Community Water System · PWSID CO0118045

Perry Park Wsd

Serves 3,890 peopleGroundwater Under InfluenceOwner: Local GovernmentLarkspur, Colorado
Nothing open right now.

On record since 2017: 47 violations. 47 missed or late tests. Most recent began 2023-11-01.

None of them is a measurement of contaminated water.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit
0Treatment lapse
47Missed or late test
0Notice or report

More violations on record than 91% of active water systems in Colorado. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005201020152017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312017 · Missed or late test: 312019 · Missed or late test: 32020 · Missed or late test: 320202021 · Missed or late test: 42021 · Missed or late test: 42022 · Missed or late test: 42022 · Missed or late test: 42023 · Missed or late test: 22025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
100% missed or late test · 47

Across Colorado, 74% of violations are missed or late tests and 6% are water over a limit.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 7 results on file · action level 15 ppb

4 ppb
2 ppb
2 ppb
2 ppb
1 ppb
1 ppb
1 ppb

Every violation on record

  1. 2023-11-01E. ColiMonitoring, Source Water (LT2)Back in compliance
  2. 2023-02-16Surface water treatment (LT2)Monitoring, Source Water (LT2)Back in compliance
  3. 2022-12-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  4. 2022-01-01Combined Radium (-226 and -228)Monitoring, RegularPeriod ended · no return to compliance on file
  5. 2022-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  6. 2022-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  7. 2021-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  8. 2021-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  9. 2021-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  10. 2021-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  11. 2020-04-01Combined Radium (-226 and -228)Monitoring, RegularBack in compliance
  12. 2020-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  13. 2020-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  14. 2019-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  15. 2019-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  16. 2019-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  17. 2017-01-01ChlordaneMonitoring, RegularBack in compliance
  18. 2017-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  19. 2017-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  20. 2017-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  21. 2017-01-01PentachlorophenolMonitoring, RegularBack in compliance
  22. 2017-01-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  23. 2017-01-01HexachlorobenzeneMonitoring, RegularBack in compliance
  24. 2017-01-012, 4, 5-TpMonitoring, RegularBack in compliance
  25. 2017-01-012, 4-DMonitoring, RegularBack in compliance
Show the other 22 entries
  1. 2017-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
  2. 2017-01-01HeptachlorMonitoring, RegularBack in compliance
  3. 2017-01-01LassoMonitoring, RegularBack in compliance
  4. 2017-01-01AtrazineMonitoring, RegularBack in compliance
  5. 2017-01-01AldicarbMonitoring, RegularBack in compliance
  6. 2017-01-01CarbofuranMonitoring, RegularBack in compliance
  7. 2017-01-01Aldicarb sulfoneMonitoring, RegularBack in compliance
  8. 2017-01-01Aldicarb sulfoxideMonitoring, RegularBack in compliance
  9. 2017-01-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  10. 2017-01-01DinosebMonitoring, RegularBack in compliance
  11. 2017-01-01PicloramMonitoring, RegularBack in compliance
  12. 2017-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  13. 2017-01-01SimazineMonitoring, RegularBack in compliance
  14. 2017-01-01OxamylMonitoring, RegularBack in compliance
  15. 2017-01-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  16. 2017-01-01EndothallMonitoring, RegularBack in compliance
  17. 2017-01-01DiquatMonitoring, RegularBack in compliance
  18. 2017-01-01DalaponMonitoring, RegularBack in compliance
  19. 2017-01-01ToxapheneMonitoring, RegularBack in compliance
  20. 2017-01-01MethoxychlorMonitoring, RegularBack in compliance
  21. 2017-01-01Bhc-GammaMonitoring, RegularBack in compliance
  22. 2017-01-01EndrinMonitoring, RegularBack in compliance

System details

Population served3,890
Service connections1,556
Water sourceGroundwater Under Influence
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityLarkspur
EPA ZIP on file80118

Areas served

  • Douglas County

Reading this record

Perry Park Wsd is a community water system that draws from groundwater under influence and serves about 3,890 people in Larkspur, Colorado. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.