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Dixon/Solano RCD

Water Quality Coalition

Pick up water sample bottle at the following locations:

Dixon/Solano RCD Water Quality Coalition

1170 N. Lincoln Street, Suite 110

Dixon, CA 95620

(707) 678-1655 x103, 100 or 102

Call before stopping by the office to verify someone is here.


Grow West Dixon

8751 Pedrick Road

Dixon, CA 95620

(707) 678-5564

M-F 7am-4pm Stop by during normal business hours. 


Dellavalle Labs

502 Mace Blvd, Suite 2B

Davis, CA 95618

(530) 400-1346 (Annie Burkholder)

M-W 8am-3pm or by appointment

The information about providers and services contained on this website does not constitute endorsement or recommendation by Dixon RCD and/or D/S RCD Water Quality Coalition and is presented only as a courtesy to our Coalition Members.

ILRP-Irrigated Lands Regulatory Program

Drinking Water Well Monitoring Program

Drinking Water Well Monitoring started in January 2022.  If you have a drinking water well on a parcel enrolled in the ILRP actively used for drinking and cooking and you answered the question on the farm evaluation survey as having at least one well, you should have received a packet from the Regional Water Quality Control Board in late January. If you did not receive notification, check with your Reporter (tenant), if applicable, otherwise, contact the Regional Board at (916) 464-4611 or

The first sample requirement is due by December 31, 2022.


Links to resources: 

Geo Tracker Database

Geo Tracker Database Tutorial

Regional Water Board-ILRP Website-Drinking Water Well Monitoring

ILRP-Drinking Water Well Monitoring FAQ-Frequently Asked Questions

List of Certified Environmental Laboratory Accreditation Program (ELAP) Labs 

ILRP-Drinking Water Well Member Information Form

Drinking Water Well Notification Template

DWW Quick Guide

Dellavalle Laboratory Website

Dellavalle Lab Fillable Water Work Request Form 

Dellavalle Laboratory Cost List

Residential Water Treatment Systems State Water Board's Approved List





Recorded on: JANUARY 18, 2022 

Video Duration: 56 minutes

This is a recording of the virtual meeting about the new water well sampling requirement for landowners that have drinking water wells on parcels enrolled in the ILRP (Irrigated Lands Regulatory Program). This program began on January 2022. 


  • Bob Ditto - Regional Board – Presentation on the Drinking Water Well Monitoring Program

  • Annie Burkholder - Dellavalle Laboratory – Presentation water sample proper handling, what’s required and lab/upload costs.

  • Q & A with Mr. Ditto, Ms. Burkholder and the D/S RCD Water Quality Coalition Staff

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