Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA3610055
PWS Name	YUCAIPA VALLEY WATER DISTRICT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	52010
County Served	San Bernardino

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
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	9113009	Returned to Compliance	01-JUL-2024	30-SEP-2024	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9113003	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	9113008	Returned to Compliance	13-APR-2021	-	No
MR	Monitoring, Check/Repeat/Confirmation	Nitrate Rule	Nitrate	9113007	Returned to Compliance	01-APR-2021	30-JUN-2021	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	9113006	Returned to Compliance	21-JUL-2019	-	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	9113004	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	9113005	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	9113002	Returned to Compliance	01-JUN-2016	-	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9113001	Returned to Compliance	01-JUN-1991	30-JUN-1991	Yes

1 - 9 of 9

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9913031	9113009	SOX	State Compliance achieved	07-OCT-2025	State	Return to compliance with the disinfection byproducts maximum contaminant level primary standard.
9913029	9113005	SOX	State Compliance achieved	19-OCT-2023	State	-
9913029	9113008	SOX	State Compliance achieved	19-OCT-2023	State	-
9913029	9113003	SOX	State Compliance achieved	19-OCT-2023	State	-
9913029	9113004	SOX	State Compliance achieved	19-OCT-2023	State	-
9913029	9113006	SOX	State Compliance achieved	19-OCT-2023	State	-
9913029	9113007	SOX	State Compliance achieved	19-OCT-2023	State	-
9913027	9113002	SOX	State Compliance achieved	23-JUN-2017	State	-
9713013	9113001	SOX	State Compliance achieved	01-OCT-1996	State	SYSTEM RETURNED TO COMPLIANCE RETURNED TO COMPLIANCE WITH THE REQUIREMENTS OF SWTR

1 - 9 of 9

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
SOUTH MESA WC - EMERGENCY INTERTIE	68149	Yes	Consecutive Connection	Ground water	Emergency	Active
WELL 16 - INACTIVE	9224	Yes	Well	Ground water	Permanent	Inactive
WELL 25 - ADAMS TUNNEL - INACTIVE	9244	Yes	Well	Ground water under the influence of surface water	Permanent	Inactive
WELL 67 HORIZONTAL	9247	Yes	Well	Ground water	Permanent	Active
WELL 18	9246	Yes	Well	Ground water	Permanent	Active
WELL 27	9242	Yes	Well	Ground water	Permanent	Active
WELL 44 - BRYANT	9238	Yes	Well	Ground water	Permanent	Active
WELL 46	9237	Yes	Well	Ground water	Permanent	Active
WELL NO. 56	9223	Yes	Well	Ground water	Permanent	Active
WELL 66 HORIZONTAL	9222	Yes	Well	Ground water	Permanent	Active
WELL 55	9216	Yes	Well	Ground water	Permanent	Active
WELL 75	9214	Yes	Well	Ground water	Permanent	Active
WELL 61	9213	Yes	Well	Ground water	Permanent	Active
WELL 48	9212	Yes	Well	Ground water	Permanent	Active
WELL 53	9211	Yes	Well	Ground water	Permanent	Active
WELL 51	9206	Yes	Well	Ground water	Permanent	Active
WELL 69 HORIZONTAL	9198	Yes	Well	Ground water	Permanent	Active
WELL 73	9197	Yes	Well	Ground water	Permanent	Active
WELL 68 HORIZONTAL	9194	Yes	Well	Ground water	Permanent	Active
WELL 70 HORIZONTAL	9191	Yes	Well	Ground water	Permanent	Active
WELL 72	9186	Yes	Well	Ground water	Permanent	Active
WELL 71 HORIZONTAL	9184	Yes	Well	Ground water	Permanent	Active
WELL 35	CA3610055068	Yes	Well	Ground water	Other	Inactive
WELL 40 - INACTIVE	9248	Yes	Well	Ground water	Other	Inactive
WELL 24 - INACTIVE	9245	Yes	Well	Ground water	Other	Inactive
WELL 26 - MESA	9243	Yes	Well	Ground water	Other	Inactive
WELL 14 - INACTIVE	9241	Yes	Well	Ground water	Other	Inactive
WELL 37 - INACITVE	9240	Yes	Well	Ground water	Other	Inactive
WELL 12 - INACTIVE	9239	Yes	Well	Ground water	Other	Inactive
WELL 35 - INACTIVE	9236	Yes	Well	Ground water	Other	Inactive
WELL 28 - INACTIVE	9232	Yes	Well	Ground water	Other	Inactive
WELL 02 - INACTIVE	9221	Yes	Well	Ground water	Other	Inactive
WELL 04 - INACTIVE	9219	Yes	Well	Ground water	Other	Inactive
WELL 10 - INACTIVE	9218	Yes	Well	Ground water	Other	Inactive
WELL 11 - INACTIVE	9217	Yes	Well	Ground water	Other	Inactive
WELL 07 - INACTIVE	9208	Yes	Well	Ground water	Other	Inactive
WELL 74 - INACTIVE	9199	Yes	Well	Ground water	Other	Inactive
WELL 21 - ABANDONED	7443	Yes	Well	Ground water	Other	Inactive
WELL 02 - ABANDONED (HV SLACK WSC)	7349	Yes	Well	Ground water	Other	Inactive
WELL 03 - ABANDONED (HV SLACK WSC)	7348	Yes	Well	Ground water	Other	Inactive
UPPER STANLEY 45 - ABANDONED	7326	Yes	Well	Ground water	Other	Inactive
POTATO CANYON TUNNEL - INACTIVE	24245	Yes	Well	Ground water	Other	Inactive
WELL 63 - INACTIVE	24241	Yes	Well	Ground water	Other	Inactive
WELL 60 - INACTIVE	24239	Yes	Well	Ground water	Other	Inactive
WELL 62 - INACTIVE	24238	Yes	Well	Ground water	Other	Inactive
WELL 64 - INACTIVE	24237	Yes	Well	Ground water	Other	Inactive
WELL 20 - INACTIVE	20274	Yes	Well	Ground water	Other	Inactive
WELL 13 - INACTIVE	20273	Yes	Well	Ground water	Other	Inactive
WELL 19 - INACTIVE	20262	Yes	Well	Ground water	Other	Inactive
WELL 22 - INACTIVE	20260	Yes	Well	Ground water	Other	Inactive

1 - 50 of 103

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL 61 - TREATED	4230	Hypochlorination, Post	Disinfection
WELL 55 - TREATED	4243	Hypochlorination, Post	Disinfection
OAK GLEN TREATMENT PLANT COMPOSITE-INAC	4244	pH Adjustment, Post	Corrosion control
OAK GLEN TREATMENT PLANT COMPOSITE-INAC	4244	Filtered	Particulate removal
WELL 48 - TREATED	4252	Hypochlorination, Post	Disinfection
WELL 02 - TREATED (CL2)	45478	Hypochlorination, Post	Disinfection
WELL 10 - TREATED (CL2) INACTIVE	45479	Hypochlorination, Post	Disinfection
WELL 12 - TREATED (CL2)	45480	Hypochlorination, Post	Disinfection
WELL 14 - TREATED (CL2)	45481	Hypochlorination, Post	Disinfection
WELL 18 - TREATED (CL2)	45482	Hypochlorination, Post	Disinfection
WELL 24 - TREATED (CL2)	45483	Hypochlorination, Post	Disinfection
WELL 26 - MESA - TREATED (CL2) INACTIVE	45484	Hypochlorination, Post	Disinfection
WELL 27 - TREATED (CL2)	45485	Hypochlorination, Post	Disinfection
WELL 28 - TREATED (CL2) INACTIVE	45486	Hypochlorination, Post	Disinfection
WELL 35 - TREATED (CL2) INACTIVE	45487	Hypochlorination, Post	Disinfection
WELL 37 - TREATED (CL2)	45488	Hypochlorination, Post	Disinfection
WELL 44 - BRYANT - TREATED (CL2)	45489	Hypochlorination, Post	Disinfection
WELL 46 - TREATED (CL2)	45490	Hypochlorination, Post	Disinfection
WELL 51 - TREATED (CL2)	45491	Hypochlorination, Post	Disinfection
WELL 53 - TREATED (CL2)	45492	Hypochlorination, Post	Disinfection
WELL NO. 56 - TREATED (CL2)	45497	Hypochlorination, Post	Disinfection
WELLS 72 - 75 COMPOSITE - TREATED	6149	Hypochlorination, Post	Disinfection
WELLS 66 - 71 COMPOSITE - TREATED	6150	Hypochlorination, Post	Disinfection
TREATED EFFLUENT (RWFF)	6151	pH Adjustment, Post	Corrosion control
TREATED EFFLUENT (RWFF)	6151	Filtered	Particulate removal

1 - 25 of 25

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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