Private Onsite Water Treatment Systems (POWTS) Plan Review

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​As of April 12, 2021, the Electronic Safety and Licensing Application (eSLA) is live for POWTS​ Plan Review. Customers must use eSLA to submit plan​ reviews/permits, as well as search the Public Lookup for this program area​.

Visit ​to get started, or go to the Customer Information page for instructions on first-time login.

The Division of Industry Services provides required plan review for new system installations and/or replacements or additions to existing POWTS treatment, holding, or dispersal component. 

Plumbing Product Approval​

Visit Public Lookup​ on eSLA to find approvals for Plumbing Products

Where to Submit Plans

Delegated Plan Review Agents

Plans Which can only be Submitted to Industry Services

  • POWTS owned by the state; facilities owned by the state and served by POWTS;
  • POWTS that will not completely utilize a component manual or approved plumbing products; designs which do not utilize an approved component manual (called "Individual Site Designs"), and experiments.

Plans Which can be Submitted to Industry Services or a Designated Agent

  • POWTS that completely designed according to a component manual or are approved plumbing products. (Designs which do not utilize an approved component manual are called "Individual Site Designs.)
  • Holding tanks that have a product approval and comply with a component manual.

Plan Submissions Which Should go to the Local Governmental Unit

  • POWTS that serve a single one- or two-family dwelling utilizing an approved component manual and gravity distribution to an in-ground distribution cell.

Is Inspection Involved?

Counties have the primary responsibility to inspect POWTS, with the exception of state-owned projects.


Plan Submittal Questions

Please email your questions to

POWTS Standard Plan Pages Table of Contents

Dispersal Area Pages

In-Ground Gravity

In-Ground Pressure