Grassland Bypass Project
To request a copy of documents listed on this page, please contact Ashley Peters at Ashley.Peters@waterboards.ca.gov
Table of Contents
Background Information
Two sets of Waste Discharge Requirements (WDRs) apply to the geographic area known as the Grassland Drainage Area. They are for surface water discharges from the Grassland Bypass Project, which has been under WDRs since 1998 and predates the Irrigated Lands Regulatory Program (ILRP), and groundwater discharges from the Grassland Drainage Area, which has been under WDRs since 2015 and is permitted through the ILRP.
WDRs for the Grassland Bypass Project (surface water)
- Waste Discharge Requirements for San Luis & Delta-Mendota Water Authority and United States Department of the Interior, Bureau of Reclamation, Surface Water Discharges from the Grassland Bypass Project, Order No. R5-2019-0077, Adopted on 5 December 2019 (replaces Order No. R5-2015-0094)
- Order No. R5-2015-0094, Adopted on 31 July 2015 (replaced by Order No. R5-2019-077)
WDRs for Growers in the Grassland Drainage Area (groundwater)
- Waste Discharge Requirements General Order for Growers in the Grassland Drainage Area, Order R5-2015-0095-07, *Includes revisions through 25 May 2022
- Revisions
- 07: Order No. R5-2015-0095, Revision of Monitoring and Reporting Program, Issued by the Executive Officer on 25 May 2022
- 06: Order No. R5-2021-0053, Amending Waste Discharge Requirements, Adopted on 15 October 2021
- 05: Order No. R5-2021-0018, Amending Waste Discharge Requirements, Adopted on 22 April 2021
- 04: Order No. R5-2015-0095, Revision of Monitoring and Reporting Program, Issued by the Executive Officer on 28 February 2020
- 03: Order No. R5-2019-0001, Amending Waste Discharge Requirements, Adopted on 7 February 2019
- 02: Order No. R5-2015-0095, Revision of Monitoring and Reporting Program, Issued by the Executive Officer on 5 May 2017
- 01: Order No. R5-2016-0015, Amending Waste Discharge Requirements, Adopted on 19 February 2016
- Revisions
- Order R5-2015-0095, Waste Discharge Requirements General Order for Growers in the Grassland Drainage Area, Adopted on 31 July 2015
Grassland Bypass Project Submittals (surface water)
To request a copy of a submittal listed below, please reach out to the Program Contact listed under Contact Us.
- 2023 Annual Monitoring Report (25 April 2024)
- Mud Slough Selenium Exceedance Report (13 March 2024)
- Grassland Bypass Project Technical and Monitoring Report, Part 2, Pursuant to California Water Code 13267 (31 October 2023)
- 2024 Surface Water Pesticide Monitoring Proposal (14 November 2023)
- Grassland Bypass Project Sediment Toxicity at Site D (14 September 2023)
- 2022 Annual Monitoring Report (27 April 2023)
- 2023 Surface Water Pesticide Monitoring Proposal (30 November 2022)
- Revised 2021 Annual Monitoring Report (15 July 2022)
- 2021 Annual Monitoring Report (30 April 2022)
- Memorandum: Leak into the San Luis Drain (27 April 2022)
- 2022 Surface Water Pesticide Monitoring Proposal (16 December 2021)
- Revised Grassland Bypass Project Technical and Monitoring Report Pursuant to California Water Code Section 13267 (14 December 2021)
- January to June 2021 Electronic Data Deliverable (25 October 2021)
- 2020 Annual Monitoring Report Memorandum (25 August 2021)
- Grassland Bypass Project Technical and Monitoring Report Pursuant to California Water Code Section 13267 (28 July 2021)
- Revised Drainage Management Plan (31 May 2021)
- 2020 Annual Monitoring Report (30 April 2021)
- Grassland Bypass Project data can be accessed through the California Environmental Data Exchange Network
Contact Us
- Program Contact
- Ashley Peters
(916) 464-4857
Ashley.Peters@waterboards.ca.gov
- Ashley Peters
- Web page problems: webmaster5@waterboards.ca.gov
(Page last updated 5/3/24)
