(1) Upon receiving the notice to proceed, the owner may proceed with the environmental review. To proceed, the owner shall submit an SRS that meets the requirements of WAC 246-272B-03200.

(2) After reviewing all submitted information, the department shall provide a written notice of determination to the owner.

(a) If the department determines that the SRS contains sufficient information to determine the public health and environmental impacts of the LOSS and the LOSS is feasible, the notice of determination must include instructions to proceed to engineering.

(b) If the department determines that site conditions identified in the SRS require further evaluation to determine the public health and environmental impacts of the LOSS, the notice of determination must include instructions for the owner to submit an HGR.

(3) Upon receiving the notice requiring an HGR, the owner may complete an HGR. To proceed, the owner shall submit an HGR that meets the requirements of WAC 246-272B-03300 and is prepared, signed, and dated by a licensed hydrogeologist.

(4) After reviewing all submitted information, the department shall provide a written notice of determination to the owner.

(a) If the department determines that the HGR contains sufficient information and the LOSS is feasible, the notice of determination must include instructions to proceed to engineering.

(b) If the department determines that the HGR indicates the LOSS is not feasible due to unacceptable environmental or public health impacts, the notice of determination must include an invoice for all unpaid fees and the reasons for the decision, and the department shall discontinue review of the project.

(5) An owner may satisfy the requirements of an SRS by submitting an HGR that meets the requirements of WAC 246-272B-03300.