Nevada County Municipal Code Ch. 7 California Plumbing Code Amendments

The California Plumbing Code as adopted by Section 13.01.140 is adopted with the following amendments.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Adopt the following Appendix Chapters from the 2019 California Plumbing Code: Appendices A, B, D, G and I.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Fees shall be as set forth in the fee schedule adopted by Resolution of the Nevada County Board of Supervisors.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Plan review fees shall be as set forth in the fee schedule adopted by Resolution of the Nevada County Board of Supervisors.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Refer to Section 14.02.070, Section 105.3.2.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Refer to Section 14.02.080, Section 105.5.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Refer to Section 14.02.100, Section 109.4.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Refer to Section 14.02.020, Section 113.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Above 4,000 feet elevation above sea level, when structural conditions necessitate installation of water piping in exterior walls or above ceilings of buildings, the pipes shall be installed to the inside edge of the wall or ceiling framing and insulated, on the unheated side of the pipes, with at least R-19 insulation or equivalent.

Above 4,000 feet elevation above sea level all cold water piping shall be graded back to the water service. Hot water lines shall be sloped to a bleeder valve or valves that are readily accessible. Gravity drains or other approved devices may be used to satisfy this requirement. No part of such water lines shall be trapped.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Section 606.11 WATER SUPPLY VALVE FREEZE PROTECTION.

Above 4,000 feet elevation above sea level the building water service line shall be equipped with a "stop and drain" valve located where the line daylights out of the ground within the building footprint. The drain port of the valve shall be protected from blockage by the use of a sleeve or box over the valve. The valve shall be protected from freezing with insulation material and fitted with a handle that is readily accessible.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Above 4,000 feet elevation above sea level water supply yard piping shall be protected from freezing by a minimum of thirty-six (36") inches of earth covering and shall be extended to within the building footprint before daylighting out of the ground.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

A. No building sewer or private sewage disposal system or part thereof shall be located in any lot other than the lot which is the site of the building or structure served by such sewer or private sewage disposal system or part thereof; nor shall any building sewer or private sewage disposal system or part thereof be located at any point having less than the minimum distances indicated in Table 14.07.21.1, except as provided in subsections B and C of this Section.

B. Nothing contained in this Code shall be construed to prohibit the use of all or part of an abutting or a separate lot to:

1. Provide access to connect a building sewer to an available public sewer when proper cause and legal easement not in violation of other requirements has first been established to the satisfaction of the County Environmental Health Department.

2. Provide additional space for a building sewer or a private sewage disposal system or part thereof, when proper cause and transfer of ownership, or change of boundary, or legal easement not in violation of other requirements has first been established to the satisfaction of the County. The instrument recording such action shall constitute an agreement with the County which shall clearly state and show that the areas so joined or used shall be maintained as a unit during the time they are so used. Such an agreement shall be recorded in the office of the County Recorder as part of the conditions of ownership and use of said properties and shall be binding on all heirs, successors, and assigns of such properties. A copy of the instrument recording such proceedings shall be filed with the County Environmental Health Department.

C. Nothing contained herein shall be construed to prohibit a private sewer line from crossing a public street providing, however, that such use of the public street shall be authorized by an encroachment permit which shall expressly state thereon that it is subject to revocation by the County by giving five (5) days' advance notice, and thereafter the encroachment shall be removed and the use of the property shall cease unless sewage disposal is authorized in some other manner as approved by law. Any such encroachment permit shall be recorded with the County Recorder as part of the agreement required hereinabove.

D. Use of an unabutting lot for a private sewage disposal system may be allowed by the County Environmental Health Department only if all of the following conditions exist:

1. Testing and observation as required by 15.01 of the Nevada County Codes clearly reveal that the lot(s) from which sewage will be generated does not meet the standards for conventional, special design or alternative/advanced wastewater disposal as defined therein; and

2. The applicant can demonstrate to the County Environmental Health Department that said lot would be unbuildable without utilization of an unabutting lot for sewage disposal; and

3. Only one (1) public or private street, highway or right-of-way is to be crossed by the sewer line from the subject lot; and

4. Only one (1) unabutting lot is to be crossed by the sewer line from the subject lot; and

5. The building or site to be served is no more than five hundred feet from the unabutting lot where sewage disposal is proposed; and

6. Compliance with 15.02 of the Nevada County Codes is ascertained, if appropriate; and

7. The parcels under consideration were created prior to the effective date of 11/05/1996.

E. Lots where sewage is to be generated and/or where sewage disposal is proposed that abut to each other or each to another shall be exempt from the requirements in subsection C above provided the proposed sewage collection, treatment and disposal system meets all other requirements of 15.01 of the Nevada County Codes and the California Plumbing Code.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

Above 4,000 feet elevation above sea level all vent terminals shall be protected from closure and sliding snow and ice by the use of formed metal crickets. The metal crickets shall have a minimum vertical height (at the apex) at least one-half of the required vertical height of the vent extension above the roof. In no case shall the cricket measure less than eight (8") inches at the apex. The cricket and flashing shall be secured to the roof framing and sheathing to withstand the shear loads anticipated. Combined flashing and cricket units may be used. Vent pipes shall extend through their flashings and be tightly sealed at the point of penetration so as to prevent the return of sewer gases into the structure.

EXCEPTION: Vent terminals which are made within thirty-six (36") inches of the ridge or on roofs having a pitch of two (2) in twelve (12) or flatter shall not be required to have crickets.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))

The subsection shall apply to all new liquefied petroleum gas (LPG) installations and to existing installations when LPG service is reconnected after service is interrupted that are above 4,000 foot elevation.

A. Two stage regulator/systems shall be installed on all LPG installations with approved steel or PE piping, installed in accordance with the California Plumbing Code and manufactures installation instructions and specifications.

B. The first stage regulator shall be installed under the hinged gauge cover supplied with the tank. The atmospheric pressure aperture of the regulator shall be pointed downward. The first stage regulator shall be plumbed to the riser of the yard piping with soft copper tubing or schedule forty (40) steel pipe with two (2) ninety (90) degree elbow swing joints (one at the top and one below grade) to allow flexibility should tank shifting occur. The riser from the yard piping shall be located not more than three

(3) inches (horizontally) from the walls of the tank. The propane tank shall be placed on reinforced concrete supports and securely attached thereto.

C. The second stage regulator and riser pipe shall be installed on the gable end of the building at least twenty (20') feet from or out of the direct line of discharge of adjacent shedding roofs. The riser shall have swing joints below grade and be 1.5 - 3.5 inches from the wall surface and securely supported/braced to the wall approximately ten inches below the regulator so as to prevent bending of the pipe by lateral snow/ice loads. Second stage regulators installed on the front of a garage shall be protected by a bollard in conformance with the California Fire Code.

Exception 1: On round, octagon or similarly-shaped structures (without gable ends) the riser may be located under the eaves when approved by the Building Official.

Exception 2: On existing services that are reconnected after service is interrupted, where relocation of the riser is not possible due to structural or topographical constraints the riser may be located under the eave with the approval of the Building Official.

D. A protective cover, engineered for the snow load of the area, shall be installed over the second stage regulator and securely supported to the ground or diagonally to the building wall. When supported to the ground, the footing for the supports shall be founded 18 inches below finished grade and the supporting posts shall be securely fastened to the footing and the cover to prevent dislocation of the supports. When supported diagonally to the wall, the supports shall extend from the drip edge of the cover back to the wall. The angle formed by the supports and the wall shall not exceed forty-five (45) degrees from vertical. Existing decks that are used to cover the second stage regulator shall be designed for the snow load.

E. The riser pipes for the yard piping shall not be imbedded in concrete. Concrete placed around such riser shall be held back at least one (1") inch from all sides of the pipe.

F. Location of the shutoff valve at the LPG tank shall be permanently marked by the use of a color-coded snow stake identifying the gas supplier. This stake shall be placed direction adjacent to the tank at the center line of the valve cover and on all sides opposite the yard piping riser. Such stake shall be sufficient height to be visible through anticipated maximum snow depth at the respective location. Installation and maintenance of this snow stake in the responsibility of the LPG user. An LPG shutoff valve shall also be installed at the house under the regulator cover. This valve shall be identified by a placard on the wall directly over the regulator cover and above the anticipated depth of snow.

(Ord. 2374. (01/14/2014); Ord. 2424. (12/13/2016); Ord. 2473. (01/14/2020); Ord. 2515. (12/06/2022); Ord. 2515. (12/13/2022); Ord. 2531. (10/24/2023))