§ 18.108.080. Agricultural erosion control plans—Requirements and authorization to prepare—Field modifications.

A.

Submission of Plan. Five sets of each erosion control plan shall be submitted to the director. The plans shall be drawn to scale and shall be of sufficient clarity to indicate the nature and extent of the work proposed.

B.

Contents. The erosion control plan shall contain the information and be prepared in accordance with the format in Resolution No. 94-19, which is incorporated herein by reference.

C.

Conformance With Guidelines. To the extent relevant to the activity proposed, the erosion control plan shall substantially conform to the guidelines contained in the excerpts from the Hillside Vineyard Unit Redwood Empire Target Area Manual (Soil Conservation Service/Napa County Resource Conservation District, 1985) and the most current Manual of Standards for Erosion and Sediment Control Measures (published by the Association of Bay Area Governments), which are incorporated herein by reference.

D.

Persons Authorized to Prepare Plans. The erosion control plan shall be prepared only by the following persons:

1.

[Reserved.]

2.

Agricultural Projects.

a.

Vineyard replant projects-erosion control plans shall be prepared by one of the following:

i.

Erosion control plans prepared by any of the following persons are subject to review by the county and/or county's consultant:

(A)

A certified professional in soil erosion and sediment control specialist (CPESC), or an NRCA employee working under the direction of a CPESC;

(B)

A licensed civil engineer;

(C)

A registered professional forester (RPF);

(D)

A licensed landscape architect;

(E)

A certified engineering geologist; or

(F)

A licensed architect.

ii.

Any persons on a pre-qualified list of consultants made available by the county with no technical review of plan by the county or county's consultant.

b.

All other agricultural development projects-erosion control plans shall be prepared by one or more of the persons designated in subsection (D)(2)(a)(i) of this section, all subject to review by the county and/or county's consultant.

E.

Field Modifications. Subsequent to approval/confirmation of the erosion control plan, the director or in the case where subsection (D)(2)(a)(ii) of this section is used, then the consultant may require field adjustments to the plan to address site-specific issues or field conditions which arose after the commencement of the activity. Such field modifications shall be confirmed in writing by the director or in the case where subsection (D)(2)(a)(ii) of this section is used by the consultant (with a copy to the director) and when so confirmed shall be deemed to be incorporated into the approved plan.

F.

Field Modifications. Subsequent to approval/confirmation of the erosion control plan, the permittee may request a field adjustment to the plan to address site-specific issues or field conditions which arose after the commencement of the activity. The permittee shall be responsible to contact the director, or in the case where subsection (D)(2)(a)(ii) of this section is used, the consultant, within twenty-four hours of the changed field condition. Changes, as deemed appropriate by the director, or in the case where subsection (D)(2)(a)(ii) of this section is used, the consultant, shall be confirmed in writing and deemed incorporated into the approved plan.

G.

No permit for activities conducted pursuant to this chapter shall be issued by the director until the erosion control plan required by this section has been approved by the director, unless the erosion control plan was prepared according to subsection (D)(2)(a)(ii) of this section where no approval is required.

(Ord. 1259 § 9, 2005: Ord. 1062 § 8, 1994; Ord. 991 § 1 (part), 1991: prior code § 12455)

(Ord. No. 1370, § 42, 3-20-2012; Ord. No. 1379, § 169, 1-29-2013; Ord. No. 1438, § 12, 4-9-2019)