Section NR 811.44 - Pilot testing Pilot testing is required to establish effective treatment and operation requirements for new treatment methods, if revisions are proposed to existing treatment methods, if the water quality poses significant treatment issues, and if design parameters need to be determined for the first time or for the specific site conditions. The department may waive the pilot testing requirement if information on other locations where the proposed treatment methods using similar water quality are already in place and operating successfully is available or if other justification necessary to support the proposed treatment processes is submitted to the department. Pilot testing shall address the following requirements:
(1) Plans, specifications, and an engineering report detailing the proposed pilot plant design, operation, sampling, lab analyses, and any waste disposal shall be submitted to the department and the written approval of the department shall be obtained prior to constructing or operating the pilot plant. At minimum, the pilot plant proposal shall address the following issues, where they apply:(a) Pilot plant treatment design including all operating parameters.(b) Length of pilot plant operation. The pilot plant shall operate long enough to establish the treatment effectiveness, media run lengths, wastewater volumes and characteristics, and any other necessary operating parameters. The pilot plant shall operate through a minimum of 2 treatment cycles or as determined by the department.(c) Chemicals and chemical feed equipment to be used along with chemical addition rates.(f) Backflow or back-siphon protection for any water system facilities that the pilot plant may be connected to.(g) Pilot plant security.(h) Justification for pilot plant design and operation that does not meet the requirements of the applicable sections of subch. VII.(2) A report summarizing the results of the pilot plant testing and making recommendations for any full scale water system improvements shall be submitted to the department for review and comment by the owner or the owner's representative prior to or along with the submittal of plans and specifications for any permanent installations.Wis. Admin. Code Department of Natural Resources NR 811.44
CR 09-073: cr. Register November 2010 No. 659, eff. 12-1-10.Amended by, CR 22-074: cr. (1) (h) Register January 2024 No. 817, eff. 2/1/2024The department recommends the submittal of pilot plant results reports prior to submittal of final plans and specifications for treatment vessels.