Holding tanks shall be considered on an individual basis. Three complete sets of plans, as required in Wisconsin Administrative Code § SPS 383.22, shall be submitted to the County issuing agent for each request to install a holding tank.
One- and two-family dwellings. Minimum liquid capacity of a holding tank for one- and two-family dwelling applications must not be less than 2,000 gallons or five times the estimated daily wastewater flow determined in accordance with § SPS 383.43(3), (4), (5), Wisconsin Administrative Code, whichever is greater.
Public facilities. Minimum liquid capacity of a holding tank for public facilities must not be less than 2,000 gallons or five times the estimated daily wastewater flow, whichever is greater, as determined in accordance with § SPS 383.43(6), Wisconsin Administrative Code.
Applicants for holding tanks shall first receive approval from the local government, and then have a signed and notarized holding tank agreement recorded in the Register of Deed's office. The holding tank agreement shall be binding on the owners, their heirs and assignees.
Applicants for holding tanks shall submit a signed and notarized holding tank servicing contract with a certified septage servicing operator to the County issuing agent prior to the issuance of a state sanitary permit. The holding tank servicing contract will remain in effect until the owner or Wisconsin DNR certified septage servicing operator terminates the contract. In the event of a change in servicing contract, the owner agrees to file a copy of any changes to this service contract or a copy of a new service contract with the County issuing agent within 10 business days from the date of change to this service contract. Holding tank servicing frequency shall follow § SPS 383.54(3)(c), Wis. Adm. Code and Section VII of the Holding Tank Component Manual. The servicing contract guarantees a Wisconsin DNR certified septage servicing operator is hired for pumping and transport of the holding tank contents to a Wisconsin DNR approved disposal site meeting the requirements of Chapter NR 113, Wisconsin Administrative Code. The servicing contract is necessary to prevent or abate a nuisance as described in the Wisconsin Administrative Code and § 254.59, Wis. Stats.
The installation of holding tanks shall be made in accordance with the following criteria:
Materials. The tank shall be constructed of materials approved by the Department.
Location. Tanks shall be located in accord with Wisconsin Administrative Code Table 383.43-1.
Warning device. A high water warning device shall be installed. This device shall be either an audible or an indoor illuminated alarm. If the latter, it shall be conspicuously mounted.
Manhole. Each tank shall be provided with a manhole opening no less than 23 inches in the least dimension. Manhole openings located above treatment apparatus and pumps shall extend a minimum of four inches above the ground surface. Each manhole cover shall have an effective locking device. Other manhole openings shall be located no greater than six inches below ground level.
Septic tank. If an approved septic tank is installed to serve as a holding tank, the inlet and outlet baffles shall be removed and the outlet sealed.
Vent. Each tank shall be provided with a minimum four-inch fresh air inlet extending 12 inches above final grade, terminating with an approved vent cap a minimum of 10 feet from a service door, window or fresh air inlet.
Servicing. Holding tanks shall be serviced in accord with § SPS 383.54(3)(c), Wis. Adm. Code, Chapter 145, Wis. Stats., and Wisconsin Administrative Code Chapter NR 113.
Before any holding tank is purchased or installed, a sanitary permit shall be obtained in accord with § 145.19, Wis. Stats.
The agent for holding tank plan examination and approval shall be the Pierce County issuing agent.