Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WY5600023
PWS Name	GUERNSEY, TOWN OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1157
County Served	Platte

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	4000953	Returned to Compliance	01-MAR-2025	31-MAR-2025	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	4000951	Returned to Compliance	01-OCT-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	4000950	Returned to Compliance	01-JAN-2024	31-JAN-2024	No
MR	Monitoring, Regular	Inorganic Chemicals	Asbestos	4000941	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4000873	Returned to Compliance	01-APR-2011	30-APR-2011	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4000809	Returned to Compliance	01-OCT-2010	31-OCT-2010	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	4000810	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4000807	Returned to Compliance	01-SEP-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4000805	Returned to Compliance	01-AUG-2009	31-AUG-2009	Yes
MR	Monitoring, Regular	Arsenic Rule	Arsenic	4000811	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	4000814	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	4000862	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	4000861	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	4000860	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	4000859	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	4000858	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	4000857	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	4000856	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	4000855	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	4000854	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	4000853	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	4000852	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	4000851	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	4000850	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	4000849	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	4000848	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	4000847	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	4000846	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	4000823	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	4000822	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	4000821	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	4000870	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	4000869	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	4000845	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	4000844	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	4000843	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	4000842	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	4000841	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	4000840	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	4000839	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	4000838	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	4000837	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	4000836	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	4000835	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	4000834	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	4000833	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	4000832	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	4000831	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	4000830	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	4000829	Returned to Compliance	01-JAN-2008	31-DEC-2010	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
438	4000951	SOX	State Compliance achieved	21-NOV-2025	Region	-
437	4000953	SOX	State Compliance achieved	07-APR-2025	Region	PWS RTC'd when two samples were collected on 04/07/2025. jsh 9/3/25
430	4000950	SOX	State Compliance achieved	06-FEB-2024	Region	PWS RTC'd when EPA received 2 samples collected 02/06/2024. JSH 5/31/24
426	4000941	SOX	State Compliance achieved	18-DEC-2019	Region	-
420	4000805	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000807	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000809	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000810	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000846	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000847	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000848	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000849	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000850	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000851	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000852	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000853	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000854	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000855	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000856	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000857	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000858	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000859	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000860	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000861	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000862	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000863	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000864	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000865	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000866	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000867	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000868	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000869	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000870	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
420	4000871	EFL	Federal Final Administrative Order issued	06-SEP-2011	Region	-
415	4000825	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000844	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000843	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000842	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000841	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000840	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000839	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000811	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000812	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000813	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000814	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000815	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000816	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000817	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000818	SOX	State Compliance achieved	08-JUN-2011	Region	-
415	4000821	SOX	State Compliance achieved	08-JUN-2011	Region	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL #3	11930	Yes	Well	Ground water	Permanent	Active
WELL #2-ABANDONED	11929	Yes	Well	Ground water	Permanent	Inactive
WELL #1-ABANDONED	11928	Yes	Well	Ground water	Permanent	Inactive
WELL #5	20369	Yes	Well	Ground water	Permanent	Active
WELL #4	17114	Yes	Well	Ground water	Permanent	Active
TOWN OF GUERNSEY	11931	No	Distribution System/Zone	-	-	Active
GUERNSEY, TOWN OF	14514	No	Other	-	-	Inactive
BOOSTER PUMP STATION (3)	19279	No	Pump Facility	-	-	Active
STORAGE TANK (1MG)	16193	No	Storage	-	-	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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