If water closets or other plumbing fixtures exist in buildings where there is no sewer within reasonable distance, suitable provision shall be made for the disposing of the house sewage by some method of sewage treatment and disposal satisfactory to the health authority having jurisdiction.
Del. Code tit. 16, § 7927
Private sewage treatment and disposal system
47 Del
Official source: Delaware Code Online. Reproduced from public-domain Delaware statutes; confirm against the official source for the current text. Not legal advice.