Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	TX1010379
PWS Name	MASON CREEK UTILITY DISTRICT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	8900
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
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	70035837	Returned to Compliance	30-DEC-2019	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035835	Returned to Compliance	01-APR-2017	30-JUN-2017	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	70035834	Returned to Compliance	08-FEB-2016	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	70035830	Returned to Compliance	01-OCT-2015	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	70035825	Returned to Compliance	12-FEB-2014	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	70035824	Returned to Compliance	30-DEC-2013	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035827	Returned to Compliance	01-OCT-2013	31-DEC-2013	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035823	Returned to Compliance	01-APR-2013	30-JUN-2013	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	70035826	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035821	Returned to Compliance	01-JAN-2007	31-MAR-2007	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035820	Returned to Compliance	01-OCT-2006	31-DEC-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035810	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035809	Returned to Compliance	01-APR-2006	30-JUN-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035819	Returned to Compliance	01-JAN-2006	31-MAR-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035818	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035816	Returned to Compliance	01-JUL-2005	30-SEP-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035817	Returned to Compliance	01-APR-2005	30-JUN-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035815	Returned to Compliance	01-JAN-2005	31-MAR-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035814	Returned to Compliance	01-OCT-2004	31-DEC-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035813	Returned to Compliance	01-JUL-2004	30-SEP-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035812	Returned to Compliance	01-APR-2004	30-JUN-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	70035811	Returned to Compliance	01-JAN-2004	31-MAR-2004	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1029593	Known	01-NOV-1992	30-NOV-1992	Yes
Other	Notification, Public	Total Coliform Rule	Coliform (TCR)	1029693	Known	01-NOV-1992	30-NOV-1992	No
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 - 25 of 25

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
70077351	70035837	SOX	State Compliance achieved	10-MAR-2020	State	-
70077349	70035835	SIF	State Public Notification received	11-DEC-2017	State	-
70077345	70035830	SOX	State Compliance achieved	21-OCT-2016	State	-
70077342	70035834	SIA	State Violation/Reminder Notice	24-MAR-2016	State	-
70077339	70035827	SOX	State Compliance achieved	17-JUL-2014	State	Submitted first quarter of 2014 DLQOR
70077339	70035823	SOX	State Compliance achieved	17-JUL-2014	State	Submitted first quarter of 2014 DLQOR
70077336	70035825	SOX	State Compliance achieved	27-JUN-2014	State	-
70077335	70035824	SOX	State Compliance achieved	24-JUN-2014	State	-
70077332	70035826	SOX	State Compliance achieved	28-JUN-2012	State	-
70077328	70035816	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035817	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035818	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035819	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035820	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035821	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035815	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035814	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035813	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035812	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035811	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035809	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
70077328	70035810	SOX	State Compliance achieved	09-JUL-2010	State	SDWIS 2010 CLEANUP
193	9999193	SOX	State Compliance achieved	30-JUN-1993	State	-

1 - 23 of 23

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
EMERGENCY GW I/C FROM HARRIS CO MUD 81	116092	Yes	Consecutive Connection	Ground water	Emergency	Active
1 - 810 HOUGHTON	15648	Yes	Well	Ground water	Seasonal	Active
2 - 847 DOMINION DR / PLUGGED	15702	Yes	Well	Ground water	Permanent	Inactive
3 - 1609 GALLEON OAKS	15651	Yes	Well	Ground water	Permanent	Active
5 - 850 DOMINION	15641	Yes	Well	Ground water	Permanent	Active
4 - 810 HOUGHTON	15639	Yes	Well	Ground water	Permanent	Active
EMERGENCY I/C WITH GREEN TRAILS MUD	35061	Yes	Consecutive Connection	Ground water	Emergency	Active
EMERGENCY GW I/C FROM INTERSTATE MUD	35064	Yes	Consecutive Connection	Ground water	Emergency	Active
NOTTINGHAM MUD / CLOSED IC	35062	Yes	Consecutive Connection	Ground water	Other	Inactive
MEMORIAL MUD / CLOSED IC	35063	Yes	Consecutive Connection	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	41049	No	Distribution System/Zone	-	-	Active
847 DOMINION - 500 GPM - SP	127163	No	Pump Facility	-	-	Active
PLT 1, 810 HOUGHTON - 500 GPM - SP	127164	No	Pump Facility	-	-	Active
PLT 3, 1613 GALLEON OAKS - 700 GPM - SP	79308	No	Pump Facility	-	-	Active
PLT 3, 1613 GALLEON OAKS - 700 GPM - SP	79309	No	Pump Facility	-	-	Active
PLT 3, 1613 GALLEON OAKS - 700 GPM - SP	79310	No	Pump Facility	-	-	Active
PLT 3, 1613 GALLEON OAKS - 250 GPM - SP	79311	No	Pump Facility	-	-	Active
PLT 2, 847 DOMINION - 1500 GPM - SP	79312	No	Pump Facility	-	-	Active
PLT 2, 847 DOMINION - 500 GPM - SP	79313	No	Pump Facility	-	-	Active
PLT 1, 810 HOUGHTON - 250 GPM - SP	79314	No	Pump Facility	-	-	Active
PLT 1, 810 HOUGHTON - 500 GPM - SP	79315	No	Pump Facility	-	-	Active
PLT 1, 810 HOUGHTON - 1000 GPM - SP	79316	No	Pump Facility	-	-	Active
PLT 1, 810 HOUGHTON - 1000 GPM - SP	79317	No	Pump Facility	-	-	Active
PLT 1, 810 HOUGHTON - 250 GPM - SP	79318	No	Pump Facility	-	-	Active
PLT 2, 847 DOMINION - 250 GPM - SP	85843	No	Pump Facility	-	-	Active
PLT 2, 847 DOMINION - 250 GPM - SP	85844	No	Pump Facility	-	-	Active
810 HOUGHTON; KATY	135721	No	Sampling Station	-	-	Active
847 DOMINION DR; KATY	135722	No	Sampling Station	-	-	Active
1613 GALLEON OAKS DR; KATY	135723	No	Sampling Station	-	-	Active
847 DOMINION DR, KATY	51969	No	Sampling Station	-	-	Active
1613 GALLEON OAKS DR, KATY	51970	No	Sampling Station	-	-	Active
810 HOUGHTON, KATY	51971	No	Sampling Station	-	-	Active
INTERSTATE MUD / OPEN IC	61950	No	Sampling Station	-	-	Inactive
PLT 3, 1613 GALLEON OAKS - 0.012 MG - HD	97378	No	Storage	-	-	Active
PLT 2, 847 DOMINION - 0.01 MG - HD	97379	No	Storage	-	-	Active
PLT 1, 810 HOUGHTON - 0.01 MG - HD	97380	No	Storage	-	-	Active
PLT 2, 847 DOMINION - 0.5 MG - EL	97381	No	Storage	-	-	Active
PLT 3, 1613 GALLEON OAKS - 0.62 MG - GR	97382	No	Storage	-	-	Active
PLT 3, 1613 GALLEON OAKS - 0.62 MG - GR	97383	No	Storage	-	-	Active
PLT 2, 847 DOMINION - 0.62 MG - GR	97384	No	Storage	-	-	Active
PLT 1, 810 HOUGHTON - 0.46 MG - GR	97385	No	Storage	-	-	Active
PLT 1, 810 HOUGHTON - 0.62 MG - GR	97386	No	Storage	-	-	Active
PLANT - 810 HOUGHTON	1037	No	Treatment Plant	-	-	Active
PLANT - 847 DOMINION	1056	No	Treatment Plant	-	-	Active
PLANT - 1613 GALLEON OAKS	330	No	Treatment Plant	-	-	Active
INTERSTATE MUD / TEMP OPENED IC	11986	No	Treatment Plant	-	-	Inactive

1 - 46 of 46

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PLANT - 810 HOUGHTON	1037	Gaseous Chlorination, Pre	Disinfection
PLANT - 810 HOUGHTON	1037	Inhibitor, Polyphosphate	Corrosion control
PLANT - 810 HOUGHTON	1037	Innovative	Other
PLANT - 847 DOMINION	1056	Gaseous Chlorination, Pre	Disinfection
PLANT - 847 DOMINION	1056	Inhibitor, Polyphosphate	Corrosion control
PLANT - 1613 GALLEON OAKS	330	Inhibitor, Polyphosphate	Corrosion control
PLANT - 1613 GALLEON OAKS	330	Gaseous Chlorination, Pre	Disinfection

1 - 7 of 7

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.

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Nav Menu

Your Drinking Water Query results from SDWIS Fed Reporting Services

Note

PWS Violation

Violations

Column Actions

Enforcement Actions

Enforcement Actions

Column Actions

PWS Facilities

All Facilities

Column Actions

PWS Treatment Processes

Treatment Processes

Column Actions