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BYRON LAKE -- YAKIMA COUNTY: 1994

Byron Lake is located 4.25 miles south of Grandview. It drains to the Yakima River. Byron Lake was monitored by Ecology staff only.

Size (acres)                          16
Maximum Depth (feet)                   6
Mean Depth (feet)                      0
Lake Volume (acre-feet)                0
Drainage Area (square miles)    N/A     
Altitude (feet)                      700
Shoreline Length (miles)             1.3

Contour Map

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
94/05/16                                 0                  0.8     0.0  BASIN LAKE
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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
94/05/16       E     451J       2.50       69.0           21        13       50.0                                
94/08/15       E     415J       1.67J       114J                             60.0                                
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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 BYRON (YAKIMA) in 1994


TROPHIC STATUS
Estimated Trophic State:                                 Not Available
Mean Trophic State Index (Secchi):                       0 (Not assessed)
Mean Trophic State Index (Total Phosphorus):             91J* (Eutrophic)
Mean Trophic State Index (Chlorophyll a):                75J* (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

No summary analysis was performed for BYRON (YAKIMA) in 1994


AQUATIC PLANT LIST  (This list may be from multiple years and sources.)
Lythrum salicaria (purple loosestrife)  Myriophyllum spicatum (Eurasian
water-milfoil)

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

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