Category: Public Comment
DEQ seeks comment on draft 401 water quality certification for Verbena Ranch Subdivision project
Accepting comments from September 12, 2025, through October 3, 2025.
The Idaho Department of Environmental Quality (DEQ) is seeking public comment opportunity on a 401 water quality certification for Verbena Ranch Subdivision project.
The proposed Verbena Ranch Subdivision in Caldwell, Idaho, includes constructing 1,019 residential lots, 138 common lots, interior roadways, underground utility services, and other supporting infrastructure. The construction activities would reroute 2,150 linear feet of the Deer Flat Caldwell Canal and impact 618.5 linear feet of the Forest Canal across six different locations.
Based upon review of the federal joint permit application, readily available water quality related materials, and certification request in accordance with 40 CFR §§ 121.5 (b) and (c) and 121.7 (c), DEQ, certifies that if the permittee complies with the terms and conditions imposed by the federal permit and the conditions set forth in this water quality certification, then it is reasonable for DEQ to conclude that the activity will comply with water quality requirements, including applicable requirements of the Clean Water Act §§ 301, 302, 303, 306, and 307, Idaho’s “Water Quality Standards” (IDAPA 58.01.02), and other appropriate water quality requirements of state law.
The draft addendum and supporting materials are available for public review at DEQ’s State Office (1410 N. Hilton St. Boise, Idaho 83706), DEQ’s Boise Regional Office (1445 N. Orchard St. Boise, Idaho 83706), and on DEQ’s website. Written comments will be accepted through October 3, 2025, at 5 p.m. Mountain Time. Submit comments electronically using the form below or by mail or email to:
Meghan Cline
1445 N. Orchard St.
Boise, Idaho 83706
Meghan.Cline@deq.idaho.gov
Related Documents
Draft certification
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
DEQ seeks comment on updates to Technical Guidance Manual for Individual and Subsurface Sewage Disposal Systems
Accepting comments from September 11, 2025, through October 13, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks comment on the draft Technical Guidance Manual for Individual and Subsurface Sewage Disposal Systems (TGM).
The manual provides guidance on the design, construction, alteration, repair, operation, and maintenance of standard individual and subsurface sewage systems, their components, and alternatives. This document is updated periodically to adapt to the complex nature of small wastewater disposal systems.
| TGM Section | Item |
| 2.2.4 | Surface Water Separation Distances |
| 4.25 | Seepage Pits |
| 5.12 | Nitrogen Reduction Approvals |
| App C | Uncommon Wastewater Flows |
| 8 | NEW Section: Pumpers Guidance |
The draft materials are available for public review at DEQ’s State Office (1410 N. Hilton Street, Boise, Idaho) and on DEQ’s website. Written comments will be accepted through October 13, 2025, at 5 p.m. Mountain Time. Submit comments using the form below or by mail or email to:
Peter Adams
On-Site Wastewater Coordinator
1410 N. Hilton St.
Boise, ID 83706
peter.adams@deq.idaho.gov
Related Documents
Technical Guidance Manual for Individual and Subsurface Sewage Disposal Systems
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
DEQ seeks comment on a proposed settlement action with CM Company, Inc.
Accepting comments from September 5, 2025, through October 6, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks public comment on a proposed settlement action with CM Company, Inc., located in Boise, Idaho, for alleged violations of the Clean Water Act and the “Idaho Pollutant Discharge Elimination System Rules” (IDAPA 58.01.25).
CM Company, Inc. obtained coverage under Idaho Pollutant Discharge Elimination System (IPDES) 2022 Construction General Permit IDR10C0SJ as an operator at MDSD Staff Housing in McCall, Idaho. DEQ alleges that on June 26, 2024, CM Company, Inc. failed to comply with all applicable conditions of the permit. DEQ prepared an Expedited Settlement Agreement and Consent Order directing CM Company, Inc. to resolve the alleged violations and either pay a civil penalty or request a compliance conference. CM Company, Inc. has resolved the alleged violations, made payment in full for the civil penalty of $6,600, and signed the settlement action materials.
The proposed settlement action is available for public review on DEQ’s website and at the DEQ State Office (1410 North Hilton Street, Boise, Idaho). Written comments will be accepted through October 6, 2025, at 5 p.m. Mountain Time. This settlement action may be amended or adjusted in the future, in which case, DEQ may provide an additional public comment opportunity.
Submit comments electronically using the form below or by mail or email to:
Jayson Foley
Idaho Department of Environmental Quality
1410 N. Hilton St.
Boise, ID 83706
jayson.foley@deq.idaho.gov
Related Documents
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
DEQ seeks comment on draft reuse permit renewal for HJ Grathol
Accepting comments from September 4, 2025, through October 6, 2025.
The Idaho Department of Environmental Quality (DEQ) is seeking comment on a draft reuse permit renewal for HJ Grathol.
HJ Grathol owns and operates a mixed commercial development located in the city of Athol in Kootenai County, Idaho. As part of this operation, HJ Grathol also operates an existing private municipal wastewater treatment plant, which produces Class A recycled water. The company is seeking to construct additional treatment processes and improve system automation in order to beneficially irrigate landscaped areas along the Highway 95 corridor, Farragut Trail, and at various commercial properties within the development area.
The draft reuse permit establishes monitoring requirements, limits on constituent loading, and conditions established by DEQ to protect public health and the environment. As part of the permitting process, HJ Grathol was required to show that its operation would not cause public health or environmental concerns.
The permit materials are available for public review at DEQ’s State Office (1410 North Hilton Street, Boise, Idaho), DEQ’s Coeur d’Alene Regional Office (2110 Ironwood Parkway, Coeur d’Alene, Idaho) and on DEQ’s website. Written comments will be accepted through October 6, 2025, at 5 p.m. Pacific Time. Submit comments electronically using the form below or by mail or email to:
Chris Westerman
Idaho Department of Environmental Quality
2110 Ironwood Parkway
Coeur d’Alene, ID 83814
chris.westerman@deq.idaho.gov
Related Documents
Permit and associated materials
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
DEQ seeks comment on draft IPDES permit for city of Genesee wastewater treatment plant
Accepting comments from September 2, 2025, through October 2, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks comment on a draft Idaho Pollutant Discharge Elimination System (IPDES) permit for the city of Genesee wastewater treatment plant.
The city applied for a wastewater discharge permit for its facility in Genesee, Idaho. The permit would authorize the discharge of treated municipal wastewater year-round to Cow Creek for five years. The permit identifies the pollutants of concern and the required limits for each pollutant or parameter, and monitoring and reporting requirements necessary to ensure compliance with the permit and protect human health and the environment.
The draft permit and fact sheet are available for review at DEQ’s state office (1410 N. Hilton St. Boise, Idaho), DEQ’s Lewiston Regional Office (1118 F St. Lewiston, Idaho), and on DEQ’s website.
Written comments will be accepted through October 2, 2025, at 5 p.m. MDT. A public meeting may be held, if requested in writing, by September 16, 2025. Comments should address water quality considerations, include supporting materials where available, and reference the city’s wastewater treatment plant and permit number ID0030112.
Submit comments using the form below or via mail or email to Karen Frazier:
Karen Frazier
Idaho Department of Environmental Quality
1410 N. Hilton St.
Boise, ID 83706
Karen.Frazier@deq.idaho.gov
Submit requests for a public meeting electronically using the form below or by mail or email to Amy Southern:
Amy Southern
Idaho Department of Environmental Quality
1410 N. Hilton St.
Boise, ID 83706
Related Documents
Draft permit and supporting materials
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
DEQ seeks comment on draft 401 water quality certification for Blacktail bank stabilization project
Accepting comments from August 27, 2025, through September 17, 2025.
The Idaho Department of Environmental Quality (DEQ) is seeking comment on a draft water quality certification for the Blacktail bank stabilization project.
The objective of the proposed project is to stabilize a severely eroded unstable section of shoreline along Ririe Reservoir using riprap. Approximately 833.33 cubic yards of riprap, in varying sizes, will be placed along a 250-foot-long section of shoreline, extending 25 feet in width and up to 10 feet in height.
Based upon review of the federal permit application, readily available water quality related materials, and certification request in accordance with 40 C.F.R. §§ 121.5 (b) and (c) and 121.7 (c), DEQ, certifies that if the permittee complies with the terms and conditions imposed by the federal permit and the conditions set forth in this water quality certification, then it is reasonable for DEQ to conclude that the activity will comply with water quality requirements, including applicable requirements of the Clean Water Act §§ 301, 302, 303, 306, and 307, Idaho’s “Water Quality Standards” (IDAPA 58.01.02), and other appropriate water quality requirements of state law.
The draft certification is available for review on DEQ’s website and at DEQ’s State Office. Written comments will be accepted through September 17, 2025, at 5 p.m. Mountain Time. Submit comments electronically using the form below or by mail or email to:
Destiny Locke
900 N. Skyline Drive, Suite B
Idaho Falls, ID 83402
destiny.locke@deq.idaho.gov
Related Documents
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
DEQ seeks comment on request to implement federal municipal solid waste landfills requirements
Accepting comments from September 16, 2025, through October 16, 2025.
The Idaho Department of Environmental Quality (DEQ) is seeking comment on a request for delegated authority to implement emission guidelines for municipal solid waste landfills.
The request was submitted to the United States Environmental Protection Agency and seeks authority over the “Federal Plan Requirements for Municipal Solid Waste Landfills That Commenced Construction On or Before July 17, 2014, and Have Not Been Modified or Reconstructed Since July 17, 2014” (40 CFR Part 62, Subpart OO). This would allow the State of Idaho to assume primacy for managing emission control requirements for eligible municipal solid waste landfills within the state.
The proposed submittal is available for public review on DEQ’s website and at DEQ’s State Office (1410 North Hilton Street, Boise, Idaho). Written comments will be accepted through October 16, 2025, at 5 p.m. MST. A public hearing is scheduled for October 16, 2025, at 2:00 pm MST at DEQ’s State Office or via Teams.
Submit comments electronically using the form below or by mail or email to:
Dianne Hobbs
Idaho Department of Environmental Quality
1410 N. Hilton Street
Boise, ID 83706
Dianne.Hobbs@deq.idaho.gov
Related Documents
Delegation submittal
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.