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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA5700571
PWS NameMADISON SERVICE DIST
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served876
County ServedYolo

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, RegularRadionuclides and Revised Rad RuleCombined Uranium9800175Known01-APR-202630-JUN-2026No
MRMonitoring, RegularArsenic RuleArsenic9800102Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularInorganic ChemicalsBarium9800103Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsHeptachlor9800161Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic Chemicals2,3,7,8-TCDD9800160Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsLASSO9800159Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsAtrazine9800158Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsCarbofuran9800157Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsHexachlorocyclopentadiene9800156Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsDinoseb9800155Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsPicloram9800154Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsDi(2-ethylhexyl) phthalate9800153Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsSimazine9800152Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsOXAMYL9800151Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsDi(2-ethylhexyl) adipate9800150Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsGlyphosate9800149Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsEndothall9800148Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsDiquat9800147Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsDalapon9800146Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsToxaphene9800145Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsMethoxychlor9800144Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsBHC-GAMMA9800143Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsEndrin9800142Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularInorganic ChemicalsThallium, Total9800112Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularInorganic ChemicalsBeryllium, Total9800111Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularInorganic ChemicalsAntimony, Total9800110Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsETHYLENE DIBROMIDE9800170Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic Chemicalscis-1,2-Dichloroethylene9800118Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic Chemicals1,2,4-Trichlorobenzene9800117Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsPentachlorophenol9800167Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsBenzo(a)pyrene9800166Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic ChemicalsHEXACHLOROBENZENE9800165Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularInorganic ChemicalsSelenium9800113Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularNitrate RuleNitrite9800109Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularInorganic ChemicalsNickel9800108Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularInorganic ChemicalsMercury9800107Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularInorganic ChemicalsFluoride9800106Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic Chemicals2,4,5-TP9800164Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic Chemicals2,4-D9800163Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularSynthetic Organic Chemicals1,2-DIBROMO-3-CHLOROPROPANE9800169Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic ChemicalsStyrene9800141Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic ChemicalsEthylbenzene9800140Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic ChemicalsToluene9800139Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic ChemicalsBenzene9800138Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic ChemicalsCHLOROBENZENE9800137Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic ChemicalsTetrachloroethylene9800135Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic Chemicals1,1,2-Trichloroethane9800134Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic ChemicalsTrichloroethylene9800133Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic Chemicals1,2-Dichloropropane9800132Returned to Compliance01-JAN-202531-DEC-2025No
MRMonitoring, RegularVolatile Organic ChemicalsCarbon tetrachloride9800131Returned to Compliance01-JAN-202531-DEC-2025No
  • 1 - 50 of 153

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
98000749800025SOXState Compliance achieved25-JUN-2026State -
98000749800026SOXState Compliance achieved25-JUN-2026State -
98000749800029SOXState Compliance achieved25-JUN-2026State -
98000749800030SOXState Compliance achieved25-JUN-2026State -
98000749800031SOXState Compliance achieved25-JUN-2026State -
98000749800032SOXState Compliance achieved25-JUN-2026State -
98000749800033SOXState Compliance achieved25-JUN-2026State -
98000749800034SOXState Compliance achieved25-JUN-2026State -
98000749800036SOXState Compliance achieved25-JUN-2026State -
98000749800037SOXState Compliance achieved25-JUN-2026State -
98000749800038SOXState Compliance achieved25-JUN-2026State -
98000749800039SOXState Compliance achieved25-JUN-2026State -
98000749800040SOXState Compliance achieved25-JUN-2026State -
98000749800041SOXState Compliance achieved25-JUN-2026State -
98000749800042SOXState Compliance achieved25-JUN-2026State -
98000749800043SOXState Compliance achieved25-JUN-2026State -
98000749800045SOXState Compliance achieved25-JUN-2026State -
98000749800046SOXState Compliance achieved25-JUN-2026State -
98000749800047SOXState Compliance achieved25-JUN-2026State -
98000749800048SOXState Compliance achieved25-JUN-2026State -
98000749800049SOXState Compliance achieved25-JUN-2026State -
98000749800050SOXState Compliance achieved25-JUN-2026State -
98000749800051SOXState Compliance achieved25-JUN-2026State -
98000749800052SOXState Compliance achieved25-JUN-2026State -
98000749800053SOXState Compliance achieved25-JUN-2026State -
98000749800054SOXState Compliance achieved25-JUN-2026State -
98000749800055SOXState Compliance achieved25-JUN-2026State -
98000749800056SOXState Compliance achieved25-JUN-2026State -
98000749800057SOXState Compliance achieved25-JUN-2026State -
98000749800058SOXState Compliance achieved25-JUN-2026State -
98000749800059SOXState Compliance achieved25-JUN-2026State -
98000749800060SOXState Compliance achieved25-JUN-2026State -
98000749800061SOXState Compliance achieved25-JUN-2026State -
98000749800062SOXState Compliance achieved25-JUN-2026State -
98000749800063SOXState Compliance achieved25-JUN-2026State -
98000749800064SOXState Compliance achieved25-JUN-2026State -
98000749800065SOXState Compliance achieved25-JUN-2026State -
98000749800066SOXState Compliance achieved25-JUN-2026State -
98000749800067SOXState Compliance achieved25-JUN-2026State -
98000749800068SOXState Compliance achieved25-JUN-2026State -
98000749800069SOXState Compliance achieved25-JUN-2026State -
98000749800070SOXState Compliance achieved25-JUN-2026State -
98000749800071SOXState Compliance achieved25-JUN-2026State -
98000749800072SOXState Compliance achieved25-JUN-2026State -
98000749800073SOXState Compliance achieved25-JUN-2026State -
98000749800074SOXState Compliance achieved25-JUN-2026State -
98000749800075SOXState Compliance achieved25-JUN-2026State -
98000749800076SOXState Compliance achieved25-JUN-2026State -
98000749800077SOXState Compliance achieved25-JUN-2026State -
98000749800078SOXState Compliance achieved25-JUN-2026State -
  • 1 - 50 of 144

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL 01 (STANDBY)40323YesWell Ground waterEmergencyActive
WELL 0360112YesWell Ground waterPermanentActive
WELL 0260111YesWell Ground waterPermanentActive
WELL 02 - CAMP60110YesWell Ground waterOtherInactive
DISTRIBUTION SYSTEM53015NoDistribution System/Zone - - Active
STORAGE TANK59855NoStorage - - Active
CHLORINATOR59967NoTreatment Plant - - Active
  • 1 - 7 of 7

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
CHLORINATOR59967Hypochlorination, PostDisinfection
  • 1 - 1 of 1
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.