Just remember that if the springs are below the waterline, if the water pressure in the pond is greater than the water pressure in the springs, they will flow backwards and drain the pond until the pressure stabilizes.

Plant Rye as soon as the pond is done to minimize erosion. Then plant another grass type that does well in your area that is perennial. I'd look into planting some marginals around the edge of the pond, and get 'em thick and 12"-24"+ tall to stop Geese from landing on the grass and walking into the pond.

Also, figure out what you will be placing in the pond for cover for the fish. Install that before the pond fills up.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).