Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OR4100312
PWS Name	GASTON, CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	625
County Served	Washington

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	3354330	Known	01-OCT-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3354329	Known	01-OCT-2025	31-DEC-2025	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3354326	Returned to Compliance	01-OCT-2024	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	3354327	Returned to Compliance	01-OCT-2024	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3354325	Returned to Compliance	01-JUL-2024	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	3354324	Returned to Compliance	01-OCT-2023	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3354323	Returned to Compliance	01-JUL-2023	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3354320	Returned to Compliance	01-OCT-2017	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3354321	Returned to Compliance	01-JUL-2017	30-SEP-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3354322	Returned to Compliance	01-JUL-2017	30-SEP-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3354319	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)	3354318	Returned to Compliance	01-JUL-2016	30-SEP-2016	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3354317	Known	01-JUL-2016	31-JUL-2016	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3354314	Known	01-JUN-2016	30-JUN-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3354315	Returned to Compliance	01-APR-2016	30-JUN-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3354316	Returned to Compliance	01-APR-2016	30-JUN-2016	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3354311	Returned to Compliance	01-NOV-2015	30-NOV-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3354313	Returned to Compliance	01-OCT-2015	31-DEC-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3354312	Returned to Compliance	01-OCT-2015	31-DEC-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3354310	Returned to Compliance	01-JUL-2015	30-SEP-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3354309	Returned to Compliance	01-JUL-2015	30-SEP-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3354308	Returned to Compliance	01-APR-2015	30-JUN-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3354307	Returned to Compliance	01-APR-2015	30-JUN-2015	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3354305	Returned to Compliance	01-OCT-2014	31-OCT-2014	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3354306	Returned to Compliance	01-OCT-2014	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3354304	Returned to Compliance	01-JUL-2014	30-SEP-2014	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3354303	Returned to Compliance	01-JUL-2014	30-SEP-2014	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3354302	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)	3354301	Returned to Compliance	01-APR-2014	30-JUN-2014	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3354300	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)	3354299	Returned to Compliance	01-JAN-2014	31-MAR-2014	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3354298	Returned to Compliance	01-JAN-2014	31-JAN-2014	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3354297	Returned to Compliance	01-JAN-2011	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3354294	Returned to Compliance	01-JAN-2009	31-JAN-2009	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3354295	Returned to Compliance	01-JAN-2009	31-JAN-2009	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	399101	Returned to Compliance	01-JUL-2001	31-JUL-2001	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	533594	Returned to Compliance	01-JUL-1994	31-JUL-1994	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	466094	Returned to Compliance	01-JUL-1994	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3354293	Returned to Compliance	01-JUL-1993	31-JUL-1993	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3211093	Returned to Compliance	01-JUN-1993	30-JUN-1993	Yes

1 - 40 of 40

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
8905120	3354326	SOX	State Compliance achieved	10-OCT-2025	State	-
8905119	3354327	SOX	State Compliance achieved	25-NOV-2024	State	-
8905118	3354325	SOX	State Compliance achieved	30-SEP-2024	State	-
8905117	3354324	SOX	State Compliance achieved	19-OCT-2023	State	-
8905116	3354323	SOX	State Compliance achieved	20-JUL-2023	State	-
8905115	3354320	SOX	State Compliance achieved	23-JUL-2018	State	-
8905114	3354306	SOX	State Compliance achieved	23-JUL-2018	State	-
8905113	3354321	SOX	State Compliance achieved	17-OCT-2017	State	-
8905113	3354322	SOX	State Compliance achieved	17-OCT-2017	State	-
8905112	3354318	SOX	State Compliance achieved	21-NOV-2016	State	-
8905112	3354319	SOX	State Compliance achieved	21-NOV-2016	State	-
8905110	3354316	SOX	State Compliance achieved	27-SEP-2016	State	-
8905110	3354315	SOX	State Compliance achieved	27-SEP-2016	State	-
8905107	3354307	SOX	State Compliance achieved	14-MAR-2016	State	-
8905107	3354313	SOX	State Compliance achieved	14-MAR-2016	State	-
8905107	3354312	SOX	State Compliance achieved	14-MAR-2016	State	-
8905107	3354310	SOX	State Compliance achieved	14-MAR-2016	State	-
8905107	3354309	SOX	State Compliance achieved	14-MAR-2016	State	-
8905107	3354308	SOX	State Compliance achieved	14-MAR-2016	State	-
8905106	3354311	SOX	State Compliance achieved	14-DEC-2015	State	-
8905104	3354304	SOX	State Compliance achieved	28-NOV-2014	State	-
8905104	3354301	SOX	State Compliance achieved	28-NOV-2014	State	-
8905104	3354302	SOX	State Compliance achieved	28-NOV-2014	State	-
8905104	3354299	SOX	State Compliance achieved	28-NOV-2014	State	-
8905104	3354303	SOX	State Compliance achieved	28-NOV-2014	State	-
8905104	3354300	SOX	State Compliance achieved	28-NOV-2014	State	-
8905103	3354305	SOX	State Compliance achieved	18-NOV-2014	State	-
8905102	3354298	SOX	State Compliance achieved	13-FEB-2014	State	-
8905101	3354297	SOX	State Compliance achieved	24-OCT-2011	State	-
8905097	3354294	SOX	State Compliance achieved	25-JUN-2010	State	-
8905097	3354295	SOX	State Compliance achieved	25-JUN-2010	State	-
3	3354293	SOX	State Compliance achieved	07-SEP-2001	State	-
1	399101	SOX	State Compliance achieved	07-SEP-2001	State	-
2	533594	SOX	State Compliance achieved	07-SEP-2001	State	-
5	3211093	SOX	State Compliance achieved	07-SEP-2001	State	-
8905096	466094	SOX	State Compliance achieved	13-SEP-1994	State	VALIDATED 2ND RD LEAD/COPPER RECVD

1 - 36 of 36

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
HILLSBORO-CHERRY GROVE (00985)	11959	Yes	Consecutive Connection	Surface water	Permanent	Active
JOINT WATER COMMISSION (00379)	23370	Yes	Consecutive Connection	Surface water	Permanent	Active
Distribution System	6959	No	Distribution System/Zone	-	-	Active
EP FOR HILLSBORO-CHERRY GROVE/JWC	15255	No	Sampling Station	-	-	Active

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Treatment Processes

No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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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