SDCL § 9-48-20: Minimum distance between sewer connections.

No more than one sewer connection shall be made for each platted lot, or for each forty-four feet of frontage of unplatted ground, in the residence section, and for each twenty-two feet of frontage in the business section of the municipality, except when the abutting owner requests in writing the placing of sewer connections at a less number of feet.