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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDIL0970250
PWS NameGRAYSLAKE
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water purchased
Primacy TypeState
Is Wholesaler?No
Population Served21248
County ServedLake

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
MRWater Quality Parameter M/RLead and Copper RuleLead and Copper Rule7138007Returned to Compliance01-JUL-200631-DEC-2006No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)5194300Known01-SEP-200030-SEP-2000Yes
MRWater Quality Parameter M/RLead and Copper RuleLead and Copper Rule5252400Returned to Compliance01-JUL-200031-DEC-2000No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)4557399Known01-AUG-199931-AUG-1999Yes
MRWater Quality Parameter M/RLead and Copper RuleLead and Copper Rule3975997Returned to Compliance01-JUL-199731-DEC-1997No
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)3264596Known01-DEC-199531-DEC-1995No
TTPublic EducationLead and Copper RuleLead and Copper Rule2782394Returned to Compliance01-JAN-1994 - Yes
TTOCCT/SOWT Study/RecommendationLead and Copper RuleLead and Copper Rule1960193Returned to Compliance21-DEC-1992 - Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)1658493Known01-OCT-199231-OCT-1992Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)1399392Known01-OCT-199131-OCT-1991Yes
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U7137180Known30-JUN-197729-JUN-1981No
  • 1 - 11 of 11

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
85408077138007SIAState Violation/Reminder Notice12-JAN-2007State -
85400015252400SOXState Compliance achieved30-JUN-2001State -
3364015194300SIEState Public Notification requested15-NOV-2000State -
85398004557399SIEState Public Notification requested15-OCT-1999State -
79757993975997SOXState Compliance achieved19-APR-1999State -
53202963264596SIEState Public Notification requested03-MAR-1996State -
1E962782394EFJFederal issued Formal Notice of Violation31-OCT-1995ODSWebRS
15510941960193SOXState Compliance achieved03-JAN-1994State -
15508931658493SIEState Public Notification requested12-DEC-1992State -
10671921399392SIEState Public Notification requested14-DEC-1991State -
  • 1 - 10 of 10

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
CC 04-MASTER METER26265YesConsecutive ConnectionSurface waterPermanentActive
WELL 3 (20241) ABANDONED19955YesWell Ground waterOtherInactive
WELL 1 (20240) ABANDONED19954YesWell Ground waterOtherInactive
WELL 5 (02143) EMERGENCY41626YesWell Ground waterEmergencyActive
WELL 4 (20242) EMERGENCY19956YesWell Ground waterEmergencyActive
GRAYS LAKE24147NoDistribution System/Zone - - Active
SCHOOL LEAD SAMPLING45324NoDistribution System/Zone - - Active
CHILDCARE FACILITY LEAD SAMPLING45327NoDistribution System/Zone - - Active
GENERIC FINISHED SAMPLING STATION27806NoSampling Station - - Active
GENERIC RAW SAMPLING STATION30228NoSampling Station - - Active
WATER QUALITY SAMPLING47089NoSampling Station - - Active
DISTRIBUTION ELEVATED STORAGE11349NoStorage - - Active
DISTRIBUTION GROUND STORAGE12260NoStorage - - Active
TAP 04 GROUND STORAGE12870NoStorage - - Active
TP 04-CLCJAWA WATER (MAY ADD NAOCL)32103NoTreatment Plant - - Active
TP05-WELL #5 EMERGENCY43962NoTreatment Plant - - Active
TP 01-WELL 1 (ABANDONED)16003NoTreatment Plant - - Inactive
TP 02-WELL 3 (ABANDONED)16004NoTreatment Plant - - Inactive
TP 03-WELL 4 (INACTIVE)16005NoTreatment Plant - - Inactive
  • 1 - 19 of 19

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TP 03-WELL 4 (INACTIVE)16005Gaseous Chlorination, PreDisinfection
TP 04-CLCJAWA WATER (MAY ADD NAOCL)32103Hypochlorination, PostDisinfection
TP05-WELL #5 EMERGENCY43962Hypochlorination, PostDisinfection
  • 1 - 3 of 3

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.