FIGURE 1: Project Area Vicinity Map (source: Google Maps) LAKE

LAKE LIMERICK
FIGURE 1: Project Area Vicinity Map (source: Google Maps)
LAKE LIMERICK
CRANBERRY CREEK
FIGURE 2: Cranberry Creek Map (Source: WDOE WRIA 14 MAP)
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3
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FIGURE 3:
GENERAL PROJECT AREA MAP
1: Cranberry Cove Dredge Area
dam
2: Kings Cove Dredge Area
3: Dewatering Area (Log Toy Park)
Kings Cove
Possible Cranberry Cove floating pump line route
Possible Kings Cove floating pump line route
Cranberry Cove
Possible boat crossing
of pipeline
FIGURE 4:
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•
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Zoomed View of General Project Area Map
Cranberry Cove Dredge Area
Kings Cove Dredge Area
Dewatering Area (Log Toy Park)
Floating Pump Lines (possible routes)
Submerged pump line possible crossing site for boat traffic
Dewatering Area
Beaver Creek
Leprechaun
Creek
Beaver Inlet
Cranberry
Inlet
KIngs
Cove
Un-Named Creek
Cranberry Cove
Cranberry
Creek
FIGURE 5 :
Creeks, Coves and Inlets Location Map
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5
3
2
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FIGURE 6:
DNR FPARS MAP (WATER TYPE MAP)……INACCURACY CORRECTED
(1) Cranberry Creek Mouth (Type S)
(2) Incorrectly mapped Leprechaun Creek Mouth
(3) Leprechaun Creek Mouth correct site (Type F) (4) Beaver Creek Mouth (Type F)
(5) Un-named Creek Mouth (should be Type S)
(6) Lake Limerick : Type S
Kings Cove
Cranberry
Cove
FIGURE 7: Lake Limerick Bathymetry (source: WDOE).
All dredge areas less than 10 feet water depth and most under 7 feet.
CRANBERRY COVE DREDGE AREA
• General dredging: YELLOW
• Gravel Delta Exclusion Area: RED
• Turbidity Curtain: BLUE
Upstream Dredge
boundary detail see
GPS points in Figure 9
FIGURE 8: Cranberry Cove General Dredge Area
FIGURE 9: Dredging Boundary Upstream Limit Cranberry Creek --- Detailed View
(Map courtesy of the Squaxin Island Tribe: 2015; Geographic Coordinate System WGS 84)
KINGS COVE DREDGE AREA
• Upstream Dredge Limit: WDFW and SIT
approved on site (28 Jan 2015): ORANGE
• General dredging: YELLOW
• Gravel Delta Exclusion Area: RED
• Turbidity Curtain: BLUE
FIGURE 10: Kings Cove Dredge Area
FIGURE 11: Dewatering Site Footprint (LLCC owned Log Toy Park Recreation Area)
Operations fit among existing features: between trees, pavilion , on lawn and driveway and cleared surfaces.
FIGURE 12: BMP – Turbidity Curtain Deployment Sample
FIGURE 13: BMP – GEO BAG SEDIMENT DEWATER CAPTURE SAMPLE
FIGURE 14 : BMP – Silt Fence Sample
FIGURE 15: BMP CONTINGENCY – SPILL CONTROL - SAMPLE OIL / FUEL
SPILL ABSORBTION BOOM AND ABSORBTION FABRIC
FIGURE 16: PHOTOGRAPH OF DREDGE UNDER OPERATION (Deployed
Turbidity Curtain Not Shown)
Cranberry Inlet
Re-vegetate understory with native species shrubs, ground cover and trees.
(Plan developed during on site meeting with WDFW and SIT)
FIGURE 17: Riparian Shoreline Mitigation Site.
Tax Parcel: 32122-50-00003. 1002 ST Andrews Drive East
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Proposed Riparian Buffer Habitat Enhancements:
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Kill English Ivy that dominates understory
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Fall dead conifer trees. Leave one partial trunk as snag
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Place trunks in wetted channel of Cranberry Inlet: Yellow logs
Figure 18: SEDIMENT ANALYSIS LAB WORK OVERVIEW
Physical and chemical analysis of planned dredge bio-muck sediments was performed.
Recommended test parameters were provided by the interagency staff of the Dredge Materials
Management Program (DMMP). Agencies represented include:
• WA State Dept of Ecology (WDOE)
• WA State Dept of Natural Resources (WDNR)
• United States Environmental Protection Agency (EPA)
• United States Army Corps of Engineers (USACE)
Sediment evaluations included:
• Physical:
• Grain size distribution: to inform turbidity control BMP’s
• Percent solids / liquid: inform dewatering operations
• Chemical
• Total Organic Carbon: Quantity dead plant matter in sediments.
• Residues from aquatic weed control herbicides and other watershed runoff
• Glyphosate: Not able to test. Rapid degradation.
• 2-4-D: From forest land. Tested. None detected.
• Sonor / Floridone: (Aquatic weed control). Minor concentrations. Stable.
• Dyquat: (Aquatic weed control). Extreme binding affinity to sediments. Lab can
not extract. Residue does not exhibit phytotoxic effects.
• Orthophosphorus: Available phosphorus in sediment for release to potential algal
bloom or plant growth from the return flow of dewatered biomuck. Lab results in
progress. Results will inform choice of dewatering flocculent BMP.
LAB TEST RESULTS FOLLOW BELOW.
FIGURE: LAB-1 - Sediment grain size distribution
FIGURE: LAB-2 - Sediment grain size distribution
FIGURE: LAB-3 - Sediment grain size distribution
FIGURE: LAB-4 - Sediment grain size distribution
FIGURE LAB – 5:
Total Organic Carbon (TOC); Percent Solids / Water; Grain Size Distribution
FIGURE LAB – 6:
Total Organic Carbon (TOC); Percent Solids / Water; Grain Size Distribution
FIGURE LAB – 7:
Herbicide Residues 2-4-D and Fluridone
FIGURE LAB – 8:
Herbicide Residues 2-4-D and Fluridone
FIGURE LAB – 9:
Herbicide Residues 2-4-D and Fluridone