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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDNY5103271
PWS NameGREENLAWN WATER DISTRICT
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served42000
County ServedSuffolk

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
MRMonitoring, RegularNitrate RuleNitrate-Nitrite287Known01-JAN-202631-MAR-2026No
MRMonitoring, RegularNitrate RuleNitrate-Nitrite284Known01-JAN-202531-MAR-2025No
MRMonitoring, RegularArsenic RuleArsenic247Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsBarium248Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsCadmium249Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsCYANIDE251Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsFluoride252Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsMercury253Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsNickel254Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularNitrate RuleNitrate-Nitrite246Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsSelenium258Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsAntimony, Total255Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsBeryllium, Total256Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsChromium250Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsThallium, Total257Known01-JAN-202431-DEC-2024No
MRMonitoring, RegularNitrate RuleNitrate236Returned to Compliance01-APR-202330-JUN-2023No
MRMonitoring, RegularNitrate RuleNitrite237Returned to Compliance01-APR-202330-JUN-2023No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorite243Returned to Compliance01-APR-202330-APR-2023No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleBromate244Returned to Compliance01-APR-202330-JUN-2023No
OtherConsumer Confidence Report Inadequate ReportingConsumer Confidence RuleConsumer Confidence Rule204Returned to Compliance31-MAY-2012 - No
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)203Returned to Compliance01-AUG-201131-AUG-2011No
MRMonitoring, Source Water (GWR)Ground Water RuleE. COLI202Returned to Compliance01-JUN-201030-JUN-2010No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)201Returned to Compliance01-SEP-200030-SEP-2000Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)199Known01-SEP-199930-SEP-1999Yes
  • 1 - 24 of 24

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
66284SFOState Administrative/Compliance Order with penalty issued01-APR-2025State -
59246SIEState Public Notification requested16-JAN-2025State -
61258SIEState Public Notification requested16-JAN-2025State -
61257SIEState Public Notification requested16-JAN-2025State -
61256SIEState Public Notification requested16-JAN-2025State -
61255SIEState Public Notification requested16-JAN-2025State -
61254SIEState Public Notification requested16-JAN-2025State -
61253SIEState Public Notification requested16-JAN-2025State -
61252SIEState Public Notification requested16-JAN-2025State -
61247SIEState Public Notification requested16-JAN-2025State -
61248SIEState Public Notification requested16-JAN-2025State -
61249SIEState Public Notification requested16-JAN-2025State -
61250SIEState Public Notification requested16-JAN-2025State -
61251SIEState Public Notification requested16-JAN-2025State -
55243SOXState Compliance achieved12-JUL-2023State -
40237SOXState Compliance achieved12-JUL-2023State -
37236SOXState Compliance achieved12-JUL-2023State -
52244SOXState Compliance achieved12-JUL-2023State -
8204SOXState Compliance achieved26-JUL-2012State -
7203SOXState Compliance achieved02-SEP-2011State -
4202SOXState Compliance achieved30-JUN-2010State -
12201SOXState Compliance achieved30-JUN-2001State -
  • 1 - 22 of 22

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL #723708YesWell Ground waterEmergencyInactive
WELL #223715YesWell Ground waterPermanentInactive
WELL #323713YesWell Ground waterPermanentInactive
WELL #1623702YesWell Ground waterPermanentInactive
WELL #1884536YesWell Ground waterPermanentActive
WELL # 3R82569YesWell Ground waterPermanentActive
WELL #1772112YesWell Ground waterPermanentActive
WELL #823716YesWell Ground waterPermanentActive
WELL #1423714YesWell Ground waterPermanentActive
WELL #423711YesWell Ground waterPermanentActive
WELL #523710YesWell Ground waterPermanentActive
WELL #623709YesWell Ground waterPermanentActive
WELL #923707YesWell Ground waterPermanentActive
WELL #1023706YesWell Ground waterPermanentActive
WELL #1523705YesWell Ground waterPermanentActive
WELL #1123704YesWell Ground waterPermanentActive
WELL #1323703YesWell Ground waterPermanentActive
WELL #1223701YesWell Ground waterPermanentActive
WELL #1 S-OOO31 12" DIA 204'40755YesWell Ground waterEmergencyInactive
WELL #7(S-19057),12" DIA,676'40751YesWell Ground waterEmergencyInactive
WELL #123712YesWell Ground waterEmergencyInactive
GREENLAWN WD62210NoDistribution System/Zone - - Active
TREATMENT PLANT FOR WELL #451687NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #551690NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #651692NoTreatment Plant - - Active
WELL 8 TREATMENT PLANT51694NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #951696NoTreatment Plant - - Active
TREATMENT PLANT FOR WELLS #10 &1551697NoTreatment Plant - - Active
WELL 11 TREATMENT PLANT51754NoTreatment Plant - - Active
WELL 12 TREATMENT PLANT51756NoTreatment Plant - - Active
WELL 13 TREATMENT PLANT51758NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #1451759NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #882675NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #1182676NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #1282677NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #1382678NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #1790332NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #3R90333NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #1890334NoTreatment Plant - - Active
TREATMENT PLANT FOR WELL #1651762NoTreatment Plant - - Inactive
  • 1 - 40 of 40

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT FOR WELL #451687pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #451687Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELL #551690pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #551690Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELL #651692pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #651692Hypochlorination, PostDisinfection
WELL 8 TREATMENT PLANT51694pH Adjustment, PostCorrosion control
WELL 8 TREATMENT PLANT51694Hypochlorination, PostDisinfection
WELL 8 TREATMENT PLANT51694Activated Carbon, GranularOrganics removal
TREATMENT PLANT FOR WELL #951696pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #951696Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELLS #10 &1551697pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELLS #10 &1551697Hypochlorination, PostDisinfection
WELL 11 TREATMENT PLANT51754pH Adjustment, PostCorrosion control
WELL 12 TREATMENT PLANT51756pH Adjustment, PostCorrosion control
WELL 12 TREATMENT PLANT51756Aeration, Packed TowerOrganics removal
WELL 13 TREATMENT PLANT51758pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #1451759pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #1451759Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELL #1651762pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #882675Activated Carbon, GranularOrganics removal
TREATMENT PLANT FOR WELL #882675Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELL #882675pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #1182676Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELL #1182676Activated Carbon, GranularOrganics removal
TREATMENT PLANT FOR WELL #1182676pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #1182676FilteredOther
TREATMENT PLANT FOR WELL #1282677Aeration, Packed TowerOrganics removal
TREATMENT PLANT FOR WELL #1282677Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELL #1282677FilteredOther
TREATMENT PLANT FOR WELL #1282677pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #1282677Activated Carbon, GranularOrganics removal
TREATMENT PLANT FOR WELL #1382678Activated Carbon, GranularOrganics removal
TREATMENT PLANT FOR WELL #1382678pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #1382678Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELL #1790332Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELL #1790332pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #3R90333Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELL #3R90333pH Adjustment, PostCorrosion control
TREATMENT PLANT FOR WELL #3R90333Activated Carbon, GranularOrganics removal
TREATMENT PLANT FOR WELL #1890334Hypochlorination, PostDisinfection
TREATMENT PLANT FOR WELL #1890334pH Adjustment, PostCorrosion control
  • 1 - 42 of 42
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.