Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	TX1080034
PWS Name	LLANO GRANDE LAKE PARK EAST
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	1300
County Served	Hidalgo

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	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	92	Open	29-SEP-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	93	Open	01-JUL-2025	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	91	Returned to Compliance	01-APR-2025	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	90	Returned to Compliance	29-SEP-2024	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	87	Returned to Compliance	31-MAR-2024	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	83	Returned to Compliance	29-SEP-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	80	Returned to Compliance	17-AUG-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	79	Returned to Compliance	13-AUG-2023	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	82	Returned to Compliance	01-JUL-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	73	Returned to Compliance	11-MAY-2023	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	78	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	72	Returned to Compliance	01-JAN-2023	31-MAR-2023	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	74	Returned to Compliance	01-JAN-2023	30-JUN-2023	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	68	Returned to Compliance	01-JAN-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	64	Returned to Compliance	04-DEC-2022	-	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	62	Open	01-OCT-2022	-	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	59	Returned to Compliance	01-JUL-2022	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	67	Returned to Compliance	01-JUL-2022	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	57	Returned to Compliance	11-JUN-2022	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	56	Returned to Compliance	11-JUN-2022	-	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	53	Open	01-APR-2022	-	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	54	Open	31-MAR-2022	-	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	60	Returned to Compliance	01-JAN-2022	30-JUN-2022	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	52	Returned to Compliance	30-DEC-2021	-	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	55	Open	01-OCT-2021	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	51	Returned to Compliance	01-JUL-2021	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	50	Returned to Compliance	30-DEC-2020	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	49	Returned to Compliance	06-SEP-2020	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	47	Returned to Compliance	01-JUL-2020	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	45	Returned to Compliance	30-MAY-2020	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	44	Returned to Compliance	14-MAY-2020	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	43	Returned to Compliance	14-MAY-2020	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	42	Returned to Compliance	31-MAR-2020	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	40	Returned to Compliance	13-DEC-2019	-	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	39	Returned to Compliance	01-OCT-2019	-	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	38	Returned to Compliance	29-SEP-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	34	Returned to Compliance	13-JUN-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	35	Returned to Compliance	13-JUN-2019	-	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	33	Returned to Compliance	01-APR-2019	-	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	32	Returned to Compliance	31-MAR-2019	-	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	36	Returned to Compliance	01-JAN-2019	30-JUN-2019	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	28	Returned to Compliance	30-DEC-2018	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	26	Returned to Compliance	26-OCT-2018	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	25	Returned to Compliance	25-OCT-2018	-	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	31	Open	01-OCT-2018	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	27	Returned to Compliance	01-JUL-2018	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	29	Returned to Compliance	01-JUN-2018	30-NOV-2018	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	30	Returned to Compliance	01-JUN-2018	30-NOV-2018	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	23	Returned to Compliance	01-OCT-2017	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	24	Returned to Compliance	01-APR-2017	30-JUN-2017	No

1 - 50 of 63

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
203	93	SIA	State Violation/Reminder Notice	31-DEC-2025	State	-
202	92	SIA	State Violation/Reminder Notice	03-NOV-2025	State	-
201	91	SIA	State Violation/Reminder Notice	30-APR-2025	State	-
200	87	SOX	State Compliance achieved	09-APR-2025	State	04/09/2025;ADEQUATE LCN RECEIVED;JMP
200	90	SOX	State Compliance achieved	09-APR-2025	State	04/09/2025;ADEQUATE LCN RECEIVED;JMP
194	72	SOX	State Compliance achieved	01-DEC-2023	State	20231201.MMUNRO. SOX APPLIED. RECEIVED RESULTS.
194	78	SOX	State Compliance achieved	01-DEC-2023	State	20231201.MMUNRO. SOX APPLIED. RECEIVED RESULTS.
193	50	SOX	State Compliance achieved	16-NOV-2023	State	ADEQUATE LCN RCVD - KAC 11/16/2023
193	83	SOX	State Compliance achieved	16-NOV-2023	State	ADEQUATE LCN RCVD - KAC 11/16/2023
192	82	SOX	State Compliance achieved	16-NOV-2023	State	11/16/2023; KRAMIREZ; SYSTEM SUBMITTED AN ADEQUATE 2022 CCR/COD
193	42	SOX	State Compliance achieved	16-NOV-2023	State	ADEQUATE LCN RCVD - KAC 11/16/2023
193	38	SOX	State Compliance achieved	16-NOV-2023	State	ADEQUATE LCN RCVD - KAC 11/16/2023
193	52	SOX	State Compliance achieved	16-NOV-2023	State	ADEQUATE LCN RCVD - KAC 11/16/2023
187	59	SIF	State Public Notification received	13-NOV-2023	State	-
189	55	SIF	State Public Notification received	13-NOV-2023	State	-
173	54	SIF	State Public Notification received	13-NOV-2023	State	-
171	53	SIF	State Public Notification received	13-NOV-2023	State	-
172	56	SOX	State Compliance achieved	13-NOV-2023	State	-
170	57	SOX	State Compliance achieved	13-NOV-2023	State	-
168	64	SOX	State Compliance achieved	13-NOV-2023	State	-
188	73	SOX	State Compliance achieved	13-NOV-2023	State	-
186	79	SOX	State Compliance achieved	13-NOV-2023	State	-
181	80	SOX	State Compliance achieved	13-NOV-2023	State	-
182	60	SIF	State Public Notification received	13-NOV-2023	State	-
180	74	SIF	State Public Notification received	13-NOV-2023	State	-
185	68	SIF	State Public Notification received	13-NOV-2023	State	-
169	62	SIF	State Public Notification received	13-NOV-2023	State	-
143	51	SOX	State Compliance achieved	31-JAN-2023	State	ADEQUATE 2021 CCR RECIEVED - JMP
143	47	SOX	State Compliance achieved	31-JAN-2023	State	ADEQUATE 2021 CCR RECIEVED - JMP
143	67	SOX	State Compliance achieved	31-JAN-2023	State	ADEQUATE 2021 CCR RECIEVED - JMP
106	31	SIF	State Public Notification received	15-SEP-2021	State	-
111	30	SIF	State Public Notification received	15-SEP-2021	State	-
109	29	SIF	State Public Notification received	15-SEP-2021	State	-
101	32	SIF	State Public Notification received	15-SEP-2021	State	-
99	33	SIF	State Public Notification received	15-SEP-2021	State	-
97	39	SIF	State Public Notification received	15-SEP-2021	State	-
103	36	SIF	State Public Notification received	15-SEP-2021	State	-
102	49	SOX	State Compliance achieved	15-SEP-2021	State	-
105	45	SOX	State Compliance achieved	15-SEP-2021	State	-
100	34	SOX	State Compliance achieved	15-SEP-2021	State	-
98	35	SOX	State Compliance achieved	15-SEP-2021	State	-
96	40	SOX	State Compliance achieved	15-SEP-2021	State	-
110	43	SOX	State Compliance achieved	15-SEP-2021	State	-
108	44	SOX	State Compliance achieved	15-SEP-2021	State	-
84	22	SOX	State Compliance achieved	04-MAR-2020	State	RECEIVED LCN LATE, RTC VIO, 03/05/2020 LM
85	28	SOX	State Compliance achieved	04-MAR-2020	State	RECEIVED LCN LATE, RTC VIO, 03/05/2020 LM
80	27	SFO	State Administrative/Compliance Order with penalty issued	14-JAN-2020	State	TCEQ DOCKET NO. 2019-0792-PWS-E. FILE CLOSED 02/26/2021
46	26	SOX	State Compliance achieved	05-MAR-2019	State	-
48	25	SOX	State Compliance achieved	05-MAR-2019	State	-
52	12	SOX	State Compliance achieved	05-MAR-2019	State	-

1 - 50 of 63

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
SW FROM CITY OF MERCEDES	35399	Yes	Consecutive Connection	Surface water	Permanent	Active
3 - LOS EBANOS / LA PESCA	18053	Yes	Well	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	42436	No	Distribution System/Zone	-	-	Active
95 ACAPULCO ST; MERCEDES	137059	No	Sampling Station	-	-	Active
95 ACAPULCO ST, MERCEDES	61922	No	Sampling Station	-	-	Active
EP001	54198	No	Sampling Station	-	-	Inactive
DIRECT PRESSURE	12173	No	Transmission Main (Manifold)	-	-	Inactive
PLANT	6419	No	Treatment Plant	-	-	Inactive

1 - 8 of 8

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PLANT	6419	Gaseous Chlorination, Pre	Disinfection

1 - 1 of 1

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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