Integrated Water Services

IWS recently received approval from the Arizona Department of Environmental Quality (ADEQ) for an Individual Aquifer Protection Permit to construct an IWS Denitrification Upflow Filter for a 30,000 gallon per day onsite wastewater treatment system serving the Shadow Ridge Subdivision in Mohave County, Arizona. Shadow Ridge is the first Individual APP permit for Advantex treatment system in Arizona. The Upflow filter is part of the overall treatment system which utilizes the Orenco AdvanTex pods for secondary treatment. The discharge requirements for Total Nitrogen from the IWS Upflow Filter are 10 mg/l. The Shadow Ridge Subdivision will be constructed in phases, with 71 residential home sites in the first phase. Each home will have its own septic tank effluent pump system (STEP) which is connected to the central treatment plant. The effluent is pumped from the STEP tank at each home and travels through a common gravity collection system to the treatment system.

The IWS Upflow Filter follows a 9-pod AdvanTex treatment system that was designed by Shephard-Wesnitzer, Inc. of Sedona. The collaborative approach between IWS and Shephard-Wesnitzer facilitated the approval from ADEQ for the first Individual APP permit for an AdvanTex treatment system over 24,000 gallons per day. Prior to Shadow Ridge and the IWS Upflow Filter, AdvanTex was primarily used in Arizona for small commercial and residential systems requiring only an APP General permit in which TN is generally non-restrictive. Once constructed, the wastewater treatment system will be owned and operated by Beaver Dam Water Co., Inc., a regulated Arizona utility. According to Mr. Bob Frisby of Beaver Dam Water Co., “The development team wanted to implement the most cost-effective, reliable, and easy-to-operate treatment system available that could be scaled as the development is phased in over several years.”