CAP Water Resources & Conservation 3

Question 1

Which greenhouse gas is predominantly emitted from poorly managed wastewater treatment facilities?

Accepted Answer

Nitrous oxide (N2O) and methane (CH4)

Answer

Wastewater treatment generates methane from anaerobic decomposition of organic matter and nitrous oxide from nitrogen cycling processes.

Question 2

A carbon auditor reviewing a municipality's water system finds that 35% of treated water is lost before reaching consumers. What is this loss called?

Accepted Answer

Non-revenue water (NRW)

Answer

Non-revenue water (NRW) refers to water that is produced and treated but lost through leaks, theft, or metering inaccuracies before generating revenue.

Question 3

Which sector accounts for the largest share of global freshwater withdrawals?

Accepted Answer

Agriculture

Answer

Agriculture accounts for approximately 70% of global freshwater withdrawals, primarily for crop irrigation.

Question 4

How does watershed protection contribute to reducing carbon emissions from water utilities?

Accepted Answer

It reduces source water contamination, lowering treatment energy requirements

Answer

Protecting source watersheds reduces pollutant loads, meaning less energy-intensive treatment is needed to meet drinking water quality standards.

Question 5

In GHG accounting, which Scope category typically captures emissions from electricity used in water pumping operations?

Accepted Answer

Scope 2

Answer

Electricity purchased from the grid for pumping operations is classified as Scope 2 (indirect energy emissions) under the GHG Protocol.

(CAP) Certified Carbon Auditing Professional Practice Test

(CAP) Certified Carbon Auditing Professional Practice Test

CAP Water Resources & Conservation 3