Santa Fe County Sustainable Land Development Code ORDINANCE NO , December 8, 2015

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1 Excerpts from code pertaining to Residential Energy and Water ~ prepared by EverGreen on 1/1/2016 to assist our clients with the County Code. (Please refer to the entire code for official details.) Areas highlighted in yellow are for quick reference and text in red is a comment and not in the code Water Conservation Outdoor Conservation 1. Low water use landscaping techniques or xeriscaping shall be utilized for all development. Drip irrigation and landscape mulching shall be provided. 2. Only low water use grasses, shrubs and trees that are appropriate to the New Mexico climate shall be used. Sod or grass seed that contains Kentucky bluegrass is not permitted. 3. Lawns of non-native grasses shall not exceed 800 square feet and shall only be watered with harvested water or grey water. 4. Landscaping may be watered as needed during the first and second years of growth to become established; thereafter landscaping may be watered as is needed to maintain viability. 5. Watering or irrigation shall be provided through a timed drip irrigation system that ensures that landscaping is not watered between the hours of 11 a.m. and 7 p.m. between the months of May and November. Irrigation systems shall be equipped with a rain sensor so that the irrigation system does not operate when it is raining or has recently rained. Such approved systems include but are not limited to evapotranspiration-based controllers. This paragraph does not apply to gardens or agricultural uses. 6. Outdoor watering or irrigation is prohibited between 11 am and 7 pm from May through September of each year, except for the following: a. Plants being prepared for sale; b. Manual watering by landscape maintenance and contracting personnel; c. Water derived from rainwater catchment systems or a grey water re-use system; and d. Water derived from an acequia or other agricultural irrigation. 7. Car and truck washing is only allowed with the use of a shut-off hose nozzle. 8. An outdoor irrigation system may not be operated if leaking. 9. Water leaks shall be repaired promptly and in no event more than ten (10) days from the beginning of the leak. Proof of repair shall be provided upon request Indoor Conservation. 1. Water saving fixtures shall be installed in all new construction, remodels and in all remodels and renovations when a fixture is being replaced. a. All toilets and flush urinals shall be EPA WaterSense certified or equivalent standard.

2 b. All lavatory faucets shall be EPA WaterSense certified or equivalent standard. c. All showerheads shall be EPA WaterSense certified or equivalent standard. 2. Water conserving appliances shall be installed in all new construction and in all remodels and renovations when an appliance is being replaced. a. Residential dishwashers shall be EPA Energy Star certified or equivalent. b. Residential clothes washers shall be EPA Energy Star certified or equivalent. 3. Water-conserving fixtures shall be installed in strict accordance with the manufacturer s instructions to maintain their rated performance. 4. Hot water systems shall ensure that hot water is delivered within five seconds of a tap being opened. This requirement can be achieved through the use, either alone or in combination, of the following devices or designs: (i) an on-demand circulation system; (ii) a centrally located water heater; (iii) a point-of-use water heater; (iv) short hot-water pipe runs; (v) small diameter piping; (vi) "instant hot" hot water fixtures; or (vii) super-insulation methods 5. A certificate of compliance by a licensed mechanical contractor or plumber that new construction meets the requirements of the SLDC shall be provided. 6. Restaurants and caterers shall provide water and other beverages only upon request. This shall be clearly communicated to the customer in at least one of the following manners: (i) on the menu; (ii) by use of a table tent or single signage on the table; or (iii) posting in a location clearly visible to all customers. 7. Lodging facilities shall not provide a daily linen and towel change for guests staying multiple days unless a guest specifically requests each day that linens and towels be changed. 8. Evaporative coolers shall circulate bleed-off water. 9. Greywater recycling, if provided, shall reduce the annual amount of water needed for use, by the amount of the anticipated greywater recycling Water Harvesting. 1. Rainwater Catchment Systems. (Prior code was based on sq. ft. of HEATED AREA, new code is ROOF SURFACE AREA) a. Rainwater catchment systems are required for all new construction whose roof area is 2,500 square feet or greater. Rainwater catchment systems are required for all remodeling of an existing structure whose roof area, after the remodeling, is 2,500 square feet or greater. Rainwater catchment systems are required of any accessory structure whose roof surface is 500 square feet or greater. b. Systems shall be designed to capture rainwater from a minimum of 85% of the roofed area. c. Structures whose roof surface is 2,500 sq. ft. or greater shall install a cistern that is buried or partially buried and insulated. The cistern shall be connected to a pump and a drip irrigation system

3 to serve landscaped areas. Alternatively, if captured water is to be used for domestic purposes, appropriate plumbing and pumps may be used to convey water to the point of use. d. A structure whose roof surface is 2,500 sq. ft. or less, and any accessory structure shall install as its rainwater catchment system: (i) rain barrels, (ii) cisterns, or (iii) passive water harvesting systems using berms, swales, or tree wells. The system shall capture water from at least 85% of the roofed surface. e. Cisterns shall be sized to hold 1.15 gallons per square foot of roof area. 2. Catchment Requirements, Residential Structures. (Prior code was based on sq. ft. of HEATED AREA, new code is ROOF SURFACE AREA) a. Systems shall be designed to capture rainwater from a minimum of 85% of the roofed area. b. Structures whose roof surface is 2,500 sq. ft. or greater shall install a cistern that is buried or partially buried and insulated. The cistern shall be connected to a pump and a drip irrigation system to serve landscaped areas. Alternatively, if captured water is to be used for domestic purposes, appropriate plumbing and pumps may be used to convey that water to the point of use. c. A structure whose roof surface is 2,500 sq. ft. or less, and any accessory structure whose roof surface is 500 sq. ft. or greater shall install rain barrels, cisterns or other water catchment system including passive water harvesting and infiltration techniques, berms, swales, and tree wells to capture rainwater from a minimum of 85% of the roofed area. d. Cisterns shall be sized to hold 1.15 gallons per square foot of roof area that is captured. 3. Catchment Requirements, Residential Structures Residential Structures. a. Systems shall be designed to capture rainwater from the roofed area. b. Cisterns shall be buried, partially buried or insulated and shall be connected to a pump and a drip irrigation system to serve landscaped areas. Alternatively, if captured water is to be used for domestic purposes, appropriate plumbing and pumps may be used to convey that water to the point of use. c. Cisterns shall be sized to hold 1.5 gallons per square foot of roofed area or the equivalent of a one month supply of water Each new residential structure, excluding mobile homes and manufactured homes and structures constructed to the standards prescribed by the State of New Mexico Earthen Building Materials Code and New Mexico Historic Earthen Buildings Code, shall achieve a HERS rating of 70 or less, or have demonstrated that it achieves some equivalent energy performance. Structures required to achieve this rating shall be designed, constructed, tested and certified according to the Home Energy Rating Standards (HERS) index, as most recently adopted by the Residential Energy Services Network (RESNET) The HERS 70 standard or equivalent shall be certified by a qualified, independent, third-party accredited HERS rater.

4 As an alternative to a HERS 70 requirement, other energy efficiency performance measures or methodologies may be utilized to demonstrate compliance with the requirement, provided that: 1. The residential structure achieves an equivalent or lower level of energy p erformance (in BTUs per square foot per year) as a HERS 70 rated structure; and 2. A New Mexico licensed engineer, architect or qualified independent building science professional performs the analyses, inspections and certifications In addition to the energy performance standard above, new residential structures shall also: 1. Comply with the most recent version of the American Society of Heating, Refrigerating and Air- Conditioning Engineers (ASHRAE) Standard 62.2, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings ; and 2. Complete the United States Environmental Protection Agency s Thermal Bypass Inspection Checklist or Thermal Enclosure System Rater Checklist during the building process, as determined by the Checklist s guidelines. The Administrator shall determine which updated version of the checklist, or equivalent, shall be applicable at any given time. (See NOTES at end of document for details) To demonstrate compliance with these requirements, a preliminary certification of energy performance, signed and/or stamped by the independent third party verifier, shall be documented on a form provided by the County and included as a part of the application package submitted for development review. Similarly, compliance with the ventilation and thermal enclosure checklist requirements will be documented by submittal of forms signed by an independent third party verifier Larger multifamily residential structures that are not included under RESNET s HERS index rating system shall comply with the energy efficiency requirements for nonresidential structures in subsection Nonresidential Structures All new nonresidential buildings shall obtain written confirmation from the United States Environmental Protection Agency that the building is "Designed to Earn the EPA Energy Star Certification". This certification shall be submitted to the County along with the other required materials required to support and application for development approval Nonresidential builders shall, in the actual construction of the structure, to maintain consistency with the energy efficiency elements that resulted in achieving the "Designed to Earn the EPA Energy Star Certification" in order that the building may achieve the EPA Energy Star label during its first few years of operation Reference Material. A reference document will be available in the Growth Management Department to assist the public with regards to this section to include but not limited to: educational brochures, step-by-step compliance instructions, userfriendly forms, and County staff contact information. These materials shall be available in both hard copy and on the County's web site.

5 NOTES ASHRAE 62.2 requires meeting spot and whole house ventilation requirements. The code does not specify which version of 62.2 is applicable. The City of SF, BGNM and LEED currently use the 2010 version and it is detailed below. Spot requirements are: Bathrooms = 50cfm intermittent or 20 cfm continuous Kitchens = 100 cfm (there is also a continuous option) Whole house requirements are calculated as follows: Square footage times.01, plus the number of bedrooms plus 1 (extra person in master) times 7.5 (Sq Ft *.01) + ((Number of BR +1) * 7.5) Example of 3000 sq ft home with 3 bedrooms: 3000*.01 = 30 (3br+1)*7.5 = 30 Total = 60 cfm required Thermal Bypass Checklist: Thermal Bypass is actually included in the 2009 IECC and incorporated in the NM Energy Conservation Code. See Table in the 2009 IECC. The EPA Thermal Bypass Checklist used by some programs and HERS Raters is more thorough and a copy is available as a separate document.