Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	TX2270060
PWS Name	OAK SHORES WATER SYSTEM
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	696
County Served	Travis

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
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90064283	Open	09-NOV-2025	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90064282	Open	09-NOV-2025	-	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	90064281	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	90064280	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90064268	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90064263	Returned to Compliance	01-APR-2016	30-JUN-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90064260	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90064254	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90064258	Returned to Compliance	01-OCT-2015	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	90064252	Returned to Compliance	01-OCT-2015	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90064250	Returned to Compliance	05-JUN-2015	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90064246	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	90064249	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90064241	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	90064240	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90064229	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90064202	Returned to Compliance	26-JUL-2013	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	90064204	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	90064205	Returned to Compliance	01-APR-2013	30-JUN-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	90064201	Returned to Compliance	01-JAN-2013	31-MAR-2013	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	611	Returned to Compliance	01-APR-2009	30-APR-2009	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90064196	Returned to Compliance	01-APR-2009	30-JUN-2009	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	90064206	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90064197	Returned to Compliance	25-JUL-2008	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	608	Returned to Compliance	01-NOV-2007	30-NOV-2007	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	90064215	Returned to Compliance	01-JAN-2007	31-DEC-2009	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	90064210	Returned to Compliance	01-JAN-2007	31-DEC-2009	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	90064209	Returned to Compliance	01-JAN-2007	31-DEC-2009	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	90064208	Returned to Compliance	01-JAN-2007	31-DEC-2009	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	90064219	Returned to Compliance	01-JAN-2007	31-DEC-2009	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	90064221	Returned to Compliance	01-JAN-2007	31-DEC-2009	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	90064211	Returned to Compliance	01-JAN-2007	31-DEC-2009	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	90064217	Returned to Compliance	01-JAN-2007	31-DEC-2009	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	90064218	Returned to Compliance	01-JAN-2007	31-DEC-2009	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	105	Returned to Compliance	01-FEB-2005	28-FEB-2005	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	205	Returned to Compliance	01-JAN-2005	31-JAN-2005	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	504	Returned to Compliance	01-JUL-2004	-	No
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Fluoride	50004560	Returned to Compliance	01-JAN-2004	31-DEC-2004	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	403	Returned to Compliance	01-JUL-2003	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	302	Returned to Compliance	01-JUL-2002	-	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	191	Known	01-SEP-1991	30-SEP-1991	No
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Fluoride	113086	Known	15-MAR-1985	14-MAR-1986	Yes
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Fluoride	434785	Known	08-DEC-1983	07-DEC-1984	Yes

1 - 43 of 43

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
90107171	90064282	SIA	State Violation/Reminder Notice	04-DEC-2025	State	-
90107172	90064283	SIA	State Violation/Reminder Notice	04-DEC-2025	State	-
90107167	90064280	SIE	State Public Notification requested	07-NOV-2024	State	-
90107169	90064281	SIE	State Public Notification requested	07-NOV-2024	State	-
90107165	90064268	SOX	State Compliance achieved	10-DEC-2019	State	01/27/2020; VIOLATIONS SOX'D BASED ON 04Q2019 TTHM DBP2-01
90107156	90064252	SOX	State Compliance achieved	28-SEP-2016	State	-
90107157	90064260	SOX	State Compliance achieved	07-SEP-2016	State	09/29/16; PER 3Q2016 TTHM LRAA SOX'D PREVIOUS VIOLATIONS
90107157	90064263	SOX	State Compliance achieved	07-SEP-2016	State	09/29/16; PER 3Q2016 TTHM LRAA SOX'D PREVIOUS VIOLATIONS
90107157	90064254	SOX	State Compliance achieved	07-SEP-2016	State	09/29/16; PER 3Q2016 TTHM LRAA SOX'D PREVIOUS VIOLATIONS
90107152	90064258	SOX	State Compliance achieved	12-MAY-2016	State	-
90107137	50004560	SOX	State Compliance achieved	24-JUL-2015	State	20150724; JLAMANNA; VIOLATIONS SOX DUE TO 4Q OF COMPLIANCE. 2015 RTC CLEANUP EFFORT PER MANAGEMENT.
90107134	90064250	SIA	State Violation/Reminder Notice	24-JUN-2015	State	-
90107132	90064249	SIF	State Public Notification received	15-JUN-2015	State	-
90107131	90064246	SIF	State Public Notification received	27-MAR-2015	State	-
90107135	90064241	SOX	State Compliance achieved	11-MAR-2015	State	07/06/15; CAN SOX VIOLATIONS BASED ON 1Q 2015 TTHM AVERAGE
90107135	90064229	SOX	State Compliance achieved	11-MAR-2015	State	07/06/15; CAN SOX VIOLATIONS BASED ON 1Q 2015 TTHM AVERAGE
90107135	90064205	SOX	State Compliance achieved	11-MAR-2015	State	07/06/15; CAN SOX VIOLATIONS BASED ON 1Q 2015 TTHM AVERAGE
90107135	90064204	SOX	State Compliance achieved	11-MAR-2015	State	07/06/15; CAN SOX VIOLATIONS BASED ON 1Q 2015 TTHM AVERAGE
90107135	90064201	SOX	State Compliance achieved	11-MAR-2015	State	07/06/15; CAN SOX VIOLATIONS BASED ON 1Q 2015 TTHM AVERAGE
90107136	90064240	SOX	State Compliance achieved	19-NOV-2014	State	07/06/15; SOX VIOLATIONS BASED ON DBP2-01 4Q 2014 HAA5 AVERAGE
90107100	90064202	SFO	State Administrative/Compliance Order with penalty issued	18-JUL-2014	State	DOCKET NO 2014-0277-PWS-E
90107080	90064210	SOX	State Compliance achieved	31-JUL-2012	State	-
90107085	90064211	SOX	State Compliance achieved	31-JUL-2012	State	-
90107081	90064215	SOX	State Compliance achieved	31-JUL-2012	State	-
90107082	90064217	SOX	State Compliance achieved	31-JUL-2012	State	-
90107090	90064218	SOX	State Compliance achieved	31-JUL-2012	State	-
90107087	90064219	SOX	State Compliance achieved	31-JUL-2012	State	-
90107088	90064221	SOX	State Compliance achieved	31-JUL-2012	State	-
90107083	90064209	SOX	State Compliance achieved	31-JUL-2012	State	-
90107091	90064208	SOX	State Compliance achieved	31-JUL-2012	State	-
90107084	90064206	SOX	State Compliance achieved	26-JUL-2012	State	-
90107070	90064196	SIE	State Public Notification requested	01-OCT-2009	State	-
1508	611	SIF	State Public Notification received	14-JUL-2009	State	-
1408	608	SIE	State Public Notification requested	25-APR-2008	State	-
1509	90064197	SOX	State Compliance achieved	30-NOV-2007	State	AUTOMATIC RETURN TO COMPLIANCE 05/25/2010
1505	403	SOX	State Compliance achieved	14-JUN-2005	State	2001,2002,2003 R2 BY SUBMIT OF 2004CCR RECEIVED 6/14/05
1505	504	SOX	State Compliance achieved	14-JUN-2005	State	2001,2002,2003 R2 BY SUBMIT OF 2004CCR RECEIVED 6/14/05
1505	302	SOX	State Compliance achieved	14-JUN-2005	State	2001,2002,2003 R2 BY SUBMIT OF 2004CCR RECEIVED 6/14/05
705	105	SIF	State Public Notification received	01-APR-2005	State	PUBLIC NOTICE IS CONFIRMED TO HAVE OCCURED WITHIN REQUIRED PERIOD. STATUS DATE IS DEFAULTED, BUT PAPER CERTIFICATION RECORD IS ON FILE WITH TCEQ.
805	205	SIF	State Public Notification received	04-MAR-2005	State	PUBLIC NOTICE IS CONFIRMED TO HAVE OCCURED WITHIN REQUIRED PERIOD. STATUS DATE IS DEFAULTED, BUT PAPER CERTIFICATION RECORD IS ON FILE WITH TCEQ.
191	191	SFJ	State Formal Notice of Violation issued	20-OCT-1991	State	-

1 - 41 of 41

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTAKE 1 - LAKE AUSTIN	107991	Yes	Intake	Surface water	Permanent	Active
1 - PEARCE RD / PLUGGED	28996	Yes	Well	Ground water	Permanent	Inactive
1 - 7624 OAK SHORES DR	63988	Yes	Well	Ground water	Permanent	Active
2 - GREENSHORES / TURNBUOY DR	29004	Yes	Well	Ground water	Permanent	Active
3 - PEARCE RD / ENCINO VERDE	28969	Yes	Well	Ground water	Permanent	Active
3 - 7624 OAK SHORES DR	28991	Yes	Well	Ground water	Other	Inactive
RAW-TAP	117739	No	Common Headers	-	-	Active
DISTRIBUTION SYSTEM	45662	No	Distribution System/Zone	-	-	Active
7624 OAK SHORES DR - 270 GPM - SP	69133	No	Pump Facility	-	-	Active
7624 OAK SHORES DR - 270 GPM - SP	69134	No	Pump Facility	-	-	Active
7624 OAK SHORES DR - 270 GPM - SP	69135	No	Pump Facility	-	-	Active
HOLLY OAK CIR / OAK SHORES DR; AUSTIN	140304	No	Sampling Station	-	-	Active
HOLLY OAK CIR / OAK SHORES DR, AUSTIN	58728	No	Sampling Station	-	-	Active
EP002	58763	No	Sampling Station	-	-	Inactive
EP003	64299	No	Sampling Station	-	-	Inactive
7624 OAK SHORES DR - 0.0075 MG - HD	86258	No	Storage	-	-	Active
7624 OAK SHORES DR - 0.350 MG - GR	86259	No	Storage	-	-	Active
GREENSHORES SWTP - MF MEMBRANE	106113	No	Treatment Plant	-	-	Active
GREENSHORES SWTP - MF MEMBRANE	106241	No	Treatment Plant	-	-	Active
PLANT - WELL 3	10911	No	Treatment Plant	-	-	Active
PLANT - WELL 1	63515	No	Treatment Plant	-	-	Inactive
PLANT - WELL 2	7075	No	Treatment Plant	-	-	Inactive

1 - 22 of 22

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
GREENSHORES SWTP - MF MEMBRANE	106241	Innovative	Disinfection
GREENSHORES SWTP - MF MEMBRANE	106241	Gaseous Chlorination, Pre	Disinfection
GREENSHORES SWTP - MF MEMBRANE	106241	Innovative	Particulate removal
GREENSHORES SWTP - MF MEMBRANE	106241	Innovative	Particulate removal
GREENSHORES SWTP - MF MEMBRANE	106241	Innovative	Particulate removal
GREENSHORES SWTP - MF MEMBRANE	106241	Gaseous Chlorination, Post	Disinfection
GREENSHORES SWTP - MF MEMBRANE	106241	Innovative	Disinfection
GREENSHORES SWTP - MF MEMBRANE	106241	Gaseous Chlorination, Post	Disinfection
GREENSHORES SWTP - MF MEMBRANE	106241	Innovative	Disinfection
GREENSHORES SWTP - MF MEMBRANE	106241	Innovative	Disinfection
GREENSHORES SWTP - MF MEMBRANE	106241	Innovative	Disinfection
PLANT - WELL 3	10911	Hypochlorination, Pre	Disinfection
PLANT - WELL 2	7075	Hypochlorination, Pre	Disinfection

1 - 13 of 13

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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