In a nutshell, acid mine drainage is a form of water pollution that happens when rain, runoff, or streams come in contact with rock that is rich in sulfur. As a result, the water becomes very acidic and damages downstream aquatic ecosystems. In some regions it is the most common form of stream and river pollution.
Probate in Washington typically takes six months to a year, depending on some choices the executor makes (discussed below). It can take much longer there is a court fight over the will (which is rare) or unusual assets or debts that complicate matters. Unless there is a dispute, it's mainly a matter of filing paperwork.
Your claim is good for a benefit year, which is 52 weeks, beginning with the week you file your application. You cannot file a new claim in Washington until your benefit year is over, even though you may have received all of your benefits. Most claims receive between 13 to 26 weeks of benefits.