May I mention that I do have more or less the exact same problem with the leak?
2 acre pond, built in the 60s, great Bass in by now
Deepest spot about 9 foot
Fed by creek and spring, natural overflow outlet.
Never any maintenance done and now the dam leaks around the old drain pipe including a wet spot of app. 8 by 20 feet.
Same issue with total lack of access and large trees growing for decades on the dam.
Estimated amount of leaking water is around 24,000 gallon a day but the water is clear and has no silt or clay residue in it.
I googled a lot and could find only one company anywhere close by - thy showed up for a site inspection, good communication but they seem overly eager to start the job ASAP and their quote is around 50K.
Does anybody have any experience with the following company?
http://www.naturalwaterscapes.com/Best regards
Frank
