Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA3700923
PWS Name	LAKE MORENA'S OAK SHORES MWC
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	670
County Served	San Diego

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	9900030	Open	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	9900029	Open	17-OCT-2024	-	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9900027	Returned to Compliance	01-JAN-2024	31-JAN-2024	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9900020	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	9900024	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	9900023	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9900019	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	9900022	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9900018	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9900017	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	9900021	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	9900016	Returned to Compliance	01-JAN-2014	31-MAR-2014	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9900015	Returned to Compliance	01-JAN-2014	31-MAR-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	9900014	Returned to Compliance	01-OCT-2013	31-DEC-2013	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9900013	Returned to Compliance	01-OCT-2013	31-DEC-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	9900012	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9900011	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	9900010	Returned to Compliance	01-APR-2013	30-JUN-2013	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9900009	Returned to Compliance	01-APR-2013	30-JUN-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	9900008	Returned to Compliance	01-JAN-2013	31-MAR-2013	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9900006	Returned to Compliance	01-JAN-2013	31-MAR-2013	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9900005	Returned to Compliance	01-OCT-2012	31-DEC-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	9900007	Returned to Compliance	01-OCT-2012	31-DEC-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	1214869	Returned to Compliance	01-JUL-2012	30-SEP-2012	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	1214863	Returned to Compliance	01-JUL-2012	30-SEP-2012	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	1214862	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	1214868	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	1214861	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	1214867	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	1114852	Returned to Compliance	01-OCT-2011	31-DEC-2011	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	1214851	Returned to Compliance	01-OCT-2011	31-DEC-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	1114866	Returned to Compliance	01-JUL-2011	30-SEP-2011	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	1114850	Returned to Compliance	01-JUL-2011	30-SEP-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	1114865	Returned to Compliance	01-APR-2011	30-JUN-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	1114864	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	1114849	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	914843	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	1114848	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	1014847	Returned to Compliance	01-JUL-2010	30-SEP-2010	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	1014846	Returned to Compliance	01-APR-2010	30-JUN-2010	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	1014845	Returned to Compliance	01-JAN-2010	31-MAR-2010	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate-Nitrite	1014842	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate-Nitrite	914841	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate-Nitrite	914828	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	914840	Returned to Compliance	01-JAN-2009	31-MAR-2009	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	914827	Returned to Compliance	01-JAN-2009	31-JAN-2009	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	914839	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	814838	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	814837	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	814860	Returned to Compliance	01-APR-2008	30-APR-2008	No

1 - 50 of 89

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9900030	9900027	SOX	State Compliance achieved	21-MAY-2024	State	-
9900006	614821	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	614829	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	614830	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	614831	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	714822	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	714824	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	714825	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	714826	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	714832	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	714833	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	714834	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	814835	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	814836	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	814837	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	814838	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	914839	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	914840	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	914841	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1014842	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1014845	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1014846	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1014847	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1114848	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1114849	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1114850	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1214851	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1214861	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1214862	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	1214863	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	9900005	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	9900006	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	9900009	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	9900011	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	9900013	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	9900015	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	9900017	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	9900018	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	9900019	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900006	9900020	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015.
9900007	914843	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015. This allows the WS to successfully blend for Uranium
9900007	1114852	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015. This allows the WS to successfully blend for Uranium
9900007	1114864	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015. This allows the WS to successfully blend for Uranium
9900007	1114865	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015. This allows the WS to successfully blend for Uranium
9900007	1114866	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015. This allows the WS to successfully blend for Uranium
9900007	1214867	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015. This allows the WS to successfully blend for Uranium
9900007	1214868	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015. This allows the WS to successfully blend for Uranium
9900007	1214869	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015. This allows the WS to successfully blend for Uranium
9900007	9900007	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015. This allows the WS to successfully blend for Uranium
9900007	9900008	SOX	State Compliance achieved	01-JUN-2015	State	WS began using a Nitrate Treatment Facility using Ion Exchange treatment on 03/13/2015. This allows the WS to successfully blend for Uranium

1 - 50 of 82

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 04 - DESTROYED	18292	Yes	Well	Ground water	Other	Inactive
WELL 03	CA3700923003	Yes	Well	Ground water	Permanent	Inactive
WELL 03 - PUMP REMOVED	15366	Yes	Well	Ground water	Permanent	Inactive
WELL 08 - DISCONNECTED	15363	Yes	Well	Ground water	Permanent	Inactive
WELL 02	15372	Yes	Well	Ground water	Permanent	Active
WELL 06	15371	Yes	Well	Ground water	Permanent	Active
WELL 07	15370	Yes	Well	Ground water	Permanent	Active
WELL 05	15369	Yes	Well	Ground water	Permanent	Active
WELL 01	15361	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	30879	No	Distribution System/Zone	-	-	Active
BOOSTER PUMP STATION	64916	No	Pump Facility	-	-	Active
67K GAL STORAGE TANK	65461	No	Storage	-	-	Active
286K GAL STORAGE TANK	3316	No	Treatment Plant	-	-	Active
CHLORINATION	54781	No	Treatment Plant	-	-	Active
NITRATE TREATMENT FACILITY	58991	No	Treatment Plant	-	-	Active

1 - 15 of 15

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
286K GAL STORAGE TANK	3316	Rapid Mix	Radionuclides removal
CHLORINATION	54781	Hypochlorination, Post	Disinfection
NITRATE TREATMENT FACILITY	58991	Ion Exchange	Inorganics removal

1 - 3 of 3

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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