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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.

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Violations

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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	2354464	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1435876	Returned to Compliance	01-JUL-2014	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1645361	Returned to Compliance	01-JAN-2014	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1228429	Returned to Compliance	01-JAN-2010	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	08145121025	Returned to Compliance	01-JUL-2008	30-SEP-2008	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	04595601025	Returned to Compliance	01-OCT-2004	31-DEC-2004	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9752741	Known	01-OCT-1996	31-OCT-1996	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9500498	Known	19-OCT-1994	18-NOV-1994	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9425439	Known	01-JAN-1994	31-JAN-1994	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9202393	Known	01-SEP-1992	30-SEP-1992	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	8051572	Known	01-OCT-1979	31-OCT-1979	No

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3054464ENF	2354464	SOX	State Compliance achieved	12-MAR-2024	State	-
1645361ENF	1645361	SOX	State Compliance achieved	09-AUG-2017	State	-
35876ENF	1435876	SOX	State Compliance achieved	15-OCT-2014	State	-
1228429ENF	1228429	SOX	State Compliance achieved	25-SEP-2013	State	-
CM133	08145121025	SOX	State Compliance achieved	28-SEP-2009	State	-
CM2085	04595601025	SOX	State Compliance achieved	05-DEC-2005	State	-
9710019	9752741	SIF	State Public Notification received	31-OCT-1996	State	-
9530004	9500498	SIA	State Violation/Reminder Notice	19-NOV-1994	State	-
9400461	9425439	SIA	State Violation/Reminder Notice	31-JAN-1994	State	-
9227508	9202393	SIA	State Violation/Reminder Notice	30-SEP-1992	State	-

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
Welll #2	22785	Yes	Well	Ground water	Emergency	Inactive
Prosser Well #7	34522	Yes	Well	Ground water	Permanent	Active
WF/S03,S04,S07,S08	30472	Yes	Well	Ground water	Permanent	Active
Well #4B - AAS231	29190	Yes	Well	Ground water	Permanent	Active
Well #6 - AHA107	22789	Yes	Well	Ground water	Permanent	Active
Well #5 - AHA106	22788	Yes	Well	Ground water	Permanent	Active
Well #3 - AHA105	22786	Yes	Well	Ground water	Permanent	Active
Well #4 - AHA104	22787	Yes	Well	Ground water	Emergency	Inactive
All Sources + Wellfield	2761	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
All Sources + Wellfield	2761	Hypochlorination, Post	Disinfection
All Sources + Wellfield	2761	Permanganate	Iron removal
All Sources + Wellfield	2761	Filtration, Pressure Sand	Iron removal
All Sources + Wellfield	2761	Aeration, Spray	Taste / odor control

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