Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	ID4080024
PWS Name	HORSESHOE BEND WATER SUPPLY
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	750
County Served	Boise

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 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	15743	Known	01-DEC-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	15744	Known	01-DEC-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	15742	Known	01-OCT-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	15746	Known	01-OCT-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	15747	Known	01-OCT-2025	31-DEC-2025	No
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	15728	Open	02-JUL-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	15729	Known	01-JUL-2025	30-SEP-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	15727	Known	01-APR-2025	30-JUN-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	15713	Known	01-NOV-2024	30-NOV-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	15712	Known	01-NOV-2024	30-NOV-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	15702	Returned to Compliance	01-APR-2024	30-JUN-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	15675	Returned to Compliance	01-JAN-2023	31-MAR-2023	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	15613	Known	15-OCT-2017	15-NOV-2017	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	15614	Known	01-OCT-2017	01-NOV-2017	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	15611	Returned to Compliance	01-AUG-2017	31-AUG-2017	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	15597	Known	01-JUL-2015	30-SEP-2015	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	15587	Known	01-OCT-2013	31-DEC-2013	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	15553	Known	01-NOV-2011	30-NOV-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	15545	Known	01-JUL-2011	30-SEP-2011	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	15542	Known	01-JUL-2011	31-JUL-2011	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	15510	Known	01-FEB-2009	28-FEB-2009	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	15511	Known	01-JAN-2009	31-MAR-2009	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	14208	Known	01-JAN-2008	31-MAR-2008	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	13007	Returned to Compliance	01-MAY-2007	31-MAY-2007	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	13507	Returned to Compliance	01-MAY-2007	31-MAY-2007	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	12807	Returned to Compliance	01-FEB-2007	28-FEB-2007	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	12907	Returned to Compliance	01-JAN-2007	31-JAN-2007	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	12707	Returned to Compliance	01-JAN-2007	31-JAN-2007	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	12207	Returned to Compliance	01-OCT-2006	31-OCT-2006	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	11907	Returned to Compliance	01-SEP-2006	30-SEP-2006	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	11807	Returned to Compliance	01-AUG-2006	31-AUG-2006	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	11707	Returned to Compliance	01-JUL-2006	31-JUL-2006	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	11506	Returned to Compliance	01-MAY-2006	31-MAY-2006	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	11406	Returned to Compliance	01-MAY-2006	31-MAY-2006	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	11306	Returned to Compliance	01-APR-2006	30-APR-2006	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	10806	Returned to Compliance	01-MAR-2006	31-MAR-2006	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	10606	Returned to Compliance	01-JAN-2006	31-JAN-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	9705	Returned to Compliance	01-APR-2005	30-JUN-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	9305	Returned to Compliance	01-OCT-2004	31-DEC-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	9005	Returned to Compliance	01-JUL-2004	30-SEP-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8705	Returned to Compliance	01-APR-2004	30-JUN-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8405	Returned to Compliance	01-JAN-2004	31-MAR-2004	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	8204	Returned to Compliance	01-JAN-2003	31-DEC-2003	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	7202	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	7802	Returned to Compliance	01-OCT-1998	31-DEC-2000	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	198	Known	01-SEP-1998	30-SEP-1998	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	298	Known	01-AUG-1998	31-AUG-1998	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	398	Known	01-JUL-1998	31-JUL-1998	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	498	Known	01-JUN-1998	30-JUN-1998	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	598	Known	01-MAY-1998	31-MAY-1998	Yes

1 - 50 of 113

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
411753	15675	SOX	State Compliance achieved	16-DEC-2025	State	Bromate collected 4Q24 and 1Q25
411753	15702	SOX	State Compliance achieved	16-DEC-2025	State	Bromate collected 4Q24 and 1Q25
411752	15729	SIE	State Public Notification requested	22-NOV-2025	State	-
411750	15728	SIE	State Public Notification requested	16-AUG-2025	State	-
411748	15727	SIE	State Public Notification requested	16-AUG-2025	State	-
411744	15712	SIE	State Public Notification requested	19-JAN-2025	State	-
411746	15713	SIE	State Public Notification requested	19-JAN-2025	State	-
411723	15611	SOX	State Compliance achieved	29-JUN-2018	State	TC Sample taken subsequent month after; on 09/14/2017. chlorine Residual was 0.5 (SK)
411716	15613	SIE	State Public Notification requested	14-DEC-2017	State	-
411718	15614	SIE	State Public Notification requested	14-DEC-2017	State	-
411712	15597	SIE	State Public Notification requested	09-NOV-2015	State	-
411708	13507	SOX	State Compliance achieved	22-FEB-2008	State	Reports were received. BL
411708	13007	SOX	State Compliance achieved	22-FEB-2008	State	Reports were received. BL
411607	11406	SOX	State Compliance achieved	12-MAR-2007	State	returned to compliance
411107	12907	SOX	State Compliance achieved	12-MAR-2007	State	Cl residual sampling back in compliance
411107	12807	SOX	State Compliance achieved	12-MAR-2007	State	Cl residual sampling back in compliance
411107	12707	SOX	State Compliance achieved	12-MAR-2007	State	Cl residual sampling back in compliance
411107	12207	SOX	State Compliance achieved	12-MAR-2007	State	Cl residual sampling back in compliance
411107	9705	SOX	State Compliance achieved	12-MAR-2007	State	Cl residual sampling back in compliance
411507	10806	SOX	State Compliance achieved	12-MAR-2007	State	not valid
411607	10606	SOX	State Compliance achieved	12-MAR-2007	State	returned to compliance
411607	11306	SOX	State Compliance achieved	12-MAR-2007	State	returned to compliance
411607	11506	SOX	State Compliance achieved	12-MAR-2007	State	returned to compliance
411607	11707	SOX	State Compliance achieved	12-MAR-2007	State	returned to compliance
411607	11807	SOX	State Compliance achieved	12-MAR-2007	State	returned to compliance
411607	11907	SOX	State Compliance achieved	12-MAR-2007	State	returned to compliance
411107	8405	SOX	State Compliance achieved	12-MAR-2007	State	Cl residual sampling back in compliance
411207	8705	SOX	State Compliance achieved	12-MAR-2007	State	Cl residual sampling back in compliance
411307	9005	SOX	State Compliance achieved	12-MAR-2007	State	Cl residual sampling back in compliance
411407	9305	SOX	State Compliance achieved	12-MAR-2007	State	Cl residual sampling back in compliance
411004	8204	SOX	State Compliance achieved	12-APR-2004	State	-
410903	7202	SOX	State Compliance achieved	18-MAR-2003	State	-
410803	7802	SOX	State Compliance achieved	18-DEC-2002	State	MIGRATED AS SOLUTION TO FED FY DATE PROBLEM PER HW
5499	6196	SFL	State Administrative/Compliance Order without penalty issued	05-MAY-1999	State	SWTR VCO
5599	5293	SFL	State Administrative/Compliance Order without penalty issued	30-NOV-1998	State	SWTR VCO
57097	2597	SOX	State Compliance achieved	10-JUL-1997	State	SYSTEM GENERATED ENFORCEMENT

1 - 36 of 36

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
PAYETTE UPPER	4637	Yes	Intake	Surface water	Permanent	Active
PAYETTE LOWER	4881	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	6864	No	Distribution System/Zone	-	-	Active
TOTAL STORAGE CAPACITY	9359	No	Other	-	-	Active
MANIFOLD - PAYETTE RIVER	5040	No	Transmission Main (Manifold)	-	-	Active
PAYETTE RIVER FINISHED TP	280	No	Treatment Plant	-	-	Active

1 - 6 of 6

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PAYETTE RIVER FINISHED TP	280	Ozonation, Post	Disinfection
PAYETTE RIVER FINISHED TP	280	Hypochlorination, Post	Disinfection
PAYETTE RIVER FINISHED TP	280	Filtration, Rapid Sand	Particulate removal
PAYETTE RIVER FINISHED TP	280	4-Log Remove/Inactivate Viruses	Disinfection
PAYETTE RIVER FINISHED TP	280	Flocculation	Particulate removal
PAYETTE RIVER FINISHED TP	280	Innovative	Other
PAYETTE RIVER FINISHED TP	280	Coagulation	Particulate removal
PAYETTE RIVER FINISHED TP	280	Sedimentation	Inorganics removal

1 - 8 of 8

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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