AEM Tier 2 Worksheet
Greenhouse Renovation and Construction
Background
Glossary
Backflow: The action of water by siphon pressure or
gravity to flow back into its source. Project responsibility for renovation and construction of new greenhouses should be
assigned to a person or group thoroughly familiar with the best standards for greenhouse
Backflow Prevention: A device that prevents the design and construction. The responsible party should also be familiar with the operation of
flow of nutrients or pesticides back into the source a greenhouse. The future users of the greenhouse under construction should be involved in
water; one of the most important aspects of planning, design specifications, and equipment selection.
greenhouse safety.
New greenhouse construction is managed and inspected by properly trained and authorized
Curbed Concrete Pad: Concrete flooring personnel. Principles allowing facilities to be cleaned easily are followed. Records regarding
constructed to restrict and inhibit the movement of successful and unsuccessful components are considered during renovation efforts.
spilled liquids or solids within raised edges.
All facility mechanical, pump, sump, drain, etc. systems are inspected before being
Disposal Systems: Specific collection sites for used accepted. Systems and equipment are put on a recommended preventive maintenance
containers. schedules and monitored for problems. All broken components or systems are repaired as
soon as possible, and are tagged or otherwise marked in the interim so that all users are
Eyewash: A fixed unit able to provide a persistent aware of potential system faults.
supply of clean water capable of effective rinsing of
the eye area in the event of a spill or splash. (Continued on page 2)
Material Storage Data Systems (MSDS): a
Agricultural Water Quality Principle
collection of mandated information provided by the
manufacturer for the proper storage and use of any
Due to the amount of chemicals, both pesticides and fertilizers, used in the greenhouse,
chemical. construction and renovation must be undertaken with regard to safe storage, containment
(Continued on Page 2) and use. Steps should be taken to inhibit electrical fire, flooding and exposure to
employees. It is most important to prevent spills and leaching from entering the ground
and nearby water sources.
AEM Tier 2 Worksheet 鈥? Greenhouse Renovation & Construction - 6/05 Page 1 of 5
Glossary continued 鈥?
Passive Temperature Control: Using shutters, vents, shading
and other systems to adjust indoor temperature without benefit
of additional coolers or heaters; temperatures tend to follow
outdoor extremes.
Passive Ventilation: Non-automated ventilation such as
opened windows and shutters that allow airflow in and out of
the greenhouse without relying on electric fans and vents.
Personal Protective Equipment (PPE): clothing and gear
worn for protection from exposure to chemicals during mixing
and application of pesticides.
PPE Area: A designated area for easy access of all personal
protective gear worn by employees involved in the use of
pesticides and fertilizers.
Secondary Containment: A structural barrier constructed to
contain the capacity of the original container should a spill
occur.
AEM Tier 2 Worksheet 鈥? Greenhouse Renovation & Construction - 6/05 Page 2 of 5
AEM Tier 2 Worksheets
Greenhouse Construction Potential Concern
Factors Needing Lower Higher
Assessment 1 2 3 4
gravel floor remains wet, no
some drains to sanitary gravel floor, no drains to
drain to sanitary sewer
How is the floor
drains to sanitary sewer
sewer; remainder gravel sanitary sewer
constructed?
See Pesticide Storage, Fertilizer See Pesticide Storage, See Pesticide Storage, See Pesticide Storage,
How are chemicals stored?
Storage Fertilizer Storage Fertilizer Storage Fertilizer Storage
no special consideration
mixing/loading pad with sloped, mixing/loading pad with
given to mixing/loading
curbed concrete pad or other sloped, curbed concrete pad;
Is the mixing/loading area activities or location
containment mechanism; tray available for small
equipped for specific
chemical resistant tray used quantities
needs?
during measurement to contain
possible spills
no special provisions are
adequate, ventilated, application equipment is
made for application
temperature-controlled space is stored in general use
Are specific application equipment storage
provided for application areas
equipment storage needs
equipment storage; application
addressed?
equipment is stored near, but not
with, chemicals
adequate space is provided for clean PPE is stored in no special provisions are
PPE storage; both clean and dirty general use areas; dirty PPE made for storage of PPE
Is personal protective
PPE are stored near bathrooms, is discarded or stored in
equipment (PPE) storage
but in separate areas chemical storage areas or
addressed?
near bathrooms
no special provisions are no consistent policy for
designated area for disposal, no special provisions are
made for cleaning PPE or handling used protective
cleaning includes washing made for cleaning PPE or
Is facility designed for
clothing; no designated area
machine and dryer contaminated clothing; contaminated clothing
cleaning and disposal of
for disposal or cleaning of
disposable PPE鈥檚 generally
PPE?
PPE
used
AEM Tier 2 Worksheet 鈥? Greenhouse Renovation & Construction - 6/05 Page 3 of 5
AEM Tier 2 Worksheets
Greenhouse Construction Continued Potential Concern
Factors Needing Lower Higher
Assessment 1 2 3 4
manual controls
temperature control,
temperature and ventilation control
What controls are
passive ventilation
integrated into building
construction?
backflow prevention on
backflow prevention on water supply
How is backflow
water supply, but not within
prevented?
facility
no shut-offs available
frequent hose bibs and/or automatic shut-
Is water delivery in
offs at hose handles where water pressure
proximity to use?
allows
portable systems provided
Portable systems provided where needed; portable systems
where needed; no fixtures
some permanent secondary containment provided where
built-in, e.g., for fertilizer injection needed; some
Are secondary
systems; decisions regarding secondary fixtures
containment systems
containment based on fertilizer and
(chemical storage)
pesticide storage, mixing/loading
concerns addressed?
activities, frost heaving; tank seats and
tank anchors are considered in designing
secondary containment systems
AEM Tier 2 Worksheet 鈥? Greenhouse Renovation & Construction - 6/05 Page 4 of 5
AEM Tier 2 Worksheets
Greenhouse Construction Continued Potential Concern
Factors Lower Higher
Needing 1 2 3 4
Assessment
no special area for worker safety no special area
There is an emergency action plan in all of the following are provided, but not
place; staff are trained in the proper in a systematic way: eyewash, deluge provided; half of the following for worker
shower, first aid kit, spill response kit, provided in the immediate area safety provided;
use of: eyewash, deluge shower, first
aid kit, spill response kit, fire fire extinguishers, telephones, of the greenhouse: eyewash, safety needs are
What
emergency phone numbers, material spill response kit, deluge not readily
extinguishers, telephones, emergency
consideration is
phone numbers, material safety data safety data sheets shower, first aid kit, fire available;
given to worker
sheets; all components are easily extinguishers, telephones or 2- emergency
safety?
communication
located way communication system for
emergency notification, systems need
emergency phone numbers, improvement
material safety data sheets
spill materials
spill materials are available locally; spill materials immediately available; spill materials stored inside the
Are spill
may not be
absorbent socks or other pads absorbent socks or other pads building yet may not be at hand
concerns met
available; spills
specifically provided to prevent specifically provided to prevent spilled
and controls
may move
spilled material from reaching material from reaching drainage system;
immediately
beyond
drainage system; mechanical shutoffs spills are readily contained
available?
greenhouse via
provided to 鈥渓ockout鈥? drain system in
gravel floors
the event of a spill
portable systems provided where no specific
needed; some permanent secondary waste disposal
containment built-in, e.g., for fertilizer area provided
injection systems; decisions regarding
What disposal
secondary containment are based on
systems are in
fertilizer storage, pesticide storage,
place?
and mixing/loading activities; frost
heaving, tank seats and tank anchors
are considered in designing secondary
containment systems
AEM Tier 2 Worksheet 鈥? Greenhouse Renovation & Construction - 6/05 Page 5 of 5
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