Environmental Engineering Introduction

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What are the primary environmental systems?

Air, Water, Soil, Hazardous Waste/Solid

Drinking water system

Surface water, WTP, Ground water and Clearwell storage, pump station, customers, Wastewater treatment.

Wastewater Treatment

Public sewer (main), gravity flow to pump, Pump station, Sewer force (main) (pumped uphill), Wastewater treatment plant

Why do we have separate storm and waste sewers?

Some reasons that separate sewers are preferred are: flooding (storm sewers only deal with rainfall and waste sewers only deal with water from homes/buildings), public health (drinking water has no chance of being contaminated), and the environment (the wastewater wouldn’t be able to flow into streams or creeks)

Key National Acts regarding air

Clean Air Act 1990

Key National Acts regarding water

Clean Water Act 1972, National Primary Drinking Water Regulations

Key National Acts regarding soil

Soil and Water Resources Conservation Act (RCA 1977)

Key National Acts regarding solid/hazardous waste

National Emission Standards for Hazardous Air Pollutants (NESHAP), Comprehensive Environmental Response, Compensating, and Liability Act (CERCLA)