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Page 4 · column 7 of 9 · from the scan, no model involved
practical alternatives sucn as step collection and lagooning or a package sewage treatment plant may be as cost effective over time, considering the possibile failure and replacement of the mound system.”
Mound Or Nothing
According to Eggborn, engineers for the Sperryville project maintained ‘‘it was the mound system or nothing...something to that effect.”
He questioned their position, noting that user fees for the mound system, estimated at S16 per month, would have been only $3 less than the projected monthly charge of $19 to support pumping from individual septic tanks to a lagoon.
In addition, a mound system would provide only "an 80 percent solution” to Sperryvilie’s sewer problem since the mound would have been flooded out 10 to 20 percent of the time while STEP pumping to a protected lagoon could give a
92.0%