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 521

Updated on 21 May 2020

  • Catastrophic Wildfire Surcharge Extension
  • Effective: May 21, 2020

Advice Letter 516-A

Updated on 19 February 2020

  • Statewide Stabilization General Rate Case
  • Effective: Pending

Advice Letter 519

Updated on 14 January 2020

  • Amendment to Rule No. 3 - Application for Service
  • Effective: Pending

Advice Letter 518

Updated on 14 January 2020

  • Shutoff Protections per Senate Bill 998
  • Effective: February 1, 2020

Advice Letter 517

Updated on 07 January 2020

  • Interim Rate CPI
  • Effective: January 1, 2020

Advice Letter 516

Updated on 27 December 2019

  • General Rate Case for All Districts
  • Effective: Pending

Advice Letter 515

Updated on 11 November 2019

  • Request to Establish PSPL Memorandum Account
  • Effective: Pending

Advice Letter 514-A

Updated on 11 November 2019

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

Advice Letter 514

Updated on 11 November 2019

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

Advice Letter 511-A

Updated on 30 March 2020

  • 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 30 March 2020

  • 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
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