Drinking Water Compliance OS

PARKER, CO · Douglas County

PARKER WSD Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Colorado’s official records. Always confirm current status with Colorado before making decisions based on this information.

System facts

System ID (PWSID)
CO0118040
System type
Community Water System
Population served
75,949
Service connections
20,005
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

  • Monitoring and Reporting (DBP)

    Chlorine dioxide

    July 1, 2024 – July 31, 2024

    Archived
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    September 1, 2023 – September 30, 2023

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2022 – August 12, 2022

    Resolved
  • Water Quality Parameter M/R

    Lead and Copper Rule

    July 1, 2021 – December 31, 2021

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    ETHYLENE DIBROMIDE

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Endrin

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    BHC-GAMMA

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Methoxychlor

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Toxaphene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Dalapon

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Diquat

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Endothall

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Di(2-ethylhexyl) adipate

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Simazine

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Dinoseb

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Aldicarb sulfone

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Carbofuran

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Aldicarb

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Heptachlor

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    2,4,5-TP

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Pentachlorophenol

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Endrin

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    BHC-GAMMA

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Diquat

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Di(2-ethylhexyl) adipate

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Dinoseb

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Aldicarb sulfoxide

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    LASSO

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    2,4,5-TP

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    ETHYLENE DIBROMIDE

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Chlordane

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Simazine

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Aldicarb sulfoxide

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Atrazine

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Benzo(a)pyrene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    Chlordane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Check/Repeat/Confirmation

    BHC-GAMMA

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Di(2-ethylhexyl) phthalate

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Picloram

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Dinoseb

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Hexachlorocyclopentadiene

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Aldicarb sulfone

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Carbofuran

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Aldicarb

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Atrazine

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Heptachlor

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Heptachlor epoxide

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    2,4-D

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    2,4,5-TP

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    HEXACHLOROBENZENE

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Benzo(a)pyrene

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    ETHYLENE DIBROMIDE

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Endrin

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    BHC-GAMMA

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Methoxychlor

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Toxaphene

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Dalapon

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Diquat

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Endothall

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Di(2-ethylhexyl) adipate

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    OXAMYL

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Simazine

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Di(2-ethylhexyl) phthalate

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Picloram

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Dinoseb

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Hexachlorocyclopentadiene

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Aldicarb sulfoxide

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Aldicarb sulfone

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Carbofuran

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Aldicarb

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Atrazine

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    LASSO

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Heptachlor

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Heptachlor epoxide

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    2,4-D

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    HEXACHLOROBENZENE

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Benzo(a)pyrene

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Pentachlorophenol

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    ETHYLENE DIBROMIDE

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Chlordane

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    2,4,5-TP

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Methoxychlor

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Simazine

    January 1, 2005 – December 31, 2007

    Archived
  • Monitoring, Check/Repeat/Confirmation

    Heptachlor

    January 1, 2005 – December 31, 2007

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    March 1, 1996 – March 31, 1996

    Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

Contact

ROCHE, JAMES

303-841-2058

PARKER, CO 80134