Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	VA2079590
PWS Name	MOUNTAIN LAKES WATER COMPANY
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	2304
County Served	Greene

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
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6795	Open	04-MAY-2025	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6796	Open	24-AUG-2024	-	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6788	Open	13-JUL-2024	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6794	Open	13-JUL-2024	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	6783	Returned to Compliance	06-JUN-2024	-	Yes
RPT	Reporting, Assessment Forms (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	6781	Returned to Compliance	05-SEP-2023	-	No
TT	Treatment Technique, Level 1 Assessment (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	6780	Returned to Compliance	25-AUG-2023	-	Yes
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	6775	Returned to Compliance	07-JUL-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	6774	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	6756	Returned to Compliance	01-AUG-2022	31-AUG-2022	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	6766	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	6761	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	6767	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	6759	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	6771	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	6769	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	6772	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	6765	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	6764	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	6763	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	6736	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	6735	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	6734	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	6733	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	6732	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	6731	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	6730	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	6729	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	6728	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	6727	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	6726	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	6737	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	6739	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	6740	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	6741	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	6742	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	6743	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	6744	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	6745	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	6746	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	6725	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	6738	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	6724	Returned to Compliance	27-JUL-2018	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	6723	Returned to Compliance	01-JAN-2018	31-MAR-2018	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	6750	Returned to Compliance	01-JAN-2017	31-DEC-2019	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6715	Returned to Compliance	24-APR-2014	-	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	6713	Returned to Compliance	01-FEB-2014	28-FEB-2014	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6712	Returned to Compliance	01-FEB-2014	28-FEB-2014	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	6711	Returned to Compliance	12-SEP-2013	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	6710	Returned to Compliance	01-SEP-2013	30-SEP-2013	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
264943	6788	SIE	State Public Notification requested	09-SEP-2025	State	-
264957	6794	SIE	State Public Notification requested	03-APR-2025	State	-
264907	6780	SOX	State Compliance achieved	15-DEC-2024	State	-
264931	6783	SIE	State Public Notification requested	24-JUL-2024	State	-
264878	6769	SOX	State Compliance achieved	18-MAR-2024	State	-
264884	6771	SOX	State Compliance achieved	18-MAR-2024	State	-
264887	6772	SOX	State Compliance achieved	18-MAR-2024	State	-
264872	6767	SOX	State Compliance achieved	18-MAR-2024	State	-
264848	6759	SOX	State Compliance achieved	18-MAR-2024	State	-
264869	6766	SOX	State Compliance achieved	18-MAR-2024	State	-
264866	6765	SOX	State Compliance achieved	18-MAR-2024	State	-
264863	6764	SOX	State Compliance achieved	18-MAR-2024	State	-
264860	6763	SOX	State Compliance achieved	18-MAR-2024	State	-
264854	6761	SOX	State Compliance achieved	18-MAR-2024	State	-
264912	6781	SIF	State Public Notification received	02-JAN-2024	State	-
264899	6775	SOX	State Compliance achieved	05-DEC-2023	State	-
264895	6774	SIE	State Public Notification requested	06-SEP-2023	State	-
264927	6756	SIF	State Public Notification received	03-JUL-2023	State	-
264893	6731	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6738	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6739	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6740	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6741	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6742	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6743	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6744	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6745	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6746	SIF	State Public Notification received	21-MAY-2020	State	-
264890	6747	SIF	State Public Notification received	21-MAY-2020	State	-
264891	6748	SIF	State Public Notification received	21-MAY-2020	State	-
264892	6750	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6734	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6735	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6736	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6737	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6726	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6727	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6728	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6729	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6730	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6733	SIF	State Public Notification received	21-MAY-2020	State	-
264893	6732	SIF	State Public Notification received	21-MAY-2020	State	-
264840	6723	SIF	State Public Notification received	21-JUN-2019	State	-
264826	6725	SIE	State Public Notification requested	27-FEB-2019	State	-
264823	6724	SIF	State Public Notification received	29-OCT-2018	State	-
264792	6711	SOX	State Compliance achieved	27-JUN-2014	State	-
264801	6715	SOX	State Compliance achieved	27-JUN-2014	State	-
264798	6713	SOX	State Compliance achieved	26-MAR-2014	State	-
264795	6712	SOX	State Compliance achieved	26-MAR-2014	State	-
264789	6710	SOX	State Compliance achieved	29-OCT-2013	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
DURHAM WELL 4 (ABANDONED)	9229	Yes	Well	Ground water	Other	Inactive
GML WELL 1	9232	Yes	Well	Ground water	Permanent	Inactive
DURHAM WELL 1	9226	Yes	Well	Ground water	Permanent	Inactive
LAWSON FARM WELL 1	36260	Yes	Well	Ground water	Permanent	Inactive
ELLIOTT WELL	35420	Yes	Well	Ground water	Permanent	Inactive
GML 215 WELL 2	33263	Yes	Well	Ground water	Permanent	Inactive
GML WELL 1A	32715	Yes	Well	Ground water	Permanent	Inactive
GML WELL 3	32520	Yes	Well	Ground water	Permanent	Inactive
TWIN LAKES D2 WL1	26857	Yes	Well	Ground water	Permanent	Inactive
TWIN LAKES Q4 WL1	26856	Yes	Well	Ground water	Permanent	Inactive
TWIN LAKES B21 WL1	9237	Yes	Well	Ground water	Permanent	Active
TWIN LAKES Q3 WL3	9236	Yes	Well	Ground water	Permanent	Active
TWIN LAKES Q3 WL2	9235	Yes	Well	Ground water	Permanent	Active
GML WELL 2	9234	Yes	Well	Ground water	Permanent	Active
TWIN LAKES Q3 WL1	9233	Yes	Well	Ground water	Permanent	Active
STANARDSVILLE RN1	9231	Yes	Well	Ground water	Permanent	Active
DURHAM WELL 3	9228	Yes	Well	Ground water	Permanent	Active
DURHAM WELL 2	9227	Yes	Well	Ground water	Permanent	Active
WESTWOOD WELL 1	36457	Yes	Well	Ground water	Permanent	Active
TWIN LAKES Q4 WL2	32210	Yes	Well	Ground water	Permanent	Active
GML 215 WELL 1	26855	Yes	Well	Ground water	Permanent	Active
BLUE RUN WL 2	26854	Yes	Well	Ground water	Permanent	Active
BLUE RUN WL 1	26853	Yes	Well	Ground water	Permanent	Active
STANARDSVILLE RN2	19466	Yes	Well	Ground water	Permanent	Active
DURHAM WELL 6	19425	Yes	Well	Ground water	Permanent	Active
DURHAM WELL 5	19424	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	23574	No	Distribution System/Zone	-	-	Active
EP WELL 2 GML	18554	No	Sampling Station	-	-	Active
EP WELL B-21 TL	18555	No	Sampling Station	-	-	Active
EP COMBINED WELLS Q-3/Q-4	18556	No	Sampling Station	-	-	Active
EP COMBINED STANARDSVILLE	18560	No	Sampling Station	-	-	Active
EP COMBINED DURHAM WELLS	18561	No	Sampling Station	-	-	Active
EP COMBINED BLUE RUN WELLS	31935	No	Sampling Station	-	-	Active
EP GML WELL 215	31936	No	Sampling Station	-	-	Active
EP WESTWOOD WELL	38990	No	Sampling Station	-	-	Active
EP WELL 1/1A GML (OFFLINE)	18553	No	Sampling Station	-	-	Inactive
EP TWIN LAKES WELL D-2	31937	No	Sampling Station	-	-	Inactive
108,000 GAL STANDPIPE TANK	16890	No	Storage	-	-	Active
Q-3 TANK 1 - 9550 GALLONS	16891	No	Storage	-	-	Active
Q-3 TANK 2 - 9370 GALLONS	16893	No	Storage	-	-	Active
Q-3 HYDRO TANK - 6000 GALLONS	16894	No	Storage	-	-	Active
Q-3 TANK 3 - 20000 GALLONS	39555	No	Storage	-	-	Active
BLUE RUN CHLORINE & SEQUESTER	33955	No	Treatment Plant	-	-	Active
STANARDSVILLE RUN CHLORINE & SEQUESTER	33956	No	Treatment Plant	-	-	Active
GML 215 CHLORINE & SEQUESTER	33958	No	Treatment Plant	-	-	Active
DURHAM COMBINED CHLORINATOR	33959	No	Treatment Plant	-	-	Active
WESTWOOD SEQUESTER AND CHLORINE	38991	No	Treatment Plant	-	-	Active
TP B21 CHLORINATION	41910	No	Treatment Plant	-	-	Active
TWIN LAKES Q3/Q4 CHLORINATOR	9238	No	Treatment Plant	-	-	Active
GML WELL 1/1A CHLORINATOR	31116	No	Treatment Plant	-	-	Inactive

1 - 50 of 53

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
GML WELL 1/1A CHLORINATOR	31116	Hypochlorination, Post	Disinfection
BLUE RUN CHLORINE & SEQUESTER	33955	Sequestration	Iron removal
BLUE RUN CHLORINE & SEQUESTER	33955	Sequestration	Manganese removal
BLUE RUN CHLORINE & SEQUESTER	33955	Hypochlorination, Post	Disinfection
STANARDSVILLE RUN CHLORINE & SEQUESTER	33956	Sequestration	Iron removal
STANARDSVILLE RUN CHLORINE & SEQUESTER	33956	Sequestration	Manganese removal
STANARDSVILLE RUN CHLORINE & SEQUESTER	33956	Hypochlorination, Post	Disinfection
GML 215 CHLORINE & SEQUESTER	33958	Sequestration	Iron removal
GML 215 CHLORINE & SEQUESTER	33958	Sequestration	Manganese removal
GML 215 CHLORINE & SEQUESTER	33958	Hypochlorination, Post	Disinfection
DURHAM COMBINED CHLORINATOR	33959	Hypochlorination, Post	Disinfection
DURHAM #1 SEQUESTERING	36458	Sequestration	Manganese removal
DURHAM #1 SEQUESTERING	36458	Sequestration	Iron removal
DURHAM #5 SEQUESTERING	36459	Sequestration	Manganese removal
DURHAM #5 SEQUESTERING	36459	Sequestration	Iron removal
WESTWOOD SEQUESTER AND CHLORINE	38991	Sequestration	Manganese removal
WESTWOOD SEQUESTER AND CHLORINE	38991	Sequestration	Iron removal
WESTWOOD SEQUESTER AND CHLORINE	38991	Hypochlorination, Post	Disinfection
TP B21 CHLORINATION	41910	Hypochlorination, Post	Disinfection
TWIN LAKES Q3/Q4 CHLORINATOR	9238	Hypochlorination, Pre	Disinfection

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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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