Protecting Public Health and the Environment.

Environmental Review

An Environmental Information Document (EID) is a written assessment describing the environmental impacts of a proposed wastewater or drinking water construction project. An EID must be completed by drinking water and clean water (wastewater) planning grant recipients who seek federal funding. In addition, before a loan offer may be made to a community for a project on either the DEQ drinking water or clean water fundable/priority list, an EID must be completed.

The EID must identify the major human-made and natural features of the environment that will be affected by the proposed project as well as direct, indirect, short-term, long-term, and cumulative effects. It must demonstrate that the project is environmentally sound and verify that any adverse environmental impacts have been avoided, minimized, or mitigated.

Upon receipt of an EID, DEQ reviews the document and makes a determination whether the EID meets state environmental review process requirements. If so, DEQ may issue one of the following environmental determinations on a project:

  • Categorical Exclusion (Cat Ex): Issued when DEQ determines that the actions proposed do not individually or cumulatively have a significant effect on the human environment.
  • Finding of No Significant Impact (FONSI): Issued when DEQ determines (1) the actions not otherwise categorically excluded will not have a significant effect on the human environment and (2) an environmental impact statement does not need to be prepared.

If the proposed project will significantly affect the quality of the human environment, an Environmental Impact Statement is required.

When a draft FONSI determination is issued, a public comment period is held and the FONSI is then finalized. Cat Ex determinations do not require a public comment period.

Resources

Maps

Forms

Agency Consultation Lists

Final Cat Ex and FONSI Environmental Determinations

Listed below are final Cat Ex and FONSI environmental determinations issued by DEQ between January 1, 2016 and present day for drinking water and wastewater grant and loan projects in Idaho:

Project Name Applicant Name Environmental Determination Issuance Date
Athol (City of) Drinking Water Improvements Project City of Athol Categorical Exclusion (Cat Ex) 05/29/19
Castle Mountain Creeks Homeowners Association Drinking Water Improvements Project Castle Mountain Creeks Homeowners Association Categorical Exclusion (Cat Ex) 05/03/19
Council (City of) Wastewater Improvements Project City of Council Finding of No Significant Impact (FONSI) 09/14/18
Crouch (City of) Drinking Water Improvements City of Crouch Categorical Exclusion (Cat Ex) 11/13/18
Culdesac (City of) Wastewater Improvement Project City of Culdesac Categorical Exclusion (Cat Ex) 08/01/18
Deary (City of) Drinking Water Improvements Project City of Deary Categorical Exclusion (Cat Ex) 02/06/19
Donnelly Water Systems Improvements City of Donnelly Categorical Exclusion (Cat Ex) 08/14/17
Franklin (City of) Drinking Water Improvement Project City of Franklin Categorical Exclusion (Cat Ex) 12/05/18
Garden Valley Ranchettes Drinking Water Facility Improvements Project Garden Valley Ranchettes Categorical Exclusion (Cat Ex) 01/18/19
Gooding (City of) Drinking Water Improvements City of Gooding Finding of No Significant Impact (FONSI) 09/21/16
Gooding (City of) Wastewater System Improvements City of Gooding Categorical Exclusion (Cat Ex) 01/23/18
Hayden Area Regional Sewer Board Wastewater Improvements Hayden Area Regional Sewer Board Finding of No Significant Impact (FONSI) 01/18/19
Heyburn (City of) Wastewater Treatment System and Collection System Improvement Project City of Heyburn Categorical Exclusion (Cat Ex) 05/13/19
Heyburn (City of) Water System Improvements City of Heyburn Finding of No Significant Impact (FONSI) 12/07/17
Idaho City Wastewater Facility Improvements City of Idaho City Categorical Exclusion (Cat Ex) 08/02/17
Iona Water System Improvement Project City of Ioan Finding of No Significant Impact (FONSI) 07/24/18
Lewiston (City of) Wastewater Improvement Project City of Lewiston Categorical Exclusion (Cat Ex) 01/07/19
Malad (City of) Wastewater Improvements City of Malad Finding of No Significant Impact (FONSI) 07/25/18
Mores Creek Rim Ranches Water District Drinking Water System Improvements Project Mores Creek Rim Ranches Water District Finding of No Significant Impact (FONSI) 09/17/18
Nampa (City of) Wastewater Treatment Improvements City of Nampa

Categorical Exclusion (Cat Ex)

12/03/18
New Meadows (City of) Drinking Water Improvements City of New Meadows Categorical Exclusion (Cat Ex) 05/10/18
Preston Drinking Water Improvement Project City of Preston Categorical Exclusion (Cat Ex) 11/16/17
Rapid River Water and Sewer District Water System Improvements Project Rapid River Water and Sewer District Categorical Exclusion (Cat Ex) 10/03/17
Rexburg (City of) Drinking Water Improvements Project City of Rexburg Finding of No Significant Impact (FONSI) 02/12/18
Rogerson Water District Drinking Water Project Rogerson Water District Categorical Exclusion (Cat Ex) 08/16/18
Snake River School District Wastewater System Improvements Project Snake River School District Categorical Exclusion (Cat Ex) 07/18/18
Southside Water and Sewer District Water System Improvements Southside Water and Sewer District Categorical Exclusion (Cat Ex) 08/14/17
Spirit Lake (City of) Drinking Water Improvements Project City of Spirit Lake Finding of No Significant Impact (FONSI)  08/02/19
Star Sewer and Water District Wastewater Improvements Star Sewer and Water District Finding of No Significant Impact (FONSI) 12/14/17
Stites (City of) Water System Improvements Project City of Stites Categorical Exclusion (Cat Ex) 06/08/18
Stites (City of) Wastewater Improvement Project City of Stites Categorical Exclusion (Cat Ex) 01/17/18
St. Maries (City of) Drinking Water Improvements Project City of St. Maries Categorical Exclusion (Cat Ex) 05/29/19
Sugar City (City of) Water System Improvements Project City of Sugar City Finding of No Significant Impact (FONSI) 10/13/17
Troy (City of) Drinking Water Improvements Project City of Troy Categorical Exclusion (Cat Ex) 05/30/18
Wayside Estates Water System Improvements Wayside Estates Categorical Exclusion (Cat Ex) 09/14/18
Willowbrook Estates Drinking Water Improvements Willowbrook Estates Homeowners Association Categorical Exclusion (Cat Ex) 10/16/18

 


Page Subscription

Staff Contacts

Grants and Loans Analyst
Adam Oliver
DEQ State Office
Water Quality Division
1410 N. Hilton
Boise, ID 83706
(208) 373-0406
adam.oliver@deq.idaho.gov

Grants and Loans Analyst
LaDonn Kaylor
DEQ State Office
Water Quality Division
1410 N. Hilton
Boise, ID 83706
(208) 373-0556
ladonn.kaylor@deq.idaho.gov

Related Pages

Rathdrum Prairie Aquifer Hydrogeology