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

River Island 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 493

Updated on 25 June 2018

  • Request Authority for SRF Loan & Surcharge
  • Effective: June 21, 2018

Advice Letter 477

Updated on 10 March 2017

  • Consumer Price increase: 2.1%
  • Effective: March 8, 2017

Advice Letter 470

Updated on 10 March 2017

  • Interim Rate Surcharge
  • Effective: January 1, 2017

Advice Letter 457

Updated on 10 March 2017

  • General Rate Case
  • Effective: December 26, 2016

Advice Letter 451

Updated on 28 September 2016

  • Drought SLRRMA Surcharge
  • Effective: September 20, 2016

Advice Letter 436

Updated on 27 April 2016

  • Purchased Water Surcharge
  • Effective: March 23, 2016

Advice Letter 433

Updated on 31 January 2017

  • Transportation (Fuel) Surcharge
  • Effective: May 17, 2016

Advice Letter 300

Updated on 21 May 2013

  • Surface Water Treatment Plant Project
  • Effective: Pending
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