Certified Monitoring Specialists

• Table of Contents [PDF]
• Understanding Your Onsite Sewage System [video]
• CMS Application [PDF]
• Performance Expectations [PDF]
• General Onsite Procedures [PDF]
• Glossary of Sewage Related Terms [PDF]
• Major Microbial Diseases in Domestic Wastewater [PDF]
• Thurston County Septic Tank Pumper's Manual [PDF]
• Thurston County Onsite Wastewater System Construction Manual [PDF]
• Technical Paper:  Diagnostic Techniques Utilized in the Analysis of Failed Systems for Residential Waste [PDF]
• Inspecting Your Septic Tank Brochure [PDF]
• Understanding and Caring for Your Pressure Distribution System [PDF]
• Article IV, Thurston County Sanitary Code [PDF]
• Memo and Policy for Implementation of DOH/TRC Sand Filter Guidelines [PDF]
• Contract Requirements for Third Party Maintenance Policy [PDF]
• Policy Requiring Service Contracts with Certified Monitoring Specialists [PDF]
• Washington State Onsite Sewage Regulations - DOH Website
• Approved Onsite Products - DOH Website
• Property Owners/Property Manager Publications - DOH Website
• Design Standards for Large Onsite Sewage Systems - DOH Website
• Recommended Standards & Guidance Website for Documents Listed Below - DOH Website
• Aerobic Treatment Units (Proprietary Treatment Products)
• Alternating Drainfields
• Dosing Gravity Drainfield Systems
• Glendon® Biofilters
• Gravelless Drainfields
• Holding tank Sewage Systems
• Intermittent Sand Filter Systems
• Mound Systems
• Pressure Distribution
• Proprietary Packed Bed Filter Systems
• Proprietary Treatment Products - Replaces Aerobic Treatment Units, Proprietary Packed Bed Filters and Upflow Media Filters
• Recirculating Gravel Filters
• Sand Lined Trench Systems
• Stratified Sand Filters
• Subsurface Drip Systems
• Water Conserving Onsite Wastewater Treatment Systems

Designers

• Table of Contents [PDF]
• Designer List Application [PDF]
• Thurston County Onsite Wastewater System Construction Manual [PDF] — Minimum standards and recommendations for the construction of onsite wastewater treatment and disposal systems in Thurston County

Installers

Installer Packet

• Table of Contents [PDF]
• Certified Installer Application [PDF]
• Procedures for Certification as Sewage System Installer in Thurston County [PDF]
• Thurston County Environmental Health Fee Schedule
• Article IV Rules and Regulations Governing Treatment and Dispersal of Sewage [PDF]
• Thurston County Onsite Wastewater System Construction Manual [PDF] — Minimum standards and recommendations for the construction of onsite wastewater treatment and disposal systems in Thurston County
• Department of Ecology's "Criteria for Sewage System Works Design" - DOE Website (567 page document)
• Chapter 246-272A WAC, On-Site Sewage Systems [PDF] - DOH Document
• Pressure Distribution System Recommended Standards and Guidance - July 2009 [PDF] - DOH Document
• Standards and Guidance for Sand Lined Trench System - Thurston County Policy Number ONST.09.POL.822 [PDF]
• Recommended Standards and Guidance for Sand Lined Trench System - July 2009 [PDF] - DOH Document
• Recommended Standards and Guidance for Intermittent Sand Filter System - July 2007 [PDF] - DOH Document
• Recommended Standards and Guidance for Mound System - July 2009 [PDF] - DOH Document
• Miscellaneous Info and Requirements Memo dated 2-11-03 [PDF]
• Miscellaneous Items Memo dated 2-4-04  [PDF]
• County Changes and Requirement Update Memo dated  12-22-06 [PDF]
• Solids Pump Tanks Memo dated  6-29-07 [PDF]
• Environmental Health Updates Memo dated 1-4-10 [PDF]

Pumpers

Pumper Packet

• Table of Contents [PDF]
• Cover Letter [PDF]
• Certified Sewage System Pumper Application Form [PDF]
• Pumper and Pumper Firm Performance Expectations [PDF]
• Summary of Septic System Operation and Maintenance Program for the Henderson Watershed Protection Area [PDF]
• Thurston County Septic Tank Pumpers' Manual [PDF]
• Article IV Section 23.3 Pumping Firm [PDF] — taken from the Thurston County Sanitary Code
• List of Approved On-site Sewage Disposal System Additives [PDF] — WA Dept of Health
• Thurston County Septic Tank Pumper / Facility Inspection Report [PDF]
• Septic Tank Pump and Service Report [PDF]
• Sample Information packet — information provided to septic system homeowners prior to having their septic systems inspected
• Septic Inspection and Pumping Guide [PDF]
• Inspecting Your Septic Tank, It's not so bad... really! [PDF]
• Understanding and Caring for Your Sand Filter System [PDF]
• Understanding and Caring for Your Septic Tank System [PDF]
• Understanding and Caring for Your Mound System [PDF]
• Understanding and Caring for Your Pressure Distribution System [PDF]
• Septic Tank Additives— Small Flows Quarterly, Winter 2002
• Your On-Site Sewage System [PDF] (Used as the holder for the handouts)