.2, Steel Structures Painting Manual, Systems and Specifications.

7. SSPC-PA Series (Paint Application Guides).

8. NACE, RPO287-02, Field Measurement of Surface Abrasive Blast Cleaned Surfaces Using a Replica Tape.

9. ASTM D4138, Standard Method of Measurement of Dry Film Thickness of Protective Coating Systems by Destructive Means.

10. ASTM D4285, Standard Test Method for Indicating Oil or Water in Compressed Air.

11. ASTM D4414, Standard Practice for Measurement of Wet Film Thickness by Notch Gages.

12. U.S. Weather Bureau psychrometric tables.

13. Steel Tank Institute (STI) SP001, Standard for the Inspection of Above Ground Storage Tanks.

14. STI SP031, Standard for the Repair of Shop Fabricated Above Ground Tanks.

B. California and Local Regulations: The Contractor is solely responsible for accomplishing work in a safe manner, complying with, but not limited to, the following regulations:

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1. CAL/OSHA, Title 8, Industrial Relations, Chapter 4, Division of Industrial Safety Orders, Subchapter 4, Construction Safety Order.

2. California Air Resources Board, Title 17, Subchapter 6, Abrasive Blasting.

3. Monterey Air resources District Regulations: Rule 426 (Architectural Coatings) and Rule 402 (Nuisance).

4. Dispose of hazardous waste in accordance with California Health and Safety Code, Division 20, Chapter 6.5, Hazardous Waste Control and Title 22, California Administrative Code, Chapter 30, Minimum Standards for Management of Hazardous and Extremely Hazardous Materials.

5. Title 8, CCR, General Industrial Safety Orders (GISO), Section 5156, Scope & Definitions, and Section 5159, Confined Space Operations.

6. Title 8, CCR, Construction Safety Orders, Section 1532.1, Lead in Construction.

7. Title 8, CCR, Construction Safety Orders, Article 4, Sections 1528 to 1531, Dusts, Fumes, Mists, Vapor, and Gases.

1.05 PRECONSTRUCTION CONFERENCE

At least 14 days prior to the field application of the coating systems to the steel tank, schedule and arrange a conference with the Owner's Representative, coating applicator, and the coating manufacturer to coordinate the following:

A. Tank manufacturer's work schedule for inspection coordination.

B. Surface preparation methods.

C. Specification compliance of blast abrasives and surface profile.

D. Schedule of blast cleaning and coating application.

E. List of equipment for cleaning and coating applications.

F. Weather limitations for acceptable work.

G. Inspection facilities.

1.06 QUALIFICATIONS

A. The Contractor shall require the coating applicator to hold a valid State of California Contractor's Class C-33 license for performing abrasive blast cleaning and coating/painting work. The Contractor's coating applicator shall demonstrate a minimum of five years' experience and successful history in the application of the specified products to surfaces of potable water steel tanks.

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B. The Contractor shall provide evidence of regular engagement in application of 100% solids coatings for at least five years prior to commencement of this work on potable water storage reservoirs.

C. The Contractor shall certify in writing that foremen and workers on-site shall be experienced and knowledgeable in preparation for and application of high-performance industrial coatings.

D. The Contractor’s workmanship shall conform to standards and recommendations of SSPS Vol. 1, especially Chapters 5.1 and 6.

E. The City may use any testing method deemed necessary by the City Coating Inspector to verify quality of work. The City may, but is not required to, monitor the quality of work pursuant to this section.

F. The Contractor shall ensure proper materials handling and use, including: all coating materials are labeled and used in accordance with SSPC-PA 1, Paragraphs 5.1.1 thru 5.1.5, except all coating system materials without a stated shelf life shall be delivered and used within six months of the date of manufacture; and certification, from any source, that the coating system materials are still suitable for use beyond the stated shelf life or beyond the six month period specified above will not be accepted. All equipment and materials shall be stored in a secured ventilated container.

G. The Contractor shall perform the necessary quality assurance in accordance with an approved plan. The Contractor will supply all inspection equipment.

1.07 MANUFACTURER’S SERVICES

Provide coating manufacturer’s services at the jobsite for the minimum labor days listed below, travel time excluded:

A. Two labor days to advise the coating applicators on the following subjects at a minimum:

use of plural component equipment (or other application equipment) for the application of the particular coatings specified for the project; required degree of mixing for each coating; required coating temperature range during the mixing operations; required coating temperature range in the application or spraying equipment; allowable pot life for each coating; required application viscosity range for each coating; use of dehumidification equipment for the application of the particular coatings specified for the project; ambient application temperature range for each coating layer; substrate or surface application temperature range for each coating layer; ambient application relative humidity range for each coating layer; curing requirements for each coating layer; and any particular special issues such as amine blush, formation of exudates, or other chemistry issues and the procedures to be followed to avoid application or curing failures.

B. Two labor days to observe the initial coating applications and make recommendations to the coating applicators regarding any revisions to the coating application procedures.

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C. Additional labor days as required by the City to resolve problems related to the coating system or the application of the system

1.08 QUALITY CONTROL

A. The Contractor shall notify the City in advance (48 hours minimum) of all surface preparation or paint application in order to perform a preliminary examination and provide acceptance of the surface preparation and each coat prior to application of the next coat.

B. The Owner's Representative will examine all materials, tools, and equipment to be used in the blasting and coating operations and shall have the authority to direct the Contractor to remove, replace, or repair any materials, tools, or equipment found not to be in conformance with the Contract Documents including the approved shop drawings and manufacturer’s recommendations.