Due to facility issues, this licensing program has limited operations. There may be delays in responding to requests. We apologize for the inconvenience. We’re working toward resuming all business operations as soon as possible.
A practicing on-site wastewater design professional:
The following examples are general guidelines, and shouldn’t be considered all inclusive.
|Design area||Subjects addressed by on-site wastewater design professionals|
|Evaluation of soil|
Contact us: DFCcompliance@dol.wa.gov