Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA1910126
PWS Name	POMONA - CITY, WATER DEPT.
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	151713
County Served	Los Angeles

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
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9307001	Returned to Compliance	01-JUN-1993	30-JUN-1997	Yes

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9815020	9307001	SOX	State Compliance achieved	13-OCT-1995	State	ENF_NO:04-15-95CO-006; AMENDMENT TO 04-07-94CO-012,EXTEND SWTR COMPLIANCE DATE

1 - 1 of 1

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MWD CONNECTION, PM-11 AT BOOSTER - TRTD	28410	Yes	Consecutive Connection	Surface water	Permanent	Active
WELL 16	9281	Yes	Well	Ground water	Permanent	Active
WELL 23	9279	Yes	Well	Ground water	Permanent	Active
WELL 21	9277	Yes	Well	Ground water	Permanent	Active
WELL 25	9274	Yes	Well	Ground water	Permanent	Active
WELL 17	9273	Yes	Well	Ground water	Permanent	Active
WELL 26	9272	Yes	Well	Ground water	Permanent	Active
WELL 15	9271	Yes	Well	Ground water	Permanent	Active
WELL 10	9266	Yes	Well	Ground water	Permanent	Active
TUNNEL WELL 03	9264	Yes	Well	Ground water	Permanent	Active
WELL 08B	9261	Yes	Well	Ground water	Permanent	Active
WELL 05B	9260	Yes	Well	Ground water	Permanent	Active
TUNNEL WELL 02	9256	Yes	Well	Ground water	Permanent	Active
TUNNEL WELL 01	9254	Yes	Well	Ground water	Permanent	Active
TUNNEL WELL 04	9249	Yes	Well	Ground water	Permanent	Active
WELL 37	8593	Yes	Well	Ground water	Permanent	Active
WELL 02	8583	Yes	Well	Ground water	Permanent	Active
WELL 06	8570	Yes	Well	Ground water	Permanent	Active
WELL 03	8555	Yes	Well	Ground water	Permanent	Active
WELL 36	8551	Yes	Well	Ground water	Permanent	Active
WELL 32	23814	Yes	Well	Ground water	Permanent	Active
WELL 27	15734	Yes	Well	Ground water	Permanent	Active
WELL 28	15730	Yes	Well	Ground water	Permanent	Active
WELL 24B - PENDING	CA1910126039	Yes	Well	Ground water	Other	Inactive
WELL 20 - PENDING	CA1910126020	Yes	Well	Ground water	Other	Inactive
WELL 11	CA1910126011	Yes	Well	Ground water	Other	Inactive
WELL 34 - INACTIVE	9288	Yes	Well	Ground water	Other	Inactive
WELL 14 - INACTIVE	9270	Yes	Well	Ground water	Other	Inactive
WELL 13 - INACTIVE	9269	Yes	Well	Ground water	Other	Inactive
WELL 11 - INACTIVE	9267	Yes	Well	Ground water	Other	Inactive
WELL 18 - INACTIVE	9265	Yes	Well	Ground water	Other	Inactive
WELL 09B - INACTIVE	9262	Yes	Well	Ground water	Other	Inactive
WELL 29 - INACTIVE	9252	Yes	Well	Ground water	Other	Inactive
WELL 07 - INACTIVE	8571	Yes	Well	Ground water	Other	Inactive
WELL 06 - ABANDONED	7540	Yes	Well	Ground water	Other	Inactive
WELL 05 - ABANDONED	7531	Yes	Well	Ground water	Other	Inactive
WELL 04 - ABANDONED	7480	Yes	Well	Ground water	Other	Inactive
WELL 03 - ABANDONED	7479	Yes	Well	Ground water	Other	Inactive
WELL 02 - ABANDONED	7478	Yes	Well	Ground water	Other	Inactive
WELL 01 - ABANDONED	7477	Yes	Well	Ground water	Other	Inactive
WELL 12 - INACTIVE	24542	Yes	Well	Ground water	Other	Inactive
WELL 24B - DESTROYED	23815	Yes	Well	Ground water	Other	Inactive
WELL 19 - RECLAIMED SYSTEM - INACTIVE	22243	Yes	Well	Ground water	Other	Inactive
WELL 20 - INACTIVE	22209	Yes	Well	Ground water	Other	Inactive
WELL 24 - INACTIVE	22190	Yes	Well	Ground water	Other	Inactive
WELL 33 - INACTIVE	22189	Yes	Well	Ground water	Other	Inactive
WELL 22 - INACTIVE	22178	Yes	Well	Ground water	Other	Inactive
WELL 01B - INACTIVE	22177	Yes	Well	Ground water	Other	Inactive
WELL 31 - RECLAIMED SYSTEM - INACTIVE	20367	Yes	Well	Ground water	Other	Inactive
WELL 30 - INACTIVE	20366	Yes	Well	Ground water	Other	Inactive

1 - 50 of 105

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL 03 AIR STRIPPER	3099	Hypochlorination, Post	Disinfection
WELL 03 AIR STRIPPER	3099	Aeration, Packed Tower	Organics removal
ANION EXCHANGE PLANT 3 INFLUENT	57156	Ion Exchange	Inorganics removal
ANION EXCHANGE PLANT 3 EFFLUENT	57157	Ion Exchange	Inorganics removal
ANION EXCHANGE PLANT 1 & 2	57200	Rapid Mix	Inorganics removal
ANION EXCHANGE PLANT 1 & 2	57200	Ion Exchange	Inorganics removal
WELL 27 WELLHEAD DISINFECTION	59703	Hypochlorination, Post	Disinfection
WELL 28 WELLHEAD DISINFECTION	59705	Hypochlorination, Post	Disinfection
WELL 29 IX TREATMENT FACILITY - TREATED	5983	Ion Exchange	Inorganics removal
WELLS 7, 8B, & 32 AIR STRIPPER	5987	Aeration, Packed Tower	Disinfection by-products control
RESERVOIR 6 -BLENDING FOR NO3 & CLO4	5992	4-Log Treatment of Viruses	Disinfection
RESERVOIR 6 -BLENDING FOR NO3 & CLO4	5992	Rapid Mix	Inorganics removal
WELL 37 IX FOR NO3 & CLO4	5996	Ion Exchange	Inorganics removal
RESERVOIR 13 - TREATED	6008	Hypochlorination, Post	Disinfection
PEDLEY FILTRATION PLANT - TREATED	6036	Filtered	Particulate removal
PEDLEY FILTRATION PLANT - TREATED	6036	Hypochlorination, Post	Disinfection
PEDLEY FILTRATION PLANT - TREATED	6036	Sedimentation	Particulate removal
PEDLEY FILTRATION PLANT - TREATED	6036	Coagulation	Particulate removal
ANION EXCHANGE PLANT - 3	6037	Rapid Mix	Inorganics removal
ANION EXCHANGE PLANT - 3	6037	Ion Exchange	Inorganics removal
RESERVOIR 5 - BLENDING FOR NO3 & CLO4	6038	4-Log Treatment of Viruses	Disinfection
RESERVOIR 5 - BLENDING FOR NO3 & CLO4	6038	Rapid Mix	Inorganics removal
RESERVOIR 2 - NITRATE BLENDING	6056	Rapid Mix	Inorganics removal
WELL 5B - GAC TREATMENT PLANT	64788	Activated Carbon, Granular	Organics removal
WELL 6 - GAC TREATMENT PLANT	64795	Activated Carbon, Granular	Organics removal
WELL 16 - GAC TREATMENT PLANT	64796	Activated Carbon, Granular	Organics removal
WELL 17 - GAC TREATMENT PLANT	64797	Activated Carbon, Granular	Organics removal

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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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