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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.

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Violations

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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	619	Returned to Compliance	24-MAY-2017	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	617	Returned to Compliance	01-OCT-2015	30-SEP-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	618	Returned to Compliance	01-OCT-2015	30-SEP-2016	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	615	Returned to Compliance	20-FEB-2014	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	614	Returned to Compliance	01-JAN-2012	31-DEC-2012	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	616	Returned to Compliance	01-JAN-2011	31-DEC-2011	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	611	Returned to Compliance	01-OCT-2008	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	612	Returned to Compliance	24-SEP-2008	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	608	Returned to Compliance	01-MAY-2008	31-MAY-2008	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	508	Returned to Compliance	01-APR-2008	30-APR-2008	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	408	Returned to Compliance	01-MAR-2008	31-MAR-2008	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	204	Returned to Compliance	01-APR-2004	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	104	Returned to Compliance	01-DEC-2003	31-DEC-2003	No

• 1 - 13 of 13

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
20110132	615	SO0	State no longer subject to Rule	15-MAR-2018	State	Due to a rule update of 30TAC290.106(e) on 3/30/2017 this violation is no longer subject to the rule under which it was issued.
20110130	619	SOX	State Compliance achieved	04-AUG-2017	State	-
20110131	618	SIF	State Public Notification received	04-AUG-2017	State	-
20110131	617	SIF	State Public Notification received	04-AUG-2017	State	-
20110124	614	SOX	State Compliance achieved	19-MAY-2014	State	05/19/2014; NBROWN; ERP REVIEW
20110124	616	SOX	State Compliance achieved	19-MAY-2014	State	05/19/2014; NBROWN; ERP REVIEW
20110120	204	SOX	State Compliance achieved	20-JAN-2011	State	Administrative Cleanup - RTC Via MTS January 2011. PN Violations RTCd if originating violation was RTC.
908	508	SIE	State Public Notification requested	02-JUL-2008	State	-
708	408	SIE	State Public Notification requested	25-JUN-2008	State	-
912	608	SOX	State Compliance achieved	31-MAY-2008	State	AUTOMATIC RETURN TO COMPLIANCE 05/26/2010
911	611	SOX	State Compliance achieved	30-APR-2008	State	AUTOMATIC RETURN TO COMPLIANCE 05/26/2010
910	612	SOX	State Compliance achieved	31-MAR-2008	State	AUTOMATIC RETURN TO COMPLIANCE 05/26/2010
304	104	SIA	State Violation/Reminder Notice	07-MAR-2004	State	SECOND (REMINDER) NOV SENT INFORMING SYSTEM TCEQ HAS NOT RECEIVED CERTIFICATION OF PUBLIC NOTICE. DEFAULT DATE, CHECK FILE FOR ACTUAL DATE OF NOV LETTER.

• 1 - 13 of 13

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CINCO MUD 1 GW	34843	Yes	Consecutive Connection	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	40334	No	Distribution System/Zone	-	-	Active
3203 MARKSTONE CRK; KATY	134863	No	Sampling Station	-	-	Active
3203 MARKSTONE CRK, KATY	50890	No	Sampling Station	-	-	Active
OPEN I/C	62736	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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