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Documents & Resources [new page] <br /> Project Documents (link to Town of Mashpee page) <br /> Other Resources[links] <br /> Cape Cod Commission <br /> Cape Cod Water Protection Collaborative <br /> Mashpee Environmental Coalition <br /> Massachusetts Department of Environmental Protection(MassDEP) <br /> Typical Acronyms <br /> I/A septic systems—individual on-site innovative and alternative septic systems <br /> MEP—Massachusetts Estuaries Project [link] <br /> PPA—Project Planning Area [link to map] <br /> TMDL—Total Maximum Daily Load <br /> WNMP —Watershed Nitrogen Management Plan <br /> WWTF—Wastewater treatment facility <br /> Common terms and definitions <br /> Attenuation—reduction in the amount of a substance, in this case nitrogen. <br /> Cluster system—a wastewater treatment system that serves a smaller number of homes and <br /> businesses and bridges the gap between individual septic systems and large municipal treatment <br /> plants. <br /> Effluent—outflow or discharge from a system,in this case from a wastewater treatment plant or <br /> septic system. <br /> Estuary—coastal water bodies where fresh ground and surface waters combine with marine <br /> waters to form the productive and scenic harbors and bays characteristic of the Cape coastline. <br /> Popponesset Bay and Waquoit Bay are examples of these. <br /> Gravity sewer—moves sewage from one point to another using the force of gravity in pipes that <br /> are typically 8 inches in diameter or greater. <br /> Groundwater—water located in void spaces of soil beneath the ground surface, often referred to <br /> as an"aquifer." <br /> Groundwater recharge—returning used water, in this case treated wastewater or stormwater,to <br /> the groundwater by injecting it into the soil or other means. The purpose of groundwater <br /> recharge is to take advantage of the natural ability of soil and microscopic organisms to absorb <br /> nitrogen before it reaches groundwater, and has the added benefit of keeping water local by <br /> returning it to the rivers, streams and estuaries that it came from. Appropriate recharge areas will <br /> be identified by the Mashpee WNMP project based on soil characteristics and other criteria. <br /> Individual innovative and alternative septic systems—an alternative to a conventional septic <br /> system(Title 5)that uses innovative technologies to treat wastewater. Systems must be <br /> approved by the state before use. They are sometimes called"I/A systems." <br /> Low pressure sewer—moves sewage or wastewater by pumping from your home through a <br /> small pipe (often 1.5 to 3 inches in diameter). <br /> Nitrogen—an essential nutrient that serves as food for plants. Nitrogen is typically the nutrient <br /> that promotes excessive algal growth in marine waters. <br /> 13 <br />