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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	SC1010001
PWS Name	CHARLESTON WATER SYSTEM (SC1010001)
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	327422
County Served	Charleston

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	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	2477504	Known	01-JUL-2004	31-JUL-2004	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	4966603	Returned to Compliance	01-OCT-2002	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2465893	Returned to Compliance	01-JUL-1993	30-SEP-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2465793	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	2477493	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	2477193	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2465693	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	2476793	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	2477093	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	2476893	Returned to Compliance	01-JAN-1993	31-JAN-1993	No
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	184	Known	12-JUL-1984	11-JUL-1985	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	45784	Known	01-JUL-1984	30-SEP-1984	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	77984	Known	01-APR-1984	30-JUN-1984	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	186084	Known	01-JAN-1984	31-MAR-1984	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	39584	Known	01-OCT-1983	31-DEC-1983	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
2682903	4966603	SOX	State Compliance achieved	30-SEP-2003	State	-
1045093	2465893	SOX	State Compliance achieved	25-OCT-1994	State	-
1045093	2477493	SOX	State Compliance achieved	25-OCT-1994	State	-
1045093	2477193	SOX	State Compliance achieved	25-OCT-1994	State	-
1045093	2477093	SOX	State Compliance achieved	25-OCT-1994	State	-
1045093	2476893	SOX	State Compliance achieved	25-OCT-1994	State	-
1045093	2476793	SOX	State Compliance achieved	25-OCT-1994	State	-
908893	2465793	SOX	State Compliance achieved	10-JUL-1993	State	-
908793	2465693	SOX	State Compliance achieved	10-APR-1993	State	-
39584	39584	EFJ	Federal issued Formal Notice of Violation	30-SEP-1984	State	-
39584	186084	EFJ	Federal issued Formal Notice of Violation	30-SEP-1984	State	-
39584	77984	EFJ	Federal issued Formal Notice of Violation	30-SEP-1984	State	-
39584	45784	EFJ	Federal issued Formal Notice of Violation	30-SEP-1984	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
FOSTER CREEK (S10102)	8508	Yes	Intake	Surface water	Emergency	Inactive
BUSHY PARK RESERVOIR (S10104)	8510	Yes	Intake	Surface water	Permanent	Active
EDISTO RIVER (S10101)	8507	Yes	Intake	Surface water	Permanent	Active
ASHLEY RIVER	8511	Yes	Intake	Surface water	Emergency	Inactive
GOOSE CREEK RESERVOIR (S10103)	8509	Yes	Intake	Surface water	Emergency	Inactive
DISTRIBUTION	9954	No	Distribution System/Zone	-	-	Active
HANAHAN WATER TREATMENT (A10001)	7156	No	Treatment Plant	-	-	Active

1 - 7 of 7

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
HANAHAN WATER TREATMENT (A10001)	7156	Chlorine Dioxide	Disinfection by-products control
HANAHAN WATER TREATMENT (A10001)	7156	Gaseous Chlorination, Post	Disinfection
HANAHAN WATER TREATMENT (A10001)	7156	Chloramines	Disinfection
HANAHAN WATER TREATMENT (A10001)	7156	pH Adjustment, Post	Corrosion control
HANAHAN WATER TREATMENT (A10001)	7156	Inhibitor, Orthophosphate	Corrosion control
HANAHAN WATER TREATMENT (A10001)	7156	Activated Carbon, Powdered	Taste / odor control
HANAHAN WATER TREATMENT (A10001)	7156	pH Adjustment, Pre	Particulate removal
HANAHAN WATER TREATMENT (A10001)	7156	Sludge Treatment	Particulate removal
HANAHAN WATER TREATMENT (A10001)	7156	Sedimentation	Particulate removal
HANAHAN WATER TREATMENT (A10001)	7156	Rapid Mix	Particulate removal
HANAHAN WATER TREATMENT (A10001)	7156	Flocculation	Particulate removal
HANAHAN WATER TREATMENT (A10001)	7156	Filtration, Rapid Sand	Particulate removal
HANAHAN WATER TREATMENT (A10001)	7156	Coagulation	Particulate removal
HANAHAN WATER TREATMENT (A10001)	7156	Fluoridation	Other

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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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