Nautique

According to the product label, what is the maximum concentration of metallic copper allowed in a single treatment for aquatic weeds?

• 0.4 ppm
• 1.0 ppm ✓
• 9.1 ppm
• 14.9 ppm

Answer: Do not exceed 1.0 ppm metallic copper in any single treatment for aquatic weeds.

🔗 Source

In waters destined for drinking water, what additional requirement must be met?

• The water must be treated with a higher concentration of copper
• The application must be done via aerial spray only
• The water must receive additional and separate potable water treatment ✓
• The water must be tested for fish toxicity first

Answer: In waters destined for drinking water, must receive additional and separate potable water treatment.

🔗 Source

Which of the following is a listed application method for Nautique?

• Direct surface spray, subsurface through weighted hoses, aerial application, or metering/injecting into flowing water ✓
• Only direct surface spray in stagnant water
• Subsurface injection only in deep lakes
• Hand-spraying individual plants

Answer: Application methods include direct surface spray, subsurface through weighted hoses, aerial application, or metering/injecting into flowing water.

🔗 Source

When treating aquaculture ponds where fish are present, what is the maximum allowable concentration of metallic copper per treatment?

• 1.0 ppm
• 0.4 ppm ✓
• 9.1 ppm
• 13.2 ppm

Answer: Do not exceed 0.4 ppm when treating aquaculture ponds with fish present.

🔗 Source

What PPE is required for an applicator according to the label instructions?

• Nitrile or butyl rubber gloves, protective eyewear, and coveralls over long-sleeved shirt and long pants ✓
• Latex gloves, safety glasses, and short-sleeved shirts
• Chemical-resistant gloves, face shield, and shorts
• Nitrile gloves, sunglasses, and long pants only

Answer: Applicators must wear coveralls (Tyvek suit or similar) over long-sleeved shirt and long pants; socks and chemical resistant footwear; chemical-resistant gloves (nitrile or butyl rubber); and protective eyewear (goggles, safety glasses, or face shield).

🔗 Source

When applying Nautique to flowing water, how should the applicator determine the necessary drip rate (ml/min) to maintain the desired ppm?

• By measuring the water depth
• By measuring the plant density
• By using Table 2 based on the flow rate (cfs) ✓
• By calculating the total volume of the water body

Answer: For flowing water, use Table 2 to determine drip rate (ml/min) based on flow rate (cfs) to maintain desired ppm.

🔗 Source

What is the total metallic copper equivalent contained in Nautique?

• 13.2%
• 14.9%
• 9.1% ✓
• 1.0%

Answer: It contains Copper Ethylenediamine Complex (13.2%) and Copper Triethanolamine Complex (14.9%), providing a total metallic copper equivalent of 9.1%.

🔗 Source

If a user intends to treat waters containing rapidly reproducing toxic algae that pose a public health threat, what is required if they wish to apply copper at intervals shorter than 14 days?

• A permit from the EPA
• Authorization from applicable state, local or tribal water resources authorities ✓
• The use of a higher concentration of copper
• No additional authorization is required if the algae is toxic

Answer: In situations where rapidly reproducing toxic algal species pose a public health threat, must receive authorization from applicable state, local or tribal water resources authorities before applying copper at intervals shorter than 14 days.

🔗 Source