Best Management Practices for Maintenance
Rationale
Threats to the integrity of a facility and its systems include: frost heaving, poor drainage, poor electrical service, concrete deterioration, peeling or flaking paint, corrosions of steel equipment and reinforcing, puncturing of clay or synthetic liners, plumbing rupture, loss of backflow prevention, and loss of secondary containment systems. Preventive maintenance minimizes factors that cause deterioration. Timely repair of small problems prevents them from becoming larger issues, and minimizes algae growth and other pest problems.
| Environmental Principle: Any deterioration of the greenhouse jeopardizes the safety of workers and the environment by facilitating the introduction of greenhouse chemicals into the soil and water. |
Operational Aspects |
Environmental Assurance >> |
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Level 1 |
Level 2 |
Level 3 |
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Overview |
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Emergency Preparedness |
staff can recognize equipment malfunctioning and are trained to notify supervisor in such an event |
staff can recognize equipment malfunctioning and alarms and are trained to notify supervisor in such events |
staff are trained in limited operational response (e.g., shutting off valves) when they recognize equipment malfunctioning or hear equipment alarms; staff then notify supervisor for further response and correction |
Environmental Awareness |
staff are trained in behaviors, but not impacts (e.g., poorly maintained or broken equipment is not good) |
staff receive orientation to impacts (e.g., poorly maintained or broken equipment can lead to environmental impacts) |
staff understand that poorly maintained or broken equipment can have environmental consequences and legal liabilities, and understand the necessity of personal action in responding to equipment maintenance needs |
Training |
staff are trained to recognize equipment and facility malfunctions |
staff are trained to recognize and react to equipment and facility malfunctions |
staff are trained to recognize and react to equipment and facility malfunctions |
Communication |
individuals in the greenhouse community report maintenance concerns as they occur |
individuals in the greenhouse community report maintenance concerns as they occur; greenhouse staff and maintenance personnel discuss repairs where appropriate to maximize long-term effectiveness of repairs |
individuals in the greenhouse community report maintenance concerns as they occur; greenhouse staff and maintenance personnel discuss repairs where appropriate to maximize long-term effectiveness of repairs; greenhouse staff and maintenance personnel meet regularly to discuss preventive maintenance and foreseeable maintenance issues affecting greenhouse structural integrity and plant care |
Management |
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Preventive Maintenance (mechanical, electrical, plumbing & other environmental control equipment) |
no preventive maintenance schedules (greenhouse and maintenance staff) |
equipment list; work orders generated by calendar or season; subjective scheduling; no or informal record keeping; no tracking |
work orders generated by electronic maintenance system; reports or receipts tracked and required by maintenance system; equipment-specific |
Routine Maintenance (mechanical, electrical, plumbing & other environmental control equipment) |
greenhouse staff note problems as they occur; report problems informally to greenhouse management |
maintenance staff note problems as they occur; repair as needed |
greenhouse and maintenance staff work together to identify problems as they occur; repairs are prioritized and implemented |
Evaporative Cooling |
evaporative cooling system leakage and bleed off are not monitored; cooling system is operated seasonally, regardless of actual ambient temperature |
cooling system is periodically inspected and excessive leakage or bleed off is corrected; cooling system is operated only during hot weather |
dissolved solids content of cooling system water is periodically monitored and water bleed off is adjusted appropriately; leaks are repaired promptly; cooling system operation is linked to environmental controls |
Shading - Application |
shading material is applied on schedule on a yearly or more frequent basis |
shading material is applied as needed, but only when weather will remain clear until material is well-dried |
automatic shading is provided by movable curtains in the greenhouse |
Shading - Removal |
easily removed shading formulations are used where appropriate; shading material is allowed to be removed by snowfall or on schedule with water and scrubbing |
easily removed shading formulations are always used; shading material is allowed to be removed by snowfall or on schedule with water and scrubbing |
no removal of external shading is required; automatic shading is provided by movable curtains in the greenhouse |
Spill Cleanup (maintenance-related chemicals) |
maintenance staff know where spill clean-up materials are kept; spills are cleaned up fairly promptly |
maintenance staff know where spill clean-up materials are kept; spills are cleaned up as soon as possible |
maintenance staff know where spill clean-up materials are kept; spills are cleaned up as soon as possible; secondary containment or spill absorption material is used where appropriate |
Disposal of Plastic Coverings |
sanitary landfill |
sanitary landfill |
recycle |
Water Control |
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External & Internal Drainage |
drainage problems are identified and prioritized for repair |
drainage problems are identified and prioritized for repair; drainage issues are systematically resolved |
drainage problems are identified and prioritized for repair; drainage issues are systematically resolved; drainage in and around structure is visually inspected as weather conditions determine; proper grading in and around structures prevents ponding; landscape plantings kept away from drainage system; pests prevented from tunneling in, under or around structure |
Irrigation Systems |
irrigation leaks are identified |
irrigation systems are inspected; leaks are identified and prioritized for repair |
hose couplings and other connections are kept tight and leak free; irrigation leaks are repaired immediately upon discovery; periodic inspections are conducted; algae accumulation on greenhouse floors is used as an indicator of system failure |
Structural Leaks |
greenhouse structural leaks are identified and prioritized for repair |
structural leaks are repaired systematically |
structural leaks are repaired systematically; glazing is inspected routinely |