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Committee refines flow-meter rules, extends calibration window and clarifies missing-data policy

3204327 · May 7, 2025
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Summary

The committee approved refinements to the GSA's privately owned flow-meter rules, including a longer calibration window tied to the calendar year, clarified requirements for backup meters and meter-failure documentation, and a missing-data threshold that can move a farm unit to satellite measurement after two missing months.

The Madera County GSA Committee voted to recommend that the Board of Directors adopt refinements to the agency's flow-meter rules for privately owned and operated groundwater flow meters used as a primary measurement method.

Staff described the proposed refinements as clarifications and procedural fixes to improve meter performance, data quality and grower compliance. Key refinements presented included requiring monthly meter reads to be submitted between the first and tenth of the month with a grace period to the twentieth; clarifying that allocation reports cannot be issued if data are not received by the twentieth; stating that missing two months of usable data in a calendar year may result in the farm unit being moved to a satellite method (Land IQ currently the default); extending the calibration window so calibration certificates remain valid through the end of the calendar year in which they would otherwise expire; and adding steps to document meter failures (photos of last reading, prompt notification to GSA staff, installation of replacement meters and submission of photos within a 10-business-day window).

Jacinta Cabral and staff explained vendors and growers reported recurring error messages from a small subset of meter makes and that some installations required additional documentation. The third-party review process was clarified to include review of submitted data, meter installation and calibration reports, and irrigation practices and schedules when low usage appears unusual.

Growers and stakeholder commenters including Larkin Harmon, Michelle Lascoydie and Devin Aviles urged the committee to preserve growers' ability to use meters, requested reasonable timelines for meter replacement and calibration to reflect field realities, and recommended that the county consider 10 business days rather than 10 calendar days for meter replacement windows; staff agreed to change the language to 10 business days. Stakeholders also urged clearer language distinguishing between missing actual meter-recorded data and late reporting of meter reads by the grower; staff said the proposed rule clarifies that “missing” means not submitted and agreed to update the rule language to explicitly include late or unusable reads.

After discussion staff agreed to refine the draft resolution to: (1) change the replacement-window language to 10 business days; (2) clarify that missing, late or unusable reads count toward the two-month threshold; and (3) allow reapproval for farm units that move off meters to use meters again in the future after reinspection. The committee moved, seconded and recommended the Board adopt the refinements. The roll call vote was recorded 2-0 in favor.