DEL ORO RIVER ISLAND SERV TERR #1

California - Community Water System - PWSID: CA5400665

System Information

PWSID	CA5400665
System Name	DEL ORO RIVER ISLAND SERV TERR #1
System Type	Community Water System
Water Source	Surface Water
Activity Status	Active
Owner Type	Private
EPA Region	09
Serves School	No
Wholesaler	No
First Reported	Mar 22, 1979
Last Reported	Mar 20, 2026

Location & Contact

State	California
City	CHICO
ZIP Code	95927
Address	DRAWER 5172
Organization	FORTINO, ROBERT
Phone	530-894-1100

Population & Service

Population Served	1,280
Service Connections	388

Drinking Water Violations (147)

This water system has 147 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Apr 1, 2024	Jun 30, 2024	MCL	Yes	No	13 MG/L	10 mg/L	10	Archived	Jun 30, 2024	-
Apr 1, 2024	Jun 30, 2024	MCL	Yes	No	13 MG/L	10 mg/L	10	Archived	Jun 30, 2024	-
Apr 1, 2024	Jun 30, 2024	MCL	Yes	No	41.3 PCI/L	30 ug/L	20	Archived	Jun 30, 2024	-
Jan 1, 2024	Mar 31, 2024	MCL	Yes	No	39.2 PCI/L	30 ug/L	20	Archived	Mar 31, 2024	-
Oct 1, 2023	Dec 31, 2023	MCL	Yes	No	44 PCI/L	30 ug/L	20	Archived	Dec 31, 2023	-
Aug 1, 2023	Aug 31, 2023	MCL	Yes	No	13 MG/L	10 mg/L	10	Archived	Aug 31, 2023	-
Jul 1, 2023	Jul 31, 2023	MCL	Yes	No	11.3 MG/L	10 mg/L	10	Archived	Jul 31, 2023	-
Jul 1, 2023	Sep 30, 2023	MCL	Yes	No	42.3 PCI/L	30 ug/L	20	Archived	Sep 30, 2023	-
Jun 1, 2023	Jun 30, 2023	MCL	Yes	No	11.7 MG/L	10 mg/L	10	Archived	Jun 30, 2023	-
Apr 1, 2023	Jun 30, 2023	MCL	Yes	No	42.8 PCI/L	30 ug/L	20	Archived	Jun 30, 2023	-
Jan 1, 2023	Mar 31, 2023	MCL	Yes	No	44.1 PCI/L	30 ug/L	20	Archived	Mar 31, 2023	-
Oct 1, 2022	Dec 31, 2022	MCL	Yes	No	44.7 PCI/L	30 ug/L	20	Archived	Dec 31, 2022	-
Jul 1, 2022	Sep 30, 2022	MCL	Yes	No	46 PCI/L	30 ug/L	20	Archived	Sep 30, 2022	-
Apr 1, 2022	Jun 30, 2022	MCL	Yes	No	47.3 PCI/L	30 ug/L	20	Archived	Jun 30, 2022	-
Jan 1, 2022	Mar 31, 2022	MCL	Yes	No	47.5 PCI/L	30 ug/L	20	Archived	Mar 31, 2022	-
Oct 1, 2021	Dec 31, 2021	MCL	Yes	No	48 PCI/L	30 ug/L	20	Archived	Dec 31, 2021	-
Jul 1, 2021	Sep 30, 2021	MCL	Yes	No	48.5 PCI/L	30 ug/L	20	Archived	Sep 30, 2021	-
Apr 1, 2021	Jun 30, 2021	MCL	Yes	No	46.8 PCI/L	30 ug/L	20	Archived	Jun 30, 2021	-
Jan 1, 2021	Mar 31, 2021	MCL	Yes	No	43.8 PCI/L	30 ug/L	20	Archived	Mar 31, 2021	-
Oct 1, 2020	Dec 31, 2020	MCL	Yes	No	43 PCI/L	30 ug/L	20	Archived	Dec 31, 2020	-
Jul 1, 2020	Sep 30, 2020	MCL	Yes	No	41.8 PCI/L	30 ug/L	20	Archived	Sep 30, 2020	-
Apr 1, 2020	Jun 30, 2020	MCL	Yes	No	42 PCI/L	30 ug/L	20	Archived	Jun 30, 2020	-
Jan 1, 2020	Mar 31, 2020	MCL	Yes	No	43.6 PCI/L	30 ug/L	20	Archived	Mar 31, 2020	-
Oct 1, 2019	Dec 31, 2019	MCL	Yes	No	41.8 PCI/L	30 ug/L	20	Archived	Dec 31, 2019	-
Jul 1, 2019	Sep 30, 2019	MCL	Yes	No	41.6 PCI/L	30 ug/L	20	Archived	Sep 30, 2019	-
Apr 1, 2019	Jun 30, 2019	MCL	Yes	No	41.8 PCI/L	30 ug/L	20	Archived	Jun 30, 2019	-
Jan 1, 2019	Mar 31, 2019	MCL	Yes	No	42.8 PCI/L	30 ug/L	20	Archived	Mar 31, 2019	-
Jul 1, 2018	Sep 30, 2018	MCL	Yes	No	45 PCI/L	30 ug/L	20	Archived	Sep 30, 2018	-
Apr 1, 2018	Jun 30, 2018	MCL	Yes	No	45 PCI/L	30 ug/L	20	Archived	Jun 30, 2018	-
Jan 1, 2018	Mar 31, 2018	MCL	Yes	No	41 PCI/L	30 ug/L	20	Archived	Mar 31, 2018	-
Oct 1, 2017	Dec 31, 2017	MCL	Yes	No	31 PCI/L	30 ug/L	20	Archived	Dec 31, 2017	-
Jul 1, 2017	Sep 30, 2017	MCL	Yes	No	32.4 PCI/L	30 ug/L	20	Archived	Sep 30, 2017	-
Jul 1, 2017	Sep 30, 2017	MCL	Yes	No	12.1 MG/L	10 mg/L	10	Resolved	Sep 30, 2017	-
Jul 1, 2017	Sep 30, 2017	MCL	Yes	No	12.1 MG/L	10 mg/L	10	Resolved	Sep 30, 2017	-
Jul 1, 2016	Sep 30, 2016	MR	No	Yes	-	10 mg/L	-	Resolved	Sep 30, 2016	-
Jul 1, 2016	Sep 30, 2016	MR	No	Yes	-	10 mg/L	-	Resolved	Sep 30, 2016	-
Jul 1, 2016	Sep 30, 2016	MCL	Yes	No	31.4 PCI/L	30 ug/L	20	Archived	Sep 30, 2016	-
Apr 1, 2016	Jun 30, 2016	MCL	Yes	No	31.6 PCI/L	30 ug/L	20	Archived	Jun 30, 2016	-
Jan 1, 2016	Mar 31, 2016	MCL	Yes	No	33.4 PCI/L	30 ug/L	20	Archived	Mar 31, 2016	-
Oct 1, 2015	Dec 31, 2015	MCL	Yes	No	33.2 PCI/L	30 ug/L	20	Archived	Dec 31, 2015	-
Jul 1, 2015	Sep 30, 2015	MCL	Yes	No	29.7 PCI/L	30 ug/L	20	Archived	Sep 30, 2015	-
Apr 1, 2015	Jun 30, 2015	MCL	Yes	No	32.5 PCI/L	30 ug/L	20	Archived	Jun 30, 2015	-
Jan 1, 2015	Mar 31, 2015	MCL	Yes	No	35.9 PCI/L	30 ug/L	20	Archived	Mar 31, 2015	-
Oct 1, 2014	Dec 31, 2014	MCL	Yes	No	31.7 PCI/L	30 ug/L	20	Archived	Dec 31, 2014	-
Jul 1, 2014	Sep 30, 2014	MCL	Yes	No	42.4 PCI/L	30 ug/L	20	Archived	Sep 30, 2014	-
Apr 1, 2014	Jun 30, 2014	MCL	Yes	No	47.6 PCI/L	30 ug/L	20	Archived	Jun 30, 2014	-
Jan 1, 2014	Mar 31, 2014	MCL	Yes	No	48.9 PCI/L	30 ug/L	20	Archived	Mar 31, 2014	-
Oct 1, 2013	Dec 31, 2013	MCL	Yes	No	54.7 PCI/L	30 ug/L	-	Archived	Dec 31, 2013	-
Jul 1, 2013	Sep 30, 2013	MCL	Yes	No	47.3 PCI/L	30 ug/L	20	Archived	Sep 30, 2013	-
Apr 1, 2013	Jun 30, 2013	MCL	Yes	No	41.5 PCI/L	30 ug/L	20	Archived	Jun 30, 2013	-

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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