Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	TX2140018
PWS Name	CITY OF RIO GRANDE CITY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	18912
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	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	960009599	Open	01-JUL-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	960009521	Returned to Compliance	01-JUL-2023	-	No
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	960009516	Returned to Compliance	01-JUL-2023	31-JUL-2023	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	960009515	Returned to Compliance	01-JUL-2023	31-JUL-2023	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	960009345	Returned to Compliance	01-OCT-2020	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	960009344	Returned to Compliance	01-JUL-2020	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	960009462	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	960009456	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	960009455	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	960009458	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	960009461	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	960009454	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	960009453	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	960009452	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	960009451	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	960009460	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	960009459	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	960009450	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	960009281	Returned to Compliance	01-DEC-2018	31-DEC-2018	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	960009309	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	960009308	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	960009318	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	960009317	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	960009305	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	960009311	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	960009306	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	960009307	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	960009312	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	960009313	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	960009314	Known	01-JAN-2017	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	960009315	Known	01-JAN-2017	31-DEC-2019	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	960009233	Returned to Compliance	01-MAR-2015	31-MAR-2015	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	960009234	Returned to Compliance	18-DEC-2014	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	960009209	Returned to Compliance	01-NOV-2014	30-NOV-2014	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	960009206	Returned to Compliance	29-SEP-2014	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	960009449	Known	01-JAN-2014	31-DEC-2022	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	960009170	Returned to Compliance	07-APR-2010	-	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	960009166	Returned to Compliance	01-NOV-2009	30-NOV-2009	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	960009169	Open	22-JUL-2009	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1007	Returned to Compliance	01-FEB-2009	28-FEB-2009	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	105	Returned to Compliance	01-MAR-2005	31-MAR-2005	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	205	Returned to Compliance	01-JAN-2005	31-JAN-2005	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	605	Returned to Compliance	01-DEC-2004	31-DEC-2004	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	303	Returned to Compliance	01-OCT-2002	31-OCT-2002	No
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	960009165	Returned to Compliance	01-JAN-1996	31-MAR-1996	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	950009055	Returned to Compliance	01-OCT-1995	31-DEC-1995	Yes
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

1 - 47 of 47

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
1525	960009599	SIA	State Violation/Reminder Notice	31-DEC-2025	State	-
1509	960009521	SOX	State Compliance achieved	13-NOV-2023	State	11/13/2023; KRAMIREZ; SYSTEM SUBMITTED AN ADEQUATE 2022 CCR/COD
1507	960009516	SIF	State Public Notification received	27-SEP-2023	State	-
1508	960009515	SIF	State Public Notification received	27-SEP-2023	State	-
1469	960009345	SOX	State Compliance achieved	01-SEP-2021	State	2021 SAMPLING SUCCESSFULLY COMPLETE-MR 9/1/21
1468	960009344	SOX	State Compliance achieved	17-MAR-2021	State	-
1448	960009281	SIF	State Public Notification received	27-JUN-2019	State	-
1436	960009233	SOX	State Compliance achieved	04-AUG-2016	State	-
1428	960009169	SO6	State Intentional no-action	30-JUL-2015	State	-
1428	960009170	SO6	State Intentional no-action	30-JUL-2015	State	-
1427	960009209	SIF	State Public Notification received	08-APR-2015	State	-
1426	960009234	SOX	State Compliance achieved	08-APR-2015	State	-
1420	960009206	SOX	State Compliance achieved	04-DEC-2014	State	-
1414	205	SOX	State Compliance achieved	06-AUG-2010	State	-
1414	303	SOX	State Compliance achieved	06-AUG-2010	State	-
1414	605	SOX	State Compliance achieved	06-AUG-2010	State	-
1414	105	SOX	State Compliance achieved	06-AUG-2010	State	-
1413	950009055	SOX	State Compliance achieved	07-JUL-2010	State	SDWIS 2010 CLEANUP
1413	960009165	SOX	State Compliance achieved	07-JUL-2010	State	SDWIS 2010 CLEANUP
1412	960009166	SOX	State Compliance achieved	01-JUN-2010	State	AUTOMATIC RETURN TO COMPLIANCE 05/26/2010
1411	1007	SOX	State Compliance achieved	01-SEP-2009	State	AUTOMATIC RETURN TO COMPLIANCE 05/26/2010
193	9999193	SOX	State Compliance achieved	30-JUN-1993	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTAKE 2	114323	Yes	Intake	Surface water	Permanent	Active
INTAKE 1	33876	Yes	Intake	Surface water	Permanent	Active
RAW-TAP	117699	No	Common Headers	-	-	Active
RAW-TAP	117700	No	Common Headers	-	-	Active
DISTRIBUTION SYSTEM	45325	No	Distribution System/Zone	-	-	Active
210 S SANTO NINO - 3350 GPM - SP	72452	No	Pump Facility	-	-	Active
210 S SANTO NINO - 3350 GPM - SP	72453	No	Pump Facility	-	-	Active
210 S SANTO NINO - 3350 GPM - SP	72454	No	Pump Facility	-	-	Active
LAS LOMAS BOOSTER STA - 800 GPM - SP	72455	No	Pump Facility	-	-	Active
LAS LOMAS BOOSTER STA - 800 GPM - SP	72456	No	Pump Facility	-	-	Active
LAS LOMAS BOOSTER STA - 800 GPM - SP	72457	No	Pump Facility	-	-	Active
SAN ANTONIO ST - 1500 GPM - SP	123251	No	Pump Facility	-	-	Inactive
EISENHOWER - 1500 GPM - SP	123252	No	Pump Facility	-	-	Inactive
210 S SANTO NINO - 750 GPM - SP	72449	No	Pump Facility	-	-	Inactive
210 S SANTO NINO - 750 GPM - SP	72450	No	Pump Facility	-	-	Inactive
210 S SANTO NINO - 750 GPM - SP	72451	No	Pump Facility	-	-	Inactive
1845 DINA P DURAN RD, RIO GRANDE CITY	114006	No	Sampling Station	-	-	Active
PLANT - 210 S SANTO NINO	139985	No	Sampling Station	-	-	Active
1845 DINA P DURAN RD; RIO GRANDE CITY	139986	No	Sampling Station	-	-	Active
PLANT - 210 S SANTO NINO	58236	No	Sampling Station	-	-	Active
PLANT SITE - 1.000 MG - GR	123253	No	Storage	-	-	Active
EISENHOWER - 1.000 MG - EL	151670	No	Storage	-	-	Active
LAS LOMAS - 0.590 MG - ST	89493	No	Storage	-	-	Active
HIDALGO ST - 0.300 MG - EL	89494	No	Storage	-	-	Active
LAS LOMAS BOOSTER STA - 0.040 MG - GR	89496	No	Storage	-	-	Active
LAS LOMAS - 0.08 MG - GR	89495	No	Storage	-	-	Inactive
SAN ANTONIO ST - 1.000 MG - EL	89497	No	Storage	-	-	Inactive
N GARCIA ST - 0.150 MG - EL	89498	No	Storage	-	-	Inactive
LAS LOMAS - 0.750 MG - ST	89499	No	Storage	-	-	Inactive
SWTP 2 - DURAN	110846	No	Treatment Plant	-	-	Active
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	No	Treatment Plant	-	-	Active

1 - 31 of 31

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
SWTP 2 - DURAN	110846	Innovative	Disinfection
SWTP 2 - DURAN	110846	Innovative	Disinfection
SWTP 2 - DURAN	110846	Rapid Mix	Particulate removal
SWTP 2 - DURAN	110846	Innovative	Disinfection
SWTP 2 - DURAN	110846	Innovative	Disinfection
SWTP 2 - DURAN	110846	Coagulation	Particulate removal
SWTP 2 - DURAN	110846	Innovative	Corrosion control
SWTP 2 - DURAN	110846	Flocculation	Particulate removal
SWTP 2 - DURAN	110846	Innovative	Particulate removal
SWTP 2 - DURAN	110846	Innovative	Particulate removal
SWTP 2 - DURAN	110846	Gaseous Chlorination, Post	Disinfection
SWTP 2 - DURAN	110846	Innovative	Disinfection
SWTP 2 - DURAN	110846	Innovative	Disinfection
SWTP 2 - DURAN	110846	Innovative	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Aeration, Cascade	Taste / odor control
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Aeration, Cascade	Taste / odor control
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Aeration, Cascade	Taste / odor control
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Rapid Mix	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Rapid Mix	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Rapid Mix	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Coagulation	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Coagulation	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Coagulation	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Corrosion control
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Corrosion control
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Corrosion control
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Gaseous Chlorination, Pre	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Gaseous Chlorination, Pre	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Gaseous Chlorination, Pre	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Flocculation	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Flocculation	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Flocculation	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Sedimentation	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Particulate removal
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Gaseous Chlorination, Post	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Gaseous Chlorination, Post	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Gaseous Chlorination, Post	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Disinfection
SWTP 1 - CITY OF RIO GRANDE CITY PUD	7944	Innovative	Disinfection

1 - 50 of 56

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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