Category: Public Comment
DEQ seeks comment on a proposed settlement action with Lennar Homes of Idaho, LLC at Eagle Ridge Subdivision – Phase 1
Accepting comments from October 14, 2025, through November 14, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks public comment on a proposed settlement action with Lennar Homes of Idaho, LLC, located in Meridian, Idaho, for violations of the Clean Water Act and the “Idaho Pollutant Discharge Elimination System Rules” (IDAPA 58.01.25).
Lennar Homes obtained coverage under the Idaho Pollutant Discharge Elimination System (IPDES) 2022 Construction General Permit for Discharge Activities (Permit IDR10C05H) as an operator at Eagle Ridge Subdivision, Phase 1, site in Eagle, Idaho. DEQ alleges that on September 26, 2023, Lennar Homes of Idaho, LLC failed to comply with all applicable conditions of the Permit. DEQ prepared an expedited settlement agreement and consent order directing the company to resolve the violations and either pay a civil penalty or request a compliance conference. Lennar Homes resolved the violations, paid a civil penalty of $1,900, and signed the consent order.
The proposed settlement action is available for public review on DEQ’s website and at DEQ’s State Office (1410 N. Hilton Street, Boise, Idaho). Written comments will be accepted through November 14, 2025 at 5 p.m. Mountain Standard 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:
Ben Johnson
Idaho Department of Environmental Quality
1410 N. Hilton St.
Boise, ID 83706
ben.johnson@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 a proposed settlement action with Lennar Homes of Idaho, LLC at Cirrus Pointe
Accepting comments from October 14, 2025, through November 14, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks public comment on a proposed settlement action with Lennar Homes of Idaho, LLC, located in Eagle, Idaho, for violations of the Clean Water Act and the “Idaho Pollutant Discharge Elimination System Rules” (IDAPA 58.01.25).
Lennar Homes of Idaho, LLC obtained coverage under the Idaho Pollutant Discharge Elimination System 2022 Construction General Permit for Discharge Activities (permit IDR10C0IQ) as an operator at Cirrus Pointe by the Lake construction site in Caldwell, Idaho. DEQ alleges that on February 23, 2024, Lennar Homes failed to comply with all applicable conditions of the permit. DEQ prepared an expedited settlement agreement and consent order directing the company to resolve the violations and either pay a civil penalty or request a compliance conference. Lennar Homes resolved the violations, paid a civil penalty of $2,075, and signed the consent order. In compliance with Idaho Code 39-108(9) and IDAPA 58.01.25.500.04, DEQ is publishing the proposed settlement action for public comment.
The proposed settlement action is available for public review on DEQ’s website and at DEQ’s State Office (1410 N. Hilton St., Boise, Idaho). Written comments will be accepted through November 14, 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:
Ben Johnson
Idaho Department of Environmental Quality
1410 N. Hilton St.
Boise, ID 83706
ben.johnson@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 Tier II operating permit for LA Semiconductor LLC
Accepting comments from October 10, 2025, through November 10, 2025.
The Idaho Department of Environmental Quality seeks comment on a draft Tier II operating permit for LA Semiconductor LLC.
LA Semiconductor LLC operates an integrated circuit manufacturing facility in Pocatello, Idaho, primarily producing silicon wafers. Production steps include deposition, coating, cleaning/stripping, etching, and doping, which directly and indirectly generate air emissions. DEQ issued a Tier II operating permit for LA Semiconductor LLC in 2022, and the company is now seeking to renew the permit, which includes a facility emissions cap.
DEQ has determined that operation according to the proposed permit will not cause or significantly contribute to a violation of any ambient air quality standard and will not injure or unreasonably affect human or animal life or vegetation. DEQ has reviewed the application and completed an analysis of the information submitted by the applicant to renew Tier II facility emissions cap permit. Based on this analysis, DEQ proposes to issue the modified Tier II operating permit.
The draft permit materials are available for public review at DEQ’s State Office (1410 N. Hilton Street, Boise, Idaho) and on DEQ’s website. Written comments on the draft permit and supporting materials will be accepted through November 10, 2025, at 5 p.m. MST. Submit comments using the form below or via mail or email to:
Dianne Hobbs
1410 N. Hilton St.
Boise, ID 83706
dianne.hobbs@deq.idaho.gov
For technical assistance on questions concerning this project or the permitting process, contact Nachammai Vairavan at (208) 373-0502.
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 hazardous waste storage and treatment partial permit renewal for the Materials and Fuels Complex
Accepting comments from October 8, 2025, through November 24, 2025.
The Idaho Department of Environmental Quality (DEQ) is seeking comment on a hazardous waste storage and treatment partial permit renewal for the Materials and Fuels Complex at the Idaho National Laboratory (INL).
The facility is located in Bingham County, Idaho, and is operated by the U.S. Department of Energy and Battelle Energy Alliance. The hazardous and mixed waste management units store and treat a variety of wastes generated from past nuclear reactor operations and current nuclear reactor fuel research. The partial permit renewal was requested by the U.S. Department of Energy and sets forth procedural requirements for treatment and storage of mixed waste, and eventual closure of the units to ensure protection of human health and the environment.
The draft permit materials are available for review on DEQ’s website. Written comments will be accepted through November 24, 2025, at 5 p.m. Mountain Time. Submit comments electronically using the form below or by mail or email to:
Daryl Sawyer
Hazardous Waste Permit Supervisor
1410 N. Hilton St.
Boise, ID 83706
Daryl.Sawyer@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 401 water quality certification for 2026 US Army Corps of Engineers 404 Nationwide Permits
Accepting comments from October 6, 2025, through November 5, 2025.
The Idaho Department of Environmental Quality (DEQ) is seeking comment on a draft water quality certification for the 2026 US Army Corps of Engineers (USACE) § 404 Nationwide Permits (NWPs).
USACE NWPs are a type of general permit issued on a nationwide basis for activities that have minimal impacts on the environment. Projects that propose in-water work, including streams and wetlands, may require a USACE permit and DEQ § 401 water quality certification.
The proposed USACE NWPs cover 58 categories of activities. The current NWPs were approved in 2021 and expire on March 14, 2026. On June 18, 2025, USACE published a notice in the Federal Register proposing the reissuance of 56 existing NWP categories, issuance of one new permit category, and modifications to the general conditions and definitions. The USACE NWPs are issued for a five-year period.
Based upon review and evaluation of the proposed 2026 NWPs, Walla Walla District’s Regional Conditions, and associated certification request received on June 18, 2025, DEQ certifies that if the permittee complies with the terms and conditions of the federal permits, including the Regional Conditions established by USACE, as well as the conditions contained in this water quality certification, then it is reasonable for DEQ to conclude that the authorized activities will comply with applicable 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 provisions of state law governing water quality protection.
The draft certification is available for review on DEQ’s website. Written comments will be accepted through November 5, 2025, at 5 p.m. Mountain Time. Submit comments electronically using the form below or by mail or email to:
Tambra Phares
1410 N. Hilton St.
Boise, Idaho 83706
tambra.phares@deq.idaho.gov
Related Documents
2026 US Army Corps of Engineers § 404 Nationwide Permits
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 HJ Grathol, LLC
Accepting comments from October 6, 2025, through November 6, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks comment on a proposed settlement action with HJ Grathol, LLC, located in Athol, Idaho.
DEQ proposes entering into a Compliance Agreement Schedule with HJ Grathol, LLC to ensure compliance at The Crossings, a private municipal wastewater treatment and reuse facility, as allowed under Idaho Code § 39-116A. The facility was previously authorized under Reuse Permit M-246-01, which expired on August 26, 2025, and is now being replaced by Reuse Permit M-246-02.
The schedule and permit establish enforceable milestones to comply with the “Wastewater Rules” (IDAPA 58.01.16) and the “Recycled Water Rules” (IDAPA 58.01.17). Requirements include developing monitoring and operation plans, updating facility management documents, and completing a lagoon seepage test. Ownership or operational transfer of the facility is restricted until DEQ determines the facility has achieved compliance based on demonstrated performance.
The proposed settlement action is available for public review on DEQ’s Public Comment Opportunities page and at the DEQ State Office, 1410 North Hilton Street, Boise, Idaho 83706. Written comments will be accepted until 5 p.m. MST on November 6, 2025. This settlement action may be amended or adjusted in the future, in which case, DEQ may provide an additional public comment opportunity.
Submit comments using the form below or by email or mail to:
Jayson Foley
Wastewater Enforcement Coordinator
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 proposed settlement action with Ames Management LLC
Accepting comments from October 2, 2025, through November 3, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks comment on a proposed settlement action with Ames Management LLC, located in Boise, Idaho, for violations of the Clean Water Act and the “Idaho Pollutant Discharge Elimination System Rules” (IDAPA 58.01.25).
Ames Management LLC obtained coverage under the Idaho Pollutant Discharge Elimination System (IPDES) 2022 Construction General Permit for Discharge Activities, permit No. IDR10C0NI as an operator at The Mill site in Middleton, Idaho. DEQ alleges that on August 15, 2023, the company failed to comply with all applicable conditions of the permit. DEQ prepared an expedited settlement agreement and consent order directing Ames Management LLC to resolve the violations and either pay a civil penalty or request a compliance conference. Ames Management LLC has resolved the violations, made payment in full for the civil penalty of $3,295, and signed the consent order.
The proposed settlement action is available for public review on DEQ’s website and at DEQ’s State Office (1410 N. Hilton St., Boise, ID 83706). Written comments will be accepted through November 3, 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:
Ben Johnson
Wastewater Enforcement Coordinator
Idaho Department of Environmental Quality
1410 N. Hilton St.
Boise, ID 83706
ben.johnson@deq.idaho.gov
Related Documents
DEQ seeks comment on draft permit to construct for Gas Transmission Northwest, LLC
Accepting comments from September 23, 2025, through October 23, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks comment on a draft permit to construct for Gas Transmission Northwest, LLC.
Gas Transmission Northwest, LLC operates a compressor station located along a natural gas pipeline in Athol, Idaho. The compressor station consists of two turbine-driven compressors that move the natural gas through the pipeline. The turbines use the natural gas in the pipeline as fuel and provide energy for the compressors to induce the flow of the gas.
The company is proposing to modify its existing facility to increase the subzero temperature operating hours for the Solar Titan 130 turbine (Unit 5D).
DEQ has determined that construction and operation according to the proposed permit will not cause or significantly contribute to a violation of any ambient air quality standard and will not injure or unreasonably affect human or animal life or vegetation. DEQ has reviewed the application and completed an analysis of the information submitted by the applicant. Based on this analysis, DEQ proposes to issue the permit to construct.
Written comments will be accepted through October 23, 2025, at 5 p.m. MT. Submit comments electronically using the form below or by mail or email to:
Christina Boulay
1410 N. Hilton St.
Boise, ID 83706
Christina.Boulay@deq.idaho.gov
Related Documents
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 a proposed settlement action with Lennar Homes of Idaho, LLC at Eagle Ridge Subdivision – Phase 3
Accepting comments from October 14, 2025, through November 14, 2025.
The Idaho Department of Environmental Quality (DEQ) seeks public comment on a proposed settlement action with Lennar Homes of Idaho, LLC, located in Meridian, Idaho, for violations of the Clean Water Act and the “Idaho Pollutant Discharge Elimination System Rules” (IDAPA 58.01.25).
Lennar Homes of Idaho, LLC obtained coverage under the Idaho Pollutant Discharge Elimination System 2022 Construction General Permit for Discharge Activities (Permit IDRlOC0DJ) as an operator at Eagle Ridge Subdivision – Phase 3 construction site in Eagle, Idaho. DEQ alleges that on September 26, 2023, the company failed to comply with all applicable conditions of the Permit. DEQ prepared an expedited settlement agreement and consent order directing Lennar Homes to resolve the violations and either pay a civil penalty or request a compliance conference. The company resolved the violations, paid a civil penalty of $4,625, and signed the consent order.
The proposed settlement action is available for public review on DEQ’s website and at DEQ’s State Office (1410 N. Hilton Street, Boise, Idaho). Written comments will be accepted through November 14, 2025 at 5 p.m. Mountain Standard 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:
Ben Johnson
Idaho Department of Environmental Quality
1410 N. Hilton St.
Boise, ID 83706
ben.johnson@deq.idaho.gov
Related Documents
Proposed settlement action
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/.