NR 811.12(6)(d)(d) Identification of the potential contamination sources within 0.5 mile of the well location and an assessment of the potential for the existing contamination sources within the recharge area of the well to negatively impact the well water quality. The potential contamination sources shall be summarized in a table or list including distance and direction from the well site and shall also be shown on a map surrounding the well site. The table or list shall include information obtained by checking the department’s database of contaminated properties, established in accordance with ss. 292.12 (3), 292.31 (1), and 292.57, Stats.

NR 811.12 NoteNote: The department’s database of contaminated properties, established in accordance with ss. 292.12 (3), 292.31 (1), and 292.57, Stats., can be found on the department’s Bureau for Remediation and Redevelopment internet web site. The Bureau for Remediation and Redevelopment Tracking System (BRRTS) is an on-line database that provides information on areas of known contaminated soil or groundwater and tracks the status of the cleanup actions. RR Sites Map is the program’s geographic information system that provides a map-based system of contaminated properties in Wisconsin. Information that appears on the RR program’s database and GIS applications can also be obtained by contacting the regional drinking water staff person responsible for the water system. A copy of A Guide For Conducting Potential Contaminant Source Inventories For Wellhead Protection may be obtained from the department.

NR 811.12(6)(e)(e) Establishment of a well head protection area for the proposed well. The well head protection area shall encompass, at a minimum, that portion of the recharge area equivalent to a 5 year time of travel to the well. The well head protection area may be determined by a hydrogeologic investigation.

NR 811.12(6)(i)(i) A management plan, which assesses alternatives for addressing potential contamination sources, describes the local ordinances, zoning requirements, monitoring program, and other local initiatives proposed within the well head protection area established in par. (e), and addresses maintaining the minimum contamination source separation distances established by well siting in sub. (5) (d).

NR 811.12 NoteNote: A copy of Example Wellhead Protection Ordinances may be obtained from the department’s Bureau of Drinking Water and Groundwater located in Madison.

NR 811.12(6)(j)(j) The well head protection plan shall be labeled with the name and signature of the person who prepared the plan, the date that the plan was signed, and the name of the company or water system which the person represents. An owner approval letter shall be submitted when required in accordance with s. NR 811.10.

NR 811.12(7)(a)(a) The protective casing shall be new prime steel pipe produced to and meeting ASTM, A 53 Grades A or B, ASTM A 106; ASTM A 589 Type I, Grade A or B, Type II, Grade A or B; or API 5L specifications. Previously used or reclaimed pipe may not be used.

NR 811.12(7)(b)(b) Each length of casing shall be legibly marked in accordance with s. NR 812.11 (6) (d). The protective casing shall have the minimum weights and thicknesses given in Table 1.

NR 811.12(7)(c)(c) Liner pipe installed to seal off a caving zone shall be new, unused, and non-reclaimed steel pipe and shall have the minimum weights and thicknesses given in Table 1. The department may, on a case-by-case basis, approve the installation of ungrouted stainless steel repair sleeves, but only if the well is bacteriologically safe and water quality of the well meets all of the primary drinking water quality standards specified under ch. NR 809.

NR 811.12(7)(e)(e) All casings and liner pipe shall have additional thickness and weight if the Table No. 1 standard thickness is insufficient to assure reasonable life expectancy or to withstand the forces to which they may be subjected.

NR 811.12(7)(f)(f) Casing and liner pipe shall be equipped with a drive shoe when driven and centering guides when set. The locations of all centering guides to be installed shall be shown on the plans or noted in the specifications, or both.

NR 811.12(7)(g)(g) Casing and liner pipe shall be assembled watertight by means of joints welded in accordance with the standard welding procedure specifications of s. NR 812.18 or by threaded couplings meeting or equivalent to the specifications listed in par. (a).

NR 811.12(7)(h)(h) Protective casings shall rest on native formation during grouting for new well construction. Hung liner casings may be used for reconstruction of existing wells. Hung liner casing shall be securely attached by welding steel bands to the outer casing or by other approved methods, and the grout shall be supported on a steel ring welded to the bottom of the liner pipe or on an approved packer attached to the bottom of the liner pipe. The bottom of the protective casing or liner pipe may be flared out to meet this requirement.

NR 811.12 NoteNote: Copies of the forgoing specifications and standards are available for inspection at the central office of the department of natural resources and may be obtained for personal use from the American Society for Testing and Material (ASTM), 100 Barr Harbor Drive, PO Box C700, West Conshohocken, Pennsylvania 19148-2959, and the American Petroleum Institute (API), 1220 L Street NW, Washington, DC 20005-4070.

NR 811.12(9)(9) Packers. A packer may be utilized for test pumping, isolating portions of a well for water quality sampling, and for grouting liner casings. Permanent well reconstruction may not be completed with an inflatable packer. The packer shall be of a material that will not impart taste, odors, toxic substances, or bacterial contamination to the water in the well. Lead packers may not be used.

NR 811.12(10)(c)(c) Be designed to have an entrance velocity that does not exceed 0.1 feet per second under normal operating conditions or as detailed in AWWA Standard A100-20 dated July 1, 2020, which is incorporated by reference.