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Pumps and equipment have a 5 year warranty and have been rated for a 20 year life expectancy. Mr. <br /> Dunne cited an example of a system operating since 1994 and only 28 pumps have been replaced out <br /> of the 1700 STEP connections. Mr. Klenert questioned whether an existing on site septic system with <br /> a 1500 gallon tank could be retrofitted. Mr. Dunne responded that the system could be retrofitted <br /> provided the tank is sound and watertight. Mr. Dunne suggested that his company be involved early in <br /> the process to work closely with the engineer to design the system and install the system. The Chair <br /> stated that 80%of Mashpee septic systems are Title V compliant. The Chair questioned septage <br /> disposal and Mr. Dunne responded that he generally works with local septage companies. <br /> Mr. Dunne emphasized the low impact that results from installation of the effluent system and less <br /> time compared to gravity systems. One control panel is needed for each STEP system and multiple <br /> homes can be connected to one STEP system, with arrangements being made to share the electrical <br /> costs. Additionally, the system is modular in concept and can be built out as needed and in phases. <br /> The Chair expressed interest in including Mr. Dunne in discussions at the table, at no additional cost. <br /> Mr. O'Hara questioned how the AdvanTex system manages nitrogen and Mr. Dunne responded that <br /> nitrified effluent is re-circulated at the head of the tank and treated a second time, but does not remove <br /> nitrogen to a required low level. <br /> Grinder Pump Low Pressure Sewer Systems-E/One Sewer Systems <br /> Henry Albro of F.R. Mahoney & Associates, Inc. has had many years of experience in wastewater <br /> planning. F.R. Mahoney& Associates, located in Rockland, offers service, sales and design. Mr. <br /> Albro stated that E/One provides free design assistance, including reports and Autocad designs, to <br /> communities and consultants. <br /> A pressure sewer system lays pipes 4-5 feet deep below the surface and requires a grinder pump <br /> located at each home. Although some homes may share the pump, it is not typical because residents <br /> generally do not wish to share electric bills. Each pump does all of the work at each location. The <br /> system allows installation at virtually any location. Mr. Albro stated that gravity sewers tend to be the <br /> biggest competitor. The grinder pump system allows installation despite the terrain and transports the <br /> effluent directly to the wastewater treatment facility. Grinder pump systems are known for their high <br /> head capability of up to 185 feet. The high head capability allows elimination of lift stations, which <br /> reduces maintenance needs, and pumping can occur further which results in a very flexible system. <br /> Installation is not limited by the location of the house or the elevation or slope and is a cost effective <br /> option either as a hybrid or stand alone system. The system is easy to install and a 30 inch diameter <br /> pump station is located at each home along with a small diameter pipeline. Regarding the pipeline, <br /> the system begins with 1 '/4 inch pipe with the sewage being ground in the pump to '/a inch particle size <br /> and then discharged through the 1 '/4 inch pipeline. Grinder sewers typically allow for 50 gallons per <br /> day per person, per household. No septic or filters are needed on the property. Alarm panels are <br /> located on the home and all components of the system are located in the core of the pump. W. Albro <br /> described the ease with which the system can be repaired, with very little down time, and stated that <br /> the system is very reliable. Every pump includes a check valve along with a check valve at the lot line. <br /> The system requires electricity and service but is made as reliable, if not more reliable, than a typical <br /> household appliance. The treatment plant is a closed pressurized system and all waste is transported to <br /> the plant where it is nitrified and de-nitrified. Every community in Massachusetts has an installation <br /> and local systems include Windchime and Cotuit Bay. <br /> Regarding service, Mr. Albro stated that F.R. Mahoney has been installing systems for 30 years and <br /> have 4-5 technicians available at all times, 24/7, with a population of 30,000-40,000 pumps in New <br /> England. Some communities perform their own service and other communities, such as Marion, have <br /> contracted with F.R. Mahoney to provide service for the pumps. W. Albro referenced cost <br /> 5 <br />