Prediction of Septic-System Failures

by Gary B. Saxton, (A.M.ASCE), Project Mgr.; Anderson-Nichols & Co., Inc., Boston, Mass.,
Joseph M. Zeneski, Project Engr.; Anderson-Nichols, Inc., Boston, Mass.,


Serial Information: Journal of the Environmental Engineering Division, 1979, Vol. 105, Issue 3, Pg. 503-509


Document Type: Journal Paper

Abstract:

In response to EPA requirements to conduct a cost-effective analysis for on-site wastewater disposal systems, a computer model was developed that predicts the number and temporal distribution of single-family residential septic system failures. The model was calibrated with 10 yr of data and verified with another 10 yr of data on septic system failures in Acton, Mass. The expected median life expectancy of septic systems in Acton was within the range determined in the study of another New England community. The model predicts the expected number of failures for each of the next 20 yr and can be used as input for presenting worth calculations, estimating sanitarian work loads, and predicting water quality.



Subject Headings: Failure analysis | Computer models | Water quality | Environmental Protection Agency | Financial management | Municipal wastewater | Computer analysis | Domestic wastes | New England | United States

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