Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NM3502407
PWS Name	LOWER RIO GRANDE PWWA SOUTH VALLEY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	11542
County Served	Dona Ana

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
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	29	Returned to Compliance	01-APR-2013	30-JUN-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	28	Returned to Compliance	01-JAN-2013	31-MAR-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	30	Returned to Compliance	01-OCT-2012	31-DEC-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	27	Returned to Compliance	01-JUL-2012	30-SEP-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	26	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	21	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	22	Returned to Compliance	01-OCT-2011	31-DEC-2011	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	18	Returned to Compliance	18-AUG-2011	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	24	Returned to Compliance	01-JUL-2011	30-SEP-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	17	Returned to Compliance	01-APR-2011	30-JUN-2011	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	19	Returned to Compliance	25-FEB-2011	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	20	Returned to Compliance	25-FEB-2011	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Asbestos	36	Returned to Compliance	01-JAN-2011	31-DEC-2013	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	4	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	2	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9	Returned to Compliance	01-JUL-2010	30-SEP-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	10	Returned to Compliance	01-APR-2010	30-JUN-2010	Yes

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
48	36	SIA	State Violation/Reminder Notice	18-JUL-2025	State	-
39	9	SOX	State Compliance achieved	05-JAN-2017	State	-
39	28	SOX	State Compliance achieved	05-JAN-2017	State	-
39	27	SOX	State Compliance achieved	05-JAN-2017	State	-
39	1	SOX	State Compliance achieved	05-JAN-2017	State	-
39	21	SOX	State Compliance achieved	05-JAN-2017	State	-
39	29	SOX	State Compliance achieved	05-JAN-2017	State	-
39	30	SOX	State Compliance achieved	05-JAN-2017	State	-
39	10	SOX	State Compliance achieved	05-JAN-2017	State	-
39	26	SOX	State Compliance achieved	05-JAN-2017	State	-
33	19	SOX	State Compliance achieved	26-MAR-2014	State	-
33	18	SOX	State Compliance achieved	26-MAR-2014	State	-
33	20	SOX	State Compliance achieved	26-MAR-2014	State	-
22	22	SOX	State Compliance achieved	29-FEB-2012	State	The 1st sample from the new treatment plant (treatment plant # 3) was taken on 2/29/12 and the results were half the MCL. SOY was for samples taken at the treatment plant # 3 location while treatment was being installed, violations were SOXed.
22	17	SOX	State Compliance achieved	29-FEB-2012	State	The 1st sample from the new treatment plant (treatment plant # 3) was taken on 2/29/12 and the results were half the MCL. SOY was for samples taken at the treatment plant # 3 location while treatment was being installed, violations were SOXed.
22	4	SOX	State Compliance achieved	29-FEB-2012	State	The 1st sample from the new treatment plant (treatment plant # 3) was taken on 2/29/12 and the results were half the MCL. SOY was for samples taken at the treatment plant # 3 location while treatment was being installed, violations were SOXed.
22	2	SOX	State Compliance achieved	29-FEB-2012	State	The 1st sample from the new treatment plant (treatment plant # 3) was taken on 2/29/12 and the results were half the MCL. SOY was for samples taken at the treatment plant # 3 location while treatment was being installed, violations were SOXed.
22	24	SOX	State Compliance achieved	29-FEB-2012	State	The 1st sample from the new treatment plant (treatment plant # 3) was taken on 2/29/12 and the results were half the MCL. SOY was for samples taken at the treatment plant # 3 location while treatment was being installed, violations were SOXed.

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL #5	1649	Yes	Well	Ground water	Emergency	Inactive
WELL #2	3167	Yes	Well	Ground water	Permanent	Inactive
WELL #1	3118	Yes	Well	Ground water	Permanent	Inactive
WELL #10	2358	Yes	Well	Ground water	Permanent	Inactive
WELL #1	2097	Yes	Well	Ground water	Permanent	Inactive
WELL #1	2096	Yes	Well	Ground water	Permanent	Inactive
WELL #4 (LA MESA)	8832	Yes	Well	Ground water	Permanent	Active
WELL #14 (BRAZITO)	3168	Yes	Well	Ground water	Permanent	Active
WELL #13 (BRAZITO)	3166	Yes	Well	Ground water	Permanent	Active
WELL #6 (MESQUITE)	3122	Yes	Well	Ground water	Permanent	Active
WELL #8 (MESQUITE)	3121	Yes	Well	Ground water	Permanent	Active
WELL #3 (DESERT SANDS)	2098	Yes	Well	Ground water	Permanent	Active
WELL #10A	14915	Yes	Well	Ground water	Permanent	Active
WELL #12 (LA MESA)	13693	Yes	Well	Ground water	Permanent	Active
WELL #2 (DESERT SANDS)	13097	Yes	Well	Ground water	Permanent	Active
WELL #2	3119	Yes	Well	Ground water	Other	Inactive
WELL #7	3120	Yes	Well	Ground water	Emergency	Inactive
WELL #9	2357	Yes	Well	Ground water	Emergency	Inactive
WELL #1	2356	Yes	Well	Ground water	Emergency	Inactive
DIST	13204	No	Distribution System/Zone	-	-	Active
ENTRY POINT #1 (BRAZITO)	10129	No	Other	-	-	Inactive
BOOSTER PUMP FACILITY #1	10127	No	Pump Facility	-	-	Inactive
STORAGE TANK # 16 (BRAZITO)	10126	No	Storage	-	-	Active
STORAGE TANK #15 (LA MESA)	13695	No	Storage	-	-	Active
STORAGE TANK #18 (BRAZITO)	13696	No	Storage	-	-	Active
STORAGE TANK #10 (MESQUITE)	14123	No	Storage	-	-	Active
STORAGE TANK #17 (BRAZITOS)	14124	No	Storage	-	-	Active
STORAGE TANK #14 (BERINO)	14125	No	Storage	-	-	Active
STORAGE TANK #2 (DESERT SANDS)	146	No	Storage	-	-	Active
STORAGE TANK #3 (DESERT SANDS)	147	No	Storage	-	-	Active
STORAGE TANK #8 (MESQUITE)	7975	No	Storage	-	-	Active
STORAGE TANK #9 (MESQUITE)	7977	No	Storage	-	-	Active
STORAGE TANK #5 (LA MESA)	8834	No	Storage	-	-	Active
STORAGE TANK #1 (DESERT SANDS)	9037	No	Storage	-	-	Active
PRESSURE TANK #1	10128	No	Storage	-	-	Inactive
STORAGE TANK #4	178	No	Storage	-	-	Inactive
STORAGE TANK #14	179	No	Storage	-	-	Inactive
STORAGE TANK #6	7941	No	Storage	-	-	Inactive
STORAGE TANK #7	7974	No	Storage	-	-	Inactive
STORAGE TANK #3	7976	No	Storage	-	-	Inactive
STORAGE TANK #12	9036	No	Storage	-	-	Inactive
TREATMENT PLANT #2 (DESERT SANDS)	13098	No	Treatment Plant	-	-	Active
TREATMENT PLANT #3 (DESERT SANDS)	1312	No	Treatment Plant	-	-	Active
TREATMENT PLANT #12 (LA MESA)	13694	No	Treatment Plant	-	-	Active
TREATMENT PLANT #13 (BRAZITO)	1486	No	Treatment Plant	-	-	Active
BERINO TREATMENT PLANT	14916	No	Treatment Plant	-	-	Active
TREATMENT PLANT #4 (LA MESA)	8833	No	Treatment Plant	-	-	Active
TREATMENT PLANT #6 (MESQUITE)	9024	No	Treatment Plant	-	-	Active
TREATMENT PLANT #8 (MESQUITE)	975	No	Treatment Plant	-	-	Active
TREATMENT PLANT #1	1304	No	Treatment Plant	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT #1	1304	Filtration, Cartridge	Inorganics removal
TREATMENT PLANT #1	1304	Hypochlorination, Post	Disinfection
TREATMENT PLANT #2 (DESERT SANDS)	13098	Coagulation	Inorganics removal
TREATMENT PLANT #2 (DESERT SANDS)	13098	Filtration, Pressure Sand	Inorganics removal
TREATMENT PLANT #2 (DESERT SANDS)	13098	Hypochlorination, Pre	Disinfection
TREATMENT PLANT #3 (DESERT SANDS)	1312	Coagulation	Inorganics removal
TREATMENT PLANT #3 (DESERT SANDS)	1312	Filtration, Pressure Sand	Inorganics removal
TREATMENT PLANT #3 (DESERT SANDS)	1312	Hypochlorination, Pre	Disinfection
TREATMENT PLANT #12 (LA MESA)	13694	Gaseous Chlorination, Post	Disinfection
TREATMENT PLANT #12 (LA MESA)	13694	Sequestration	Manganese removal
TREATMENT PLANT #12 (LA MESA)	13694	Sequestration	Iron removal
TREATMENT PLANT #5	1473	Hypochlorination, Post	Disinfection
TREATMENT PLANT #13 (BRAZITO)	1486	Sequestration	Iron removal
TREATMENT PLANT #13 (BRAZITO)	1486	Distillation	Iron removal
TREATMENT PLANT #13 (BRAZITO)	1486	Sequestration	Manganese removal
TREATMENT PLANT #1	1488	Hypochlorination, Post	Disinfection
BERINO TREATMENT PLANT	14916	Gaseous Chlorination, Pre	Disinfection
BERINO TREATMENT PLANT	14916	Coagulation	Inorganics removal
BERINO TREATMENT PLANT	14916	Filtration, Pressure Sand	Inorganics removal
TREATMENT PLANT #10	674	Hypochlorination, Post	Disinfection
TREATMENT PLANT #4 (LA MESA)	8833	Gaseous Chlorination, Post	Disinfection
TREATMENT PLANT #4 (LA MESA)	8833	Sequestration	Manganese removal
TREATMENT PLANT #4 (LA MESA)	8833	Sequestration	Iron removal
TREATMENT PLANT #6 (MESQUITE)	9024	Sequestration	Manganese removal
TREATMENT PLANT #6 (MESQUITE)	9024	Sequestration	Iron removal
TREATMENT PLANT #6 (MESQUITE)	9024	Gaseous Chlorination, Post	Disinfection
TREATMENT PLANT #5	9028	Hypochlorination, Post	Disinfection
TREATMENT PLANT #8 (MESQUITE)	975	Gaseous Chlorination, Post	Disinfection
TREATMENT PLANT #8 (MESQUITE)	975	Sequestration	Manganese removal
TREATMENT PLANT #8 (MESQUITE)	975	Sequestration	Iron removal

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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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