Backflow Testing in Minnesota
Backflow Testing across Minnesota: the 298 ZIP codes and 141 cities we route calls in, and who licenses plumbers in the state.
Free to homeowners in Minnesota — the contractor pays us for the introduction, you never do.
Who has to test
Our backflow testing coverage in Minnesota runs to 298 ZIP codes in 141 cities. In a state that mixes large systems with small ones, a testing duty that is routine on one side of a county line can be unknown on the other, and the deadline a premises is held to is whichever its own water supplier sets.
Source: coverage area as published by our call partner; place and county names from the US Census Bureau.
We route backflow testing calls in 298 ZIP codes across 141 Minnesota cities, in 21 counties.
What this site is
CrossConnect is a referral service, not a contractor. We connect property owners and managers with independent contractors. Backflow assembly testing is normally restricted to testers holding a specific certification and using calibrated equipment, and the report usually has to reach your water purveyor — ask to see the certification and ask who files the report. We carry out no testing, we certify nobody, we do not set prices, and we never charge callers anything. Nothing here selects a device for any installation or states that any assembly is passing.Checking a credential in Minnesota
Minnesota licenses are issued by the Minnesota Department of Labor and Industry, which publishes a public search you can use before work begins. The Minnesota lookup also shows bond status and any enforcement action.
18 of the 21 Minnesota counties we cover, from the top of the alphabet
- Anoka County 6 ZIP codes
Andover, Anoka, Bethel, Cedar, Circle Pines, Saint Francis - Benton County 1 ZIP code
Rice - Carver County 14 ZIP codes
Norwood Young America, Carver, Chanhassen, Chaska, Cologne, Hamburg, Mayer, New Germany, Victoria, Waconia, Watertown, Young America - Chisago County 10 ZIP codes
Stacy, Center City, Chisago City, Harris, Lindstrom, North Branch, Shafer, Taylors Falls, Wyoming - Dakota County 13 ZIP codes
Burnsville, Inver Grove Heights, Farmington, Hampton, Hastings, Lakeville, Mendota, Randolph, Rosemount, South Saint Paul, Vermillion - Dodge County 6 ZIP codes
Claremont, Dodge Center, Hayfield, Kasson, Mantorville, West Concord - Goodhue County 7 ZIP codes
Cannon Falls, Goodhue, Kenyon, Pine Island, Wanamingo, Welch, Zumbrota - Hennepin County 104 ZIP codes
Minneapolis, Maple Plain, Loretto, Eden Prairie, Hopkins, Osseo, Champlin, Dayton, Excelsior, Hamel, Long Lake, Maple Grove, Minnetonka, Mound and 4 more - Isanti County 2 ZIP codes
Cambridge, Isanti - Mcleod County 1 ZIP code
Winsted - Mille Lacs County 5 ZIP codes
Bock, Foreston, Onamia, Pease, Princeton - Morrison County 2 ZIP codes
Hillman, Pierz - Olmsted County 9 ZIP codes
Rochester, Byron, Dover, Eyota, Oronoco, Stewartville - Pine County 1 ZIP code
Pine City - Ramsey County 46 ZIP codes
Saint Paul - Rice County 4 ZIP codes
Dundas, Faribault, Lonsdale, Northfield - Scott County 8 ZIP codes
Elko New Market, Belle Plaine, Jordan, New Prague, Prior Lake, Savage, Shakopee - Sherburne County 5 ZIP codes
Becker, Big Lake, Clear Lake, Elk River, Zimmerman
3 more Minnesota counties are inside the coverage area and are not listed here. If your ZIP code is in Minnesota, the call reaches a contractor.
What that coverage looks like
The 21 counties in our Minnesota footprint are served by many separate water suppliers, and each one decides which premises must test and how often. Hennepin County, with 150 covered ZIP codes, is the largest single block of them; Minneapolis alone holds 68.
How a backflow testing job goes
A backflow test is a scheduled job that ends in a document. The assembly is isolated, the differential across it is measured, the result is written down, and the report goes to whoever requires it. A failed test means a repair or a rebuild and then a re-test; it does not mean the premises closes that day.
What the call asks about backflow testing
- What kind of premises it is and what is connected to the supply — irrigation, a boiler, a fire line, a commercial kitchen.
- Who is asking for the test: a water supplier, a health department, or a landlord.
- Whether there is an existing assembly with a serial number on it, and when it was last tested.
Every Minnesota city we route in
59 cities, ordered by the share of buildings with twenty or more units. Containment assemblies are required building by building, and that is where the buildings are. Each page carries that city’s own numbers and the ZIP codes we route there.
- Hopkins 42%
- Minneapolis 26%
- Burnsville 26%
- Saint Paul 21%
- Wayzata 18%
- Eden Prairie 15%
- Rochester 15%
- Forest Lake 15%
- Chaska 14%
- Osseo 14%
- Minnetonka 14%
- Anoka 13%
- Inver Grove Heights 13%
- Stillwater 13%
- Shakopee 12%
- Hastings 11%
- South Saint Paul 10%
- Mound 10%
- Chanhassen 10%
- Cambridge 10%
- Northfield 9%
- Champlin 9%
- Faribault 9%
- Rogers 8%
- Monticello 8%
- Lake City 8%
- Isanti 8%
- Elk River 7%
- Stewartville 7%
- Circle Pines 7%
- Delano 7%
- Savage 6%
- Waconia 6%
- North Branch 6%
- Lakeville 6%
- Maple Grove 6%
- Princeton 5%
- New Prague 5%
- Prior Lake 5%
- Cannon Falls 5%
- Buffalo 5%
- Excelsior 4%
- Pine City 4%
- Rosemount 4%
- Byron 4%
- Albertville 4%
- Cottage Grove 4%
- Hamel 4%
- Victoria 4%
- Farmington 4%
- Belle Plaine 3%
- Becker 3%
- Hugo 3%
- Saint Michael 2%
- Cedar 2%
- Andover 2%
- Jordan 2%
- Zimmerman 2%
- Lake Elmo 2%
Before you call
A test is a scheduled job with a report at the end of it, not a repair. What the report has to show, and who it goes to, are on the pages above.
