Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NN3500287
PWS Name	Canoncito
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	Yes
Population Served	1326
County Served

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	35002873A800092025	Known	01-SEP-2025	30-SEP-2025	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800082025	Known	01-AUG-2025	31-AUG-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	350028727099972025	Known	01-JUL-2025	30-SEP-2025	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800072025	Known	01-JUL-2025	31-JUL-2025	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800062025	Known	01-JUN-2025	30-JUN-2025	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750062025	Open	01-JUN-2025	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800052025	Known	01-MAY-2025	31-MAY-2025	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750052025	Open	01-MAY-2025	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	350028734301452025	Open	01-MAY-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	350028727099942025	Known	01-APR-2025	30-JUN-2025	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002874B800042025	Open	01-APR-2025	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002874B800032025	Returned to Compliance	01-MAR-2025	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750022025	Returned to Compliance	01-FEB-2025	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800022025	Returned to Compliance	01-FEB-2025	28-FEB-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	350028727099912025	Returned to Compliance	01-JAN-2025	31-MAR-2025	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002874B800012025	Returned to Compliance	01-JAN-2025	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A8000122024	Returned to Compliance	01-DEC-2024	31-DEC-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	3500287757500122024	Returned to Compliance	01-DEC-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	3500287757500112024	Returned to Compliance	01-NOV-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A8000112024	Returned to Compliance	01-NOV-2024	30-NOV-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A8000102024	Returned to Compliance	01-OCT-2024	31-OCT-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3500287270999102024	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	3500287757500102024	Returned to Compliance	01-OCT-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750092024	Returned to Compliance	01-SEP-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800092024	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800082024	Returned to Compliance	01-AUG-2024	31-AUG-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750082024	Returned to Compliance	01-AUG-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750072024	Returned to Compliance	01-JUL-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	350028727099972024	Returned to Compliance	01-JUL-2024	30-SEP-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800072024	Returned to Compliance	01-JUL-2024	31-JUL-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800062024	Returned to Compliance	01-JUN-2024	30-JUN-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750062024	Returned to Compliance	01-JUN-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800052024	Returned to Compliance	01-MAY-2024	31-MAY-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750052024	Returned to Compliance	01-MAY-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800042024	Returned to Compliance	01-APR-2024	30-APR-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	350028727099942024	Returned to Compliance	01-APR-2024	30-JUN-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750042024	Returned to Compliance	01-APR-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800032024	Returned to Compliance	01-MAR-2024	31-MAR-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750032024	Returned to Compliance	01-MAR-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800022024	Returned to Compliance	01-FEB-2024	29-FEB-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750022024	Returned to Compliance	01-FEB-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A800012024	Returned to Compliance	01-JAN-2024	31-JAN-2024	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	350028703104012024	Returned to Compliance	01-JAN-2024	31-DEC-2024	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	350028703104112024	Returned to Compliance	01-JAN-2024	31-DEC-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	350028775750012024	Returned to Compliance	01-JAN-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	350028727099912024	Returned to Compliance	01-JAN-2024	31-MAR-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A8000112023	Returned to Compliance	01-NOV-2023	30-NOV-2023	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	3500287757500112023	Returned to Compliance	01-NOV-2023	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35002873A8000102023	Returned to Compliance	01-OCT-2023	31-OCT-2023	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	3500287757500102023	Returned to Compliance	01-OCT-2023	-	No

1 - 50 of 525

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3500287FJ12052542972	350028734301452025	SFJ	State Formal Notice of Violation issued	05-DEC-2025	State	NOV issued for failure to collect a source sample for a positive May bactee sample of 2025.
3500287FJ12052542973	350028727099942025	SFJ	State Formal Notice of Violation issued	05-DEC-2025	State	NOV issued for failure to collect a chlorine residual during the 2nd Calendar quarter 2025.
3500287FJ12052542974	35002874B800042025	SFJ	State Formal Notice of Violation issued	05-DEC-2025	State	NOV issued for submitting a bactee result not in a timely manner.
3500287FJ12052542971	35002873A800062025	SFJ	State Formal Notice of Violation issued	05-DEC-2025	State	NOV issued for failure to collect a May and June bactee sample.
3500287FJ12052542970	35002873A800052025	SFJ	State Formal Notice of Violation issued	05-DEC-2025	State	NOV issued for failure to collect a May and June bactee sample.
3500287OX10082542939	350028775750022025	SOX	State Compliance achieved	08-OCT-2025	State	PN Received for failure to sample total coliforms.
3500287OX10062542773	3500287757500122024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542774	3500287757500112024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542775	3500287757500102024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542776	350028775750092024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542777	350028775750082024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542778	350028775750072024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542779	350028775750062024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542780	350028775750052024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542781	350028775750042024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542782	350028775750032024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542784	350028775750022024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10062542783	350028775750012024	SOX	State Compliance achieved	06-OCT-2025	State	RTC - Tier 3 Public Notice Received.
3500287OX10012543086	350028703104112024	SOX	State Compliance achieved	01-OCT-2025	State	RTC Well #5 Sampled.
3500287OX10012543085	350028703104012024	SOX	State Compliance achieved	01-OCT-2025	State	RTC Well #5 Sampled.
3500287FJ08042542676	35002874B800012025	SFJ	State Formal Notice of Violation issued	04-AUG-2025	State	NOV, PN required (Tier 3).
3500287FJ08042542677	35002874B800032025	SFJ	State Formal Notice of Violation issued	04-AUG-2025	State	NOV, PN required (Tier 3).
3500287FJ08042542678	35002873A800022025	SFJ	State Formal Notice of Violation issued	04-AUG-2025	State	NOV issued for failure to collect a February bactee sample.
3500287FJ08042542679	350028727099912025	SFJ	State Formal Notice of Violation issued	04-AUG-2025	State	NOV issued for failure to report a chlorine residual during January-March 2025.
3500287FJ04172542044	35002873A8000112024	SFJ	State Formal Notice of Violation issued	17-APR-2025	State	NOV, PN required.
3500287FJ04172542045	35002873A8000122024	SFJ	State Formal Notice of Violation issued	17-APR-2025	State	NOV, PN required.
3500287FJ04172542043	35002873A8000102024	SFJ	State Formal Notice of Violation issued	17-APR-2025	State	NOV, PN required.
3500287FJ04172542046	3500287270999102024	SFJ	State Formal Notice of Violation issued	17-APR-2025	State	NOV issued for failure to collect a chlorine residual during the month of October, 2024.
3500287FJ03072542058	35002873A800082024	SFJ	State Formal Notice of Violation issued	07-MAR-2025	State	NOV, PN required.
3500287FJ03072542057	35002873A800072024	SFJ	State Formal Notice of Violation issued	07-MAR-2025	State	NOV, PN required.
3500287FJ03072542059	35002873A800092024	SFJ	State Formal Notice of Violation issued	07-MAR-2025	State	NOV, PN required.
3500287FJ03072542060	350028727099972024	SFJ	State Formal Notice of Violation issued	07-MAR-2025	State	NOV issued for failure to collect a chlorine residual during the 3Qtr 2024 (July, August, September).
3500287OX12102442562	350028727099912024	SOX	State Compliance achieved	10-DEC-2024	State	Free chlorine residual collected by operator.
3500287OX12102442554	35002873A800052024	SOX	State Compliance achieved	10-DEC-2024	State	Sampled for total coliforms, results negative.
3500287OX12102442553	35002873A800042024	SOX	State Compliance achieved	10-DEC-2024	State	Sampled for total coliforms, results negative.
3500287OX12102442550	35002873A800032024	SOX	State Compliance achieved	10-DEC-2024	State	Sampled for total coliforms, results negative.
3500287OX12102442552	35002873A800022024	SOX	State Compliance achieved	10-DEC-2024	State	Sampled for total coliforms, results negative.
3500287OX12102442551	35002873A800012024	SOX	State Compliance achieved	10-DEC-2024	State	Sampled for total coliforms, results negative.
3500287OX12102442563	350028727099942024	SOX	State Compliance achieved	10-DEC-2024	State	Free chlorine residual collected by operator.
3500287OX12102442555	35002873A800062024	SOX	State Compliance achieved	10-DEC-2024	State	Sampled for total coliforms, results negative.
3500287OX11042441380	3500287757500112023	SOX	State Compliance achieved	04-NOV-2024	State	CCR Received with notices to the public regarding M/R RTCR Violations for June, July & October 2023
3500287OX11042441381	3500287757500102023	SOX	State Compliance achieved	04-NOV-2024	State	CCR Received with notices to the public regarding M/R RTCR Violations for June, July & October 2023
3500287OX11042441379	350028775750072023	SOX	State Compliance achieved	04-NOV-2024	State	CCR Received with notices to the public regarding M/R RTCR Violations for June, July & October 2023
3500287OX11042441378	350028775750062023	SOX	State Compliance achieved	04-NOV-2024	State	CCR Received with notices to the public regarding M/R RTCR Violations for June, July & October 2023
3500287OX11042441377	350028775750022023	SOX	State Compliance achieved	04-NOV-2024	State	CCR Received with notices to the public regarding M/R RTCR Violations for June, July & October 2023
3500287OX11042441376	350028775750012023	SOX	State Compliance achieved	04-NOV-2024	State	CCR Received with notices to the public regarding M/R RTCR Violations for June, July & October 2023
3500287OX10102442730	350028771700072023	SOX	State Compliance achieved	10-OCT-2024	State	CCR Certificaiton form received.
3500287FJ12292340657	350028775750042023	SFJ	State Formal Notice of Violation issued	29-DEC-2023	State	NOV, PN required.
3500287OX12202340826	3500287270999102023	SOX	State Compliance achieved	20-DEC-2023	State	2023 Oct, Nov Chlorine Residual Monitoring. Return-To-Compliance. Full sample set collected 12/20/2023.
3500287OX12202340825	35002873A8000112023	SOX	State Compliance achieved	20-DEC-2023	State	2023 November RTCR Monitoring. Return-To-Compliance. Full sample set collected 12/20/2023.

1 - 50 of 418

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
21-UNK-0019 (CANONCITO 1)	3500287GW001	Yes	Well	Ground water	Other	Inactive
Well # 5	3500287GW005	Yes	Well	Ground water	Permanent	Active
CANONCITO 3 (CANONCITO 3)	3500287GW003	Yes	Well	Ground water	Other	Inactive
21-UNK-0020 (CANONCITO 2)	3500287GW002	Yes	Well	Ground water	Other	Inactive
Entry Point to PWS NN3500287 Distribution System	3500287EP001	No	Common Headers	-	-	Active
NN3500287 Cañoncito Distribution System	3500287DS001	No	Distribution System/Zone	-	-	Active
Canoncito Booster Station #1	3500287PF001	No	Pump Facility	-	-	Active
Canoncito Booster Station #2	3500287PF002	No	Pump Facility	-	-	Active
Tank #1 (Chapter)	3500287ST001	No	Storage	-	-	Active
Tank #2 (West)	3500287ST002	No	Storage	-	-	Active
Tank #3 (North)	3500287ST003	No	Storage	-	-	Active
Tank #4 (East)	3500287ST004	No	Storage	-	-	Active
Tank #5 (New)	3500287ST005	No	Storage	-	-	Active
CANONCITO Well # 5 Treatment Plant	3500287TP006	No	Treatment Plant	-	-	Active
CANONCITO #1 Treatment Plant	3500287TP005	No	Treatment Plant	-	-	Inactive

1 - 15 of 15

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CANONCITO Well # 5 Treatment Plant	3500287TP006	Hypochlorination, Post	Disinfection

1 - 1 of 1

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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