Agenda - 10-08-1991 - Laserfiche WebLink

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design review and permitting to DEM. The Utility Commission generally concerns itself with setting sewer service cost rates to the customers, though the Commission does concern itself in the financial solvency of the utility operator. In general, DEM receives its authority for permitting all spray irrigation and discharging systems of any size from the Us EPA, which is the ultimate authority for these types of systems. The permitting and enforcement authority delegated by the EPA to DEM cannot be further delegated by DEM, though DEM can eater a Memorandum of Agreement with local health departments to oversee some aspects of design and monitoring and may allow local boards of health to set restrictions more stringent than its own on systems which it regulates. Systems that are regulated by DEB are subject to its design standards but are actually permitted by local health departments. Class I Systems - Individual conventional systems are regulated by local health departments under general DEH regulations as well as local regulations that are more stringent than those of DEB. Health department staff are responsible for 1) designating the potential sites for location of the systems, 2) determining if soils are suitable for a conventional system, 3) determining the application or waste loading rate and the resulting size of the nitrification field, 4) sizing the capacity of the septic tank, 5) issuing the appropriate permits, and B) supervising construction of the system. There are no existing regulations requiring that individual conventional systems be maintained or monitored. In the event of a complaint of a failing septic system nitrification fields local health departments are required to design or designate a repair or a new method for treating the sewage. Class 11 System - Individual pump systems fall under the jurisdiction of local health departments which are required to provide the same or similar siting, sizing and supervising services as for conventional systems. On the pump systems, the local health department is also responsible for determining pumping requirements and designing the pump control system and pump chamber. This design work is much more difficult and detailed than that required for conventional systems. Low pressure pipe systems require a further level of special design, an elevation survey and an individual layout ror each proposed site. At the present time, there are no regulatory operating, monitoring, maintenance or inspection requirements for these systems, though DEB regulations requiring that these systems be operated by an approved management entity may take effect in July, 1992. Low pressure pipe systems that have a capacity of over 3000 gallons are moved up into the Class IV system category and must be designed by professional engineer with design approval by DEB. 12