A. Billings shall be sent to the owner of record of the properties or structures for which service is furnished or made available so far as the Department can reasonably ascertain. "Reasonably ascertain" shall mean resorting first to the indexed records of the Pierce County Assessor-Treasurer's Office, and second, if those records are found not to reflect the current ownership, the indexed records of the Pierce County Auditor's Office. It shall not mean resorting to certified or registered mail, or messengers, on a regular basis for any one account.

B. Failure to receive such billings shall not relieve the property owner from paying any service charges owed or from paying any penalty, interest, foreclosure costs, or all lien recording and release fees that are accrued upon failure to pay such billings when due. In addition, failure to receive such billings shall not prevent the Department from attaching a lien to the property as provided in RCW 36.94.150 and as prescribed in PCC 13.13.045.

C. At the property owner's option, a signed form designating to whom billing shall be sent may be filed with the Department. Such document shall be in a form prescribed by the Department. Such document shall not relieve the property owner from the responsibility for payment of all service charges, penalties, interest, foreclosure costs, and all lien recording and release fees.

D. The owner of record of the property shall be responsible for the payment of all service charges, penalties, interest, foreclosure costs, and all lien recording and release fees.