For example, Wapato Lake in Pierce County is on the list. Wapato has had a total of 14 reports submitted since the inception of WA Lakes. No reports since April 2006, and the single report submitted for that year was a "1". It has been 7 years since Wapato last had a "5" rated report (11/2005). How can Wapato (a juvenile angler only lake) be a top rated lake in WA?
I found similar conditions for several other lakes currently listed as a Top Rated Lake in WA, Columbia Park Pond, another juvenile angler only lake, makes the top 10 with a grand total of 14 reports all time, no reports since 2010, only 1 in 2010, next most current report was 7/06 and it was a "5". I found 2 double posted reports, both rated "5" the first is dated 3/29/03 and the second is 4/10/00 and at least 2 reports for other bodies of water, one for Ringold dated 9/22/01 rated a "5" and one for the Columbia River dated 7/08/06. There are other questionable reports for this 9.8 acre pond due to comments about bass fishing from boats, fishing around an island, etc.
IMO, more than half the lakes in the top rated list shouldn't be there for the same reasons listed above...
Twin Lakes in Ferry County is second highest rated lake in the state. I checked the reports, all 4 of them since 1/1/2010. One report submitted for 2012 and it was a "3". One report submitted for 2011 and it was a "5". Two reports submitted for 2010, one was a "5" and the other a "4". Next most current report was submitted in 2008 and it was a "5". Total reports submitted for this lake - 30.
Conconully Reservoir is #3 on the top lakes list, with a grand total of 5 reports in 2012, One "5", one "4", two "3"s and one "2". That's a 3.4 average for 2012. This lake has had a total of 14 reports since 1/1/2010.
Alta Lake in Okanogan County comes in at #4 with 30 total reports and only 4 reports since June 2006. One report in 2012 a "5", one in 2011 a "2", none in 2010, one in 2009 a "4", none in 2008, one in 2007 a "3". I'd call that a 2.3 average since 2006 yet it is the 4th highest rated lake in WA.
Wanncut in Okanogan County ranks #13 with no reports since 7/2010 and only 19 total reports.
How can some of our most popular lakes like Rufus Woods, Washington, American, Moses, Stevens, Roosevelt, Sammamish, etc. not make the grade? How can a lake with only 30 reports (Twin Lakes) and only one report in 2012, a "3", be the 2nd highest rated lake in the state?
Lake Washington - 176 reports for 2012, 1428 total reports submitted.
Lake Roosevelt - 50 reports for 2012, 457 total reports submitted.
Lake Sammamish - 64 reports for 2012, 508 total reports submitted.
Lake Stevens - 58 reports for 2012, 326 total reports submitted.
American Lake - 119 reports for 2012, 889 total reports submitted.
Rufus Woods - 32 reports for 2012, 480 total reports submitted.
Moses Lake - 18 reports for 2012, 116 total reports submitted.
It appears the methodology used to determine lake ratings is simply the total of lake report scores divided by total number of reports. I confirmed this by running the numbers for Wapato. I think there should be a weighted average, with the most current year having the highest value, each preceding year a lower overall value, and any year with no reports should be a negative value and detract from the overall rating. I'm no statistician, but the current formula really doesn't do justice for rating lakes in WA.
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