TECHNICAL SPECIFICATION PROJECT Tank Painting.pdf · technical specification project ... re-coating inside of tank structure #2 specification no 09902 april 30, ... c. sspc-ab-2 (specification

Request for Bid 2015-20

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TECHNICAL SPECIFICATION

PROJECT

PICKENS COUNTY 18-UPPER WASTEWATER TREATMENT PLANT

RE-COATING INSIDE OF TANK STRUCTURE #2

SPECIFICATION NO 09902

April 30, 2015

COUNTY OF PICKENS

PICKENS COUNTY PUBLIC SERVICE COMMISSION

151 CLEARWATER DRIVE

LIBERTY, SOUTH CAROLINA 29657

MR. BRIAN O’KELLEY

[email protected]

(864) 843-5808

(864) 843-5818 (fax)

\Director\Capital Projects\Tank Painting\Repainting of 18-Upper Tank #2

mailto:[email protected]


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PAINTING 18-MILE UPPER WWTF, TANK #2

PICKENS COUNTY, SOUTH CAROLINA

GENERAL PART 1 -

SCOPE AND SCHEDULE 1.1

The Pickens County 18-Mile Upper Wastewater Treatment Facility (WWTF) in Liberty,

South Carolina is a package wastewater treatment system consisting of a 115’ circular

tank with 16’ high walls (see Addendum A and B).

A. The work of this section includes the surface preparation and painting of all surfaces

(excluding buried, outside of tank) of the WWTP, including all painted surfaces on

the catwalk excluding galvanized surfaces, and as specified herein.

B. All surfaces are to be blasted and will receive a three-coat system (see Part 2,

Section, 2.2 and 2.3). Surfaces will also receive a stripe coat after the first coat.

C. To the best of the Owner’s knowledge, the current coating system does not contain

lead.

D. Measures may be required to control work-in-progress from affecting surrounding

properties.

E. The Contractor shall provide all materials, labor, equipment, and tools, required to

perform the work listed in these specifications, including disposal of generated waste.

Cost of work is per CONTRACT BASE BID (Pg 24) or ALTERNATE BID (Pg 25)

unless otherwise stated. The bid form utilized for the work will be selected by the

Owner at the time the tanks are emptied just prior to start-up. If the Alternate Bid is

selected, Owner will determine which areas of the tank will be painted.

F. The bids will be due May 27, 2015, at 2:00pm in Boardroom at the Administration

Office. (222 McDaniel Avenue B-4 Pickens SC 29671). Bids shall arrive in sealed

envelopes with “18-Mile Tank#2 Painting” clearly labeled on the envelope.

G. A mandatory pre-bid meeting will be held at 1:00pm, May 18, 2015, at 151

Clearwater Drive, Liberty South Carolina, 29657.

H. Bids must be accompanied with a bid bond in the amount of 5% of contractor’s bid.

I. The successful contractor will be required to submit a Pay and Performance bond in

the amount of 100% of the contract price. The bonding will reflect a warranty period

of three years. The successful contractor will also be required to supply the County

with their Certificate of Insurance document.


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J. The completion date will be October 15, 2015. (See Special Conditions C, D & E).

SPECIAL CONDITIONS 1.2

A. The 18-Mile Upper WWTP will remain in operation during painting operations. The

Contractor shall protect the portions of the WWTP remaining in service from the

entry of blasting materials, paint overspray, and other foreign materials resulting

from painting activities.

B. The Owner will have the tank prepared for the Contractor by a date to be established

after Contractor is selected, but no later than July 1, 2015, unless a later date is

requested by the Contractor.

C. The selected Bidder shall submit a milestone schedule with the Bid showing

completion by the designated completion date. The milestone schedule shall include

allowances for a reasonable number of delay days for rain, mud, and other adverse

weather conditions. The successful Bidder will be required to adhere to this schedule.

D. Liquidated damages for failure to complete the project by the deadline in Section

1.1.E. shall be $250.00 per day.

E. Pre-Construction Meeting

1. Owner will schedule and conduct a Pre-Construction Meeting at the site prior to

beginning site work. Prior to scheduling the meeting, all required pre-application

submittals shall be reviewed by the Owner. Attendance at the meeting is required

by the Contractor's Supervisor and Owner (Owner’s representatives).

2. The objective of this meeting is to confirm agreement between the Contractor,

Owner that the Contractor's plan for execution of the work satisfies the

specifications and Owner’s operational schedule. In the meeting, the Contractor

shall outline materials, equipment, personnel, material storage, work methods,

work sequence, protective measures, and schedule.

3. After concurrence by all parties attending the meeting that the Contractor's plan

satisfies the requirements of the specifications, the Owner will prepare Meeting

Minutes and submit them to all attendees. Work may proceed after all attendees

concur with the Meeting Minutes. Draft Meeting Minutes may be submitted at

the meeting for discussion with all replies submitted within 48 hours of the

meeting.

F. Pre-Coating Application Submittals

1. Two (2) days prior to the Pre-Construction Meeting, and prior to mobilization to

the site, the Contractor shall submit the following items:


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a. Proposed Coating: Submit three copies of the proposed coating color along

with manufacturer's standard application data sheets and instructions to the

Owner for approval. The data sheets must include the coating manufacturer’s

recommended coating thickness. For more information, see Part 2, Section

2.1, 2.2 and 2.3 of this specification.

b. Materials List: Submit list of materials and color samples of paint systems to

be used. Finish coat color shall be selected by the Owner from color charts

provided by the Contractor.

c. Abrasives: Submit information on the abrasive being used, including abrasive

type, size, and the resulting profile of the abrasive.

d. A written plan of action concerning how welding repair damage, abrasive

and/or paint damage to automobiles and property will be handled. The plan

shall include a process for quick removal of the abrasive or paint and shall

indicate who will perform the removal work.

e. Anticipated Work Schedule bar chart will include the following activities:

1) Site mobilization

2) Blasting and priming operations

3) Intermediate coat application

4) Finish coat application

5) Site demobilization

f. A letter from the paint Manufacturer stating that:

1) The Contractor is qualified and acceptable to the Manufacturer to apply

the paint system

2) The coatings comply with specification requirements, and

3) The coatings are suitable for the intended application.

g. List of certified welders for this project with a copy of associated welder

certifications.

h. List of all workers that will be on-site with a copy of their driver’s license or

employee number.

G. Pickens County reserves the right to waive technicalities and reject any or all bids.

1.3 REFERENCE SPECIFICATIONS AND STANDARDS

A. Without limiting the general aspects of other requirements of these specifications, all

surface preparation, coating and painting of surfaces shall conform to the applicable

requirements of the Society for Protective Coatings and the manufacturer's printed

instructions. These requirements include, but are not limited to:

1. American Society for Testing and materials (ASTM):


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a. ASTM D 3359 “Standard Test Methods for Measuring Adhesion by Tape

Test”

b. ASTM D4285 “Blotter Test”

c. ASTM D4417 Method C “Field Measurement of Surface Profile of Blast

Cleaned Steel”

2. Society for Protective Coatings (SSPC):

a. Society for Protective Coatings Painting Manual, Volume 1, “Good Painting

Practice”

b. Society for Protective Coatings Painting Manual, Volume 2, “Systems and

Specifications”

c. SSPC-AB-2 (Specification for Cleanliness of recycled Ferrous Metallic

Abrasives)

d. SSPC-PA-1 (Shop, Field, and Maintenance Painting of Steel)

e. SSPC-PA-2 (Measurement of Dry Film Thickness with Magnetic Gages)

f. SSPC-SP-1 (Solvent Cleaning)

g. SSPC-SP-10 (Near-White Blast Cleaning)

h. SSPC-SP-11 (Power Tool Cleaning to Bare Metal)

i. SSPC-VIS 1 (Visual Standard for Abrasive Blast Cleaned Steel)

j. SSPC-VIS-2 (Standard Method of Evaluating Degree of Rusting on Painted

Steel Surfaces)

B. The Owner's decision shall be final on the interpretation of discrepancies or conflicts

between any of the referenced specifications and standards contained herein.

CONTRACTOR 1.4

A. The Contractor shall hold a current SSPC QP-1 certification and shall have five years

practical experience and successful history in the application of specified products in

similar projects.

B. The Contractor shall furnish with the Bid a list of references and similar jobs

completed within the last five years.

C. The Contractor shall provide a letter from the manufacturer stating their acceptance

of the Contractor for this project to apply these products.

D. The Contractor shall possess the applicable license to perform the work as herein

described and as specified by local, state and federal laws.

E. The Contractor's licenses shall be provided at attachments in the cover letter of the

bid.


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F. Welders (if applicable) shall be certified in accordance with AWS D1.1 Structural

Welding Code.

G. The Contractor shall provide a site mock up with each paint system as a

representative of how the systems shall be installed and their final appearance, which

is to be approved by the Owner before any work is started.

1. For overcoat projects this mock up shall be used to test for adequate adhesion.

2. This approved mock up shall be the quality standard for the rest of the project.

1.5 QUALITY ASSURANCE

A. General

1. Quality assurance procedures and practices shall be utilized to monitor all

phases of surface preparation, application, and inspection throughout the

duration of the project.

2. Procedures or practices not specifically defined herein may be utilized

provided they meet recognized and accepted professional standards and are

approved by the Owner.

B. Surface Preparation

1. Surface preparation will be based upon comparison with "Pictorial Surface

Preparation Standards for Painting Steel Surfaces", SSPC-Vis-1 and ASTM

Designation D2200; "Standard Methods of Evaluating Degree of Rusting on

Painted Steel Surfaces" SSPC-Vis-2 and ASTM Designation D610; "Visual

Standard for Surfaces of New Steel Airblast Cleaned with Sand Abrasive" or

“Guideline for Selecting and Specifying Concrete Surface Preparation for

Sealers, Coatiing and and Polymer Overlays” and ICRI CSP Surface Profile

Chips.

C. Application

1. No coating or paint shall be applied when the surrounding air temperature or

the temperature of the surface to be coated is below the minimum required

temperature for the specified product; to wet or damp surfaces or in fog or

mist; when the temperature is less than 5 degrees F. above the dewpoint;

when the air temperature is expected to drop below 40 degrees F. within six

hours after application of coating, or when the relative humidity is greater

than 85%.

2. Dewpoint shall be measured by use of an instrument such as a Sling

Psychrometer in conjunction with U.S. Department of Commerce Weather

Bureau Psychrometric Tables.


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3. If above conditions are prevalent, coating or painting shall be delayed or

postponed until conditions are favorable.

4. The day's coating or painting shall be completed in time to permit the film

sufficient drying time prior to damage by atmospheric conditions.

D. Thickness and Holiday Checking

1. Thickness of coatings and paint shall be checked by the Contractor in the

presence of the Owner with a non-destructive, magnetic type thickness gauge.

2. The integrity of coated interior surfaces shall be tested with an approved

inspection device.

3. Non-destructive holiday detectors shall not exceed the voltage recommended

by the manufacturer of the coating system.

4. For thicknesses between 10 and 20 mils (250 microns and 500 microns), a

non-sudsing type wetting agent, such as Kodak Photo-Flo, may be added to

the water prior to wetting the detector sponge.

5. All holidays (pinholes) shall be marked, repaired in accordance with the

manufacturer's printed recommendations, and retested.

6. No pinholes or other irregularities will be permitted in the final coating.

E. Inspection Devices

1. The Contractor shall furnish, until final acceptance of coating and painting,

inspection devices in good working condition for detection of holidays and

measurement of dry-film thickness of coating and paint.

2. The contractor shall also furnish U.S. Department of Commerce; National

Bureau of Standard certified thickness calibration plates to test accuracy of

dry film thickness gauges and certified instrumentation to test accuracy of

holiday detectors.

3. All necessary testing equipment shall be made available for the Owner’s use

at all times until final acceptance of application. Holiday detection devices

shall be operated in the presence of the Owner.

F. Hold Point Inspections at intermediate points in the prep/paint process: before

surface prep; after blast and before primer; after primer and before intermediate

coat; after intermediate coat and before topcoat; after topcoat.

1. The coating manufacture technical representative shall visit the job site to

support the Contractor’s personnel and Owner or Owner’s Representative as

needed and/or requested.


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2. Visits shall be made on a weekly basis as a minimum or as needed to review

hold points for the Owner or Owner’s Representative.

3. Additional visits shall be made as needed and/or requested by Owner or

Owner’s Representative or contractor.

4. 48 hours’ notice is required by the Contractor for each hold point inspection.

5. Hold point includes the interior and exterior surface prep and the application

of each coat.

SAFETY AND HEALTH REQUIREMENTS 1.6

A. General

The Contractor is solely responsible for jobsite safety. In accordance with the

requirements set forth by regulatory agencies applicable to the construction

industry, the manufacturer's printed instructions, MSDSs, and appropriate

technical bulletins and manuals, the Contractor shall provide and require the use

of personnel protective equipment for persons working on or about the project

site.

B. Head and Face Protection and Respiratory Devices

1. Equipment shall include protective helmets, which shall be worn by all

persons while in the vicinity of the work.

2. In addition, workers engaged in or near the work during sandblasting shall

wear eye and face protection devices and air purifying halfmask or

mouthpiece respirators with appropriate filters.

3. Barrier creams shall be used on any exposed areas of skin.

C. Ventilation

1. Where ventilation is used to control hazardous exposure, all equipment shall

be explosion-proof.

2. Ventilation shall reduce the concentration of air contaminant to the degree a

hazard does not exist.

3. Air circulation and exhausting of solvent vapors shall be continued until

coatings have fully cured.

D. Sound Levels


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1. Whenever the occupational noise exposure exceeds maximum allowable

sound levels, the Contractor shall provide and require the use of approved ear

protective devices.

E. Illumination

1. Adequate illumination shall be provided while work is in progress, including

explosion-proof lights and electrical equipment.

2. Whenever required by the Owner, the Contractor shall provide additional

illumination and necessary supports to cover all areas to be inspected.

3. The Owner shall determine the level of illumination for inspection purposes.

F. Confined Space

1. When applicable it is mandatory that all work be performed in compliance

with OSHA'S rules and regulations for working in confined space.

2. Atmospheres within confined spaces as defined by the Occupational Safety

and Health Administration are classified as being either a Class A, Class B or

Class C environment.

PRODUCTS PART 2 -

GENERAL 2.1

A. All coating systems shall be provided by a single manufacturer.

B. Materials specified are those that have been evaluated for the specific service.

C. Products of the Tnemec Co. are listed to establish a standard of quality. Equivalent

materials of other manufacturers may be substituted on written approval of the

Owner.

D. Requests for substitution shall include manufacturer's literature for each product

giving the name' product number, generic type, descriptive information, solids by

volume, recommended dry film thickness and certified independent lab test reports

showing results to equal the performance criteria of the products specified herein.

All coating systems shall meet U. S. EPA VOC limits.

E. No request for substitution shall be considered that will decrease film thickness or

offer a change in the generic type of coatings specified.

F. In addition, a list of five similar projects shall be submitted in which each product

has been used and rendered satisfactory service.


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G. Requests for product substitution shall be made at least ten (10) days prior to bid

date.

H. Manufacturer's color charts shall be submitted to the engineer at least 30 days prior to

paint application.

I. General contractor and painting contractor shall coordinate work so as to allow

sufficient time (five to ten days) for paint to be delivered to the jobsite.

J. All materials shall be new and shall be delivered to the jobsite in original, sealed

containers with labels clearly identifying the following information:

1. Manufacturer’s name

2. Type of material

3. Manufacturer’s batch numbers

4. Date of manufacture

5. Color name and number

6. Instructions for storage, application, mixing, thickness and reducing (where

applicable).

7. MSDS sheets

K. Materials shall not be used until the Owner has inspected contents and obtained data

from information on containers or labels.

L. Materials exceeding storage life recommended by the manufacturer shall be rejected.

M. All coatings and paints shall be stored in an area designated by the Owner in

enclosed structures to protect them from weather and excessive heat or cold. All

costs associated with the storage of materials will be the responsibility of the

Contractor.

N. Flammable coatings or paint must be stored, handled and used in accordance with

manufacturers’ published product data, including all requirements listed on the

Material Safety Data Sheets (MSDS), and in accordance with applicable County,

State and Federal safety codes for flammable coating or paint materials.

O. At all times, coating and paints shall be protected from freezing and maintained at

proper storage temperatures.

P. Material Safety Data Sheets:

1. Material Safety Data Sheets (MSDS) shall be maintained at the job site for each

chemical product on the job site, including but not limited to coatings, thinners,

solvents, cleaning agents, abrasives, welding materials, and flexible sealant

material


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2. The Contractor and the Owner shall exchange MSDS of any hazardous chemicals

that are or will be stored at the Project site. The Contractor and the Owner shall

each appoint an individual who shall be responsible for overseeing the proper

exchange of information regarding toxic chemicals, potential hazards, safe

procedures, and proper protective equipment, etc.

INTERIOR STEEL SURFACES OF THE WASTEWATER TREATMENT 2.2

PLANT COATING:

Surface Preparation: SSPC-SP10/NACE 2 Near White Metal Blast Cleaning. All

unwelded seams will be filled. The surface shall be clean and dry before painting.

1st Coat: Zinc Rich Aromatic Urethane applied at 2.5 – 3.5 dry mils

(performance equal to Tnemec Series 1 Omnithane)

Stripe Coat: Polyamidoamine Epoxy applied at 3.0 – 5.0 dry mils

(performance equal to Tnemec Series N69 Hi-Build Epoxoline II)

2nd

Coat: Polyamidoamine Epoxy applied at 6.0 – 8.0 dry mils

(performance equal to Tnemec Series N69 Hi-Build Epoxoline II )

3rd


(performance equal to Tnemec Series N69 Hi-Build Epoxoline II)

EXTERIOR STEEL SURFACES OF THE WASTEWATER TREATMENT 2.3

PLANT COATING:

Surface Preparation: SSPC-SP6/NACE 3 Commercial Blast Cleaning. The surface shall

be clean and dry before painting.

1st Coat: Zinc Rich Aromatic Urethane applied at 2.5 – 3.5 dry mils

(performance equal to Tnemec Series 1 Omnithane)

2nd


(performance equal to Tnemec Series N69 Hi-Build Epoxoline II )

3rd

Coat: Aliphatic Acrylic Polyurethane applied at 3.0 – 5.0 dry mils

(performance equal to Tnemec Series 73 Endura Shield)

WELDMENT MATERIALS 2.4

A. Welding filler materials shall be compatible with base metal.


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EXECUTION PART 3 -

GENERAL 3.1

A. Daily Operations:

1. The Contractor shall cooperate with the Owner, who may be conducting

work in or around the work areas.

B. Work Schedule:

1. The Contractor is responsible for maintaining a crew sufficient to

accomplish the work within the time and the number of days in the Work

Schedule submitted.

2. Work is to take place Monday through Friday between 7 AM and 7 PM.

3. Work may only be done during daylight hours.

4. Work should not be scheduled for weekends or on days noted in special

provisions as holidays for the Owner.

5. Should the Contractor wish to have extended hours or days to work, the

request shall be made in writing to the Owner. The letter should state the

work to be performed and the number of employees to be on site.

6. The Contractor will update the Work Schedule and submit the updated

schedule with each payment application.

C. No work shall start until this specification and the coating manufacturer’s product

data sheets are in the possession of the Contractor’s on-site Supervisor.

D. All surface preparation, coating and painting shall conform to applicable

standards of the Society for Protective Coatings, and the manufacturer's printed

instructions.

E. Material applied prior to approval of the surface by the Owner shall be

removed and reapplied to the satisfaction of the Owner at the expense of the

Contractor.

F. All work shall be performed by skilled craftsmen qualified to perform the

required work in a manner comparable with the best standards of practice.

G. Continuity of personnel shall be maintained and transfers of key personnel shall

be coordinated with the Owner.

H. The Contractor shall provide an English speaking supervisor at the work site

during cleaning and application operations.


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I. The supervisor shall have the authority of sign change orders, coordinate work,

and make decisions pertaining to the fulfillment of the contract.

J. Dust, dirt, oil, grease or any foreign matter that will affect the adhesion or

durability of the finish must be removed by washing with clean rags dipped in an

approved cleaning solvent and wiped dry with clean rags.

K. The Contractor's coating and painting equipment shall be designed for application

of materials specified and shall be maintained in first class working condition.

L. Compressors shall have suitable traps and filters to remove water and oils from

the air. Contractor's equipment shall be subject to approval of the Owner.

M. Application of the first coat shall follow immediately after surface preparation

and cleaning and before rust bloom or flash rusting occurs.

N. Any cleaned areas not receiving first coat within this period shall be recleaned

prior to application of first coat.

SAFETY REQUIREMENTS 3.2

A. Rigging

1. Should vents, holes, rigging attachments or any other modification,

cutting, or welding be required to meet safety standards or otherwise

accomplish the work, they may be accomplished at the expense and

responsibility of the Contractor. Details of any temporary modifications

to the tank must be submitted in writing to the Owner for approval. All

modifications will be restored to original condition and coated in

accordance with these specifications.

2. All rigging attachments presently in the tanks shall be carefully evaluated

by the Contractor immediately prior to use for the type and loads which

Contractor intends to impose on them. The Contractor assumes all

responsibility for the use of any existing or added attachments.

B. Electrical

1. The Contractor shall coordinate activation/deactivation and lock out of the

Owner's electrical service. Owner shall be given 72-hour notice.

2. The Contractor shall verify the deactivated status of the electric service in

the work area prior to beginning each day's work functions and

throughout the work day.

3. The Contractor shall be aware of the electric service wiring attached to

and located adjacent to the work area.


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4. The Contractor shall verify that there is sufficient electric shock hazard

protection for the workers and equipment prior to and throughout each

working period on the job. The verification of electric shock hazard

protection is the sole responsibility of the Contractor.

C. Containing Cleaning Debris and Overspray

1. The Contractor shall ensure no cleaning/blasting debris, overspray or

coating droplets escape to the atmosphere or exceed the physical

boundary of the site.

2. The Owner reserves the right to stop work or to require additional or

different methods, if, in the sole opinion of the Owner, the Contractor’s

operations create a hazard or nuisance beyond the site boundary.

3. All costs of providing adequate confinement of debris and paint to the

work area shall be included in the Bid.

4. Should debris from blasting/painting cause plumbing problems for

WWTF operations, the cost of plumbing services will be deducted from

the compensation to the Contractor.

D. Public Safety and Cleanup

1. Secure work areas to prevent unauthorized entry to the work area by the

public.

2. The job site shall be kept clean, safe, and secure at all times. Hazards or

visible attractive nuisances shall be protected at all times.

3. The cost of any clean up performed by the Owner, including oils,

solvents, organic compounds, or contaminants (including contaminated

ground), due to the Contractor's non-performance shall be deducted from

compensation due the Contractor.

4. Impervious drip pans or double layers of plastic (each at least 6 mils

thick) shall be placed under any compressor, paint pumps, mixers,

welding machines, etc. to prevent oils, solvents, organic compounds, or

other contaminants from leaching into the ground or non-work areas. Any

oils, solvents, organic compounds or contaminants spilled on the site

during the process of the Work shall be immediately removed and cleaned

up by the Contractor.

E. Temporary Ladders and Scaffolding: All temporary ladders and scaffolding

shall conform to applicable safety requirements.


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F. Grounding: Blasting and painting hoses shall be grounded to prevent

accumulation of static electricity.

G. Eye Wash Station: Where eyes may be exposed to injurious materials, suitable

facilities for quick drenching or flushing of the eyes shall be provided within the

work area.

H. Project Information: The Contractor shall construct a standard 4’ x 4’ sign at

tank site for displaying Project information. The Contractor shall post all

construction permits, company name and address, site supervisor name and

contact phone number.

I. Emergency Information: On the 4’ x 4’ sign, the Contractor shall post

information concerning emergency medical, fire and rescue phone numbers from

which personnel on the site can obtain information if needed. The emergency

information shall be in a central position, located so it is visible and accessible 24

hours a day. The emergency information shall be posted the entire length of time

the Contractor is performing Work at each tank site.

J. MSDS: All Material Safety Data Sheets (MSDS) shall be posted at the job site

for each chemical product on the site, including but not limited to coatings,

thinners, other solvents, disinfecting agents, abrasives and welding materials.

ACCESS 3.3

A. Provide safe and convenient access necessary to perform and inspect the work.

B. Access shall comply with requirements set forth by regulatory agencies and

herein.

C. Any attachments added to the tank for rigging, containment and/or work-in-

process or using structural items on the tank for rigging, containment and/or

work-in-process shall be at the Contractor's risk and shall be restored to the

original condition at the completion of the work

D. During non-working hours the site and equipment related to the work-in-process

shall be secured.

INSPECTION 3.4

The reference to Owner includes an Owner’s representative (e.g., Engineer, Inspector, or

Consultant) to represent the Owner and to perform part-time observation of the repairs,

surface preparation and coating application. The Contractor shall notify and make

available to the Owner for observation the fit-up of any new and/or replacement parts

prior to welding and following post-weld cleanup. The Contractor shall notify and make

available to the Owner for observation all surfaces prior to coating. The Owner shall

prepare inspection reports after each visit. The reports will be distributed to the

Contractor.


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FIELD QUALITY CONTROL 3.5

A. The Contractor’s Supervisor shall inspect, document, and report daily to the

Owner any surfaces that are discovered during rigging or blasting operations that

may require repair or adversely affect the structure or performance of the coating

being applied.

B. Unscheduled Repairs

1. Unscheduled repairs that have not been identified during previous

inspections will be identified by the Contractor during the course of the

work and are to be paid for on a Unit Rate basis in accordance with the

Bid Form. Unscheduled Repair quantities shall be measured each day and

documented in the Contractor's daily report. No payment will be made

for Unscheduled Repairs that are not documented in the Contractor's

Daily Report.

2. The following types of Unscheduled Repairs are anticipated:

a. Pit Filling and Surfacing

1) After an area of metal is abrasive blasted clean any rough areas or

seams marked for pit filling or surfacing by the Owner shall be

filled with epoxy compound of the type recommended by the

supplier of the paint system.

2) The epoxy-fairing compound shall be applied neatly and smoothly

to the substrate surface. Any rough areas of the epoxy fairing

compound seam repairs shall be smoothed prior to the application

of the coating system.

3) Pit filling and surfacing shall be paid by the gallon of filler at the

unit price in Bid Item #1.

b. Pit Welding:

1) After an area of metal is abrasive blast cleaned any area that is

marked by the Owner shall be welded.

2) Pit welding shall be paid for per hour at the unit price in Bid Item

#2.

c. Seam Welding

1) After an area of steel is abrasive-blast cleaned all apparent seam

deterioration shall be inspected for corrosion and if marked by the

Owner shall be welded.


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2) Seams welding shall be paid for per liner foot of weld at the unit

price in Bid Item #3.

d. Chipping and/or Grinding:

1) Any irregular surfaces marked by the Owner, including but not

limited to surface protrusions, burrs, sharp edges and existing

rough weld beads shall be removed.

2) The objective of chipping and/or grinding is to eliminate irregular

surfaces to provide a surface that is sufficiently smooth for the

application of a uniform thickness coating without voids and free

from defects.

3) Chipping and/or grinding shall be paid for by the hour at the unit

price in Bid Item #4.

e. Sika Flex 1A:

1) Any back-to-back angles or concrete to shell interface that has be

identified by the Owners representative will be paid for by the

tube at the unit price in Bid Item #5.

SURFACE PREPARATION 3.6

A. The latest revision of the following surface preparation specifications of the

Society for Protective Coatings shall form a part of this specification.

B. Solvent Cleaning (SSPC-SP1)

1. Removal of oil, grease, soil and other contaminants by use of solvents,

emulsions, cleaning compounds, steam cleaning or similar materials and

methods which involve a solvent or cleaning action.

C. Commercial Blast Cleaning (SSPC-SP6/NACE 3)

1. Blast cleaning until at least 66 percent of each element of surface area is

free of all visible residues.

D. Near White Blast Cleaning (SSPC-SP10/NACE 2)

1. Blast cleaning to nearly white metal cleanliness, until at least 95 percent

of each element of surface area is free of all visible residues.

E. Power Tool Cleaning to Bare Metal (SSPC-SP11)


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1. This standard covers the requirements for power tool cleaning to produce

a bare metal surface and to retain or produce a minimum 25 micrometer

(1.0 mil) surface profile.

2. This standard is suitable where a roughened, clean, bare metal surface is

required, but where abrasive blasting is not feasible or permissible.

F. Inspect substrate condition of areas to be prepared and report any condition

which may affect surface preparation prior to starting work.

G. Substrates with low blasting tolerance and substrate integrity (insulation, PVC,

cables, wires, etc.) shall be protected during blasting. Any damage caused by

blasting shall be repaired or replaced to existing condition or better at no cost to

the Owner.

H. Blast cleaning for all surfaces shall be by dry method unless otherwise directed.

I. Particle size of abrasives used in blast cleaning shall be that which will produce a

1.5 – 2.0 mil (37.5 microns - 50.0- microns) surface profile or in accordance with

recommendations of the manufacturer of the specified coating or paint system to

be applied.

J. Abrasive used in blast cleaning operations shall be new, washed, graded and free

of contaminants that would interfere with adhesion of coating or paint and shall

not be reused unless specifically approved by the Owner.

K. During blast cleaning operations, caution shall be exercised to insure that

surrounding existing coatings or paint are not exposed to abrasion from blast

cleaning.

L. The Contractor shall keep the area of his work and the surrounding environment

in a clean condition.

M. The Contractor shall not permit blasting materials to accumulate as to constitute a

nuisance or hazard to the accomplishment of the work, the operation of the

existing facilities, or nuisance to the surrounding environment.

N. Blast cleaned surfaces shall be cleaned prior to application of specified coatings

or paint.

O. No coatings or paint shall be applied over damp or moist surfaces.

P. Specific Surface Preparation: Surface preparation for the specific system shall be

as noted in Section 2.2.

Q. The air supplied to the blast hose and blow down hose will be tested daily for oil,

moisture and other contaminants by the ASTM D4285 “Blotter Test” method. If


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contaminants are found, resolve the problem prior to start of work. Periodically

drain traps and separators.

APPLICATION, GENERAL 3.7

A. Coating and paint application shall conform to the requirements of the Society for

Protective Coatings Paint Application Specification SSPC-PA1, latest revision,

for "Shop, Field and Maintenance Painting,” and the manufacturer of the coating

and paint materials.

B. Thinning shall be permitted only as recommended, in writing, by the coatings

manufacturer, approved by the Owner.

C. Each application of coating or paint shall be applied evenly, free of brush marks,

sags, runs, with no evidence of poor workmanship.

D. Care shall be exercised to avoid lapping on glass or hardware.

E. Coatings and paints shall be sharply cut to lines. Finished surfaces shall be free

from defects or blemishes.

F. Protective coverings or drop cloths shall be used to protect floors, fixtures, and

equipment.

G. Care shall be exercised to prevent coatings or paint from being spattered onto

surfaces that are not to be coated or painted.

H. Surfaces from which materials cannot be removed satisfactorily shall be recoated

or repainted as required to produce a finish satisfactory to the Owner.

I. When two coats of coating or paint are specified, the two coats must be of

contrasting color.

J. Visual detection of the underlying coat is not acceptable. Additional material

shall be applied as required to visually cover the underlying coat at no additional

cost to the Owner.

K. Film thickness per coat specified in Section 2.2 is the minimum requirement.

L. If roller application is deemed necessary, the Contractor shall apply additional

coats as to achieve the specified thickness.

M. All material shall be applied as specified.

N. All welds, edges and other irregular surfaces shall receive a brush coat of the

specified product prior to application of the first complete coat.

COATING SYSTEMS APPLICATION 3.8


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A. After completion of surface preparation as specified for the specific system,

materials shall be applied as noted in Section 2.2.

B. Thickness

1. The coating thickness of each coating is essential to the system’s

integrity. 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.

2. When undercoats or other conditions show through the final coat,

additional coats shall be applied until the coating film is of uniform finish,

color, and appearance, regardless of thickness.

3. Dry mil thickness greater than 20% of the coating manufacturer's

maximum allowable thickness, with poor application appearance as

determined by the Owner, will be considered unacceptable and shall be

removed by the Contractor at no additional cost to the Owner.

4. Application of the coating shall provide a tight film of specified uniform

thickness, well bonded to the substrates or underlying coat. This is to

include crevices and corners. The coating shall be free from runs, sags,

dry spray, over spray pinholes, excessive roller nap, skips, excessive film

build-up, mud cracking or other irregularities.

5. Primer coat shall have sufficient thickness to cover anchor profile.

6. Coating thickness measurements will be in accordance with SSPC-PA-2.

However, no spot measurement reading lower than the minimum

thickness will be allowed.

7. Coating thickness in excess of 20% over maximum dry film thickness is

acceptable provided it is isolated and the coating is uniform in

appearance.

8. Low film thickness shall be corrected by the application of an additional

coat or coats of the same material, at no additional cost to the Owner.

C. Stripe Coat: After primer coat has been applied and prior to full intermediate

coat, brush or roll intermediate coat thinned at least 5 percent on bolts, nuts,

edges, welds, seams, steel to steel interface and any irregular surfaces, to cover

visible voids in coatings.

D. Any blasted spot repairs shall have the coating around the repair areas feathered

back to remove loose coating and to give a uniform appearance. The spot repair

areas shall meet the same blast and coating application requirements as the rest of

the structure.


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E. All containment/rigging attachment points shall be ground flush when removed

and shall meet SSPC-SP-11 (Power Tool Cleaning to Bare Metal) surface

preparation prior to priming.

COLOR SCHEME 3.9

A. Color(s) submittals will be made to the Owner for approval prior to application.

SURFACE CONDITIONS 3.10

A. The surfaces to be painted shall be free from dirt, dust, moisture, oxides, and

other contaminates which would cause adhesion or other problems in the finished

product.

B. The manufacturer's published product data concerning the time between coats

and the preparation of the previously painted surfaces shall be followed.

C. If questionable contaminants or adhesion properties are identified by the Owner,

then a representative of the paint manufacturer may be called to examine the

surfaces in question and determine if the surface is acceptable. Areas of concern

and adjacent areas may be tested using ASTM D 3359-97 “Standard Test

Methods for Measuring Adhesion by Tape Test” or other approved destructive

methods.

D. All surfaces in question shall be repaired by the Contractor at no additional

charge to the Owner. Final acceptance will be based on the test acceptance

criteria of the coating manufacturer.

SCHEDULE OF COATING APPLICATION 3.11

A. The work areas which have been blasted and received any coating shall be

protected as not to have ongoing blasting and painting operation affect previously

prepared surfaces.

B. The primer shall not be applied on a non-prepared surface. Previous blasted and

primed surfaces shall be tied in by blasting 2-inches into primed area.

C. In a three-coat system, the topcoat shall not be applied over the primer and the

intermediate coat shall not be applied over an unprepared substrate.

PROTECTION 3.12

A. Protect structures, antenna, cable, or other items not to be coated against

disfigurement by splatters, splashes, and overspray, of paint or paint material.

Repair any damage or disfigurement to the original condition.


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B. Protect pedestrians, vehicles, cargo, plants, and animals from errant materials

associated with the work.

C. Repair procedures for any damage or disfigurement shall be prepared by the

Contractor and submitted to the Owner for approval.

D. Protect existing antenna, cable, and attachment points from mechanical damage.

MIXING 3.13

A. Each component shall be mixed in accordance with coating manufacturer’s

material data sheet instructions.

B. Mix components separately prior to combining using power agitation to insure all

solids are removed from the bottom of the container.

C. Power agitate all components after combining in clean containers.

D. Power agitate components after addition of thinner.

E. Items such as continuous agitation, sweat-in time, screening material, surface

temperature requirements, application equipment requirements and material

temperature requirements shall be adhered to and should be located on material

data sheet. No partial kit mixing will be allowed unless proper measuring devices

are on site and permission is given from the paint manufacturer’s representative.

DRYING 3.14

A. Maintain temperatures as required by the manufacturer while the paint is being

applied and until it has dried to a point that air ambient temperature will not

adversely affect the coating.

RECOAT TIME 3.15

A. Do not apply next coat of paint until each coat is dry. The manufacturer's

recommended drying time shall mean an interval under normal conditions to be

increased to allow for adverse weather or drying conditions. Additional time may

be necessary for drying if ventilation or other conditions are not favorable for

drying.

B. Testing the coated surface for recoatability may be required, by means of solvent

rub, coin hardness or pencil hardness.

SOLVENT VAPOR REMOVAL 3.16

A. Where appropriate all solvent vapors shall be completely removed by suction-type

exhaust fans and blowers before placing in operating service.


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CLEAN UP 3.17

A. Upon completion of the work, all staging, scaffolding, and containers shall be

removed from the site or destroyed in a manner approved by the Owner.

B. Coating or paint spots and oil or stains upon adjacent surfaces shall be removed

and the jobsite cleaned.

C. All damage to surfaces resulting from the work of this section shall be cleaned,

repaired, or refinished to the satisfaction of the Owner at no cost to the Owner.

D. At job completion, all materials shall be removed by the Contractor so that

equipment may receive wastewater. All tankage and piping shall be void of

debris from painting activity. Any repairs or cleanup performed by the Owner

will be passed along to the Contractor at standard third party rates.

WARRANTY 3.18

A. The Contractor shall warrant the work free of defects in material and

workmanship for a period of three years from the acceptance of the work.

B. Warranty inspections will occur during the seasonal draining of the WWTF

Digester (summer). Owner will not be required to completely drain the tanks for

inspection/warranty repairs. Owner may leave up to 18 inches of refuse in the

tanks for the inspection/warranty repairs. Contractor shall return for an

anniversary inspection of the work. Owner shall attend each inspection.

C. During the period when the tank has been drained for inspection, all coating

repairs are to be made during this site visit. Contractor shall wash out the clarifier

prior to inspection. The cost of this work shall be included in the Contract Base

Bid.

D. The purpose of the inspection is to visually identify any areas that have

deteriorated (flaking, peeling, blistering, or rusting). The Owner will prepare a

report documenting any visually identified areas of deterioration.

E. The Contractor shall correct any deficiencies found at no cost to the Owner.

END SECTION


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SURFACE PREPARATION, AND RECOATING PICKENS COUNTY 18-MILE UPPER WWTF TANK #2 PACKAGE TREATMENT PLANT (INTERIOR ONLY)

CONTRACT BASE BID AND SCHEDULE OF VALUES

Item

No.

Description Unit of Measure Quantity Unit

Price

Total Price

1 Mobilization/Demob Lump Sum 1

2 Base Bid Lump Sum 1

Contract Base

Bid

UNIT PRICE LIST FOR UNSCHEDULED REPAIRS

Contract Base Bid:________________________________ ($_________) (in words) (in numerals)

Corporation Name:__________________________________________(SEAL)

Signature:_______________________________________________________

Name (typed or printed)____________________________________________

Title: __________________________________________________________

Attest: _________________________________________________________

Item Number

Description Unit of Measure

Estimated Quantity

(office use only)

Unit Price

1 Pit Filling per gallon 1

2 Pit welding per hour 40

3 Seam welding per liner foot 40

4 Chipping & grinding per hour 15

5 Sika Flex 1A per tube 30


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SURFACE PREPARATION, AND RECOATING PICKENS COUNTY 18-MILE UPPER WWTF TANK #2 PACKAGE TREATMENT PLANT (INTERIOR ONLY)

ALTERNATE BID AND SCHEDULE OF VALUES

Item

No.

Description Unit of

Measure

Quantity Unit

Price

Total Price

1 Mobilization Lump Sum 1

2 Outside Wall (flat steel) Sq Ft 5,780

3 Headwall (ribs/I-beams) Sq Ft 1,120

4 Clarifier Outside (ribs) Sq Ft 2,262

5 Clarifier Inside (flat steel) Sq Ft 2,262

6 Launder/Beach Lin Ft 141

7 Rake Nearest 10%

8 Anoxic Zone Sq Ft 4,032

9 Piping Lin Ft 100

Alternate Bid

UNIT PRICE LIST FOR UNSCHEDULED REPAIRS

Contract Base Bid:________________________________ ($_________) (in words) (in numerals)

Corporation Name:__________________________________________(SEAL)

Signature:_______________________________________________________

Name (typed or printed)____________________________________________

Title: __________________________________________________________

Attest: _________________________________________________________

Item Number

Description Unit of Measure

Estimated Quantity

(office use only)

Unit Price

1 Pit Filling per gallon 1

2 Pit welding per hour 40

3 Seam welding per liner foot 40

4 Chipping & grinding per hour 15

5 Sika Flex 1A per tube 30


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Addendum B – 18-Mile Upper WWTF Photos


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Documents

TECHNICAL SPECIFICATION PROJECT Tank Painting.pdf · technical specification project ... re-coating inside of tank structure #2 specification no 09902 april 30, ... c. sspc-ab-2 (specification