Chapter 16. Green Building Standards Code

Sec. 9-16.02 Adoption by Reference.

The California Green Building Standards Code, 2016 Edition, as adopted by the State of California and published in the “California Code of Regulations,” is adopted by reference and made a part of this Chapter as though fully set forth herein, subject to the additions and deletions as set forth in this Chapter. (Ord. 500 § 16 (part), 2017)

Sec. 9-16.03 Copies on File.

One (1) copy of the 2016 Edition of the California Green Building Standards Code, as adopted by Section 9-16.02, is on file in the office of the Chief Building Official for inspection by the public. (Ord. 500 § 16 (part), 2017)

Sec. 9-16.04 Amendments, Additions, and Deletions.

The following portion of the Ordinance Code of Contra Costa County, California, is adopted by reference under the authority of Sections 50020 through 50022.9 of the California Government Code:

Adopting the amendments to the 2016 California Green Building Standards Code by the changes, additions, and deletions set forth in Contra Costa County Ordinance No. 2016-22, Chapter 74-4, “MODIFICATIONS” Section 74-4.006.

(a) Section 301.1.1 (Additions and alterations) of CGBSC Chapter 3 (Green Building) is amended to read:

Section 301.1.1 Additions and alterations. The mandatory provisions of Chapter 4 shall apply to additions or alterations of existing residential buildings where the addition or alteration increases the building’s conditioned area, volume, or size. The requirements shall apply only to and/or within the specific area of the addition or alteration.

The mandatory provisions of Section 4.408 shall apply to the following types of construction or demolition projects for existing residential buildings:

1. Projects that increase the total combined conditioned and unconditioned building area by 5,000 square feet or more.

2. Alterations to existing structures impacting 5,000 square feet or more of total combined conditioned and unconditioned building area.

3. Demolition projects when a demolition permit is required.

Exception: Demolition projects undertaken because the enforcing agency has determined that the demolition is necessary to abate a public nuisance or otherwise protect public health and safety.

For the purposes of determining whether a project meets the 5,000 square-foot threshold, the enforcing agency may deem all phases of a project and all related projects taking place on a single or adjoining parcel(s) as a single project.

Note: On and after January 1, 2014, residential buildings undergoing permitted alterations, additions or improvements shall replace noncompliant plumbing fixtures with water-conserving plumbing fixtures. Plumbing fixture replacement is required prior to issuance of final completion, certificate of occupancy or final permit approval by the local building department. See Civil Code Section 1101.1, et seq., for the definition of a noncompliant plumbing fixture, types of residential buildings affected and other important enactment dates.

(b) Section 301.3.2 (Waste diversion) of CGBSC Chapter 3 (Green Building) is amended to read:

Section 301.3.2 Waste diversion. The requirements of Section 5.408 shall apply to additions, alterations, and demolition whenever a permit is required for work.

Exception: Demolition projects undertaken because the enforcing agency has determined that the demolition is necessary to abate a public nuisance or otherwise protect public health and safety.

(c) Section 4.106.4.2 (New multifamily dwellings) of CGBSC Chapter 4 (Residential Mandatory Measures) is amended to read:

Section 4.106.4.2 New multifamily dwellings. For any new multifamily dwelling other than a dwelling type specified in Section 4.106.4.1, at least five percent of the total number of parking spaces provided for all types of parking facilities, but in no case no less than one parking space, shall be electric vehicle charging spaces (EV spaces). Each EV space shall be equipped with fully operational electric vehicle supply equipment (EVSE). The location of each EV space shall be identified on construction documents. Calculations to determine the number of EV spaces shall be rounded up to the nearest whole number.

(d) Section 4.408.1 (Construction waste management) of CGBSC Chapter 4 (Residential Mandatory Measures) is amended to read:

Section 4.408.1 Construction waste management. Recycle and/or salvage for reuse a minimum of 65 percent of the nonhazardous construction and demolition waste in accordance with Section 4.408.2.

Exceptions:

1. Excavated soil and land-clearing debris.

2. The enforcing agency may identify alternate waste reduction requirements if the agency determines that an owner or contractor has adequately demonstrated that diversion or recycling facilities necessary for the owner to comply with this section do not exist or are not located within a reasonable distance from the jobsite.

(e) Section 4.408.2 (Construction waste management plan) of CGBSC Chapter 4 (Residential Mandatory Measures) is amended to read:

Section 4.408.2 Construction waste management plan. Submit a construction waste management plan for the project, signed by the owner, in conformance with Items 1 through 5 prior to issuance of building permit. The construction waste management plan shall be updated as necessary upon approval by the enforcing agency and shall be available during construction for examination by the enforcing agency. The plan must do all of the following:

1. Identify the construction and demolition waste materials to be diverted from disposal by recycling, reuse on the project, or salvage for future use or sale.

2. Specify if construction and demolition waste materials will be sorted on-site (source-separated) or bulk mixed (single stream).

3. Identify diversion and disposal facilities where the construction and demolition waste material will be taken and identify the waste management companies, if any, that will be utilized to haul the construction and demolition waste material. A waste management company utilized to haul construction and demolition waste material must have all applicable County approvals.

4. Identify construction methods employed to reduce the amount of construction and demolition waste generated.

5. Specify that the amount of construction and demolition debris shall be calculated consistent with the enforcing agency’s requirements for the weighing of debris. The owner shall make reasonable efforts to ensure that all construction and demolition debris diverted or disposed are measured and recorded using the most accurate method of measurement available. To the extent practicable, all construction and demolition debris shall be weighed using scales. Scales shall be in compliance with all regulatory requirements for accuracy and maintenance. For construction and demolition debris for which weighing is not practical due to small size or other considerations, a volumetric measurement shall be used. The owner shall convert volumetric measurements to weight using the standardized conversion factors approved by the enforcing agency for this purpose.

(f) Section 4.408.3 (Waste management company) of CGBSC Chapter 4 (Residential Mandatory Measures) is deleted.

(g) Section 4.408.4 (Waste stream reduction alternative [LR]) of CGBSC Chapter 4 (Residential Mandatory Measures) is amended to read:

Section 4.408.4 Waste stream reduction alternative [LR]. Projects that generate a total combined weight of construction and demolition waste disposed of in landfills which does not exceed 3.4 pounds per square foot of the building areas shall meet the minimum 65 percent construction waste reduction requirement in Section 4.408.1. The exceptions in Section 4.408.1 shall not apply to this alternative.

(h) Section 4.408.4.1 (Waste stream reduction alternative) of CGBSC Chapter 4 (Residential Mandatory Measures) is amended to read:

Section 4.408.4.1 Waste stream reduction alternative. Projects that generate a total combined weight of construction and demolition waste disposed of in landfills which does not exceed 2 pounds per square foot of the building areas shall meet the minimum 65 percent construction waste reduction requirement in Section 4.408.1. The exceptions in Section 4.408.1 shall not apply to this alternative.

(i) Section 4.408.5 (Documentation) of CGBSC Chapter 4 (Residential Mandatory Measures) is amended to read:

Section 4.408.5 Documentation. A construction waste management final report containing information and supporting documentation that demonstrates compliance with Section 4.408.1, Section 4.408.2, Items 1 through 5, and, when applicable, Section 4.408.4 or Section 4.408.4.1, shall be provided to the enforcing agency before the final inspection. The required documentation shall include, but is not necessarily limited to, the following:

1. Documentation of the quantity by weight of each material type diverted or disposed, consistent with the requirements of Section 4.408.2, Item 5, and receipts or written certification from all facilities and waste management companies utilized to divert or dispose waste generated by the project that substantiate the amounts specified on the construction waste management final report; or

2. For projects that satisfy the waste stream reduction alternative specified in Section 4.408.4 or Section 4.408.4.1, documentation of the quantity by weight of each material type disposed and the total combined weight of construction and demolition waste disposed in landfills as a result of the project, the corresponding pounds disposed per square foot of the building area, and receipts or written certification from all facilities and waste management companies utilized to dispose waste generated by the project that substantiate the amounts specified on the construction waste management final report.

(j) Section 5.106.5.3 (Electric vehicle (EV) charging) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read:

Section 5.106.5.3 Electric vehicle (EV) charging. [N] New nonresidential construction shall comply either with Section 5.106.5.3.1 or Section 5.106.5.3.2, whichever is applicable, and provide the required number of fully operational EV charging spaces (EV spaces). Each EV space shall be installed in accordance with the California Building Code and California Electrical Code, and the requirements of Section 5.106.5.3.1 or Section 5.106.5.3.2, whichever is applicable.

(k) Section 5.106.5.3.1 (Single charging space requirements) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read:

Section 5.106.5.3.1 Single charging space requirements. [N] If Table 5.106.5.3.3 requires only one EV space for new nonresidential construction, one fully operational EV space must be installed in accordance with the California Electrical Code. The construction plans and specifications for the new nonresidential construction must satisfy the following requirements:

1. The type and location of the EVSE must be identified on the plans and specifications.

2. The plans and specifications must establish that each raceway is not less than trade size one inch.

3. Each, and at least one, listed raceway capable of accommodating a 208/240-volt dedicated branch circuit must be identified on the plans and specifications.

4. Each raceway must originate at a service panel or subpanel serving the area where the EVSE will be located, and must terminate at the location of the required charging equipment and into a listed, suitable cabinet, box, enclosure, or equivalent structure.

5. Each service panel or subpanel must have sufficient capacity to accommodate a minimum 40-ampere dedicated branch circuit for the EVSE.

(l) Section 5.106.5.3.2 (Multiple charging space requirements) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read:

Section 5.106.5.3.2 Multiple charging space requirements. [N] If Table 5.106.5.3.3 requires more than one EV space for new nonresidential construction, the number of fully operational EV spaces specified in Table 5.106.5.3.3 must be installed in accordance with the California Electrical Code. The construction plans and specifications for the new nonresidential construction must satisfy the following requirements:

1. The type and location of the EVSE must be identified on the plans and specifications.

2. Each raceway must originate at a service panel or subpanel serving the area where the EVSE will be located, and must terminate at the location of the required charging equipment and into a listed, suitable cabinet, box, enclosure, or equivalent structure.

3. Each service panel or subpanel must have sufficient capacity to accommodate a minimum 40-ampere dedicated branch circuit for the EVSE.

4. The plans and specifications must include electrical calculations to substantiate that the design of the electrical system, including the rating of equipment and any onsite distribution transformers, has sufficient capacity to simultaneously charge EVs at all required EV spaces at their full-rated amperage.

5. Each service panel or subpanel must have sufficient capacity to accommodate the required number of dedicated branch circuits for the EVSE that will be installed.

(m) Section 5.106.5.3.3 (EV charging space calculation) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read:

Section 5.106.5.3.3 EV charging space calculations. [N] The required number of charging spaces with EVSE for new nonresidential construction must be calculated in accordance with Table 5.106.5.3.3.

Exception: On a case-by-case basis, the building official may require new construction to include fewer EV charging spaces than would otherwise be required by Table 5.106.5.3.3, or require no spaces, if the building official determines either of the following:

1. There is insufficient electrical supply to the new construction to adequately serve the required number of EV charging spaces.

2. The cost of the new construction will be substantially adversely impacted by any local utility infrastructure design requirements that are directly related to the installation of the required number of EV charging spaces.

TABLE 5.106.5.3.3

NONRESIDENTIAL CHARGING SPACE CALCULATION

TOTAL NUMBER OF PARKING SPACES

NUMBER OF REQUIRED EV CHARGING SPACES

1-9

0

10-25

2

26-50

3

51-75

5

76-100

6

101-200

12

201 AND OVER

6%*

*Calculation for spaces shall be rounded up to the nearest whole number

(n) Section 5.106.5.3.4 (Identification) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read:

Section 5.106.5.3.4 [N] Identification. Each service panel or subpanel circuit directory must identify the reserved overcurrent protective device space or spaces for EV charging as “EV CAPABLE.” Each raceway termination location must be permanently and visibly marked “EV CAPABLE.”

(o) Section 5.106.5.3.5 of Chapter 5 of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read:

Section 5.106.5.3.5 [N] Each EV charging space required by Section 5.106.5.3.3 shall be counted as one designated parking space required by Section 5.106.5.2.

(p) Section 5.408.1 (Construction waste management) of CGBSC Chapter 5 Nonresidential Mandatory Measures) is amended to read:

Section 5.408.1 Construction waste management. Recycle and/or salvage for reuse a minimum of 65 percent of the nonhazardous construction and demolition waste in accordance with Section 5.408.1.1.

Exceptions:

1. Excavated soil and land-clearing debris.

2. The enforcing agency may identify alternate waste reduction requirements if the agency determines that an owner or contractor has adequately demonstrated that diversion or recycling facilities necessary for the owner to comply with this section do not exist or are not located within a reasonable distance from the jobsite.

(q) Section 5.408.1.1 (Construction waste management plan) of CGBSC Chapter 5 Nonresidential Mandatory Measures) is amended to read:

Section 5.408.1.1 Construction waste management plan. Submit a construction waste management plan for the project, signed by the owner, in conformance with Items 1 through 5 prior to issuance of building permit. The construction waste management plan shall be updated as necessary upon approval by the enforcing agency and shall be available during construction for examination by the enforcing agency. The plan must do all of the following:

1. Identify the construction and demolition waste materials to be diverted from disposal by recycling, reuse on the project, or salvage for future use or sale.

2. Specify if construction and demolition waste materials will be sorted on-site (source-separated) or bulk mixed (single stream).

3. Identify diversion and disposal facilities where the construction and demolition waste material will be taken and identify the waste management companies, if any, that will be utilized to haul the construction and demolition waste material. A waste management company utilized to haul construction and demolition waste material must have all applicable County approvals.

4. Identify construction methods employed to reduce the amount of construction and demolition waste generated.

5. Specify that the amount of construction and demolition debris shall be calculated consistent with the enforcing agency’s requirements for the weighing of debris. The owner shall make reasonable efforts to ensure that all construction and demolition debris diverted or disposed are measured and recorded using the most accurate method of measurement available. To the extent practicable, all construction and demolition debris shall be weighed using scales. Scales shall be in compliance with all regulatory requirements for accuracy and maintenance. For construction and demolition debris for which weighing is not practical due to small size or other considerations, a volumetric measurement shall be used. The owner shall convert volumetric measurements to weight using the standardized conversion factors approved by the enforcing agency for this purpose.

(r) Section 5.408.1.2 (Waste management company) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is deleted.

(s) Section 5.408.1.3 (Waste stream reduction alternative) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read:

Section 5.408.1.3 Waste stream reduction alternative. Projects that generate a total combined weight of new construction disposal that does not exceed two pounds per square foot of building area may be deemed to meet the 65 percent minimum requirement if approved by the enforcing agency. The exceptions in Section 5.408.1 shall not apply to this alternative.

(t) Section 5.408.1.4 (Documentation) of CGBSC Chapter 5 (Nonresidential Mandatory Measures) is amended to read:

Section 5.408.1.4 Documentation. A construction waste management final report containing information and supporting documentation that demonstrates compliance with Section 5.408.1, Section 5.408.1.1, Items 1 through 5, and, when applicable, Section 5.408.1.3, shall be provided to the enforcing agency before the final inspection. The required documentation shall include, but is not necessarily limited to, the following:

1. Documentation of the quantity by weight of each material type diverted or disposed, consistent with the requirements of Section 5.408.1.1, Item 5, and receipts or written certification from all facilities and waste management companies utilized to divert or dispose waste generated by the project that substantiate the amounts specified on the construction waste management final report; or

2. For projects that satisfy the waste stream reduction alternative specified in Section 5.408.1.3, documentation of the quantity by weight of each new construction material type disposed and the total combined weight of new construction waste disposed as a result of the project, the corresponding pounds of new construction disposal per square foot of the building area, and receipts or written certification from all facilities and waste management companies utilized to dispose waste generated by the project that substantiate the amounts specified on the construction waste management final report.

(Ord. 500 § 16 (part), 2017)