Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OR4100922
PWS Name	VERNONIA, CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	2100
County Served	Columbia

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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	901832449	Returned to Compliance	01-AUG-2025	31-AUG-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	901832448	Returned to Compliance	01-JUL-2025	-	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832450	Returned to Compliance	01-JUL-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	901832452	Known	01-JAN-2025	31-DEC-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	901832447	Returned to Compliance	01-JUL-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	901832441	Returned to Compliance	01-AUG-2023	31-AUG-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832442	Returned to Compliance	01-AUG-2023	31-AUG-2023	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901832444	Returned to Compliance	01-AUG-2023	31-AUG-2023	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832443	Returned to Compliance	01-AUG-2023	31-AUG-2023	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	901832440	Returned to Compliance	01-JUL-2023	-	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832445	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	901832439	Returned to Compliance	01-MAY-2023	31-MAY-2023	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832435	Returned to Compliance	01-JUL-2022	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	901832431	Returned to Compliance	01-JUL-2022	31-JUL-2022	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832434	Returned to Compliance	01-JUL-2022	31-JUL-2022	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832433	Returned to Compliance	01-JUL-2022	31-JUL-2022	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832436	Returned to Compliance	01-JUL-2022	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901832432	Returned to Compliance	01-JUL-2022	31-JUL-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	901832426	Returned to Compliance	01-MAR-2022	31-MAR-2022	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901832429	Returned to Compliance	01-MAR-2022	31-MAR-2022	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832427	Returned to Compliance	01-MAR-2022	31-MAR-2022	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832428	Returned to Compliance	01-MAR-2022	31-MAR-2022	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832430	Returned to Compliance	01-JAN-2022	-	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832425	Returned to Compliance	01-JUL-2021	-	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832424	Returned to Compliance	01-JUL-2021	-	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832423	Returned to Compliance	01-JUL-2021	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	901832421	Returned to Compliance	01-MAR-2021	31-MAR-2021	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832420	Returned to Compliance	01-JUL-2020	-	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832416	Returned to Compliance	01-JUL-2020	31-JUL-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832415	Returned to Compliance	01-JUL-2020	31-JUL-2020	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901832417	Returned to Compliance	01-JUL-2020	31-JUL-2020	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	901832414	Returned to Compliance	01-JUL-2020	31-JUL-2020	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832418	Returned to Compliance	01-JUL-2020	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	901832409	Returned to Compliance	01-JUN-2020	30-JUN-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832411	Returned to Compliance	01-JUN-2020	30-JUN-2020	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901832412	Returned to Compliance	01-JUN-2020	30-JUN-2020	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832410	Returned to Compliance	01-JUN-2020	30-JUN-2020	No
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	901832413	Returned to Compliance	01-JAN-2020	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	901832405	Returned to Compliance	01-JUL-2019	31-JUL-2019	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901832406	Returned to Compliance	01-JUL-2019	31-JUL-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832407	Returned to Compliance	01-JUL-2019	31-JUL-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832408	Returned to Compliance	01-JUL-2019	31-JUL-2019	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832404	Returned to Compliance	01-FEB-2019	28-FEB-2019	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832403	Returned to Compliance	01-SEP-2018	30-SEP-2018	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832402	Returned to Compliance	01-SEP-2018	30-SEP-2018	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	901832400	Returned to Compliance	01-SEP-2018	30-SEP-2018	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	901832401	Returned to Compliance	01-SEP-2018	30-SEP-2018	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	901832397	Returned to Compliance	01-DEC-2017	31-DEC-2017	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832395	Returned to Compliance	01-MAR-2017	31-MAR-2017	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	901832394	Returned to Compliance	01-MAR-2017	31-MAR-2017	No

1 - 50 of 234

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
8926266	901832449	SOX	State Compliance achieved	10-NOV-2025	State	-
8926267	901832450	SOX	State Compliance achieved	10-NOV-2025	State	-
8926265	901832448	SOX	State Compliance achieved	22-AUG-2025	State	-
8926264	901832447	SOX	State Compliance achieved	06-AUG-2024	State	-
8926262	901832440	SOX	State Compliance achieved	25-OCT-2023	State	-
8926260	901832441	SOX	State Compliance achieved	09-OCT-2023	State	-
8926261	901832445	SOX	State Compliance achieved	05-OCT-2023	State	-
8926263	901832443	SOX	State Compliance achieved	05-OCT-2023	State	-
8926263	901832442	SOX	State Compliance achieved	05-OCT-2023	State	-
8926263	901832444	SOX	State Compliance achieved	05-OCT-2023	State	-
8926259	901832439	SOX	State Compliance achieved	10-JUL-2023	State	-
8926258	901832436	SOX	State Compliance achieved	10-NOV-2022	State	-
8926255	901832431	SOX	State Compliance achieved	09-SEP-2022	State	-
8926256	901832435	SOX	State Compliance achieved	09-SEP-2022	State	-
8926257	901832434	SOX	State Compliance achieved	09-SEP-2022	State	-
8926257	901832433	SOX	State Compliance achieved	09-SEP-2022	State	-
8926257	901832432	SOX	State Compliance achieved	09-SEP-2022	State	-
8926252	901832426	SOX	State Compliance achieved	06-MAY-2022	State	-
8926253	901832430	SOX	State Compliance achieved	06-MAY-2022	State	-
8926254	901832429	SOX	State Compliance achieved	06-MAY-2022	State	-
8926254	901832428	SOX	State Compliance achieved	06-MAY-2022	State	-
8926254	901832427	SOX	State Compliance achieved	06-MAY-2022	State	-
8926251	901832425	SOX	State Compliance achieved	10-DEC-2021	State	-
8926250	901832424	SOX	State Compliance achieved	08-NOV-2021	State	-
8926249	901832423	SOX	State Compliance achieved	08-OCT-2021	State	-
8926247	901832421	SOX	State Compliance achieved	06-MAY-2021	State	-
8926246	901832420	SOX	State Compliance achieved	06-NOV-2020	State	-
8926245	901832410	SOX	State Compliance achieved	03-SEP-2020	State	-
8926245	901832411	SOX	State Compliance achieved	03-SEP-2020	State	-
8926245	901832412	SOX	State Compliance achieved	03-SEP-2020	State	-
8926244	901832413	SOX	State Compliance achieved	03-SEP-2020	State	-
8926245	901832415	SOX	State Compliance achieved	03-SEP-2020	State	-
8926245	901832416	SOX	State Compliance achieved	03-SEP-2020	State	-
8926245	901832417	SOX	State Compliance achieved	03-SEP-2020	State	-
8926244	901832418	SOX	State Compliance achieved	03-SEP-2020	State	-
8926242	901832409	SOX	State Compliance achieved	03-SEP-2020	State	-
8926243	901832414	SOX	State Compliance achieved	03-SEP-2020	State	-
8926241	901832369	SOX	State Compliance achieved	19-DEC-2019	State	-
8926240	901832376	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832392	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832391	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832390	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832389	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832364	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832365	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832366	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832367	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832368	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832370	SOX	State Compliance achieved	22-NOV-2019	State	-
8926240	901832371	SOX	State Compliance achieved	22-NOV-2019	State	-

1 - 50 of 223

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
ROCK CREEK	11822	Yes	Intake	Surface water	Permanent	Active
COMMON HEADER FOR WTP-A	19461	No	Common Headers	-	-	Active
Distribution System	7416	No	Distribution System/Zone	-	-	Active
EP FOR ROCK CREEK	12318	No	Sampling Station	-	-	Active
TP FOR ROCK CREEK	457	No	Treatment Plant	-	-	Active

1 - 5 of 5

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP FOR ROCK CREEK	457	pH Adjustment, Pre	Particulate removal
TP FOR ROCK CREEK	457	Sedimentation	Particulate removal
TP FOR ROCK CREEK	457	Innovative	Corrosion control
TP FOR ROCK CREEK	457	Filtration, Rapid Sand	Particulate removal
TP FOR ROCK CREEK	457	Coagulation	Particulate removal
TP FOR ROCK CREEK	457	Flocculation	Particulate removal
TP FOR ROCK CREEK	457	Gaseous Chlorination, Post	Disinfection
TP FOR ROCK CREEK	457	Rapid Mix	Particulate removal

1 - 8 of 8

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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