Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA1910155
PWS Name	GSWC - SOUTHWEST
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	277740
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
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	1216003	Returned to Compliance	21-NOV-2014	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1216002	Returned to Compliance	01-NOV-2011	30-NOV-2011	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	716001	Returned to Compliance	01-JUN-2007	30-JUN-2007	No

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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
9416016	1216003	SOX	State Compliance achieved	01-DEC-2014	State	CITATION #04-16-15C-001 ISSUED 1/14/15 FOR GWR VIOLATION 34 INCURRED NOVEMBER 2014.
9416015	1216002	SOX	State Compliance achieved	30-DEC-2011	State	Citation #04-16-12C-016 issued 12/28/12 for November 2011 TCR MCL violation.
816054	716001	SOX	State Compliance achieved	05-OCT-2007	State	ENF_NO:NOV OF TCR MCL; WATER SYSTEM COMPLIANCE TCR

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
HAWTHORNE CC-141ST/INGLEWOOD AVENUE	69070	Yes	Consecutive Connection	Surface water	Emergency	Active
DALTON WELL 02	62174	Yes	Well	Ground water	Permanent	Active
SOUTHERN WELL 05	10148	Yes	Well	Ground water	Permanent	Active
DOTY WELL 02	10147	Yes	Well	Ground water	Permanent	Active
DOTY WELL 01	10146	Yes	Well	Ground water	Permanent	Active
GOLDMEDAL WELL 01	10145	Yes	Well	Ground water	Permanent	Active
DALTON WELL 01	10135	Yes	Well	Ground water	Permanent	Active
COMPTON-DOTY WELL	10110	Yes	Well	Ground water	Permanent	Active
SOUTHERN WELL 06	10108	Yes	Well	Ground water	Permanent	Active
BELHAVEN WELL 04	10101	Yes	Well	Ground water	Permanent	Active
BELHAVEN WELL 03	10097	Yes	Well	Ground water	Permanent	Active
BALLONA WELL 04	10092	Yes	Well	Ground water	Permanent	Active
BALLONA WELL 05	10091	Yes	Well	Ground water	Permanent	Active
129TH STREET WELL 02	10090	Yes	Well	Ground water	Permanent	Active
TRURO WELL 04 - INACTIVE	CA1910155040	Yes	Well	Ground water	Other	Inactive
CERISE WELL - INACTIVE	20513	Yes	Well	Ground water	Other	Inactive
BALLONA WELL 03 - INACTIVE	20504	Yes	Well	Ground water	Other	Inactive
BELHAVEN WELL 01 - INACTIVE	20502	Yes	Well	Ground water	Other	Inactive
CHICAGO WELL 01 - INACTIVE	20495	Yes	Well	Ground water	Other	Inactive
EL SEGUNDO-WEST WELL 01 - INACTIVE	20493	Yes	Well	Ground water	Other	Inactive
TRURO WELL 04 - DESTROYED	20246	Yes	Well	Ground water	Other	Inactive
CHADRON WELL 02 - DESTROYED	18078	Yes	Well	Ground water	Other	Inactive
129TH STREET - DESTROYED	18039	Yes	Well	Ground water	Other	Inactive
157TH STREET WELL - DESTROYED	18038	Yes	Well	Ground water	Other	Inactive
CHADRON WELL 01 - DESTROYED	18036	Yes	Well	Ground water	Other	Inactive
SOUTHERN WELL 03 - DESTROYED	17885	Yes	Well	Ground water	Other	Inactive
OCEAN GATE WELL 02 - DESTROYED	17855	Yes	Well	Ground water	Other	Inactive
YUKON WELL 03 - DESTROYED	17854	Yes	Well	Ground water	Other	Inactive
YUKON WELL 02 - DESTROYED	17853	Yes	Well	Ground water	Other	Inactive
YUKON WELL 01 - DESTROYED	17852	Yes	Well	Ground water	Other	Inactive
WILTON WELL 01 - DESTROYED	17851	Yes	Well	Ground water	Other	Inactive
WELL 15-A - DESTROYED	17849	Yes	Well	Ground water	Other	Inactive
TRURO WELL 02 - DESTROYED	17848	Yes	Well	Ground water	Other	Inactive
TRURO WELL 01 - DESTROYED	17847	Yes	Well	Ground water	Other	Inactive
SOUTHERN WELL 04 - DESTROYED	17846	Yes	Well	Ground water	Other	Inactive
YUKON WELL 05-DESTROYED 12/27/22	10089	Yes	Well	Ground water	Other	Inactive
YUKON WELL 04-DESTROYED 12/27/22	10088	Yes	Well	Ground water	Other	Inactive
HAWTHORNE CC-EL SEGUNDO AVE/INGLEWOOD AV	69071	Yes	Consecutive Connection	Surface water	Emergency	Active
HAWTHORNE CC-118TH STREET/PRAIRIE AVENUE	69072	Yes	Consecutive Connection	Surface water	Emergency	Active
INGLEWOOD CC-104TH STREET/YUKON AVENUE	69073	Yes	Consecutive Connection	Surface water	Emergency	Active
INGLEWOOD CC-CENTURY BLVD/YUKON AVENUE	69074	Yes	Consecutive Connection	Surface water	Emergency	Active
INGLEWOOD CC-CENTURY BLVD/PRAIRIE AVENUE	69075	Yes	Consecutive Connection	Surface water	Emergency	Active
INGLEWOOD CC-CENTURY BLVD/LA CIENEGA	69076	Yes	Consecutive Connection	Surface water	Emergency	Active
INGLEWOOD CC-95TH STREET/REDFERN AVENUE	69077	Yes	Consecutive Connection	Surface water	Emergency	Active
INGLEWOOD CC-111TH/CRENSHAW BLVD	69078	Yes	Consecutive Connection	Surface water	Emergency	Active
CWS CC-VICTORIA ST BTWN RAINBURY&TAMCLIF	69079	Yes	Consecutive Connection	Surface water	Emergency	Active
LIBERTY UTIL. CC-S. CENTRAL/W. CALDWELL	69080	Yes	Consecutive Connection	Surface water	Emergency	Active
LIBERTY UTIL. CC-S. STANFORD/E. COMPTON	69081	Yes	Consecutive Connection	Surface water	Emergency	Active
LADWP CC-CENTURY BLVD/WILTON AVENUE	69082	Yes	Consecutive Connection	Surface water	Emergency	Active
MWD CONNECTION CENB4 - TREATED	28476	Yes	Consecutive Connection	Surface water	Permanent	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TRURO TREATMENT PLANT EFFLUENT	3617	Aeration, Spray	Taste / odor control
TRURO TREATMENT PLANT EFFLUENT	3617	Hypochlorination, Pre	Iron removal
TRURO TREATMENT PLANT EFFLUENT	3617	Filtration, Pressure Sand	Iron removal
TRURO TREATMENT PLANT EFFLUENT	3617	Filtration, Greensand	Manganese removal
TRURO TREATMENT PLANT EFFLUENT	3617	Hypochlorination, Pre	Manganese removal
129TH ST WELL 02 - CHLORAMINE	3651	Chloramines	Disinfection
TRURO WELL 04 - CHLORAMINE	3653	Chloramines	Disinfection
GOLDMEDAL WELL 01 - CHLORAMINE	3654	Chloramines	Disinfection
SOUTHERN PLANT EAST SOUTHERN WELL 6 CHLO	3655	Chloramines	Disinfection
SOUTHERN WELL 05 - CHLORAMINE	3656	Chloramines	Disinfection
BALLONA WELL 04 - CHLORAMINE	3657	Chloramines	Disinfection
CHARDON RESERVOIR - CHLORAMINE	3658	Chloramines	Disinfection
COMPTON-DOTY WELL - CHLORAMINE	3659	Chloramines	Disinfection
DALTON PLANT WELL 1- CHLORAMINATION & FL	3660	Chloramines	Disinfection
BALLONA WELL 05-CL2 & CORR CONTROL XCLD	3664	Chloramines	Disinfection
BELHAVEN WELL 04 - TREATED-INACTIVE	3665	Chloramines	Disinfection
BELLHAVEN WELLS 03 & 04 - CHLORAMINE	6166	Chloramines	Disinfection
COMBINED YUKON WELLS 04 & 05-CHLORAMINE	6169	Chloramines	Disinfection
COMBINED DOTY WELLS 01 & 02 - CHLORAMINE	6176	Chloramines	Disinfection
GOLDMEDAL TREATMENT PLANT EFFLUENT	6213	Filtration, Greensand	Manganese removal
GOLDMEDAL TREATMENT PLANT EFFLUENT	6213	Hypochlorination, Pre	Manganese removal
DOTY WELLS 01 & 02 - FE/MN REMOVAL	6233	Filtration, Greensand	Iron removal
DOTY WELLS 01 & 02 - FE/MN REMOVAL	6233	Filtration, Greensand	Manganese removal
SOUTHERN WELL 05-PLANT EFFLUENT	6234	Filtration, Greensand	Iron removal
DOTY FILTRATION PLANT (FE, MN) EFFLUENT	6238	Filtration, Greensand	Manganese removal
DALTON PLANT WELL 2 -CHLORAMINATION & FL	65895	Chloramines	Disinfection
DALTON PLANT WELL 2 -CHLORAMINATION & FL	65895	Fluoridation	Other
FILTER EFFLUENT	69083	Filtration, Greensand	Manganese removal
FILTER EFFLUENT	69083	Filtration, Greensand	Iron removal
BELHAVEN 03 & 04 - FE/MN REMOVAL	69085	Filtration, Greensand	Manganese removal
BELHAVEN 03 & 04 - FE/MN REMOVAL	69085	Filtration, Greensand	Iron removal
129TH ST WELL 02 - FE/MN REMOVAL	69086	Filtration, Greensand	Iron removal
129TH ST WELL 02 - FE/MN REMOVAL	69086	Filtration, Greensand	Manganese removal
157TH STREET WELL - CHLORAMINE - STANDBY	7274	Chloramines	Disinfection
BALLONA WELL 05 - CHLORAMINE	74091	Chloramines	Disinfection
BALLONA 04 & 05 - MN REMOVAL	74092	Filtration, Greensand	Manganese removal
DALTON 01 & 02 - MN REMOVAL	74241	Filtration, Greensand	Manganese removal
DALTON 01 & 02 - MN REMOVAL	74241	Chloramines	Disinfection
DALTON 01 & 02 - MN REMOVAL	74241	Fluoridation	Other

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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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