---

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

Go

Rows1510152025501001000All

Actions

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 1 Disinfectants and Disinfection Byproducts Rule	TTHM	404009	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	404109	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	403809	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	403909	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	403608	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	403708	Returned to Compliance	01-JAN-2008	31-MAR-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	403407	Returned to Compliance	01-OCT-2006	31-DEC-2006	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	403302	Returned to Compliance	01-SEP-2002	30-SEP-2002	Yes

• 1 - 8 of 8

Column Actions

Search

---

Enforcement Actions

Go

Rows1510152025501001000All

Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
1211	403608	SOX	State Compliance achieved	01-APR-2011	State	NOVW081200244 TERMINATED
1211	403708	SOX	State Compliance achieved	01-APR-2011	State	NOVW081200244 TERMINATED
1110	403809	SOX	State Compliance achieved	30-JUL-2010	State	-
1110	403909	SOX	State Compliance achieved	30-JUL-2010	State	-
1110	404109	SOX	State Compliance achieved	30-JUL-2010	State	-
1110	404009	SOX	State Compliance achieved	30-JUL-2010	State	-
1009	403302	SOX	State Compliance achieved	09-JUN-2009	State	-
1009	403407	SOX	State Compliance achieved	09-JUN-2009	State	-

• 1 - 8 of 8

Column Actions

Search

---

All Facilities

Go

Rows1510152025501001000All

Actions

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
LITTLE MISSOURI RIVER	2526	Yes	Intake	Surface water	Permanent	Active
LAKE NICHOLS	2527	Yes	Intake	Surface water	Permanent	Active
NASHVILLE WATERWORKS	2828	No	Distribution System/Zone	-	-	Active
POTW	501	No	Treatment Plant	-	-	Active

• 1 - 4 of 4

Column Actions

Search

---

Treatment Processes

Go

Rows1510152025501001000All

Actions

Facility Name	Facility ID	Treatment Process	Treatment Objective
POTW	501	Gaseous Chlorination, Post	Disinfection
POTW	501	pH Adjustment, Post	Corrosion control
POTW	501	Inhibitor, Hexametaphosphate	Corrosion control
POTW	501	Gaseous Chlorination, Pre	Disinfection
POTW	501	Gaseous Chlorination, Post	Disinfection
POTW	501	Rapid Mix	Particulate removal
POTW	501	Coagulation	Particulate removal
POTW	501	Flocculation	Particulate removal
POTW	501	Sedimentation	Particulate removal
POTW	501	Filtration, Rapid Sand	Particulate removal
POTW	501	Activated Carbon, Granular	Taste / odor control
POTW	501	Fluoridation	Other

• 1 - 12 of 12

Column Actions

Search