Boulder River Wilderness Air Quality Report Wilderness ID: 227 Wilderness Name: Boulder River Wilderness

Boulder River Wilderness Air Quality Report National Forest: Mount Baker National Forest State: WA Counties: Snohomish General Location: Northern Acres: 49,343

Thursday, May 17, 2012 Page 1 of 4 Boulder River Wilderness Air Quality Report Wilderness ID: 227 Wilderness Name: Boulder River Wilderness

Wilderness Categories Information Specific to this Wilderness Year Established 1984 Establishment Notes Washington State Wilderness Act of 1984 Designation Clean Air Act Class 2 Administrative Mount Baker-Snoqualmie National Forest Unique Landscape Features Not Reported Lakebed Geology Sensitivity Low Lakebed Geology Composition gneiss quartzite schist granite (20%), andesite dacite diorite phylite (32%), basalt gabbro wacke argillite undifferentiated volcanic rocks (1%), amphibolite hornfels paragneiss undifferentiated metamorphic roc (34%), Unknown buffering capacity (14%), GC 1+2 (51%), GC 1+2+3 (53%), GC 4+5+6 (47%) Visitor Use Not Reported Mean Annual Precipitation Not Reported Elevation Range 213 - 2074 (meters) Mean Max Aug Temp Not Reported Mean Min Dec Temp Not Reported Lake Acres 39 Pond Acres 25 Lake Count 2 Pond Count 11 TES Flora Fritillaria camschatcensis, Hypogymnia duplicata, Lobaria linita, Platanthera chorisiana, Platanthera orbiculata, Pseudocyphellaria rainierensis, Rhizomnium nudum TES Wildlife Gray Wolf TES Fish chinook salmon, steelhead Ozone Sensitive Plants Not Reported Air Quality Sensitive Lichens Alectoria sarmentosa, Cavernularia hultenii, Hypogymnia apinnata, Parmelia pseudosulcata, Parmeliopsis ambigua, Parmeliopsis hyperopta, Platismatia norvegica, Sticta fuliginosa Cultural Resources Not Reported Status/Trends: Acid Deposition: Not Reported Status/Trends: Nutrient Not Reported Enrichment: Status/Trends: Ozone Impacts: Not Reported

AQRV's Fauna Fauna Priority: Not Reported Fauna Receptor: Fish Fauna Indicator: Concentration of methyl mercury

Thursday, May 17, 2012 Page 2 of 4 Boulder River Wilderness Air Quality Report Wilderness ID: 227 Wilderness Name: Boulder River Wilderness

Fauna Trends: Not Reported Fauna Actions: Not Reported. Flora Flora Priority: High Flora Receptor: Lichens Flora Indicator: Changes in community composition Flora Trends: Not Reported Flora Priority 2: High Flora Receptor 2: Lichens Flora Indicator 2: Concentrations of N, S, P, Cd, Cr, Pb, Hg, Ni, Ti, V and Zn Flora Trends 2: Not Reported Flora Priority 3: Not Reported Flora Receptor 3: Ozone Flora Indicator 3: Visible injury on ozone-sensitive plants Flora Trends 3: Not Reported Flora Actions: Increase plot density to obtain at least 1 plot/20,000 acres. Conduct repeat visits to plots every 10 years to monitor trends. Survey vegetation during site visits for ozone sensitive species listed in Table 5-2. Update this report, accordingly. Visibility Visibility Priority: Medium Visibility Receptor: Scenic Views Visibility Indicator: Regional haze Visibility Trends: Not Reported Visibility Actions Review IMPROVE reports to understand causes of haze and trends at Snoqualmie Pass and NP, assumed to be representative of this wilderness. Water Water Priority: High Water Receptor: Water Chemistry Water Indicator: ANC Water Trends: Not Reported Water Priority 2: High Water Receptor 2: Water Chemistry Water Indicator 2: DIN: TP Water Trends 2: Not Reported Water Priority 3: Not Reported Water Receptor 3: Diatoms Water Indicator 3: Community Composition Water Trends 3: Not Reported Water Actions: Repeat visit to Saddle Lake for ANC and nutrient ratios. Identify N-limited waters. Challenge Points

Thursday, May 17, 2012 Page 3 of 4 Boulder River Wilderness Air Quality Report Wilderness ID: 227 Wilderness Name: Boulder River Wilderness

Fauna Challenge Points: Not Reported Flora Challenge Points: 5 Total Plots: 2 Desired Plots: 2 Additional Plots Needed: 0 Data Type: Baseline Round 1 Visits: 0 Round 2 Visits: 2 Baseline %: 100 Trends %: 0 Visibility Challenge Points: Not Reported Water Challenge Points: 7

Thursday, May 17, 2012 Page 4 of 4