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 495

Updated on 27 February 2018

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

Advice Letter 484

Updated on 10 January 2018

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

Advice Letter 460

Updated on 21 July 2016

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

Rules 1-21

Updated on 07 February 2020

  • All Rules for Del Oro Water Company

Schedule LC - Late Charges

Updated on 11 February 2020

  • Advice Letter 518
  • Effective: February 1, 2020

Schedule UF - CPUC Surcharge

Updated on 01 April 2019

  • Resolution W-4896
  • Effective: April 1, 2019
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