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HomeMy WebLinkAboutWSMU_HICK_WSWP Ordinance_20231106ORDINANCE NO. �_3 J-3 AN ORDINANCE OF THE HICKORY CITY COUNCIL AMENDING ARTICLES 2, 3, 4, 6, 7, S, 9,10,12 AND 14 OF THE HICKORY LAND DEVELOPMENT CODE. WHEREAS, Article 2, Section 2.2 of the Hickory Land Development Code provides for amendments to the Hickory Land Development Code; and WHEREAS, the City of Hickory has reviewed its Land Development Code in light of the Hickory by Choice 2030 Comprehensive Plan and the North Carolina General Statutes and found the amendments shown in EXHIBIT A are necessary to maintain the relevancy of said plan and to remain compliant with state statutes; and WHEREAS, the Hickory Regional Planning Commission considered the proposed amendments during a public hearing on October 25, 2023 and forwarded a recommendation of approval to the City Council; and WHEREAS, Article 2 of the Hickory Land Development Code requires findings the proposed amendments are in response to changing conditions and is reasonably necessary to promote the public health, safety and general welfare, and comply with applicable state statutes; and WHEREAS, the City Council has found Text Amendment 23-02 to be in conformance with the Hickory by Choice 2030 Comprehensive Plan, NOW, THEREFORE, BE IT ORDAINED by the City Council of Hickory, North Carolina, THAT THE PROPOSED AMENDMENTS TO THE HICKORY LAND DEVELOPMENT CODE AS DESCRIBED IN EXHIBIT A are approved. SECTION 1. Findings of Consistency and Reasonableness. a) Whether the proposed amendment corrects an error or inconsistency in the Land Development Code or meets the challenge of a changing condition. The amendments reflect updates found necessary ensure the continued relevancy of the Hickory by Choice 2030 Comprehensive Plan and remain in conformity with the North Carolina General Statutes. b) Whether the proposed amendment is consistent with the Hickory by Choice Comprehensive Land Use and Transportation Plan, and the stated purpose of the Land Development Code. The proposed amendments work to further implement the Hickory by Choice 2030 Comprehensive Plan. Land Development Code - Amendments 2023 Page 1 of 2 c) Whether the proposed amendments will protect the public health, safety and general welfare. The amendments further the City's efforts to protect the health, safety, and general welfare of the public. SECTION 2. All ordinances or provisions of the Hickory City Code which are not in conformance with the provisions of the Amendment occurring herein are repealed as of the effective date of this Ordinance. SECTION 3. Technical Corrections. City Staff is authorized to correct any typographical, cross- reference, numbering, formatting, or other errors which may hereafter be discovered and to publish or distribute correction sheets as may be necessary. This section shall not be construed as authorizing City Staff to make any substantive changes to the provisions of the code without presenting the same to Council for consideration and approval as required by law. Based upon these findings, the Hickory City Council has found Rezoning Petition 23-02 to be reasonable and consistent with the findings and recommendations of the Hickory by Choice 2030 Comprehensive Plan. SECTION 4. This Ordinance shall become effective upon adoption. ORDAINED (SEAL)' V - Attest: Debbie D. Miller, City Clerk Council of Hickory, North Carolina, this, the J i.i day of THE CITY OF HICKORY, a North Carolina Municipal Corporation B Guess, Ma r ���� Approved as to form this b� day of 32023. V1rA0 Attorney for the City of Hickory Land Development Code - Amendments 2023 Page 2 of 2 EXHIBIT A 4.4.11 Certificate of Appropriateness Procedures. Certificates of Appropriateness shall be reviewed and approved in accordance with the procedures of Sec. 2.5. 4.5 Watershed Protection Overlay District (WP--O) (TA 18--01) 4.5.1 General Provisions Intent. The WI'-O, Watershed Protection Overlay district provisions ofthis section are intended to carry out the requirements of Article 21 of Chapter 143 of the General Statutes of North Carolina and to limit the exposure of public supply watersheds to pollution from surface water runoff. The sources of such pollution include stormwater runoff from built upon areas, leachate from sanitary landfills, accidental spills of hazardous materials, wastewater discharges, soil erosion, land application of sludge or petroleum contaminated soils and other point and nonpoint sources of pollution. Generally, land within the Lake Hickory Water Supply Watershed is classified as WS- IV, and land within the Jacob's Fork Water Supply Watershed is classified as WS41T. Effect of WP-O District Designation. The WP-O district is applied in combination with ("everlaying underlying") existing base zoning districts and has the effect of modifying the requirements, regulations and procedures applying in the applicable base -zoning district to the extent expressly indicated in this section. When no special WF-O district standards are specked, all other applicable regulations of this Land Development Code will govern. 4.5.2 Applicability; Exemptions (TA .21-01) New development within WS-IV watershed areas on parcels or project sites equal to or greater than one (1) acre shall comply with the requirements of this section. Development on parcels or project sites less than one (1) acre are not exempt if they are part of a larger common plan of development or sale, even though multiple, separate or distinct activities take place on different schedules. All new development shall comply with the buffer requirements of Sec. 4.5.10, Existing development is not subject to the requirements of this section. Expansions to structures classified as existing development must meet the requirements ofthis ordinance, however, the built - upon area of the existing development is not required to be included in the density calculations. Single lots of record as of June 3A, July 1, 1993, if zoned for residential use, may be developed for single family residential purposes in accordance with the other requirements of the Hickory Land Development Code without being subject to the restrictions of this section. Such lots of record shall not be required to be combined to achieve the density standards of this section. Expansions to non -single family structures classified as existing development must meet the requirements of this section; however, the built upon area of the existing development is not required to be included in the density calculations. Expansions to structures other than existing development must meet the requirements of this section for the entire site. Redevelopment of built upon areas of existing development is allowed if the rebuilding activity does not have a net increase in built upon area or provides equal or greater storinwater control than the previous development. Single family dwellings may be expanded, redeveloped or replaced in accordance with the other requirements of the Hickory Land Development Code without being subject to the restrictions of this section. Nothing contained herein shall repeal, modify, or amend any state or federal law or regulation, or any ordinance or regulation pertaining thereto except any ordinance which these regulations 72 City of Hickory Land Development Code (2023 Update) EXHIBIT A specifically replace; nor shall any provision of this ordinance amend, modify, or restrict any provisions of the City's Code of Ordinances resolutions, and regulations in effect in the City at the time of the adoption of this ordinance that may be constituted to nrnpair or reduce the effectiveness of this ordinance or to conflict with any of its provisions. It is not intended that these regulations interfere with any casement, covenants or other agreements between parties. However, if the provisions of these regulations impose greater restrictions or higher standards for the use of land or a building, then the provisions of these regulations shall control. 4.5.3 WP-0 District Boundaries The boundaries of the WP-0 district are shown on the official zoning map. The WP-O district is divided into critical area, balance of watershed, and protected area sub districts shown on the official zoning atlas. 4.5.4 Definitions (TA 21-01) Unless specifically defined below, words or phrases used in this section shall be interpreted so as to give them the meaning they have in common usage and to give this section its most reasonable application. The definitions of this subsection shall be used solely for the purpose of interpreting and administering the Watershed Overlay district provisions of this section. Tenn Definition Animal Unit A unit of measurement developed by the US Enviromnental Protection Agency that is used to compare different types of animal operations. Balance of Watershed (BW) The area adjoining and upstream of the critical area in the WS-Ill (Jacob's Fork) water supply watershed. The "balance of watershed" is comprised of the entire land area contributing surface drainage to the stream, river, or reservoir where the water supply intake is located. This term applies to any portion of the Hickory Regional Planning Area located in the Jacobs Fork Water Supply Watershed for the application of watershed protection overlay district regulations. Buffer An area of natural or planted vegetation through which storm water runoff flows in a diffuse manner so that the runoff does not become channelized and which provides for infiltration of the runoff and filtering of pollutants. The buffer is measured landward from the normal pool elevation of impounded structures and from the bank of each side of streams or rivers. Built -Upon Area Built -upon area means impervious surface and partially impervious surface to the extent that the partially impervious surface does not allow water to infiltrate through the surface and into the subsoil. 'Built -upon area" does not include a slatted deck; the water area of a swimming pool; a surface of number 57 stone, as designated by the American Society for Testing and Materials, laid at least four inches thick over a geotextile fabric; a trail as defined in G.S. 113A-85 that is either unpaved or paved as long as the pavement is porous with a hydraulic conductivity greater than 0.001 centimeters per second (1.41 inches per hour); or landscaping material, including, but not limited to, gravel, mulch, sand, and vegetation, placed on areas that receive pedestrian or bicycle traffic or on portions of driveways and parking areas that will not be compacted by the weight of a vehicle, such as the area between sections of pavement that support the weight of a vehicle (except as exempted by State law). Common Plan of Site with multiple lots where there is a single development plan for all the lots, Development usually represented by a master plan or a set of declarations or restrictive covenants. City of Hickory Land Development Code (2023 Update) 73 EXHIBIT A Critical Area The watershed area adjacent to Lake Hickory west of the NC 127 bridge extending either one half mile fiom the normal pool elevation ofthe Iake or to the ridgeline of the watershed (whichever comes first) where the risk associated with pollution of the water, supply is greatest. This teen also applies to any portion of the Hickory Regional Planning Area located in the Jacob's Fork Water Supply Watershed for the application of watershed protection overlay district regulations. Developed Parcel Any parcel of a parcel pair that, under any approval granted under this part, may be developed to a development density or intensity that exceeds the maximum development density or intensity that would apply to the parcel if the paired -parcel averaged -density development option were not available. Exemption An exemption is the complete waiver of a management requirement or the relaxation of any management requirement that applies to a development proposal intended to uali under the high -density option. Existing Development Those projects that are built or that have a established vested right under North Carolina General Statutes as of July 1, 1993. EAsting development-, far the these be defiRed those purposes of f ules, gball as projects that built er- these #mt have afe projects at a iniaiii4iw+i established a: vest -ad Fight Nn-44-h C-244-elina low the date this Water Supply Ordi zoning as of effective 1, 1993) ter- such earlier-t;Mr. t4atthe HiekeFy-s -City of managemenfi .aiwe shall s e.fi. based ., at least a .,F tY, ,, Fa 11 .,...»,,g oFdi ��.+ .Itl T.rJ�.Je , Blzitrria. 0) Subsiantial expenditures of resources (time, labor-, Rqeney)based 9R a g ed Nth reliance .,poi having ,ed a appi-eyal fi•9m the Gib, ..�F71;..kei:..+e fine: ,.,, ...,....,.... .mot...., .....,,,� .. ya4id pr-,,....e group b (2) Having a va4id mbuil&g 1.y Nef4h Gafelina General pemmit as aRfhwized Statute Existing Lot A lot which is part of a subdivision, a plat of which has been recorded in the Office of the Register of Deeds prior to July 1, 1993. Hazardous Material Any substance listed as such in the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) at 42 U.S.C. Chapter 103 (CERCLA); the 1986 amendments to CERCLA known as the Superfund Amendments and Reauthorization Act (SARA, Section 302 (dealing with extremely hazardous substances), or 33 U.S.C. § 1321 (Section 311 of the Clean Water Act dealing with oil and hazardous substances. hupervious Coverage That portion of a development project that is covered by impervious or partially (TA 14-01) impervious cover including buildings, pavement, gravel areas, recreation facilities (e.g., tennis courts, etc.) (Note: Wooden slatted decks and the water area of a swunming pool are considered pervious.) Measurements of impervious coverage shall be based upon net project area excluding land within existing street right of way or within the flooding easements of Lake Hickory. Landfill A facility used for the disposal of solid waste on land in a sanitary manner in accordance with Chapter 130A, Article 9 of the NC General Statutes. For the purpose of this section, the term does not include composting facilities. Major Variance A variance that is not a minor variance as defined in this ordinance. Minor Variance A variance from the minimum statewide watershed protection rules that results in a relaxation, by a factor of up to five (5) percent of any buffer, density or built -upon area requirement under the high -density option; or that results in a relaxation, by a factor of up to ten (10) percent, of any management requirem ent under the low -density option. For variances to a vegetated setback requirement, the percent variation shall be calculated using the footprint of built -upon area 74 City of Hickory Land Development Code (2023 Update) EXHIBIT A proposed to encroach with the vegetated setback divided by the total area o ve etated setback within the project, Nonresidential Development All development other than residential development, agriculture or silviculture. Paired -parcel Averaged- A development proposal that includes a parcel pair meeting the development standards density Development of this Section and that qualifies for local development approval under the density- A.14-OI averaging provisionofNCGS §143-214.5. Parcel Pair Two noncontiguous parcels of land under the same or separate ownership, or two contiguous parcels of land under separate ownership, the development plans for which have been submitted in tandem so as to qualify for density averaged development permission under this Section. Perennial Stream Streams that have flow year-round and are shown on the US Geological Survey's quadrangle as a solid blue line or as identified by the jurisdictional assessment required in this section. Protected Area The area adjoining and upstream of the critical area of the Water Supply Watershed in which protection measures are required. The boundaries of the protected area are defined as extending five miles upstream and draining to the portions of Lake Hickory west of the NC 127 bridge or to the ridgeline of the watershed, whichever comes first. This terra also applies to any portion of the Hickory Regional Planning Area located in the Jacobs Fork Water Supply Watershed for the application of watershed protection overIa district regulations. Storrnwater Control Measures A 9treFteral or nonstractaFal base-4 iee r r management PERG 1150d g (SCMs) eembinatieft to r dHe inputs t : nt sewee receiving a4ers ordev to aehieve water alit., pileteetion b.e als A permanent structural device that is designed, constructed, and maintained to remove pollutants from storinwater runoff by promoting settling or filtration; or to mimic the natural hydrologic cycle by promoting infiltration, evapo-transpiration, post -filtration discharge, use of stormwater, or a combination thereof. Stoirawater Design Manual The Iatest edition of the Stormwater Design Manual published by the North Carolina Department of Environmental Quality, Division of Energy, Mineral, and Land Resources (DEQ, DEMLR) Surface Waters All waters of the State as defined in NCGS 143-212 except ground waters. Undeveloped Parcel The parcel in a parcel pair that is not developed. Vegetative Conveyance A low -density stormwater diversion / control feature meeting the following criteria: 1. Side slopes shall be no steeper than 3:1 (horizontal to vertical) unless it is demonstrated the soils and vegetation will remain stable in perpetuity based on engineering calculations and on -site soil investigation; and 2. The conveyance shall be designed so that it does not erode during peak flow form the 10- ear storm event as demonstrated by engineering calculations. Waterbody A natural or man-made basin, including lakes, ponds, and reservoirs, that stores surface water permanently at depths sufficient to produce the growth of non -hydrophilic rooted plants. Water Dependent Structure Any structure for which the use requires access to or proximity to or siting within surface waters to fulfill its basic purpose, such as boat ramps, boathouses, docks and bulkheads. Ancillary facilities such as restaurants, outlets for boat supplies, parking lots and commercial boat storage areas are not water de endent structures. Watershed The entire land area contributing surface drainage to a specific point (e.g., the water supply). City of Hickory Land Development Code (2023 Update) 75 EXHIBIT A 4.5.5 Allowed and Prohibited Uses in the Crifleal Are Watershed Areas Allowed = Yes / Prohibited = No Activity Use ;WS-III CA jWS-III SW 'WS-IV CA ,WS-IV PA Newlandfills No Yes No Yes New permitted residual Iand No Yes No Yes application Newpermitted petroleum sl, Yes No Yes contaminated soils sites NPDES General or Individual Yes Yes Yes Yes Stormwater dischar es NPDES General Permit Yes Yes Yes Yes Wastewater Discharges pursuant to 15A NCAC 0 2 H .0127 New NPDES Individual Permit No Yes Yes Yes domestic treated wastewater discharge New NPDES individual Permit No" Noe Yes Yes industrial treated wastewater dischar e Non -process industrial waste Yes Yes Yes Yes New industrial connections INN) No Yes Yes and expansions to existing municipal discharge with pretreatment program pursuant toISA NCAC 02H .0904 Sewage Nor Not Nor Noy Industrial Waste Noc Noc Noc Noc Other wastes No, Nor Noc No, Groundwater remediation Yes Yes Yes Yes project dischar ese Agriculturef Yes Yes Yes Yes Silvicultureg Yes Yes Yes Yes Residential Developmenth Yes Yes Yes Yes Non-residential DeveIopmenthi Yes Yes Yes Yes Nonpoint Source Polludonk Yes Yes Yes Yes Animal Operations) Yes Yes Yes Yes N otes: a Permitted pursuant to 15A NCAC 02S .0104 e Except non -process industrial discharges are allowed c Only allowed if specified in 15A NCAC 0213.0104 d Not allowed if activity(ies) has/have adverse impact on human health Where no other practical alternative exists qn WS-I watersheds and Critical Areas of WS-1I, WS-III, and WS-IV watersheds, agricultural activities conducted after 1/1/1993 shall maintain a minimum 10- foot vegetated setback or equivalent control as determined by Soil and Water Conservation Commission along all perennial waters indicated an most recent version of USGS 1.24000 scale (7.5 minute) topographic maps or as determined by local government studies. g Subject to Forest Practice Guidelines Related to Water Quality (02 NCAC 60C .0100 to .0209) Effective 4/1/2018 h See density requirements in 15A NCAC 0213 .0624 t See different allowed and not allowed in this table. i Watershed shall remain undeveloped except for following uses when they cannot be avoided: power transmission lines, restricted access roads, and structures associated with water withdrawal, treatment, and 76 City of Hicicory Land Development Code (2023 Update) EXHIBIT distribution of WS-I waters, Built upon area shall be designed and located to minimize stormwater runoff impact to receiving waters. kNon Point Source pollution shall not have adverse impact as defined in 15A NCAC 02H .1002, on use as water supply or any other designated use. 'Deemed permitted, as defined in 15A NCAC 02T .0103 and permitted under 15A NCAC 2H .0217 4.5.6 Restrictions on Uses within the Protected and Critical Areas Within the critical area, agriculture is subject to the provisions of the Food Security Act of 1985 and the Food, Agriculture, Conservation and Trade Act of 1990. Agricultural activities must maintain a minimum 10 foot -wide vegetated buffer or equivalent control as determined by the Soil and Water Conservation Commission, along all perennial waters as shown on the official zoning atlas. Animal operations greater than 100 animal units shall employ best management practices by July 1, 1994. The Soil and Water Conservation Commission is responsible for implementing these provisions pertaining to agricultural activities. Silviculture activities shall be subject to the provisions of the Forest Practices Guidelines Related to Water Quality (15A NCAC 1.1.0101.0209). The North Carolina Division of Forest Resources is responsible for implementing these provisions pertaining to silviculture activities. New nonresidential development within watershed areas shall incorporate adequately designed, constructed and maintained spill containrnont structures if hazardous materials are either used, stored or manufactured on the premises. The construction of new roads and bridges and nonresidential development shall minimize built upon area, divert stormwater away from surface water supply waters as much as possible, and employ stormwater control measures (SCMs) to minimize water quality impacts. Road construction shall use SCMs outlined in the North Carolina Deparinnent of Transportation document entitled, "Best Management Practices for the Protection of Surface Waters. 4.5.7 Density Requirements Within the protected and critical areas, the following density and impervious coverage limits shall apply to new development that is not otherwise exempted by Section 4.5.2 above; Low Density Option (WS-III) (1) New development under the low -density option is not required to provide SCMs meeting the design standards of the NCDEQ, DEMLR as the primary treatment system for stormwater runoff. (2) Within the critical area, residential uses are allowed at a maximum density of 1 dwelling unit per acre; other residential and all nonresidential development shall be subject to a maximum impervious coverage limit of 12 percent. Stormwater runoff from the development shall be transported by vegetated conveyances to the maximum extent practicable. (3) Within the pfateeted are R balance of watershed, single-family detached residential projects are allowed at a maximum density of 2 dwelling units per acre; all other residential and all nonresidential development shall be subject to a maximum impervious coverage limit of 24 percent. Stormwater runoff from the development shall be transported by vegetated conveyances to the maximum extent practicable. City of Hickory Land Development Code (2023 Update) 77 EXHIBIT A All built -upon areas shall be designed and located to minimize stormwater runoff impact to the receiving waters and minimize concentrated stormwater flow, maximize the use of sheet flow through vegetated areas, and maximize the flow length through vegetated areas. Areas of concentrated density development shall be located in upland areas and away, to the maximum extent practical, from surface waters and drainage ways. The remainder of the tract shaII remain in a vegetated or natural state. The title to the open spaces area(s) shall be conveyed to an incorporated homeowners association for management; to a local government for conservation as a park or open space; or to a conservation organization, for preservation in a permanent casement. When a property association is not incorporated, a maintenance agreement shall be filed with the property deeds. Cluster development that meets the applicable low density requirement shall transport stonnwater runoff by vegetated conveyances to the maximum extent practical. 4.5.9 Planned Developments Planned developments shall be treated as a single property where development -wide stormwater and erosion control measures are utilized. Project densities and impervious coverage may be calculated on a development -wide basis for such projects. 4.5J 0 Buffer Areas Required A mif�um 100 foot vegetative buffeF is FeElHiFed f0f all iiew high density develepmefA aetivities a sity develepmefA tiyit;. �„�a! torn . IITD n d N development t i tte 6i� at+?•urru�ir`u�cra-ir'i�hIF��l�e-ar.�ztf}C-t�rv�=rcn=v�C-zv�irr2ir«a�cni�cccv within the NaMr- e-wept fbi! aftifieial sirearn bank or shoreline stabilization, water dependent runoff away from sur-faee V,'_F#P_.4'S -And ma?dffiii�e the utilization of steFmwater- best management -pFaetioes. A minimum one hundred (100) foot vegetative setback is required for all new development activities that exceed the low -density option; otherwise, a minimum thirty (30) foot vegetative setback for development activities is required along all perennial waters indicated on the most recent versions of U.S.G.S. 1:24,000 (7.5 minute) scale topographic maps or as determined government studies. Desirable artificial streambank or shoreline stabilization is permitted. Where USGS topographic maps do not distinguish between perennial and intermittent streams, an on -site stream determination may be performed by an individual qualified to perform such stream determinations. No new development is allowed in the buffer except for water dependent structures, other structures such as flag poles, signs and security lights which result in only diminutive increases in impervious area and public projects such as road crossings and greenways where no practical alternative exists. These activities should minimize built -upon surface area, direct runoff away from the surface waters and maxim ize the utilization of stormwater Best Management Practices. City of Hickory Land Development Code (2023 Update) 79 EXHIBIT A 4.5.11 Calculation of Project Density (A) The following requirements shall apply to the calculation of project density. (1) Project density shall be calculated as the total built -upon area divided by the total project area; (2) A project with "Existing Development," as defined in this ordinance, may use the calculation method in Sub -Item (1) of this Item or may calculate project density as the difference of total built -upon area minus existing built -upon area divided by the difference of total project area minus existing built -upon area. (3) Expansions to Existing Development shall be subject to 15A NCAC 026 .0624 except as excluded in RUle15A NCAC 02B .0622 (1)(d)_ (4) Where there is a net increase of built -upon area, only the area of net increase shall be subject to density and built upon area limits. (5) Where Existing Development is being replaced with new built -upon area, and there is a net increase of built -upon area, only the area of net increase shall be subject to density and built upon area limits. (6) Total project area shall exclude the following: (a) areas below the normal high water fine (NHWL); and (b) areas defined as "coastal wetlands" pursuant to 15A NCAC 07H .0205, herein incorporated by reference, including subsequent amendments and editions, and available at no cost at http:llreports.oah.state.nc.us/ncac,asp, as measured landward from the NHWL; and (7) Projects under a common plan of development shall be considered as a single project for purposes of density calculation except that on a case -by -case basis, local governments may allow projects to be considered to have both high and low density areas based on one or more of the following criteria: (a) natural drainage area boundaries; (b) variations in land use throughout the project; or (c) construction phasing. (B) Low Density Projects In addition to complying with the project density requirements of Item (A) of this Rule, low density projects shall comply with the following: (1) Vegetated Conveyances. Stormwater runoff from the project shall be released to vegetated areas as dispersed flow or transported by vegetated conveyances to the maximum extent practicable. Vegetated conveyances shall be maintained in perpetuity to ensure that they function as designed. Vegetated conveyances that meet the following criteria shall be deemed to satisfy the requirements of this Sub -Item: (a) Side slopes shall be no steeper than 3:1 (horizontal to vertical) unless it is demonstrated the soils and vegetation will remain stable in perpetuity based on engineering calculations and on -site soil investigation; and (b) The conveyance shall be designed so that it does not erode during the peak flow from the 10-year storm event as demonstrated by engineering calculations. 80 City of Hickory Laud Development Code (2023 Update) EXHIBIT A (2) CURB OUTLET SYSTEMS. In lieu of vegetated conveyances, low density projects shall have the option to use curb and gutter with outlets to convey stormwater to grassed swales or vegetated areas. Requirements for these curb outlet systems shall be as follows: (a) The curb outlets shall be located such that the swale or vegetated area can carry the peak flow from the 10-year storm and at a non -erosive velocity; (b) The longitudinal slope of the swale or vegetated area shall not exceed five percent except where not practical due to physical constraints. In these cases, devices to slow the rate of runoff and encourage infiltration to reduce pollutant delivery shall be provided; (c) The swale's cross section shall be trapezoidal with a minimum bottom width of two feet; (d) The side slopes of the swale or vegetated area shall be no steeper than 3:1 (horizontal to vertical); (e) The minimum length of the swale or vegetated area shall be 100 feet; and (f) Low density projects may use treatment swales designed in accordance with 15A NCAC 02H .1061 in lieu of the requirements specified in Sub -Items (a) through (e) of this Sub -Item. (C) HIGH DENSITY PROJECTS. In addition to complying with the project density requirements of Item (A) of this Rule, high density projects shall comply with the following: (1) Stormwater Control Measures (SCMs) shall be designed, constructed, and maintained so that the project achieves either "runoff treatment" or "runoff volume match" as those terms are defined in 15A NCAC 02B .0621; (2) For high density projects designed to achieve runoff treatment, the required storm depth shall be one inch. Applicants shall have the option to design projects to achieve runoff volume match in lieu of runoff treatment; (3) Stormwater runoff from off -site areas and existing development, shall not be required to be treated in the SCM. Runoff from off -site areas or existing development that is not bypassed shall be included in sizing of on -site SCMs; (4) SCMs shall meet the relevant Minimum Design Criteria set forth in 16A NCAC 02H .1050 through .1062; and (5) Stormwater outlets shall be designed so that they do not cause erosion downslope of the discharge point during the peak. 4, 5.12Appli cation Submittal Requirements (TA21-01) In addition to the inforrnation otherwise required to be submitted with Zoning Compliance Permits, the following information shall be required to be submitted with Zoning Compliance Permit applications for all projects within the WP-0 district: (1) The square footage and percent of impervious coverage area. (2) For residential projects, total dwelling units and dwelling units per acre. (3) The accurate location of all perennial streams and natural drainage areas on the property. (4) The location and landscaping proposed for all required buffer areas. (5) For high density projects, copies of the development plan including a location reap, adjoining property owners, lot dimensions, and rights of way; the accurate location of all existing and proposed buildings and other structures, and the location and size in square feet of all impervious coverage areas. In cases where the developer intends to sell development rights to a third party or subdivide the property, the plan must specify the maximum allowed impervious coverage area for each parcel or tract. (6) For high density projects, the location of any storrwater SCMs and copies of the plans and specifications for any Stormwater SCMs designed and sealed by a North Carolina City of Hickory Land Development Code (2023 Update) 81 EXHIBIT A (2) Sufficient information shall be submitted so that it may be determined that the density of the paired parcels, calculated either by dwelling units per acre or built upon area, shall not exceed the density that would be allowed if the parcels were developed separately. The paired parcels shall be located within the same water supply watershed and preferably in the same drainage area of the watershed. Parcels to be used in pairs may be located in the Protected or Critical Areas. However, if one of the parcels is located in the Critical Area and one is located in the Protected Area the Critical Area parcel shall not be developed beyond the applicable density requirements for its classification. (3) Vegetative buffers shall at a minimum meet the appropriate minimum statewide water supply watershed protection requirements on both parcels in the parcel pair according to the density of development occurring on each parcel. Areas of concentrated density development are to be Iocated in upland areas, and to the maxunum extent practical, away from surface waters and drainageways. (4) Sufficient information shall be submitted so that it may be demonstrated that the parcels are designed to: a. Minimize storinwater runoff impact to the receiving waters by minimizing concentrated storm water flow; b. Maximize the use of sheet flow through vegetated areas; c. Minimize impervious surface areas; d. Locate development away from surface waters and drainage ways to the maximum extent practicable; and c. Convey storm water fi•om developed areas by vegetated swales to the maximum extent practical. (5) The undeveloped parcel(s) or portion(s) thereof shall remain in a vegetated or natural condition and shall be placed in a permanent conservation easement. (6) Applicants shall agree to bind themselves and their successors in title, individually and collectively, to maintain the pattern of development proposed in perpetuity. Parties to enforcement of such agreement shall include the City of Hickory. No such agreement shall be accepted without approval of the Staff Attorney as to the legal sufficiency of the documents involved. (7) Undeveloped land areas proposed for incorporation into the density or impervious coverage area calculation shall meet the following criteria: a. Projects in the Protected Area or Balance of Watershed may incorporate undeveloped land elsewhere in the Protected Area, Balance of Watershed or Critical Area of the same water supply watershed. The amount of additional .undeveloped acreage required shall be determined by dividing the appropriate density or impervious coverage area factor into the number of dwelling units or impervious coverage area in excess of the amount permitted on the project site by these regulations to determine the arnount of other land to be reserved as undeveloped so that the overall density or intensity of the project shall not exceed the density or intensity that would be allowed if the parcels were developed separately. b. Parcels located in critical areas may not be developed beyond the applicable density requirements of its classification. City of Hickory Land Development Code (2023 Update) 83 EXHIBIT A 4.7.7 Architectural Compatibility Buildings used or constructed for use in the NC 127-0 shall be constructed so as to be architecturally compatible with the surrounding residential structures in the neighborhood. Architectural Compatibility shall include: Buildings used for non-residential pia -poses shall not exceed 5,000 square feet in total floor area and two stories in height. All such buildings shall have sloped roofs, entrances oriented towards the abutting street and be constructed of materials compatible with the building material used in the immediate area including brick, stone, wood, and other natural materials. 4.7.8 Signs (TA II-01) Non-residential properties in the NC 127-0 shall be allowed one free standing externally lit sign, a maximum of 16 square feet in area and six (6) feet in height and one externally lit waII sign a maximum of 16 square feet in area. Signs shall be constructed of materials compatible and consistent with the neighborhood in which they are located. Such materials shall be limited to wood, brick or stone (excluding smooth -faced block), iron or other similar ;petals, and other natural materials. Such signs may be created from synthetic materials that closely replicate the materials listed in this section. All signs shall comply with the standards of this subsection, as well as the standards of Chapter 10 4.7.9 Regulation of Building Design Elements (TA 21-01) Except as authorized by NCGS 160D-702(b), this section shall not regulate the building design elements of any structures subject to regulation under the North Carolina Residential Building Code for One wau Two Family Dwellings. 4.8 High Rise Sign Overlay District (HRS-O) 4.8.1 Description The High -Rise Sign Overlay District (HRS-O) regulates signage and advertising apparatus for businesses that rely on motorists utilizing U.S Interstate 40 (1-40). The boundaries of the HRS-O are shown on the City of Hickory's Official Zoning Map, 4.8.2 Development Standards (TA 11-01) (TA 18-01) No more than one (1) high rise sign shall be erected on a zoning lot. The maximum height of a high-rise sign shall not exceed 60 feet. The maximum area of high-rise signs shall not exceed 200 square feet. All high-rise signs shall be set back at least 5 feet from all lot lines. Where a high-rise sign is installed, an additional ground mounted freestanding sign may be installed. The area of the high-rise sign shall be excluded from calculations of permitted sign area as outlined in Chapter 10. City of Hickory Land Development Code (2023 Update) 93