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the treatment site, where they are installed and connected to the influent and effluent lines. Since wastewater collection and transfer systems are very expensive, developers find it economically feasible to use these package plants, both in rural areas and in smaller, isolated subdivisions within urban areas.
Do they work?
In a technical memorandum prepared for PI Drew Dreshed, environmental engineer with Cl Hill, reported:
“It is CH2M Hill’s experience that most of the ufacturers do not have the technical expertise to ptov&e a purchaser with a completely designed packages pliant that can provide long-term secondary treatment reliability without input from an outside engineer . 4. Even
liv reputable package plant manufacturers may have some components that in some ways are deficient- in either
'See TREATMENT, p 16)
T
83.5%