Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	PR0004094
PWS Name	RIO LOCO
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	Territory
Is Wholesaler?	No
Population Served	1501
County Served	Guanica Municipio, Yauco Municipio

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, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4204327	Returned to Compliance	01-SEP-2014	30-SEP-2014	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4204326	Returned to Compliance	01-JUL-2014	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	4204325	Returned to Compliance	01-JUL-2013	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	4204324	Returned to Compliance	01-JAN-2009	31-MAR-2009	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	4204323	Returned to Compliance	01-JAN-2009	31-MAR-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	4204312	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	4204301	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	4204302	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	4204303	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	4204304	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	4204305	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	4204306	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	4204307	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	4204308	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	4204309	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	4204300	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	4204320	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	4204319	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	4204318	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	4204317	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	4204316	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	4204315	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	4204314	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	4204313	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	4204311	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	4204310	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	4204321	Known	01-JUL-2005	30-SEP-2005	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	4204322	Known	01-JUL-2005	30-SEP-2005	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3897599	Known	01-NOV-1998	30-NOV-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	4204099	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	4203899	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	4204299	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	4204199	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	4203999	Known	01-JAN-1998	31-MAR-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	4203799	Known	01-JAN-1998	31-MAR-1998	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3666998	Open	01-JUL-1997	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2246095	Known	01-OCT-1994	31-OCT-1994	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2154594	Known	01-SEP-1994	30-SEP-1994	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2154494	Known	01-AUG-1994	31-AUG-1994	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2154394	Known	01-JUL-1994	31-JUL-1994	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	223780	Known	01-SEP-1980	30-SEP-1980	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	223880	Known	01-SEP-1980	30-SEP-1980	No

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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
4255508	4204325	SO0	State no longer subject to Rule	13-JUL-2016	State	-
4255507	4204327	SOX	State Compliance achieved	31-MAR-2015	State	-
4255504	4204326	SOX	State Compliance achieved	20-AUG-2014	State	-
4255503	4204324	SOX	State Compliance achieved	30-JUN-2009	State	-
4255503	4204323	SOX	State Compliance achieved	30-JUN-2009	State	-
4255500	4204306	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204307	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204308	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204309	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204310	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204311	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204312	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204313	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204314	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204315	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204316	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204317	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204318	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204319	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204320	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204321	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204322	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204305	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204304	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204303	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204302	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204300	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-
4255500	4204301	SFJ	State Formal Notice of Violation issued	23-AUG-2006	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
RIO LOCO WELL	1431	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	2464	No	Distribution System/Zone	-	-	Active
RIO LOCO WELL	984	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
RIO LOCO WELL	984	Gaseous Chlorination, Post	Disinfection

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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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