(1) If any area of the state is omitted from the reapportionment plan approved by the Colorado supreme court, inadvertently or by virtue of the complexities of the census materials used in the development of the plan, the secretary of state, upon discovery of such omission, shall determine to which senatorial or representative district the area should be assigned as follows:

(a) If the area is surrounded by a representative or senatorial district, the area shall be assigned to said district; and

(b) If the area is contiguous to two or more representative or senatorial districts, the area shall be assigned to the district that has the least population according to the latest national census.

(2) If any area of the state is included in two or more senatorial or representative districts in the reapportionment plan approved by the Colorado supreme court, inadvertently or by virtue of the complexities of the census materials used in the development of the plan, the secretary of state, upon discovery of such inclusion, shall detach said area from the senatorial or representative district or districts having the largest population and shall designate such area as being assigned to the district having the least population; except that, if such area is wholly surrounded by a senatorial or representative district and by inadvertence is also included in another district, the secretary of state shall assign such area to the district wholly surrounding such area, regardless of population.

(2.5) (a) If a county clerk and recorder discovers that a border between two senatorial or representative districts divides a residential parcel between the two districts and the clerk and recorder wishes to have the border moved, the clerk and recorder shall submit to the secretary of state documentation, satisfactory to the secretary of state, evidencing such division. If the secretary of state believes that the border should be moved, the secretary of state shall propose moving the border between the two districts to a visible feature normally relied upon by the United States census bureau such that the border:

(I) Does not split a residential parcel;

(II) Moves the remaining portion of the residential parcel into the least populated of the two districts; except that, if the border is a border between both senatorial and representative districts, the remaining portion of the residential parcel shall be moved into the least populated of the two representative districts;

(III) Would not result in a violation of section 46 or 47 of article V of the state constitution based upon the latest national census;

(IV) Minimizes the impact on the affected community for purposes of establishing polling locations; and

(V) Minimizes changes in distances from the reapportionment plan approved by the Colorado supreme court.

(b) If the secretary of state proposes moving any border pursuant to this subsection (2.5), the secretary of state shall describe any potential changes in populations of affected senatorial or representative districts, based on the latest national census, to the Colorado supreme court. If the supreme court determines that the assignments made by the secretary of state satisfy the criteria established in paragraph (a) of this subsection (2.5), the supreme court may approve said assignments. If the supreme court determines that the assignment does not satisfy the criteria established in paragraph (a) of this subsection (2.5), the supreme court shall deny the proposed assignment.

(3) Following the assignment of any area pursuant to the provisions of subsection (1) or (2) of this section, the secretary of state shall certify the population of such assigned area and any changes in populations of affected senatorial or representative districts, based on the latest national census, to the Colorado supreme court. If the supreme court determines that the assignments made by the secretary of state would not result in a violation of the population requirements of section 46 of article V of the state constitution, the supreme court shall approve said assignments. If the supreme court determines that the assignments would result in a violation of the population requirements of section 46 of article V of the state constitution, the supreme court shall certify a revised reapportionment plan to the secretary of state.