
Cumberland County, Maine
Well Chlorination in Gray, ME
Call (800) 696-9355 or request a visit. Monday to Friday, 8:00 AM to 5:00 PM.
Opening a wellhead for a pump replacement or repair gives bacteria a way in. In Gray, we recommend shock chlorination afterward as a standard precaution, and a test a week or so later to confirm everything is clean.
Well Chlorination for Gray homes
Beyond the commercial strip, the large majority of homes use private wells, from older shallow wells to modern drilled ones. Neighborhoods built in different decades have different pump, tank and well-depth histories, even a short distance apart.
Winter freeze-ups and spring melt put the most stress on pump houses and exposed lines, so that is when problems tend to surface. People moving to Gray for the commute often arrive with no water history, so a full first test is a good starting point.
What we see in Cumberland County wells
Inland wells in Cumberland County face bacteria risk from agricultural runoff, aging casings and nearby septic systems. In Gray, we pair shock chlorination with an inspection of the casing and cap, since a repeat positive often points to an entry path.
What we check first in Gray
- Total coliform and E. coli before and after treatment
- Drainage around the well, to see where water collects
- Iron or sulfur bacteria, if the water also has odor or slime

How it works
How we handle well chlorination, step by step
- 1
Inspect the well
We also review your last test results and note what prompted the chlorination, such as a positive coliform, a repair or a flood.
- 2
Dose and circulate
A measured dose of chlorine is introduced into the well and circulated through the plumbing, with a hose back to the well to mix it. Every tap and fixture is run until chlorine is detected.
- 3
Hold and flush
We plan the flush so that it does not overload the septic system or harm the garden. Where there is a risk, we suggest an alternate discharge path.
- 4
Retest the water
A clean result closes the loop. If it comes back positive, we look deeper at the cause and discuss next steps, such as repair, additional treatment or ongoing disinfection.

What shapes the job in Gray
Plan for a day without drinking the water. The house cannot use chlorinated water for drinking, cooking or laundry while the dose is in, and we explain the flush so that you can plan around it near the Gray crossroads and its hill roads.
When to consider shock chlorination
- The wellhead was flooded or submerged
- A new well has been drilled and needs disinfection
- Slime or odor that may point to bacteria in the plumbing
- A family member with an immune concern
Atlantic Water Solutions chlorinates wells across Cumberland County, including Gray and Gorham. Ask for a visit and tell us what prompted the test.
Well Chlorination in Gray?
Start with a test. We will explain the results in plain language and only recommend what the numbers support.

