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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.

Fish-Bearing Applications (0.06 ppm copper)

Water Volume (Gallons)

EarthTec® (Gallons)

EarthTec® (Ounces)

EarthTec® (Milliliters)

500

 

 

2.3

1,000

 

 

4.5

3,000

 

 

13.6

5,000

 

 

22.7

10,000

 

1.5

 

25,000

 

3.8

 

50,000

 

7.7

 

100,000

 

15.4

 

300,000

 

46

 

500,000

 

76.8

 

600,000

 

92.2

 

750,000

 

115.2

 

1,000,000

1.2

 

 

5,000,000

6

 

 

10,000,000

12

 

 

50,000,000

60

 

 

100,000,000

120

 

 

1,000,000,000

1,200

 

 

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 1.0 ppm copper. The dosage charts provided below are 0.6 ppm copper or 1.0 ppm copper.

Fish Free Applications (0.6 ppm copper)

Water Volume (Gallons)

EarthTec® (Gallons)

EarthTec® (Ounces)

500

 

0.8

1,000

 

1.5

3,000

 

4.6

5,000

 

7.7

10,000

 

15.4

25,000

 

38.4

50,000

 

76.8

100,000

1.2

 

300,000

3.6

 

500,000

6

 

600,000

7.2

 

750,000

9

 

1,000,000

12

 

5,000,000

60

 

10,000,000

120

 

50,000,000

600

 

100,000,000

1,200

 

1,000,000,000

12,000

 

Fish Free Applications, Fountains (1.0 ppm copper)

Water Volume (Gallons)

EarthTec® (Gallons)

EarthTec® (Ounces)

500

 

1.3

1,000

 

2.6

3,000

 

7.7

5,000

 

12.8

10,000

 

25.6

25,000

0.5

 

50,000

1

 

100,000

2

 

300,000

6

 

500,000

10

 

600,000

12

 

750,000

15

 

1,000,000

20

 

5,000,000

100

 

10,000,000

200

 

50,000,000

1,000

 

100,000,000

2,000

 

1,000,000,000

20,000

 

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 or sprayed directly on algae mats.

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

Depth of water
(feet)

0.06 ppm
(Cu++)

0.12 ppm (Cu++)

1.0 ppm (Cu++)

1

0.4

0.8

6.5

2

0.8

1.6

13

3

1.2

2.3

19.6

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

Depth of water
(feet)

0.06 ppm
(Cu++)

0.12 ppm (Cu++)

1.0 ppm (Cu++)

1

1.6

3

26

2

3

6.3

52

3

4.7

9.4

78

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

Organisms

0.06 ppm of Copper (Cu++)

0.12 ppm Copper (Cu++)

Cyanophyceae
(Blue-green algae)

Cylindrospermum, Gloeotrichia, Microcystis

Anabaena, Aphanizomenon, Calothrix, Nostoc, Oscillaria, Phormidium, Symploca

Chlorophyceae
(Green)

Closterium, Conferva, Nitella, Spirogyra, Ulothrix

Chlorella, Chara, Cladophora, Coelastrum, Oedogonium, Pithophora*, Scenedesmus*, Zygnema

Diatomceae
(Diatoms)

Asterionella, Fragilaria, Gomphonema, Melosira, Navicula

Achnanthes, Cymbella, Neidium, Tabellaria

Protozoa
(Flagellates)

Dinobryon, Synura, Uroglena, Volvox

Chlamydomonas*, Eudorina, Glenodinium, Hawmatococcus, Pandorina

*If it is heavy, a higher ppm concentration may be necessary.

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

Bacteria

0.1 ppm – 0.5 ppm of Copper (Cu++)

Vibrio Cholera

E. coli

Streptococcus faecalis

0.5 ppm for 24 hours

0.1 ppm for 24 hours

0.1 ppm for 48 hours

EarthTec® Calculation Formula:

1 ppm copper ion (Cu++) = 1 gallon EarthTec® / 60,000 gallons of water
0.12 ppm copper ion (Cu++) = 1 gallon of EarthTec® / 500,000 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