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Chapter 10
Roadside Management and Maintenance: Beyond Vegetation
10.15. Painting Operation Stormwater BMPs

Environmental stewardship practices for painting operations minimize exposure of paints and solvents to stormwater run-on and runoff. These Caltrans recommended practices safeguard against the accidental release of painting materials into storm drainage systems and natural watercourses. [N]

Following these storage practices will reduce the exposure of paints and supplies to stormwater run-on and runoff at maintenance facilities:

  • Where feasible, store paint materials in an area with a canopy or roof designed to direct runoff away from the storage area.
  • Check for leaking or ruptured paint containers.

Careful transport of painting material to and from the work site helps to prevent accidental spills:

  • Load and unload paint on level ground when using a forklift to minimize the chance of tip-overs and potential spills.
  • Ensure that all paint pallets are securely fastened before moving.
  • Secure the paint containers to the transport vehicle using approved methods such as ropes and straps.
  • Transport paint and materials to and from work sites in containers with positive locking lids.
  • Do not transfer or load paint over or near drain inlets, stormwater drainage systems, or watercourses.

Proper application practices inhibit paint chips and excess paint drift from being transported to storm drainage systems or watercourses by wind or other means. See section 7.3, Bridge Painting/Coating/Sealing and Containment Stewardship Practices for more detailed environmental stewardship practice.

  • Monitor weather and wind direction to ensure that paint drift is minimized and does not enter drain inlets, stormwater drainage systems, or watercourses.
  • If possible, use canvas or plastic tarps under the work area to capture excess paint or paint chips.
  • To avoid spills, follow proper operational procedures for lane striping and paint applications.
  • Ensure that the paint spray gun remains closed when not in use to prevent leaks.

Thorough cleanup and disposal practices ensure that paint-related hazardous materials are handled properly.

  • Do not clean out the paint spray gun over the ground.
  • Wipe up small paint spills immediately with rags. For larger spills, use dry absorbent material.
  • Collect all excess material and paint wash solutions in appropriate containers. Secure all containers and transport to a Maintenance facility for proper disposal.
  • Dispose of used absorbent and rags, and empty paint and solvent containers in appropriate containers at a Maintenance facility that has approved storage areas.
  • Special procedures may be required when removing yellow stripes.
  • Follow proper waste disposal procedures. Dispose of hazardous waste according to regulations. Contact the District Maintenance HazMat Manager or refer to the Maintenance Hazardous Waste Manual for more information and guidance.
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Table of Contents
Chapter 10
Roadside Management and Maintenance: Beyond Vegetation
10.1 Environmental Enhancement Practices and Partnership Efforts
10.2 Protection of Historic and Other Cultural Resources
10.3 Maintenance in Wetlands
10.4 Maintenance Near Waterbodies
10.5 Maintenance of Structures for Wildlife
10.6 Maintenance of Stormwater Facilities
10.7 Maintenance of Roadside Public Facilities
10.8 Management of Portable Sanitary/Septic Waste Systems
10.9 Maintenance of Shoulders and Roadway Appurtenances
10.10 Sweeping and Vacuuming of Roads, Decks, Water Quality Facilities, and Bridge Scuppers
10.11 Maintenance Stewardship Practices for Slopes, Drainage Ditches, Swales, and Diversions
10.12 Erosion and Sediment Control in Maintenance
10.13 Recycling in Roadside Maintenance Operations
10.14 Preserving Air Quality in Maintenance and Operations
10.15 Painting Operation Stormwater BMPs
10.16 Road Waste Management
10.17 Stockpiling, Spoil Disposal or Placement of Inert Fill
10.18 Maintenance of Soils
10.19 Emergency Actions
10.20 Field Review of Roadside Maintenance Operations
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