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Wood preservation facilities, general recommendations: chapter A, table 25

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Table 25. Recommended Routine Environmental Monitoring (All Preservatives)

Item	Recommendations
Authority/reporting	Develop a site-specific monitoring plan. Define reporting requirements. Re-evaluate the plan if the facility expands or changes the design or operating practices.
Soils	Consider implementing a soil monitoring program (with emphasis on unsurfaced ground) including all areas where preservative chemical is routinely stored, processed or handled; all freshly treated wood storage areas; all treated wood storage areas; drainage ditches or areas exposed to surface runoff (including overflow from drip pads and paved/concrete areas). Define sampling frequency (e.g. annual), sample type (e.g. surface, core), and required analyses (e.g. constituents, detection levels, quality control) in consultation with the regulatory agency.
Surface waters	Consider implementing a monitoring program for adjacent water bodies: Define monitoring frequencies and required analyses (e.g. constituents, detection levels, quality control) in consultation with the regulatory agency. Define concentrations of concern.
Groundwater	Facilities should implement a groundwater monitoring program using permanent monitoring points down-gradient of process areas and treated wood storage areas: Define direction of flow of the aquifer Define well construction. Define sampling frequencies and required analyses (e.g. constituents, detection levels, quality control). Give special attention to on-site wells used for drinking water.
Air emissions	Conduct a workplace exposure study once at the beginning of plant operations and update if there are any changes in plant design and/or operating practices. Identify air emission sources using data provided in the workplace exposure study (see Table 26). Monitor air emissions as required by provincial permits or as determined by industrial hygienist if no permits are required.
Liquid waste streams	Identify liquid waste discharges (including stormwater runoff): Determine concentrations of preservative constituents. Estimate total mass rates of emissions (suggested). Thereafter, monitor as required for all discharges governed by permits.

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2017-09-10

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