 |
|
 |
Even when not required by regulations, the following best practices are recommended.
Handling Lead-Acid Batteries (Use of Personal Protective Equipment)
Lead-acid batteries that are damaged or missing a cap can leak acid. Battery acid can severely damage your eyes and skin, so personal protective equipment should be worn when handling batteries. More specifically, follow these guidelines:
- Wear acid-resistant gloves and safety glasses;
- Double-bag damaged batteries in polyethylene plastic bags
that are at least six millimetres in thickness;
- If you can replace a missing battery cap, do so immediately,
otherwise consider a battery with a missing cap "damaged"
and double-bag the battery in six-millimetre polyethylene plastic
bags.
Lead-Acid Batteries - Storage & Labelling
- Small quantities of lead-acid batteries should be stored in acid-resistant
tubs; large quantities should be stored in an isolated area with no floor
drains; and spent lead acid batteries should be stored indoors (or if outdoors,
under a cover) and on an impervious surface.
- Freezing temperatures may cause spent batteries' cases to crack.
- Storage areas should be sealed with an acid-resistant material and have
a containment berm.
- Piles of lead-acid batteries that are being stored on pallets should not
be stacked higher than three feet, and the piles should be covered and stored
within an enclosed area. (Ideally, lead-acid batteries should be stored
in a single layer because stacking increases the risk of short circuits
and acid leaks.)
Lead-Acid Batteries - Spills & Acid Debris
- Keep the following supplies in your lead-acid battery storage
area: acid-resistant gloves; a supply of polyethylene plastic
bags (six millimetre or thicker, and sized to contain the largest
battery expected); rags or disposable wipes for acid leak clean-up;
appropriate absorbent for spill clean-up; and a weather-resistant
pen or marker for marking used or damaged batteries with the
date they were taken out of service.
- It is also a good safety precaution to have an eyewash station in the
area, or a sign indicating the location of the nearest eyewash.
- Keep a supply of lime or baking soda on hand to neutralise
acid spills.
- If there is a battery acid spill: a) double-bag the leaking
battery in 6 mm polyethylene plastic bags; b) clean the spilled
battery acid with rags or disposable wipes and use appropriate
absorbent; and c) manage the clean-up material as hazardous
waste by placing it in an acid debris waste accumulation container.
Clean-up debris would also likely contain lead and would have
to be managed as such, not just as acidic waste.
Lead-acid batteries are classed as hazardous waste and managed
according to the requirements in the Hazardous Waste Regulations
2005. The current Battery and Accumulators (Containing Dangerous
Substances) Regulations 1994 (and Battery and Accumulators (Containing
Dangerous Substances) Regulations (Northern Ireland) 1995) are limited
in scope. They restrict the amount of mercury in batteries, require
appropriate steps to be taken to ensure that spent Nickel Cadmium
batteries are collected separately for recovery or disposal, require
the labelling of environmentally hazardous batteries, and the easy
removal of these batteries from appliances.
Aerosols/Paint Management
- Implement a "first in, first out" use pattern for aerosol cans and order new cans on an as needed basis to ensure that cans are used up prior to opening new cans.
- Carefully determine whether spent aerosol cans are hazardous or non-hazardous. If contents and/or propellant remain(s) in the can, it is likely a hazardous waste; if there is neither content nor propellant, then it is likely a non-hazardous waste.
- To minimise disposal costs, ensure that truly empty aerosol
containers are either sent to a scrap-metal recycler or disposed
of in the waste.
- Minimise excess liquid paint by making efficient use of paint "poured"
for use, i.e., use what you pour.
Pesticides
- Keep pesticides dry and out of the way of activities that might puncture or knock over a jug or rip open a bag or box.
- Put a bund around the floor to prevent chemicals from spreading
to other areas, if pesticides spill.
- If a spill does occur, an impermeable (waterproof) floor, such as concrete, should virtually eliminate any seepage of chemicals into the ground. Cleanup should be immediate because many pesticides will penetrate and be absorbed into concrete.
- Display best management practices related to pesticides on the
walls of the grounds/vehicle maintenance facility so that they
are easily accessible and remind the staff to handle pesticides
properly.
- Secondary containment provides an impermeable floor and walls around the storage
area, which will minimise the amount of pesticide seeping into
the ground if a bulk liquid pesticide storage container should
leak.
- Mixing/loading pads provide secondary containment during the dilution or transfer of pesticides to spraying equipment or nurse tanks.
- Store pesticides in original containers that are closed, labelled, and in
a secure area out of reach of children and pets. Pesticides should
not be stored near food.
- Use rubber gloves when handling pesticides and use an appropriate breathing zone protection if you are using products extensively.
- Do not use or give away banned pesticides or pesticides that are no longer registered for use.
- Do not reuse pesticide containers.
- Consider implementing an Integrated Pest Management (IPM) programme
at your college or university. IPM combines chemical, cultural,
and biological control practices into one program to manage pest
populations. In an IPM program, pesticide applications are carefully
timed and combined with other pest management practices to reduce
the need for frequent applications. Identify the pests, determine
pest populations and damage, and make pesticide applications only
when necessary, using the lowest rate necessary for adequate pest
control. Minimising the amount of pesticide used reduces costs
and helps protect the environment.
- Disposal of pesticide wastes, unused pesticides, residues, and
cleanup materials needs to be evaluated to determine if there
are any applicable to any legislation. Agriculatural colleges
(and other institutions) using exstensive pesticides should refer
to the DEFRA
Green Code
Parts Cleaner/Degreaser
To assist in reducing potential impacts to the environment or worker exposure from parts cleaning, the following best practices should be followed:
- Keep the parts cleaner closed when not in use.
- Reduce solvent evaporation by increasing freeboard and placing hoods or covers on all parts cleaning tanks.
- Utilise less toxic non-chlorinated solvent cleaners or aqueous-based cleaners
to reduce worker exposure and hazardous waste generation.
- Use one multi-purpose solvent instead of many different solvents to increase recycle potential of the solvent.
- Consider using a service to maintain your parts cleaning unit.
- Consider pre-cleaning parts with a rag or wire brush.
Waste Reduction and Recycling
To minimise the amount of waste generated at your facility, consider the following:
- Mix only the amount of paint needed for a job.
- Use self-contained sinks and tanks when cleaning with solvent.
- Do not accept "donations" of paints, chemicals, oil, etc. if it is not absolutely clear what is in the substances and/or if the campus has no immediate use for them. Waste disposal costs can be expensive.
- Reduce hazardous waste generated by minimising the potential for cross-contaminating
of wastes by ensuring, for example, that parts cleaners that do
not contain listed wastes are segregated from listed wastes from
other sources (for example, aerosols); and that non-hazardous
materials (e.g., rags, oils, etc.) are not contaminated by parts
washer solvents that are listed hazardous wastes.
Vehicle and Equipment Fueling
Your facility may have a fueling system (diesel, petrol, etc.)
for vehicles or equipment that involves aboveground storage tanks.
To minimise the potential for fuel spills and leaks and reduce their
potential to enter the surface water system, implement the following
best practices:
- Cover catch basins with storm drain covers while fueling.
- Make certain that spill kits containing dry, absorbent materials for spill response are located near the area of fueling and that staff are trained in their use.
- Ensure that the transfer of fuel from/to fuel tanks and/or aboveground storage tanks is monitored by an attendant.
- Provide spill response training for personnel.
- Post signs that give fueling instructions, spill response procedures, emergency contact information and best practices.
- Check loading/unloading equipment (valves, pumps, flanges, and connections) regularly for leaks. Replace worn or broken equipment.
Transformers
Manufacture of PCBs was halted in the 1970s, but some PCBs may still be found in transformers, capacitors, heat transfer systems and hydraulic systems.
- All PCB transformers should be leak proof.
- Buildings used to store transformers should have a roof and
walls that prevent rainwater from reaching the stored material
and items; the floor should be impermeable with continuous bunding
that is a minimum of 6" high.
- No drain valves, floor drains, expansion joints, sewer lines
or other openings that would permit liquids to flow from the bunded
area should be present in buildings/areas used to store transformers.
- The floor and bunding in the building/area used to store transformers
should be constructed of continuous smooth and impervious materials,
such as Portland cement concrete, to prevent penetration of PCBs.
- The storage facility should be located above flood water level.
- Transformer oil should be stored in proper storage containers such as steel drums without a removable head designed, constructed and operated with safety requirements for flammable and combustible liquids.
- All transformers should be labeled with respect to the PCB content of the transformer oil (e.g., "Non-PCB Containing Oil") and the labels should be maintained in legible condition.
Non-Stormwater Discharges
Most grounds/vehicle maintenance facilities have outdoor activities
that include, but are not limited to, equipment/material cleaning
and maintenance. These activities may result in liquids being released
to pavement, which could result in non-stormwater discharges to
the surface drain system. The following activities may assist in
minimising non-surfacewater discharges:
- Inspect the storm drain system, including catch-basins, inlets
and pipes, and discharge points (at least quarterly) for evidence
of non-surfacewater discharges resulting from grounds/vehicle
maintenance activities.
- Eliminate non-surfacewater discharges to the surface drain system
such as vehicle/tools/equipment wash water, and building washing.
- Keep catch basin inlets free of debris.
Vehicle and Equipment Washing
Vehicle and equipment washing have the potential for contaminating
receiving waters through the discharge of grit, oil and other contaminants.
- Soapy or oily vehicle wash waters must either be collected for off-site disposal or discharged to the sanitary sewer, if allowed by the local sewer authority.
- Consider using a commercial car wash if your facility is not equipped properly.
Vehicle Use
To assist in mitigating potential impacts to the environment from vehicle driving, follow these best practices:
- Keep tyre pressure at the recommended level to improve fuel
efficiency.
- Make certain that the vehicle's exhaust meets inspection requirements
to minimise impacts to air quality.
- Ensure that your equipment/vehicles undergo regular tune-ups,
and change the oil frequently. This will prevent your car's fuel
mileage from declining as it gets older and extends the life of
the vehicle.
- Avoid making off-campus errands during rush hours. Congested
conditions with their slow speeds, frequent acceleration, and
stop-and-go movement increase air pollution. Also, if you find
yourself doing multiple errands off-campus throughout the day,
try to combine the errands. When you first start a car after it's
been sitting for more than an hour, it pollutes up to five times
more than when the engine is warm.
- Buy "green" vehicles.
- Avoid idling; this will conserve fuel.
Outdoor Handling of Material
To minimise the likelihood of discharge of pollutants to storm drains from
outdoor loading and unloading of material involving aboveground
storage tanks, adhere to the following best practices:
- Avoid transferring materials close to storm drain inlets.
- Transfer liquids only in paved areas. Portland cement paving should be used if the liquid is asphalt reactive.
- Provide contractors and haulers with copies of pertinent best management practices (BMPs). Require contractor/hauler adherence to BMP specifications. Verify proper waste disposal practices of contractors.
- Protect all loading/unloading activities from rainfall, run-on and wind dispersal to the maximum extent practicable. Viable options include conducting loading/unloading under existing cover, or moving indoors.
- Maintain adequate supplies of spill response equipment and materials in accessible locations near areas where spills may be likely to occur.
- Clean up minor spills immediately.
- Conduct regular inspections of storage and containment equipment and promptly correct deficiencies to this equipment as necessary.
Outdoor Storage of Material
Storing material outdoors, whether it is equipment, chemicals or
containers, can result in potential surface water contamination.
Follow these best practices to minimise potential impacts to surface
water runoff:
- Avoid dispensing from drums positioned horizontally in cradles. Dispensing
materials from upright drums equipped with hand pumps is preferred. Always
use drip pans and self-closing spigots if dispensing from horizontally positioned
drums.
- Store drums and containers on pallets or other structures to
keep the container out of contact with surface water.
- Store all materials in their original containers or containers approved
for that use. Ensure that all containers are appropriately sealed. Store empty
containers indoors or under cover before moving them off-site.
- Properly label all chemical containers with information, including their
contents, hazards, spill response and first aid procedures, manufacturer's
name and address, and storage requirements. Maintain copies of MSDS on file
for any materials stored and/or handled.
- Reduce the quantities of chemicals stored outside to the minimum volume
required based on variables such as release potential, usage, storage capacity,
and chemical shelf life.
- Maintain adequate supplies of spill response equipment and materials in
accessible locations near areas where spills may be likely to occur.
- Post signs at all chemical storage locations in clearly visible locations
noting the materials stored, emergency contacts, and spill cleanup procedures.
- Perform and document periodic inspections in a logbook. Inspection items
should include the following: external corrosion, structural failure, spills
and overfills due to operator failure, failure of piping system (pipes, pumps,
flanges, couplings, hoses, and valves), visually inspect new tanks or containers
for loose fittings, poor welds, and improper or poorly fitted gaskets, and
Inspect tank foundations and storage area coatings.
- Whenever possible store materials under a roof or otherwise
cover stored materials to minimise surface water impacts.
- Make sure waste container covers are closed except when adding
waste to prevent infiltration and subsequent release of oils to
receiving waters.
Waste Handling and Disposal
Best practices related to waste handling and disposal include the following suggested activities:
- Perform regular housekeeping activities in waste storage areas.
- Reuse or recycle materials whenever possible.
- Inspect waste management areas for spills and waste management containers
for leaks.
- Track waste generated, evaluate the process generating the waste and look
for ways to reduce waste generation.
- Characterise waste streams.
- Find substitutes for harmful chemicals; properly dispose of unusable chemical
inventory.
- Segregate and separate wastes.
- Do not dispose of liquid wastes such as oils or hazardous materials
into waste containers.
- Maintain adequate supplies of spill response equipment and materials in
accessible locations near areas where spills may be likely to occur.
- Equip waste transport vehicles with spill containment equipment.
- Perform and document in a logbook periodic inspections of hazardous and
non-hazardous waste storage areas. Inspection items should include the following:
external corrosion, structural failure, spills and overfills due to operator
error, failure of piping system (pipes, pumps, flanges, couplings, hoses,
and valves), visually inspect new tanks or containers for loose fittings,
poor welds, and improper or poorly fitted gaskets, and inspect tank foundations
and storage area coatings.
Employee Training
Training employees in proper procedures to reduce your facility's impact on the environment is a best practice and in some instances a regulatory requirement. More detailed training information is provided in the regulatory requirements sections of the EVC. Employee training may include the following:
- Spill response training for personnel who handle hazardous material,
- Fork lift training,
- Surface water pollution prevention education,
- Hazardous materials and waste management,
- Emergency preparedness, and
- Awareness-level training, for example, a general overview of
the school's environmental management system.
General Maintenance/Repair Work
When performing general vehicle repair/maintenance work near floor drains, implement the following to the maximum extent practical:
- Drain and crush oil filters (and oil containers) before recycling or disposal. Store crushed oil filters and empty lubricant containers in a leak-proof container.
- Drain and properly dispose of all fluids and remove batteries from vehicles, and equipment.
- Use biodegradable products and substitute materials with less hazardous properties where feasible.
- Maintain clean equipment by eliminating excessive amounts of external oil and grease buildup. Use water-based cleaning agents or non-chlorinated solvents to clean equipment
- Store mechanical parts and equipment that may yield even small amounts of contaminants (i.e., oil or grease) away from drains.
- Sweep or vacuum the shop floor frequently.
- Designate specific areas indoors for parts cleaning.
- Clean up any spills promptly.
- Keep rags, mops, absorbents, and other cleanup supplies readily accessible to all work areas.
- Never sweep or flush wastes into a floor drain.
- Promptly transfer drained fluids to a designated waste storage area.
- Place bulk fluids, waste fluids, and batteries in secondary containment to capture accidental spills.
- Service "pits" should have concrete floors and not earthen floors or floors with drains.
- Service bays within the facility should be segregated by operation (brakes, radiator, oil changing, etc.) to avoid cross-contamination.
|
 |