St. Louis County office buildings will be closed December 25. Happy holidays to all!
If your property was affected by the wildfires in May, find resources and information on relevant county services here: 2025 Spring Wildfires
Form 3000: Residential Construction Application (Updated: 10/6/25)
Form 3001: Commercial Construction Application (Updated: 9/22/25)
In Ground Design Forms Package (Updated: 4/25/2025)
Mound Design Forms Package (Updated: 4/25/2025)
SSTS TIME DOSED Mound Design forms package (Updated: 4/25/2025)
Form 3002: SSTS Design Summary (Updated: 9/22/25)
Form 3003: SSTS Site Sketch (Updated: 4/15/24)
Form 3004: Soil Verification Observation Log (Updated: 3/11/21)
Form 3005: Mound Calculation Spreadsheet (Excel)(Updated: 5/1/23)
Form 3006: At-Grade Calculation Spreadsheet (Excel) or State (Updated: 3/11/21)
Form 3007: In-Ground Calculation Spreadsheet (Excel) (Updated: 3/2/22)
Form 3010: SSTS Operating Permit Worksheet (Updated: 4/15/24)
Orenco Pump Select (Updated: 9/9/21) or County Modified State Form(Updated: 4/2/24)
Management Plan or Pre-Approved
SSTS Loading Rate Chart
If necessary
Form 3011: SSTS Dwelling Classification Worksheet (Updated: 12/28/21)
SSTS Holding Tank Design forms package (Updated: 4/25/2025)
Maintainer (pumper) Contract (From Maintainer)
SSTS Privy Design forms package (Updated: 4/25/2025)
Form 3020: Privy Worksheet (Updated: 6/21/23)
Form 3021: Privy Information (Updated: 6/21/23)
Form 3004: Soil Verification Observation Log (Excel) (Updated: 3/11/21)
Registered Product Worksheets (manufacturer supplied)
Form 3005: Mound Calculation Spreadsheet (Excel) (Updated: 5/1/23)
Orenco Pump Select or County Modified State Form (Updated: 9/9/21)
Form 3008: As-Built (Updated: 5/19/25)
MDH Certification of Buried Sewer Construction and Testing (Updated: 7/21/25)
MPCA SSTS Abandonment Reporting Form (Updated: 3/11/21)
Form 3034: Final Inspection Private Licensed Contractor Guidelines (Updated: 1/3/24)
Form 3035: Final Inspection Private Licensed Contractor Acknowledgement (Updated: 1/3/24)
Form 3036: Approved Private Inspection Licensed Contractor List (Updated: 1/3/24)
Form 3030: Disclosure & Transfer Agreement (Updated: 1/3/24)
Form 3031: Compliance Inspection (Updated: 9/22/25)
Existing SSTS Inspection Form (Updated 1/14/21)
Septic System Point of Sale Brochure (Updated: 9/3/25)
Fact Sheet 3095-Inspection Results
Form 3042: Operating Permit Owner Transfer (Updated: 1/3/24)
Form 3040: SSTS Operating Permit Renewal (Updated: 1/3/24)
Renewal Operating Permit - Application Guide
Form 3041: Operating Permit 5-1 (Updated: 1/3/24)
Product O&M Worksheets (manufacturer supplied)
O&M Manual Worksheets
Form 3090: Variance (updated 4-2024)
Board of Adjustment Dates and Deadlines
Board of Adjustment Criteria for Approval
Design documents
State forms can be found: Forms & Worksheets
Design Forms (Updated 6/25/2021)
Soil Verification Observation Log (Updated: 4/27/20)
MPCA SSTS Abandonment Reporting Form
Existing SSTS Inspection Form(Updated:7/21/25)
MDH Certification of Buried Sewer Construction and Testing
Below Grade Systems (Trenches and Beds)
Above Grade Systems (Mounds and At-Grades)
Holding Tank System
Homeowner Information
Homeowner Installation
See All Septic FAQs
Onsite Wastewater Virginia Office Phone: 218-471-7103 Email
Duluth Office Phone: 218-471-7103
All contacts