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Dosage Rates

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

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 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

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® (ET) 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® (ET) 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

EarthTec® is a division of Earth Science Laboratories
106 B North 37th Street Rogers, AR 72756 US Toll Free (800)257-9283 Phone (479)619-2713
customerservice@earthsciencelabs.com