Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	090605017
PWS Name	San Pasqual District A
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Surface water purchased
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	1225
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
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	060501703400612025	Returned to Compliance	01-JAN-2025	31-MAR-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	060501703401012025	Returned to Compliance	01-JAN-2025	31-MAR-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	060501703400012025	Returned to Compliance	01-JAN-2025	31-MAR-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	060501703401072023	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	060501703100572022	Returned to Compliance	01-JUL-2022	30-SEP-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	06050173A800062022	Returned to Compliance	01-JUN-2022	30-JUN-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	06050173A800072021	Returned to Compliance	01-JUL-2021	31-JUL-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	060501703206312020	Returned to Compliance	01-JAN-2020	31-DEC-2022	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	060501703104012010	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	060501724310062009	Returned to Compliance	01-JUN-2009	30-JUN-2009	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	060501722310052009	Returned to Compliance	01-MAY-2009	31-MAY-2009	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	060501771700072007	Returned to Compliance	01-JUL-2007	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	060501771700072006	Returned to Compliance	01-JUL-2006	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	060501727245612006	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	060501703104012006	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	060501727295012006	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	060501703104012005	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	060501771700072004	Returned to Compliance	01-JUL-2004	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	060501703299212004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	060501703296412004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	060501703104012003	Returned to Compliance	01-JAN-2003	31-DEC-2003	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	060501723310072002	Returned to Compliance	01-JUL-2002	31-JUL-2002	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	060501771700072002	Returned to Compliance	01-JUL-2002	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	060501723310062002	Returned to Compliance	01-JUN-2002	30-JUN-2002	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	060501723310022002	Returned to Compliance	01-FEB-2002	28-FEB-2002	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	060501703104012002	Returned to Compliance	01-JAN-2002	31-DEC-2002	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0605017233100112001	Returned to Compliance	01-NOV-2001	30-NOV-2001	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	060501771700072001	Returned to Compliance	01-JUL-2001	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	060501771700072000	Returned to Compliance	01-JUL-2000	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	060501723310022000	Returned to Compliance	01-FEB-2000	29-FEB-2000	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	060501703402011999	Returned to Compliance	01-JAN-1999	31-DEC-1999	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	060501723310031998	Returned to Compliance	01-MAR-1998	31-MAR-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	060501703206511998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	060501703108511998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	060501703294611998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	060501703293111998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	060501703298411998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	060501703297711998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	060501703295911998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	060501703295511998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	060501703232611998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	060501703230611998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	060501703227411998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	060501703104111998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	060501703102411998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	060501703238311998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	060501703206711998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	060501703107511998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	060501703206311998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	060501703205111998	Returned to Compliance	01-JAN-1998	31-DEC-1998	No

1 - 50 of 87

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
0605017OX06132512214	060501703400612025	EOX	Federal Compliance achieved	13-JUN-2025	Region	Subsequent reporting of required results.
0605017OX06132512215	060501703400012025	EOX	Federal Compliance achieved	13-JUN-2025	Region	Subsequent reporting of required results.
0605017OX06132512214	060501703401012025	EOX	Federal Compliance achieved	13-JUN-2025	Region	Subsequent reporting of required results.
0605017OX10182311675	060501703401072023	EOX	Federal Compliance achieved	18-OCT-2023	Region	Subsequent reporting of required results.
0605017OX12122211455	060501703100572022	EOX	Federal Compliance achieved	12-DEC-2022	Region	Subsequent reporting of required results.
0605017OX07132211264	06050173A800072021	EOX	Federal Compliance achieved	13-JUL-2022	Region	Subsequent reporting of required results.
0605017OX06152211264	06050173A800062022	EOX	Federal Compliance achieved	15-JUN-2022	Region	Subsequent reporting of required results.
0605017OX12312011455	060501703206312020	EOX	Federal Compliance achieved	31-DEC-2020	Region	Submission of required documentation.
0605017OX03291162077	060501703104012010	EOX	Federal Compliance achieved	29-MAR-2011	Region	Operator forgot the 2010 nitrate; corrected with submittal of the 3/24/11 sample in response to letter of violation.
0605017OX01211043529	060501703102411998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043530	060501703104012005	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043491	060501703104012006	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043509	060501703107511998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043539	060501703108511998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043521	060501703109411996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043507	060501703109411998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043547	060501703200511996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043481	060501703200511998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043504	060501703201011996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043505	060501703201511996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043484	060501703202011996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043560	060501703203111998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043483	060501703203211998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043502	060501703203311998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043493	060501703203411998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043543	060501703203511998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043550	060501703203611998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043510	060501703203711998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043508	060501703203911998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043478	060501703204011998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043528	060501703204111998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043476	060501703204211998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043519	060501703204611996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043490	060501703204611998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043477	060501703205011996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043515	060501703205011998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043514	060501703205111996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043512	060501703205111998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043536	060501703206311998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043537	060501703206511996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043485	060501703206511998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043488	060501703206711996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043542	060501703206711998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043518	060501703210511996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043534	060501703211011996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043535	060501703227411998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043479	060501703230611998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043561	060501703232611996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043497	060501703232611998	EOX	Federal Compliance achieved	21-JAN-2010	Region	-
0605017OX01211043527	060501703238311996	EOX	Federal Compliance achieved	21-JAN-2010	Region	-

1 - 50 of 87

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
Consecutive Connection from VCMWD	0605017SW001	Yes	Consecutive Connection	Surface water	Permanent	Active
Well 3	0605017GW003	Yes	Well	Ground water	Permanent	Active
Well 4	0605017GW004	Yes	Well	Ground water	Other	Inactive
Well #2	0605017GW002	Yes	Well	Ground water	Emergency	Inactive
Well #1	0605017GW001	Yes	Well	Ground water	Emergency	Inactive
Entry Point for Well 4	0605017EP001	No	Common Headers	-	-	Active
Consecutive Connection from VCMWD to PWS#0605017	0605017EP002	No	Common Headers	-	-	Active
Entry Point for Well 3	0605017EP003	No	Common Headers	-	-	Active
PWS# 0605017 distribution system	0605017DS001	No	Distribution System/Zone	-	-	Active
District A Booster Pump Pressure Control Assembly	0605017HP001	No	Pressure Control	-	-	Active
Oos Road Pressure Control Assembly	0605017HP002	No	Pressure Control	-	-	Active
Well 3 Pressure Control Assembly	0605017HP003	No	Pressure Control	-	-	Inactive
District A Booster Pumping Facility	0605017PF001	No	Pump Facility	-	-	Active
Oos Road Pumping Facility	0605017PF002	No	Pump Facility	-	-	Active
District A Storage Tank 1	0605017ST001	No	Storage	-	-	Active
Iron and Manganese Greensand Filter for Well 4	0605017TP004	No	Treatment Plant	-	-	Inactive
Treatment for Well 3	0605017TP005	No	Treatment Plant	-	-	Inactive

1 - 17 of 17

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
Iron and Manganese Greensand Filter for Well 4	0605017TP004	Hypochlorination, Pre	Disinfection
Iron and Manganese Greensand Filter for Well 4	0605017TP004	Filtration, Slow Sand	Iron removal
Treatment for Well 3	0605017TP005	Hypochlorination, Post	Disinfection

1 - 3 of 3

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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