Chapter 20.664

AGRICULTURAL, FOREST AND RANGE, AND RESIDENTIAL

LAND USE SPECIFIC STANDARDS

Sections:

20.664.010 Accessory dwelling units.
20.664.020 Accessory structures.
20.664.030 Bed and breakfast.
20.664.040 Clustered development.
20.664.050 Day care center.
20.664.060 Density bonus.
20.664.070 Front and rear yard averaging provisions.
20.664.080 Golf courses and related facilities.
20.664.090 Large group care or group home.

20.664.095 Lot size averaging in the A-19 zoning district.
20.664.100 Manufactured homes and manufactured housing.
20.664.110 Manufactured home park design standards.
20.664.120 Multi-family housing.
20.664.130 Open and subsurface mining.
20.664.140 Recreational vehicles.
20.664.150 Recreational vehicle storage facilities.
20.664.160 Stationary tank storage (above ground).
20.664.170 Telecommunications sites.
20.664.180 Telecommunications facilities.

      20.664.010 Accessory dwelling units.
      A. In agricultural and forest and range zoning districts where an open agricultural use is conducted on the same parcel or on a contiguous parcel under the same ownership as the parcel on which the accessory dwelling is to be placed, the accessory dwelling shall conform to the following standards:
            1.Accessory dwellings which are used to house persons, and their families, significantly employed for open agricultural work on the property may contain up to 1,800 square feet of livable area;
            2. The accessory dwelling unit shall be provided with one off-street parking space in addition to that required for the main dwelling.  No variance or minor exception may be filed to allow parking within the required front or side yard setbacks.
            3. If the accessory dwelling is a manufactured home, the accessory dwelling must be removed when the open agricultural use is terminated for a period of more than 180 days.
      B. In the agricultural or forest and range zoning districts where an open agricultural use is not conducted on the same parcel or on a contiguous parcel under the same ownership as the parcel on which the accessory dwelling is to be placed, the accessory dwelling shall conform to the residential accessory dwelling standards of paragraph C, below.
      C. Residential zoning districts.  Accessory dwelling units within residential zoning districts shall be constructed in compliance with the following standards:
            1. No more than one accessory dwelling unit is permitted on any parcel or lot.
            2. An accessory dwelling unit may only be permitted on a parcel on which there is an owner occupied single-family detached dwelling unit (main unit).
            3. An accessory dwelling unit is not permitted on parcels containing two or more dwelling units.
            4. The parcel upon which the accessory dwelling unit is to be established shall conform to all standards of the land use district in which it is located, except for parcel size and dimensions, and provided the parcel contains a minimum of one-half (0.50) net acres.
            5. The accessory dwelling shall be limited to a maximum of 700 square feet of livable area;
            6. The accessory dwelling unit shall be architecturally compatible with the main dwelling.
            7. The accessory dwelling unit shall be provided with one off-street parking space in addition to that required for the main dwelling.  No variance or minor exception may be filed to allow parking within the required front or side yard setbacks.
            8. The accessory dwelling unit may be metered separately from the main dwelling for gas, electricity, water and sewer services.
            9. Either the principle or the accessory dwelling unit must be occupied by the owner of the parcel.
            10. Where the accessory dwelling unit is proposed on a parcel served by an individual well, the applicant shall submit a letter or other evidence that separate service is approved by the state engineer.
      D. This title shall not validate any existing illegal accessory dwelling unit. (Ord. 801, 1997; Ord. 763, 1996; Ord. 659, 1994; Ord. 641, 1994; Ord. 529, 1991; Ord. 424, 1984; Ord. 167, 1968)   

      20.664.020 Accessory structures.
      A. Accessory structures in residential zoning districts must be compatible with the materials and architecture of the main dwelling of the property. Accessory structures may only be constructed on a lot containing a main dwelling unit.
      B. Accessory structures are subject to the minimum requirements of the zoning district in which it is located. However, accessory structures less than 15 feet in height may be located no closer than five feet from the side and rear property lines within the rear yard, provided that the structures are not closer than ten feet to any other structure, or located closer than the Uniform Building Code allows, whichever is more restrictive. In areas zoned residential, no more than 50 percent of the rear yard area may be covered with accessory structures.
      C.  Arch structures must not exceed 20 feet in overall height.
      D.  Accessory structures used as gate support columns must not exceed 80 square feet of floor area and must not exceed 10 feet in overall height.  Entry gates may exceed the maximum allowable height of the fencing on adjacent fence panels by a maximum of 18 inches.  (Ord. 957, 2001; Ord. 763, 1996; Ord 167, 1968)   

      20.664.030 Bed and breakfast.
      A. Bed and breakfast inns are subject to the following operational requirements:
            1. The facility shall be operated at all times by the resident owner of the home.
            2. The facility must meet the requirements of all other applicable regulatory agencies, including the state division of health.
            3. All lighting must be indirect with filaments shielded from surrounding properties and public streets.
            4. No room may be rented for a period longer than 21 consecutive days at a time.
            5. One sign is allowed with a size no larger than 24 inches by 36 inches.
      B. The hearing body may approve the following accessory uses, however these accessory uses must be specifically included as part of  the special use permit request submitted by the applicant. The hearing body’s approval of these uses are subject to the findings as required with the special use permit:
            1. Special events.
                  a. Weddings and receptions;
                  b. Civic, business, corporate and religious or other retreats;
                  c. Seminars;
                  d. Private catered dinners;
                  e. Small seasonal parties.
                  f. The number of guests permitted at the functions listed above may be limited as part of the special use permit approval.
            2.Operational requirements.
                  a. The hours of operation for events that may have music, such as weddings, must not be earlier than 8:00 am and must end no later than 8:00 pm.
                  b. Music shall be limited to the operational requirements permitted with a Class “C” cabaret license (up to four musicians, non-amplified music only). (Ord. 801, 1997; Ord.763, 1996; Ord. 414, 1983)    

      20.664.040 Clustered development.
      Clustered development occurs when a parcel or contiguous parcels under the same ownership are developed to cluster lots for residential use. The purpose of the clustered development is to provide a mechanism to preserve agricultural lands and open space, locate housing in areas which can readily be served by emergency services, utilities, etc., and to provide the agricultural community an alternative to transfer of development rights or large parcelization.  Clustered housing may be used when it furthers the development purposes of this chapter and meets the following requirements:
      A. The minimum parcel size for clustered lots is two net acres.  Individual parcels are not to exceed five net acres.
      B. Except as provided in paragraph F herein, the number of clustered lots created on the parcel for single-family units cannot exceed the density requirement for the base zoning district for the parcel, plus any density bonuses, as provided herein.
      C. The remainder parcels with density removed are restricted to ranching, farming, recreational, or agricultural open space use as designated, and cannot be developed for any other use. The remainder parcels shall be further restricted by including Douglas County in a deed restriction on the land owned in common by the owners or developer of the clustered parcels, or an open space easement in favor of the county, or a non-profit conservation entity.
      D. Clustered lots shall not be located in a special flood hazard area, but density units from a special flood hazard area may be used for clustered lots outside a special flood hazard area.
      E. Clustered lots can only be located in areas that will support the installation and use of an individual sewage disposal system or connection with an existing sewer system.  Clustered lots are prohibited in any other areas.
      F. An owner that permanently restricts the use of the water rights used to support the requisite agricultural, recreational or open space use on all of the remainder parcels is entitled to one and one-half (1.5) units of density for each unit of density allowed by the zone on which water rights are restricted.  This additional density is allowed only when the water rights appurtenant to the reserved area are permanently restricted to that agricultural, recreational or open space use by way of a covenant running with the land to the county or a non-profit conservation entity and to be enforced by the county or a non-profit conservation entity.
      G. The provisions of this section are applicable through the approval of tentative and final subdivision or parcel maps. (Ord. 763, 1996; Ord. 641, 1994; Ord. 619, 1994; Ord. 612, 1993; Ord. 569, 1992; Ord. 167, 1968)   

      20.664.050 Day care center.
      Day care centers shall be constructed in the following manner:
      A. The facility shall conform to all property development standards of the land use district in which it is located.
      B. Day care facilities with more than 20 children must not be located within 300 feet of another large day care facility.
      C. An outdoor play area of no less than 35 square feet per child, but in no case less than 450 square feet in area shall be provided. The outdoor play area must be located in the rear area. Stationary play equipment must not be located in required side and front yards.
      D. Landscaping shall be provided to reduce noise impacts on surrounding properties. Fencing and walls may also be required.
      E. All on-site parking shall comply with the provisions of chapter 20.692 (Off-Street Parking). Large facilities shall provide on-site vehicle turnaround or separate entrance and exit points, and adequate passenger loading spaces.
      F. All on-site lighting shall be stationary, directed away from adjacent properties and public rights-of-way, and of an intensity appropriate to the use it is serving.
      G. All on-site signs shall comply with the provisions of chapter 20.696.
      H. A facility within a residential land use district may operate up to 14 hours per day.
      I. Outdoor activities may only be conducted between the hours of 8:30 a.m. to 8:00 p.m.
      J. Any facility must, when applicable, be state licensed and must be operated according to all applicable state and local health and safety regulations. (Ord. 763, 1996; Ord. 519, 1990)   

      20.664.060 Density bonus.
      Refer to chapter 20.440 regarding the density bonus provisions of this development code. (Ord. 763, 1996)   

      20.664.070 Front and rear yard averaging provisions.
      A. Front or rear yard setbacks required by the base district in Tables 20.654.010 and 20.656.010 may be averaged on the interior lots within a single-family detached or duplex subdivision.
      B. The front or rear yard setbacks of a group of five adjacent dwelling units may vary up to five feet from that required. The average setback of all five units shall equal the minimum required for the base district. (Ord. 763, 1996; Ord. 196, 1972; Ord. 167, 1968)   

      20.664.080 Golf courses and related facilities.
      Golf course developments shall be constructed in the following manner:
      A. State-of-the-art water conservation techniques must be incorporated into the design and irrigation of the golf course.
      B. Treated effluent may be used for irrigation where available.
      C. All accessory facilities, including but not limited to, club houses, maintenance buildings, and half-way club houses shall be designed and located to ensure compatibility with the golf course setting. (Ord. 763, 1996)   

      20.664.090 Large group care or group home.
      Group housing developments shall be constructed in the following manner:
      A. The parcel upon which the group housing facility is to be established shall conform to all standards of the underlying land use district.
      B. The group housing facility shall conform to and comply with all local, state, and federal requirements.
      C. A group care development may or may not include individual dwelling units.  Any development proposing individual dwelling units shall comply with the following:
            1. Individual dwelling units are not permitted within single-family zoning districts.
            2. Within the MFR zoning district, the number of dwelling units shall be based on Table 20.656.010.  Where located within a designated receiving area, transfer of development rights are required.
            3.Within the OC and MUC zoning districts, individual dwelling units may be permitted subject to the following:
                  a. Density shall not exceed three dwelling units per acre.
                  b. In no event shall more than 25% of the total units (rooms) be dwelling units.
                  c. Where located within a designated receiving area, transfer development rights are required for each dwelling unit.
      D. The main pedestrian entrance to the development, common areas, and the parking facility shall be handicap accessible.
      E. Indoor common areas and living units shall be handicap adaptable and be provided with all necessary safety equipment (e.g., safety bars, etc.), as well as emergency signal or intercom systems as determined by the director.
      F. Adequate internal and external lighting including walkways shall be provided for security purposes. The lighting shall be stationary, deflected away from adjacent properties and public rights-of-way, and of an intensity compatible with the residential neighborhood.
      G. Common recreational and entertainment areas of a size and scale consistent with the number of living units shall be provided. The minimum size shall equal 100 square feet for each living unit.
      H. Each residential unit shall be designed for a washing machine and dryer, or common laundry facilities of sufficient number and accessibility, consistent with the number of living units and the Uniform Building Code shall be provided. Such facilities shall have keyed access for tenants only.
      I. The development may provide specific internal common facilities, including but not limited to one or more of the following for the exclusive use of the residents:
            1. Central cooking and dining room(s).
            2. Beauty and barber shop.
            3. Small scale drug store not exceeding 1,000 square feet.
      J. Off-street parking shall be provided in the following manner:
            1. One and one-quarter (1.25) parking spaces for each living unit.
            2. All off-street parking shall be located within 150 feet of a public entrance.
            3. Adequate and suitably striped paved areas for shuttle parking. Shaded waiting areas shall be provided adjacent to the shuttle stops.
            4. Design standards relating to and including but not limited to handicapped parking, access, surfacing, striping, lighting, landscaping, shading, and dimensional requirements shall be consistent with the standards outlined in chapter 20.692 (Off-Street Parking).
            5. Group care parking requirements may be adjusted on an individual project basis, subject to a parking study based on project location and proximity to services for senior citizens including, but not limited to medical offices, shopping areas, and mass transit.
      K. The project shall be designed to provide adequate security for residents, guests, and employees.
      L. All parts of all structures shall be within 150 feet of paved access for single-story and 50 feet for multi-story.
      M. Notwithstanding section 20.664.090.C, individual kitchen facilities, including “wetbars,” are not permitted. (Ord. 801, 1997 Ord. 763, 1996; Ord. 688, 1995)   


      20.664.095 Lot size averaging in the A-19 zoning district.
      Parcel maps in the A-19 zoning district are eligible for lot size averaging to preserve the integrity of the irrigation water conveyance system, subject to the following:
      A. The net acreage divided by the number of lots must be equal to or greater than 19 acres per lot. The minimum resulting parcel size is 5 net acres.
      B. Variation from minimum lot size is dependent on affirmative findings, on advice from the water conveyance advisory committee:
          1. That the proposed configuration of the resulting parcels is necessary to preserve the integrity of the water conveyance system, from delivery and drainage of water on the resulting parcels.
          2. That because of the unusual shape or topography of the parent parcel and the existing system for irrigating the parcels, division into parcels of a minimum of 19 acres would be detrimental to continued agricultural production or the delivery and drainage of irrigation water.
      C. The location of the boundaries of the resulting parcels will be secured by deed restrictions or equivalent covenants, conditions and restrictions of record, containing the words: The boundaries of this parcel or parcels were established to preserve the integrity of the water conveyance system and may not be adjusted without the approval of the Board of County Commissioners.
      D. Parcel maps which propose lot size averaging under this section will be referred to the planning commission. (Ord. 1129, 2005)


      20.664.100 Manufactured homes and manufactured housing.
      Manufactured or mobile homes allowed under the provisions of this chapter shall be installed in the following manner:
      A. Mobile or manufactured homes may be used as single-family dwellings in an MH overlay zoning district if the home is certified under the National Mobile Home Construction and Safety Standards Act of 1974. (Ord. 763, 1996;  Ord. 167, 1968; Ord. 131, 1963)   

      20.664.110 Manufactured home park design standards.
      Manufactured home parks or subdivisions shall be designed and constructed in the following manner:
      A. Individual manufactured home space minimum setbacks shall be measured from the edge of internal streets and space lines as follows:
            1. Front: Ten feet;
            2. Side: Five feet on each side, or zero lot line on one side with 10 feet on the opposite side;
            3. Rear: Ten feet;
            4. Structural separation: Ten foot minimum between dwelling units.
      B. Maximum manufactured home space coverage (manufactured home and its accessory structure) shall be 75 percent.
      C. Each manufactured home shall be equipped with skirting, or provided with a support pad which is recessed to give the appearance of the manufactured home being located on-grade.
      D. All on-site utilities shall be installed underground.
      E. The manufactured home park shall be provided with parking as required by chapter 20.692 (Off-street Parking).
      F. A common recreation area which may contain a recreation building shall be provided in the park for use by all tenants and their invited guests. The area shall be provided in one common location with a minimum aggregate area of 200 square feet of recreational space for each manufactured home space.
      G. All exterior boundaries of the manufactured home park shall appear similar to conventional residential developments and shall be screened by a decorative wall, fence or other comparable device six feet in height, with a minimum six-foot-wide landscaped area provided along the outside of the perimeter screen.
      H. Common open space shall be landscaped in accordance with a landscape plan approved by the director and in a manner consistent with chapter 20.694 (Landscaping Standards).
      I. All manufactured home park or subdivision developments shall provide recreational amenities within the site which may include but are not limited to swimming pools, spas, a clubhouse, a “tot lot” with play equipment, picnic shelter or barbecue area, court game facilities such as tennis, basketball, or racquetball, improved softball or baseball fields, or day care facilities. The type and number of amenities shall be approved by the board and provided according to the following schedule:

Units

Number of Amenities

0-9

0

10-50

1

51-100

2

101-200

3

201-300

4

One amenity shall be added for each 100 additional units or fraction thereof. (Ord. 763, 1996; Ord. 131, 1963)   

      20.664.120 Multi-family housing.
      Multi-family housing is subject to design review and shall be constructed in the following manner:
      A. All multi-family developments with 12 or more dwelling units shall provide 25 percent of the project site as useable open space for passive and active recreational uses. Useable open space areas shall not include rights-of-way, vehicle parking areas, areas adjacent to or between any structures less than 15 feet apart, setbacks, patios or private yards, or slope areas greater than 8 percent.
      B. Each dwelling unit shall have a private, walled patio or balcony in accordance with the following:
            1. Ground floor units shall have a patio or balcony not less than 150 square feet in area or 25 percent of the dwelling unit size, whichever is less.
            2. All other units shall have a patio or balcony not less than 75 square feet in area.
      C. All multi-family developments shall provide recreational amenities within the site which may include a swimming pool, spa, club house, tot lot with play equipment, picnic shelter or barbecue area, court game facilities such as tennis, basketball, or racquetball, improved softball or baseball fields, or, day care facilities. The type and number of amenities shall be approved by the director and provided according to the following schedule:

Units

Number of Amenities

0-11

0

12-50

1

51-100

2

101-200

3

201-300

4

One amenity shall be added for each 100 additional units or fraction thereof.
      D. Off-street parking spaces for multi-family residential developments shall be located within 150 feet from the dwelling unit (front or rear door) for which the parking space is provided.
      E. Each dwelling unit shall be provided a minimum of 150 cubic feet of private enclosed storage space within the garage, carport, or immediately adjacent to the dwelling unit.
      F. Driveway approaches within multiple family developments of 12 or more units shall be delineated with interlocking pavers, rough-textured concrete, or stamped concrete and landscaped medians.
      G. All parts of all structures shall be within 150 feet of paved access for single story and 50 feet for multi-story.
      H. Common laundry facilities of sufficient number and accessibility consistent with the number of living units and the Uniform Building Code shall be provided.
      I. Where common laundry facilities are not provided, each dwelling unit shall be designed for a washing machine and dryer. (Ord. 801, 1997;  Ord. 763, 1996; Ord. 347, 1980; Ord. 203, 1973; Ord. 167, 1968)    

      20.664.130 Open and subsurface mining.
      A.Applicability requirements.
            1. Requirements for special use permits. Unless exempted by provisions of this chapter, an approved special use permit as provided in chapter 20.604 shall be required for all surface mining operations in all zoning districts in which surface mining is allowed, and shall be required for the expansion or substantial change of operation of any surface mine for which such expansion or changes have not been thereby approved, including any operation which meets the definition of a “non-conforming use” pursuant to chapter 20.698.
            2. Requirements for reclamation plans. A reclamation plan shall be required for all surface mining operations where permitted.
            3. Exemptions.  A reclamation plan shall not be required for any of the following activities:
                  a. Excavations or grading conducted for farming or on-site construction or for the purpose of restoring land following a flood or natural disaster;
                  b. Prospecting for, or the extraction of, minerals for non-commercial purposes in total amounts of less than 500 cubic yards in any one location of one acre or less;
                  c. Surface mining operations that are required by federal law in order to protect a mining claim, if such operations are conducted solely for that purpose;
                  d. Emergency excavations or grading by the county or its agent for flood control purposes;
                  e. Any other surface mining operations which the director determines to be of an infrequent nature and which involve only minor surface disturbances.
      B. Applications for special use permits for surface mining operations and reclamation plans.
            1. In addition to the special use permit application required in chapter 20.604, all applications for a special use permit for surface mining operations shall contain the surface mining and reclamation application supplement required by the planning division.
            2. As many copies of a reclamation plan application as may be required shall be submitted in conjunction with all applications for special use permits for surface mining operations. For surface mining operations that are exempt from a special use permit pursuant to this chapter, the reclamation plan application shall include information concerning the mining operation that is required for processing the reclamation plan.
            3. Applications shall include the necessary environmental review information prescribed by the planning division.
      C. Performance standards for reclamation plans.
            1. All new or revised reclamation plans shall address the environmental impacts of the project, including but not limited to wildlife habitat, backfilling, re-grading, slope stability, re-contouring, erosion control, re-vegetation, drainage, agricultural land reclamation, equipment removal, stream protection, topsoil salvage, tailing and mine waste management and maintenance.
            2. Douglas County may impose additional performance standards developed either in review of individual projects, as warranted, or through the formulation and adoption of county-wide performance standards on any new reclamation plan or modification to a previously approved reclamation plan.
      D. Phasing of reclamation.
            1. Phasing of reclamation.  Reclamation activities shall be phased with respect to the phasing of the mining operation and shall be initiated at the earliest possible time on those portions of the mined lands that will not be subject to further disturbance.
            2. Interim reclamation may also be required for mined lands that have been disturbed and will be disturbed again in future operations if it is determined to be necessary to ensure the success of final reclamation or for health and safety purposes. Reclamation may be done on an annual basis, or in stages compatible with continuing operations, or on completion of all excavation, removal, or fill as approved by the county. Each phase of reclamation shall be specifically described in the reclamation plan and shall include: the approximate length of time for completion of each phase; all reclamation activities required; criteria for measuring completion of specific reclamation activities; and estimated costs as provided in subsection 20.664.130.F (Financial assurances for reclamation plans). The county  shall approve the reclamation schedule.
            3. Annual reports. Surface mining operators shall submit annually a status report to the planning division on the anniversary date of the special use permit.
            4. A copy of the final approved reclamation plan shall be kept on-site at all times.
      E. Findings for approval.
In addition to the findings for approval special use permits contained in chapter 20.604, approval for surface mining operations shall include a finding that the project complies with the provisions of federal and state law.
            1. For reclamation plans, the following findings shall be made by the board prior to approval:
                  a. That the reclamation plan and potential use of reclaimed land pursuant to the plan are consistent with this chapter and the county’s master plan;
                  b. That through implementation of the reclamation plan, all significant adverse impacts on lands to be reclaimed as a result of the surface mining operations are mitigated to the maximum extent feasible;
                  c. That the land or resources to be reclaimed will be restored to a condition that is compatible with the surrounding environment;
                  d. That the reclamation plan and potential use of reclaimed land pursuant to the plan are consistent with any applicable air quality or water quality resource plan or that suitable off-site development will compensate for related disturbances to resource values existing after reclamation is completed;
                  e. The reclamation plan will restore the mined lands to a usable condition which is adaptable for alternative land uses consistent with the master plan and any other applicable plan or element.
      F. Financial assurances for reclamation plans.
            1. In order to ensure that reclamation will proceed in accordance with the approved reclamation plan, the county shall require as a condition of approval one or more forms of security which will be released upon satisfactory performance. The applicant shall post security in the form of a surety bond, irrevocable letter of credit from an accredited financial institution, a certificate of time deposit as part of an approved trust fund, or other method acceptable to the county. Financial assurances shall be made payable to Douglas County.
            2. Financial assurances shall be required to ensure compliance with elements of the reclamation plan including but not limited to re-vegetation and landscaping requirements; restoration of wildlife habitat; protection of archaeological sites; restoration of water bodies and water quality; slope stability and erosion and drainage control, disposal of hazardous materials; and other mitigation measures. Financial assurances for such elements of the reclamation plan shall be monitored by the planning division.
            3. Financial assurances shall not be released until the reclamation has been completed in accordance with the approved reclamation plan to the satisfaction of the director.
            4. The amount of financial assurances shall be based upon the estimated costs of reclamation for each year in the reclamation plan, including any irrigation and maintenance of reclaimed areas as may be required. Cost estimates shall be prepared by a licensed engineer or other qualified professionals retained by the operator; the estimates shall be approved by the county engineer. Financial assurances may be based upon estimates including but not necessarily limited to the volume of earth moved (cubic yards) for each year or phase of reclamation. Financial assurances to ensure compliance with re-vegetation, restoration of wildlife habitat, and any other applicable element of the reclamation plan shall be based upon cost estimates that include but may not be limited to labor, equipment, materials, mobilization of equipment, administration, and reasonable profit by a commercial operator other than the permittee.
            5. In projecting the costs of financial assurances, it shall be assumed without prejudice or insinuation that the surface mining operation could be abandoned by an operator and, consequently, the county or state may need to contract with a third-party commercial company for mobilization and reclamation of the site.
            6. Where reclamation is accomplished in annual increments, the amount of financial assurances required for any one year shall be adjusted annually and shall be adequate to cover the full estimated costs for reclamation of any land projected to be in a disturbed condition from mining operations by the end of the following year. The estimated costs shall be the amount required to complete the reclamation on all areas that will not be subject to further disturbance, and to provide interim reclamation, as necessary, for any partially excavated areas in accordance with the reclamation plan. Financial assurances for each year shall be released upon successful completion of reclamation (including any maintenance required) of all areas that will not be subject to further disturbance and upon the operator filing additional financial assurances for the succeeding year. Financial assurances for all subsequent years of the operation shall be handled in the same manner.
            7. Financial assurances for reclamation that is accomplished in multiple-year phases shall be handled in the same manner as described for annual reclamation.
            8. If a change of ownership occurs, the existing financial assurance remains in force until a replacement financial assurance is approved by the lead agency.
      G. Inspections.
            1.The department shall arrange for inspection of a surface mining operation within six months of receipt of the annual report required in subsection D.3, above, to determine whether the surface mining operation is in compliance with the reclamation plan.
            2. In no event shall less than one inspection be conducted in any calendar year. The inspections may be made by a state-registered geologist, state-registered civil engineer, state-licensed landscape architect, state-registered forester, or other qualified specialist who has not been employed by the mining operation in any capacity during the previous 12 months, as selected by the director. The director shall, within 30 days of completion of the inspection, notify the mining operator that the inspection has been conducted and shall forward a copy of the inspection notice and any supporting documentation to the mining operator. The operator shall be solely responsible for the reasonable cost of such inspection.
      H. Time limit for commencement of a special use permit for surface mining operations.
The conditions of approval of the special use permit shall include time limits for commencement of operations and continuance thereof, in the absence of which, the permit will lapse.
      I. Modifications to reclamation plan.
Requests for modifications of approved reclamation plans shall be processed in the same manner as original applications for reclamation plan reviews unless they are determined to be minor modifications. Applications for minor modifications may be submitted in connection with the following, as long as it is not incompatible with existing conditions or plans:
            1. To allow the minor re-contouring of final topography, providing slope stability is maintained and substantiated; effecting no more than 10 percent of the site;
            2. To allow minor modification or addition of site access;
            3. To allow a minor substitution in the reclamation plan, provided it does not substantially alter the intended end use described in the approved reclamation plan;
            4. To allow minor technological or administrative changes in methods used to achieve reclamation;
            5. To allow measures to be taken which will ensure or maintain public safety (e.g. fences, gates, signs, or hazard removal) provided it does not substantially alter the intended end use described in the approved reclamation plan;
            6. To allow minor modifications to a previously approved phasing plan.
      J. Violations and penalties.
If the director, based upon an annual inspection or otherwise confirmed by an inspection of the mining operation, determines that a surface mining operation is not in compliance with this section, the applicable permit or the reclamation plan, the county shall initiate revocation procedures of the special use permit.
      K. Section fees.
The county shall establish fees as it deems necessary to cover the reasonable costs incurred in implementing this section, including but not limited to processing of applications, annual reports, inspections, monitoring, enforcement and compliance.
      L. Special development and performance standards.
            1. Required signage. The outer boundaries of all property used for quarrying operations, involving the extraction and processing of rock, sand, gravel, decomposed granite, clay or similar materials shall be posted with signs carrying the message “QUARRY ZONE” in letters not less than four inches in height, and in letters not less than one inch in height, the message “This property may be used for the extraction and processing of rock, sand, gravel, decomposed granite, clay and similar materials, by Douglas County Code.”
                  a. These signs shall be posted not more than 500 feet apart, with signs placed at each change in direction of the boundary lines of the property and displayed in such manner as to give reasonable notice to passers-by of the message contained thereon.
            2. All mining and quarrying operations, rock crushing plants and aggregate dryers shall be established and operated in accordance with the following standards:
                  a. All equipment and premises employed in conjunction with any of the uses permitted shall, insofar as is practicable and feasible, be constructed, operated and maintained so as to suppress noise and vibration which are or may be injurious or annoying to persons living in the vicinity.
                  b. All private roads shall be kept wetted while being used or shall be treated with an approved dust palliative or hard-surfaced and maintained so as to prevent the emanation of dust.
                  c. All private access roads leading off any public street or highway onto property used for any purpose permitted in this zone shall be paved, with asphalt or concrete surfacing not less than three inches in thickness, for the first 50 feet of the access road.
                  d. No excavation or production from an open pit quarry shall be permitted which creates a slope steeper than one foot horizontally to one foot vertically.
                  e. No excavation or production shall be permitted nearer than 50 feet from the project boundary.
                  f. No production shall be permitted nearer than 50 feet to any lot line of adjoining property unless the written consent of the owner in fee of the property is first secured and recorded in the county recorder’s office.
                  g. Prior to the start of any quarry operations, the outer boundaries of the entire property shall be continuously enclosed by a six-foot-high fence. Where adjacent to a public street or residentially zoned area, required fencing shall be a view obstructing fence, wall or landscaped berm. Elsewhere, the fence may be constructed of chain link, provided however that the reviewing authority may, without notice or hearing, grant a modification to the provisions of this subsection where:
                        i. The property is located in the bed or flood channel of a wash or water course and fencing would be impractical; or
                        ii. Topographic features; location factors or other conditions create an unnecessary hardship or unreasonable situation making it impractical to require compliance with the fencing requirements contained in this subsection.
                  h. All uses permitted which are not conducted within an enclosed building shall confine all operations on the property to the hours between 7:00 a.m. and 10:00 p.m., Monday through Saturday, except in cases of public emergency, or such reasonable or necessary equipment or building repairs as are required to be made.
                  i. Before commencing operation in any quarry the owner or operator shall secure insurance, to the extent of one million dollars ($1,000,000), against liability in tort arising from the production, activities or operations incident thereto conducted or carried on under or by virtue of any law or ordinance, and such insurance shall be kept in full force and effect during the period of such operations. (Ord. 763, 1996; Ord. 167, 1968)   

      20.664.140 Recreational vehicles.
      No trailer or recreational vehicle shall be used for living or sleeping purposes in any area within the unincorporated area of the county except as follows:
      A. A recreational vehicle or travel trailer may be occupied as a use pending construction of a permanent single-family residence in any agricultural, forest and range or residential district, provided that the owner of the lot or parcel obtains a temporary use permit and occupies the recreational vehicle or travel trailer only for the period of construction, not to exceed 12 months. The temporary use permit must be issued concurrently with the building permit for the permanent residence. On expiration of the permit, or within 30 days from the date of issuance of the certificate of occupancy for the residence, any recreational vehicle or travel trailer must be removed or located on the site in accordance with chapter 20.692;
      B. Existing trailer parks and campgrounds conducted, maintained and licensed under the terms of this chapter;
      C. The temporary use of non-paying guests or relatives of the person residing on the lot or parcel which has a main residence may occupy a travel trailer or recreational vehicle for sleeping purposes for a period not to exceed seven consecutive days. The use must not exceed a total of 14 days for a calendar year. A travel trailer or recreational vehicle used for such a purpose must not discharge any litter, sewage, effluent or other matter except into sanitary facilities designed to dispose of the material.
      D. Storage of travel trailers or recreational vehicles shall be in accordance with section 20.660.150(C)(4) (d). (Ord. 801, 1997; Ord. 763, 1996; Ord. 633, 1994; Ord. 131, 1963)   

      20.664.150 Recreational vehicle storage facilities.
      Developments within the multi-family land use districts and with 12 or more dwelling units, or single-family subdivisions in excess of 30 units containing parcels less than 8,000 square feet in size shall provide recreational vehicle storage facilities. The storage facilities shall be reviewed as part of the design review and shall be constructed in the following manner:
      A. Centralized storage areas shall be provided for recreational vehicles, as defined in Appendix A and 20.660.150.C.4.d, at a minimum of one space for each eight dwelling units.
      B. Individual storage spaces shall measure not less than 12 feet by 30 feet, and shall have direct access to a driveway with a minimum paved width of 25 feet. (Ord. 763, 1996)   

      20.664.160 Stationary tank storage (above ground).
      A. Definitions.
            1. Storage vault means above ground flammable or combustible liquid storage vaults that are concrete enclosures located outside a building containing a tank and a pump assembly.
            2. Storage tanks means above ground combustible liquid tanks are double wall steel tanks on supports or pads located outside a building.  Storage tanks lack fire resistance ratings from exposure fires.  Above ground storage tanks are limited to class II and III liquids only.
      B. General requirements.
            1. Storage vault and tank installations shall be limited to a maximum 1050 gallons individual tank capacity and 3150 aggregate at any one site.
            2. Storage vaults and tanks shall be used only for private vehicle fleet, non retail installations, government fleet installations, private company equipment yards, waste oil storage, emergency generator pumps and other similar uses where the fire chief or fire marshal determines there is no increased threat to fire safety.
            3. The fire chief or fire marshal may prohibit the use of a storage vault or tank installation when, in his opinion there is a hazard to fire of life safety from a given installation.
            4. Storage vault and tanks shall not be manifolded together.
            5. A building permit shall be obtained from the community development department and local fire department prior to the installation of tanks.  Plans shall be submitted along with the request for a permit.
            6. The location of tanks shall comply with the setback requirements of the applicable zoning district.  Clearance to property lines, structures, unprotected openings and public ways shall be shown when applying for permits.
            7. Grade shall slope from the tank and dispensing areas away from any structure.
            8. Storage value and tank installations shall be fenced or secured to prohibit the public from having access to the installation.
            9. Storage vaults and tanks shall be considered a group M, Division 2 occupancy under the Uniform Building Code.
            10. Existing above ground single wall tanks containing flammable or combustible liquids shall meet all requirements outlined in the Uniform Fire Code, Article 79, Division V.  All existing tanks shall be protected with two hour fire resistive construction.
            11. All new installations shall be double wall tanks with two hour fire protection added or preferably a storage vault.
      C. Tank design.
            1. The storage vault and tank assembly shall be engineered in accordance with nationally recognized standards to insure that normal transportation, installation and operation of the tank will not result in damage to the tank or tank envelope which may lead to leakage of the tank contents.
            2. Only tanks with UL or other nationally recognized testing laboratories listing shall be used and labeled accordingly.  Each tank shall be compatible with the product being used.
            3. All storage vault tanks shall be attached to the concrete vault by an approved engineered means.
            4. Tank venting shall comply with section 79.509 of the Uniform Fire Code:
                  a. Minimum vent size shall be 1¼ inside diameter;
                  b. Vent piping shall terminate a minimum of twelve feet above the ground;
                  c. Vents shall discharge only in an upward or horizontal direction;
                  d. Vent lines shall not terminate within five feet of any building openings nor within five feet of a property line that may be built upon;
                  e. Vent pipes shall be arranged so that flammable vapors will not enter any building openings, be trapped under eaves or other obstructions or discharge into hazardous locations.
The vent supplied with the storage vault may only be used if engineering data is shown to prove the vent is adequate for either the filing or withdrawal rate, whichever is greater, and that the vent pipe length is adequate and the vent location complies with the above.
            5. The storage tanks and the tanks within the storage vault shall be grounded with a ground rod bonded to a metallic pipe coming from the tank with a flexible copper wire of adequate strength for the intended service and electrical resistance.
            6. All piping shall be provided with swing joints where the pipe attaches to any building.  Listed flexible connections may be used in lieu of the swing joints when approved by the chief or fire marshal.
            7. Tank openings for filling and gauging purposes must be covered by vapor tight caps or lids and must be secured against tampering at all times except during filling or gauging operations.  Fill pipes must terminate within six inches of the bottom of the tank.
            8. All vault interstitial spaces shall be monitored for leakage in accordance with N.D.E.P.
            9. Vault enclosures shall be liquid and vapor tight without backfill.  The sides and bottom of the enclosure shall be of reinforced concrete and listed for a two hour fire exposure with openings for inspection through the top only.  Tank connections shall be so piped or closed that neither vapors or liquid can escape into the enclosed space.  A means shall be provided whereby portable equipment may be employed to discharge to the outside any vapors which might accumulate should any leakage occur.
            10. Storage vault and tank assemblies shall provide overfill containment protection which will contain a minimum of five gallons of spillage.  Such containment shall be around the fill pipes.  Provisions for preventing rain water or snow melt from entering the overfill containment area shall be made.
            11. Each storage vault or tank shall rest on concrete supports meeting nationally recognized approved engineered standards to support the weight of the tank, vault or outer shall and its contents.  When designing the supports, visual inspection of the underside of vault is required.
            12. The storage vault and tank system shall rest on an engineered concrete pad.  Restraining from flotation shall be provided in areas prone to flooding.  Refer to Uniform Building code, Chapter 23 for requirements.
            13. Storage vaults and tanks must be clearly marked with their produce name and the words “FLAMMABLE (OR COMBUSTIBLE) KEEP FIRE AWAY.”  The dispensing and filling area shall be posted as “NO SMOKING” area for at least 25 feet in all directions.  Dispensing areas must be posted with “NO SMOKING OR OPEN FLAMES ALLOWED, STOP ENGINES WHILE REFUELING.”  Letters for signs must be a minimum of two inches in height and ½ inch stroke on a background of contrasting color.
            14. Storage vaults, tanks and dispensing units shall be protected from physical damage by the installation of six-inch concrete filled bollards located at least 12 inches from the vault or tank and spaced a maximum of four feet apart on all sides of the vault or tank subject to such damage.  A concrete “jersey barrier” may be used in lieu of the bollards.
            15. A concrete pad shall be provided under vehicles being refueled where required by local jurisdiction.
            16. The area around the storage vault or tank shall be maintained free from weeds and brush at all times for at least ten feet in all directions.  No other storage is permitted in the area or under the storage vault or tank.
            17. The storage vault or tank and the dispensing units shall be secured to prevent tampering when not in use.
      D. Pumps and dispensing units.
            1. All pumps and dispensing units used in conjunction with the installation shall be tested and listed by a nationally recognized testing laboratory for use with the product being stored in the vault or tank assembly.
            2. All electrical wiring shall comply with the National Electrical Code.
            3. The pump shall take its suction from the top of the vaulted tank or the storage tank.
            4. Remote pumping stations are prohibited.
            5. Emergency pump shut off switches shall be provided within 75 feet but not closer than 15 feet from all dispensers.  The switches shall not be located inside any building.  A sign shall be posted “EMERGENCY PUMP SHUTOFF” at the shutoff switch.  The sign shall be legible for a distance of 75 feet.
            6. A portable fire extinguisher with a minimum 2A-20BC classification shall be located in an accessible location not more than 30 feet from the dispensing unit.
            7. For refueling operations conducted between 30 minutes after sunset and 30 minutes before sunrise, adequate lighting is required to be permanently mounted in the area of the refueling operations.
      E. Waste oil tanks.
            1. Where the product stored in the storage vault or tank assembly is pumped in or poured in, such as waste oil tanks, ball check valves at the fill and at the withdrawal lines shall be provided.
            2. Waste oil lines shall not be under pressure inside any building.
            3. Storage vault or tank assemblies containing waste oil shall be provided with a reliable level indicator.
      F. Container filling.
            1. Class I flammable liquids shall not be dispensed into containers unless the nozzle and the container are electrically bonded.
            2. Product may be dispensed into approved containers only.  Class I liquids shall not be dispensed into glass or plastic containers at any time.
      G. Training.
            1. Every facility with a storage vault shall provide training to employees to include but not be limited to:
                  a. Use and care of the vault;
                  b. Procedures in the event of a spill or leak;
                  c. Training in the use of portable fire extinguishers;
                  d. Initial training to all employees;
                  e. Annual training to all employees.
            2. Training records shall be retained for inspection by the fire department. (Ord. 801, 1997; Ord. 763, 1996; Ord. 671, 1994; Ord. 641, 1994; Ord. 167, 1968)   

      20.664.170 Telecommunications sites.
      The following standards apply to all telecommunication sites as defined in this title:
      A. The height of wireless communications facilities includes all antenna array structures.
      B. Antenna support structures, where utilized, must be monopole type.
      C. The wireless communications facility shall be located on the existing structure so as to minimize visual impacts from surrounding properties and rights-of-way.
      D. All antennas and support structures must be painted to be architecturally compatible with the building on which it is located or painted to minimize visual impacts where the structures extend above the roof line.
      E. Roof-mounted antenna support structures shall be located no closer to the nearest edge of the roof than the height of the structure with all antennas and other equipment attached.
      F. Accessory equipment and equipment structures must be screened or designed according to the provisions of this title and the adopted Douglas County design manual.
      G. Telecommunications sites are prohibited on residential structures and accessory residential structures. 
      H. The following additional standards apply within residential zoning districts:
            1. Telecommunications antennas may only be located on alternative tower structures
            2. Accessory equipment structures are limited in size to 120 square feet.
      I. Telecommunication sites, as defined is section 20.660.130.H, are subject to minor design review. 
      J. Exemptions.  The following facilities are exempt from county review:
            1. Antennas not exceeding four feet high and 580 square inches in area as viewed from any one point, or tubular antennas not more than four inches in diameter and 15 feet in height when placed on an existing non-residential structure.
            2. Antennas that are fully enclosed inside an existing structure.
            3. Usual and incidental repair and maintenance of existing telecommunications sites.  (Ord. 871, 1999)   

      20.664.180 Telecommunications facilities.
      The following standards apply to all telecommunications facilities as defined in this title:
      A. Maximum heights.  The height of telecommunications facilities includes all antenna array structures.  The following are the maximum facility heights permitted within the applicable zoning districts:
            1. NC, MUC, OC, GC, TC, PR and AP:  60 feet.
            2. PF, LI, and SI:  80 feet.
            3. GI and A-19:  100 feet.
            4. FR-19 and FR-40: 120 feet.
            5. Residential zoning districts:  Prohibited.
      B. Setbacks.              1. Telecommunications facilities and accessory structures that do not exceed the maximum required height of the applicable zoning district must meet the required building setbacks for the zoning district in which the facility is located.
            2. Facilities exceeding the height requirement of the zoning district in which the facility is located shall have the following minimum setbacks:
                  a. A minimum of 20% of the structure height or the minimum required setback of the applicable zoning district, whichever is greater, from all property lines.
                  b. A minimum of five-times the structure height from any residentially zoned property, master plan designated receiving area, and any existing residence on surrounding properties located within the A-19 or FR-19 zoning districts.
                  c. A minimum of 2,500 feet from major highway and road corridor rights-of-way, including US 395, SR 88, SR 208, SR 207, US 50, Foothill Road and Jacks Valley Road, excluding facilities to be located within the town boundaries of Minden or Gardnerville.
                  d. A minimum separation of one mile between all telecommunications facilities, measured from the nearest point of each structure, including facilities with a valid approval that have not yet been constructed.
            3. Telecommunications facilities shall not be located within the front-yard area when there is an existing building on the parcel.
      C. Design criteria.             1. Support structures for wireless communications antennas shall be monopole type.  The use of lattice tower structures or guyed-wire towers is prohibited.
            2. Monopole support structures may not exceed four feet in diameter unless technical evidence is provided showing that a larger diameter is necessary to attain the proposed tower height and that the proposed tower height is necessary.
            3. Wireless communications facility support structures and antennas must be painted a non-glossy color so as to minimize visual impacts from surrounding properties.  Specific color is subject to county review based on a visual analysis of the particular site.
            4. Accessory structures must be designed and screened according the provisions of the adopted Douglas County design manual.
            5.Support structures for wireless communications antennas shall be designed to allow at least one additional wireless service provider to co-locate antennas on the structure.
            6. Towers shall not be artificially lighted unless required by the FAA or other applicable authority.  Security lighting must be in conformance with this title and the adopted design manual.
      D. Access.             1. Unmanned telecommunications facilities must have a minimum 12 foot access easement to the facility. 
            2.When access is from a paved public street or alley, a paved driveway approach shall be constructed a minimum ten feet in length and 12 feet in width at the point of access.
      E. Signage.  A permanent, weather-proof identification sign, approximately 16 inches by 32 inches in size, must be placed on the gate of the fence around the facility or, if there is no fence, on the facility itself.  The sign must identify the facility operator(s), provide the operator’s address, and specify a 24-hour telephone number at which the operator can be reached so as to facilitate emergency services.
      F. Landscaping.               1. Landscaping is to be provided in accordance with section 20.694 (Landscaping) for the purposes of screening the facility from surrounding properties or rights-of-way.
            2. Landscaping must include re-vegetation of any cut or fill slopes.  Where native vegetation exists, re-vegetation should include native plant species that can exist without irrigation.
            3. Where possible, existing plants and trees should be used to the full extent possible for screening the facility.
      G. Noise and traffic.
            1. Backup generators shall only be operated during power outages and for testing and maintenance purposes.  Testing and maintenance shall only take place on weekdays between the hours of 7 a.m. and 7 p.m.
           2. Traffic shall be limited to no more than one round-trip per day on an average annual basis once construction is complete, except for emergency maintenance purposes.
      H. Submittal requirements.  In addition to the submittal materials required by the special use permit application, the following must be submitted with an application for a telecommunications facility:
            1. A vicinity map showing the proposed telecommunications facility’s distances from existing residential areas, existing residences, major roads and highways, and other telecommunications facilities pursuant to paragraph B, above.
            2. A visual simulation showing the proposed structure as it would be seen from surrounding properties that may be visually impacted by the structure, including but not limited to surrounding residential properties and rights-of-way.  The visual simulation may include a photo montage, field mock-up or other techniques.
            3. A written statement to Douglas County indicating the technical reasons why there is no alternative site for co-location of the facility or written proof of refusal of the owner of the tower(s) in the vicinity to provide space at a fair rate of compensation.
            4. A written statement to Douglas County indicating that the proposed tower structure is designed to accommodate at least one additional service provider in the future, and that the facility owner will make a good-faith effort to work with other service providers to co-locate antennas on the proposed structure in the future.
            5. A copy of the property lease agreement including provisions for removal of the facility within six months of its abandonment, and provisions for county access to the facility for removal where the provider fails to remove the facility within six months of its abandonment.
      I. Conditions of approval.  The following conditions must be met prior to the service provider obtaining a building permit for the telecommunications facility:
            1.The applicant shall provide proof of notification of an offer of co-location opportunities on the new facility to other service providers.
            2. The applicant shall sign and record with the Douglas County recorder a legally binding agreement limiting any co-location costs assessed to other service providers to a pro rata share of the ground lease, site acquisition cost, design, capital costs for construction of the tower including associated permitting costs, and reasonable maintenance, repair and replacement costs.
      J. Reduction in required facility separation.  A reduction in the required separation between telecommunication facilities may be granted as part of the special use permit approval where technical evidence has been provided to substantiate the following findings:
            1. The granting of the variance will not substantially impair the intent and purpose of this title or the goals, policies and objectives in the adopted master plan;
            2. The variance is not requested exclusively on the basis of economic hardship to the applicant;
            3. The variance is necessary and essential to providing the applicant’s wireless service, based on the technical constraints of locating the facility in accordance with the required separation;
            4. Evidence has been submitted to the satisfaction of the county showing that co-location on existing tower structures is not available or is not technically feasible.  Evidence may include a written statement from the service provider with the existing facility that co-location is not feasible.
      K. Variances.  Notwithstanding paragraph J above, all variance requests relating to telecommunications facilities are to be considered under the variance provisions of section 20.606.  In addition to the required findings pursuant to section 20.606, the following findings must be made:
            1. The granting of the variance will not substantially impair the intent and purpose of this title or the goals, policies and objectives in the adopted master plan;
            2. The variance is not requested exclusively on the basis of economic hardship to the applicant;
            3. The variance is necessary and essential to providing the applicant’s wireless service, based on the technical constraints of locating the facility in accordance with the required separation;
            4. For highway or road corridor setbacks, the proposed facility is not visible from the subject right-of-way or the facility includes features that minimize the visual impacts from the subject rights-of-way.
      L. Minor modifications.  Modifications may be approved by the director under the provisions of a minor design review where the modifications meet the following criteria:
            1. The height of the facility does not increase by more than 10 feet above the height of the original facility as approved by a special use permit and the facility meets the height provisions and required setbacks.
            2. The existing facility complies with all other applicable standards in this section.
      M. Abandoned towers.
            1. Any telecommunications facility that is not operated for a continuous period of six months or falls into disrepair shall be considered abandoned. 
            2. The owner of any abandoned telecommunications facility shall remove the facility within six months of its abandonment.
            3. If an abandoned facility is not removed within six months, the county may remove the facility at the property owners expense.
            4. Where two or more users share a single facility, the facility shall not be deemed abandoned until all users cease operation of the facility.
      N. Inventory and tracking.  The department shall compile and maintain a list of telecommunications facilities based on information provided by wireless service providers.  The list shall include existing facility locations, structure heights, number of service providers using the facility, and availability of space for additional users based on prior approvals.
      O. Existing, non-conforming facilities.  Telecommunications facilities approved prior to the adoption of this ordinance that do not meet the required setbacks or height limitations shall be considered legal conforming structures provided that the height of the structure is not increased.  (Ord. 871, 1999)