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Current Groundwater Plant Design Guidelines
Current groundwater plant design guidelines (effective Oct. 1, 2021)
Last updated: July 1, 2021
Supplement to IDM Chapter 9 (May 16, 2025)
Last Updated: 05/16/2025
2022 IDM Cover Letter and Executive Summary
Executive summary and cover letter for the 2022 edition of the Infrastructure Design Manual
Last updated: July 1, 2022
2023 Cover Letter & Executive Summary
2023 Cover Letter and Executive Summary
Updated November 27, 2023
2023 Review Cycle IDM Redlines
2022-2023 Review Cycle Infrastructure Design Manual Redlines
Updated 11-27-2023
Supplement to IDM Chapter 9 (May 30, 2024)
Last Updated: 05/30/2024
Historical Groundwater Plant Design Guidelines
Historical groundwater plant design guidelines
Last updated: Jan. 2011