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PWS ID	GA1890001
PWS Name	THOMSON-MCDUFFIE CO W&S COMM
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	21312
County Served	McDuffie

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
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	12979	Known	01-JUL-2025	30-SEP-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12982	Known	01-JUL-2025	30-SEP-2025	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12969	Returned to Compliance	01-JUN-2025	30-JUN-2025	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12971	Known	01-APR-2025	30-JUN-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12963	Known	01-JAN-2025	31-MAR-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12961	Known	01-OCT-2024	31-DEC-2024	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12960	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12957	Returned to Compliance	01-JUL-2024	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12958	Known	01-JUL-2024	30-SEP-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12956	Returned to Compliance	01-APR-2024	30-JUN-2024	Yes
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12952	Returned to Compliance	01-OCT-2023	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12955	Returned to Compliance	01-SEP-2023	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12954	Returned to Compliance	01-JUL-2023	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12951	Returned to Compliance	01-JUL-2023	30-SEP-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12949	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	12953	Returned to Compliance	01-MAR-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	12945	Returned to Compliance	08-DEC-2022	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12943	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12939	Returned to Compliance	01-JUL-2022	30-SEP-2022	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12941	Returned to Compliance	01-JUL-2022	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12937	Returned to Compliance	01-APR-2022	30-JUN-2022	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12934	Returned to Compliance	01-JUL-2021	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12933	Returned to Compliance	01-JUL-2020	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	12987	Known	01-JAN-2017	31-DEC-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	12986	Known	01-JAN-2017	31-DEC-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	12985	Known	01-JAN-2017	31-DEC-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	12988	Known	01-JAN-2017	31-DEC-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	12984	Known	01-JAN-2017	31-DEC-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	12989	Known	01-JAN-2017	31-DEC-2025	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12926	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12924	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12923	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12920	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12922	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12918	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	12917	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	12915	Known	01-JUL-2013	31-JUL-2013	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12811	Returned to Compliance	01-JUL-2011	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	12510	Returned to Compliance	01-OCT-2009	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	12207	Returned to Compliance	01-JUL-2007	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	11504	Returned to Compliance	01-OCT-2003	31-DEC-2003	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	11403	Returned to Compliance	01-JUL-2003	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	11203	Returned to Compliance	01-APR-2003	30-JUN-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	11303	Returned to Compliance	01-APR-2003	30-JUN-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	10903	Returned to Compliance	01-JAN-2003	31-MAR-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	11003	Returned to Compliance	01-JAN-2003	31-MAR-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	10703	Returned to Compliance	01-OCT-2002	31-DEC-2002	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	10803	Returned to Compliance	01-OCT-2002	31-DEC-2002	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	10603	Returned to Compliance	01-OCT-2002	31-DEC-2002	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	10402	Returned to Compliance	01-JUL-2002	-	No

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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
1276533	12979	SIE	State Public Notification requested	22-DEC-2025	State	-
1276539	12982	SIE	State Public Notification requested	22-DEC-2025	State	-
1276530	12971	SIF	State Public Notification received	29-SEP-2025	State	-
1276520	12949	SFO	State Administrative/Compliance Order with penalty issued	08-AUG-2025	State	-
1276520	12951	SFO	State Administrative/Compliance Order with penalty issued	08-AUG-2025	State	-
1276520	12956	SFO	State Administrative/Compliance Order with penalty issued	08-AUG-2025	State	-
1276520	12961	SFO	State Administrative/Compliance Order with penalty issued	08-AUG-2025	State	-
1276520	12963	SFO	State Administrative/Compliance Order with penalty issued	08-AUG-2025	State	-
1276520	12943	SFO	State Administrative/Compliance Order with penalty issued	08-AUG-2025	State	-
1276520	12939	SFO	State Administrative/Compliance Order with penalty issued	08-AUG-2025	State	-
1276520	12937	SFO	State Administrative/Compliance Order with penalty issued	08-AUG-2025	State	-
1276520	12958	SFO	State Administrative/Compliance Order with penalty issued	08-AUG-2025	State	-
1276531	12969	SOX	State Compliance achieved	31-JUL-2025	State	-
1276505	12960	SIF	State Public Notification received	22-APR-2025	State	-
1276488	12957	SII	State Consumer Confidence Report Follow-up Notice	16-OCT-2024	State	-
1276485	12954	SIF	State Public Notification received	28-JUN-2024	State	-
1276486	12955	SIF	State Public Notification received	28-JUN-2024	State	-
1276484	12953	SIF	State Public Notification received	28-JUN-2024	State	-
1276487	12952	SIF	State Public Notification received	28-JUN-2024	State	-
1276455	12945	SIA	State Violation/Reminder Notice	07-FEB-2023	State	-
1276443	12933	SOX	State Compliance achieved	31-JAN-2023	State	-
1276440	12941	SII	State Consumer Confidence Report Follow-up Notice	21-NOV-2022	State	-
1276429	12934	SII	State Consumer Confidence Report Follow-up Notice	16-NOV-2021	State	-
1276423	12920	SOX	State Compliance achieved	08-JUN-2016	State	-
1276423	12924	SOX	State Compliance achieved	08-JUN-2016	State	-
1276423	12926	SOX	State Compliance achieved	08-JUN-2016	State	-
1276423	12923	SOX	State Compliance achieved	08-JUN-2016	State	-
1276422	12922	SIF	State Public Notification received	14-APR-2016	State	-
1276422	12918	SIF	State Public Notification received	14-APR-2016	State	-
1276422	12917	SIF	State Public Notification received	14-APR-2016	State	-
1276416	12915	SIF	State Public Notification received	16-OCT-2013	State	-
1276311	12811	SOX	State Compliance achieved	15-SEP-2011	State	-
1276211	12510	SIF	State Public Notification received	07-JUL-2011	State	-
1275507	12207	SOX	State Compliance achieved	13-JUL-2007	State	-
1275404	11504	SOX	State Compliance achieved	18-MAR-2004	State	-
1275003	11303	SOX	State Compliance achieved	29-AUG-2003	State	-
1275003	11203	SOX	State Compliance achieved	29-AUG-2003	State	-
1274703	11403	SOX	State Compliance achieved	18-AUG-2003	State	-
1274003	11003	SOX	State Compliance achieved	27-MAY-2003	State	-
1274003	10703	SOX	State Compliance achieved	27-MAY-2003	State	-
1274003	10603	SOX	State Compliance achieved	27-MAY-2003	State	-
1274003	10803	SOX	State Compliance achieved	27-MAY-2003	State	-
1274003	10903	SOX	State Compliance achieved	27-MAY-2003	State	-
1272302	10402	SOX	State Compliance achieved	18-JUL-2002	State	-
10096	10096	SIE	State Public Notification requested	30-NOV-1995	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
USRYS POND	13258	Yes	Intake	Surface water	Permanent	Active
CLARKS HILL RESERVOIR	13259	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	13257	No	Distribution System/Zone	-	-	Active
IDSE DISTRIBUTION SYSTEM	20093	No	Distribution System/Zone	-	-	Inactive
THOMSON WATER PLANT	1674	No	Treatment Plant	-	-	Active
BIG CREEK PLANT	3013	No	Treatment Plant	-	-	Active

1 - 6 of 6

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
THOMSON WATER PLANT	1674	Gaseous Chlorination, Pre	Disinfection
THOMSON WATER PLANT	1674	Rapid Mix	Particulate removal
THOMSON WATER PLANT	1674	pH Adjustment, Pre	Particulate removal
THOMSON WATER PLANT	1674	Coagulation	Particulate removal
THOMSON WATER PLANT	1674	Flocculation	Particulate removal
THOMSON WATER PLANT	1674	Sedimentation	Particulate removal
THOMSON WATER PLANT	1674	Filtration, Rapid Sand	Particulate removal
THOMSON WATER PLANT	1674	pH Adjustment, Post	Corrosion control
THOMSON WATER PLANT	1674	Gaseous Chlorination, Post	Disinfection
BIG CREEK PLANT	3013	Gaseous Chlorination, Pre	Disinfection
BIG CREEK PLANT	3013	Rapid Mix	Particulate removal
BIG CREEK PLANT	3013	pH Adjustment, Pre	Particulate removal
BIG CREEK PLANT	3013	Coagulation	Particulate removal
BIG CREEK PLANT	3013	Flocculation	Particulate removal
BIG CREEK PLANT	3013	Sedimentation	Particulate removal
BIG CREEK PLANT	3013	Filtration, Rapid Sand	Particulate removal
BIG CREEK PLANT	3013	pH Adjustment, Post	Corrosion control
BIG CREEK PLANT	3013	Gaseous Chlorination, Post	Disinfection

1 - 18 of 18

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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