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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, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	65206	Known	01-JUL-2007	31-JUL-2007	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	65205	Known	01-MAR-2005	31-MAR-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	65004	Returned to Compliance	01-JUL-2004	30-SEP-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	64904	Returned to Compliance	01-JUL-2004	30-SEP-2004	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	64803	Known	01-MAR-2003	31-MAR-2003	Yes
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	64694	Returned to Compliance	01-JAN-1994	07-DEC-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	52593	Known	01-SEP-1993	30-SEP-1993	No

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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
2309	65206	SIF	State Public Notification received	02-AUG-2007	State	-
2306	65004	SOX	State Compliance achieved	08-JUN-2006	State	-
2306	64904	SOX	State Compliance achieved	08-JUN-2006	State	-
2205	65205	SIF	State Public Notification received	28-APR-2005	State	-
1003	64803	SIF	State Public Notification received	01-MAY-2003	State	-
395	64694	SOX	State Compliance achieved	07-DEC-1994	State	-
994	52593	SIF	State Public Notification received	30-OCT-1993	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
CC FROM TRAILL RESERVOIR (RAW WATER)	12504	Yes	Consecutive Connection	Ground water	Permanent	Active
GOOSE RIVER	1053	Yes	Intake	Surface water	Permanent	Inactive
CONSECUTIVE FROM TRAILL RW	11866	Yes	Consecutive Connection	Ground water	Permanent	Inactive
COMMON HEADER	11344	No	Common Headers	-	-	Inactive
MAYVILLE CITY OF	4071	No	Distribution System/Zone	-	-	Active
IDSE FACILITY	11556	No	Distribution System/Zone	-	-	Inactive
SAMPLE STATION	2624	No	Sampling Station	-	-	Active
TREATMENT PLANT	3031	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT	3031	Inhibitor, Polyphosphate	Corrosion control
TREATMENT PLANT	3031	pH Adjustment	Corrosion control
TREATMENT PLANT	3031	Coagulation	Particulate removal
TREATMENT PLANT	3031	Filtration, Rapid Sand	Particulate removal
TREATMENT PLANT	3031	Flocculation	Particulate removal
TREATMENT PLANT	3031	Rapid Mix	Particulate removal
TREATMENT PLANT	3031	Lime - Soda Ash Addition	Softening (hardness removal)
TREATMENT PLANT	3031	Activated Carbon, Powdered	Taste / odor control
TREATMENT PLANT	3031	Fluoridation	Other
TREATMENT PLANT	3031	Permanganate	Taste / odor control
TREATMENT PLANT	3031	Gaseous Chlorination, Post	Disinfection

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