Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OR4100278
PWS Name	ENTERPRISE, CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	2107
County Served	Wallowa

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	903355521	Returned to Compliance	01-JAN-2025	31-DEC-2025	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	COLIPHAGE	903355519	Known	01-JAN-2025	31-DEC-2025	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	COLIPHAGE	903355520	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	903355522	Known	01-JAN-2025	31-DEC-2025	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	COLIPHAGE	903355518	Known	01-JAN-2025	31-DEC-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	903355517	Returned to Compliance	01-JUL-2024	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	903355516	Returned to Compliance	01-APR-2021	30-JUN-2021	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	903355515	Returned to Compliance	01-OCT-2020	31-OCT-2020	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	903355513	Returned to Compliance	01-OCT-2017	31-OCT-2017	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3355408	Returned to Compliance	01-JUL-2008	31-JUL-2008	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3354708	Returned to Compliance	01-FEB-2008	29-FEB-2008	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	3354608	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3355108	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	3354908	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3355208	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	3355008	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	3354808	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	3354003	Returned to Compliance	01-JAN-2002	31-DEC-2002	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	414400	Returned to Compliance	01-JUL-2000	31-JUL-2000	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	313398	Returned to Compliance	01-JUN-1998	30-JUN-1998	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1598	Returned to Compliance	01-OCT-1997	31-OCT-1997	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	695497	Returned to Compliance	01-JAN-1997	31-DEC-1997	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	71095	Returned to Compliance	01-DEC-1994	31-DEC-1994	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	71195	Returned to Compliance	01-DEC-1994	31-DEC-1994	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	564494	Returned to Compliance	01-AUG-1994	31-AUG-1994	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3353993	Returned to Compliance	01-JUL-1993	31-JUL-1993	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2592293	Known	01-NOV-1992	30-NOV-1992	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2592292	Returned to Compliance	01-NOV-1992	30-NOV-1992	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	2365992	Returned to Compliance	01-AUG-1992	31-AUG-1992	No
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	2142792	Returned to Compliance	01-MAY-1992	31-MAY-1992	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1686491	Returned to Compliance	01-DEC-1991	31-DEC-1991	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	6778980	Known	24-JUN-1979	23-JUN-1980	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	6779080	Known	24-JUN-1979	23-JUN-1980	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	6779480	Known	24-JUN-1979	23-JUN-1980	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	6779180	Known	24-JUN-1979	23-JUN-1980	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	6778880	Known	24-JUN-1979	23-JUN-1980	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	6779280	Known	24-JUN-1979	23-JUN-1980	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	6779580	Known	24-JUN-1979	23-JUN-1980	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	6779680	Known	24-JUN-1979	23-JUN-1980	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	6462180	Known	01-JUN-1976	31-MAY-1980	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	6462380	Known	01-JUN-1976	31-MAY-1980	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
236	903355521	SOX	State Compliance achieved	23-JAN-2026	State	-
235	903355517	SOX	State Compliance achieved	19-MAR-2025	State	-
234	903355516	SOX	State Compliance achieved	09-JUL-2021	State	-
233	903355515	SOX	State Compliance achieved	09-NOV-2020	State	-
232	903355513	SOX	State Compliance achieved	21-NOV-2017	State	-
220	3354908	SOX	State Compliance achieved	25-MAR-2010	State	-
219	3354808	SOX	State Compliance achieved	25-MAR-2010	State	-
209	3355108	SOX	State Compliance achieved	26-NOV-2008	State	DBP 95698
209	3355208	SOX	State Compliance achieved	26-NOV-2008	State	DBP 95698
231	3354608	SOX	State Compliance achieved	28-AUG-2008	State	-
217	3355408	SOX	State Compliance achieved	28-AUG-2008	State	-
216	3354708	SOX	State Compliance achieved	17-MAR-2008	State	-
221	3355008	SOX	State Compliance achieved	10-JAN-2008	State	-
230	2142792	SOX	State Compliance achieved	01-JAN-2007	State	-
104	695497	SOX	State Compliance achieved	03-NOV-2003	State	VALIDATED Migrated SOX 08/30/2004 Due to Sample #A31021A-1 Taken 10/20/2003.
104	3354003	SOX	State Compliance achieved	03-NOV-2003	State	VALIDATED Migrated SOX 08/30/2004 Due to Sample #A31021A-1 Taken 10/20/2003.
213	564494	SOX	State Compliance achieved	01-AUG-2001	State	-
212	414400	SOX	State Compliance achieved	01-AUG-2001	State	-
211	71095	SOX	State Compliance achieved	01-AUG-2001	State	-
214	1686491	SOX	State Compliance achieved	01-AUG-2001	State	-
215	2365992	SOX	State Compliance achieved	01-AUG-2001	State	-
218	313398	SOX	State Compliance achieved	01-AUG-2001	State	-
228	2592292	SOX	State Compliance achieved	17-JUL-2001	State	-
226	71195	SOX	State Compliance achieved	17-JUL-2001	State	-
227	1598	SOX	State Compliance achieved	17-JUL-2001	State	-
229	3353993	SOX	State Compliance achieved	17-JUL-2001	State	-

1 - 26 of 26

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
DORRANCE/LOWER SPRINGS	6699	Yes	Spring	Ground water	Permanent	Active
WELL	1888	Yes	Well	Ground water	Permanent	Active
WHITMORE/UPPER SPRINGS	6700	Yes	Spring	Ground water	Permanent	Active
COMMON HEADER FOR WTP-A	19147	No	Common Headers	-	-	Active
COMMON HEADER FOR WTP-B	20430	No	Common Headers	-	-	Active
Distribution System	6930	No	Distribution System/Zone	-	-	Active
EP FOR SPRING COLLECTORS	12537	No	Sampling Station	-	-	Active
EP FOR WELL	17025	No	Sampling Station	-	-	Active
TP FOR SPRING COLLECTORS	133	No	Treatment Plant	-	-	Active
TP FOR WELL	1440	No	Treatment Plant	-	-	Active

1 - 10 of 10

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP FOR SPRING COLLECTORS	133	Innovative	Other
TP FOR WELL	1440	Innovative	Other

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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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