Agenda - 10-08-1991 - Laserfiche WebLink

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an aeration lagoon with mechanical aerators or a package waste treatment plant. An aeration lagoon is generally a small pond -with an impermeable liner and some mechanical means of mixing oxygen into the liquid waste. The introduction of oxyggen aids in aerobic decomposition of the waste and reduces odor. The aeration lagoon can also serve as the waste storage area required for spray irrigation systems. A, package treatment plant'(which will be described more fully in Class VI systems below), when used as the primary treatment unit for low pressure and spray irrigation systems, eliminates the need for a sand filter in spray irrigation systems. Package treatment systems also generally include a disinfection system, eliminating the requirement for a separate disinfection system in a spray irrigation system. The primary advantage to cluster systems is that they allow a large area to be developed with multiple building sites when there is insufficient area on each site for on -site waste disposal. This advantage primarily benefits developers. The disadvantages to these types of system affect the users. Cluster systems are generally much more complicated than individual systems. They may require automated valves automated timers and pumps, moisture sensing devices and any number of other complex and automated processes. Handling relatively large volumes of waste flow, causes waste treatment systems to become very complex in order to treat and dispose of wastes in an environmentally sound manner. Additional complications arise in regard to dedicated and commonly owned sewer line easements and nitrification fields. Private cluster systems are owned by homeowners associations who often have difficulty setting sewer use rates sufficient to establish adequate operation, maintenance and repair of the systems. Many of these systems are so complicated that they are operated by a licensed professional waste water treatment operator. Although many operators are both ,professional and competent, they have only as much authority and ability to run a treatment system as they are allowed by the home owner's association which owns the system and provides the money to operate the system. Class v S stems - Public Cluster Systems - The primary differences between Class IV and Class V systems are ownership, treatment capacity and the regulatory authority that has permitting authority for the systems. Class Iv systems are generally owned by home owner associations, s while vregulatedaby tthheeeNorth Ca by rolina Utilities Commission. Public utilities are generally owned and operated as 1) a governmental function similar to the Hillsborough or the 0