In this task, given a sentence in the English language, your task is to convert it into the Japanese language.
One example: Test subjects will be administered either a placebo or PA-457 that will be taken in combination with the medication they already take.
Solution is here: 被験者は、彼らがすでに服用している薬剤と一緒に偽薬またはPA-457を与えられる。
Explanation: The above sentence is correctly translated from English to Japanese.

Now, solve this: Environmental groups were pleased with the decision, but are concerned over other actions of the Bush Administration, such as the attempts to weaken provisions of the 2002 Clean Water Act to allow additional dumping of construction and mining waste into waterways as fill material.
Solution:
環境グループは決定に満足したが、ブッシュ政権の他の行動、建設業や鉱業の廃棄物を盛土材料として水路に投棄することを許すために２００２年の水質清浄法の規定を弱める試みのような行動を懸念している。