Environmental Engineering FOURTH EDITION

28 ENVIRONMENTAL ENGINEERING

Alternative #1

'0°%1

• Average annual increase:
  $1 .BIHousehold
  50%

Average annual increase:

$P.O5/!-Iousehold

10% 20%

Projected percent increase in residential sewer charges

Figure 2-3. Projected increases in sewer use charges per household in a sample
community if a new wastewater treatment facility is constructed.

process, in this instance between alternative 1 (little required reduction in pollution)

and alternative^2 (large requirements in pollution reduction), must be based on such

other criteria as environmental impact and public health concerns, not on changes in

user charges.

Sociological Impacts

Large changes in the population of a community, such as influxes of temporary con-

struction workers or establishment of a military base with immigration of the associated

personnel and their families, may have a number of impacts, both positive and adverse.

New service jobs may well be created, particularly in small communities, but there