Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	TX1500015
PWS Name	CITY OF HORSESHOE BAY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	12729
County Served	Llano

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
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1473	Returned to Compliance	01-OCT-2024	31-OCT-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1472	Returned to Compliance	16-JUL-2024	-	No
TT	Treatment Technique (SWTR and GWR)	Long Term 2 Enhanced Surface Water Treatment Rule	Long Term 2 Enhanced Surface Water Treatment Rule	1471	Returned to Compliance	01-JUN-2024	30-JUN-2024	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1465	Returned to Compliance	01-NOV-2021	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1464	Returned to Compliance	29-OCT-2021	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1460	Returned to Compliance	01-JUL-2021	30-SEP-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1459	Returned to Compliance	01-JUL-2021	30-SEP-2021	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	1454	Returned to Compliance	01-OCT-2020	31-OCT-2020	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1451	Returned to Compliance	23-SEP-2019	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1445	Returned to Compliance	01-APR-2019	30-JUN-2019	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1441	Returned to Compliance	10-MAR-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1442	Returned to Compliance	10-MAR-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1443	Returned to Compliance	10-MAR-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1440	Returned to Compliance	15-FEB-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1439	Returned to Compliance	09-FEB-2019	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1434	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1436	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1433	Returned to Compliance	01-OCT-2018	31-DEC-2018	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1421	Returned to Compliance	01-JAN-2018	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1424	Returned to Compliance	01-JUL-2017	31-DEC-2017	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1422	Returned to Compliance	01-JUL-2017	31-DEC-2017	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1423	Returned to Compliance	01-JUL-2017	31-DEC-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	1428	Returned to Compliance	01-APR-2017	30-JUN-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	1426	Returned to Compliance	01-APR-2017	30-JUN-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	1427	Returned to Compliance	01-APR-2017	30-JUN-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	1429	Returned to Compliance	01-APR-2017	30-JUN-2017	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	1425	Returned to Compliance	01-APR-2017	30-JUN-2017	No
TT	Treatment Technique, Level 2 Assessment (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	1446	Returned to Compliance	25-DEC-2016	-	Yes
MCL	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	1419	Returned to Compliance	01-SEP-2016	30-SEP-2016	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1418	Returned to Compliance	30-DEC-2015	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	1417	Returned to Compliance	01-JUL-2015	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1414	Returned to Compliance	01-JUL-2014	31-JUL-2014	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1412	Returned to Compliance	01-MAY-2012	31-MAY-2012	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1408	Returned to Compliance	01-OCT-2007	31-OCT-2007	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1308	Returned to Compliance	01-SEP-2007	30-SEP-2007	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1208	Returned to Compliance	01-SEP-2007	30-SEP-2007	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1007	Returned to Compliance	01-AUG-2007	31-AUG-2007	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	905	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	705	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	805	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	305	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	105	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	605	Returned to Compliance	01-JUL-2004	30-SEP-2004	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	503	Returned to Compliance	01-MAY-2003	31-MAY-2003	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	403	Returned to Compliance	01-NOV-2002	30-NOV-2002	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	9999193	Returned to Compliance	01-JUL-1992	30-JUN-1993	No
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Fluoride	417885	Known	19-JUL-1979	18-JUL-1980	Yes
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Fluoride	1238882	Known	19-JUL-1979	18-AUG-1979	Yes

1 - 48 of 48

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3228	1473	SIF	State Public Notification received	24-JUN-2025	State	-
3230	1408	SIF	State Public Notification received	23-JUN-2025	State	-
3231	1308	SIF	State Public Notification received	23-JUN-2025	State	-
3231	1208	SIF	State Public Notification received	23-JUN-2025	State	-
3219	1472	SIA	State Violation/Reminder Notice	29-AUG-2024	State	-
3222	1471	SIF	State Public Notification received	26-AUG-2024	State	-
3216	1460	SOX	State Compliance achieved	16-DEC-2021	State	VIOLS SOX'D BASED ON TTHM DBP2-03 AND -04 4Q2021 LRAAS
3216	1459	SOX	State Compliance achieved	16-DEC-2021	State	VIOLS SOX'D BASED ON TTHM DBP2-03 AND -04 4Q2021 LRAAS
3213	1465	SOX	State Compliance achieved	01-DEC-2021	State	-
3214	1454	SIF	State Public Notification received	01-DEC-2021	State	-
3215	1464	SOX	State Compliance achieved	15-NOV-2021	State	-
3200	1441	SOX	State Compliance achieved	18-AUG-2020	State	-
3198	1442	SOX	State Compliance achieved	18-AUG-2020	State	-
3201	1424	SIF	State Public Notification received	18-AUG-2020	State	-
3199	1422	SIF	State Public Notification received	18-AUG-2020	State	-
3197	1423	SIF	State Public Notification received	18-AUG-2020	State	-
3196	1443	SOX	State Compliance achieved	18-AUG-2020	State	-
3191	1433	SFO	State Administrative/Compliance Order with penalty issued	03-DEC-2019	State	DOCKET NO 2019-0393-PWS-E; FILE CLOSED 4/13/2020.
3191	1434	SFO	State Administrative/Compliance Order with penalty issued	03-DEC-2019	State	DOCKET NO 2019-0393-PWS-E; FILE CLOSED 4/13/2020.
3191	1436	SFO	State Administrative/Compliance Order with penalty issued	03-DEC-2019	State	DOCKET NO 2019-0393-PWS-E; FILE CLOSED 4/13/2020.
3191	1440	SFO	State Administrative/Compliance Order with penalty issued	03-DEC-2019	State	DOCKET NO 2019-0393-PWS-E; FILE CLOSED 4/13/2020.
3191	1439	SFO	State Administrative/Compliance Order with penalty issued	03-DEC-2019	State	DOCKET NO 2019-0393-PWS-E; FILE CLOSED 4/13/2020.
3191	1445	SFO	State Administrative/Compliance Order with penalty issued	03-DEC-2019	State	DOCKET NO 2019-0393-PWS-E; FILE CLOSED 4/13/2020.
3189	1451	SOX	State Compliance achieved	04-NOV-2019	State	-
3190	1446	SIF	State Public Notification received	04-NOV-2019	State	-
3182	1421	SIF	State Public Notification received	12-AUG-2019	State	-
3158	1429	SOX	State Compliance achieved	11-OCT-2018	State	20181011;ITOWER;PER QC QUERY, SAMPLE HAS BEEN RECEIVED AND VIOLATION CAN BE RETURNED TO COMPLIANCE
3158	1428	SOX	State Compliance achieved	11-OCT-2018	State	20181011;ITOWER;PER QC QUERY, SAMPLE HAS BEEN RECEIVED AND VIOLATION CAN BE RETURNED TO COMPLIANCE
3158	1427	SOX	State Compliance achieved	11-OCT-2018	State	20181011;ITOWER;PER QC QUERY, SAMPLE HAS BEEN RECEIVED AND VIOLATION CAN BE RETURNED TO COMPLIANCE
3158	1426	SOX	State Compliance achieved	11-OCT-2018	State	20181011;ITOWER;PER QC QUERY, SAMPLE HAS BEEN RECEIVED AND VIOLATION CAN BE RETURNED TO COMPLIANCE
3158	1425	SOX	State Compliance achieved	11-OCT-2018	State	20181011;ITOWER;PER QC QUERY, SAMPLE HAS BEEN RECEIVED AND VIOLATION CAN BE RETURNED TO COMPLIANCE
3132	1419	SOX	State Compliance achieved	08-MAY-2017	State	NLARISON; 05082017; System continued to collect the required number of compliance samples over the following months, returning the violation to compliance.
3127	1418	SOX	State Compliance achieved	08-FEB-2016	State	-
3122	1417	SIA	State Violation/Reminder Notice	06-OCT-2015	State	-
3121	1414	SOX	State Compliance achieved	07-APR-2015	State	-
3111	1412	SIF	State Public Notification received	10-JUL-2012	State	-
3113	1007	SOX	State Compliance achieved	01-DEC-2007	State	-
3114	503	SOX	State Compliance achieved	09-NOV-2006	State	-
3115	403	SOX	State Compliance achieved	08-NOV-2006	State	-
2206	105	SOX	State Compliance achieved	22-FEB-2006	State	-
2306	605	SOX	State Compliance achieved	22-FEB-2006	State	-
2506	905	SOX	State Compliance achieved	22-FEB-2006	State	-
2406	805	SOX	State Compliance achieved	22-FEB-2006	State	-
1506	305	SFO	State Administrative/Compliance Order with penalty issued	30-DEC-2005	State	399322832005194
1506	705	SFO	State Administrative/Compliance Order with penalty issued	30-DEC-2005	State	399322832005194
193	9999193	SOX	State Compliance achieved	30-JUN-1993	State	-

1 - 46 of 46

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTAKE 1 - LAKE LBJ	33710	Yes	Intake	Surface water	Permanent	Active
INTAKE 2	33733	Yes	Intake	Surface water	Permanent	Active
RAW-TAP	117617	No	Common Headers	-	-	Active
RAW-TAP	117618	No	Common Headers	-	-	Active
CENTRAL WTP - 0.33 MG - CW	147184	No	Clear Well	-	-	Active
WEST WTP - 0.500 MG - CW	147185	No	Clear Well	-	-	Active
DISTRIBUTION SYSTEM	37337	No	Distribution System/Zone	-	-	Active
CENTRAL WTP - 900 GPM - SP	77215	No	Pump Facility	-	-	Active
CENTRAL WTP - 2080 GPM - SP	77216	No	Pump Facility	-	-	Active
CENTRAL WTP - 2776 GPM - SP	77217	No	Pump Facility	-	-	Active
WEST WTP - 1500 GPM - SP	77218	No	Pump Facility	-	-	Active
WEST WTP - 1500 GPM - SP	77219	No	Pump Facility	-	-	Active
HSPS (BOOSTER PUMP) - 1000 GPM - SP	77220	No	Pump Facility	-	-	Active
HSPS (BOOSTER PUMP) - 1500 GPM - SP	77221	No	Pump Facility	-	-	Active
HSPS (BOOSTER PUMP) - 2500 GPM - SP	77222	No	Pump Facility	-	-	Active
CENTRAL WTP - 6201 FM 2147	138135	No	Sampling Station	-	-	Active
711 MATERN DR; HORSESHOE BAY	138136	No	Sampling Station	-	-	Active
CENTRAL WTP - 6201 FM 2147	55524	No	Sampling Station	-	-	Active
711 MATERN DR, HORSESHOE BAY	61589	No	Sampling Station	-	-	Active
HSPS (PMHPP) - OUT- 0.014 MG - HD	122056	No	Storage	-	-	Active
SUMMITT ROCK EST - 0.75 MG - EL	122057	No	Storage	-	-	Active
CENTRAL WTP - 0.33 MG - CW	122058	No	Storage	-	-	Active
D2 TANK FOR WEST WTP - 0.028 MG - CW	122059	No	Storage	-	-	Active
CENTRAL WTP - 0.33 MG - CW	122060	No	Storage	-	-	Active
WEST WTP - 0.500 MG - CW	122061	No	Storage	-	-	Active
HSPS (ELEVATED FOR LOW PP) -1.300 MG- EL	94970	No	Storage	-	-	Active
HSPS (ELEVATED FOR LOW PP) -0.750 MG- EL	94971	No	Storage	-	-	Active
HORSESHOE BAY WEST - 1.0 MG - EL	94972	No	Storage	-	-	Active
SWTP - WEST	11424	No	Treatment Plant	-	-	Active
SWTP - CENTRAL	1736	No	Treatment Plant	-	-	Active

1 - 30 of 30

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
SWTP - WEST	11424	Innovative	Disinfection
SWTP - WEST	11424	Gaseous Chlorination, Pre	Disinfection
SWTP - WEST	11424	Innovative	Particulate removal
SWTP - WEST	11424	Gaseous Chlorination, Pre	Disinfection
SWTP - WEST	11424	Innovative	Disinfection
SWTP - WEST	11424	Innovative	Particulate removal
SWTP - WEST	11424	Innovative	Disinfection
SWTP - WEST	11424	Innovative	Particulate removal
SWTP - WEST	11424	Innovative	Disinfection
SWTP - WEST	11424	Innovative	Disinfection
SWTP - WEST	11424	Innovative	Disinfection
SWTP - WEST	11424	Innovative	Disinfection
SWTP - WEST	11424	Innovative	Disinfection
SWTP - WEST	11424	Gaseous Chlorination, Post	Disinfection
SWTP - CENTRAL	1736	Innovative	Disinfection
SWTP - CENTRAL	1736	Gaseous Chlorination, Pre	Disinfection
SWTP - CENTRAL	1736	Innovative	Disinfection
SWTP - CENTRAL	1736	Innovative	Disinfection
SWTP - CENTRAL	1736	Innovative	Particulate removal
SWTP - CENTRAL	1736	Innovative	Disinfection
SWTP - CENTRAL	1736	Innovative	Particulate removal
SWTP - CENTRAL	1736	Innovative	Disinfection
SWTP - CENTRAL	1736	Gaseous Chlorination, Post	Disinfection
SWTP - CENTRAL	1736	Innovative	Disinfection
SWTP - CENTRAL	1736	Innovative	Disinfection
SWTP - CENTRAL	1736	Innovative	Disinfection

1 - 26 of 26

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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