Board continues decision on holding tank request at 5562 Clemens Lane amid floodplain and capacity concerns

The Valley County Board of Health continued consideration April 9 of a holding-tank application for 5562 Clemens Lane, asking the property owner to appear or submit formal authorization for a representative and to provide detailed plans on seasonal use, pumping frequency and engineering calculations.

Staff reported that an elevated replacement sand mound installed in 2021 serves the existing house on the parcel; the applicant has built a new four‑bedroom house and applied to connect the new house to the existing system while converting the older house to a holding tank, which would be used seasonally by family and friends. The owner was not present at the meeting and the person attending said they did not have formal authorization to act on the owner’s behalf. The board declined to decide in the owner’s absence and continued the item to the May meeting.

Board members raised multiple technical and policy concerns. Floodplain mapping left limited non‑floodplain area on the parcel, constraining the placement of additional septic systems or replacement fields. The board noted that holding tanks are prone to becoming effectively permanent if monitoring and limits are not strictly enforced; members discussed prior cases in which holding‑tank arrangements were extended or repurposed and said they were reluctant to broadly allow a holding tank for a full‑time four‑bedroom residence. The board emphasized the county’s current practice that holding tanks are intended for limited, documented seasonal use and that owners must provide a pumping plan and record of anticipated occupancy.

Staff and board advised the applicant to submit the following ahead of the May meeting: a written statement from the property owner or a notarized power of attorney authorizing the in‑person representative; the engineer’s calculations showing whether a replacement drainfield or pressure system is feasible outside mapped floodplain; a clear statement of intended use (seasonal/private versus commercial or full‑time occupancy); the proposed holding‑tank size and pumping interval; and a plan for recordkeeping and notification to county staff.

Why it matters

The board’s decision on holding‑tank policy affects how properties in floodplain‑constrained areas can be used. Holding tanks may be the only practical option for some parcels with limited buildable area, but they carry regulatory and monitoring implications that affect groundwater protection and future land‑use expectations.

Next steps

The board continued the item to the May meeting and instructed staff to accept written materials and to allow the owner to appear by Zoom or in person. Staff asked the applicant to coordinate directly with Environmental Health to deliver engineering documentation and a formal authorization for the representative.