Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA2410009
PWS Name	CITY OF MERCED
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	93692
County Served	Merced

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, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	111002	Returned to Compliance	01-MAY-2001	31-MAY-2001	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9411001	Returned to Compliance	01-APR-1994	30-APR-1994	Yes

1 - 2 of 2

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9711008	111002	SOX	State Compliance achieved	30-JUN-2001	State	This TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
9511004	9411001	SOX	State Compliance achieved	12-MAY-1994	State	-

1 - 2 of 2

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 06 - RAW - INACTIVE	14758	Yes	Well	Ground water	Other	Inactive
WELL 01B - DESTROYED	14764	Yes	Well	Ground water	Permanent	Inactive
WELL 21 - RAW	67962	Yes	Well	Ground water	Permanent	Active
WELL 20 - RAW	63171	Yes	Well	Ground water	Permanent	Active
WELL 18 - RAW	24059	Yes	Well	Ground water	Permanent	Active
WELL 19 - RAW	24057	Yes	Well	Ground water	Permanent	Active
WELL 10-R2 - RAW	15301	Yes	Well	Ground water	Permanent	Active
WELL 17 - UC MERCED - RAW	15156	Yes	Well	Ground water	Permanent	Active
WELL 07C - RAW	14817	Yes	Well	Ground water	Permanent	Active
WELL 02C - RAW	14809	Yes	Well	Ground water	Permanent	Active
WELL 14 - RAW	14807	Yes	Well	Ground water	Permanent	Active
WELL 13 - RAW	14806	Yes	Well	Ground water	Permanent	Active
WELL 11 - RAW	14805	Yes	Well	Ground water	Permanent	Active
WELL 09 - RAW	14804	Yes	Well	Ground water	Permanent	Active
WELL 08 - RAW	14772	Yes	Well	Ground water	Permanent	Active
WELL 16 - RAW	14768	Yes	Well	Ground water	Permanent	Active
WELL 15 - RAW	14766	Yes	Well	Ground water	Permanent	Active
WELL 01A - RAW	14765	Yes	Well	Ground water	Permanent	Active
WELL 01C - RAW	14763	Yes	Well	Ground water	Permanent	Active
WELL 02A - RAW	14762	Yes	Well	Ground water	Permanent	Active
WELL 02B - RAW	14761	Yes	Well	Ground water	Permanent	Active
WELL 03C - RAW	14760	Yes	Well	Ground water	Permanent	Active
WELL 05B - RAW	14759	Yes	Well	Ground water	Permanent	Active
WELL 10B - DESTROYED 2005	19903	Yes	Well	Ground water	Other	Inactive
WELL 05 - DESTROYED	19899	Yes	Well	Ground water	Other	Inactive
WELL 10A - DESTROYED	19898	Yes	Well	Ground water	Other	Inactive
WELL 04 - DESTROYED 1994	19892	Yes	Well	Ground water	Other	Inactive
WELL 03A - DESTROYED	19886	Yes	Well	Ground water	Other	Inactive
WELL 03B - DESTROYED	19885	Yes	Well	Ground water	Other	Inactive
WELL 07B - RAW - INACTIVE	14816	Yes	Well	Ground water	Other	Inactive
WELL 07A - RAW - INACTIVE	14801	Yes	Well	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	29193	No	Distribution System/Zone	-	-	Active
WELL 02C - TRT CL	4091	No	Treatment Plant	-	-	Active
WELL 02B - TRT CL	4092	No	Treatment Plant	-	-	Active
WELL 03C - PCE GAC TRT	4093	No	Treatment Plant	-	-	Active
WELL 05B - TRT CL & F	4094	No	Treatment Plant	-	-	Active
WELL 08 - TRT CL & F	4098	No	Treatment Plant	-	-	Active
WELL 09 - TRT CL & F	4099	No	Treatment Plant	-	-	Active
WELL 11 - TRT CL & F	4100	No	Treatment Plant	-	-	Active
WELL 14 - TRT CL & F	4102	No	Treatment Plant	-	-	Active
WELL 17 - UC MERCED - TRT CL & F	4104	No	Treatment Plant	-	-	Active
WELL 10-R2 - TRT CL & F	4105	No	Treatment Plant	-	-	Active
WELL 07C - TRT CL	4106	No	Treatment Plant	-	-	Active
WELL 15 - TRT CL & F	4108	No	Treatment Plant	-	-	Active
WELL 16 - TRT CL & F	4109	No	Treatment Plant	-	-	Active
WELL 13 - TRT CL & F	4113	No	Treatment Plant	-	-	Active
WELL 02A - TRT CL	4124	No	Treatment Plant	-	-	Active
WELL 01C - TRT CL	4126	No	Treatment Plant	-	-	Active
WELL 01A - TRT CL	4135	No	Treatment Plant	-	-	Active
WELL 19 - TRT CL & F	55241	No	Treatment Plant	-	-	Active

1 - 50 of 61

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL 02C - TRT CL	4091	Hypochlorination, Post	Disinfection
WELL 02B - TRT CL	4092	Hypochlorination, Post	Disinfection
WELL 03C - PCE GAC TRT	4093	Activated Carbon, Granular	Organics removal
WELL 03C - PCE GAC TRT	4093	Hypochlorination, Pre	Disinfection
WELL 05B - TRT CL & F	4094	Hypochlorination, Pre	Disinfection
WELL 05B - TRT CL & F	4094	Fluoridation	Other
WELL 07A - TREATED - INACTIVE	4096	Hypochlorination, Pre	Disinfection
WELL 07A - TREATED - INACTIVE	4096	Fluoridation	Other
WELL 07B - TREATED - INACTIVE	4097	Hypochlorination, Pre	Disinfection
WELL 07B - TREATED - INACTIVE	4097	Fluoridation	Other
WELL 08 - TRT CL & F	4098	Hypochlorination, Pre	Disinfection
WELL 08 - TRT CL & F	4098	Fluoridation	Other
WELL 09 - TRT CL & F	4099	Hypochlorination, Pre	Disinfection
WELL 09 - TRT CL & F	4099	Fluoridation	Other
WELL 11 - TRT CL & F	4100	Hypochlorination, Pre	Disinfection
WELL 11 - TRT CL & F	4100	Fluoridation	Other
WELL 14 - TRT CL & F	4102	Hypochlorination, Post	Disinfection
WELL 14 - TRT CL & F	4102	Fluoridation	Other
WELL 01B - TRT CL INAC	4103	Hypochlorination, Post	Disinfection
WELL 17 - UC MERCED - TRT CL & F	4104	Fluoridation	Other
WELL 17 - UC MERCED - TRT CL & F	4104	Hypochlorination, Post	Disinfection
WELL 10-R2 - TRT CL & F	4105	Fluoridation	Other
WELL 10-R2 - TRT CL & F	4105	Hypochlorination, Post	Disinfection
WELL 07C - TRT CL	4106	Hypochlorination, Post	Disinfection
WELL 02B - TREATED XCLD	4107	Hypochlorination, Post	Disinfection
WELL 02B - TREATED XCLD	4107	Fluoridation	Other
WELL 15 - TRT CL & F	4108	Fluoridation	Other
WELL 15 - TRT CL & F	4108	Hypochlorination, Post	Disinfection
WELL 16 - TRT CL & F	4109	Fluoridation	Other
WELL 16 - TRT CL & F	4109	Hypochlorination, Post	Disinfection
WELL 13 - TRT CL & F	4113	Hypochlorination, Post	Disinfection
WELL 02A - TRT CL	4124	Hypochlorination, Post	Disinfection
WELL 01C - TRT CL	4126	Hypochlorination, Post	Disinfection
WELL 01A - TRT CL	4135	Hypochlorination, Post	Disinfection
WELL 19 - TRT CL & F	55241	Hypochlorination, Post	Disinfection
WELL 19 - TRT CL & F	55241	Fluoridation	Other
WELL 18 - TRT CL & F	55315	Fluoridation	Other
WELL 18 - TRT CL & F	55315	Hypochlorination, Post	Disinfection
PUMP STATION 2 - BLEND (02A,02B,02C)	6142	Rapid Mix	Inorganics removal
PUMP STATION NO. 7 BLEND (A7,7B,7C) INAC	6143	Rapid Mix	Inorganics removal
WELL 21 - TRT CL & F	67968	Hypochlorination, Post	Disinfection
WELL 21 - TRT CL & F	67968	Fluoridation	Other
WELL 20 - TRT CL & F	68669	Hypochlorination, Post	Disinfection
WELL 20 - TRT CL & F	68669	Fluoridation	Other

1 - 44 of 44

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.

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Nav Menu

Your Drinking Water Query results from SDWIS Fed Reporting Services

Note

PWS Violation

Violations

Column Actions

Enforcement Actions

Enforcement Actions

Column Actions

PWS Facilities

All Facilities

Column Actions

PWS Treatment Processes

Treatment Processes

Column Actions