Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OR4100706
PWS Name	RIDDLE, CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	1224
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 and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	901715669	Known	01-OCT-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	901715668	Known	01-OCT-2025	31-DEC-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715666	Returned to Compliance	01-SEP-2025	30-SEP-2025	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715665	Returned to Compliance	01-SEP-2025	30-SEP-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715667	Returned to Compliance	01-SEP-2025	30-SEP-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715660	Returned to Compliance	01-MAY-2024	31-MAY-2024	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715662	Returned to Compliance	01-MAY-2024	31-MAY-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715661	Returned to Compliance	01-MAY-2024	31-MAY-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	901715664	Returned to Compliance	01-APR-2024	30-JUN-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	901715663	Returned to Compliance	01-APR-2024	30-JUN-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715657	Returned to Compliance	01-NOV-2023	30-NOV-2023	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715659	Returned to Compliance	01-NOV-2023	30-NOV-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715658	Returned to Compliance	01-NOV-2023	30-NOV-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715655	Returned to Compliance	01-OCT-2023	31-OCT-2023	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715656	Returned to Compliance	01-OCT-2023	31-OCT-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715654	Returned to Compliance	01-OCT-2023	31-OCT-2023	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	901715653	Returned to Compliance	01-JUL-2023	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715652	Returned to Compliance	01-MAR-2023	31-MAR-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715650	Returned to Compliance	01-MAR-2023	31-MAR-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715651	Returned to Compliance	01-MAR-2023	31-MAR-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715648	Returned to Compliance	01-JUL-2021	31-JUL-2021	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715649	Returned to Compliance	01-JUL-2021	31-JUL-2021	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715647	Returned to Compliance	01-JUL-2021	31-JUL-2021	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715646	Returned to Compliance	01-SEP-2020	30-SEP-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715644	Returned to Compliance	01-SEP-2020	30-SEP-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715645	Returned to Compliance	01-SEP-2020	30-SEP-2020	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715641	Returned to Compliance	01-MAR-2020	31-MAR-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715643	Returned to Compliance	01-MAR-2020	31-MAR-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715642	Returned to Compliance	01-MAR-2020	31-MAR-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715638	Returned to Compliance	01-FEB-2019	28-FEB-2019	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715636	Returned to Compliance	01-FEB-2019	28-FEB-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715637	Returned to Compliance	01-FEB-2019	28-FEB-2019	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715633	Returned to Compliance	01-DEC-2018	31-DEC-2018	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715635	Returned to Compliance	01-DEC-2018	31-DEC-2018	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715634	Returned to Compliance	01-DEC-2018	31-DEC-2018	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715630	Returned to Compliance	01-MAR-2018	31-MAR-2018	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715632	Returned to Compliance	01-MAR-2018	31-MAR-2018	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715631	Returned to Compliance	01-MAR-2018	31-MAR-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	901715627	Returned to Compliance	01-APR-2017	30-JUN-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	901715626	Returned to Compliance	01-APR-2017	30-JUN-2017	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715624	Returned to Compliance	01-JAN-2017	31-JAN-2017	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715623	Returned to Compliance	01-JAN-2017	31-JAN-2017	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715625	Returned to Compliance	01-JAN-2017	31-JAN-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	901715622	Returned to Compliance	01-OCT-2013	31-DEC-2013	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	901715616	Returned to Compliance	01-AUG-2011	31-AUG-2011	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901715614	Returned to Compliance	01-DEC-2010	31-DEC-2010	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901715615	Returned to Compliance	01-DEC-2010	31-DEC-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1715610	Returned to Compliance	01-OCT-2009	31-OCT-2009	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1715611	Returned to Compliance	01-OCT-2009	31-OCT-2009	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1715408	Returned to Compliance	01-APR-2008	30-APR-2008	No

1 - 50 of 81

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
8888027	901715665	SOX	State Compliance achieved	06-NOV-2025	State	-
8888027	901715666	SOX	State Compliance achieved	06-NOV-2025	State	-
8888027	901715667	SOX	State Compliance achieved	06-NOV-2025	State	-
8888026	901715663	SOX	State Compliance achieved	03-OCT-2024	State	-
8888026	901715664	SOX	State Compliance achieved	03-OCT-2024	State	-
8888025	901715662	SOX	State Compliance achieved	01-JUL-2024	State	-
8888025	901715661	SOX	State Compliance achieved	01-JUL-2024	State	-
8888025	901715660	SOX	State Compliance achieved	01-JUL-2024	State	-
8888024	901715654	SOX	State Compliance achieved	03-JAN-2024	State	-
8888024	901715655	SOX	State Compliance achieved	03-JAN-2024	State	-
8888024	901715656	SOX	State Compliance achieved	03-JAN-2024	State	-
8888024	901715657	SOX	State Compliance achieved	03-JAN-2024	State	-
8888024	901715658	SOX	State Compliance achieved	03-JAN-2024	State	-
8888024	901715659	SOX	State Compliance achieved	03-JAN-2024	State	-
8888023	901715653	SOX	State Compliance achieved	21-JUL-2023	State	-
8888022	901715650	SOX	State Compliance achieved	01-MAY-2023	State	-
8888022	901715651	SOX	State Compliance achieved	01-MAY-2023	State	-
8888022	901715652	SOX	State Compliance achieved	01-MAY-2023	State	-
8888021	901715649	SOX	State Compliance achieved	07-SEP-2021	State	-
8888021	901715647	SOX	State Compliance achieved	07-SEP-2021	State	-
8888021	901715648	SOX	State Compliance achieved	07-SEP-2021	State	-
8888020	901715646	SOX	State Compliance achieved	03-NOV-2020	State	-
8888020	901715645	SOX	State Compliance achieved	03-NOV-2020	State	-
8888020	901715644	SOX	State Compliance achieved	03-NOV-2020	State	-
8888019	901715642	SOX	State Compliance achieved	06-MAY-2020	State	-
8888019	901715643	SOX	State Compliance achieved	06-MAY-2020	State	-
8888019	901715641	SOX	State Compliance achieved	06-MAY-2020	State	-
8888018	901715637	SOX	State Compliance achieved	02-APR-2019	State	-
8888018	901715636	SOX	State Compliance achieved	02-APR-2019	State	-
8888018	901715638	SOX	State Compliance achieved	02-APR-2019	State	-
8888017	901715635	SOX	State Compliance achieved	07-FEB-2019	State	-
8888017	901715634	SOX	State Compliance achieved	07-FEB-2019	State	-
8888017	901715633	SOX	State Compliance achieved	07-FEB-2019	State	-
8888016	901715630	SOX	State Compliance achieved	07-MAY-2018	State	-
8888016	901715631	SOX	State Compliance achieved	07-MAY-2018	State	-
8888016	901715632	SOX	State Compliance achieved	07-MAY-2018	State	-
8888015	901715627	SOX	State Compliance achieved	02-AUG-2017	State	-
8888015	901715626	SOX	State Compliance achieved	02-AUG-2017	State	-
8888014	901715625	SOX	State Compliance achieved	02-MAR-2017	State	-
8888014	901715624	SOX	State Compliance achieved	02-MAR-2017	State	-
8888014	901715623	SOX	State Compliance achieved	02-MAR-2017	State	-
8888013	901715622	SOX	State Compliance achieved	13-FEB-2014	State	-
8888007	901715616	SOX	State Compliance achieved	27-SEP-2011	State	-
8888005	901715615	SOX	State Compliance achieved	03-FEB-2011	State	-
8888006	901715614	SOX	State Compliance achieved	03-FEB-2011	State	-
12	1715610	SOX	State Compliance achieved	05-APR-2010	State	-
13	1715611	SOX	State Compliance achieved	05-APR-2010	State	-
11	1715408	SOX	State Compliance achieved	09-JUN-2008	State	-
10	1715308	SOX	State Compliance achieved	10-MAR-2008	State	-
9	1715208	SOX	State Compliance achieved	07-JAN-2008	State	-

1 - 50 of 69

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
RUSSELL CREEK	11727	Yes	Intake	Surface water	Other	Inactive
COW CREEK	11726	Yes	Intake	Surface water	Permanent	Active
COMMON HEADER FOR WTP-A	19352	No	Common Headers	-	-	Active
Distribution System	7261	No	Distribution System/Zone	-	-	Active
EP FOR COW CREEK	12337	No	Sampling Station	-	-	Active
TP FOR COW CREEK	345	No	Treatment Plant	-	-	Active

1 - 6 of 6

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP FOR COW CREEK	345	Coagulation	Particulate removal
TP FOR COW CREEK	345	Flocculation	Particulate removal
TP FOR COW CREEK	345	Sedimentation	Particulate removal
TP FOR COW CREEK	345	Rapid Mix	Particulate removal
TP FOR COW CREEK	345	Filtration, Rapid Sand	Particulate removal
TP FOR COW CREEK	345	Hypochlorination, Pre	Disinfection
TP FOR COW CREEK	345	Hypochlorination, Post	Disinfection

1 - 7 of 7

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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