Is Lake Elmo required to publish a Consumer Confidence Report?

Yes. Lake Elmo is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is Lake Elmo’s next Consumer Confidence Report due?

Lake Elmo’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Lake Elmo, MN · Washington County

Lake Elmo Water System

Consumer Confidence Report status

Lake Elmo must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for Lake Elmo.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Minnesota’s official records. Always confirm current status with Minnesota before making decisions based on this information.

System facts

System ID (PWSID): MN1820009
System type: Community Water System
Population served: 10,978
Service connections: 3,540
Ownership: local government
Water source: groundwater (wells)

Lake Elmo is one of 93 community water systems in Minnesota in the 10,001 to 100,000 people size category, serving 10,978 people from groundwater.

As of August 1, 2026, its federal record holds 15 entries between 2011 and 2024, all of which EPA lists as closed.

Of the 15, 14 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals and the Total Coliform Rules.

Violation history

Monitoring, Regular
—
Chlordane
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
Endrin
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
BHC-GAMMA
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
Methoxychlor
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
Simazine
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
Atrazine
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
LASSO
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
Heptachlor
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
Heptachlor epoxide
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
October 1, 2024 – December 31, 2024
Archived
Monitoring, Regular
—
Benzo(a)pyrene
October 1, 2024 – December 31, 2024
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2011 – October 31, 2011
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2024 – December 31, 2024	Monitoring, Regular	Chlordane	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Endrin	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	BHC-GAMMA	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Methoxychlor	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Simazine	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Atrazine	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	LASSO	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Heptachlor	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Heptachlor epoxide	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Benzo(a)pyrene	—	Archived
October 1, 2011 – October 31, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

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

Enforcement actions

February 4, 2025State Formal Notice of Violation issued14 linked violations
February 4, 2025State Public Notification requested14 linked violations
December 24, 2015State Public Notification received1 linked violation
December 9, 2015State Compliance achieved1 linked violation
November 30, 2015State Technical Assistance Visit1 linked violation
November 30, 2015State Formal Notice of Violation issued1 linked violation
November 24, 2015State Formal Notice of Violation issued3 linked violations
November 8, 2011State Compliance achieved1 linked violation
November 3, 2011State Public Notification received1 linked violation
October 27, 2011State Formal Notice of Violation issued1 linked violation
October 27, 2011State Public Notification requested1 linked violation
October 27, 2011State Compliance Meeting conducted1 linked violation
October 27, 2011State Technical Assistance Visit2 linked violations
July 25, 2011State Compliance achieved1 linked violation
June 22, 2011State Public Notification requested4 linked violations
June 22, 2011State Technical Assistance Visit1 linked violation
June 22, 2011State Compliance Meeting conducted1 linked violation
June 22, 2011State Formal Notice of Violation issued1 linked violation
December 8, 2010State Compliance achieved1 linked violation
November 18, 2010State Public Notification received1 linked violation
October 22, 2010State Formal Notice of Violation issued1 linked violation
October 22, 2010State Compliance Meeting conducted1 linked violation
October 22, 2010State Technical Assistance Visit1 linked violation
October 22, 2010State Public Notification requested1 linked violation
October 16, 2002State Public Notification received1 linked violation
September 10, 2002State Formal Notice of Violation issued3 linked violations
December 28, 1993State Compliance achieved1 linked violation
December 21, 1993State Formal Notice of Violation issued7 linked violations
September 30, 1984State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Common questions

Is Lake Elmo required to publish a Consumer Confidence Report?: Yes. Lake Elmo is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is Lake Elmo’s next Consumer Confidence Report due?: Lake Elmo’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Lake Elmo have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for Lake Elmo.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

Lake Elmo City Council

6517473900

Lake Elmo, MN 55042