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Lake Limerick is located about five miles northeast of Shelton. It was formed in 1966 by impoundment of Cranberry Creek. Lake Limerick is fed mainly by Cranberry Creek, as well as three other minor inlets.
Size (acres) 129 Maximum Depth (feet) 24 Mean Depth (feet) 9 Lake Volume (acre-feet) 1161 Drainage Area (square miles) 13.00 Altitude (feet) 220 Shoreline Length (miles) 4.4
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 ________________________________________________________________________________________________________________________ STATION 1 97/05/17 18.9 66.0 Lt Brown 100 Light Calm 11.4B 15.0 97/06/10 21.1 70.0 6.5 Lt Brown 0 None Calm 13.3 180.5 97/07/11 21.1 70.0 6.5 Lt Brown 75 Trace Calm 10.4 15.0 97/07/22 22.2 72.0 7.0 Lt Brown 0 None Calm 9.0 11.0 97/08/05 25.6 78.1 6.5 Lt Brown 0 None Calm 9.2 9.5 97/08/19 22.2 72.0 6.5 Lt Brown 100 None Calm 6.0 8.0 97/09/01 Black 50 None Light 6.3 0.0 97/09/23 18.9 66.0 7.0 Lt Brown 0 None Calm 10.5 14.0 97/10/07 15.0 59.0 7.0 Lt Brown 100 None Calm 7.0 15.0 STATION 8 97/09/02 22.2 72.0 6.5 Lt Brown 0 Trace Calm 8.2 8.0 ________________________________________________________________________________________________________________________ B - Secchi disk hit bottom
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 97/05/27 E 8 0.15 97/09/01 E 14 0.23 7.3 97/09/01 H 30 0.47 STATION 2 97/05/27 E 9 0.13 97/09/01 E 15 0.23 ________________________________________________________________________________________________________________________ E=epilimnion composite, H=hypolimnion composite. Remarks codes: U = Below detection limits; J = Estimate.
SUMMARY OF VOLUNTEER SURVEY There was no survey response for 1997. FIELD OBSERVATIONS OF ECOLOGY STAFF 5-27-97 The lake was treated with SONAR the previous year. 9-1-97 H2S odor in the hypolimnion
TROPHIC STATUS Estimated Trophic State: Meso-eutrophic Mean Trophic State Index (Secchi): 44Y* (Mesotrophic) Mean Trophic State Index (Total Phosphorus): 43 (Mesotrophic) Mean Trophic State Index (Chlorophyll a): 50 (Meso-eutrophic) *The calculated TSI is an estimate. The Secchi disk hit bottom (B), entered the weeds (W), or there were too few valid readings (N), or the calculation was based on qualified data (J), or TSIP was based on spring data (S).
SUMMARY AND EXPLANATION OF TROPHIC STATE ASSESSMENT Lake Limerick is a very productive lake rich in aquatic macrophytes. Since it is a reservoir, the typical nutrient concentration expected in an eutrophic lake is not observed. DO concentrations are depleted only at the very bottom of the hypolimnion and the lake did not thermally stratify in 1997. All factors support a meso-eutrophic assessment.
COMMENTS FROM 98/07/08 AQUATIC PLANT SURVEY Partly cloudy, calm. Vegetation survey done for Dave Hallock. Bullfrog. Did not survey whole shoreline carefully. Patches of dense P. amplifolius, thin leaved pondweed, many aeas with much algae and few plants. Egeria densa found during snorlke at launch in water ~ 2 m deep, widely scattered small plants, at islands patchy, some dense growth Maximum depth of plant growth: 2.5M.
AQUATIC PLANT LIST (This list may be from multiple years and sources.) Alisma plantago-aquatica (American water-plantain) Brasenia schreberi (watershield) Callitriche stagnalis (pond water-starwort) Carex sp. (sedge) Chara sp. (muskwort) Dulichium arundinaceum (Dulichium) Egeria densa (Brazilian elodea) Eleocharis sp. (spike-rush) Elodea canadensis (common elodea) Equisetum sp. (horse tail) Isoetes sp. (quillwort) Juncus sp. (rush) Juncus sp. or Eleocharis sp. (small grass-like plants) Lemna minor (duckweed) Ludwigia palustris (water-purslane) Myriophyllum hippuroides (western watermilfoil) Najas flexilis (common naiad) Nitella sp. (stonewort) Nuphar polysepala (spatter-dock, yellow water-lily) Polygonum hydropiperoides (common smartweed) Potamogeton amplifolius (large-leaf pondweed) Potamogeton epihydrus (ribbonleaf pondweed) Potamogeton gramineus (grass-leaved pondweed) Potamogeton natans (floating leaf pondweed) Potamogeton robbinsii (fern leaf pondweed) Potamogeton sp (thin leaved) (thin leaved pondweed) Potamogeton sp (thin leaved) or Heteranthera dubia (thin leaved pondweed-like) Potamogeton zosteriformis (eel-grass pondweed) Potentilla palustris (purple (marsh) cinquefoil) Sparganium sp. (bur-reed) Typha sp. (cat-tail) Utricularia inflata (big floating bladderwort) Utricularia sp. (bladderwort) Vallisneria americana (water celery) unknown plant (unknown) unknown plant 2 (unknown)
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