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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 - Archive

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.

Tariff Book for ALL Districts Files

Advice Letter 511-A

Updated on 04 June 2019

  • Catastrophic Wildfire Surcharge
  • Effective: June 8, 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

Advice Letter 408

Updated on 03 June 2015

  • Modifications to Rule 14.1: Water Conservation & Rationing
  • Effective: June 1, 2015

Table of Contents

Updated on 05 January 2016

  • Table of Contents for Complete Tariff & Rule Book

Preliminary Statement

Updated on 05 January 2016

  • Preliminary Statement of Tariff and Rule Book
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