STORAGE AND MIXLOAD FACILITIES

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STORAGE AND MIXLOAD FACILITIES FOR LARGE AND
SMALL OPERATIONS
Paul E.
Sumner
Extension Engineer
Bio and
Ag
Engineering Department
Tifton
, GA
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Why Have a Mix/load Facility?
High Risks for Point Source Contamination of
Surface Water and Ground Water
Because of the Concentration, Quantity and Type
of Products at the Site
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Site Selection
Environmental Assessment

• Existing Site
• New Site
• Facility Site Plan
• Remodeling Existing Facilities

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Adjoining Property
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Wildlife and Habitat
Water Quality
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Secondary Containment

• Contain liquid product spills from
• storage/equipment
• Prevents runoff

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Mixing and Loading Pad Functions
PESTICIDES

• Storage and Handling
• Rinsing and Transfer
• Containment
• Leaks and Spills

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Mixing and Loading Pad Functions
SPRAYER

• Load
• Cleanout and Rinse
• Exterior Wash
• Storage

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Lawn and Turf
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Portable Containment
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Aerial Application
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Commercial
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Agricultural
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Batch Mixing Area
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Equipment Storage
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Field Mixing And Loading
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Apply Rinsate to a Label Site
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Components of a Mixing, Loading and Storage
Facility
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Mixing and Loading Pad
Shower/Eye Wash
Pesticide Door w/ Vent
Herbicide1
Herbicide2
Fungicide/ Insecticide
Rinsate Tanks
Sink Drained into 5 gallon bucket
Transfer Pump
End View
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80
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Rinsate Tanks 80 gal cone bottom
12 x 10 Door
8 x10
Fertilizer Storage
Pesticide Storage
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Mixing Loading Area
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Side View
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Transfer Pump
Herbicide1
Herbicide2
Fungicide/ Insecticide
Pesticide Door w/ Vent
Rinsate Tanks
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Sink Drained into 5 gallon bucket
End View
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A
6 x 3 continuous walls
Tolet
Gravel
Forklift ramp
Stainless Steel Sumps 1 dia. X 1
2 Slope
2 Slope
Seed Storage
Mixing Loading Pad
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Chemical Storage
Fertilizer Storage
Wooden Center Wall
2 Slope
2 Slope
2 Overhang
Forklift ramp
3 feet x 4 inch curb
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Storage areas insulated for an R11 All interior
walls sheet metal over insulation
8 Overhang
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• Stainless Steel
• Easily Cleaned Out

SUMPS
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Filter Recovered Liquid
Filter
Observation Port
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More Roof Overhang Needed Overhang ½ Eve Height
Pesticide Storage Building
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Eye Wash / Shower Station
Spill Kit
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Pesticide Storage Room
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Pesticide Storage Room
Ventilation
Paper
Lighting
Products
Containment Shelves
Pesticides
Pesticides
Insecticide
Pesticides
Pesticides
Sump
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Shelving
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STORAGE VENTILATION
150 cfm small buildings gt 1000 ft3 6 air
exchanges per hour
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Equipment Ramps
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Steel Specifications Reinforcing steel should be
Grade 60 4 reinforcing bar (epoxy coated is
preferred). Lap all splices 12 inches
minimum. Provide adequate support for all
reinforcing bar during concrete placement to
maintain position in the slab.
CONCRETE SPECIFICATIONS Type I or Type II
cement. Minimum 28 day strength 4,000 psi. Air
entrainment 6 percent /- 1 percent. Water-cement
ratio 0.40-0.45. Slump 2-4 inch. For improved
workability a water reducing agent (plasticizer)
should be added the plant or site and mixed
according to manufacturers recommendations. Addit
ional water should not be added. Moist cured for
not less than 14 days (28 days preferred). No
cold joints if possible. Water stops at all cold
joints. Minimum vibration during
placement. Maximum aggregate size 1 inch.
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Washed Gravel Sloped from pad
6-10
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Loading Pad
Mixing area
2 Slope
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Mixing and Loading Pad
6 x 6 continuous wall
2 Slope
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2 Slope
Concrete Pad 6 inches
Double Wall Stainless Steel Sump 2 x 2 X 6
deep with 0.125 plate cover, 1/2 holes drilled
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Concrete Design The concrete slab is designed as
a floating slab. Depending on the complexity of
the final design, the slab can be poured integral
or may require separate pours. If separate pours
are necessary, waterstops should be used at the
cold joints. Control joints should be at the
high points so that the joint can be maintained
and most likely will not be exposed to water for
extended periods of time. Rebar should be
installed on 12OC and in the footers.
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5
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Water Line Fill
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Loading Pad
Drop Down Wall
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Side View A-A
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Sprayer Loading pad area is located above the
sump and rinsate storage tank pad.
Transfer Pump
Drop Down Wall
Shower/Eye Wash
Rinsate Tank
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End View
Sink Drained into 5 gallon bucket
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Post Signage
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Enclose area with fence and Post
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Monitor filling of Spray Tank
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Adding Pesticides
Below Eye Level
Wind from Behind
Wear Proper Safety Equipment
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Pesticide Spill Kit
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Cleaning Sprayers

• Ratio 1 Part Mixture to 6-10 Parts Clean Water
• Unused Mixture 4 12 Gallons
• Clean Water Required 40 70 Gallons
• Spray Mixture on Labeled Site or Store in Holding
  Tank

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Disposal of Unused Mixtures

• Dont mix more than needed
• Spray onto a labeled crop or site
• Transfer to a holding tank to be used later for
  make up water (20 by volume)

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Maintenance of Facilities

• Routine Inspections
• Good Housekeeping
• Drainage
• Plumbing
• Corrosion
• Concrete Deterioration
• Protective Treatments

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Clean Nozzles
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Environmental Planning