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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.

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Violations

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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
Other	Notification, Public	Miscellaneous Other Rules	-	8700581	Known	01-APR-1987	30-APR-1987	No

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Enforcement Actions

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No enforcement action(s) found. EPA has no record of enforcement action(s) reported by the primacy agency for this water system.

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
UPLAND INTERCONNECT PS3A - EMERGENCY	57541	Yes	Consecutive Connection	Surface water	Emergency	Active
WELL 26 - INACTIVE	10446	Yes	Well	Ground water	Permanent	Inactive
WELL 33 - INACTIVE	10440	Yes	Well	Ground water	Permanent	Inactive
WELL 48	71786	Yes	Well	Ground water	Permanent	Active
WELL 49	71688	Yes	Well	Ground water	Permanent	Active
WELL 46 - COCA COLA WELL	23869	Yes	Well	Ground water	Permanent	Active
WELL 23	10454	Yes	Well	Ground water	Permanent	Active
WELL 24	10448	Yes	Well	Ground water	Permanent	Active
WELL 30	10445	Yes	Well	Ground water	Permanent	Active
WELL 31	10443	Yes	Well	Ground water	Permanent	Active
WELL 40	10396	Yes	Well	Ground water	Permanent	Active
WELL 38	10392	Yes	Well	Ground water	Permanent	Active
WELL 42	10391	Yes	Well	Ground water	Permanent	Active
WELL 41	10390	Yes	Well	Ground water	Permanent	Active
WELL 43	10373	Yes	Well	Ground water	Permanent	Active
TUNNEL 'A'	10371	Yes	Well	Ground water	Permanent	Active
WELL 39	10370	Yes	Well	Ground water	Permanent	Active
HERMOSA TUNNEL	10365	Yes	Well	Ground water	Permanent	Active
THAYER TUNNEL	10363	Yes	Well	Ground water	Permanent	Active
WELL 05	10361	Yes	Well	Ground water	Permanent	Active
WELL 17	10360	Yes	Well	Ground water	Permanent	Active
WELL 19	10358	Yes	Well	Ground water	Permanent	Active
WELL 04	10353	Yes	Well	Ground water	Permanent	Active
WELL 01	10343	Yes	Well	Ground water	Permanent	Active
WELL 13	10341	Yes	Well	Ground water	Permanent	Active
SMITH TUNNEL	10356	Yes	Well	Ground water under the influence of surface water	Permanent	Active
BEE TUNNEL	10342	Yes	Well	Ground water under the influence of surface water	Permanent	Active
WELL 23 - INACTIVE	CA3610018033	Yes	Well	Ground water	Other	Inactive
WELL 17 - INACTIVE	CA3610018027	Yes	Well	Ground water	Other	Inactive
WELL 27 - ABANDONED	7434	Yes	Well	Ground water	Other	Inactive
WELL 18 - INACTIVE	20006	Yes	Well	Ground water	Other	Inactive
WELL 14 - INACTIVE	20005	Yes	Well	Ground water	Other	Inactive
WELL 34 - INACTIVE	10447	Yes	Well	Ground water	Other	Inactive
WELL 22 - INACTIVE	10418	Yes	Well	Ground water	Other	Inactive
WELL 20 - INACTIVE	10389	Yes	Well	Ground water	Other	Inactive
WELL 15 - INACTIVE	10369	Yes	Well	Ground water	Other	Inactive
WELL 16 - INACTIVE	10368	Yes	Well	Ground water	Other	Inactive
WELL 12 - INACTIVE	10364	Yes	Well	Ground water	Other	Inactive
WELL 10 - INACTIVE	10362	Yes	Well	Ground water	Other	Inactive
WELL 21 - INACTIVE	10355	Yes	Well	Ground water	Other	Inactive
WELL 08 - INACTIVE	10354	Yes	Well	Ground water	Other	Inactive
WELL 03 - INACTIVE	10350	Yes	Well	Ground water	Other	Inactive
LOWER KALAMITY TUNNEL - INACTIVE	20000	Yes	Well	Ground water under the influence of surface water	Other	Inactive
FAN TUNNEL - INACTIVE	19948	Yes	Well	Ground water under the influence of surface water	Other	Inactive
CUCAMONGA CANYON CREEK	72637	Yes	Intake	Surface water	Seasonal	Active
MWD PURCHASED WATER - RAW	57537	Yes	Intake	Surface water	Permanent	Active
EAST CANYON	30634	Yes	Intake	Surface water	Permanent	Active
DAY CANYON	30632	Yes	Intake	Surface water	Permanent	Active
ONTARIO INTERCONNECT 10"-EMERGENCY-DELIV	74033	Yes	Consecutive Connection	Surface water	Emergency	Active
ONTARIO INTERCONNECT 2"-EMERGENCY-RECEIV	74034	Yes	Consecutive Connection	Surface water	Emergency	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
ROYER NESBITT WTP - TREATED	4140	pH Adjustment, Post	Corrosion control
ROYER NESBITT WTP - TREATED	4140	Filtered	Particulate removal
RESERVOIR 8B TREATED-DEER CREEK SOURCES	4141	Gaseous Chlorination, Pre	Disinfection
ARTHUR BRIDGE WTP - TREATED	4148	pH Adjustment, Post	Corrosion control
ARTHUR BRIDGE WTP - TREATED	4148	Gaseous Chlorination, Post	Disinfection
ARTHUR BRIDGE WTP - TREATED	4148	Filtered	Particulate removal
LLOYD MICHAEL WTP - TREATED	4171	pH Adjustment, Post	Corrosion control
LLOYD MICHAEL WTP - TREATED	4171	Ultraviolet Radiation	Disinfection
LLOYD MICHAEL WTP - TREATED	4171	Hypochlorination, Post	Disinfection
LLOYD MICHAEL WTP - TREATED	4171	Activated Carbon, Granular	Disinfection by-products control
LLOYD MICHAEL WTP - TREATED	4171	Coagulation	Particulate removal
LLOYD MICHAEL WTP - TREATED	4171	Flocculation	Particulate removal
LLOYD MICHAEL WTP - TREATED	4171	Filtered	Particulate removal
RESERVOIR 1B - TREATED (CL2)	45276	Hypochlorination, Post	Disinfection
RESERVOIR 1C - TREATED (CL2)	45277	Hypochlorination, Post	Disinfection
WELL 19 GAC - TREATED	57739	Activated Carbon, Granular	Organics removal
RESERVOIR 3-1 - TREATED	6085	Rapid Mix	Inorganics removal
RESERVOIR 3-1 - TREATED	6085	Hypochlorination, Post	Disinfection
RESERVOIR 1 - TREATED	6175	Rapid Mix	Inorganics removal
RESERVOIR 1 - TREATED	6175	Hypochlorination, Post	Disinfection
RESERVOIR 2A - TREATED	6225	Rapid Mix	Inorganics removal
RESERVOIR 2A - TREATED	6225	Hypochlorination, Post	Disinfection
RESERVOIR 3A - TREATED	6226	Rapid Mix	Inorganics removal
RESERVOIR 3A - TREATED	6226	Hypochlorination, Post	Disinfection

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