Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OR4100581
PWS Name	OAKLAND, CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	954
County Served	Douglas

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 of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421745	Returned to Compliance	01-AUG-2025	31-AUG-2025	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	902421747	Returned to Compliance	01-AUG-2025	31-AUG-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421746	Returned to Compliance	01-AUG-2025	31-AUG-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	902421743	Returned to Compliance	01-JUL-2025	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	902421744	Returned to Compliance	01-JUL-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	902421742	Returned to Compliance	01-OCT-2024	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	902421741	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421739	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421740	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	902421735	Returned to Compliance	01-JUL-2024	-	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421736	Returned to Compliance	01-JUN-2024	30-JUN-2024	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	902421738	Returned to Compliance	01-JUN-2024	30-JUN-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421737	Returned to Compliance	01-JUN-2024	30-JUN-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421733	Returned to Compliance	01-JAN-2023	31-JAN-2023	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	902421734	Returned to Compliance	01-JAN-2023	31-JAN-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421732	Returned to Compliance	01-JAN-2023	31-JAN-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	902421728	Returned to Compliance	01-MAR-2020	31-MAR-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421730	Returned to Compliance	01-MAR-2020	31-MAR-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421731	Returned to Compliance	01-MAR-2020	31-MAR-2020	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	902421729	Returned to Compliance	01-MAR-2020	31-MAR-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421718	Returned to Compliance	01-MAR-2015	31-MAR-2015	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421719	Returned to Compliance	01-MAR-2015	31-MAR-2015	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	902421717	Returned to Compliance	01-MAR-2015	31-MAR-2015	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	902421716	Returned to Compliance	01-MAR-2015	31-MAR-2015	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421712	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	902421710	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	902421711	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2427210	Returned to Compliance	01-JAN-2010	31-JAN-2010	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2427209	Returned to Compliance	01-MAY-2009	31-MAY-2009	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2427109	Returned to Compliance	01-FEB-2009	28-FEB-2009	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2427009	Returned to Compliance	01-JAN-2009	31-JAN-2009	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2426909	Returned to Compliance	01-OCT-2008	31-OCT-2008	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2426808	Returned to Compliance	01-JUL-2008	31-JUL-2008	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2419307	Returned to Compliance	01-JUN-2007	30-JUN-2007	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2419207	Returned to Compliance	01-APR-2007	30-APR-2007	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2419107	Returned to Compliance	01-MAR-2007	31-MAR-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	2426508	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	2426408	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	2426308	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	2426208	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	2426108	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	2426008	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	2425908	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	2425808	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	2425708	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	2425608	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	2425508	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	2425408	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	2425308	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	2425208	Returned to Compliance	01-JAN-2007	31-DEC-2007	No

1 - 50 of 132

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
8893934	902421744	SOX	State Compliance achieved	24-NOV-2025	State	-
8893933	902421746	SOX	State Compliance achieved	06-OCT-2025	State	-
8893933	902421745	SOX	State Compliance achieved	06-OCT-2025	State	-
8893933	902421747	SOX	State Compliance achieved	06-OCT-2025	State	-
8893932	902421743	SOX	State Compliance achieved	03-SEP-2025	State	-
8893932	902421735	SOX	State Compliance achieved	03-SEP-2025	State	-
8893930	902421739	SOX	State Compliance achieved	02-NOV-2024	State	-
8893930	902421741	SOX	State Compliance achieved	02-NOV-2024	State	-
8893930	902421740	SOX	State Compliance achieved	02-NOV-2024	State	-
8893931	902421742	SOX	State Compliance achieved	17-OCT-2024	State	-
8893926	902421738	SOX	State Compliance achieved	03-AUG-2024	State	-
8893926	902421737	SOX	State Compliance achieved	03-AUG-2024	State	-
8893926	902421736	SOX	State Compliance achieved	03-AUG-2024	State	-
8893925	902421733	SOX	State Compliance achieved	04-MAR-2023	State	-
8893925	902421732	SOX	State Compliance achieved	04-MAR-2023	State	-
8893925	902421734	SOX	State Compliance achieved	04-MAR-2023	State	-
8893924	902421731	SOX	State Compliance achieved	01-MAY-2020	State	-
8893924	902421729	SOX	State Compliance achieved	01-MAY-2020	State	-
8893924	902421730	SOX	State Compliance achieved	01-MAY-2020	State	-
8893923	902421728	SOX	State Compliance achieved	17-APR-2020	State	-
8893918	902421718	SOX	State Compliance achieved	07-MAY-2015	State	-
8893918	902421719	SOX	State Compliance achieved	07-MAY-2015	State	-
8893918	902421717	SOX	State Compliance achieved	07-MAY-2015	State	-
8893919	902421716	SOX	State Compliance achieved	20-APR-2015	State	-
8893917	902421712	SOX	State Compliance achieved	07-FEB-2013	State	-
8893916	902421711	SOX	State Compliance achieved	07-FEB-2013	State	-
8893915	902421710	SOX	State Compliance achieved	07-FEB-2013	State	-
8893911	2427210	SIA	State Violation/Reminder Notice	22-MAR-2010	State	-
40	2427209	SOX	State Compliance achieved	06-JUL-2009	State	-
8893909	2418907	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2426708	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2416907	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2417007	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2417107	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2417207	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2417307	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2417407	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2417507	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2417607	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2417707	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2417807	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2417907	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2418007	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2418107	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2418207	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2418307	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2418407	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2418507	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2418607	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312
8893909	2418707	SOX	State Compliance achieved	16-MAR-2009	State	VOC snc 89312

1 - 50 of 122

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CALAPOOYA CREEK	11720	Yes	Intake	Surface water	Permanent	Active
COMMON HEADER FOR WTP-A	19315	No	Common Headers	-	-	Active
Distribution System	7163	No	Distribution System/Zone	-	-	Active
EP FOR CALAPOOYA CREEK	12220	No	Sampling Station	-	-	Active
TP FOR CALAPOOYA CREEK	303	No	Treatment Plant	-	-	Active

1 - 5 of 5

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP FOR CALAPOOYA CREEK	303	Sedimentation	Particulate removal
TP FOR CALAPOOYA CREEK	303	Filtration, Rapid Sand	Particulate removal
TP FOR CALAPOOYA CREEK	303	Coagulation	Particulate removal
TP FOR CALAPOOYA CREEK	303	Hypochlorination, Post	Disinfection

1 - 4 of 4

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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