Napa County Municipal Code Ch. 13.04 Approved Water Supply Systems

The term "director" as used in this chapter shall mean the director of planning, building, and environmental services, or the director's designee.

(Ord. No. 1374, § 1, 9-11-2012)

An "approved water supply system" shall mean any of the following:

A. A public utility;

B. A public water system as defined in the California Health and Safety Code Section 116275 and approved by the appropriate authority, including a public water system for which a permit has been issued pursuant to the aforementioned code;

C. An individual water supply system consisting of a well, spring or any other source approved by the director and developed in accordance with and meeting the standards of this division.

(Ord. 1252 § 8, 2005: Ord. 1159 § 1 (part), 1999)

(Ord. No. 1374, § 2, 9-11-2012)

Every new dwelling unit, for which a building permit is issued or for which an application for the issuance of a building permit is made, shall be connected to an approved water supply system. A dwelling unit, for purposes of this division, shall mean a room or connected rooms constituting a separate, independent, housekeeping establishment, physically separated from other rooms or dwelling units in the same structure and containing independent cooking or sleeping facilities.

(Ord. 1159 § 1 (part), 1999)

An individual water supply system shall provide water which is pure, wholesome and potable and does not endanger the lives or health of persons or otherwise adversely affect the public welfare.

(Ord. 1159 § 1 (part), 1999)

The source of an individual water supply system shall have a sustained yield (as determined by Section 13.04.050) of not less than one gallon per minute per each dwelling unit.

(Ord. 1159 § 1 (part), 1999)

A. The determination of yield of any water supply source shall be made by continuous pumping until the production rate is established and the drawdown level stabilized for at least one hour. Wells with less than five gallons per minute shall be tested at maximum production for at least four hours. Other methods for the determination of yield may be required by the director and must receive prior approval by the director.

B. The determination of yield of any water source under this division shall be made by the director and shall be supported by a record of tests performed by a person duly licensed to perform such tests in the state of California. The expense of such testing shall be borne by the applicant or the applicant's agent.

C. The sustained yield of any water source shall be measured by bailing, pumping, air lifting, or by any manner that is generally accepted within the well-drilling industry. Determination of the sufficiency of such measurement and of the supporting records, however, shall rest solely with the director. If a water source cannot maintain a minimum sustained yield as referenced in Section 13.04.040, it shall not be considered an approved water source. Water sources may not be combined for the purpose of meeting the required minimum sustained yield.

(Ord. 1159 § 1 (part), 1999)

(Ord. No. 1374, § 3, 9-11-2012)

The provisions of this division shall first be satisfied at applicant's expense, before the issuance of a building permit for any new dwelling unit.

(Ord. 1159 § 1 (part), 1999)

An individual water supply system having a sustained yield of at least one gallon but less than five gallons per minute shall have a water storage tank installed. Each storage tank shall have a minimum capacity of three thousand gallons for each dwelling unit. Each application for a permit shall be accompanied by a fee established by the board of supervisors. The installation of the water storage tank cannot be made until after the director approves the installation and issues a permit for the installation.

(Ord. 1159 § 1 (part), 1999)

(Ord. No. 1374, § 4, 9-11-2012)

Nothing in this division is intended to supersede the requirements of any applicable uniform building code or other statute, ordinance or regulation of any agency of government having superior or concurrent jurisdiction. In case of discrepancy between the requirements of this division and any other applicable standards, the stricter standard shall be observed.

(Ord. 1159 § 1 (part), 1999)