§ 20.40.050. Alternate onsite wastewater treatment and disposal.

A.

If any lots within a subdivision will employ alternate onsite wastewater treatment and disposal, the following requirements must be met and submitted to the planning director:

1.

A soils analysis and report, prepared and sealed by a qualified engineer containing sufficient soils data to:

a.

Demonstrate that a conventional onsite soil absorption system is not practicable; and

b.

Support the functional use of the proposed system;

2.

A pollution abatement report, sealed by a qualified engineer, meeting the requirements of KPB 20.40.090 if:

a.

Disposal of wastewater to onsite soils is proposed;

b.

The subdivision's minimum lot size is less than 40,000 square feet; and

c.

There will not be a public water system serving the lots of the subdivision, as set out in KPB 20.40.090(C);

3.

Plans for a treatment and disposal system for each lot (or a single typical design for each group of identical systems), as required by 18 AAC 72.205. The plans must be sealed by a qualified engineer;

4.

An adequate demonstration that a conventional onsite soil absorption system, collector wastewater or collector system and treatment disposal system, individual lot treatment system, or connection to an existing system are not practicable due to either lack of suitable soils or economic considerations;

5.

Evidence that separation distances set out in 18 AAC 72.020 will be met; if an area outside the subdivision boundary cannot be visually inspected to determine existence and position of water system sources, the subdivider may use existing records as the basis for this information; and

6.

Evidence that lots with a minimum size of less than 40,000 square feet for which a pollution abatement report is required meet the requirements of KPB 20.40.090(B).

B.

Before a final plat is filed for subdivision, the engineer must sign the following note on the final plat:

WASTEWATER DISPOSAL: Soil conditions in this subdivision have been found unsuitable for conventional onsite wastewater treatment and disposal systems. Plans showing a suitable alternate wastewater disposal system that could be used on lots in this subdivision are included in the Engineer's Subdivision and Soils Report and are available from the Kenai Peninsula Borough. All alternate onsite wastewater treatment and disposal systems must be designed for the specific installation by a qualified engineer registered to practice in Alaska, and the design must be approved by the Alaska Department of Environmental Conservation prior to construction.

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(Signature of) Engineer   License #   Date

( Ord. No. 2014-02, § 1, 2-11-14 )