APPENDIX B: PONDS AND LAKES

Class I ponds and lakes are those inventoried and regulated under Title 20 Skamania County Code as shorelines of the state.

Segments of natural waters which are not classified as Class I Ponds and Lakes and have a high fish, wildlife or human use. These segments of natural waters and periodically inundated areas of their associated wetlands, which:

a) Are diverted for domestic use by more than 100 residential or camping units or by a public accommodation facility licensed to serve more than 100 persons, where such diversion is determined by the County to be a valid appropriation of water and the only practical water source for such users. Such waters shall be considered to be Class II Water upstream from the point of such diversion for 1,500 feet or until the drainage area is reduced by 50%, whichever is less;

b) Are within federal, state, local or private campgrounds having more than 30 camping units; provided, that the water shall not be considered to enter a campground until it reaches the boundary of the park lands available for public use and comes within 100 feet of a camping unit, trail or other park improvement;

c) Are used by substantial numbers of anadromous or resident game fish for spawning, rearing or migration. Waters having the following characteristics are presumed to have highly significant fish populations:

i) Stream segments having a defined channel 20 feet or greater in width between the ordinary high water marks and having a gradient of less than 4 percent;

ii) Lakes, ponds or impoundments having a surface area of 1 acre or greater at seasonal low water.

d) Areas used by salmonids for off-channel habitat. These areas are critical to the maintenance of optimum survival of juvenile salmonids. This habitat shall be identified based on the following criteria:

i) The site must be connected to a stream bearing salmonids and accessible during some period of the year; and

ii) The off-channel water must be accessible to juvenile salmonids through a drainage with less than a 5% gradient.

Segments of natural waters which are not classified as Class I or II Ponds or Lakes and have a moderate to slight fish, wildlife, and human use. These are segments of natural waters and periodically inundated areas or their associated wetlands which:

PONDS AND LAKES (continued)

a) Are diverted for domestic use by more than 10 residential or camping units or by a public accommodation facility licensed to serve more than 10 persons, where such diversion is determined by the Department to be a valid appropriation of water and the only practical water source for such users. Such waters shall be considered to be Class III Water upstream from the point of such diversion for 1,500 feet or until the drainage area is reduced by 50%, whichever is less;

b) Are used by significant numbers of anadromous fish for spawning, rearing or migration. Waters having the following characteristics are presumed to have significant anadromous fish use:

i) Stream segments having a defined channel of 5 feet or greater in width between the ordinary high water marks; and having a gradient of less than 12 percent and not upstream of a falls of more than 10 vertical feet;

ii) Ponds or impoundments having a surface area of less than 1 acre at seasonal low water and having an outlet to an anadromous fish stream.

c) Are used by significant numbers of resident game fish. Waters with the following characteristics are presumed to have significant resident game fish use:

i) Stream segments having a defined channel of 10 feet or greater in width between the ordinary high water marks; and a summer low flow greater than 0.3 cubic feet per second; and a gradient of less than 12 percent;

ii) Ponds or impoundments having a surface area greater than 0.5 acre at seasonal low water.

d) Are highly significant for protection of downstream water quality. Tributaries which contribute greater than 20% of the flow to a Class I or II Water are presumed to be significant for 1,500 feet from their confluence with the Class I or II Water or until their drainage area is less than 50% of their drainage area at the point of confluence, whichever is less.

Consist of those segments of natural waters which are not classified as Class I, II or III and for the purpose of protecting water quality downstream are classified as Class IV upstream until the channel width becomes less than two feet in width between the ordinary high water marks. Their significance lies in their influence on water quality downstream in Class I, II and III waters. Class IV waters may be intermittent.

Consist of all natural waters not classified as Class I, II, III or IV, including streams with or without well-defined channels, areas of perennial or intermittent seepage, ponds, natural sinks and drainageways having short periods of spring or storm runoff.

APPENDIX C: STREAMS, CREEKS AND RIVERS

STREAMS, CREEKS AND RIVERS

Class I streams, creeks and rivers are those inventoried and regulated under Title 20 Skamania County Code as shorelines of the state.

Class II and Class III

Class II and Class III streams, creeks and rivers are those which meet the criteria set out in SECTION 21A.04.020(B)(6) of this chapter for Class II and III Waters.

PONDS AND LAKES
Class I	Class I ponds and lakes are those inventoried and regulated under Title 20 Skamania County Code as shorelines of the state.
Class II	Segments of natural waters which are not classified as Class I Ponds and Lakes and have a high fish, wildlife or human use. These segments of natural waters and periodically inundated areas of their associated wetlands, which:
	a) Are diverted for domestic use by more than 100 residential or camping units or by a public accommodation facility licensed to serve more than 100 persons, where such diversion is determined by the County to be a valid appropriation of water and the only practical water source for such users. Such waters shall be considered to be Class II Water upstream from the point of such diversion for 1,500 feet or until the drainage area is reduced by 50%, whichever is less;
	b) Are within federal, state, local or private campgrounds having more than 30 camping units; provided, that the water shall not be considered to enter a campground until it reaches the boundary of the park lands available for public use and comes within 100 feet of a camping unit, trail or other park improvement;
	c) Are used by substantial numbers of anadromous or resident game fish for spawning, rearing or migration. Waters having the following characteristics are presumed to have highly significant fish populations:
	i) Stream segments having a defined channel 20 feet or greater in width between the ordinary high water marks and having a gradient of less than 4 percent;
	ii) Lakes, ponds or impoundments having a surface area of 1 acre or greater at seasonal low water.
	d) Areas used by salmonids for off-channel habitat. These areas are critical to the maintenance of optimum survival of juvenile salmonids. This habitat shall be identified based on the following criteria:
	i) The site must be connected to a stream bearing salmonids and accessible during some period of the year; and
	ii) The off-channel water must be accessible to juvenile salmonids through a drainage with less than a 5% gradient.
Class III	Segments of natural waters which are not classified as Class I or II Ponds or Lakes and have a moderate to slight fish, wildlife, and human use. These are segments of natural waters and periodically inundated areas or their associated wetlands which: