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Earth Science
Laboratories, Inc.

113 SE 22nd Street
Suite 1 
Bentonville, AR  72712

Phone

(800) 257-9283 
 
(479) 271-7381

customerservice@earthsciencelabs.com
 

Dosage Rates

For fish bearing lakes and ponds, drinking water reservoirs, irrigation canals and other applications, the EarthTec® dosage rate is 0.06 ppm copper maximum, or 1 gallon EarthTec® for each million gallons of water.

Fish-Bearing Applications (0.06 ppm copper)

Pond Volume (Gallons) EarthTec® (Gallons) EarthTec® (Ounces)
500   0.1
1,000   0.1
3,000   0.4
5,000   0.6
10,000   1.3
25,000   3.2
50,000   6.4
100,000   12.8
300,000   38.4
500,000   64.0
600,000   76.8
750,000   96.0
1,000,000 1  
5,000,000 5  
10,000,000 10  
50,000,000 50  
100,000,000 100  
1,000,000,000 1,000  

For applications without fish, such as fountains, water features, wastewater lagoons and animal confinement pits, the EarthTec® dosage rate ranges from 0.6 ppm to 2.0 ppm copper. The dosage chart provided below is 0.6 ppm copper, or 1 gallon of EarthTec® for each 100,000 gallons of water.

Fish Free Applications (0.6 ppm copper)

Pond Volume (Gallons) EarthTec® (Gallons) EarthTec® (Ounces)
500   0.6
1,000   1.3
3,000   3.8
5,000   6.4
10,000   12.8
25,000   32.0
50,000   64.0
100,000 1  
300,000 3  
500,000 5  
600,000 6  
750,000 7.5  
1,000,000 10  
5,000,000 50  
10,000,000 100  
50,000,000 500  
100,000,000 1,000  
1,000,000,000 10,000  

The above dosage recommendations are from accepted practices in the industry and apply to normal water conditions. Earth Science Laboratories, Inc. does not warrant these applications as absolute nor are they intended to supersede federal, state or local restrictions and/or regulations.

EarthTec® Application Guidelines

EarthTec® is self-dispersing. Spraying is not necessary unless is it mixed with herbicides.

Table 1.  Gallons of EarthTec® per acre to achieve the desired copper ion (Cu++) content

Depth of water
(feet)
0.06 ppm
(Cu++)
0.1 ppm (Cu++) 1.0 ppm (Cu++)
1 0.33 0.55 5.5
2 0.66 1.1 11
3 1.0 1.65 16.5

 

Table 2.  Quarts of EarthTec® per acre to achieve the desired copper ion (Cu++) content. 

Depth of water
(feet)
0.06 ppm
(Cu++)
0.1 ppm (Cu++) 1.0 ppm (Cu++)
1 1.3 2 22
2 0.66 1.1 44
3 4 6.5 66

Table 3.  EarthTec® Required for Treatment of Different Genera of Algae

Organisms 0.06 ppm of Copper (Cu++) 0.10 ppm Copper (Cu++)
Cyanophyceae
(Blue-green algae)
Anabaena, Aphanizomenon, Cylindrospermum, Gloeotrichia, Microcystis, Oscillaria Nostoc, Calothrix, Phormidium, Symploca
Chlorophyceae
(Green)
Cladophora, Closterium, Coelastrum, Conferva, Spirogyra, Ulothrix, Zygnema Chlorella, Chara, Nitella, Pithophora*, Scenedesmus
Diatomceae
(Diatoms)
Asterionella, Fragilaria, Melosira, Gomphonema, Tabellaria, Navicula Cymbella, Neidium
Achnanthes
Protozoa
(Flagellates)
Dinobryon, Synura, Uroglena, Volvox Glenodinium Chlamydomonas, Eudorina, Hawmatococcus, Pandorina

*If it is heavy, use 1.0 ppm concentration.

Table 4.  EarthTec® Required for Treatment of Different Species of Bacteria

Bacteria 0.1 ppm - 1.0 ppm of Copper (Cu++)
Vibrio Cholera

E. coli, Streptococcus faecalis

0.5 ppm for 24 hours

0.1 ppm for 24 hours; 0.5 ppm for 6 hours

EarthTec® Calculation Formula:

1 ppm copper ion (Cu++) = 1 gallon EarthTec® / 60,000 gallons of water
0.1 ppm copper ion (Cu++) = 1 gallon of EarthTec
® / 600,000 gallons of water
0.06 ppm copper ion (Cu++) = 1 gallon of EarthTec
® / 1,000,000 gallons of water
1 acre foot = 326,000 gallons of water