TRAILS END LAKE -- MASON COUNTY: 1997

Trails End Lake is located 5.5 miles southwest of Belfair. It has no surface inlets, and drains via Sherwood Creek to North Bay. Trails End Lake is also referred to as Prickett Lake.

Size (acres)                          74
Maximum Depth (feet)                  30
Mean Depth (feet)                     13
Lake Volume (acre-feet)              962
Drainage Area (square miles)        0.39
Altitude (feet)                      301
Shoreline Length (miles)             1.7

Contour Map

Source of morphometric data: Water Supply Bulletins 42, 43, and 57.


VOLUNTEER-COLLECTED SECCHI DATA
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Date      Temperature      Water      %Cloud Recent        Secchi Lake  
(Y/M/D)    (C)   (F)  pH   Color      Cover  Rain   Wind   (ft)   Ht(in) Abbrev. Comments
________________________________________________________________________________________________________________________
        STATION 1
97/09/01                   Lt Green     50   None          17.5     0.0  
97/09/19  18.9  66.0       Lt Green     75   Heavy  Light  14.0     0.0  LAKE 13 INCHES HIGHER THAN LAST YEAR.
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LABORATORY RESULTS
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                    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
97/05/28       E       7                                                                                         
97/05/28       H      16                                                                                         
97/09/01       E       6        0.26        1.0                                                                  
97/09/01       H       6        0.23                                                                             
        STATION 2
97/09/01       E       4        0.22        1.4                                                                  
        STATION 2
97/09/01       E                            1.4                                                                  
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E=epilimnion composite, H=hypolimnion composite.  Remarks codes: U = Below detection limits; J = Estimate.


SUMMARY OF VOLUNTEER SURVEY

WATER QUALITY-----------------------------------------------------------------------
Overall water quality was fair.  The worst problems were reported as: 
     1. excessive aquatic plants   2. high water levels   3. fluctuating water levels
Sources of actual or potential problems includes: 
     UNCONTROLLED LILYPAD GROWTHS, BEAVER DAMS KEEPING THE LAKE TOO HIGH.  EXCESSIVE
     PEAT ON THE BOTTOM OF SOUTH END OF THE LAKE.  UP TO 8 FEET DEEP.
Were there days (and how many) when poor water quality impaired
      Fishing - NO(0)        Swimming - NO(0)        Aesthetics - NO(0) 
MANAGEMENT--------------------------------------------------------------------------
Did the lake receive chemical treatments this year?                NO
Were fish stocked this year?                                       YES
Any lake groups present (such as a lake association)?              YES
Any lake management activities this year?                          NO
OTHER-------------------------------------------------------------------------------
How many homes/new homes are there on the lake shore?~ 70             
Changes since last year? A FEW LOTS ARE CLEARD FOR NEW HOMES. MOST ARE CLEAR CUT.

FIELD OBSERVATIONS OF ECOLOGY STAFF
5-28-97  The weir is still in but the beaver dam has been removed.  The water level
finally dropped.

TROPHIC STATUS
Estimated Trophic State:                                 Oligotrophic
Mean Trophic State Index (Secchi):                       37N* (Oligotrophic)
Mean Trophic State Index (Total Phosphorus):             26 (Oligotrophic)
Mean Trophic State Index (Chlorophyll a):                33 (Oligotrophic)

*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
Trails End is a very clear and clean lake.  All data and observations support an
oligotrophic assessment.

COMMENTS FROM 98/06/16 AQUATIC PLANT SURVEY
Partly cloudy, breeze.  Mostly bare sediment, organic matter over rocky sand.
Shoreline and emergent plants prevalent, but few submersed species.

AQUATIC PLANT LIST  (This list may be from multiple years and sources.)
Brasenia schreberi (watershield)  Dulichium arundinaceum (Dulichium)  
Isoetes sp. (quillwort)  Juncus sp. (rush)  Juncus sp. or Eleocharis
sp. (small grass-like plants)  Lobelia dortmanna (water gladiole; water
lobelia)  Ludwigia palustris (water-purslane)  Lythrum salicaria (purple
loosestrife)  Nymphaea odorata (fragrant waterlily)  Potamogeton sp (thin
leaved) (thin leaved pondweed)  Potentilla palustris (purple (marsh)
cinquefoil)  Utricularia inflata (big floating bladderwort)

Data collected and provided by Washington Department of Ecology's Lake Monitoring Program (Maggie Bell-McKinnon, phone 360- 407-6124).

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