From the US Army Corps of Engineers:
http://www.lrp.usace.army.mil/rec/lakes/woodcock.htm
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Authorized by the Flood Control Act of 1962, Woodcock Creek Lake is one of 16 flood control projects in the Pittsburgh District. The project’s purpose is threefold: to reduce downstream flooding as part of the French Creek flood control system, to improve downstream water quality and to provide a diversified array of general recreation activities.
Woodcock Creek Lake has the capability to store the equivalent run-off of 8.2 inches of precipitation from its 45.65 square mile drainage area above the dam. Since its completion in 1973, Woodcock has prevented flood damages estimated to be in excess of $29 million.
Woodcock Creek Lake also stores water to be released downstream during periods of low flows in French Creek. These releases of water have the effect of improving water quality and quantity for both domestic and industrial uses. Also, without Woodcock’s stream flow augmentation the widespread recreational use of French Creek would be drastically curtailed.
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This cache is not not at the posted coordinates. To retrieve this cache, you must collect all 14 codes from the Abandoned 198 series.
Once you have collected all the codes, apply them to this puzzle:
ABCDEFG
HIJKLMN
Solving this will provide you with the true coordinates to this cache.
Hey, I'm a nice guy. Here's all the numbers you're going to find, in numerical order:
00011223344468
I dont know if that will help, but it might.
Have fun!