Is Ham Lake, MN tap water safe?
The short answer
None of the 4 utilities serving Ham Lake has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Minnesota’s records.
Andover, which serves the most people here, has 1 result above the health goal. The worst: Arsenic at 1.7 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Ham Lake’s ZIP codes, from EPA’s estimates.
- Open report
Andover
Minnesota · serves 21,455 people · about 12,100 in Ham Lake
1 result above the health goal. The worst: Arsenic at 1.7 ppb, above the health goal.
No health-based violations since 2016
- Open report
Flamingo Terrace Mobile Home Park
Minnesota · serves 804 people · about 440 in Ham Lake
1 result above the health goal. The worst: Arsenic at 1.5 ppb, above the health goal.
No health-based violations since 2016
- Open report
Willows of Ham Lake
Minnesota · serves 69 people · nearly all in Ham Lake
1 result above the health goal. The worst: Arsenic at 2.5 ppb, above the health goal.
No health-based violations since 2016
- Open report
Majestic Greens LLC Senior Living (Apt.)
Minnesota · serves 67 people · nearly all in Ham Lake
2 results above the health goal. The worst: Arsenic at 6.9 ppb, above the health goal.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Andover’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic
Water testing near Ham Lake
The 3 labs Minnesota certifies closest to Ham Lake, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Instrumental Research, Inc.
Fridley, MN · about 10 miles
Certified for bacteria, nitrate
Water Laboratories, Inc.
Elk River, MN · about 15 miles
Certified for bacteria, nitrate, lead and copper, metals
EMSL Analytical, Inc.
New Hope, MN · about 17 miles
Certified for bacteria, nitrate, lead and copper, metals
ZIP codes in Ham Lake
Which ZIP codes are in Ham Lake: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Minnesota Department of Health, accredited labs in Minnesota accepting drinking water samples from private well users; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Ham Lake
Other towns in Anoka County with a page of their own.
What to do next
- Read Andover’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water