Protecting Public Health and the Environment.

Draft Technical Guidance Manual Modification

Accepting Comments from October 8, 2019 to November 8, 2019

BOISE — The Idaho Department of Environmental Quality (DEQ) is seeking public comment on proposed revisions to its guidance on how to design, construct, and operate subsurface sewage disposal systems.

The proposed revision to the Technical Guidance Manual for Individual and Subsurface Sewage Disposal Systems (TGM) addresses manufactured medium sand, initial septic tank approval, and septic tank and dosing chamber installation.

Public Comment Form

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Staff Contacts

On-Site Wastewater Analyst
Rachael Smith
DEQ State Office
Water Quality Division
1410 N. Hilton
Boise, ID 83706
(208) 373-0249

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