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SIMPLIFY <br />WTP DESIGN & PROGRAMMING <br />Upon receiving Ramsey's RFP, AE2S <br />immediately took action: <br />1. Testing all wells that will feed the <br />plant <br />2. Identifying key source water quality <br />differences that, if not carefully <br />designed and programmed for, <br />could riddle your future with <br />complex operational issues, <br />compliance issues, and complaints <br />3. Reaching out to Total Control <br />Systems to establish a partnering <br />agreement <br />4. Developing a plan to deliver you an <br />"Easy Button" water plant. <br />Water Source <br />Well 3 <br />Iron (mg/L) <br />0.52 <br />Manganese (mg/L) <br />Ammonia (mg/L) <br />0.37 <br />0.221 <br />Well 4 <br />0.22 <br />0.355 <br />0.48 <br />Well 5 <br />0.74 <br />0.080 <br />0.45 <br />Well 6 <br />0.79 <br />0.044 <br />0.43 <br />Well 7 <br />0.75 <br />0.049 <br />0.47 <br />Well 8 <br />0.58 <br />0.225 <br />0.40 <br />In addition to iron and manganese for Wells 3 and 4 (that the Feasibility Study pilot tested <br />for), AE2S assessed all the above wells for iron, manganese, and ammonia impacts. <br />Adding a WTP Can <br />Cause Distribution <br />Challenges? <br />CORROSION: <br />Biological activity can reduce the pH in <br />a water system and lead to increased <br />lead and copper corrosion. There is <br />a direct correlation with Minnesota <br />communities that add filtration and then <br />exceed the regulated copper levels at <br />their consumer's tap. <br />0 <br />APPROACH & SCHEDULE (Di <br />TREATMENT GOALS <br />• Manganese Removal <br />• Iron Removal <br />• Accounting for Differing <br />Ammonia Levels <br />• LCR (Corrosion) Compliance <br />Avoid Taste & Odor Complaints <br />Avoid Color Complaints <br />Maintain Operator Health (in <br />the WTP) <br />• Minimize Waste / Maximize <br />Reclaim <br />Ammonia = <br />lOx <br />the chlorine demand of iron <br />= making it an extremely important <br />constituent in Ramsey's water system. <br />It often comes as a surprise that adding a water treatment plant in a community <br />actually compounds the degradation of water quality in their distribution <br />system. This is due to the inadvertent addition of air (dissolved oxygen) to the <br />water which initiates biological activity. <br />TASTE & ODORS: <br />Biological activity can lead to <br />drinking water taste and odors at <br />the consumer's tap. <br />® OTHER: <br />Chlorine dosing must be carefully <br />controlled to avoid "swimming <br />pool" types of odors at the <br />consumer's tap and to avoid <br />harmful fumes and corrosion in <br />the WTP. <br />Asking good questions is the first step in planning for Ramsey's success. Our team's <br />collaboration with your staff, experience in water plant design, successful optimization of <br />100's of plants, and successful history of working with Total Control Systems, will all be <br />harnessed to deliver a water plant that simplifies and maximizes your ability to serve Ramsey. <br />AE2S CITY OF RAMSEY DESIGN & CONSTRUCTION - MUNICIPAL WATER SUPPLY TREATMENT PROPOSAL 3.2 <br />