Minnesota Administrative Rules

2890.3500 AT-GRADE WELL INSTALLATION.

Subpart 1.

General.

Costs for well installation of an at-grade well are as described in this part.

Subp. 2.

Hollow-stem auger.

Hollow-stem auger in sand, silt, or clay, with continuous sampling:

A.

subitems (1) and (2) list the depth of the well and the maximum cost per two-inch PVC well, and subitems (3) and (4) list the depth of the well and the maximum cost per two-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $2,254;

(2)

26 - 50 feet, $2,254 plus $68 per foot beyond 25 feet;

(3)

51 - 100 feet, $3,947 plus $81 per foot beyond 50 feet; and

(4)

over 100 feet, $7,973 plus $97 per foot beyond 100 feet;

B.

subitems (1) and (2) list the depth of the well and the maximum cost per four-inch PVC well, and subitems (3) and (4) list the depth of the well and the maximum cost per four-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $2,396;

(2)

26 - 50 feet, $2,396 plus $87 per foot beyond 25 feet;

(3)

51 - 100 feet, $4,551 plus $98 per foot beyond 50 feet; and

(4)

over 100 feet, $9,423 plus $129 per foot beyond 100 feet; and

C.

subitems (1) and (2) list the depth of the well and the maximum cost per six-inch PVC well, and subitems (3) and (4) list the depth of the well and the maximum cost per six-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $3,785;

(2)

26 - 50 feet, $3,785 plus $124 per foot beyond 25 feet;

(3)

51 - 100 feet, $6,885 plus $128 per foot beyond 50 feet; and

(4)

over 100 feet, $13,166 plus $145 per foot beyond 100 feet.

Subp. 3.

Mud or air rotary.

Mud or air rotary in limestone or hard rock, with surface sampling only:

A.

subitems (1) to (4) list the depth of the well and the maximum cost per two-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $3,543;

(2)

26 - 50 feet, $3,543 plus $74 per foot beyond 25 feet;

(3)

51 - 100 feet, $5,356 plus $85 per foot beyond 50 feet; and

(4)

over 100 feet, $9,623 plus $101 per foot beyond 100 feet;

B.

subitems (1) to (4) list the depth of the well and the maximum cost per four-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $3,988;

(2)

26 - 50 feet, $3,988 plus $96 per foot beyond 25 feet;

(3)

51 - 100 feet, $6,362 plus $106 per foot beyond 50 feet; and

(4)

over 100 feet, $11,595 plus $113 per foot beyond 100 feet; and

C.

subitems (1) to (4) list the depth of the well and the maximum cost per six-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $4,390;

(2)

26 - 50 feet, $4,390 plus $129 per foot beyond 25 feet;

(3)

51 - 100 feet, $7,570 plus $130 per foot beyond 50 feet; and

(4)

over 100 feet, $14,012 plus $147 per foot beyond 100 feet.

Subp. 4.

Air coring.

Air coring in limestone or hard rock, with continuous sampling:

A.

subitems (1) to (4) list the depth of the well and the maximum cost per two-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $4,269;

(2)

26 - 50 feet, $4,269 plus $92 per foot beyond 25 feet;

(3)

51 - 100 feet, $6,584 plus $108 per foot beyond 50 feet; and

(4)

over 100 feet, $11,978 plus $122 per foot beyond 100 feet;

B.

subitems (1) to (4) list the depth of the well and the maximum cost per four-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $4,913;

(2)

26 - 50 feet, $4,913 plus $97 per foot beyond 25 feet;

(3)

51 - 100 feet, $7,329 plus $129 per foot beyond 50 feet; and

(4)

over 100 feet, $13,690 plus $147 per foot beyond 100 feet; and

C.

subitems (1) to (4) list the depth of the well and the maximum cost per six-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $5,314;

(2)

26 - 50 feet, $5,314 plus $145 per foot beyond 25 feet;

(3)

51 - 100 feet, $8,940 plus $158 per foot beyond 50 feet; and

(4)

over 100 feet, $16,831 plus $190 per foot beyond 100 feet.

Subp. 5.

Rotosonic drilling.

Rotosonic drilling in sand, silt, or clay, with continuous sampling:

A.

subitems (1) and (2) list the depth of the well and the maximum cost per two-inch PVC well, and subitems (3) and (4) list the depth of the well and the maximum cost per two-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $4,430;

(2)

26 - 50 feet, $4,430 plus $131 per foot beyond 25 feet;

(3)

51 - 100 feet, $7,691 plus $134 per foot beyond 50 feet; and

(4)

over 100 feet, $14,455 plus $158 per foot beyond 100 feet;

B.

subitems (1) and (2) list the depth of the well and the maximum cost per four-inch PVC well, and subitems (3) and (4) list the depth of the well and the maximum cost per four-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $5,154;

(2)

26 - 50 feet, $5,154 plus $134 per foot beyond 25 feet;

(3)

51 - 100 feet, $8,535 plus $171 per foot beyond 50 feet; and

(4)

over 100 feet, $16,992 plus $189 per foot beyond 100 feet; and

C.

subitems (1) and (2) list the depth of the well and the maximum cost per six-inch PVC well, and subitems (3) and (4) list the depth of the well and the maximum cost per six-inch well (steel riser with PVC screen):

(1)

0 - 25 feet, $5,798;

(2)

26 - 50 feet, $5,798 plus $202 per foot beyond 25 feet;

(3)

51 - 100 feet, $10,832 plus $231 per foot beyond 50 feet; and

(4)

over 100 feet, $22,428 plus $275 per foot beyond 100 feet.

Statutory Authority:

MS s 115C.07

History:

28 SR 383; L 2010 c 241 s 4; MS s 115C.07 subd 3 paragraph (f)

Published Electronically:

December 12, 2025