Frequently Asked Questions
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What do Operation and Maintenance consist of?
Septic systems have become more complex, and so have their operation and maintenance needs. A traditional onsite sewage system or “gravity system” is a basic system and requires a more limited amount of maintenance. The O&M of a standard gravity system may be limited to monitoring the tank scum/sludge and liquid levels and inspection of the drain field or leach field. Alternative systems differ in design in that they achieve a greater degree of effluent treatment than conventional systems. Alternative systems generally fall into four different types: pressurized drain fields, mounds, sand filters, and patented devices. The O&M required depends on the type and complexity of the system used but not be limited to:​
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Inspection of the septic tank to determine scum, sludge, and liquid levels in each of the compartments and pumping if necessary of the septic tank.
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Inspection of the pump tank (if present) which may include checking the effluent pump, control floats, cleaning pump vaults and pumping if necessary.
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Inspection of an Aerobic Treatment Unit(ATU) which may include cleaning the filter or media within the aerobic treatment unit; cleaning and inspecting the aeration device, and determine scum, sludge, and liquid levels and pumping if necessary of the ATU.
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Inspection of the lateral drain field lines for levels of effluent (ponding); flushing lateral pressure distribution lines (if present), and measuring residual head pressure.
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Inspection of the sand filter pretreatment unit for levels of ponding; flushing lateral pressure lines within the sand filter, and measuring residual head pressure.
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Inspection mound units such as Glendon Units, or a mound distribution system, noting mound integrity, cover, effluent seepage, and presence of ponding.
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Inspection of drip irrigation systems (if present), flushing laterals, cleaning filtration components, measuring pressure, flow, and drip field absorption.
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Inspection and replacement of disinfection devices such as a UV light or Chlorinators.
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Inspecting unit components and replacing parts as necessary.