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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
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3190411	Returned to Compliance	01-OCT-2013	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3190410	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3190412	Returned to Compliance	01-OCT-2011	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3190396	Returned to Compliance	01-JUN-1996	30-JUN-1996	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	2708994	Returned to Compliance	01-JUL-1994	30-SEP-1994	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2535694	Returned to Compliance	01-JAN-1994	31-JAN-1994	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2457793	Returned to Compliance	01-JUL-1993	30-SEP-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2457693	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	2517093	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	2517493	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	2516893	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	2517193	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	2516793	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2457593	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	9999392	Returned to Compliance	01-JAN-1992	17-AUG-1992	No
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	1358990	Known	01-JUN-1987	30-JUN-1987	Yes

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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
1444306	3190412	SIE	State Public Notification requested	08-MAR-2016	State	-
1444302	3190411	SIA	State Violation/Reminder Notice	01-MAR-2016	State	-
1444300	3190410	SIF	State Public Notification received	07-JAN-2014	State	-
1444296	3190396	SOX	State Compliance achieved	10-JAN-1997	State	-
1149594	2535694	SOX	State Compliance achieved	10-JAN-1995	State	-
1101694	2708994	SOX	State Compliance achieved	04-JAN-1995	State	-
900693	2516793	SOX	State Compliance achieved	10-JAN-1994	State	-
900693	2516893	SOX	State Compliance achieved	10-JAN-1994	State	-
900693	2457593	SOX	State Compliance achieved	10-JAN-1994	State	-
900693	2517093	SOX	State Compliance achieved	10-JAN-1994	State	-
900693	2517493	SOX	State Compliance achieved	10-JAN-1994	State	-
900693	2517193	SOX	State Compliance achieved	10-JAN-1994	State	-
900893	2457793	SOX	State Compliance achieved	10-OCT-1993	State	-
900793	2457693	SOX	State Compliance achieved	10-JUL-1993	State	-
192	9999392	SOX	State Compliance achieved	17-AUG-1992	Headquater	ADDED BY FRDS PC/US PER AIS

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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
CATAWBA RIVER (S46109)	9311	Yes	Intake	Surface water	Emergency	Inactive
LAKE WYLIE (S46101)	9310	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION	10988	No	Distribution System/Zone	-	-	Active
ROCK HILL PLANT (A46001)	8202	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
ROCK HILL PLANT (A46001)	8202	Sedimentation	Particulate removal
ROCK HILL PLANT (A46001)	8202	pH Adjustment, Pre	Particulate removal
ROCK HILL PLANT (A46001)	8202	Coagulation	Particulate removal
ROCK HILL PLANT (A46001)	8202	Filtration, Rapid Sand	Particulate removal
ROCK HILL PLANT (A46001)	8202	Flocculation	Particulate removal
ROCK HILL PLANT (A46001)	8202	Rapid Mix	Particulate removal
ROCK HILL PLANT (A46001)	8202	Inhibitor, Polyphosphate	Corrosion control
ROCK HILL PLANT (A46001)	8202	pH Adjustment	Corrosion control
ROCK HILL PLANT (A46001)	8202	Gaseous Chlorination, Post	Disinfection
ROCK HILL PLANT (A46001)	8202	Gaseous Chlorination, Pre	Disinfection
ROCK HILL PLANT (A46001)	8202	Chlorine Dioxide	Disinfection by-products control
ROCK HILL PLANT (A46001)	8202	Fluoridation	Other

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