New York State Design Standards for Intermediate Sized Wastewater Treatment Systems
Statewide (2014) and Lake George Design Standards (2015)
The 2014 New York State Department of Environmental Conservation Design Standards for Intermediate-sized Wastewater Treatment Systems (Design Standards) have been prepared to provide wastewater treatment system design professionals, treatment system owners and operators, and regulators with guidance on the design, operation and maintenance of intermediate-sized wastewater treatment facilities. These intermediate-sized systems serve medium sized facilities discharging to surface and ground waters, cluster housing and other multi-home developments, and POTWs that discharge to groundwater. Excluded are residential systems (individual home septic systems) and large Publicly Owned Treatment Works (POTWs) that discharge to surface waters.
The principal goal of the Design Standards is to provide design criteria for building wastewater treatment systems that protect the water quality of groundwater and surface water. The Design Standards are also intended to aid designers in the preparation of complete project submissions (map, plan and report) and improve the efficiency of project review by regulatory agencies. The updated Design Standards consider energy efficiency and the life cycle costs of the facilities.
This manual is a reference for both the Private/Commercial/Institutional (SPDES) General Permit, as well as individual permits for sanitary waste.
This edition of the The New York State Design Standards for Intermediate Sized Wastewater Treatment Systems (PDF 4.2 MB) (Statewide Design Standards) is intended to incorporate newer technologyfor the onsite or near site treatment of wastewater, as well as provide more design and installation guidance for wastewater treatment facilities. Many valuable comments were received during the public notice period and are incorporated into the updated sections, as appropriate. These developments have arisen from special needs, including the replacement of failing systems on limited sized sites, lighter weight construction materials and lower-cost sewage collection and treatment for remote or isolated locations; and special considerations for environmentally sensitive areas.
Lake George Design Standards for Wastewater Treatment Systems
The New York State Department of Environmental Conservation (NYSDEC) has updated the Design Standards for Wastewater Treatment Systems in the Lake George Basin (PDF 4.1 MB) (Lake George Design Standards). These Design Standards are only applicable in the Lake George Basin for treated sanitary sewage, without admixture of industrial wastes, discharging to groundwater.
This 2015 Design Standard is applicable for municipal, private, commercial and institutional SPDES wastewater facilities. The 1989 Design Standard will remain in effect as the design guidance for the 2005 Private Commercial and Institutional General Permit, i.e. SPDES General Permit 0-05-001. When that general permit is re-issued, the 2015 Design Standard will be the applicable design guidance for that permit.
For more information on the Design Standards, contact:
Bureau of Water Permits,
Division of Water
Phone: (518) 402-8243