ROYAL OAKS SUBDIVISION

Iowa — Community Water System — PWSID: IA5282303

System Information

PWSID	IA5282303
System Name	ROYAL OAKS SUBDIVISION
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Private
EPA Region	07
Serves School	No
Wholesaler	No
First Reported	Aug 26, 1995
Last Reported	Dec 19, 2025

Location & Contact

State	Iowa
City	OXFORD
ZIP Code	52322
Address	ATTN BRIAN PORTWOOD OPERATOR
Organization	ROYAL OAKS SUBDIVISION
Phone	319-936-4189

Population & Service

Population Served	163
Service Connections	65

Drinking Water Violations (41)

This water system has 41 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Contaminant	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Aug 1, 2024	—	Revised Total Coliform Rule	TT	Yes	No	—	—	—	Unaddressed	—	Revised Total Coliform Rule
Aug 1, 2024	—	Revised Total Coliform Rule	TT	Yes	No	—	—	—	Unaddressed	—	Revised Total Coliform Rule
Aug 1, 2024	—	Revised Total Coliform Rule	TT	Yes	No	—	—	—	Unaddressed	—	Revised Total Coliform Rule
Aug 1, 2024	—	Revised Total Coliform Rule	TT	Yes	No	—	—	—	Unaddressed	—	Revised Total Coliform Rule
Jul 1, 2024	—	Consumer Confidence Rule	Other	No	No	—	—	—	Unaddressed	—	Consumer Confidence Rule
Jul 1, 2021	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 10, 2021	Consumer Confidence Rule
Jul 1, 2021	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 10, 2021	Consumer Confidence Rule
Sep 1, 2014	Sep 30, 2014	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2014	Total Coliform Rule
Sep 1, 2014	Sep 30, 2014	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2014	Total Coliform Rule
Sep 1, 2014	Sep 30, 2014	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2014	Total Coliform Rule
Sep 1, 2014	Sep 30, 2014	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2014	Total Coliform Rule
Sep 1, 2014	Sep 30, 2014	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2014	Total Coliform Rule
Sep 1, 2014	Sep 30, 2014	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2014	Total Coliform Rule
Jun 1, 2010	Jun 30, 2010	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2010	Total Coliform Rule
Jun 1, 2010	Jun 30, 2010	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2010	Total Coliform Rule
Jun 1, 2010	Jun 30, 2010	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2010	Total Coliform Rule
Jun 1, 2010	Jun 30, 2010	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2010	Total Coliform Rule
Jun 1, 2010	Jun 30, 2010	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2010	Total Coliform Rule
Jul 1, 2001	Jul 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2001	Total Coliform Rule
Jul 1, 2001	Jul 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2001	Total Coliform Rule
Jul 1, 2001	Jul 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2001	Total Coliform Rule
Jul 1, 2001	Jul 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2001	Total Coliform Rule
Jul 1, 2001	Jul 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2001	Total Coliform Rule
Jul 1, 2001	Jul 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2001	Total Coliform Rule
Jul 1, 2001	Jul 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2001	Total Coliform Rule
Jul 1, 2001	Jul 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2001	Total Coliform Rule
Dec 1, 1999	Dec 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 1999	Total Coliform Rule
Dec 1, 1999	Dec 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 1999	Total Coliform Rule
Dec 1, 1999	Dec 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 1999	Total Coliform Rule
Jan 1, 1999	Dec 31, 1999	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule
Jan 1, 1999	Dec 31, 1999	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 1999	Nitrate Rule

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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