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

All Water Districts


Arbuckle (012) Country Estates (008) Lime Saddle (003) River Island (014)
Benbow (021) Ferndale (006) Magalia (004) Stirling Bluffs (005)
Black Butte (010) Hat Creek (023) Metropolitan (018) Strawberry (013)
Buzztail (020) Johnson Park (007) Mt. Lassen (015) Traver (019)
California Pines (011) Larkspur Meadows (022) Paradise Pines (002) Tulare (016)


The following are active Rules and Schedules which pertain to ALL Districts. They govern how Del Oro can conduct business as a water utility company. Tariffs and special Schedules specific to individual Districts can be found on each District's page.

Advice Letter 514-A

Updated on 08 October 2019

  • Emergency Disaster Relief Notice
  • Effective: September 9, 2019

Advice Letter 514

Updated on 10 September 2019

  • Emergency Disaster Relief Customer Outreach Plan
  • Effective: September 9, 2019

Advice Letter 511-A

Updated on 04 June 2019

  • Catastrophic Wildfire Surcharge
  • Effective: June 8, 2019

CPUC Resolution W-5193

Updated on 02 July 2019

  • CPUC Resolution W-5193 Authorizing AL 511-A
  • Effective: May 30, 2019

Advice Letter 511

Updated on 04 June 2019

  • Catastrophic Wildfire Surcharge
  • Effective: Refer to AL 511-A

Advice Letter 505

Updated on 12 November 2018

  • Interim Disaster Relief
  • Effective: November 12, 2018

Advice Letter 507

Updated on 25 January 2019

  • Modifications to Schedule UF: CPUC Surcharge
  • Effective: April 1, 2019

Advice Letter 504

Updated on 12 November 2018

  • Revise Tax Gross Up on CIAC and AIAC
  • Effective: January 1, 2018

Advice Letter 495

Updated on 27 February 2018

  • Request to Establish the "Tax Cuts and Job Act" Memorandum Account
  • Effective: January 1, 2018

Advice Letter 494

Updated on 10 January 2018

  • Modifications to Schedule UF: CPUC Surcharge
  • Effective: January 1, 2018

Advice Letter 492

Updated on 27 February 2018

  • Request to Establish Point of Use Memorandum Account
  • Effective: March 1, 2017

Advice Letter 484

Updated on 10 January 2018

  • Request to Establish Sustainable Groundwater Management Act Memorandum Account
  • Effective: May 23, 2017

Advice Letter 471

Updated on 18 April 2017

  • Modifications to Schedule UF: CPUC Surcharge
  • Effective: January 1, 2017

Advice Letter 460

Updated on 21 July 2016

  • Modifications to Rule 14.1 & Schedule 14.1
  • Effective: June 29, 2016

Advice Letter 429

Updated on 18 April 2017

  • Modifications to Schedule UF: CPUC Surcharge
  • Effective: January 1, 2016
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