436 CLEANING AND PAINTING EXISTING STRUCTURAL STEEL

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436.01 DESCRIPTION
Clean and paint existing structural steel, and repair existing coatings damaged during repairs or by the Contractor’s operations. Refer to Section 435 for cleaning and painting new structural steel.
436.01.01 Definitions of Areas to be Cleaned and Painted. The following terms designate the specific areas to be cleaned and painted:
(a) All Steel Surfaces. Steel superstructure elements including but not limited to steel beams, girders, rockers, bearing assemblies, trusses, floor beams, stringers, joists, purlins, cross-bracings, lateral-bracings, diaphragms, sway-bracings, scupper downspouts, and support brackets for utilities, light poles, and sidewalks. It does not include substructure elements, railings, sign structures, utilities, or light poles.
(b) Outside Facing Surfaces of Beams. The exterior/fascia beams of the structure, including the underside of the top flange and the web facing away from the structure, the top of the bottom flange, the outside edge of the bottom flange, the underside of the bottom flange, the inside edge of the bottom flange, and a portion of the top of the bottom flange on the inside facing surface. The transition between the existing and new coating on the top of the bottom flange shall occur approximately half way between the edge of the flange and the fillet. A sharp well-defined transition between the new and existing coating is not required, but the existing coating shall be feathered. Clean and paint all attached bearings.
(c) Inside Facing Surfaces of Beams. Beams adjacent to longitudinal joints including the underside of the top flange and the web facing toward the longitudinal joint, the top of the bottom flange, the inside edge of the bottom flange, the underside of the bottom flange, the outside edge of the bottom flange, and a portion of the top of the bottom flange on the outside facing surface. The transition between the existing and new coating on the top of the bottom flange shall occur approximately half way between the edge of the flange and the fillet. A sharp well-defined transition between the new and existing coating is not required, but the existing coating shall be feathered. Clean and paint all attached bearings.
(d) Bearings and Beam Ends. Bearing assemblies and structural steel for the specified distance from the ends of the beams at the abutments, and the specified distance in each direction from the center line of the piers for a total of twice the specified distance.
(e) Roadway Joints. All roadway joint steel on the outside, top, and inside surfaces of the parapets, and from the parapet to the first pavement marking.
Clean and paint each structure using the paint system, finish coat color, and areas according to the Cleaning and Painting Table included in the Contract Documents.
436.01.02 General. Perform the work according to SSPC Standards and the manufacturer’s recommendations.
Notify the Engineer of structural defects including cracks, missing bolts or rivets, and deterioration detected during cleaning and painting.
Protect utility pipes, conductors, light fixtures, and conduits from these operations. Do not clean and paint them unless specified.
Perform Quality Control (QC) inspections to ensure that each phase of the work meets Specification requirements.
All maintenance of traffic required for corrective action shall be at no additional cost to the Administration. When a railroad is included in the project, all railroad fees shall be as specified, except that any additional impact on the railroad and associated fees due to corrective actions or additional inspections shall be at no additional cost to the Administration.
Ensure that all operations meet the requirements of OSHA, including exposure to lead, arsenic, and cadmium. Comply with 29 CFR 1926 construction standards and the applicable Federal, State, and local laws, including COMAR 26.16.01.
Existing paint systems and abrasives used for blast cleaning may include toxic metals such as lead, arsenic, cadmium, and chromium. Consider them as hazardous waste when removed, unless tests conducted as specified in the Toxicity Characteristic Leaching Procedure (TCLP), EPA Method 1311 prove otherwise.
Prior to bidding, become familiar with the current environmental regulations and safety procedures. According to EPA’s Resource Conservation and Recovery Act (RCRA) regulation, the Administration shall be considered the “Waste Generator” of the paint wastes generated by the work on existing structures.
The Contractor shall be considered the “Hazardous Waste Generator” of all other waste associated with the work. These include wastes produced such as petroleum waste, solvent related waste, unapplied waste paints, used rags, used protective clothing, and other personal protective clothing (PPE) determined to be wastes. Obtain an EPA Hazardous Waste Generator ID Number, and dispose of waste under manifest as required by RCRA (40 CFR 260 through 265, and 271.
Prevent waste from entering into the environment by containing, collecting, storing, testing, and disposing of all waste in accordance with Federal, State, and local regulations.
436.01.03 Minimum Contracting Requirements for Field Painting. Certify the Contractor/subcontractor removing or applying paint as specified in (a) below. When the paint being removed contains toxic metals, certify the Contractor/subcontractor removing the paint as specified in (b) below. All certificates shall be effective prior to Award of Contract and shall remain in effect for the duration of the Contract. Refer to 436.03.01.
(a) SSPC-QP1. Standard Procedure for Evaluating Qualifications of Painting Contractors: Field Application to Complex Structures. The Society for Protective Coatings (SSPC) QP-1 Certified Applicator Specialist (CAS) requirements are waived.
(b) SSPC-QP2, Category A. Standard Procedure for Evaluating Qualifications of Painting Contractors to Remove Hazardous Paint.
436.01.04 Definition of Bridge. The definition of the word “Bridge” as defined in TC-1.03 does not apply to this Specification. References to “Bridges” in this Specification shall mean any structure carrying traffic, regardless of their length.
436.02 MATERIALS
Paint Systems 436.02.01 and 912.05
436.02.01 Paint Systems. Provide all coats within the paint systems specified herein from the same manufacturer. When more than one paint system is used, provide all overlapping paint systems from the same manufacturer. The color of the touch up finish coat on existing steel shall match the existing finish coat. The color of the finish coat shall be as specified.
436.02.02 Abrasives. Provide material safety data sheets (MSDS) for the abrasives and a letter, from the abrasive supplier, indicating that expendable abrasives meet SSPC-AB 1 and recyclable abrasives meet SSPC-AB 3. Verify the cleanliness of recycled abrasives according to SSPC-AB 2.
436.03 CONSTRUCTION
436.03.01 Submittals. Submit the following drawings, plans, and information for accomplishing the work. Except for (e) below, submit six copies on company letterhead to the Office of Structures, Structure Inspection and Remedial Engineering Division. Do not proceed with the work until the submittals are approved by the Administration.
(a) Copy of SSPC-QP Certification. Refer to 435.01.04 for shop painting and 436.01.03 for field painting.
(b) Personnel Qualifications. Provide applicable personnel qualifications to the Project Engineer prior to using the personnel on site. Refer to 436.03.02.
(c) Quality Control (QC) Plans. Refer to 436.03.03 for detailed submittal requirements for shop and field Quality Control Plans. Send all shop QC Plan submittals to the Office of Materials Technology. Submittals shall meet 900.01 and 912.01. Submit all field QC Plans as specified in 436.03.01.
(d) Paint Manufacturer Certifications and Letters. Submit the following information as specified in 900.01 and 912.01 to the Office of Materials Technology:
(1) When detergents or additives are proposed to be incorporated into the water used for washing, provide MSDS and a letter from the coating manufacturer that approves the use of the detergents with their coating.
(2) The manufacturer shall provide a letter that approves any proposed solvents for use in solvent cleaning prior to painting or between coats. Provide MSDS for the solvents.
(3) Provide the paint manufacturer’s application and thinning instructions, MSDS, and product data sheets.
(4) When caulking is used, provide a letter from the coating manufacturer identifying the recommended caulking material, the application sequence for integrating the caulking into the coating system between Coats II and III, and the minimum cure time prior to paint application.
(5) If the only portion of bridge to be painted is the roadway joint, the paint need not be tested by the Laboratory if, prior to use, a copy of the certified test results has been furnished to the Engineer specifying that the paint conforms to Section 912.
(e) Containment Plans. Refer to 436.03.28 and 436.03.29. Make submittals as specified in Section 499.
(f) Worker Protection Compliance Program. Required when abrasive blast cleaning is conducted in the field or paint containing toxic metals is being disturbed. Refer to 436.03.31.
(g) Environmental Protection Plan of Action. Required when abrasive blast cleaning is conducted in the field or paint containing toxic metals is being disturbed. Refer to 436.03.33.
(h) Waste Handling Program. Required for the handling of all hazardous waste regardless of the presence of toxic metals. The Waste Handling Program shall also include disposal of unused paint and solvent. Refer to 436.03.36. A written program is not required for the handling of nonhazardous waste.
Do not construe approval of the submittals to imply approval of any particular method or sequence for conducting the work, or for addressing health and safety concerns. Approval of the proposed plans shall not remove the responsibility to conduct the work in accordance with Federal, State, or local regulations, this Specification, or to protect the health and safety of all workers involved in the project and any members of the public who may be affected by the project. The Contractor remains responsible for the adequacy and completeness of the programs and work practices, and adherence to them.
436.03.02 Personnel Qualifications and Responsibilities. Provide documentation that all applicable project personnel meet the training and accreditation requirements of COMAR 26.16.01.
(a) QC Inspectors. A QC inspector shall be on site full time during cleaning and painting operations. Provide documentation that personnel performing quality control related functions are experienced and qualified to perform the work, and have completed the training specified for SSPC-QP1, and when paint containing toxic metals is being disturbed, SSPC-QP2.
(b) Competent Person. A competent person as specified in SSPC-QP2 shall be on site full time when paint containing toxic metals is being disturbed. This person shall perform all quality control related functions involving the oversight of worker and environmental protection, containment performance, and waste handling. Provide documentation of qualifications, including experience and records of training as specified in SSPC-QP2. This person shall hold a current SSPC-C3 Competent Person Certificate or current C5 refresher, a certificate of completion of 29 CFR 1926.62(l) Lead in Construction Training, and shall be accredited in accordance with COMAR 26.16.01.
(c) Certified Industrial Hygienist (CIH) or Certified Safety Professional (CSP). Provide the services of a CIH or CSP when the work involves the disturbance or removal of paint containing toxic metals. Provide evidence that the CIH or CSP has the following qualifications and insurance requirements:
(1) Valid certification by the American Board of Industrial Hygiene or Board of Certified Safety Professionals.
(2) Field sampling and oversight experience involving removal of paint that contains toxic metals from structures.
(3) Errors and omissions insurance coverage of not less than $1 000 000 for the type of work specified.
All field sampling and testing shall be performed by the CIH, CSP, or by an employee working under the direct supervision of the CIH/CSP, and shall be witnessed by the Engineer. Notify the Structures Inspection and Remedial Engineering Division at least 24 hours prior to sampling and testing.
The CIH or CSP shall review all results of sampling and testing performed on the project. The CIH, CSP, or a person working under the direction of the CIH/CSP, shall prepare written reports interpreting these results for compliance to the applicable regulations. Submit a copy of all reports, analysis, etc., to the Engineer within five working days after sampling.
Submit a written certification within five days after the end of each month stating compliance with the Plans of Action and Compliance Programs specified within this Specification for worker protection, environmental protection, and waste handling; and all deficiencies found have been addressed. The certification shall be prepared and signed by the CIH, CSP, or a person working under their direction.
436.03.03 Quality Control (QC) Plan, Inspection Procedures, and Recording Systems. Submit a Quality Control Plan for providing daily job quality control according to SSPC-QP1 for surface preparation and painting operations. The Quality Control Plan shall include the following:
(a) Records of standards and specifications for coating inspection work and their utilization.
(b) System for filing inspection reports.
(c) Demonstration that inspection equipment and calibration standards and procedures for calibrating the inspection equipment are available.
(d) Procedures to stop nonconforming work.
(e) Procedures for verifying proper coating application.
(f) Procedures to ensure that each major operation is inspected and the inspection results documented. Contractor QC inspections shall include:
(1) Effectiveness of protective coverings to control project debris, paint spatters, overspray, drips, paint spills, etc., while painting over roadways, waterways, machinery areas, and areas in the vicinity of abutments and private properties.
(2) Ambient conditions.
(3) Compressed air cleanliness and, if required, acceptability for breathing.
(4) Surface preparation (solvent cleaning, pressure washing, hand/ power tool or abrasive blast cleaning, etc.).
(5) Coating application (specified materials, mixing, thinning, and wet film thickness).
(6) Dry film thickness per coat.
(7) Recoat times and cleanliness between coats.
(8) Coating continuity and coverage (free from runs, sags, overspray, dryspray, pinholes, shadow-through, skips, etc.).
Maintain on-site copies of the daily job quality control records and make them available to the Engineer upon demand. Submit records from on-site audits and inspections from SSPC, MOSH, OSHA, EPA, and MDE.
436.03.04 Inspection Equipment. Provide for the exclusive use of the Engineer, the following equipment for the QA observations of the cleaning and painting operations. Maintain, calibrate, and verify the equipment in a condition that is satisfactory to the Engineer. The equipment will remain the property of the Contractor at the conclusion of the Contract.
(a) The latest editions of SSPC Vis 1, SSPC Vis 3, or SSPC Vis 4, as applicable to the project, or other approved visual standards.
(b) SSPC Manual Volumes 1 and 2 (Latest Editions).
(c) Spring Micrometer with Coarse and Extra Coarse Surface Profile Replica Tape.
(d) Electric or Sling Psychrometer, F.
(e) U.S. Weather Bureau Psychrometric Tables.
(f) Surface Thermometer, 0 F to 150 F.
(g) Probe Thermometer for Paint Temperature.
(h) High/Low Thermometer for Paint Storage Area.
(i) Wet Film Thickness Gauge.
(j) Digital Magnetic Dry Film Coating Thickness Gauge capable of transferring data to a computer (SSPC-PA 2, Type 2).
(k) Plastic Calibration Shims for Digital Magnetic Dry Film Thickness Gauge.
(l) Inspector’s Mirror.
(m) Wind Meter.
(n) Clean, White, Lint-Free, Absorbent Rags.
(o) Light Meter for measuring light intensity during surface preparation, painting, and inspection work.
(p) Putty Knife at least 40 mils thick and 1 in. to 3 in. wide.
(q) Blotter Paper.
(r) Dry film thickness calibration plates traceable to the National Institute of Standards and Technology.
(s) Measuring stick or pole to measure platform under clearance. The stick or pole shall be collapsible and have a minimum measuring height of 20 ft.
436.03.05 Paint Quality Assurance (QA) Inspector Notification. Notify the Structure Inspection and Remedial Engineering Division at least five working days prior to beginning field cleaning and painting of new and existing steel. A paint inspector will be provided to assist the Engineer in performing the QA observations of the cleaning and painting portion of the work. Failure to comply with this notification shall be cause for not accepting the work performed. Paint applied without QA acceptance may be required to be removed and reapplied at no additional cost to the Administration. Any test to determine acceptance shall be at no additional cost to the Administration. Do not perform additional work until a determination has been made.
436.03.06 Floodlighting. Provide floodlighting, including power sources, to supply adequate illumination to all surfaces being prepared, painted, or inspected, including the underside and inside of the containment system, when containment is employed. Floodlighting shall meet SSPC-Technology Guide No. 12, be maintained in good working condition, and be of an approved design. Adjust the floodlighting to avoid glare to marine and vehicular traffic.
436.03.07 Field Cleaning and Painting. Refer to the Contract Documents for the appropriate cleaning and painting requirements.
436.03.08 Painting Sequence. Do not paint the outside facing surfaces of beams until all concrete has been placed and parapet form brackets removed. However, the primer coat may be applied to these areas prior to placing the form brackets provided that it is properly touched up prior to placing the next coat of paint. Protect concrete from being stained by painting operations. Restore painted or stained concrete surfaces to originally intended color without damaging the concrete.
Proceed with cleaning and painting by sections, bays, or other readily identifiable part of the work as approved.
Start the work at the top and proceed toward the bottom.
436.03.09 Surface Preparation. Prepare surfaces as specified in the pertinent SSPC Specifications and the Contract Documents. Surface conditions shall meet the pertinent SSPC-VIS Standards, and the test plates/sections as specified in 436.03.11.
436.03.10 Methods of Cleaning. Methods shown in the following table apply to both shop and field cleaning and shall be performed in the order shown. The methods are invoked based on the Paint System specified.
PAINT SYSTEM SUBSTRATE METHOD OF CLEANING
C & D Abrasive blast cleaned steel Existing Paint to be Removed -

Localized (a) and (b) and complete (h)

E & H Overcoating existing paint Existing Paint to be Overcoated -

Localized (a) and complete (c) followed by (d) and (e)

(a) Solvent Cleaning. Use solvents, emulsions, cleaning compounds, steam cleaning, or similar approved materials and methods in accordance with SSPC-SP 1 to remove grease, oil, diesel smoke residue, soot, and similar surface contaminates. Use soap steam cleaning for steel open grid decks and walkways and machinery areas of drawbridges. Before it evaporates, remove contaminated solvent by wiping or rinsing with clean solvent to prevent a film of contaminants from remaining on the surface. Solvent wiping may be required between coats. Use solvent approved in writing by the paint manufacturer.
(b) Low Pressure Water Cleaning (LPWC). Use potable water on all bearings, transverse and longitudinal joints, and beam ends prior to abrasive blast cleaning to remove salts, bird droppings, dirt, and debris. At beam ends, wash to the limits defined in 436.01.01(d). Use LPWC as necessary between coats to remove surface contamination.
Perform LPWC according to SSPC-SP 12, except use a nozzle pressure of 2000 psi to 2500 psi together with a rotating tip 12 in. to 18 in. from the surface. Equip the pressure washer with easily accessible gauges and a pressure regulator. Perform LPWC no more than 96 hours prior to blast cleaning. Use this method to remove concrete spatter, dirt, debris, salt contaminants, grease, oil, and similar surface interference material from newly coated structures prior to the application of additional coats. Should the surface not be blast cleaned within 96 hours after LPWC, the Engineer will determine if additional preparation is required.
When the water is to be recycled and the coating being cleaned contains toxic metals, test for toxic metals before reuse. Do not reuse water that exceeds the threshold value for any toxic metal.
(c) High Pressure Water Cleaning (HPWC). Use potable water prior to hand and power tool cleaning in preparation for overcoating to remove loose paint, loose rust, loose mill scale, salts, bird droppings, dirt, debris, grease, oil, hydrocarbons, diesel smoke residue, soot, chalk, and similar surface interference material.
Perform HPWC according to SSPC-SP 12, WJ 4, except use nozzle pressures of 4000 psi to 6000 psi and a rotating tip. A biodegradable detergent may be added to the water for the removal of grease, oil, and hydrocarbons if approved. Equip the pressure washer with easily accessible gauges and a pressure regulator. Perform the cleaning at close range to the surface, approximately 6 in., using a pattern of overlapping drops followed by cross-hatching with the same overlap. At the end of cleaning, ensure that the swirling patterns created by the rotating tip are not visible on the surface. Perform the HPWC within 96 hours of applying the first coat. Should the surface not be painted within 96 hours, the Engineer will determine if additional preparation is required.
When the water is to be recycled, and the coating being cleaned contains toxic metals, test for toxic metals before reuse. Do not use water that exceeds the threshold value for any toxic metal.
(d) Power Tool Cleaning. Perform according to SSPC-SP 3 and as depicted in SSPC-Vis 3. The use of 40 grit sanding discs is recommended. Refer to (e) for inaccessible areas.
(e) Hand Tool Cleaning. Perform according to SSPC-SP 2. The use of 60 grit sanding paper is recommended.
Restrict the use of this method to areas that are inaccessible for power tool cleaning.
(f) Power Tool Cleaning to Bare Metal. Perform according to SSPC-SP 11 and as depicted in SSPC-Vis 3, with a surface profile of at least 1.0 mil.
(g) Brush Off Blast Cleaning. The end surface condition shall meet SSPC-SP 7, Brush Off Blast Cleaning and as depicted in SSPC-Vis 1. Ensure that abrasives are dry and free of oils, grease, and other harmful materials such as lead dust, at the time of use.
(h) Near White Metal Abrasive Blast Cleaning. Do not use steel shot in the field. When using steel shot in the shop, add the appropriate amount of steel grit and maintain the mixture to produce an etched surface texture and not the peened surface texture that results when blast cleaning with shot alone. The end surface condition shall meet SSPC-SP 10, Near White, and as depicted in SSPC-Vis 1. Ensure that abrasives are dry and free of oils, grease, and other harmful materials such as lead dust at the time of use. Abrasive media shall produce blasted surfaces having a surface profile height of 1.5 mils to 4.0 mils as determined according to D4417 Method C.
Whenever the existing condition causes surface profile to exceed 4 mils on weathering steel and in heavily corroded areas of existing structural steel members, apply at least two coats of primer to achieve the minimum dry film thickness specified above the profile.
436.03.11 Test Plates/Sections. When abrasive blast cleaning is specified, furnish two 12 in. x 12 in. x 1/4 in. steel test plates and clean them to meet SSPC VIS Standards and the Contract Documents. Apply a clear protective coating to these standard test plates and use them as a job sample standard for cleaning operations. When approved as an alternative to the test plates, portions of an actual work piece may be used in order to reach agreement on the degree of cleaning before production surface preparation begins. When the SSPC VIS Standards accurately depict the agreed upon degree of cleaning on the test section, the prepared section does not have to be sealed and retained for future reference. When the SSPC VIS Standards do not accurately depict the degree of cleaning, the test section shall be sealed and retained, or the test plates utilized. For the production cleaning operations, the written requirements of this Specification, the SSPC definitions, the test plates, and the SSPC VIS Standards shall be used in that order for determining compliance with the Contractual requirements.
436.03.12 Removal of Vegetation, Planking, and Signage. Prior to surface preparation, remove vegetation overhanging or fouling the structure.
When the structure has planking (timber or plywood) between the beams, carefully remove it in the areas of work operations. Store and maintain the planking in good condition. Dispose of all debris on the planking. Unless otherwise directed, the planking will not have to be reinstalled until cleaning and painting operations are complete. The Engineer may direct that portions of the planking be reinstalled prior to opening any lane to traffic during the same working day. The Engineer may also direct that planking be reinstalled during periods of work stoppage.
When the fascia webs of the structure contain street identification signs, remove them prior to beginning cleaning operations in the area. Clean and paint areas exposed by the sign removal, including bolt holes. Whenever a sign is removed, notify the Engineer. The Engineer will notify the Office of Traffic and Safety’s Chief, Traffic Operations Division. Street signs may be reinstalled by the Office of Traffic and Safety utilizing the Contractor’s maintenance of traffic. They will coordinate this work with the Contractor.
436.03.13 Repair of Surface Imperfections. Regardless of the method of cleaning, remove surface imperfections such as sharp fins and slivers, rust scale, weld spatter, and pack rust by a combination of cleaning procedures such as using hand or power impact tools (chipping hammers or scaling hammers), blast cleaning, etc., without scarring good steel.
436.03.14 Feathering and Removal of Defects in Existing Coating. For projects involving the touch up or overcoating of newly installed steel or existing coatings in the field, regardless of the method used for cleaning, feather the edges of old paint permitted to remain. Remove portions of paint on previously painted surfaces that are chalky, powdered, cracked, or otherwise unacceptable. Remove runs and sags in the existing paint on the outside facing surfaces of fascia beams over highways. Ensure a smooth appearance after application of the new coating.
436.03.15 Surface Condition Prior to Painting. Remove residual dust, dirt, and grease from the surface as the final procedure prior to painting and between coats whenever the coating is contaminated. Cleaning includes the removal of all dust, puddles, grease, oil, exhaust from trucks, debris, concrete spatter, and other foreign matter on the surfaces being painted. Also remove debris on surfaces adjacent to those being painted. Concrete spatter stains that discolor the primer need not be removed provided material is not dislodged when wiping the surface with a cloth. Cleaning involves vacuuming, solvent cleaning, hand/power tool cleaning, and pressure washing as appropriate. Should an area of previously cleaned steel become soiled, contaminated, or rusted, reclean the area prior to painting at no additional cost to the Administration.
Prior to the application of paint in the shop and field, the QC personnel shall inspect the surfaces and establish that they have been prepared according to the Specifications. Upon QC acceptance, obtain approval that the surfaces to be painted during that day have been cleaned as specified.
Move all hooks, cables, beam clamps, and outriggers during cleaning operation to allow the underlying surfaces to be cleaned. Any containment attachments that cannot be moved during cleaning and painting must be power tool cleaned to SP-11 Bare Metal and coated using Paint System H.
436.03.16 Paint Storage and Mixing. Store paints and thinners in well ventilated areas that are not subject to excessive heat, open flames, electrical discharge, and direct rays of the sun. Adhere to the manufacturer’s recommendations. Store materials in heated areas when necessary. Use materials on a rotating stock basis, and leave containers closed until used. Do not use paints that cannot be stirred to normal consistency. Store paint in tightly covered containers at an ambient temperature of at least 45 F. Maintain containers in a clean condition, free of foreign materials and residue.
Remove and discard thin skins formed in the container. Do not use material that is livered, gelled, thick skinned, or otherwise questionable.
Mix paints according to manufacturer’s instructions and as approved. Do not thin the paint unless authorized by the paint manufacturer and approved. The Engineer shall be present whenever the paint is thinned. Do not use materials that are beyond their pot life or shelf life. For multiple component paints, only complete kits shall be mixed and used. Partial kit mixing is prohibited.
Remove waste chemical solutions, oily rags, and other waste daily. Take precautionary measures to ensure protection of workers and work areas from fire hazards and health hazards resulting from handling, mixing, and applying materials.
436.03.17 Paint Representative. The representative shall be a technical representative of the paint manufacturer. During initial execution of the work the Engineer may require the paint representative to be on site to approve with the Engineer the degree of cleanliness prior to painting and the method of application of the coating system. The Engineer may stop paint operations for failure to meet this requirement regardless of the reason for failure. Areas cleaned prior to ceasing paint operations shall be recleaned if required.
436.03.18 Field Painting. Meet SSPC-PA 1 for painting application and 436.03.19 thru 436.03.22.
436.03.19 Weather Restrictions for Painting. All surfaces to be painted shall be sound and cleaned as specified. Painting is allowed when:
(a) There is no presence of rain, snow, fog, or mist dampening or condensing on the surface.
(b) The relative humidity does not exceed the maximum humidity specified by the paint manufacturer.
(c) The ambient temperature in the shade is above 40 F.
(d) The surface temperature is above 35 F or the minimum temperature specified by the manufacturer, whichever is greater, and will be constant or higher until the paint cures to readiness for recoating.
(e) The surface temperature is a minimum of 5 F above the dew point until cure or intermediate coats have been top coated.
(f) The surface temperature is below 120 F or the temperature recommended by the paint manufacturer, whichever is less.
Whenever it is suspected that moisture is condensing upon the surface, the psychrometer will be used to check dew point, etc. If the conditions measured by the psychrometer are marginal, the Engineer may permit a well-defined area of the surface to be lightly moistened with a damp cloth and observed. If the dampness evaporates within 15 minutes, the surface will be considered satisfactory for the application of paint. Regardless of any environmental test results, when fresh paint is damaged, replace or repair the paint at no additional cost to the Administration.
Schedule the operations so that all cleaned surfaces are painted within 24 hours. If rust bloom appears or the air or steel temperature falls below five degrees above the dew point after cleaning and prior to application of the primer coat, reclean the affected areas to the satisfaction of the Engineer at no additional cost to the Administration.
436.03.20 Artificial Climate Controls
(a) Minimum temperature (substrate, air, and material) and all other environmental restrictions shall be maintained as specified. Refer to 436.03.19.
(b) If heat is to be used to reach environmental conditions, use only an indirect heat source that will disperse the heat evenly throughout containment area.
(c) Maintain heat according to the manufacturer’s recommendations or time at recoat, whichever is greater, after the coating is completed in the desired areas.
(d) Install an operational automatic temperature data recorder inside the containment area until time to recoat, or manufacturer’s recommendations, whichever is greater. The placement will be determined by the Engineer.
(e) Artificial Climate Controls will be at no additional cost to the Administration and no additional time will be added to the contract.
(f) Failure to maintain artificial climate controls will be cause to be denied work until weather dictates that artificial climate controls are not needed.
436.03.21 Application of Prime, Intermediate, and Finish Coats. All surfaces shall meet the specified degree of preparation prior to the application of the paint system.
Apply all paint according to the manufacturer’s recommendations except the dry film thickness shall conform to 912.05. Spray painting will be permitted provided the Engineer approves the location and method of spray application. Paint all areas adjacent to machinery and mechanical components, etc., by brush application unless the Engineer approves spray application. Surfaces inaccessible for painting by regular means shall be painted using sheepskin daubers or by other means as necessary to ensure coverage of the proper coating thickness.
Move hooks, cables, beam clamps, and outriggers whenever possible to allow cleaning and application of all three coats of paint to these areas.
Maintain, calibrate, and adjust the thickness measuring instrument, and take measurements according to SSPC-PA 2. Apply stripe coats using brush, dauber, or roller to all edges, outside corners, crevices, welds, rivets, bolts, nuts, and washers prior to application of coatings according to the following schedule:
SYSTEM COAT
B II & III
C I* & II
E I & II
H II & III
*Striping of Coat I is permitted after the application of Coat I if the stripe coat is tinted according to manufacturer’s recommendation.
Ensure that each coat is free of shadow-through, skips, misses, and thin or heavy coating thickness. Repair defects prior to application of the next coat. Keep the surface to be coated dust-free during painting operations, and protect newly coated surfaces from the cleaning operations. When a previously cleaned or painted area becomes soiled, contaminated, or rusted, reclean the area to the specified condition and completely recoat at no additional cost to the Administration.
Apply each coat within 30 days after the prior coat, unless approved in writing by the paint manufacturer. If the recoat window is exceeded, reclean the surface as approved by the paint manufacturer and the Engineer.
At project completion, all fascia beams shall have a smooth and uniform appearance throughout. Should any fascia have runs, sags, heavy film build, blisters, bubbles, orange peel or any other coating defect which does not give the appearance of a smooth uniform surface, reclean and paint specific areas or the entire fascia as directed by the Engineer.
436.03.22 Control of Overspray and Spills. Protect the environment from paint droplets, overspray, and spills by providing containment for the paint application area. Assume responsibility for any damage resulting from wind and cleaning and painting operations. Up to 2 in. of overspray will be permitted onto the adjacent surface of the bridge deck next to the top flange. No other overspray will be permitted. Whenever the method of protection fails to function at the required level of efficiency, immediately suspend all operations except those associated with minimizing adverse impact to the environment. Do not resume operations until modifications have been made to correct the cause of the failure. Use fire retardant containment screens, curtains, and tarpaulins.
Paint operations may be stopped by the Engineer due to wind. However, operations shall stop if the wind velocity exceeds 20 mph, unless specific and approved precautions are taken to prevent the escape of paint droplets and overspray.
436.03.23 Caulking. Caulk the following areas with a material approved by the paint manufacturer. Install caulking between the intermediate and finish coats:
(a) Areas of plate delamination that are 1/8 in. or greater that cannot be cleaned and sealed during the application of the coatings.
(b) Gaps between steel members that are 1/8 in. or greater that cannot be cleaned and sealed during the application of the coatings.
(c) Interface between the steel and concrete surfaces where through-girders penetrate the concrete. Apply caulking to the surfaces above the deck only. Do not caulk surfaces below the deck.
(d) Gaps at the interface of steel and concrete surfaces that cannot be cleaned and painted.
436.03.24 Defective Work. Neither conditions during application nor Laboratory acceptance of paint shall remove the responsibility of obtaining a satisfactory paint system. When rusting occurs or a paint coat lifts, blisters, wrinkles, or shows evidence of having been applied under unfavorable conditions, the workmanship is poor, impure or unauthorized paint has been used, or for any other reason the painting is unsatisfactory, remove the affected paint and thoroughly clean the steel and repaint. Ensure that there is a uniform appearance throughout the structure.
436.03.25 Repair of Damaged Coatings due to Contractor Operations. Notify the Structure Inspection and Remedial Engineering Division to determine the methods of cleaning and painting to be used.
436.03.26 Final Identification. When the final coat of paint is dry, stencil a legend on the structure indicating the type of paint used in each coat, and the month and year in which each application was completed. Apply 2 in. to 2-1/2 in. high letters with black paint to the inside surface of a fascia beam near the abutment at a location selected by the Engineer. Use stencil paint that is compatible with the paint system applied. When more than one paint system is used, apply additional stencils.
436.03.27 Field Cleaning Waste Containment. Meet the SSPC Guide 6 containment levels specified in 436.03.28 and .29. Applicable portions of these requirements apply to shops when existing steel coated with hazardous material is cleaned in the shop. With the exception of paint removal on the top flanges of members in preparation for deck replacement, provide a written Containment System Plan as specified in 436.03.28 unless otherwise directed.
436.03.28 Field Cleaning Containment System Plan Guidelines. Unless otherwise directed, the following submittal requirements apply when a containment system is specified, regardless of the presence of toxic metals. Even if a written Containment Plan is not required, meet the technical requirements listed below when containment is used. Provide all submittals to the Office of Structures, Working Drawing Review Section. Provide the following:
(a) Working drawings of the proposed containment system, showing the design of the paint removal, containment, rigging, and ventilation system (if applicable), including all calculations and assumptions. The working drawings shall:
(1) Indicate which structures are covered by the plans submitted. Show the containment system in plan and elevation views, including details of clips and hangers.
(2) Identify all containment system components on the plan sheets.
(3) Indicate the type and size of scaffolding or rigging to be used.
(4) Indicate sizes of the containment areas, and when ventilation is specified, the capacity of the dust collectors, equipment data sheets, and types of airflow systems to be provided including volume of air from ventilation fans and minimum velocity of air movement.
(b) The containment system and equipment shall not encroach upon the minimum structure clearances specified.
(c) Secure all curtains, screens, and tarpaulins used for containment. Make connections to the steel work of the structure with clamps or other approved devices. Do not drill holes into the existing structure or weld to the existing steel work. Do not make permanent attachments or fastenings to the structure. Do not attach any load to the structure railings unless details and calculations showing loading have been approved.
(d) Use fire retardant containment curtains, screens, and tarpaulins.
(e) Indicate maximum waste load permitted on the containment system, expressed in inches of debris.
(f) Indicate all restrictions on the structure, and if it is posted.
(g) When the containment or rigging system or methods of erection will apply a load to the structure (e.g., suspended platform) the submittals shall include an analysis of the load that will be added to the existing structure, including blast waste. When vehicles containing surface preparation materials or waste will be stationed on the structure, indicate allowable load and location. The load analysis shall be performed, signed, and sealed by a professional engineer registered in the State of Maryland. The analysis shall ensure that the system will not affect the structural integrity of the structure.
When the containment or rigging system does not impose a load to the structure (e.g., tarpaulin materials suspended from the structure at an abutment or cables and picks used for access), a professional engineer analysis and review of the drawings is not required.
(h) Prepare and submit all drawings requiring a professional engineer review and seal as defined in (g) above as specified in Section 499. Drawings not requiring a professional engineer review and seal can be provided on standard paper. Submit 10 copies of each drawing. When a professional engineer stamp is required, sign and seal each sheet by the professional engineer. Provide the submittal letter on company letterhead. At least one copy of the submittal shall have an original seal.
(i) When the structure is over water, show a skimming boom for emergency backup.
(j) All steel corrugated decking containment materials shall have either fire retardant plastic, impermeable screen or tarpaulins laid on top to prevent the leaking of grit, dust, toxic metals and debris during blast cleaning activities.
436.03.29 Containment System Requirements by Method of Preparation. Refer to 436.03.10.
(a) Washing. When pressure washing newly installed steel coated only with inorganic zinc primer, the surfaces may be washed without any containment or collection of the water. Prevent spray and runoff water from entering traveled areas such as roadways, walkways, and railroads.
Whenever pressure washing is being performed on other painted surfaces, prevent paint chips from falling into rivers, streams, wetlands, wetland buffers, or other bodies of water, and when specified, from falling onto the ground. Should inadvertent spills or releases of paint chips occur, clean them up before the end of the shift, or immediately if directed.
(1) When pressure washing paint containing toxic metals or inorganic zinc/vinyl systems, the containment shall meet SSPC Class 2W. Collect and dispose of all wash water and debris according to the applicable regulations and 436.03.27 and 436.03.35, respectively. Prevent paint chips from falling onto the ground.
(2) When pressure washing all other systems (systems other than inorganic zinc, inorganic zinc/vinyl, or systems that contain toxic metals), collect all dislodged paint chips, but the water need not be captured. When dislodged chips are collected on suspended containment screens, the maximum mesh opening shall be 17 mils. When working over ground, chips may be collected from the ground in lieu of utilizing containment screens, provided all chips are collected before the end of the shift. Dispose of collected paint chips and debris according to applicable regulations and 436.03.35.
(b) Power Tool and Hand Tool Cleaning. Prevent paint chips from falling onto the ground or into rivers, streams, wetlands, wetland buffers, or other bodies of water. Should inadvertent spills or releases of paint chips occur, clean them up before the end of the shift, or immediately if directed.
(1) If paint system contains toxic metals, the containment for open power tool cleaning shall meet SSPC Class 2P. Dispose of collected paint chips and debris according to the applicable regulations and 436.03.35.
(2) If paint system does not contain toxic metals, the containment for open power tool cleaning shall meet SSPC Class 3P. Dispose of collected paint chips and debris according to the applicable regulations and 436.03.35.
(3) For roadway joints and other small areas approved by the Engineer, High Efficiency Particulate Air (HEPA) filter vacuum shrouded power tools may be used in lieu of containment in areas of paint containing toxic or nontoxic metals. Vacuum-shrouded power tools may eliminate the need for containment if it can be demonstrated that all paint chips and debris are sufficiently collected by the vacuum.
(c) Spot Abrasive Blast Cleaning or Brush Off Blast Cleaning. Prevent paint chips from falling onto the ground or into rivers, streams, wetlands, wetland buffers, or other bodies of water. Should inadvertent spills or releases of abrasives or paint chips occur, clean them up before the end of the shift, or immediately if directed.
With the exception of new steel installed with inorganic zinc primer, the containment for spot abrasive blast cleaning or brush off blast cleaning (regardless of the presence of toxic metals) shall meet SSPC Class 2A. Dispose of collected paint chips and debris according to the applicable regulations and 436.03.35.
Containment for spot abrasive blast cleaning or brush off blast cleaning of newly installed inorganic zinc primer shall meet SSPC Class 3A. Dispose of collected paint chips and debris according to the applicable regulations and 436.03.35.
(d) Total Paint Removal by Abrasive Blast Cleaning. Prevent paint chips from falling onto the ground or into rivers, streams, wetlands, wetland buffers, or other bodies of water. Should inadvertent spills or releases of abrasives or paint chips occur, clean them up before the end of the shift, or immediately if directed.
When totally removing any coatings by abrasive blast cleaning (regardless of the presence of toxic metals), the containment shall meet SSPC Class 2A. Dispose of collected paint chips and debris according to the applicable regulations and 436.03.35.
Meet ambient air and worker exposure requirements established by the Maryland Department of the Environment and MOSH.
Maintain containment systems while work is in progress. Do not deviate from the approved working drawings. Deny public access to all rigging, scaffolding, containment systems, and work sites at all times.
When cleaning structures over water, provide a skimming boom for emergency backup consisting of a float with a skirt or other approved system and employ it immediately to collect floating debris. Clean the skimming boom at least once a day. Upon completion of the project, clean the skimming materials or if cleaning is not possible or practical, dispose of as hazardous or nonhazardous waste as applicable.
436.03.30 Worker Protection and Exposure Monitoring. In addition to complying with all applicable OSHA and MOSH regulations, when the project involves coatings that contain toxic metals, provide the services of a CIH or CSP as specified in 436.03.02(c) and submit a Worker Protection Compliance Program as specified in 436.03.31. The CIH or CSP, or a technician working under the direction of the CIH/CSP shall monitor worker exposures during paint disturbance operations at each structure and provide worker protection oversight.
Regardless of whether or not toxic metals are present, provide a hand wash station with soap and towels at each work site. As dictated by the monitoring results and the applicable OSHA standards, provide a cleanup area with a shower, soap, hot and cold potable pressurized water; a change area with a locker; and an approved container for collecting and disposing of waste at each work site.
Ensure that the hand wash and shower facilities are available to all site personnel. Hygiene facilities shall meet 29 CFR 1926.51, Sanitation Standard.
436.03.31 Worker Protection Compliance Program. The Worker Protection Compliance Program shall be on company letterhead and meet OSHA and the MOSH - Lead in Construction Standards, and other applicable toxic metal standards. The Worker Protection Compliance Program shall be reviewed and signed by the CIH or CSP and at least one copy of the submittal shall have an original CIH or CSP seal. The Worker Protection Compliance Program shall include a commitment for the CIH or CSP, or a person working under the direction of the CIH/CSP, to provide written certification each month of compliance with the Worker Protection Compliance Program, including biological monitoring. Provide a copy of the letter within 6 working days after the end of the month.
A Worker Protection Compliance Program is not required when the coatings being disturbed do not contain toxic metals.
436.03.32 Environmental Protection. At the end of the shift each day and upon completion of all project activities, clean the surrounding property and the entire project area so that it is free of visible debris from the cleaning and painting activities.
436.03.33 Environmental Protection Plan of Action (EPPA). An EPPA confirming that the environment is protected from contamination is required when the coatings are being abrasive blast cleaned (regardless of the presence of toxic metals), or the coating being disturbed contains toxic metals (regardless of the method of preparation). When an EPPA is required, it shall be reviewed and sealed by a CIH or CSP and shall include procedures for monitoring air, soil, and water.
Include a location plan showing the type and location of high volume ambient air monitors if applicable, and the procedures that will be followed for visible emissions assessments and inspections of the soil, water, surrounding property and structures, and pavement. Submit 6 copies of each plan signed and sealed by the CIH or CSP. All submittals shall be in writing and on company letterhead. At least one copy shall have an original seal. Address the proposed procedures that will be implemented for the following as defined in 436.03.34:
(a) For any paint disturbance using dry methods of preparation, address the daily visual emissions observations that will be performed and the corrective action that will be implemented in the event emissions or releases occur.
(b) When paint containing toxic metals is being disturbed, address the provisions for high volume ambient air monitoring (TSP-Monitoring); monitor citing, calibration, and operation; filter handling and shipping; and laboratory analysis, including the name and qualifications of the laboratory. Test results shall be reviewed and summarized by the CIH. Provide copies to the Engineer within 6 work days of sample collection by CIH or CSP.
(c) For any paint disturbance, address the visual assessments for soil/water/sediment that will be undertaken each day throughout the Contract, together with the proposed clean up activities.
(d) Provide a commitment from the CIH or CSP, or a person working under the direction of the CIH/CSP, that within 6 work days after the end of the month a written certification will be furnished to the Engineer certifying that the Contractor has complied with the EPPA.
436.03.34 Methods for Assessing Emissions. Unless otherwise specified, the following requirements apply to all projects, regardless of the presence of toxic metals:
(a SSPC Level 1 Visible Emissions. The following Level 1 visible emissions criteria apply when any paint is disturbed by dry methods such as blast cleaning or power tool cleaning.
Level 1 Emissions are defined as random visible emissions of a cumulative duration of no more than 1 percent of the workday or approximately five minutes in an eight-hour day. Level 1 is required for all structures. The Contractor’s QC person, or Competent Person in the case of toxic metals projects, shall perform at least two 15 minute documented observations during each work shift. In addition to the 15-minute observations, direct all Contractor personnel to routinely observe the work area and to report unacceptable emissions to QC or supervisory personnel, or to the Competent Person. When unacceptable emissions are detected, locate and immediately correct the source of the emissions. Retain the records on site, and make them available to the Engineer.
The visible emissions criteria are not required when the paint is cleaned or disturbed using water. When water is used on existing coatings that contain toxic metals or on inorganic zinc/vinyl systems, collect all water and emissions are prohibited. When water is used to clean all other coating systems, the water need not be collected and emissions are not restricted.
(b) Ambient Air Monitoring. Unless otherwise directed, ambient air monitoring is required when the coatings being disturbed contain toxic metals, and whenever the paint removal operations are located within 500 ft. of houses, schools, parks, playgrounds, shopping areas, or similar areas of public exposure. Ensure monitoring starts one half hour before blast cleaning or power tool cleaning begins and continues for the entire duration of the cleaning activity or 7 hours, whichever is greater.
(1) Abrasive Blast Cleaning Daily ambient air monitoring at each structure being abrasive blast cleaned shall begin one day prior to beginning work and during the first 10 days of productive abrasive blast cleaning operations. When the results indicate that the containment is controlling emissions, full-time monitoring may be discontinued unless otherwise directed. Ensure monitoring is repeated for 2 consecutive days every month thereafter during the work shift while blast cleaning or other dust producing operations are underway.
When the results of the original 10 days of monitoring or the periodic monthly tests are unacceptable, ensure that monitoring continues full-time. Monthly monitoring may be initiated or resumed only when approved, and only after the results of the testing indicates that the containment is controlling emissions.
Resume full-time monitoring when unacceptable visible emissions or residues are observed on the ground or water and as directed.
(2) Hand and Power Tool Cleaning Begin daily ambient air monitoring at each structure one day prior to beginning work and during the first five days of hand tool cleaning and power tool cleaning. When the results indicate that the containment is controlling emissions, full-time monitoring may be discontinued unless otherwise directed. Resume monitoring when visible residues are observed on the ground or in the water, or visible dust is observed exceeding the visible emissions criteria established above.
(3) Monitor Placement and Reporting Place total suspended particulate (TSP) monitors in areas of potential public exposure, including but not limited to adjacent to homes, businesses, parks, and pedestrian walkways, that are within 500 ft. of each project site during cleaning operations in conformance with Method D of SSPC Guide 6. The CIH or CSP shall provide for Engineer acceptance, the proposed monitoring locations in advance, together with the rationale for the selection of each site. All TSP monitoring samples shall be analyzed using Method 40 CFR 50 Appendix B and G by a laboratory approved by the American Industrial Hygiene Association.
The CIH or CSP shall use an Adjusted Daily Allowance (ADA) as described in SSPC Guide 6 (not an average daily allowance) for evaluating the TSP monitoring results. The CIH or CSP, or a person working under the direction of the CIH/CSP, shall provide a written report and analysis of monitoring results, including the relevant acceptance criteria based on the ADA, within five days of sample collection. Provide a copy of the results to the Engineer the following work day after receipt.
(c) Removal of Visible Project Debris. At the end of the shift each day and upon completion of all project activities, clean the surrounding property, structures, and the entire project area so that it is free of visible project debris.
Prevent paint chips, abrasives, dust, and debris from being deposited onto surrounding property, vehicles, concrete, pavement, slope protection, soil, water, sediment, etc. When there are spills or releases of such material, immediately shut down the operations producing the emissions and clean up the debris. Change work practices, modify the containment, or take other appropriate corrective action as needed to prevent similar releases from occurring in the future. Contain and collect water used for washing paint containing toxic metals or existing inorganic zinc/vinyl systems. Water used to wash all other paint systems need not be contained and may contact the ground and water.
436.03.35 Field Cleaning Waste Disposal. Store all project waste, regardless of whether or not toxic metals may be present, in sealed 55-gallon drums. Drums shall be labeled with the structure number, Contract number, Contractor’s name, contents, and the date. Refer to 436.03.36 through 436.03.41.
When the waste is hazardous, comply with SSPC Guide 7. Each day, collect clothing and other waste material and seal them in 55-gallon drums. The drums shall be sealed 55-gallon open head type drums meeting I.C.C. Specification 17-H. All drums shall be in new condition.
436.03.36 Waste Handling Plan of Action. Required for the handling, storage, and disposal of all hazardous waste, regardless of the presence of toxic metals. When the project involves the removal of paint containing toxic metals, the program shall be signed and sealed by the CIH or CSP. At least one copy of the submittal shall have an original seal.
The Plan of Action shall address the following:
(a) Names, addresses, and licenses for the proposed hazardous waste transporters and disposal facilities.
(b) Hazardous waste handling and storage procedures.
(c) Waste and waste water sampling and analysis procedures.
(d) Provide all test results to the Engineer within five days of sample collection.
436.03.37 Waste Sampling and Analysis. When the project involves hazardous waste, the CIH or CSP, or an employee working under the direct supervision of the CIH or CSP, shall take at least four samples of the accumulated residues of each waste stream collected at each structure or a sample from every third drum, whichever is greater. All sampling shall be random and representative.
Analyze the samples for TCLP as outlined in COMAR 26.13.02 and the EPA Test Procedure Manual, SW-846 for all RCRA 8 Metals. Waste shall not accumulate for more than 30 days before sampling. Analyze the representative samples collected by an approved laboratory and return the results to the Engineer within five working days of collection. Additional samples may be required if the average test results exceed 3.5 mg/l for lead, or exceed the threshold levels for other toxic metals allowed by COMAR and EPA procedures. The disposal method will be based on the results of these analyses, except handle, store, and dispose of waste generated using steel abrasives as hazardous waste regardless of the test results.
436.03.38 Temporary Waste Storage Site. Obtain an approved temporary storage site, and haul the waste material away from the work site at the end of each working day. Ensure that the storage site prevents the migration of the contaminated material into the environment and that it is protected from vandalism and unauthorized access by the general public. Remove the waste from the temporary storage site within 75 days from the initial date of accumulation or before the completion of work, whichever comes first. When the Contract Documents specify that the waste containers shall be stored at a particular facility owned by the Administration, contact that facility to schedule delivery.
436.03.39 Waste Water Disposal. Test the waste water collected from bridge washing and hygiene facilities for toxic metals. Perform tests using EPA Method 6010 by a laboratory approved by the American Industrial Hygiene Association.
Provide the Engineer with the test results and written plans for the disposal of the water, including the name and address of the licensed transporter and disposal facility. If the local publicly owned treatment works (POTW) authorizes the disposal of the water down the sanitary sewer system, provide a letter from the POTW authorizing the disposal.
436.03.40 Hazardous Waste Transportation and Disposal. Maryland law provides that when samples tested using TCLP exceed the threshold value (5 mg/l for lead), they shall be considered hazardous waste and be removed under manifest by a licensed hazardous waste transporter to a permitted disposal facility. When tested waste material is determined to be hazardous waste, request through the Administration an EPA identification number according to COMAR 26.13.03.03. Provide the Engineer with written plans for the transportation and disposal of the waste, including the name and address of the licensed transporter and disposal facility.
Dispose of waste containing less than the threshold value by the TCLP test, including the confidence interval, as specified in 436.03.41 for RCRA 8 Metals.
Prepare a manifest for hazardous waste to be transported from the approved temporary storage site. Manifests shall contain information stipulated in COMAR 26.13.03.04 and as otherwise required by State regulations. Forward the manifests to the Structure Inspection and Remedial Engineering Division.
Individually sample drums of other wastes, such as solvent contaminated rags, disposable protective clothing, disposed dust collector filters, and other contaminated substances appropriately.
COMAR 26.13.03.05 stipulates the "Pre-Transport" requirements and the amount of time permitted for the accumulation of hazardous waste. Transport waste by a certified waste hauler to a landfill permitted to accept this material.
Obtain a list of certified haulers and other information regarding handling and disposal of blast waste by contacting the Department of Environment, Hazardous Waste Administration.
436.03.41 Nonhazardous Waste Disposal. Waste containing less than the threshold value (refer to 436.03.40) by the TCLP test, including the confidence interval, may be disposed of as an industrial waste at a landfill permitted to accept this material. Dispose of all waste according to Federal, State, County, and local regulations.
Cover waste containers/dumpsters when not in an active filling process.
436.04 MEASUREMENT AND PAYMENT
The Contract unit price for the item specified will be full compensation for all cleaning and painting, scaffolding, platforms, containment systems, permits, working drawings, daily quality control records, professional engineer’s services used for containment, industrial hygienist services, air monitoring, sampling and testing of materials for toxic metal content, including any revisions and resubmissions that may be required during the execution of the work, providing safe access for inspections, hand wash station/clean up area, floodlighting, test plates, drums, collection and storage at the temporary storage site, hauling and disposal at an approved industrial waste site or hazardous waste site, removing and replacing planking, removal of debris, and all material, labor, equipment (including test equipment), tools, and incidentals necessary to complete the work.
436.04.01 Cleaning and painting existing structural steel will not be measured but will be paid for at the Contract lump sum price for the pertinent Cleaning and Painting item.
436.04.02 All costs associated with repair of existing coatings due to new construction, structural repairs, and damage caused by Contractor’s operations will not be measured but will be incidental to the pertinent Repair, Structural Steel, or Cleaning and Painting items included.