Section ENV.06.08 — Wellhead Protection Districts
(a) WHPAs are divided into different wellhead protection districts. These districts are administrative areas where restrictions are placed on uses of land that can pose a threat of contamination to a well.
(1) The Reservation contains two types of wellhead protection districts.
(A) Groundwater Protection Overlay District A ("District A")
(i) The primary recharge area of a well is protected in District A.
(ii) The land in District A is subject to stringent use and development restrictions because of its close proximity to wells and the corresponding high threat of contamination.
(B) Groundwater Protection Overlay District B ("District B")
(i) Areas of secondary recharge receive protection in District B.
(ii) Land use restrictions within District B are less restrictive because of the longer flow time before reaching the well, the increased opportunity for containment dilution and the increased potential for attenuation.
(2) The size of these wellhead protection districts varies depending on the type of well with community water supply wells having the largest districts since they pump a greater volume of water and consequently draw water from a larger recharge area.
(b) For community water supply wells at the Tribe's primary housing area, which is located off of Camp 14 Road within Section 16, T.28 N., R. 13 E. of Shawano County:
(1) District A is described as those lands that lie within the five (5) year TOT. The 5-year TOT for these wells has been established as encompassing those lands within 2,982 feet of the wells; and
(2) District B is those lands beyond the 5-year TOT that lie within the twenty (20) year TOT and are located in a direction which lies from -15o to -70o off of true north. The 20-year TOT has been established as extending up to 11,928 feet from the wells, but only encompasses those lands to the south of the West Branch of the Red River.
(c) For non-community water supply wells on the Reservation:
(1) District A are those lands within a radius of 330 feet from the well; and
(2) District B are those lands extending out from District A to be within a total distance of 660 feet from the well.
(d) For private wells on the Reservation:
(1) District A is the area within a radius of 100 feet from the well.
(2) District B are those lands extending out from District A to be within a total distance of 300 feet from the well.
