Kerry, the dam is indeed illegal. I'd contact these guys: http://www.washingtonwatertrust.org/our-board-directors Washington Water Trust is a neutral, nonregulatory, 501(c)(3) nonprofit dedicated to improving and protecting stream flows and water quality throughout Washington state. We use voluntary, market-based transactions and cooperative partnerships to create balanced solutions. So fish, agriculture, business and wildlife—upon which we all depend--can thrive. We lease and buy water from water rights holder, temporarily or permanently to leave instream, to improve and protect flows, especially during periods that are critical to the survival of imperiled salmon and steelhead. At the right time, at the right place, even just a small amount of water left instream can have an immensely positive impact.