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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	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4023801	Known	01-APR-2001	30-APR-2001	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2448793	Returned to Compliance	01-JUL-1993	30-SEP-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2448693	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	2503593	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	2503293	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	2503893	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	2503493	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2448593	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	2503193	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	193	Returned to Compliance	01-JUL-1992	16-JUL-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	1082581	Known	24-JUN-1980	23-JUN-1981	No

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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
1051193	2503193	SOX	State Compliance achieved	03-OCT-1994	State	-
1051193	2503593	SOX	State Compliance achieved	03-OCT-1994	State	-
1051193	2503493	SOX	State Compliance achieved	03-OCT-1994	State	-
1051193	2448793	SOX	State Compliance achieved	03-OCT-1994	State	-
1051193	2503893	SOX	State Compliance achieved	03-OCT-1994	State	-
1051193	2503293	SOX	State Compliance achieved	03-OCT-1994	State	-
194	193	EOX	Federal Compliance achieved	16-JUL-1993	ODSWeb	-
891793	2448693	SOX	State Compliance achieved	10-JUL-1993	State	-
891693	2448593	SOX	State Compliance achieved	10-APR-1993	State	-

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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
SC3710004 CITY OF WALHALLA (P37121)	18435	Yes	Consecutive Connection	Surface water	Emergency	Inactive
LAKE KEOWEE (S37101)	9118	Yes	Intake	Surface water	Permanent	Active
SC3710004 CITY OF WALHALLA (P37122)	18436	Yes	Consecutive Connection	Surface water	Emergency	Inactive
SC3710004 CITY OF WALHALLA (P37123)	18437	Yes	Consecutive Connection	Surface water	Emergency	Inactive
SC3710003 CITY OF WESTMINSTER (P37124)	18438	Yes	Consecutive Connection	Surface water	Emergency	Inactive
DISTRIBUTION	10681	No	Distribution System/Zone	-	-	Active
SENECA WATER PLANT (A37003)	7958	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
SENECA WATER PLANT (A37003)	7958	pH Adjustment, Post	Corrosion control
SENECA WATER PLANT (A37003)	7958	Inhibitor, Polyphosphate	Corrosion control
SENECA WATER PLANT (A37003)	7958	Sedimentation	Particulate removal
SENECA WATER PLANT (A37003)	7958	Rapid Mix	Particulate removal
SENECA WATER PLANT (A37003)	7958	Flocculation	Particulate removal
SENECA WATER PLANT (A37003)	7958	Filtration, Rapid Sand	Particulate removal
SENECA WATER PLANT (A37003)	7958	Coagulation	Particulate removal
SENECA WATER PLANT (A37003)	7958	Gaseous Chlorination, Pre	Disinfection
SENECA WATER PLANT (A37003)	7958	Gaseous Chlorination, Post	Disinfection
SENECA WATER PLANT (A37003)	7958	Fluoridation	Other
SENECA WATER PLANT (A37003)	7958	pH Adjustment, Pre	Particulate removal
SENECA WATER PLANT (A37003)	7958	Sludge Treatment	Particulate removal

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