Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	TX1010617
PWS Name	TRAIL OF THE LAKES MUD
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	9480
County Served	Harris

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	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	990009897	Returned to Compliance	06-OCT-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	990009896	Returned to Compliance	06-OCT-2024	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	990009902	Known	01-APR-2024	30-JUN-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	990009901	Known	01-APR-2024	30-JUN-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	990009888	Known	01-JAN-2024	31-MAR-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	990009887	Known	01-JAN-2024	31-MAR-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	990009892	Known	01-OCT-2023	31-DEC-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	990009891	Known	01-OCT-2023	31-DEC-2023	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	990009877	Returned to Compliance	25-JUL-2008	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	990009876	Returned to Compliance	26-MAY-2008	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	408	Returned to Compliance	01-NOV-2007	30-NOV-2007	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	308	Returned to Compliance	01-NOV-2007	30-NOV-2007	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	203	Returned to Compliance	01-OCT-2001	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	103	Returned to Compliance	01-OCT-2001	30-SEP-2004	Yes
Other	Notification, Public	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	10001015	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
Other	Notification, Public	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	10001016	Returned to Compliance	01-JUL-2001	30-SEP-2001	No
Other	Notification, Public	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	10000907	Returned to Compliance	01-APR-2001	30-JUN-2001	No
Other	Notification, Public	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	10000908	Returned to Compliance	01-APR-2001	30-JUN-2001	No
Other	Notification, Public	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	10000628	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
Other	Notification, Public	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	10000627	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	990009875	Returned to Compliance	01-JAN-1999	31-DEC-2001	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	990009874	Returned to Compliance	01-JAN-1999	31-DEC-2001	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	990009186	Returned to Compliance	01-JAN-1996	31-DEC-1998	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	990009194	Returned to Compliance	01-JAN-1996	31-DEC-1998	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	298	Known	01-JAN-1996	31-DEC-1998	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	198	Known	01-JAN-1996	31-DEC-1998	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	327587	Known	31-DEC-1985	30-DEC-1986	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
990043251	990009902	SIF	State Public Notification received	10-APR-2025	State	-
990043252	990009901	SIF	State Public Notification received	10-APR-2025	State	-
990043250	990009888	SIF	State Public Notification received	03-FEB-2025	State	-
990043248	990009887	SIF	State Public Notification received	03-FEB-2025	State	-
990043246	990009891	SFJ	State Formal Notice of Violation issued	17-JAN-2025	State	-
990043246	990009892	SFJ	State Formal Notice of Violation issued	17-JAN-2025	State	-
990043234	990009896	SOX	State Compliance achieved	25-OCT-2024	State	-
990043235	990009897	SOX	State Compliance achieved	25-OCT-2024	State	-
1208	308	SIE	State Public Notification requested	25-APR-2008	State	-
908	408	SIA	State Violation/Reminder Notice	25-APR-2008	State	-
2	990009876	SOX	State Compliance achieved	30-NOV-2007	State	AUTOMATIC RETURN TO COMPLIANCE 05/26/2010
1	990009877	SOX	State Compliance achieved	30-NOV-2007	State	AUTOMATIC RETURN TO COMPLIANCE 05/26/2010
603	203	SIA	State Violation/Reminder Notice	23-MAR-2003	State	; ; ; ;
303	103	SIA	State Violation/Reminder Notice	23-MAR-2003	State	; ; ; ;
103	10001015	SOX	State Compliance achieved	03-MAR-2003	State	; ; ; ;
103	10001016	SOX	State Compliance achieved	03-MAR-2003	State	; ; ; ;
103	990009186	SOX	State Compliance achieved	03-MAR-2003	State	; ; ; ;
103	990009194	SOX	State Compliance achieved	03-MAR-2003	State	; ; ; ;
103	10000908	SOX	State Compliance achieved	03-MAR-2003	State	; ; ; ;
103	990009875	SOX	State Compliance achieved	03-MAR-2003	State	; ; ; ;
103	10000907	SOX	State Compliance achieved	03-MAR-2003	State	; ; ; ;
103	10000628	SOX	State Compliance achieved	03-MAR-2003	State	; ; ; ;
103	10000627	SOX	State Compliance achieved	03-MAR-2003	State	; ; ; ;
103	990009874	SOX	State Compliance achieved	03-MAR-2003	State	; ; ; ;

1 - 24 of 24

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
EMERGENCY GW FROM HARRIS COUNTY MUD 278	115316	Yes	Consecutive Connection	Ground water	Emergency	Active
1 - 3601 WINTERGREEN DR	15182	Yes	Well	Ground water	Permanent	Inactive
4 - 4901 1/2 CONIFER RIDGE WAY	63792	Yes	Well	Ground water	Permanent	Active
3 - 16319 WOODLAND HILLS	15184	Yes	Well	Ground water	Permanent	Active
2 - 17314 WOODLAND HILLS	15228	Yes	Well	Ground water	Emergency	Active
DISTRIBUTION SYSTEM	41146	No	Distribution System/Zone	-	-	Active
4901 CONFER RIDGE WAY - 1200 GPM - SP	126369	No	Pump Facility	-	-	Active
17314 WOODLAND HILLS - 1200 GPM - SP	126370	No	Pump Facility	-	-	Active
17314 WOODLAND HILLS - 1200 GPM - SP	79859	No	Pump Facility	-	-	Active
17314 WOODLAND HILLS - 750 GPM - SP	79860	No	Pump Facility	-	-	Active
17314 WOODLAND HILLS - 750 GPM - SP	79861	No	Pump Facility	-	-	Active
4901 CONFER RIDGE WAY - 1200 GPM - SP	85845	No	Pump Facility	-	-	Active
4901 CONFER RIDGE WAY - 1200 GPM - SP	85846	No	Pump Facility	-	-	Active
4901 CONFER RIDGE WAY - 1200 GPM - SP	85847	No	Pump Facility	-	-	Active
4901 1/2 CONIFER RIDGE, HUMBLE	107776	No	Sampling Station	-	-	Active
GST	135844	No	Sampling Station	-	-	Active
4901 1/2 CONIFER RIDGE; HUMBLE	135845	No	Sampling Station	-	-	Active
GST	52129	No	Sampling Station	-	-	Active
EP001	60369	No	Sampling Station	-	-	Inactive
4901 1/2 CONIFER RIDGE WAY- 0.15 MG - HD	105529	No	Storage	-	-	Active
4901 1/2 CONIFER RIDGE WAY- 0.15 MG - HD	105530	No	Storage	-	-	Active
4901 1/2 CONIFER RIDGE WAY- 0.20 MG - GR	105531	No	Storage	-	-	Active
4901 1/2 CONIFER RIDGE WAY- 0.20 MG - GR	105532	No	Storage	-	-	Active
17314 WOODLAND HILLS - 0.01 MG - HD	98016	No	Storage	-	-	Active
17314 WOODLAND HILLS - 0.02 MG - HD	98017	No	Storage	-	-	Active
17314 WOODLAND HILLS- 0.286 MG - GR	98018	No	Storage	-	-	Active
17314 WOODLAND HILLS - 0.280 MG - GR	98019	No	Storage	-	-	Active
4901 CONFER RIDGE WAY - 1200 GPM - SP	126368	No	Storage	-	-	Inactive
PLANT - 4901 1/2 CONIFER RIDGE WAY	107775	No	Treatment Plant	-	-	Active
WOODLAND HILLS	11534	No	Treatment Plant	-	-	Active
CHLORINATOR	2294	No	Treatment Plant	-	-	Inactive

1 - 31 of 31

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PLANT - 4901 1/2 CONIFER RIDGE WAY	107775	Gaseous Chlorination, Pre	Disinfection
WOODLAND HILLS	11534	Gaseous Chlorination, Pre	Disinfection
WOODLAND HILLS	11534	Sequestration	Iron removal

1 - 3 of 3

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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