TM 5-814-3/AFM 88-11, Volume III
CHAPTER 4
BASIC DESIGN CONSIDERATIONS
4-1. General.
The required treatment is determined by the influent characteristics, the effluent requirements, and the
treatment processes that produce an acceptable effluent. Influent characteristics are determined by laboratory
testing of samples from the waste stream or from a similar waste stream, or are predicted on the basis of
standard waste streams. Effluent quality requirements are set by Federal, interstate, State, and local regulatory
agencies. Treatment processes are selected according to influent-effluent constraints and technical and
economic considerations.
4-2. Design population.
Treatment capacity is based on the design population, which is the projected population obtained by analysis.
The design population is determined by adding the total resident and 1/3 the non-resident populations and
multiplying by the appropriate capacity factor (para 4-6) taken from table 4-1 which allows for variations in
the using population. The resident population is determined by adding the following:
a. Military personnel. The sum of existing and proposed (programmed) family housing units; permanent,
temporary and proposed BOQ and BEQ spaces.
b. Dependents and others. The sum of units times 1.6 dependents; the number of National Guard, ROTC
and Reserve personnel peak populations normally expected (not in the field); population of any boarding
schools; anticipated overnight visitors such as TDY personnel; guesthouse spaces; any satellite functions such
as service to a local community or other Federal bodies; and others not shown above. The non-resident
population is found by summarizing the following:
-- Off-post military. This is the difference between the resident military as indicated in 4-2a above and the
strength shown in the Army Stationing and Installation Plan (ASIP).
-- Civilian personnel under Civil Service.
-- NAF personnel.
-- Contractor personnel.
-- Daytime schools.
-- Daytime transients.
The effects of birth rates, death rates, and immigration are not applicable to military installations. The assigned
military population both present and foreseeable, is obtained from the ASIP.
4-1
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