Water Quality Assessment and Pollution Detection in Creeks

Jodie, an authorised officer with the Environment Protection Authority (EPA) of Victoria, explains the process of checking water quality in a creek for pollution. The EPA responds to public reports of water pollution by sending officers to investigate. Jodie demonstrates how to collect water samples using a sample pole and bottle, which are then sent to a lab for testing pollutants like oils, metals, and pesticides. Field meters are used to measure parameters such as dissolved oxygen, salinity, and pH directly in the waterway. The results help determine if pollution levels are safe. EPA's efforts aim to ensure a healthy environment for all Victorians.

What is the primary role of an authorised officer with the EPA?

• To manage wildlife conservation

• To oversee waste management

• To investigate water pollution reports

• To monitor air quality

What tool is used to collect water samples without disturbing the creek bottom?

• A filtration device

• A water pump

• A sample pole

• A fishing net

Where are the water samples sent after collection?

• To a university lab

• To a government research center

• To an independent laboratory

• To a local EPA office

Which of the following is NOT a type of pollutant tested in water samples?

• Plastics

• Hydrocarbons

• Metals

• Oils

How are the lab results assessed?

• By comparing them to historical data

• By checking against guideline values

• By consulting with local authorities

• By public voting

What does a low level of dissolved oxygen in water indicate?

• High water quality

• Presence of pollutants

• Increased fish population

• Stable ecosystem

What is the expected salinity level for a freshwater creek?

• Below 1500

• Around 1500

• Exactly 1000

• Above 2000

What pH range is considered normal for a waterway?

• Between 10 and 12

• Between 8 and 10

• Between 6 and 8

• Between 4 and 5

What is the significance of EPA's water sampling efforts?

• To support industrial growth

• To promote fishing activities

• To ensure a healthy environment

• To increase tourism

Who conducts water sampling across Victoria?

• Private companies

• EPA's authorised officers and scientists

• University students

• Local volunteers