A town where most homes use public water
Much of Tomball sits in Harris County, with the area to the north reaching into Montgomery County, and a lot of the land has been developed with municipal or municipal utility district water. Homes in those areas are typically not on private wells at all.
Wells are more likely to turn up on older rural-style lots at the edges, on acreage that predates nearby development, and on properties that kept a well for irrigation after city water arrived. That makes Tomball the town where a well question is often about an existing system or about whether to keep it.
Rules that matter more here
Parts of Harris County are covered by the Harris-Galveston Subsidence District, which regulates groundwater withdrawals to limit land sinking, and other local rules may apply on top of that. The exact authority and requirements depend on where your parcel sits, so check with the district, the county and any utility district before you plan drilling.
In some places, a new well may be restricted or discouraged where public water is available. Do not assume you can drill a well on a developed lot. Ask first, and ask your provider what they have seen in your area.
Why Tomball owners call
Most calls concern existing equipment that has aged, along with the question of whether it is worth keeping.
- A pump or tank on a well installed decades ago
- An irrigation well that no longer delivers enough pressure or flow
- Rust, sediment or odor in water from a long-standing home well
- A buyer or seller needing a well inspected and water tested during a sale
- A choice between repairing a well and connecting to available public water
Repair, keep or connect
If public water is available, compare the full cost. Repairing a pump and tank can be far cheaper than a new well, and a well can lower outdoor watering costs. On the other hand, connection fees, monthly water bills and the effort of testing and maintaining a private well all belong in the comparison.
Ask a provider for an honest evaluation of the existing well's condition, including casing, flow and water quality, before deciding. A well that is nearing the end of its life may not be worth major investment.
Choosing a provider in the Tomball area
Look for a licensed pump installer or driller who knows the local rules and has worked on older wells, since those often have outdated parts and unknown construction details. Ask them to check the full system, not only the failed part, and to put findings and prices in writing.
Because many Tomball wells serve irrigation or secondary uses, tell the provider how the water is used. Systems that only water a lawn have different needs from those that supply a household.
If you are selling or buying, ask for the pump age, tank age and a recent water test in writing. Those three facts help both sides price the property fairly and avoid arguments after closing. Keep any receipts and well reports you already have, since they save time and money on the next service visit.
Common questions
Can I drill a new well on a lot in Tomball?
Maybe, but developed lots with public water available may face restrictions or practical limits. Check with the Harris-Galveston Subsidence District or the groundwater district that applies to your parcel, and with the county, before you plan anything.
Should I keep my old well or switch to public water?
It depends on the condition of the well, the cost of repairs, connection fees and your use. Many owners keep a working well for irrigation even after connecting to public water for the house.
My well is old and I do not know how it was built. Does that matter?
It can. A provider can often learn about casing, depth and condition by inspecting the wellhead and testing flow, and they can look up any well report on file.
Do I need a well inspection when buying a home with a well?
It is a good idea. An inspection and a water test can reveal pump age, tank condition, flow and water quality before closing.