Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	TX2140006
PWS Name	CITY OF LA GRULLA
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	9500
County Served	Starr

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	575	Open	20-OCT-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	574	Known	01-OCT-2025	31-DEC-2025	Yes
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	572	Open	23-SEP-2025	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	567	Open	24-AUG-2025	-	No
TT	Treatment Technique, Level 2 Assessment (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	566	Open	16-AUG-2025	-	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	580	Known	01-JUL-2025	30-SEP-2025	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	563	Open	01-JUL-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	581	Known	01-JUL-2025	30-SEP-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	578	Open	01-JUL-2025	-	No
TT	Treatment Technique, Corrective/Expedited Actions (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	559	Open	30-MAY-2025	-	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	560	Open	01-MAY-2025	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	558	Open	18-APR-2025	-	No
TT	Treatment Technique, Corrective/Expedited Actions (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	554	Open	01-MAR-2025	-	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	555	Open	01-JAN-2025	-	No
TT	Treatment Technique, Corrective/Expedited Actions (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	553	Open	21-DEC-2024	-	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	552	Open	18-OCT-2024	-	No
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	557	Open	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	556	Open	17-OCT-2024	-	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	550	Open	29-SEP-2024	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	547	Open	02-JUL-2024	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	545	Returned to Compliance	01-JUL-2024	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	546	Open	01-JUL-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	543	Returned to Compliance	01-MAY-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	541	Returned to Compliance	31-MAR-2024	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	540	Open	31-MAR-2024	-	No
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	542	Returned to Compliance	01-MAR-2024	31-MAR-2024	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	539	Returned to Compliance	01-FEB-2024	29-FEB-2024	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	538	Returned to Compliance	01-JAN-2024	31-JAN-2024	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	536	Returned to Compliance	01-DEC-2023	31-DEC-2023	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	533	Returned to Compliance	01-AUG-2023	31-AUG-2023	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	528	Returned to Compliance	16-JUL-2023	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	530	Returned to Compliance	01-JUL-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	522	Returned to Compliance	01-FEB-2023	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	520	Returned to Compliance	01-OCT-2022	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	521	Returned to Compliance	01-JUL-2022	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	519	Returned to Compliance	01-MAY-2022	31-MAY-2022	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	516	Returned to Compliance	31-MAR-2022	-	No
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	515	Returned to Compliance	01-FEB-2022	28-FEB-2022	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	514	Returned to Compliance	01-JAN-2022	31-JAN-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	508	Returned to Compliance	01-SEP-2021	30-SEP-2021	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	510	Returned to Compliance	01-SEP-2021	30-SEP-2021	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	506	Returned to Compliance	19-AUG-2021	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	512	Returned to Compliance	01-JUL-2021	30-SEP-2021	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	507	Returned to Compliance	01-JUL-2021	-	No
TT	Treatment Technique, Level 1 Assessment (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	503	Returned to Compliance	19-JUN-2021	-	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	505	Returned to Compliance	01-JUN-2021	30-JUN-2021	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	501	Returned to Compliance	01-JUL-2020	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	500	Returned to Compliance	30-DEC-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	494	Returned to Compliance	21-APR-2014	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	499	Returned to Compliance	01-FEB-2014	-	No

1 - 50 of 117

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
637	578	SIA	State Violation/Reminder Notice	18-DEC-2025	State	-
636	550	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	552	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	553	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	554	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	555	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	556	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	557	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	558	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	559	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	560	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	563	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	566	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	567	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	572	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	540	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
636	546	SFJ	State Formal Notice of Violation issued	12-DEC-2025	State	-
635	575	SIA	State Violation/Reminder Notice	02-DEC-2025	State	-
621	545	SOX	State Compliance achieved	10-JUN-2025	State	6M2 SAMPLING COMPLETED - GM 06/13/2025
602	500	SOX	State Compliance achieved	06-SEP-2024	State	ADEQUATE 2019 LCN RECEIVED 9/6/2024;JMP
604	547	SIA	State Violation/Reminder Notice	05-SEP-2024	State	-
595	543	SIA	State Violation/Reminder Notice	31-MAY-2024	State	-
592	542	SIA	State Violation/Reminder Notice	09-MAY-2024	State	-
591	541	SIA	State Violation/Reminder Notice	03-MAY-2024	State	-
594	536	SOX	State Compliance achieved	01-MAY-2024	State	PWS RETURNED TO COMPLIANCE FOR THIS VIOLATION TYPE BASED ON SUBMISSION OF APRIL 2024 SWMOR
594	539	SOX	State Compliance achieved	01-MAY-2024	State	PWS RETURNED TO COMPLIANCE FOR THIS VIOLATION TYPE BASED ON SUBMISSION OF APRIL 2024 SWMOR
594	538	SOX	State Compliance achieved	01-MAY-2024	State	PWS RETURNED TO COMPLIANCE FOR THIS VIOLATION TYPE BASED ON SUBMISSION OF APRIL 2024 SWMOR
574	520	SOX	State Compliance achieved	13-DEC-2023	State	6M2 2023 SAMPLING COMPLETE- BL 01/08/2024
574	530	SOX	State Compliance achieved	13-DEC-2023	State	6M2 2023 SAMPLING COMPLETE- BL 01/08/2024
568	533	SIE	State Public Notification requested	17-OCT-2023	State	-
566	514	SIF	State Public Notification received	11-OCT-2023	State	-
561	519	SIF	State Public Notification received	11-OCT-2023	State	-
560	528	SOX	State Compliance achieved	11-OCT-2023	State	-
565	522	SOX	State Compliance achieved	11-OCT-2023	State	-
552	521	SOX	State Compliance achieved	20-MAR-2023	State	-
538	516	SOX	State Compliance achieved	14-MAY-2022	State	-
539	515	SIF	State Public Notification received	11-MAY-2022	State	-
529	512	SOX	State Compliance achieved	01-JAN-2022	State	02/25/2022. DELKINS. 4TH QUARTER TOCMORS SUBMITTED ON TIME.
525	510	SIF	State Public Notification received	15-DEC-2021	State	-
522	501	SOX	State Compliance achieved	19-NOV-2021	State	-
521	507	SOX	State Compliance achieved	19-NOV-2021	State	-
520	503	SOX	State Compliance achieved	18-NOV-2021	State	11/18/2021; JHernandez; SOXd violation because PWS submitted adequate assessment 11/14/2021.
518	506	SOX	State Compliance achieved	16-NOV-2021	State	-
513	412	SIF	State Public Notification received	14-NOV-2021	State	-
511	417	SOX	State Compliance achieved	14-NOV-2021	State	-
506	508	SIF	State Public Notification received	14-NOV-2021	State	-
507	505	SIF	State Public Notification received	14-NOV-2021	State	-
509	416	SIF	State Public Notification received	14-NOV-2021	State	-
510	415	SIF	State Public Notification received	14-NOV-2021	State	-
512	408	SIF	State Public Notification received	14-NOV-2021	State	-

1 - 50 of 114

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTAKE 1 - RIO GRANDE RIVER	33841	Yes	Intake	Surface water	Permanent	Active
INTAKE 2 - PLANT RESERVOIR	33872	Yes	Intake	Surface water	Permanent	Active
RAW-TAP	117697	No	Common Headers	-	-	Active
DISTRIBUTION SYSTEM	45321	No	Distribution System/Zone	-	-	Active
PLANT SITE - 600 GPM - SP	72416	No	Pump Facility	-	-	Active
PLANT SITE - 750 GPM - SP	72418	No	Pump Facility	-	-	Active
LA VICTORIA BS - 850 GPM - SP	72419	No	Pump Facility	-	-	Active
LA VICTORIA BS - 850 GPM - SP	72420	No	Pump Facility	-	-	Active
PLANT SITE - 613 GPM - SP	72415	No	Pump Facility	-	-	Inactive
PLANT SITE - 850 GPM - SP	72417	No	Pump Facility	-	-	Inactive
LA GRULLA WTP - 223 LAS ALEGRIAS RD	139981	No	Sampling Station	-	-	Active
LA GRULLA WTP - 223 LAS ALEGRIAS RD	58232	No	Sampling Station	-	-	Active
HWY 83 5 MI N FM 2360 - 0.390 MG - ST	123239	No	Storage	-	-	Active
PLANT SITE - 0.237 MG - ST	123240	No	Storage	-	-	Active
PLANT SITE - 0.115 MG - GR	155849	No	Storage	-	-	Active
HWY 83 0.25 MI S FM 2360 - 0.300 MG - EL	89455	No	Storage	-	-	Active
HWY 83 5 MI N FM 2360 - 0.005 MG - HD	89456	No	Storage	-	-	Active
PLANT SITE - 0.125 MG - GR	123242	No	Storage	-	-	Inactive
PLANT SITE - 0.368 MG - ST	147064	No	Storage	-	-	Inactive
PLANT - HWY 83 5 MI N FM 2360	166787	No	Treatment Plant	-	-	Active
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	No	Treatment Plant	-	-	Active

1 - 21 of 21

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PLANT - HWY 83 5 MI N FM 2360	166787	Gaseous Chlorination, Pre	Disinfection
PLANT - HWY 83 5 MI N FM 2360	166787	Chloramines	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Coagulation	Particulate removal
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Gaseous Chlorination, Pre	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Particulate removal
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Gaseous Chlorination, Pre	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Filtration, Rapid Sand	Particulate removal
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Gaseous Chlorination, Post	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Disinfection
PLANT - SWTP - 223 LAS ALEGRIAS RD	7905	Innovative	Disinfection

1 - 18 of 18

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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