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<br />Water Control <br /> <br />Many water-level control devices have <br />been developed. A few of these are <br />pictured in this booklet. The most simple <br />devices take advantage of natural water <br />flows by retaining runoff at set levels or by <br />allowing water to flow only into or out of a <br />wetland rather than both in and out. <br />These simple devices may be sufficient to <br />maintain your wetland. Your local soil <br />conservationist or biologist can help you <br />obtain these devices and make <br />recommendations on their installation. <br />More complicated wetlands manage- <br />ment will require the ability to add or <br />remove water as necessary. Such water <br />management means pumping water into <br /> <br />or out of a wetland. The pumping system <br />may consist of a complex series of chan- <br />nels, dikes, dams, and pump stations or it <br />may be only a mobile pump operated by a <br />tractor or small gasoline engine. In a few <br />cases groundwater pumped from wells <br />has been used to provide the necessary <br />water. <br />Before you begin a management pro- <br />gram of manipulating water levels be sure <br />that you have a legal right to do so. Water <br />rights laws vary greatly from state to state <br />and before you begin a water manage- <br />ment program it may be ne!cessary for you <br />to apply for water use or disposal permits. <br /> <br /> <br />21 <br />