Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	TX1050039
PWS Name	WOODCREEK UTILITY CO 2
PWS Type	Community water system
Owner Type	Private
Primary Source	Groundwater under influence of surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	3096
County Served	Hays

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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	244	Returned to Compliance	01-FEB-2025	28-FEB-2025	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	243	Returned to Compliance	01-DEC-2024	31-DEC-2024	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	239	Returned to Compliance	01-OCT-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	237	Open	12-JUN-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	233	Returned to Compliance	12-MAY-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	234	Returned to Compliance	12-MAY-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	232	Open	12-APR-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	226	Returned to Compliance	12-APR-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	225	Open	05-APR-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	231	Returned to Compliance	05-APR-2019	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	224	Returned to Compliance	01-OCT-2018	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	222	Returned to Compliance	01-MAY-2018	31-MAY-2018	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	221	Returned to Compliance	01-APR-2018	30-APR-2018	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	220	Returned to Compliance	01-APR-2018	30-APR-2018	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	218	Returned to Compliance	01-MAR-2018	31-MAR-2018	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	219	Returned to Compliance	01-MAR-2018	31-MAR-2018	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	213	Returned to Compliance	01-JAN-2018	31-JAN-2018	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	212	Returned to Compliance	01-JAN-2018	31-JAN-2018	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	207	Returned to Compliance	01-DEC-2017	31-DEC-2017	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	206	Returned to Compliance	01-DEC-2017	31-DEC-2017	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	194	Returned to Compliance	01-SEP-2014	30-SEP-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	195	Returned to Compliance	01-SEP-2014	30-SEP-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	191	Returned to Compliance	01-AUG-2014	31-AUG-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	190	Returned to Compliance	01-AUG-2014	31-AUG-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	186	Returned to Compliance	01-JUL-2014	31-JUL-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	187	Returned to Compliance	01-JUL-2014	31-JUL-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	179	Returned to Compliance	01-JUN-2014	30-JUN-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	177	Returned to Compliance	01-JUN-2014	30-JUN-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	178	Returned to Compliance	01-MAY-2014	31-MAY-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	176	Returned to Compliance	01-MAY-2014	31-MAY-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	170	Returned to Compliance	01-APR-2014	30-APR-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	171	Returned to Compliance	01-APR-2014	30-APR-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	166	Returned to Compliance	01-MAR-2014	31-MAR-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	165	Returned to Compliance	01-MAR-2014	31-MAR-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	134	Returned to Compliance	01-FEB-2014	28-FEB-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	133	Returned to Compliance	01-FEB-2014	28-FEB-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	129	Returned to Compliance	01-JAN-2014	31-JAN-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	130	Returned to Compliance	01-JAN-2014	31-JAN-2014	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	162	Returned to Compliance	01-DEC-2013	31-DEC-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	160	Returned to Compliance	01-DEC-2013	31-DEC-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	158	Returned to Compliance	01-NOV-2013	30-NOV-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	156	Returned to Compliance	01-NOV-2013	30-NOV-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	152	Returned to Compliance	01-OCT-2013	31-OCT-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	154	Returned to Compliance	01-OCT-2013	31-OCT-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	150	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	148	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	146	Returned to Compliance	01-AUG-2013	31-AUG-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	144	Returned to Compliance	01-AUG-2013	31-AUG-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	140	Returned to Compliance	01-JUL-2013	31-JUL-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	142	Returned to Compliance	01-JUL-2013	31-JUL-2013	No

1 - 50 of 59

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
181	244	SOX	State Compliance achieved	17-APR-2025	State	SOX’D FEBRUARY 2025 VIOLATION BECAUSE THE PWS FULFILLED MARCH 2025 COLIFORM SAMPLE REQUIREMENTS.
178	243	SOX	State Compliance achieved	13-FEB-2025	State	2.13.25; SWILSON; SOX’D DECEMBER 2024 VIOLATION BECAUSE THE PWS FULFILLED JANUARY 2024 COLIFORM SAMPLE REQUIREMENTS.
175	239	SOX	State Compliance achieved	11-AUG-2021	State	SOX'D VIOLATION BECAUSE PWS FULFILLED 2020 LC SAMPLE REQUIREMENTS.
175	224	SOX	State Compliance achieved	11-AUG-2021	State	SOX'D VIOLATION BECAUSE PWS FULFILLED 2020 LC SAMPLE REQUIREMENTS.
156	226	SOX	State Compliance achieved	10-JUL-2019	State	-
148	233	SOX	State Compliance achieved	10-JUL-2019	State	-
146	234	SOX	State Compliance achieved	10-JUL-2019	State	-
145	222	SIF	State Public Notification received	10-JUL-2019	State	-
164	231	SOX	State Compliance achieved	10-JUL-2019	State	-
165	212	SIF	State Public Notification received	10-JUL-2019	State	-
163	213	SIF	State Public Notification received	10-JUL-2019	State	-
157	218	SIF	State Public Notification received	10-JUL-2019	State	-
155	219	SIF	State Public Notification received	10-JUL-2019	State	-
149	220	SIF	State Public Notification received	10-JUL-2019	State	-
147	221	SIF	State Public Notification received	10-JUL-2019	State	-
140	237	SIA	State Violation/Reminder Notice	28-JUN-2019	State	-
132	225	SIA	State Violation/Reminder Notice	06-MAY-2019	State	-
131	232	SIA	State Violation/Reminder Notice	06-MAY-2019	State	-
121	206	SIF	State Public Notification received	11-JAN-2019	State	-
122	207	SIF	State Public Notification received	11-JAN-2019	State	-
63	120	SOX	State Compliance achieved	28-JUL-2015	State	-
63	118	SOX	State Compliance achieved	28-JUL-2015	State	-
56	195	SIF	State Public Notification received	20-APR-2015	State	-
55	194	SIF	State Public Notification received	20-APR-2015	State	-
59	190	SIF	State Public Notification received	20-APR-2015	State	-
60	191	SIF	State Public Notification received	20-APR-2015	State	-
54	142	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	144	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	146	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	148	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	150	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	152	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	154	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	156	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	158	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	160	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	162	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	165	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	166	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	170	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	171	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	176	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	177	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	178	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	179	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	186	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	187	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	140	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	138	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014
54	136	SOX	State Compliance achieved	16-JAN-2015	State	01/16/2015; AKATTERJ; OCTOBER 2014 SWMOR RECEIVED ON 11/17/2014

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
E	19816	Yes	Well	Ground water	Other	Inactive
21 - GOLF CREST DR (GUI)	19820	Yes	Well	Ground water under the influence of surface water	Permanent	Active
22 - ARAPAHO LN (GUI)	19819	Yes	Well	Ground water under the influence of surface water	Permanent	Active
23 - CRAZY CROSS	67208	Yes	Well	Ground water	Other	Inactive
C	19818	Yes	Well	Ground water	Other	Inactive
D	19817	Yes	Well	Ground water	Other	Inactive
RAW-TAP	117523	No	Common Headers	-	-	Inactive
RAW-TAP	117524	No	Common Headers	-	-	Inactive
DISTRIBUTION SYSTEM	42222	No	Distribution System/Zone	-	-	Active
GOLF CREST DR - 400 GPM - SP	76604	No	Pump Facility	-	-	Active
GOLF CREST DR - 400 GPM - SP	76605	No	Pump Facility	-	-	Active
GOLF CREST DR - 400 GPM - SP	76606	No	Pump Facility	-	-	Active
ARAPAHO LN - 520 GPM - SP	76607	No	Pump Facility	-	-	Active
ARAPAHO LN - 520 GPM - SP	83928	No	Pump Facility	-	-	Active
ARAPAHO LN - 520 GPM - SP	83929	No	Pump Facility	-	-	Active
GOLFCREST LN / FALLING LEAF DR; WIMBERLY	136879	No	Sampling Station	-	-	Active
ARAPAHO LN / CHEYENNE TRL; WIMBERLY	136880	No	Sampling Station	-	-	Active
GOLFCREST LN / FALLING LEAF DR, WIMBERLY	53941	No	Sampling Station	-	-	Active
ARAPAHO LN / CHEYENNE TRL, WIMBERLY	53942	No	Sampling Station	-	-	Active
SAMPLE TAP? / TRINITY MIDDLE	67614	No	Sampling Station	-	-	Active
ARAPAHO LN - 0.124 MG - GR	103329	No	Storage	-	-	Active
ARAPAHO LN - 0.250 MG - EL	103330	No	Storage	-	-	Active
GOLF CREST DR - 0.124 MG - GR	103331	No	Storage	-	-	Active
GUITP-GOLF CREST DR PLANT	10580	No	Treatment Plant	-	-	Active
GUITP-ARAPAHO LN PLANT	9940	No	Treatment Plant	-	-	Active
CRAZY CROSS	67540	No	Treatment Plant	-	-	Inactive

1 - 26 of 26

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
GUITP-GOLF CREST DR PLANT	10580	Gaseous Chlorination, Pre	Disinfection
GUITP-GOLF CREST DR PLANT	10580	Microscreening	Particulate removal
GUITP-GOLF CREST DR PLANT	10580	Filtration, Cartridge	Particulate removal
GUITP-GOLF CREST DR PLANT	10580	Filtration, Cartridge	Particulate removal
GUITP-GOLF CREST DR PLANT	10580	Innovative	Disinfection
GUITP-ARAPAHO LN PLANT	9940	Microscreening	Particulate removal
GUITP-ARAPAHO LN PLANT	9940	Filtration, Cartridge	Particulate removal
GUITP-ARAPAHO LN PLANT	9940	Filtration, Cartridge	Particulate removal
GUITP-ARAPAHO LN PLANT	9940	Innovative	Disinfection
GUITP-ARAPAHO LN PLANT	9940	Gaseous Chlorination, Pre	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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