Minnetonka Wood Flooring brings more than 20 years of practice to wood-flooring in Lake Elmo, and the first question we ask here is not about species or stain. It is where the house gets its water. That answer decides what sits in the lower level, what has to stay reachable, and what order the work runs in.
Sanding, refinishing and installing hardwood are the same trade on a city connection or a private well, but the house is not the same job site. A well brings a pressure tank, sometimes a treatment system, and lines that run through the same lower level that is often next in line for a new floor. We plan around that equipment instead of discovering it with a drum sander already rolling.
Before a crew is booked you get a written price per square foot with the recoat and the full sand shown side by side, plus the indoor relative humidity we read on the first visit. Subfloor, slab and structural repairs sit on their own line. We do no well or plumbing work, so nothing about the water system is folded into a floor number.
Lake Elmo’s Groundwater Carries a State Designation
What the Health Department Drew in 2007
On March 15, 2007, the Minnesota Department of Health (MDH) put a Special Well Construction Area into effect over parts of Lake Elmo and neighboring Oakdale. It remains in force until further notice. The designation covers part of the city, not all of it, so the first step is finding out which side of that line a property is on.
The area grew out of an older one. In 1982 a special well area was first established around the Washington County Landfill, and it was expanded and renamed in 2007 after perfluorochemical contamination of the groundwater was found to be more extensive. The landfill, about a quarter mile south of Lake Jane, operated from 1969 to 1975.
What the Sampling Found
MDH sampled 425 private and noncommunity wells and advised that 151 of them should not be used for consumptive uses. The neighborhoods it named as affected include Lake Elmo Heights, Tablyn Park, Torre Pines and Parkview. We report that record as it stands, with its dates, and we leave any question about a particular well’s water to the Health Department.
In the original 1982 area, municipal water from the Oakdale system was extended in 1986 and the private wells there were sealed. That history is part of why two houses a short drive apart can have completely different equipment downstairs, and why we ask instead of assuming from the street address or the age of the subdivision.
What the Designation Means for a Floor Job
The designation bears on water supply, not on wood. Nothing in the record ties it to how a floor performs, and we do not suggest otherwise. What it changes for us is logistics: if a well, a treatment unit or a water line has to be worked on, that work has its own rules and its own schedule, and the floor has to fit around it.
It also keeps us in our lane on site. We do not test water or offer any view on its quality; those questions belong to MDH and the well contractor. Our part is knowing where the equipment is, what work is coming, and how to keep a new finish out of its way.
Looking for wood-flooring closer to Hugo? See Wood-Flooring in Hugo.
City Water, a Well or a Treated Well: Find Out First
Three Questions Before We Quote
On the first visit we ask three things. Is the house on City of Lake Elmo water or a private well? If it is a well, is there treatment equipment, and where does it sit? And is any well, plumbing or water-line work planned in the next year, by the owner, a contractor or the city?
Owners usually know the answer to the first question, but not always the boundary question, and that is fine. We do not determine whether a property is inside the designated area; the Minnesota Department of Health is the authority on that. We only need to know enough to plan the order of trades and keep the equipment reachable.
Older Rural Houses and Newer Subdivisions
Lake Elmo’s housing runs young. Of 4,897 housing units, 2,064 were built in 2010 or later, and 54.7 percent date from 2000 onward. A smaller older layer remains, with 148 units built in 1939 or earlier, and older rural houses and newer subdivisions do not always share the same water arrangement.
The city’s own work shows the split. In the Old Village, the City of Lake Elmo is extending sanitary sewer to existing properties to replace private on-site systems, replacing aged watermain and reconstructing streets as part of the same project. If your house is in that work zone, we want to know the schedule before we put a date on a floor.
Why a Service Connection Matters Indoors
A new sewer or water connection usually means a plumber inside the house, often where the line enters the lower level. A fresh floor laid a week before that visit can end up under ladders, pipe and work boots. We would rather sequence the floor after the connection is made and inspected, even if that moves the start date.
The same logic runs the other way. If a floor is already down and a connection is coming, we can protect it with a breathable cover along the path the plumber will use, or hold a refinish until the work is done. A screen and recoat after the trades leave is usually a smaller job than a full sand and refinish.
Wood Floors Near Water Equipment in a Finished Lower Level
Grade First, Then Moisture
We decide the grade of a lower level by the three-inch soil rule, so a walkout with soil against part of its walls is quoted as below grade when it is. That call sets which products we will put down and how the slab or subfloor has to be prepared. Below grade, solid hardwood is usually off the table and an engineered floor, floated or glued, takes its place.
Then we measure. Moisture readings come off the slab or subfloor itself, with a pin moisture meter or pinless moisture meter on wood and an in-situ relative humidity test under ASTM F2170 on concrete, and they are written down before a board goes in. A hygrometer reading of the room goes on the quote as well.
Keeping Tanks and Treatment Units Reachable
A pressure tank, a softener or a treatment unit has to be serviced, and the people who service it need a clear path and room to work. We stop the floor short of the equipment area rather than running boards under a tank, finish the edge with a reducer or threshold, and leave the access the owner had before we arrived.
We do not move, disconnect or reroute any of it. If a unit has to shift to make a room work, that is a job for the right trade, done and checked before our crew starts. Our quote shows the floor around the equipment as it stands, and a separate line covers any subfloor or framing repair we find near it.
When Water Gets Where It Should Not
In a lower level that holds water equipment, a failed fitting or a sump pump backup can reach the floor before anyone sees it. If it happens, we photograph and moisture-map the floor for the insurance claim before drying or tear-out starts, so the adjuster sees the condition as it was. Cupping across the boards near a leak is a common early sign, and we record it on day one.
Where a lower level has a history of dampness, we lean toward an engineered floor with a vapor retarder suited to the slab, and we leave the expansion gap the NWFA installation guidelines call for at walls and around fixed equipment. Quarter round or baseboard covers the gap, and a floor with room to move is less likely to buckle.
Why Well Work Here Runs Through the Health Department
Plan Review Under Minnesota Rules
Inside the designated area, Minnesota Rules part 4725.3650 governs the construction, repair, modification and sealing of wells and borings. That work needs MDH plan review and approval, and the rule includes water-quality monitoring requirements. None of that is floor work, and we do not do it, but it sets the calendar for any project that has to wait on it.
So if a well is being repaired, modified or sealed, we schedule the floor after that work is approved and finished, not alongside it. Well sealing or a new water line can bring a crew and equipment through the lower level, and a fresh finish does not belong in that traffic. The finish floor itself needs no permit, since Minnesota Rules 1300.0120 exempts finish flooring from permit.
Frost Depth and the Footing Under a Floor
Washington County is a Zone II county under Minnesota Rules 1303.1600, with a minimum footing depth of three and one-half feet for frost. Frost depth is one reason water lines enter a house low, and a lower-level floor often sits close to where a service line comes through the foundation wall. We look for that entry point before we lay out the first row, so nothing we install blocks it.
Cold matters indoors as well. The Twin Cities January normal for 1991 to 2020 is a monthly mean of 16 degrees Fahrenheit, and a house heated against that in furnace season often sits below the 30 to 50 percent relative humidity band the NWFA sets for wood flooring. Seasonal gapping follows, and we explain whether a whole-house humidifier makes sense before any boards are ordered.
What We Put in Writing
Before work starts you have the finish chemistry, whether waterborne polyurethane or an oil-modified polyurethane, the cure time, and the day furniture, rugs and pets can come back, all in writing. On engineered flooring we measure the wear layer before promising a sand and refinish. Stairs are priced per tread and riser, not folded into a square-foot price.
For a house with a well, we also note the water equipment and its access on the job sheet, along with any well, sewer or watermain work the owner has scheduled. If that work moves, the floor date moves with it. It is a small step, and in this city it keeps two trades from sharing one lower level in the same week.
- 20+ Years on Wood Floors
- Per-Square-Foot Written Quotes
- Stairs Priced Per Tread
