Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OR4100372
PWS Name	HERMISTON, CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	20000
County Served	Umatilla

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	903410641	Returned to Compliance	01-FEB-2025	28-FEB-2025	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	903410623	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	COLIPHAGE	903410616	Returned to Compliance	01-SEP-2022	30-SEP-2022	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	COLIPHAGE	903410617	Returned to Compliance	01-SEP-2022	30-SEP-2022	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	COLIPHAGE	903410614	Returned to Compliance	01-JUL-2022	31-JUL-2022	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	COLIPHAGE	903410615	Returned to Compliance	01-JUL-2022	31-JUL-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	903410599	Returned to Compliance	01-JUL-2016	30-SEP-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	903410600	Returned to Compliance	01-JUL-2016	30-SEP-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	903410596	Returned to Compliance	01-APR-2015	30-JUN-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	903410597	Returned to Compliance	01-APR-2015	30-JUN-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	903410592	Returned to Compliance	01-APR-2014	30-JUN-2014	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	903410593	Returned to Compliance	01-APR-2014	30-JUN-2014	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	903410590	Returned to Compliance	01-JAN-2014	31-MAR-2014	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	903410591	Returned to Compliance	01-JAN-2014	31-MAR-2014	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	903410585	Returned to Compliance	01-AUG-2013	31-AUG-2013	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	903410584	Returned to Compliance	01-AUG-2013	31-AUG-2013	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	903410586	Returned to Compliance	01-AUG-2013	31-AUG-2013	No
MR	Failure to Conduct Assessment Monitoring	Ground Water Rule	COLIPHAGE	903410576	Returned to Compliance	01-JAN-2012	31-DEC-2012	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	903410562	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	903410563	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	903410556	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	903410557	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3410560	Returned to Compliance	01-SEP-2010	30-SEP-2010	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3410561	Returned to Compliance	01-SEP-2010	30-SEP-2010	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3410558	Returned to Compliance	01-JUL-2010	31-JUL-2010	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	3410559	Returned to Compliance	01-JUL-2010	31-JUL-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3410537	Returned to Compliance	01-JAN-2010	31-MAR-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3410536	Returned to Compliance	01-JAN-2010	31-MAR-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	3410531	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	3410530	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	3410529	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	3410528	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	3410527	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	3410526	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	3410525	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	3410524	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	3410532	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	3410535	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	3410523	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	3410522	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	3410521	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	3410520	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	3410519	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	3410518	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	3410517	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	3410516	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	3410515	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	3410514	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	3410513	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	3410512	Returned to Compliance	01-JAN-2009	31-DEC-2009	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
400	903410641	SOX	State Compliance achieved	07-MAR-2025	State	-
399	903410623	SOX	State Compliance achieved	26-DEC-2023	State	-
397	903410617	SOX	State Compliance achieved	18-OCT-2022	State	-
397	903410616	SOX	State Compliance achieved	18-OCT-2022	State	-
396	903410615	SOX	State Compliance achieved	18-AUG-2022	State	-
396	903410614	SOX	State Compliance achieved	18-AUG-2022	State	-
394	903410599	SOX	State Compliance achieved	05-JAN-2017	State	-
394	903410600	SOX	State Compliance achieved	05-JAN-2017	State	-
393	903410597	SOX	State Compliance achieved	15-SEP-2015	State	-
393	903410596	SOX	State Compliance achieved	15-SEP-2015	State	-
392	903410590	SOX	State Compliance achieved	30-SEP-2014	State	-
392	903410591	SOX	State Compliance achieved	30-SEP-2014	State	-
392	903410593	SOX	State Compliance achieved	30-SEP-2014	State	-
392	903410592	SOX	State Compliance achieved	30-SEP-2014	State	-
391	903410586	SOX	State Compliance achieved	02-OCT-2013	State	-
391	903410584	SOX	State Compliance achieved	02-OCT-2013	State	-
391	903410585	SOX	State Compliance achieved	02-OCT-2013	State	-
390	903410576	SOX	State Compliance achieved	11-APR-2013	State	-
380	903410563	SOX	State Compliance achieved	05-DEC-2011	State	-
379	903410562	SOX	State Compliance achieved	05-DEC-2011	State	-
377	903410556	SOX	State Compliance achieved	25-MAR-2011	State	-
378	903410557	SOX	State Compliance achieved	25-MAR-2011	State	-
376	3410560	SOX	State Compliance achieved	08-NOV-2010	State	-
375	3410561	SOX	State Compliance achieved	08-NOV-2010	State	-
383	3410558	SIA	State Violation/Reminder Notice	27-SEP-2010	State	-
383	3410559	SIA	State Violation/Reminder Notice	27-SEP-2010	State	-
366	3410536	SOX	State Compliance achieved	09-JUN-2010	State	-
367	3410537	SOX	State Compliance achieved	09-JUN-2010	State	-
337	3410515	SOX	State Compliance achieved	23-FEB-2010	State	-
338	3410516	SOX	State Compliance achieved	23-FEB-2010	State	-
339	3410517	SOX	State Compliance achieved	23-FEB-2010	State	-
340	3410518	SOX	State Compliance achieved	23-FEB-2010	State	-
341	3410519	SOX	State Compliance achieved	23-FEB-2010	State	-
342	3410520	SOX	State Compliance achieved	23-FEB-2010	State	-
343	3410521	SOX	State Compliance achieved	23-FEB-2010	State	-
344	3410522	SOX	State Compliance achieved	23-FEB-2010	State	-
345	3410523	SOX	State Compliance achieved	23-FEB-2010	State	-
346	3410524	SOX	State Compliance achieved	23-FEB-2010	State	-
347	3410525	SOX	State Compliance achieved	23-FEB-2010	State	-
348	3410526	SOX	State Compliance achieved	23-FEB-2010	State	-
349	3410527	SOX	State Compliance achieved	23-FEB-2010	State	-
350	3410528	SOX	State Compliance achieved	23-FEB-2010	State	-
351	3410529	SOX	State Compliance achieved	23-FEB-2010	State	-
352	3410530	SOX	State Compliance achieved	23-FEB-2010	State	-
353	3410531	SOX	State Compliance achieved	23-FEB-2010	State	-
354	3410532	SOX	State Compliance achieved	23-FEB-2010	State	-
355	3410535	SOX	State Compliance achieved	23-FEB-2010	State	-
336	3410514	SOX	State Compliance achieved	23-FEB-2010	State	-
334	3410512	SOX	State Compliance achieved	23-FEB-2010	State	-
335	3410513	SOX	State Compliance achieved	23-FEB-2010	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
COLUMBIA RIVER	11878	Yes	Intake	Surface water	Permanent	Active
WELL #6 - HWY 395	1989	Yes	Well	Ground water	Permanent	Active
WELL #5 - HARPER RD	1988	Yes	Well	Ground water	Permanent	Active
WELL #4 - 4TH ST. CITY SH.	1987	Yes	Well	Ground water	Permanent	Active
WELL #2 - NEWPORT PARK	1986	Yes	Well	Ground water	Permanent	Active
WELL #3 - 3RD ST.	1990	Yes	Well	Ground water	Emergency	Inactive
COMMON HEADER FOR WTP-A	19184	No	Common Headers	-	-	Active
COMMON HEADER FOR WTP-B	19186	No	Common Headers	-	-	Active
COMMON HEADER FOR WTP-C	19187	No	Common Headers	-	-	Active
COMMON HEADER FOR WTP-D	19188	No	Common Headers	-	-	Active
COMMON HEADER FOR WTP-F	20412	No	Common Headers	-	-	Active
COMMON HEADER FOR WTP-E	19185	No	Common Headers	-	-	Inactive
DISTRIBUTION SYSTEM	7009	No	Distribution System/Zone	-	-	Active
EP FOR WELL #2	12107	No	Sampling Station	-	-	Active
EP FOR WELL #4	12109	No	Sampling Station	-	-	Active
EP FOR WELL #5	12110	No	Sampling Station	-	-	Active
EP FOR WELL #6	12111	No	Sampling Station	-	-	Active
EP FOR COLUMBIA RIVER	16908	No	Sampling Station	-	-	Active
EP FOR WELL #3	12108	No	Sampling Station	-	-	Inactive
TP FOR COLUMBIA RIVER	1422	No	Treatment Plant	-	-	Active
TP FOR WELL #2	170	No	Treatment Plant	-	-	Active
TP FOR WELL #4	172	No	Treatment Plant	-	-	Active
TP FOR WELL #5	173	No	Treatment Plant	-	-	Active
TP FOR WELL #6	174	No	Treatment Plant	-	-	Active
TP FOR WELL #3	171	No	Treatment Plant	-	-	Inactive

1 - 25 of 25

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP FOR COLUMBIA RIVER	1422	Filtration, Rapid Sand	Particulate removal
TP FOR COLUMBIA RIVER	1422	Gaseous Chlorination, Post	Disinfection
TP FOR COLUMBIA RIVER	1422	Coagulation	Particulate removal
TP FOR COLUMBIA RIVER	1422	Flocculation	Particulate removal
TP FOR COLUMBIA RIVER	1422	Gaseous Chlorination, Pre	Disinfection
TP FOR COLUMBIA RIVER	1422	Rapid Mix	Particulate removal
TP FOR COLUMBIA RIVER	1422	Sedimentation	Particulate removal
TP FOR WELL #2	170	Aeration, Cascade	Taste / odor control
TP FOR WELL #2	170	Innovative	Other
TP FOR WELL #4	172	Aeration, Cascade	Taste / odor control
TP FOR WELL #4	172	Innovative	Other
TP FOR WELL #5	173	Innovative	Other
TP FOR WELL #6	174	Aeration, Cascade	Taste / odor control
TP FOR WELL #6	174	Innovative	Other

1 - 14 of 14

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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