Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OR4100719
PWS Name	UMPQUA BASIN WATER ASSOC
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	9499
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, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	900740629	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	900740628	Returned to Compliance	01-JUL-2025	31-JUL-2025	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	900740627	Returned to Compliance	01-JUN-2025	30-JUN-2025	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	900740626	Returned to Compliance	01-MAY-2025	31-MAY-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	900740625	Returned to Compliance	01-JUL-2024	31-JUL-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	900740624	Returned to Compliance	01-JUL-2024	31-JUL-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	900740623	Open	30-MAY-2024	-	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	900740622	Open	01-APR-2024	-	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	900740619	Returned to Compliance	01-JUL-2019	31-JUL-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	900740618	Returned to Compliance	01-JUL-2019	31-JUL-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	900740620	Returned to Compliance	01-JUL-2019	31-JUL-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	900740610	Returned to Compliance	01-MAY-2013	31-MAY-2013	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	900740611	Returned to Compliance	01-MAY-2013	31-MAY-2013	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	900740609	Returned to Compliance	01-MAY-2013	31-MAY-2013	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	Long Term 2 Enhanced Surface Water Treatment Rule	#1	Returned to Compliance	01-JUL-2008	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	744409	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	744309	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	744209	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	744109	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	744009	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	743909	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	743809	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	743709	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	743609	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	743509	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	743409	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	743309	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	743209	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	743109	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	744509	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	744609	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	744709	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	744809	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	744909	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	745009	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	745209	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	743009	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	745109	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	740807	Returned to Compliance	01-JAN-2007	31-JAN-2007	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	740707	Returned to Compliance	01-DEC-2006	31-DEC-2006	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	740506	Returned to Compliance	01-AUG-2006	31-AUG-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	742707	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	742607	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	742507	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	742407	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	742307	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	742207	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	742107	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	742807	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	742907	Returned to Compliance	01-JAN-2006	31-DEC-2006	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
316	900740627	SOX	State Compliance achieved	03-OCT-2025	State	-
316	900740626	SOX	State Compliance achieved	03-OCT-2025	State	-
316	900740628	SOX	State Compliance achieved	03-OCT-2025	State	-
316	900740629	SOX	State Compliance achieved	03-OCT-2025	State	-
315	900740625	SOX	State Compliance achieved	09-SEP-2024	State	-
315	900740624	SOX	State Compliance achieved	09-SEP-2024	State	-
314	900740622	SIE	State Public Notification requested	29-APR-2024	State	-
313	900740619	SOX	State Compliance achieved	05-SEP-2019	State	-
313	900740618	SOX	State Compliance achieved	05-SEP-2019	State	-
313	900740620	SOX	State Compliance achieved	05-SEP-2019	State	-
311	900740610	SOX	State Compliance achieved	02-JUL-2013	State	-
310	900740609	SOX	State Compliance achieved	02-JUL-2013	State	-
312	900740611	SOX	State Compliance achieved	02-JUL-2013	State	-
306	46096	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	46103	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	740205	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	740506	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	740707	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	740807	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	740907	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	741007	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	741107	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	741207	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	741307	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	741407	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	741507	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	741607	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	741707	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	741807	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	741907	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	742007	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	742107	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	742207	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	742307	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	742407	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	742507	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	742607	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	742707	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	742807	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	742907	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	743009	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	743109	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	743209	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	743309	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	743409	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	743509	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	743609	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	743709	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	743809	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT
306	743909	SOX	State Compliance achieved	13-NOV-2009	State	non snc RCT

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
NORTH UMPQUA RIVER	11781	Yes	Intake	Surface water	Permanent	Active
COMMON HEADER FOR WTP-A	19357	No	Common Headers	-	-	Active
DISTRIBUTION SYSTEM	7269	No	Distribution System/Zone	-	-	Active
EP FOR NORTH UMPQUA	12279	No	Sampling Station	-	-	Active
TP FOR NORTH UMPQUA	350	No	Treatment Plant	-	-	Active

1 - 5 of 5

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP FOR NORTH UMPQUA	350	Coagulation	Particulate removal
TP FOR NORTH UMPQUA	350	Sedimentation	Particulate removal
TP FOR NORTH UMPQUA	350	Filtration, Ultrafiltration	Particulate removal
TP FOR NORTH UMPQUA	350	Hypochlorination, Post	Disinfection
TP FOR NORTH UMPQUA	350	Hypochlorination, Pre	Disinfection

1 - 5 of 5

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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