Regulation of Septic Systems & Sewage Treatment Systems
Onsite Wastewater Treatment Regulations by Various Agencies

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Septic design & installation regulations for septic tanks, cesspools, drainfields, soakaway beds and other onsite wastewater treatment & disposal systems. While we include citations of regulations from a variety of U.S., Canadian, and U.K. authorities, this document also uses & quotes from the New York State wastewater treatment standard for individual household septic systems (Appendix 75-A) to provide an example of state regulated design and installation of both conventional tank and leach field septic systems and alternative septic system designs, including raised septic systems, septic mound systems, intermittent sand filter septic systems, and evaportion-transpiration septic systems.

We include other model septic design regulations illustrating the regulation of wastewater treatment by other agencies such as the Adirondack Park Agency and Local Health Departments.

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Septic System & Off-Grid Onsite Septic System & Wastewater Treatment Regulations

Title: Appendix 75-A.2 - Regulation by other agencies - Effective Date: 12/01/90

(a) Where sewage treatment systems are to be located on the watersheds or well head area of public water supplies, the rules and regulations enacted by the State Department of Health for the protection of these supplies must be observed. Where systems are to be located on the watershed of any stream or body of water from which the City of New York obtains its water supply, the approval of the New York City Department of Environmental Protection, Division of Water Resources, must also be obtained.

(b) This appendix establishes the minimum standards acceptable in New York State. Other agencies, such as the Adirondack Park Agency or local health departments may establish more stringent standards. Where such standards have been established, or approval by another agency is required, the more stringent standard shall apply.

© A local health department may not adopt standards less stringent than the State standard unless a General Waiver has been issued by the State Commissioner of Health or his designated representative as provided in Part 75 of this Title, or the local health department is otherwise legally authorized to adopt such standards.

(d) When individual sewage systems overlay a drinking water aquifer, local health departments may establish population density limits and minimum lot sizes for residential development with on-site sewage treatment systems.

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