Large On-site Sewage System (LOSS) Information and Guidance

The following information is offered to assist you in planning your LOSS project and complying with regulatory requirements. The documents have been grouped into the following categories:


Rules & Regulations


Best Management Practices (BMPs), Tech Tips, Fact Sheets & Frequently Asked Questions (FAQs)

Best Management Practices

Tech Tips

Fact Sheets


Operating Permit Renewal Forms

An annual operating permit renewal application is mailed in advance to each system by Department of Health.


Operating Permit for Existing LOSS: First Application


Designing and Building a New LOSS or Modifying an Existing LOSS


Environmental Review Forms & Guidance


Inspecting and Evaluating Existing LOSS


LOSS Management


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