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LONG LAKE -- KITSAP COUNTY: 1997

Long Lake is located 3.5 miles southeast of Port Orchard. It is two miles long. The lake is fed principally by Salmonberry Creek, and drains via Curley Creek to Yukon Harbor.

Size (acres)                         339
Maximum Depth (feet)                  12
Mean Depth (feet)                      6
Lake Volume (acre-feet)             2034
Drainage Area (square miles)        9.36
Altitude (feet)                      118
Shoreline Length (miles)             5.1

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
97/08/26                   Pea-green   100   None           4.0     0.0  
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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
97/05/22       E      27        0.43                                                                             
97/08/26       E      37        0.50       23.4                                                                  
        STATION 2
97/05/22       E      34        0.46                                                                             
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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 excellent.  The worst problems were reported as: 
     1. excessive aquatic plants   2. algae
Sources of actual or potential problems includes: 
     EXCESSIVE AQUATIC PLANT GROWTH.
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?                                       NO
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?                
Changes since last year? LOTS OF NEW HOMES.

FIELD OBSERVATIONS OF ECOLOGY STAFF
5-22-97  Lots of Daphnia in water samples.

8-26-97  Hundreds of barn swallows flying over the water.

TROPHIC STATUS
Estimated Trophic State:                                 Eutrophic
Mean Trophic State Index (Secchi):                       57N* (Eutrophic)
Mean Trophic State Index (Total Phosphorus):             56 (Eutrophic)
Mean Trophic State Index (Chlorophyll a):                61 (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
Long Lake is a very productive lake.  All observations and TSI values support an
eutrophic assessment.

COMMENTS FROM 97/08/28 AQUATIC PLANT SURVEY
Partly sunny, breeze.  Met with Stuart, Heather & Leslie (?) from Kitsap Co to go over
plant ID.  Went to south and north ends.  Didn't spend time or survey in between.
Water very turbid, plants not growing very deep.

AQUATIC PLANT LIST  (This list may be from multiple years and sources.)
Brasenia schreberi (watershield)  Callitriche sp. (water-starwort)  
Ceratophyllum demersum (Coontail; hornwort)  Chara sp. (muskwort)  
Egeria densa (Brazilian elodea)  Eleocharis sp. (spike-rush)  Elodea
canadensis (common elodea)  Epilobium sp. (willow herb)  Equisetum
sp. (horse tail)  Hydrocotyle ranunculoides (water-pennywort)  Iris
pseudacorus (yellow flag)  Limosella acaulis (mudwort)  Lythrum
salicaria (purple loosestrife)  Myriophyllum spicatum (Eurasian
water-milfoil)  Nitella sp. (stonewort)  Nuphar polysepala 
(spatter-dock, yellow water-lily)  Nuphar sp. (yellow water-lily)  Nymphaea
odorata (fragrant waterlily)  Nymphaea sp. (water lily)  Polygonum
hydropiperoides (common smartweed)  Potamogeton amplifolius (large-leaf
pondweed)  Potamogeton crispus (curly leaf pondweed)  Potamogeton
foliosus (leafy pondweed)  Potamogeton illinoensis (Illinois pondweed)  
Potamogeton natans (floating leaf pondweed)  Potamogeton praelongus 
(whitestem pondweed)  Potamogeton pusillus (slender pondweed)  Potamogeton
sp (thin leaved) (thin leaved pondweed)  Potamogeton zosteriformis 
(eel-grass pondweed)  Scirpus sp. (bulrush)  Typha sp. (cat-tail)  
Utricularia sp. (bladderwort)  unknown plant (unknown)

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

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