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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCO0159040
PWS NameDILLON VALLEY DISTRICT
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water
Primacy TypeState
Is Wholesaler?No
Population Served3063
County ServedSummit

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 of Treatment (SWTR-Filter)Surface Water Treatment RuleSurface Water Treatment Rule2005113Returned to Compliance01-NOV-202530-NOV-2025No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine2005112Returned to Compliance01-OCT-202531-DEC-2025No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2005110Returned to Compliance01-JAN-202531-MAR-2025No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)2004494Returned to Compliance01-FEB-199428-FEB-1994No
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Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
20045062005112SIEState Public Notification requested25-NOV-2025State -
20045062005113SIEState Public Notification requested25-NOV-2025State -
20045022005110SIEState Public Notification requested14-APR-2025State -
20044952004494SOXState Compliance achieved10-APR-2008State>6 mo wo violations. SOXd. aj
  • 1 - 4 of 4

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
PURCHASED FROM CO015909525750YesConsecutive ConnectionGround waterEmergencyActive
STRAIGHT CREEK546YesIntakeSurface waterPermanentActive
LASKY GULCH545YesIntakeSurface waterPermanentActive
PURCHASED FROM CO015903525749YesConsecutive ConnectionSurface waterEmergencyActive
DISTRIBUTION SYSTEM7232NoDistribution System/Zone - - Active
PUMPHOUSE19132NoPump Facility - - Inactive
COMBINED RAW SOURCE14057NoSampling Station - - Active
TANK NO 113319NoStorage - - Active
TANK NO 213320NoStorage - - Active
TANK NO 315429NoStorage - - Active
DILLON VALLEY DISTRICT SWTP014481NoTreatment Plant - - Active
  • 1 - 11 of 11

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
DILLON VALLEY DISTRICT SWTP014481InnovativeParticulate removal
DILLON VALLEY DISTRICT SWTP014481InnovativeCorrosion control
DILLON VALLEY DISTRICT SWTP014481Gaseous Chlorination, PostDisinfection
DILLON VALLEY DISTRICT SWTP014481InnovativeDisinfection
  • 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.