Said board shall determine upon a system of mine drainage for the district, either by gravity, power, or by both combined, and to assess the cost thereof upon the property to be benefited thereby.
Source: L. 11: p. 512, � 15. C.L. � 3337. CSA: C. 110, � 230. CRS 53: � 92-28-15. C.R.S. 1963: � 92-28-15.