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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDIA2424027
PWS NameDENISON WATER SUPPLY
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served9381
County ServedCrawford

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 RuleNitrate74502Returned to Compliance01-OCT-200030-SEP-2001No
MRInitial Tap Sampling for Pb and CuLead and Copper RuleLead and Copper Rule1V93Returned to Compliance01-JUL-199201-MAR-2002No
MRMonitoring, RegularNitrate RuleNitrate60591Returned to Compliance01-OCT-199031-DEC-1990No
  • 1 - 3 of 3

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
57750274502SIFState Public Notification received31-DEC-2001State -
#0000011V93SOXState Compliance achieved30-JUN-1992ODSWebInvalid Violation
57669160591SOXState Compliance achieved05-JUN-1991State -
  • 1 - 3 of 3

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL # 1 (1989)10559YesWell Ground waterEmergencyInactive
WELL # 5 (1971)9916YesWell Ground waterPermanentActive
WELL # 16 (2017)34462YesWell Ground waterPermanentActive
WELL # 15 (2017)34461YesWell Ground waterPermanentActive
WELL # 14 (201734460YesWell Ground waterPermanentActive
WELL # 13 (2001)27106YesWell Ground waterPermanentActive
WELL #12 (2001)27105YesWell Ground waterPermanentActive
WELL # 11 (2001)27104YesWell Ground waterPermanentActive
WELL # 10 (2001)27103YesWell Ground waterPermanentActive
WELL # 9 (2001)27102YesWell Ground waterPermanentActive
WELL # 2A (1997)19629YesWell Ground waterPermanentActive
WELL # 3 (1953)12903YesWell Ground waterPermanentActive
WELL # 7 (1976)12815YesWell Ground waterPermanentActive
WELL # 2 (1933)10179YesWell Ground waterPermanentActive
PLUGGED WELL # 6 (1972)13551YesWell Ground waterOtherInactive
WELL # 8 (1983)12413YesWell Ground waterOtherInactive
PLUGGED WELL # 4 (1962)11272YesWell Ground waterOtherInactive
DISTRIBUTION SYSTEM1036NoDistribution System/Zone - - Active
COMBINED DISTRIBUTION SYSTEM31534NoDistribution System/Zone - - Active
CC TO W CENTRAL RWA - DENISON, IA242470116043NoOther - - Active
GENERAL PWS FACILITY22642NoOther - - Active
CC TO WEST CENTRAL RWA, IA140090231344NoOther - - Active
HOSPITAL BOOSTER STATION35636NoPump Facility - - Active
DONNA REED BOOSTER STATION35637NoPump Facility - - Active
O AVENUE BOOSTER STATION35638NoPump Facility - - Active
200,000 EST BOOSTER STATION35639NoPump Facility - - Active
HIGHWAY 59 BOOSTER STATION35640NoPump Facility - - Active
WELLS 2,3, 5, 7, 9-16 & 2A @ WATER PLANT19628NoSampling Station - - Active
WELLS 1-5 7,8 @ WATER PLANT6795NoSampling Station - - Inactive
ELEVATED STORAGE- 1MG14992NoStorage - - Active
GROUND STORAGE- 1.5MG31429NoStorage - - Active
GROUND STORAGE-0.5MG31543NoStorage - - Active
ELEVATED STORAGE-0.5MG31544NoStorage - - Active
ELEVATED STORAGE - 0.5MG37179NoStorage - - Active
ELEVATED STORAGE-0.2MG31545NoStorage - - Inactive
TREATMENT PLANT #127682NoTreatment Plant - - Active
  • 1 - 36 of 36

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT #127682Filtration, Rapid SandIron removal
TREATMENT PLANT #1276824-Log Treatment of VirusesDisinfection
TREATMENT PLANT #127682InnovativeDisinfection
TREATMENT PLANT #127682Inhibitor, PolyphosphateCorrosion control
TREATMENT PLANT #127682InnovativeDisinfection
TREATMENT PLANT #127682InnovativeOther
TREATMENT PLANT #127682FluoridationOther
TREATMENT PLANT #127682InnovativeSoftening (hardness removal)
TREATMENT PLANT #127682CoagulationSoftening (hardness removal)
TREATMENT PLANT #127682InnovativeIron removal
TREATMENT PLANT #127682InnovativeIron removal
TREATMENT PLANT #127682InnovativeIron removal
TREATMENT PLANT #127682InnovativeCorrosion control
TREATMENT PLANT #127682InnovativeCorrosion control
TREATMENT PLANT #127682InnovativeSoftening (hardness removal)
TREATMENT PLANT #127682InnovativeSoftening (hardness removal)
TREATMENT PLANT #127682InnovativeSoftening (hardness removal)
TREATMENT PLANT #127682InnovativeIron removal
TREATMENT PLANT #127682SequestrationIron removal
  • 1 - 19 of 19
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.