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What was the need for the JWPP?

Both Cottonwood and Arapahoe County Water and Wastewater Authority (ACWWA) own alluvial water rights to withdraw water from wells along Cherry Creek. This is considered “renewable water” because the alluvium is recharged each year as rain and snowmelt results in new water flowing down Cherry Creek, so it is a good source of long-term water supplies. The water in the Cherry Creek alluvium does contain trace amounts of unregulated contaminants from upstream human and natural sources including treated wastewater effluent. As a result, Cottonwood and ACWWA retained consultants to provide a water plant that included processes to provide a very high level of treatment which would remove trace contaminants and “soften the water.” When the plant opened, it was hailed as a successful partnership and an innovation in water treatment.