Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	VA6107350
PWS Name	LOUDOUN WATER - CENTRAL SYSTEM
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	334808
County Served	Loudoun

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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	6995610	Returned to Compliance	01-OCT-2023	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	#0999996	Returned to Compliance	01-JAN-2009	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	6995302	Returned to Compliance	01-JUL-2001	31-DEC-2001	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6346694	Known	01-DEC-1993	31-DEC-1993	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6040293	Known	01-FEB-1993	28-FEB-1993	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	6005385	Known	01-DEC-1984	30-NOV-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	6005486	Known	01-DEC-1984	30-NOV-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	6005285	Known	01-DEC-1984	30-NOV-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	6005085	Known	01-DEC-1984	30-NOV-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	6004885	Known	01-DEC-1984	30-NOV-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	6004985	Known	01-DEC-1984	30-NOV-1987	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	6994685	Known	01-DEC-1984	30-NOV-1987	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	6004785	Known	01-DEC-1984	30-NOV-1987	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
203512	6995610	SIF	State Public Notification received	01-JUL-2024	State	-
#1024301	#0999996	EOX	Federal Compliance achieved	02-DEC-2011	ODSWeb	-
202702	6995302	SOX	State Compliance achieved	30-JUN-2002	State	-
494	6346694	SIF	State Public Notification received	24-FEB-1994	State	-
193	6040293	SIF	State Public Notification received	19-APR-1993	State	-
3E86	6005486	SFJ	State Formal Notice of Violation issued	30-SEP-1986	State	-
3E85	6994685	SFJ	State Formal Notice of Violation issued	30-SEP-1985	State	-
3E85	6005285	SFJ	State Formal Notice of Violation issued	30-SEP-1985	State	-
3E85	6005085	SFJ	State Formal Notice of Violation issued	30-SEP-1985	State	-
3E85	6004985	SFJ	State Formal Notice of Violation issued	30-SEP-1985	State	-
3E85	6004885	SFJ	State Formal Notice of Violation issued	30-SEP-1985	State	-
3E85	6004785	SFJ	State Formal Notice of Violation issued	30-SEP-1985	State	-
3E85	6005385	SFJ	State Formal Notice of Violation issued	30-SEP-1985	State	-

1 - 13 of 13

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
SOUTH RIDING CONSECUTIVE CONNECTION	31472	Yes	Consecutive Connection	Surface water	Permanent	Active
POTOMAC RIVER INTAKE	39236	Yes	Intake	Surface water	Permanent	Active
GOOSE CREEK	36921	Yes	Intake	Surface water	Emergency	Active
BROCKMAN CONSECUTIVE CONNECTION	31473	Yes	Consecutive Connection	Surface water	Permanent	Active
CORBALIS CONSECUTIVE CONNECTION	31474	Yes	Consecutive Connection	Surface water	Permanent	Active
HOLLY KNOLLS CONSECUTIVE CONNECTION	31475	Yes	Consecutive Connection	Surface water	Permanent	Active
HIDDEN BROOK CONSECUTIVE CONNECTION	31476	Yes	Consecutive Connection	Surface water	Permanent	Active
WOODSTONE 1 & 2 CONSECUTIVE CONNECT	4319	Yes	Consecutive Connection	Surface water	Permanent	Active
GOOSE CREEK CONSECUTIVE CONNECTION	21241	Yes	Consecutive Connection	Surface water	Permanent	Inactive
ASHBURN CONSECUTIVE CONNECTION	31468	Yes	Consecutive Connection	Surface water	Permanent	Inactive
BEAUMEADE CONSECUTIVE CONNECTION	31469	Yes	Consecutive Connection	Surface water	Permanent	Inactive
SULLY CONSECUTIVE CONNECTION	31470	Yes	Consecutive Connection	Surface water	Permanent	Inactive
STERLING CONSECUTIVE CONNECTION	31471	Yes	Consecutive Connection	Surface water	Permanent	Inactive
LW DISTRIBUTION SYSTEM	14364	No	Distribution System/Zone	-	-	Active
STERLING BOOSTER PUMP STATION	31477	No	Pump Facility	-	-	Active
LANDFILL BOOSTER STATION	31479	No	Pump Facility	-	-	Active
BROADLAND BOOSTER PUMP STATION	31480	No	Pump Facility	-	-	Active
BRAMBLETON BOOSTER PUMP STATION	31481	No	Pump Facility	-	-	Active
ROUTE 50 BOOSTER PUMP STATION	32558	No	Pump Facility	-	-	Active
DULLES SOUTH BOOSTER PUMP STATION	36414	No	Pump Facility	-	-	Active
ROUTE 50 TEMPORARY BOOSTER STATION	31478	No	Pump Facility	-	-	Inactive
LENAH TEMPORARY BPS	35435	No	Pump Facility	-	-	Inactive
LENAH FARMS BOOSTER PUMP STATION	37460	No	Pump Facility	-	-	Inactive
GOOSE CREEK WTF ENTRY POINT	36920	No	Sampling Station	-	-	Active
RAW WATER TOC ALK	38544	No	Sampling Station	-	-	Active
TRAP ROCK WTF ENTRY POINT - POTOMAC INT.	39219	No	Sampling Station	-	-	Active
RAW WATER TOC ALK	39237	No	Sampling Station	-	-	Active
TRAP ROCK WTF ENTRY POINT - GOOSE INTAKE	42347	No	Sampling Station	-	-	Active
FAIRFAX WATER ENTRY POINT - WOODSTONE	35916	No	Sampling Station	-	-	Inactive
FAIRFAX CITY ENTRY POINT - GOOSE CK WTP	35917	No	Sampling Station	-	-	Inactive
ROUTE 50 ENTRY POINT	38506	No	Sampling Station	-	-	Inactive
STERLING BLVD STANDPIPE	31461	No	Storage	-	-	Active
BROADLANDS ELEVATED STORAGE TANK #1	31462	No	Storage	-	-	Active
BROADLANDS ELEVATED STORAGE TANK #2	31463	No	Storage	-	-	Active
BRAMBLETON ELEVATED STORAGE TANK #1	31464	No	Storage	-	-	Active
BRAMBLETON ELEVATED STORAGE TANK #2	31465	No	Storage	-	-	Active
DULLES SOUTH TANK #1	36206	No	Storage	-	-	Active
DULLES SOUTH TANK #2	36207	No	Storage	-	-	Active
600 ZONE TANK	40517	No	Storage	-	-	Active
LENAH FARMS HYDROPNEUMATIC TANK	37461	No	Storage	-	-	Inactive
TRAP ROCK WTP	39208	No	Treatment Plant	-	-	Active
LANDFILL RECHLORINATION	31482	No	Treatment Plant	-	-	Inactive
LENAH TEMPORARY BPS RECHLORINATION	35436	No	Treatment Plant	-	-	Inactive
GOOSE CREEK WTF	36922	No	Treatment Plant	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
LANDFILL RECHLORINATION	31482	Hypochlorination, Post	Disinfection
LENAH TEMPORARY BPS RECHLORINATION	35436	Hypochlorination, Post	Disinfection
GOOSE CREEK WTF	36922	Sedimentation	Particulate removal
GOOSE CREEK WTF	36922	Sedimentation	Particulate removal
GOOSE CREEK WTF	36922	Filtration, Rapid Sand	Particulate removal
GOOSE CREEK WTF	36922	Filtration, Rapid Sand	Particulate removal
GOOSE CREEK WTF	36922	Filtration, Rapid Sand	Particulate removal
GOOSE CREEK WTF	36922	Filtration, Rapid Sand	Particulate removal
GOOSE CREEK WTF	36922	Filtration, Rapid Sand	Particulate removal
GOOSE CREEK WTF	36922	Filtration, Rapid Sand	Particulate removal
GOOSE CREEK WTF	36922	Filtration, Rapid Sand	Particulate removal
GOOSE CREEK WTF	36922	pH Adjustment, Post	Corrosion control
GOOSE CREEK WTF	36922	Inhibitor, Orthophosphate	Corrosion control
GOOSE CREEK WTF	36922	Hypochlorination, Post	Disinfection
GOOSE CREEK WTF	36922	Fluoridation	Other
GOOSE CREEK WTF	36922	Chloramines	Disinfection
TRAP ROCK WTP	39208	Rapid Mix	Particulate removal
TRAP ROCK WTP	39208	Rapid Mix	Particulate removal
TRAP ROCK WTP	39208	Flocculation	Particulate removal
TRAP ROCK WTP	39208	Flocculation	Particulate removal
TRAP ROCK WTP	39208	Flocculation	Particulate removal
TRAP ROCK WTP	39208	Flocculation	Particulate removal
TRAP ROCK WTP	39208	Flocculation	Particulate removal
TRAP ROCK WTP	39208	Flocculation	Particulate removal
TRAP ROCK WTP	39208	Flocculation	Particulate removal
TRAP ROCK WTP	39208	Flocculation	Particulate removal
TRAP ROCK WTP	39208	Sedimentation	Particulate removal
TRAP ROCK WTP	39208	Sedimentation	Particulate removal
TRAP ROCK WTP	39208	Sedimentation	Particulate removal
TRAP ROCK WTP	39208	Sedimentation	Particulate removal
TRAP ROCK WTP	39208	Ozonation, Pre	Organics removal
TRAP ROCK WTP	39208	Ozonation, Pre	Organics removal
TRAP ROCK WTP	39208	Ozonation, Post	Disinfection by-products control
TRAP ROCK WTP	39208	Ozonation, Post	Disinfection by-products control
TRAP ROCK WTP	39208	Filtered	Particulate removal
TRAP ROCK WTP	39208	Filtered	Particulate removal
TRAP ROCK WTP	39208	Filtered	Particulate removal
TRAP ROCK WTP	39208	Filtered	Particulate removal
TRAP ROCK WTP	39208	Filtered	Particulate removal
TRAP ROCK WTP	39208	Filtered	Particulate removal
TRAP ROCK WTP	39208	Ultraviolet Radiation	Disinfection by-products control
TRAP ROCK WTP	39208	Hypochlorination, Post	Disinfection
TRAP ROCK WTP	39208	Hypochlorination, Post	Disinfection
TRAP ROCK WTP	39208	Fluoridation	Other
TRAP ROCK WTP	39208	Filtration, Rapid Sand	Particulate removal
TRAP ROCK WTP	39208	Ozonation, Pre	Disinfection by-products control
TRAP ROCK WTP	39208	Ozonation, Pre	Disinfection by-products control

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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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