Wood preservation facilities, creosote: chapter D, table 23


Table 23. Additional Recommended Disposal Practices for Creosote Contaminated Wastes

(Use in conjunction with Part I, Chapter A - General Recommendations for All Wood Preservatives, Table 23.)

Waste category Examples Recommendations
Liquid creosote or creosote/oil solutions
  • Preservative work solutions
  • Material skimmed from oil separators
  • Drips from freshly treated lumber
  • Collect and reuse (standard practice at creosote/oil plants).
  • Recover and reuse (successfully demonstrated at some oil-borne plants).
Liquid creosote/water solutions
  • Condensates
  • Washwaters
  • Infiltrating waters
  • Treat to remove oil and creosote to within regulatory limits.
  • Reuse retrieved oil and creosote, e.g., from gravity separation.
  • Dispose of treated waters as per regulatory requirements.
Contaminated solid wastes
  • Debris and bottom sludge from storage tanks, sumps and pressure cylinders
  • Soils contaminated by spills
  • Cleanup absorbents
  • Drain and/or drum, store and dispose of in accordance with provincial regulatory requirements (high-temperature thermal destruction is considered a feasible disposal option).
Miscellaneous solid wastes
  • Scraps, cuttings and shavings from creosote-treated lumber
  • Dispose of in sanitary landfills (subject to approval by the municipal and/or provincial regulatory agency).
Contaminated storm runoff
  • Any storm runoff or contaminated liquid discharge that is determined to be toxic to fish at the point of discharge (toxicity is determined by bioassay tests of specific discharges)
  • Prevent or minimize contamination of storm runoff to the greatest possible extent.
  • Monitor surface water discharges (in consultation with the provincial regulatory agency) to assess contaminant concentrations and to determine the need for control.
Firefighting water runoff
  • As above (contaminated storm runoff)
  • Consider containment provisions in areas where creosote and creosote/oil solutions are present.
  • Consult the provincial regulatory agency to determine acceptable disposal practices.

Note: Consult the provincial and/or local regulatory agency for any specific requirements.

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