What river valley in San Diego is affected by Mexican sewage discharges?

What direction is the ocean currents along the southern San Diego coastline? How does this impact transport of sewage-contaminated waters from Mexico?

Decomposition of organic matter in water causes a decrease in what? How does this impact fish and other organisms?

Release of sewage (organic matter) causes BOD to decrease? T or F

What are fecal coliform bacteria used for in water monitoring?

What is Cryptosporidium? Why is it a problem?

What are nutrients? What are some sources of nutrients to the environment?

High levels of nutrients in water cause what to occur?

How is algae growth affected by high levels of nutrients?

What happens to oxygen levels in areas with algal blooms and eutrophication?

What happens to fish?

What is primary treatment of sewage?

What is secondary treatment of sewage?

What is tertiary treatment of sewage?

San Diego's Point Loma plant has what level of sewage treatment?

The International Sewage Treatment Plant was completed in 1997. What was its main purpose? What level of treatment does it provide? What are the problems encountered now?