Community Water System · PWSID MN1340004

Lake Lillian

Serves 236 peopleGroundwaterOwner: Local GovernmentLake Lillian, Minnesota
Nothing open that measures the water, but 1 open testing or paperwork violation.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 2018: 27 violations. 21 over the limit · 2 missed or late tests · 4 notices or reports. Most recent began 2025-10-01.

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

21Over the limit
0Treatment lapse
2Missed or late test
4Notice or report1 open

More violations on record than 99% of active water systems in Minnesota. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005201020152018 · Over the limit: 12019 · Over the limit: 32019 · Over the limit: 32019 · Over the limit: 32020 · Over the limit: 42020 · Over the limit: 42020 · Over the limit: 42020 · Over the limit: 420202021 · Over the limit: 12021 · Missed or late test: 12022 · Over the limit: 12023 · Over the limit: 32023 · Over the limit: 32023 · Over the limit: 32024 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42024 · Notice or report: 22024 · Notice or report: 22025 · Over the limit: 42025 · Over the limit: 42025 · Over the limit: 42025 · Over the limit: 42025 · Missed or late test: 12025 · Notice or report: 22025 · Notice or report: 22025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
78% over the limit · 217% missed or late test · 215% notice or report · 4

Across Minnesota, 77% of violations are missed or late tests and 9% 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 2 results on file · action level 15 ppb

2 ppb
2 ppb

Open now (1)

  1. 2025-09-09Public NoticePN Violation for NPDWR ViolationOpen

Every violation on record

  1. 2025-10-01ArsenicMCL, Averagemeasured 0.0163 MG/LPeriod ended · no return to compliance on file
  2. 2025-09-09Public NoticePN Violation for NPDWR ViolationOpen
  3. 2025-07-01ArsenicMCL, Averagemeasured 0.0147 MG/LPeriod ended · no return to compliance on file
  4. 2025-04-01ArsenicMCL, Averagemeasured 0.0145 MG/LPeriod ended · no return to compliance on file
  5. 2025-01-22Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2025-01-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  7. 2025-01-01ArsenicMCL, Averagemeasured 0.0175 MG/LPeriod ended · no return to compliance on file
  8. 2024-10-01ArsenicMCL, Averagemeasured 0.0173 MG/LPeriod ended · no return to compliance on file
  9. 2024-09-22Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2024-07-01ArsenicMCL, Averagemeasured 0.0175 MG/LPeriod ended · no return to compliance on file
  11. 2024-06-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2024-04-01ArsenicMCL, Averagemeasured 0.0177 MG/LPeriod ended · no return to compliance on file
  13. 2024-01-01ArsenicMCL, Averagemeasured 0.0143 MG/LPeriod ended · no return to compliance on file
  14. 2023-10-01ArsenicMCL, Averagemeasured 0.0120 MG/LPeriod ended · no return to compliance on file
  15. 2023-07-01ArsenicMCL, Averagemeasured 0.0148 MG/LPeriod ended · no return to compliance on file
  16. 2023-04-01ArsenicMCL, Averagemeasured 0.0205 MG/LPeriod ended · no return to compliance on file
  17. 2022-10-01ArsenicMCL, Averagemeasured 0.0262 MG/LPeriod ended · no return to compliance on file
  18. 2021-01-01ArsenicMCL, Averagemeasured 0.0123 MG/LPeriod ended · no return to compliance on file
  19. 2021-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  20. 2020-10-01ArsenicMCL, Averagemeasured 0.0130 MG/LPeriod ended · no return to compliance on file
  21. 2020-07-01ArsenicMCL, Averagemeasured 0.0133 MG/LPeriod ended · no return to compliance on file
  22. 2020-04-01ArsenicMCL, Averagemeasured 0.0130 MG/LPeriod ended · no return to compliance on file
  23. 2020-01-01ArsenicMCL, Averagemeasured 0.0150 MG/LPeriod ended · no return to compliance on file
  24. 2019-10-01ArsenicMCL, Averagemeasured 0.0140 MG/LPeriod ended · no return to compliance on file
  25. 2019-07-01ArsenicMCL, Averagemeasured 0.0143 MG/LPeriod ended · no return to compliance on file
Show the other 2 entries
  1. 2019-04-01ArsenicMCL, Averagemeasured 0.0123 MG/LPeriod ended · no return to compliance on file
  2. 2018-10-01ArsenicMCL, Averagemeasured 0.0105 MG/LPeriod ended · no return to compliance on file

System details

Population served236
Service connections136
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityLake Lillian
EPA ZIP on file56253

Areas served

  • Kandiyohi County

Reading this record

Lake Lillian is a community water system that draws from groundwater and serves about 236 people in Lake Lillian, Minnesota. 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.