The intent of the Extractive Manufacturing District is to provide for mining and related industries, all of which rely on the extraction of natural resources. Provisions and performance standards are provided to protect surrounding uses from adverse impacts. It is also the intent of this Part 608 to avoid the encroachment of incompatible uses on the borders of the EM District.
The following uses shall be allowed:
Surface or subsurface mining of rock, metal and nonmetallic ores.
Oil and natural gas extraction and/or pumping, including storage of production produced on the site. No refining is allowed.
Sand and gravel mining and processing.
Crushed stone operations.
Manufacture and processing of cement, lime and gypsum.
Asphalt and concrete mixing plants.
Brick, block and precast concrete products.
Farming, agriculture, orchards, nurseries, horticulture, dairying and forestry.
Public utilities, including poles, lines, distribution transformers, pipes, meters and sewer facilities.
Signs allowed in § 165-201.06B.
Freestanding building entrance signs.
All uses shall conform to applicable state or federal regulations governing noise and vibration. The Zoning Administrator may require the submission of a copy of data submitted to state or federal agencies pertaining to these performance standards with the required site plan.
Appropriate landscaping or screening may be required by the Board of Supervisors within any required yard setback area in order to reasonably protect adjacent uses from noise, sight, dust or other adverse impacts.
All principle and accessory structures shall be set back 75 feet from any road, street or highway right-of-way.
Excavations shall be no closer than 100 feet from any road, street or highway right-of-way. The Board of Supervisors may reduce the required front setback for excavation to 50 feet if it determines that, through the use of measures, such as landscaping or screening, the effective protection afforded to adjacent properties has not been reduced.
Side and rear setbacks. All principal and accessory structures shall be set back at least 25 feet from any side or rear property boundary.
No structure shall be closer than 100 feet from any property line zoned RA, RP, R4, R5 or MH1. The Board of Supervisors may reduce this required setback to 50 feet if it determines that, through the use of measures, such as landscaping or screening, the effective protection afforded to adjacent properties has not been reduced.
Excavations shall be no closer than 100 feet from any property zoned RA, RP, R4, R5 or MH1. No excavation shall be located closer than 200 feet from any dwelling or platted residential subdivision.
All crushing or screening machinery shall be set back at least 300 feet from any property boundary. If such equipment is fully enclosed within a building which maintains the effective protection afforded adjacent properties, the Board of Supervisors may reduce this yard requirement to a minimum of 200 feet.
The maximum structure height shall be 45 feet. The Board of Supervisors may waive the forty-five-foot height limitation, provided that it will not negatively impact adjacent uses. In order to consider the waiver, the applicant must submit all information and adhere to requirements specified by § 165-204.28. In no case shall any structure exceed 200 feet in height.
All uses in the EM District must conform with all state, federal and local regulations. All mining operators shall submit to the Zoning Administrator a copy of the operations plan required by state agencies with the required site plan.