Lake Water Quality 2006 Report - Lakefield Herald

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Stony and Upper Stoney: phosphorus levels drop• Up to this point, the water flowing downstream has seen gradually increasingphosphorus levels. However, this trend reverses in Stony Lake, which has midsummerphosphorus levels about 8 ppb lower than Lovesick Lake. This is almostcertainly due to water flowing into Stony Lake from Upper Stoney. UpperStoney receives all of its water from the north through Eel’s Creek and Jack’sCreek. This low-phosphorus water then flows into Stony Lake, loweringphosphorus levels. South Bay in Upper Stoney has somewhat higher phosphoruslevels, as it is shallow and has fairly low circulation.Clear and Katchewanooka: phosphorus levels rise slightly• As the water flows through the last of the chain of Kawartha Lakes, levelsincrease slightly in Clear Lake and again in Katchewanooka Lake.White Lake: inexplicably low phosphorus levels• White Lake receives its water directly from Gilchrist Bay in Stony Lake. Onewould expect phosphorus levels to rise in White Lake because it is shallow andfairly silty with a very developed shoreline. However, for the third year in arow, White Lake has phosphorus levels below those of Gilchrist Bay.Interestingly, for three years now phosphorus levels have dropped betweenJuly 1 and August 1, a trend not observed over several years on any other KLSAlake. What keeps phosphorus levels low in White Lake?Sandy Lake and Julian Lake: marl lakes• Both these lakes have extremely low phosphorus levels. This is probably due toinputs from relatively low-phosphorus spring water and a characteristicchemistry that leaches phosphorus out of the lake and binds it into thesediments. For a more thorough discussion, please see KLSA Report 2005.22
Low Phosphorus Lakes35.0030.0025.00TP, ppb (ug/L)20.0015.0010.005.000.001-May-06 31-May-06 30-Jun-06 30-Jul-06 29-Aug-06 28-Sep-06Upper Stoney: Quarry Bay Upper Stoney: mid-lake Upper Stoney: Young BayUpper Stoney: S. Bay Upper Stoney: Crowe's Ldg. Balsam L: Lightning Pt.Balsam L: Killarney Bay Big Bald L: mid-lake Big Bald L: bay near golf courseJulian L. Sandy L. Cameron L: E endUpstream Lakes35.0030.0025.00TP, ppb (ug/L)20.0015.0010.005.000.001-May-06 31-May-06 30-Jun-06 30-Jul-06 29-Aug-06 28-Sep-06 28-Oct-06Cameron L: E end Sturgeon L: S of Fenelon R. Sturgeon L: Snug Harbour CP6Sturgeon L: Sturgeon Pt buoy Sturgeon L: Muskrat Is C388 Pigeon L: Bottom Is.Pigeon Is: N Boyd Is. Pigeon L: adjacent Con 17 Pigeon L: Sandy Pt-Boyd Is.Pigeon L: Dead Horse Shoal23
Page 1: Kawartha Lake Stewards AssociationW
Page 4 and 5: Table of ContentsPresident’s Mess
Page 6 and 7: President’s Message2007 will be t
Page 8 and 9: species-at-risk and shoreline and i
Page 10: There are 3 different “phosphorus
Page 13 and 14: Map of the Kawartha Lakes 2006 Test
Page 15 and 16: subsequently deposited formations n
Page 17 and 18: These problems were solved with the
Page 19 and 20: Burleigh fallsThe cataracts effecti
Page 21 and 22: to estimate how much phosphorus is
Page 23: levels of these two inflows. Big Ba
Page 27 and 28: The high flow/low phosphorus theory
Page 29 and 30: Phosphorus Levels over 5 Years (eac
Page 31 and 32: Flow vs Phosphorus, 200530030Flow,
Page 33 and 34: Many other sources of phosphorus to
Page 35 and 36: eductions in phosphorus discharges
Page 37 and 38: Ontario’s Natural Resources and V
Page 39 and 40: the Base Flow Index (BFI) and perce
Page 41 and 42: systems and animal feces (beef, pou
Page 43 and 44: ANOVA analysis as no suitable data
Page 45 and 46: 3530Phosphorus (µg/l)252015105a ab
Page 47 and 48: How Much Algae Sticks to Macrophyte
Page 49 and 50: sites for both lakes (Pigeon Lake S
Page 51 and 52: The results from our initial survey
Page 53 and 54: Are our lakes at risk of switching
Page 55 and 56: Generally, then, the water in the K
Page 59 and 60: Appendix A:KLSA Mission Statement,
Page 61 and 62: Appendix B: Financial PartnersParks
Page 63: Date Expenses04-Jan-06 Bank Fees 3.
Page 68 and 69: At your request, subject to applica
Page 70 and 71: Lake-by-Lake E.coli ResultsTo put t
Page 72 and 73: To put the results in perspective:
Page 74 and 75:
To put the results in perspective:
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
LAKE NAME Site Description DateSecc
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Appendix G: GlossaryAquatic plants
Page 92 and 93:
plants. In the Kawartha Lakes area,
show all

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