U.S. flag

An official website of the United States government

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA3702104
PWS NameMHC TT INC. (DBA PIO PICO)
PWS TypeCommunity water system
Owner TypePrivate
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served828
County ServedSan Diego

Note


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.

PWS Violation


Violations

Violation Category CodeViolation Type DescriptionRule NameContaminant NameViolation IDCompliance Status DescriptionCompliance Period Begin DateCompliance Period End DateIs Health Based Ind
RPTReport Sample Result/Fail Monitor (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule902901Returned to Compliance08-JAN-2019 - No
MCLMaximum Contaminant Level Violation, Acute (TCR)Total Coliform RuleColiform (TCR)902900Returned to Compliance01-JAN-200931-MAR-2009Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)902845Returned to Compliance01-JAN-200931-MAR-2009Yes
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)802809Returned to Compliance01-JUL-200830-SEP-2008No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)802572Returned to Compliance01-OCT-200731-DEC-2007No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)702472Returned to Compliance01-JUL-200730-SEP-2007Yes
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)501801Returned to Compliance01-APR-200530-JUN-2005No
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U8111760Known30-OCT-198029-OCT-1981No
  • 1 - 8 of 8

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
903574902901SOXState Compliance achieved08-MAR-2019State -
903572902900SOXState Compliance achieved30-APR-2009StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
903571902845SOXState Compliance achieved30-APR-2009StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
903570802809SOXState Compliance achieved30-OCT-2008StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
903569802572SOXState Compliance achieved31-JAN-2008StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
903568702472SOXState Compliance achieved30-OCT-2007StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
903567501801SOXState Compliance achieved30-JUL-2005StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
  • 1 - 7 of 7

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL 0535401YesWell Ground waterOtherInactive
WELL 0338161YesWell Ground waterPermanentInactive
WELL 0668147YesWell Ground waterPermanentActive
WELL 0138162YesWell Ground waterPermanentActive
WELL 0238160YesWell Ground waterPermanentActive
WELL 0435402YesWell Ground waterOtherInactive
DISTRIBUTION SYSTEM43715NoDistribution System/Zone - - Active
TREATMENT PLANT 0656128NoTreatment Plant - - Active
TREATMENT PLANT 0156130NoTreatment Plant - - Active
TREATMENT PLANT 0256129NoTreatment Plant - - Inactive
  • 1 - 10 of 10

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT 0656128Hypochlorination, PreDisinfection
TREATMENT PLANT 0656128FilteredIron removal
TREATMENT PLANT 0256129Hypochlorination, PreDisinfection
TREATMENT PLANT 0156130Hypochlorination, PreDisinfection
  • 1 - 4 of 4

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.