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Diamond Lake is located about seven miles southwest of Newport, and six miles north of Camden. It has no surface inlets, and drains via Moon Creek to Sacheen Lake and the west branch of the Little Spokane River. Diamond Lake was monitored by Ecology staff only
Size (acres) 800 Maximum Depth (feet) 58 Mean Depth (feet) 27 Lake Volume (acre-feet) 21600 Drainage Area (square miles) 17.40 Altitude (feet) 2340 Shoreline Length (miles) 7.0
Source of morphometric data: Water Supply Bulletins 42, 43, and 57.
VOLUNTEER-COLLECTED SECCHI DATA ________________________________________________________________________________________________________________________ Date Temperature Water %Cloud Recent Secchi Lake (Y/M/D) (C) (F) pH Color Cover Rain Wind (ft) Ht(in) Abbrev. Comments ________________________________________________________________________________________________________________________ There are no Secchi data available for 1994. ________________________________________________________________________________________________________________________
LABORATORY RESULTS ________________________________________________________________________________________________________________________ Total Total Fecal Col. Bacteria Turb- Suspended Solids Phosphorus Nitrogen Chlorophyll (colonies/100 mL) idity Total Non-Volatile Color Date Strata (ug/L) (mg/L) (ug/L) Site 1 Site 2 (NTU) (mg/L) (mg/L) (Pt-Co) ________________________________________________________________________________________________________________________ STATION 1 94/05/20 E 12 0.27 1.0 94/05/20 H 12 0.23 94/08/19 E 13 0.32J 94/08/19 H 19 0.46J ________________________________________________________________________________________________________________________ E=epilimnion composite, H=hypolimnion composite. Remarks codes: U = Below detection limits; J = Estimate.
SUMMARY OF VOLUNTEER SURVEY There was no survey response for 1994. FIELD OBSERVATIONS OF ECOLOGY STAFF There were no field observations recorded for DIAMOND (PEND OREILLE) in 1994
TROPHIC STATUS Estimated Trophic State: Not Available Mean Trophic State Index (Secchi): 0 (Not assessed) Mean Trophic State Index (Total Phosphorus): 41 (Oligo-mesotrophic) Mean Trophic State Index (Chlorophyll a): 30 (Oligotrophic)
SUMMARY AND EXPLANATION OF TROPHIC STATE ASSESSMENT No summary analysis was performed for DIAMOND (PEND OREILLE) in 1994
COMMENTS FROM 97/08/11 AQUATIC PLANT SURVEY Patchy plant distribution, many areas with rocky or sandy or loose bottom sediment and no plants. Only surveyed part of lake; boatlaunch on south shore and wetland area due to limited time, motored rapidly through most of the area.
AQUATIC PLANT LIST (This list may be from multiple years and sources.) Brasenia schreberi (watershield) Carex sp. (sedge) Chara sp. (muskwort) Dulichium arundinaceum (Dulichium) Elodea canadensis (common elodea) Glyceria sp. (mannagrass) Iris pseudacorus (yellow flag) Juncus acuminatus (tapered rush) Myosotis laxa (small flowered forget-me-not) Myriophyllum spicatum (Eurasian water-milfoil) Najas flexilis (common naiad) Nuphar polysepala (spatter-dock, yellow water-lily) Nymphaea odorata (fragrant waterlily) Phalaris arundinacia (reed canarygrass) Potamogeton amplifolius (large-leaf pondweed) Potamogeton gramineus (grass-leaved pondweed) Potamogeton praelongus (whitestem pondweed) Potamogeton robbinsii (fern leaf pondweed) Potamogeton sp (thin leaved) (thin leaved pondweed) Scirpus americanus (american bulrush) Scirpus sp. (bulrush) Typha latifolia (common cat-tail) Utricularia minor (lesser bladderwort)
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