Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	TX2140016
PWS Name	RIO WSC
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	6939
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
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	90060522	Known	01-NOV-2025	30-NOV-2025	No
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	90060514	Returned to Compliance	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	90060513	Returned to Compliance	17-OCT-2024	-	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	90060512	Returned to Compliance	01-JUL-2023	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	90060509	Returned to Compliance	01-JUL-2022	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	90060503	Returned to Compliance	30-DEC-2021	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90060504	Open	23-DEC-2021	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90060502	Open	01-NOV-2021	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	90060506	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90060501	Open	01-OCT-2021	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90060505	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	90060507	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90060499	Open	01-SEP-2021	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	90060500	Returned to Compliance	01-JUL-2021	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060497	Returned to Compliance	01-OCT-2020	31-OCT-2020	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	90060495	Returned to Compliance	01-OCT-2020	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060496	Returned to Compliance	01-SEP-2020	30-SEP-2020	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060492	Returned to Compliance	01-AUG-2020	31-AUG-2020	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	90060494	Returned to Compliance	01-JUL-2020	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060491	Returned to Compliance	01-JUL-2020	31-JUL-2020	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90060486	Returned to Compliance	21-JUN-2020	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90060487	Returned to Compliance	21-JUN-2020	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060490	Returned to Compliance	01-JUN-2020	30-JUN-2020	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060488	Returned to Compliance	01-MAY-2020	31-MAY-2020	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	90060438	Returned to Compliance	01-MAY-2019	31-MAY-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	90060437	Returned to Compliance	01-MAY-2019	31-MAY-2019	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060394	Returned to Compliance	01-JAN-2018	31-JAN-2018	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060393	Returned to Compliance	01-DEC-2017	31-DEC-2017	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060392	Returned to Compliance	01-NOV-2017	30-NOV-2017	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060391	Returned to Compliance	01-OCT-2017	31-OCT-2017	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90060390	Returned to Compliance	01-SEP-2017	30-SEP-2017	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	90060389	Returned to Compliance	01-JUL-2017	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	90060385	Returned to Compliance	01-JUL-2016	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	90060382	Returned to Compliance	30-DEC-2014	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	90060379	Returned to Compliance	01-JUL-2014	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90060374	Returned to Compliance	13-FEB-2014	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90060375	Returned to Compliance	13-FEB-2014	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90060371	Returned to Compliance	01-JUL-2013	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	90060364	Returned to Compliance	01-MAY-2013	31-MAY-2013	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90060372	Returned to Compliance	01-APR-2013	30-JUN-2013	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90060373	Returned to Compliance	01-JAN-2013	31-MAR-2013	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90060370	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90060369	Returned to Compliance	01-JUL-2012	30-SEP-2012	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90060368	Returned to Compliance	01-APR-2012	30-JUN-2012	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90060367	Returned to Compliance	01-JAN-2012	31-MAR-2012	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90060366	Returned to Compliance	01-OCT-2011	31-DEC-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90060365	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	90060376	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	90060377	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90060359	Returned to Compliance	01-OCT-2008	31-DEC-2008	No

1 - 50 of 50

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
90092387	90060514	SIF	State Public Notification received	23-MAY-2025	State	-
90092388	90060513	SIF	State Public Notification received	23-MAY-2025	State	-
90092373	90060509	SOX	State Compliance achieved	19-OCT-2023	State	10/19/2023; KRAMIREZ; SYSTEM SUBMITTED ADEQUATE 2022 CCR TO RTC PREV CCR YEARS
90092377	90060512	SOX	State Compliance achieved	19-OCT-2023	State	10/19/2023; KRAMIREZ; SYSTEM SUBMITTED ADEQUATE 2022 CCR TO RTC PREV CCR YEARS
90092374	90060500	SOX	State Compliance achieved	19-OCT-2023	State	10/19/2023; KRAMIREZ; SYSTEM SUBMITTED ADEQUATE 2022 CCR TO RTC PREV CCR YEARS
90092375	90060494	SOX	State Compliance achieved	19-OCT-2023	State	10/19/2023; KRAMIREZ; SYSTEM SUBMITTED ADEQUATE 2022 CCR TO RTC PREV CCR YEARS
90092372	90060503	SOX	State Compliance achieved	01-JUN-2023	State	LCN RCVD 06/01/2023 - KAC 07/05/2023
90092365	90060506	SIF	State Public Notification received	13-MAY-2022	State	-
90092364	90060507	SIF	State Public Notification received	13-MAY-2022	State	-
90092365	90060505	SIF	State Public Notification received	13-MAY-2022	State	-
90092357	90060504	SIA	State Violation/Reminder Notice	25-JAN-2022	State	-
90092356	90060502	SIA	State Violation/Reminder Notice	19-NOV-2021	State	-
90092355	90060501	SIA	State Violation/Reminder Notice	27-OCT-2021	State	-
90092354	90060495	SOX	State Compliance achieved	04-OCT-2021	State	ANNUAL 2021 SAMPLING COMPLETE - AW 10/04/2021
90092352	90060499	SIA	State Violation/Reminder Notice	23-SEP-2021	State	-
90092349	90060488	SOX	State Compliance achieved	21-DEC-2020	State	SOX'D VIOLATION BECAUSE PWS FUFILLED NOVEMBER 2020 COLIFORM SAMPLE REQUIREMENTS
90092349	90060490	SOX	State Compliance achieved	21-DEC-2020	State	SOX'D VIOLATION BECAUSE PWS FUFILLED NOVEMBER 2020 COLIFORM SAMPLE REQUIREMENTS
90092349	90060491	SOX	State Compliance achieved	21-DEC-2020	State	SOX'D VIOLATION BECAUSE PWS FUFILLED NOVEMBER 2020 COLIFORM SAMPLE REQUIREMENTS
90092349	90060492	SOX	State Compliance achieved	21-DEC-2020	State	SOX'D VIOLATION BECAUSE PWS FUFILLED NOVEMBER 2020 COLIFORM SAMPLE REQUIREMENTS
90092349	90060497	SOX	State Compliance achieved	21-DEC-2020	State	SOX'D VIOLATION BECAUSE PWS FUFILLED NOVEMBER 2020 COLIFORM SAMPLE REQUIREMENTS
90092349	90060496	SOX	State Compliance achieved	21-DEC-2020	State	SOX'D VIOLATION BECAUSE PWS FUFILLED NOVEMBER 2020 COLIFORM SAMPLE REQUIREMENTS
90092324	90060437	SIF	State Public Notification received	02-SEP-2020	State	-
90092322	90060438	SIF	State Public Notification received	02-SEP-2020	State	-
90092321	90060486	SOX	State Compliance achieved	02-SEP-2020	State	-
90092323	90060487	SOX	State Compliance achieved	02-SEP-2020	State	-
90092315	90060382	SFO	State Administrative/Compliance Order with penalty issued	18-AUG-2020	State	TCEQ DOCKET NO. 2019-0970-PWS-E. FINAL TR DUE DATE 10/2/2021.
90092271	90060374	SOX	State Compliance achieved	12-JUL-2018	State	-
90092272	90060372	SIF	State Public Notification received	12-JUL-2018	State	-
90092273	90060375	SOX	State Compliance achieved	12-JUL-2018	State	-
90092274	90060373	SIF	State Public Notification received	12-JUL-2018	State	-
90092269	90060394	SOX	State Compliance achieved	13-APR-2018	State	CPOPE; 4/13/2018; Applied SOX code to outstanding 3A violations, PWS met criteria to return to compliance.
90092269	90060390	SOX	State Compliance achieved	13-APR-2018	State	CPOPE; 4/13/2018; Applied SOX code to outstanding 3A violations, PWS met criteria to return to compliance.
90092269	90060391	SOX	State Compliance achieved	13-APR-2018	State	CPOPE; 4/13/2018; Applied SOX code to outstanding 3A violations, PWS met criteria to return to compliance.
90092269	90060392	SOX	State Compliance achieved	13-APR-2018	State	CPOPE; 4/13/2018; Applied SOX code to outstanding 3A violations, PWS met criteria to return to compliance.
90092269	90060393	SOX	State Compliance achieved	13-APR-2018	State	CPOPE; 4/13/2018; Applied SOX code to outstanding 3A violations, PWS met criteria to return to compliance.
90092254	90060385	SOX	State Compliance achieved	13-DEC-2017	State	-
90092254	90060389	SOX	State Compliance achieved	13-DEC-2017	State	-
90092241	90060379	SOX	State Compliance achieved	26-JUN-2015	State	07/24/2015;MMACNAMARA; SYSTEM SUBMITTED AN ADEQUATE 2014 CCR.
90092235	90060359	SOX	State Compliance achieved	24-MAR-2014	State	2014/03/24:BCARRUTH:DLQOR SUBMITTED
90092235	90060365	SOX	State Compliance achieved	24-MAR-2014	State	2014/03/24:BCARRUTH:DLQOR SUBMITTED
90092235	90060366	SOX	State Compliance achieved	24-MAR-2014	State	2014/03/24:BCARRUTH:DLQOR SUBMITTED
90092235	90060369	SOX	State Compliance achieved	24-MAR-2014	State	2014/03/24:BCARRUTH:DLQOR SUBMITTED
90092235	90060370	SOX	State Compliance achieved	24-MAR-2014	State	2014/03/24:BCARRUTH:DLQOR SUBMITTED
90092235	90060368	SOX	State Compliance achieved	24-MAR-2014	State	2014/03/24:BCARRUTH:DLQOR SUBMITTED
90092232	90060367	SOX	State Compliance achieved	15-JAN-2014	State	1/15/2014:BCARRUTH:DLQOR RTC
90092236	90060364	SFO	State Administrative/Compliance Order with penalty issued	09-DEC-2013	State	DOCKET NO 2013-1293-PWS-E
90092225	90060371	SIA	State Violation/Reminder Notice	19-SEP-2013	State	-
90092238	90060377	SOX	State Compliance achieved	01-OCT-2012	State	-
90092237	90060376	SOX	State Compliance achieved	01-OCT-2012	State	-

1 - 49 of 49

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
SW FROM RIO GRANDE CITY	35823	Yes	Consecutive Connection	Surface water	Other	Inactive
INTAKE 1 - RIO GRANDE RIVER	118661	Yes	Intake	Surface water	Permanent	Active
RAW-TAP	121860	No	Common Headers	-	-	Active
PLANT SITE - 0.8 MG - GS	127992	No	Clear Well	-	-	Active
DISTRIBUTION SYSTEM	45323	No	Distribution System/Zone	-	-	Active
PLANT SITE - 1200 GPM - SP	127993	No	Pump Facility	-	-	Active
PLANT SITE - 1200 GPM - SP	127994	No	Pump Facility	-	-	Active
PLANT SITE - 700 GPM - SP	127995	No	Pump Facility	-	-	Active
ALVAREZ BOOSTER - 180 GPM - SP	158331	No	Pump Facility	-	-	Active
ALVAREZ BOOSTER - 375 GPM - SP	158332	No	Pump Facility	-	-	Active
TRANSFER PUMP- 700 GPM	149605	No	Pump Facility	-	-	Inactive
TRANSFER PUMP NO. 2- 700 GPM	149608	No	Pump Facility	-	-	Inactive
ALVAREZ BOOSTER - 375 PGM - SP	158330	No	Pump Facility	-	-	Inactive
92 LEOS RD; RIO GRANDE CITY	139983	No	Sampling Station	-	-	Active
196 MIDWAY RD, RIO GRANDE CITY	150521	No	Sampling Station	-	-	Active
196 MIDWAY RD, RIO GRANDE CITY	150522	No	Sampling Station	-	-	Active
92 LEOS RD, RIO GRANDE CITY	58234	No	Sampling Station	-	-	Active
HERNANDEZ BS - 0.216 MG - GR	127990	No	Storage	-	-	Active
ALVAREZ BS - 0.380 MG - ST	127991	No	Storage	-	-	Active
FM 3765 - 0.5 MG - EL	149602	No	Storage	-	-	Active
SWTP - MIDWAY RD - 2.0 MG	118269	No	Treatment Plant	-	-	Active
BOOSTER STATION	63278	No	Treatment Plant	-	-	Inactive

1 - 22 of 22

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
SWTP - MIDWAY RD - 2.0 MG	118269	Gaseous Chlorination, Pre	Disinfection
SWTP - MIDWAY RD - 2.0 MG	118269	Innovative	Disinfection
SWTP - MIDWAY RD - 2.0 MG	118269	Rapid Mix	Particulate removal
SWTP - MIDWAY RD - 2.0 MG	118269	Innovative	Particulate removal
SWTP - MIDWAY RD - 2.0 MG	118269	Gaseous Chlorination, Pre	Disinfection
SWTP - MIDWAY RD - 2.0 MG	118269	Innovative	Particulate removal
SWTP - MIDWAY RD - 2.0 MG	118269	Innovative	Disinfection
SWTP - MIDWAY RD - 2.0 MG	118269	Gaseous Chlorination, Post	Disinfection
SWTP - MIDWAY RD - 2.0 MG	118269	Innovative	Disinfection
SWTP - MIDWAY RD - 2.0 MG	118269	Innovative	Disinfection
SWTP - MIDWAY RD - 2.0 MG	118269	Innovative	Disinfection

1 - 11 of 11

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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