Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA1910022
PWS Name	CALIF STATE POLYTECHNICAL UNIV - POMONA
PWS Type	Community water system
Owner Type	State or Territorial Government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	29854
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
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	9307041	Open	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	9307042	Open	17-OCT-2024	-	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	9307040	Returned to Compliance	01-JUL-2024	30-SEP-2024	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	9307020	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	9307034	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	9307033	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	9307011	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	9307012	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	9307015	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	9307016	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	9307017	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	9307018	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	9307019	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	9307035	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	9307022	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	9307023	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	9307024	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	9307025	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	9307026	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	9307027	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	9307028	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	9307029	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	9307031	Known	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	9307032	Known	01-JAN-2021	31-DEC-2021	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	9307008	Returned to Compliance	01-JAN-2017	31-MAR-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1122007	Returned to Compliance	01-APR-2011	30-JUN-2011	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9307006	Returned to Compliance	01-JAN-1993	31-JAN-1993	Yes

1 - 27 of 27

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9915022	9307040	SOX	State Compliance achieved	11-AUG-2025	State	Monitoring Violation and failure to comply with Permit Condition
9915018	9307008	SOX	State Compliance achieved	31-DEC-2017	State	-
1122039	1122007	SOX	State Compliance achieved	28-APR-2011	State	ENF_NO:04-22-11C-027; AVERAGE REDUCED BELOW MCL
9815013	9307006	SOX	State Compliance achieved	12-MAR-1993	State	ENF_NO:CIT.#04-93; BACTI FALURE, JANUARY'93

1 - 4 of 4

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MWD CONNECTION - TREATED	28095	Yes	Consecutive Connection	Surface water	Permanent	Active
WELL 01	11613	Yes	Well	Ground water	Permanent	Active
WELL 01 - DESTROYED	18365	Yes	Well	Ground water	Other	Inactive
WELL 02 - INACTIVE	11611	Yes	Well	Ground water	Other	Inactive
UPPER RESERVOIR EFFLUENT	58538	Yes	Reservoir	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	28094	No	Distribution System/Zone	-	-	Active
RO-WTP INFLUENT	64067	No	Sampling Station	-	-	Active
UPPER RESERVOIR EFFLUENT	75153	No	Sampling Station	-	-	Active
UPPER RESERVOIR	70760	No	Storage	-	-	Active
LOWER RESERVOIR	70761	No	Storage	-	-	Active
WELL 01 - CHLORINATION	5268	No	Treatment Plant	-	-	Active
WTP RO EFFLUENT TRAIN 1	58535	No	Treatment Plant	-	-	Active
WTP RO EFFLUENT TRAIN 2	58536	No	Treatment Plant	-	-	Active
LOWER RESERVOIR INFLUENT	58537	No	Treatment Plant	-	-	Active
RO-WTP AFTER BLND/POST CL OPERATION CTRL	64065	No	Treatment Plant	-	-	Active
LOWER RESERVOIR (4 LOG CT)	72585	No	Treatment Plant	-	-	Active
WELL 02 - CHLORINATION	5267	No	Treatment Plant	-	-	Inactive
WELL 01 & MWD WATER BLEND	5908	No	Treatment Plant	-	-	Inactive

1 - 18 of 18

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL 01 - CHLORINATION	5268	Hypochlorination, Post	Disinfection
WTP RO EFFLUENT TRAIN 1	58535	Reverse Osmosis	Inorganics removal
WTP RO EFFLUENT TRAIN 2	58536	Reverse Osmosis	Inorganics removal
LOWER RESERVOIR INFLUENT	58537	Hypochlorination, Post	Disinfection
WELL 01 & MWD WATER BLEND	5908	Rapid Mix	Inorganics removal
RO-WTP AFTER BLND/POST CL OPERATION CTRL	64065	Hypochlorination, Post	Disinfection
LOWER RESERVOIR (4 LOG CT)	72585	4-Log Remove/Inactivate Viruses	Disinfection

1 - 7 of 7

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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