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2023 Well Sampling

Ag Order 4.0 requires well sampling on ALL ranches between March 1st and May 31st of 2023. All enrolled ranches must sample the primary irrigation well, and ALL on farm domestic wells. 

If there is an inactive well on your ranch that you are unable to sample, please provide an explanation here:

My well does not need to be sampled because…

2023 Well Sampling Reports

The status of laboratory results and anticipated report distribution dates for 2023 well samples can be found here.

Domestic Well Sampling Requirements For 2023

Per Ag Order 4.0, ALL on-farm domestic wells must be sampled in March-May of 2023.  The samples must be analyzed by an ELAP-certified laboratory, and reported directly to GeoTracker.  Well owners/operators must also provide laboratory results to well users within 3 days of receipt.

Link to Domestic Well User Notification page.

Preservation, Inc. will assist our members with on-farm domestic well sampling in 2023.  We have negotiated group rates for sample collection, lab analysis, and GeoTracker reporting. Third-Party Members will be notified in early 2023 about their well sampling appointments (following notification, request to change the well sampling appointment should be sent to wells@ccwqp.org). 

Irrigation Well Sampling Requirements For 2023

Per Ag Order 4.0, the primary irrigation well from EVERY ranch must be sampled in March-May of 2023.  The samples must be analyzed by an ELAP-certified laboratory, and reported directly to GeoTracker. 

Preservation, Inc. will assist our members with primary irrigation well sampling in 2023.  We have negotiated group rates for sample collection, lab analysis, and GeoTracker reporting.  Third-Party Members will be notified in early 2023 about their well sampling appointments (following notification, request to change the well sampling appointment should be sent to wells@ccwqp.org). 

Other Well Sampling Requirements (to support TNA/INMP Reporting)

Growers required to report TNA under the previous Ag Order (3.0) are required to report TNA on their 2022 crops by March 1st, 2023. Your TNA report must provide the nitrate concentration from the primary irrigation well on each ranch.

Samples collected to meet the above “Irrigation Well Sampling Requirements” will also meet the TNA reporting requirement for the subsequent year.  However, since the TNA reporting deadline is generally March 1st, growers must use a previously-collected well sample to complete this section of the TNA report.  Subsequently, growers can use the 2023 primary irrigation well sample to complete any TNA reports that is due by March 1st of 2024. (By March 1st of 2024 new TNA/INMP reporting requirements will phase in per Ag Order 4.0, more information about the new TNA and INMP reporting requirements is available here). 

Other Resources

The Region 3 Water Board’s Groundwater Quality Monitoring and Reporting page can be accessed here.

A well monitoring/reporting guidance document from the Region 3 Water Board can be downloaded here.

Contact Info

  • PO Box 2227
    Watsonville, CA 95077
  • 831-761-8644 (phone)
  • 831-761-8695 (fax)
For a full list of contacts please
visit our contact page.

Latest News

Video replay of Member Workshops

Preservation, Inc. held three member workshops in November and December this year, with information on upcoming 2022 Third Party programs, fees, and member responsibilities.  You can view the video...
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