According to the Environmental Protection Agency (EPA), hazardous waste is generally classified into four main categories:

1. Characteristic Wastes: These exhibit at least one of four hazardous traits: ignitability (flammable, like gasoline), corrosivity (can rust or decompose materials, like car batteries), reactivity (unstable and can explode, like aerosol cans), or toxicity (harmful when ingested, like lead-based paint).

2. Listed Wastes: These are specific wastes from manufacturing and industrial processes that the EPA has officially designated as hazardous. They include byproducts from processes that use solvents, pesticides, and other chemicals.

3. Universal Wastes: These are commonly generated hazardous items that are subject to streamlined regulations. Examples include batteries, pesticides, mercury-containing equipment (e.g., bulbs), and some lamps.

4. Mixed Wastes: This category includes waste that contains both hazardous and radioactive components, making it subject to regulation by both the EPA and the Nuclear Regulatory Commission.

Professional lead-paint abatement companies use a variety of methods to remove lead-based paint, depending on each particular situation. Some of the most common methods include:

• Total removal: $8–$17 per square foot

• Demolition and replacement: $1,000–$15,000 per project

• Encapsulation: $4 per square foot

• Enclosure: $10 per square foot

• Chemical stripping: $10–$17 per square foot

Chlorine has a shelf life of between six months and several years, depending on its type and formulation. Liquid chlorine can often lose its effectiveness in just a few weeks. Pool owners can find themselves with overstock that they need to get rid of. The best way to dispose of excess chlorine is to take it to a hazardous waste collection site and let the pros handle it.  

You may see specialty products for sale to remove lead dust, such as D-Lead surface wipes. But you do not need to buy a special cleaner just for lead dust. A regular all-purpose cleaner, like 409 or something similar, is sufficient for cleanup. Just make sure to follow the manufacturer's directions when using it and to dilute with water.