Septic System Regulations

by State

Comprehensive knowledgebases providing free, searchable access to septic regulations, permit applications, and technical guidance across the United States

Flag of Idaho

Idaho

Esto Perpetua — Let it be perpetual

LIVE

Complete resource for Idaho septic regulations - 128 documents from all 7 health districts covering every county

All 44 counties (100%)
7 health districts
128 PDFs + 85 diagrams

Health Districts Covered

Panhandle Health District North Central District Southwest District Health Central District Health South Central Public Health Southeastern Idaho Public Health Eastern Idaho Public Health
Explore Idaho Knowledgebase
Flag of Texas

Texas

Friendship

COMING SOON

254 counties · TCEQ regulated · Licensed installers required

On-Site Sewage Facilities (OSSF) program under Texas Commission on Environmental Quality. Authorized agents in each county issue permits.
Flag of Arizona

Arizona

Ditat Deus — God Enriches

COMING SOON

15 counties · ADEQ regulated · County permits

Arizona Department of Environmental Quality sets statewide rules. Counties issue permits for systems under 3,000 GPD.
Flag of New Mexico

New Mexico

Crescit Eundo — It Grows as It Goes

COMING SOON

33 counties · NMED regulated · Liquid waste permits

New Mexico Environment Department Liquid Waste Program. County-level permitting with state oversight for all septic systems.
Flag of Utah

Utah

Industry

COMING SOON

29 counties · Utah DEQ · 13 local health departments

Utah DEQ sets statewide rules (R317-4). Local health departments issue permits and conduct inspections.
Flag of Nevada

Nevada

All for Our Country

COMING SOON

17 counties · NDEP + health districts

Nevada Division of Environmental Protection regulates onsite systems. Health districts and authorities issue construction permits.
Flag of Montana

Montana

Oro y Plata — Gold and Silver

COMING SOON

56 counties · MT DEQ + local health departments

MT DEQ sets statewide rules; county sanitarians issue permits. Certified installers required for most systems.
Flag of Oregon

Oregon

She Flies With Her Own Wings

COMING SOON

36 counties · OR DEQ + county agents

Onsite Wastewater program with DEQ-authorized county agents. Licensed installers and pumpers. Site evaluation required.
Flag of Washington

Washington

Al-Ki — By and By

COMING SOON

39 counties · WA DOH · 35 local health jurisdictions

WA DOH sets statewide rules (WAC 246-272A); local health jurisdictions issue permits. Licensed designers, installers, O&M providers.
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More States Coming

Building knowledgebases for all 50 states

What is septic.report?

A growing collection of free, searchable knowledgebases providing comprehensive access to septic system regulations, permit applications, training materials, and technical guidance. Each state knowledgebase offers 100% county coverage with documents from all regulatory districts.

Maintained by Ryan Malloy

Public archive for educational and reference purposes