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Project Description <br />The project for which PAHA is requesting this loan is comprised of #wo companents. The first <br />and most critical element of the project is the instaUation of appraxim�tely 3800 feet of SDR-7 <br />t�igh density polyethylene (HDPE) pipe in finro s�ctions. The �rst section wil[ cannect the wef( to <br />#he previously installed 2500 foot HDPE section af fill iine which is currently capped and buried <br />in the ditch. This se�tion is approximately 36�4 feet in length. The second se�tion is <br />approximately 200 feet and wiiE connect ihe other end of the previousiy installed tine to the inlet <br />of the chlorination equipment in the treatmer�t buiiding. <br />The above mentioned building is the second component of the project which will be a simple <br />8'x10' framed building with a me�al roof to house the chlorinatian equipment and will be located <br />adjacent to the existing storage tank building. <br />Projec# Aiternatives <br />1. Da Nothing <br />The curreni water system is out of compliance with the Colorado Primary Drinking Water <br />Regulations and the system wilf be fined or shut down if we do no# achieve campliance <br />within an agreed to compliance schedule with the Colorado Department of Public Health <br />and Environment. <br />2. Add Contact Time at the Well and Treat There <br />(a.} Additional contact #ime could be achieved by adding s#orage tanks near the well, <br />treating the water before entering the storage tanks then pumping the treated water to <br />each distribution system (upper and lower). This wouid require a minimum of 6,000 <br />gailons of additional starage in a heated building, two transfer pumps to move the water <br />inta each distribution system, and a control system to operate the weil and each transfer <br />pump. The cost of this alternativa is equivalent the cost of compieting the dedicated fill <br />line. <br />(b.) Addi#ional contact time cauld be added by ins�alling addi�ional pipe between the well <br />and the existing distribution system but the amount af additional pipe is just tess than the <br />pipe needed to campfete the d�dicated �II line and would result in a back pressure at the <br />well that would exceed the design woricing pressure of th� existing well piping due to the <br />additionai flowing pressure drop through the extra piping. <br />Another consideration that applies to both 2a. and 2b.is operational flexibility. With the <br />current configuration whereby the ta�ks are filled through ihe distribution system, a leak <br />lacated in anp spo� i� a significant portiort of the distribution sys�em p�eve�rts us from <br />fifling the tanks which effectiv�ly shuts down the entire system. With a dedicated fill line, <br />rnrhen leaks occur ir� the distrib�tic�n system, a small section of distribution system can be <br />blocked off to isotaie the leak and the remainder of the system can be operaied <br />narmafly. This factor offsets any minor eos# savings which might be �ealized by not <br />instafling a dedicated fifi fin�. <br />Page 7 qf 14 <br />