Expert panel approves draft nitrogen-management report, urges phased route to limits and more funding

A State Water Resources Control Board expert panel on agricultural water resources voted unanimously June 5 to approve a revised draft report that lays out technical recommendations and possible pathways for reducing nitrate leaching from agricultural lands.

The panel, which met in Sacramento and online, agreed the report should present three implementation “tracks”: immediate program adjustments for quick fixes, informational orders or bulletins for short-term guidance, and a longer public rulemaking process if numeric limits are adopted. “No es un arreglo simple y rápido,” the panel chair said in Spanish as she framed the timeline for Board review, referring to the multi-step approach the panel wants the Board to consider.

Why it matters: The draft responds to a petition and to the San Joaquin–era orders that prompted the technical review. Panel members emphasized that statewide action will need regional tailoring: some regions recommended publishing more granular data (region 3’s approach was cited as an example), while others warned that mandatory disclosure of individual farm locations could cause unintended harm to small operators.

Key recommendations and technical points the panel endorsed include:
- A three-tier implementation framework: (1) immediate adjustments to the existing program; (2) informational orders or bulletins to guide near-term practice changes; and (3) a rulemaking pathway to set any numeric application or discharge limits after public workshops and additional study.
- Definitions and special-case handling for “small/diversified farms”: panelists discussed a proposed default definition (up to about 80 acres and at least five distinct crop types concurrently) but emphasized regional discretion and the option for larger operations to qualify if they demonstrably reduce nitrate leaching through practices and monitoring.
- Alternative compliance or reporting routes for certain operation types (in particular nurseries and some greenhouse operations) where drainage or groundwater monitoring may be a more practical metric than field mass-balance reporting.
- Monitoring guidance that centers on practicability: a soil-testing approach tied to the crop root zone and to post-harvest/prod‑cycle sampling was favored, but panelists warned against prescribing a single depth or sampling protocol statewide.
- Additional research priorities, including evaluation of organic/regenerative systems’ impacts on nitrate leaching and pilot monitoring for nurseries.
- A clear caveat that implementation will depend on resources: panelists urged the Board and Legislature to identify funding—regional staff, coalition assistance and research grants were cited as likely needs.

On transparency and data-sharing, the panel agreed to recommend clearer guidance on which metrics should be published and how to protect sensitive location data while enabling public accountability. One panel member said regional variations in agricultural production made a one-size-fits-all disclosure rule impractical; others argued some level of non‑anonymous reporting (locations and acreage) is necessary for public trust and to target interventions.

Public commenters during the afternoon session urged faster statewide limits and cited communities already showing elevated nitrate in drinking water. ‘‘Mi comunidad y muchas otras comunidades no cumplen con los límites de nitrato,’’ one speaker said, urging the Board to act promptly to protect public health.

The vote: Richard (panel member) moved to approve the report as revised; Rut seconded. The panel recorded unanimous approval and agreed the staff and the panel chair would present the finalized report to the Board at its informational session on June 16. The panel instructed staff to circulate the final text, including the day’s edits, and to highlight where additional funding or research would be necessary.

What’s next: The panel’s approval sends the report to the State Water Resources Control Board for an informational presentation on June 16. If the Board elects to pursue numeric limits, the report envisions public workshops and further regional tailoring before any formal rulemaking.

The meeting agenda and recorded edits will be bundled and posted by staff; the panel recorded that there were 21 prior meetings leading to this final draft and that public comment opportunities will continue during Board consideration.