Protecting Public Health and the Environment.

Nonhazardous Solid Waste Impoundment Guidance


The next meeting is scheduled for July 18, 2019.


DEQ invites the public to participate in the development of guidance pertaining to the regulation of nonhazardous solid waste impoundments under the Solid Waste Management Rules (IDAPA 58.01.06). This type of waste is sometimes referred to as “pumpable” waste. The guidance will apply to facilities commercially receiving solid waste from off-site where: (1) the facility is not within the site certified area of an approved landfill, (2) the waste does not pass the paint filter test prior to placement in the impoundment unit, and (3) operations are not otherwise regulated under a discharge or land application permit.

Facilities engaged in food processing or other manufacturing or industrial activities with onsite treatment of liquid waste are not affected by this guidance initiative. Those facilities generally are not regulated under IDAPA 58.01.06 because oversight is through discharge permits or land application permits.

Stakeholders may include: Owners and operators of existing or proposed impoundment facilities commercially accepting liquid or “pumpable” waste, pumpable waste haulers and generators, local governments addressing issues related to these facilities, and the affected public. Owners and operators of approved landfills with impoundment facilities inside and outside their certified areas commercially accepting liquid waste may want to participate since the same operational measures will be expected whether facility oversight is under a landfill operating plan or a separate authorization.

For more information on this guidance initiative, including its background, scope, and goals, please refer to the Discussion Paper: Nonhazardous Solid Waste Impoundments (NSWIs) in Idaho. Prior to the first stakeholder meeting an outline of the proposed guidance will be posted on this webpage. Please check back often as the contents of this page will change.

Meeting Schedule

July 18, 2019, 1 to 4 p.m.

DEQ State Office
Conference Rooms C and D
1410 N. Hilton, Boise


Draft No. 2 (July 2019)

To request telephone or web conferencing, email

August 19, 2019, 8:30 a.m. to 12 p.m. MDT
To request telephone or web conferencing, email

Previous Meetings

June 19, 2019 - Agenda | Sign-in Sheets
May 22, 2019
- Agenda | Sign-in Sheets

Draft Guidance Documents

Draft No. 1 - (June 2019)

Public Comment Opportunities

To receive future electronic notices pertaining to this guidance initiative, please provide your email address to

Submit all written comments by mail, fax or, email to:

Matthew Beeter
Idaho Department of Environmental Quality
1410 N. Hilton, Boise, ID 83706
Fax: (208) 373-0154

Page Subscription

Staff Contacts

Solid Waste Program Manager
Matthew Beeter
DEQ State Office
Waste Management and Remediation Division
1410 N. Hilton
Boise, ID 83706
(208) 373-0121

Reference Documents

Wastewater Rules

Rules Governing the Cleaning of Septic Tanks

EPA Surface Impoundments – CCR Rule

The Key to Managing Your Sump Waste: Determining if it's Hazardous

Texas NISWI Technical Guideline

Hazardous Waste Determination CFR