3745-9-05 Well construction.

 

 

 

TO BE RESCINDED

 

        Construction of new wells.

 

 

 

(A)

 

(1)   If no plan approval is required therefor by 3745-9-03, a new well shall either contain casing, or shall have sturdy watertight walls of laid-up brick, stone, concrete, or vitreous clay tile.

 

(2)    If plan approval is required therefor by 3745-9-03, a new well shall contain casing.

 

(B)    If casing is used in a new well, all joints shall be watertight. Casing shall extend continuously to a depth of not less than twenty-five feet, unless the only aquifer yielding water adequate for the needs of the person who intends to use the well is at a lesser depth, in which instance the casing need only extend into such aquifer, but in no instance shall casing extend less than fifteen feet in depth.

 

(C)  If nonpotable water is encountered

 

(1)     Above an aquifer containing potable water, the casing shall extend to the bottom of the aquifer containing the nonpotable water, or as deep as necessary to prevent the nonpotable water from entering the aquifer containing potable water and to comply with the requirements of paragraph

(B) above.

 

(2)   Below an aquifer containing potable water, the lower portion of the new well shall be filled with grout to a height sufficient to prevent entrance of nonpotable water into the aquifer containing potable water.

 

(D)   All annular spaces shall be completely filled with grout from the ground surface to the top of the aquifer from which water is to be extracted. All annular spaces shall be sufficiently large that the requirements of the preceding sentence can be complied with.

 

(E)    In the process of driving casing for a new well, or for a test hole which may be converted into a well, a drive shoe or a well point shall be used. If a well is being developed in rock formations, and if casing is being driven, the casing shall be firmly seated and sealed in the rock by means of the drive shoe.

 

(F)   If any device containing openings, including but not limited to a strainer or perforated pipe, is used for the purpose of allowing water to enter the well, such openings shall

 

 

 

not extend higher than twenty-five feet below the ground surface, unless water is to be obtained from an aquifer at a lesser depth, and in no instance shall such openings extend higher than fifteen feet below the ground surface.

(G)    If a wall is constructed, it shall extend to the aquifer from which water is to be extracted, or to a depth of fifteen feet, whichever is greater. The annular space shall be completely filled with grout from the ground surface to a depth sufficient to prevent entrance of surface water into any aquifer, and in no case shall the grout extend less than fifteen feet in depth. The annular space shall be sufficiently large that the requirements of the preceding sentence can be complied with.

(H)    If the Director determines that any well, any part of a well, or any appurtenance thereto is being constructed in such a fashion that contaminants may enter ground water, the Director may issue an order to have such additional work performed on the well, including filling the well as described in 3745-9-10(B) and (C), as he deems necessary to insure that contaminants do not enter ground water.

Replaces:                                 EP-7-05

Effective:                                05/01/2003 R.C. 119.032 review dates:                           03/22/2002

CERTIFIED ELECTRONICALLY

Certification

02/25/2003

Date

Promulgated Under:   119.03

Statutory Authority:   6111.42

Rule Amplifies:           6111.42

Prior Effective Dates: February 15, 1975