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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.

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Violations

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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	TTHM	2	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1	Returned to Compliance	01-APR-2009	30-APR-2009	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9610002	Returned to Compliance	01-SEP-1996	30-SEP-1996	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9610003	Returned to Compliance	22-JAN-1996	21-FEB-1996	Yes

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
6	2	SOX	State Compliance achieved	13-NOV-2016	State	-
5	1	SOX	State Compliance achieved	18-MAY-2009	State	ENFORCEMENTID :0944306; LATE REPORT
9610006	9610002	SOX	State Compliance achieved	10-SEP-1996	State	-
9610008	9610003	SOX	State Compliance achieved	01-FEB-1996	State	-

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
POTOMAC RIVER	15409	Yes	Intake	Surface water	Permanent	Active
EDGEMONT RESERVOIR	15436	Yes	Reservoir	Surface water	Permanent	Active
R C WILLSON FILTER PLANT	15827	No	Common Headers	-	-	Active
WILLIAM M BREICHNER WTP	15828	No	Common Headers	-	-	Inactive
DISTRIBUTION SYSTEM	8949	No	Distribution System/Zone	-	-	Active
STORAGE TANK	19238	No	Storage	-	-	Active
R C WILLSON FILTER PLANT	26445	No	Treatment Plant	-	-	Active
WILLIAM M BREICHNER WTP	26446	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
R C WILLSON FILTER PLANT	26445	Gaseous Chlorination, Post	Disinfection
R C WILLSON FILTER PLANT	26445	Gaseous Chlorination, Pre	Disinfection
R C WILLSON FILTER PLANT	26445	pH Adjustment, Post	Corrosion control
R C WILLSON FILTER PLANT	26445	Activated Carbon, Granular	Organics removal
R C WILLSON FILTER PLANT	26445	Coagulation	Organics removal
R C WILLSON FILTER PLANT	26445	Coagulation	Particulate removal
R C WILLSON FILTER PLANT	26445	Filtration, Rapid Sand	Particulate removal
R C WILLSON FILTER PLANT	26445	Flocculation	Particulate removal
R C WILLSON FILTER PLANT	26445	pH Adjustment, Pre	Particulate removal
R C WILLSON FILTER PLANT	26445	Activated Carbon, Granular	Taste / odor control
R C WILLSON FILTER PLANT	26445	Permanganate	Taste / odor control
R C WILLSON FILTER PLANT	26445	Fluoridation	Other
R C WILLSON FILTER PLANT	26445	Chloramines	Disinfection
WILLIAM M BREICHNER WTP	26446	pH Adjustment, Post	Corrosion control
WILLIAM M BREICHNER WTP	26446	Gaseous Chlorination, Post	Disinfection
WILLIAM M BREICHNER WTP	26446	Gaseous Chlorination, Pre	Disinfection
WILLIAM M BREICHNER WTP	26446	Coagulation	Particulate removal
WILLIAM M BREICHNER WTP	26446	Filtration, Rapid Sand	Particulate removal
WILLIAM M BREICHNER WTP	26446	Rapid Mix	Particulate removal
WILLIAM M BREICHNER WTP	26446	Sedimentation	Particulate removal
WILLIAM M BREICHNER WTP	26446	pH Adjustment, Pre	Particulate removal
WILLIAM M BREICHNER WTP	26446	Activated Carbon, Powdered	Taste / odor control
WILLIAM M BREICHNER WTP	26446	Permanganate	Taste / odor control
WILLIAM M BREICHNER WTP	26446	Fluoridation	Other

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