Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WA5366400
PWS Name	PASCO WATER DEPARTMENT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	115102
County Served	Franklin

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, Regular	Nitrate Rule	Nitrate	2593081	Returned to Compliance	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	2593951	Returned to Compliance	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	25173142015	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	25173142010	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	25173142005	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	25173142959	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	25042532326	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	25173142306	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	25173142274	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	25042532110	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	25173142067	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	25173142065	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	25173142051	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	25173142050	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	25173142042	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	25042532041	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	25042532040	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	25173142039	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	25173142037	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	25173142035	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	25042532031	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	25173142020	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2251165	Returned to Compliance	01-DEC-2017	31-DEC-2017	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1640128	Returned to Compliance	01-JUL-2016	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1027376	Returned to Compliance	01-JUL-2010	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	07982162378	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	07982162380	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	07982162964	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	07982162968	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	07982162969	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	07982162996	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	07982162992	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	07982162991	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	07982162990	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	07982162989	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	07982162987	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	07982162985	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	07982162984	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	07982162983	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	07982162982	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	07982162981	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	07982162980	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	07982162979	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	07982162977	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	07982162976	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	0509737	Returned to Compliance	01-JAN-2006	-	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	93V0001	Known	01-APR-1993	30-APR-1993	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9201253	Known	01-APR-1992	30-APR-1992	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9201841	Known	01-OCT-1991	31-OCT-1991	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	8051450	Known	01-OCT-1979	31-OCT-1979	No

1 - 50 of 50

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3193951ENF	2593951	SOX	State Compliance achieved	11-FEB-2026	State	-
3193081ENF	2593081	SOX	State Compliance achieved	11-FEB-2026	State	-
2251165ENF	2251165	SOX	State Compliance achieved	31-JAN-2018	State	-
40128ENF	1640128	SOX	State Compliance achieved	24-OCT-2016	State	-
27376ENF	1027376	SOX	State Compliance achieved	27-OCT-2010	State	-
CM6	07982162976	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162977	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162979	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162980	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162981	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162983	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162984	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162985	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162987	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162989	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162990	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162991	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162992	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162996	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162969	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162968	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162964	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162380	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162378	SOX	State Compliance achieved	21-MAR-2008	State	-
CM6	07982162982	SOX	State Compliance achieved	21-MAR-2008	State	-
L639	0509737	SOX	State Compliance achieved	31-DEC-2006	State	-
9244283	9201253	SIA	State Violation/Reminder Notice	30-APR-1992	State	-
9210012	9201841	SIF	State Public Notification received	31-OCT-1991	State	-

1 - 28 of 28

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
Columbia River	22331	Yes	Intake	Surface water	Permanent	Active
WP Well 1B	22338	Yes	Well	Ground water	Emergency	Inactive
WP Well 1A	22337	Yes	Well	Ground water	Emergency	Inactive
WP WF/S03,4,7,8	22336	Yes	Well	Ground water	Emergency	Inactive
Dradie St Well 4	22335	Yes	Well	Ground water	Emergency	Inactive
WP Well 3	22334	Yes	Well	Ground water	Emergency	Inactive
WP Well 2	22333	Yes	Well	Ground water	Emergency	Inactive
Well 1A&1B	22332	Yes	Well	Ground water	Emergency	Inactive
Columbia River-West. Pasco WTP	31773	Yes	Intake	Surface water	Permanent	Active
West Pasco WTP	4285	No	Treatment Plant	-	-	Active
Columbia River	4460	No	Treatment Plant	-	-	Active

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
West Pasco WTP	4285	Hypochlorination, Post	Disinfection
West Pasco WTP	4285	Fluoridation	Other
West Pasco WTP	4285	Rapid Mix	Particulate removal
West Pasco WTP	4285	Coagulation	Particulate removal
West Pasco WTP	4285	Filtration, Ultrafiltration	Particulate removal
Columbia River	4460	Gaseous Chlorination, Post	Disinfection
Columbia River	4460	Rapid Mix	Particulate removal
Columbia River	4460	Fluoridation	Other
Columbia River	4460	Coagulation	Particulate removal
Columbia River	4460	Flocculation	Particulate removal
Columbia River	4460	Sedimentation	Particulate removal
Columbia River	4460	Filtration, Rapid Sand	Particulate removal
Columbia River	4460	Permanganate	Taste / odor control
Columbia River	4460	pH Adjustment, Post	Corrosion control

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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