The phrase "adequately maintained" is correct and usable in written English.
You can use it to describe something that has been kept in a satisfactory condition or state, often referring to equipment, facilities, or properties.
Example: "The building has been adequately maintained over the years, ensuring its longevity and safety for all occupants."
Alternatives: "properly cared for" or "sufficiently looked after".
Massey officials denied culpability, claiming that a sudden seepage of natural gas "overwhelmed" an adequately maintained ventilation system.
Baker Spring, an analyst at the conservative Heritage Foundation, said Mr. Kyl was simply acting to ensure that the nation's nuclear program was adequately maintained.
The road system has not been adequately maintained since the mid-1990s, and much of it has fallen into a state of disrepair.
This amount is several times the income support allowance of £5,795.40 per annum deemed sufficient for a UK couple, and used as the previous benchmark to determine whether migrants to the UK could be adequately maintained.
In a bid to ensure all safe water sources in Katine are adequately maintained, Amref plans to offer training for committees charged with maintaining water sources established by the government and other NGOs.
Dozens of parks, biological reserves, and other protected areas have been established in Brazil's vast wildernesses, many of which remain pristine; however, state and federal governments have not adequately maintained many parklands, and some have been modified to allow for new highways or other construction projects.
She said BP Alaska admitted that itfailed to adequately maintain its pipelines.
And they have disputed the assertion of some experts that the authority had failed to adequately maintain the fireproofing.
A lack of investment means we are really struggling to increase road capacity, let alone adequately maintain what we already have," said John Cridland, CBI director-general.
He focuses on underfinanced education, especially in the desperate villages that lack the resources to adequately maintain and supply their tumbledown schools.
Even as more strain was being placed upon the rail system, however, the non-industrialized South was less and less able to adequately maintain or repair them.
