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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDMO5021168
PWS NameMC DONALD COUNTY PWSD 3
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served600
County ServedMcDonald

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
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule3342Returned to Compliance01-JUL-2013 - No
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3340Returned to Compliance01-JAN-201231-DEC-2012Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3341Returned to Compliance01-JAN-201231-DEC-2012Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3338Returned to Compliance01-OCT-201130-SEP-2012Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3339Returned to Compliance01-OCT-201130-SEP-2012Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3335Returned to Compliance01-JUL-201130-JUN-2012Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3334Returned to Compliance01-JUL-201130-JUN-2012Yes
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)3325Returned to Compliance01-DEC-201031-DEC-2010No
MRMonitoring, Source Water (GWR)Ground Water RuleE. COLI3323Returned to Compliance01-NOV-2010 - No
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3332Returned to Compliance01-OCT-201030-SEP-2011Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3333Returned to Compliance01-OCT-201030-SEP-2011Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3331Returned to Compliance01-JUL-201030-JUN-2011Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3330Returned to Compliance01-JUL-201030-JUN-2011Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3329Returned to Compliance01-APR-201031-MAR-2011Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3328Returned to Compliance01-APR-201031-MAR-2011Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3326Returned to Compliance01-JAN-201031-DEC-2010Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3327Returned to Compliance01-JAN-201031-DEC-2010Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3322Returned to Compliance01-OCT-200930-SEP-2010Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3321Returned to Compliance01-OCT-200930-SEP-2010Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3319Returned to Compliance01-JUL-200930-JUN-2010Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3318Returned to Compliance01-JUL-200930-JUN-2010Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3316Returned to Compliance01-APR-200931-MAR-2010Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3317Returned to Compliance01-APR-200931-MAR-2010Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3313Returned to Compliance01-JAN-200931-DEC-2009Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3314Returned to Compliance01-JAN-200931-DEC-2009Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3310Returned to Compliance01-OCT-200830-SEP-2009Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3311Returned to Compliance01-OCT-200830-SEP-2009Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3309Returned to Compliance01-JUL-200830-JUN-2009Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3209Returned to Compliance01-JUL-200830-JUN-2009Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U3009Returned to Compliance01-APR-200831-MAR-2009Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)3109Returned to Compliance01-APR-200831-MAR-2009Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U2809Returned to Compliance01-JAN-200831-DEC-2008Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)2909Returned to Compliance01-JAN-200831-DEC-2008Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U2609Returned to Compliance01-OCT-200730-SEP-2008Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)2709Returned to Compliance01-OCT-200730-SEP-2008Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)2509Returned to Compliance01-JUL-200730-JUN-2008Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U2409Returned to Compliance01-JUL-200730-JUN-2008Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)2308Returned to Compliance01-APR-200731-MAR-2008Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U2208Returned to Compliance01-APR-200731-MAR-2008Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U2008Returned to Compliance01-JAN-200731-DEC-2007Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)2108Returned to Compliance01-JAN-200731-DEC-2007Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U1708Returned to Compliance01-OCT-200630-SEP-2007Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)1808Returned to Compliance01-OCT-200630-SEP-2007Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)1607Returned to Compliance01-JUL-200630-JUN-2007Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U1507Returned to Compliance01-JUL-200630-JUN-2007Yes
OtherConsumer Confidence Report Inadequate ReportingConsumer Confidence RuleConsumer Confidence Rule606Returned to Compliance01-JUL-2006 - No
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U1007Returned to Compliance01-APR-200631-MAR-2007Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)1107Returned to Compliance01-APR-200631-MAR-2007Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)1307Returned to Compliance01-JAN-200631-DEC-2006Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U1207Returned to Compliance01-JAN-200631-DEC-2006Yes
  • 1 - 50 of 57

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
17803342SOXState Compliance achieved03-SEP-2014StateRTC per PDWB policy SEH 9/3/14;
1778306SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
1778406SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
1778506SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
1778606SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
1778707SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
1778807SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17781007SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17781107SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17781207SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17781307SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17781507SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17781607SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17781708SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17781808SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17782008SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17782108SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17782208SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17782308SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17782409SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17782509SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17782609SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17782709SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17782809SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17782909SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783009SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783109SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783209SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783309SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783310SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783311SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783313SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783314SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783316SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783317SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783318SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783319SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783321SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783322SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783323SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783325SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783326SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783327SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783328SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783329SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783330SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783331SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783332SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783333SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
17783334SOXState Compliance achieved14-AUG-2013StatePWS discontinued using the well that was high in radionuclides, Samples taken in April 2013 were below the MCL for Gross Alpha and combined 228, 228. Sox'd violations SEH 8/14/13;
  • 1 - 50 of 57

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL # 181585YesWell Ground waterOtherActive
WELL # 2100887YesWell Ground waterPermanentActive
DISTRIBUTION SYSTEM89535NoDistribution System/Zone - - Active
WELL #2 TWO 25 HP CENTRIFUGAL PUMP107042NoPump Facility - - Active
CHEMICAL SAMPLES94388NoSampling Station - - Active
CONTACT- FAT PIPE WELL #2102991NoStorage - - Active
50K STORAGE AT WELL 2107041NoStorage - - Active
87800 GALLON STANDPIPE96155NoStorage - - Active
DUPLICATE NEVER EXISTED97092NoStorage - - Inactive
WELL # 2 TREATMENT101044NoTreatment Plant - - Active
WELL # 1 TREATMENT-SALT RD96154NoTreatment Plant - - Active
BLENDING AT STANDPIPE FOR RADS102990NoTreatment Plant - - Inactive
  • 1 - 12 of 12

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
WELL # 2 TREATMENT101044Gaseous Chlorination, PostDisinfection
WELL # 2 TREATMENT101044InnovativeDisinfection
BLENDING AT STANDPIPE FOR RADS102990Activated AluminaRadionuclides removal
WELL # 1 TREATMENT-SALT RD96154Gaseous Chlorination, PostDisinfection
  • 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.