Mining, quarrying, dredging or excavation of dirt, gravel, sand or stone, for the purpose of removing, screening, crushing, washing or storage of ore, clay, stone, gravel or similar materials, subject to the following requirements:
(a) Provision of a site plan of all existing conditions, including topography at five-foot intervals, streams, lakes and other bodies of water, roadways, utility lines, structures and major vegetation, including canopy cover;
(b) Identification of any known protected species of plant, fish or animal life, or the presence of areas of historic, cultural or archeological significance. Such property that is found to be protected or of significant public interest shall not be included in any area approved for mining;
(c) Delineation of all permits and licenses (including NPDES and Texas air control board) required for the operation of such a facility, name of contact person, agency address and telephone number of all permitting agencies and verification of approval of same prior to operation;
(d) Submission of a plan of operation, including scheduling of activities, phasing, traffic generation, employees and use of explosives or other hazardous or caustic materials or chemicals;
(e) Analysis of potential impacts to adjacent properties (especially residential) due to dust, noise, water runoff and diversion, ground water alteration, silting, sedimentation, erosion, traffic and mitigation measures to control such impacts. Submittal of drainage study if deemed necessary by the department of transportation and public works. When deemed appropriate, as a mitigation measure of the site perimeter, city council may require appropriate buffering, berming, screening and landscaping greater than that required under this zoning ordinance, which shall be maintained in a proper manner at the expense of the property owner. All mitigation measures must be installed and completed prior to any physical mining of the site;
(f) Submission of plan for protection of adjacent rights-of-way and streets if mining operations are planned within 50 feet of such rights-of-way and streets, and approval of plans required from the transportation and public works director;
(g) Approvals from all utility service providers, transmission, electric and pipeline companies for work around, near or across such utility facility, including approvals for relocation of such utility facility if required;
(h) Site plan identifying all proposed structures, operating facilities, loading and wash areas, roadways, stream or water course diversions, holding ponds/tanks, temporary power lines and other site improvements;
(i) A reclamation plan, including final topography contours, at five-foot intervals, relocated stream beds, lakes, ponds and other physical features, type and depth of surface material, seeding and replanting plan for restoration of the original canopy cover of the site, including any required cross-section and engineering/construction plans as approved by the city forester or a soil conservation scientist. It is recommended that plant materials native to the site be used;
(j) Submission of a performance bond or cash payment for each phase as required under the standard contract for community facilities agreement of the city to ensure that all restoration costs in accordance with the reclamation plan of the site are met;
(k) Provision of a clearly visible sign at the entrance to the mining operation identifying the name, business address and phone number of the facility owner and operator in compliance with the requirements for on-premises signs; and
(l) City council may appoint an oversight committee of city staff, public representatives and others, as required, to provide assurance of compliance with all federal, state and city regulations, codes and ordinances. The operator and/or owner of a mining operation shall provide in writing for the limited access to the property by said members subject to all safety and operational restrictions required by law to protect on-site public welfare and safety. Such access approval shall be a prerequisite and part of the conditions of approval of the use.
(Ord. 23609-03-2019, § 8, passed 3-19-2019)