EXH0113017890

173-201A-040 Title 173 WAC: Ecology, Department of Cascades Ecoreffon: ..... Trophic State If Ambient TP (l_g/l) Then criteria Range of Lake is: should be set at: Ulua-oligotrophic 0-4 4 or less Oligotrophic >4-10 I0 or less Actionvalue ". >I0 .... lakespecificstudymay beinitiated. Columbia Basin Ecore_ion: Trophic State If Ambient TP (gg/l) Then criteria Range of Lake is: should be set at: Ullra-oligotmphic 0-4 4 or less Oiigotrophic >4-10 10 or less Lower mesotrophic >I 0-20 20 or less Upper mesotrophic >20-35 35 or less Action value >35 .... lake specific study may be initiated. Lakes in the Willamette, East Cascade Foothills, or Blue technical informationand stakeholder input as part of a pub- Mountain ecoregions do not have recommended values and lic involvement processequivalent to the Administrative Pro- need to have lake-specific studies in order to receive criteria cedure Act (chapter34.05 RCW). as described in (c)(i) of this subsection. (iii) Determine if the proposed total phosphorus criteria (b) The following actions arc recommended if ambient necessary m protect characteristic uses is achievable. If the monitoring of a lake shows the epilimnetic total phosphorus recommendedcriterionis not achievable and if the character- concentration, as shown in Table 1 of this section, is below istic use thecriterion is intended to protect is not an existing the action value for an ecoreg/on: use, thena highercriterion may be proposed in conformance (i) Determine u'ophicstatus fromexisting or newly gath- with _ CFR part 131.10. ered data. The recommended minimum sampling to deter- (d) The department will consider…

Open full document

Upcoming Events

PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]