The purpose of these regulations is to establish performance standards to ensure the appropriate location for operations with significant environmental impact, to encourage a mixture of suitable uses, including light industrial uses, in Yountville's commercial zones and to preclude inappropriate uses from having undesirable impacts upon surrounding residential neighborhoods. The following specific rules and regulations established in this chapter shall apply to matters requiring impact regulations.
(Ord. 21-501 § 9)
A. 
Permissible Location Standard. Impacts on adjacent uses are regulated according to the land use designations of this title. Permissible impacts on adjacent uses are divided into two impact categories depending upon their proposed locations, as defined below:
1. 
Impact Category I. Uses located adjacent to existing or planned residential areas (planned residential areas, for this purpose, shall consist of all areas designated for residential use on the adopted Yountville General Plan Map or on Master Development Plans approved in accordance with the Planned Development Review).
2. 
Impact Category II. Uses which are not adjacent and will have no significant impact on established or planned residential developments.
B. 
The performance criteria for each impact category are listed below:
1. 
Noise.
a. 
Impact Category I. All noise-generating operations shall be buffered so that they do not exceed noise levels identified in Chapter 8.04 of this code;
b. 
Impact Category II. All noise generated by industrial or commercial operations shall comply with Chapter 8.04 of this code.
2. 
Light Impact.
a. 
Impact Category I. No bright or flashing lights shall be visible in a residential district. All lighted signs shall be subject to Section 17.132.090 and Chapter 17.152, Signs, of this title;
b. 
Impact Category II. No bright or flashing lights shall be visible. All lighted signs shall be subject to Section 17.132.090 and Chapter 17.152, Signs, of this title.
3. 
Traffic Circulation and Parking.
a. 
Impact Category I. New development must demonstrate that it will not substantially increase truck traffic on residential streets. Trucks over two tons shall not be permitted on local residential streets. Customer and employee parking and truck loading areas shall be provided in accordance with Chapter 17.116, Off-Street Parking and Loading, of this title;
b. 
Impact Category II. Same as above.
4. 
Vibration.
a. 
Impact Category I. No perceptible vibrations shall be permitted off the development site;
b. 
Impact Category II. Same as above.
5. 
Flammable Material.
a. 
Impact Category I. No operations involving the use or storage of flammable materials or fuses shall be permitted adjacent to any residential area;
b. 
Impact Category II. All operations which involve storage, use, or transport of flammable materials or gases must be conducted in a manner that meets with the approval of the Fire Chief; and all facilities must contain such emergency protection and firefighting equipment as are deemed necessary by the Fire Chief.
6. 
Airborne Emissions.
a. 
Impact Category I. No use shall exceed the maximum permissible emissions standards established by the San Francisco Bay Area Air Quality Management District;
b. 
Impact Category II. Same as above.
7. 
Water Quality.
a. 
Impact Category I. The Town shall evaluate liquid waste to be disposed into its sewer systems and report upon the Town's capacity to provide treatment. Industries not connecting to the municipal sewer systems are subject to water quality standards administered by the San Francisco Bay Regional Water Quality Control Board;
b. 
Impact Category II. Same as above.
8. 
Building Size and Architectural Design.
a. 
Impact Category I. All building design and site layouts shall be approved by the Zoning and Design Review Board or Town Council;
b. 
Impact Category II. Same as above.
(Ord. 21-501 § 9)