Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	ID1280009
PWS Name	RIMROCK SERVICE AREA
PWS Type	Community water system
Owner Type	Public/Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	3493
County Served	Kootenai

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	Monitoring, Regular	Nitrate Rule	Nitrate	3120	Returned to Compliance	01-JUL-2016	30-SEP-2016	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	3115	Known	01-OCT-2011	31-DEC-2011	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3110	Known	01-OCT-2010	31-OCT-2010	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	3008	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	2908	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	2808	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	2708	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	2608	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	2508	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	2408	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	2308	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	2208	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	2108	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	2008	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1908	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1808	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	1708	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1608	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1508	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1408	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	3108	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1108	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1308	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1208	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	1006	Known	01-JAN-2006	31-MAR-2006	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	199	Known	01-JUL-1999	31-JUL-1999	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	295	Known	01-OCT-1994	31-OCT-1994	Yes

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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
114	3120	SOX	State Compliance achieved	15-NOV-2016	State	Nitrate sample collected 11/9/16, entered in SDWIS and saved to TRIM. ssm.
110	3110	SIE	State Public Notification requested	04-DEC-2010	State	-
108	1408	SOX	State Compliance achieved	17-NOV-2008	State	-
108	1508	SOX	State Compliance achieved	17-NOV-2008	State	-
108	1608	SOX	State Compliance achieved	17-NOV-2008	State	-
108	1708	SOX	State Compliance achieved	17-NOV-2008	State	-
108	1808	SOX	State Compliance achieved	17-NOV-2008	State	-
108	1908	SOX	State Compliance achieved	17-NOV-2008	State	-
108	2008	SOX	State Compliance achieved	17-NOV-2008	State	-
108	2108	SOX	State Compliance achieved	17-NOV-2008	State	-
108	2208	SOX	State Compliance achieved	17-NOV-2008	State	-
108	2308	SOX	State Compliance achieved	17-NOV-2008	State	-
108	2408	SOX	State Compliance achieved	17-NOV-2008	State	-
108	2508	SOX	State Compliance achieved	17-NOV-2008	State	-
108	2608	SOX	State Compliance achieved	17-NOV-2008	State	-
108	2708	SOX	State Compliance achieved	17-NOV-2008	State	-
108	2808	SOX	State Compliance achieved	17-NOV-2008	State	-
108	2908	SOX	State Compliance achieved	17-NOV-2008	State	-
108	3008	SOX	State Compliance achieved	17-NOV-2008	State	-
108	3108	SOX	State Compliance achieved	17-NOV-2008	State	-
108	1308	SOX	State Compliance achieved	17-NOV-2008	State	-
108	1208	SOX	State Compliance achieved	17-NOV-2008	State	-
108	1108	SOX	State Compliance achieved	17-NOV-2008	State	-

1 - 23 of 23

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
LANCASTER WELL 1	822	Yes	Well	Ground water	Other	Inactive
LANCASTER WELL 5	13711	Yes	Well	Ground water	Permanent	Active
LANCASTER WELL 4	12978	Yes	Well	Ground water	Permanent	Active
LANCASTER WELL 3	10322	Yes	Well	Ground water	Permanent	Active
LANCASTER WELL 2	823	Yes	Well	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	5539	No	Distribution System/Zone	-	-	Active
SPRING ROCK BOOSTER STATION	19337	No	Pump Facility	-	-	Active
SPRING ROCK RESERVOIR	19336	No	Storage	-	-	Active
SPRING ROCK HYDROPNEUMATIC TANKS	19338	No	Storage	-	-	Active
WELLS 3,4&5 WELLFIELD TREATMENT PLANT	12980	No	Treatment Plant	-	-	Active
LANCASTER 1 TP	50	No	Treatment Plant	-	-	Inactive
WELLFIELD 3,4&5	12989	No	Wellhead	-	-	Active
LANCASTER WELLFIELD 1 AND 2	4937	No	Wellhead	-	-	Inactive

1 - 13 of 13

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELLS 3,4&5 WELLFIELD TREATMENT PLANT	12980	Hypochlorination, Post	Disinfection
LANCASTER 1 TP	50	Sequestration	Iron removal
LANCASTER 1 TP	50	Gaseous Chlorination, Post	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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