|
OPTION 2 for Rule 5.2.2
<br />
<br /> 5.2.2 Northern High Plains Designated Ground Water Basin Ogallala Aquifer (including Alluvial and White River Aquifers).
<br />
<br /> 5.2.2.1 The areal extent of the Ogallala Aquifer (including Alluvial and White River Aquifers) IS are considered to coincide with the areal extent of the Northern High Plains Designated
<br /> Basin.
<br />
<br /> 5.2.2.2 The Ogallala Aquifer (including Alluvial and White River Aquifers) within the Northern High Plains Designated Ground Water Basin is determined to be overappropriated and, therefore,
<br /> no new large capacity well permits shall be granted unless a replacement plan is approved by the Commission.
<br />
<br /> 5.2.2.3. Any replacement plan must be adequate to prevent material injury to ALL water rights of other appropriators in accordance with Rule 5.6. the plan must also provide for the
<br /> replacement of any depletions caused to the Stream systems described within the RRCA ground water model domain, approved in the final settlement stipulation in the case Kansas v. Nebraska
<br /> and Colorado, no. 126 original.
<br />
<br /> 5.2.2.2 All new appropriations shall be controlled by management criteria that limit the maximum allowable rate of depletion to 40% of the water in storage within the saturated materials
<br /> over a 100 year period. The amount of water in storage shall be determined as of the date of acceptance of a complete application.
<br />
<br /> 5.2.2.3 In the evaluation of new permit applications, the following three mile radius circle formula shall be used in the determination of whether an application shall be granted or
<br /> denied:
<br />
<br /> A = 640(D)(S.Y.) 3.1416 R2 H + 640(f)(Pr) 3.1416 R2
<br /> (1.0 Ir)t 12(1.0 Ir)
<br />
<br /> where,
<br /> A = Annual appropriation allowable within the circle being
<br /> evaluated in acre feet per year
<br /> D = Allowable depletion (expressed as a decimal)
<br /> S.Y. = Specific yield (dimensionless)
<br /> R = Radius of circle (miles)
<br /> H = Average saturated thickness within the circle (feet)
<br /> t = Time period during which depletion, D, occurs (years)
<br /> Pr = Precipitation recharge (inches/yr.)
<br /> f = Fraction of Pr that is available for appropriation in the
<br /> circle (dimensionless)
<br /> Ir = Fraction of A that returns to the aquifer as deep
<br /> percolation, i.e., irrigation return (dimensionless)
<br />
<br /> The constants in the above equation are:
<br />
<br /> D = 0.4, S.Y. = 0.15, R = 3 miles, t = 100 years, f = 0.2 and
<br /> Ir = 0.15
<br />
<br /> Use of these constants in the formula above gives:
<br />
<br /> A = 12.77H + 354.82Pr
<br />
<br /> Saturated thickness, H, shall be determined by an evaluation of contour maps developed from well completion reports of existing wells as well as other pertinent available water level
<br /> data. Precipitation recharge, Pr, will be determined from Figure 18 of the report "Distribution of Ground Water Recharge," AER66 67 DLR9, Colorado State University, June 1967 by Donald
<br /> L. Reddell.
<br />
<br /> 5.2.2.4 When the three mile circle includes the White River Formation, located in the area as shown on figure 1, the value for Specific Yield (S.Y.) in the above formula will be 0.25.
<br /> The thickness of saturated materials, H, will be the average net sands thickness in the three mile circle. The annual available appropriation from within the three mile circle can
<br /> then be computed as:
<br /> A = 21.29H + 354.82Pr
<br />
<br /> 5.2.2.5 Appropriations within the three mile circle shall be included as a chargeable appropriation against the application for the stated annual appropriation on a final permit or
<br /> for the amount evidenced to have been put to beneficial use under a valid conditional permit. The appropriation amounts on all new conditional permits and prior applications not yet
<br /> permitted shall also be included as chargeable amounts against the application.
<br />
<br /> 5.2.2.6 When an application is received within 3 miles of the state line or the boundary of the Northern High Plains Designated Basin, the volume of water in storage, the amount of
<br /> precipitation recharge and the existing appropriations shall be calculated in such a way as to only include those amounts within the basin and within Colorado.
<br />
<br /> 5.2.2.7 When an application is received within 3 miles of the administrative line shown in Figure 1, the amount of water in storage shall be determined by adding the amounts of water
<br /> in storage under the parts of the three mile circle in the net sand area (Rule 5.2.2.4) and the regular sand area (Rule 5.2.2.3).
<br />
<br /> 5.2.2.8 No new application for a well in the Ogallala Aquifer, absent a replacement plan in accordance with Rule 5.6, shall be granted in an area within three miles of a point of live
<br /> flow on the North Fork of the Republican River, Chief Creek, or their tributaries. This area is shown in Figure 2.
<br />
<br />5.2.2.9 The following sections in Kiowa and Prowers Counties are deemed overappropriated for the Ogallala Aquifer and no new appropriations will be approved absent a replacement plan
<br /> in accordance with Rule 5.6:
<br />
<br /> Township 21 South, Range 41 West: Sections 5 through 8, 18;
<br /> Township 21 South, Range 42 West: Sections 1 through 20
<br /> Township 21 South, Range 43 West: Sections 1, 2, 11 through 13;
<br /> Township 20 South, Range 42 West: Sections 7, 8, 17 through 21, and
<br /> Sections 28 through 36
<br /> Township 20 South, Range 43 West: Sections 1, 2, 10 through 36;
<br /> Township 20 South, Range 44 West: Sections 13, 24, 25, 36.
<br />
|