Subdivisions may be developed with either individual water and/or sewage systems or with community water and/or sewage systems. However, Part 74 requires that community water systems must be provided if a subdivision consists of 50 lots or more or if individual wells cannot provide a yield of 5 gallons per minute or more. The water must be of potable quality and wells cannot adversely affect neighboring wells. Community sewage systems are required if the subdivision consists of 50 lots or more or if the soil percolation rate is lower than 60 minutes per inch. Only subsurface leaching systems utilizing a septic tank may be used for individual systems. Septic tank and sand filter or aeration systems cannot be utilized in subdivisions. There are other requirements contained in Part 74 that a potential developer should review.

Any person considering selling lots or dividing property should contact the local municipality and the Chautauqua County Health Department (716-753-4481) to discuss these requirements.