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Maintenance of irrigation reservoirs is challenged by water
level fluctuations, entrainment of debris on pump intakes, and less
than perfect sources of water. Often, well water sources have
problematic levels of iron or hydrogen sulfide and require
treatment before use. Watershed water sources can contain excess
nutrients and troublesome silt.
Typically, the size of a reservoir is designed to optimize
fluctuating demands for the water and yet allow adequate retention
times for settling of suspended particles. There are several
biological and chemical approaches that can be used to optimize the
performance of these reservoirs. Natural biological treatment using
algae, bacteria and zooplankton can be enhanced to improve water
quality. Filter feeding fish and invertebrates can also be utilized
for these purposes.
If well maintained, reservoirs can be completely algae free with
clear water. White Amur fish can be stocked in your pond to remove
vegetative growth when appropriately stocked. We can help you
determine the amount of fish you'll need based on the size and age
of your pond as well as nutrient levels. Stocking White Amur
instead of using algaecides avoids the use of chemicals that can
impact turf grass being irrigated. Using these fish to clean the
water is not only a better choice for the environment, but also
reduces the maintenance cost required to manage your pond.
Proper aeration also plays a crucial role in maintaining a clean,
effective irrigation reservoir. High-flow aerators and deep water
circulators help stabilize oxygen levels throughout the different
layers of water in your pond. This process promotes the natural
decomposition of organic debris in bottom sediments which otherwise
degrade water quality and the life of the pond.
When irrigation reservoirs are being used to provide a domestic
water supply, extra care is needed to achieve required quality
standards. Using a properly aerated reservoir can eliminate the
sulfur odors and the unpleasant off-flavors of blue-green algae
blooms as well as other unwanted organisms.
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