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Size (acres) 170 Maximum Depth (feet) 25 Mean Depth (feet) 19 Lake Volume (acre-feet) 3230 Drainage Area (square miles) 2.61 Altitude (feet) 518 Shoreline Length (miles) 2.7
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 1996. ________________________________________________________________________________________________________________________
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 96/09/12 E 178 1.10 4.8 ________________________________________________________________________________________________________________________ E=epilimnion composite, H=hypolimnion composite. Remarks codes: U = Below detection limits; J = Estimate.
SUMMARY OF VOLUNTEER SURVEY WATER QUALITY----------------------------------------------------------------------- Overall water quality was good. The worst problems were reported as: 1. algae Sources of actual or potential problems includes: BLUE GREEN ALGAE BLOOMS & AQUADIC WEED GROWTH Were there days (and how many) when poor water quality impaired Fishing - NO(0) Swimming - NO(0) Aesthetics - YES(10) MANAGEMENT-------------------------------------------------------------------------- Did the lake receive chemical treatments this year? YES Were fish stocked this year? YES Any lake groups present (such as a lake association)? NO Any lake management activities this year? YES OTHER------------------------------------------------------------------------------- How many homes/new homes are there on the lake shore? 42 Changes since last year? NO Lake Uses and Facilities at the lake include: swimming fishing motor boating picnic facilities The percent of the lakeshore that is sewered: 0 The number of storm drains leading to the lake: N Motor boat restrictions include: 5 mph speed restriction.
FIELD OBSERVATIONS OF ECOLOGY STAFF Numerous fish fry (1000s) were observed at the boat launch. There was a recent Chironomid hatch as several exuvia were observed floating on the lake's surface. There was a brilliant blue-green algae bloom. Iris pseudacorus observed along the shoreline.
TROPHIC STATUS Estimated Trophic State: Eutrophic Mean Trophic State Index (Secchi): 39N* (Oligo-mesotrophic) Mean Trophic State Index (Total Phosphorus): 79 (Eutrophic) Mean Trophic State Index (Chlorophyll a): 46 (Mesotrophic) *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 Clear Lake was only sampled once during 1996. The volunteer was no longer active on the lake. Clear Lake is classified as eutrophic. Phosphorous concentrations were considerably high and oxygen concentrations were extremely low throughout the water column.
COMMENTS FROM 95/10/05 AQUATIC PLANT SURVEY Visited to look for Ranunculus - found but not blooming.
AQUATIC PLANT LIST (This list may be from multiple years and sources.) Elodea canadensis (common elodea) Elodea sp. (waterweed) Iris pseudacorus (yellow flag) Potamogeton praelongus (whitestem pondweed)
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