Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MO6024293
PWS Name	JEFFERSON COUNTY PWSD 2
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	16548
County Served	Jefferson

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 of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	352116	Returned to Compliance	01-JAN-2025	31-JAN-2025	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	352117	Returned to Compliance	01-JAN-2025	31-JAN-2025	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	352118	Returned to Compliance	01-JAN-2025	31-JAN-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	352115	Returned to Compliance	01-JAN-2025	31-JAN-2025	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	351308	Known	01-MAY-2008	31-MAY-2008	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	351003	Returned to Compliance	01-JUL-2002	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	589	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	6V89	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	689	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	789	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	7V89	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	889	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	8V89	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	5V89	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	4V89	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	489	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	3V89	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	389	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	10V89	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	989	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1089	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	9V89	Returned to Compliance	01-OCT-1988	31-DEC-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	2088	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	13V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1388	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1488	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	14V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	15V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1588	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1688	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	16V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	17V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1788	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1888	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	18V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	19V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	20V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	1988	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	350884	Known	01-JAN-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
1325	352117	SOX	State Compliance achieved	06-MAY-2025	State	SOX vios per EPA RTC Policy. LJZ 5/6/2025
1325	352118	SOX	State Compliance achieved	06-MAY-2025	State	SOX vios per EPA RTC Policy. LJZ 5/6/2025
1325	352116	SOX	State Compliance achieved	06-MAY-2025	State	SOX vios per EPA RTC Policy. LJZ 5/6/2025
1325	352115	SOX	State Compliance achieved	06-MAY-2025	State	SOX vios per EPA RTC Policy. LJZ 5/6/2025
1308	351308	SIF	State Public Notification received	04-AUG-2008	State	-
1004	351003	SOX	State Compliance achieved	04-AUG-2004	State	-
888	589	SOX	State Compliance achieved	07-JUN-1990	State	-
888	889	SOX	State Compliance achieved	07-JUN-1990	State	-
888	989	SOX	State Compliance achieved	07-JUN-1990	State	-
888	1089	SOX	State Compliance achieved	07-JUN-1990	State	-
888	1388	SOX	State Compliance achieved	07-JUN-1990	State	-
888	1488	SOX	State Compliance achieved	07-JUN-1990	State	-
888	1588	SOX	State Compliance achieved	07-JUN-1990	State	-
888	1688	SOX	State Compliance achieved	07-JUN-1990	State	-
888	1788	SOX	State Compliance achieved	07-JUN-1990	State	-
888	1888	SOX	State Compliance achieved	07-JUN-1990	State	-
888	1988	SOX	State Compliance achieved	07-JUN-1990	State	-
888	2088	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	3V89	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	4V89	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	5V89	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	6V89	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	7V89	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	8V89	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	9V89	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	10V89	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	13V88	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	14V88	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	15V88	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	16V88	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	17V88	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	18V88	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	19V88	SOX	State Compliance achieved	07-JUN-1990	State	-
8E88	20V88	SOX	State Compliance achieved	07-JUN-1990	State	-
888	489	SOX	State Compliance achieved	07-JUN-1990	State	-
888	389	SOX	State Compliance achieved	07-JUN-1990	State	-
888	689	SOX	State Compliance achieved	07-JUN-1990	State	-
888	789	SOX	State Compliance achieved	07-JUN-1990	State	-
484	350884	SIE	State Public Notification requested	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
CC 1 MO AMER STL CITY STL CO MO6010716	108711	Yes	Consecutive Connection	Surface water	Emergency	Active
WELL #1	106580	Yes	Well	Ground water	Permanent	Active
BIG RIVER	85075	Yes	Reservoir	Surface water	Permanent	Active
BIG RIVER	85076	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	88077	No	Distribution System/Zone	-	-	Active
SUGAR CREEK PUMP STATION	105098	No	Pump Facility	-	-	Active
KMART PUMP STATION	105099	No	Pump Facility	-	-	Active
CHEMICAL SAMPLES	92930	No	Sampling Station	-	-	Active
1M GAL HIGH RIDGE HYDROPILLAR	100154	No	Storage	-	-	Active
2M GAL HIGH RIDGE GROUND RESERVOIR	100155	No	Storage	-	-	Active
250K GAL HIGH RIDGE ELEVED SPHEROID	100156	No	Storage	-	-	Active
845K GAL OLD SUGAR CREEK RD TOWER	100157	No	Storage	-	-	Active
TOTAL STORAGE	76996	No	Storage	-	-	Inactive
WELL #1 TREATMENT PLANT	107650	No	Treatment Plant	-	-	Active
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL #1 TREATMENT PLANT	107650	Chloramines	Disinfection by-products control
WELL #1 TREATMENT PLANT	107650	Fluoridation	Other
WELL #1 TREATMENT PLANT	107650	Inhibitor, Polyphosphate	Corrosion control
WELL #1 TREATMENT PLANT	107650	Inhibitor, Orthophosphate	Corrosion control
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Sequestration	Iron removal
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Activated Carbon, Powdered	Taste / odor control
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Chloramines	Disinfection
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Ultraviolet Radiation	Disinfection
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Chloramines	Disinfection by-products control
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Inhibitor, Orthophosphate	Corrosion control
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Inhibitor, Polyphosphate	Corrosion control
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Coagulation	Particulate removal
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Sedimentation	Particulate removal
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Filtration, Rapid Sand	Particulate removal
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Lime - Soda Ash Addition	Softening (hardness removal)
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Flocculation	Softening (hardness removal)
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Sedimentation	Softening (hardness removal)
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Gaseous Chlorination, Post	Disinfection
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	Gaseous Chlorination, Pre	Disinfection
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	pH Adjustment, Post	Corrosion control
JEFFERSON CO PWSD #2 - TREATMENT PLANT	67271	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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