Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OR4100313
PWS Name	LA WATER CO-OP
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	2500
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	900803930	Known	01-JAN-2026	31-MAR-2026	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	900803931	Known	01-JAN-2026	31-MAR-2026	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	900803925	Known	01-OCT-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	900803926	Known	01-OCT-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	900803927	Known	01-JUL-2025	30-SEP-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	900803928	Known	01-JUL-2025	30-SEP-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	900803924	Returned to Compliance	01-JAN-2025	31-MAR-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	900803923	Returned to Compliance	01-JAN-2025	31-MAR-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	900803922	Returned to Compliance	01-JUL-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	900803920	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	900803921	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	900803918	Returned to Compliance	01-JUL-2022	30-SEP-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	900803919	Returned to Compliance	01-JUL-2022	30-SEP-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	900803916	Returned to Compliance	01-APR-2018	30-JUN-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	900803917	Returned to Compliance	01-APR-2018	30-JUN-2018	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	900803913	Returned to Compliance	01-OCT-2017	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	900803914	Returned to Compliance	01-JUL-2017	30-SEP-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	900803915	Returned to Compliance	01-JUL-2017	30-SEP-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	900803911	Returned to Compliance	01-APR-2016	30-JUN-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	900803912	Returned to Compliance	01-APR-2016	30-JUN-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	900803909	Returned to Compliance	01-JAN-2015	31-MAR-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	900803910	Returned to Compliance	01-JAN-2015	31-MAR-2015	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	803905	Returned to Compliance	01-DEC-2004	31-DEC-2004	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	803504	Returned to Compliance	01-NOV-2003	30-NOV-2003	No
TT	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Lead and Copper Rule	410800	Returned to Compliance	02-JAN-2002	-	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1801	Returned to Compliance	01-OCT-2000	31-OCT-2000	No
Other	Operations Report	Miscellaneous Other Rules	-	802898	Returned to Compliance	01-JUN-1997	27-SEP-2001	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	71395	Returned to Compliance	01-DEC-1994	31-DEC-1994	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	466194	Returned to Compliance	01-JUL-1994	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	421394	Returned to Compliance	01-JAN-1994	-	No

1 - 30 of 30

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
8970416	900803924	SOX	State Compliance achieved	26-JUN-2025	State	-
8970416	900803923	SOX	State Compliance achieved	26-JUN-2025	State	-
8970415	900803922	SOX	State Compliance achieved	25-JUL-2024	State	-
8970414	900803921	SOX	State Compliance achieved	04-OCT-2023	State	-
8970414	900803920	SOX	State Compliance achieved	04-OCT-2023	State	-
8970413	900803919	SOX	State Compliance achieved	03-NOV-2022	State	-
8970413	900803918	SOX	State Compliance achieved	03-NOV-2022	State	-
8970411	900803913	SOX	State Compliance achieved	07-AUG-2018	State	-
8970412	900803917	SOX	State Compliance achieved	25-JUL-2018	State	-
8970412	900803916	SOX	State Compliance achieved	25-JUL-2018	State	-
8970410	900803915	SOX	State Compliance achieved	01-DEC-2017	State	-
8970410	900803914	SOX	State Compliance achieved	01-DEC-2017	State	-
8970409	900803911	SOX	State Compliance achieved	26-AUG-2016	State	-
8970409	900803912	SOX	State Compliance achieved	26-AUG-2016	State	-
8970408	900803910	SOX	State Compliance achieved	20-MAY-2015	State	-
8970408	900803909	SOX	State Compliance achieved	20-MAY-2015	State	-
5	802898	SOX	State Compliance achieved	01-JAN-2007	State	-
8970405	410800	SOX	State Compliance achieved	26-JUL-2005	State	VALIDATED
4	803905	SOX	State Compliance achieved	10-JAN-2005	State	-
8970004	803504	SIF	State Public Notification received	05-JAN-2004	State	VALIDATED
1	1801	SOX	State Compliance achieved	23-JUL-2001	State	-
2	71395	SOX	State Compliance achieved	23-JUL-2001	State	-
8899796	466194	SOX	State Compliance achieved	22-JUN-1995	State	VALIDATED 2ND RD LEAD/COPPER RECVD
8941596	421394	SOX	State Compliance achieved	31-JAN-1995	State	VALIDATED 1ST RD LEAD/COPPER RECVD

1 - 24 of 24

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
HILLSBORO-CHERRY GROVE (00985)	11960	Yes	Consecutive Connection	Surface water	Emergency	Inactive
JOINT WATER COMMISSION (41-00379)	25432	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	6960	No	Distribution System/Zone	-	-	Active
EP FOR JOINT WATER COMMISSION	25433	No	Sampling Station	-	-	Active
EP FOR HILLSBORO-CHERRY GROVE (00985)	15256	No	Sampling Station	-	-	Inactive

1 - 5 of 5

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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