Municipal Wastewater Collection, Conveyance & Treatment Capacity Assurance Review
Onondaga County requires Capacity Assurance approval by the Department of Water Environment Protection (WEP) for proposed sewer extensions prior to the commencement of the County Health Department's review and approval of all sewer plans.
Capacity Assurance approval is also required for all new lateral connections to existing sewer mains AND re-use of existing laterals prior to issuance of plumbing permits by the County's Plumbing Control Unit.

After completing and submitting the Capacity Assurance Form, WEP will review and provide feedback or approval within 45 days of submission. Depending on the location of the proposed development, off-set plans addressing storm water inflow and infiltration may be required as a condition of approval. Click here for a map of these off-set areas.

Capacity Assurance Form
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