Del Oro is proudly celebrating 50 years of serving California

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For 24-hour customer support or emergency, please call:

1-877-DEL-ORO-H2O
(1-877-335-6764)

For Billing or Service Inquiries:
1-530-717-2500

Arbuckle District - Advice Letters


The following Advice Letters are currently active or are pending approval by the California Public Utilities Commission

Advice Letters Files

Advice Letter 517

Updated on 08 January 2020

  • Interim Rate CPI
  • Effective: January 1, 2020

Advice Letter 511-A

Updated on 08 January 2020

  • Catastrophic Wildfire Surcharge
  • Effective: June 8, 2019

Advice Letter 454

Updated on 31 January 2017

  • General Rate Decrease of 16%
  • Effective: Dec 6, 2016

Advice Letter 437

Updated on 31 January 2017

  • 2015 EPA Surcharge
  • Effective: Apr 13, 2016
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